root/drivers/usb/storage/usual-tables.c

DEFINITIONS

1. usb_usual_ignore_device

   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 = (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 /* Define the device is matched with Vendor ID and interface descriptors */
  30 #define UNUSUAL_VENDOR_INTF(id_vendor, cl, sc, pr, \
  31                         vendorName, productName, useProtocol, useTransport, \
  32                         initFunction, flags) \
  33 { \
  34         .match_flags = USB_DEVICE_ID_MATCH_INT_INFO \
  35                                 | USB_DEVICE_ID_MATCH_VENDOR, \
  36         .idVendor    = (id_vendor), \
  37         .bInterfaceClass = (cl), \
  38         .bInterfaceSubClass = (sc), \
  39         .bInterfaceProtocol = (pr), \
  40         .driver_info = (flags) \
  41 }
  42 
  43 struct usb_device_id usb_storage_usb_ids[] = {
  44 #       include "unusual_devs.h"
  45         { }             /* Terminating entry */
  46 };
  47 MODULE_DEVICE_TABLE(usb, usb_storage_usb_ids);
  48 
  49 #undef UNUSUAL_DEV
  50 #undef COMPLIANT_DEV
  51 #undef USUAL_DEV
  52 #undef UNUSUAL_VENDOR_INTF
  53 
  54 /*
  55  * The table of devices to ignore
  56  */
  57 struct ignore_entry {
  58         u16     vid, pid, bcdmin, bcdmax;
  59 };
  60 
  61 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
  62                     vendorName, productName, useProtocol, useTransport, \
  63                     initFunction, flags) \
  64 {                                       \
  65         .vid    = id_vendor,            \
  66         .pid    = id_product,           \
  67         .bcdmin = bcdDeviceMin,         \
  68         .bcdmax = bcdDeviceMax,         \
  69 }
  70 
  71 static struct ignore_entry ignore_ids[] = {
  72 #       include "unusual_alauda.h"
  73 #       include "unusual_cypress.h"
  74 #       include "unusual_datafab.h"
  75 #       include "unusual_ene_ub6250.h"
  76 #       include "unusual_freecom.h"
  77 #       include "unusual_isd200.h"
  78 #       include "unusual_jumpshot.h"
  79 #       include "unusual_karma.h"
  80 #       include "unusual_onetouch.h"
  81 #       include "unusual_realtek.h"
  82 #       include "unusual_sddr09.h"
  83 #       include "unusual_sddr55.h"
  84 #       include "unusual_usbat.h"
  85         { }             /* Terminating entry */
  86 };
  87 
  88 #undef UNUSUAL_DEV
  89 
  90 /* Return an error if a device is in the ignore_ids list */
  91 int usb_usual_ignore_device(struct usb_interface *intf)
  92 {
  93         struct usb_device *udev;
  94         unsigned vid, pid, bcd;
  95         struct ignore_entry *p;
  96 
  97         udev = interface_to_usbdev(intf);
  98         vid = le16_to_cpu(udev->descriptor.idVendor);
  99         pid = le16_to_cpu(udev->descriptor.idProduct);
 100         bcd = le16_to_cpu(udev->descriptor.bcdDevice);
 101 
 102         for (p = ignore_ids; p->vid; ++p) {
 103                 if (p->vid == vid && p->pid == pid &&
 104                                 p->bcdmin <= bcd && p->bcdmax >= bcd)
 105                         return -ENXIO;
 106         }
 107         return 0;
 108 }