usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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/**
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* ep0.c - DesignWare USB3 DRD Controller Endpoint 0 Handling
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*
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* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
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*
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* Authors: Felipe Balbi <balbi@ti.com>,
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* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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*
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2013-06-30 19:15:11 +08:00
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 of
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* the License as published by the Free Software Foundation.
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usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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*
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2013-06-30 19:15:11 +08:00
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/list.h>
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#include <linux/dma-mapping.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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2011-11-02 20:30:45 +08:00
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#include <linux/usb/composite.h>
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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#include "core.h"
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#include "gadget.h"
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#include "io.h"
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2012-05-21 19:22:41 +08:00
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static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep);
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2012-05-04 18:03:54 +08:00
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static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
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struct dwc3_ep *dep, struct dwc3_request *req);
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2011-11-02 20:30:45 +08:00
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usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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static const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
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{
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switch (state) {
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case EP0_UNCONNECTED:
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return "Unconnected";
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2011-08-28 03:28:36 +08:00
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case EP0_SETUP_PHASE:
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return "Setup Phase";
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case EP0_DATA_PHASE:
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return "Data Phase";
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case EP0_STATUS_PHASE:
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return "Status Phase";
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usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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default:
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return "UNKNOWN";
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}
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}
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static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
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2011-08-28 03:28:36 +08:00
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u32 len, u32 type)
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usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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{
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struct dwc3_gadget_ep_cmd_params params;
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2012-02-06 17:04:53 +08:00
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struct dwc3_trb *trb;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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struct dwc3_ep *dep;
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int ret;
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dep = dwc->eps[epnum];
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2011-08-28 03:28:36 +08:00
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if (dep->flags & DWC3_EP_BUSY) {
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dev_vdbg(dwc->dev, "%s: still busy\n", dep->name);
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return 0;
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}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
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2012-02-06 17:04:53 +08:00
|
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trb = dwc->ep0_trb;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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2012-02-06 17:04:53 +08:00
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trb->bpl = lower_32_bits(buf_dma);
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trb->bph = upper_32_bits(buf_dma);
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trb->size = len;
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trb->ctrl = type;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
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2012-02-06 17:04:53 +08:00
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trb->ctrl |= (DWC3_TRB_CTRL_HWO
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| DWC3_TRB_CTRL_LST
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| DWC3_TRB_CTRL_IOC
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| DWC3_TRB_CTRL_ISP_IMI);
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usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
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memset(¶ms, 0, sizeof(params));
|
2011-09-30 15:58:51 +08:00
|
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params.param0 = upper_32_bits(dwc->ep0_trb_addr);
|
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params.param1 = lower_32_bits(dwc->ep0_trb_addr);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
ret = dwc3_send_gadget_ep_cmd(dwc, dep->number,
|
|
|
|
DWC3_DEPCMD_STARTTRANSFER, ¶ms);
|
|
|
|
if (ret < 0) {
|
|
|
|
dev_dbg(dwc->dev, "failed to send STARTTRANSFER command\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
dep->flags |= DWC3_EP_BUSY;
|
2012-06-06 17:04:13 +08:00
|
|
|
dep->resource_index = dwc3_gadget_ep_get_transfer_index(dwc,
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
dep->number);
|
|
|
|
|
2011-08-30 20:52:17 +08:00
|
|
|
dwc->ep0_next_event = DWC3_EP0_COMPLETE;
|
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
|
|
|
|
struct dwc3_request *req)
|
|
|
|
{
|
2011-11-02 20:30:45 +08:00
|
|
|
struct dwc3 *dwc = dep->dwc;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
req->request.actual = 0;
|
|
|
|
req->request.status = -EINPROGRESS;
|
|
|
|
req->epnum = dep->number;
|
|
|
|
|
|
|
|
list_add_tail(&req->list, &dep->request_list);
|
2011-08-28 03:18:09 +08:00
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
/*
|
|
|
|
* Gadget driver might not be quick enough to queue a request
|
|
|
|
* before we get a Transfer Not Ready event on this endpoint.
|
|
|
|
*
|
|
|
|
* In that case, we will set DWC3_EP_PENDING_REQUEST. When that
|
|
|
|
* flag is set, it's telling us that as soon as Gadget queues the
|
|
|
|
* required request, we should kick the transfer here because the
|
|
|
|
* IRQ we were waiting for is long gone.
|
|
|
|
*/
|
|
|
|
if (dep->flags & DWC3_EP_PENDING_REQUEST) {
|
|
|
|
unsigned direction;
|
|
|
|
|
|
|
|
direction = !!(dep->flags & DWC3_EP0_DIR_IN);
|
|
|
|
|
2011-12-29 12:32:29 +08:00
|
|
|
if (dwc->ep0state != EP0_DATA_PHASE) {
|
|
|
|
dev_WARN(dwc->dev, "Unexpected pending request\n");
|
2011-08-28 03:28:36 +08:00
|
|
|
return 0;
|
|
|
|
}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2012-05-04 18:03:54 +08:00
|
|
|
__dwc3_ep0_do_control_data(dwc, dwc->eps[direction], req);
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
dep->flags &= ~(DWC3_EP_PENDING_REQUEST |
|
|
|
|
DWC3_EP0_DIR_IN);
|
2012-07-19 13:51:13 +08:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* In case gadget driver asked us to delay the STATUS phase,
|
|
|
|
* handle it here.
|
|
|
|
*/
|
|
|
|
if (dwc->delayed_status) {
|
2012-07-20 02:05:08 +08:00
|
|
|
unsigned direction;
|
|
|
|
|
|
|
|
direction = !dwc->ep0_expect_in;
|
2011-11-02 20:30:45 +08:00
|
|
|
dwc->delayed_status = false;
|
2013-07-22 17:41:47 +08:00
|
|
|
usb_gadget_set_state(&dwc->gadget, USB_STATE_CONFIGURED);
|
2011-12-08 19:56:27 +08:00
|
|
|
|
|
|
|
if (dwc->ep0state == EP0_STATUS_PHASE)
|
2012-07-20 02:05:08 +08:00
|
|
|
__dwc3_ep0_do_control_status(dwc, dwc->eps[direction]);
|
2011-12-08 19:56:27 +08:00
|
|
|
else
|
|
|
|
dev_dbg(dwc->dev, "too early for delayed status\n");
|
2012-07-19 13:51:13 +08:00
|
|
|
|
|
|
|
return 0;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
|
usb: dwc3: ep0: move DATA phase away from on-demand
We uncovered a limitation of this core WRT to the
Link Layer Compliance Suite's TD7.06.
On that test, host will start a GetDescriptor(DEVICE)
standard request, but it will do so only on the
SETUP phase, meaning there will *NOT* be any DATA or
STATUS phases.
The idea of the test is to verify robustness of the
IP WRT framing errors, so the test will send a
sequence of different SETUP_DPs each with a different
framing error and the Suite expects us to be able to
receive all SETUP_DPs with no timeouts.
This core, has the ability to tell us which phase the
host is expecting before we start it. Whenever we
receive a TP or DP when no transfers are cached on
the internal IP's caches, the IP will generate a
XferNotReady event with status informing us (in case
of physical ep0/ep1) if it's related to DATA or STATUS
phases - SETUP phase is expected to be prestarted.
Because we're always waiting for XferNotReady
events for DATA and STATUS phases, we will never
be able to know that the Host wants to start another
SETUP phase instead, which will render us "not
compliant" with TD7.06.
In order to "fix" the problem we must not rely
on XferNotReady events for the DATA phase and try
to always pre-start DATA transfers on physical
endpoints 0 and 1. If host goes back to SETUP phase
from DATA phase we will receive a XferComplete for
that phase with TRB's status set to SETUP_PENDING,
which is only useful for printing a debugging log as
the core expects us to still go through to the STATUS
phase, initiate a CONTROL_STATUS TRB just so it
completes right away and, only then, we go back to
the pending SETUP phase.
SNPS has decided to modify the programming model of
the core so that on-demand DATA phases will not be
supported anymore. Note that this limitation does not
affect 2-stage transfers, meaning that if TD7.06 would
start a 2-stage transfer instead of a 3-stage transfer,
we would receive a "fake" XferNotReady(STATUS) which
would complete right after being initiated with
SETUP_PENDING status.
Other endpoints are also not affected, so we can still
use on-demand transfers on Bulk/Isoc/Interrupt endpoints.
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-07-19 14:05:35 +08:00
|
|
|
/*
|
|
|
|
* Unfortunately we have uncovered a limitation wrt the Data Phase.
|
|
|
|
*
|
|
|
|
* Section 9.4 says we can wait for the XferNotReady(DATA) event to
|
|
|
|
* come before issueing Start Transfer command, but if we do, we will
|
|
|
|
* miss situations where the host starts another SETUP phase instead of
|
|
|
|
* the DATA phase. Such cases happen at least on TD.7.6 of the Link
|
|
|
|
* Layer Compliance Suite.
|
|
|
|
*
|
|
|
|
* The problem surfaces due to the fact that in case of back-to-back
|
|
|
|
* SETUP packets there will be no XferNotReady(DATA) generated and we
|
|
|
|
* will be stuck waiting for XferNotReady(DATA) forever.
|
|
|
|
*
|
|
|
|
* By looking at tables 9-13 and 9-14 of the Databook, we can see that
|
|
|
|
* it tells us to start Data Phase right away. It also mentions that if
|
|
|
|
* we receive a SETUP phase instead of the DATA phase, core will issue
|
|
|
|
* XferComplete for the DATA phase, before actually initiating it in
|
|
|
|
* the wire, with the TRB's status set to "SETUP_PENDING". Such status
|
|
|
|
* can only be used to print some debugging logs, as the core expects
|
|
|
|
* us to go through to the STATUS phase and start a CONTROL_STATUS TRB,
|
|
|
|
* just so it completes right away, without transferring anything and,
|
|
|
|
* only then, we can go back to the SETUP phase.
|
|
|
|
*
|
|
|
|
* Because of this scenario, SNPS decided to change the programming
|
|
|
|
* model of control transfers and support on-demand transfers only for
|
|
|
|
* the STATUS phase. To fix the issue we have now, we will always wait
|
|
|
|
* for gadget driver to queue the DATA phase's struct usb_request, then
|
|
|
|
* start it right away.
|
|
|
|
*
|
|
|
|
* If we're actually in a 2-stage transfer, we will wait for
|
|
|
|
* XferNotReady(STATUS).
|
|
|
|
*/
|
|
|
|
if (dwc->three_stage_setup) {
|
|
|
|
unsigned direction;
|
|
|
|
|
|
|
|
direction = dwc->ep0_expect_in;
|
|
|
|
dwc->ep0state = EP0_DATA_PHASE;
|
|
|
|
|
|
|
|
__dwc3_ep0_do_control_data(dwc, dwc->eps[direction], req);
|
|
|
|
|
|
|
|
dep->flags &= ~DWC3_EP0_DIR_IN;
|
|
|
|
}
|
|
|
|
|
2012-07-19 13:49:01 +08:00
|
|
|
return 0;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
|
|
|
|
gfp_t gfp_flags)
|
|
|
|
{
|
|
|
|
struct dwc3_request *req = to_dwc3_request(request);
|
|
|
|
struct dwc3_ep *dep = to_dwc3_ep(ep);
|
|
|
|
struct dwc3 *dwc = dep->dwc;
|
|
|
|
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
2012-03-13 02:25:24 +08:00
|
|
|
if (!dep->endpoint.desc) {
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
dev_dbg(dwc->dev, "trying to queue request %p to disabled %s\n",
|
|
|
|
request, dep->name);
|
|
|
|
ret = -ESHUTDOWN;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* we share one TRB for ep0/1 */
|
2011-10-21 01:04:16 +08:00
|
|
|
if (!list_empty(&dep->request_list)) {
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
ret = -EBUSY;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_vdbg(dwc->dev, "queueing request %p to %s length %d, state '%s'\n",
|
|
|
|
request, dep->name, request->length,
|
|
|
|
dwc3_ep0_state_string(dwc->ep0state));
|
|
|
|
|
|
|
|
ret = __dwc3_gadget_ep0_queue(dep, req);
|
|
|
|
|
|
|
|
out:
|
|
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dwc3_ep0_stall_and_restart(struct dwc3 *dwc)
|
|
|
|
{
|
2012-07-23 14:07:41 +08:00
|
|
|
struct dwc3_ep *dep;
|
|
|
|
|
|
|
|
/* reinitialize physical ep1 */
|
|
|
|
dep = dwc->eps[1];
|
|
|
|
dep->flags = DWC3_EP_ENABLED;
|
2011-09-08 23:17:12 +08:00
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
/* stall is always issued on EP0 */
|
2012-07-23 14:07:41 +08:00
|
|
|
dep = dwc->eps[0];
|
2011-10-21 01:04:16 +08:00
|
|
|
__dwc3_gadget_ep_set_halt(dep, 1);
|
|
|
|
dep->flags = DWC3_EP_ENABLED;
|
2011-11-02 20:30:45 +08:00
|
|
|
dwc->delayed_status = false;
|
2011-09-08 23:17:12 +08:00
|
|
|
|
|
|
|
if (!list_empty(&dep->request_list)) {
|
|
|
|
struct dwc3_request *req;
|
|
|
|
|
|
|
|
req = next_request(&dep->request_list);
|
|
|
|
dwc3_gadget_giveback(dep, req, -ECONNRESET);
|
|
|
|
}
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
dwc->ep0state = EP0_SETUP_PHASE;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
dwc3_ep0_out_start(dwc);
|
|
|
|
}
|
|
|
|
|
2012-06-26 01:10:43 +08:00
|
|
|
int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value)
|
|
|
|
{
|
|
|
|
struct dwc3_ep *dep = to_dwc3_ep(ep);
|
|
|
|
struct dwc3 *dwc = dep->dwc;
|
|
|
|
|
|
|
|
dwc3_ep0_stall_and_restart(dwc);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
void dwc3_ep0_out_start(struct dwc3 *dwc)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
ret = dwc3_ep0_start_trans(dwc, 0, dwc->ctrl_req_addr, 8,
|
|
|
|
DWC3_TRBCTL_CONTROL_SETUP);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
WARN_ON(ret < 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct dwc3_ep *dwc3_wIndex_to_dep(struct dwc3 *dwc, __le16 wIndex_le)
|
|
|
|
{
|
|
|
|
struct dwc3_ep *dep;
|
|
|
|
u32 windex = le16_to_cpu(wIndex_le);
|
|
|
|
u32 epnum;
|
|
|
|
|
|
|
|
epnum = (windex & USB_ENDPOINT_NUMBER_MASK) << 1;
|
|
|
|
if ((windex & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
|
|
|
|
epnum |= 1;
|
|
|
|
|
|
|
|
dep = dwc->eps[epnum];
|
|
|
|
if (dep->flags & DWC3_EP_ENABLED)
|
|
|
|
return dep;
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2011-10-19 01:13:29 +08:00
|
|
|
static void dwc3_ep0_status_cmpl(struct usb_ep *ep, struct usb_request *req)
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
{
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* ch 9.4.5
|
|
|
|
*/
|
2011-11-04 18:32:47 +08:00
|
|
|
static int dwc3_ep0_handle_status(struct dwc3 *dwc,
|
|
|
|
struct usb_ctrlrequest *ctrl)
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
{
|
|
|
|
struct dwc3_ep *dep;
|
|
|
|
u32 recip;
|
2011-09-13 23:54:39 +08:00
|
|
|
u32 reg;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
u16 usb_status = 0;
|
|
|
|
__le16 *response_pkt;
|
|
|
|
|
|
|
|
recip = ctrl->bRequestType & USB_RECIP_MASK;
|
|
|
|
switch (recip) {
|
|
|
|
case USB_RECIP_DEVICE:
|
|
|
|
/*
|
2011-09-13 23:54:39 +08:00
|
|
|
* LTM will be set once we know how to set this in HW.
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
*/
|
|
|
|
usb_status |= dwc->is_selfpowered << USB_DEVICE_SELF_POWERED;
|
2011-09-13 23:54:39 +08:00
|
|
|
|
|
|
|
if (dwc->speed == DWC3_DSTS_SUPERSPEED) {
|
|
|
|
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
|
|
|
|
if (reg & DWC3_DCTL_INITU1ENA)
|
|
|
|
usb_status |= 1 << USB_DEV_STAT_U1_ENABLED;
|
|
|
|
if (reg & DWC3_DCTL_INITU2ENA)
|
|
|
|
usb_status |= 1 << USB_DEV_STAT_U2_ENABLED;
|
|
|
|
}
|
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
case USB_RECIP_INTERFACE:
|
|
|
|
/*
|
|
|
|
* Function Remote Wake Capable D0
|
|
|
|
* Function Remote Wakeup D1
|
|
|
|
*/
|
|
|
|
break;
|
|
|
|
|
|
|
|
case USB_RECIP_ENDPOINT:
|
|
|
|
dep = dwc3_wIndex_to_dep(dwc, ctrl->wIndex);
|
|
|
|
if (!dep)
|
2011-11-04 18:32:47 +08:00
|
|
|
return -EINVAL;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
if (dep->flags & DWC3_EP_STALL)
|
|
|
|
usb_status = 1 << USB_ENDPOINT_HALT;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
2013-10-09 07:01:37 +08:00
|
|
|
}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
response_pkt = (__le16 *) dwc->setup_buf;
|
|
|
|
*response_pkt = cpu_to_le16(usb_status);
|
2011-11-29 16:35:47 +08:00
|
|
|
|
|
|
|
dep = dwc->eps[0];
|
|
|
|
dwc->ep0_usb_req.dep = dep;
|
2011-11-25 19:03:46 +08:00
|
|
|
dwc->ep0_usb_req.request.length = sizeof(*response_pkt);
|
2011-12-19 17:32:34 +08:00
|
|
|
dwc->ep0_usb_req.request.buf = dwc->setup_buf;
|
2011-11-25 19:03:46 +08:00
|
|
|
dwc->ep0_usb_req.request.complete = dwc3_ep0_status_cmpl;
|
2011-11-29 16:35:47 +08:00
|
|
|
|
|
|
|
return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
|
|
|
|
struct usb_ctrlrequest *ctrl, int set)
|
|
|
|
{
|
|
|
|
struct dwc3_ep *dep;
|
|
|
|
u32 recip;
|
|
|
|
u32 wValue;
|
|
|
|
u32 wIndex;
|
2011-09-13 23:54:39 +08:00
|
|
|
u32 reg;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
int ret;
|
2013-01-25 17:28:19 +08:00
|
|
|
enum usb_device_state state;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
wValue = le16_to_cpu(ctrl->wValue);
|
|
|
|
wIndex = le16_to_cpu(ctrl->wIndex);
|
|
|
|
recip = ctrl->bRequestType & USB_RECIP_MASK;
|
2013-01-25 17:28:19 +08:00
|
|
|
state = dwc->gadget.state;
|
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
switch (recip) {
|
|
|
|
case USB_RECIP_DEVICE:
|
|
|
|
|
2011-09-13 23:54:39 +08:00
|
|
|
switch (wValue) {
|
|
|
|
case USB_DEVICE_REMOTE_WAKEUP:
|
|
|
|
break;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
/*
|
|
|
|
* 9.4.1 says only only for SS, in AddressState only for
|
|
|
|
* default control pipe
|
|
|
|
*/
|
|
|
|
case USB_DEVICE_U1_ENABLE:
|
2013-01-25 17:28:19 +08:00
|
|
|
if (state != USB_STATE_CONFIGURED)
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
return -EINVAL;
|
|
|
|
if (dwc->speed != DWC3_DSTS_SUPERSPEED)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2011-09-13 23:54:39 +08:00
|
|
|
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
|
|
|
|
if (set)
|
|
|
|
reg |= DWC3_DCTL_INITU1ENA;
|
|
|
|
else
|
|
|
|
reg &= ~DWC3_DCTL_INITU1ENA;
|
|
|
|
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
break;
|
2011-09-13 23:54:39 +08:00
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
case USB_DEVICE_U2_ENABLE:
|
2013-01-25 17:28:19 +08:00
|
|
|
if (state != USB_STATE_CONFIGURED)
|
2011-09-13 23:54:39 +08:00
|
|
|
return -EINVAL;
|
|
|
|
if (dwc->speed != DWC3_DSTS_SUPERSPEED)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
|
|
|
|
if (set)
|
|
|
|
reg |= DWC3_DCTL_INITU2ENA;
|
|
|
|
else
|
|
|
|
reg &= ~DWC3_DCTL_INITU2ENA;
|
|
|
|
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
break;
|
2011-09-13 23:54:39 +08:00
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
case USB_DEVICE_LTM_ENABLE:
|
2011-09-13 23:54:39 +08:00
|
|
|
return -EINVAL;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
case USB_DEVICE_TEST_MODE:
|
|
|
|
if ((wIndex & 0xff) != 0)
|
|
|
|
return -EINVAL;
|
|
|
|
if (!set)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2012-02-10 18:21:18 +08:00
|
|
|
dwc->test_mode_nr = wIndex >> 8;
|
|
|
|
dwc->test_mode = true;
|
2012-03-16 22:20:10 +08:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case USB_RECIP_INTERFACE:
|
|
|
|
switch (wValue) {
|
|
|
|
case USB_INTRF_FUNC_SUSPEND:
|
|
|
|
if (wIndex & USB_INTRF_FUNC_SUSPEND_LP)
|
|
|
|
/* XXX enable Low power suspend */
|
|
|
|
;
|
|
|
|
if (wIndex & USB_INTRF_FUNC_SUSPEND_RW)
|
|
|
|
/* XXX enable remote wakeup */
|
|
|
|
;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case USB_RECIP_ENDPOINT:
|
|
|
|
switch (wValue) {
|
|
|
|
case USB_ENDPOINT_HALT:
|
2012-02-16 10:56:56 +08:00
|
|
|
dep = dwc3_wIndex_to_dep(dwc, wIndex);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
if (!dep)
|
|
|
|
return -EINVAL;
|
2013-11-02 00:05:12 +08:00
|
|
|
if (set == 0 && (dep->flags & DWC3_EP_WEDGE))
|
|
|
|
break;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
ret = __dwc3_gadget_ep_set_halt(dep, set);
|
|
|
|
if (ret)
|
|
|
|
return -EINVAL;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
2013-10-09 07:01:37 +08:00
|
|
|
}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dwc3_ep0_set_address(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
|
|
|
|
{
|
2013-01-25 17:28:19 +08:00
|
|
|
enum usb_device_state state = dwc->gadget.state;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
u32 addr;
|
|
|
|
u32 reg;
|
|
|
|
|
|
|
|
addr = le16_to_cpu(ctrl->wValue);
|
2011-10-16 02:37:35 +08:00
|
|
|
if (addr > 127) {
|
|
|
|
dev_dbg(dwc->dev, "invalid device address %d\n", addr);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
return -EINVAL;
|
2011-10-16 02:37:35 +08:00
|
|
|
}
|
|
|
|
|
2013-01-25 17:28:19 +08:00
|
|
|
if (state == USB_STATE_CONFIGURED) {
|
2011-10-16 02:37:35 +08:00
|
|
|
dev_dbg(dwc->dev, "trying to set address when configured\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2011-09-30 15:58:36 +08:00
|
|
|
reg = dwc3_readl(dwc->regs, DWC3_DCFG);
|
|
|
|
reg &= ~(DWC3_DCFG_DEVADDR_MASK);
|
|
|
|
reg |= DWC3_DCFG_DEVADDR(addr);
|
|
|
|
dwc3_writel(dwc->regs, DWC3_DCFG, reg);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2013-01-25 17:28:19 +08:00
|
|
|
if (addr)
|
2011-12-19 19:01:52 +08:00
|
|
|
usb_gadget_set_state(&dwc->gadget, USB_STATE_ADDRESS);
|
2013-01-25 17:28:19 +08:00
|
|
|
else
|
2011-12-19 19:01:52 +08:00
|
|
|
usb_gadget_set_state(&dwc->gadget, USB_STATE_DEFAULT);
|
2011-08-28 03:28:36 +08:00
|
|
|
|
2011-09-30 15:58:36 +08:00
|
|
|
return 0;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static int dwc3_ep0_delegate_req(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
spin_unlock(&dwc->lock);
|
|
|
|
ret = dwc->gadget_driver->setup(&dwc->gadget, ctrl);
|
|
|
|
spin_lock(&dwc->lock);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
|
|
|
|
{
|
2013-01-25 17:28:19 +08:00
|
|
|
enum usb_device_state state = dwc->gadget.state;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
u32 cfg;
|
|
|
|
int ret;
|
2012-07-02 12:51:54 +08:00
|
|
|
u32 reg;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2011-09-30 15:58:42 +08:00
|
|
|
dwc->start_config_issued = false;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
cfg = le16_to_cpu(ctrl->wValue);
|
|
|
|
|
2013-01-25 17:28:19 +08:00
|
|
|
switch (state) {
|
|
|
|
case USB_STATE_DEFAULT:
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
return -EINVAL;
|
|
|
|
break;
|
|
|
|
|
2013-01-25 17:28:19 +08:00
|
|
|
case USB_STATE_ADDRESS:
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
ret = dwc3_ep0_delegate_req(dwc, ctrl);
|
|
|
|
/* if the cfg matches and the cfg is non zero */
|
2012-01-19 00:04:09 +08:00
|
|
|
if (cfg && (!ret || (ret == USB_GADGET_DELAYED_STATUS))) {
|
2013-07-22 17:41:47 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* only change state if set_config has already
|
|
|
|
* been processed. If gadget driver returns
|
|
|
|
* USB_GADGET_DELAYED_STATUS, we will wait
|
|
|
|
* to change the state on the next usb_ep_queue()
|
|
|
|
*/
|
|
|
|
if (ret == 0)
|
|
|
|
usb_gadget_set_state(&dwc->gadget,
|
|
|
|
USB_STATE_CONFIGURED);
|
2011-12-19 19:01:52 +08:00
|
|
|
|
2012-07-02 12:51:54 +08:00
|
|
|
/*
|
|
|
|
* Enable transition to U1/U2 state when
|
|
|
|
* nothing is pending from application.
|
|
|
|
*/
|
|
|
|
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
|
|
|
|
reg |= (DWC3_DCTL_ACCEPTU1ENA | DWC3_DCTL_ACCEPTU2ENA);
|
|
|
|
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
|
|
|
|
|
2012-01-19 00:04:09 +08:00
|
|
|
dwc->resize_fifos = true;
|
|
|
|
dev_dbg(dwc->dev, "resize fifos flag SET\n");
|
|
|
|
}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
break;
|
|
|
|
|
2013-01-25 17:28:19 +08:00
|
|
|
case USB_STATE_CONFIGURED:
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
ret = dwc3_ep0_delegate_req(dwc, ctrl);
|
2013-07-22 17:31:31 +08:00
|
|
|
if (!cfg && !ret)
|
2011-12-19 19:01:52 +08:00
|
|
|
usb_gadget_set_state(&dwc->gadget,
|
|
|
|
USB_STATE_ADDRESS);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
break;
|
2011-11-02 20:30:45 +08:00
|
|
|
default:
|
|
|
|
ret = -EINVAL;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
2011-11-02 20:30:45 +08:00
|
|
|
return ret;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
|
2012-04-24 21:19:49 +08:00
|
|
|
static void dwc3_ep0_set_sel_cmpl(struct usb_ep *ep, struct usb_request *req)
|
|
|
|
{
|
|
|
|
struct dwc3_ep *dep = to_dwc3_ep(ep);
|
|
|
|
struct dwc3 *dwc = dep->dwc;
|
|
|
|
|
|
|
|
u32 param = 0;
|
|
|
|
u32 reg;
|
|
|
|
|
|
|
|
struct timing {
|
|
|
|
u8 u1sel;
|
|
|
|
u8 u1pel;
|
|
|
|
u16 u2sel;
|
|
|
|
u16 u2pel;
|
|
|
|
} __packed timing;
|
|
|
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
memcpy(&timing, req->buf, sizeof(timing));
|
|
|
|
|
|
|
|
dwc->u1sel = timing.u1sel;
|
|
|
|
dwc->u1pel = timing.u1pel;
|
2012-05-31 16:00:28 +08:00
|
|
|
dwc->u2sel = le16_to_cpu(timing.u2sel);
|
|
|
|
dwc->u2pel = le16_to_cpu(timing.u2pel);
|
2012-04-24 21:19:49 +08:00
|
|
|
|
|
|
|
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
|
|
|
|
if (reg & DWC3_DCTL_INITU2ENA)
|
|
|
|
param = dwc->u2pel;
|
|
|
|
if (reg & DWC3_DCTL_INITU1ENA)
|
|
|
|
param = dwc->u1pel;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* According to Synopsys Databook, if parameter is
|
|
|
|
* greater than 125, a value of zero should be
|
|
|
|
* programmed in the register.
|
|
|
|
*/
|
|
|
|
if (param > 125)
|
|
|
|
param = 0;
|
|
|
|
|
|
|
|
/* now that we have the time, issue DGCMD Set Sel */
|
|
|
|
ret = dwc3_send_gadget_generic_command(dwc,
|
|
|
|
DWC3_DGCMD_SET_PERIODIC_PAR, param);
|
|
|
|
WARN_ON(ret < 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dwc3_ep0_set_sel(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
|
|
|
|
{
|
|
|
|
struct dwc3_ep *dep;
|
2013-01-25 17:28:19 +08:00
|
|
|
enum usb_device_state state = dwc->gadget.state;
|
2012-04-24 21:19:49 +08:00
|
|
|
u16 wLength;
|
|
|
|
u16 wValue;
|
|
|
|
|
2013-01-25 17:28:19 +08:00
|
|
|
if (state == USB_STATE_DEFAULT)
|
2012-04-24 21:19:49 +08:00
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
wValue = le16_to_cpu(ctrl->wValue);
|
|
|
|
wLength = le16_to_cpu(ctrl->wLength);
|
|
|
|
|
|
|
|
if (wLength != 6) {
|
|
|
|
dev_err(dwc->dev, "Set SEL should be 6 bytes, got %d\n",
|
|
|
|
wLength);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* To handle Set SEL we need to receive 6 bytes from Host. So let's
|
|
|
|
* queue a usb_request for 6 bytes.
|
|
|
|
*
|
|
|
|
* Remember, though, this controller can't handle non-wMaxPacketSize
|
|
|
|
* aligned transfers on the OUT direction, so we queue a request for
|
|
|
|
* wMaxPacketSize instead.
|
|
|
|
*/
|
|
|
|
dep = dwc->eps[0];
|
|
|
|
dwc->ep0_usb_req.dep = dep;
|
|
|
|
dwc->ep0_usb_req.request.length = dep->endpoint.maxpacket;
|
|
|
|
dwc->ep0_usb_req.request.buf = dwc->setup_buf;
|
|
|
|
dwc->ep0_usb_req.request.complete = dwc3_ep0_set_sel_cmpl;
|
|
|
|
|
|
|
|
return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req);
|
|
|
|
}
|
|
|
|
|
2012-04-25 15:45:05 +08:00
|
|
|
static int dwc3_ep0_set_isoch_delay(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
|
|
|
|
{
|
|
|
|
u16 wLength;
|
|
|
|
u16 wValue;
|
|
|
|
u16 wIndex;
|
|
|
|
|
|
|
|
wValue = le16_to_cpu(ctrl->wValue);
|
|
|
|
wLength = le16_to_cpu(ctrl->wLength);
|
|
|
|
wIndex = le16_to_cpu(ctrl->wIndex);
|
|
|
|
|
|
|
|
if (wIndex || wLength)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* REVISIT It's unclear from Databook what to do with this
|
|
|
|
* value. For now, just cache it.
|
|
|
|
*/
|
|
|
|
dwc->isoch_delay = wValue;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
switch (ctrl->bRequest) {
|
|
|
|
case USB_REQ_GET_STATUS:
|
|
|
|
dev_vdbg(dwc->dev, "USB_REQ_GET_STATUS\n");
|
|
|
|
ret = dwc3_ep0_handle_status(dwc, ctrl);
|
|
|
|
break;
|
|
|
|
case USB_REQ_CLEAR_FEATURE:
|
|
|
|
dev_vdbg(dwc->dev, "USB_REQ_CLEAR_FEATURE\n");
|
|
|
|
ret = dwc3_ep0_handle_feature(dwc, ctrl, 0);
|
|
|
|
break;
|
|
|
|
case USB_REQ_SET_FEATURE:
|
|
|
|
dev_vdbg(dwc->dev, "USB_REQ_SET_FEATURE\n");
|
|
|
|
ret = dwc3_ep0_handle_feature(dwc, ctrl, 1);
|
|
|
|
break;
|
|
|
|
case USB_REQ_SET_ADDRESS:
|
|
|
|
dev_vdbg(dwc->dev, "USB_REQ_SET_ADDRESS\n");
|
|
|
|
ret = dwc3_ep0_set_address(dwc, ctrl);
|
|
|
|
break;
|
|
|
|
case USB_REQ_SET_CONFIGURATION:
|
|
|
|
dev_vdbg(dwc->dev, "USB_REQ_SET_CONFIGURATION\n");
|
|
|
|
ret = dwc3_ep0_set_config(dwc, ctrl);
|
|
|
|
break;
|
2012-04-24 21:19:49 +08:00
|
|
|
case USB_REQ_SET_SEL:
|
|
|
|
dev_vdbg(dwc->dev, "USB_REQ_SET_SEL\n");
|
|
|
|
ret = dwc3_ep0_set_sel(dwc, ctrl);
|
|
|
|
break;
|
2012-04-25 15:45:05 +08:00
|
|
|
case USB_REQ_SET_ISOCH_DELAY:
|
|
|
|
dev_vdbg(dwc->dev, "USB_REQ_SET_ISOCH_DELAY\n");
|
|
|
|
ret = dwc3_ep0_set_isoch_delay(dwc, ctrl);
|
|
|
|
break;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
default:
|
|
|
|
dev_vdbg(dwc->dev, "Forwarding to gadget driver\n");
|
|
|
|
ret = dwc3_ep0_delegate_req(dwc, ctrl);
|
|
|
|
break;
|
2013-10-09 07:01:37 +08:00
|
|
|
}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dwc3_ep0_inspect_setup(struct dwc3 *dwc,
|
|
|
|
const struct dwc3_event_depevt *event)
|
|
|
|
{
|
|
|
|
struct usb_ctrlrequest *ctrl = dwc->ctrl_req;
|
2012-05-31 15:29:49 +08:00
|
|
|
int ret = -EINVAL;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
u32 len;
|
|
|
|
|
|
|
|
if (!dwc->gadget_driver)
|
2012-05-31 15:29:49 +08:00
|
|
|
goto out;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
len = le16_to_cpu(ctrl->wLength);
|
2011-08-30 20:52:17 +08:00
|
|
|
if (!len) {
|
2011-09-30 15:58:37 +08:00
|
|
|
dwc->three_stage_setup = false;
|
|
|
|
dwc->ep0_expect_in = false;
|
2011-08-30 20:52:17 +08:00
|
|
|
dwc->ep0_next_event = DWC3_EP0_NRDY_STATUS;
|
|
|
|
} else {
|
2011-09-30 15:58:37 +08:00
|
|
|
dwc->three_stage_setup = true;
|
|
|
|
dwc->ep0_expect_in = !!(ctrl->bRequestType & USB_DIR_IN);
|
2011-08-30 20:52:17 +08:00
|
|
|
dwc->ep0_next_event = DWC3_EP0_NRDY_DATA;
|
|
|
|
}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD)
|
|
|
|
ret = dwc3_ep0_std_request(dwc, ctrl);
|
|
|
|
else
|
|
|
|
ret = dwc3_ep0_delegate_req(dwc, ctrl);
|
|
|
|
|
2011-11-02 20:30:45 +08:00
|
|
|
if (ret == USB_GADGET_DELAYED_STATUS)
|
|
|
|
dwc->delayed_status = true;
|
|
|
|
|
2012-05-31 15:29:49 +08:00
|
|
|
out:
|
|
|
|
if (ret < 0)
|
|
|
|
dwc3_ep0_stall_and_restart(dwc);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void dwc3_ep0_complete_data(struct dwc3 *dwc,
|
|
|
|
const struct dwc3_event_depevt *event)
|
|
|
|
{
|
|
|
|
struct dwc3_request *r = NULL;
|
|
|
|
struct usb_request *ur;
|
2012-02-06 17:04:53 +08:00
|
|
|
struct dwc3_trb *trb;
|
2011-10-21 01:04:16 +08:00
|
|
|
struct dwc3_ep *ep0;
|
2011-08-27 07:30:33 +08:00
|
|
|
u32 transferred;
|
usb: dwc3: ep0: move DATA phase away from on-demand
We uncovered a limitation of this core WRT to the
Link Layer Compliance Suite's TD7.06.
On that test, host will start a GetDescriptor(DEVICE)
standard request, but it will do so only on the
SETUP phase, meaning there will *NOT* be any DATA or
STATUS phases.
The idea of the test is to verify robustness of the
IP WRT framing errors, so the test will send a
sequence of different SETUP_DPs each with a different
framing error and the Suite expects us to be able to
receive all SETUP_DPs with no timeouts.
This core, has the ability to tell us which phase the
host is expecting before we start it. Whenever we
receive a TP or DP when no transfers are cached on
the internal IP's caches, the IP will generate a
XferNotReady event with status informing us (in case
of physical ep0/ep1) if it's related to DATA or STATUS
phases - SETUP phase is expected to be prestarted.
Because we're always waiting for XferNotReady
events for DATA and STATUS phases, we will never
be able to know that the Host wants to start another
SETUP phase instead, which will render us "not
compliant" with TD7.06.
In order to "fix" the problem we must not rely
on XferNotReady events for the DATA phase and try
to always pre-start DATA transfers on physical
endpoints 0 and 1. If host goes back to SETUP phase
from DATA phase we will receive a XferComplete for
that phase with TRB's status set to SETUP_PENDING,
which is only useful for printing a debugging log as
the core expects us to still go through to the STATUS
phase, initiate a CONTROL_STATUS TRB just so it
completes right away and, only then, we go back to
the pending SETUP phase.
SNPS has decided to modify the programming model of
the core so that on-demand DATA phases will not be
supported anymore. Note that this limitation does not
affect 2-stage transfers, meaning that if TD7.06 would
start a 2-stage transfer instead of a 3-stage transfer,
we would receive a "fake" XferNotReady(STATUS) which
would complete right after being initiated with
SETUP_PENDING status.
Other endpoints are also not affected, so we can still
use on-demand transfers on Bulk/Isoc/Interrupt endpoints.
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-07-19 14:05:35 +08:00
|
|
|
u32 status;
|
2012-02-06 17:04:53 +08:00
|
|
|
u32 length;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
u8 epnum;
|
|
|
|
|
|
|
|
epnum = event->endpoint_number;
|
2011-10-21 01:04:16 +08:00
|
|
|
ep0 = dwc->eps[0];
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2011-08-30 20:52:17 +08:00
|
|
|
dwc->ep0_next_event = DWC3_EP0_NRDY_STATUS;
|
|
|
|
|
2011-10-21 01:04:16 +08:00
|
|
|
r = next_request(&ep0->request_list);
|
2011-10-19 01:13:29 +08:00
|
|
|
ur = &r->request;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2012-02-06 17:04:53 +08:00
|
|
|
trb = dwc->ep0_trb;
|
usb: dwc3: ep0: move DATA phase away from on-demand
We uncovered a limitation of this core WRT to the
Link Layer Compliance Suite's TD7.06.
On that test, host will start a GetDescriptor(DEVICE)
standard request, but it will do so only on the
SETUP phase, meaning there will *NOT* be any DATA or
STATUS phases.
The idea of the test is to verify robustness of the
IP WRT framing errors, so the test will send a
sequence of different SETUP_DPs each with a different
framing error and the Suite expects us to be able to
receive all SETUP_DPs with no timeouts.
This core, has the ability to tell us which phase the
host is expecting before we start it. Whenever we
receive a TP or DP when no transfers are cached on
the internal IP's caches, the IP will generate a
XferNotReady event with status informing us (in case
of physical ep0/ep1) if it's related to DATA or STATUS
phases - SETUP phase is expected to be prestarted.
Because we're always waiting for XferNotReady
events for DATA and STATUS phases, we will never
be able to know that the Host wants to start another
SETUP phase instead, which will render us "not
compliant" with TD7.06.
In order to "fix" the problem we must not rely
on XferNotReady events for the DATA phase and try
to always pre-start DATA transfers on physical
endpoints 0 and 1. If host goes back to SETUP phase
from DATA phase we will receive a XferComplete for
that phase with TRB's status set to SETUP_PENDING,
which is only useful for printing a debugging log as
the core expects us to still go through to the STATUS
phase, initiate a CONTROL_STATUS TRB just so it
completes right away and, only then, we go back to
the pending SETUP phase.
SNPS has decided to modify the programming model of
the core so that on-demand DATA phases will not be
supported anymore. Note that this limitation does not
affect 2-stage transfers, meaning that if TD7.06 would
start a 2-stage transfer instead of a 3-stage transfer,
we would receive a "fake" XferNotReady(STATUS) which
would complete right after being initiated with
SETUP_PENDING status.
Other endpoints are also not affected, so we can still
use on-demand transfers on Bulk/Isoc/Interrupt endpoints.
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-07-19 14:05:35 +08:00
|
|
|
|
|
|
|
status = DWC3_TRB_SIZE_TRBSTS(trb->size);
|
|
|
|
if (status == DWC3_TRBSTS_SETUP_PENDING) {
|
|
|
|
dev_dbg(dwc->dev, "Setup Pending received\n");
|
|
|
|
|
|
|
|
if (r)
|
|
|
|
dwc3_gadget_giveback(ep0, r, -ECONNRESET);
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2012-02-06 17:04:53 +08:00
|
|
|
length = trb->size & DWC3_TRB_SIZE_MASK;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2011-08-28 03:18:09 +08:00
|
|
|
if (dwc->ep0_bounced) {
|
2012-03-14 13:44:56 +08:00
|
|
|
unsigned transfer_size = ur->length;
|
|
|
|
unsigned maxp = ep0->endpoint.maxpacket;
|
|
|
|
|
|
|
|
transfer_size += (maxp - (transfer_size % maxp));
|
2011-08-28 03:28:36 +08:00
|
|
|
transferred = min_t(u32, ur->length,
|
2012-03-14 13:44:56 +08:00
|
|
|
transfer_size - length);
|
2011-08-28 03:18:09 +08:00
|
|
|
memcpy(ur->buf, dwc->ep0_bounce, transferred);
|
|
|
|
} else {
|
2012-02-06 17:04:53 +08:00
|
|
|
transferred = ur->length - length;
|
2011-08-28 03:18:09 +08:00
|
|
|
}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2012-03-21 17:44:00 +08:00
|
|
|
ur->actual += transferred;
|
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
if ((epnum & 1) && ur->actual < ur->length) {
|
|
|
|
/* for some reason we did not get everything out */
|
|
|
|
|
|
|
|
dwc3_ep0_stall_and_restart(dwc);
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* handle the case where we have to send a zero packet. This
|
|
|
|
* seems to be case when req.length > maxpacket. Could it be?
|
|
|
|
*/
|
|
|
|
if (r)
|
2011-10-21 01:04:16 +08:00
|
|
|
dwc3_gadget_giveback(ep0, r, 0);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-05-31 17:32:37 +08:00
|
|
|
static void dwc3_ep0_complete_status(struct dwc3 *dwc,
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
const struct dwc3_event_depevt *event)
|
|
|
|
{
|
|
|
|
struct dwc3_request *r;
|
|
|
|
struct dwc3_ep *dep;
|
usb: dwc3: ep0: move DATA phase away from on-demand
We uncovered a limitation of this core WRT to the
Link Layer Compliance Suite's TD7.06.
On that test, host will start a GetDescriptor(DEVICE)
standard request, but it will do so only on the
SETUP phase, meaning there will *NOT* be any DATA or
STATUS phases.
The idea of the test is to verify robustness of the
IP WRT framing errors, so the test will send a
sequence of different SETUP_DPs each with a different
framing error and the Suite expects us to be able to
receive all SETUP_DPs with no timeouts.
This core, has the ability to tell us which phase the
host is expecting before we start it. Whenever we
receive a TP or DP when no transfers are cached on
the internal IP's caches, the IP will generate a
XferNotReady event with status informing us (in case
of physical ep0/ep1) if it's related to DATA or STATUS
phases - SETUP phase is expected to be prestarted.
Because we're always waiting for XferNotReady
events for DATA and STATUS phases, we will never
be able to know that the Host wants to start another
SETUP phase instead, which will render us "not
compliant" with TD7.06.
In order to "fix" the problem we must not rely
on XferNotReady events for the DATA phase and try
to always pre-start DATA transfers on physical
endpoints 0 and 1. If host goes back to SETUP phase
from DATA phase we will receive a XferComplete for
that phase with TRB's status set to SETUP_PENDING,
which is only useful for printing a debugging log as
the core expects us to still go through to the STATUS
phase, initiate a CONTROL_STATUS TRB just so it
completes right away and, only then, we go back to
the pending SETUP phase.
SNPS has decided to modify the programming model of
the core so that on-demand DATA phases will not be
supported anymore. Note that this limitation does not
affect 2-stage transfers, meaning that if TD7.06 would
start a 2-stage transfer instead of a 3-stage transfer,
we would receive a "fake" XferNotReady(STATUS) which
would complete right after being initiated with
SETUP_PENDING status.
Other endpoints are also not affected, so we can still
use on-demand transfers on Bulk/Isoc/Interrupt endpoints.
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-07-19 14:05:35 +08:00
|
|
|
struct dwc3_trb *trb;
|
|
|
|
u32 status;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
dep = dwc->eps[0];
|
usb: dwc3: ep0: move DATA phase away from on-demand
We uncovered a limitation of this core WRT to the
Link Layer Compliance Suite's TD7.06.
On that test, host will start a GetDescriptor(DEVICE)
standard request, but it will do so only on the
SETUP phase, meaning there will *NOT* be any DATA or
STATUS phases.
The idea of the test is to verify robustness of the
IP WRT framing errors, so the test will send a
sequence of different SETUP_DPs each with a different
framing error and the Suite expects us to be able to
receive all SETUP_DPs with no timeouts.
This core, has the ability to tell us which phase the
host is expecting before we start it. Whenever we
receive a TP or DP when no transfers are cached on
the internal IP's caches, the IP will generate a
XferNotReady event with status informing us (in case
of physical ep0/ep1) if it's related to DATA or STATUS
phases - SETUP phase is expected to be prestarted.
Because we're always waiting for XferNotReady
events for DATA and STATUS phases, we will never
be able to know that the Host wants to start another
SETUP phase instead, which will render us "not
compliant" with TD7.06.
In order to "fix" the problem we must not rely
on XferNotReady events for the DATA phase and try
to always pre-start DATA transfers on physical
endpoints 0 and 1. If host goes back to SETUP phase
from DATA phase we will receive a XferComplete for
that phase with TRB's status set to SETUP_PENDING,
which is only useful for printing a debugging log as
the core expects us to still go through to the STATUS
phase, initiate a CONTROL_STATUS TRB just so it
completes right away and, only then, we go back to
the pending SETUP phase.
SNPS has decided to modify the programming model of
the core so that on-demand DATA phases will not be
supported anymore. Note that this limitation does not
affect 2-stage transfers, meaning that if TD7.06 would
start a 2-stage transfer instead of a 3-stage transfer,
we would receive a "fake" XferNotReady(STATUS) which
would complete right after being initiated with
SETUP_PENDING status.
Other endpoints are also not affected, so we can still
use on-demand transfers on Bulk/Isoc/Interrupt endpoints.
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-07-19 14:05:35 +08:00
|
|
|
trb = dwc->ep0_trb;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
|
|
|
if (!list_empty(&dep->request_list)) {
|
|
|
|
r = next_request(&dep->request_list);
|
|
|
|
|
|
|
|
dwc3_gadget_giveback(dep, r, 0);
|
|
|
|
}
|
|
|
|
|
2012-02-10 18:21:18 +08:00
|
|
|
if (dwc->test_mode) {
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = dwc3_gadget_set_test_mode(dwc, dwc->test_mode_nr);
|
|
|
|
if (ret < 0) {
|
|
|
|
dev_dbg(dwc->dev, "Invalid Test #%d\n",
|
|
|
|
dwc->test_mode_nr);
|
|
|
|
dwc3_ep0_stall_and_restart(dwc);
|
2012-06-26 00:30:49 +08:00
|
|
|
return;
|
2012-02-10 18:21:18 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
usb: dwc3: ep0: move DATA phase away from on-demand
We uncovered a limitation of this core WRT to the
Link Layer Compliance Suite's TD7.06.
On that test, host will start a GetDescriptor(DEVICE)
standard request, but it will do so only on the
SETUP phase, meaning there will *NOT* be any DATA or
STATUS phases.
The idea of the test is to verify robustness of the
IP WRT framing errors, so the test will send a
sequence of different SETUP_DPs each with a different
framing error and the Suite expects us to be able to
receive all SETUP_DPs with no timeouts.
This core, has the ability to tell us which phase the
host is expecting before we start it. Whenever we
receive a TP or DP when no transfers are cached on
the internal IP's caches, the IP will generate a
XferNotReady event with status informing us (in case
of physical ep0/ep1) if it's related to DATA or STATUS
phases - SETUP phase is expected to be prestarted.
Because we're always waiting for XferNotReady
events for DATA and STATUS phases, we will never
be able to know that the Host wants to start another
SETUP phase instead, which will render us "not
compliant" with TD7.06.
In order to "fix" the problem we must not rely
on XferNotReady events for the DATA phase and try
to always pre-start DATA transfers on physical
endpoints 0 and 1. If host goes back to SETUP phase
from DATA phase we will receive a XferComplete for
that phase with TRB's status set to SETUP_PENDING,
which is only useful for printing a debugging log as
the core expects us to still go through to the STATUS
phase, initiate a CONTROL_STATUS TRB just so it
completes right away and, only then, we go back to
the pending SETUP phase.
SNPS has decided to modify the programming model of
the core so that on-demand DATA phases will not be
supported anymore. Note that this limitation does not
affect 2-stage transfers, meaning that if TD7.06 would
start a 2-stage transfer instead of a 3-stage transfer,
we would receive a "fake" XferNotReady(STATUS) which
would complete right after being initiated with
SETUP_PENDING status.
Other endpoints are also not affected, so we can still
use on-demand transfers on Bulk/Isoc/Interrupt endpoints.
Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-07-19 14:05:35 +08:00
|
|
|
status = DWC3_TRB_SIZE_TRBSTS(trb->size);
|
|
|
|
if (status == DWC3_TRBSTS_SETUP_PENDING)
|
|
|
|
dev_dbg(dwc->dev, "Setup Pending received\n");
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
dwc->ep0state = EP0_SETUP_PHASE;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
dwc3_ep0_out_start(dwc);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
|
|
|
|
const struct dwc3_event_depevt *event)
|
|
|
|
{
|
2011-08-28 03:28:36 +08:00
|
|
|
struct dwc3_ep *dep = dwc->eps[event->endpoint_number];
|
|
|
|
|
|
|
|
dep->flags &= ~DWC3_EP_BUSY;
|
2012-06-06 17:04:13 +08:00
|
|
|
dep->resource_index = 0;
|
2011-10-14 20:11:49 +08:00
|
|
|
dwc->setup_packet_pending = false;
|
2011-08-28 03:28:36 +08:00
|
|
|
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
switch (dwc->ep0state) {
|
2011-08-28 03:28:36 +08:00
|
|
|
case EP0_SETUP_PHASE:
|
|
|
|
dev_vdbg(dwc->dev, "Inspecting Setup Bytes\n");
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
dwc3_ep0_inspect_setup(dwc, event);
|
|
|
|
break;
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
case EP0_DATA_PHASE:
|
|
|
|
dev_vdbg(dwc->dev, "Data Phase\n");
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
dwc3_ep0_complete_data(dwc, event);
|
|
|
|
break;
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
case EP0_STATUS_PHASE:
|
|
|
|
dev_vdbg(dwc->dev, "Status Phase\n");
|
2012-05-31 17:32:37 +08:00
|
|
|
dwc3_ep0_complete_status(dwc, event);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
break;
|
2011-08-28 03:28:36 +08:00
|
|
|
default:
|
|
|
|
WARN(true, "UNKNOWN ep0state %d\n", dwc->ep0state);
|
|
|
|
}
|
|
|
|
}
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2012-05-04 18:03:54 +08:00
|
|
|
static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
|
|
|
|
struct dwc3_ep *dep, struct dwc3_request *req)
|
2011-08-28 03:28:36 +08:00
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
2012-05-04 18:03:54 +08:00
|
|
|
req->direction = !!dep->number;
|
2011-08-28 03:28:36 +08:00
|
|
|
|
|
|
|
if (req->request.length == 0) {
|
2012-05-04 18:03:54 +08:00
|
|
|
ret = dwc3_ep0_start_trans(dwc, dep->number,
|
2011-08-28 03:28:36 +08:00
|
|
|
dwc->ctrl_req_addr, 0,
|
|
|
|
DWC3_TRBCTL_CONTROL_DATA);
|
2012-05-04 18:08:22 +08:00
|
|
|
} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)
|
2012-05-04 18:03:54 +08:00
|
|
|
&& (dep->number == 0)) {
|
2013-03-08 15:42:50 +08:00
|
|
|
u32 transfer_size;
|
|
|
|
u32 maxpacket;
|
2012-05-04 18:03:54 +08:00
|
|
|
|
2011-12-19 17:32:34 +08:00
|
|
|
ret = usb_gadget_map_request(&dwc->gadget, &req->request,
|
2012-05-04 18:03:54 +08:00
|
|
|
dep->number);
|
2011-12-19 17:32:34 +08:00
|
|
|
if (ret) {
|
|
|
|
dev_dbg(dwc->dev, "failed to map request\n");
|
|
|
|
return;
|
|
|
|
}
|
2011-08-28 03:28:36 +08:00
|
|
|
|
2012-05-24 14:19:31 +08:00
|
|
|
WARN_ON(req->request.length > DWC3_EP0_BOUNCE_SIZE);
|
2011-08-28 03:28:36 +08:00
|
|
|
|
2013-03-08 15:42:50 +08:00
|
|
|
maxpacket = dep->endpoint.maxpacket;
|
|
|
|
transfer_size = roundup(req->request.length, maxpacket);
|
2012-05-04 18:03:54 +08:00
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
dwc->ep0_bounced = true;
|
|
|
|
|
|
|
|
/*
|
2012-05-24 14:19:31 +08:00
|
|
|
* REVISIT in case request length is bigger than
|
|
|
|
* DWC3_EP0_BOUNCE_SIZE we will need two chained
|
|
|
|
* TRBs to handle the transfer.
|
2011-08-28 03:28:36 +08:00
|
|
|
*/
|
2012-05-04 18:03:54 +08:00
|
|
|
ret = dwc3_ep0_start_trans(dwc, dep->number,
|
|
|
|
dwc->ep0_bounce_addr, transfer_size,
|
2011-08-28 03:28:36 +08:00
|
|
|
DWC3_TRBCTL_CONTROL_DATA);
|
|
|
|
} else {
|
2011-12-19 17:32:34 +08:00
|
|
|
ret = usb_gadget_map_request(&dwc->gadget, &req->request,
|
2012-05-04 18:03:54 +08:00
|
|
|
dep->number);
|
2011-12-19 17:32:34 +08:00
|
|
|
if (ret) {
|
|
|
|
dev_dbg(dwc->dev, "failed to map request\n");
|
|
|
|
return;
|
|
|
|
}
|
2011-08-28 03:28:36 +08:00
|
|
|
|
2012-05-04 18:03:54 +08:00
|
|
|
ret = dwc3_ep0_start_trans(dwc, dep->number, req->request.dma,
|
|
|
|
req->request.length, DWC3_TRBCTL_CONTROL_DATA);
|
2011-08-28 03:28:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
WARN_ON(ret < 0);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
|
2011-11-02 20:30:44 +08:00
|
|
|
static int dwc3_ep0_start_control_status(struct dwc3_ep *dep)
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
{
|
2011-11-02 20:30:44 +08:00
|
|
|
struct dwc3 *dwc = dep->dwc;
|
2011-08-28 03:28:36 +08:00
|
|
|
u32 type;
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
type = dwc->three_stage_setup ? DWC3_TRBCTL_CONTROL_STATUS3
|
|
|
|
: DWC3_TRBCTL_CONTROL_STATUS2;
|
|
|
|
|
2011-11-02 20:30:44 +08:00
|
|
|
return dwc3_ep0_start_trans(dwc, dep->number,
|
2011-08-28 03:28:36 +08:00
|
|
|
dwc->ctrl_req_addr, 0, type);
|
2011-11-02 20:30:44 +08:00
|
|
|
}
|
2011-08-28 03:28:36 +08:00
|
|
|
|
2012-05-21 19:22:41 +08:00
|
|
|
static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)
|
2011-11-02 20:30:44 +08:00
|
|
|
{
|
2012-01-19 00:04:09 +08:00
|
|
|
if (dwc->resize_fifos) {
|
|
|
|
dev_dbg(dwc->dev, "starting to resize fifos\n");
|
|
|
|
dwc3_gadget_resize_tx_fifos(dwc);
|
|
|
|
dwc->resize_fifos = 0;
|
|
|
|
}
|
|
|
|
|
2011-11-02 20:30:44 +08:00
|
|
|
WARN_ON(dwc3_ep0_start_control_status(dep));
|
2011-08-28 03:28:36 +08:00
|
|
|
}
|
|
|
|
|
2012-05-21 19:22:41 +08:00
|
|
|
static void dwc3_ep0_do_control_status(struct dwc3 *dwc,
|
|
|
|
const struct dwc3_event_depevt *event)
|
|
|
|
{
|
|
|
|
struct dwc3_ep *dep = dwc->eps[event->endpoint_number];
|
|
|
|
|
|
|
|
__dwc3_ep0_do_control_status(dwc, dep);
|
|
|
|
}
|
|
|
|
|
2012-07-19 14:26:59 +08:00
|
|
|
static void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)
|
|
|
|
{
|
|
|
|
struct dwc3_gadget_ep_cmd_params params;
|
|
|
|
u32 cmd;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (!dep->resource_index)
|
|
|
|
return;
|
|
|
|
|
|
|
|
cmd = DWC3_DEPCMD_ENDTRANSFER;
|
|
|
|
cmd |= DWC3_DEPCMD_CMDIOC;
|
|
|
|
cmd |= DWC3_DEPCMD_PARAM(dep->resource_index);
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, ¶ms);
|
|
|
|
WARN_ON_ONCE(ret);
|
|
|
|
dep->resource_index = 0;
|
|
|
|
}
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
|
|
|
|
const struct dwc3_event_depevt *event)
|
|
|
|
{
|
2011-10-14 20:11:49 +08:00
|
|
|
dwc->setup_packet_pending = true;
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
switch (event->status) {
|
|
|
|
case DEPEVT_STATUS_CONTROL_DATA:
|
|
|
|
dev_vdbg(dwc->dev, "Control Data\n");
|
2011-08-30 20:52:17 +08:00
|
|
|
|
2011-09-08 23:27:33 +08:00
|
|
|
/*
|
2012-07-19 14:26:59 +08:00
|
|
|
* We already have a DATA transfer in the controller's cache,
|
|
|
|
* if we receive a XferNotReady(DATA) we will ignore it, unless
|
|
|
|
* it's for the wrong direction.
|
2011-09-08 23:27:33 +08:00
|
|
|
*
|
2012-07-19 14:26:59 +08:00
|
|
|
* In that case, we must issue END_TRANSFER command to the Data
|
|
|
|
* Phase we already have started and issue SetStall on the
|
|
|
|
* control endpoint.
|
2011-09-08 23:27:33 +08:00
|
|
|
*/
|
|
|
|
if (dwc->ep0_expect_in != event->endpoint_number) {
|
2012-07-19 14:26:59 +08:00
|
|
|
struct dwc3_ep *dep = dwc->eps[dwc->ep0_expect_in];
|
|
|
|
|
2011-09-08 23:27:33 +08:00
|
|
|
dev_vdbg(dwc->dev, "Wrong direction for Data phase\n");
|
2012-07-19 14:26:59 +08:00
|
|
|
dwc3_ep0_end_control_data(dwc, dep);
|
2011-09-08 23:27:33 +08:00
|
|
|
dwc3_ep0_stall_and_restart(dwc);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
break;
|
2011-08-30 20:52:17 +08:00
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
case DEPEVT_STATUS_CONTROL_STATUS:
|
2012-07-23 14:09:32 +08:00
|
|
|
if (dwc->ep0_next_event != DWC3_EP0_NRDY_STATUS)
|
|
|
|
return;
|
|
|
|
|
2011-08-28 03:28:36 +08:00
|
|
|
dev_vdbg(dwc->dev, "Control Status\n");
|
2011-08-30 20:52:17 +08:00
|
|
|
|
2011-11-02 20:30:44 +08:00
|
|
|
dwc->ep0state = EP0_STATUS_PHASE;
|
|
|
|
|
2011-11-02 20:30:45 +08:00
|
|
|
if (dwc->delayed_status) {
|
|
|
|
WARN_ON_ONCE(event->endpoint_number != 1);
|
|
|
|
dev_vdbg(dwc->dev, "Mass Storage delayed status\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2012-05-21 19:22:41 +08:00
|
|
|
dwc3_ep0_do_control_status(dwc, event);
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void dwc3_ep0_interrupt(struct dwc3 *dwc,
|
2011-11-04 18:40:05 +08:00
|
|
|
const struct dwc3_event_depevt *event)
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
{
|
|
|
|
u8 epnum = event->endpoint_number;
|
|
|
|
|
|
|
|
dev_dbg(dwc->dev, "%s while ep%d%s in state '%s'\n",
|
|
|
|
dwc3_ep_event_string(event->endpoint_event),
|
2011-09-30 15:58:40 +08:00
|
|
|
epnum >> 1, (epnum & 1) ? "in" : "out",
|
usb: Introduce DesignWare USB3 DRD Driver
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.
Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.
The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.
More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.
While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.
[1] http://marc.info/?l=linux-usb&m=131341992020339&w=2
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-19 23:10:58 +08:00
|
|
|
dwc3_ep0_state_string(dwc->ep0state));
|
|
|
|
|
|
|
|
switch (event->endpoint_event) {
|
|
|
|
case DWC3_DEPEVT_XFERCOMPLETE:
|
|
|
|
dwc3_ep0_xfer_complete(dwc, event);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case DWC3_DEPEVT_XFERNOTREADY:
|
|
|
|
dwc3_ep0_xfernotready(dwc, event);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case DWC3_DEPEVT_XFERINPROGRESS:
|
|
|
|
case DWC3_DEPEVT_RXTXFIFOEVT:
|
|
|
|
case DWC3_DEPEVT_STREAMEVT:
|
|
|
|
case DWC3_DEPEVT_EPCMDCMPLT:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|