Commit Graph

4092 Commits

Author SHA1 Message Date
Folkert van Heusden b34efeeab8 USB: serial: FTDI with product code FB80 and vendor id 0403
It seems an USB device with vendor id 0403 and product code FB80 has an
FTDI serial io chip as well: http://ftdichip.com/Drivers/D2XX.htm
This device in fact is a true random generantor by comsci:
http://comscire.com/Products/R2000KU/
So the following patch should add support for this device if I am
correct. Not tested as I do not own this device (I would like support in
the kernel so that my entropybroker application (which distributes
entrop data (random values) between servers and clients)).


From: Folkert van Heusden <folkert@vanheusden.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:39 -07:00
Jason Wessel 6e40612101 USB: console: Fix regression in usb console on kernel boot
The commit 335f8514f2 introduced a
regression which stopped usb consoles from working correctly as a
kernel boot console as well as interactive login device.

The addition of the serial_close() which in turn calls
tty_port_close_start() will change the reference count of port.count
and warn about it.  The usb console code had previously incremented
the port.count to indicate it was making use of the device as a
console and the forced change causes a double open on the usb device
which leads to a non obvious kernel oops later on when the tty is
freed.

To fix the problem instead make use of port->console to track if the
port is in fact an active console port to avoid double initialization
of the usb serial device.  The port.count is incremented and
decremented only with in the scope of usb_console_setup() for the
purpose of the low level driver initialization.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:39 -07:00
Frans Pop bf7fbb022f USB: add missing class descriptions used in usb/devices file
Added descriptions (for WIRELESS_CONTROLLER and MISC) were taken from
the usb-devices script now included in usbutils.

Also sort the classes in the same order as in include/linux/usb/ch9.h
for easier comparison for future updates.

Signed-off-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:39 -07:00
Oliver Neukum d794a02111 USB: fix memleak in usbfs
This patch fixes a memory leak in devio.c::processcompl

If writing to user space fails the packet must be discarded, as it
already has been removed from the queue of completed packets.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:39 -07:00
Alan Stern ba516de332 USB: EHCI: check for STALL before other errors
This patch (as1257) revises the way ehci-hcd detects STALLs.  The
logic is a little peculiar because there's no hardware status bit
specifically meant to indicate a STALL.  You just have to guess that a
STALL was received if the BABBLE bit (which is fatal) isn't set and
the transfer stopped before all its retries were used up.

The existing code doesn't do this properly, because it tests for MMF
(Missed MicroFrame) and DBE (Data Buffer Error) before testing the
retry counter.  Thus, if a transaction gets either MMF or DBE the
corresponding flag is set and the transaction is retried.  If the
second attempt receives a STALL then -EPIPE is the correct return
value.  But the existing code would see the MMF or DBE flag instead
and return -EPROTO, -ENOSR, or -ECOMM.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:39 -07:00
Alan Stern 914b701280 USB: EHCI: use the new clear_tt_buffer interface
This patch (as1256) changes ehci-hcd and all the other drivers in the
EHCI family to make use of the new clear_tt_buffer callbacks.  When a
Clear-TT-Buffer request is in progress for a QH, the QH is not allowed
to be linked into the async schedule until the request is finished.
At that time, if there are any URBs queued for the QH, it is linked
into the async schedule.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:39 -07:00
Alan Stern cb88a1b887 USB: fix the clear_tt_buffer interface
This patch (as1255) updates the interface for calling
usb_hub_clear_tt_buffer().  Even the name of the function is changed!

When an async URB (i.e., Control or Bulk) going through a high-speed
hub to a non-high-speed device is cancelled or fails, the hub's
Transaction Translator buffer may be left busy still trying to
complete the transaction.  The buffer has to be cleared; that's what
usb_hub_clear_tt_buffer() does.

It isn't safe to send any more URBs to the same endpoint until the TT
buffer is fully clear.  Therefore the HCD needs to be told when the
Clear-TT-Buffer request has finished.  This patch adds a callback
method to struct hc_driver for that purpose, and makes the hub driver
invoke the callback at the proper time.

The patch also changes a couple of names; "hub_tt_kevent" and
"tt.kevent" now look rather antiquated.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:38 -07:00
Oliver Neukum 87ea8c8879 USB: fix uninitialised variable in ti_do_download
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:38 -07:00
Dan Williams 71f9f6cc9e USB: option: add Novatel Ovation MC760
Used by Virgin Mobile with the Broadband2Go service, for example.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:38 -07:00
Arseniy Lartsev 5186ffee23 USB: cdc-acm: work around some broken devices
This patch introduces a work around for cdc-acm devices which are
low speed contrary to the specification, which requires bulk endpoints
which are banned in low speed and converted by usbcore to virtual
interrupt endpoints if they are used nevertheless.

Signed-off-by: Arseniy Lartsev <ars3n@yandex.ru>
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
David Brownell 89368d3d11 USB: musb: silence "suspend as a_wait_vrise is_active" msgs
Get rid of some obnoxious and inappropriate messaging, mostly on
DaVinci, when usbcore tries to autosuspend a root hub if just a
mini/micro-A connector is connected.  Symptom: endless stream of
messages reading like:

 musb_bus_suspend 2221: trying to suspend as a_wait_vrise is_active=1

Improve that musb bus suspend primitive a bit.  Take advantage of
this call to update the OTG state machine if appropriate, moving
the device out of the A_WAIT_VRISE state.  There's basically no
timer for that state transition just now, except with tusb6010;
that can make trouble.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
David Brownell 6d84599b3c USB: gadget: pxa25x compiler warning fix
Fix config-dependent compiler warning:

  CC      drivers/usb/gadget/pxa25x_udc.o
drivers/usb/gadget/pxa25x_udc.c: In function 'pxa25x_udc_irq':
drivers/usb/gadget/pxa25x_udc.c:1806: warning: array subscript is above array bounds

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Philipp Zabel 56a075dcd6 USB: gadget: pxa25x uses gpio_is_valid
Use gpio_is_valid instead of assuming that every GPIO
number != 0 is valid while 0 is not.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Kevin Hilman 30899ca7f2 USB: musb: davinci dm6446evm GPIO renumbering
Numbering for GPIOs on the pcf857x chips on the dm644x EVM board
changed when DaVinci chips with more GPIOs were supported.  Update
the GPIO number used for nVBUS_DRV.

Longer term, we need a better abstraction of board-specific setup in
this code so we're not hard-coding board specific GPIOs into the
driver, but for now this at least gets it back to working with
mainline davinci core code.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
David Brownell d163ef2483 USB: musb: davinci dm355 updates (remainder)
Finish merging updates for DM355 chips into musb/davinci.c now
that its support is in mainline:  kick in new DRVVBUS controls.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Qiuping Chen 6bc2146e2b USB: gadget: rndis conformance tweak
Support OID_802_3_MAC_OPTIONS in gen_ndis_query_resp() of rndis.c to
make RNDIS gadget pass 1c_SetMulticast subtest in Microsoft NDISTest6:

  http://www.microsoft.com/whdc/DevTools/tools/NDIStest.mspx

The other tests in NDISTest6 are passed.

[ dbrownell@users.sourceforge.net: remove OID_802_3_MAXIMUM_LIST_SIZE
setting ... it was bogus, this code only handles one entry, not 32.
And we don't know what would break if we lied about that... ]

Signed-off-by: Helen Chen <helen.chen@intel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Oliver Neukum ca157c4a51 USB: fix memory leak in usbtmc
If an error is returned kfree must also be called.


Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Arnd Bergmann 45e83889eb USB: buildfix ppc randconfig
We could just make the USB_OHCI_HCD_PPC_OF option implicit
and selected only if at least one of USB_OHCI_HCD_PPC_OF_BE
and USB_OHCI_HCD_PPC_OF_LE are set.

[ dbrownell@users.sourceforge.net: fix patch manglation and dependencies ]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:37 -07:00
Greg Kroah-Hartman 3c43f27bf5 USB: ti_usb_3410_5052: fix duplicate device ids.
commit 1a1fab5137 accidentally added the
device id to both tables in the driver, which causes problems as this is
only a single port device, not a multiple port device.

Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Greg Kroah-Hartman 05cbc2d582 USB: gadget: audio: provide correct device id
The audio gadget driver should use a "Linux" device id, instead
of relying on NetChip's vendor id.  So provide one out of our reserved
namespace.

Cc: Bryan Wu <cooloney@kernel.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Greg Kroah-Hartman 1a74826fa1 Revert "USB: Add Intel Langwell USB OTG Transceiver Drive"
This reverts commit 453f775588.

The driver should not have been accepted as the MSRT code is not
in the main kernel yet, which this depends on.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Hao Wu <hao.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Brad Lu e3a3174519 USB: option.c to support Qisda H21/H20 usb modem
This patch added Qisda(VID) & H21/H20(PID) into to supporting list.
Please help to check this patch,

From: Brad Lu <Brad.Lu@Qisda.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Kai Engert 83dfdaa362 USB: option.c: add Qualcomm/Option iCON 210 modem
Add modem portion of USB device labeled:
Model iCON 210, Qualcomm 3G HSDPA, designed in EU by Option

Device starts in usb-storage mode (1e0e:f000) and requires the use of a tool
like usb_modeswitch to switch it to modem mode (1e0e:9000).

Signed-off-by: Kai Engert <kaie@kuix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Mike Frysinger 4198e4f7e0 USB: isp1760: use __devexit_p() for remove function
The isp1760_plat_remove function is declared with __devexit, so the
.remove assignment needs to be wrapped with __devexit_p().

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Alan Stern a455212d19 USB: EHCI: update toggle state for linked QHs
This is an update to the "usb-ehci-update-toggle-state-for-linked-qhs"
patch.  Since an HCD's endpoint_reset method can be called in
interrupt context, it mustn't assume that interrupts are enabled or
that it can sleep.

So we revert to the original way of refreshing QHs' toggle bits.  Now
the endpoint_reset method merely clears the toggle flag in the device
structure (as was done before) and starts an async QH unlink.  When the
QH is linked again, after the unlink finishes and an URB is queued,
the qh_refresh() routine will update the QH's toggle bit.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: David <david@unsolicited.net>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Roel Kluin 9525dcb30f USB: fhci: mutually exclusive port_status
FHCI_PORT_DISABLED, -LOW and -FULL are mutually exclusive as status.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Jan Capek 9d37ff6456 USB: ftdi_sio - product ID's for CCS PIC programmers
The product ID's for the following devices have been added:
- LOAD-n-GO
- ICD-U64
- PRIME-8

Signed-off-by: Jan Capek <jan@ccsinfo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Paulius Zaleckas c03e7d4bc1 USB: gadget: fix imx_udc entry in Kconfig
Move USB_GADGET_IMX to the right section of Kconfig as this
controller is available only as integrated on i.MX CPU.

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:36 -07:00
Gianpaolo Cugola 8540d66615 USB: pl2303: New vendor and product id for the prolific driver
I recently bought a PC interface for the Cressi Edy dive computer
(www.cressi.it) and discovered that it uses the pl2303 chip, albeit
with ad-hoc vendor and product ids (04b8, 0521 respectively). Being in
the process of writing a linux software for such device (cressi only
provides a windows software), I patched the pl2303 linux driver to
have the interface recognized. I am submitting you the patch (very
basic) for inclusion in next kernel version.

From: Gianpaolo Cugola <gianpaoloc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-07-12 15:16:35 -07:00
Alan Cox d4fc4a7bfc tty: Fix the PL2303 private methods for sysrq
PL2303 has private data shovelling methods that also have no fast path. Fix
them to work the same way as the default handler.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:17:22 -07:00
Alan Cox 24a15a62dc tty: Fix USB kref leak
The sysrq code acquired a kref leak. Fix it by passing the tty separately
from the caller (thus effectively using the callers kref which all the
callers hold anyway)

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:17:22 -07:00
Alan Cox 4cd1de0afa tty: Sort out the USB sysrq changes that wrecked performance
We can't go around calling all sorts of magic per character functions at
full rate 3G data speed.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 19:17:22 -07:00
Joe Perches ad361c9884 Remove multiple KERN_ prefixes from printk formats
Commit 5fd29d6ccb ("printk: clean up
handling of log-levels and newlines") changed printk semantics.  printk
lines with multiple KERN_<level> prefixes are no longer emitted as
before the patch.

<level> is now included in the output on each additional use.

Remove all uses of multiple KERN_<level>s in formats.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08 10:30:03 -07:00
Paul Mundt 2b5c0c72ea Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.31 2009-07-07 11:55:05 +09:00
Kevin Cernekee 5bfd756097 Fix virt_to_phys() warnings
These warnings were observed on MIPS32 using 2.6.31-rc1 and gcc-4.2.0:

mm/page_alloc.c: In function 'alloc_pages_exact':
mm/page_alloc.c:1986: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast

drivers/usb/mon/mon_bin.c: In function 'mon_alloc_buff':
drivers/usb/mon/mon_bin.c:1264: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast

[akpm@linux-foundation.org: fix kernel/perf_counter.c too]
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-06 13:57:03 -07:00
Magnus Damm 64614e66fb usb: allow sh7724 to enable on-chip r8a66597
The sh7724 processor has two on-chip r8a66597 blocks, so add
it to the list of processors for SUPERH_ON_CHIP_R8A66597.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-05 00:23:50 +09:00
Thadeu Lima de Souza Cascardo f4fa446883 usb_serial: Fix oops when unexisting usb serial device is opened.
This commit 335f8514f2 has stopped
properly checking if there is any usb serial associated with the tty in
the close function. It happens the close function is called by releasing
the terminal right after opening the device fails.

As an example, open fails with a non-existing device, when probe has
never been called, because the device has never been plugged. This is
common in systems with static modules and no udev.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-25 11:24:26 -07:00
Thadeu Lima de Souza Cascardo 922b13565b acm: Fix oops when closing ACM tty device right after open has failed.
This commit 10077d4a66 has stopped
checking if there was a valid acm device associated to the tty, which is
not true right after open fails and tty subsystem tries to close the
device.

As an example, open fails with a non-existing device, when probe has
never been called, because the device has never been plugged. This is
common in systems with static modules and no udev.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-25 11:24:26 -07:00
Thadeu Lima de Souza Cascardo 42dd2aa649 acm: Return ENODEV instead of EINVAL when trying to open ACM device.
This is required, otherwise a user will get a EINVAL while opening a
non-existing device, instead of ENODEV.

This is what I get with this patch applied now instead of an "Invalid
argument".

  cascardo@vespa:~$ cat /dev/ttyACM0
  cat: /dev/ttyACM0: No such device
  cascardo@vespa:~$

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-25 11:24:26 -07:00
Benjamin Herrenschmidt 4b337c5f24 Merge commit 'origin/master' into next 2009-06-18 11:16:55 +10:00
Benjamin Herrenschmidt 492b057c42 Merge commit 'origin/master' into next 2009-06-17 10:24:53 +10:00
Linus Torvalds e1f5b94fd0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (143 commits)
  USB: xhci depends on PCI.
  USB: xhci: Add Makefile, MAINTAINERS, and Kconfig entries.
  USB: xhci: Respect critical sections.
  USB: xHCI: Fix interrupt moderation.
  USB: xhci: Remove packed attribute from structures.
  usb; xhci: Fix TRB offset calculations.
  USB: xhci: replace if-elseif-else with switch-case
  USB: xhci: Make xhci-mem.c include linux/dmapool.h
  USB: xhci: drop spinlock in xhci_urb_enqueue() error path.
  USB: Change names of SuperSpeed ep companion descriptor structs.
  USB: xhci: Avoid compiler reordering in Link TRB giveback.
  USB: xhci: Clean up xhci_irq() function.
  USB: xhci: Avoid global namespace pollution.
  USB: xhci: Fix Link TRB handoff bit twiddling.
  USB: xhci: Fix register write order.
  USB: xhci: fix some compiler warnings in xhci.h
  USB: xhci: fix lots of compiler warnings.
  USB: xhci: use xhci_handle_event instead of handle_event
  USB: xhci: URB cancellation support.
  USB: xhci: Scatter gather list support for bulk transfers.
  ...
2009-06-16 13:06:10 -07:00
Linus Torvalds 6fd03301d7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (64 commits)
  debugfs: use specified mode to possibly mark files read/write only
  debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.
  xen: remove driver_data direct access of struct device from more drivers
  usb: gadget: at91_udc: remove driver_data direct access of struct device
  uml: remove driver_data direct access of struct device
  block/ps3: remove driver_data direct access of struct device
  s390: remove driver_data direct access of struct device
  parport: remove driver_data direct access of struct device
  parisc: remove driver_data direct access of struct device
  of_serial: remove driver_data direct access of struct device
  mips: remove driver_data direct access of struct device
  ipmi: remove driver_data direct access of struct device
  infiniband: ehca: remove driver_data direct access of struct device
  ibmvscsi: gadget: at91_udc: remove driver_data direct access of struct device
  hvcs: remove driver_data direct access of struct device
  xen block: remove driver_data direct access of struct device
  thermal: remove driver_data direct access of struct device
  scsi: remove driver_data direct access of struct device
  pcmcia: remove driver_data direct access of struct device
  PCIE: remove driver_data direct access of struct device
  ...

Manually fix up trivial conflicts due to different direct driver_data
direct access fixups in drivers/block/{ps3disk.c,ps3vram.c}
2009-06-16 12:57:37 -07:00
Linus Torvalds 609106b9ac Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (38 commits)
  ps3flash: Always read chunks of 256 KiB, and cache them
  ps3flash: Cache the last accessed FLASH chunk
  ps3: Replace direct file operations by callback
  ps3: Switch ps3_os_area_[gs]et_rtc_diff to EXPORT_SYMBOL_GPL()
  ps3: Correct debug message in dma_ioc0_map_pages()
  drivers/ps3: Add missing annotations
  ps3fb: Use ps3_system_bus_[gs]et_drvdata() instead of direct access
  ps3flash: Use ps3_system_bus_[gs]et_drvdata() instead of direct access
  ps3: shorten ps3_system_bus_[gs]et_driver_data to ps3_system_bus_[gs]et_drvdata
  ps3: Use dev_[gs]et_drvdata() instead of direct access for system bus devices
  block/ps3: remove driver_data direct access of struct device
  ps3vram: Make ps3vram_priv.reports a void *
  ps3vram: Remove no longer used ps3vram_priv.ddr_base
  ps3vram: Replace mutex by spinlock + bio_list
  block: Add bio_list_peek()
  powerpc: Use generic atomic64_t implementation on 32-bit processors
  lib: Provide generic atomic64_t implementation
  powerpc: Add compiler memory barrier to mtmsr macro
  powerpc/iseries: Mark signal_vsp_instruction() as maybe unused
  powerpc/iseries: Fix unused function warning in iSeries DT code
  ...
2009-06-16 11:30:37 -07:00
Paul Mundt 1b6ed69f97 USB: xhci depends on PCI.
While it looks like xhci was written with both PCI and non-PCI in mind,
apparently only the former has seen any testing. xhci-mem.o can be "fixed"
with a linux/dmapool.h include, but there are still parts of the code that
make use of struct pci_dev directly. So, at least more work is needed before
this can be turned on for non-PCI builds:

  CC      drivers/usb/host/xhci-mem.o
drivers/usb/host/xhci-mem.c: In function 'xhci_segment_alloc':
drivers/usb/host/xhci-mem.c:45: error: implicit declaration of function 'dma_pool_alloc'
drivers/usb/host/xhci-mem.c:45: warning: assignment makes pointer from integer without a cast
drivers/usb/host/xhci-mem.c: In function 'xhci_segment_free':
drivers/usb/host/xhci-mem.c:67: error: implicit declaration of function 'dma_pool_free'
drivers/usb/host/xhci-mem.c: In function 'xhci_alloc_virt_device':
drivers/usb/host/xhci-mem.c:239: warning: assignment makes pointer from integer without a cast
drivers/usb/host/xhci-mem.c:248: warning: assignment makes pointer from integer without a cast
drivers/usb/host/xhci-mem.c: In function 'xhci_mem_cleanup':
drivers/usb/host/xhci-mem.c:578: error: implicit declaration of function 'dma_pool_destroy'
drivers/usb/host/xhci-mem.c: In function 'xhci_mem_init':
drivers/usb/host/xhci-mem.c:657: error: implicit declaration of function 'dma_pool_create'
drivers/usb/host/xhci-mem.c:658: warning: assignment makes pointer from integer without a cast
drivers/usb/host/xhci-mem.c:663: warning: assignment makes pointer from integer without a cast
make[3]: *** [drivers/usb/host/xhci-mem.o] Error 1

  CC      drivers/usb/host/xhci-pci.o
drivers/usb/host/xhci-pci.c: In function 'xhci_pci_reinit':
drivers/usb/host/xhci-pci.c:39: error: implicit declaration of function 'pci_set_mwi'
drivers/usb/host/xhci-pci.c: At top level:
drivers/usb/host/xhci-pci.c:151: error: 'usb_hcd_pci_probe' undeclared here (not in a function)
drivers/usb/host/xhci-pci.c:152: error: 'usb_hcd_pci_remove' undeclared here (not in a function)
drivers/usb/host/xhci-pci.c:155: error: 'usb_hcd_pci_shutdown' undeclared here (not in a function)
drivers/usb/host/xhci-pci.c:159: warning: function declaration isn't a prototype
drivers/usb/host/xhci-pci.c:164: warning: function declaration isn't a prototype
make[3]: *** [drivers/usb/host/xhci-pci.o] Error 1

Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp eb6bab138d USB: xhci: Add Makefile, MAINTAINERS, and Kconfig entries.
Add Makefile and Kconfig entries for the xHCI host controller driver.
List Sarah Sharp as the maintainer for the xHCI driver.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp f88ba78d9a USB: xhci: Respect critical sections.
Narrow down time spent holding the xHCI spinlock so that it's only used to
protect the xHCI rings, not as mutual exclusion.  Stop allocating memory
while holding the spinlock and calling xhci_alloc_virt_device() and
xhci_endpoint_init().

The USB core should have locking in it to prevent device state to be
manipulated by more than one kernel thread.  E.g. you can't free a device
while you're in the middle of setting a new configuration.  So removing
the locks from the sections where xhci_alloc_dev() and
xhci_reset_bandwidth() touch xHCI's representation of the device should be
OK.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp a4d8830226 USB: xHCI: Fix interrupt moderation.
Mask off the lower 16 bits of the interrupt control register, instead of
masking off the upper 16 bits.  The interrupt moderation interval field is
the lower 16 bytes, and is set to 0x4000 (1ms) by default.  The previous
code was adding 40 us to the default value, instead of setting it to 40
us.  This makes performance really bad.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp 9844197310 USB: xhci: Remove packed attribute from structures.
The packed attribute allows gcc to muck with the alignment of data
structures, which may lead to byte-wise writes that break atomicity of
writes.  Packed should only be used when the compile may add undesired
padding to the structure.  Each element of the structure will be aligned
by C based on its size and the size of the elements around it.  E.g. a u64
would be aligned on an 8 byte boundary, the next u32 would be aligned on a
four byte boundary, etc.

Since most of the xHCI structures contain only u32 bit values, removing
the packed attribute for them should be harmless.  (A future patch will
change some of the twin 32-bit address fields to one 64-bit field, but all
those places have an even number of 32-bit fields before them, so the
alignment should be correct.)  Add BUILD_BUG_ON statements to check that
the compiler doesn't add padding to the data structures that have a
hardware-defined layout.

While we're modifying the registers, change the name of intr_reg to
xhci_intr_reg to avoid global conflicts.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00
Sarah Sharp 6071d8363b usb; xhci: Fix TRB offset calculations.
Greg KH introduced a bug into xhci_trb_virt_to_dma() when he changed the
type of offset to dma_addr_t from unsigned int and dropped the casts to
unsigned int around the virtual address pointer subtraction.

trb and seg->trbs are both valid pointers to virtual addresses, so the
compiler will mod the subtraction by the size of union trb (16 bytes).
segment_offset is an unsigned long, which is guaranteed to be at least as
big as a void *.

Drop the void * casts in the first if statement because trb and seg->trbs
are both pointers of the same type (pointers to union trb).

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:44:51 -07:00