drivers/usb/storage/usual-tables.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Driver for USB Mass Storage devices
   4  * Usual Tables File for usb-storage and libusual
   5  *
   6  * Copyright (C) 2009 Alan Stern (stern@rowland.harvard.edu)
   7  */
   8
   9 #include <linux/kernel.h>
  10 #include <linux/module.h>
  11 #include <linux/usb.h>
  12 #include <linux/usb_usual.h>
  13
  14
  15 /*
  16  * The table of devices
  17  */
  18 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
  19                     vendorName, productName, useProtocol, useTransport, \
  20                     initFunction, flags) \
  21 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
  22   .driver_info = (kernel_ulong_t)(flags) }
  23
  24 #define COMPLIANT_DEV   UNUSUAL_DEV
  25
  26 #define USUAL_DEV(useProto, useTrans) \
  27 { USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, useProto, useTrans) }
  28
  29 const struct usb_device_id usb_storage_usb_ids[] = {
  30 #       include "unusual_devs.h"
  31         { }             /* Terminating entry */
  32 };
  33 MODULE_DEVICE_TABLE(usb, usb_storage_usb_ids);
  34
  35 #undef UNUSUAL_DEV
  36 #undef COMPLIANT_DEV
  37 #undef USUAL_DEV
  38
  39 /*
  40  * The table of devices to ignore
  41  */
  42 struct ignore_entry {
  43         u16     vid, pid, bcdmin, bcdmax;
  44 };
  45
  46 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
  47                     vendorName, productName, useProtocol, useTransport, \
  48                     initFunction, flags) \
  49 {                                       \
  50         .vid    = id_vendor,            \
  51         .pid    = id_product,           \
  52         .bcdmin = bcdDeviceMin,         \
  53         .bcdmax = bcdDeviceMax,         \
  54 }
  55
  56 static const struct ignore_entry ignore_ids[] = {
  57 #       include "unusual_alauda.h"
  58 #       include "unusual_cypress.h"
  59 #       include "unusual_datafab.h"
  60 #       include "unusual_ene_ub6250.h"
  61 #       include "unusual_freecom.h"
  62 #       include "unusual_isd200.h"
  63 #       include "unusual_jumpshot.h"
  64 #       include "unusual_karma.h"
  65 #       include "unusual_onetouch.h"
  66 #       include "unusual_realtek.h"
  67 #       include "unusual_sddr09.h"
  68 #       include "unusual_sddr55.h"
  69 #       include "unusual_usbat.h"
  70         { }             /* Terminating entry */
  71 };
  72
  73 #undef UNUSUAL_DEV
  74
  75 /* Return an error if a device is in the ignore_ids list */
  76 int usb_usual_ignore_device(struct usb_interface *intf)
  77 {
  78         struct usb_device *udev;
  79         unsigned vid, pid, bcd;
  80         const struct ignore_entry *p;
  81
  82         udev = interface_to_usbdev(intf);
  83         vid = le16_to_cpu(udev->descriptor.idVendor);
  84         pid = le16_to_cpu(udev->descriptor.idProduct);
  85         bcd = le16_to_cpu(udev->descriptor.bcdDevice);
  86
  87         for (p = ignore_ids; p->vid; ++p) {
  88                 if (p->vid == vid && p->pid == pid &&
  89                                 p->bcdmin <= bcd && p->bcdmax >= bcd)
  90                         return -ENXIO;
  91         }
  92         return 0;
  93 }