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         /* HP 5300/5370C scanner */
  32         { USB_DEVICE(0x03f0, 0x0701), .driver_info = USB_QUIRK_STRING_FETCH_255 },
  33         /* Benq S2W 3300U */
  34         { USB_DEVICE(0x04a5, 0x20b0), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  35         /* Canon, Inc. CanoScan N650U/N656U */
  36         { USB_DEVICE(0x04a9, 0x2206), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  37         /* Canon, Inc. CanoScan N670U/N676U/LiDE 20 */
  38         { USB_DEVICE(0x04a9, 0x220d), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  39         /* old Cannon scanner */
  40         { USB_DEVICE(0x04a9, 0x2220), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  41         /* Seiko Epson Corp. Perfection 1200 */
  42         { USB_DEVICE(0x04b8, 0x0104), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  43         /* Seiko Epson Corp. Perfection 660 */
  44         { USB_DEVICE(0x04b8, 0x0114), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  45         /* Seiko Epson Corp - Perfection 1670 */
  46         { USB_DEVICE(0x04b8, 0x011f), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  47         /* Samsung ML-2510 Series printer */
  48         { USB_DEVICE(0x04e8, 0x327e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  49         /* Elsa MicroLink 56k (V.250) */
  50         { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  51         /* Ultima Electronics Corp.*/
  52         { USB_DEVICE(0x05d8, 0x4005), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  53         /* Agfa Snapscan1212u */
  54         { USB_DEVICE(0x06bd, 0x2061), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  55         /* Umax [hex] Astra 3400U */
  56         { USB_DEVICE(0x1606, 0x0060), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  57
  58         /* Philips PSC805 audio device */
  59         { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },
  60
  61         /* RIM Blackberry */
  62         { USB_DEVICE(0x0fca, 0x0001), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  63         { USB_DEVICE(0x0fca, 0x0004), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  64         { USB_DEVICE(0x0fca, 0x0006), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
  65
  66         { }  /* terminating entry must be last */
  67 };
  68
  69 static void usb_autosuspend_quirk(struct usb_device *udev)
  70 {
  71 #ifdef  CONFIG_USB_SUSPEND
  72         /* disable autosuspend, but allow the user to re-enable it via sysfs */
  73         udev->autosuspend_disabled = 1;
  74 #endif
  75 }
  76
  77 static const struct usb_device_id *find_id(struct usb_device *udev)
  78 {
  79         const struct usb_device_id *id = usb_quirk_list;
  80
  81         for (; id->idVendor || id->bDeviceClass || id->bInterfaceClass ||
  82                         id->driver_info; id++) {
  83                 if (usb_match_device(udev, id))
  84                         return id;
  85         }
  86         return NULL;
  87 }
  88
  89 /*
  90  * Detect any quirks the device has, and do any housekeeping for it if needed.
  91  */
  92 void usb_detect_quirks(struct usb_device *udev)
  93 {
  94         const struct usb_device_id *id = usb_quirk_list;
  95
  96         id = find_id(udev);
  97         if (id)
  98                 udev->quirks = (u32)(id->driver_info);
  99         if (udev->quirks)
 100                 dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
 101                                 udev->quirks);
 102
 103         /* do any special quirk handling here if needed */
 104         if (udev->quirks & USB_QUIRK_NO_AUTOSUSPEND)
 105                 usb_autosuspend_quirk(udev);
 106 }