1/* 2 * drivers/usb/core/otg_whitelist.h 3 * 4 * Copyright (C) 2004 Texas Instruments 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 */ 11 12/* 13 * This OTG Whitelist is the OTG "Targeted Peripheral List". It should 14 * mostly use of USB_DEVICE() or USB_DEVICE_VER() entries.. 15 * 16 * YOU _SHOULD_ CHANGE THIS LIST TO MATCH YOUR PRODUCT AND ITS TESTING! 17 */ 18 19static struct usb_device_id whitelist_table [] = { 20 21/* hubs are optional in OTG, but very handy ... */ 22{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 0), }, 23{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 1), }, 24 25#ifdef CONFIG_USB_PRINTER /* ignoring nonstatic linkage! */ 26{ USB_DEVICE_INFO(7, 1, 1) }, 27{ USB_DEVICE_INFO(7, 1, 2) }, 28{ USB_DEVICE_INFO(7, 1, 3) }, 29#endif 30 31#ifdef CONFIG_USB_NET_CDCETHER 32/* Linux-USB CDC Ethernet gadget */ 33{ USB_DEVICE(0x0525, 0xa4a1), }, 34/* Linux-USB CDC Ethernet + RNDIS gadget */ 35{ USB_DEVICE(0x0525, 0xa4a2), }, 36#endif 37 38#if defined(CONFIG_USB_TEST) || defined(CONFIG_USB_TEST_MODULE) 39/* gadget zero, for testing */ 40{ USB_DEVICE(0x0525, 0xa4a0), }, 41#endif 42 43{ } /* Terminating entry */ 44}; 45 46static int is_targeted(struct usb_device *dev) 47{ 48 struct usb_device_id *id = whitelist_table; 49 50 /* possible in developer configs only! */ 51 if (!dev->bus->otg_port) 52 return 1; 53 54 /* HNP test device is _never_ targeted (see OTG spec 6.6.6) */ 55 if ((le16_to_cpu(dev->descriptor.idVendor) == 0x1a0a && 56 le16_to_cpu(dev->descriptor.idProduct) == 0xbadd)) 57 return 0; 58 59 /* NOTE: can't use usb_match_id() since interface caches 60 * aren't set up yet. this is cut/paste from that code. 61 */ 62 for (id = whitelist_table; id->match_flags; id++) { 63 if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) && 64 id->idVendor != le16_to_cpu(dev->descriptor.idVendor)) 65 continue; 66 67 if ((id->match_flags & USB_DEVICE_ID_MATCH_PRODUCT) && 68 id->idProduct != le16_to_cpu(dev->descriptor.idProduct)) 69 continue; 70 71 /* No need to test id->bcdDevice_lo != 0, since 0 is never 72 greater than any unsigned number. */ 73 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO) && 74 (id->bcdDevice_lo > le16_to_cpu(dev->descriptor.bcdDevice))) 75 continue; 76 77 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI) && 78 (id->bcdDevice_hi < le16_to_cpu(dev->descriptor.bcdDevice))) 79 continue; 80 81 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_CLASS) && 82 (id->bDeviceClass != dev->descriptor.bDeviceClass)) 83 continue; 84 85 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_SUBCLASS) && 86 (id->bDeviceSubClass != dev->descriptor.bDeviceSubClass)) 87 continue; 88 89 if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_PROTOCOL) && 90 (id->bDeviceProtocol != dev->descriptor.bDeviceProtocol)) 91 continue; 92 93 return 1; 94 } 95 96 /* add other match criteria here ... */ 97 98 99 /* OTG MESSAGE: report errors here, customize to match your product */ 100 dev_err(&dev->dev, "device v%04x p%04x is not supported\n", 101 le16_to_cpu(dev->descriptor.idVendor), 102 le16_to_cpu(dev->descriptor.idProduct)); 103#ifdef CONFIG_USB_OTG_WHITELIST 104 return 0; 105#else 106 return 1; 107#endif 108} 109