drivers/usb/storage/usual-tables.c

   1 /* Driver for USB Mass Storage devices
   2  * Usual Tables File for usb-storage and libusual
   3  *
   4  * Copyright (C) 2009 Alan Stern (stern@rowland.harvard.edu)
   5  *
   6  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
   7  * information about this driver.
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by the
  11  * Free Software Foundation; either version 2, or (at your option) any
  12  * later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 #include <linux/kernel.h>
  25 #include <linux/module.h>
  26 #include <linux/usb.h>
  27 #include <linux/usb_usual.h>
  28
  29
  30 /*
  31  * The table of devices
  32  */
  33 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
  34                     vendorName, productName, useProtocol, useTransport, \
  35                     initFunction, flags) \
  36 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
  37   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
  38
  39 #define COMPLIANT_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
  40                     vendorName, productName, useProtocol, useTransport, \
  41                     initFunction, flags) \
  42 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
  43   .driver_info = (flags) }
  44
  45 #define USUAL_DEV(useProto, useTrans, useType) \
  46 { USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, useProto, useTrans), \
  47   .driver_info = ((useType)<<24) }
  48
  49 struct usb_device_id usb_storage_usb_ids[] = {
  50 #       include "unusual_devs.h"
  51         { }             /* Terminating entry */
  52 };
  53 EXPORT_SYMBOL_GPL(usb_storage_usb_ids);
  54
  55 MODULE_DEVICE_TABLE(usb, usb_storage_usb_ids);
  56
  57 #undef UNUSUAL_DEV
  58 #undef COMPLIANT_DEV
  59 #undef USUAL_DEV
  60
  61
  62 /*
  63  * The table of devices to ignore
  64  */
  65 struct ignore_entry {
  66         u16     vid, pid, bcdmin, bcdmax;
  67 };
  68
  69 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
  70                     vendorName, productName, useProtocol, useTransport, \
  71                     initFunction, flags) \
  72 {                                       \
  73         .vid    = id_vendor,            \
  74         .pid    = id_product,           \
  75         .bcdmin = bcdDeviceMin,         \
  76         .bcdmax = bcdDeviceMax,         \
  77 }
  78
  79 static struct ignore_entry ignore_ids[] = {
  80         { }             /* Terminating entry */
  81 };
  82
  83 #undef UNUSUAL_DEV
  84
  85
  86 /* Return an error if a device is in the ignore_ids list */
  87 int usb_usual_ignore_device(struct usb_interface *intf)
  88 {
  89         struct usb_device *udev;
  90         unsigned vid, pid, bcd;
  91         struct ignore_entry *p;
  92
  93         udev = interface_to_usbdev(intf);
  94         vid = le16_to_cpu(udev->descriptor.idVendor);
  95         pid = le16_to_cpu(udev->descriptor.idProduct);
  96         bcd = le16_to_cpu(udev->descriptor.bcdDevice);
  97
  98         for (p = ignore_ids; p->vid; ++p) {
  99                 if (p->vid == vid && p->pid == pid &&
 100                                 p->bcdmin <= bcd && p->bcdmax >= bcd)
 101                         return -ENXIO;
 102         }
 103         return 0;
 104 }
 105 EXPORT_SYMBOL_GPL(usb_usual_ignore_device);