drivers/usb/core/otg_productlist.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /* Copyright (C) 2004 Texas Instruments */
   3
   4 /*
   5  * This OTG and Embedded Host list is "Targeted Peripheral List".
   6  * It should mostly use of USB_DEVICE() or USB_DEVICE_VER() entries..
   7  *
   8  * YOU _SHOULD_ CHANGE THIS LIST TO MATCH YOUR PRODUCT AND ITS TESTING!
   9  */
  10
  11 static struct usb_device_id productlist_table[] = {
  12
  13 /* hubs are optional in OTG, but very handy ... */
  14 { USB_DEVICE_INFO(USB_CLASS_HUB, 0, 0), },
  15 { USB_DEVICE_INFO(USB_CLASS_HUB, 0, 1), },
  16
  17 #ifdef  CONFIG_USB_PRINTER              /* ignoring nonstatic linkage! */
  18 /* FIXME actually, printers are NOT supposed to use device classes;
  19  * they're supposed to use interface classes...
  20  */
  21 { USB_DEVICE_INFO(7, 1, 1) },
  22 { USB_DEVICE_INFO(7, 1, 2) },
  23 { USB_DEVICE_INFO(7, 1, 3) },
  24 #endif
  25
  26 #ifdef  CONFIG_USB_NET_CDCETHER
  27 /* Linux-USB CDC Ethernet gadget */
  28 { USB_DEVICE(0x0525, 0xa4a1), },
  29 /* Linux-USB CDC Ethernet + RNDIS gadget */
  30 { USB_DEVICE(0x0525, 0xa4a2), },
  31 #endif
  32
  33 #if     IS_ENABLED(CONFIG_USB_TEST)
  34 /* gadget zero, for testing */
  35 { USB_DEVICE(0x0525, 0xa4a0), },
  36 #endif
  37
  38 { }     /* Terminating entry */
  39 };
  40
  41 static int is_targeted(struct usb_device *dev)
  42 {
  43         struct usb_device_id    *id = productlist_table;
  44
  45         /* HNP test device is _never_ targeted (see OTG spec 6.6.6) */
  46         if ((le16_to_cpu(dev->descriptor.idVendor) == 0x1a0a &&
  47              le16_to_cpu(dev->descriptor.idProduct) == 0xbadd))
  48                 return 0;
  49
  50         /* OTG PET device is always targeted (see OTG 2.0 ECN 6.4.2) */
  51         if ((le16_to_cpu(dev->descriptor.idVendor) == 0x1a0a &&
  52              le16_to_cpu(dev->descriptor.idProduct) == 0x0200))
  53                 return 1;
  54
  55         /* NOTE: can't use usb_match_id() since interface caches
  56          * aren't set up yet. this is cut/paste from that code.
  57          */
  58         for (id = productlist_table; id->match_flags; id++) {
  59                 if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
  60                     id->idVendor != le16_to_cpu(dev->descriptor.idVendor))
  61                         continue;
  62
  63                 if ((id->match_flags & USB_DEVICE_ID_MATCH_PRODUCT) &&
  64                     id->idProduct != le16_to_cpu(dev->descriptor.idProduct))
  65                         continue;
  66
  67                 /* No need to test id->bcdDevice_lo != 0, since 0 is never
  68                    greater than any unsigned number. */
  69                 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO) &&
  70                     (id->bcdDevice_lo > le16_to_cpu(dev->descriptor.bcdDevice)))
  71                         continue;
  72
  73                 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI) &&
  74                     (id->bcdDevice_hi < le16_to_cpu(dev->descriptor.bcdDevice)))
  75                         continue;
  76
  77                 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_CLASS) &&
  78                     (id->bDeviceClass != dev->descriptor.bDeviceClass))
  79                         continue;
  80
  81                 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_SUBCLASS) &&
  82                     (id->bDeviceSubClass != dev->descriptor.bDeviceSubClass))
  83                         continue;
  84
  85                 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_PROTOCOL) &&
  86                     (id->bDeviceProtocol != dev->descriptor.bDeviceProtocol))
  87                         continue;
  88
  89                 return 1;
  90         }
  91
  92         /* add other match criteria here ... */
  93
  94
  95         /* OTG MESSAGE: report errors here, customize to match your product */
  96         dev_err(&dev->dev, "device v%04x p%04x is not supported\n",
  97                 le16_to_cpu(dev->descriptor.idVendor),
  98                 le16_to_cpu(dev->descriptor.idProduct));
  99
 100         return 0;
 101 }
 102