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
 11static 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
 41static 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