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linux/drivers/usb/host/u132-hcd.c

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USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
/*
* Host Controller Driver for the Elan Digital Systems U132 adapter
*
* Copyright(C) 2006 Elan Digital Systems Limited
* http://www.elandigitalsystems.com
*
* Author and Maintainer - Tony Olech - Elan Digital Systems
* tony.olech@elandigitalsystems.com
*
* This program is free software;you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2.
*
*
* This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
* based on various USB host drivers in the 2.6.15 linux kernel
* with constant reference to the 3rd Edition of Linux Device Drivers
* published by O'Reilly
*
* The U132 adapter is a USB to CardBus adapter specifically designed
* for PC cards that contain an OHCI host controller. Typical PC cards
* are the Orange Mobile 3G Option GlobeTrotter Fusion card.
*
* The U132 adapter will *NOT *work with PC cards that do not contain
* an OHCI controller. A simple way to test whether a PC card has an
* OHCI controller as an interface is to insert the PC card directly
* into a laptop(or desktop) with a CardBus slot and if "lspci" shows
* a new USB controller and "lsusb -v" shows a new OHCI Host Controller
* then there is a good chance that the U132 adapter will support the
* PC card.(you also need the specific client driver for the PC card)
*
* Please inform the Author and Maintainer about any PC cards that
* contain OHCI Host Controller and work when directly connected to
* an embedded CardBus slot but do not work when they are connected
* via an ELAN U132 adapter.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/delay.h>
#include <linux/ioport.h>
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card ELAN's U132 is a USB to CardBus OHCI controller adapter, designed specifically for CardBus 3G data cards to function in machines without a CardBus slot. The "ftdi-elan" module is a USB client driver, that detects a supported CardBus OHCI controller plugged into the U132 adapter and thereafter provides the conduit for for access by the "u132-hcd" module. The "u132-hcd" module is a (cut-down OHCI) host controller that supports a single OHCI function of the CardBus card inserted into the U132 adapter. The problem with the initial implementation is that when the CardBus card inserted into the U132 adapter has multiple functions (and a CardBus card can support up to 4 functions), it was the first function that was arbitrarily choosen. The first batch of 3G cards tested, like the Merlin Qualcomm V620, have two functions each supporting a seperate USB OHCI host controller, of which it was that first function that is wired up to the 3G modem. Then along comes the Vodafone Mobile Connect 3G/GPRS data card, aka "Option GT 3G Quad" as printed on it's rear or "Option N.V. GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it has the meaningful functionality in the second CardBus function. That presents a problem because it was the "ftdi-elan" module alone that knows how to communicate to the embedded CardBus slot and the "u132-hcd" module alone that knows how to access the pcmcia configuration and CardBus accessible memory space. And of course, the information about attached (internally hardwired) devices is contained within USB configuration embedded somewhere within the CardBus card. If only the "u132-hcd" module probe() interface could return a result code that propagated back to the instigating function platform_device_register() then the "ftdi-elan" module could try an alternative CardBus function. However in spite of the recent changes to the drivers/base/ routines that moved device_attach() from bus_add_device() to bus_attach_device() both of those routines lose the "failed to attach" 0 result code and thus the calling routine, namely device_add() is incapable of propaging the "failed to attach" condition back to platform_device_add() and consequently back to the caller of platform_device_register() Experiments show that patching bus_attach_device() to return ENODEV fails with the kernel locking up very early during boot. But, however, if the patch is restricted to calls from platform_device_add() then it does seem to work. Unfortunately, until the kernel's drivers/base is properly modified to propagate -ENODEV back to the caller of platform_device_register(), it is necessary to "fix" the "ftdi-elan" module by importing knowledge from the "u132-hcd" module. This is the reason for the duplicated functionality introduced in this patch. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 21:16:22 +08:00
#include <linux/pci_ids.h>
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/timer.h>
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
USB: make hcd.h public (drivers dependency) The usbcore headers: hcd.h and hub.h are shared between usbcore, HCDs and a couple of other drivers (e.g. USBIP modules). So, it makes sense to move them into a more public location and to cleanup dependency of those modules on kernel internal headers. This patch moves hcd.h from drivers/usb/core into include/linux/usb/ Signed-of-by: Eric Lescouet <eric@lescouet.org> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-25 05:21:52 +08:00
#include <linux/usb/hcd.h>
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
#include <linux/workqueue.h>
#include <linux/platform_device.h>
USB: use mutex instead of semaphore in the ELAN U132 adapter driver The ELAN U132 adapter driver uses the semaphore u132_module_lock as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-14 03:26:59 +08:00
#include <linux/mutex.h>
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/byteorder.h>
USB: fix more ftdi-elan/u132-hcd #include lossage Partial fix for bogosity in the ftdi-elan and u132-hcd drivers ... these have no business including with the internals of other drivers, much less doing so in a broken way!! A previous patch resolved one build fix, this resolves another... Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-30 01:21:14 +08:00
/* FIXME ohci.h is ONLY for internal use by the OHCI driver.
* If you're going to try stuff like this, you need to split
* out shareable stuff (register declarations?) into its own
* file, maybe name <linux/usb/ohci.h>
*/
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
#include "ohci.h"
#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
OHCI_INTR_WDH)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited");
MODULE_DESCRIPTION("U132 USB Host Controller Driver");
MODULE_LICENSE("GPL");
#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
INT_MODULE_PARM(testing, 0);
/* Some boards misreport power switching/overcurrent*/
usb: ehci: ohci: fix bool assignments When assigning bool use true instead of 1. If declaring it as static and it's false there's no need to initialize it, since static variables are zeroed by default. Caught by coccinelle. Signed-off-by: Geyslan G. Bem <geyslan@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-03 07:25:23 +08:00
static bool distrust_firmware = true;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
module_param(distrust_firmware, bool, 0);
MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
"t setup");
USB: make drivers/usb/host/u132-hcd.c:u132_hcd_wait static This patch makes the needlessly global "u132_hcd_wait" static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-11-20 10:23:54 +08:00
static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
/*
* u132_module_lock exists to protect access to global variables
*
*/
USB: use mutex instead of semaphore in the ELAN U132 adapter driver The ELAN U132 adapter driver uses the semaphore u132_module_lock as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-14 03:26:59 +08:00
static struct mutex u132_module_lock;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
static int u132_exiting;
static int u132_instances;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
static struct list_head u132_static_list;
/*
* end of the global variables protected by u132_module_lock
*/
static struct workqueue_struct *workqueue;
#define MAX_U132_PORTS 7
#define MAX_U132_ADDRS 128
#define MAX_U132_UDEVS 4
#define MAX_U132_ENDPS 100
#define MAX_U132_RINGS 4
static const char *cc_to_text[16] = {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
"No Error ",
"CRC Error ",
"Bit Stuff ",
"Data Togg ",
"Stall ",
"DevNotResp ",
"PIDCheck ",
"UnExpPID ",
"DataOver ",
"DataUnder ",
"(for hw) ",
"(for hw) ",
"BufferOver ",
"BuffUnder ",
"(for HCD) ",
"(for HCD) "
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
struct u132_port {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132;
int reset;
int enable;
int power;
int Status;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
struct u132_addr {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u8 address;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
struct u132_udev {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct kref kref;
struct usb_device *usb_device;
u8 enumeration;
u8 udev_number;
u8 usb_addr;
u8 portnumber;
u8 endp_number_in[16];
u8 endp_number_out[16];
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
#define ENDP_QUEUE_SHIFT 3
#define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT)
#define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1)
struct u132_urbq {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct list_head urb_more;
struct urb *urb;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
struct u132_spin {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
spinlock_t slock;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
struct u132_endp {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct kref kref;
u8 udev_number;
u8 endp_number;
u8 usb_addr;
u8 usb_endp;
struct u132 *u132;
struct list_head endp_ring;
struct u132_ring *ring;
unsigned toggle_bits:2;
unsigned active:1;
unsigned delayed:1;
unsigned input:1;
unsigned output:1;
unsigned pipetype:2;
unsigned dequeueing:1;
unsigned edset_flush:1;
unsigned spare_bits:14;
unsigned long jiffies;
struct usb_host_endpoint *hep;
struct u132_spin queue_lock;
u16 queue_size;
u16 queue_last;
u16 queue_next;
struct urb *urb_list[ENDP_QUEUE_SIZE];
struct list_head urb_more;
struct delayed_work scheduler;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
struct u132_ring {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
unsigned in_use:1;
unsigned length:7;
u8 number;
struct u132 *u132;
struct u132_endp *curr_endp;
struct delayed_work scheduler;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
struct u132 {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct kref kref;
struct list_head u132_list;
struct mutex sw_lock;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
struct mutex scheduler_lock;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_platform_data *board;
struct platform_device *platform_dev;
struct u132_ring ring[MAX_U132_RINGS];
int sequence_num;
int going;
int power;
int reset;
int num_ports;
u32 hc_control;
u32 hc_fminterval;
u32 hc_roothub_status;
u32 hc_roothub_a;
u32 hc_roothub_portstatus[MAX_ROOT_PORTS];
int flags;
unsigned long next_statechange;
struct delayed_work monitor;
int num_endpoints;
struct u132_addr addr[MAX_U132_ADDRS];
struct u132_udev udev[MAX_U132_UDEVS];
struct u132_port port[MAX_U132_PORTS];
struct u132_endp *endp[MAX_U132_ENDPS];
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
USB: ftdi-elan.c: fixes and cleanups This patch contains the following possible cleanups: - make the needlessly global ftdi_release_platform_dev() static - remove the unused usb_ftdi_elan_read_reg() - proper prototypes for the following functions: - usb_ftdi_elan_read_pcimem() - usb_ftdi_elan_write_pcimem() Note that the misplaced prototypes for the latter ones in drivers/usb/host/u132-hcd.c were buggy. Depending on the calling convention of the architecture calling one of them could have turned your stack into garbage. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-11-20 10:24:44 +08:00
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
/*
Fix misc .c/.h comment typos Fix various .c/.h typos in comments (no code changes). Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-11-30 12:24:39 +08:00
* these cannot be inlines because we need the structure offset!!
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
* Does anyone have a better way?????
*/
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card ELAN's U132 is a USB to CardBus OHCI controller adapter, designed specifically for CardBus 3G data cards to function in machines without a CardBus slot. The "ftdi-elan" module is a USB client driver, that detects a supported CardBus OHCI controller plugged into the U132 adapter and thereafter provides the conduit for for access by the "u132-hcd" module. The "u132-hcd" module is a (cut-down OHCI) host controller that supports a single OHCI function of the CardBus card inserted into the U132 adapter. The problem with the initial implementation is that when the CardBus card inserted into the U132 adapter has multiple functions (and a CardBus card can support up to 4 functions), it was the first function that was arbitrarily choosen. The first batch of 3G cards tested, like the Merlin Qualcomm V620, have two functions each supporting a seperate USB OHCI host controller, of which it was that first function that is wired up to the 3G modem. Then along comes the Vodafone Mobile Connect 3G/GPRS data card, aka "Option GT 3G Quad" as printed on it's rear or "Option N.V. GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it has the meaningful functionality in the second CardBus function. That presents a problem because it was the "ftdi-elan" module alone that knows how to communicate to the embedded CardBus slot and the "u132-hcd" module alone that knows how to access the pcmcia configuration and CardBus accessible memory space. And of course, the information about attached (internally hardwired) devices is contained within USB configuration embedded somewhere within the CardBus card. If only the "u132-hcd" module probe() interface could return a result code that propagated back to the instigating function platform_device_register() then the "ftdi-elan" module could try an alternative CardBus function. However in spite of the recent changes to the drivers/base/ routines that moved device_attach() from bus_add_device() to bus_attach_device() both of those routines lose the "failed to attach" 0 result code and thus the calling routine, namely device_add() is incapable of propaging the "failed to attach" condition back to platform_device_add() and consequently back to the caller of platform_device_register() Experiments show that patching bus_attach_device() to return ENODEV fails with the kernel locking up very early during boot. But, however, if the patch is restricted to calls from platform_device_add() then it does seem to work. Unfortunately, until the kernel's drivers/base is properly modified to propagate -ENODEV back to the caller of platform_device_register(), it is necessary to "fix" the "ftdi-elan" module by importing knowledge from the "u132-hcd" module. This is the reason for the duplicated functionality introduced in this patch. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 21:16:22 +08:00
#define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
offsetof(struct ohci_regs, member), 0, data);
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card ELAN's U132 is a USB to CardBus OHCI controller adapter, designed specifically for CardBus 3G data cards to function in machines without a CardBus slot. The "ftdi-elan" module is a USB client driver, that detects a supported CardBus OHCI controller plugged into the U132 adapter and thereafter provides the conduit for for access by the "u132-hcd" module. The "u132-hcd" module is a (cut-down OHCI) host controller that supports a single OHCI function of the CardBus card inserted into the U132 adapter. The problem with the initial implementation is that when the CardBus card inserted into the U132 adapter has multiple functions (and a CardBus card can support up to 4 functions), it was the first function that was arbitrarily choosen. The first batch of 3G cards tested, like the Merlin Qualcomm V620, have two functions each supporting a seperate USB OHCI host controller, of which it was that first function that is wired up to the 3G modem. Then along comes the Vodafone Mobile Connect 3G/GPRS data card, aka "Option GT 3G Quad" as printed on it's rear or "Option N.V. GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it has the meaningful functionality in the second CardBus function. That presents a problem because it was the "ftdi-elan" module alone that knows how to communicate to the embedded CardBus slot and the "u132-hcd" module alone that knows how to access the pcmcia configuration and CardBus accessible memory space. And of course, the information about attached (internally hardwired) devices is contained within USB configuration embedded somewhere within the CardBus card. If only the "u132-hcd" module probe() interface could return a result code that propagated back to the instigating function platform_device_register() then the "ftdi-elan" module could try an alternative CardBus function. However in spite of the recent changes to the drivers/base/ routines that moved device_attach() from bus_add_device() to bus_attach_device() both of those routines lose the "failed to attach" 0 result code and thus the calling routine, namely device_add() is incapable of propaging the "failed to attach" condition back to platform_device_add() and consequently back to the caller of platform_device_register() Experiments show that patching bus_attach_device() to return ENODEV fails with the kernel locking up very early during boot. But, however, if the patch is restricted to calls from platform_device_add() then it does seem to work. Unfortunately, until the kernel's drivers/base is properly modified to propagate -ENODEV back to the caller of platform_device_register(), it is necessary to "fix" the "ftdi-elan" module by importing knowledge from the "u132-hcd" module. This is the reason for the duplicated functionality introduced in this patch. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 21:16:22 +08:00
#define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
offsetof(struct ohci_regs, member), 0, data);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
#define u132_read_pcimem(u132, member, data) \
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \
ohci_regs, member), 0, data);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
#define u132_write_pcimem(u132, member, data) \
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \
ohci_regs, member), 0, data);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
static inline struct u132 *udev_to_u132(struct u132_udev *udev)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u8 udev_number = udev->udev_number;
return container_of(udev, struct u132, udev[udev_number]);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return (struct u132 *)(hcd->hcd_priv);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline struct usb_hcd *u132_to_hcd(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return container_of((void *)u132, struct usb_hcd, hcd_priv);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_disable(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_to_hcd(u132)->state = HC_STATE_HALT;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
#define kref_to_u132(d) container_of(d, struct u132, kref)
#define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref)
#define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref)
#include "../misc/usb_u132.h"
static const char hcd_name[] = "u132_hcd";
#define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \
USB_PORT_STAT_C_RESET) << 16)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
static void u132_hcd_delete(struct kref *kref)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = kref_to_u132(kref);
struct platform_device *pdev = u132->platform_dev;
struct usb_hcd *hcd = u132_to_hcd(u132);
u132->going += 1;
mutex_lock(&u132_module_lock);
list_del_init(&u132->u132_list);
u132_instances -= 1;
mutex_unlock(&u132_module_lock);
dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13"
"2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev);
usb_put_hcd(hcd);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_u132_put_kref(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_put(&u132->kref, u132_hcd_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_u132_init_kref(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_init(&u132->kref);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_udev_delete(struct kref *kref)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_udev *udev = kref_to_u132_udev(kref);
udev->udev_number = 0;
udev->usb_device = NULL;
udev->usb_addr = 0;
udev->enumeration = 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_put(&udev->kref, u132_udev_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_get(&udev->kref);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_udev_init_kref(struct u132 *u132,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_udev *udev)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_init(&udev->kref);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_put(&u132->kref, u132_hcd_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
unsigned int delta)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (delta > 0) {
if (queue_delayed_work(workqueue, &ring->scheduler, delta))
return;
} else if (queue_delayed_work(workqueue, &ring->scheduler, 0))
return;
kref_put(&u132->kref, u132_hcd_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
unsigned int delta)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_get(&u132->kref);
u132_ring_requeue_work(u132, ring, delta);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (cancel_delayed_work(&ring->scheduler))
kref_put(&u132->kref, u132_hcd_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_endp_delete(struct kref *kref)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_endp *endp = kref_to_u132_endp(kref);
struct u132 *u132 = endp->u132;
u8 usb_addr = endp->usb_addr;
u8 usb_endp = endp->usb_endp;
u8 address = u132->addr[usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
u8 endp_number = endp->endp_number;
struct usb_host_endpoint *hep = endp->hep;
struct u132_ring *ring = endp->ring;
struct list_head *head = &endp->endp_ring;
ring->length -= 1;
if (endp == ring->curr_endp) {
if (list_empty(head)) {
ring->curr_endp = NULL;
list_del(head);
} else {
struct u132_endp *next_endp = list_entry(head->next,
struct u132_endp, endp_ring);
ring->curr_endp = next_endp;
list_del(head);
}
} else
list_del(head);
if (endp->input) {
udev->endp_number_in[usb_endp] = 0;
u132_udev_put_kref(u132, udev);
}
if (endp->output) {
udev->endp_number_out[usb_endp] = 0;
u132_udev_put_kref(u132, udev);
}
u132->endp[endp_number - 1] = NULL;
hep->hcpriv = NULL;
kfree(endp);
u132_u132_put_kref(u132);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_put(&endp->kref, u132_endp_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_get(&endp->kref);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_endp_init_kref(struct u132 *u132,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_endp *endp)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_init(&endp->kref);
kref_get(&u132->kref);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
unsigned int delta)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 22:57:56 +08:00
if (queue_delayed_work(workqueue, &endp->scheduler, delta))
kref_get(&endp->kref);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (cancel_delayed_work(&endp->scheduler))
kref_put(&endp->kref, u132_endp_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline void u132_monitor_put_kref(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
kref_put(&u132->kref, u132_hcd_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta)
{
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 22:57:56 +08:00
if (queue_delayed_work(workqueue, &u132->monitor, delta))
kref_get(&u132->kref);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta)
{
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 22:57:56 +08:00
if (!queue_delayed_work(workqueue, &u132->monitor, delta))
kref_put(&u132->kref, u132_hcd_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_monitor_cancel_work(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (cancel_delayed_work(&u132->monitor))
kref_put(&u132->kref, u132_hcd_delete);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int read_roothub_info(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u32 revision;
int retval;
retval = u132_read_pcimem(u132, revision, &revision);
if (retval) {
dev_err(&u132->platform_dev->dev, "error %d accessing device co"
"ntrol\n", retval);
return retval;
} else if ((revision & 0xFF) == 0x10) {
} else if ((revision & 0xFF) == 0x11) {
} else {
dev_err(&u132->platform_dev->dev, "device revision is not valid"
" %08X\n", revision);
return -ENODEV;
}
retval = u132_read_pcimem(u132, control, &u132->hc_control);
if (retval) {
dev_err(&u132->platform_dev->dev, "error %d accessing device co"
"ntrol\n", retval);
return retval;
}
retval = u132_read_pcimem(u132, roothub.status,
&u132->hc_roothub_status);
if (retval) {
dev_err(&u132->platform_dev->dev, "error %d accessing device re"
"g roothub.status\n", retval);
return retval;
}
retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a);
if (retval) {
dev_err(&u132->platform_dev->dev, "error %d accessing device re"
"g roothub.a\n", retval);
return retval;
}
{
int I = u132->num_ports;
int i = 0;
while (I-- > 0) {
retval = u132_read_pcimem(u132, roothub.portstatus[i],
&u132->hc_roothub_portstatus[i]);
if (retval) {
dev_err(&u132->platform_dev->dev, "error %d acc"
"essing device roothub.portstatus[%d]\n"
, retval, i);
return retval;
} else
i += 1;
}
}
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 22:57:56 +08:00
static void u132_hcd_monitor_work(struct work_struct *work)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = container_of(work, struct u132, monitor.work);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
u132_monitor_put_kref(u132);
return;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
u132_monitor_put_kref(u132);
return;
} else {
int retval;
mutex_lock(&u132->sw_lock);
retval = read_roothub_info(u132);
if (retval) {
struct usb_hcd *hcd = u132_to_hcd(u132);
u132_disable(u132);
u132->going = 1;
mutex_unlock(&u132->sw_lock);
usb_hc_died(hcd);
ftdi_elan_gone_away(u132->platform_dev);
u132_monitor_put_kref(u132);
return;
} else {
u132_monitor_requeue_work(u132, 500);
mutex_unlock(&u132->sw_lock);
return;
}
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct urb *urb, int status)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_ring *ring;
unsigned long irqs;
struct usb_hcd *hcd = u132_to_hcd(u132);
urb->error_count = 0;
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
usb_hcd_unlink_urb_from_ep(hcd, urb);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
endp->queue_next += 1;
if (ENDP_QUEUE_SIZE > --endp->queue_size) {
endp->active = 0;
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
} else {
struct list_head *next = endp->urb_more.next;
struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
urb_more);
list_del(next);
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
urbq->urb;
endp->active = 0;
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
kfree(urbq);
}
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
ring = endp->ring;
ring->in_use = 0;
u132_ring_cancel_work(u132, ring);
u132_ring_queue_work(u132, ring, 0);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
usb_hcd_giveback_urb(hcd, urb, status);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct urb *urb, int status)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct urb *urb, int status)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
unsigned long irqs;
struct usb_hcd *hcd = u132_to_hcd(u132);
urb->error_count = 0;
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
usb_hcd_unlink_urb_from_ep(hcd, urb);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
endp->queue_next += 1;
if (ENDP_QUEUE_SIZE > --endp->queue_size) {
endp->active = 0;
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
} else {
struct list_head *next = endp->urb_more.next;
struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
urb_more);
list_del(next);
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
urbq->urb;
endp->active = 0;
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
kfree(urbq);
drivers/usb: Remove unnecessary return's from void functions Greg prefers this to go through the trivial tree. http://lkml.org/lkml/2010/6/24/1 There are about 2500 void functions in drivers/usb Only a few used return; at end of function. Standardize them a bit. Moved a statement down a line in drivers/usb/host/u132-hcd.c Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-08-05 01:40:08 +08:00
}
usb_hcd_giveback_urb(hcd, urb, status);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline int edset_input(struct u132 *u132, struct u132_ring *ring,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
int toggle_bits, int error_count, int condition_code, int repeat_number,
int halted, int skipped, int actual, int non_null))
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp,
urb, address, endp->usb_endp, toggle_bits, callback);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline int edset_setup(struct u132 *u132, struct u132_ring *ring,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
int toggle_bits, int error_count, int condition_code, int repeat_number,
int halted, int skipped, int actual, int non_null))
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp,
urb, address, endp->usb_endp, toggle_bits, callback);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline int edset_single(struct u132 *u132, struct u132_ring *ring,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
int toggle_bits, int error_count, int condition_code, int repeat_number,
int halted, int skipped, int actual, int non_null))
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number,
endp, urb, address, endp->usb_endp, toggle_bits, callback);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static inline int edset_output(struct u132 *u132, struct u132_ring *ring,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
int toggle_bits, int error_count, int condition_code, int repeat_number,
int halted, int skipped, int actual, int non_null))
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number,
endp, urb, address, endp->usb_endp, toggle_bits, callback);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
/*
* must not LOCK sw_lock
*
*/
static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
u8 address = u132->addr[endp->usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_ring *ring = endp->ring;
u8 *u = urb->transfer_buffer + urb->actual_length;
u8 *b = buf;
int L = len;
while (L-- > 0)
*u++ = *b++;
urb->actual_length += len;
if ((condition_code == TD_CC_NOERROR) &&
(urb->transfer_buffer_length > urb->actual_length)) {
endp->toggle_bits = toggle_bits;
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
1 & toggle_bits);
if (urb->actual_length > 0) {
int retval;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = edset_single(u132, ring, endp, urb,
address, endp->toggle_bits,
u132_hcd_interrupt_recv);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb,
retval);
} else {
ring->in_use = 0;
endp->active = 0;
endp->jiffies = jiffies +
msecs_to_jiffies(urb->interval);
u132_ring_cancel_work(u132, ring);
u132_ring_queue_work(u132, ring, 0);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
}
return;
} else if ((condition_code == TD_DATAUNDERRUN) &&
((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
endp->toggle_bits = toggle_bits;
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
1 & toggle_bits);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
} else {
if (condition_code == TD_CC_NOERROR) {
endp->toggle_bits = toggle_bits;
usb_settoggle(udev->usb_device, endp->usb_endp,
0, 1 & toggle_bits);
} else if (condition_code == TD_CC_STALL) {
endp->toggle_bits = 0x2;
usb_settoggle(udev->usb_device, endp->usb_endp,
0, 0);
} else {
endp->toggle_bits = 0x2;
usb_settoggle(udev->usb_device, endp->usb_endp,
0, 0);
dev_err(&u132->platform_dev->dev, "urb=%p givin"
"g back INTERRUPT %s\n", urb,
cc_to_text[condition_code]);
}
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb,
cc_to_error[condition_code]);
return;
}
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
u8 address = u132->addr[endp->usb_addr].address;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_ring *ring = endp->ring;
urb->actual_length += len;
endp->toggle_bits = toggle_bits;
if (urb->transfer_buffer_length > urb->actual_length) {
int retval;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = edset_output(u132, ring, endp, urb, address,
endp->toggle_bits, u132_hcd_bulk_output_sent);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
} else {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
}
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
u8 address = u132->addr[endp->usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_ring *ring = endp->ring;
u8 *u = urb->transfer_buffer + urb->actual_length;
u8 *b = buf;
int L = len;
while (L-- > 0)
*u++ = *b++;
urb->actual_length += len;
if ((condition_code == TD_CC_NOERROR) &&
(urb->transfer_buffer_length > urb->actual_length)) {
int retval;
endp->toggle_bits = toggle_bits;
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
1 & toggle_bits);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
ring->number, endp, urb, address,
endp->usb_endp, endp->toggle_bits,
u132_hcd_bulk_input_recv);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
} else if (condition_code == TD_CC_NOERROR) {
endp->toggle_bits = toggle_bits;
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
1 & toggle_bits);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb,
cc_to_error[condition_code]);
return;
} else if ((condition_code == TD_DATAUNDERRUN) &&
((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
endp->toggle_bits = toggle_bits;
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
1 & toggle_bits);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
} else if (condition_code == TD_DATAUNDERRUN) {
endp->toggle_bits = toggle_bits;
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
1 & toggle_bits);
dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK"
") giving back BULK IN %s\n", urb,
cc_to_text[condition_code]);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
} else if (condition_code == TD_CC_STALL) {
endp->toggle_bits = 0x2;
usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb,
cc_to_error[condition_code]);
return;
} else {
endp->toggle_bits = 0x2;
usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
dev_err(&u132->platform_dev->dev, "urb=%p giving back B"
"ULK IN code=%d %s\n", urb, condition_code,
cc_to_text[condition_code]);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb,
cc_to_error[condition_code]);
return;
}
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
u8 address = u132->addr[endp->usb_addr].address;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_ring *ring = endp->ring;
u8 *u = urb->transfer_buffer;
u8 *b = buf;
int L = len;
while (L-- > 0)
*u++ = *b++;
urb->actual_length = len;
if ((condition_code == TD_CC_NOERROR) || ((condition_code ==
TD_DATAUNDERRUN) && ((urb->transfer_flags &
URB_SHORT_NOT_OK) == 0))) {
int retval;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
ring->number, endp, urb, address,
endp->usb_endp, 0x3,
u132_hcd_configure_empty_sent);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
} else if (condition_code == TD_CC_STALL) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
dev_warn(&u132->platform_dev->dev, "giving back SETUP I"
"NPUT STALL urb %p\n", urb);
u132_hcd_giveback_urb(u132, endp, urb,
cc_to_error[condition_code]);
return;
} else {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
dev_err(&u132->platform_dev->dev, "giving back SETUP IN"
"PUT %s urb %p\n", cc_to_text[condition_code],
urb);
u132_hcd_giveback_urb(u132, endp, urb,
cc_to_error[condition_code]);
return;
}
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
u8 address = u132->addr[endp->usb_addr].address;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (usb_pipein(urb->pipe)) {
int retval;
struct u132_ring *ring = endp->ring;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
ring->number, endp, urb, address,
endp->usb_endp, 0,
u132_hcd_configure_input_recv);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
} else {
int retval;
struct u132_ring *ring = endp->ring;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
ring->number, endp, urb, address,
endp->usb_endp, 0,
u132_hcd_configure_empty_recv);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
}
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
u8 address = u132->addr[endp->usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132->addr[0].address = 0;
endp->usb_addr = udev->usb_addr;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int retval;
struct u132_ring *ring = endp->ring;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
ring->number, endp, urb, 0, endp->usb_endp, 0,
u132_hcd_enumeration_empty_recv);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
return;
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
u8 address = u132->addr[endp->usb_addr].address;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int retval;
struct u132_ring *ring = endp->ring;
u8 *u = urb->transfer_buffer;
u8 *b = buf;
int L = len;
while (L-- > 0)
*u++ = *b++;
urb->actual_length = len;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
ring->number, endp, urb, address, endp->usb_endp, 0x3,
u132_hcd_initial_empty_sent);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int len, int toggle_bits, int error_count, int condition_code,
int repeat_number, int halted, int skipped, int actual, int non_null)
{
struct u132_endp *endp = data;
struct u132 *u132 = endp->u132;
u8 address = u132->addr[endp->usb_addr].address;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
return;
} else if (endp->dequeueing) {
endp->dequeueing = 0;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
return;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
return;
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
} else if (!urb->unlinked) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int retval;
struct u132_ring *ring = endp->ring;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
ring->number, endp, urb, address, endp->usb_endp, 0,
u132_hcd_initial_input_recv);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
} else {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
"unlinked=%d\n", urb, urb->unlinked);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_giveback_urb(u132, endp, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
/*
* this work function is only executed from the work queue
*
*/
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 22:57:56 +08:00
static void u132_hcd_ring_work_scheduler(struct work_struct *work)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_ring *ring =
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 22:57:56 +08:00
container_of(work, struct u132_ring, scheduler.work);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = ring->u132;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (ring->in_use) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_ring_put_kref(u132, ring);
return;
} else if (ring->curr_endp) {
usb: host: u132-hcd: use list_for_each_entry Use list_for_each_entry() instead of list_for_each() to simplify the code. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-19 00:34:29 +08:00
struct u132_endp *endp, *last_endp = ring->curr_endp;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
unsigned long wakeup = 0;
usb: host: u132-hcd: use list_for_each_entry Use list_for_each_entry() instead of list_for_each() to simplify the code. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-19 00:34:29 +08:00
list_for_each_entry(endp, &last_endp->endp_ring, endp_ring) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (endp->queue_next == endp->queue_last) {
} else if ((endp->delayed == 0)
|| time_after_eq(jiffies, endp->jiffies)) {
ring->curr_endp = endp;
u132_endp_cancel_work(u132, last_endp);
u132_endp_queue_work(u132, last_endp, 0);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_ring_put_kref(u132, ring);
return;
} else {
unsigned long delta = endp->jiffies - jiffies;
if (delta > wakeup)
wakeup = delta;
}
}
if (last_endp->queue_next == last_endp->queue_last) {
} else if ((last_endp->delayed == 0) || time_after_eq(jiffies,
last_endp->jiffies)) {
u132_endp_cancel_work(u132, last_endp);
u132_endp_queue_work(u132, last_endp, 0);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_ring_put_kref(u132, ring);
return;
} else {
unsigned long delta = last_endp->jiffies - jiffies;
if (delta > wakeup)
wakeup = delta;
}
if (wakeup > 0) {
u132_ring_requeue_work(u132, ring, wakeup);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return;
} else {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_ring_put_kref(u132, ring);
return;
}
} else {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_ring_put_kref(u132, ring);
return;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 22:57:56 +08:00
static void u132_hcd_endp_work_scheduler(struct work_struct *work)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_ring *ring;
struct u132_endp *endp =
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 22:57:56 +08:00
container_of(work, struct u132_endp, scheduler.work);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = endp->u132;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_lock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
ring = endp->ring;
if (endp->edset_flush) {
endp->edset_flush = 0;
if (endp->dequeueing)
usb_ftdi_elan_edset_flush(u132->platform_dev,
ring->number, endp);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
return;
} else if (endp->active) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
return;
} else if (ring->in_use) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
return;
} else if (endp->queue_next == endp->queue_last) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
return;
} else if (endp->pipetype == PIPE_INTERRUPT) {
u8 address = u132->addr[endp->usb_addr].address;
if (ring->in_use) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
return;
} else {
int retval;
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
endp->queue_next];
endp->active = 1;
ring->curr_endp = endp;
ring->in_use = 1;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = edset_single(u132, ring, endp, urb, address,
endp->toggle_bits, u132_hcd_interrupt_recv);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
}
} else if (endp->pipetype == PIPE_CONTROL) {
u8 address = u132->addr[endp->usb_addr].address;
if (ring->in_use) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
return;
} else if (address == 0) {
int retval;
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
endp->queue_next];
endp->active = 1;
ring->curr_endp = endp;
ring->in_use = 1;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = edset_setup(u132, ring, endp, urb, address,
0x2, u132_hcd_initial_setup_sent);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
} else if (endp->usb_addr == 0) {
int retval;
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
endp->queue_next];
endp->active = 1;
ring->curr_endp = endp;
ring->in_use = 1;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = edset_setup(u132, ring, endp, urb, 0, 0x2,
u132_hcd_enumeration_address_sent);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
} else {
int retval;
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
endp->queue_next];
USB: fix u132-hcd code/data warning Fix gcc warning on mixed declarations/code: drivers/usb/host/u132-hcd.c:1450: warning: ISO C90 forbids mixed declarations and code Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-07 07:46:03 +08:00
address = u132->addr[endp->usb_addr].address;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
endp->active = 1;
ring->curr_endp = endp;
ring->in_use = 1;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = edset_setup(u132, ring, endp, urb, address,
0x2, u132_hcd_configure_setup_sent);
if (retval != 0)
u132_hcd_giveback_urb(u132, endp, urb, retval);
return;
}
} else {
if (endp->input) {
u8 address = u132->addr[endp->usb_addr].address;
if (ring->in_use) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
return;
} else {
int retval;
struct urb *urb = endp->urb_list[
ENDP_QUEUE_MASK & endp->queue_next];
endp->active = 1;
ring->curr_endp = endp;
ring->in_use = 1;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = edset_input(u132, ring, endp, urb,
address, endp->toggle_bits,
u132_hcd_bulk_input_recv);
if (retval == 0) {
} else
u132_hcd_giveback_urb(u132, endp, urb,
retval);
return;
}
} else { /* output pipe */
u8 address = u132->addr[endp->usb_addr].address;
if (ring->in_use) {
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_put_kref(u132, endp);
return;
} else {
int retval;
struct urb *urb = endp->urb_list[
ENDP_QUEUE_MASK & endp->queue_next];
endp->active = 1;
ring->curr_endp = endp;
ring->in_use = 1;
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_unlock(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = edset_output(u132, ring, endp, urb,
address, endp->toggle_bits,
u132_hcd_bulk_output_sent);
if (retval == 0) {
} else
u132_hcd_giveback_urb(u132, endp, urb,
retval);
return;
}
}
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
USB: u132-hcd.c - Fix a warning when CONFIG_PM=n I noticed this warning with CONFING_PM=n ... drivers/usb/host/u132-hcd.c:1525: warning: 'port_power' defined but not used ... Signed-off-by: Gabriel Craciunescu <nix.or.die@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-30 18:57:03 +08:00
#ifdef CONFIG_PM
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
static void port_power(struct u132 *u132, int pn, int is_on)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132->port[pn].power = is_on;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
USB: u132-hcd.c - Fix a warning when CONFIG_PM=n I noticed this warning with CONFING_PM=n ... drivers/usb/host/u132-hcd.c:1525: warning: 'port_power' defined but not used ... Signed-off-by: Gabriel Craciunescu <nix.or.die@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-30 18:57:03 +08:00
#endif
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
static void u132_power(struct u132 *u132, int is_on)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_hcd *hcd = u132_to_hcd(u132)
; /* hub is inactive unless the port is powered */
if (is_on) {
if (u132->power)
return;
u132->power = 1;
} else {
u132->power = 0;
hcd->state = HC_STATE_HALT;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_periodic_reinit(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int retval;
u32 fi = u132->hc_fminterval & 0x03fff;
u32 fit;
u32 fminterval;
retval = u132_read_pcimem(u132, fminterval, &fminterval);
if (retval)
return retval;
fit = fminterval & FIT;
retval = u132_write_pcimem(u132, fminterval,
(fit ^ FIT) | u132->hc_fminterval);
if (retval)
return retval;
usb: host: u132-hcd: Simplify return statement Replace redundant variable use in return statement. Signed-off-by: Saurabh Karajgaonkar <skarajga@visteon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04 22:03:45 +08:00
return u132_write_pcimem(u132, periodicstart,
((9 * fi) / 10) & 0x3fff);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static char *hcfs2string(int state)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
switch (state) {
case OHCI_USB_RESET:
return "reset";
case OHCI_USB_RESUME:
return "resume";
case OHCI_USB_OPER:
return "operational";
case OHCI_USB_SUSPEND:
return "suspend";
}
return "?";
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_init(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int retval;
u32 control;
u132_disable(u132);
u132->next_statechange = jiffies;
retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE);
if (retval)
return retval;
retval = u132_read_pcimem(u132, control, &control);
if (retval)
return retval;
if (u132->num_ports == 0) {
u32 rh_a = -1;
retval = u132_read_pcimem(u132, roothub.a, &rh_a);
if (retval)
return retval;
u132->num_ports = rh_a & RH_A_NDP;
retval = read_roothub_info(u132);
if (retval)
return retval;
}
if (u132->num_ports > MAX_U132_PORTS)
return -EINVAL;
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
/* Start an OHCI controller, set the BUS operational
* resets USB and controller
* enable interrupts
*/
static int u132_run(struct u132 *u132)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int retval;
u32 control;
u32 status;
u32 fminterval;
u32 periodicstart;
u32 cmdstatus;
u32 roothub_a;
int mask = OHCI_INTR_INIT;
int first = u132->hc_fminterval == 0;
int sleep_time = 0;
int reset_timeout = 30; /* ... allow extra time */
u132_disable(u132);
if (first) {
u32 temp;
retval = u132_read_pcimem(u132, fminterval, &temp);
if (retval)
return retval;
u132->hc_fminterval = temp & 0x3fff;
u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16;
}
retval = u132_read_pcimem(u132, control, &u132->hc_control);
if (retval)
return retval;
dev_info(&u132->platform_dev->dev, "resetting from state '%s', control "
"= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS),
u132->hc_control);
switch (u132->hc_control & OHCI_CTRL_HCFS) {
case OHCI_USB_OPER:
sleep_time = 0;
break;
case OHCI_USB_SUSPEND:
case OHCI_USB_RESUME:
u132->hc_control &= OHCI_CTRL_RWC;
u132->hc_control |= OHCI_USB_RESUME;
sleep_time = 10;
break;
default:
u132->hc_control &= OHCI_CTRL_RWC;
u132->hc_control |= OHCI_USB_RESET;
sleep_time = 50;
break;
}
retval = u132_write_pcimem(u132, control, u132->hc_control);
if (retval)
return retval;
retval = u132_read_pcimem(u132, control, &control);
if (retval)
return retval;
msleep(sleep_time);
retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
if (retval)
return retval;
if (!(roothub_a & RH_A_NPS)) {
int temp; /* power down each port */
for (temp = 0; temp < u132->num_ports; temp++) {
retval = u132_write_pcimem(u132,
roothub.portstatus[temp], RH_PS_LSDA);
if (retval)
return retval;
}
}
retval = u132_read_pcimem(u132, control, &control);
if (retval)
return retval;
retry:
retval = u132_read_pcimem(u132, cmdstatus, &status);
if (retval)
return retval;
retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR);
if (retval)
return retval;
extra: {
retval = u132_read_pcimem(u132, cmdstatus, &status);
if (retval)
return retval;
if (0 != (status & OHCI_HCR)) {
if (--reset_timeout == 0) {
dev_err(&u132->platform_dev->dev, "USB HC reset"
" timed out!\n");
return -ENODEV;
} else {
msleep(5);
goto extra;
}
}
}
if (u132->flags & OHCI_QUIRK_INITRESET) {
retval = u132_write_pcimem(u132, control, u132->hc_control);
if (retval)
return retval;
retval = u132_read_pcimem(u132, control, &control);
if (retval)
return retval;
}
retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000);
if (retval)
return retval;
retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000);
if (retval)
return retval;
retval = u132_write_pcimem(u132, hcca, 0x00000000);
if (retval)
return retval;
retval = u132_periodic_reinit(u132);
if (retval)
return retval;
retval = u132_read_pcimem(u132, fminterval, &fminterval);
if (retval)
return retval;
retval = u132_read_pcimem(u132, periodicstart, &periodicstart);
if (retval)
return retval;
if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
if (!(u132->flags & OHCI_QUIRK_INITRESET)) {
u132->flags |= OHCI_QUIRK_INITRESET;
goto retry;
} else
dev_err(&u132->platform_dev->dev, "init err(%08x %04x)"
"\n", fminterval, periodicstart);
} /* start controller operations */
u132->hc_control &= OHCI_CTRL_RWC;
u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
retval = u132_write_pcimem(u132, control, u132->hc_control);
if (retval)
return retval;
retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF);
if (retval)
return retval;
retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus);
if (retval)
return retval;
retval = u132_read_pcimem(u132, control, &control);
if (retval)
return retval;
u132_to_hcd(u132)->state = HC_STATE_RUNNING;
retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE);
if (retval)
return retval;
retval = u132_write_pcimem(u132, intrstatus, mask);
if (retval)
return retval;
retval = u132_write_pcimem(u132, intrdisable,
OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
OHCI_INTR_SO);
if (retval)
return retval; /* handle root hub init quirks ... */
retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
if (retval)
return retval;
roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
if (u132->flags & OHCI_QUIRK_SUPERIO) {
roothub_a |= RH_A_NOCP;
roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
retval = u132_write_pcimem(u132, roothub.a, roothub_a);
if (retval)
return retval;
} else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) {
roothub_a |= RH_A_NPS;
retval = u132_write_pcimem(u132, roothub.a, roothub_a);
if (retval)
return retval;
}
retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC);
if (retval)
return retval;
retval = u132_write_pcimem(u132, roothub.b,
(roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
if (retval)
return retval;
retval = u132_read_pcimem(u132, control, &control);
if (retval)
return retval;
mdelay((roothub_a >> 23) & 0x1fe);
u132_to_hcd(u132)->state = HC_STATE_RUNNING;
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_hcd_stop(struct usb_hcd *hcd)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b"
"een removed %d\n", u132, hcd, u132->going);
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
"ed\n", hcd);
} else {
mutex_lock(&u132->sw_lock);
msleep(100);
u132_power(u132, 0);
mutex_unlock(&u132->sw_lock);
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_hcd_start(struct usb_hcd *hcd)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
return -ESHUTDOWN;
} else if (hcd->self.controller) {
int retval;
struct platform_device *pdev =
to_platform_device(hcd->self.controller);
u16 vendor = ((struct u132_platform_data *)
USB: host: use dev_get_platdata() Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-30 18:59:40 +08:00
dev_get_platdata(&pdev->dev))->vendor;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u16 device = ((struct u132_platform_data *)
USB: host: use dev_get_platdata() Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-30 18:59:40 +08:00
dev_get_platdata(&pdev->dev))->device;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
mutex_lock(&u132->sw_lock);
msleep(10);
if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) {
u132->flags = OHCI_QUIRK_AMD756;
} else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) {
dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar"
"ounds unavailable\n");
} else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8)
u132->flags |= OHCI_QUIRK_ZFMICRO;
retval = u132_run(u132);
if (retval) {
u132_disable(u132);
u132->going = 1;
}
msleep(100);
mutex_unlock(&u132->sw_lock);
return retval;
} else {
dev_err(&u132->platform_dev->dev, "platform_device missing\n");
return -ENODEV;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_hcd_reset(struct usb_hcd *hcd)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
return -ESHUTDOWN;
} else {
int retval;
mutex_lock(&u132->sw_lock);
retval = u132_init(u132);
if (retval) {
u132_disable(u132);
u132->going = 1;
}
mutex_unlock(&u132->sw_lock);
return retval;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int create_endpoint_and_queue_int(struct u132 *u132,
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
struct u132_udev *udev, struct urb *urb,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
gfp_t mem_flags)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_ring *ring;
unsigned long irqs;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
int rc;
u8 endp_number;
struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (!endp)
return -ENOMEM;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
spin_lock_init(&endp->queue_lock.slock);
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
if (rc) {
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
kfree(endp);
return rc;
}
endp_number = ++u132->num_endpoints;
urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
INIT_LIST_HEAD(&endp->urb_more);
ring = endp->ring = &u132->ring[0];
if (ring->curr_endp) {
list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
} else {
INIT_LIST_HEAD(&endp->endp_ring);
ring->curr_endp = endp;
}
ring->length += 1;
endp->dequeueing = 0;
endp->edset_flush = 0;
endp->active = 0;
endp->delayed = 0;
endp->endp_number = endp_number;
endp->u132 = u132;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
endp->hep = urb->ep;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
endp->pipetype = usb_pipetype(urb->pipe);
u132_endp_init_kref(u132, endp);
if (usb_pipein(urb->pipe)) {
endp->toggle_bits = 0x2;
usb_settoggle(udev->usb_device, usb_endp, 0, 0);
endp->input = 1;
endp->output = 0;
udev->endp_number_in[usb_endp] = endp_number;
u132_udev_get_kref(u132, udev);
} else {
endp->toggle_bits = 0x2;
usb_settoggle(udev->usb_device, usb_endp, 1, 0);
endp->input = 0;
endp->output = 1;
udev->endp_number_out[usb_endp] = endp_number;
u132_udev_get_kref(u132, udev);
}
urb->hcpriv = u132;
endp->delayed = 1;
endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
endp->udev_number = address;
endp->usb_addr = usb_addr;
endp->usb_endp = usb_endp;
endp->queue_size = 1;
endp->queue_last = 0;
endp->queue_next = 0;
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval));
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
static int queue_int_on_old_endpoint(struct u132 *u132,
struct u132_udev *udev, struct urb *urb,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
u8 usb_endp, u8 address)
{
urb->hcpriv = u132;
endp->delayed = 1;
endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
} else {
struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
GFP_ATOMIC);
if (urbq == NULL) {
endp->queue_size -= 1;
return -ENOMEM;
} else {
list_add_tail(&urbq->urb_more, &endp->urb_more);
urbq->urb = urb;
}
}
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int create_endpoint_and_queue_bulk(struct u132 *u132,
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
struct u132_udev *udev, struct urb *urb,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
gfp_t mem_flags)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int ring_number;
struct u132_ring *ring;
unsigned long irqs;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
int rc;
u8 endp_number;
struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (!endp)
return -ENOMEM;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
spin_lock_init(&endp->queue_lock.slock);
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
if (rc) {
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
kfree(endp);
return rc;
}
endp_number = ++u132->num_endpoints;
urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
INIT_LIST_HEAD(&endp->urb_more);
endp->dequeueing = 0;
endp->edset_flush = 0;
endp->active = 0;
endp->delayed = 0;
endp->endp_number = endp_number;
endp->u132 = u132;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
endp->hep = urb->ep;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
endp->pipetype = usb_pipetype(urb->pipe);
u132_endp_init_kref(u132, endp);
if (usb_pipein(urb->pipe)) {
endp->toggle_bits = 0x2;
usb_settoggle(udev->usb_device, usb_endp, 0, 0);
ring_number = 3;
endp->input = 1;
endp->output = 0;
udev->endp_number_in[usb_endp] = endp_number;
u132_udev_get_kref(u132, udev);
} else {
endp->toggle_bits = 0x2;
usb_settoggle(udev->usb_device, usb_endp, 1, 0);
ring_number = 2;
endp->input = 0;
endp->output = 1;
udev->endp_number_out[usb_endp] = endp_number;
u132_udev_get_kref(u132, udev);
}
ring = endp->ring = &u132->ring[ring_number - 1];
if (ring->curr_endp) {
list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
} else {
INIT_LIST_HEAD(&endp->endp_ring);
ring->curr_endp = endp;
}
ring->length += 1;
urb->hcpriv = u132;
endp->udev_number = address;
endp->usb_addr = usb_addr;
endp->usb_endp = usb_endp;
endp->queue_size = 1;
endp->queue_last = 0;
endp->queue_next = 0;
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
u132_endp_queue_work(u132, endp, 0);
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
struct urb *urb,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
u8 usb_endp, u8 address)
{
urb->hcpriv = u132;
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
} else {
struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
GFP_ATOMIC);
if (urbq == NULL) {
endp->queue_size -= 1;
return -ENOMEM;
} else {
list_add_tail(&urbq->urb_more, &endp->urb_more);
urbq->urb = urb;
}
}
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int create_endpoint_and_queue_control(struct u132 *u132,
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
struct urb *urb,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp,
gfp_t mem_flags)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_ring *ring;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
unsigned long irqs;
int rc;
u8 endp_number;
struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (!endp)
return -ENOMEM;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
spin_lock_init(&endp->queue_lock.slock);
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
if (rc) {
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
kfree(endp);
return rc;
}
endp_number = ++u132->num_endpoints;
urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
INIT_LIST_HEAD(&endp->urb_more);
ring = endp->ring = &u132->ring[0];
if (ring->curr_endp) {
list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
} else {
INIT_LIST_HEAD(&endp->endp_ring);
ring->curr_endp = endp;
}
ring->length += 1;
endp->dequeueing = 0;
endp->edset_flush = 0;
endp->active = 0;
endp->delayed = 0;
endp->endp_number = endp_number;
endp->u132 = u132;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
endp->hep = urb->ep;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_endp_init_kref(u132, endp);
u132_endp_get_kref(u132, endp);
if (usb_addr == 0) {
u8 address = u132->addr[usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
endp->udev_number = address;
endp->usb_addr = usb_addr;
endp->usb_endp = usb_endp;
endp->input = 1;
endp->output = 1;
endp->pipetype = usb_pipetype(urb->pipe);
u132_udev_init_kref(u132, udev);
u132_udev_get_kref(u132, udev);
udev->endp_number_in[usb_endp] = endp_number;
udev->endp_number_out[usb_endp] = endp_number;
urb->hcpriv = u132;
endp->queue_size = 1;
endp->queue_last = 0;
endp->queue_next = 0;
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
u132_endp_queue_work(u132, endp, 0);
return 0;
} else { /*(usb_addr > 0) */
u8 address = u132->addr[usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
endp->udev_number = address;
endp->usb_addr = usb_addr;
endp->usb_endp = usb_endp;
endp->input = 1;
endp->output = 1;
endp->pipetype = usb_pipetype(urb->pipe);
u132_udev_get_kref(u132, udev);
udev->enumeration = 2;
udev->endp_number_in[usb_endp] = endp_number;
udev->endp_number_out[usb_endp] = endp_number;
urb->hcpriv = u132;
endp->queue_size = 1;
endp->queue_last = 0;
endp->queue_next = 0;
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
u132_endp_queue_work(u132, endp, 0);
return 0;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int queue_control_on_old_endpoint(struct u132 *u132,
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
struct urb *urb,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
u8 usb_endp)
{
if (usb_addr == 0) {
if (usb_pipein(urb->pipe)) {
urb->hcpriv = u132;
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
endp->urb_list[ENDP_QUEUE_MASK &
endp->queue_last++] = urb;
} else {
struct u132_urbq *urbq =
kmalloc(sizeof(struct u132_urbq),
GFP_ATOMIC);
if (urbq == NULL) {
endp->queue_size -= 1;
return -ENOMEM;
} else {
list_add_tail(&urbq->urb_more,
&endp->urb_more);
urbq->urb = urb;
}
}
return 0;
} else { /* usb_pipeout(urb->pipe) */
struct u132_addr *addr = &u132->addr[usb_dev->devnum];
int I = MAX_U132_UDEVS;
int i = 0;
while (--I > 0) {
struct u132_udev *udev = &u132->udev[++i];
if (udev->usb_device) {
continue;
} else {
udev->enumeration = 1;
u132->addr[0].address = i;
endp->udev_number = i;
udev->udev_number = i;
udev->usb_addr = usb_dev->devnum;
u132_udev_init_kref(u132, udev);
udev->endp_number_in[usb_endp] =
endp->endp_number;
u132_udev_get_kref(u132, udev);
udev->endp_number_out[usb_endp] =
endp->endp_number;
udev->usb_device = usb_dev;
((u8 *) (urb->setup_packet))[2] =
addr->address = i;
u132_udev_get_kref(u132, udev);
break;
}
}
if (I == 0) {
dev_err(&u132->platform_dev->dev, "run out of d"
"evice space\n");
return -EINVAL;
}
urb->hcpriv = u132;
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
endp->urb_list[ENDP_QUEUE_MASK &
endp->queue_last++] = urb;
} else {
struct u132_urbq *urbq =
kmalloc(sizeof(struct u132_urbq),
GFP_ATOMIC);
if (urbq == NULL) {
endp->queue_size -= 1;
return -ENOMEM;
} else {
list_add_tail(&urbq->urb_more,
&endp->urb_more);
urbq->urb = urb;
}
}
return 0;
}
} else { /*(usb_addr > 0) */
u8 address = u132->addr[usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
urb->hcpriv = u132;
if (udev->enumeration != 2)
udev->enumeration = 2;
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
urb;
} else {
struct u132_urbq *urbq =
kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC);
if (urbq == NULL) {
endp->queue_size -= 1;
return -ENOMEM;
} else {
list_add_tail(&urbq->urb_more, &endp->urb_more);
urbq->urb = urb;
}
}
return 0;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
gfp_t mem_flags)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (irqs_disabled()) {
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd __GFP_WAIT has been used to identify atomic context in callers that hold spinlocks or are in interrupts. They are expected to be high priority and have access one of two watermarks lower than "min" which can be referred to as the "atomic reserve". __GFP_HIGH users get access to the first lower watermark and can be called the "high priority reserve". Over time, callers had a requirement to not block when fallback options were available. Some have abused __GFP_WAIT leading to a situation where an optimisitic allocation with a fallback option can access atomic reserves. This patch uses __GFP_ATOMIC to identify callers that are truely atomic, cannot sleep and have no alternative. High priority users continue to use __GFP_HIGH. __GFP_DIRECT_RECLAIM identifies callers that can sleep and are willing to enter direct reclaim. __GFP_KSWAPD_RECLAIM to identify callers that want to wake kswapd for background reclaim. __GFP_WAIT is redefined as a caller that is willing to enter direct reclaim and wake kswapd for background reclaim. This patch then converts a number of sites o __GFP_ATOMIC is used by callers that are high priority and have memory pools for those requests. GFP_ATOMIC uses this flag. o Callers that have a limited mempool to guarantee forward progress clear __GFP_DIRECT_RECLAIM but keep __GFP_KSWAPD_RECLAIM. bio allocations fall into this category where kswapd will still be woken but atomic reserves are not used as there is a one-entry mempool to guarantee progress. o Callers that are checking if they are non-blocking should use the helper gfpflags_allow_blocking() where possible. This is because checking for __GFP_WAIT as was done historically now can trigger false positives. Some exceptions like dm-crypt.c exist where the code intent is clearer if __GFP_DIRECT_RECLAIM is used instead of the helper due to flag manipulations. o Callers that built their own GFP flags instead of starting with GFP_KERNEL and friends now also need to specify __GFP_KSWAPD_RECLAIM. The first key hazard to watch out for is callers that removed __GFP_WAIT and was depending on access to atomic reserves for inconspicuous reasons. In some cases it may be appropriate for them to use __GFP_HIGH. The second key hazard is callers that assembled their own combination of GFP flags instead of starting with something like GFP_KERNEL. They may now wish to specify __GFP_KSWAPD_RECLAIM. It's almost certainly harmless if it's missed in most cases as other activity will wake kswapd. Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Vitaly Wool <vitalywool@gmail.com> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-07 08:28:21 +08:00
if (gfpflags_allow_blocking(mem_flags)) {
USB: u132-hcd: Fix seperate word in printk message This patch fix seperated word in printk message. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-30 11:51:51 +08:00
printk(KERN_ERR "invalid context for function that might sleep\n");
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return -EINVAL;
}
}
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
dev_err(&u132->platform_dev->dev, "device is being removed "
"urb=%p\n", urb);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return -ESHUTDOWN;
} else {
u8 usb_addr = usb_pipedevice(urb->pipe);
u8 usb_endp = usb_pipeendpoint(urb->pipe);
struct usb_device *usb_dev = urb->dev;
if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
u8 address = u132->addr[usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
struct u132_endp *endp = urb->ep->hcpriv;
urb->actual_length = 0;
if (endp) {
unsigned long irqs;
int retval;
spin_lock_irqsave(&endp->queue_lock.slock,
irqs);
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
retval = usb_hcd_link_urb_to_ep(hcd, urb);
if (retval == 0) {
retval = queue_int_on_old_endpoint(
u132, udev, urb,
usb_dev, endp,
usb_addr, usb_endp,
address);
if (retval)
usb_hcd_unlink_urb_from_ep(
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
hcd, urb);
}
spin_unlock_irqrestore(&endp->queue_lock.slock,
irqs);
if (retval) {
return retval;
} else {
u132_endp_queue_work(u132, endp,
msecs_to_jiffies(urb->interval))
;
return 0;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
}
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
} else if (u132->num_endpoints == MAX_U132_ENDPS) {
return -EINVAL;
} else { /*(endp == NULL) */
return create_endpoint_and_queue_int(u132, udev,
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
urb, usb_dev, usb_addr,
usb_endp, address, mem_flags);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
}
} else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
dev_err(&u132->platform_dev->dev, "the hardware does no"
"t support PIPE_ISOCHRONOUS\n");
return -EINVAL;
} else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
u8 address = u132->addr[usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
struct u132_endp *endp = urb->ep->hcpriv;
urb->actual_length = 0;
if (endp) {
unsigned long irqs;
int retval;
spin_lock_irqsave(&endp->queue_lock.slock,
irqs);
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
retval = usb_hcd_link_urb_to_ep(hcd, urb);
if (retval == 0) {
retval = queue_bulk_on_old_endpoint(
u132, udev, urb,
usb_dev, endp,
usb_addr, usb_endp,
address);
if (retval)
usb_hcd_unlink_urb_from_ep(
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
hcd, urb);
}
spin_unlock_irqrestore(&endp->queue_lock.slock,
irqs);
if (retval) {
return retval;
} else {
u132_endp_queue_work(u132, endp, 0);
return 0;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
}
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
} else if (u132->num_endpoints == MAX_U132_ENDPS) {
return -EINVAL;
} else
return create_endpoint_and_queue_bulk(u132,
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
udev, urb, usb_dev, usb_addr,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
usb_endp, address, mem_flags);
} else {
struct u132_endp *endp = urb->ep->hcpriv;
u16 urb_size = 8;
u8 *b = urb->setup_packet;
int i = 0;
char data[30 * 3 + 4];
char *d = data;
int m = (sizeof(data) - 1) / 3;
int l = 0;
data[0] = 0;
while (urb_size-- > 0) {
if (i > m) {
} else if (i++ < m) {
int w = sprintf(d, " %02X", *b++);
d += w;
l += w;
} else
d += sprintf(d, " ..");
}
if (endp) {
unsigned long irqs;
int retval;
spin_lock_irqsave(&endp->queue_lock.slock,
irqs);
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
retval = usb_hcd_link_urb_to_ep(hcd, urb);
if (retval == 0) {
retval = queue_control_on_old_endpoint(
u132, urb, usb_dev,
endp, usb_addr,
usb_endp);
if (retval)
usb_hcd_unlink_urb_from_ep(
hcd, urb);
}
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
spin_unlock_irqrestore(&endp->queue_lock.slock,
irqs);
if (retval) {
return retval;
} else {
u132_endp_queue_work(u132, endp, 0);
return 0;
}
} else if (u132->num_endpoints == MAX_U132_ENDPS) {
return -EINVAL;
} else
return create_endpoint_and_queue_control(u132,
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
urb, usb_dev, usb_addr, usb_endp,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
mem_flags);
}
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int dequeue_from_overflow_chain(struct u132 *u132,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132_endp *endp, struct urb *urb)
{
usb: host: u132-hcd: use list_for_each_entry Use list_for_each_entry() instead of list_for_each() to simplify the code. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-19 00:34:29 +08:00
struct u132_urbq *urbq;
list_for_each_entry(urbq, &endp->urb_more, urb_more) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (urbq->urb == urb) {
struct usb_hcd *hcd = u132_to_hcd(u132);
usb: host: u132-hcd: use list_for_each_entry Use list_for_each_entry() instead of list_for_each() to simplify the code. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-19 00:34:29 +08:00
list_del(&urbq->urb_more);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
endp->queue_size -= 1;
urb->error_count = 0;
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
usb_hcd_giveback_urb(hcd, urb, 0);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return 0;
} else
continue;
}
dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring"
"[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X"
"\n", urb, endp->endp_number, endp, endp->ring->number,
endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
endp->usb_endp, endp->usb_addr, endp->queue_size,
endp->queue_next, endp->queue_last);
return -EINVAL;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
struct urb *urb, int status)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
unsigned long irqs;
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
int rc;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status);
if (rc) {
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
return rc;
}
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (endp->queue_size == 0) {
dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]"
"=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb,
endp->endp_number, endp, endp->ring->number,
endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
endp->usb_endp, endp->usb_addr);
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
return -EINVAL;
}
if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) {
if (endp->active) {
endp->dequeueing = 1;
endp->edset_flush = 1;
u132_endp_queue_work(u132, endp, 0);
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
return 0;
} else {
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
u132_hcd_abandon_urb(u132, endp, urb, status);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return 0;
}
} else {
u16 queue_list = 0;
u16 queue_size = endp->queue_size;
u16 queue_scan = endp->queue_next;
struct urb **urb_slot = NULL;
while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
if (urb == endp->urb_list[ENDP_QUEUE_MASK &
++queue_scan]) {
urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
queue_scan];
break;
} else
continue;
}
while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
*urb_slot = endp->urb_list[ENDP_QUEUE_MASK &
++queue_scan];
urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
queue_scan];
}
if (urb_slot) {
struct usb_hcd *hcd = u132_to_hcd(u132);
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
usb_hcd_unlink_urb_from_ep(hcd, urb);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
endp->queue_size -= 1;
if (list_empty(&endp->urb_more)) {
spin_unlock_irqrestore(&endp->queue_lock.slock,
irqs);
} else {
struct list_head *next = endp->urb_more.next;
struct u132_urbq *urbq = list_entry(next,
struct u132_urbq, urb_more);
list_del(next);
*urb_slot = urbq->urb;
spin_unlock_irqrestore(&endp->queue_lock.slock,
irqs);
kfree(urbq);
} urb->error_count = 0;
USB: Eliminate urb->status usage! This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-25 03:42:24 +08:00
usb_hcd_giveback_urb(hcd, urb, status);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return 0;
} else if (list_empty(&endp->urb_more)) {
dev_err(&u132->platform_dev->dev, "urb=%p not found in "
"endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr"
"=%d size=%d next=%04X last=%04X\n", urb,
endp->endp_number, endp, endp->ring->number,
endp->input ? 'I' : ' ',
endp->output ? 'O' : ' ', endp->usb_endp,
endp->usb_addr, endp->queue_size,
endp->queue_next, endp->queue_last);
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
return -EINVAL;
} else {
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
int retval;
usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb);
retval = dequeue_from_overflow_chain(u132, endp,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
urb);
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
return retval;
}
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
USB: make HCDs responsible for managing endpoint queues This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-08 23:48:02 +08:00
static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 2) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else {
u8 usb_addr = usb_pipedevice(urb->pipe);
u8 usb_endp = usb_pipeendpoint(urb->pipe);
u8 address = u132->addr[usb_addr].address;
struct u132_udev *udev = &u132->udev[address];
if (usb_pipein(urb->pipe)) {
u8 endp_number = udev->endp_number_in[usb_endp];
struct u132_endp *endp = u132->endp[endp_number - 1];
return u132_endp_urb_dequeue(u132, endp, urb, status);
} else {
u8 endp_number = udev->endp_number_out[usb_endp];
struct u132_endp *endp = u132->endp[endp_number - 1];
return u132_endp_urb_dequeue(u132, endp, urb, status);
}
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_endpoint_disable(struct usb_hcd *hcd,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_host_endpoint *hep)
{
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 2) {
dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p"
") has been removed %d\n", u132, hcd, hep,
u132->going);
} else {
struct u132_endp *endp = hep->hcpriv;
if (endp)
u132_endp_put_kref(u132, endp);
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_get_frame(struct usb_hcd *hcd)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
return -ESHUTDOWN;
} else {
int frame = 0;
dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n");
msleep(100);
return frame;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_roothub_descriptor(struct u132 *u132,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_hub_descriptor *desc)
{
int retval;
u16 temp;
u32 rh_a = -1;
u32 rh_b = -1;
retval = u132_read_pcimem(u132, roothub.a, &rh_a);
if (retval)
return retval;
u132-hcd: use USB_DT_HUB Fix using the bare number to set the 'bDescriptorType' field of the Hub Descriptor while the value is #define'd in <linux/usb/ch11.h>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-29 06:28:15 +08:00
desc->bDescriptorType = USB_DT_HUB;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24;
desc->bHubContrCurrent = 0;
desc->bNbrPorts = u132->num_ports;
temp = 1 + (u132->num_ports / 8);
desc->bDescLength = 7 + 2 * temp;
u132-hcd: use HUB_CHAR_* Fix using the bare numbers to set the 'wHubCharacteristics' field of the Hub Descriptor while the values are #define'd in <linux/usb/ch11.h>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-19 06:49:59 +08:00
temp = HUB_CHAR_COMMON_LPSM | HUB_CHAR_COMMON_OCPM;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (rh_a & RH_A_NPS)
u132-hcd: use HUB_CHAR_* Fix using the bare numbers to set the 'wHubCharacteristics' field of the Hub Descriptor while the values are #define'd in <linux/usb/ch11.h>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-19 06:49:59 +08:00
temp |= HUB_CHAR_NO_LPSM;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (rh_a & RH_A_PSM)
u132-hcd: use HUB_CHAR_* Fix using the bare numbers to set the 'wHubCharacteristics' field of the Hub Descriptor while the values are #define'd in <linux/usb/ch11.h>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-19 06:49:59 +08:00
temp |= HUB_CHAR_INDV_PORT_LPSM;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (rh_a & RH_A_NOCP)
u132-hcd: use HUB_CHAR_* Fix using the bare numbers to set the 'wHubCharacteristics' field of the Hub Descriptor while the values are #define'd in <linux/usb/ch11.h>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-19 06:49:59 +08:00
temp |= HUB_CHAR_NO_OCPM;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
else if (rh_a & RH_A_OCPM)
u132-hcd: use HUB_CHAR_* Fix using the bare numbers to set the 'wHubCharacteristics' field of the Hub Descriptor while the values are #define'd in <linux/usb/ch11.h>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-19 06:49:59 +08:00
temp |= HUB_CHAR_INDV_PORT_OCPM;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
desc->wHubCharacteristics = cpu_to_le16(temp);
retval = u132_read_pcimem(u132, roothub.b, &rh_b);
if (retval)
return retval;
USB 3.0 Hub Changes Update the USB core to deal with USB 3.0 hubs. These hubs have a slightly different hub descriptor than USB 2.0 hubs, with a fixed (rather than variable length) size. Change the USB core's hub descriptor to have a union for the last fields that differ. Change the host controller drivers that access those last fields (DeviceRemovable and PortPowerCtrlMask) to use the union. Translate the new version of the hub port status field into the old version that khubd understands. (Note: we need to fix it to translate the roothub's port status once we stop converting it to USB 2.0 hub status internally.) Add new code to handle link state change status. Send out new control messages that are needed for USB 3.0 hubs, like Set Hub Depth. This patch is a modified version of the original patch submitted by John Youn. It's updated to reflect the removal of the "bitmap" #define, and change the hub descriptor accesses of a couple new host controller drivers. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Cc: Tony Olech <tony.olech@elandigitalsystems.com> Cc: "Robert P. J. Day" <rpjday@crashcourse.ca> Cc: Max Vozeler <mvz@vozeler.com> Cc: Tejun Heo <tj@kernel.org> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: Rodolfo Giometti <giometti@linux.it> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Lothar Wassmann <LW@KARO-electronics.de> Cc: Olav Kongas <ok@artecdesign.ee> Cc: Martin Fuzzey <mfuzzey@gmail.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <dbrownell@users.sourceforge.net>
2001-09-17 15:00:00 +08:00
memset(desc->u.hs.DeviceRemovable, 0xff,
sizeof(desc->u.hs.DeviceRemovable));
desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (u132->num_ports > 7) {
USB 3.0 Hub Changes Update the USB core to deal with USB 3.0 hubs. These hubs have a slightly different hub descriptor than USB 2.0 hubs, with a fixed (rather than variable length) size. Change the USB core's hub descriptor to have a union for the last fields that differ. Change the host controller drivers that access those last fields (DeviceRemovable and PortPowerCtrlMask) to use the union. Translate the new version of the hub port status field into the old version that khubd understands. (Note: we need to fix it to translate the roothub's port status once we stop converting it to USB 2.0 hub status internally.) Add new code to handle link state change status. Send out new control messages that are needed for USB 3.0 hubs, like Set Hub Depth. This patch is a modified version of the original patch submitted by John Youn. It's updated to reflect the removal of the "bitmap" #define, and change the hub descriptor accesses of a couple new host controller drivers. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Cc: Tony Olech <tony.olech@elandigitalsystems.com> Cc: "Robert P. J. Day" <rpjday@crashcourse.ca> Cc: Max Vozeler <mvz@vozeler.com> Cc: Tejun Heo <tj@kernel.org> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: Rodolfo Giometti <giometti@linux.it> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Lothar Wassmann <LW@KARO-electronics.de> Cc: Olav Kongas <ok@artecdesign.ee> Cc: Martin Fuzzey <mfuzzey@gmail.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <dbrownell@users.sourceforge.net>
2001-09-17 15:00:00 +08:00
desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8;
desc->u.hs.DeviceRemovable[2] = 0xff;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
} else
USB 3.0 Hub Changes Update the USB core to deal with USB 3.0 hubs. These hubs have a slightly different hub descriptor than USB 2.0 hubs, with a fixed (rather than variable length) size. Change the USB core's hub descriptor to have a union for the last fields that differ. Change the host controller drivers that access those last fields (DeviceRemovable and PortPowerCtrlMask) to use the union. Translate the new version of the hub port status field into the old version that khubd understands. (Note: we need to fix it to translate the roothub's port status once we stop converting it to USB 2.0 hub status internally.) Add new code to handle link state change status. Send out new control messages that are needed for USB 3.0 hubs, like Set Hub Depth. This patch is a modified version of the original patch submitted by John Youn. It's updated to reflect the removal of the "bitmap" #define, and change the hub descriptor accesses of a couple new host controller drivers. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Cc: Tony Olech <tony.olech@elandigitalsystems.com> Cc: "Robert P. J. Day" <rpjday@crashcourse.ca> Cc: Max Vozeler <mvz@vozeler.com> Cc: Tejun Heo <tj@kernel.org> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: Rodolfo Giometti <giometti@linux.it> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Lothar Wassmann <LW@KARO-electronics.de> Cc: Olav Kongas <ok@artecdesign.ee> Cc: Martin Fuzzey <mfuzzey@gmail.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <dbrownell@users.sourceforge.net>
2001-09-17 15:00:00 +08:00
desc->u.hs.DeviceRemovable[1] = 0xff;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_roothub_status(struct u132 *u132, __le32 *desc)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u32 rh_status = -1;
int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status);
*desc = cpu_to_le32(rh_status);
return ret_status;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (wIndex == 0 || wIndex > u132->num_ports) {
return -EINVAL;
} else {
int port = wIndex - 1;
u32 rh_portstatus = -1;
int ret_portstatus = u132_read_pcimem(u132,
roothub.portstatus[port], &rh_portstatus);
*desc = cpu_to_le32(rh_portstatus);
if (*(u16 *) (desc + 2)) {
dev_info(&u132->platform_dev->dev, "Port %d Status Chan"
"ge = %08X\n", port, *desc);
}
return ret_portstatus;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
/* this timer value might be vendor-specific ... */
#define PORT_RESET_HW_MSEC 10
#define PORT_RESET_MSEC 10
/* wrap-aware logic morphed from <linux/jiffies.h> */
#define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
static int u132_roothub_portreset(struct u132 *u132, int port_index)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int retval;
u32 fmnumber;
u16 now;
u16 reset_done;
retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
if (retval)
return retval;
now = fmnumber;
reset_done = now + PORT_RESET_MSEC;
do {
u32 portstat;
do {
retval = u132_read_pcimem(u132,
roothub.portstatus[port_index], &portstat);
if (retval)
return retval;
if (RH_PS_PRS & portstat)
continue;
else
break;
} while (tick_before(now, reset_done));
if (RH_PS_PRS & portstat)
return -ENODEV;
if (RH_PS_CCS & portstat) {
if (RH_PS_PRSC & portstat) {
retval = u132_write_pcimem(u132,
roothub.portstatus[port_index],
RH_PS_PRSC);
if (retval)
return retval;
}
} else
break; /* start the next reset,
sleep till it's probably done */
retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
RH_PS_PRS);
if (retval)
return retval;
msleep(PORT_RESET_HW_MSEC);
retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
if (retval)
return retval;
now = fmnumber;
} while (tick_before(now, reset_done));
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u16 wIndex)
{
if (wIndex == 0 || wIndex > u132->num_ports) {
return -EINVAL;
} else {
int port_index = wIndex - 1;
struct u132_port *port = &u132->port[port_index];
port->Status &= ~(1 << wValue);
switch (wValue) {
case USB_PORT_FEAT_SUSPEND:
usb: host: u132-hcd: Simplify return statement Replace redundant variable use in return statement. Signed-off-by: Saurabh Karajgaonkar <skarajga@visteon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04 22:03:45 +08:00
return u132_write_pcimem(u132,
roothub.portstatus[port_index], RH_PS_PSS);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
case USB_PORT_FEAT_POWER:
usb: host: u132-hcd: Simplify return statement Replace redundant variable use in return statement. Signed-off-by: Saurabh Karajgaonkar <skarajga@visteon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04 22:03:45 +08:00
return u132_write_pcimem(u132,
roothub.portstatus[port_index], RH_PS_PPS);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
case USB_PORT_FEAT_RESET:
usb: host: u132-hcd: Simplify return statement Replace redundant variable use in return statement. Signed-off-by: Saurabh Karajgaonkar <skarajga@visteon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04 22:03:45 +08:00
return u132_roothub_portreset(u132, port_index);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
default:
return -EPIPE;
}
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u16 wIndex)
{
if (wIndex == 0 || wIndex > u132->num_ports) {
return -EINVAL;
} else {
int port_index = wIndex - 1;
u32 temp;
struct u132_port *port = &u132->port[port_index];
port->Status &= ~(1 << wValue);
switch (wValue) {
case USB_PORT_FEAT_ENABLE:
temp = RH_PS_CCS;
break;
case USB_PORT_FEAT_C_ENABLE:
temp = RH_PS_PESC;
break;
case USB_PORT_FEAT_SUSPEND:
temp = RH_PS_POCI;
if ((u132->hc_control & OHCI_CTRL_HCFS)
!= OHCI_USB_OPER) {
dev_err(&u132->platform_dev->dev, "TODO resume_"
"root_hub\n");
}
break;
case USB_PORT_FEAT_C_SUSPEND:
temp = RH_PS_PSSC;
break;
case USB_PORT_FEAT_POWER:
temp = RH_PS_LSDA;
break;
case USB_PORT_FEAT_C_CONNECTION:
temp = RH_PS_CSC;
break;
case USB_PORT_FEAT_C_OVER_CURRENT:
temp = RH_PS_OCIC;
break;
case USB_PORT_FEAT_C_RESET:
temp = RH_PS_PRSC;
break;
default:
return -EPIPE;
}
usb: host: u132-hcd: Simplify return statement Replace redundant variable use in return statement. Signed-off-by: Saurabh Karajgaonkar <skarajga@visteon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04 22:03:45 +08:00
return u132_write_pcimem(u132, roothub.portstatus[port_index],
temp);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
/* the virtual root hub timer IRQ checks for hub status*/
static int u132_hub_status_data(struct usb_hcd *hcd, char *buf)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov"
"ed %d\n", hcd, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
"ed\n", hcd);
return -ESHUTDOWN;
} else {
int i, changed = 0, length = 1;
if (u132->flags & OHCI_QUIRK_AMD756) {
if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) {
dev_err(&u132->platform_dev->dev, "bogus NDP, r"
"ereads as NDP=%d\n",
u132->hc_roothub_a & RH_A_NDP);
goto done;
}
}
if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC))
buf[0] = changed = 1;
else
buf[0] = 0;
if (u132->num_ports > 7) {
buf[1] = 0;
length++;
}
for (i = 0; i < u132->num_ports; i++) {
if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC |
RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC |
RH_PS_PRSC)) {
changed = 1;
if (i < 7)
buf[0] |= 1 << (i + 1);
else
buf[1] |= 1 << (i - 7);
continue;
}
if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS))
continue;
if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS))
continue;
}
done:
return changed ? length : 0;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u16 wIndex, char *buf, u16 wLength)
{
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
return -ESHUTDOWN;
} else {
int retval = 0;
mutex_lock(&u132->sw_lock);
switch (typeReq) {
case ClearHubFeature:
switch (wValue) {
case C_HUB_OVER_CURRENT:
case C_HUB_LOCAL_POWER:
break;
default:
goto stall;
}
break;
case SetHubFeature:
switch (wValue) {
case C_HUB_OVER_CURRENT:
case C_HUB_LOCAL_POWER:
break;
default:
goto stall;
}
break;
case ClearPortFeature:{
retval = u132_roothub_clearportfeature(u132,
wValue, wIndex);
if (retval)
goto error;
break;
}
case GetHubDescriptor:{
retval = u132_roothub_descriptor(u132,
(struct usb_hub_descriptor *)buf);
if (retval)
goto error;
break;
}
case GetHubStatus:{
retval = u132_roothub_status(u132,
(__le32 *) buf);
if (retval)
goto error;
break;
}
case GetPortStatus:{
retval = u132_roothub_portstatus(u132,
(__le32 *) buf, wIndex);
if (retval)
goto error;
break;
}
case SetPortFeature:{
retval = u132_roothub_setportfeature(u132,
wValue, wIndex);
if (retval)
goto error;
break;
}
default:
goto stall;
error:
u132_disable(u132);
u132->going = 1;
break;
stall:
retval = -EPIPE;
break;
}
mutex_unlock(&u132->sw_lock);
return retval;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
return -ESHUTDOWN;
} else
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
#ifdef CONFIG_PM
static int u132_bus_suspend(struct usb_hcd *hcd)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
return -ESHUTDOWN;
} else
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_bus_resume(struct usb_hcd *hcd)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
return -ESHUTDOWN;
} else
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
#else
#define u132_bus_suspend NULL
#define u132_bus_resume NULL
#endif
static struct hc_driver u132_hc_driver = {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
.description = hcd_name,
.hcd_priv_size = sizeof(struct u132),
.irq = NULL,
.flags = HCD_USB11 | HCD_MEMORY,
.reset = u132_hcd_reset,
.start = u132_hcd_start,
.stop = u132_hcd_stop,
.urb_enqueue = u132_urb_enqueue,
.urb_dequeue = u132_urb_dequeue,
.endpoint_disable = u132_endpoint_disable,
.get_frame_number = u132_get_frame,
.hub_status_data = u132_hub_status_data,
.hub_control = u132_hub_control,
.bus_suspend = u132_bus_suspend,
.bus_resume = u132_bus_resume,
.start_port_reset = u132_start_port_reset,
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
/*
* This function may be called by the USB core whilst the "usb_all_devices_rwsem"
* is held for writing, thus this module must not call usb_remove_hcd()
* synchronously - but instead should immediately stop activity to the
Fix misc .c/.h comment typos Fix various .c/.h typos in comments (no code changes). Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-11-30 12:24:39 +08:00
* device and asynchronously call usb_remove_hcd()
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
*/
usb: remove use of __devexit CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-20 02:26:20 +08:00
static int u132_remove(struct platform_device *pdev)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_hcd *hcd = platform_get_drvdata(pdev);
if (hcd) {
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going++ > 1) {
dev_err(&u132->platform_dev->dev, "already being remove"
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card ELAN's U132 is a USB to CardBus OHCI controller adapter, designed specifically for CardBus 3G data cards to function in machines without a CardBus slot. The "ftdi-elan" module is a USB client driver, that detects a supported CardBus OHCI controller plugged into the U132 adapter and thereafter provides the conduit for for access by the "u132-hcd" module. The "u132-hcd" module is a (cut-down OHCI) host controller that supports a single OHCI function of the CardBus card inserted into the U132 adapter. The problem with the initial implementation is that when the CardBus card inserted into the U132 adapter has multiple functions (and a CardBus card can support up to 4 functions), it was the first function that was arbitrarily choosen. The first batch of 3G cards tested, like the Merlin Qualcomm V620, have two functions each supporting a seperate USB OHCI host controller, of which it was that first function that is wired up to the 3G modem. Then along comes the Vodafone Mobile Connect 3G/GPRS data card, aka "Option GT 3G Quad" as printed on it's rear or "Option N.V. GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it has the meaningful functionality in the second CardBus function. That presents a problem because it was the "ftdi-elan" module alone that knows how to communicate to the embedded CardBus slot and the "u132-hcd" module alone that knows how to access the pcmcia configuration and CardBus accessible memory space. And of course, the information about attached (internally hardwired) devices is contained within USB configuration embedded somewhere within the CardBus card. If only the "u132-hcd" module probe() interface could return a result code that propagated back to the instigating function platform_device_register() then the "ftdi-elan" module could try an alternative CardBus function. However in spite of the recent changes to the drivers/base/ routines that moved device_attach() from bus_add_device() to bus_attach_device() both of those routines lose the "failed to attach" 0 result code and thus the calling routine, namely device_add() is incapable of propaging the "failed to attach" condition back to platform_device_add() and consequently back to the caller of platform_device_register() Experiments show that patching bus_attach_device() to return ENODEV fails with the kernel locking up very early during boot. But, however, if the patch is restricted to calls from platform_device_add() then it does seem to work. Unfortunately, until the kernel's drivers/base is properly modified to propagate -ENODEV back to the caller of platform_device_register(), it is necessary to "fix" the "ftdi-elan" module by importing knowledge from the "u132-hcd" module. This is the reason for the duplicated functionality introduced in this patch. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 21:16:22 +08:00
"d\n");
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return -ENODEV;
} else {
int rings = MAX_U132_RINGS;
int endps = MAX_U132_ENDPS;
dev_err(&u132->platform_dev->dev, "removing device u132"
USB: u132-hcd/ftdi-elan: add support for Option GT 3G Quad card ELAN's U132 is a USB to CardBus OHCI controller adapter, designed specifically for CardBus 3G data cards to function in machines without a CardBus slot. The "ftdi-elan" module is a USB client driver, that detects a supported CardBus OHCI controller plugged into the U132 adapter and thereafter provides the conduit for for access by the "u132-hcd" module. The "u132-hcd" module is a (cut-down OHCI) host controller that supports a single OHCI function of the CardBus card inserted into the U132 adapter. The problem with the initial implementation is that when the CardBus card inserted into the U132 adapter has multiple functions (and a CardBus card can support up to 4 functions), it was the first function that was arbitrarily choosen. The first batch of 3G cards tested, like the Merlin Qualcomm V620, have two functions each supporting a seperate USB OHCI host controller, of which it was that first function that is wired up to the 3G modem. Then along comes the Vodafone Mobile Connect 3G/GPRS data card, aka "Option GT 3G Quad" as printed on it's rear or "Option N.V. GlobeTrotter Fusion Quad Lite" as read with "lspci -v". And it has the meaningful functionality in the second CardBus function. That presents a problem because it was the "ftdi-elan" module alone that knows how to communicate to the embedded CardBus slot and the "u132-hcd" module alone that knows how to access the pcmcia configuration and CardBus accessible memory space. And of course, the information about attached (internally hardwired) devices is contained within USB configuration embedded somewhere within the CardBus card. If only the "u132-hcd" module probe() interface could return a result code that propagated back to the instigating function platform_device_register() then the "ftdi-elan" module could try an alternative CardBus function. However in spite of the recent changes to the drivers/base/ routines that moved device_attach() from bus_add_device() to bus_attach_device() both of those routines lose the "failed to attach" 0 result code and thus the calling routine, namely device_add() is incapable of propaging the "failed to attach" condition back to platform_device_add() and consequently back to the caller of platform_device_register() Experiments show that patching bus_attach_device() to return ENODEV fails with the kernel locking up very early during boot. But, however, if the patch is restricted to calls from platform_device_add() then it does seem to work. Unfortunately, until the kernel's drivers/base is properly modified to propagate -ENODEV back to the caller of platform_device_register(), it is necessary to "fix" the "ftdi-elan" module by importing knowledge from the "u132-hcd" module. This is the reason for the duplicated functionality introduced in this patch. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-06 21:16:22 +08:00
".%d\n", u132->sequence_num);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
msleep(100);
mutex_lock(&u132->sw_lock);
u132_monitor_cancel_work(u132);
while (rings-- > 0) {
struct u132_ring *ring = &u132->ring[rings];
u132_ring_cancel_work(u132, ring);
} while (endps-- > 0) {
struct u132_endp *endp = u132->endp[endps];
if (endp)
u132_endp_cancel_work(u132, endp);
}
u132->going += 1;
printk(KERN_INFO "removing device u132.%d\n",
u132->sequence_num);
mutex_unlock(&u132->sw_lock);
usb_remove_hcd(hcd);
u132_u132_put_kref(u132);
return 0;
}
} else
return 0;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static void u132_initialise(struct u132 *u132, struct platform_device *pdev)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int rings = MAX_U132_RINGS;
int ports = MAX_U132_PORTS;
int addrs = MAX_U132_ADDRS;
int udevs = MAX_U132_UDEVS;
int endps = MAX_U132_ENDPS;
USB: host: use dev_get_platdata() Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-30 18:59:40 +08:00
u132->board = dev_get_platdata(&pdev->dev);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132->platform_dev = pdev;
u132->power = 0;
u132->reset = 0;
mutex_init(&u132->sw_lock);
usb: u132-hcd driver: semaphore to mutex Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:02 +08:00
mutex_init(&u132->scheduler_lock);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
while (rings-- > 0) {
struct u132_ring *ring = &u132->ring[rings];
ring->u132 = u132;
ring->number = rings + 1;
ring->length = 0;
ring->curr_endp = NULL;
INIT_DELAYED_WORK(&ring->scheduler,
WorkStruct: make allyesconfig Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 22:57:56 +08:00
u132_hcd_ring_work_scheduler);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
}
mutex_lock(&u132->sw_lock);
INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work);
while (ports-- > 0) {
struct u132_port *port = &u132->port[ports];
port->u132 = u132;
port->reset = 0;
port->enable = 0;
port->power = 0;
port->Status = 0;
}
while (addrs-- > 0) {
struct u132_addr *addr = &u132->addr[addrs];
addr->address = 0;
}
while (udevs-- > 0) {
struct u132_udev *udev = &u132->udev[udevs];
int i = ARRAY_SIZE(udev->endp_number_in);
int o = ARRAY_SIZE(udev->endp_number_out);
udev->usb_device = NULL;
udev->udev_number = 0;
udev->usb_addr = 0;
udev->portnumber = 0;
while (i-- > 0)
udev->endp_number_in[i] = 0;
while (o-- > 0)
udev->endp_number_out[o] = 0;
}
while (endps-- > 0)
u132->endp[endps] = NULL;
mutex_unlock(&u132->sw_lock);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
usb: remove use of __devinit CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Geoff Levand <geoff@infradead.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Olav Kongas <ok@artecdesign.ee> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-20 02:21:48 +08:00
static int u132_probe(struct platform_device *pdev)
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_hcd *hcd;
int retval;
u32 control;
u32 rh_a = -1;
u32 num_ports;
msleep(100);
if (u132_exiting > 0)
return -ENODEV;
retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE);
if (retval)
return retval;
retval = ftdi_read_pcimem(pdev, control, &control);
if (retval)
return retval;
retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a);
if (retval)
return retval;
num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */
if (pdev->dev.dma_mask)
return -EINVAL;
USB: usb dev_name() instead of dev->bus_id The bus_id field is going away, use the dev_name() function instead. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-05-02 12:02:41 +08:00
hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev));
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
if (!hcd) {
printk(KERN_ERR "failed to create the usb hcd struct for U132\n"
);
ftdi_elan_gone_away(pdev);
return -ENOMEM;
} else {
struct u132 *u132 = hcd_to_u132(hcd);
usb: u132-hcd.c: fix shadows sparse warning Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-29 22:04:56 +08:00
retval = 0;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
hcd->rsrc_start = 0;
mutex_lock(&u132_module_lock);
list_add_tail(&u132->u132_list, &u132_static_list);
u132->sequence_num = ++u132_instances;
mutex_unlock(&u132_module_lock);
u132_u132_init_kref(u132);
u132_initialise(u132, pdev);
hcd->product_desc = "ELAN U132 Host Controller";
retval = usb_add_hcd(hcd, 0, 0);
if (retval != 0) {
dev_err(&u132->platform_dev->dev, "init error %d\n",
retval);
u132_u132_put_kref(u132);
return retval;
} else {
usb: hcd: move controller wakeup setting initialization to individual driver Individual controller driver has different requirement for wakeup setting, so move it from core to itself. In order to align with current etting the default wakeup setting is enabled (except for chipidea host). Pass compile test with below commands: make O=outout/all allmodconfig make -j$CPU_NUM O=outout/all drivers/usb Signed-off-by: Peter Chen <peter.chen@freescale.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-05 10:46:02 +08:00
device_wakeup_enable(hcd->self.controller);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
u132_monitor_queue_work(u132, 100);
return 0;
}
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
#ifdef CONFIG_PM
USB: remove CONFIG_USB_SUSPEND option This patch (as1675) removes the CONFIG_USB_SUSPEND option, essentially replacing it everywhere with CONFIG_PM_RUNTIME (except for one place in hub.c, where it is replaced with CONFIG_PM because the code needs to be used in both runtime and system PM). The net result is code shrinkage and simplification. There's very little point in keeping CONFIG_USB_SUSPEND because almost everybody enables it. The few that don't will find that the usbcore module has gotten somewhat bigger and they will have to take active measures if they want to prevent hubs from being runtime suspended. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-28 04:14:46 +08:00
/*
* for this device there's no useful distinction between the controller
USB / PM: Drop CONFIG_PM_RUNTIME from the USB core After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so quite a few depend on CONFIG_PM (or even dropped in some cases). Replace CONFIG_PM_RUNTIME with CONFIG_PM in the USB core code and documentation. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-30 06:47:05 +08:00
* and its root hub.
USB: remove CONFIG_USB_SUSPEND option This patch (as1675) removes the CONFIG_USB_SUSPEND option, essentially replacing it everywhere with CONFIG_PM_RUNTIME (except for one place in hub.c, where it is replaced with CONFIG_PM because the code needs to be used in both runtime and system PM). The net result is code shrinkage and simplification. There's very little point in keeping CONFIG_USB_SUSPEND because almost everybody enables it. The few that don't will find that the usbcore module has gotten somewhat bigger and they will have to take active measures if they want to prevent hubs from being runtime suspended. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-28 04:14:46 +08:00
*/
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
static int u132_suspend(struct platform_device *pdev, pm_message_t state)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
return -ESHUTDOWN;
} else {
Fix u132-hcd.c compile error This fixes the following compile error caused by commit 3a2d5b700132f35401f1d9e22fe3c2cab02c2549 ("PM: Introduce PM_EVENT_HIBERNATE callback state") CC [M] drivers/usb/host/u132-hcd.o drivers/usb/host/u132-hcd.c: In function ‘u132_suspend’: drivers/usb/host/u132-hcd.c:3224: error: expected expression before ‘int’ drivers/usb/host/u132-hcd.c:3225: error: ‘ports’ undeclared (first use in this function) ... Signed-off-by: Mirco Tischler <mt-ml@gmx.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-24 12:16:39 +08:00
int retval = 0, ports;
PM: Introduce PM_EVENT_HIBERNATE callback state During the last step of hibernation in the "platform" mode (with the help of ACPI) we use the suspend code, including the devices' ->suspend() methods, to prepare the system for entering the ACPI S4 system sleep state. But at least for some devices the operations performed by the ->suspend() callback in that case must be different from its operations during regular suspend. For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and pass it to the device drivers' ->suspend() methods during the last phase of hibernation, so that they can distinguish this case and handle it as appropriate. Modify the drivers that handle PM_EVENT_SUSPEND in a special way and need to handle PM_EVENT_HIBERNATE in the same way. These changes are necessary to fix a hibernation regression related to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Tested-by: Jeff Chua <jeff.chua.linux@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-24 02:13:25 +08:00
switch (state.event) {
case PM_EVENT_FREEZE:
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
retval = u132_bus_suspend(hcd);
PM: Introduce PM_EVENT_HIBERNATE callback state During the last step of hibernation in the "platform" mode (with the help of ACPI) we use the suspend code, including the devices' ->suspend() methods, to prepare the system for entering the ACPI S4 system sleep state. But at least for some devices the operations performed by the ->suspend() callback in that case must be different from its operations during regular suspend. For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and pass it to the device drivers' ->suspend() methods during the last phase of hibernation, so that they can distinguish this case and handle it as appropriate. Modify the drivers that handle PM_EVENT_SUSPEND in a special way and need to handle PM_EVENT_HIBERNATE in the same way. These changes are necessary to fix a hibernation regression related to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Tested-by: Jeff Chua <jeff.chua.linux@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-24 02:13:25 +08:00
break;
case PM_EVENT_SUSPEND:
case PM_EVENT_HIBERNATE:
Fix u132-hcd.c compile error This fixes the following compile error caused by commit 3a2d5b700132f35401f1d9e22fe3c2cab02c2549 ("PM: Introduce PM_EVENT_HIBERNATE callback state") CC [M] drivers/usb/host/u132-hcd.o drivers/usb/host/u132-hcd.c: In function ‘u132_suspend’: drivers/usb/host/u132-hcd.c:3224: error: expected expression before ‘int’ drivers/usb/host/u132-hcd.c:3225: error: ‘ports’ undeclared (first use in this function) ... Signed-off-by: Mirco Tischler <mt-ml@gmx.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-24 12:16:39 +08:00
ports = MAX_U132_PORTS;
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
while (ports-- > 0) {
port_power(u132, ports, 0);
}
PM: Introduce PM_EVENT_HIBERNATE callback state During the last step of hibernation in the "platform" mode (with the help of ACPI) we use the suspend code, including the devices' ->suspend() methods, to prepare the system for entering the ACPI S4 system sleep state. But at least for some devices the operations performed by the ->suspend() callback in that case must be different from its operations during regular suspend. For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and pass it to the device drivers' ->suspend() methods during the last phase of hibernation, so that they can distinguish this case and handle it as appropriate. Modify the drivers that handle PM_EVENT_SUSPEND in a special way and need to handle PM_EVENT_HIBERNATE in the same way. These changes are necessary to fix a hibernation regression related to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Tested-by: Jeff Chua <jeff.chua.linux@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-24 02:13:25 +08:00
break;
}
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
return retval;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
static int u132_resume(struct platform_device *pdev)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct u132 *u132 = hcd_to_u132(hcd);
if (u132->going > 1) {
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
, u132->going);
return -ENODEV;
} else if (u132->going > 0) {
dev_err(&u132->platform_dev->dev, "device is being removed\n");
return -ESHUTDOWN;
} else {
int retval = 0;
USB: remove dev->power.power_state power.power_state is scheduled for removal. This patch (as1053) removes all uses of that field from drivers/usb. Almost all of them were write-only, the most significant exceptions being sl811-hcd.c and u132-hcd.c. Part of this patch was written by Pavel Machek. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <david-b@pacbell.net> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-07 06:00:58 +08:00
if (!u132->port[0].power) {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int ports = MAX_U132_PORTS;
while (ports-- > 0) {
port_power(u132, ports, 1);
}
retval = 0;
} else {
retval = u132_bus_resume(hcd);
}
return retval;
}
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
#else
#define u132_suspend NULL
#define u132_resume NULL
#endif
/*
Fix misc .c/.h comment typos Fix various .c/.h typos in comments (no code changes). Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-11-30 12:24:39 +08:00
* this driver is loaded explicitly by ftdi_u132
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
*
* the platform_driver struct is static because it is per type of module
*/
static struct platform_driver u132_platform_driver = {
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
.probe = u132_probe,
usb: remove use of __devexit_p CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-20 02:21:08 +08:00
.remove = u132_remove,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
.suspend = u132_suspend,
.resume = u132_resume,
.driver = {
usb: host: Remove superfluous name casts device_driver.name is "const char *" Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13 03:07:25 +08:00
.name = hcd_name,
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
},
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
};
static int __init u132_hcd_init(void)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
int retval;
INIT_LIST_HEAD(&u132_static_list);
u132_instances = 0;
u132_exiting = 0;
mutex_init(&u132_module_lock);
if (usb_disabled())
return -ENODEV;
usb: u132-hcd: Drop __TIME__ usage The kernel already prints its build timestamp during boot, no need to repeat it in random drivers and produce different object files each time. Cc: Tony Olech <tony.olech@elandigitalsystems.com> Cc: linux-usb@vger.kernel.org Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-05 22:59:11 +08:00
printk(KERN_INFO "driver %s\n", hcd_name);
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
workqueue = create_singlethread_workqueue("u132");
retval = platform_driver_register(&u132_platform_driver);
return retval;
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
module_init(u132_hcd_init);
static void __exit u132_hcd_exit(void)
{
usb: u132-hcd driver style clean up I was converting a semaphore in this file to a mutex when I noticed that this file has some fairly rampant style problems. Practically every line has spaces instead of tabs .. Once I cleared that up, checkpatch.pl showed a number of other problem.. I think this file might be a good one to review for new style checks that could be added.. Below are the only two remaining which I didn't remove. #5083: FILE: drivers/usb/host/u132-hcd.c:2907: + error: WARNING: labels should not be indented #5087: FILE: drivers/usb/host/u132-hcd.c:2911: + stall: These labels are actually inside a switch statement, and they are right under "default:". "default:" appears to be exempt and these other label should be too, or default shouldn't be exempt. I also deleted a few lines due to single statements inside { } , if (is_error()) { return; } becomes, if (is_error()) return; with one line deleted. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-23 15:00:01 +08:00
struct u132 *u132;
struct u132 *temp;
mutex_lock(&u132_module_lock);
u132_exiting += 1;
mutex_unlock(&u132_module_lock);
list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) {
platform_device_unregister(u132->platform_dev);
}
platform_driver_unregister(&u132_platform_driver);
printk(KERN_INFO "u132-hcd driver deregistered\n");
wait_event(u132_hcd_wait, u132_instances == 0);
flush_workqueue(workqueue);
destroy_workqueue(workqueue);
USB: u132-hcd: host controller driver for ELAN U132 adapter This "u132-hcd" module is one half of the "driver" for ELAN's U132 which is a USB to CardBus OHCI controller adapter. This module needs the "ftdi-elan" module in order to communicate to CardBus OHCI controller inserted into the U132 adapter. When the "ftdi-elan" module detects a supported CardBus OHCI controller in the U132 adapter it loads this "u132-hcd" module. Upon a successful device probe() the single workqueue is started up which does all the processing of commands from the USB core that implement the host controller. The workqueue maintains the urb queues and issues commands via the functions exported by the "ftdi-elan" module. Each such command will result in a callback. Note that the "ftdi-elan" module is a USB client driver. Note that this "u132-hcd" module is a (cut-down OHCI) host controller. Thus we have a topology with the parent of a host controller being a USB client! This really stresses the USB subsystem semaphore/mutex handling in the module removal. Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-13 18:27:35 +08:00
}
module_exit(u132_hcd_exit);
MODULE_LICENSE("GPL");
usb host: fix platform driver hotplug/coldplug Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable USB HCDs, to allow re-enable auto loading. [dbrownell@users.sourceforge.net: more drivers; registration fixes] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-11 12:29:22 +08:00
MODULE_ALIAS("platform:u132_hcd");