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linux/drivers/usb/core/quirks.c
Johan Hovold bdd1b147b8 USB: quirks: blacklist duplicate ep on Sound Devices USBPre2 
This device has a broken vendor-specific altsetting for interface 1,
where endpoint 0x85 is declared as an isochronous endpoint despite being
used by interface 2 for audio capture.

Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x0926
  idProduct          0x0202
  bcdDevice            1.00
  iManufacturer           1 Sound Devices
  iProduct                2 USBPre2
  iSerial                 3 [...]
  bNumConfigurations      1

[...]

    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       3
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0126  1x 294 bytes
        bInterval               1

[...]

    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0
      iInterface              0
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           4
        bDelay                  1 frames
        wFormatTag         0x0001 PCM
      AudioStreaming Interface Descriptor:
        bLength                26
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             2
        bSubframeSize           2
        bBitResolution         16
        bSamFreqType            6 Discrete
        tSamFreq[ 0]         8000
        tSamFreq[ 1]        16000
        tSamFreq[ 2]        24000
        tSamFreq[ 3]        32000
        tSamFreq[ 4]        44100
        tSamFreq[ 5]        48000
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0126  1x 294 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         2 Decoded PCM samples
          wLockDelay         0x0000

Since commit 3e4f8e21c4 ("USB: core: fix check for duplicate
endpoints") USB core ignores any duplicate endpoints found during
descriptor parsing, but in this case we need to ignore the first
instance in order to avoid breaking the audio capture interface.

Fixes: 3e4f8e21c4 ("USB: core: fix check for duplicate endpoints")
Cc: stable <stable@vger.kernel.org>
Reported-by: edes <edes@gmx.net>
Tested-by: edes <edes@gmx.net>
Link: https://lore.kernel.org/r/20200201105829.5682c887@acme7.acmenet
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20200203153830.26394-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-10 11:14:22 -08:00

639 lines
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// SPDX-License-Identifier: GPL-2.0
/*
* USB device quirk handling logic and table
*
* Copyright (c) 2007 Oliver Neukum
* Copyright (c) 2007 Greg Kroah-Hartman <gregkh@suse.de>
*/
#include <linux/moduleparam.h>
#include <linux/usb.h>
#include <linux/usb/quirks.h>
#include <linux/usb/hcd.h>
#include "usb.h"
struct quirk_entry {
u16 vid;
u16 pid;
u32 flags;
};
static DEFINE_MUTEX(quirk_mutex);
static struct quirk_entry *quirk_list;
static unsigned int quirk_count;
static char quirks_param[128];
static int quirks_param_set(const char *val, const struct kernel_param *kp)
{
char *p, *field;
u16 vid, pid;
u32 flags;
size_t i;
int err;
err = param_set_copystring(val, kp);
if (err)
return err;
mutex_lock(&quirk_mutex);
if (!*val) {
quirk_count = 0;
kfree(quirk_list);
quirk_list = NULL;
goto unlock;
}
for (quirk_count = 1, i = 0; val[i]; i++)
if (val[i] == ',')
quirk_count++;
if (quirk_list) {
kfree(quirk_list);
quirk_list = NULL;
}
quirk_list = kcalloc(quirk_count, sizeof(struct quirk_entry),
GFP_KERNEL);
if (!quirk_list) {
quirk_count = 0;
mutex_unlock(&quirk_mutex);
return -ENOMEM;
}
for (i = 0, p = (char *)val; p && *p;) {
/* Each entry consists of VID:PID:flags */
field = strsep(&p, ":");
if (!field)
break;
if (kstrtou16(field, 16, &vid))
break;
field = strsep(&p, ":");
if (!field)
break;
if (kstrtou16(field, 16, &pid))
break;
field = strsep(&p, ",");
if (!field || !*field)
break;
/* Collect the flags */
for (flags = 0; *field; field++) {
switch (*field) {
case 'a':
flags |= USB_QUIRK_STRING_FETCH_255;
break;
case 'b':
flags |= USB_QUIRK_RESET_RESUME;
break;
case 'c':
flags |= USB_QUIRK_NO_SET_INTF;
break;
case 'd':
flags |= USB_QUIRK_CONFIG_INTF_STRINGS;
break;
case 'e':
flags |= USB_QUIRK_RESET;
break;
case 'f':
flags |= USB_QUIRK_HONOR_BNUMINTERFACES;
break;
case 'g':
flags |= USB_QUIRK_DELAY_INIT;
break;
case 'h':
flags |= USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL;
break;
case 'i':
flags |= USB_QUIRK_DEVICE_QUALIFIER;
break;
case 'j':
flags |= USB_QUIRK_IGNORE_REMOTE_WAKEUP;
break;
case 'k':
flags |= USB_QUIRK_NO_LPM;
break;
case 'l':
flags |= USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL;
break;
case 'm':
flags |= USB_QUIRK_DISCONNECT_SUSPEND;
break;
case 'n':
flags |= USB_QUIRK_DELAY_CTRL_MSG;
break;
case 'o':
flags |= USB_QUIRK_HUB_SLOW_RESET;
break;
/* Ignore unrecognized flag characters */
}
}
quirk_list[i++] = (struct quirk_entry)
{ .vid = vid, .pid = pid, .flags = flags };
}
if (i < quirk_count)
quirk_count = i;
unlock:
mutex_unlock(&quirk_mutex);
return 0;
}
static const struct kernel_param_ops quirks_param_ops = {
.set = quirks_param_set,
.get = param_get_string,
};
static struct kparam_string quirks_param_string = {
.maxlen = sizeof(quirks_param),
.string = quirks_param,
};
device_param_cb(quirks, &quirks_param_ops, &quirks_param_string, 0644);
MODULE_PARM_DESC(quirks, "Add/modify USB quirks by specifying quirks=vendorID:productID:quirks");
/* Lists of quirky USB devices, split in device quirks and interface quirks.
* Device quirks are applied at the very beginning of the enumeration process,
* right after reading the device descriptor. They can thus only match on device
* information.
*
* Interface quirks are applied after reading all the configuration descriptors.
* They can match on both device and interface information.
*
* Note that the DELAY_INIT and HONOR_BNUMINTERFACES quirks do not make sense as
* interface quirks, as they only influence the enumeration process which is run
* before processing the interface quirks.
*
* Please keep the lists ordered by:
* 1) Vendor ID
* 2) Product ID
* 3) Class ID
*/
static const struct usb_device_id usb_quirk_list[] = {
/* CBM - Flash disk */
{ USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },
/* WORLDE Controller KS49 or Prodipe MIDI 49C USB controller */
{ USB_DEVICE(0x0218, 0x0201), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* WORLDE easy key (easykey.25) MIDI controller */
{ USB_DEVICE(0x0218, 0x0401), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* HP 5300/5370C scanner */
{ USB_DEVICE(0x03f0, 0x0701), .driver_info =
USB_QUIRK_STRING_FETCH_255 },
/* HP v222w 16GB Mini USB Drive */
{ USB_DEVICE(0x03f0, 0x3f40), .driver_info = USB_QUIRK_DELAY_INIT },
/* Creative SB Audigy 2 NX */
{ USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },
/* USB3503 */
{ USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },
/* Microsoft Wireless Laser Mouse 6000 Receiver */
{ USB_DEVICE(0x045e, 0x00e1), .driver_info = USB_QUIRK_RESET_RESUME },
/* Microsoft LifeCam-VX700 v2.0 */
{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },
/* Microsoft Surface Dock Ethernet (RTL8153 GigE) */
{ USB_DEVICE(0x045e, 0x07c6), .driver_info = USB_QUIRK_NO_LPM },
/* Cherry Stream G230 2.0 (G85-231) and 3.0 (G85-232) */
{ USB_DEVICE(0x046a, 0x0023), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech HD Webcam C270 */
{ USB_DEVICE(0x046d, 0x0825), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech HD Pro Webcams C920, C920-C, C925e and C930e */
{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
{ USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT },
{ USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },
{ USB_DEVICE(0x046d, 0x085b), .driver_info = USB_QUIRK_DELAY_INIT },
/* Logitech ConferenceCam CC3000e */
{ USB_DEVICE(0x046d, 0x0847), .driver_info = USB_QUIRK_DELAY_INIT },
{ USB_DEVICE(0x046d, 0x0848), .driver_info = USB_QUIRK_DELAY_INIT },
/* Logitech PTZ Pro Camera */
{ USB_DEVICE(0x046d, 0x0853), .driver_info = USB_QUIRK_DELAY_INIT },
/* Logitech Quickcam Fusion */
{ USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Quickcam Orbit MP */
{ USB_DEVICE(0x046d, 0x08c2), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Quickcam Pro for Notebook */
{ USB_DEVICE(0x046d, 0x08c3), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Quickcam Pro 5000 */
{ USB_DEVICE(0x046d, 0x08c5), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Quickcam OEM Dell Notebook */
{ USB_DEVICE(0x046d, 0x08c6), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Quickcam OEM Cisco VT Camera II */
{ USB_DEVICE(0x046d, 0x08c7), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Harmony 700-series */
{ USB_DEVICE(0x046d, 0xc122), .driver_info = USB_QUIRK_DELAY_INIT },
/* Philips PSC805 audio device */
{ USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },
/* Plantronic Audio 655 DSP */
{ USB_DEVICE(0x047f, 0xc008), .driver_info = USB_QUIRK_RESET_RESUME },
/* Plantronic Audio 648 USB */
{ USB_DEVICE(0x047f, 0xc013), .driver_info = USB_QUIRK_RESET_RESUME },
/* Artisman Watchdog Dongle */
{ USB_DEVICE(0x04b4, 0x0526), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* Microchip Joss Optical infrared touchboard device */
{ USB_DEVICE(0x04d8, 0x000c), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* CarrolTouch 4000U */
{ USB_DEVICE(0x04e7, 0x0009), .driver_info = USB_QUIRK_RESET_RESUME },
/* CarrolTouch 4500U */
{ USB_DEVICE(0x04e7, 0x0030), .driver_info = USB_QUIRK_RESET_RESUME },
/* Samsung Android phone modem - ID conflict with SPH-I500 */
{ USB_DEVICE(0x04e8, 0x6601), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* Elan Touchscreen */
{ USB_DEVICE(0x04f3, 0x0089), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
{ USB_DEVICE(0x04f3, 0x009b), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
{ USB_DEVICE(0x04f3, 0x010c), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
{ USB_DEVICE(0x04f3, 0x0125), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
{ USB_DEVICE(0x04f3, 0x0381), .driver_info =
USB_QUIRK_NO_LPM },
{ USB_DEVICE(0x04f3, 0x21b8), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
/* Roland SC-8820 */
{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
/* Edirol SD-20 */
{ USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
/* Alcor Micro Corp. Hub */
{ USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },
/* appletouch */
{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
/* Genesys Logic hub, internally used by KY-688 USB 3.1 Type-C Hub */
{ USB_DEVICE(0x05e3, 0x0612), .driver_info = USB_QUIRK_NO_LPM },
/* ELSA MicroLink 56K */
{ USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_RESET_RESUME },
/* Genesys Logic hub, internally used by Moshi USB to Ethernet Adapter */
{ USB_DEVICE(0x05e3, 0x0616), .driver_info = USB_QUIRK_NO_LPM },
/* Avision AV600U */
{ USB_DEVICE(0x0638, 0x0a13), .driver_info =
USB_QUIRK_STRING_FETCH_255 },
/* Saitek Cyborg Gold Joystick */
{ USB_DEVICE(0x06a3, 0x0006), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* Guillemot Webcam Hercules Dualpix Exchange (2nd ID) */
{ USB_DEVICE(0x06f8, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },
/* Guillemot Webcam Hercules Dualpix Exchange*/
{ USB_DEVICE(0x06f8, 0x3005), .driver_info = USB_QUIRK_RESET_RESUME },
/* Midiman M-Audio Keystation 88es */
{ USB_DEVICE(0x0763, 0x0192), .driver_info = USB_QUIRK_RESET_RESUME },
/* SanDisk Ultra Fit and Ultra Flair */
{ USB_DEVICE(0x0781, 0x5583), .driver_info = USB_QUIRK_NO_LPM },
{ USB_DEVICE(0x0781, 0x5591), .driver_info = USB_QUIRK_NO_LPM },
/* M-Systems Flash Disk Pioneers */
{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
/* Baum Vario Ultra */
{ USB_DEVICE(0x0904, 0x6101), .driver_info =
USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
{ USB_DEVICE(0x0904, 0x6102), .driver_info =
USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
{ USB_DEVICE(0x0904, 0x6103), .driver_info =
USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
/* Sound Devices USBPre2 */
{ USB_DEVICE(0x0926, 0x0202), .driver_info =
USB_QUIRK_ENDPOINT_BLACKLIST },
/* Keytouch QWERTY Panel keyboard */
{ USB_DEVICE(0x0926, 0x3333), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter */
{ USB_DEVICE(0x0971, 0x2000), .driver_info = USB_QUIRK_NO_SET_INTF },
/* Broadcom BCM92035DGROM BT dongle */
{ USB_DEVICE(0x0a5c, 0x2021), .driver_info = USB_QUIRK_RESET_RESUME },
/* MAYA44USB sound device */
{ USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME },
/* ASUS Base Station(T100) */
{ USB_DEVICE(0x0b05, 0x17e0), .driver_info =
USB_QUIRK_IGNORE_REMOTE_WAKEUP },
/* Action Semiconductor flash disk */
{ USB_DEVICE(0x10d6, 0x2200), .driver_info =
USB_QUIRK_STRING_FETCH_255 },
/* Huawei 4G LTE module */
{ USB_DEVICE(0x12d1, 0x15bb), .driver_info =
USB_QUIRK_DISCONNECT_SUSPEND },
{ USB_DEVICE(0x12d1, 0x15c3), .driver_info =
USB_QUIRK_DISCONNECT_SUSPEND },
/* SKYMEDI USB_DRIVE */
{ USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },
/* Razer - Razer Blade Keyboard */
{ USB_DEVICE(0x1532, 0x0116), .driver_info =
USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
/* BUILDWIN Photo Frame */
{ USB_DEVICE(0x1908, 0x1315), .driver_info =
USB_QUIRK_HONOR_BNUMINTERFACES },
/* Protocol and OTG Electrical Test Device */
{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
/* Terminus Technology Inc. Hub */
{ USB_DEVICE(0x1a40, 0x0101), .driver_info = USB_QUIRK_HUB_SLOW_RESET },
/* Corsair K70 RGB */
{ USB_DEVICE(0x1b1c, 0x1b13), .driver_info = USB_QUIRK_DELAY_INIT |
USB_QUIRK_DELAY_CTRL_MSG },
/* Corsair Strafe */
{ USB_DEVICE(0x1b1c, 0x1b15), .driver_info = USB_QUIRK_DELAY_INIT |
USB_QUIRK_DELAY_CTRL_MSG },
/* Corsair Strafe RGB */
{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT |
USB_QUIRK_DELAY_CTRL_MSG },
/* Corsair K70 LUX RGB */
{ USB_DEVICE(0x1b1c, 0x1b33), .driver_info = USB_QUIRK_DELAY_INIT },
/* Corsair K70 LUX */
{ USB_DEVICE(0x1b1c, 0x1b36), .driver_info = USB_QUIRK_DELAY_INIT },
/* MIDI keyboard WORLDE MINI */
{ USB_DEVICE(0x1c75, 0x0204), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* Acer C120 LED Projector */
{ USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
/* Blackmagic Design Intensity Shuttle */
{ USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
/* Blackmagic Design UltraStudio SDI */
{ USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
/* Hauppauge HVR-950q */
{ USB_DEVICE(0x2040, 0x7200), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
/* Raydium Touchscreen */
{ USB_DEVICE(0x2386, 0x3114), .driver_info = USB_QUIRK_NO_LPM },
{ USB_DEVICE(0x2386, 0x3119), .driver_info = USB_QUIRK_NO_LPM },
/* DJI CineSSD */
{ USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM },
/* INTEL VALUE SSD */
{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
{ } /* terminating entry must be last */
};
static const struct usb_device_id usb_interface_quirk_list[] = {
/* Logitech UVC Cameras */
{ USB_VENDOR_AND_INTERFACE_INFO(0x046d, USB_CLASS_VIDEO, 1, 0),
.driver_info = USB_QUIRK_RESET_RESUME },
{ } /* terminating entry must be last */
};
static const struct usb_device_id usb_amd_resume_quirk_list[] = {
/* Lenovo Mouse with Pixart controller */
{ USB_DEVICE(0x17ef, 0x602e), .driver_info = USB_QUIRK_RESET_RESUME },
/* Pixart Mouse */
{ USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
{ USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
{ USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },
{ USB_DEVICE(0x03f0, 0x2b4a), .driver_info = USB_QUIRK_RESET_RESUME },
/* Logitech Optical Mouse M90/M100 */
{ USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },
{ } /* terminating entry must be last */
};
/*
* Entries for blacklisted endpoints that should be ignored when parsing
* configuration descriptors.
*
* Matched for devices with USB_QUIRK_ENDPOINT_BLACKLIST.
*/
static const struct usb_device_id usb_endpoint_blacklist[] = {
{ USB_DEVICE_INTERFACE_NUMBER(0x0926, 0x0202, 1), .driver_info = 0x85 },
{ }
};
bool usb_endpoint_is_blacklisted(struct usb_device *udev,
struct usb_host_interface *intf,
struct usb_endpoint_descriptor *epd)
{
const struct usb_device_id *id;
unsigned int address;
for (id = usb_endpoint_blacklist; id->match_flags; ++id) {
if (!usb_match_device(udev, id))
continue;
if (!usb_match_one_id_intf(udev, intf, id))
continue;
address = id->driver_info;
if (address == epd->bEndpointAddress)
return true;
}
return false;
}
static bool usb_match_any_interface(struct usb_device *udev,
const struct usb_device_id *id)
{
unsigned int i;
for (i = 0; i < udev->descriptor.bNumConfigurations; ++i) {
struct usb_host_config *cfg = &udev->config[i];
unsigned int j;
for (j = 0; j < cfg->desc.bNumInterfaces; ++j) {
struct usb_interface_cache *cache;
struct usb_host_interface *intf;
cache = cfg->intf_cache[j];
if (cache->num_altsetting == 0)
continue;
intf = &cache->altsetting[0];
if (usb_match_one_id_intf(udev, intf, id))
return true;
}
}
return false;
}
static int usb_amd_resume_quirk(struct usb_device *udev)
{
struct usb_hcd *hcd;
hcd = bus_to_hcd(udev->bus);
/* The device should be attached directly to root hub */
if (udev->level == 1 && hcd->amd_resume_bug == 1)
return 1;
return 0;
}
static u32 usb_detect_static_quirks(struct usb_device *udev,
const struct usb_device_id *id)
{
u32 quirks = 0;
for (; id->match_flags; id++) {
if (!usb_match_device(udev, id))
continue;
if ((id->match_flags & USB_DEVICE_ID_MATCH_INT_INFO) &&
!usb_match_any_interface(udev, id))
continue;
quirks |= (u32)(id->driver_info);
}
return quirks;
}
static u32 usb_detect_dynamic_quirks(struct usb_device *udev)
{
u16 vid = le16_to_cpu(udev->descriptor.idVendor);
u16 pid = le16_to_cpu(udev->descriptor.idProduct);
int i, flags = 0;
mutex_lock(&quirk_mutex);
for (i = 0; i < quirk_count; i++) {
if (vid == quirk_list[i].vid && pid == quirk_list[i].pid) {
flags = quirk_list[i].flags;
break;
}
}
mutex_unlock(&quirk_mutex);
return flags;
}
/*
* Detect any quirks the device has, and do any housekeeping for it if needed.
*/
void usb_detect_quirks(struct usb_device *udev)
{
udev->quirks = usb_detect_static_quirks(udev, usb_quirk_list);
/*
* Pixart-based mice would trigger remote wakeup issue on AMD
* Yangtze chipset, so set them as RESET_RESUME flag.
*/
if (usb_amd_resume_quirk(udev))
udev->quirks |= usb_detect_static_quirks(udev,
usb_amd_resume_quirk_list);
udev->quirks ^= usb_detect_dynamic_quirks(udev);
if (udev->quirks)
dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
udev->quirks);
#ifdef CONFIG_USB_DEFAULT_PERSIST
if (!(udev->quirks & USB_QUIRK_RESET))
udev->persist_enabled = 1;
#else
/* Hubs are automatically enabled for USB-PERSIST */
if (udev->descriptor.bDeviceClass == USB_CLASS_HUB)
udev->persist_enabled = 1;
#endif /* CONFIG_USB_DEFAULT_PERSIST */
}
void usb_detect_interface_quirks(struct usb_device *udev)
{
u32 quirks;
quirks = usb_detect_static_quirks(udev, usb_interface_quirk_list);
if (quirks == 0)
return;
dev_dbg(&udev->dev, "USB interface quirks for this device: %x\n",
quirks);
udev->quirks |= quirks;
}
void usb_release_quirk_list(void)
{
mutex_lock(&quirk_mutex);
kfree(quirk_list);
quirk_list = NULL;
mutex_unlock(&quirk_mutex);
}
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