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Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

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* '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
  ...
This commit is contained in:
Linus Torvalds 2011-10-25 12:23:15 +02:00
commit 1be025d3cb
247 changed files with 15147 additions and 4186 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
Documentation/ABI/testing/sysfs-bus-pci-drivers-ehci_hcd Normal file
View File

@ -0,0 +1,46 @@
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).

15
Documentation/ABI/testing/sysfs-bus-usb
View File

@ -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.

45
Documentation/usb/dwc3.txt Normal file
View File

@ -0,0 +1,45 @@
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).

26
Documentation/usb/power-management.txt
View File

@ -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.

8
MAINTAINERS
View File

@ -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

7
arch/arm/mach-mmp/include/mach/pxa168.h
View File

@ -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;

46
arch/arm/mach-mmp/pxa168.c
View File

@ -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);
}

11
arch/arm/mach-omap2/Makefile
View File

@ -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

1
arch/arm/mach-shmobile/board-mackerel.c
View File

@ -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,

16
drivers/usb/Kconfig
View File

@ -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"

4
drivers/usb/Makefile
View File

@ -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

9
drivers/usb/class/cdc-acm.c
View File

@ -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 */

2
drivers/usb/class/cdc-wdm.c
View File

@ -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);

5
drivers/usb/class/usbtmc.c
View File

@ -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) {

111
drivers/usb/core/config.c
View File

@ -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;
}

4
drivers/usb/core/devices.c
View File

@ -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;

57
drivers/usb/core/devio.c
View File

@ -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);
}
}
}

16
drivers/usb/core/driver.c
View File

@ -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 = {

2
drivers/usb/core/endpoint.c
View File

@ -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);

2
drivers/usb/core/hcd-pci.c
View File

@ -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);

27
drivers/usb/core/hcd.c
View File

@ -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:

307
drivers/usb/core/hub.c
View File

@ -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;
/*
* 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;
/* bomb out completely if the connection bounced */
if ((portchange & USB_PORT_STAT_C_CONNECTION))
return -ENOTCONN;
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;
/* 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;
/* 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;
}
@ -2151,47 +2230,13 @@ 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);
done:
if (!warm)
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);
return ret;
}
/* Check if a port is power on */
static int port_is_power_on(struct usb_hub *hub, unsigned portstatus)
{
@ -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)

2
drivers/usb/core/message.c
View File

@ -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;

24
drivers/usb/core/quirks.c
View File

@ -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 },

59
drivers/usb/core/sysfs.c
View File

@ -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);
}

2
drivers/usb/core/urb.c
View File

@ -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",

1
drivers/usb/core/usb.c
View File

@ -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);

7
drivers/usb/core/usb.h
View File

@ -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;

25
drivers/usb/dwc3/Kconfig Normal file
View File

@ -0,0 +1,25 @@
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

36
drivers/usb/dwc3/Makefile Normal file
View File

@ -0,0 +1,36 @@
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

484
drivers/usb/dwc3/core.c Normal file
View File

@ -0,0 +1,484 @@
/**
* 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);

768
drivers/usb/dwc3/core.h Normal file
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/**
* core.h - DesignWare USB3 DRD Core 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_CORE_H
#define __DRIVERS_USB_DWC3_CORE_H
#include <linux/device.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/dma-mapping.h>
#include <linux/mm.h>
#include <linux/debugfs.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
/* Global constants */
#define DWC3_ENDPOINTS_NUM 32
#define DWC3_EVENT_BUFFERS_NUM 2
#define DWC3_EVENT_BUFFERS_SIZE PAGE_SIZE
#define DWC3_EVENT_TYPE_MASK 0xfe
#define DWC3_EVENT_TYPE_DEV 0
#define DWC3_EVENT_TYPE_CARKIT 3
#define DWC3_EVENT_TYPE_I2C 4
#define DWC3_DEVICE_EVENT_DISCONNECT 0
#define DWC3_DEVICE_EVENT_RESET 1
#define DWC3_DEVICE_EVENT_CONNECT_DONE 2
#define DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE 3
#define DWC3_DEVICE_EVENT_WAKEUP 4
#define DWC3_DEVICE_EVENT_EOPF 6
#define DWC3_DEVICE_EVENT_SOF 7
#define DWC3_DEVICE_EVENT_ERRATIC_ERROR 9
#define DWC3_DEVICE_EVENT_CMD_CMPL 10
#define DWC3_DEVICE_EVENT_OVERFLOW 11
#define DWC3_GEVNTCOUNT_MASK 0xfffc
#define DWC3_GSNPSID_MASK 0xffff0000
#define DWC3_GSNPSREV_MASK 0xffff
/* Global Registers */
#define DWC3_GSBUSCFG0 0xc100
#define DWC3_GSBUSCFG1 0xc104
#define DWC3_GTXTHRCFG 0xc108
#define DWC3_GRXTHRCFG 0xc10c
#define DWC3_GCTL 0xc110
#define DWC3_GEVTEN 0xc114
#define DWC3_GSTS 0xc118
#define DWC3_GSNPSID 0xc120
#define DWC3_GGPIO 0xc124
#define DWC3_GUID 0xc128
#define DWC3_GUCTL 0xc12c
#define DWC3_GBUSERRADDR0 0xc130
#define DWC3_GBUSERRADDR1 0xc134
#define DWC3_GPRTBIMAP0 0xc138
#define DWC3_GPRTBIMAP1 0xc13c
#define DWC3_GHWPARAMS0 0xc140
#define DWC3_GHWPARAMS1 0xc144
#define DWC3_GHWPARAMS2 0xc148
#define DWC3_GHWPARAMS3 0xc14c
#define DWC3_GHWPARAMS4 0xc150
#define DWC3_GHWPARAMS5 0xc154
#define DWC3_GHWPARAMS6 0xc158
#define DWC3_GHWPARAMS7 0xc15c
#define DWC3_GDBGFIFOSPACE 0xc160
#define DWC3_GDBGLTSSM 0xc164
#define DWC3_GPRTBIMAP_HS0 0xc180
#define DWC3_GPRTBIMAP_HS1 0xc184
#define DWC3_GPRTBIMAP_FS0 0xc188
#define DWC3_GPRTBIMAP_FS1 0xc18c
#define DWC3_GUSB2PHYCFG(n) (0xc200 + (n * 0x04))
#define DWC3_GUSB2I2CCTL(n) (0xc240 + (n * 0x04))
#define DWC3_GUSB2PHYACC(n) (0xc280 + (n * 0x04))
#define DWC3_GUSB3PIPECTL(n) (0xc2c0 + (n * 0x04))
#define DWC3_GTXFIFOSIZ(n) (0xc300 + (n * 0x04))
#define DWC3_GRXFIFOSIZ(n) (0xc380 + (n * 0x04))
#define DWC3_GEVNTADRLO(n) (0xc400 + (n * 0x10))
#define DWC3_GEVNTADRHI(n) (0xc404 + (n * 0x10))
#define DWC3_GEVNTSIZ(n) (0xc408 + (n * 0x10))
#define DWC3_GEVNTCOUNT(n) (0xc40c + (n * 0x10))
#define DWC3_GHWPARAMS8 0xc600
/* Device Registers */
#define DWC3_DCFG 0xc700
#define DWC3_DCTL 0xc704
#define DWC3_DEVTEN 0xc708
#define DWC3_DSTS 0xc70c
#define DWC3_DGCMDPAR 0xc710
#define DWC3_DGCMD 0xc714
#define DWC3_DALEPENA 0xc720
#define DWC3_DEPCMDPAR2(n) (0xc800 + (n * 0x10))
#define DWC3_DEPCMDPAR1(n) (0xc804 + (n * 0x10))
#define DWC3_DEPCMDPAR0(n) (0xc808 + (n * 0x10))
#define DWC3_DEPCMD(n) (0xc80c + (n * 0x10))
/* OTG Registers */
#define DWC3_OCFG 0xcc00
#define DWC3_OCTL 0xcc04
#define DWC3_OEVTEN 0xcc08
#define DWC3_OSTS 0xcc0C
/* Bit fields */
/* Global Configuration Register */
#define DWC3_GCTL_PWRDNSCALE(n) (n << 19)
#define DWC3_GCTL_U2RSTECN (1 << 16)
#define DWC3_GCTL_RAMCLKSEL(x) ((x & DWC3_GCTL_CLK_MASK) << 6)
#define DWC3_GCTL_CLK_BUS (0)
#define DWC3_GCTL_CLK_PIPE (1)
#define DWC3_GCTL_CLK_PIPEHALF (2)
#define DWC3_GCTL_CLK_MASK (3)
#define DWC3_GCTL_PRTCAPDIR(n) (n << 12)
#define DWC3_GCTL_PRTCAP_HOST 1
#define DWC3_GCTL_PRTCAP_DEVICE 2
#define DWC3_GCTL_PRTCAP_OTG 3
#define DWC3_GCTL_CORESOFTRESET (1 << 11)
#define DWC3_GCTL_SCALEDOWN(n) (n << 4)
#define DWC3_GCTL_DISSCRAMBLE (1 << 3)
#define DWC3_GCTL_DSBLCLKGTNG (1 << 0)
/* Global USB2 PHY Configuration Register */
#define DWC3_GUSB2PHYCFG_PHYSOFTRST (1 << 31)
#define DWC3_GUSB2PHYCFG_SUSPHY (1 << 6)
/* Global USB3 PIPE Control Register */
#define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31)
#define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17)
/* Global HWPARAMS1 Register */
#define DWC3_GHWPARAMS1_EN_PWROPT(n) ((n & (3 << 24)) >> 24)
#define DWC3_GHWPARAMS1_EN_PWROPT_NO 0
#define DWC3_GHWPARAMS1_EN_PWROPT_CLK 1
/* Device Configuration Register */
#define DWC3_DCFG_DEVADDR(addr) ((addr) << 3)
#define DWC3_DCFG_DEVADDR_MASK DWC3_DCFG_DEVADDR(0x7f)
#define DWC3_DCFG_SPEED_MASK (7 << 0)
#define DWC3_DCFG_SUPERSPEED (4 << 0)
#define DWC3_DCFG_HIGHSPEED (0 << 0)
#define DWC3_DCFG_FULLSPEED2 (1 << 0)
#define DWC3_DCFG_LOWSPEED (2 << 0)
#define DWC3_DCFG_FULLSPEED1 (3 << 0)
/* Device Control Register */
#define DWC3_DCTL_RUN_STOP (1 << 31)
#define DWC3_DCTL_CSFTRST (1 << 30)
#define DWC3_DCTL_LSFTRST (1 << 29)
#define DWC3_DCTL_HIRD_THRES_MASK (0x1f << 24)
#define DWC3_DCTL_HIRD_THRES(n) (((n) & DWC3_DCTL_HIRD_THRES_MASK) >> 24)
#define DWC3_DCTL_APPL1RES (1 << 23)
#define DWC3_DCTL_INITU2ENA (1 << 12)
#define DWC3_DCTL_ACCEPTU2ENA (1 << 11)
#define DWC3_DCTL_INITU1ENA (1 << 10)
#define DWC3_DCTL_ACCEPTU1ENA (1 << 9)
#define DWC3_DCTL_TSTCTRL_MASK (0xf << 1)
#define DWC3_DCTL_ULSTCHNGREQ_MASK (0x0f << 5)
#define DWC3_DCTL_ULSTCHNGREQ(n) (((n) << 5) & DWC3_DCTL_ULSTCHNGREQ_MASK)
#define DWC3_DCTL_ULSTCHNG_NO_ACTION (DWC3_DCTL_ULSTCHNGREQ(0))
#define DWC3_DCTL_ULSTCHNG_SS_DISABLED (DWC3_DCTL_ULSTCHNGREQ(4))
#define DWC3_DCTL_ULSTCHNG_RX_DETECT (DWC3_DCTL_ULSTCHNGREQ(5))
#define DWC3_DCTL_ULSTCHNG_SS_INACTIVE (DWC3_DCTL_ULSTCHNGREQ(6))
#define DWC3_DCTL_ULSTCHNG_RECOVERY (DWC3_DCTL_ULSTCHNGREQ(8))
#define DWC3_DCTL_ULSTCHNG_COMPLIANCE (DWC3_DCTL_ULSTCHNGREQ(10))
#define DWC3_DCTL_ULSTCHNG_LOOPBACK (DWC3_DCTL_ULSTCHNGREQ(11))
/* Device Event Enable Register */
#define DWC3_DEVTEN_VNDRDEVTSTRCVEDEN (1 << 12)
#define DWC3_DEVTEN_EVNTOVERFLOWEN (1 << 11)
#define DWC3_DEVTEN_CMDCMPLTEN (1 << 10)
#define DWC3_DEVTEN_ERRTICERREN (1 << 9)
#define DWC3_DEVTEN_SOFEN (1 << 7)
#define DWC3_DEVTEN_EOPFEN (1 << 6)
#define DWC3_DEVTEN_WKUPEVTEN (1 << 4)
#define DWC3_DEVTEN_ULSTCNGEN (1 << 3)
#define DWC3_DEVTEN_CONNECTDONEEN (1 << 2)
#define DWC3_DEVTEN_USBRSTEN (1 << 1)
#define DWC3_DEVTEN_DISCONNEVTEN (1 << 0)
/* Device Status Register */
#define DWC3_DSTS_PWRUPREQ (1 << 24)
#define DWC3_DSTS_COREIDLE (1 << 23)
#define DWC3_DSTS_DEVCTRLHLT (1 << 22)
#define DWC3_DSTS_USBLNKST_MASK (0x0f << 18)
#define DWC3_DSTS_USBLNKST(n) (((n) & DWC3_DSTS_USBLNKST_MASK) >> 18)
#define DWC3_DSTS_RXFIFOEMPTY (1 << 17)
#define DWC3_DSTS_SOFFN_MASK (0x3ff << 3)
#define DWC3_DSTS_SOFFN(n) (((n) & DWC3_DSTS_SOFFN_MASK) >> 3)
#define DWC3_DSTS_CONNECTSPD (7 << 0)
#define DWC3_DSTS_SUPERSPEED (4 << 0)
#define DWC3_DSTS_HIGHSPEED (0 << 0)
#define DWC3_DSTS_FULLSPEED2 (1 << 0)
#define DWC3_DSTS_LOWSPEED (2 << 0)
#define DWC3_DSTS_FULLSPEED1 (3 << 0)
/* Device Generic Command Register */
#define DWC3_DGCMD_SET_LMP 0x01
#define DWC3_DGCMD_SET_PERIODIC_PAR 0x02
#define DWC3_DGCMD_XMIT_FUNCTION 0x03
#define DWC3_DGCMD_SELECTED_FIFO_FLUSH 0x09
#define DWC3_DGCMD_ALL_FIFO_FLUSH 0x0a
#define DWC3_DGCMD_SET_ENDPOINT_NRDY 0x0c
#define DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK 0x10
/* Device Endpoint Command Register */
#define DWC3_DEPCMD_PARAM_SHIFT 16
#define DWC3_DEPCMD_PARAM(x) (x << DWC3_DEPCMD_PARAM_SHIFT)
#define DWC3_DEPCMD_GET_RSC_IDX(x) ((x >> DWC3_DEPCMD_PARAM_SHIFT) & 0x7f)
#define DWC3_DEPCMD_STATUS_MASK (0x0f << 12)
#define DWC3_DEPCMD_STATUS(x) ((x & DWC3_DEPCMD_STATUS_MASK) >> 12)
#define DWC3_DEPCMD_HIPRI_FORCERM (1 << 11)
#define DWC3_DEPCMD_CMDACT (1 << 10)
#define DWC3_DEPCMD_CMDIOC (1 << 8)
#define DWC3_DEPCMD_DEPSTARTCFG (0x09 << 0)
#define DWC3_DEPCMD_ENDTRANSFER (0x08 << 0)
#define DWC3_DEPCMD_UPDATETRANSFER (0x07 << 0)
#define DWC3_DEPCMD_STARTTRANSFER (0x06 << 0)
#define DWC3_DEPCMD_CLEARSTALL (0x05 << 0)
#define DWC3_DEPCMD_SETSTALL (0x04 << 0)
#define DWC3_DEPCMD_GETSEQNUMBER (0x03 << 0)
#define DWC3_DEPCMD_SETTRANSFRESOURCE (0x02 << 0)
#define DWC3_DEPCMD_SETEPCONFIG (0x01 << 0)
/* The EP number goes 0..31 so ep0 is always out and ep1 is always in */
#define DWC3_DALEPENA_EP(n) (1 << n)
#define DWC3_DEPCMD_TYPE_CONTROL 0
#define DWC3_DEPCMD_TYPE_ISOC 1
#define DWC3_DEPCMD_TYPE_BULK 2
#define DWC3_DEPCMD_TYPE_INTR 3
/* Structures */
struct dwc3_trb_hw;
/**
* struct dwc3_event_buffer - Software event buffer representation
* @list: a list of event buffers
* @buf: _THE_ buffer
* @length: size of this buffer
* @dma: dma_addr_t
* @dwc: pointer to DWC controller
*/
struct dwc3_event_buffer {
void *buf;
unsigned length;
unsigned int lpos;
dma_addr_t dma;
struct dwc3 *dwc;
};
#define DWC3_EP_FLAG_STALLED (1 << 0)
#define DWC3_EP_FLAG_WEDGED (1 << 1)
#define DWC3_EP_DIRECTION_TX true
#define DWC3_EP_DIRECTION_RX false
#define DWC3_TRB_NUM 32
#define DWC3_TRB_MASK (DWC3_TRB_NUM - 1)
/**
* struct dwc3_ep - device side endpoint representation
* @endpoint: usb endpoint
* @request_list: list of requests for this endpoint
* @req_queued: list of requests on this ep which have TRBs setup
* @trb_pool: array of transaction buffers
* @trb_pool_dma: dma address of @trb_pool
* @free_slot: next slot which is going to be used
* @busy_slot: first slot which is owned by HW
* @desc: usb_endpoint_descriptor pointer
* @dwc: pointer to DWC controller
* @flags: endpoint flags (wedged, stalled, ...)
* @current_trb: index of current used trb
* @number: endpoint number (1 - 15)
* @type: set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK
* @res_trans_idx: Resource transfer index
* @interval: the intervall on which the ISOC transfer is started
* @name: a human readable name e.g. ep1out-bulk
* @direction: true for TX, false for RX
* @stream_capable: true when streams are enabled
*/
struct dwc3_ep {
struct usb_ep endpoint;
struct list_head request_list;
struct list_head req_queued;
struct dwc3_trb_hw *trb_pool;
dma_addr_t trb_pool_dma;
u32 free_slot;
u32 busy_slot;
const struct usb_endpoint_descriptor *desc;
struct dwc3 *dwc;
unsigned flags;
#define DWC3_EP_ENABLED (1 << 0)
#define DWC3_EP_STALL (1 << 1)
#define DWC3_EP_WEDGE (1 << 2)
#define DWC3_EP_BUSY (1 << 4)
#define DWC3_EP_PENDING_REQUEST (1 << 5)
/* This last one is specific to EP0 */
#define DWC3_EP0_DIR_IN (1 << 31)
unsigned current_trb;
u8 number;
u8 type;
u8 res_trans_idx;
u32 interval;
char name[20];
unsigned direction:1;
unsigned stream_capable:1;
};
enum dwc3_phy {
DWC3_PHY_UNKNOWN = 0,
DWC3_PHY_USB3,
DWC3_PHY_USB2,
};
enum dwc3_ep0_next {
DWC3_EP0_UNKNOWN = 0,
DWC3_EP0_COMPLETE,
DWC3_EP0_NRDY_SETUP,
DWC3_EP0_NRDY_DATA,
DWC3_EP0_NRDY_STATUS,
};
enum dwc3_ep0_state {
EP0_UNCONNECTED = 0,
EP0_SETUP_PHASE,
EP0_DATA_PHASE,
EP0_STATUS_PHASE,
};
enum dwc3_link_state {
/* In SuperSpeed */
DWC3_LINK_STATE_U0 = 0x00, /* in HS, means ON */
DWC3_LINK_STATE_U1 = 0x01,
DWC3_LINK_STATE_U2 = 0x02, /* in HS, means SLEEP */
DWC3_LINK_STATE_U3 = 0x03, /* in HS, means SUSPEND */
DWC3_LINK_STATE_SS_DIS = 0x04,
DWC3_LINK_STATE_RX_DET = 0x05, /* in HS, means Early Suspend */
DWC3_LINK_STATE_SS_INACT = 0x06,
DWC3_LINK_STATE_POLL = 0x07,
DWC3_LINK_STATE_RECOV = 0x08,
DWC3_LINK_STATE_HRESET = 0x09,
DWC3_LINK_STATE_CMPLY = 0x0a,
DWC3_LINK_STATE_LPBK = 0x0b,
DWC3_LINK_STATE_MASK = 0x0f,
};
enum dwc3_device_state {
DWC3_DEFAULT_STATE,
DWC3_ADDRESS_STATE,
DWC3_CONFIGURED_STATE,
};
/**
* struct dwc3_trb - transfer request block
* @bpl: lower 32bit of the buffer
* @bph: higher 32bit of the buffer
* @length: buffer size (up to 16mb - 1)
* @pcm1: packet count m1
* @trbsts: trb status
* 0 = ok
* 1 = missed isoc
* 2 = setup pending
* @hwo: hardware owner of descriptor
* @lst: last trb
* @chn: chain buffers
* @csp: continue on short packets (only supported on isoc eps)
* @trbctl: trb control
* 1 = normal
* 2 = control-setup
* 3 = control-status-2
* 4 = control-status-3
* 5 = control-data (first trb of data stage)
* 6 = isochronous-first (first trb of service interval)
* 7 = isochronous
* 8 = link trb
* others = reserved
* @isp_imi: interrupt on short packet / interrupt on missed isoc
* @ioc: interrupt on complete
* @sid_sofn: Stream ID / SOF Number
*/
struct dwc3_trb {
u64 bplh;
union {
struct {
u32 length:24;
u32 pcm1:2;
u32 reserved27_26:2;
u32 trbsts:4;
#define DWC3_TRB_STS_OKAY 0
#define DWC3_TRB_STS_MISSED_ISOC 1
#define DWC3_TRB_STS_SETUP_PENDING 2
};
u32 len_pcm;
};
union {
struct {
u32 hwo:1;
u32 lst:1;
u32 chn:1;
u32 csp:1;
u32 trbctl:6;
u32 isp_imi:1;
u32 ioc:1;
u32 reserved13_12:2;
u32 sid_sofn:16;
u32 reserved31_30:2;
};
u32 control;
};
} __packed;
/**
* struct dwc3_trb_hw - transfer request block (hw format)
* @bpl: DW0-3
* @bph: DW4-7
* @size: DW8-B
* @trl: DWC-F
*/
struct dwc3_trb_hw {
__le32 bpl;
__le32 bph;
__le32 size;
__le32 ctrl;
} __packed;
static inline void dwc3_trb_to_hw(struct dwc3_trb *nat, struct dwc3_trb_hw *hw)
{
hw->bpl = cpu_to_le32(lower_32_bits(nat->bplh));
hw->bph = cpu_to_le32(upper_32_bits(nat->bplh));
hw->size = cpu_to_le32p(&nat->len_pcm);
/* HWO is written last */
hw->ctrl = cpu_to_le32p(&nat->control);
}
static inline void dwc3_trb_to_nat(struct dwc3_trb_hw *hw, struct dwc3_trb *nat)
{
u64 bplh;
bplh = le32_to_cpup(&hw->bpl);
bplh |= (u64) le32_to_cpup(&hw->bph) << 32;
nat->bplh = bplh;
nat->len_pcm = le32_to_cpup(&hw->size);
nat->control = le32_to_cpup(&hw->ctrl);
}
/**
* dwc3_hwparams - copy of HWPARAMS registers
* @hwparams0 - GHWPARAMS0
* @hwparams1 - GHWPARAMS1
* @hwparams2 - GHWPARAMS2
* @hwparams3 - GHWPARAMS3
* @hwparams4 - GHWPARAMS4
* @hwparams5 - GHWPARAMS5
* @hwparams6 - GHWPARAMS6
* @hwparams7 - GHWPARAMS7
* @hwparams8 - GHWPARAMS8
*/
struct dwc3_hwparams {
u32 hwparams0;
u32 hwparams1;
u32 hwparams2;
u32 hwparams3;
u32 hwparams4;
u32 hwparams5;
u32 hwparams6;
u32 hwparams7;
u32 hwparams8;
};
/**
* struct dwc3 - representation of our controller
* @ctrl_req: usb control request which is used for ep0
* @ep0_trb: trb which is used for the ctrl_req
* @ep0_bounce: bounce buffer for ep0
* @setup_buf: used while precessing STD USB requests
* @ctrl_req_addr: dma address of ctrl_req
* @ep0_trb: dma address of ep0_trb
* @ep0_usb_req: dummy req used while handling STD USB requests
* @setup_buf_addr: dma address of setup_buf
* @ep0_bounce_addr: dma address of ep0_bounce
* @lock: for synchronizing
* @dev: pointer to our struct device
* @event_buffer_list: a list of event buffers
* @gadget: device side representation of the peripheral controller
* @gadget_driver: pointer to the gadget driver
* @regs: base address for our registers
* @regs_size: address space size
* @irq: IRQ number
* @revision: revision register contents
* @is_selfpowered: true when we are selfpowered
* @three_stage_setup: set if we perform a three phase setup
* @ep0_status_pending: ep0 status response without a req is pending
* @ep0_bounced: true when we used bounce buffer
* @ep0_expect_in: true when we expect a DATA IN transfer
* @start_config_issued: true when StartConfig command has been issued
* @ep0_next_event: hold the next expected event
* @ep0state: state of endpoint zero
* @link_state: link state
* @speed: device speed (super, high, full, low)
* @mem: points to start of memory which is used for this struct.
* @hwparams: copy of hwparams registers
* @root: debugfs root folder pointer
*/
struct dwc3 {
struct usb_ctrlrequest *ctrl_req;
struct dwc3_trb_hw *ep0_trb;
void *ep0_bounce;
u8 *setup_buf;
dma_addr_t ctrl_req_addr;
dma_addr_t ep0_trb_addr;
dma_addr_t setup_buf_addr;
dma_addr_t ep0_bounce_addr;
struct usb_request ep0_usb_req;
/* device lock */
spinlock_t lock;
struct device *dev;
struct dwc3_event_buffer *ev_buffs[DWC3_EVENT_BUFFERS_NUM];
struct dwc3_ep *eps[DWC3_ENDPOINTS_NUM];
struct usb_gadget gadget;
struct usb_gadget_driver *gadget_driver;
void __iomem *regs;
size_t regs_size;
int irq;
u32 revision;
#define DWC3_REVISION_173A 0x5533173a
#define DWC3_REVISION_175A 0x5533175a
#define DWC3_REVISION_180A 0x5533180a
#define DWC3_REVISION_183A 0x5533183a
#define DWC3_REVISION_185A 0x5533185a
#define DWC3_REVISION_188A 0x5533188a
#define DWC3_REVISION_190A 0x5533190a
unsigned is_selfpowered:1;
unsigned three_stage_setup:1;
unsigned ep0_status_pending:1;
unsigned ep0_bounced:1;
unsigned ep0_expect_in:1;
unsigned start_config_issued:1;
enum dwc3_ep0_next ep0_next_event;
enum dwc3_ep0_state ep0state;
enum dwc3_link_state link_state;
enum dwc3_device_state dev_state;
u8 speed;
void *mem;
struct dwc3_hwparams hwparams;
struct dentry *root;
};
/* -------------------------------------------------------------------------- */
#define DWC3_TRBSTS_OK 0
#define DWC3_TRBSTS_MISSED_ISOC 1
#define DWC3_TRBSTS_SETUP_PENDING 2
#define DWC3_TRBCTL_NORMAL 1
#define DWC3_TRBCTL_CONTROL_SETUP 2
#define DWC3_TRBCTL_CONTROL_STATUS2 3
#define DWC3_TRBCTL_CONTROL_STATUS3 4
#define DWC3_TRBCTL_CONTROL_DATA 5
#define DWC3_TRBCTL_ISOCHRONOUS_FIRST 6
#define DWC3_TRBCTL_ISOCHRONOUS 7
#define DWC3_TRBCTL_LINK_TRB 8
/* -------------------------------------------------------------------------- */
struct dwc3_event_type {
u32 is_devspec:1;
u32 type:6;
u32 reserved8_31:25;
} __packed;
#define DWC3_DEPEVT_XFERCOMPLETE 0x01
#define DWC3_DEPEVT_XFERINPROGRESS 0x02
#define DWC3_DEPEVT_XFERNOTREADY 0x03
#define DWC3_DEPEVT_RXTXFIFOEVT 0x04
#define DWC3_DEPEVT_STREAMEVT 0x06
#define DWC3_DEPEVT_EPCMDCMPLT 0x07
/**
* struct dwc3_event_depvt - Device Endpoint Events
* @one_bit: indicates this is an endpoint event (not used)
* @endpoint_number: number of the endpoint
* @endpoint_event: The event we have:
* 0x00 - Reserved
* 0x01 - XferComplete
* 0x02 - XferInProgress
* 0x03 - XferNotReady
* 0x04 - RxTxFifoEvt (IN->Underrun, OUT->Overrun)
* 0x05 - Reserved
* 0x06 - StreamEvt
* 0x07 - EPCmdCmplt
* @reserved11_10: Reserved, don't use.
* @status: Indicates the status of the event. Refer to databook for
* more information.
* @parameters: Parameters of the current event. Refer to databook for
* more information.
*/
struct dwc3_event_depevt {
u32 one_bit:1;
u32 endpoint_number:5;
u32 endpoint_event:4;
u32 reserved11_10:2;
u32 status:4;
#define DEPEVT_STATUS_BUSERR (1 << 0)
#define DEPEVT_STATUS_SHORT (1 << 1)
#define DEPEVT_STATUS_IOC (1 << 2)
#define DEPEVT_STATUS_LST (1 << 3)
/* Stream event only */
#define DEPEVT_STREAMEVT_FOUND 1
#define DEPEVT_STREAMEVT_NOTFOUND 2
/* Control-only Status */
#define DEPEVT_STATUS_CONTROL_SETUP 0
#define DEPEVT_STATUS_CONTROL_DATA 1
#define DEPEVT_STATUS_CONTROL_STATUS 2
u32 parameters:16;
} __packed;
/**
* struct dwc3_event_devt - Device Events
* @one_bit: indicates this is a non-endpoint event (not used)
* @device_event: indicates it's a device event. Should read as 0x00
* @type: indicates the type of device event.
* 0 - DisconnEvt
* 1 - USBRst
* 2 - ConnectDone
* 3 - ULStChng
* 4 - WkUpEvt
* 5 - Reserved
* 6 - EOPF
* 7 - SOF
* 8 - Reserved
* 9 - ErrticErr
* 10 - CmdCmplt
* 11 - EvntOverflow
* 12 - VndrDevTstRcved
* @reserved15_12: Reserved, not used
* @event_info: Information about this event
* @reserved31_24: Reserved, not used
*/
struct dwc3_event_devt {
u32 one_bit:1;
u32 device_event:7;
u32 type:4;
u32 reserved15_12:4;
u32 event_info:8;
u32 reserved31_24:8;
} __packed;
/**
* struct dwc3_event_gevt - Other Core Events
* @one_bit: indicates this is a non-endpoint event (not used)
* @device_event: indicates it's (0x03) Carkit or (0x04) I2C event.
* @phy_port_number: self-explanatory
* @reserved31_12: Reserved, not used.
*/
struct dwc3_event_gevt {
u32 one_bit:1;
u32 device_event:7;
u32 phy_port_number:4;
u32 reserved31_12:20;
} __packed;
/**
* union dwc3_event - representation of Event Buffer contents
* @raw: raw 32-bit event
* @type: the type of the event
* @depevt: Device Endpoint Event
* @devt: Device Event
* @gevt: Global Event
*/
union dwc3_event {
u32 raw;
struct dwc3_event_type type;
struct dwc3_event_depevt depevt;
struct dwc3_event_devt devt;
struct dwc3_event_gevt gevt;
};
/*
* DWC3 Features to be used as Driver Data
*/
#define DWC3_HAS_PERIPHERAL BIT(0)
#define DWC3_HAS_XHCI BIT(1)
#define DWC3_HAS_OTG BIT(3)
#endif /* __DRIVERS_USB_DWC3_CORE_H */

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/**
* 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

441
drivers/usb/dwc3/debugfs.c Normal file
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/**
* 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;
}

401
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/**
* 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);

219
drivers/usb/dwc3/dwc3-pci.c Normal file
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@ -0,0 +1,219 @@
/**
* 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);

804
drivers/usb/dwc3/ep0.c Normal file
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@ -0,0 +1,804 @@
/**
* 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;
}
}

2104
drivers/usb/dwc3/gadget.c Normal file
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211
drivers/usb/dwc3/gadget.h Normal file
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@ -0,0 +1,211 @@
/**
* 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 */

54
drivers/usb/dwc3/io.h Normal file
View File

@ -0,0 +1,54 @@
/**
* 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 */

47
drivers/usb/gadget/Kconfig
View File

@ -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

4
drivers/usb/gadget/Makefile
View File

@ -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

256
drivers/usb/gadget/acm_ms.c Normal file
View File

@ -0,0 +1,256 @@
/*
* acm_ms.c -- Composite driver, with ACM and mass storage support
*
* Copyright (C) 2008 David Brownell
* Copyright (C) 2008 Nokia Corporation
* Author: David Brownell
* Modified: Klaus Schwarzkopf <schwarzkopf@sensortherm.de>
*
* Heavily based on multi.c and cdc2.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/utsname.h>
#include "u_serial.h"
#define DRIVER_DESC "Composite Gadget (ACM + MS)"
#define DRIVER_VERSION "2011/10/10"
/*-------------------------------------------------------------------------*/
/*
* DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!!
* Instead: allocate your own, using normal USB-IF procedures.
*/
#define ACM_MS_VENDOR_NUM 0x1d6b /* Linux Foundation */
#define ACM_MS_PRODUCT_NUM 0x0106 /* Composite Gadget: ACM + MS*/
/*-------------------------------------------------------------------------*/
/*
* Kbuild is not very cooperative with respect to linking separately
* compiled library objects into one module. So for now we won't use
* separate compilation ... ensuring init/exit sections work to shrink
* the runtime footprint, and giving us at least some parts of what
* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
*/
#include "composite.c"
#include "usbstring.c"
#include "config.c"
#include "epautoconf.c"
#include "u_serial.c"
#include "f_acm.c"
#include "f_mass_storage.c"
/*-------------------------------------------------------------------------*/
static struct usb_device_descriptor device_desc = {
.bLength = sizeof device_desc,
.bDescriptorType = USB_DT_DEVICE,
.bcdUSB = cpu_to_le16(0x0200),
.bDeviceClass = USB_CLASS_MISC /* 0xEF */,
.bDeviceSubClass = 2,
.bDeviceProtocol = 1,
/* .bMaxPacketSize0 = f(hardware) */
/* Vendor and product id can be overridden by module parameters. */
.idVendor = cpu_to_le16(ACM_MS_VENDOR_NUM),
.idProduct = cpu_to_le16(ACM_MS_PRODUCT_NUM),
/* .bcdDevice = f(hardware) */
/* .iManufacturer = DYNAMIC */
/* .iProduct = DYNAMIC */
/* NO SERIAL NUMBER */
/*.bNumConfigurations = DYNAMIC*/
};
static struct usb_otg_descriptor otg_descriptor = {
.bLength = sizeof otg_descriptor,
.bDescriptorType = USB_DT_OTG,
/*
* REVISIT SRP-only hardware is possible, although
* it would not be called "OTG" ...
*/
.bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
};
static const struct usb_descriptor_header *otg_desc[] = {
(struct usb_descriptor_header *) &otg_descriptor,
NULL,
};
/* string IDs are assigned dynamically */
#define STRING_MANUFACTURER_IDX 0
#define STRING_PRODUCT_IDX 1
static char manufacturer[50];
static struct usb_string strings_dev[] = {
[STRING_MANUFACTURER_IDX].s = manufacturer,
[STRING_PRODUCT_IDX].s = DRIVER_DESC,
{ } /* end of list */
};
static struct usb_gadget_strings stringtab_dev = {
.language = 0x0409, /* en-us */
.strings = strings_dev,
};
static struct usb_gadget_strings *dev_strings[] = {
&stringtab_dev,
NULL,
};
/****************************** Configurations ******************************/
static struct fsg_module_parameters fsg_mod_data = { .stall = 1 };
FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
static struct fsg_common fsg_common;
/*-------------------------------------------------------------------------*/
/*
* We _always_ have both ACM and mass storage functions.
*/
static int __init acm_ms_do_config(struct usb_configuration *c)
{
int status;
if (gadget_is_otg(c->cdev->gadget)) {
c->descriptors = otg_desc;
c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
status = acm_bind_config(c, 0);
if (status < 0)
return status;
status = fsg_bind_config(c->cdev, c, &fsg_common);
if (status < 0)
return status;
return 0;
}
static struct usb_configuration acm_ms_config_driver = {
.label = DRIVER_DESC,
.bConfigurationValue = 1,
/* .iConfiguration = DYNAMIC */
.bmAttributes = USB_CONFIG_ATT_SELFPOWER,
};
/*-------------------------------------------------------------------------*/
static int __init acm_ms_bind(struct usb_composite_dev *cdev)
{
int gcnum;
struct usb_gadget *gadget = cdev->gadget;
int status;
void *retp;
/* set up serial link layer */
status = gserial_setup(cdev->gadget, 1);
if (status < 0)
return status;
/* set up mass storage function */
retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data);
if (IS_ERR(retp)) {
status = PTR_ERR(retp);
goto fail0;
}
/* set bcdDevice */
gcnum = usb_gadget_controller_number(gadget);
if (gcnum >= 0) {
device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
} else {
WARNING(cdev, "controller '%s' not recognized; trying %s\n",
gadget->name,
acm_ms_config_driver.label);
device_desc.bcdDevice =
cpu_to_le16(0x0300 | 0x0099);
}
/*
* Allocate string descriptor numbers ... note that string
* contents can be overridden by the composite_dev glue.
*/
/* device descriptor strings: manufacturer, product */
snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
init_utsname()->sysname, init_utsname()->release,
gadget->name);
status = usb_string_id(cdev);
if (status < 0)
goto fail1;
strings_dev[STRING_MANUFACTURER_IDX].id = status;
device_desc.iManufacturer = status;
status = usb_string_id(cdev);
if (status < 0)
goto fail1;
strings_dev[STRING_PRODUCT_IDX].id = status;
device_desc.iProduct = status;
/* register our configuration */
status = usb_add_config(cdev, &acm_ms_config_driver, acm_ms_do_config);
if (status < 0)
goto fail1;
dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
DRIVER_DESC);
fsg_common_put(&fsg_common);
return 0;
/* error recovery */
fail1:
fsg_common_put(&fsg_common);
fail0:
gserial_cleanup();
return status;
}
static int __exit acm_ms_unbind(struct usb_composite_dev *cdev)
{
gserial_cleanup();
return 0;
}
static struct usb_composite_driver acm_ms_driver = {
.name = "g_acm_ms",
.dev = &device_desc,
.strings = dev_strings,
.unbind = __exit_p(acm_ms_unbind),
};
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR("Klaus Schwarzkopf <schwarzkopf@sensortherm.de>");
MODULE_LICENSE("GPL v2");
static int __init init(void)
{
return usb_composite_probe(&acm_ms_driver, acm_ms_bind);
}
module_init(init);
static void __exit cleanup(void)
{
usb_composite_unregister(&acm_ms_driver);
}
module_exit(cleanup);

20
drivers/usb/gadget/amd5536udc.c
View File

@ -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
*/
/*
@ -354,7 +345,7 @@ udc_ep_enable(struct usb_ep *usbep, const struct usb_endpoint_descriptor *desc)
writel(tmp, &dev->ep[ep->num].regs->ctl);
/* set max packet size */
maxpacket = le16_to_cpu(desc->wMaxPacketSize);
maxpacket = usb_endpoint_maxp(desc);
tmp = readl(&dev->ep[ep->num].regs->bufout_maxpkt);
tmp = AMD_ADDBITS(tmp, maxpacket, UDC_EP_MAX_PKT_SIZE);
ep->ep.maxpacket = maxpacket;
@ -3014,13 +3005,8 @@ __acquires(dev->lock)
/* link up all endpoints */
udc_setup_endpoints(dev);
if (dev->gadget.speed == USB_SPEED_HIGH) {
dev_info(&dev->pdev->dev, "Connect: speed = %s\n",
"high");
} else if (dev->gadget.speed == USB_SPEED_FULL) {
dev_info(&dev->pdev->dev, "Connect: speed = %s\n",
"full");
}
dev_info(&dev->pdev->dev, "Connect: %s\n",
usb_speed_string(dev->gadget.speed));
/* init ep 0 */
activate_control_endpoints(dev);

9
drivers/usb/gadget/amd5536udc.h
View File

@ -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

32
drivers/usb/gadget/at91_udc.c
View File

@ -9,16 +9,6 @@
* 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.
*/
#undef VERBOSE_DEBUG
@ -460,7 +450,7 @@ static void nuke(struct at91_ep *ep, int status)
{
struct at91_request *req;
// terminer chaque requete dans la queue
/* terminate any request in the queue */
ep->stopped = 1;
if (list_empty(&ep->queue))
return;
@ -487,7 +477,7 @@ static int at91_ep_enable(struct usb_ep *_ep,
|| !desc || ep->desc
|| _ep->name == ep0name
|| desc->bDescriptorType != USB_DT_ENDPOINT
|| (maxpacket = le16_to_cpu(desc->wMaxPacketSize)) == 0
|| (maxpacket = usb_endpoint_maxp(desc)) == 0
|| maxpacket > ep->maxpacket) {
DBG("bad ep or descriptor\n");
return -EINVAL;
@ -788,7 +778,7 @@ static const struct usb_ep_ops at91_ep_ops = {
.queue = at91_ep_queue,
.dequeue = at91_ep_dequeue,
.set_halt = at91_ep_set_halt,
// there's only imprecise fifo status reporting
/* there's only imprecise fifo status reporting */
};
/*-------------------------------------------------------------------------*/
@ -846,7 +836,7 @@ static void udc_reinit(struct at91_udc *udc)
ep->fifo_bank = 0;
ep->ep.maxpacket = ep->maxpacket;
ep->creg = (void __iomem *) udc->udp_baseaddr + AT91_UDP_CSR(i);
// initialiser une queue par endpoint
/* initialize one queue per endpoint */
INIT_LIST_HEAD(&ep->queue);
}
}
@ -952,7 +942,7 @@ static int at91_vbus_session(struct usb_gadget *gadget, int is_active)
struct at91_udc *udc = to_udc(gadget);
unsigned long flags;
// VDBG("vbus %s\n", is_active ? "on" : "off");
/* VDBG("vbus %s\n", is_active ? "on" : "off"); */
spin_lock_irqsave(&udc->lock, flags);
udc->vbus = (is_active != 0);
if (udc->driver)
@ -1003,7 +993,7 @@ static const struct usb_gadget_ops at91_udc_ops = {
* VBUS-powered devices may also also want to support bigger
* power budgets after an appropriate SET_CONFIGURATION.
*/
// .vbus_power = at91_vbus_power,
/* .vbus_power = at91_vbus_power, */
};
/*-------------------------------------------------------------------------*/
@ -1072,7 +1062,7 @@ static void handle_setup(struct at91_udc *udc, struct at91_ep *ep, u32 csr)
ep->is_in = 0;
}
} else {
// REVISIT this happens sometimes under load; why??
/* REVISIT this happens sometimes under load; why?? */
ERR("SETUP len %d, csr %08x\n", rxcount, csr);
status = -EINVAL;
}
@ -1451,7 +1441,7 @@ static irqreturn_t at91_udc_irq (int irq, void *_udc)
at91_udp_write(udc, AT91_UDP_IDR, AT91_UDP_RXSUSP);
at91_udp_write(udc, AT91_UDP_IER, AT91_UDP_RXRSM);
at91_udp_write(udc, AT91_UDP_ICR, AT91_UDP_RXSUSP);
// VDBG("bus suspend\n");
/* VDBG("bus suspend\n"); */
if (udc->suspended)
continue;
udc->suspended = 1;
@ -1473,7 +1463,7 @@ static irqreturn_t at91_udc_irq (int irq, void *_udc)
at91_udp_write(udc, AT91_UDP_IDR, AT91_UDP_RXRSM);
at91_udp_write(udc, AT91_UDP_IER, AT91_UDP_RXSUSP);
at91_udp_write(udc, AT91_UDP_ICR, AT91_UDP_RXRSM);
// VDBG("bus resume\n");
/* VDBG("bus resume\n"); */
if (!udc->suspended)
continue;
udc->suspended = 0;
@ -1820,7 +1810,7 @@ static int __init at91udc_probe(struct platform_device *pdev)
/* request UDC and maybe VBUS irqs */
udc->udp_irq = platform_get_irq(pdev, 0);
retval = request_irq(udc->udp_irq, at91_udc_irq,
IRQF_DISABLED, driver_name, udc);
0, driver_name, udc);
if (retval < 0) {
DBG("request irq %d failed\n", udc->udp_irq);
goto fail1;
@ -1848,7 +1838,7 @@ static int __init at91udc_probe(struct platform_device *pdev)
jiffies + VBUS_POLL_TIMEOUT);
} else {
if (request_irq(udc->board.vbus_pin, at91_vbus_irq,
IRQF_DISABLED, driver_name, udc)) {
0, driver_name, udc)) {
DBG("request vbus irq %d failed\n",
udc->board.vbus_pin);
retval = -EBUSY;

10
drivers/usb/gadget/at91_udc.h
View File

@ -7,16 +7,6 @@
* 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 AT91_UDC_H

13
drivers/usb/gadget/atmel_usba_udc.c
View File

@ -527,7 +527,7 @@ usba_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
DBG(DBG_GADGET, "%s: ep_enable: desc=%p\n", ep->ep.name, desc);
maxpacket = le16_to_cpu(desc->wMaxPacketSize) & 0x7ff;
maxpacket = usb_endpoint_maxp(desc) & 0x7ff;
if (((desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK) != ep->index)
|| ep->index == 0
@ -571,7 +571,7 @@ usba_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
* Bits 11:12 specify number of _additional_
* transactions per microframe.
*/
nr_trans = ((le16_to_cpu(desc->wMaxPacketSize) >> 11) & 3) + 1;
nr_trans = ((usb_endpoint_maxp(desc) >> 11) & 3) + 1;
if (nr_trans > 3)
return -EINVAL;
@ -1718,13 +1718,12 @@ static irqreturn_t usba_udc_irq(int irq, void *devid)
spin_lock(&udc->lock);
}
if (status & USBA_HIGH_SPEED) {
DBG(DBG_BUS, "High-speed bus reset detected\n");
if (status & USBA_HIGH_SPEED)
udc->gadget.speed = USB_SPEED_HIGH;
} else {
DBG(DBG_BUS, "Full-speed bus reset detected\n");
else
udc->gadget.speed = USB_SPEED_FULL;
}
DBG(DBG_BUS, "%s bus reset detected\n",
usb_speed_string(udc->gadget.speed));
ep0 = &usba_ep[0];
ep0->desc = &usba_ep0_desc;

9
drivers/usb/gadget/cdc2.c
View File

@ -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
*/
#include <linux/kernel.h>

11
drivers/usb/gadget/ci13xxx_msm.c
View File

@ -3,17 +3,6 @@
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*/
#include <linux/module.h>

2
drivers/usb/gadget/ci13xxx_udc.c
View File

@ -2101,7 +2101,7 @@ static int ep_enable(struct usb_ep *ep,
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);

37
drivers/usb/gadget/composite.c
View File

@ -7,15 +7,6 @@
* 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
*/
/* #define VERBOSE_DEBUG */
@ -164,7 +155,7 @@ int config_ep_by_speed(struct usb_gadget *g,
ep_found:
/* commit results */
_ep->maxpacket = le16_to_cpu(chosen_desc->wMaxPacketSize);
_ep->maxpacket = usb_endpoint_maxp(chosen_desc);
_ep->desc = chosen_desc;
_ep->comp_desc = NULL;
_ep->maxburst = 0;
@ -551,9 +542,9 @@ static int bos_desc(struct usb_composite_dev *cdev)
if (cdev->gadget->ops->get_config_params)
cdev->gadget->ops->get_config_params(&dcd_config_params);
else {
dcd_config_params.bU1devExitLat = USB_DEFULT_U1_DEV_EXIT_LAT;
dcd_config_params.bU1devExitLat = USB_DEFAULT_U1_DEV_EXIT_LAT;
dcd_config_params.bU2DevExitLat =
cpu_to_le16(USB_DEFULT_U2_DEV_EXIT_LAT);
cpu_to_le16(USB_DEFAULT_U2_DEV_EXIT_LAT);
}
ss_cap->bU1devExitLat = dcd_config_params.bU1devExitLat;
ss_cap->bU2DevExitLat = dcd_config_params.bU2DevExitLat;
@ -626,25 +617,9 @@ static int set_config(struct usb_composite_dev *cdev,
result = 0;
}
INFO(cdev, "%s speed config #%d: %s\n",
({ char *speed;
switch (gadget->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;
default:
speed = "?";
break;
} ; speed; }), number, c ? c->label : "unconfigured");
INFO(cdev, "%s config #%d: %s\n",
usb_speed_string(gadget->speed),
number, c ? c->label : "unconfigured");
if (!c)
goto done;

9
drivers/usb/gadget/config.c
View File

@ -7,15 +7,6 @@
* 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
*/
#include <linux/errno.h>

1
drivers/usb/gadget/dbgp.c
View File

@ -4,7 +4,6 @@
* Copyright (C) 2010 Stephane Duverger
*
* Released under the GPLv2.
*
*/
/* verbose messages */

13
drivers/usb/gadget/dummy_hcd.c
View File

@ -10,15 +10,6 @@
* 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
*/
@ -439,7 +430,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
* maximum packet size.
* For SS devices the wMaxPacketSize is limited by 1024.
*/
max = le16_to_cpu(desc->wMaxPacketSize) & 0x7ff;
max = usb_endpoint_maxp(desc) & 0x7ff;
/* drivers must not request bad settings, since lower levels
* (hardware or its drivers) may not check. some endpoints
@ -1277,7 +1268,7 @@ static int periodic_bytes (struct dummy *dum, struct dummy_ep *ep)
int tmp;
/* high bandwidth mode */
tmp = le16_to_cpu(ep->desc->wMaxPacketSize);
tmp = usb_endpoint_maxp(ep->desc);
tmp = (tmp >> 11) & 0x03;
tmp *= 8 /* applies to entire frame */;
limit += limit * tmp;

12
drivers/usb/gadget/epautoconf.c
View File

@ -7,16 +7,6 @@
* 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
*
*/
#include <linux/kernel.h>
@ -158,7 +148,7 @@ ep_matches (
* where it's an output parameter representing the full speed limit.
* the usb spec fixes high speed bulk maxpacket at 512 bytes.
*/
max = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
max = 0x7ff & usb_endpoint_maxp(desc);
switch (type) {
case USB_ENDPOINT_XFER_INT:
/* INT: limit 64 bytes full speed, 1024 high/super speed */

9
drivers/usb/gadget/ether.c
View File

@ -9,15 +9,6 @@
* 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
*/
/* #define VERBOSE_DEBUG */

15
drivers/usb/gadget/f_audio.c
View File

@ -460,7 +460,7 @@ static int audio_set_endpoint_req(struct usb_function *f,
switch (ctrl->bRequest) {
case UAC_SET_CUR:
value = 0;
value = len;
break;
case UAC_SET_MIN:
@ -499,7 +499,7 @@ static int audio_get_endpoint_req(struct usb_function *f,
case UAC_GET_MIN:
case UAC_GET_MAX:
case UAC_GET_RES:
value = 3;
value = len;
break;
case UAC_GET_MEM:
break;
@ -681,17 +681,18 @@ f_audio_bind(struct usb_configuration *c, struct usb_function *f)
status = -ENOMEM;
/* supcard all relevant hardware speeds... we expect that when
/* copy descriptors, and track endpoint copies */
f->descriptors = usb_copy_descriptors(f_audio_desc);
/*
* support all relevant hardware speeds... we expect that when
* hardware is dual speed, all bulk-capable endpoints work at
* both speeds
*/
/* copy descriptors, and track endpoint copies */
if (gadget_is_dualspeed(c->cdev->gadget)) {
c->highspeed = true;
f->hs_descriptors = usb_copy_descriptors(f_audio_desc);
} else
f->descriptors = usb_copy_descriptors(f_audio_desc);
}
return 0;

9
drivers/usb/gadget/f_ecm.c
View File

@ -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
*/
/* #define VERBOSE_DEBUG */

9
drivers/usb/gadget/f_eem.c
View File

@ -9,15 +9,6 @@
* 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
*/
#include <linux/kernel.h>

9
drivers/usb/gadget/f_fs.c
View File

@ -12,15 +12,6 @@
* 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
*/

9
drivers/usb/gadget/f_hid.c
View File

@ -7,15 +7,6 @@
* 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
*/
#include <linux/kernel.h>

9
drivers/usb/gadget/f_loopback.c
View File

@ -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
*/
/* #define VERBOSE_DEBUG */

194
drivers/usb/gadget/f_mass_storage.c
View File

@ -112,8 +112,7 @@
* is not loaded (an empty string as "filename" in the fsg_config
* structure causes error). The CD-ROM emulation includes a single
* data track and no audio tracks; hence there need be only one
* backing file per LUN. Note also that the CD-ROM block length is
* set to 512 rather than the more common value 2048.
* backing file per LUN.
*
*
* MSF includes support for module parameters. If gadget using it
@ -363,7 +362,7 @@ struct fsg_common {
struct fsg_buffhd *next_buffhd_to_fill;
struct fsg_buffhd *next_buffhd_to_drain;
struct fsg_buffhd buffhds[FSG_NUM_BUFFERS];
struct fsg_buffhd *buffhds;
int cmnd_size;
u8 cmnd[MAX_COMMAND_SIZE];
@ -745,7 +744,6 @@ static int do_read(struct fsg_common *common)
u32 amount_left;
loff_t file_offset, file_offset_tmp;
unsigned int amount;
unsigned int partial_page;
ssize_t nread;
/*
@ -771,7 +769,7 @@ static int do_read(struct fsg_common *common)
curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
return -EINVAL;
}
file_offset = ((loff_t) lba) << 9;
file_offset = ((loff_t) lba) << curlun->blkbits;
/* Carry out the file reads */
amount_left = common->data_size_from_cmnd;
@ -784,18 +782,10 @@ static int do_read(struct fsg_common *common)
* Try to read the remaining amount.
* But don't read more than the buffer size.
* And don't try to read past the end of the file.
* Finally, if we're not at a page boundary, don't read past
* the next page.
* If this means reading 0 then we were asked to read past
* the end of file.
*/
amount = min(amount_left, FSG_BUFLEN);
amount = min((loff_t)amount,
curlun->file_length - file_offset);
partial_page = file_offset & (PAGE_CACHE_SIZE - 1);
if (partial_page > 0)
amount = min(amount, (unsigned int)PAGE_CACHE_SIZE -
partial_page);
/* Wait for the next buffer to become available */
bh = common->next_buffhd_to_fill;
@ -812,7 +802,8 @@ static int do_read(struct fsg_common *common)
if (amount == 0) {
curlun->sense_data =
SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info =
file_offset >> curlun->blkbits;
curlun->info_valid = 1;
bh->inreq->length = 0;
bh->state = BUF_STATE_FULL;
@ -835,18 +826,25 @@ static int do_read(struct fsg_common *common)
} else if (nread < amount) {
LDBG(curlun, "partial file read: %d/%u\n",
(int)nread, amount);
nread -= (nread & 511); /* Round down to a block */
nread = round_down(nread, curlun->blksize);
}
file_offset += nread;
amount_left -= nread;
common->residue -= nread;
/*
* Except at the end of the transfer, nread will be
* equal to the buffer size, which is divisible by the
* bulk-in maxpacket size.
*/
bh->inreq->length = nread;
bh->state = BUF_STATE_FULL;
/* If an error occurred, report it and its position */
if (nread < amount) {
curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info =
file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
@ -877,7 +875,6 @@ static int do_write(struct fsg_common *common)
u32 amount_left_to_req, amount_left_to_write;
loff_t usb_offset, file_offset, file_offset_tmp;
unsigned int amount;
unsigned int partial_page;
ssize_t nwritten;
int rc;
@ -921,7 +918,7 @@ static int do_write(struct fsg_common *common)
/* Carry out the file writes */
get_some_more = 1;
file_offset = usb_offset = ((loff_t) lba) << 9;
file_offset = usb_offset = ((loff_t) lba) << curlun->blkbits;
amount_left_to_req = common->data_size_from_cmnd;
amount_left_to_write = common->data_size_from_cmnd;
@ -933,41 +930,21 @@ static int do_write(struct fsg_common *common)
/*
* Figure out how much we want to get:
* Try to get the remaining amount.
* But don't get more than the buffer size.
* And don't try to go past the end of the file.
* If we're not at a page boundary,
* don't go past the next page.
* If this means getting 0, then we were asked
* to write past the end of file.
* Finally, round down to a block boundary.
* Try to get the remaining amount,
* but not more than the buffer size.
*/
amount = min(amount_left_to_req, FSG_BUFLEN);
amount = min((loff_t)amount,
curlun->file_length - usb_offset);
partial_page = usb_offset & (PAGE_CACHE_SIZE - 1);
if (partial_page > 0)
amount = min(amount,
(unsigned int)PAGE_CACHE_SIZE - partial_page);
if (amount == 0) {
/* Beyond the end of the backing file? */
if (usb_offset >= curlun->file_length) {
get_some_more = 0;
curlun->sense_data =
SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
curlun->sense_data_info = usb_offset >> 9;
curlun->sense_data_info =
usb_offset >> curlun->blkbits;
curlun->info_valid = 1;
continue;
}
amount -= amount & 511;
if (amount == 0) {
/*
* Why were we were asked to transfer a
* partial block?
*/
get_some_more = 0;
continue;
}
/* Get the next buffer */
usb_offset += amount;
@ -977,12 +954,11 @@ static int do_write(struct fsg_common *common)
get_some_more = 0;
/*
* amount is always divisible by 512, hence by
* the bulk-out maxpacket size
* Except at the end of the transfer, amount will be
* equal to the buffer size, which is divisible by
* the bulk-out maxpacket size.
*/
bh->outreq->length = amount;
bh->bulk_out_intended_length = amount;
bh->outreq->short_not_ok = 1;
set_bulk_out_req_length(common, bh, amount);
if (!start_out_transfer(common, bh))
/* Dunno what to do if common->fsg is NULL */
return -EIO;
@ -1002,7 +978,8 @@ static int do_write(struct fsg_common *common)
/* Did something go wrong with the transfer? */
if (bh->outreq->status != 0) {
curlun->sense_data = SS_COMMUNICATION_FAILURE;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info =
file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
@ -1016,6 +993,16 @@ static int do_write(struct fsg_common *common)
amount = curlun->file_length - file_offset;
}
/* Don't accept excess data. The spec doesn't say
* what to do in this case. We'll ignore the error.
*/
amount = min(amount, bh->bulk_out_intended_length);
/* Don't write a partial block */
amount = round_down(amount, curlun->blksize);
if (amount == 0)
goto empty_write;
/* Perform the write */
file_offset_tmp = file_offset;
nwritten = vfs_write(curlun->filp,
@ -1033,8 +1020,7 @@ static int do_write(struct fsg_common *common)
} else if (nwritten < amount) {
LDBG(curlun, "partial file write: %d/%u\n",
(int)nwritten, amount);
nwritten -= (nwritten & 511);
/* Round down to a block */
nwritten = round_down(nwritten, curlun->blksize);
}
file_offset += nwritten;
amount_left_to_write -= nwritten;
@ -1043,13 +1029,15 @@ static int do_write(struct fsg_common *common)
/* If an error occurred, report it and its position */
if (nwritten < amount) {
curlun->sense_data = SS_WRITE_ERROR;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info =
file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
empty_write:
/* Did the host decide to stop early? */
if (bh->outreq->actual != bh->outreq->length) {
if (bh->outreq->actual < bh->bulk_out_intended_length) {
common->short_packet_received = 1;
break;
}
@ -1129,8 +1117,8 @@ static int do_verify(struct fsg_common *common)
return -EIO; /* No default reply */
/* Prepare to carry out the file verify */
amount_left = verification_length << 9;
file_offset = ((loff_t) lba) << 9;
amount_left = verification_length << curlun->blkbits;
file_offset = ((loff_t) lba) << curlun->blkbits;
/* Write out all the dirty buffers before invalidating them */
fsg_lun_fsync_sub(curlun);
@ -1148,8 +1136,6 @@ static int do_verify(struct fsg_common *common)
* Try to read the remaining amount, but not more than
* the buffer size.
* And don't try to read past the end of the file.
* If this means reading 0 then we were asked to read
* past the end of file.
*/
amount = min(amount_left, FSG_BUFLEN);
amount = min((loff_t)amount,
@ -1157,7 +1143,8 @@ static int do_verify(struct fsg_common *common)
if (amount == 0) {
curlun->sense_data =
SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info =
file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
@ -1179,11 +1166,12 @@ static int do_verify(struct fsg_common *common)
} else if (nread < amount) {
LDBG(curlun, "partial file verify: %d/%u\n",
(int)nread, amount);
nread -= nread & 511; /* Round down to a sector */
nread = round_down(nread, curlun->blksize);
}
if (nread == 0) {
curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info =
file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
@ -1289,7 +1277,7 @@ static int do_read_capacity(struct fsg_common *common, struct fsg_buffhd *bh)
put_unaligned_be32(curlun->num_sectors - 1, &buf[0]);
/* Max logical block */
put_unaligned_be32(512, &buf[4]); /* Block length */
put_unaligned_be32(curlun->blksize, &buf[4]);/* Block length */
return 8;
}
@ -1527,7 +1515,7 @@ static int do_read_format_capacities(struct fsg_common *common,
put_unaligned_be32(curlun->num_sectors, &buf[0]);
/* Number of blocks */
put_unaligned_be32(512, &buf[4]); /* Block length */
put_unaligned_be32(curlun->blksize, &buf[4]);/* Block length */
buf[4] = 0x02; /* Current capacity */
return 12;
}
@ -1607,7 +1595,7 @@ static int throw_away_data(struct fsg_common *common)
common->next_buffhd_to_drain = bh->next;
/* A short packet or an error ends everything */
if (bh->outreq->actual != bh->outreq->length ||
if (bh->outreq->actual < bh->bulk_out_intended_length ||
bh->outreq->status != 0) {
raise_exception(common,
FSG_STATE_ABORT_BULK_OUT);
@ -1623,12 +1611,11 @@ static int throw_away_data(struct fsg_common *common)
amount = min(common->usb_amount_left, FSG_BUFLEN);
/*
* amount is always divisible by 512, hence by
* Except at the end of the transfer, amount will be
* equal to the buffer size, which is divisible by
* the bulk-out maxpacket size.
*/
bh->outreq->length = amount;
bh->bulk_out_intended_length = amount;
bh->outreq->short_not_ok = 1;
set_bulk_out_req_length(common, bh, amount);
if (!start_out_transfer(common, bh))
/* Dunno what to do if common->fsg is NULL */
return -EIO;
@ -2022,7 +2009,8 @@ static int do_scsi_command(struct fsg_common *common)
case READ_6:
i = common->cmnd[4];
common->data_size_from_cmnd = (i == 0 ? 256 : i) << 9;
common->data_size_from_cmnd = (i == 0 ? 256 : i) <<
common->curlun->blkbits;
reply = check_command(common, 6, DATA_DIR_TO_HOST,
(7<<1) | (1<<4), 1,
"READ(6)");
@ -2032,7 +2020,8 @@ static int do_scsi_command(struct fsg_common *common)
case READ_10:
common->data_size_from_cmnd =
get_unaligned_be16(&common->cmnd[7]) << 9;
get_unaligned_be16(&common->cmnd[7]) <<
common->curlun->blkbits;
reply = check_command(common, 10, DATA_DIR_TO_HOST,
(1<<1) | (0xf<<2) | (3<<7), 1,
"READ(10)");
@ -2042,7 +2031,8 @@ static int do_scsi_command(struct fsg_common *common)
case READ_12:
common->data_size_from_cmnd =
get_unaligned_be32(&common->cmnd[6]) << 9;
get_unaligned_be32(&common->cmnd[6]) <<
common->curlun->blkbits;
reply = check_command(common, 12, DATA_DIR_TO_HOST,
(1<<1) | (0xf<<2) | (0xf<<6), 1,
"READ(12)");
@ -2142,7 +2132,8 @@ static int do_scsi_command(struct fsg_common *common)
case WRITE_6:
i = common->cmnd[4];
common->data_size_from_cmnd = (i == 0 ? 256 : i) << 9;
common->data_size_from_cmnd = (i == 0 ? 256 : i) <<
common->curlun->blkbits;
reply = check_command(common, 6, DATA_DIR_FROM_HOST,
(7<<1) | (1<<4), 1,
"WRITE(6)");
@ -2152,7 +2143,8 @@ static int do_scsi_command(struct fsg_common *common)
case WRITE_10:
common->data_size_from_cmnd =
get_unaligned_be16(&common->cmnd[7]) << 9;
get_unaligned_be16(&common->cmnd[7]) <<
common->curlun->blkbits;
reply = check_command(common, 10, DATA_DIR_FROM_HOST,
(1<<1) | (0xf<<2) | (3<<7), 1,
"WRITE(10)");
@ -2162,7 +2154,8 @@ static int do_scsi_command(struct fsg_common *common)
case WRITE_12:
common->data_size_from_cmnd =
get_unaligned_be32(&common->cmnd[6]) << 9;
get_unaligned_be32(&common->cmnd[6]) <<
common->curlun->blkbits;
reply = check_command(common, 12, DATA_DIR_FROM_HOST,
(1<<1) | (0xf<<2) | (0xf<<6), 1,
"WRITE(12)");
@ -2297,7 +2290,6 @@ static int get_next_command(struct fsg_common *common)
/* Queue a request to read a Bulk-only CBW */
set_bulk_out_req_length(common, bh, USB_BULK_CB_WRAP_LEN);
bh->outreq->short_not_ok = 1;
if (!start_out_transfer(common, bh))
/* Don't know what to do if common->fsg is NULL */
return -EIO;
@ -2348,7 +2340,7 @@ static int do_set_interface(struct fsg_common *common, struct fsg_dev *new_fsg)
if (common->fsg) {
fsg = common->fsg;
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
struct fsg_buffhd *bh = &common->buffhds[i];
if (bh->inreq) {
@ -2401,12 +2393,11 @@ static int do_set_interface(struct fsg_common *common, struct fsg_dev *new_fsg)
goto reset;
fsg->bulk_out->driver_data = common;
fsg->bulk_out_enabled = 1;
common->bulk_out_maxpacket =
le16_to_cpu(fsg->bulk_out->desc->wMaxPacketSize);
common->bulk_out_maxpacket = usb_endpoint_maxp(fsg->bulk_out->desc);
clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
/* Allocate the requests */
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
struct fsg_buffhd *bh = &common->buffhds[i];
rc = alloc_request(common, fsg->bulk_in, &bh->inreq);
@ -2475,7 +2466,7 @@ static void handle_exception(struct fsg_common *common)
/* Cancel all the pending transfers */
if (likely(common->fsg)) {
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
bh = &common->buffhds[i];
if (bh->inreq_busy)
usb_ep_dequeue(common->fsg->bulk_in, bh->inreq);
@ -2487,7 +2478,7 @@ static void handle_exception(struct fsg_common *common)
/* Wait until everything is idle */
for (;;) {
int num_active = 0;
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
bh = &common->buffhds[i];
num_active += bh->inreq_busy + bh->outreq_busy;
}
@ -2510,7 +2501,7 @@ static void handle_exception(struct fsg_common *common)
*/
spin_lock_irq(&common->lock);
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
bh = &common->buffhds[i];
bh->state = BUF_STATE_EMPTY;
}
@ -2719,6 +2710,10 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
int nluns, i, rc;
char *pathbuf;
rc = fsg_num_buffers_validate();
if (rc != 0)
return ERR_PTR(rc);
/* Find out how many LUNs there should be */
nluns = cfg->nluns;
if (nluns < 1 || nluns > FSG_MAX_LUNS) {
@ -2737,6 +2732,14 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
common->free_storage_on_release = 0;
}
common->buffhds = kcalloc(fsg_num_buffers,
sizeof *(common->buffhds), GFP_KERNEL);
if (!common->buffhds) {
if (common->free_storage_on_release)
kfree(common);
return ERR_PTR(-ENOMEM);
}
common->ops = cfg->ops;
common->private_data = cfg->private_data;
@ -2814,7 +2817,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
/* Data buffers cyclic list */
bh = common->buffhds;
i = FSG_NUM_BUFFERS;
i = fsg_num_buffers;
goto buffhds_first_it;
do {
bh->next = bh + 1;
@ -2940,12 +2943,13 @@ static void fsg_common_release(struct kref *ref)
{
struct fsg_buffhd *bh = common->buffhds;
unsigned i = FSG_NUM_BUFFERS;
unsigned i = fsg_num_buffers;
do {
kfree(bh->buf);
} while (++bh, --i);
}
kfree(common->buffhds);
if (common->free_storage_on_release)
kfree(common);
}
@ -3019,6 +3023,28 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
}
}
if (gadget_is_superspeed(gadget)) {
unsigned max_burst;
/* Calculate bMaxBurst, we know packet size is 1024 */
max_burst = min_t(unsigned, FSG_BUFLEN / 1024, 15);
fsg_ss_bulk_in_desc.bEndpointAddress =
fsg_fs_bulk_in_desc.bEndpointAddress;
fsg_ss_bulk_in_comp_desc.bMaxBurst = max_burst;
fsg_ss_bulk_out_desc.bEndpointAddress =
fsg_fs_bulk_out_desc.bEndpointAddress;
fsg_ss_bulk_out_comp_desc.bMaxBurst = max_burst;
f->ss_descriptors = usb_copy_descriptors(fsg_ss_function);
if (unlikely(!f->ss_descriptors)) {
usb_free_descriptors(f->hs_descriptors);
usb_free_descriptors(f->descriptors);
return -ENOMEM;
}
}
return 0;
autoconf_fail:

998
drivers/usb/gadget/f_midi.c Normal file
View File

@ -0,0 +1,998 @@
/*
* f_midi.c -- USB MIDI class function driver
*
* Copyright (C) 2006 Thumtronics Pty Ltd.
* Developed for Thumtronics by Grey Innovation
* Ben Williamson <ben.williamson@greyinnovation.com>
*
* Rewritten for the composite framework
* Copyright (C) 2011 Daniel Mack <zonque@gmail.com>
*
* Based on drivers/usb/gadget/f_audio.c,
* Copyright (C) 2008 Bryan Wu <cooloney@kernel.org>
* Copyright (C) 2008 Analog Devices, Inc
*
* and drivers/usb/gadget/midi.c,
* Copyright (C) 2006 Thumtronics Pty Ltd.
* Ben Williamson <ben.williamson@greyinnovation.com>
*
* Licensed under the GPL-2 or later.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/utsname.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/rawmidi.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/audio.h>
#include <linux/usb/midi.h>
MODULE_AUTHOR("Ben Williamson");
MODULE_LICENSE("GPL v2");
static const char f_midi_shortname[] = "f_midi";
static const char f_midi_longname[] = "MIDI Gadget";
/*
* We can only handle 16 cables on one single endpoint, as cable numbers are
* stored in 4-bit fields. And as the interface currently only holds one
* single endpoint, this is the maximum number of ports we can allow.
*/
#define MAX_PORTS 16
/*
* This is a gadget, and the IN/OUT naming is from the host's perspective.
* USB -> OUT endpoint -> rawmidi
* USB <- IN endpoint <- rawmidi
*/
struct gmidi_in_port {
struct f_midi *midi;
int active;
uint8_t cable;
uint8_t state;
#define STATE_UNKNOWN 0
#define STATE_1PARAM 1
#define STATE_2PARAM_1 2
#define STATE_2PARAM_2 3
#define STATE_SYSEX_0 4
#define STATE_SYSEX_1 5
#define STATE_SYSEX_2 6
uint8_t data[2];
};
struct f_midi {
struct usb_function func;
struct usb_gadget *gadget;
struct usb_ep *in_ep, *out_ep;
struct snd_card *card;
struct snd_rawmidi *rmidi;
struct snd_rawmidi_substream *in_substream[MAX_PORTS];
struct snd_rawmidi_substream *out_substream[MAX_PORTS];
struct gmidi_in_port *in_port[MAX_PORTS];
unsigned long out_triggered;
struct tasklet_struct tasklet;
unsigned int in_ports;
unsigned int out_ports;
int index;
char *id;
unsigned int buflen, qlen;
};
static inline struct f_midi *func_to_midi(struct usb_function *f)
{
return container_of(f, struct f_midi, func);
}
static void f_midi_transmit(struct f_midi *midi, struct usb_request *req);
DECLARE_UAC_AC_HEADER_DESCRIPTOR(1);
DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(1);
DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(16);
DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(16);
/* B.3.1 Standard AC Interface Descriptor */
static struct usb_interface_descriptor ac_interface_desc __initdata = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
/* .bInterfaceNumber = DYNAMIC */
/* .bNumEndpoints = DYNAMIC */
.bInterfaceClass = USB_CLASS_AUDIO,
.bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
/* .iInterface = DYNAMIC */
};
/* B.3.2 Class-Specific AC Interface Descriptor */
static struct uac1_ac_header_descriptor_1 ac_header_desc __initdata = {
.bLength = UAC_DT_AC_HEADER_SIZE(1),
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = USB_MS_HEADER,
.bcdADC = cpu_to_le16(0x0100),
.wTotalLength = cpu_to_le16(UAC_DT_AC_HEADER_SIZE(1)),
.bInCollection = 1,
/* .baInterfaceNr = DYNAMIC */
};
/* B.4.1 Standard MS Interface Descriptor */
static struct usb_interface_descriptor ms_interface_desc __initdata = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
/* .bInterfaceNumber = DYNAMIC */
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_AUDIO,
.bInterfaceSubClass = USB_SUBCLASS_MIDISTREAMING,
/* .iInterface = DYNAMIC */
};
/* B.4.2 Class-Specific MS Interface Descriptor */
static struct usb_ms_header_descriptor ms_header_desc __initdata = {
.bLength = USB_DT_MS_HEADER_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = USB_MS_HEADER,
.bcdMSC = cpu_to_le16(0x0100),
/* .wTotalLength = DYNAMIC */
};
/* B.4.3 Embedded MIDI IN Jack Descriptor */
static struct usb_midi_in_jack_descriptor jack_in_emb_desc = {
.bLength = USB_DT_MIDI_IN_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = USB_MS_MIDI_IN_JACK,
.bJackType = USB_MS_EMBEDDED,
/* .bJackID = DYNAMIC */
};
/* B.4.4 Embedded MIDI OUT Jack Descriptor */
static struct usb_midi_out_jack_descriptor_16 jack_out_emb_desc = {
/* .bLength = DYNAMIC */
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = USB_MS_MIDI_OUT_JACK,
.bJackType = USB_MS_EMBEDDED,
/* .bJackID = DYNAMIC */
/* .bNrInputPins = DYNAMIC */
/* .pins = DYNAMIC */
};
/* B.5.1 Standard Bulk OUT Endpoint Descriptor */
static struct usb_endpoint_descriptor bulk_out_desc = {
.bLength = USB_DT_ENDPOINT_AUDIO_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
/* B.5.2 Class-specific MS Bulk OUT Endpoint Descriptor */
static struct usb_ms_endpoint_descriptor_16 ms_out_desc = {
/* .bLength = DYNAMIC */
.bDescriptorType = USB_DT_CS_ENDPOINT,
.bDescriptorSubtype = USB_MS_GENERAL,
/* .bNumEmbMIDIJack = DYNAMIC */
/* .baAssocJackID = DYNAMIC */
};
/* B.6.1 Standard Bulk IN Endpoint Descriptor */
static struct usb_endpoint_descriptor bulk_in_desc = {
.bLength = USB_DT_ENDPOINT_AUDIO_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
/* B.6.2 Class-specific MS Bulk IN Endpoint Descriptor */
static struct usb_ms_endpoint_descriptor_16 ms_in_desc = {
/* .bLength = DYNAMIC */
.bDescriptorType = USB_DT_CS_ENDPOINT,
.bDescriptorSubtype = USB_MS_GENERAL,
/* .bNumEmbMIDIJack = DYNAMIC */
/* .baAssocJackID = DYNAMIC */
};
/* string IDs are assigned dynamically */
#define STRING_FUNC_IDX 0
static struct usb_string midi_string_defs[] = {
[STRING_FUNC_IDX].s = "MIDI function",
{ } /* end of list */
};
static struct usb_gadget_strings midi_stringtab = {
.language = 0x0409, /* en-us */
.strings = midi_string_defs,
};
static struct usb_gadget_strings *midi_strings[] = {
&midi_stringtab,
NULL,
};
static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length)
{
struct usb_request *req;
req = usb_ep_alloc_request(ep, GFP_ATOMIC);
if (req) {
req->length = length;
req->buf = kmalloc(length, GFP_ATOMIC);
if (!req->buf) {
usb_ep_free_request(ep, req);
req = NULL;
}
}
return req;
}
static void free_ep_req(struct usb_ep *ep, struct usb_request *req)
{
kfree(req->buf);
usb_ep_free_request(ep, req);
}
static const uint8_t f_midi_cin_length[] = {
0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1
};
/*
* Receives a chunk of MIDI data.
*/
static void f_midi_read_data(struct usb_ep *ep, int cable,
uint8_t *data, int length)
{
struct f_midi *midi = ep->driver_data;
struct snd_rawmidi_substream *substream = midi->out_substream[cable];
if (!substream)
/* Nobody is listening - throw it on the floor. */
return;
if (!test_bit(cable, &midi->out_triggered))
return;
snd_rawmidi_receive(substream, data, length);
}
static void f_midi_handle_out_data(struct usb_ep *ep, struct usb_request *req)
{
unsigned int i;
u8 *buf = req->buf;
for (i = 0; i + 3 < req->actual; i += 4)
if (buf[i] != 0) {
int cable = buf[i] >> 4;
int length = f_midi_cin_length[buf[i] & 0x0f];
f_midi_read_data(ep, cable, &buf[i + 1], length);
}
}
static void
f_midi_complete(struct usb_ep *ep, struct usb_request *req)
{
struct f_midi *midi = ep->driver_data;
struct usb_composite_dev *cdev = midi->func.config->cdev;
int status = req->status;
switch (status) {
case 0: /* normal completion */
if (ep == midi->out_ep) {
/* We received stuff. req is queued again, below */
f_midi_handle_out_data(ep, req);
} else if (ep == midi->in_ep) {
/* Our transmit completed. See if there's more to go.
* f_midi_transmit eats req, don't queue it again. */
f_midi_transmit(midi, req);
return;
}
break;
/* this endpoint is normally active while we're configured */
case -ECONNABORTED: /* hardware forced ep reset */
case -ECONNRESET: /* request dequeued */
case -ESHUTDOWN: /* disconnect from host */
VDBG(cdev, "%s gone (%d), %d/%d\n", ep->name, status,
req->actual, req->length);
if (ep == midi->out_ep)
f_midi_handle_out_data(ep, req);
free_ep_req(ep, req);
return;
case -EOVERFLOW: /* buffer overrun on read means that
* we didn't provide a big enough buffer.
*/
default:
DBG(cdev, "%s complete --> %d, %d/%d\n", ep->name,
status, req->actual, req->length);
break;
case -EREMOTEIO: /* short read */
break;
}
status = usb_ep_queue(ep, req, GFP_ATOMIC);
if (status) {
ERROR(cdev, "kill %s: resubmit %d bytes --> %d\n",
ep->name, req->length, status);
usb_ep_set_halt(ep);
/* FIXME recover later ... somehow */
}
}
static int f_midi_start_ep(struct f_midi *midi,
struct usb_function *f,
struct usb_ep *ep)
{
int err;
struct usb_composite_dev *cdev = f->config->cdev;
if (ep->driver_data)
usb_ep_disable(ep);
err = config_ep_by_speed(midi->gadget, f, ep);
if (err) {
ERROR(cdev, "can't configure %s: %d\n", ep->name, err);
return err;
}
err = usb_ep_enable(ep);
if (err) {
ERROR(cdev, "can't start %s: %d\n", ep->name, err);
return err;
}
ep->driver_data = midi;
return 0;
}
static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
{
struct f_midi *midi = func_to_midi(f);
struct usb_composite_dev *cdev = f->config->cdev;
unsigned i;
int err;
err = f_midi_start_ep(midi, f, midi->in_ep);
if (err)
return err;
err = f_midi_start_ep(midi, f, midi->out_ep);
if (err)
return err;
if (midi->out_ep->driver_data)
usb_ep_disable(midi->out_ep);
err = config_ep_by_speed(midi->gadget, f, midi->out_ep);
if (err) {
ERROR(cdev, "can't configure %s: %d\n",
midi->out_ep->name, err);
return err;
}
err = usb_ep_enable(midi->out_ep);
if (err) {
ERROR(cdev, "can't start %s: %d\n",
midi->out_ep->name, err);
return err;
}
midi->out_ep->driver_data = midi;
/* allocate a bunch of read buffers and queue them all at once. */
for (i = 0; i < midi->qlen && err == 0; i++) {
struct usb_request *req =
alloc_ep_req(midi->out_ep, midi->buflen);
if (req == NULL)
return -ENOMEM;
req->complete = f_midi_complete;
err = usb_ep_queue(midi->out_ep, req, GFP_ATOMIC);
if (err) {
ERROR(midi, "%s queue req: %d\n",
midi->out_ep->name, err);
}
}
return 0;
}
static void f_midi_disable(struct usb_function *f)
{
struct f_midi *midi = func_to_midi(f);
struct usb_composite_dev *cdev = f->config->cdev;
DBG(cdev, "disable\n");
/*
* just disable endpoints, forcing completion of pending i/o.
* all our completion handlers free their requests in this case.
*/
usb_ep_disable(midi->in_ep);
usb_ep_disable(midi->out_ep);
}
static void f_midi_unbind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = f->config->cdev;
struct f_midi *midi = func_to_midi(f);
struct snd_card *card;
DBG(cdev, "unbind\n");
/* just to be sure */
f_midi_disable(f);
card = midi->card;
midi->card = NULL;
if (card)
snd_card_free(card);
kfree(midi->id);
midi->id = NULL;
usb_free_descriptors(f->descriptors);
kfree(midi);
}
static int f_midi_snd_free(struct snd_device *device)
{
return 0;
}
static void f_midi_transmit_packet(struct usb_request *req, uint8_t p0,
uint8_t p1, uint8_t p2, uint8_t p3)
{
unsigned length = req->length;
u8 *buf = (u8 *)req->buf + length;
buf[0] = p0;
buf[1] = p1;
buf[2] = p2;
buf[3] = p3;
req->length = length + 4;
}
/*
* Converts MIDI commands to USB MIDI packets.
*/
static void f_midi_transmit_byte(struct usb_request *req,
struct gmidi_in_port *port, uint8_t b)
{
uint8_t p0 = port->cable << 4;
if (b >= 0xf8) {
f_midi_transmit_packet(req, p0 | 0x0f, b, 0, 0);
} else if (b >= 0xf0) {
switch (b) {
case 0xf0:
port->data[0] = b;
port->state = STATE_SYSEX_1;
break;
case 0xf1:
case 0xf3:
port->data[0] = b;
port->state = STATE_1PARAM;
break;
case 0xf2:
port->data[0] = b;
port->state = STATE_2PARAM_1;
break;
case 0xf4:
case 0xf5:
port->state = STATE_UNKNOWN;
break;
case 0xf6:
f_midi_transmit_packet(req, p0 | 0x05, 0xf6, 0, 0);
port->state = STATE_UNKNOWN;
break;
case 0xf7:
switch (port->state) {
case STATE_SYSEX_0:
f_midi_transmit_packet(req,
p0 | 0x05, 0xf7, 0, 0);
break;
case STATE_SYSEX_1:
f_midi_transmit_packet(req,
p0 | 0x06, port->data[0], 0xf7, 0);
break;
case STATE_SYSEX_2:
f_midi_transmit_packet(req,
p0 | 0x07, port->data[0],
port->data[1], 0xf7);
break;
}
port->state = STATE_UNKNOWN;
break;
}
} else if (b >= 0x80) {
port->data[0] = b;
if (b >= 0xc0 && b <= 0xdf)
port->state = STATE_1PARAM;
else
port->state = STATE_2PARAM_1;
} else { /* b < 0x80 */
switch (port->state) {
case STATE_1PARAM:
if (port->data[0] < 0xf0) {
p0 |= port->data[0] >> 4;
} else {
p0 |= 0x02;
port->state = STATE_UNKNOWN;
}
f_midi_transmit_packet(req, p0, port->data[0], b, 0);
break;
case STATE_2PARAM_1:
port->data[1] = b;
port->state = STATE_2PARAM_2;
break;
case STATE_2PARAM_2:
if (port->data[0] < 0xf0) {
p0 |= port->data[0] >> 4;
port->state = STATE_2PARAM_1;
} else {
p0 |= 0x03;
port->state = STATE_UNKNOWN;
}
f_midi_transmit_packet(req,
p0, port->data[0], port->data[1], b);
break;
case STATE_SYSEX_0:
port->data[0] = b;
port->state = STATE_SYSEX_1;
break;
case STATE_SYSEX_1:
port->data[1] = b;
port->state = STATE_SYSEX_2;
break;
case STATE_SYSEX_2:
f_midi_transmit_packet(req,
p0 | 0x04, port->data[0], port->data[1], b);
port->state = STATE_SYSEX_0;
break;
}
}
}
static void f_midi_transmit(struct f_midi *midi, struct usb_request *req)
{
struct usb_ep *ep = midi->in_ep;
int i;
if (!ep)
return;
if (!req)
req = alloc_ep_req(ep, midi->buflen);
if (!req) {
ERROR(midi, "gmidi_transmit: alloc_ep_request failed\n");
return;
}
req->length = 0;
req->complete = f_midi_complete;
for (i = 0; i < MAX_PORTS; i++) {
struct gmidi_in_port *port = midi->in_port[i];
struct snd_rawmidi_substream *substream = midi->in_substream[i];
if (!port || !port->active || !substream)
continue;
while (req->length + 3 < midi->buflen) {
uint8_t b;
if (snd_rawmidi_transmit(substream, &b, 1) != 1) {
port->active = 0;
break;
}
f_midi_transmit_byte(req, port, b);
}
}
if (req->length > 0)
usb_ep_queue(ep, req, GFP_ATOMIC);
else
free_ep_req(ep, req);
}
static void f_midi_in_tasklet(unsigned long data)
{
struct f_midi *midi = (struct f_midi *) data;
f_midi_transmit(midi, NULL);
}
static int f_midi_in_open(struct snd_rawmidi_substream *substream)
{
struct f_midi *midi = substream->rmidi->private_data;
if (!midi->in_port[substream->number])
return -EINVAL;
VDBG(midi, "%s()\n", __func__);
midi->in_substream[substream->number] = substream;
midi->in_port[substream->number]->state = STATE_UNKNOWN;
return 0;
}
static int f_midi_in_close(struct snd_rawmidi_substream *substream)
{
struct f_midi *midi = substream->rmidi->private_data;
VDBG(midi, "%s()\n", __func__);
return 0;
}
static void f_midi_in_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct f_midi *midi = substream->rmidi->private_data;
if (!midi->in_port[substream->number])
return;
VDBG(midi, "%s() %d\n", __func__, up);
midi->in_port[substream->number]->active = up;
if (up)
tasklet_hi_schedule(&midi->tasklet);
}
static int f_midi_out_open(struct snd_rawmidi_substream *substream)
{
struct f_midi *midi = substream->rmidi->private_data;
if (substream->number >= MAX_PORTS)
return -EINVAL;
VDBG(midi, "%s()\n", __func__);
midi->out_substream[substream->number] = substream;
return 0;
}
static int f_midi_out_close(struct snd_rawmidi_substream *substream)
{
struct f_midi *midi = substream->rmidi->private_data;
VDBG(midi, "%s()\n", __func__);
return 0;
}
static void f_midi_out_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct f_midi *midi = substream->rmidi->private_data;
VDBG(midi, "%s()\n", __func__);
if (up)
set_bit(substream->number, &midi->out_triggered);
else
clear_bit(substream->number, &midi->out_triggered);
}
static struct snd_rawmidi_ops gmidi_in_ops = {
.open = f_midi_in_open,
.close = f_midi_in_close,
.trigger = f_midi_in_trigger,
};
static struct snd_rawmidi_ops gmidi_out_ops = {
.open = f_midi_out_open,
.close = f_midi_out_close,
.trigger = f_midi_out_trigger
};
/* register as a sound "card" */
static int f_midi_register_card(struct f_midi *midi)
{
struct snd_card *card;
struct snd_rawmidi *rmidi;
int err;
static struct snd_device_ops ops = {
.dev_free = f_midi_snd_free,
};
err = snd_card_create(midi->index, midi->id, THIS_MODULE, 0, &card);
if (err < 0) {
ERROR(midi, "snd_card_create() failed\n");
goto fail;
}
midi->card = card;
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, midi, &ops);
if (err < 0) {
ERROR(midi, "snd_device_new() failed: error %d\n", err);
goto fail;
}
strcpy(card->driver, f_midi_longname);
strcpy(card->longname, f_midi_longname);
strcpy(card->shortname, f_midi_shortname);
/* Set up rawmidi */
snd_component_add(card, "MIDI");
err = snd_rawmidi_new(card, card->longname, 0,
midi->out_ports, midi->in_ports, &rmidi);
if (err < 0) {
ERROR(midi, "snd_rawmidi_new() failed: error %d\n", err);
goto fail;
}
midi->rmidi = rmidi;
strcpy(rmidi->name, card->shortname);
rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
SNDRV_RAWMIDI_INFO_INPUT |
SNDRV_RAWMIDI_INFO_DUPLEX;
rmidi->private_data = midi;
/*
* Yes, rawmidi OUTPUT = USB IN, and rawmidi INPUT = USB OUT.
* It's an upside-down world being a gadget.
*/
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &gmidi_in_ops);
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &gmidi_out_ops);
snd_card_set_dev(card, &midi->gadget->dev);
/* register it - we're ready to go */
err = snd_card_register(card);
if (err < 0) {
ERROR(midi, "snd_card_register() failed\n");
goto fail;
}
VDBG(midi, "%s() finished ok\n", __func__);
return 0;
fail:
if (midi->card) {
snd_card_free(midi->card);
midi->card = NULL;
}
return err;
}
/* MIDI function driver setup/binding */
static int __init
f_midi_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_descriptor_header *midi_function[(MAX_PORTS * 2) + 12];
struct usb_midi_in_jack_descriptor jack_in_ext_desc[MAX_PORTS];
struct usb_midi_out_jack_descriptor_1 jack_out_ext_desc[MAX_PORTS];
struct usb_composite_dev *cdev = c->cdev;
struct f_midi *midi = func_to_midi(f);
int status, n, jack = 1, i = 0;
/* maybe allocate device-global string ID */
if (midi_string_defs[0].id == 0) {
status = usb_string_id(c->cdev);
if (status < 0)
goto fail;
midi_string_defs[0].id = status;
}
/* We have two interfaces, AudioControl and MIDIStreaming */
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
ac_interface_desc.bInterfaceNumber = status;
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
ms_interface_desc.bInterfaceNumber = status;
ac_header_desc.baInterfaceNr[0] = status;
status = -ENODEV;
/* allocate instance-specific endpoints */
midi->in_ep = usb_ep_autoconfig(cdev->gadget, &bulk_in_desc);
if (!midi->in_ep)
goto fail;
midi->in_ep->driver_data = cdev; /* claim */
midi->out_ep = usb_ep_autoconfig(cdev->gadget, &bulk_out_desc);
if (!midi->out_ep)
goto fail;
midi->out_ep->driver_data = cdev; /* claim */
/*
* construct the function's descriptor set. As the number of
* input and output MIDI ports is configurable, we have to do
* it that way.
*/
/* add the headers - these are always the same */
midi_function[i++] = (struct usb_descriptor_header *) &ac_interface_desc;
midi_function[i++] = (struct usb_descriptor_header *) &ac_header_desc;
midi_function[i++] = (struct usb_descriptor_header *) &ms_interface_desc;
/* calculate the header's wTotalLength */
n = USB_DT_MS_HEADER_SIZE
+ (1 + midi->in_ports) * USB_DT_MIDI_IN_SIZE
+ (1 + midi->out_ports) * USB_DT_MIDI_OUT_SIZE(1);
ms_header_desc.wTotalLength = cpu_to_le16(n);
midi_function[i++] = (struct usb_descriptor_header *) &ms_header_desc;
/* we have one embedded IN jack */
jack_in_emb_desc.bJackID = jack++;
midi_function[i++] = (struct usb_descriptor_header *) &jack_in_emb_desc;
/* and a dynamic amount of external IN jacks */
for (n = 0; n < midi->in_ports; n++) {
struct usb_midi_in_jack_descriptor *ext = &jack_in_ext_desc[n];
ext->bLength = USB_DT_MIDI_IN_SIZE;
ext->bDescriptorType = USB_DT_CS_INTERFACE;
ext->bDescriptorSubtype = USB_MS_MIDI_IN_JACK;
ext->bJackType = USB_MS_EXTERNAL;
ext->bJackID = jack++;
ext->iJack = 0;
midi_function[i++] = (struct usb_descriptor_header *) ext;
}
/* one embedded OUT jack ... */
jack_out_emb_desc.bLength = USB_DT_MIDI_OUT_SIZE(midi->in_ports);
jack_out_emb_desc.bJackID = jack++;
jack_out_emb_desc.bNrInputPins = midi->in_ports;
/* ... which referencess all external IN jacks */
for (n = 0; n < midi->in_ports; n++) {
jack_out_emb_desc.pins[n].baSourceID = jack_in_ext_desc[n].bJackID;
jack_out_emb_desc.pins[n].baSourcePin = 1;
}
midi_function[i++] = (struct usb_descriptor_header *) &jack_out_emb_desc;
/* and multiple external OUT jacks ... */
for (n = 0; n < midi->out_ports; n++) {
struct usb_midi_out_jack_descriptor_1 *ext = &jack_out_ext_desc[n];
int m;
ext->bLength = USB_DT_MIDI_OUT_SIZE(1);
ext->bDescriptorType = USB_DT_CS_INTERFACE;
ext->bDescriptorSubtype = USB_MS_MIDI_OUT_JACK;
ext->bJackType = USB_MS_EXTERNAL;
ext->bJackID = jack++;
ext->bNrInputPins = 1;
ext->iJack = 0;
/* ... which all reference the same embedded IN jack */
for (m = 0; m < midi->out_ports; m++) {
ext->pins[m].baSourceID = jack_in_emb_desc.bJackID;
ext->pins[m].baSourcePin = 1;
}
midi_function[i++] = (struct usb_descriptor_header *) ext;
}
/* configure the endpoint descriptors ... */
ms_out_desc.bLength = USB_DT_MS_ENDPOINT_SIZE(midi->in_ports);
ms_out_desc.bNumEmbMIDIJack = midi->in_ports;
for (n = 0; n < midi->in_ports; n++)
ms_out_desc.baAssocJackID[n] = jack_in_emb_desc.bJackID;
ms_in_desc.bLength = USB_DT_MS_ENDPOINT_SIZE(midi->out_ports);
ms_in_desc.bNumEmbMIDIJack = midi->out_ports;
for (n = 0; n < midi->out_ports; n++)
ms_in_desc.baAssocJackID[n] = jack_out_emb_desc.bJackID;
/* ... and add them to the list */
midi_function[i++] = (struct usb_descriptor_header *) &bulk_out_desc;
midi_function[i++] = (struct usb_descriptor_header *) &ms_out_desc;
midi_function[i++] = (struct usb_descriptor_header *) &bulk_in_desc;
midi_function[i++] = (struct usb_descriptor_header *) &ms_in_desc;
midi_function[i++] = NULL;
/*
* support all relevant hardware speeds... we expect that when
* hardware is dual speed, all bulk-capable endpoints work at
* both speeds
*/
/* copy descriptors, and track endpoint copies */
if (gadget_is_dualspeed(c->cdev->gadget)) {
c->highspeed = true;
bulk_in_desc.wMaxPacketSize = cpu_to_le16(512);
bulk_out_desc.wMaxPacketSize = cpu_to_le16(512);
f->hs_descriptors = usb_copy_descriptors(midi_function);
} else {
f->descriptors = usb_copy_descriptors(midi_function);
}
return 0;
fail:
/* we might as well release our claims on endpoints */
if (midi->out_ep)
midi->out_ep->driver_data = NULL;
if (midi->in_ep)
midi->in_ep->driver_data = NULL;
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
}
/**
* f_midi_bind_config - add USB MIDI function to a configuration
* @c: the configuration to supcard the USB audio function
* @index: the soundcard index to use for the ALSA device creation
* @id: the soundcard id to use for the ALSA device creation
* @buflen: the buffer length to use
* @qlen the number of read requests to pre-allocate
* Context: single threaded during gadget setup
*
* Returns zero on success, else negative errno.
*/
int __init f_midi_bind_config(struct usb_configuration *c,
int index, char *id,
unsigned int in_ports,
unsigned int out_ports,
unsigned int buflen,
unsigned int qlen)
{
struct f_midi *midi;
int status, i;
/* sanity check */
if (in_ports > MAX_PORTS || out_ports > MAX_PORTS)
return -EINVAL;
/* allocate and initialize one new instance */
midi = kzalloc(sizeof *midi, GFP_KERNEL);
if (!midi) {
status = -ENOMEM;
goto fail;
}
for (i = 0; i < in_ports; i++) {
struct gmidi_in_port *port = kzalloc(sizeof(*port), GFP_KERNEL);
if (!port) {
status = -ENOMEM;
goto setup_fail;
}
port->midi = midi;
port->active = 0;
port->cable = i;
midi->in_port[i] = port;
}
midi->gadget = c->cdev->gadget;
tasklet_init(&midi->tasklet, f_midi_in_tasklet, (unsigned long) midi);
/* set up ALSA midi devices */
midi->in_ports = in_ports;
midi->out_ports = out_ports;
status = f_midi_register_card(midi);
if (status < 0)
goto setup_fail;
midi->func.name = "gmidi function";
midi->func.strings = midi_strings;
midi->func.bind = f_midi_bind;
midi->func.unbind = f_midi_unbind;
midi->func.set_alt = f_midi_set_alt;
midi->func.disable = f_midi_disable;
midi->id = kstrdup(id, GFP_KERNEL);
midi->index = index;
midi->buflen = buflen;
midi->qlen = qlen;
status = usb_add_function(c, &midi->func);
if (status)
goto setup_fail;
return 0;
setup_fail:
for (--i; i >= 0; i--)
kfree(midi->in_port[i]);
kfree(midi);
fail:
return status;
}

9
drivers/usb/gadget/f_ncm.c
View File

@ -13,15 +13,6 @@
* 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
*/
#include <linux/kernel.h>

9
drivers/usb/gadget/f_obex.c
View File

@ -10,15 +10,6 @@
* 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
*/
/* #define VERBOSE_DEBUG */

10
drivers/usb/gadget/f_phonet.c
View File

@ -8,16 +8,6 @@
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <linux/mm.h>

9
drivers/usb/gadget/f_rndis.c
View File

@ -11,15 +11,6 @@
* 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
*/
/* #define VERBOSE_DEBUG */

9
drivers/usb/gadget/f_sourcesink.c
View File

@ -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
*/
/* #define VERBOSE_DEBUG */

9
drivers/usb/gadget/f_subset.c
View File

@ -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
*/
#include <linux/slab.h>

1
drivers/usb/gadget/f_uvc.c
View File

@ -8,7 +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.
*
*/
#include <linux/kernel.h>

1
drivers/usb/gadget/f_uvc.h
View File

@ -8,7 +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.
*
*/
#ifndef _F_UVC_H_

252
drivers/usb/gadget/file_storage.c
View File

@ -69,8 +69,7 @@
* each LUN would be settable independently as a disk drive or a CD-ROM
* drive, but currently all LUNs have to be the same type. The CD-ROM
* emulation includes a single data track and no audio tracks; hence there
* need be only one backing file per LUN. Note also that the CD-ROM block
* length is set to 512 rather than the more common value 2048.
* need be only one backing file per LUN.
*
* Requirements are modest; only a bulk-in and a bulk-out endpoint are
* needed (an interrupt-out endpoint is also needed for CBI). The memory
@ -461,7 +460,6 @@ struct fsg_dev {
struct fsg_buffhd *next_buffhd_to_fill;
struct fsg_buffhd *next_buffhd_to_drain;
struct fsg_buffhd buffhds[FSG_NUM_BUFFERS];
int thread_wakeup_needed;
struct completion thread_notifier;
@ -488,6 +486,8 @@ struct fsg_dev {
unsigned int nluns;
struct fsg_lun *luns;
struct fsg_lun *curlun;
/* Must be the last entry */
struct fsg_buffhd buffhds[];
};
typedef void (*fsg_routine_t)(struct fsg_dev *);
@ -586,7 +586,19 @@ dev_qualifier = {
.bNumConfigurations = 1,
};
static int populate_bos(struct fsg_dev *fsg, u8 *buf)
{
memcpy(buf, &fsg_bos_desc, USB_DT_BOS_SIZE);
buf += USB_DT_BOS_SIZE;
memcpy(buf, &fsg_ext_cap_desc, USB_DT_USB_EXT_CAP_SIZE);
buf += USB_DT_USB_EXT_CAP_SIZE;
memcpy(buf, &fsg_ss_cap_desc, USB_DT_USB_SS_CAP_SIZE);
return USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE
+ USB_DT_USB_EXT_CAP_SIZE;
}
/*
* Config descriptors must agree with the code that sets configurations
@ -935,7 +947,8 @@ static int standard_setup_req(struct fsg_dev *fsg,
break;
case USB_DT_DEVICE_QUALIFIER:
VDBG(fsg, "get device qualifier\n");
if (!gadget_is_dualspeed(fsg->gadget))
if (!gadget_is_dualspeed(fsg->gadget) ||
fsg->gadget->speed == USB_SPEED_SUPER)
break;
/*
* Assume ep0 uses the same maxpacket value for both
@ -948,7 +961,8 @@ static int standard_setup_req(struct fsg_dev *fsg,
case USB_DT_OTHER_SPEED_CONFIG:
VDBG(fsg, "get other-speed config descriptor\n");
if (!gadget_is_dualspeed(fsg->gadget))
if (!gadget_is_dualspeed(fsg->gadget) ||
fsg->gadget->speed == USB_SPEED_SUPER)
break;
goto get_config;
case USB_DT_CONFIG:
@ -967,7 +981,15 @@ static int standard_setup_req(struct fsg_dev *fsg,
value = usb_gadget_get_string(&fsg_stringtab,
w_value & 0xff, req->buf);
break;
case USB_DT_BOS:
VDBG(fsg, "get bos descriptor\n");
if (gadget_is_superspeed(fsg->gadget))
value = populate_bos(fsg, req->buf);
break;
}
break;
/* One config, two speeds */
@ -1136,7 +1158,6 @@ static int do_read(struct fsg_dev *fsg)
u32 amount_left;
loff_t file_offset, file_offset_tmp;
unsigned int amount;
unsigned int partial_page;
ssize_t nread;
/* Get the starting Logical Block Address and check that it's
@ -1158,7 +1179,7 @@ static int do_read(struct fsg_dev *fsg)
curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
return -EINVAL;
}
file_offset = ((loff_t) lba) << 9;
file_offset = ((loff_t) lba) << curlun->blkbits;
/* Carry out the file reads */
amount_left = fsg->data_size_from_cmnd;
@ -1171,17 +1192,10 @@ static int do_read(struct fsg_dev *fsg)
* Try to read the remaining amount.
* But don't read more than the buffer size.
* And don't try to read past the end of the file.
* Finally, if we're not at a page boundary, don't read past
* the next page.
* If this means reading 0 then we were asked to read past
* the end of file. */
*/
amount = min((unsigned int) amount_left, mod_data.buflen);
amount = min((loff_t) amount,
curlun->file_length - file_offset);
partial_page = file_offset & (PAGE_CACHE_SIZE - 1);
if (partial_page > 0)
amount = min(amount, (unsigned int) PAGE_CACHE_SIZE -
partial_page);
/* Wait for the next buffer to become available */
bh = fsg->next_buffhd_to_fill;
@ -1196,7 +1210,7 @@ static int do_read(struct fsg_dev *fsg)
if (amount == 0) {
curlun->sense_data =
SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info = file_offset >> curlun->blkbits;
curlun->info_valid = 1;
bh->inreq->length = 0;
bh->state = BUF_STATE_FULL;
@ -1221,18 +1235,23 @@ static int do_read(struct fsg_dev *fsg)
} else if (nread < amount) {
LDBG(curlun, "partial file read: %d/%u\n",
(int) nread, amount);
nread -= (nread & 511); // Round down to a block
nread = round_down(nread, curlun->blksize);
}
file_offset += nread;
amount_left -= nread;
fsg->residue -= nread;
/* Except at the end of the transfer, nread will be
* equal to the buffer size, which is divisible by the
* bulk-in maxpacket size.
*/
bh->inreq->length = nread;
bh->state = BUF_STATE_FULL;
/* If an error occurred, report it and its position */
if (nread < amount) {
curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info = file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
@ -1262,7 +1281,6 @@ static int do_write(struct fsg_dev *fsg)
u32 amount_left_to_req, amount_left_to_write;
loff_t usb_offset, file_offset, file_offset_tmp;
unsigned int amount;
unsigned int partial_page;
ssize_t nwritten;
int rc;
@ -1303,7 +1321,7 @@ static int do_write(struct fsg_dev *fsg)
/* Carry out the file writes */
get_some_more = 1;
file_offset = usb_offset = ((loff_t) lba) << 9;
file_offset = usb_offset = ((loff_t) lba) << curlun->blkbits;
amount_left_to_req = amount_left_to_write = fsg->data_size_from_cmnd;
while (amount_left_to_write > 0) {
@ -1313,38 +1331,20 @@ static int do_write(struct fsg_dev *fsg)
if (bh->state == BUF_STATE_EMPTY && get_some_more) {
/* Figure out how much we want to get:
* Try to get the remaining amount.
* But don't get more than the buffer size.
* And don't try to go past the end of the file.
* If we're not at a page boundary,
* don't go past the next page.
* If this means getting 0, then we were asked
* to write past the end of file.
* Finally, round down to a block boundary. */
* Try to get the remaining amount,
* but not more than the buffer size.
*/
amount = min(amount_left_to_req, mod_data.buflen);
amount = min((loff_t) amount, curlun->file_length -
usb_offset);
partial_page = usb_offset & (PAGE_CACHE_SIZE - 1);
if (partial_page > 0)
amount = min(amount,
(unsigned int) PAGE_CACHE_SIZE - partial_page);
if (amount == 0) {
/* Beyond the end of the backing file? */
if (usb_offset >= curlun->file_length) {
get_some_more = 0;
curlun->sense_data =
SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
curlun->sense_data_info = usb_offset >> 9;
curlun->sense_data_info = usb_offset >> curlun->blkbits;
curlun->info_valid = 1;
continue;
}
amount -= (amount & 511);
if (amount == 0) {
/* Why were we were asked to transfer a
* partial block? */
get_some_more = 0;
continue;
}
/* Get the next buffer */
usb_offset += amount;
@ -1353,11 +1353,11 @@ static int do_write(struct fsg_dev *fsg)
if (amount_left_to_req == 0)
get_some_more = 0;
/* amount is always divisible by 512, hence by
* the bulk-out maxpacket size */
bh->outreq->length = bh->bulk_out_intended_length =
amount;
bh->outreq->short_not_ok = 1;
/* Except at the end of the transfer, amount will be
* equal to the buffer size, which is divisible by
* the bulk-out maxpacket size.
*/
set_bulk_out_req_length(fsg, bh, amount);
start_transfer(fsg, fsg->bulk_out, bh->outreq,
&bh->outreq_busy, &bh->state);
fsg->next_buffhd_to_fill = bh->next;
@ -1376,7 +1376,7 @@ static int do_write(struct fsg_dev *fsg)
/* Did something go wrong with the transfer? */
if (bh->outreq->status != 0) {
curlun->sense_data = SS_COMMUNICATION_FAILURE;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info = file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
@ -1390,6 +1390,16 @@ static int do_write(struct fsg_dev *fsg)
amount = curlun->file_length - file_offset;
}
/* Don't accept excess data. The spec doesn't say
* what to do in this case. We'll ignore the error.
*/
amount = min(amount, bh->bulk_out_intended_length);
/* Don't write a partial block */
amount = round_down(amount, curlun->blksize);
if (amount == 0)
goto empty_write;
/* Perform the write */
file_offset_tmp = file_offset;
nwritten = vfs_write(curlun->filp,
@ -1408,8 +1418,7 @@ static int do_write(struct fsg_dev *fsg)
} else if (nwritten < amount) {
LDBG(curlun, "partial file write: %d/%u\n",
(int) nwritten, amount);
nwritten -= (nwritten & 511);
// Round down to a block
nwritten = round_down(nwritten, curlun->blksize);
}
file_offset += nwritten;
amount_left_to_write -= nwritten;
@ -1418,13 +1427,14 @@ static int do_write(struct fsg_dev *fsg)
/* If an error occurred, report it and its position */
if (nwritten < amount) {
curlun->sense_data = SS_WRITE_ERROR;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info = file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
empty_write:
/* Did the host decide to stop early? */
if (bh->outreq->actual != bh->outreq->length) {
if (bh->outreq->actual < bh->bulk_out_intended_length) {
fsg->short_packet_received = 1;
break;
}
@ -1500,8 +1510,8 @@ static int do_verify(struct fsg_dev *fsg)
return -EIO; // No default reply
/* Prepare to carry out the file verify */
amount_left = verification_length << 9;
file_offset = ((loff_t) lba) << 9;
amount_left = verification_length << curlun->blkbits;
file_offset = ((loff_t) lba) << curlun->blkbits;
/* Write out all the dirty buffers before invalidating them */
fsg_lun_fsync_sub(curlun);
@ -1519,15 +1529,14 @@ static int do_verify(struct fsg_dev *fsg)
* Try to read the remaining amount, but not more than
* the buffer size.
* And don't try to read past the end of the file.
* If this means reading 0 then we were asked to read
* past the end of file. */
*/
amount = min((unsigned int) amount_left, mod_data.buflen);
amount = min((loff_t) amount,
curlun->file_length - file_offset);
if (amount == 0) {
curlun->sense_data =
SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info = file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
@ -1550,11 +1559,11 @@ static int do_verify(struct fsg_dev *fsg)
} else if (nread < amount) {
LDBG(curlun, "partial file verify: %d/%u\n",
(int) nread, amount);
nread -= (nread & 511); // Round down to a sector
nread = round_down(nread, curlun->blksize);
}
if (nread == 0) {
curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
curlun->sense_data_info = file_offset >> 9;
curlun->sense_data_info = file_offset >> curlun->blkbits;
curlun->info_valid = 1;
break;
}
@ -1668,7 +1677,7 @@ static int do_read_capacity(struct fsg_dev *fsg, struct fsg_buffhd *bh)
put_unaligned_be32(curlun->num_sectors - 1, &buf[0]);
/* Max logical block */
put_unaligned_be32(512, &buf[4]); /* Block length */
put_unaligned_be32(curlun->blksize, &buf[4]); /* Block length */
return 8;
}
@ -1890,7 +1899,7 @@ static int do_read_format_capacities(struct fsg_dev *fsg,
put_unaligned_be32(curlun->num_sectors, &buf[0]);
/* Number of blocks */
put_unaligned_be32(512, &buf[4]); /* Block length */
put_unaligned_be32(curlun->blksize, &buf[4]); /* Block length */
buf[4] = 0x02; /* Current capacity */
return 12;
}
@ -1969,7 +1978,7 @@ static int throw_away_data(struct fsg_dev *fsg)
fsg->next_buffhd_to_drain = bh->next;
/* A short packet or an error ends everything */
if (bh->outreq->actual != bh->outreq->length ||
if (bh->outreq->actual < bh->bulk_out_intended_length ||
bh->outreq->status != 0) {
raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT);
return -EINTR;
@ -1983,11 +1992,11 @@ static int throw_away_data(struct fsg_dev *fsg)
amount = min(fsg->usb_amount_left,
(u32) mod_data.buflen);
/* amount is always divisible by 512, hence by
* the bulk-out maxpacket size */
bh->outreq->length = bh->bulk_out_intended_length =
amount;
bh->outreq->short_not_ok = 1;
/* Except at the end of the transfer, amount will be
* equal to the buffer size, which is divisible by
* the bulk-out maxpacket size.
*/
set_bulk_out_req_length(fsg, bh, amount);
start_transfer(fsg, fsg->bulk_out, bh->outreq,
&bh->outreq_busy, &bh->state);
fsg->next_buffhd_to_fill = bh->next;
@ -2415,7 +2424,7 @@ static int do_scsi_command(struct fsg_dev *fsg)
case READ_6:
i = fsg->cmnd[4];
fsg->data_size_from_cmnd = (i == 0 ? 256 : i) << 9;
fsg->data_size_from_cmnd = (i == 0 ? 256 : i) << fsg->curlun->blkbits;
if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST,
(7<<1) | (1<<4), 1,
"READ(6)")) == 0)
@ -2424,7 +2433,7 @@ static int do_scsi_command(struct fsg_dev *fsg)
case READ_10:
fsg->data_size_from_cmnd =
get_unaligned_be16(&fsg->cmnd[7]) << 9;
get_unaligned_be16(&fsg->cmnd[7]) << fsg->curlun->blkbits;
if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST,
(1<<1) | (0xf<<2) | (3<<7), 1,
"READ(10)")) == 0)
@ -2433,7 +2442,7 @@ static int do_scsi_command(struct fsg_dev *fsg)
case READ_12:
fsg->data_size_from_cmnd =
get_unaligned_be32(&fsg->cmnd[6]) << 9;
get_unaligned_be32(&fsg->cmnd[6]) << fsg->curlun->blkbits;
if ((reply = check_command(fsg, 12, DATA_DIR_TO_HOST,
(1<<1) | (0xf<<2) | (0xf<<6), 1,
"READ(12)")) == 0)
@ -2519,7 +2528,7 @@ static int do_scsi_command(struct fsg_dev *fsg)
case WRITE_6:
i = fsg->cmnd[4];
fsg->data_size_from_cmnd = (i == 0 ? 256 : i) << 9;
fsg->data_size_from_cmnd = (i == 0 ? 256 : i) << fsg->curlun->blkbits;
if ((reply = check_command(fsg, 6, DATA_DIR_FROM_HOST,
(7<<1) | (1<<4), 1,
"WRITE(6)")) == 0)
@ -2528,7 +2537,7 @@ static int do_scsi_command(struct fsg_dev *fsg)
case WRITE_10:
fsg->data_size_from_cmnd =
get_unaligned_be16(&fsg->cmnd[7]) << 9;
get_unaligned_be16(&fsg->cmnd[7]) << fsg->curlun->blkbits;
if ((reply = check_command(fsg, 10, DATA_DIR_FROM_HOST,
(1<<1) | (0xf<<2) | (3<<7), 1,
"WRITE(10)")) == 0)
@ -2537,7 +2546,7 @@ static int do_scsi_command(struct fsg_dev *fsg)
case WRITE_12:
fsg->data_size_from_cmnd =
get_unaligned_be32(&fsg->cmnd[6]) << 9;
get_unaligned_be32(&fsg->cmnd[6]) << fsg->curlun->blkbits;
if ((reply = check_command(fsg, 12, DATA_DIR_FROM_HOST,
(1<<1) | (0xf<<2) | (0xf<<6), 1,
"WRITE(12)")) == 0)
@ -2666,7 +2675,6 @@ static int get_next_command(struct fsg_dev *fsg)
/* Queue a request to read a Bulk-only CBW */
set_bulk_out_req_length(fsg, bh, USB_BULK_CB_WRAP_LEN);
bh->outreq->short_not_ok = 1;
start_transfer(fsg, fsg->bulk_out, bh->outreq,
&bh->outreq_busy, &bh->state);
@ -2752,7 +2760,7 @@ static int do_set_interface(struct fsg_dev *fsg, int altsetting)
reset:
/* Deallocate the requests */
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
struct fsg_buffhd *bh = &fsg->buffhds[i];
if (bh->inreq) {
@ -2791,29 +2799,32 @@ static int do_set_interface(struct fsg_dev *fsg, int altsetting)
/* Enable the endpoints */
d = fsg_ep_desc(fsg->gadget,
&fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc);
&fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc,
&fsg_ss_bulk_in_desc);
if ((rc = enable_endpoint(fsg, fsg->bulk_in, d)) != 0)
goto reset;
fsg->bulk_in_enabled = 1;
d = fsg_ep_desc(fsg->gadget,
&fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc);
&fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc,
&fsg_ss_bulk_out_desc);
if ((rc = enable_endpoint(fsg, fsg->bulk_out, d)) != 0)
goto reset;
fsg->bulk_out_enabled = 1;
fsg->bulk_out_maxpacket = le16_to_cpu(d->wMaxPacketSize);
fsg->bulk_out_maxpacket = usb_endpoint_maxp(d);
clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
if (transport_is_cbi()) {
d = fsg_ep_desc(fsg->gadget,
&fsg_fs_intr_in_desc, &fsg_hs_intr_in_desc);
&fsg_fs_intr_in_desc, &fsg_hs_intr_in_desc,
&fsg_ss_intr_in_desc);
if ((rc = enable_endpoint(fsg, fsg->intr_in, d)) != 0)
goto reset;
fsg->intr_in_enabled = 1;
}
/* Allocate the requests */
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
struct fsg_buffhd *bh = &fsg->buffhds[i];
if ((rc = alloc_request(fsg, fsg->bulk_in, &bh->inreq)) != 0)
@ -2862,17 +2873,10 @@ static int do_set_config(struct fsg_dev *fsg, u8 new_config)
fsg->config = new_config;
if ((rc = do_set_interface(fsg, 0)) != 0)
fsg->config = 0; // Reset on errors
else {
char *speed;
switch (fsg->gadget->speed) {
case USB_SPEED_LOW: speed = "low"; break;
case USB_SPEED_FULL: speed = "full"; break;
case USB_SPEED_HIGH: speed = "high"; break;
default: speed = "?"; break;
}
INFO(fsg, "%s speed config #%d\n", speed, fsg->config);
}
else
INFO(fsg, "%s config #%d\n",
usb_speed_string(fsg->gadget->speed),
fsg->config);
}
return rc;
}
@ -2909,7 +2913,7 @@ static void handle_exception(struct fsg_dev *fsg)
/* Cancel all the pending transfers */
if (fsg->intreq_busy)
usb_ep_dequeue(fsg->intr_in, fsg->intreq);
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
bh = &fsg->buffhds[i];
if (bh->inreq_busy)
usb_ep_dequeue(fsg->bulk_in, bh->inreq);
@ -2920,7 +2924,7 @@ static void handle_exception(struct fsg_dev *fsg)
/* Wait until everything is idle */
for (;;) {
num_active = fsg->intreq_busy;
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
bh = &fsg->buffhds[i];
num_active += bh->inreq_busy + bh->outreq_busy;
}
@ -2942,7 +2946,7 @@ static void handle_exception(struct fsg_dev *fsg)
* state, and the exception. Then invoke the handler. */
spin_lock_irq(&fsg->lock);
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
bh = &fsg->buffhds[i];
bh->state = BUF_STATE_EMPTY;
}
@ -3149,6 +3153,15 @@ static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget)
DBG(fsg, "unbind\n");
clear_bit(REGISTERED, &fsg->atomic_bitflags);
/* If the thread isn't already dead, tell it to exit now */
if (fsg->state != FSG_STATE_TERMINATED) {
raise_exception(fsg, FSG_STATE_EXIT);
wait_for_completion(&fsg->thread_notifier);
/* The cleanup routine waits for this completion also */
complete(&fsg->thread_notifier);
}
/* Unregister the sysfs attribute files and the LUNs */
for (i = 0; i < fsg->nluns; ++i) {
curlun = &fsg->luns[i];
@ -3162,17 +3175,8 @@ static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget)
}
}
/* If the thread isn't already dead, tell it to exit now */
if (fsg->state != FSG_STATE_TERMINATED) {
raise_exception(fsg, FSG_STATE_EXIT);
wait_for_completion(&fsg->thread_notifier);
/* The cleanup routine waits for this completion also */
complete(&fsg->thread_notifier);
}
/* Free the data buffers */
for (i = 0; i < FSG_NUM_BUFFERS; ++i)
for (i = 0; i < fsg_num_buffers; ++i)
kfree(fsg->buffhds[i].buf);
/* Free the request and buffer for endpoint 0 */
@ -3445,6 +3449,24 @@ static int __init fsg_bind(struct usb_gadget *gadget)
fsg_fs_intr_in_desc.bEndpointAddress;
}
if (gadget_is_superspeed(gadget)) {
unsigned max_burst;
fsg_ss_function[i + FSG_SS_FUNCTION_PRE_EP_ENTRIES] = NULL;
/* Calculate bMaxBurst, we know packet size is 1024 */
max_burst = min_t(unsigned, mod_data.buflen / 1024, 15);
/* Assume endpoint addresses are the same for both speeds */
fsg_ss_bulk_in_desc.bEndpointAddress =
fsg_fs_bulk_in_desc.bEndpointAddress;
fsg_ss_bulk_in_comp_desc.bMaxBurst = max_burst;
fsg_ss_bulk_out_desc.bEndpointAddress =
fsg_fs_bulk_out_desc.bEndpointAddress;
fsg_ss_bulk_out_comp_desc.bMaxBurst = max_burst;
}
if (gadget_is_otg(gadget))
fsg_otg_desc.bmAttributes |= USB_OTG_HNP;
@ -3460,7 +3482,7 @@ static int __init fsg_bind(struct usb_gadget *gadget)
req->complete = ep0_complete;
/* Allocate the data buffers */
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
for (i = 0; i < fsg_num_buffers; ++i) {
struct fsg_buffhd *bh = &fsg->buffhds[i];
/* Allocate for the bulk-in endpoint. We assume that
@ -3471,7 +3493,7 @@ static int __init fsg_bind(struct usb_gadget *gadget)
goto out;
bh->next = bh + 1;
}
fsg->buffhds[FSG_NUM_BUFFERS - 1].next = &fsg->buffhds[0];
fsg->buffhds[fsg_num_buffers - 1].next = &fsg->buffhds[0];
/* This should reflect the actual gadget power source */
usb_gadget_set_selfpowered(gadget);
@ -3561,11 +3583,7 @@ static void fsg_resume(struct usb_gadget *gadget)
/*-------------------------------------------------------------------------*/
static struct usb_gadget_driver fsg_driver = {
#ifdef CONFIG_USB_GADGET_DUALSPEED
.speed = USB_SPEED_HIGH,
#else
.speed = USB_SPEED_FULL,
#endif
.speed = USB_SPEED_SUPER,
.function = (char *) fsg_string_product,
.unbind = fsg_unbind,
.disconnect = fsg_disconnect,
@ -3587,7 +3605,9 @@ static int __init fsg_alloc(void)
{
struct fsg_dev *fsg;
fsg = kzalloc(sizeof *fsg, GFP_KERNEL);
fsg = kzalloc(sizeof *fsg +
fsg_num_buffers * sizeof *(fsg->buffhds), GFP_KERNEL);
if (!fsg)
return -ENOMEM;
spin_lock_init(&fsg->lock);
@ -3605,6 +3625,10 @@ static int __init fsg_init(void)
int rc;
struct fsg_dev *fsg;
rc = fsg_num_buffers_validate();
if (rc != 0)
return rc;
if ((rc = fsg_alloc()) != 0)
return rc;
fsg = the_fsg;

2
drivers/usb/gadget/fsl_qe_udc.c
View File

@ -540,7 +540,7 @@ static int qe_ep_init(struct qe_udc *udc,
int reval = 0;
u16 max = 0;
max = le16_to_cpu(desc->wMaxPacketSize);
max = usb_endpoint_maxp(desc);
/* check the max package size validate for this endpoint */
/* Refer to USB2.0 spec table 9-13,

55
drivers/usb/gadget/fsl_udc_core.c
View File

@ -559,7 +559,7 @@ static int fsl_ep_enable(struct usb_ep *_ep,
if (!udc->driver || (udc->gadget.speed == USB_SPEED_UNKNOWN))
return -ESHUTDOWN;
max = le16_to_cpu(desc->wMaxPacketSize);
max = usb_endpoint_maxp(desc);
/* Disable automatic zlp generation. Driver is responsible to indicate
* explicitly through req->req.zero. This is needed to enable multi-td
@ -1715,34 +1715,31 @@ static void dtd_complete_irq(struct fsl_udc *udc)
}
}
static inline enum usb_device_speed portscx_device_speed(u32 reg)
{
switch (speed & PORTSCX_PORT_SPEED_MASK) {
case PORTSCX_PORT_SPEED_HIGH:
return USB_SPEED_HIGH;
case PORTSCX_PORT_SPEED_FULL:
return USB_SPEED_FULL;
case PORTSCX_PORT_SPEED_LOW:
return USB_SPEED_LOW;
default:
return USB_SPEED_UNKNOWN;
}
}
/* Process a port change interrupt */
static void port_change_irq(struct fsl_udc *udc)
{
u32 speed;
if (udc->bus_reset)
udc->bus_reset = 0;
/* Bus resetting is finished */
if (!(fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET)) {
if (!(fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET))
/* Get the speed */
speed = (fsl_readl(&dr_regs->portsc1)
& PORTSCX_PORT_SPEED_MASK);
switch (speed) {
case PORTSCX_PORT_SPEED_HIGH:
udc->gadget.speed = USB_SPEED_HIGH;
break;
case PORTSCX_PORT_SPEED_FULL:
udc->gadget.speed = USB_SPEED_FULL;
break;
case PORTSCX_PORT_SPEED_LOW:
udc->gadget.speed = USB_SPEED_LOW;
break;
default:
udc->gadget.speed = USB_SPEED_UNKNOWN;
break;
}
}
udc->gadget.speed =
portscx_device_speed(fsl_readl(&dr_regs->portsc1));
/* Update USB state */
if (!udc->resume_state)
@ -2167,20 +2164,8 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count,
default:
s = "None"; break;
}
s;} ), ( {
char *s;
switch (tmp_reg & PORTSCX_PORT_SPEED_UNDEF) {
case PORTSCX_PORT_SPEED_FULL:
s = "Full Speed"; break;
case PORTSCX_PORT_SPEED_LOW:
s = "Low Speed"; break;
case PORTSCX_PORT_SPEED_HIGH:
s = "High Speed"; break;
default:
s = "Undefined"; break;
}
s;
} ),
s;} ),
usb_speed_string(portscx_device_speed(tmp_reg)),
(tmp_reg & PORTSCX_PHY_LOW_POWER_SPD) ?
"Normal PHY mode" : "Low power mode",
(tmp_reg & PORTSCX_PORT_RESET) ? "In Reset" :

16
drivers/usb/gadget/fusb300_udc.c
View File

@ -8,16 +8,6 @@
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <linux/dma-mapping.h>
#include <linux/err.h>
@ -220,7 +210,7 @@ static int config_ep(struct fusb300_ep *ep,
info.type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
info.dir_in = (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ? 1 : 0;
info.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
info.maxpacket = usb_endpoint_maxp(desc);
info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
if ((info.type == USB_ENDPOINT_XFER_INT) ||
@ -1479,7 +1469,7 @@ static int __init fusb300_probe(struct platform_device *pdev)
fusb300->gadget.name = udc_name;
fusb300->reg = reg;
ret = request_irq(ires->start, fusb300_irq, IRQF_DISABLED | IRQF_SHARED,
ret = request_irq(ires->start, fusb300_irq, IRQF_SHARED,
udc_name, fusb300);
if (ret < 0) {
pr_err("request_irq error (%d)\n", ret);
@ -1487,7 +1477,7 @@ static int __init fusb300_probe(struct platform_device *pdev)
}
ret = request_irq(ires1->start, fusb300_irq,
IRQF_DISABLED | IRQF_SHARED, udc_name, fusb300);
IRQF_SHARED, udc_name, fusb300);
if (ret < 0) {
pr_err("request_irq1 error (%d)\n", ret);
goto clean_up;

10
drivers/usb/gadget/fusb300_udc.h
View File

@ -8,16 +8,6 @@
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/

9
drivers/usb/gadget/g_ffs.c
View File

@ -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
*/
#define pr_fmt(fmt) "g_ffs: " fmt

3
drivers/usb/gadget/gadget_chips.h
View File

@ -31,6 +31,7 @@
#define gadget_is_ci13xxx_msm(g) (!strcmp("ci13xxx_msm", (g)->name))
#define gadget_is_ci13xxx_pci(g) (!strcmp("ci13xxx_pci", (g)->name))
#define gadget_is_dummy(g) (!strcmp("dummy_udc", (g)->name))
#define gadget_is_dwc3(g) (!strcmp("dwc3-gadget", (g)->name))
#define gadget_is_fsl_qe(g) (!strcmp("fsl_qe_udc", (g)->name))
#define gadget_is_fsl_usb2(g) (!strcmp("fsl-usb2-udc", (g)->name))
#define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name))
@ -115,6 +116,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
return 0x30;
else if (gadget_is_net2272(gadget))
return 0x31;
else if (gadget_is_dwc3(gadget))
return 0x32;
return -ENOENT;
}

1306
drivers/usb/gadget/gmidi.c
View File

File diff suppressed because it is too large Load Diff

9
drivers/usb/gadget/hid.c
View File

@ -9,15 +9,6 @@
* 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
*/

4
drivers/usb/gadget/imx_udc.c
View File

@ -689,7 +689,7 @@ static int imx_ep_enable(struct usb_ep *usb_ep,
return -EINVAL;
}
if (imx_ep->fifosize < le16_to_cpu(desc->wMaxPacketSize)) {
if (imx_ep->fifosize < usb_endpoint_maxp(desc)) {
D_ERR(imx_usb->dev,
"<%s> bad %s maxpacket\n", __func__, usb_ep->name);
return -ERANGE;
@ -1478,7 +1478,7 @@ static int __init imx_udc_probe(struct platform_device *pdev)
for (i = 0; i < IMX_USB_NB_EP + 1; i++) {
ret = request_irq(imx_usb->usbd_int[i], intr_handler(i),
IRQF_DISABLED, driver_name, imx_usb);
0, driver_name, imx_usb);
if (ret) {
dev_err(&pdev->dev, "can't get irq %i, err %d\n",
imx_usb->usbd_int[i], ret);

5
drivers/usb/gadget/imx_udc.h
View File

@ -8,11 +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.
*/
#ifndef __LINUX_USB_GADGET_IMX_H

9
drivers/usb/gadget/inode.c
View File

@ -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
*/

147
drivers/usb/gadget/langwell_udc.c
View File

@ -5,16 +5,6 @@
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
@ -60,9 +50,6 @@ static const char driver_name[] = "langwell_udc";
static const char driver_desc[] = DRIVER_DESC;
/* controller device global variable */
static struct langwell_udc *the_controller;
/* for endpoint 0 operations */
static const struct usb_endpoint_descriptor
langwell_ep0_desc = {
@ -283,7 +270,7 @@ static int langwell_ep_enable(struct usb_ep *_ep,
if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)
return -ESHUTDOWN;
max = le16_to_cpu(desc->wMaxPacketSize);
max = usb_endpoint_maxp(desc);
/*
* disable HW zero length termination select
@ -1321,9 +1308,12 @@ static int langwell_pullup(struct usb_gadget *_gadget, int is_on)
return 0;
}
static int langwell_start(struct usb_gadget_driver *driver,
int (*bind)(struct usb_gadget *));
static int langwell_stop(struct usb_gadget_driver *driver);
static int langwell_start(struct usb_gadget *g,
struct usb_gadget_driver *driver);
static int langwell_stop(struct usb_gadget *g,
struct usb_gadget_driver *driver);
/* device controller usb_gadget_ops structure */
static const struct usb_gadget_ops langwell_ops = {
@ -1345,8 +1335,8 @@ static const struct usb_gadget_ops langwell_ops = {
/* D+ pullup, software-controlled connect/disconnect to USB host */
.pullup = langwell_pullup,
.start = langwell_start,
.stop = langwell_stop,
.udc_start = langwell_start,
.udc_stop = langwell_stop,
};
@ -1561,7 +1551,7 @@ static void stop_activity(struct langwell_udc *dev,
static ssize_t show_function(struct device *_dev,
struct device_attribute *attr, char *buf)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = dev_get_drvdata(_dev);
if (!dev->driver || !dev->driver->function
|| strlen(dev->driver->function) > PAGE_SIZE)
@ -1572,11 +1562,25 @@ static ssize_t show_function(struct device *_dev,
static DEVICE_ATTR(function, S_IRUGO, show_function, NULL);
static inline enum usb_device_speed lpm_device_speed(u32 reg)
{
switch (LPM_PSPD(reg)) {
case LPM_SPEED_HIGH:
return USB_SPEED_HIGH;
case LPM_SPEED_FULL:
return USB_SPEED_FULL;
case LPM_SPEED_LOW:
return USB_SPEED_LOW;
default:
return USB_SPEED_UNKNOWN;
}
}
/* device "langwell_udc" sysfs attribute file */
static ssize_t show_langwell_udc(struct device *_dev,
struct device_attribute *attr, char *buf)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = dev_get_drvdata(_dev);
struct langwell_request *req;
struct langwell_ep *ep = NULL;
char *next;
@ -1700,20 +1704,7 @@ static ssize_t show_langwell_udc(struct device *_dev,
"BmAttributes: %d\n\n",
LPM_PTS(tmp_reg),
(tmp_reg & LPM_STS) ? 1 : 0,
({
char *s;
switch (LPM_PSPD(tmp_reg)) {
case LPM_SPEED_FULL:
s = "Full Speed"; break;
case LPM_SPEED_LOW:
s = "Low Speed"; break;
case LPM_SPEED_HIGH:
s = "High Speed"; break;
default:
s = "Unknown Speed"; break;
}
s;
}),
usb_speed_string(lpm_device_speed(tmp_reg)),
(tmp_reg & LPM_PFSC) ? "Force Full Speed" : "Not Force",
(tmp_reg & LPM_PHCD) ? "Disabled" : "Enabled",
LPM_BA(tmp_reg));
@ -1821,7 +1812,7 @@ static DEVICE_ATTR(langwell_udc, S_IRUGO, show_langwell_udc, NULL);
static ssize_t store_remote_wakeup(struct device *_dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = dev_get_drvdata(_dev);
unsigned long flags;
ssize_t rc = count;
@ -1857,21 +1848,15 @@ static DEVICE_ATTR(remote_wakeup, S_IWUSR, NULL, store_remote_wakeup);
* the driver might get unbound.
*/
static int langwell_start(struct usb_gadget_driver *driver,
int (*bind)(struct usb_gadget *))
static int langwell_start(struct usb_gadget *g,
struct usb_gadget_driver *driver)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = gadget_to_langwell(g);
unsigned long flags;
int retval;
if (!dev)
return -ENODEV;
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
if (dev->driver)
return -EBUSY;
spin_lock_irqsave(&dev->lock, flags);
/* hook up the driver ... */
@ -1881,18 +1866,9 @@ static int langwell_start(struct usb_gadget_driver *driver,
spin_unlock_irqrestore(&dev->lock, flags);
retval = bind(&dev->gadget);
if (retval) {
dev_dbg(&dev->pdev->dev, "bind to driver %s --> %d\n",
driver->driver.name, retval);
dev->driver = NULL;
dev->gadget.dev.driver = NULL;
return retval;
}
retval = device_create_file(&dev->pdev->dev, &dev_attr_function);
if (retval)
goto err_unbind;
goto err;
dev->usb_state = USB_STATE_ATTACHED;
dev->ep0_state = WAIT_FOR_SETUP;
@ -1909,31 +1885,27 @@ static int langwell_start(struct usb_gadget_driver *driver,
dev_info(&dev->pdev->dev, "register driver: %s\n",
driver->driver.name);
dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__);
return 0;
err_unbind:
driver->unbind(&dev->gadget);
err:
dev->gadget.dev.driver = NULL;
dev->driver = NULL;
dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__);
return retval;
}
/* unregister gadget driver */
static int langwell_stop(struct usb_gadget_driver *driver)
static int langwell_stop(struct usb_gadget *g,
struct usb_gadget_driver *driver)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = gadget_to_langwell(g);
unsigned long flags;
if (!dev)
return -ENODEV;
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
if (unlikely(!driver || !driver->unbind))
return -EINVAL;
/* exit PHY low power suspend */
if (dev->pdev->device != 0x0829)
langwell_phy_low_power(dev, 0);
@ -1956,8 +1928,6 @@ static int langwell_stop(struct usb_gadget_driver *driver)
stop_activity(dev, driver);
spin_unlock_irqrestore(&dev->lock, flags);
/* unbind gadget driver */
driver->unbind(&dev->gadget);
dev->gadget.dev.driver = NULL;
dev->driver = NULL;
@ -1966,6 +1936,7 @@ static int langwell_stop(struct usb_gadget_driver *driver)
dev_info(&dev->pdev->dev, "unregistered driver '%s'\n",
driver->driver.name);
dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__);
return 0;
}
@ -2657,12 +2628,10 @@ static void handle_trans_complete(struct langwell_udc *dev)
dev_vdbg(&dev->pdev->dev, "<--- %s()\n", __func__);
}
/* port change detect interrupt handler */
static void handle_port_change(struct langwell_udc *dev)
{
u32 portsc1, devlc;
u32 speed;
dev_vdbg(&dev->pdev->dev, "---> %s()\n", __func__);
@ -2677,24 +2646,9 @@ static void handle_port_change(struct langwell_udc *dev)
/* bus reset is finished */
if (!(portsc1 & PORTS_PR)) {
/* get the speed */
speed = LPM_PSPD(devlc);
switch (speed) {
case LPM_SPEED_HIGH:
dev->gadget.speed = USB_SPEED_HIGH;
break;
case LPM_SPEED_FULL:
dev->gadget.speed = USB_SPEED_FULL;
break;
case LPM_SPEED_LOW:
dev->gadget.speed = USB_SPEED_LOW;
break;
default:
dev->gadget.speed = USB_SPEED_UNKNOWN;
break;
}
dev_vdbg(&dev->pdev->dev,
"speed = %d, dev->gadget.speed = %d\n",
speed, dev->gadget.speed);
dev->gadget.speed = lpm_device_speed(devlc);
dev_vdbg(&dev->pdev->dev, "dev->gadget.speed = %d\n",
dev->gadget.speed);
}
/* LPM L0 to L1 */
@ -2999,7 +2953,7 @@ static irqreturn_t langwell_irq(int irq, void *_dev)
/* release device structure */
static void gadget_release(struct device *_dev)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = dev_get_drvdata(_dev);
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
@ -3057,7 +3011,7 @@ static void sram_deinit(struct langwell_udc *dev)
/* tear down the binding between this driver and the pci device */
static void langwell_udc_remove(struct pci_dev *pdev)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = pci_get_drvdata(pdev);
DECLARE_COMPLETION(done);
@ -3124,8 +3078,6 @@ static void langwell_udc_remove(struct pci_dev *pdev)
/* free dev, wait for the release() finished */
wait_for_completion(&done);
the_controller = NULL;
}
@ -3144,11 +3096,6 @@ static int langwell_udc_probe(struct pci_dev *pdev,
size_t size;
int retval;
if (the_controller) {
dev_warn(&pdev->dev, "ignoring\n");
return -EBUSY;
}
/* alloc, and start init */
dev = kzalloc(sizeof *dev, GFP_KERNEL);
if (dev == NULL) {
@ -3368,8 +3315,6 @@ static int langwell_udc_probe(struct pci_dev *pdev,
"After langwell_udc_probe(), print all registers:\n");
print_all_registers(dev);
the_controller = dev;
retval = device_register(&dev->gadget.dev);
if (retval)
goto error;
@ -3404,7 +3349,7 @@ static int langwell_udc_probe(struct pci_dev *pdev,
/* device controller suspend */
static int langwell_udc_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = pci_get_drvdata(pdev);
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
@ -3452,7 +3397,7 @@ static int langwell_udc_suspend(struct pci_dev *pdev, pm_message_t state)
/* device controller resume */
static int langwell_udc_resume(struct pci_dev *pdev)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = pci_get_drvdata(pdev);
size_t size;
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
@ -3534,7 +3479,7 @@ static int langwell_udc_resume(struct pci_dev *pdev)
/* pci driver shutdown */
static void langwell_udc_shutdown(struct pci_dev *pdev)
{
struct langwell_udc *dev = the_controller;
struct langwell_udc *dev = pci_get_drvdata(pdev);
u32 usbmode;
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);

12
drivers/usb/gadget/langwell_udc.h
View File

@ -5,16 +5,6 @@
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <linux/usb/langwell_udc.h>
@ -231,3 +221,5 @@ struct langwell_udc {
u16 dev_status;
};
#define gadget_to_langwell(g) container_of((g), struct langwell_udc, gadget)

16
drivers/usb/gadget/m66592-udc.c
View File

@ -8,16 +8,6 @@
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <linux/module.h>
@ -370,7 +360,7 @@ static void m66592_ep_setting(struct m66592 *m66592, struct m66592_ep *ep,
ep->pipectr = get_pipectr_addr(pipenum);
ep->pipenum = pipenum;
ep->ep.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
ep->ep.maxpacket = usb_endpoint_maxp(desc);
m66592->pipenum2ep[pipenum] = ep;
m66592->epaddr2ep[desc->bEndpointAddress&USB_ENDPOINT_NUMBER_MASK] = ep;
INIT_LIST_HEAD(&ep->queue);
@ -447,7 +437,7 @@ static int alloc_pipe_config(struct m66592_ep *ep,
ep->type = info.type;
info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
info.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
info.maxpacket = usb_endpoint_maxp(desc);
info.interval = desc->bInterval;
if (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
info.dir_in = 1;
@ -1674,7 +1664,7 @@ static int __init m66592_probe(struct platform_device *pdev)
m66592->timer.data = (unsigned long)m66592;
m66592->reg = reg;
ret = request_irq(ires->start, m66592_irq, IRQF_DISABLED | IRQF_SHARED,
ret = request_irq(ires->start, m66592_irq, IRQF_SHARED,
udc_name, m66592);
if (ret < 0) {
pr_err("request_irq error (%d)\n", ret);

10
drivers/usb/gadget/m66592-udc.h
View File

@ -8,16 +8,6 @@
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef __M66592_UDC_H__

11
drivers/usb/gadget/mass_storage.c
View File

@ -10,15 +10,6 @@
* 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
*/
@ -169,7 +160,7 @@ static struct usb_composite_driver msg_driver = {
.name = "g_mass_storage",
.dev = &msg_device_desc,
.iProduct = DRIVER_DESC,
.max_speed = USB_SPEED_HIGH,
.max_speed = USB_SPEED_SUPER,
.needs_serial = 1,
};

9
drivers/usb/gadget/multi.c
View File

@ -10,15 +10,6 @@
* 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
*/

26
drivers/usb/gadget/mv_udc.h
View File

@ -1,3 +1,11 @@
/*
* Copyright (C) 2011 Marvell International Ltd. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __MV_UDC_H
#define __MV_UDC_H
@ -194,14 +202,25 @@ struct mv_udc {
unsigned int ep0_dir;
unsigned int dev_addr;
unsigned int test_mode;
int errors;
unsigned softconnect:1,
vbus_active:1,
remote_wakeup:1,
softconnected:1,
force_fs:1;
struct clk *clk;
force_fs:1,
clock_gating:1,
active:1;
struct work_struct vbus_work;
struct workqueue_struct *qwork;
struct mv_usb_platform_data *pdata;
/* some SOC has mutiple clock sources for USB*/
unsigned int clknum;
struct clk *clk[0];
};
/* endpoint data structure */
@ -225,6 +244,7 @@ struct mv_req {
struct mv_dtd *dtd, *head, *tail;
struct mv_ep *ep;
struct list_head queue;
unsigned int test_mode;
unsigned dtd_count;
unsigned mapped:1;
};
@ -289,6 +309,4 @@ struct mv_dtd {
struct mv_dtd *next_dtd_virt;
};
extern int mv_udc_phy_init(unsigned int base);
#endif

568
drivers/usb/gadget/mv_udc_core.c
View File

@ -1,3 +1,14 @@
/*
* Copyright (C) 2011 Marvell International Ltd. All rights reserved.
* Author: Chao Xie <chao.xie@marvell.com>
* Neil Zhang <zhangwm@marvell.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
@ -22,6 +33,7 @@
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/platform_data/mv_usb.h>
#include <asm/system.h>
#include <asm/unaligned.h>
@ -45,6 +57,8 @@
#define LOOPS_USEC (1 << LOOPS_USEC_SHIFT)
#define LOOPS(timeout) ((timeout) >> LOOPS_USEC_SHIFT)
static DECLARE_COMPLETION(release_done);
static const char driver_name[] = "mv_udc";
static const char driver_desc[] = DRIVER_DESC;
@ -53,6 +67,7 @@ static struct mv_udc *the_controller;
int mv_usb_otgsc;
static void nuke(struct mv_ep *ep, int status);
static void stop_activity(struct mv_udc *udc, struct usb_gadget_driver *driver);
/* for endpoint 0 operations */
static const struct usb_endpoint_descriptor mv_ep0_desc = {
@ -82,14 +97,16 @@ static void ep0_reset(struct mv_udc *udc)
(EP0_MAX_PKT_SIZE << EP_QUEUE_HEAD_MAX_PKT_LEN_POS)
| EP_QUEUE_HEAD_IOS;
ep->dqh->next_dtd_ptr = EP_QUEUE_HEAD_NEXT_TERMINATE;
epctrlx = readl(&udc->op_regs->epctrlx[0]);
if (i) { /* TX */
epctrlx |= EPCTRL_TX_ENABLE | EPCTRL_TX_DATA_TOGGLE_RST
epctrlx |= EPCTRL_TX_ENABLE
| (USB_ENDPOINT_XFER_CONTROL
<< EPCTRL_TX_EP_TYPE_SHIFT);
} else { /* RX */
epctrlx |= EPCTRL_RX_ENABLE | EPCTRL_RX_DATA_TOGGLE_RST
epctrlx |= EPCTRL_RX_ENABLE
| (USB_ENDPOINT_XFER_CONTROL
<< EPCTRL_RX_EP_TYPE_SHIFT);
}
@ -122,6 +139,7 @@ static int process_ep_req(struct mv_udc *udc, int index,
int i, direction;
int retval = 0;
u32 errors;
u32 bit_pos;
curr_dqh = &udc->ep_dqh[index];
direction = index % 2;
@ -139,10 +157,20 @@ static int process_ep_req(struct mv_udc *udc, int index,
errors = curr_dtd->size_ioc_sts & DTD_ERROR_MASK;
if (!errors) {
remaining_length +=
remaining_length =
(curr_dtd->size_ioc_sts & DTD_PACKET_SIZE)
>> DTD_LENGTH_BIT_POS;
actual -= remaining_length;
if (remaining_length) {
if (direction) {
dev_dbg(&udc->dev->dev,
"TX dTD remains data\n");
retval = -EPROTO;
break;
} else
break;
}
} else {
dev_info(&udc->dev->dev,
"complete_tr error: ep=%d %s: error = 0x%x\n",
@ -164,6 +192,20 @@ static int process_ep_req(struct mv_udc *udc, int index,
if (retval)
return retval;
if (direction == EP_DIR_OUT)
bit_pos = 1 << curr_req->ep->ep_num;
else
bit_pos = 1 << (16 + curr_req->ep->ep_num);
while ((curr_dqh->curr_dtd_ptr == curr_dtd->td_dma)) {
if (curr_dtd->dtd_next == EP_QUEUE_HEAD_NEXT_TERMINATE) {
while (readl(&udc->op_regs->epstatus) & bit_pos)
udelay(1);
break;
}
udelay(1);
}
curr_req->req.actual = actual;
return 0;
@ -481,6 +523,7 @@ static int mv_ep_enable(struct usb_ep *_ep,
u16 max = 0;
u32 bit_pos, epctrlx, direction;
unsigned char zlt = 0, ios = 0, mult = 0;
unsigned long flags;
ep = container_of(_ep, struct mv_ep, ep);
udc = ep->udc;
@ -493,7 +536,7 @@ static int mv_ep_enable(struct usb_ep *_ep,
return -ESHUTDOWN;
direction = ep_dir(ep);
max = le16_to_cpu(desc->wMaxPacketSize);
max = usb_endpoint_maxp(desc);
/*
* disable HW zero length termination select
@ -501,9 +544,6 @@ static int mv_ep_enable(struct usb_ep *_ep,
*/
zlt = 1;
/* Get the endpoint queue head address */
dqh = (struct mv_dqh *)ep->dqh;
bit_pos = 1 << ((direction == EP_DIR_OUT ? 0 : 16) + ep->ep_num);
/* Check if the Endpoint is Primed */
@ -532,7 +572,7 @@ static int mv_ep_enable(struct usb_ep *_ep,
case USB_ENDPOINT_XFER_ISOC:
/* Calculate transactions needed for high bandwidth iso */
mult = (unsigned char)(1 + ((max >> 11) & 0x03));
max = max & 0x8ff; /* bit 0~10 */
max = max & 0x7ff; /* bit 0~10 */
/* 3 transactions at most */
if (mult > 3)
goto en_done;
@ -540,6 +580,10 @@ static int mv_ep_enable(struct usb_ep *_ep,
default:
goto en_done;
}
spin_lock_irqsave(&udc->lock, flags);
/* Get the endpoint queue head address */
dqh = ep->dqh;
dqh->max_packet_length = (max << EP_QUEUE_HEAD_MAX_PKT_LEN_POS)
| (mult << EP_QUEUE_HEAD_MULT_POS)
| (zlt ? EP_QUEUE_HEAD_ZLT_SEL : 0)
@ -572,18 +616,20 @@ static int mv_ep_enable(struct usb_ep *_ep,
*/
epctrlx = readl(&udc->op_regs->epctrlx[ep->ep_num]);
if ((epctrlx & EPCTRL_RX_ENABLE) == 0) {
epctrlx |= ((desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
epctrlx |= (USB_ENDPOINT_XFER_BULK
<< EPCTRL_RX_EP_TYPE_SHIFT);
writel(epctrlx, &udc->op_regs->epctrlx[ep->ep_num]);
}
epctrlx = readl(&udc->op_regs->epctrlx[ep->ep_num]);
if ((epctrlx & EPCTRL_TX_ENABLE) == 0) {
epctrlx |= ((desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
epctrlx |= (USB_ENDPOINT_XFER_BULK
<< EPCTRL_TX_EP_TYPE_SHIFT);
writel(epctrlx, &udc->op_regs->epctrlx[ep->ep_num]);
}
spin_unlock_irqrestore(&udc->lock, flags);
return 0;
en_done:
return -EINVAL;
@ -595,6 +641,7 @@ static int mv_ep_disable(struct usb_ep *_ep)
struct mv_ep *ep;
struct mv_dqh *dqh;
u32 bit_pos, epctrlx, direction;
unsigned long flags;
ep = container_of(_ep, struct mv_ep, ep);
if ((_ep == NULL) || !ep->desc)
@ -605,6 +652,8 @@ static int mv_ep_disable(struct usb_ep *_ep)
/* Get the endpoint queue head address */
dqh = ep->dqh;
spin_lock_irqsave(&udc->lock, flags);
direction = ep_dir(ep);
bit_pos = 1 << ((direction == EP_DIR_OUT ? 0 : 16) + ep->ep_num);
@ -623,6 +672,9 @@ static int mv_ep_disable(struct usb_ep *_ep)
ep->desc = NULL;
ep->stopped = 1;
spin_unlock_irqrestore(&udc->lock, flags);
return 0;
}
@ -655,37 +707,28 @@ static void mv_ep_fifo_flush(struct usb_ep *_ep)
{
struct mv_udc *udc;
u32 bit_pos, direction;
struct mv_ep *ep = container_of(_ep, struct mv_ep, ep);
struct mv_ep *ep;
unsigned int loops;
if (!_ep)
return;
ep = container_of(_ep, struct mv_ep, ep);
if (!ep->desc)
return;
udc = ep->udc;
direction = ep_dir(ep);
bit_pos = 1 << ((direction == EP_DIR_OUT ? 0 : 16) + ep->ep_num);
/*
* Flushing will halt the pipe
* Write 1 to the Flush register
*/
writel(bit_pos, &udc->op_regs->epflush);
/* Wait until flushing completed */
loops = LOOPS(FLUSH_TIMEOUT);
while (readl(&udc->op_regs->epflush) & bit_pos) {
/*
* ENDPTFLUSH bit should be cleared to indicate this
* operation is complete
*/
if (loops == 0) {
dev_err(&udc->dev->dev,
"TIMEOUT for ENDPTFLUSH=0x%x, bit_pos=0x%x\n",
(unsigned)readl(&udc->op_regs->epflush),
(unsigned)bit_pos);
return;
}
loops--;
udelay(LOOPS_USEC);
}
if (ep->ep_num == 0)
bit_pos = (1 << 16) | 1;
else if (direction == EP_DIR_OUT)
bit_pos = 1 << ep->ep_num;
else
bit_pos = 1 << (16 + ep->ep_num);
loops = LOOPS(EPSTATUS_TIMEOUT);
while (readl(&udc->op_regs->epstatus) & bit_pos) {
do {
unsigned int inter_loops;
if (loops == 0) {
@ -700,7 +743,7 @@ static void mv_ep_fifo_flush(struct usb_ep *_ep)
/* Wait until flushing completed */
inter_loops = LOOPS(FLUSH_TIMEOUT);
while (readl(&udc->op_regs->epflush) & bit_pos) {
while (readl(&udc->op_regs->epflush)) {
/*
* ENDPTFLUSH bit should be cleared to indicate this
* operation is complete
@ -717,7 +760,7 @@ static void mv_ep_fifo_flush(struct usb_ep *_ep)
udelay(LOOPS_USEC);
}
loops--;
}
} while (readl(&udc->op_regs->epstatus) & bit_pos);
}
/* queues (submits) an I/O request to an endpoint */
@ -987,6 +1030,22 @@ static struct usb_ep_ops mv_ep_ops = {
.fifo_flush = mv_ep_fifo_flush, /* flush fifo */
};
static void udc_clock_enable(struct mv_udc *udc)
{
unsigned int i;
for (i = 0; i < udc->clknum; i++)
clk_enable(udc->clk[i]);
}
static void udc_clock_disable(struct mv_udc *udc)
{
unsigned int i;
for (i = 0; i < udc->clknum; i++)
clk_disable(udc->clk[i]);
}
static void udc_stop(struct mv_udc *udc)
{
u32 tmp;
@ -1075,6 +1134,40 @@ static int udc_reset(struct mv_udc *udc)
return 0;
}
static int mv_udc_enable(struct mv_udc *udc)
{
int retval;
if (udc->clock_gating == 0 || udc->active)
return 0;
dev_dbg(&udc->dev->dev, "enable udc\n");
udc_clock_enable(udc);
if (udc->pdata->phy_init) {
retval = udc->pdata->phy_init(udc->phy_regs);
if (retval) {
dev_err(&udc->dev->dev,
"init phy error %d\n", retval);
udc_clock_disable(udc);
return retval;
}
}
udc->active = 1;
return 0;
}
static void mv_udc_disable(struct mv_udc *udc)
{
if (udc->clock_gating && udc->active) {
dev_dbg(&udc->dev->dev, "disable udc\n");
if (udc->pdata->phy_deinit)
udc->pdata->phy_deinit(udc->phy_regs);
udc_clock_disable(udc);
udc->active = 0;
}
}
static int mv_udc_get_frame(struct usb_gadget *gadget)
{
struct mv_udc *udc;
@ -1110,22 +1203,68 @@ static int mv_udc_wakeup(struct usb_gadget *gadget)
return 0;
}
static int mv_udc_pullup(struct usb_gadget *gadget, int is_on)
static int mv_udc_vbus_session(struct usb_gadget *gadget, int is_active)
{
struct mv_udc *udc;
unsigned long flags;
int retval = 0;
udc = container_of(gadget, struct mv_udc, gadget);
spin_lock_irqsave(&udc->lock, flags);
udc->softconnect = (is_on != 0);
if (udc->driver && udc->softconnect)
udc_start(udc);
else
dev_dbg(&udc->dev->dev, "%s: softconnect %d, vbus_active %d\n",
__func__, udc->softconnect, udc->vbus_active);
udc->vbus_active = (is_active != 0);
if (udc->driver && udc->softconnect && udc->vbus_active) {
retval = mv_udc_enable(udc);
if (retval == 0) {
/* Clock is disabled, need re-init registers */
udc_reset(udc);
ep0_reset(udc);
udc_start(udc);
}
} else if (udc->driver && udc->softconnect) {
/* stop all the transfer in queue*/
stop_activity(udc, udc->driver);
udc_stop(udc);
mv_udc_disable(udc);
}
spin_unlock_irqrestore(&udc->lock, flags);
return 0;
return retval;
}
static int mv_udc_pullup(struct usb_gadget *gadget, int is_on)
{
struct mv_udc *udc;
unsigned long flags;
int retval = 0;
udc = container_of(gadget, struct mv_udc, gadget);
spin_lock_irqsave(&udc->lock, flags);
dev_dbg(&udc->dev->dev, "%s: softconnect %d, vbus_active %d\n",
__func__, udc->softconnect, udc->vbus_active);
udc->softconnect = (is_on != 0);
if (udc->driver && udc->softconnect && udc->vbus_active) {
retval = mv_udc_enable(udc);
if (retval == 0) {
/* Clock is disabled, need re-init registers */
udc_reset(udc);
ep0_reset(udc);
udc_start(udc);
}
} else if (udc->driver && udc->vbus_active) {
/* stop all the transfer in queue*/
stop_activity(udc, udc->driver);
udc_stop(udc);
mv_udc_disable(udc);
}
spin_unlock_irqrestore(&udc->lock, flags);
return retval;
}
static int mv_udc_start(struct usb_gadget_driver *driver,
@ -1140,17 +1279,15 @@ static const struct usb_gadget_ops mv_ops = {
/* tries to wake up the host connected to this gadget */
.wakeup = mv_udc_wakeup,
/* notify controller that VBUS is powered or not */
.vbus_session = mv_udc_vbus_session,
/* D+ pullup, software-controlled connect/disconnect to USB host */
.pullup = mv_udc_pullup,
.start = mv_udc_start,
.stop = mv_udc_stop,
};
static void mv_udc_testmode(struct mv_udc *udc, u16 index, bool enter)
{
dev_info(&udc->dev->dev, "Test Mode is not support yet\n");
}
static int eps_init(struct mv_udc *udc)
{
struct mv_ep *ep;
@ -1257,7 +1394,7 @@ static int mv_udc_start(struct usb_gadget_driver *driver,
udc->usb_state = USB_STATE_ATTACHED;
udc->ep0_state = WAIT_FOR_SETUP;
udc->ep0_dir = USB_DIR_OUT;
udc->ep0_dir = EP_DIR_OUT;
spin_unlock_irqrestore(&udc->lock, flags);
@ -1269,9 +1406,13 @@ static int mv_udc_start(struct usb_gadget_driver *driver,
udc->gadget.dev.driver = NULL;
return retval;
}
udc_reset(udc);
ep0_reset(udc);
udc_start(udc);
/* pullup is always on */
mv_udc_pullup(&udc->gadget, 1);
/* When boot with cable attached, there will be no vbus irq occurred */
if (udc->qwork)
queue_work(udc->qwork, &udc->vbus_work);
return 0;
}
@ -1284,13 +1425,16 @@ static int mv_udc_stop(struct usb_gadget_driver *driver)
if (!udc)
return -ENODEV;
udc_stop(udc);
spin_lock_irqsave(&udc->lock, flags);
mv_udc_enable(udc);
udc_stop(udc);
/* stop all usb activities */
udc->gadget.speed = USB_SPEED_UNKNOWN;
stop_activity(udc, driver);
mv_udc_disable(udc);
spin_unlock_irqrestore(&udc->lock, flags);
/* unbind gadget driver */
@ -1301,6 +1445,31 @@ static int mv_udc_stop(struct usb_gadget_driver *driver)
return 0;
}
static void mv_set_ptc(struct mv_udc *udc, u32 mode)
{
u32 portsc;
portsc = readl(&udc->op_regs->portsc[0]);
portsc |= mode << 16;
writel(portsc, &udc->op_regs->portsc[0]);
}
static void prime_status_complete(struct usb_ep *ep, struct usb_request *_req)
{
struct mv_udc *udc = the_controller;
struct mv_req *req = container_of(_req, struct mv_req, req);
unsigned long flags;
dev_info(&udc->dev->dev, "switch to test mode %d\n", req->test_mode);
spin_lock_irqsave(&udc->lock, flags);
if (req->test_mode) {
mv_set_ptc(udc, req->test_mode);
req->test_mode = 0;
}
spin_unlock_irqrestore(&udc->lock, flags);
}
static int
udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty)
{
@ -1310,6 +1479,7 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty)
ep = &udc->eps[0];
udc->ep0_dir = direction;
udc->ep0_state = WAIT_FOR_OUT_STATUS;
req = udc->status_req;
@ -1323,9 +1493,21 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty)
req->ep = ep;
req->req.status = -EINPROGRESS;
req->req.actual = 0;
req->req.complete = NULL;
if (udc->test_mode) {
req->req.complete = prime_status_complete;
req->test_mode = udc->test_mode;
udc->test_mode = 0;
} else
req->req.complete = NULL;
req->dtd_count = 0;
if (req->req.dma == DMA_ADDR_INVALID) {
req->req.dma = dma_map_single(ep->udc->gadget.dev.parent,
req->req.buf, req->req.length,
ep_dir(ep) ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
req->mapped = 1;
}
/* prime the data phase */
if (!req_to_dtd(req))
retval = queue_dtd(ep, req);
@ -1346,6 +1528,17 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty)
return retval;
}
static void mv_udc_testmode(struct mv_udc *udc, u16 index)
{
if (index <= TEST_FORCE_EN) {
udc->test_mode = index;
if (udc_prime_status(udc, EP_DIR_IN, 0, true))
ep0_stall(udc);
} else
dev_err(&udc->dev->dev,
"This test mode(%d) is not supported\n", index);
}
static void ch9setaddress(struct mv_udc *udc, struct usb_ctrlrequest *setup)
{
udc->dev_addr = (u8)setup->wValue;
@ -1360,7 +1553,7 @@ static void ch9setaddress(struct mv_udc *udc, struct usb_ctrlrequest *setup)
static void ch9getstatus(struct mv_udc *udc, u8 ep_num,
struct usb_ctrlrequest *setup)
{
u16 status;
u16 status = 0;
int retval;
if ((setup->bRequestType & (USB_DIR_IN | USB_TYPE_MASK))
@ -1388,6 +1581,8 @@ static void ch9getstatus(struct mv_udc *udc, u8 ep_num,
retval = udc_prime_status(udc, EP_DIR_IN, status, false);
if (retval)
ep0_stall(udc);
else
udc->ep0_state = DATA_STATE_XMIT;
}
static void ch9clearfeature(struct mv_udc *udc, struct usb_ctrlrequest *setup)
@ -1402,9 +1597,6 @@ static void ch9clearfeature(struct mv_udc *udc, struct usb_ctrlrequest *setup)
case USB_DEVICE_REMOTE_WAKEUP:
udc->remote_wakeup = 0;
break;
case USB_DEVICE_TEST_MODE:
mv_udc_testmode(udc, 0, false);
break;
default:
goto out;
}
@ -1433,8 +1625,6 @@ static void ch9clearfeature(struct mv_udc *udc, struct usb_ctrlrequest *setup)
if (udc_prime_status(udc, EP_DIR_IN, 0, true))
ep0_stall(udc);
else
udc->ep0_state = DATA_STATE_XMIT;
out:
return;
}
@ -1452,16 +1642,16 @@ static void ch9setfeature(struct mv_udc *udc, struct usb_ctrlrequest *setup)
break;
case USB_DEVICE_TEST_MODE:
if (setup->wIndex & 0xFF
&& udc->gadget.speed != USB_SPEED_HIGH)
goto out;
if (udc->usb_state == USB_STATE_CONFIGURED
|| udc->usb_state == USB_STATE_ADDRESS
|| udc->usb_state == USB_STATE_DEFAULT)
mv_udc_testmode(udc,
setup->wIndex & 0xFF00, true);
else
goto out;
break;
|| udc->gadget.speed != USB_SPEED_HIGH)
ep0_stall(udc);
if (udc->usb_state != USB_STATE_CONFIGURED
&& udc->usb_state != USB_STATE_ADDRESS
&& udc->usb_state != USB_STATE_DEFAULT)
ep0_stall(udc);
mv_udc_testmode(udc, (setup->wIndex >> 8));
goto out;
default:
goto out;
}
@ -1599,8 +1789,7 @@ static void get_setup_data(struct mv_udc *udc, u8 ep_num, u8 *buffer_ptr)
dqh = &udc->ep_dqh[ep_num * 2 + EP_DIR_OUT];
/* Clear bit in ENDPTSETUPSTAT */
temp = readl(&udc->op_regs->epsetupstat);
writel(temp | (1 << ep_num), &udc->op_regs->epsetupstat);
writel((1 << ep_num), &udc->op_regs->epsetupstat);
/* while a hazard exists when setup package arrives */
do {
@ -1871,23 +2060,57 @@ static irqreturn_t mv_udc_irq(int irq, void *dev)
return IRQ_HANDLED;
}
static irqreturn_t mv_udc_vbus_irq(int irq, void *dev)
{
struct mv_udc *udc = (struct mv_udc *)dev;
/* polling VBUS and init phy may cause too much time*/
if (udc->qwork)
queue_work(udc->qwork, &udc->vbus_work);
return IRQ_HANDLED;
}
static void mv_udc_vbus_work(struct work_struct *work)
{
struct mv_udc *udc;
unsigned int vbus;
udc = container_of(work, struct mv_udc, vbus_work);
if (!udc->pdata->vbus)
return;
vbus = udc->pdata->vbus->poll();
dev_info(&udc->dev->dev, "vbus is %d\n", vbus);
if (vbus == VBUS_HIGH)
mv_udc_vbus_session(&udc->gadget, 1);
else if (vbus == VBUS_LOW)
mv_udc_vbus_session(&udc->gadget, 0);
}
/* release device structure */
static void gadget_release(struct device *_dev)
{
struct mv_udc *udc = the_controller;
complete(udc->done);
kfree(udc);
}
static int mv_udc_remove(struct platform_device *dev)
static int __devexit mv_udc_remove(struct platform_device *dev)
{
struct mv_udc *udc = the_controller;
DECLARE_COMPLETION(done);
int clk_i;
usb_del_gadget_udc(&udc->gadget);
udc->done = &done;
if (udc->qwork) {
flush_workqueue(udc->qwork);
destroy_workqueue(udc->qwork);
}
if (udc->pdata && udc->pdata->vbus && udc->clock_gating)
free_irq(udc->pdata->vbus->irq, &dev->dev);
/* free memory allocated in probe */
if (udc->dtd_pool)
@ -1902,6 +2125,8 @@ static int mv_udc_remove(struct platform_device *dev)
if (udc->irq)
free_irq(udc->irq, &dev->dev);
mv_udc_disable(udc);
if (udc->cap_regs)
iounmap(udc->cap_regs);
udc->cap_regs = NULL;
@ -1915,45 +2140,62 @@ static int mv_udc_remove(struct platform_device *dev)
kfree(udc->status_req);
}
for (clk_i = 0; clk_i <= udc->clknum; clk_i++)
clk_put(udc->clk[clk_i]);
device_unregister(&udc->gadget.dev);
/* free dev, wait for the release() finished */
wait_for_completion(&done);
wait_for_completion(udc->done);
kfree(udc);
the_controller = NULL;
return 0;
}
int mv_udc_probe(struct platform_device *dev)
static int __devinit mv_udc_probe(struct platform_device *dev)
{
struct mv_usb_platform_data *pdata = dev->dev.platform_data;
struct mv_udc *udc;
int retval = 0;
int clk_i = 0;
struct resource *r;
size_t size;
udc = kzalloc(sizeof *udc, GFP_KERNEL);
if (udc == NULL) {
dev_err(&dev->dev, "failed to allocate memory for udc\n");
retval = -ENOMEM;
goto error;
if (pdata == NULL) {
dev_err(&dev->dev, "missing platform_data\n");
return -ENODEV;
}
size = sizeof(*udc) + sizeof(struct clk *) * pdata->clknum;
udc = kzalloc(size, GFP_KERNEL);
if (udc == NULL) {
dev_err(&dev->dev, "failed to allocate memory for udc\n");
return -ENOMEM;
}
the_controller = udc;
udc->done = &release_done;
udc->pdata = dev->dev.platform_data;
spin_lock_init(&udc->lock);
udc->dev = dev;
udc->clk = clk_get(&dev->dev, "U2OCLK");
if (IS_ERR(udc->clk)) {
retval = PTR_ERR(udc->clk);
goto error;
udc->clknum = pdata->clknum;
for (clk_i = 0; clk_i < udc->clknum; clk_i++) {
udc->clk[clk_i] = clk_get(&dev->dev, pdata->clkname[clk_i]);
if (IS_ERR(udc->clk[clk_i])) {
retval = PTR_ERR(udc->clk[clk_i]);
goto err_put_clk;
}
}
r = platform_get_resource_byname(udc->dev, IORESOURCE_MEM, "u2o");
r = platform_get_resource_byname(udc->dev, IORESOURCE_MEM, "capregs");
if (r == NULL) {
dev_err(&dev->dev, "no I/O memory resource defined\n");
retval = -ENODEV;
goto error;
goto err_put_clk;
}
udc->cap_regs = (struct mv_cap_regs __iomem *)
@ -1961,29 +2203,31 @@ int mv_udc_probe(struct platform_device *dev)
if (udc->cap_regs == NULL) {
dev_err(&dev->dev, "failed to map I/O memory\n");
retval = -EBUSY;
goto error;
goto err_put_clk;
}
r = platform_get_resource_byname(udc->dev, IORESOURCE_MEM, "u2ophy");
r = platform_get_resource_byname(udc->dev, IORESOURCE_MEM, "phyregs");
if (r == NULL) {
dev_err(&dev->dev, "no phy I/O memory resource defined\n");
retval = -ENODEV;
goto error;
goto err_iounmap_capreg;
}
udc->phy_regs = (unsigned int)ioremap(r->start, resource_size(r));
if (udc->phy_regs == 0) {
dev_err(&dev->dev, "failed to map phy I/O memory\n");
retval = -EBUSY;
goto error;
goto err_iounmap_capreg;
}
/* we will acces controller register, so enable the clk */
clk_enable(udc->clk);
retval = mv_udc_phy_init(udc->phy_regs);
if (retval) {
dev_err(&dev->dev, "phy initialization error %d\n", retval);
goto error;
udc_clock_enable(udc);
if (pdata->phy_init) {
retval = pdata->phy_init(udc->phy_regs);
if (retval) {
dev_err(&dev->dev, "phy init error %d\n", retval);
goto err_iounmap_phyreg;
}
}
udc->op_regs = (struct mv_op_regs __iomem *)((u32)udc->cap_regs
@ -1991,6 +2235,13 @@ int mv_udc_probe(struct platform_device *dev)
& CAPLENGTH_MASK));
udc->max_eps = readl(&udc->cap_regs->dccparams) & DCCPARAMS_DEN_MASK;
/*
* some platform will use usb to download image, it may not disconnect
* usb gadget before loading kernel. So first stop udc here.
*/
udc_stop(udc);
writel(0xFFFFFFFF, &udc->op_regs->usbsts);
size = udc->max_eps * sizeof(struct mv_dqh) *2;
size = (size + DQH_ALIGNMENT - 1) & ~(DQH_ALIGNMENT - 1);
udc->ep_dqh = dma_alloc_coherent(&dev->dev, size,
@ -1999,7 +2250,7 @@ int mv_udc_probe(struct platform_device *dev)
if (udc->ep_dqh == NULL) {
dev_err(&dev->dev, "allocate dQH memory failed\n");
retval = -ENOMEM;
goto error;
goto err_disable_clock;
}
udc->ep_dqh_size = size;
@ -2012,7 +2263,7 @@ int mv_udc_probe(struct platform_device *dev)
if (!udc->dtd_pool) {
retval = -ENOMEM;
goto error;
goto err_free_dma;
}
size = udc->max_eps * sizeof(struct mv_ep) *2;
@ -2020,7 +2271,7 @@ int mv_udc_probe(struct platform_device *dev)
if (udc->eps == NULL) {
dev_err(&dev->dev, "allocate ep memory failed\n");
retval = -ENOMEM;
goto error;
goto err_destroy_dma;
}
/* initialize ep0 status request structure */
@ -2028,13 +2279,13 @@ int mv_udc_probe(struct platform_device *dev)
if (!udc->status_req) {
dev_err(&dev->dev, "allocate status_req memory failed\n");
retval = -ENOMEM;
goto error;
goto err_free_eps;
}
INIT_LIST_HEAD(&udc->status_req->queue);
/* allocate a small amount of memory to get valid address */
udc->status_req->req.buf = kzalloc(8, GFP_KERNEL);
udc->status_req->req.dma = virt_to_phys(udc->status_req->req.buf);
udc->status_req->req.dma = DMA_ADDR_INVALID;
udc->resume_state = USB_STATE_NOTATTACHED;
udc->usb_state = USB_STATE_POWERED;
@ -2045,15 +2296,15 @@ int mv_udc_probe(struct platform_device *dev)
if (r == NULL) {
dev_err(&dev->dev, "no IRQ resource defined\n");
retval = -ENODEV;
goto error;
goto err_free_status_req;
}
udc->irq = r->start;
if (request_irq(udc->irq, mv_udc_irq,
IRQF_DISABLED | IRQF_SHARED, driver_name, udc)) {
IRQF_SHARED, driver_name, udc)) {
dev_err(&dev->dev, "Request irq %d for UDC failed\n",
udc->irq);
retval = -ENODEV;
goto error;
goto err_free_status_req;
}
/* initialize gadget structure */
@ -2072,18 +2323,82 @@ int mv_udc_probe(struct platform_device *dev)
retval = device_register(&udc->gadget.dev);
if (retval)
goto error;
goto err_free_irq;
eps_init(udc);
the_controller = udc;
/* VBUS detect: we can disable/enable clock on demand.*/
if (pdata->vbus) {
udc->clock_gating = 1;
retval = request_threaded_irq(pdata->vbus->irq, NULL,
mv_udc_vbus_irq, IRQF_ONESHOT, "vbus", udc);
if (retval) {
dev_info(&dev->dev,
"Can not request irq for VBUS, "
"disable clock gating\n");
udc->clock_gating = 0;
}
udc->qwork = create_singlethread_workqueue("mv_udc_queue");
if (!udc->qwork) {
dev_err(&dev->dev, "cannot create workqueue\n");
retval = -ENOMEM;
goto err_unregister;
}
INIT_WORK(&udc->vbus_work, mv_udc_vbus_work);
}
/*
* When clock gating is supported, we can disable clk and phy.
* If not, it means that VBUS detection is not supported, we
* have to enable vbus active all the time to let controller work.
*/
if (udc->clock_gating) {
if (udc->pdata->phy_deinit)
udc->pdata->phy_deinit(udc->phy_regs);
udc_clock_disable(udc);
} else
udc->vbus_active = 1;
retval = usb_add_gadget_udc(&dev->dev, &udc->gadget);
if (!retval)
return retval;
error:
if (udc)
mv_udc_remove(udc->dev);
if (retval)
goto err_unregister;
dev_info(&dev->dev, "successful probe UDC device %s clock gating.\n",
udc->clock_gating ? "with" : "without");
return 0;
err_unregister:
if (udc->pdata && udc->pdata->vbus && udc->clock_gating)
free_irq(pdata->vbus->irq, &dev->dev);
device_unregister(&udc->gadget.dev);
err_free_irq:
free_irq(udc->irq, &dev->dev);
err_free_status_req:
kfree(udc->status_req->req.buf);
kfree(udc->status_req);
err_free_eps:
kfree(udc->eps);
err_destroy_dma:
dma_pool_destroy(udc->dtd_pool);
err_free_dma:
dma_free_coherent(&dev->dev, udc->ep_dqh_size,
udc->ep_dqh, udc->ep_dqh_dma);
err_disable_clock:
if (udc->pdata->phy_deinit)
udc->pdata->phy_deinit(udc->phy_regs);
udc_clock_disable(udc);
err_iounmap_phyreg:
iounmap((void *)udc->phy_regs);
err_iounmap_capreg:
iounmap(udc->cap_regs);
err_put_clk:
for (clk_i--; clk_i >= 0; clk_i--)
clk_put(udc->clk[clk_i]);
the_controller = NULL;
kfree(udc);
return retval;
}
@ -2102,11 +2417,16 @@ static int mv_udc_resume(struct device *_dev)
struct mv_udc *udc = the_controller;
int retval;
retval = mv_udc_phy_init(udc->phy_regs);
if (retval) {
dev_err(_dev, "phy initialization error %d\n", retval);
return retval;
if (udc->pdata->phy_init) {
retval = udc->pdata->phy_init(udc->phy_regs);
if (retval) {
dev_err(&udc->dev->dev,
"init phy error %d when resume back\n",
retval);
return retval;
}
}
udc_reset(udc);
ep0_reset(udc);
udc_start(udc);
@ -2120,9 +2440,21 @@ static const struct dev_pm_ops mv_udc_pm_ops = {
};
#endif
static void mv_udc_shutdown(struct platform_device *dev)
{
struct mv_udc *udc = the_controller;
u32 mode;
/* reset controller mode to IDLE */
mode = readl(&udc->op_regs->usbmode);
mode &= ~3;
writel(mode, &udc->op_regs->usbmode);
}
static struct platform_driver udc_driver = {
.probe = mv_udc_probe,
.remove = __exit_p(mv_udc_remove),
.shutdown = mv_udc_shutdown,
.driver = {
.owner = THIS_MODULE,
.name = "pxa-u2o",

214
drivers/usb/gadget/mv_udc_phy.c
View File

@ -1,214 +0,0 @@
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/io.h>
#include <linux/errno.h>
#include <mach/cputype.h>
#ifdef CONFIG_ARCH_MMP
#define UTMI_REVISION 0x0
#define UTMI_CTRL 0x4
#define UTMI_PLL 0x8
#define UTMI_TX 0xc
#define UTMI_RX 0x10
#define UTMI_IVREF 0x14
#define UTMI_T0 0x18
#define UTMI_T1 0x1c
#define UTMI_T2 0x20
#define UTMI_T3 0x24
#define UTMI_T4 0x28
#define UTMI_T5 0x2c
#define UTMI_RESERVE 0x30
#define UTMI_USB_INT 0x34
#define UTMI_DBG_CTL 0x38
#define UTMI_OTG_ADDON 0x3c
/* For UTMICTRL Register */
#define UTMI_CTRL_USB_CLK_EN (1 << 31)
/* pxa168 */
#define UTMI_CTRL_SUSPEND_SET1 (1 << 30)
#define UTMI_CTRL_SUSPEND_SET2 (1 << 29)
#define UTMI_CTRL_RXBUF_PDWN (1 << 24)
#define UTMI_CTRL_TXBUF_PDWN (1 << 11)
#define UTMI_CTRL_INPKT_DELAY_SHIFT 30
#define UTMI_CTRL_INPKT_DELAY_SOF_SHIFT 28
#define UTMI_CTRL_PU_REF_SHIFT 20
#define UTMI_CTRL_ARC_PULLDN_SHIFT 12
#define UTMI_CTRL_PLL_PWR_UP_SHIFT 1
#define UTMI_CTRL_PWR_UP_SHIFT 0
/* For UTMI_PLL Register */
#define UTMI_PLL_CLK_BLK_EN_SHIFT 24
#define UTMI_PLL_FBDIV_SHIFT 4
#define UTMI_PLL_REFDIV_SHIFT 0
#define UTMI_PLL_FBDIV_MASK 0x00000FF0
#define UTMI_PLL_REFDIV_MASK 0x0000000F
#define UTMI_PLL_ICP_MASK 0x00007000
#define UTMI_PLL_KVCO_MASK 0x00031000
#define UTMI_PLL_PLLCALI12_SHIFT 29
#define UTMI_PLL_PLLCALI12_MASK (0x3 << 29)
#define UTMI_PLL_PLLVDD18_SHIFT 27
#define UTMI_PLL_PLLVDD18_MASK (0x3 << 27)
#define UTMI_PLL_PLLVDD12_SHIFT 25
#define UTMI_PLL_PLLVDD12_MASK (0x3 << 25)
#define UTMI_PLL_KVCO_SHIFT 15
#define UTMI_PLL_ICP_SHIFT 12
/* For UTMI_TX Register */
#define UTMI_TX_REG_EXT_FS_RCAL_SHIFT 27
#define UTMI_TX_REG_EXT_FS_RCAL_MASK (0xf << 27)
#define UTMI_TX_REG_EXT_FS_RCAL_EN_MASK 26
#define UTMI_TX_REG_EXT_FS_RCAL_EN (0x1 << 26)
#define UTMI_TX_LOW_VDD_EN_SHIFT 11
#define UTMI_TX_IMPCAL_VTH_SHIFT 14
#define UTMI_TX_IMPCAL_VTH_MASK (0x7 << 14)
#define UTMI_TX_CK60_PHSEL_SHIFT 17
#define UTMI_TX_CK60_PHSEL_MASK (0xf << 17)
#define UTMI_TX_TXVDD12_SHIFT 22
#define UTMI_TX_TXVDD12_MASK (0x3 << 22)
#define UTMI_TX_AMP_SHIFT 0
#define UTMI_TX_AMP_MASK (0x7 << 0)
/* For UTMI_RX Register */
#define UTMI_RX_SQ_THRESH_SHIFT 4
#define UTMI_RX_SQ_THRESH_MASK (0xf << 4)
#define UTMI_REG_SQ_LENGTH_SHIFT 15
#define UTMI_REG_SQ_LENGTH_MASK (0x3 << 15)
#define REG_RCAL_START 0x00001000
#define VCOCAL_START 0x00200000
#define KVCO_EXT 0x00400000
#define PLL_READY 0x00800000
#define CLK_BLK_EN 0x01000000
#endif
static unsigned int u2o_read(unsigned int base, unsigned int offset)
{
return readl(base + offset);
}
static void u2o_set(unsigned int base, unsigned int offset, unsigned int value)
{
unsigned int reg;
reg = readl(base + offset);
reg |= value;
writel(reg, base + offset);
readl(base + offset);
}
static void u2o_clear(unsigned int base, unsigned int offset,
unsigned int value)
{
unsigned int reg;
reg = readl(base + offset);
reg &= ~value;
writel(reg, base + offset);
readl(base + offset);
}
static void u2o_write(unsigned int base, unsigned int offset,
unsigned int value)
{
writel(value, base + offset);
readl(base + offset);
}
#ifdef CONFIG_ARCH_MMP
int mv_udc_phy_init(unsigned int base)
{
unsigned long timeout;
/* Initialize the USB PHY power */
if (cpu_is_pxa910()) {
u2o_set(base, UTMI_CTRL, (1 << UTMI_CTRL_INPKT_DELAY_SOF_SHIFT)
| (1 << UTMI_CTRL_PU_REF_SHIFT));
}
u2o_set(base, UTMI_CTRL, 1 << UTMI_CTRL_PLL_PWR_UP_SHIFT);
u2o_set(base, UTMI_CTRL, 1 << UTMI_CTRL_PWR_UP_SHIFT);
/* UTMI_PLL settings */
u2o_clear(base, UTMI_PLL, UTMI_PLL_PLLVDD18_MASK
| UTMI_PLL_PLLVDD12_MASK | UTMI_PLL_PLLCALI12_MASK
| UTMI_PLL_FBDIV_MASK | UTMI_PLL_REFDIV_MASK
| UTMI_PLL_ICP_MASK | UTMI_PLL_KVCO_MASK);
u2o_set(base, UTMI_PLL, (0xee << UTMI_PLL_FBDIV_SHIFT)
| (0xb << UTMI_PLL_REFDIV_SHIFT)
| (3 << UTMI_PLL_PLLVDD18_SHIFT)
| (3 << UTMI_PLL_PLLVDD12_SHIFT)
| (3 << UTMI_PLL_PLLCALI12_SHIFT)
| (1 << UTMI_PLL_ICP_SHIFT) | (3 << UTMI_PLL_KVCO_SHIFT));
/* UTMI_TX */
u2o_clear(base, UTMI_TX, UTMI_TX_REG_EXT_FS_RCAL_EN_MASK
| UTMI_TX_TXVDD12_MASK
| UTMI_TX_CK60_PHSEL_MASK | UTMI_TX_IMPCAL_VTH_MASK
| UTMI_TX_REG_EXT_FS_RCAL_MASK | UTMI_TX_AMP_MASK);
u2o_set(base, UTMI_TX, (3 << UTMI_TX_TXVDD12_SHIFT)
| (4 << UTMI_TX_CK60_PHSEL_SHIFT)
| (4 << UTMI_TX_IMPCAL_VTH_SHIFT)
| (8 << UTMI_TX_REG_EXT_FS_RCAL_SHIFT)
| (3 << UTMI_TX_AMP_SHIFT));
/* UTMI_RX */
u2o_clear(base, UTMI_RX, UTMI_RX_SQ_THRESH_MASK
| UTMI_REG_SQ_LENGTH_MASK);
if (cpu_is_pxa168())
u2o_set(base, UTMI_RX, (7 << UTMI_RX_SQ_THRESH_SHIFT)
| (2 << UTMI_REG_SQ_LENGTH_SHIFT));
else
u2o_set(base, UTMI_RX, (0x7 << UTMI_RX_SQ_THRESH_SHIFT)
| (2 << UTMI_REG_SQ_LENGTH_SHIFT));
/* UTMI_IVREF */
if (cpu_is_pxa168())
/*
* fixing Microsoft Altair board interface with NEC hub issue -
* Set UTMI_IVREF from 0x4a3 to 0x4bf
*/
u2o_write(base, UTMI_IVREF, 0x4bf);
/* calibrate */
timeout = jiffies + 100;
while ((u2o_read(base, UTMI_PLL) & PLL_READY) == 0) {
if (time_after(jiffies, timeout))
return -ETIME;
cpu_relax();
}
/* toggle VCOCAL_START bit of UTMI_PLL */
udelay(200);
u2o_set(base, UTMI_PLL, VCOCAL_START);
udelay(40);
u2o_clear(base, UTMI_PLL, VCOCAL_START);
/* toggle REG_RCAL_START bit of UTMI_TX */
udelay(200);
u2o_set(base, UTMI_TX, REG_RCAL_START);
udelay(40);
u2o_clear(base, UTMI_TX, REG_RCAL_START);
udelay(200);
/* make sure phy is ready */
timeout = jiffies + 100;
while ((u2o_read(base, UTMI_PLL) & PLL_READY) == 0) {
if (time_after(jiffies, timeout))
return -ETIME;
cpu_relax();
}
if (cpu_is_pxa168()) {
u2o_set(base, UTMI_RESERVE, 1 << 5);
/* Turn on UTMI PHY OTG extension */
u2o_write(base, UTMI_OTG_ADDON, 1);
}
return 0;
}
#else
int mv_udc_phy_init(unsigned int base)
{
return 0;
}
#endif

9
drivers/usb/gadget/ncm.c
View File

@ -14,15 +14,6 @@
* 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
*/
/* #define DEBUG */

6
drivers/usb/gadget/ndis.h
View File

@ -10,12 +10,6 @@
*
* This source code is offered for use in the public domain. You may
* use, modify or distribute it freely.
*
* This code is distributed in the hope that it will be useful but
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
* DISCLAIMED. This includes but is not limited to warranties of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
*/
#ifndef _LINUX_NDIS_H

78
drivers/usb/gadget/net2272.c
View File

@ -204,7 +204,7 @@ net2272_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)
return -ESHUTDOWN;
max = le16_to_cpu(desc->wMaxPacketSize) & 0x1fff;
max = usb_endpoint_maxp(desc) & 0x1fff;
spin_lock_irqsave(&dev->lock, flags);
_ep->maxpacket = max & 0x7fff;
@ -1172,17 +1172,18 @@ net2272_pullup(struct usb_gadget *_gadget, int is_on)
return 0;
}
static int net2272_start(struct usb_gadget_driver *driver,
int (*bind)(struct usb_gadget *));
static int net2272_stop(struct usb_gadget_driver *driver);
static int net2272_start(struct usb_gadget *_gadget,
struct usb_gadget_driver *driver);
static int net2272_stop(struct usb_gadget *_gadget,
struct usb_gadget_driver *driver);
static const struct usb_gadget_ops net2272_ops = {
.get_frame = net2272_get_frame,
.wakeup = net2272_wakeup,
.get_frame = net2272_get_frame,
.wakeup = net2272_wakeup,
.set_selfpowered = net2272_set_selfpowered,
.pullup = net2272_pullup,
.start = net2272_start,
.stop = net2272_stop,
.pullup = net2272_pullup,
.udc_start = net2272_start,
.udc_stop = net2272_stop,
};
/*---------------------------------------------------------------------------*/
@ -1356,8 +1357,6 @@ net2272_set_fifo_mode(struct net2272 *dev, int mode)
/*---------------------------------------------------------------------------*/
static struct net2272 *the_controller;
static void
net2272_usb_reset(struct net2272 *dev)
{
@ -1453,20 +1452,17 @@ net2272_ep0_start(struct net2272 *dev)
* disconnect is reported. then a host may connect again, or
* the driver might get unbound.
*/
static int net2272_start(struct usb_gadget_driver *driver,
int (*bind)(struct usb_gadget *))
static int net2272_start(struct usb_gadget *_gadget,
struct usb_gadget_driver *driver)
{
struct net2272 *dev = the_controller;
int ret;
struct net2272 *dev;
unsigned i;
if (!driver || !bind || !driver->unbind || !driver->setup ||
if (!driver || !driver->unbind || !driver->setup ||
driver->speed != USB_SPEED_HIGH)
return -EINVAL;
if (!dev)
return -ENODEV;
if (dev->driver)
return -EBUSY;
dev = container_of(_gadget, struct net2272, gadget);
for (i = 0; i < 4; ++i)
dev->ep[i].irqs = 0;
@ -1475,14 +1471,6 @@ static int net2272_start(struct usb_gadget_driver *driver,
driver->driver.bus = NULL;
dev->driver = driver;
dev->gadget.dev.driver = &driver->driver;
ret = bind(&dev->gadget);
if (ret) {
dev_dbg(dev->dev, "bind to driver %s --> %d\n",
driver->driver.name, ret);
dev->driver = NULL;
dev->gadget.dev.driver = NULL;
return ret;
}
/* ... then enable host detection and ep0; and we're ready
* for set_configuration as well as eventual disconnect.
@ -1510,33 +1498,21 @@ stop_activity(struct net2272 *dev, struct usb_gadget_driver *driver)
for (i = 0; i < 4; ++i)
net2272_dequeue_all(&dev->ep[i]);
/* report disconnect; the driver is already quiesced */
if (driver) {
spin_unlock(&dev->lock);
driver->disconnect(&dev->gadget);
spin_lock(&dev->lock);
}
net2272_usb_reinit(dev);
}
static int net2272_stop(struct usb_gadget_driver *driver)
static int net2272_stop(struct usb_gadget *_gadget,
struct usb_gadget_driver *driver)
{
struct net2272 *dev = the_controller;
struct net2272 *dev;
unsigned long flags;
if (!dev)
return -ENODEV;
if (!driver || driver != dev->driver)
return -EINVAL;
dev = container_of(_gadget, struct net2272, gadget);
spin_lock_irqsave(&dev->lock, flags);
stop_activity(dev, driver);
spin_unlock_irqrestore(&dev->lock, flags);
net2272_pullup(&dev->gadget, 0);
driver->unbind(&dev->gadget);
dev->gadget.dev.driver = NULL;
dev->driver = NULL;
@ -1764,8 +1740,8 @@ net2272_handle_stat0_irqs(struct net2272 *dev, u8 stat)
dev->gadget.speed = USB_SPEED_HIGH;
else
dev->gadget.speed = USB_SPEED_FULL;
dev_dbg(dev->dev, "%s speed\n",
(dev->gadget.speed == USB_SPEED_HIGH) ? "high" : "full");
dev_dbg(dev->dev, "%s\n",
usb_speed_string(dev->gadget.speed));
}
ep = &dev->ep[0];
@ -2238,7 +2214,6 @@ net2272_remove(struct net2272 *dev)
device_remove_file(dev->dev, &dev_attr_registers);
dev_info(dev->dev, "unbind\n");
the_controller = NULL;
}
static struct net2272 * __devinit
@ -2246,11 +2221,6 @@ net2272_probe_init(struct device *dev, unsigned int irq)
{
struct net2272 *ret;
if (the_controller) {
dev_warn(dev, "ignoring\n");
return ERR_PTR(-EBUSY);
}
if (!irq) {
dev_dbg(dev, "No IRQ!\n");
return ERR_PTR(-ENODEV);
@ -2307,8 +2277,6 @@ net2272_probe_fin(struct net2272 *dev, unsigned int irqflags)
dma_mode_string());
dev_info(dev->dev, "version: %s\n", driver_vers);
the_controller = dev;
ret = device_register(&dev->gadget.dev);
if (ret)
goto err_irq;
@ -2684,8 +2652,6 @@ net2272_plat_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "running in 16-bit, %sbyte swap local bus mode\n",
(net2272_read(dev, LOCCTL) & (1 << BYTE_SWAP)) ? "" : "no ");
the_controller = dev;
return 0;
err_io:

87
drivers/usb/gadget/net2280.c
View File

@ -33,15 +33,6 @@
* 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
*/
#undef DEBUG /* messages on error and most fault paths */
@ -169,7 +160,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
return -EDOM;
/* sanity check ep-e/ep-f since their fifos are small */
max = le16_to_cpu (desc->wMaxPacketSize) & 0x1fff;
max = usb_endpoint_maxp (desc) & 0x1fff;
if (ep->num > 4 && max > 64)
return -ERANGE;
@ -1410,17 +1401,18 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on)
return 0;
}
static int net2280_start(struct usb_gadget_driver *driver,
int (*bind)(struct usb_gadget *));
static int net2280_stop(struct usb_gadget_driver *driver);
static int net2280_start(struct usb_gadget *_gadget,
struct usb_gadget_driver *driver);
static int net2280_stop(struct usb_gadget *_gadget,
struct usb_gadget_driver *driver);
static const struct usb_gadget_ops net2280_ops = {
.get_frame = net2280_get_frame,
.wakeup = net2280_wakeup,
.set_selfpowered = net2280_set_selfpowered,
.pullup = net2280_pullup,
.start = net2280_start,
.stop = net2280_stop,
.udc_start = net2280_start,
.udc_stop = net2280_stop,
};
/*-------------------------------------------------------------------------*/
@ -1640,7 +1632,7 @@ show_queues (struct device *_dev, struct device_attribute *attr, char *buf)
default:
val = "iso"; break;
}; val; }),
le16_to_cpu (d->wMaxPacketSize) & 0x1fff,
usb_endpoint_maxp (d) & 0x1fff,
ep->dma ? "dma" : "pio", ep->fifo_size
);
} else /* ep0 should only have one transfer queued */
@ -1753,8 +1745,6 @@ static void set_fifo_mode (struct net2280 *dev, int mode)
* perhaps to bind specific drivers to specific devices.
*/
static struct net2280 *the_controller;
static void usb_reset (struct net2280 *dev)
{
u32 tmp;
@ -1880,10 +1870,10 @@ static void ep0_start (struct net2280 *dev)
* disconnect is reported. then a host may connect again, or
* the driver might get unbound.
*/
static int net2280_start(struct usb_gadget_driver *driver,
int (*bind)(struct usb_gadget *))
static int net2280_start(struct usb_gadget *_gadget,
struct usb_gadget_driver *driver)
{
struct net2280 *dev = the_controller;
struct net2280 *dev;
int retval;
unsigned i;
@ -1891,14 +1881,11 @@ static int net2280_start(struct usb_gadget_driver *driver,
* (dev->usb->xcvrdiag & FORCE_FULL_SPEED_MODE)
* "must not be used in normal operation"
*/
if (!driver
|| driver->speed != USB_SPEED_HIGH
|| !bind || !driver->setup)
if (!driver || driver->speed != USB_SPEED_HIGH
|| !driver->setup)
return -EINVAL;
if (!dev)
return -ENODEV;
if (dev->driver)
return -EBUSY;
dev = container_of (_gadget, struct net2280, gadget);
for (i = 0; i < 7; i++)
dev->ep [i].irqs = 0;
@ -1908,14 +1895,6 @@ static int net2280_start(struct usb_gadget_driver *driver,
driver->driver.bus = NULL;
dev->driver = driver;
dev->gadget.dev.driver = &driver->driver;
retval = bind(&dev->gadget);
if (retval) {
DEBUG (dev, "bind to driver %s --> %d\n",
driver->driver.name, retval);
dev->driver = NULL;
dev->gadget.dev.driver = NULL;
return retval;
}
retval = device_create_file (&dev->pdev->dev, &dev_attr_function);
if (retval) goto err_unbind;
@ -1961,33 +1940,21 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver)
for (i = 0; i < 7; i++)
nuke (&dev->ep [i]);
/* report disconnect; the driver is already quiesced */
if (driver) {
spin_unlock (&dev->lock);
driver->disconnect (&dev->gadget);
spin_lock (&dev->lock);
}
usb_reinit (dev);
}
static int net2280_stop(struct usb_gadget_driver *driver)
static int net2280_stop(struct usb_gadget *_gadget,
struct usb_gadget_driver *driver)
{
struct net2280 *dev = the_controller;
struct net2280 *dev;
unsigned long flags;
if (!dev)
return -ENODEV;
if (!driver || driver != dev->driver || !driver->unbind)
return -EINVAL;
dev = container_of (_gadget, struct net2280, gadget);
spin_lock_irqsave (&dev->lock, flags);
stop_activity (dev, driver);
spin_unlock_irqrestore (&dev->lock, flags);
net2280_pullup (&dev->gadget, 0);
driver->unbind (&dev->gadget);
dev->gadget.dev.driver = NULL;
dev->driver = NULL;
@ -2266,9 +2233,7 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
else
dev->gadget.speed = USB_SPEED_FULL;
net2280_led_speed (dev, dev->gadget.speed);
DEBUG (dev, "%s speed\n",
(dev->gadget.speed == USB_SPEED_HIGH)
? "high" : "full");
DEBUG(dev, "%s\n", usb_speed_string(dev->gadget.speed));
}
ep = &dev->ep [0];
@ -2709,8 +2674,6 @@ static void net2280_remove (struct pci_dev *pdev)
pci_set_drvdata (pdev, NULL);
INFO (dev, "unbind\n");
the_controller = NULL;
}
/* wrap this driver around the specified device, but
@ -2724,14 +2687,6 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
void __iomem *base = NULL;
int retval, i;
/* if you want to support more than one controller in a system,
* usb_gadget_driver_{register,unregister}() must change.
*/
if (the_controller) {
dev_warn (&pdev->dev, "ignoring\n");
return -EBUSY;
}
/* alloc, and start init */
dev = kzalloc (sizeof *dev, GFP_KERNEL);
if (dev == NULL){
@ -2858,8 +2813,6 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
use_dma
? (use_dma_chaining ? "chaining" : "enabled")
: "disabled");
the_controller = dev;
retval = device_register (&dev->gadget.dev);
if (retval) goto done;
retval = device_create_file (&pdev->dev, &dev_attr_registers);

9
drivers/usb/gadget/net2280.h
View File

@ -11,15 +11,6 @@
* 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
*/
#include <linux/usb/net2280.h>

18
drivers/usb/gadget/omap_udc.c
View File

@ -10,15 +10,6 @@
* 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
*/
#undef DEBUG
@ -166,15 +157,14 @@ static int omap_ep_enable(struct usb_ep *_ep,
if (!_ep || !desc || ep->desc
|| desc->bDescriptorType != USB_DT_ENDPOINT
|| ep->bEndpointAddress != desc->bEndpointAddress
|| ep->maxpacket < le16_to_cpu
(desc->wMaxPacketSize)) {
|| ep->maxpacket < usb_endpoint_maxp(desc)) {
DBG("%s, bad ep or descriptor\n", __func__);
return -EINVAL;
}
maxp = le16_to_cpu (desc->wMaxPacketSize);
maxp = usb_endpoint_maxp(desc);
if ((desc->bmAttributes == USB_ENDPOINT_XFER_BULK
&& maxp != ep->maxpacket)
|| le16_to_cpu(desc->wMaxPacketSize) > ep->maxpacket
|| usb_endpoint_maxp(desc) > ep->maxpacket
|| !desc->wMaxPacketSize) {
DBG("%s, bad %s maxpacket\n", __func__, _ep->name);
return -ERANGE;
@ -2968,7 +2958,7 @@ static int __init omap_udc_probe(struct platform_device *pdev)
}
#ifdef USE_ISO
status = request_irq(pdev->resource[3].start, omap_udc_iso_irq,
IRQF_DISABLED, "omap_udc iso", udc);
0, "omap_udc iso", udc);
if (status != 0) {
ERR("can't get irq %d, err %d\n",
(int) pdev->resource[3].start, status);

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