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
103