release/src-rt-6.x/linux/linux-2.6/drivers/usb/core/quirks.c

   1 /*
   2  * USB device quirk handling logic and table
   3  *
   4  * Copyright (c) 2007 Oliver Neukum
   5  * Copyright (c) 2007 Greg Kroah-Hartman <gregkh@suse.de>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation, version 2.
  10  *
  11  *
  12  */
  13
  14 #include <linux/usb.h>
  15 #include <linux/usb/quirks.h>
  16 #include "usb.h"
  17
  18 /* List of quirky USB devices.  Please keep this list ordered by:
  19  *      1) Vendor ID
  20  *      2) Product ID
  21  *      3) Class ID
  22  *
  23  * as we want specific devices to be overridden first, and only after that, any
  24  * class specific quirks.
  25  *
  26  * Right now the logic aborts if it finds a valid device in the table, we might
  27  * want to change that in the future if it turns out that a whole class of
  28  * devices is broken...
  29  */
  30 static const struct usb_device_id usb_quirk_list[] = {
  31         /* CBM - Flash disk */
  32         { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },
  33
  34         /* HP 5300/5370C scanner */
  35         { USB_DEVICE(0x03f0, 0x0701), .driver_info =
  36                         USB_QUIRK_STRING_FETCH_255 },
  37
  38         /* Creative SB Audigy 2 NX */
  39         { USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },
  40
  41         /* Logitech Harmony 700-series */
  42         { USB_DEVICE(0x046d, 0xc122), .driver_info = USB_QUIRK_DELAY_INIT },
  43
  44         /* Philips PSC805 audio device */
  45         { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },
  46
  47         /* Artisman Watchdog Dongle */
  48         { USB_DEVICE(0x04b4, 0x0526), .driver_info =
  49                         USB_QUIRK_CONFIG_INTF_STRINGS },
  50
  51         /* Samsung Android phone modem - ID conflict with SPH-I500 */
  52         { USB_DEVICE(0x04e8, 0x6601), .driver_info =
  53                         USB_QUIRK_CONFIG_INTF_STRINGS },
  54
  55         /* Roland SC-8820 */
  56         { USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
  57
  58         /* Edirol SD-20 */
  59         { USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
  60
  61         /* Avision AV600U */
  62         { USB_DEVICE(0x0638, 0x0a13), .driver_info =
  63           USB_QUIRK_STRING_FETCH_255 },
  64
  65         /* Saitek Cyborg Gold Joystick */
  66         { USB_DEVICE(0x06a3, 0x0006), .driver_info =
  67                         USB_QUIRK_CONFIG_INTF_STRINGS },
  68
  69         /* M-Systems Flash Disk Pioneers */
  70         { USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
  71
  72         /* Keytouch QWERTY Panel keyboard */
  73         { USB_DEVICE(0x0926, 0x3333), .driver_info =
  74                         USB_QUIRK_CONFIG_INTF_STRINGS },
  75
  76         /* X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter */
  77         { USB_DEVICE(0x0971, 0x2000), .driver_info = USB_QUIRK_NO_SET_INTF },
  78
  79         /* Broadcom BCM92035DGROM BT dongle */
  80         { USB_DEVICE(0x0a5c, 0x2021), .driver_info = USB_QUIRK_RESET_RESUME },
  81
  82         /* Action Semiconductor flash disk */
  83         { USB_DEVICE(0x10d6, 0x2200), .driver_info =
  84                         USB_QUIRK_STRING_FETCH_255 },
  85
  86         /* SKYMEDI USB_DRIVE */
  87         { USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },
  88
  89         /* BUILDWIN Photo Frame */
  90         { USB_DEVICE(0x1908, 0x1315), .driver_info =
  91                         USB_QUIRK_HONOR_BNUMINTERFACES },
  92
  93         /* INTEL VALUE SSD */
  94         { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
  95
  96         { }  /* terminating entry must be last */
  97 };
  98
  99 static const struct usb_device_id *find_id(struct usb_device *udev)
 100 {
 101         const struct usb_device_id *id = usb_quirk_list;
 102
 103         for (; id->idVendor || id->bDeviceClass || id->bInterfaceClass ||
 104                         id->driver_info; id++) {
 105                 if (usb_match_device(udev, id))
 106                         return id;
 107         }
 108         return NULL;
 109 }
 110
 111 /*
 112  * Detect any quirks the device has, and do any housekeeping for it if needed.
 113  */
 114 void usb_detect_quirks(struct usb_device *udev)
 115 {
 116         const struct usb_device_id *id = usb_quirk_list;
 117
 118         id = find_id(udev);
 119         if (id)
 120                 udev->quirks = (u32)(id->driver_info);
 121         if (udev->quirks)
 122                 dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
 123                                 udev->quirks);
 124
 125         /* By default, disable autosuspend for all non-hubs */
 126 #ifdef  CONFIG_USB_SUSPEND
 127         if (udev->descriptor.bDeviceClass != USB_CLASS_HUB)
 128                 udev->autosuspend_disabled = 1;
 129 #endif
 130
 131 #ifdef  CONFIG_PM
 132         /* Hubs are automatically enabled for USB-PERSIST */
 133         if (udev->descriptor.bDeviceClass == USB_CLASS_HUB)
 134                 udev->persist_enabled = 1;
 135 #else
 136         /* In the absense of PM, we can safely enable USB-PERSIST
 137          * for all devices.  It will affect things like hub resets
 138          * and EMF-related port disables.
 139          */
 140         if (!(udev->quirks & USB_QUIRK_RESET_MORPHS))
 141                 udev->persist_enabled = 1;
 142 #endif  /* CONFIG_PM */
 143 }