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kernel_linux
提交 1be025d3 编写于 作者: L Linus Torvalds
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Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 

* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (260 commits)
  usb: renesas_usbhs: fixup inconsistent return from usbhs_pkt_push()
  usb/isp1760: Allow to optionally trigger low-level chip reset via GPIOLIB.
  USB: gadget: midi: memory leak in f_midi_bind_config()
  USB: gadget: midi: fix range check in f_midi_out_open()
  QE/FHCI: fixed the CONTROL bug
  usb: renesas_usbhs: tidyup for smatch warnings
  USB: Fix USB Kconfig dependency problem on 85xx/QoirQ platforms
  EHCI: workaround for MosChip controller bug
  usb: gadget: file_storage: fix race on unloading
  USB: ftdi_sio.c: Use ftdi async_icount structure for TIOCMIWAIT, as in other drivers
  USB: ftdi_sio.c:Fill MSR fields of the ftdi async_icount structure
  USB: ftdi_sio.c: Fill LSR fields of the ftdi async_icount structure
  USB: ftdi_sio.c:Fill TX field of the ftdi async_icount structure
  USB: ftdi_sio.c: Fill the RX field of the ftdi async_icount structure
  USB: ftdi_sio.c: Basic icount infrastructure for ftdi_sio
  usb/isp1760: Let OF bindings depend on general CONFIG_OF instead of PPC_OF .
  USB: ftdi_sio: Support TI/Luminary Micro Stellaris BD-ICDI Board
  USB: Fix runtime wakeup on OHCI
  xHCI/USB: Make xHCI driver have a BOS descriptor.
  usb: gadget: add new usb gadget for ACM and mass storage
  ...
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Documentation/ABI/testing/sysfs-bus-pci-drivers-ehci_hcd 0 → 100644
浏览文件 @ 1be025d3
What: /sys/bus/pci/drivers/ehci_hcd/.../companion
/sys/bus/usb/devices/usbN/../companion
Date: January 2007
KernelVersion: 2.6.21
Contact: Alan Stern <stern@rowland.harvard.edu>
Description:
PCI-based EHCI USB controllers (i.e., high-speed USB-2.0
controllers) are often implemented along with a set of
"companion" full/low-speed USB-1.1 controllers. When a
high-speed device is plugged in, the connection is routed
to the EHCI controller; when a full- or low-speed device
is plugged in, the connection is routed to the companion
controller.
Sometimes you want to force a high-speed device to connect
at full speed, which can be accomplished by forcing the
connection to be routed to the companion controller.
That's what this file does. Writing a port number to the
file causes connections on that port to be routed to the
companion controller, and writing the negative of a port
number returns the port to normal operation.
For example: To force the high-speed device attached to
port 4 on bus 2 to run at full speed:
echo 4 >/sys/bus/usb/devices/usb2/../companion
To return the port to high-speed operation:
echo -4 >/sys/bus/usb/devices/usb2/../companion
Reading the file gives the list of ports currently forced
to the companion controller.
Note: Some EHCI controllers do not have companions; they
may contain an internal "transaction translator" or they
may be attached directly to a "rate-matching hub". This
mechanism will not work with such controllers. Also, it
cannot be used to force a port on a high-speed hub to
connect at full speed.
Note: When this file was first added, it appeared in a
different sysfs directory. The location given above is
correct for 2.6.35 (and probably several earlier kernel
versions as well).
Documentation/ABI/testing/sysfs-bus-usb
浏览文件 @ 1be025d3
......@@ -142,3 +142,18 @@ Description:
such devices.
Users:
usb_modeswitch
What: /sys/bus/usb/devices/.../power/usb2_hardware_lpm
Date: September 2011
Contact: Andiry Xu <andiry.xu@amd.com>
Description:
If CONFIG_USB_SUSPEND is set and a USB 2.0 lpm-capable device
is plugged in to a xHCI host which support link PM, it will
perform a LPM test; if the test is passed and host supports
USB2 hardware LPM (xHCI 1.0 feature), USB2 hardware LPM will
be enabled for the device and the USB device directory will
contain a file named power/usb2_hardware_lpm. The file holds
a string value (enable or disable) indicating whether or not
USB2 hardware LPM is enabled for the device. Developer can
write y/Y/1 or n/N/0 to the file to enable/disable the
feature.
Documentation/usb/dwc3.txt 0 → 100644
浏览文件 @ 1be025d3
TODO
~~~~~~
Please pick something while reading :)
- Convert interrupt handler to per-ep-thread-irq
As it turns out some DWC3-commands ~1ms to complete. Currently we spin
until the command completes which is bad.
Implementation idea:
- dwc core implements a demultiplexing irq chip for interrupts per
endpoint. The interrupt numbers are allocated during probe and belong
to the device. If MSI provides per-endpoint interrupt this dummy
interrupt chip can be replaced with "real" interrupts.
- interrupts are requested / allocated on usb_ep_enable() and removed on
usb_ep_disable(). Worst case are 32 interrupts, the lower limit is two
for ep0/1.
- dwc3_send_gadget_ep_cmd() will sleep in wait_for_completion_timeout()
until the command completes.
- the interrupt handler is split into the following pieces:
- primary handler of the device
goes through every event and calls generic_handle_irq() for event
it. On return from generic_handle_irq() in acknowledges the event
counter so interrupt goes away (eventually).
- threaded handler of the device
none
- primary handler of the EP-interrupt
reads the event and tries to process it. Everything that requries
sleeping is handed over to the Thread. The event is saved in an
per-endpoint data-structure.
We probably have to pay attention not to process events once we
handed something to thread so we don't process event X prio Y
where X > Y.
- threaded handler of the EP-interrupt
handles the remaining EP work which might sleep such as waiting
for command completion.
Latency:
There should be no increase in latency since the interrupt-thread has a
high priority and will be run before an average task in user land
(except the user changed priorities).
Documentation/usb/power-management.txt
浏览文件 @ 1be025d3
......@@ -487,3 +487,29 @@ succeed, it may still remain active and thus cause the system to
resume as soon as the system suspend is complete. Or the remote
wakeup may fail and get lost. Which outcome occurs depends on timing
and on the hardware and firmware design.
xHCI hardware link PM
---------------------
xHCI host controller provides hardware link power management to usb2.0
(xHCI 1.0 feature) and usb3.0 devices which support link PM. By
enabling hardware LPM, the host can automatically put the device into
lower power state(L1 for usb2.0 devices, or U1/U2 for usb3.0 devices),
which state device can enter and resume very quickly.
The user interface for controlling USB2 hardware LPM is located in the
power/ subdirectory of each USB device's sysfs directory, that is, in
/sys/bus/usb/devices/.../power/ where "..." is the device's ID. The
relevant attribute files is usb2_hardware_lpm.
power/usb2_hardware_lpm
When a USB2 device which support LPM is plugged to a
xHCI host root hub which support software LPM, the
host will run a software LPM test for it; if the device
enters L1 state and resume successfully and the host
supports USB2 hardware LPM, this file will show up and
driver will enable hardware LPM for the device. You
can write y/Y/1 or n/N/0 to the file to enable/disable
USB2 hardware LPM manually. This is for test purpose mainly.
MAINTAINERS
浏览文件 @ 1be025d3
......@@ -2136,6 +2136,14 @@ M: Matthew Garrett <mjg59@srcf.ucam.org>
S: Maintained
F: drivers/platform/x86/dell-wmi.c
DESIGNWARE USB3 DRD IP DRIVER
M: Felipe Balbi <balbi@ti.com>
L: linux-usb@vger.kernel.org
L: linux-omap@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git
S: Maintained
F: drivers/usb/dwc3/
DEVICE NUMBER REGISTRY
M: Torben Mathiasen <device@lanana.org>
W: http://lanana.org/docs/device-list/index.html
......
arch/arm/mach-mmp/include/mach/pxa168.h
浏览文件 @ 1be025d3
......@@ -35,6 +35,13 @@ extern struct pxa_device_desc pxa168_device_fb;
extern struct pxa_device_desc pxa168_device_keypad;
extern struct pxa_device_desc pxa168_device_eth;
struct pxa168_usb_pdata {
/* If NULL, default phy init routine for PXA168 would be called */
int (*phy_init)(void __iomem *usb_phy_reg_base);
};
/* pdata can be NULL */
int __init pxa168_add_usb_host(struct pxa168_usb_pdata *pdata);
static inline int pxa168_add_uart(int id)
{
struct pxa_device_desc *d = NULL;
......
arch/arm/mach-mmp/pxa168.c
浏览文件 @ 1be025d3
......@@ -25,6 +25,9 @@
#include <mach/dma.h>
#include <mach/devices.h>
#include <mach/mfp.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <mach/pxa168.h>
#include "common.h"
#include "clock.h"
......@@ -83,6 +86,7 @@ static APBC_CLK(keypad, PXA168_KPC, 0, 32000);
static APMU_CLK(nand, NAND, 0x19b, 156000000);
static APMU_CLK(lcd, LCD, 0x7f, 312000000);
static APMU_CLK(eth, ETH, 0x09, 0);
static APMU_CLK(usb, USB, 0x12, 0);
/* device and clock bindings */
static struct clk_lookup pxa168_clkregs[] = {
......@@ -104,6 +108,7 @@ static struct clk_lookup pxa168_clkregs[] = {
INIT_CLKREG(&clk_lcd, "pxa168-fb", NULL),
INIT_CLKREG(&clk_keypad, "pxa27x-keypad", NULL),
INIT_CLKREG(&clk_eth, "pxa168-eth", "MFUCLK"),
INIT_CLKREG(&clk_usb, "pxa168-ehci", "PXA168-USBCLK"),
};
static int __init pxa168_init(void)
......@@ -169,3 +174,44 @@ PXA168_DEVICE(ssp5, "pxa168-ssp", 4, SSP5, 0xd4021000, 0x40, 60, 61);
PXA168_DEVICE(fb, "pxa168-fb", -1, LCD, 0xd420b000, 0x1c8);
PXA168_DEVICE(keypad, "pxa27x-keypad", -1, KEYPAD, 0xd4012000, 0x4c);
PXA168_DEVICE(eth, "pxa168-eth", -1, MFU, 0xc0800000, 0x0fff);
struct resource pxa168_usb_host_resources[] = {
/* USB Host conroller register base */
[0] = {
.start = 0xd4209000,
.end = 0xd4209000 + 0x200,
.flags = IORESOURCE_MEM,
.name = "pxa168-usb-host",
},
/* USB PHY register base */
[1] = {
.start = 0xd4206000,
.end = 0xd4206000 + 0xff,
.flags = IORESOURCE_MEM,
.name = "pxa168-usb-phy",
},
[2] = {
.start = IRQ_PXA168_USB2,
.end = IRQ_PXA168_USB2,
.flags = IORESOURCE_IRQ,
},
};
static u64 pxa168_usb_host_dmamask = DMA_BIT_MASK(32);
struct platform_device pxa168_device_usb_host = {
.name = "pxa168-ehci",
.id = -1,
.dev = {
.dma_mask = &pxa168_usb_host_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(pxa168_usb_host_resources),
.resource = pxa168_usb_host_resources,
};
int __init pxa168_add_usb_host(struct pxa168_usb_pdata *pdata)
{
pxa168_device_usb_host.dev.platform_data = pdata;
return platform_device_register(&pxa168_device_usb_host);
}
arch/arm/mach-omap2/Makefile
浏览文件 @ 1be025d3
......@@ -242,14 +242,11 @@ obj-$(CONFIG_MACH_IGEP0020) += board-igep0020.o \
obj-$(CONFIG_MACH_OMAP3_TOUCHBOOK) += board-omap3touchbook.o \
hsmmc.o
obj-$(CONFIG_MACH_OMAP_4430SDP) += board-4430sdp.o \
hsmmc.o \
omap_phy_internal.o
hsmmc.o
obj-$(CONFIG_MACH_OMAP4_PANDA) += board-omap4panda.o \
hsmmc.o \
omap_phy_internal.o
hsmmc.o
obj-$(CONFIG_MACH_OMAP3517EVM) += board-am3517evm.o \
omap_phy_internal.o \
obj-$(CONFIG_MACH_OMAP3517EVM) += board-am3517evm.o
obj-$(CONFIG_MACH_CRANEBOARD) += board-am3517crane.o
......@@ -260,6 +257,8 @@ obj-$(CONFIG_MACH_TI8168EVM) += board-ti8168evm.o
usbfs-$(CONFIG_ARCH_OMAP_OTG) := usb-fs.o
obj-y += $(usbfs-m) $(usbfs-y)
obj-y += usb-musb.o
obj-y += omap_phy_internal.o
obj-$(CONFIG_MACH_OMAP2_TUSB6010) += usb-tusb6010.o
obj-y += usb-host.o
......
arch/arm/mach-shmobile/board-mackerel.c
浏览文件 @ 1be025d3
......@@ -810,6 +810,7 @@ static struct usbhs_private usbhs1_private = {
},
.driver_param = {
.buswait_bwait = 4,
.has_otg = 1,
.pipe_type = usbhs1_pipe_cfg,
.pipe_size = ARRAY_SIZE(usbhs1_pipe_cfg),
.d0_tx_id = SHDMA_SLAVE_USB1_TX,
......
drivers/usb/Kconfig
浏览文件 @ 1be025d3
......@@ -12,6 +12,11 @@ menuconfig USB_SUPPORT
if USB_SUPPORT
config USB_COMMON
tristate
default y
depends on USB || USB_GADGET
# Host-side USB depends on having a host controller
# NOTE: dummy_hcd is always an option, but it's ignored here ...
# NOTE: SL-811 option should be board-specific ...
......@@ -19,6 +24,7 @@ config USB_ARCH_HAS_HCD
boolean
default y if USB_ARCH_HAS_OHCI
default y if USB_ARCH_HAS_EHCI
default y if USB_ARCH_HAS_XHCI
default y if PCMCIA && !M32R # sl811_cs
default y if ARM # SL-811
default y if BLACKFIN # SL-811
......@@ -54,7 +60,7 @@ config USB_ARCH_HAS_OHCI
# some non-PCI hcds implement EHCI
config USB_ARCH_HAS_EHCI
boolean
default y if PPC_83xx
default y if FSL_SOC
default y if PPC_MPC512x
default y if SOC_AU1200
default y if ARCH_IXP4XX
......@@ -69,6 +75,12 @@ config USB_ARCH_HAS_EHCI
default y if ARCH_MSM
default y if MICROBLAZE
default y if SPARC_LEON
default y if ARCH_MMP
default PCI
# some non-PCI HCDs implement xHCI
config USB_ARCH_HAS_XHCI
boolean
default PCI
# ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.
......@@ -110,6 +122,8 @@ config USB
source "drivers/usb/core/Kconfig"
source "drivers/usb/dwc3/Kconfig"
source "drivers/usb/mon/Kconfig"
source "drivers/usb/wusbcore/Kconfig"
......
drivers/usb/Makefile
浏览文件 @ 1be025d3
......@@ -6,6 +6,8 @@
obj-$(CONFIG_USB) += core/
obj-$(CONFIG_USB_DWC3) += dwc3/
obj-$(CONFIG_USB_MON) += mon/
obj-$(CONFIG_PCI) += host/
......@@ -51,3 +53,5 @@ obj-$(CONFIG_USB_MUSB_HDRC) += musb/
obj-$(CONFIG_USB_RENESAS_USBHS) += renesas_usbhs/
obj-$(CONFIG_USB_OTG_UTILS) += otg/
obj-$(CONFIG_USB_GADGET) += gadget/
obj-$(CONFIG_USB_COMMON) += usb-common.o
drivers/usb/class/cdc-acm.c
浏览文件 @ 1be025d3
......@@ -1058,11 +1058,11 @@ static int acm_probe(struct usb_interface *intf,
goto alloc_fail;
}
ctrlsize = le16_to_cpu(epctrl->wMaxPacketSize);
readsize = le16_to_cpu(epread->wMaxPacketSize) *
ctrlsize = usb_endpoint_maxp(epctrl);
readsize = usb_endpoint_maxp(epread) *
(quirks == SINGLE_RX_URB ? 1 : 2);
acm->combined_interfaces = combined_interfaces;
acm->writesize = le16_to_cpu(epwrite->wMaxPacketSize) * 20;
acm->writesize = usb_endpoint_maxp(epwrite) * 20;
acm->control = control_interface;
acm->data = data_interface;
acm->minor = minor;
......@@ -1534,6 +1534,9 @@ static const struct usb_device_id acm_ids[] = {
{ NOKIA_PCSUITE_ACM_INFO(0x03cd), }, /* Nokia C7 */
{ SAMSUNG_PCSUITE_ACM_INFO(0x6651), }, /* Samsung GTi8510 (INNOV8) */
/* Support for Owen devices */
{ USB_DEVICE(0x03eb, 0x0030), }, /* Owen SI30 */
/* NOTE: non-Nokia COMM/ACM/0xff is likely MSFT RNDIS... NOT a modem! */
/* Support Lego NXT using pbLua firmware */
......
drivers/usb/class/cdc-wdm.c
浏览文件 @ 1be025d3
......@@ -682,7 +682,7 @@ static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id)
if (!ep || !usb_endpoint_is_int_in(ep))
goto err;
desc->wMaxPacketSize = le16_to_cpu(ep->wMaxPacketSize);
desc->wMaxPacketSize = usb_endpoint_maxp(ep);
desc->bMaxPacketSize0 = udev->descriptor.bMaxPacketSize0;
desc->orq = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
......
drivers/usb/class/usbtmc.c
浏览文件 @ 1be025d3
......@@ -186,8 +186,7 @@ static int usbtmc_ioctl_abort_bulk_in(struct usbtmc_device_data *data)
for (n = 0; n < current_setting->desc.bNumEndpoints; n++)
if (current_setting->endpoint[n].desc.bEndpointAddress ==
data->bulk_in)
max_size = le16_to_cpu(current_setting->endpoint[n].
desc.wMaxPacketSize);
max_size = usb_endpoint_maxp(&current_setting->endpoint[n].desc);
if (max_size == 0) {
dev_err(dev, "Couldn't get wMaxPacketSize\n");
......@@ -636,7 +635,7 @@ static int usbtmc_ioctl_clear(struct usbtmc_device_data *data)
for (n = 0; n < current_setting->desc.bNumEndpoints; n++) {
desc = &current_setting->endpoint[n].desc;
if (desc->bEndpointAddress == data->bulk_in)
max_size = le16_to_cpu(desc->wMaxPacketSize);
max_size = usb_endpoint_maxp(desc);
}
if (max_size == 0) {
......
drivers/usb/core/config.c
浏览文件 @ 1be025d3
......@@ -124,9 +124,9 @@ static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
if (usb_endpoint_xfer_isoc(&ep->desc))
max_tx = (desc->bMaxBurst + 1) * (desc->bmAttributes + 1) *
le16_to_cpu(ep->desc.wMaxPacketSize);
usb_endpoint_maxp(&ep->desc);
else if (usb_endpoint_xfer_int(&ep->desc))
max_tx = le16_to_cpu(ep->desc.wMaxPacketSize) *
max_tx = usb_endpoint_maxp(&ep->desc) *
(desc->bMaxBurst + 1);
else
max_tx = 999999;
......@@ -241,7 +241,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
cfgno, inum, asnum, d->bEndpointAddress);
endpoint->desc.bmAttributes = USB_ENDPOINT_XFER_INT;
endpoint->desc.bInterval = 1;
if (le16_to_cpu(endpoint->desc.wMaxPacketSize) > 8)
if (usb_endpoint_maxp(&endpoint->desc) > 8)
endpoint->desc.wMaxPacketSize = cpu_to_le16(8);
}
......@@ -254,7 +254,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
&& usb_endpoint_xfer_bulk(d)) {
unsigned maxp;
maxp = le16_to_cpu(endpoint->desc.wMaxPacketSize) & 0x07ff;
maxp = usb_endpoint_maxp(&endpoint->desc) & 0x07ff;
if (maxp != 512)
dev_warn(ddev, "config %d interface %d altsetting %d "
"bulk endpoint 0x%X has invalid maxpacket %d\n",
......@@ -755,3 +755,106 @@ int usb_get_configuration(struct usb_device *dev)
dev_err(ddev, "out of memory\n");
return result;
}
void usb_release_bos_descriptor(struct usb_device *dev)
{
if (dev->bos) {
kfree(dev->bos->desc);
kfree(dev->bos);
dev->bos = NULL;
}
}
/* Get BOS descriptor set */
int usb_get_bos_descriptor(struct usb_device *dev)
{
struct device *ddev = &dev->dev;
struct usb_bos_descriptor *bos;
struct usb_dev_cap_header *cap;
unsigned char *buffer;
int length, total_len, num, i;
int ret;
bos = kzalloc(sizeof(struct usb_bos_descriptor), GFP_KERNEL);
if (!bos)
return -ENOMEM;
/* Get BOS descriptor */
ret = usb_get_descriptor(dev, USB_DT_BOS, 0, bos, USB_DT_BOS_SIZE);
if (ret < USB_DT_BOS_SIZE) {
dev_err(ddev, "unable to get BOS descriptor\n");
if (ret >= 0)
ret = -ENOMSG;
kfree(bos);
return ret;
}
length = bos->bLength;
total_len = le16_to_cpu(bos->wTotalLength);
num = bos->bNumDeviceCaps;
kfree(bos);
if (total_len < length)
return -EINVAL;
dev->bos = kzalloc(sizeof(struct usb_host_bos), GFP_KERNEL);
if (!dev->bos)
return -ENOMEM;
/* Now let's get the whole BOS descriptor set */
buffer = kzalloc(total_len, GFP_KERNEL);
if (!buffer) {
ret = -ENOMEM;
goto err;
}
dev->bos->desc = (struct usb_bos_descriptor *)buffer;
ret = usb_get_descriptor(dev, USB_DT_BOS, 0, buffer, total_len);
if (ret < total_len) {
dev_err(ddev, "unable to get BOS descriptor set\n");
if (ret >= 0)
ret = -ENOMSG;
goto err;
}
total_len -= length;
for (i = 0; i < num; i++) {
buffer += length;
cap = (struct usb_dev_cap_header *)buffer;
length = cap->bLength;
if (total_len < length)
break;
total_len -= length;
if (cap->bDescriptorType != USB_DT_DEVICE_CAPABILITY) {
dev_warn(ddev, "descriptor type invalid, skip\n");
continue;
}
switch (cap->bDevCapabilityType) {
case USB_CAP_TYPE_WIRELESS_USB:
/* Wireless USB cap descriptor is handled by wusb */
break;
case USB_CAP_TYPE_EXT:
dev->bos->ext_cap =
(struct usb_ext_cap_descriptor *)buffer;
break;
case USB_SS_CAP_TYPE:
dev->bos->ss_cap =
(struct usb_ss_cap_descriptor *)buffer;
break;
case CONTAINER_ID_TYPE:
dev->bos->ss_id =
(struct usb_ss_container_id_descriptor *)buffer;
break;
default:
break;
}
}
return 0;
err:
usb_release_bos_descriptor(dev);
return ret;
}
drivers/usb/core/devices.c
浏览文件 @ 1be025d3
......@@ -190,7 +190,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
dir = usb_endpoint_dir_in(desc) ? 'I' : 'O';
if (speed == USB_SPEED_HIGH) {
switch (le16_to_cpu(desc->wMaxPacketSize) & (0x03 << 11)) {
switch (usb_endpoint_maxp(desc) & (0x03 << 11)) {
case 1 << 11:
bandwidth = 2; break;
case 2 << 11:
......@@ -240,7 +240,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
start += sprintf(start, format_endpt, desc->bEndpointAddress, dir,
desc->bmAttributes, type,
(le16_to_cpu(desc->wMaxPacketSize) & 0x07ff) *
(usb_endpoint_maxp(desc) & 0x07ff) *
bandwidth,
interval, unit);
return start;
......
drivers/usb/core/devio.c
浏览文件 @ 1be025d3
......@@ -46,6 +46,7 @@
#include <linux/cdev.h>
#include <linux/notifier.h>
#include <linux/security.h>
#include <linux/user_namespace.h>
#include <asm/uaccess.h>
#include <asm/byteorder.h>
#include <linux/moduleparam.h>
......@@ -68,7 +69,7 @@ struct dev_state {
wait_queue_head_t wait; /* wake up if a request completed */
unsigned int discsignr;
struct pid *disc_pid;
uid_t disc_uid, disc_euid;
const struct cred *cred;
void __user *disccontext;
unsigned long ifclaimed;
u32 secid;
......@@ -79,7 +80,7 @@ struct async {
struct list_head asynclist;
struct dev_state *ps;
struct pid *pid;
uid_t uid, euid;
const struct cred *cred;
unsigned int signr;
unsigned int ifnum;
void __user *userbuffer;
......@@ -248,6 +249,7 @@ static struct async *alloc_async(unsigned int numisoframes)
static void free_async(struct async *as)
{
put_pid(as->pid);
put_cred(as->cred);
kfree(as->urb->transfer_buffer);
kfree(as->urb->setup_packet);
usb_free_urb(as->urb);
......@@ -393,9 +395,8 @@ static void async_completed(struct urb *urb)
struct dev_state *ps = as->ps;
struct siginfo sinfo;
struct pid *pid = NULL;
uid_t uid = 0;
uid_t euid = 0;
u32 secid = 0;
const struct cred *cred = NULL;
int signr;
spin_lock(&ps->lock);
......@@ -407,9 +408,8 @@ static void async_completed(struct urb *urb)
sinfo.si_errno = as->status;
sinfo.si_code = SI_ASYNCIO;
sinfo.si_addr = as->userurb;
pid = as->pid;
uid = as->uid;
euid = as->euid;
pid = get_pid(as->pid);
cred = get_cred(as->cred);
secid = as->secid;
}
snoop(&urb->dev->dev, "urb complete\n");
......@@ -422,9 +422,11 @@ static void async_completed(struct urb *urb)
cancel_bulk_urbs(ps, as->bulk_addr);
spin_unlock(&ps->lock);
if (signr)
kill_pid_info_as_uid(sinfo.si_signo, &sinfo, pid, uid,
euid, secid);
if (signr) {
kill_pid_info_as_cred(sinfo.si_signo, &sinfo, pid, cred, secid);
put_pid(pid);
put_cred(cred);
}
wake_up(&ps->wait);
}
......@@ -607,9 +609,10 @@ static int findintfep(struct usb_device *dev, unsigned int ep)
}
static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype,
unsigned int index)
unsigned int request, unsigned int index)
{
int ret = 0;
struct usb_host_interface *alt_setting;
if (ps->dev->state != USB_STATE_UNAUTHENTICATED
&& ps->dev->state != USB_STATE_ADDRESS
......@@ -618,6 +621,19 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype,
if (USB_TYPE_VENDOR == (USB_TYPE_MASK & requesttype))
return 0;
/*
* check for the special corner case 'get_device_id' in the printer
* class specification, where wIndex is (interface << 8 | altsetting)
* instead of just interface
*/
if (requesttype == 0xa1 && request == 0) {
alt_setting = usb_find_alt_setting(ps->dev->actconfig,
index >> 8, index & 0xff);
if (alt_setting
&& alt_setting->desc.bInterfaceClass == USB_CLASS_PRINTER)
index >>= 8;
}
index &= 0xff;
switch (requesttype & USB_RECIP_MASK) {
case USB_RECIP_ENDPOINT:
......@@ -656,7 +672,6 @@ static int usbdev_open(struct inode *inode, struct file *file)
{
struct usb_device *dev = NULL;
struct dev_state *ps;
const struct cred *cred = current_cred();
int ret;
ret = -ENOMEM;
......@@ -706,8 +721,7 @@ static int usbdev_open(struct inode *inode, struct file *file)
init_waitqueue_head(&ps->wait);
ps->discsignr = 0;
ps->disc_pid = get_pid(task_pid(current));
ps->disc_uid = cred->uid;
ps->disc_euid = cred->euid;
ps->cred = get_current_cred();
ps->disccontext = NULL;
ps->ifclaimed = 0;
security_task_getsecid(current, &ps->secid);
......@@ -749,6 +763,7 @@ static int usbdev_release(struct inode *inode, struct file *file)
usb_unlock_device(dev);
usb_put_dev(dev);
put_pid(ps->disc_pid);
put_cred(ps->cred);
as = async_getcompleted(ps);
while (as) {
......@@ -770,7 +785,8 @@ static int proc_control(struct dev_state *ps, void __user *arg)
if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
return -EFAULT;
ret = check_ctrlrecip(ps, ctrl.bRequestType, ctrl.wIndex);
ret = check_ctrlrecip(ps, ctrl.bRequestType, ctrl.bRequest,
ctrl.wIndex);
if (ret)
return ret;
wLength = ctrl.wLength; /* To suppress 64k PAGE_SIZE warning */
......@@ -1048,7 +1064,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
struct usb_host_endpoint *ep;
struct async *as;
struct usb_ctrlrequest *dr = NULL;
const struct cred *cred = current_cred();
unsigned int u, totlen, isofrmlen;
int ret, ifnum = -1;
int is_in;
......@@ -1100,7 +1115,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
kfree(dr);
return -EINVAL;
}
ret = check_ctrlrecip(ps, dr->bRequestType,
ret = check_ctrlrecip(ps, dr->bRequestType, dr->bRequest,
le16_to_cpup(&dr->wIndex));
if (ret) {
kfree(dr);
......@@ -1262,8 +1277,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
as->signr = uurb->signr;
as->ifnum = ifnum;
as->pid = get_pid(task_pid(current));
as->uid = cred->uid;
as->euid = cred->euid;
as->cred = get_current_cred();
security_task_getsecid(current, &as->secid);
if (!is_in && uurb->buffer_length > 0) {
if (copy_from_user(as->urb->transfer_buffer, uurb->buffer,
......@@ -1981,9 +1995,8 @@ static void usbdev_remove(struct usb_device *udev)
sinfo.si_errno = EPIPE;
sinfo.si_code = SI_ASYNCIO;
sinfo.si_addr = ps->disccontext;
kill_pid_info_as_uid(ps->discsignr, &sinfo,
ps->disc_pid, ps->disc_uid,
ps->disc_euid, ps->secid);
kill_pid_info_as_cred(ps->discsignr, &sinfo,
ps->disc_pid, ps->cred, ps->secid);
}
}
}
......
drivers/usb/core/driver.c
浏览文件 @ 1be025d3
......@@ -1583,7 +1583,7 @@ int usb_autopm_get_interface_async(struct usb_interface *intf)
dev_vdbg(&intf->dev, "%s: cnt %d -> %d\n",
__func__, atomic_read(&intf->dev.power.usage_count),
status);
if (status > 0)
if (status > 0 || status == -EINPROGRESS)
status = 0;
return status;
}
......@@ -1700,6 +1700,20 @@ int usb_runtime_idle(struct device *dev)
return 0;
}
int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
{
struct usb_hcd *hcd = bus_to_hcd(udev->bus);
int ret = -EPERM;
if (hcd->driver->set_usb2_hw_lpm) {
ret = hcd->driver->set_usb2_hw_lpm(hcd, udev, enable);
if (!ret)
udev->usb2_hw_lpm_enabled = enable;
}
return ret;
}
#endif /* CONFIG_USB_SUSPEND */
struct bus_type usb_bus_type = {
......
drivers/usb/core/endpoint.c
浏览文件 @ 1be025d3
......@@ -56,7 +56,7 @@ static ssize_t show_ep_wMaxPacketSize(struct device *dev,
{
struct ep_device *ep = to_ep_device(dev);
return sprintf(buf, "%04x\n",
le16_to_cpu(ep->desc->wMaxPacketSize) & 0x07ff);
usb_endpoint_maxp(ep->desc) & 0x07ff);
}
static DEVICE_ATTR(wMaxPacketSize, S_IRUGO, show_ep_wMaxPacketSize, NULL);
......
drivers/usb/core/hcd-pci.c
浏览文件 @ 1be025d3
......@@ -242,7 +242,7 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
pci_set_master(dev);
retval = usb_add_hcd(hcd, dev->irq, IRQF_DISABLED | IRQF_SHARED);
retval = usb_add_hcd(hcd, dev->irq, IRQF_SHARED);
if (retval != 0)
goto unmap_registers;
set_hs_companion(dev, hcd);
......
drivers/usb/core/hcd.c
浏览文件 @ 1be025d3
......@@ -442,7 +442,11 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
struct usb_ctrlrequest *cmd;
u16 typeReq, wValue, wIndex, wLength;
u8 *ubuf = urb->transfer_buffer;
u8 tbuf [sizeof (struct usb_hub_descriptor)]
/*
* tbuf should be as big as the BOS descriptor and
* the USB hub descriptor.
*/
u8 tbuf[USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE]
__attribute__((aligned(4)));
const u8 *bufp = tbuf;
unsigned len = 0;
......@@ -562,6 +566,8 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
else /* unsupported IDs --> "protocol stall" */
goto error;
break;
case USB_DT_BOS << 8:
goto nongeneric;
default:
goto error;
}
......@@ -596,6 +602,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
/* CLASS REQUESTS (and errors) */
default:
nongeneric:
/* non-generic request */
switch (typeReq) {
case GetHubStatus:
......@@ -605,6 +612,9 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
case GetHubDescriptor:
len = sizeof (struct usb_hub_descriptor);
break;
case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
/* len is returned by hub_control */
break;
}
status = hcd->driver->hub_control (hcd,
typeReq, wValue, wIndex,
......@@ -615,7 +625,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
status = -EPIPE;
}
if (status) {
if (status < 0) {
len = 0;
if (status != -EPIPE) {
dev_dbg (hcd->self.controller,
......@@ -624,6 +634,10 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
typeReq, wValue, wIndex,
wLength, status);
}
} else if (status > 0) {
/* hub_control may return the length of data copied. */
len = status;
status = 0;
}
if (len) {
if (urb->transfer_buffer_length < len)
......@@ -2429,7 +2443,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
* but drivers can override it in reset() if needed, along with
* recording the overall controller's system wakeup capability.
*/
device_init_wakeup(&rhdev->dev, 1);
device_set_wakeup_capable(&rhdev->dev, 1);
/* HCD_FLAG_RH_RUNNING doesn't matter until the root hub is
* registered. But since the controller can die at any time,
......@@ -2478,6 +2492,13 @@ int usb_add_hcd(struct usb_hcd *hcd,
}
if (hcd->uses_new_polling && HCD_POLL_RH(hcd))
usb_hcd_poll_rh_status(hcd);
/*
* Host controllers don't generate their own wakeup requests;
* they only forward requests from the root hub. Therefore
* controllers should always be enabled for remote wakeup.
*/
device_wakeup_enable(hcd->self.controller);
return retval;
error_create_attr_group:
......
drivers/usb/core/hub.c
浏览文件 @ 1be025d3
......@@ -1636,11 +1636,6 @@ void usb_disconnect(struct usb_device **pdev)
int i;
struct usb_hcd *hcd = bus_to_hcd(udev->bus);
if (!udev) {
pr_debug ("%s nodev\n", __func__);
return;
}
/* mark the device as inactive, so any further urb submissions for
* this device (and any of its children) will fail immediately.
* this quiesces everything except pending urbs.
......@@ -2030,11 +2025,23 @@ static unsigned hub_is_wusb(struct usb_hub *hub)
#define HUB_ROOT_RESET_TIME 50 /* times are in msec */
#define HUB_SHORT_RESET_TIME 10
#define HUB_BH_RESET_TIME 50
#define HUB_LONG_RESET_TIME 200
#define HUB_RESET_TIMEOUT 500
static int hub_port_reset(struct usb_hub *hub, int port1,
struct usb_device *udev, unsigned int delay, bool warm);
/* Is a USB 3.0 port in the Inactive state? */
static bool hub_port_inactive(struct usb_hub *hub, u16 portstatus)
{
return hub_is_superspeed(hub->hdev) &&
(portstatus & USB_PORT_STAT_LINK_STATE) ==
USB_SS_PORT_LS_SS_INACTIVE;
}
static int hub_port_wait_reset(struct usb_hub *hub, int port1,
struct usb_device *udev, unsigned int delay)
struct usb_device *udev, unsigned int delay, bool warm)
{
int delay_time, ret;
u16 portstatus;
......@@ -2051,28 +2058,71 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1,
if (ret < 0)
return ret;
/* Device went away? */
if (!(portstatus & USB_PORT_STAT_CONNECTION))
return -ENOTCONN;
/* bomb out completely if the connection bounced */
if ((portchange & USB_PORT_STAT_C_CONNECTION))
return -ENOTCONN;
/* if we`ve finished resetting, then break out of the loop */
if (!(portstatus & USB_PORT_STAT_RESET) &&
(portstatus & USB_PORT_STAT_ENABLE)) {
if (hub_is_wusb(hub))
udev->speed = USB_SPEED_WIRELESS;
else if (hub_is_superspeed(hub->hdev))
udev->speed = USB_SPEED_SUPER;
else if (portstatus & USB_PORT_STAT_HIGH_SPEED)
udev->speed = USB_SPEED_HIGH;
else if (portstatus & USB_PORT_STAT_LOW_SPEED)
udev->speed = USB_SPEED_LOW;
else
udev->speed = USB_SPEED_FULL;
return 0;
/*
* Some buggy devices require a warm reset to be issued even
* when the port appears not to be connected.
*/
if (!warm) {
/*
* Some buggy devices can cause an NEC host controller
* to transition to the "Error" state after a hot port
* reset. This will show up as the port state in
* "Inactive", and the port may also report a
* disconnect. Forcing a warm port reset seems to make
* the device work.
*
* See https://bugzilla.kernel.org/show_bug.cgi?id=41752
*/
if (hub_port_inactive(hub, portstatus)) {
int ret;
if ((portchange & USB_PORT_STAT_C_CONNECTION))
clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_CONNECTION);
if (portchange & USB_PORT_STAT_C_LINK_STATE)
clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_PORT_LINK_STATE);
if (portchange & USB_PORT_STAT_C_RESET)
clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_RESET);
dev_dbg(hub->intfdev, "hot reset failed, warm reset port %d\n",
port1);
ret = hub_port_reset(hub, port1,
udev, HUB_BH_RESET_TIME,
true);
if ((portchange & USB_PORT_STAT_C_CONNECTION))
clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_CONNECTION);
return ret;
}
/* Device went away? */
if (!(portstatus & USB_PORT_STAT_CONNECTION))
return -ENOTCONN;
/* bomb out completely if the connection bounced */
if ((portchange & USB_PORT_STAT_C_CONNECTION))
return -ENOTCONN;
/* if we`ve finished resetting, then break out of
* the loop
*/
if (!(portstatus & USB_PORT_STAT_RESET) &&
(portstatus & USB_PORT_STAT_ENABLE)) {
if (hub_is_wusb(hub))
udev->speed = USB_SPEED_WIRELESS;
else if (hub_is_superspeed(hub->hdev))
udev->speed = USB_SPEED_SUPER;
else if (portstatus & USB_PORT_STAT_HIGH_SPEED)
udev->speed = USB_SPEED_HIGH;
else if (portstatus & USB_PORT_STAT_LOW_SPEED)
udev->speed = USB_SPEED_LOW;
else
udev->speed = USB_SPEED_FULL;
return 0;
}
} else {
if (portchange & USB_PORT_STAT_C_BH_RESET)
return 0;
}
/* switch to the long delay after two short delay failures */
......@@ -2080,35 +2130,84 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1,
delay = HUB_LONG_RESET_TIME;
dev_dbg (hub->intfdev,
"port %d not reset yet, waiting %dms\n",
port1, delay);
"port %d not %sreset yet, waiting %dms\n",
port1, warm ? "warm " : "", delay);
}
return -EBUSY;
}
static void hub_port_finish_reset(struct usb_hub *hub, int port1,
struct usb_device *udev, int *status, bool warm)
{
switch (*status) {
case 0:
if (!warm) {
struct usb_hcd *hcd;
/* TRSTRCY = 10 ms; plus some extra */
msleep(10 + 40);
update_devnum(udev, 0);
hcd = bus_to_hcd(udev->bus);
if (hcd->driver->reset_device) {
*status = hcd->driver->reset_device(hcd, udev);
if (*status < 0) {
dev_err(&udev->dev, "Cannot reset "
"HCD device state\n");
break;
}
}
}
/* FALL THROUGH */
case -ENOTCONN:
case -ENODEV:
clear_port_feature(hub->hdev,
port1, USB_PORT_FEAT_C_RESET);
/* FIXME need disconnect() for NOTATTACHED device */
if (warm) {
clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_BH_PORT_RESET);
clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_PORT_LINK_STATE);
} else {
usb_set_device_state(udev, *status
? USB_STATE_NOTATTACHED
: USB_STATE_DEFAULT);
}
break;
}
}
/* Handle port reset and port warm(BH) reset (for USB3 protocol ports) */
static int hub_port_reset(struct usb_hub *hub, int port1,
struct usb_device *udev, unsigned int delay)
struct usb_device *udev, unsigned int delay, bool warm)
{
int i, status;
struct usb_hcd *hcd;
hcd = bus_to_hcd(udev->bus);
/* Block EHCI CF initialization during the port reset.
* Some companion controllers don't like it when they mix.
*/
down_read(&ehci_cf_port_reset_rwsem);
if (!warm) {
/* Block EHCI CF initialization during the port reset.
* Some companion controllers don't like it when they mix.
*/
down_read(&ehci_cf_port_reset_rwsem);
} else {
if (!hub_is_superspeed(hub->hdev)) {
dev_err(hub->intfdev, "only USB3 hub support "
"warm reset\n");
return -EINVAL;
}
}
/* Reset the port */
for (i = 0; i < PORT_RESET_TRIES; i++) {
status = set_port_feature(hub->hdev,
port1, USB_PORT_FEAT_RESET);
if (status)
status = set_port_feature(hub->hdev, port1, (warm ?
USB_PORT_FEAT_BH_PORT_RESET :
USB_PORT_FEAT_RESET));
if (status) {
dev_err(hub->intfdev,
"cannot reset port %d (err = %d)\n",
port1, status);
else {
status = hub_port_wait_reset(hub, port1, udev, delay);
"cannot %sreset port %d (err = %d)\n",
warm ? "warm " : "", port1, status);
} else {
status = hub_port_wait_reset(hub, port1, udev, delay,
warm);
if (status && status != -ENOTCONN)
dev_dbg(hub->intfdev,
"port_wait_reset: err = %d\n",
......@@ -2116,34 +2215,14 @@ static int hub_port_reset(struct usb_hub *hub, int port1,
}
/* return on disconnect or reset */
switch (status) {
case 0:
/* TRSTRCY = 10 ms; plus some extra */
msleep(10 + 40);
update_devnum(udev, 0);
if (hcd->driver->reset_device) {
status = hcd->driver->reset_device(hcd, udev);
if (status < 0) {
dev_err(&udev->dev, "Cannot reset "
"HCD device state\n");
break;
}
}
/* FALL THROUGH */
case -ENOTCONN:
case -ENODEV:
clear_port_feature(hub->hdev,
port1, USB_PORT_FEAT_C_RESET);
/* FIXME need disconnect() for NOTATTACHED device */
usb_set_device_state(udev, status
? USB_STATE_NOTATTACHED
: USB_STATE_DEFAULT);
if (status == 0 || status == -ENOTCONN || status == -ENODEV) {
hub_port_finish_reset(hub, port1, udev, &status, warm);
goto done;
}
dev_dbg (hub->intfdev,
"port %d not enabled, trying reset again...\n",
port1);
"port %d not enabled, trying %sreset again...\n",
port1, warm ? "warm " : "");
delay = HUB_LONG_RESET_TIME;
}
......@@ -2151,45 +2230,11 @@ static int hub_port_reset(struct usb_hub *hub, int port1,
"Cannot enable port %i. Maybe the USB cable is bad?\n",
port1);
done:
up_read(&ehci_cf_port_reset_rwsem);
return status;
}
/* Warm reset a USB3 protocol port */
static int hub_port_warm_reset(struct usb_hub *hub, int port)
{
int ret;
u16 portstatus, portchange;
if (!hub_is_superspeed(hub->hdev)) {
dev_err(hub->intfdev, "only USB3 hub support warm reset\n");
return -EINVAL;
}
/* Warm reset the port */
ret = set_port_feature(hub->hdev,
port, USB_PORT_FEAT_BH_PORT_RESET);
if (ret) {
dev_err(hub->intfdev, "cannot warm reset port %d\n", port);
return ret;
}
msleep(20);
ret = hub_port_status(hub, port, &portstatus, &portchange);
if (portchange & USB_PORT_STAT_C_RESET)
clear_port_feature(hub->hdev, port, USB_PORT_FEAT_C_RESET);
if (portchange & USB_PORT_STAT_C_BH_RESET)
clear_port_feature(hub->hdev, port,
USB_PORT_FEAT_C_BH_PORT_RESET);
if (portchange & USB_PORT_STAT_C_LINK_STATE)
clear_port_feature(hub->hdev, port,
USB_PORT_FEAT_C_PORT_LINK_STATE);
done:
if (!warm)
up_read(&ehci_cf_port_reset_rwsem);
return ret;
return status;
}
/* Check if a port is power on */
......@@ -2347,6 +2392,10 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
}
}
/* disable USB2 hardware LPM */
if (udev->usb2_hw_lpm_enabled == 1)
usb_set_usb2_hardware_lpm(udev, 0);
/* see 7.1.7.6 */
if (hub_is_superspeed(hub->hdev))
status = set_port_feature(hub->hdev,
......@@ -2558,7 +2607,12 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg)
if (status < 0) {
dev_dbg(&udev->dev, "can't resume, status %d\n", status);
hub_port_logical_disconnect(hub, port1);
} else {
/* Try to enable USB2 hardware LPM */
if (udev->usb2_hw_lpm_capable == 1)
usb_set_usb2_hardware_lpm(udev, 1);
}
return status;
}
......@@ -2798,7 +2852,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
int i, j, retval;
unsigned delay = HUB_SHORT_RESET_TIME;
enum usb_device_speed oldspeed = udev->speed;
char *speed, *type;
const char *speed;
int devnum = udev->devnum;
/* root hub ports have a slightly longer reset period
......@@ -2819,7 +2873,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
/* Reset the device; full speed may morph to high speed */
/* FIXME a USB 2.0 device may morph into SuperSpeed on reset. */
retval = hub_port_reset(hub, port1, udev, delay);
retval = hub_port_reset(hub, port1, udev, delay, false);
if (retval < 0) /* error or disconnect */
goto fail;
/* success, speed is known */
......@@ -2858,25 +2912,16 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
default:
goto fail;
}
type = "";
switch (udev->speed) {
case USB_SPEED_LOW: speed = "low"; break;
case USB_SPEED_FULL: speed = "full"; break;
case USB_SPEED_HIGH: speed = "high"; break;
case USB_SPEED_SUPER:
speed = "super";
break;
case USB_SPEED_WIRELESS:
speed = "variable";
type = "Wireless ";
break;
default: speed = "?"; break;
}
if (udev->speed == USB_SPEED_WIRELESS)
speed = "variable speed Wireless";
else
speed = usb_speed_string(udev->speed);
if (udev->speed != USB_SPEED_SUPER)
dev_info(&udev->dev,
"%s %s speed %sUSB device number %d using %s\n",
(udev->config) ? "reset" : "new", speed, type,
"%s %s USB device number %d using %s\n",
(udev->config) ? "reset" : "new", speed,
devnum, udev->bus->controller->driver->name);
/* Set up TT records, if needed */
......@@ -2949,7 +2994,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
buf->bMaxPacketSize0;
kfree(buf);
retval = hub_port_reset(hub, port1, udev, delay);
retval = hub_port_reset(hub, port1, udev, delay, false);
if (retval < 0) /* error or disconnect */
goto fail;
if (oldspeed != udev->speed) {
......@@ -3023,7 +3068,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
i = 512;
else
i = udev->descriptor.bMaxPacketSize0;
if (le16_to_cpu(udev->ep0.desc.wMaxPacketSize) != i) {
if (usb_endpoint_maxp(&udev->ep0.desc) != i) {
if (udev->speed == USB_SPEED_LOW ||
!(i == 8 || i == 16 || i == 32 || i == 64)) {
dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", i);
......@@ -3047,6 +3092,15 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
goto fail;
}
if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) {
retval = usb_get_bos_descriptor(udev);
if (!retval) {
if (udev->bos->ext_cap && (USB_LPM_SUPPORT &
le32_to_cpu(udev->bos->ext_cap->bmAttributes)))
udev->lpm_capable = 1;
}
}
retval = 0;
/* notify HCD that we have a device connected and addressed */
if (hcd->driver->update_device)
......@@ -3570,7 +3624,8 @@ static void hub_events(void)
(portstatus & USB_PORT_STAT_LINK_STATE)
== USB_SS_PORT_LS_SS_INACTIVE) {
dev_dbg(hub_dev, "warm reset port %d\n", i);
hub_port_warm_reset(hub, i);
hub_port_reset(hub, i, NULL,
HUB_BH_RESET_TIME, true);
}
if (connect_change)
......
drivers/usb/core/message.c
浏览文件 @ 1be025d3
......@@ -435,7 +435,7 @@ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev,
len = sg->length;
if (length) {
len = min_t(unsigned, len, length);
len = min_t(size_t, len, length);
length -= len;
if (length == 0)
io->entries = i + 1;
......
drivers/usb/core/quirks.c
浏览文件 @ 1be025d3
......@@ -38,6 +38,27 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Creative SB Audigy 2 NX */
{ USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Webcam C200 */
{ USB_DEVICE(0x046d, 0x0802), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Webcam C250 */
{ USB_DEVICE(0x046d, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Webcam C300 */
{ USB_DEVICE(0x046d, 0x0805), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Webcam B/C500 */
{ USB_DEVICE(0x046d, 0x0807), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Webcam Pro 9000 */
{ USB_DEVICE(0x046d, 0x0809), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Webcam C310 */
{ USB_DEVICE(0x046d, 0x081b), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Webcam C270 */
{ USB_DEVICE(0x046d, 0x0825), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Harmony 700-series */
{ USB_DEVICE(0x046d, 0xc122), .driver_info = USB_QUIRK_DELAY_INIT },
......@@ -69,6 +90,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x06a3, 0x0006), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* Guillemot Webcam Hercules Dualpix Exchange*/
{ USB_DEVICE(0x06f8, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },
/* M-Systems Flash Disk Pioneers */
{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
......
drivers/usb/core/sysfs.c
浏览文件 @ 1be025d3
......@@ -412,6 +412,56 @@ set_level(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR(level, S_IRUGO | S_IWUSR, show_level, set_level);
static ssize_t
show_usb2_hardware_lpm(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct usb_device *udev = to_usb_device(dev);
const char *p;
if (udev->usb2_hw_lpm_enabled == 1)
p = "enabled";
else
p = "disabled";
return sprintf(buf, "%s\n", p);
}
static ssize_t
set_usb2_hardware_lpm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct usb_device *udev = to_usb_device(dev);
bool value;
int ret;
usb_lock_device(udev);
ret = strtobool(buf, &value);
if (!ret)
ret = usb_set_usb2_hardware_lpm(udev, value);
usb_unlock_device(udev);
if (!ret)
return count;
return ret;
}
static DEVICE_ATTR(usb2_hardware_lpm, S_IRUGO | S_IWUSR, show_usb2_hardware_lpm,
set_usb2_hardware_lpm);
static struct attribute *usb2_hardware_lpm_attr[] = {
&dev_attr_usb2_hardware_lpm.attr,
NULL,
};
static struct attribute_group usb2_hardware_lpm_attr_group = {
.name = power_group_name,
.attrs = usb2_hardware_lpm_attr,
};
static struct attribute *power_attrs[] = {
&dev_attr_autosuspend.attr,
&dev_attr_level.attr,
......@@ -428,13 +478,20 @@ static int add_power_attributes(struct device *dev)
{
int rc = 0;
if (is_usb_device(dev))
if (is_usb_device(dev)) {
struct usb_device *udev = to_usb_device(dev);
rc = sysfs_merge_group(&dev->kobj, &power_attr_group);
if (udev->usb2_hw_lpm_capable == 1)
rc = sysfs_merge_group(&dev->kobj,
&usb2_hardware_lpm_attr_group);
}
return rc;
}
static void remove_power_attributes(struct device *dev)
{
sysfs_unmerge_group(&dev->kobj, &usb2_hardware_lpm_attr_group);
sysfs_unmerge_group(&dev->kobj, &power_attr_group);
}
......
drivers/usb/core/urb.c
浏览文件 @ 1be025d3
......@@ -350,7 +350,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
dev->state < USB_STATE_CONFIGURED)
return -ENODEV;
max = le16_to_cpu(ep->desc.wMaxPacketSize);
max = usb_endpoint_maxp(&ep->desc);
if (max <= 0) {
dev_dbg(&dev->dev,
"bogus endpoint ep%d%s in %s (bad maxpacket %d)\n",
......
drivers/usb/core/usb.c
浏览文件 @ 1be025d3
......@@ -225,6 +225,7 @@ static void usb_release_dev(struct device *dev)
hcd = bus_to_hcd(udev->bus);
usb_destroy_configuration(udev);
usb_release_bos_descriptor(udev);
usb_put_hcd(hcd);
kfree(udev->product);
kfree(udev->manufacturer);
......
drivers/usb/core/usb.h
浏览文件 @ 1be025d3
......@@ -28,6 +28,8 @@ extern int usb_remove_device(struct usb_device *udev);
extern int usb_get_device_descriptor(struct usb_device *dev,
unsigned int size);
extern int usb_get_bos_descriptor(struct usb_device *dev);
extern void usb_release_bos_descriptor(struct usb_device *dev);
extern char *usb_cache_string(struct usb_device *udev, int index);
extern int usb_set_configuration(struct usb_device *dev, int configuration);
extern int usb_choose_configuration(struct usb_device *udev);
......@@ -80,6 +82,7 @@ extern int usb_remote_wakeup(struct usb_device *dev);
extern int usb_runtime_suspend(struct device *dev);
extern int usb_runtime_resume(struct device *dev);
extern int usb_runtime_idle(struct device *dev);
extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
#else
......@@ -94,6 +97,10 @@ static inline int usb_remote_wakeup(struct usb_device *udev)
return 0;
}
static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
{
return 0;
}
#endif
extern struct bus_type usb_bus_type;
......
drivers/usb/dwc3/Kconfig 0 → 100644
浏览文件 @ 1be025d3
config USB_DWC3
tristate "DesignWare USB3 DRD Core Support"
depends on (USB || USB_GADGET)
select USB_OTG_UTILS
help
Say Y or M here if your system has a Dual Role SuperSpeed
USB controller based on the DesignWare USB3 IP Core.
If you choose to build this driver is a dynamically linked
module, the module will be called dwc3.ko.
if USB_DWC3
config USB_DWC3_DEBUG
bool "Enable Debugging Messages"
help
Say Y here to enable debugging messages on DWC3 Driver.
config USB_DWC3_VERBOSE
bool "Enable Verbose Debugging Messages"
depends on USB_DWC3_DEBUG
help
Say Y here to enable verbose debugging messages on DWC3 Driver.
endif
drivers/usb/dwc3/Makefile 0 → 100644
浏览文件 @ 1be025d3
ccflags-$(CONFIG_USB_DWC3_DEBUG) := -DDEBUG
ccflags-$(CONFIG_USB_DWC3_VERBOSE) += -DVERBOSE_DEBUG
obj-$(CONFIG_USB_DWC3) += dwc3.o
dwc3-y := core.o
ifneq ($(CONFIG_USB_GADGET_DWC3),)
dwc3-y += gadget.o ep0.o
endif
ifneq ($(CONFIG_DEBUG_FS),)
dwc3-y += debugfs.o
endif
##
# Platform-specific glue layers go here
#
# NOTICE: Make sure your glue layer doesn't depend on anything
# which is arch-specific and that it compiles on all situations.
#
# We want to keep this requirement in order to be able to compile
# the entire driver (with all its glue layers) on several architectures
# and make sure it compiles fine. This will also help with allmodconfig
# and allyesconfig builds.
#
# The only exception is the PCI glue layer, but that's only because
# PCI doesn't provide nops if CONFIG_PCI isn't enabled.
##
obj-$(CONFIG_USB_DWC3) += dwc3-omap.o
ifneq ($(CONFIG_PCI),)
obj-$(CONFIG_USB_DWC3) += dwc3-pci.o
endif
drivers/usb/dwc3/core.c 0 → 100644
浏览文件 @ 1be025d3
/**
* core.c - DesignWare USB3 DRD Controller Core file
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2, as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/list.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/module.h>
#include "core.h"
#include "gadget.h"
#include "io.h"
#include "debug.h"
/**
* dwc3_core_soft_reset - Issues core soft reset and PHY reset
* @dwc: pointer to our context structure
*/
static void dwc3_core_soft_reset(struct dwc3 *dwc)
{
u32 reg;
/* Before Resetting PHY, put Core in Reset */
reg = dwc3_readl(dwc->regs, DWC3_GCTL);
reg |= DWC3_GCTL_CORESOFTRESET;
dwc3_writel(dwc->regs, DWC3_GCTL, reg);
/* Assert USB3 PHY reset */
reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
reg |= DWC3_GUSB3PIPECTL_PHYSOFTRST;
dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
/* Assert USB2 PHY reset */
reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
reg |= DWC3_GUSB2PHYCFG_PHYSOFTRST;
dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
mdelay(100);
/* Clear USB3 PHY reset */
reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
reg &= ~DWC3_GUSB3PIPECTL_PHYSOFTRST;
dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
/* Clear USB2 PHY reset */
reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
reg &= ~DWC3_GUSB2PHYCFG_PHYSOFTRST;
dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
/* After PHYs are stable we can take Core out of reset state */
reg = dwc3_readl(dwc->regs, DWC3_GCTL);
reg &= ~DWC3_GCTL_CORESOFTRESET;
dwc3_writel(dwc->regs, DWC3_GCTL, reg);
}
/**
* dwc3_free_one_event_buffer - Frees one event buffer
* @dwc: Pointer to our controller context structure
* @evt: Pointer to event buffer to be freed
*/
static void dwc3_free_one_event_buffer(struct dwc3 *dwc,
struct dwc3_event_buffer *evt)
{
dma_free_coherent(dwc->dev, evt->length, evt->buf, evt->dma);
kfree(evt);
}
/**
* dwc3_alloc_one_event_buffer - Allocated one event buffer structure
* @dwc: Pointer to our controller context structure
* @length: size of the event buffer
*
* Returns a pointer to the allocated event buffer structure on succes
* otherwise ERR_PTR(errno).
*/
static struct dwc3_event_buffer *__devinit
dwc3_alloc_one_event_buffer(struct dwc3 *dwc, unsigned length)
{
struct dwc3_event_buffer *evt;
evt = kzalloc(sizeof(*evt), GFP_KERNEL);
if (!evt)
return ERR_PTR(-ENOMEM);
evt->dwc = dwc;
evt->length = length;
evt->buf = dma_alloc_coherent(dwc->dev, length,
&evt->dma, GFP_KERNEL);
if (!evt->buf) {
kfree(evt);
return ERR_PTR(-ENOMEM);
}
return evt;
}
/**
* dwc3_free_event_buffers - frees all allocated event buffers
* @dwc: Pointer to our controller context structure
*/
static void dwc3_free_event_buffers(struct dwc3 *dwc)
{
struct dwc3_event_buffer *evt;
int i;
for (i = 0; i < DWC3_EVENT_BUFFERS_NUM; i++) {
evt = dwc->ev_buffs[i];
if (evt) {
dwc3_free_one_event_buffer(dwc, evt);
dwc->ev_buffs[i] = NULL;
}
}
}
/**
* dwc3_alloc_event_buffers - Allocates @num event buffers of size @length
* @dwc: Pointer to out controller context structure
* @num: number of event buffers to allocate
* @length: size of event buffer
*
* Returns 0 on success otherwise negative errno. In error the case, dwc
* may contain some buffers allocated but not all which were requested.
*/
static int __devinit dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned num,
unsigned length)
{
int i;
for (i = 0; i < num; i++) {
struct dwc3_event_buffer *evt;
evt = dwc3_alloc_one_event_buffer(dwc, length);
if (IS_ERR(evt)) {
dev_err(dwc->dev, "can't allocate event buffer\n");
return PTR_ERR(evt);
}
dwc->ev_buffs[i] = evt;
}
return 0;
}
/**
* dwc3_event_buffers_setup - setup our allocated event buffers
* @dwc: Pointer to out controller context structure
*
* Returns 0 on success otherwise negative errno.
*/
static int __devinit dwc3_event_buffers_setup(struct dwc3 *dwc)
{
struct dwc3_event_buffer *evt;
int n;
for (n = 0; n < DWC3_EVENT_BUFFERS_NUM; n++) {
evt = dwc->ev_buffs[n];
dev_dbg(dwc->dev, "Event buf %p dma %08llx length %d\n",
evt->buf, (unsigned long long) evt->dma,
evt->length);
dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(n),
lower_32_bits(evt->dma));
dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(n),
upper_32_bits(evt->dma));
dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(n),
evt->length & 0xffff);
dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(n), 0);
}
return 0;
}
static void dwc3_event_buffers_cleanup(struct dwc3 *dwc)
{
struct dwc3_event_buffer *evt;
int n;
for (n = 0; n < DWC3_EVENT_BUFFERS_NUM; n++) {
evt = dwc->ev_buffs[n];
dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(n), 0);
dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(n), 0);
dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(n), 0);
dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(n), 0);
}
}
static void __devinit dwc3_cache_hwparams(struct dwc3 *dwc)
{
struct dwc3_hwparams *parms = &dwc->hwparams;
parms->hwparams0 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS0);
parms->hwparams1 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS1);
parms->hwparams2 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS2);
parms->hwparams3 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS3);
parms->hwparams4 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS4);
parms->hwparams5 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS5);
parms->hwparams6 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS6);
parms->hwparams7 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS7);
parms->hwparams8 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS8);
}
/**
* dwc3_core_init - Low-level initialization of DWC3 Core
* @dwc: Pointer to our controller context structure
*
* Returns 0 on success otherwise negative errno.
*/
static int __devinit dwc3_core_init(struct dwc3 *dwc)
{
unsigned long timeout;
u32 reg;
int ret;
reg = dwc3_readl(dwc->regs, DWC3_GSNPSID);
/* This should read as U3 followed by revision number */
if ((reg & DWC3_GSNPSID_MASK) != 0x55330000) {
dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
ret = -ENODEV;
goto err0;
}
dwc->revision = reg & DWC3_GSNPSREV_MASK;
dwc3_core_soft_reset(dwc);
/* issue device SoftReset too */
timeout = jiffies + msecs_to_jiffies(500);
dwc3_writel(dwc->regs, DWC3_DCTL, DWC3_DCTL_CSFTRST);
do {
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
if (!(reg & DWC3_DCTL_CSFTRST))
break;
if (time_after(jiffies, timeout)) {
dev_err(dwc->dev, "Reset Timed Out\n");
ret = -ETIMEDOUT;
goto err0;
}
cpu_relax();
} while (true);
ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_NUM,
DWC3_EVENT_BUFFERS_SIZE);
if (ret) {
dev_err(dwc->dev, "failed to allocate event buffers\n");
ret = -ENOMEM;
goto err1;
}
ret = dwc3_event_buffers_setup(dwc);
if (ret) {
dev_err(dwc->dev, "failed to setup event buffers\n");
goto err1;
}
dwc3_cache_hwparams(dwc);
return 0;
err1:
dwc3_free_event_buffers(dwc);
err0:
return ret;
}
static void dwc3_core_exit(struct dwc3 *dwc)
{
dwc3_event_buffers_cleanup(dwc);
dwc3_free_event_buffers(dwc);
}
#define DWC3_ALIGN_MASK (16 - 1)
static int __devinit dwc3_probe(struct platform_device *pdev)
{
const struct platform_device_id *id = platform_get_device_id(pdev);
struct resource *res;
struct dwc3 *dwc;
void __iomem *regs;
unsigned int features = id->driver_data;
int ret = -ENOMEM;
int irq;
void *mem;
mem = kzalloc(sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
if (!mem) {
dev_err(&pdev->dev, "not enough memory\n");
goto err0;
}
dwc = PTR_ALIGN(mem, DWC3_ALIGN_MASK + 1);
dwc->mem = mem;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "missing resource\n");
goto err1;
}
res = request_mem_region(res->start, resource_size(res),
dev_name(&pdev->dev));
if (!res) {
dev_err(&pdev->dev, "can't request mem region\n");
goto err1;
}
regs = ioremap(res->start, resource_size(res));
if (!regs) {
dev_err(&pdev->dev, "ioremap failed\n");
goto err2;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "missing IRQ\n");
goto err3;
}
spin_lock_init(&dwc->lock);
platform_set_drvdata(pdev, dwc);
dwc->regs = regs;
dwc->regs_size = resource_size(res);
dwc->dev = &pdev->dev;
dwc->irq = irq;
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
pm_runtime_forbid(&pdev->dev);
ret = dwc3_core_init(dwc);
if (ret) {
dev_err(&pdev->dev, "failed to initialize core\n");
goto err3;
}
if (features & DWC3_HAS_PERIPHERAL) {
ret = dwc3_gadget_init(dwc);
if (ret) {
dev_err(&pdev->dev, "failed to initialized gadget\n");
goto err4;
}
}
ret = dwc3_debugfs_init(dwc);
if (ret) {
dev_err(&pdev->dev, "failed to initialize debugfs\n");
goto err5;
}
pm_runtime_allow(&pdev->dev);
return 0;
err5:
if (features & DWC3_HAS_PERIPHERAL)
dwc3_gadget_exit(dwc);
err4:
dwc3_core_exit(dwc);
err3:
iounmap(regs);
err2:
release_mem_region(res->start, resource_size(res));
err1:
kfree(dwc->mem);
err0:
return ret;
}
static int __devexit dwc3_remove(struct platform_device *pdev)
{
const struct platform_device_id *id = platform_get_device_id(pdev);
struct dwc3 *dwc = platform_get_drvdata(pdev);
struct resource *res;
unsigned int features = id->driver_data;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pm_runtime_put(&pdev->dev);
pm_runtime_disable(&pdev->dev);
dwc3_debugfs_exit(dwc);
if (features & DWC3_HAS_PERIPHERAL)
dwc3_gadget_exit(dwc);
dwc3_core_exit(dwc);
release_mem_region(res->start, resource_size(res));
iounmap(dwc->regs);
kfree(dwc->mem);
return 0;
}
static const struct platform_device_id dwc3_id_table[] __devinitconst = {
{
.name = "dwc3-omap",
.driver_data = (DWC3_HAS_PERIPHERAL
| DWC3_HAS_XHCI
| DWC3_HAS_OTG),
},
{
.name = "dwc3-pci",
.driver_data = DWC3_HAS_PERIPHERAL,
},
{ }, /* Terminating Entry */
};
MODULE_DEVICE_TABLE(platform, dwc3_id_table);
static struct platform_driver dwc3_driver = {
.probe = dwc3_probe,
.remove = __devexit_p(dwc3_remove),
.driver = {
.name = "dwc3",
},
.id_table = dwc3_id_table,
};
MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver");
static int __devinit dwc3_init(void)
{
return platform_driver_register(&dwc3_driver);
}
module_init(dwc3_init);
static void __exit dwc3_exit(void)
{
platform_driver_unregister(&dwc3_driver);
}
module_exit(dwc3_exit);
drivers/usb/dwc3/core.h 0 → 100644
浏览文件 @ 1be025d3
此差异已折叠。
drivers/usb/dwc3/debug.h 0 → 100644
浏览文件 @ 1be025d3
/**
* debug.h - DesignWare USB3 DRD Controller Debug Header
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2, as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "core.h"
#ifdef CONFIG_DEBUG_FS
extern int dwc3_debugfs_init(struct dwc3 *);
extern void dwc3_debugfs_exit(struct dwc3 *);
#else
static inline int dwc3_debugfs_init(struct dwc3 *d)
{ return 0; }
static inline void dwc3_debugfs_exit(struct dwc3 *d)
{ }
#endif
drivers/usb/dwc3/debugfs.c 0 → 100644
浏览文件 @ 1be025d3
/**
* debugfs.c - DesignWare USB3 DRD Controller DebugFS file
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2, as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/ptrace.h>
#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/delay.h>
#include <asm/uaccess.h>
#include "core.h"
#include "gadget.h"
#include "io.h"
struct dwc3_register {
const char *name;
u32 offset;
};
#define dump_register(nm) \
{ \
.name = __stringify(nm), \
.offset = DWC3_ ##nm, \
}
static const struct dwc3_register dwc3_regs[] = {
dump_register(GSBUSCFG0),
dump_register(GSBUSCFG1),
dump_register(GTXTHRCFG),
dump_register(GRXTHRCFG),
dump_register(GCTL),
dump_register(GEVTEN),
dump_register(GSTS),
dump_register(GSNPSID),
dump_register(GGPIO),
dump_register(GUID),
dump_register(GUCTL),
dump_register(GBUSERRADDR0),
dump_register(GBUSERRADDR1),
dump_register(GPRTBIMAP0),
dump_register(GPRTBIMAP1),
dump_register(GHWPARAMS0),
dump_register(GHWPARAMS1),
dump_register(GHWPARAMS2),
dump_register(GHWPARAMS3),
dump_register(GHWPARAMS4),
dump_register(GHWPARAMS5),
dump_register(GHWPARAMS6),
dump_register(GHWPARAMS7),
dump_register(GDBGFIFOSPACE),
dump_register(GDBGLTSSM),
dump_register(GPRTBIMAP_HS0),
dump_register(GPRTBIMAP_HS1),
dump_register(GPRTBIMAP_FS0),
dump_register(GPRTBIMAP_FS1),
dump_register(GUSB2PHYCFG(0)),
dump_register(GUSB2PHYCFG(1)),
dump_register(GUSB2PHYCFG(2)),
dump_register(GUSB2PHYCFG(3)),
dump_register(GUSB2PHYCFG(4)),
dump_register(GUSB2PHYCFG(5)),
dump_register(GUSB2PHYCFG(6)),
dump_register(GUSB2PHYCFG(7)),
dump_register(GUSB2PHYCFG(8)),
dump_register(GUSB2PHYCFG(9)),
dump_register(GUSB2PHYCFG(10)),
dump_register(GUSB2PHYCFG(11)),
dump_register(GUSB2PHYCFG(12)),
dump_register(GUSB2PHYCFG(13)),
dump_register(GUSB2PHYCFG(14)),
dump_register(GUSB2PHYCFG(15)),
dump_register(GUSB2I2CCTL(0)),
dump_register(GUSB2I2CCTL(1)),
dump_register(GUSB2I2CCTL(2)),
dump_register(GUSB2I2CCTL(3)),
dump_register(GUSB2I2CCTL(4)),
dump_register(GUSB2I2CCTL(5)),
dump_register(GUSB2I2CCTL(6)),
dump_register(GUSB2I2CCTL(7)),
dump_register(GUSB2I2CCTL(8)),
dump_register(GUSB2I2CCTL(9)),
dump_register(GUSB2I2CCTL(10)),
dump_register(GUSB2I2CCTL(11)),
dump_register(GUSB2I2CCTL(12)),
dump_register(GUSB2I2CCTL(13)),
dump_register(GUSB2I2CCTL(14)),
dump_register(GUSB2I2CCTL(15)),
dump_register(GUSB2PHYACC(0)),
dump_register(GUSB2PHYACC(1)),
dump_register(GUSB2PHYACC(2)),
dump_register(GUSB2PHYACC(3)),
dump_register(GUSB2PHYACC(4)),
dump_register(GUSB2PHYACC(5)),
dump_register(GUSB2PHYACC(6)),
dump_register(GUSB2PHYACC(7)),
dump_register(GUSB2PHYACC(8)),
dump_register(GUSB2PHYACC(9)),
dump_register(GUSB2PHYACC(10)),
dump_register(GUSB2PHYACC(11)),
dump_register(GUSB2PHYACC(12)),
dump_register(GUSB2PHYACC(13)),
dump_register(GUSB2PHYACC(14)),
dump_register(GUSB2PHYACC(15)),
dump_register(GUSB3PIPECTL(0)),
dump_register(GUSB3PIPECTL(1)),
dump_register(GUSB3PIPECTL(2)),
dump_register(GUSB3PIPECTL(3)),
dump_register(GUSB3PIPECTL(4)),
dump_register(GUSB3PIPECTL(5)),
dump_register(GUSB3PIPECTL(6)),
dump_register(GUSB3PIPECTL(7)),
dump_register(GUSB3PIPECTL(8)),
dump_register(GUSB3PIPECTL(9)),
dump_register(GUSB3PIPECTL(10)),
dump_register(GUSB3PIPECTL(11)),
dump_register(GUSB3PIPECTL(12)),
dump_register(GUSB3PIPECTL(13)),
dump_register(GUSB3PIPECTL(14)),
dump_register(GUSB3PIPECTL(15)),
dump_register(GTXFIFOSIZ(0)),
dump_register(GTXFIFOSIZ(1)),
dump_register(GTXFIFOSIZ(2)),
dump_register(GTXFIFOSIZ(3)),
dump_register(GTXFIFOSIZ(4)),
dump_register(GTXFIFOSIZ(5)),
dump_register(GTXFIFOSIZ(6)),
dump_register(GTXFIFOSIZ(7)),
dump_register(GTXFIFOSIZ(8)),
dump_register(GTXFIFOSIZ(9)),
dump_register(GTXFIFOSIZ(10)),
dump_register(GTXFIFOSIZ(11)),
dump_register(GTXFIFOSIZ(12)),
dump_register(GTXFIFOSIZ(13)),
dump_register(GTXFIFOSIZ(14)),
dump_register(GTXFIFOSIZ(15)),
dump_register(GTXFIFOSIZ(16)),
dump_register(GTXFIFOSIZ(17)),
dump_register(GTXFIFOSIZ(18)),
dump_register(GTXFIFOSIZ(19)),
dump_register(GTXFIFOSIZ(20)),
dump_register(GTXFIFOSIZ(21)),
dump_register(GTXFIFOSIZ(22)),
dump_register(GTXFIFOSIZ(23)),
dump_register(GTXFIFOSIZ(24)),
dump_register(GTXFIFOSIZ(25)),
dump_register(GTXFIFOSIZ(26)),
dump_register(GTXFIFOSIZ(27)),
dump_register(GTXFIFOSIZ(28)),
dump_register(GTXFIFOSIZ(29)),
dump_register(GTXFIFOSIZ(30)),
dump_register(GTXFIFOSIZ(31)),
dump_register(GRXFIFOSIZ(0)),
dump_register(GRXFIFOSIZ(1)),
dump_register(GRXFIFOSIZ(2)),
dump_register(GRXFIFOSIZ(3)),
dump_register(GRXFIFOSIZ(4)),
dump_register(GRXFIFOSIZ(5)),
dump_register(GRXFIFOSIZ(6)),
dump_register(GRXFIFOSIZ(7)),
dump_register(GRXFIFOSIZ(8)),
dump_register(GRXFIFOSIZ(9)),
dump_register(GRXFIFOSIZ(10)),
dump_register(GRXFIFOSIZ(11)),
dump_register(GRXFIFOSIZ(12)),
dump_register(GRXFIFOSIZ(13)),
dump_register(GRXFIFOSIZ(14)),
dump_register(GRXFIFOSIZ(15)),
dump_register(GRXFIFOSIZ(16)),
dump_register(GRXFIFOSIZ(17)),
dump_register(GRXFIFOSIZ(18)),
dump_register(GRXFIFOSIZ(19)),
dump_register(GRXFIFOSIZ(20)),
dump_register(GRXFIFOSIZ(21)),
dump_register(GRXFIFOSIZ(22)),
dump_register(GRXFIFOSIZ(23)),
dump_register(GRXFIFOSIZ(24)),
dump_register(GRXFIFOSIZ(25)),
dump_register(GRXFIFOSIZ(26)),
dump_register(GRXFIFOSIZ(27)),
dump_register(GRXFIFOSIZ(28)),
dump_register(GRXFIFOSIZ(29)),
dump_register(GRXFIFOSIZ(30)),
dump_register(GRXFIFOSIZ(31)),
dump_register(GEVNTADRLO(0)),
dump_register(GEVNTADRHI(0)),
dump_register(GEVNTSIZ(0)),
dump_register(GEVNTCOUNT(0)),
dump_register(GHWPARAMS8),
dump_register(DCFG),
dump_register(DCTL),
dump_register(DEVTEN),
dump_register(DSTS),
dump_register(DGCMDPAR),
dump_register(DGCMD),
dump_register(DALEPENA),
dump_register(DEPCMDPAR2(0)),
dump_register(DEPCMDPAR2(1)),
dump_register(DEPCMDPAR2(2)),
dump_register(DEPCMDPAR2(3)),
dump_register(DEPCMDPAR2(4)),
dump_register(DEPCMDPAR2(5)),
dump_register(DEPCMDPAR2(6)),
dump_register(DEPCMDPAR2(7)),
dump_register(DEPCMDPAR2(8)),
dump_register(DEPCMDPAR2(9)),
dump_register(DEPCMDPAR2(10)),
dump_register(DEPCMDPAR2(11)),
dump_register(DEPCMDPAR2(12)),
dump_register(DEPCMDPAR2(13)),
dump_register(DEPCMDPAR2(14)),
dump_register(DEPCMDPAR2(15)),
dump_register(DEPCMDPAR2(16)),
dump_register(DEPCMDPAR2(17)),
dump_register(DEPCMDPAR2(18)),
dump_register(DEPCMDPAR2(19)),
dump_register(DEPCMDPAR2(20)),
dump_register(DEPCMDPAR2(21)),
dump_register(DEPCMDPAR2(22)),
dump_register(DEPCMDPAR2(23)),
dump_register(DEPCMDPAR2(24)),
dump_register(DEPCMDPAR2(25)),
dump_register(DEPCMDPAR2(26)),
dump_register(DEPCMDPAR2(27)),
dump_register(DEPCMDPAR2(28)),
dump_register(DEPCMDPAR2(29)),
dump_register(DEPCMDPAR2(30)),
dump_register(DEPCMDPAR2(31)),
dump_register(DEPCMDPAR1(0)),
dump_register(DEPCMDPAR1(1)),
dump_register(DEPCMDPAR1(2)),
dump_register(DEPCMDPAR1(3)),
dump_register(DEPCMDPAR1(4)),
dump_register(DEPCMDPAR1(5)),
dump_register(DEPCMDPAR1(6)),
dump_register(DEPCMDPAR1(7)),
dump_register(DEPCMDPAR1(8)),
dump_register(DEPCMDPAR1(9)),
dump_register(DEPCMDPAR1(10)),
dump_register(DEPCMDPAR1(11)),
dump_register(DEPCMDPAR1(12)),
dump_register(DEPCMDPAR1(13)),
dump_register(DEPCMDPAR1(14)),
dump_register(DEPCMDPAR1(15)),
dump_register(DEPCMDPAR1(16)),
dump_register(DEPCMDPAR1(17)),
dump_register(DEPCMDPAR1(18)),
dump_register(DEPCMDPAR1(19)),
dump_register(DEPCMDPAR1(20)),
dump_register(DEPCMDPAR1(21)),
dump_register(DEPCMDPAR1(22)),
dump_register(DEPCMDPAR1(23)),
dump_register(DEPCMDPAR1(24)),
dump_register(DEPCMDPAR1(25)),
dump_register(DEPCMDPAR1(26)),
dump_register(DEPCMDPAR1(27)),
dump_register(DEPCMDPAR1(28)),
dump_register(DEPCMDPAR1(29)),
dump_register(DEPCMDPAR1(30)),
dump_register(DEPCMDPAR1(31)),
dump_register(DEPCMDPAR0(0)),
dump_register(DEPCMDPAR0(1)),
dump_register(DEPCMDPAR0(2)),
dump_register(DEPCMDPAR0(3)),
dump_register(DEPCMDPAR0(4)),
dump_register(DEPCMDPAR0(5)),
dump_register(DEPCMDPAR0(6)),
dump_register(DEPCMDPAR0(7)),
dump_register(DEPCMDPAR0(8)),
dump_register(DEPCMDPAR0(9)),
dump_register(DEPCMDPAR0(10)),
dump_register(DEPCMDPAR0(11)),
dump_register(DEPCMDPAR0(12)),
dump_register(DEPCMDPAR0(13)),
dump_register(DEPCMDPAR0(14)),
dump_register(DEPCMDPAR0(15)),
dump_register(DEPCMDPAR0(16)),
dump_register(DEPCMDPAR0(17)),
dump_register(DEPCMDPAR0(18)),
dump_register(DEPCMDPAR0(19)),
dump_register(DEPCMDPAR0(20)),
dump_register(DEPCMDPAR0(21)),
dump_register(DEPCMDPAR0(22)),
dump_register(DEPCMDPAR0(23)),
dump_register(DEPCMDPAR0(24)),
dump_register(DEPCMDPAR0(25)),
dump_register(DEPCMDPAR0(26)),
dump_register(DEPCMDPAR0(27)),
dump_register(DEPCMDPAR0(28)),
dump_register(DEPCMDPAR0(29)),
dump_register(DEPCMDPAR0(30)),
dump_register(DEPCMDPAR0(31)),
dump_register(DEPCMD(0)),
dump_register(DEPCMD(1)),
dump_register(DEPCMD(2)),
dump_register(DEPCMD(3)),
dump_register(DEPCMD(4)),
dump_register(DEPCMD(5)),
dump_register(DEPCMD(6)),
dump_register(DEPCMD(7)),
dump_register(DEPCMD(8)),
dump_register(DEPCMD(9)),
dump_register(DEPCMD(10)),
dump_register(DEPCMD(11)),
dump_register(DEPCMD(12)),
dump_register(DEPCMD(13)),
dump_register(DEPCMD(14)),
dump_register(DEPCMD(15)),
dump_register(DEPCMD(16)),
dump_register(DEPCMD(17)),
dump_register(DEPCMD(18)),
dump_register(DEPCMD(19)),
dump_register(DEPCMD(20)),
dump_register(DEPCMD(21)),
dump_register(DEPCMD(22)),
dump_register(DEPCMD(23)),
dump_register(DEPCMD(24)),
dump_register(DEPCMD(25)),
dump_register(DEPCMD(26)),
dump_register(DEPCMD(27)),
dump_register(DEPCMD(28)),
dump_register(DEPCMD(29)),
dump_register(DEPCMD(30)),
dump_register(DEPCMD(31)),
dump_register(OCFG),
dump_register(OCTL),
dump_register(OEVTEN),
dump_register(OSTS),
};
static int dwc3_regdump_show(struct seq_file *s, void *unused)
{
struct dwc3 *dwc = s->private;
int i;
seq_printf(s, "DesignWare USB3 Core Register Dump\n");
for (i = 0; i < ARRAY_SIZE(dwc3_regs); i++) {
seq_printf(s, "%-20s : %08x\n", dwc3_regs[i].name,
dwc3_readl(dwc->regs, dwc3_regs[i].offset));
}
return 0;
}
static int dwc3_regdump_open(struct inode *inode, struct file *file)
{
return single_open(file, dwc3_regdump_show, inode->i_private);
}
static const struct file_operations dwc3_regdump_fops = {
.open = dwc3_regdump_open,
.read = seq_read,
.release = single_release,
};
int __devinit dwc3_debugfs_init(struct dwc3 *dwc)
{
struct dentry *root;
struct dentry *file;
int ret;
root = debugfs_create_dir(dev_name(dwc->dev), NULL);
if (IS_ERR(root)){
ret = PTR_ERR(root);
goto err0;
}
dwc->root = root;
file = debugfs_create_file("regdump", S_IRUGO, root, dwc,
&dwc3_regdump_fops);
if (IS_ERR(file)) {
ret = PTR_ERR(file);
goto err1;
}
return 0;
err1:
debugfs_remove_recursive(root);
err0:
return ret;
}
void __devexit dwc3_debugfs_exit(struct dwc3 *dwc)
{
debugfs_remove_recursive(dwc->root);
dwc->root = NULL;
}
drivers/usb/dwc3/dwc3-omap.c 0 → 100644
浏览文件 @ 1be025d3
/**
* dwc3-omap.c - OMAP Specific Glue layer
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2, as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/platform_data/dwc3-omap.h>
#include <linux/dma-mapping.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/module.h>
#include "io.h"
/*
* All these registers belong to OMAP's Wrapper around the
* DesignWare USB3 Core.
*/
#define USBOTGSS_REVISION 0x0000
#define USBOTGSS_SYSCONFIG 0x0010
#define USBOTGSS_IRQ_EOI 0x0020
#define USBOTGSS_IRQSTATUS_RAW_0 0x0024
#define USBOTGSS_IRQSTATUS_0 0x0028
#define USBOTGSS_IRQENABLE_SET_0 0x002c
#define USBOTGSS_IRQENABLE_CLR_0 0x0030
#define USBOTGSS_IRQSTATUS_RAW_1 0x0034
#define USBOTGSS_IRQSTATUS_1 0x0038
#define USBOTGSS_IRQENABLE_SET_1 0x003c
#define USBOTGSS_IRQENABLE_CLR_1 0x0040
#define USBOTGSS_UTMI_OTG_CTRL 0x0080
#define USBOTGSS_UTMI_OTG_STATUS 0x0084
#define USBOTGSS_MMRAM_OFFSET 0x0100
#define USBOTGSS_FLADJ 0x0104
#define USBOTGSS_DEBUG_CFG 0x0108
#define USBOTGSS_DEBUG_DATA 0x010c
/* SYSCONFIG REGISTER */
#define USBOTGSS_SYSCONFIG_DMADISABLE (1 << 16)
#define USBOTGSS_SYSCONFIG_STANDBYMODE(x) ((x) << 4)
#define USBOTGSS_STANDBYMODE_FORCE_STANDBY 0
#define USBOTGSS_STANDBYMODE_NO_STANDBY 1
#define USBOTGSS_STANDBYMODE_SMART_STANDBY 2
#define USBOTGSS_STANDBYMODE_SMART_WAKEUP 3
#define USBOTGSS_STANDBYMODE_MASK (0x03 << 4)
#define USBOTGSS_SYSCONFIG_IDLEMODE(x) ((x) << 2)
#define USBOTGSS_IDLEMODE_FORCE_IDLE 0
#define USBOTGSS_IDLEMODE_NO_IDLE 1
#define USBOTGSS_IDLEMODE_SMART_IDLE 2
#define USBOTGSS_IDLEMODE_SMART_WAKEUP 3
#define USBOTGSS_IDLEMODE_MASK (0x03 << 2)
/* IRQ_EOI REGISTER */
#define USBOTGSS_IRQ_EOI_LINE_NUMBER (1 << 0)
/* IRQS0 BITS */
#define USBOTGSS_IRQO_COREIRQ_ST (1 << 0)
/* IRQ1 BITS */
#define USBOTGSS_IRQ1_DMADISABLECLR (1 << 17)
#define USBOTGSS_IRQ1_OEVT (1 << 16)
#define USBOTGSS_IRQ1_DRVVBUS_RISE (1 << 13)
#define USBOTGSS_IRQ1_CHRGVBUS_RISE (1 << 12)
#define USBOTGSS_IRQ1_DISCHRGVBUS_RISE (1 << 11)
#define USBOTGSS_IRQ1_IDPULLUP_RISE (1 << 8)
#define USBOTGSS_IRQ1_DRVVBUS_FALL (1 << 5)
#define USBOTGSS_IRQ1_CHRGVBUS_FALL (1 << 4)
#define USBOTGSS_IRQ1_DISCHRGVBUS_FALL (1 << 3)
#define USBOTGSS_IRQ1_IDPULLUP_FALL (1 << 0)
/* UTMI_OTG_CTRL REGISTER */
#define USBOTGSS_UTMI_OTG_CTRL_DRVVBUS (1 << 5)
#define USBOTGSS_UTMI_OTG_CTRL_CHRGVBUS (1 << 4)
#define USBOTGSS_UTMI_OTG_CTRL_DISCHRGVBUS (1 << 3)
#define USBOTGSS_UTMI_OTG_CTRL_IDPULLUP (1 << 0)
/* UTMI_OTG_STATUS REGISTER */
#define USBOTGSS_UTMI_OTG_STATUS_SW_MODE (1 << 31)
#define USBOTGSS_UTMI_OTG_STATUS_POWERPRESENT (1 << 9)
#define USBOTGSS_UTMI_OTG_STATUS_TXBITSTUFFENABLE (1 << 8)
#define USBOTGSS_UTMI_OTG_STATUS_IDDIG (1 << 4)
#define USBOTGSS_UTMI_OTG_STATUS_SESSEND (1 << 3)
#define USBOTGSS_UTMI_OTG_STATUS_SESSVALID (1 << 2)
#define USBOTGSS_UTMI_OTG_STATUS_VBUSVALID (1 << 1)
struct dwc3_omap {
/* device lock */
spinlock_t lock;
struct platform_device *dwc3;
struct device *dev;
int irq;
void __iomem *base;
void *context;
u32 resource_size;
u32 dma_status:1;
};
static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap)
{
struct dwc3_omap *omap = _omap;
u32 reg;
spin_lock(&omap->lock);
reg = dwc3_readl(omap->base, USBOTGSS_IRQSTATUS_1);
if (reg & USBOTGSS_IRQ1_DMADISABLECLR) {
dev_dbg(omap->dev, "DMA Disable was Cleared\n");
omap->dma_status = false;
}
if (reg & USBOTGSS_IRQ1_OEVT)
dev_dbg(omap->dev, "OTG Event\n");
if (reg & USBOTGSS_IRQ1_DRVVBUS_RISE)
dev_dbg(omap->dev, "DRVVBUS Rise\n");
if (reg & USBOTGSS_IRQ1_CHRGVBUS_RISE)
dev_dbg(omap->dev, "CHRGVBUS Rise\n");
if (reg & USBOTGSS_IRQ1_DISCHRGVBUS_RISE)
dev_dbg(omap->dev, "DISCHRGVBUS Rise\n");
if (reg & USBOTGSS_IRQ1_IDPULLUP_RISE)
dev_dbg(omap->dev, "IDPULLUP Rise\n");
if (reg & USBOTGSS_IRQ1_DRVVBUS_FALL)
dev_dbg(omap->dev, "DRVVBUS Fall\n");
if (reg & USBOTGSS_IRQ1_CHRGVBUS_FALL)
dev_dbg(omap->dev, "CHRGVBUS Fall\n");
if (reg & USBOTGSS_IRQ1_DISCHRGVBUS_FALL)
dev_dbg(omap->dev, "DISCHRGVBUS Fall\n");
if (reg & USBOTGSS_IRQ1_IDPULLUP_FALL)
dev_dbg(omap->dev, "IDPULLUP Fall\n");
dwc3_writel(omap->base, USBOTGSS_IRQSTATUS_1, reg);
reg = dwc3_readl(omap->base, USBOTGSS_IRQSTATUS_0);
dwc3_writel(omap->base, USBOTGSS_IRQSTATUS_0, reg);
spin_unlock(&omap->lock);
return IRQ_HANDLED;
}
static int __devinit dwc3_omap_probe(struct platform_device *pdev)
{
struct dwc3_omap_data *pdata = pdev->dev.platform_data;
struct platform_device *dwc3;
struct dwc3_omap *omap;
struct resource *res;
int ret = -ENOMEM;
int irq;
u32 reg;
void __iomem *base;
void *context;
omap = kzalloc(sizeof(*omap), GFP_KERNEL);
if (!omap) {
dev_err(&pdev->dev, "not enough memory\n");
goto err0;
}
platform_set_drvdata(pdev, omap);
irq = platform_get_irq(pdev, 1);
if (irq < 0) {
dev_err(&pdev->dev, "missing IRQ resource\n");
ret = -EINVAL;
goto err1;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res) {
dev_err(&pdev->dev, "missing memory base resource\n");
ret = -EINVAL;
goto err1;
}
base = ioremap_nocache(res->start, resource_size(res));
if (!base) {
dev_err(&pdev->dev, "ioremap failed\n");
goto err1;
}
dwc3 = platform_device_alloc("dwc3-omap", -1);
if (!dwc3) {
dev_err(&pdev->dev, "couldn't allocate dwc3 device\n");
goto err2;
}
context = kzalloc(resource_size(res), GFP_KERNEL);
if (!context) {
dev_err(&pdev->dev, "couldn't allocate dwc3 context memory\n");
goto err3;
}
spin_lock_init(&omap->lock);
dma_set_coherent_mask(&dwc3->dev, pdev->dev.coherent_dma_mask);
dwc3->dev.parent = &pdev->dev;
dwc3->dev.dma_mask = pdev->dev.dma_mask;
dwc3->dev.dma_parms = pdev->dev.dma_parms;
omap->resource_size = resource_size(res);
omap->context = context;
omap->dev = &pdev->dev;
omap->irq = irq;
omap->base = base;
omap->dwc3 = dwc3;
reg = dwc3_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS);
if (!pdata) {
dev_dbg(&pdev->dev, "missing platform data\n");
} else {
switch (pdata->utmi_mode) {
case DWC3_OMAP_UTMI_MODE_SW:
reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
break;
case DWC3_OMAP_UTMI_MODE_HW:
reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
break;
default:
dev_dbg(&pdev->dev, "UNKNOWN utmi mode %d\n",
pdata->utmi_mode);
}
}
dwc3_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS, reg);
/* check the DMA Status */
reg = dwc3_readl(omap->base, USBOTGSS_SYSCONFIG);
omap->dma_status = !!(reg & USBOTGSS_SYSCONFIG_DMADISABLE);
/* Set No-Idle and No-Standby */
reg &= ~(USBOTGSS_STANDBYMODE_MASK
| USBOTGSS_IDLEMODE_MASK);
reg |= (USBOTGSS_SYSCONFIG_STANDBYMODE(USBOTGSS_STANDBYMODE_NO_STANDBY)
| USBOTGSS_SYSCONFIG_IDLEMODE(USBOTGSS_IDLEMODE_NO_IDLE));
dwc3_writel(omap->base, USBOTGSS_SYSCONFIG, reg);
ret = request_irq(omap->irq, dwc3_omap_interrupt, 0,
"dwc3-omap", omap);
if (ret) {
dev_err(&pdev->dev, "failed to request IRQ #%d --> %d\n",
omap->irq, ret);
goto err4;
}
/* enable all IRQs */
reg = USBOTGSS_IRQO_COREIRQ_ST;
dwc3_writel(omap->base, USBOTGSS_IRQENABLE_SET_0, reg);
reg = (USBOTGSS_IRQ1_OEVT |
USBOTGSS_IRQ1_DRVVBUS_RISE |
USBOTGSS_IRQ1_CHRGVBUS_RISE |
USBOTGSS_IRQ1_DISCHRGVBUS_RISE |
USBOTGSS_IRQ1_IDPULLUP_RISE |
USBOTGSS_IRQ1_DRVVBUS_FALL |
USBOTGSS_IRQ1_CHRGVBUS_FALL |
USBOTGSS_IRQ1_DISCHRGVBUS_FALL |
USBOTGSS_IRQ1_IDPULLUP_FALL);
dwc3_writel(omap->base, USBOTGSS_IRQENABLE_SET_1, reg);
ret = platform_device_add_resources(dwc3, pdev->resource,
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "couldn't add resources to dwc3 device\n");
goto err5;
}
ret = platform_device_add(dwc3);
if (ret) {
dev_err(&pdev->dev, "failed to register dwc3 device\n");
goto err5;
}
return 0;
err5:
free_irq(omap->irq, omap);
err4:
kfree(omap->context);
err3:
platform_device_put(dwc3);
err2:
iounmap(base);
err1:
kfree(omap);
err0:
return ret;
}
static int __devexit dwc3_omap_remove(struct platform_device *pdev)
{
struct dwc3_omap *omap = platform_get_drvdata(pdev);
platform_device_unregister(omap->dwc3);
free_irq(omap->irq, omap);
iounmap(omap->base);
kfree(omap->context);
kfree(omap);
return 0;
}
static const struct of_device_id of_dwc3_matach[] = {
{
"ti,dwc3",
},
{ },
};
MODULE_DEVICE_TABLE(of, of_dwc3_matach);
static struct platform_driver dwc3_omap_driver = {
.probe = dwc3_omap_probe,
.remove = __devexit_p(dwc3_omap_remove),
.driver = {
.name = "omap-dwc3",
.of_match_table = of_dwc3_matach,
},
};
MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("DesignWare USB3 OMAP Glue Layer");
static int __devinit dwc3_omap_init(void)
{
return platform_driver_register(&dwc3_omap_driver);
}
module_init(dwc3_omap_init);
static void __exit dwc3_omap_exit(void)
{
platform_driver_unregister(&dwc3_omap_driver);
}
module_exit(dwc3_omap_exit);
drivers/usb/dwc3/dwc3-pci.c 0 → 100644
浏览文件 @ 1be025d3
/**
* dwc3-pci.c - PCI Specific glue layer
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2, as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
/* FIXME define these in <linux/pci_ids.h> */
#define PCI_VENDOR_ID_SYNOPSYS 0x16c3
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
#define DWC3_PCI_DEVS_POSSIBLE 32
struct dwc3_pci {
struct device *dev;
struct platform_device *dwc3;
};
static DECLARE_BITMAP(dwc3_pci_devs, DWC3_PCI_DEVS_POSSIBLE);
static int dwc3_pci_get_device_id(struct dwc3_pci *glue)
{
int id;
again:
id = find_first_zero_bit(dwc3_pci_devs, DWC3_PCI_DEVS_POSSIBLE);
if (id < DWC3_PCI_DEVS_POSSIBLE) {
int old;
old = test_and_set_bit(id, dwc3_pci_devs);
if (old)
goto again;
} else {
dev_err(glue->dev, "no space for new device\n");
id = -ENOMEM;
}
return 0;
}
static void dwc3_pci_put_device_id(struct dwc3_pci *glue, int id)
{
int ret;
if (id < 0)
return;
ret = test_bit(id, dwc3_pci_devs);
WARN(!ret, "Device: %s\nID %d not in use\n",
dev_driver_string(glue->dev), id);
clear_bit(id, dwc3_pci_devs);
}
static int __devinit dwc3_pci_probe(struct pci_dev *pci,
const struct pci_device_id *id)
{
struct resource res[2];
struct platform_device *dwc3;
struct dwc3_pci *glue;
int ret = -ENOMEM;
int devid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
dev_err(&pci->dev, "not enough memory\n");
goto err0;
}
glue->dev = &pci->dev;
ret = pci_enable_device(pci);
if (ret) {
dev_err(&pci->dev, "failed to enable pci device\n");
goto err1;
}
pci_set_power_state(pci, PCI_D0);
pci_set_master(pci);
devid = dwc3_pci_get_device_id(glue);
if (devid < 0)
goto err2;
dwc3 = platform_device_alloc("dwc3-pci", devid);
if (!dwc3) {
dev_err(&pci->dev, "couldn't allocate dwc3 device\n");
goto err3;
}
memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
res[0].start = pci_resource_start(pci, 0);
res[0].end = pci_resource_end(pci, 0);
res[0].name = "dwc_usb3";
res[0].flags = IORESOURCE_MEM;
res[1].start = pci->irq;
res[1].name = "dwc_usb3";
res[1].flags = IORESOURCE_IRQ;
ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
if (ret) {
dev_err(&pci->dev, "couldn't add resources to dwc3 device\n");
goto err4;
}
pci_set_drvdata(pci, glue);
dma_set_coherent_mask(&dwc3->dev, pci->dev.coherent_dma_mask);
dwc3->dev.dma_mask = pci->dev.dma_mask;
dwc3->dev.dma_parms = pci->dev.dma_parms;
dwc3->dev.parent = &pci->dev;
glue->dwc3 = dwc3;
ret = platform_device_add(dwc3);
if (ret) {
dev_err(&pci->dev, "failed to register dwc3 device\n");
goto err4;
}
return 0;
err4:
pci_set_drvdata(pci, NULL);
platform_device_put(dwc3);
err3:
dwc3_pci_put_device_id(glue, devid);
err2:
pci_disable_device(pci);
err1:
kfree(pci);
err0:
return ret;
}
static void __devexit dwc3_pci_remove(struct pci_dev *pci)
{
struct dwc3_pci *glue = pci_get_drvdata(pci);
dwc3_pci_put_device_id(glue, glue->dwc3->id);
platform_device_unregister(glue->dwc3);
pci_set_drvdata(pci, NULL);
pci_disable_device(pci);
kfree(glue);
}
static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
{
PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
},
{ } /* Terminating Entry */
};
MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
static struct pci_driver dwc3_pci_driver = {
.name = "pci-dwc3",
.id_table = dwc3_pci_id_table,
.probe = dwc3_pci_probe,
.remove = __devexit_p(dwc3_pci_remove),
};
MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
static int __devinit dwc3_pci_init(void)
{
return pci_register_driver(&dwc3_pci_driver);
}
module_init(dwc3_pci_init);
static void __exit dwc3_pci_exit(void)
{
pci_unregister_driver(&dwc3_pci_driver);
}
module_exit(dwc3_pci_exit);
drivers/usb/dwc3/ep0.c 0 → 100644
浏览文件 @ 1be025d3
/**
* ep0.c - DesignWare USB3 DRD Controller Endpoint 0 Handling
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2, as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/list.h>
#include <linux/dma-mapping.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include "core.h"
#include "gadget.h"
#include "io.h"
static void dwc3_ep0_inspect_setup(struct dwc3 *dwc,
const struct dwc3_event_depevt *event);
static const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
{
switch (state) {
case EP0_UNCONNECTED:
return "Unconnected";
case EP0_SETUP_PHASE:
return "Setup Phase";
case EP0_DATA_PHASE:
return "Data Phase";
case EP0_STATUS_PHASE:
return "Status Phase";
default:
return "UNKNOWN";
}
}
static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
u32 len, u32 type)
{
struct dwc3_gadget_ep_cmd_params params;
struct dwc3_trb_hw *trb_hw;
struct dwc3_trb trb;
struct dwc3_ep *dep;
int ret;
dep = dwc->eps[epnum];
if (dep->flags & DWC3_EP_BUSY) {
dev_vdbg(dwc->dev, "%s: still busy\n", dep->name);
return 0;
}
trb_hw = dwc->ep0_trb;
memset(&trb, 0, sizeof(trb));
trb.trbctl = type;
trb.bplh = buf_dma;
trb.length = len;
trb.hwo = 1;
trb.lst = 1;
trb.ioc = 1;
trb.isp_imi = 1;
dwc3_trb_to_hw(&trb, trb_hw);
memset(&params, 0, sizeof(params));
params.param0 = upper_32_bits(dwc->ep0_trb_addr);
params.param1 = lower_32_bits(dwc->ep0_trb_addr);
ret = dwc3_send_gadget_ep_cmd(dwc, dep->number,
DWC3_DEPCMD_STARTTRANSFER, &params);
if (ret < 0) {
dev_dbg(dwc->dev, "failed to send STARTTRANSFER command\n");
return ret;
}
dep->flags |= DWC3_EP_BUSY;
dep->res_trans_idx = dwc3_gadget_ep_get_transfer_index(dwc,
dep->number);
dwc->ep0_next_event = DWC3_EP0_COMPLETE;
return 0;
}
static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
struct dwc3_request *req)
{
int ret = 0;
req->request.actual = 0;
req->request.status = -EINPROGRESS;
req->epnum = dep->number;
list_add_tail(&req->list, &dep->request_list);
/*
* 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) {
struct dwc3 *dwc = dep->dwc;
unsigned direction;
u32 type;
direction = !!(dep->flags & DWC3_EP0_DIR_IN);
if (dwc->ep0state == EP0_STATUS_PHASE) {
type = dwc->three_stage_setup
? DWC3_TRBCTL_CONTROL_STATUS3
: DWC3_TRBCTL_CONTROL_STATUS2;
} else if (dwc->ep0state == EP0_DATA_PHASE) {
type = DWC3_TRBCTL_CONTROL_DATA;
} else {
/* should never happen */
WARN_ON(1);
return 0;
}
ret = dwc3_ep0_start_trans(dwc, direction,
req->request.dma, req->request.length, type);
dep->flags &= ~(DWC3_EP_PENDING_REQUEST |
DWC3_EP0_DIR_IN);
}
return ret;
}
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);
if (!dep->desc) {
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 */
if (!list_empty(&dwc->eps[0]->request_list) ||
!list_empty(&dwc->eps[1]->request_list) ||
dwc->ep0_status_pending) {
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)
{
struct dwc3_ep *dep = dwc->eps[0];
/* stall is always issued on EP0 */
__dwc3_gadget_ep_set_halt(dwc->eps[0], 1);
dwc->eps[0]->flags = DWC3_EP_ENABLED;
if (!list_empty(&dep->request_list)) {
struct dwc3_request *req;
req = next_request(&dep->request_list);
dwc3_gadget_giveback(dep, req, -ECONNRESET);
}
dwc->ep0state = EP0_SETUP_PHASE;
dwc3_ep0_out_start(dwc);
}
void dwc3_ep0_out_start(struct dwc3 *dwc)
{
int ret;
ret = dwc3_ep0_start_trans(dwc, 0, dwc->ctrl_req_addr, 8,
DWC3_TRBCTL_CONTROL_SETUP);
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;
}
static void dwc3_ep0_send_status_response(struct dwc3 *dwc)
{
dwc3_ep0_start_trans(dwc, 1, dwc->setup_buf_addr,
dwc->ep0_usb_req.length,
DWC3_TRBCTL_CONTROL_DATA);
}
/*
* ch 9.4.5
*/
static int dwc3_ep0_handle_status(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
{
struct dwc3_ep *dep;
u32 recip;
u16 usb_status = 0;
__le16 *response_pkt;
recip = ctrl->bRequestType & USB_RECIP_MASK;
switch (recip) {
case USB_RECIP_DEVICE:
/*
* We are self-powered. U1/U2/LTM will be set later
* once we handle this states. RemoteWakeup is 0 on SS
*/
usb_status |= dwc->is_selfpowered << USB_DEVICE_SELF_POWERED;
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)
return -EINVAL;
if (dep->flags & DWC3_EP_STALL)
usb_status = 1 << USB_ENDPOINT_HALT;
break;
default:
return -EINVAL;
};
response_pkt = (__le16 *) dwc->setup_buf;
*response_pkt = cpu_to_le16(usb_status);
dwc->ep0_usb_req.length = sizeof(*response_pkt);
dwc->ep0_status_pending = 1;
return 0;
}
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;
u32 reg;
int ret;
u32 mode;
wValue = le16_to_cpu(ctrl->wValue);
wIndex = le16_to_cpu(ctrl->wIndex);
recip = ctrl->bRequestType & USB_RECIP_MASK;
switch (recip) {
case USB_RECIP_DEVICE:
/*
* 9.4.1 says only only for SS, in AddressState only for
* default control pipe
*/
switch (wValue) {
case USB_DEVICE_U1_ENABLE:
case USB_DEVICE_U2_ENABLE:
case USB_DEVICE_LTM_ENABLE:
if (dwc->dev_state != DWC3_CONFIGURED_STATE)
return -EINVAL;
if (dwc->speed != DWC3_DSTS_SUPERSPEED)
return -EINVAL;
}
/* XXX add U[12] & LTM */
switch (wValue) {
case USB_DEVICE_REMOTE_WAKEUP:
break;
case USB_DEVICE_U1_ENABLE:
break;
case USB_DEVICE_U2_ENABLE:
break;
case USB_DEVICE_LTM_ENABLE:
break;
case USB_DEVICE_TEST_MODE:
if ((wIndex & 0xff) != 0)
return -EINVAL;
if (!set)
return -EINVAL;
mode = wIndex >> 8;
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
reg &= ~DWC3_DCTL_TSTCTRL_MASK;
switch (mode) {
case TEST_J:
case TEST_K:
case TEST_SE0_NAK:
case TEST_PACKET:
case TEST_FORCE_EN:
reg |= mode << 1;
break;
default:
return -EINVAL;
}
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
break;
default:
return -EINVAL;
}
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:
dep = dwc3_wIndex_to_dep(dwc, ctrl->wIndex);
if (!dep)
return -EINVAL;
ret = __dwc3_gadget_ep_set_halt(dep, set);
if (ret)
return -EINVAL;
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
};
return 0;
}
static int dwc3_ep0_set_address(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
{
u32 addr;
u32 reg;
addr = le16_to_cpu(ctrl->wValue);
if (addr > 127)
return -EINVAL;
reg = dwc3_readl(dwc->regs, DWC3_DCFG);
reg &= ~(DWC3_DCFG_DEVADDR_MASK);
reg |= DWC3_DCFG_DEVADDR(addr);
dwc3_writel(dwc->regs, DWC3_DCFG, reg);
if (addr)
dwc->dev_state = DWC3_ADDRESS_STATE;
else
dwc->dev_state = DWC3_DEFAULT_STATE;
return 0;
}
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)
{
u32 cfg;
int ret;
dwc->start_config_issued = false;
cfg = le16_to_cpu(ctrl->wValue);
switch (dwc->dev_state) {
case DWC3_DEFAULT_STATE:
return -EINVAL;
break;
case DWC3_ADDRESS_STATE:
ret = dwc3_ep0_delegate_req(dwc, ctrl);
/* if the cfg matches and the cfg is non zero */
if (!ret && cfg)
dwc->dev_state = DWC3_CONFIGURED_STATE;
break;
case DWC3_CONFIGURED_STATE:
ret = dwc3_ep0_delegate_req(dwc, ctrl);
if (!cfg)
dwc->dev_state = DWC3_ADDRESS_STATE;
break;
}
return 0;
}
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;
default:
dev_vdbg(dwc->dev, "Forwarding to gadget driver\n");
ret = dwc3_ep0_delegate_req(dwc, ctrl);
break;
};
return ret;
}
static void dwc3_ep0_inspect_setup(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
struct usb_ctrlrequest *ctrl = dwc->ctrl_req;
int ret;
u32 len;
if (!dwc->gadget_driver)
goto err;
len = le16_to_cpu(ctrl->wLength);
if (!len) {
dwc->three_stage_setup = false;
dwc->ep0_expect_in = false;
dwc->ep0_next_event = DWC3_EP0_NRDY_STATUS;
} else {
dwc->three_stage_setup = true;
dwc->ep0_expect_in = !!(ctrl->bRequestType & USB_DIR_IN);
dwc->ep0_next_event = DWC3_EP0_NRDY_DATA;
}
if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD)
ret = dwc3_ep0_std_request(dwc, ctrl);
else
ret = dwc3_ep0_delegate_req(dwc, ctrl);
if (ret >= 0)
return;
err:
dwc3_ep0_stall_and_restart(dwc);
}
static void dwc3_ep0_complete_data(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
struct dwc3_request *r = NULL;
struct usb_request *ur;
struct dwc3_trb trb;
struct dwc3_ep *dep;
u32 transferred;
u8 epnum;
epnum = event->endpoint_number;
dep = dwc->eps[epnum];
dwc->ep0_next_event = DWC3_EP0_NRDY_STATUS;
if (!dwc->ep0_status_pending) {
r = next_request(&dwc->eps[0]->request_list);
ur = &r->request;
} else {
ur = &dwc->ep0_usb_req;
dwc->ep0_status_pending = 0;
}
dwc3_trb_to_nat(dwc->ep0_trb, &trb);
if (dwc->ep0_bounced) {
struct dwc3_ep *ep0 = dwc->eps[0];
transferred = min_t(u32, ur->length,
ep0->endpoint.maxpacket - trb.length);
memcpy(ur->buf, dwc->ep0_bounce, transferred);
dwc->ep0_bounced = false;
} else {
transferred = ur->length - trb.length;
ur->actual += transferred;
}
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)
dwc3_gadget_giveback(dep, r, 0);
}
}
static void dwc3_ep0_complete_req(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
struct dwc3_request *r;
struct dwc3_ep *dep;
dep = dwc->eps[0];
if (!list_empty(&dep->request_list)) {
r = next_request(&dep->request_list);
dwc3_gadget_giveback(dep, r, 0);
}
dwc->ep0state = EP0_SETUP_PHASE;
dwc3_ep0_out_start(dwc);
}
static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
struct dwc3_ep *dep = dwc->eps[event->endpoint_number];
dep->flags &= ~DWC3_EP_BUSY;
switch (dwc->ep0state) {
case EP0_SETUP_PHASE:
dev_vdbg(dwc->dev, "Inspecting Setup Bytes\n");
dwc3_ep0_inspect_setup(dwc, event);
break;
case EP0_DATA_PHASE:
dev_vdbg(dwc->dev, "Data Phase\n");
dwc3_ep0_complete_data(dwc, event);
break;
case EP0_STATUS_PHASE:
dev_vdbg(dwc->dev, "Status Phase\n");
dwc3_ep0_complete_req(dwc, event);
break;
default:
WARN(true, "UNKNOWN ep0state %d\n", dwc->ep0state);
}
}
static void dwc3_ep0_do_control_setup(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
dwc->ep0state = EP0_SETUP_PHASE;
dwc3_ep0_out_start(dwc);
}
static void dwc3_ep0_do_control_data(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
struct dwc3_ep *dep;
struct dwc3_request *req;
int ret;
dep = dwc->eps[0];
dwc->ep0state = EP0_DATA_PHASE;
if (dwc->ep0_status_pending) {
dwc3_ep0_send_status_response(dwc);
return;
}
if (list_empty(&dep->request_list)) {
dev_vdbg(dwc->dev, "pending request for EP0 Data phase\n");
dep->flags |= DWC3_EP_PENDING_REQUEST;
if (event->endpoint_number)
dep->flags |= DWC3_EP0_DIR_IN;
return;
}
req = next_request(&dep->request_list);
req->direction = !!event->endpoint_number;
dwc->ep0state = EP0_DATA_PHASE;
if (req->request.length == 0) {
ret = dwc3_ep0_start_trans(dwc, event->endpoint_number,
dwc->ctrl_req_addr, 0,
DWC3_TRBCTL_CONTROL_DATA);
} else if ((req->request.length % dep->endpoint.maxpacket)
&& (event->endpoint_number == 0)) {
dwc3_map_buffer_to_dma(req);
WARN_ON(req->request.length > dep->endpoint.maxpacket);
dwc->ep0_bounced = true;
/*
* REVISIT in case request length is bigger than EP0
* wMaxPacketSize, we will need two chained TRBs to handle
* the transfer.
*/
ret = dwc3_ep0_start_trans(dwc, event->endpoint_number,
dwc->ep0_bounce_addr, dep->endpoint.maxpacket,
DWC3_TRBCTL_CONTROL_DATA);
} else {
dwc3_map_buffer_to_dma(req);
ret = dwc3_ep0_start_trans(dwc, event->endpoint_number,
req->request.dma, req->request.length,
DWC3_TRBCTL_CONTROL_DATA);
}
WARN_ON(ret < 0);
}
static void dwc3_ep0_do_control_status(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
u32 type;
int ret;
dwc->ep0state = EP0_STATUS_PHASE;
type = dwc->three_stage_setup ? DWC3_TRBCTL_CONTROL_STATUS3
: DWC3_TRBCTL_CONTROL_STATUS2;
ret = dwc3_ep0_start_trans(dwc, event->endpoint_number,
dwc->ctrl_req_addr, 0, type);
WARN_ON(ret < 0);
}
static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
switch (event->status) {
case DEPEVT_STATUS_CONTROL_SETUP:
dev_vdbg(dwc->dev, "Control Setup\n");
dwc3_ep0_do_control_setup(dwc, event);
break;
case DEPEVT_STATUS_CONTROL_DATA:
dev_vdbg(dwc->dev, "Control Data\n");
if (dwc->ep0_next_event != DWC3_EP0_NRDY_DATA) {
dev_vdbg(dwc->dev, "Expected %d got %d\n",
dwc->ep0_next_event,
DWC3_EP0_NRDY_DATA);
dwc3_ep0_stall_and_restart(dwc);
return;
}
/*
* One of the possible error cases is when Host _does_
* request for Data Phase, but it does so on the wrong
* direction.
*
* Here, we already know ep0_next_event is DATA (see above),
* so we only need to check for direction.
*/
if (dwc->ep0_expect_in != event->endpoint_number) {
dev_vdbg(dwc->dev, "Wrong direction for Data phase\n");
dwc3_ep0_stall_and_restart(dwc);
return;
}
dwc3_ep0_do_control_data(dwc, event);
break;
case DEPEVT_STATUS_CONTROL_STATUS:
dev_vdbg(dwc->dev, "Control Status\n");
if (dwc->ep0_next_event != DWC3_EP0_NRDY_STATUS) {
dev_vdbg(dwc->dev, "Expected %d got %d\n",
dwc->ep0_next_event,
DWC3_EP0_NRDY_STATUS);
dwc3_ep0_stall_and_restart(dwc);
return;
}
dwc3_ep0_do_control_status(dwc, event);
}
}
void dwc3_ep0_interrupt(struct dwc3 *dwc,
const const struct dwc3_event_depevt *event)
{
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),
epnum >> 1, (epnum & 1) ? "in" : "out",
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;
}
}
drivers/usb/dwc3/gadget.c 0 → 100644
浏览文件 @ 1be025d3
此差异已折叠。
drivers/usb/dwc3/gadget.h 0 → 100644
浏览文件 @ 1be025d3
/**
* gadget.h - DesignWare USB3 DRD Gadget Header
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2, as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DRIVERS_USB_DWC3_GADGET_H
#define __DRIVERS_USB_DWC3_GADGET_H
#include <linux/list.h>
#include <linux/usb/gadget.h>
#include "io.h"
struct dwc3;
#define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint))
#define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget))
/* DEPCFG parameter 1 */
#define DWC3_DEPCFG_INT_NUM(n) ((n) << 0)
#define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8)
#define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9)
#define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10)
#define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11)
#define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13)
#define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16)
#define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24)
#define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25)
#define DWC3_DEPCFG_BULK_BASED (1 << 30)
#define DWC3_DEPCFG_FIFO_BASED (1 << 31)
/* DEPCFG parameter 0 */
#define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1)
#define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3)
#define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17)
#define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22)
#define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26)
#define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31)
/* DEPXFERCFG parameter 0 */
#define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff)
struct dwc3_gadget_ep_cmd_params {
u32 param2;
u32 param1;
u32 param0;
};
/* -------------------------------------------------------------------------- */
struct dwc3_request {
struct usb_request request;
struct list_head list;
struct dwc3_ep *dep;
u8 epnum;
struct dwc3_trb_hw *trb;
dma_addr_t trb_dma;
unsigned direction:1;
unsigned mapped:1;
unsigned queued:1;
};
#define to_dwc3_request(r) (container_of(r, struct dwc3_request, request))
static inline struct dwc3_request *next_request(struct list_head *list)
{
if (list_empty(list))
return NULL;
return list_first_entry(list, struct dwc3_request, list);
}
static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req)
{
struct dwc3_ep *dep = req->dep;
req->queued = true;
list_move_tail(&req->list, &dep->req_queued);
}
#if defined(CONFIG_USB_GADGET_DWC3) || defined(CONFIG_USB_GADGET_DWC3_MODULE)
int dwc3_gadget_init(struct dwc3 *dwc);
void dwc3_gadget_exit(struct dwc3 *dwc);
#else
static inline int dwc3_gadget_init(struct dwc3 *dwc) { return 0; }
static inline void dwc3_gadget_exit(struct dwc3 *dwc) { }
static inline int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
unsigned cmd, struct dwc3_gadget_ep_cmd_params *params)
{
return 0;
}
#endif
void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
int status);
void dwc3_ep0_interrupt(struct dwc3 *dwc, const struct dwc3_event_depevt *event);
void dwc3_ep0_out_start(struct dwc3 *dwc);
int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
gfp_t gfp_flags);
int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value);
int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
unsigned cmd, struct dwc3_gadget_ep_cmd_params *params);
void dwc3_map_buffer_to_dma(struct dwc3_request *req);
void dwc3_unmap_buffer_from_dma(struct dwc3_request *req);
/**
* dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
* @dwc: DesignWare USB3 Pointer
* @number: DWC endpoint number
*
* Caller should take care of locking
*/
static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number)
{
u32 res_id;
res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number));
return DWC3_DEPCMD_GET_RSC_IDX(res_id);
}
/**
* dwc3_gadget_event_string - returns event name
* @event: the event code
*/
static inline const char *dwc3_gadget_event_string(u8 event)
{
switch (event) {
case DWC3_DEVICE_EVENT_DISCONNECT:
return "Disconnect";
case DWC3_DEVICE_EVENT_RESET:
return "Reset";
case DWC3_DEVICE_EVENT_CONNECT_DONE:
return "Connection Done";
case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
return "Link Status Change";
case DWC3_DEVICE_EVENT_WAKEUP:
return "WakeUp";
case DWC3_DEVICE_EVENT_EOPF:
return "End-Of-Frame";
case DWC3_DEVICE_EVENT_SOF:
return "Start-Of-Frame";
case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
return "Erratic Error";
case DWC3_DEVICE_EVENT_CMD_CMPL:
return "Command Complete";
case DWC3_DEVICE_EVENT_OVERFLOW:
return "Overflow";
}
return "UNKNOWN";
}
/**
* dwc3_ep_event_string - returns event name
* @event: then event code
*/
static inline const char *dwc3_ep_event_string(u8 event)
{
switch (event) {
case DWC3_DEPEVT_XFERCOMPLETE:
return "Transfer Complete";
case DWC3_DEPEVT_XFERINPROGRESS:
return "Transfer In-Progress";
case DWC3_DEPEVT_XFERNOTREADY:
return "Transfer Not Ready";
case DWC3_DEPEVT_RXTXFIFOEVT:
return "FIFO";
case DWC3_DEPEVT_STREAMEVT:
return "Stream";
case DWC3_DEPEVT_EPCMDCMPLT:
return "Endpoint Command Complete";
}
return "UNKNOWN";
}
#endif /* __DRIVERS_USB_DWC3_GADGET_H */
drivers/usb/dwc3/io.h 0 → 100644
浏览文件 @ 1be025d3
/**
* io.h - DesignWare USB3 DRD IO Header
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the above-listed copyright holders may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2, as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DRIVERS_USB_DWC3_IO_H
#define __DRIVERS_USB_DWC3_IO_H
#include <asm/io.h>
static inline u32 dwc3_readl(void __iomem *base, u32 offset)
{
return readl(base + offset);
}
static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value)
{
writel(value, base + offset);
}
#endif /* __DRIVERS_USB_DWC3_IO_H */
drivers/usb/gadget/Kconfig
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......@@ -96,6 +96,22 @@ config USB_GADGET_VBUS_DRAW
This value will be used except for system-specific gadget
drivers that have more specific information.
config USB_GADGET_STORAGE_NUM_BUFFERS
int "Number of storage pipeline buffers"
range 2 4
default 2
help
Usually 2 buffers are enough to establish a good buffering
pipeline. The number may be increased in order to compensate
for a bursty VFS behaviour. For instance there may be CPU wake up
latencies that makes the VFS to appear bursty in a system with
an CPU on-demand governor. Especially if DMA is doing IO to
offload the CPU. In this case the CPU will go into power
save often and spin up occasionally to move data within VFS.
If selecting USB_GADGET_DEBUG_FILES this value may be set by
a module parameter as well.
If unsure, say 2.
#
# USB Peripheral Controller Support
#
......@@ -255,12 +271,11 @@ config USB_S3C_HSOTG
integrated into the S3C64XX series SoC.
config USB_IMX
tristate "Freescale IMX USB Peripheral Controller"
depends on ARCH_MX1
tristate "Freescale i.MX1 USB Peripheral Controller"
depends on ARCH_MXC
help
Freescale's IMX series include an integrated full speed
USB 1.1 device controller. The controller in the IMX series
is register-compatible.
Freescale's i.MX1 includes an integrated full speed
USB 1.1 device controller.
It has Six fixed-function endpoints, as well as endpoint
zero (for control transfers).
......@@ -303,6 +318,18 @@ config USB_PXA_U2O
PXA9xx Processor series include a high speed USB2.0 device
controller, which support high speed and full speed USB peripheral.
config USB_GADGET_DWC3
tristate "DesignWare USB3.0 (DRD) Controller"
depends on USB_DWC3
select USB_GADGET_DUALSPEED
select USB_GADGET_SUPERSPEED
help
DesignWare USB3.0 controller is a SuperSpeed USB3.0 Controller
which can be configured for peripheral-only, host-only, hub-only
and Dual-Role operation. This Controller was first integrated into
the OMAP5 series of processors. More information about the OMAP5
version of this controller, refer to http://www.ti.com/omap5.
#
# Controllers available in both integrated and discrete versions
#
......@@ -846,6 +873,16 @@ config USB_G_NOKIA
It's only really useful for N900 hardware. If you're building
a kernel for N900, say Y or M here. If unsure, say N.
config USB_G_ACM_MS
tristate "CDC Composite Device (ACM and mass storage)"
depends on BLOCK
help
This driver provides two functions in one configuration:
a mass storage, and a CDC ACM (serial port) link.
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "g_acm_ms".
config USB_G_MULTI
tristate "Multifunction Composite Gadget (EXPERIMENTAL)"
depends on BLOCK && NET
......
drivers/usb/gadget/Makefile
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......@@ -28,7 +28,7 @@ obj-$(CONFIG_USB_S3C_HSUDC) += s3c-hsudc.o
obj-$(CONFIG_USB_LANGWELL) += langwell_udc.o
obj-$(CONFIG_USB_EG20T) += pch_udc.o
obj-$(CONFIG_USB_PXA_U2O) += mv_udc.o
mv_udc-y := mv_udc_core.o mv_udc_phy.o
mv_udc-y := mv_udc_core.o
obj-$(CONFIG_USB_CI13XXX_MSM) += ci13xxx_msm.o
obj-$(CONFIG_USB_FUSB300) += fusb300_udc.o
......@@ -51,6 +51,7 @@ g_dbgp-y := dbgp.o
g_nokia-y := nokia.o
g_webcam-y := webcam.o
g_ncm-y := ncm.o
g_acm_ms-y := acm_ms.o
obj-$(CONFIG_USB_ZERO) += g_zero.o
obj-$(CONFIG_USB_AUDIO) += g_audio.o
......@@ -69,3 +70,4 @@ obj-$(CONFIG_USB_G_MULTI) += g_multi.o
obj-$(CONFIG_USB_G_NOKIA) += g_nokia.o
obj-$(CONFIG_USB_G_WEBCAM) += g_webcam.o
obj-$(CONFIG_USB_G_NCM) += g_ncm.o
obj-$(CONFIG_USB_G_ACM_MS) += g_acm_ms.o
drivers/usb/gadget/acm_ms.c 0 → 100644
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drivers/usb/gadget/amd5536udc.c
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drivers/usb/gadget/amd5536udc.h
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......@@ -8,15 +8,6 @@
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef AMD5536UDC_H
......
drivers/usb/gadget/at91_udc.c
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drivers/usb/gadget/at91_udc.h
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drivers/usb/gadget/atmel_usba_udc.c
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drivers/usb/gadget/cdc2.c
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drivers/usb/gadget/ci13xxx_msm.c
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drivers/usb/gadget/ci13xxx_udc.c
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mEp->num = usb_endpoint_num(desc);
mEp->type = usb_endpoint_type(desc);
mEp->ep.maxpacket = __constant_le16_to_cpu(desc->wMaxPacketSize);
mEp->ep.maxpacket = usb_endpoint_maxp(desc);
dbg_event(_usb_addr(mEp), "ENABLE", 0);
......
drivers/usb/gadget/composite.c
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drivers/usb/gadget/config.c
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drivers/usb/gadget/dbgp.c
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drivers/usb/gadget/dummy_hcd.c
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drivers/usb/gadget/epautoconf.c
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drivers/usb/gadget/ether.c
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drivers/usb/gadget/f_audio.c
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drivers/usb/gadget/f_ecm.c
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drivers/usb/gadget/f_eem.c
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drivers/usb/gadget/f_fs.c
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drivers/usb/gadget/f_hid.c
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drivers/usb/gadget/f_loopback.c
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drivers/usb/gadget/f_mass_storage.c
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drivers/usb/gadget/f_ncm.c
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drivers/usb/gadget/f_obex.c
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drivers/usb/gadget/f_phonet.c
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drivers/usb/gadget/f_rndis.c
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drivers/usb/gadget/f_sourcesink.c
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drivers/usb/gadget/f_subset.c
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drivers/usb/gadget/f_uvc.c
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drivers/usb/gadget/f_uvc.h
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drivers/usb/gadget/file_storage.c
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drivers/usb/gadget/fsl_qe_udc.c
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drivers/usb/gadget/fsl_udc_core.c
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drivers/usb/gadget/fusb300_udc.c
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drivers/usb/gadget/fusb300_udc.h
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drivers/usb/gadget/g_ffs.c
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drivers/usb/gadget/gadget_chips.h
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drivers/usb/gadget/gmidi.c
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drivers/usb/gadget/hid.c
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drivers/usb/gadget/imx_udc.c
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drivers/usb/gadget/imx_udc.h
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drivers/usb/gadget/inode.c
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drivers/usb/gadget/langwell_udc.c
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drivers/usb/gadget/langwell_udc.h
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drivers/usb/gadget/m66592-udc.c
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drivers/usb/gadget/m66592-udc.h
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drivers/usb/gadget/mass_storage.c
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drivers/usb/gadget/multi.c
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drivers/usb/gadget/mv_udc.h
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drivers/usb/gadget/mv_udc_core.c
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drivers/usb/gadget/ncm.c
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drivers/usb/gadget/ndis.h
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drivers/usb/gadget/net2272.c
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drivers/usb/gadget/net2280.c
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drivers/usb/gadget/net2280.h
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drivers/usb/gadget/omap_udc.c
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drivers/usb/gadget/pch_udc.c
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drivers/usb/gadget/printer.c
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drivers/usb/gadget/pxa25x_udc.c
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drivers/usb/gadget/pxa25x_udc.h
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drivers/usb/gadget/pxa27x_udc.c
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drivers/usb/gadget/pxa27x_udc.h
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drivers/usb/gadget/r8a66597-udc.c
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drivers/usb/gadget/r8a66597-udc.h
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drivers/usb/gadget/s3c-hsotg.c
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drivers/usb/gadget/s3c-hsudc.c
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drivers/usb/gadget/s3c2410_udc.c
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drivers/usb/gadget/s3c2410_udc.h
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drivers/usb/gadget/storage_common.c
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drivers/usb/gadget/u_ether.c
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drivers/usb/gadget/u_ether.h
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drivers/usb/gadget/u_serial.c
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drivers/usb/gadget/udc-core.c
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drivers/usb/gadget/uvc.h
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drivers/usb/gadget/uvc_video.c
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drivers/usb/gadget/webcam.c
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drivers/usb/gadget/zero.c
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drivers/usb/host/Kconfig
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drivers/usb/host/Makefile
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drivers/usb/host/ehci-ath79.c
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drivers/usb/host/ehci-au1xxx.c
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drivers/usb/host/ehci-dbg.c
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drivers/usb/host/ehci-fsl.c
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drivers/usb/host/ehci-hcd.c
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drivers/usb/host/ehci-hub.c
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drivers/usb/host/ehci-mxc.c
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drivers/usb/host/ehci-octeon.c
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drivers/usb/host/ehci-omap.c
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drivers/usb/host/ehci-orion.c
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drivers/usb/host/ehci-pci.c
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drivers/usb/host/ehci-ps3.c
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drivers/usb/host/ehci-q.c
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drivers/usb/host/ehci-s5p.c
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drivers/usb/host/ehci-sched.c
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drivers/usb/host/ehci-sh.c
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drivers/usb/host/ehci-spear.c
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drivers/usb/host/ehci-tegra.c
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drivers/usb/host/ehci-vt8500.c
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drivers/usb/host/ehci.h
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drivers/usb/host/fhci-hcd.c
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drivers/usb/host/fhci-sched.c
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drivers/usb/host/imx21-hcd.c
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drivers/usb/host/isp116x-hcd.c
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drivers/usb/host/isp1362-hcd.c
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drivers/usb/host/isp1760-hcd.c
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drivers/usb/host/isp1760-hcd.h
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drivers/usb/host/isp1760-if.c
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drivers/usb/host/ohci-ath79.c
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drivers/usb/host/ohci-da8xx.c
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drivers/usb/host/ohci-ep93xx.c
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drivers/usb/host/ohci-hub.c
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drivers/usb/host/ohci-octeon.c
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drivers/usb/host/ohci-omap.c
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drivers/usb/host/ohci-omap3.c
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drivers/usb/host/ohci-pnx4008.c
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drivers/usb/host/ohci-pnx8550.c
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drivers/usb/host/ohci-ppc-of.c
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drivers/usb/host/ohci-ppc-soc.c
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drivers/usb/host/ohci-ps3.c
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drivers/usb/host/ohci-pxa27x.c
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drivers/usb/host/ohci-q.c
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drivers/usb/host/ohci-s3c2410.c
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drivers/usb/host/ohci-sa1111.c
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drivers/usb/host/ohci-sh.c
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drivers/usb/host/ohci-spear.c
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drivers/usb/host/ohci-ssb.c
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drivers/usb/host/ohci-tmio.c
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drivers/usb/host/r8a66597-hcd.c
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drivers/usb/host/sl811-hcd.c
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drivers/usb/host/uhci-hcd.c
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drivers/usb/host/uhci-q.c
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drivers/usb/host/xhci-ext-caps.h
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drivers/usb/host/xhci-hub.c
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drivers/usb/host/xhci-mem.c
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drivers/usb/host/xhci-pci.c
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drivers/usb/host/xhci-ring.c
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drivers/usb/host/xhci.c
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drivers/usb/host/xhci.h
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drivers/usb/misc/adutux.c
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drivers/usb/misc/ftdi-elan.c
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drivers/usb/misc/idmouse.c
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drivers/usb/misc/iowarrior.c
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drivers/usb/misc/ldusb.c
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drivers/usb/misc/legousbtower.c
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drivers/usb/misc/usblcd.c
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drivers/usb/misc/usbled.c
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drivers/usb/misc/usbtest.c
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drivers/usb/mon/mon_bin.c
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drivers/usb/musb/musb_gadget.c
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drivers/usb/musb/musb_gadget_ep0.c
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drivers/usb/musb/musb_host.c
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drivers/usb/musb/musbhsdma.c
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drivers/usb/otg/isp1301_omap.c
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drivers/usb/otg/twl6030-usb.c
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drivers/usb/renesas_usbhs/Kconfig
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drivers/usb/renesas_usbhs/Makefile
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drivers/usb/renesas_usbhs/common.c
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drivers/usb/renesas_usbhs/common.h
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drivers/usb/renesas_usbhs/fifo.c
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drivers/usb/renesas_usbhs/fifo.h
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drivers/usb/renesas_usbhs/mod.c
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drivers/usb/renesas_usbhs/mod.h
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drivers/usb/renesas_usbhs/mod_host.c 0 → 100644
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drivers/usb/renesas_usbhs/pipe.c
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drivers/usb/renesas_usbhs/pipe.h
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drivers/usb/serial/Kconfig
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drivers/usb/serial/ftdi_sio.c
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drivers/usb/serial/ftdi_sio_ids.h
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drivers/usb/serial/io_edgeport.c
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drivers/usb/serial/ipw.c
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drivers/usb/serial/opticon.c
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drivers/usb/serial/option.c
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drivers/usb/serial/pl2303.c
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drivers/usb/serial/pl2303.h
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drivers/usb/serial/qcserial.c
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drivers/usb/serial/symbolserial.c
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drivers/usb/serial/usb-serial.c
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drivers/usb/storage/Kconfig
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drivers/usb/storage/realtek_cr.c
浏览文件 @ 1be025d3
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drivers/usb/storage/transport.c
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drivers/usb/storage/usb.c
浏览文件 @ 1be025d3
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drivers/usb/usb-common.c 0 → 100644
浏览文件 @ 1be025d3
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drivers/usb/usb-skeleton.c
浏览文件 @ 1be025d3
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drivers/usb/wusbcore/wa-hc.c
浏览文件 @ 1be025d3
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include/linux/platform_data/dwc3-omap.h 0 → 100644
浏览文件 @ 1be025d3
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include/linux/platform_data/mv_usb.h 0 → 100644
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include/linux/sched.h
浏览文件 @ 1be025d3
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include/linux/usb.h
浏览文件 @ 1be025d3
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include/linux/usb/ch9.h
浏览文件 @ 1be025d3
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include/linux/usb/gadget.h
浏览文件 @ 1be025d3
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include/linux/usb/hcd.h
浏览文件 @ 1be025d3
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include/linux/usb/r8a66597.h
浏览文件 @ 1be025d3
此差异已折叠。
include/linux/usb/renesas_usbhs.h
浏览文件 @ 1be025d3
此差异已折叠。
kernel/signal.c
浏览文件 @ 1be025d3
此差异已折叠。
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