Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 1 | /* |
| 2 | * USB HID quirks support for Linux |
| 3 | * |
| 4 | * Copyright (c) 1999 Andreas Gal |
| 5 | * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> |
| 6 | * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc |
| 7 | * Copyright (c) 2006-2007 Jiri Kosina |
| 8 | * Copyright (c) 2007 Paul Walmsley |
| 9 | */ |
| 10 | |
| 11 | /* |
| 12 | * This program is free software; you can redistribute it and/or modify it |
| 13 | * under the terms of the GNU General Public License as published by the Free |
| 14 | * Software Foundation; either version 2 of the License, or (at your option) |
| 15 | * any later version. |
| 16 | */ |
| 17 | |
| 18 | #include <linux/hid.h> |
| 19 | |
Jiri Slaby | 990436a | 2008-06-04 11:02:56 +0200 | [diff] [blame] | 20 | #include "../hid-ids.h" |
Guryanov Dmitry | a32bcc4 | 2008-03-10 03:08:58 -0700 | [diff] [blame] | 21 | |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 22 | /* |
| 23 | * Alphabetically sorted blacklist by quirk type. |
| 24 | */ |
| 25 | |
| 26 | static const struct hid_blacklist { |
| 27 | __u16 idVendor; |
| 28 | __u16 idProduct; |
| 29 | __u32 quirks; |
| 30 | } hid_blacklist[] = { |
| 31 | |
| 32 | { USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_7 }, |
Pavel Troller | c80e5ff | 2007-10-29 11:13:46 +0100 | [diff] [blame] | 33 | { USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D, HID_QUIRK_2WHEEL_MOUSE_HACK_B8 }, |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 34 | |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 35 | { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD }, |
| 36 | { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD }, |
| 37 | { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD }, |
| 38 | { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD }, |
Julien Eyries | 1b3ebe9 | 2007-06-12 10:12:40 +0200 | [diff] [blame] | 39 | { USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR, HID_QUIRK_MULTI_INPUT }, |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 40 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, |
| 41 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, |
| 42 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, |
Andrew Burton | c9bde7a | 2008-03-03 10:49:59 +0100 | [diff] [blame] | 43 | { USB_VENDOR_ID_NATSU, USB_DEVICE_ID_NATSU_GAMEPAD, HID_QUIRK_BADPAD }, |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 44 | { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD }, |
| 45 | { USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD }, |
| 46 | { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD }, |
Jiri Kosina | 2c3e3bf | 2008-07-01 12:35:16 +0200 | [diff] [blame] | 47 | |
Pekka Sarnila | f345c37 | 2008-03-06 13:23:14 +0100 | [diff] [blame] | 48 | { USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL }, |
| 49 | |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 50 | { USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM, HID_QUIRK_HIDDEV }, |
Robert Schedel | efa0f16 | 2008-04-11 09:21:48 +0200 | [diff] [blame] | 51 | { USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE, HID_QUIRK_HIDDEV | HID_QUIRK_IGNORE_HIDINPUT }, |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 52 | |
Jiri Kosina | 36ccaad6 | 2007-11-26 13:18:00 +0100 | [diff] [blame] | 53 | { USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193, HID_QUIRK_HWHEEL_WHEEL_INVERT }, |
| 54 | |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 55 | { USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS }, |
| 56 | { USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT }, |
| 57 | |
Bastien Nocera | 0887b4c | 2007-11-28 16:34:53 +0100 | [diff] [blame] | 58 | { USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER, HID_QUIRK_SONY_PS3_CONTROLLER | HID_QUIRK_HIDDEV }, |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 59 | |
| 60 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET }, |
| 61 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET }, |
| 62 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET }, |
| 63 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET }, |
| 64 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET }, |
Pete Zaitcev | 02008fa | 2008-03-20 10:14:02 +0100 | [diff] [blame] | 65 | { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET }, |
Mike Crowe | d500d11 | 2007-09-14 10:18:07 +0200 | [diff] [blame] | 66 | { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET }, |
Jiri Kosina | ea9a4a8 | 2007-06-19 14:09:14 +0200 | [diff] [blame] | 67 | { USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE, HID_QUIRK_NOGET }, |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 68 | { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET }, |
| 69 | { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET }, |
Jiri Kosina | 3e52a05 | 2008-04-04 16:50:12 +0200 | [diff] [blame] | 70 | { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS }, |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 71 | { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, |
| 72 | |
| 73 | { USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, |
| 74 | |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 75 | { USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_W7658, HID_QUIRK_RESET_LEDS }, |
| 76 | |
Jiri Kosina | ea9a4a8 | 2007-06-19 14:09:14 +0200 | [diff] [blame] | 77 | { 0, 0 } |
| 78 | }; |
| 79 | |
| 80 | /* Quirks for devices which require report descriptor fixup go here */ |
| 81 | static const struct hid_rdesc_blacklist { |
| 82 | __u16 idVendor; |
| 83 | __u16 idProduct; |
| 84 | __u32 quirks; |
| 85 | } hid_rdesc_blacklist[] = { |
| 86 | |
| 87 | { USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION, HID_QUIRK_RDESC_CYMOTION }, |
| 88 | |
Jiri Kosina | af9e0ea | 2007-11-14 12:13:26 +0100 | [diff] [blame] | 89 | { USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E, HID_QUIRK_RDESC_BUTTON_CONSUMER }, |
| 90 | |
Jiri Kosina | ea9a4a8 | 2007-06-19 14:09:14 +0200 | [diff] [blame] | 91 | { USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE, HID_QUIRK_RDESC_PETALYNX }, |
| 92 | |
Robert Schedel | fe56caa | 2007-12-26 00:57:40 +0100 | [diff] [blame] | 93 | { USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE, HID_QUIRK_RDESC_SAMSUNG_REMOTE }, |
| 94 | |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 95 | { 0, 0 } |
| 96 | }; |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 97 | |
| 98 | /* Dynamic HID quirks list - specified at runtime */ |
| 99 | struct quirks_list_struct { |
| 100 | struct hid_blacklist hid_bl_item; |
| 101 | struct list_head node; |
| 102 | }; |
| 103 | |
| 104 | static LIST_HEAD(dquirks_list); |
| 105 | static DECLARE_RWSEM(dquirks_rwsem); |
| 106 | |
| 107 | /* Runtime ("dynamic") quirks manipulation functions */ |
| 108 | |
Paul Walmsley | 8222fbe | 2007-04-19 13:45:57 +0200 | [diff] [blame] | 109 | /** |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 110 | * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device |
| 111 | * @idVendor: the 16-bit USB vendor ID, in native byteorder |
| 112 | * @idProduct: the 16-bit USB product ID, in native byteorder |
| 113 | * |
| 114 | * Description: |
| 115 | * Scans dquirks_list for a matching dynamic quirk and returns |
| 116 | * the pointer to the relevant struct hid_blacklist if found. |
| 117 | * Must be called with a read lock held on dquirks_rwsem. |
| 118 | * |
| 119 | * Returns: NULL if no quirk found, struct hid_blacklist * if found. |
| 120 | */ |
| 121 | static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor, |
| 122 | const u16 idProduct) |
Paul Walmsley | 8222fbe | 2007-04-19 13:45:57 +0200 | [diff] [blame] | 123 | { |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 124 | struct quirks_list_struct *q; |
| 125 | struct hid_blacklist *bl_entry = NULL; |
| 126 | |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 127 | list_for_each_entry(q, &dquirks_list, node) { |
| 128 | if (q->hid_bl_item.idVendor == idVendor && |
| 129 | q->hid_bl_item.idProduct == idProduct) { |
| 130 | bl_entry = &q->hid_bl_item; |
| 131 | break; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | if (bl_entry != NULL) |
Jiri Kosina | 58037eb | 2007-05-30 15:07:13 +0200 | [diff] [blame] | 136 | dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n", |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 137 | bl_entry->quirks, bl_entry->idVendor, |
| 138 | bl_entry->idProduct); |
| 139 | |
| 140 | return bl_entry; |
| 141 | } |
| 142 | |
| 143 | |
| 144 | /** |
| 145 | * usbhid_modify_dquirk: add/replace a HID quirk |
| 146 | * @idVendor: the 16-bit USB vendor ID, in native byteorder |
| 147 | * @idProduct: the 16-bit USB product ID, in native byteorder |
| 148 | * @quirks: the u32 quirks value to add/replace |
| 149 | * |
| 150 | * Description: |
| 151 | * If an dynamic quirk exists in memory for this (idVendor, |
| 152 | * idProduct) pair, replace its quirks value with what was |
| 153 | * provided. Otherwise, add the quirk to the dynamic quirks list. |
| 154 | * |
| 155 | * Returns: 0 OK, -error on failure. |
| 156 | */ |
Adrian Bunk | abdff0f | 2008-03-31 01:53:56 +0200 | [diff] [blame] | 157 | static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct, |
| 158 | const u32 quirks) |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 159 | { |
| 160 | struct quirks_list_struct *q_new, *q; |
| 161 | int list_edited = 0; |
| 162 | |
| 163 | if (!idVendor) { |
Jiri Kosina | 58037eb | 2007-05-30 15:07:13 +0200 | [diff] [blame] | 164 | dbg_hid("Cannot add a quirk with idVendor = 0\n"); |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 165 | return -EINVAL; |
| 166 | } |
| 167 | |
| 168 | q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL); |
| 169 | if (!q_new) { |
Jiri Kosina | 58037eb | 2007-05-30 15:07:13 +0200 | [diff] [blame] | 170 | dbg_hid("Could not allocate quirks_list_struct\n"); |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 171 | return -ENOMEM; |
| 172 | } |
| 173 | |
| 174 | q_new->hid_bl_item.idVendor = idVendor; |
| 175 | q_new->hid_bl_item.idProduct = idProduct; |
| 176 | q_new->hid_bl_item.quirks = quirks; |
| 177 | |
| 178 | down_write(&dquirks_rwsem); |
| 179 | |
| 180 | list_for_each_entry(q, &dquirks_list, node) { |
| 181 | |
| 182 | if (q->hid_bl_item.idVendor == idVendor && |
| 183 | q->hid_bl_item.idProduct == idProduct) { |
| 184 | |
| 185 | list_replace(&q->node, &q_new->node); |
| 186 | kfree(q); |
| 187 | list_edited = 1; |
| 188 | break; |
| 189 | |
| 190 | } |
| 191 | |
| 192 | } |
| 193 | |
| 194 | if (!list_edited) |
| 195 | list_add_tail(&q_new->node, &dquirks_list); |
| 196 | |
| 197 | up_write(&dquirks_rwsem); |
| 198 | |
| 199 | return 0; |
| 200 | } |
| 201 | |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 202 | /** |
| 203 | * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory |
| 204 | * |
| 205 | * Description: |
| 206 | * Free all memory associated with dynamic quirks - called before |
| 207 | * module unload. |
| 208 | * |
| 209 | */ |
| 210 | static void usbhid_remove_all_dquirks(void) |
| 211 | { |
| 212 | struct quirks_list_struct *q, *temp; |
| 213 | |
| 214 | down_write(&dquirks_rwsem); |
| 215 | list_for_each_entry_safe(q, temp, &dquirks_list, node) { |
| 216 | list_del(&q->node); |
| 217 | kfree(q); |
| 218 | } |
| 219 | up_write(&dquirks_rwsem); |
| 220 | |
| 221 | } |
| 222 | |
Paul Walmsley | 876b927 | 2007-04-19 14:56:12 +0200 | [diff] [blame] | 223 | /** |
| 224 | * usbhid_quirks_init: apply USB HID quirks specified at module load time |
| 225 | */ |
| 226 | int usbhid_quirks_init(char **quirks_param) |
| 227 | { |
| 228 | u16 idVendor, idProduct; |
| 229 | u32 quirks; |
| 230 | int n = 0, m; |
| 231 | |
| 232 | for (; quirks_param[n] && n < MAX_USBHID_BOOT_QUIRKS; n++) { |
| 233 | |
| 234 | m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x", |
| 235 | &idVendor, &idProduct, &quirks); |
| 236 | |
| 237 | if (m != 3 || |
| 238 | usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) { |
| 239 | printk(KERN_WARNING |
| 240 | "Could not parse HID quirk module param %s\n", |
| 241 | quirks_param[n]); |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | return 0; |
| 246 | } |
| 247 | |
| 248 | /** |
| 249 | * usbhid_quirks_exit: release memory associated with dynamic_quirks |
| 250 | * |
| 251 | * Description: |
| 252 | * Release all memory associated with dynamic quirks. Called upon |
| 253 | * module unload. |
| 254 | * |
| 255 | * Returns: nothing |
| 256 | */ |
| 257 | void usbhid_quirks_exit(void) |
| 258 | { |
| 259 | usbhid_remove_all_dquirks(); |
| 260 | } |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 261 | |
| 262 | /** |
| 263 | * usbhid_exists_squirk: return any static quirks for a USB HID device |
| 264 | * @idVendor: the 16-bit USB vendor ID, in native byteorder |
| 265 | * @idProduct: the 16-bit USB product ID, in native byteorder |
| 266 | * |
| 267 | * Description: |
| 268 | * Given a USB vendor ID and product ID, return a pointer to |
| 269 | * the hid_blacklist entry associated with that device. |
| 270 | * |
| 271 | * Returns: pointer if quirk found, or NULL if no quirks found. |
| 272 | */ |
| 273 | static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor, |
| 274 | const u16 idProduct) |
| 275 | { |
| 276 | const struct hid_blacklist *bl_entry = NULL; |
| 277 | int n = 0; |
Paul Walmsley | 8222fbe | 2007-04-19 13:45:57 +0200 | [diff] [blame] | 278 | |
| 279 | for (; hid_blacklist[n].idVendor; n++) |
| 280 | if (hid_blacklist[n].idVendor == idVendor && |
| 281 | hid_blacklist[n].idProduct == idProduct) |
| 282 | bl_entry = &hid_blacklist[n]; |
| 283 | |
| 284 | if (bl_entry != NULL) |
Jiri Kosina | 58037eb | 2007-05-30 15:07:13 +0200 | [diff] [blame] | 285 | dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n", |
Paul Walmsley | 8222fbe | 2007-04-19 13:45:57 +0200 | [diff] [blame] | 286 | bl_entry->quirks, bl_entry->idVendor, |
| 287 | bl_entry->idProduct); |
| 288 | return bl_entry; |
| 289 | } |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 290 | |
| 291 | /** |
| 292 | * usbhid_lookup_quirk: return any quirks associated with a USB HID device |
| 293 | * @idVendor: the 16-bit USB vendor ID, in native byteorder |
| 294 | * @idProduct: the 16-bit USB product ID, in native byteorder |
| 295 | * |
| 296 | * Description: |
| 297 | * Given a USB vendor ID and product ID, return any quirks associated |
| 298 | * with that device. |
| 299 | * |
| 300 | * Returns: a u32 quirks value. |
| 301 | */ |
| 302 | u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct) |
| 303 | { |
| 304 | u32 quirks = 0; |
Paul Walmsley | 8222fbe | 2007-04-19 13:45:57 +0200 | [diff] [blame] | 305 | const struct hid_blacklist *bl_entry = NULL; |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 306 | |
Jiri Kosina | b8e98f1 | 2007-06-18 17:41:14 +0200 | [diff] [blame] | 307 | /* NCR devices must not be queried for reports */ |
| 308 | if (idVendor == USB_VENDOR_ID_NCR && |
| 309 | idProduct >= USB_DEVICE_ID_NCR_FIRST && |
| 310 | idProduct <= USB_DEVICE_ID_NCR_LAST) |
| 311 | return HID_QUIRK_NOGET; |
| 312 | |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 313 | down_read(&dquirks_rwsem); |
| 314 | bl_entry = usbhid_exists_dquirk(idVendor, idProduct); |
| 315 | if (!bl_entry) |
| 316 | bl_entry = usbhid_exists_squirk(idVendor, idProduct); |
Paul Walmsley | 8222fbe | 2007-04-19 13:45:57 +0200 | [diff] [blame] | 317 | if (bl_entry) |
| 318 | quirks = bl_entry->quirks; |
Paul Walmsley | 8cef908 | 2007-04-19 14:37:44 +0200 | [diff] [blame] | 319 | up_read(&dquirks_rwsem); |
| 320 | |
Paul Walmsley | 2eb5dc3 | 2007-04-19 13:27:04 +0200 | [diff] [blame] | 321 | return quirks; |
| 322 | } |
Paul Walmsley | 8222fbe | 2007-04-19 13:45:57 +0200 | [diff] [blame] | 323 | |
Pascal Terjan | 9f6b372 | 2007-11-26 14:03:52 +0100 | [diff] [blame] | 324 | EXPORT_SYMBOL_GPL(usbhid_lookup_quirk); |
| 325 | |
Jiri Kosina | ea9a4a8 | 2007-06-19 14:09:14 +0200 | [diff] [blame] | 326 | /* |
| 327 | * Cherry Cymotion keyboard have an invalid HID report descriptor, |
| 328 | * that needs fixing before we can parse it. |
| 329 | */ |
| 330 | static void usbhid_fixup_cymotion_descriptor(char *rdesc, int rsize) |
| 331 | { |
| 332 | if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) { |
| 333 | printk(KERN_INFO "Fixing up Cherry Cymotion report descriptor\n"); |
| 334 | rdesc[11] = rdesc[16] = 0xff; |
| 335 | rdesc[12] = rdesc[17] = 0x03; |
| 336 | } |
| 337 | } |
| 338 | |
Robert Schedel | fe56caa | 2007-12-26 00:57:40 +0100 | [diff] [blame] | 339 | /* |
| 340 | * Samsung IrDA remote controller (reports as Cypress USB Mouse). |
| 341 | * |
| 342 | * Vendor specific report #4 has a size of 48 bit, |
| 343 | * and therefore is not accepted when inspecting the descriptors. |
| 344 | * As a workaround we reinterpret the report as: |
| 345 | * Variable type, count 6, size 8 bit, log. maximum 255 |
| 346 | * The burden to reconstruct the data is moved into user space. |
| 347 | */ |
| 348 | static void usbhid_fixup_samsung_irda_descriptor(unsigned char *rdesc, |
| 349 | int rsize) |
| 350 | { |
| 351 | if (rsize >= 182 && rdesc[175] == 0x25 |
| 352 | && rdesc[176] == 0x40 |
| 353 | && rdesc[177] == 0x75 |
| 354 | && rdesc[178] == 0x30 |
| 355 | && rdesc[179] == 0x95 |
| 356 | && rdesc[180] == 0x01 |
| 357 | && rdesc[182] == 0x40) { |
| 358 | printk(KERN_INFO "Fixing up Samsung IrDA report descriptor\n"); |
| 359 | rdesc[176] = 0xff; |
| 360 | rdesc[178] = 0x08; |
| 361 | rdesc[180] = 0x06; |
| 362 | rdesc[182] = 0x42; |
| 363 | } |
| 364 | } |
| 365 | |
Jiri Kosina | ea9a4a8 | 2007-06-19 14:09:14 +0200 | [diff] [blame] | 366 | /* Petalynx Maxter Remote has maximum for consumer page set too low */ |
| 367 | static void usbhid_fixup_petalynx_descriptor(unsigned char *rdesc, int rsize) |
| 368 | { |
| 369 | if (rsize >= 60 && rdesc[39] == 0x2a |
| 370 | && rdesc[40] == 0xf5 |
| 371 | && rdesc[41] == 0x00 |
| 372 | && rdesc[59] == 0x26 |
| 373 | && rdesc[60] == 0xf9 |
| 374 | && rdesc[61] == 0x00) { |
| 375 | printk(KERN_INFO "Fixing up Petalynx Maxter Remote report descriptor\n"); |
| 376 | rdesc[60] = 0xfa; |
| 377 | rdesc[40] = 0xfa; |
| 378 | } |
| 379 | } |
| 380 | |
Jiri Kosina | af9e0ea | 2007-11-14 12:13:26 +0100 | [diff] [blame] | 381 | static void usbhid_fixup_button_consumer_descriptor(unsigned char *rdesc, int rsize) |
| 382 | { |
| 383 | if (rsize >= 30 && rdesc[29] == 0x05 |
| 384 | && rdesc[30] == 0x09) { |
| 385 | printk(KERN_INFO "Fixing up button/consumer in HID report descriptor\n"); |
| 386 | rdesc[30] = 0x0c; |
| 387 | } |
| 388 | } |
Jiri Kosina | ea9a4a8 | 2007-06-19 14:09:14 +0200 | [diff] [blame] | 389 | |
| 390 | static void __usbhid_fixup_report_descriptor(__u32 quirks, char *rdesc, unsigned rsize) |
| 391 | { |
| 392 | if ((quirks & HID_QUIRK_RDESC_CYMOTION)) |
| 393 | usbhid_fixup_cymotion_descriptor(rdesc, rsize); |
| 394 | |
Jiri Kosina | ea9a4a8 | 2007-06-19 14:09:14 +0200 | [diff] [blame] | 395 | if (quirks & HID_QUIRK_RDESC_PETALYNX) |
| 396 | usbhid_fixup_petalynx_descriptor(rdesc, rsize); |
Tomoya Adachi | 08f0617 | 2007-10-03 23:27:49 +0200 | [diff] [blame] | 397 | |
Jiri Kosina | af9e0ea | 2007-11-14 12:13:26 +0100 | [diff] [blame] | 398 | if (quirks & HID_QUIRK_RDESC_BUTTON_CONSUMER) |
| 399 | usbhid_fixup_button_consumer_descriptor(rdesc, rsize); |
Robert Schedel | fe56caa | 2007-12-26 00:57:40 +0100 | [diff] [blame] | 400 | |
| 401 | if (quirks & HID_QUIRK_RDESC_SAMSUNG_REMOTE) |
| 402 | usbhid_fixup_samsung_irda_descriptor(rdesc, rsize); |
Jiri Kosina | ea9a4a8 | 2007-06-19 14:09:14 +0200 | [diff] [blame] | 403 | } |
| 404 | |
| 405 | /** |
| 406 | * usbhid_fixup_report_descriptor: check if report descriptor needs fixup |
| 407 | * |
| 408 | * Description: |
| 409 | * Walks the hid_rdesc_blacklist[] array and checks whether the device |
| 410 | * is known to have broken report descriptor that needs to be fixed up |
| 411 | * prior to entering the HID parser |
| 412 | * |
| 413 | * Returns: nothing |
| 414 | */ |
| 415 | void usbhid_fixup_report_descriptor(const u16 idVendor, const u16 idProduct, |
| 416 | char *rdesc, unsigned rsize, char **quirks_param) |
| 417 | { |
| 418 | int n, m; |
| 419 | u16 paramVendor, paramProduct; |
| 420 | u32 quirks; |
| 421 | |
| 422 | /* static rdesc quirk entries */ |
| 423 | for (n = 0; hid_rdesc_blacklist[n].idVendor; n++) |
| 424 | if (hid_rdesc_blacklist[n].idVendor == idVendor && |
| 425 | hid_rdesc_blacklist[n].idProduct == idProduct) |
| 426 | __usbhid_fixup_report_descriptor(hid_rdesc_blacklist[n].quirks, |
| 427 | rdesc, rsize); |
| 428 | |
| 429 | /* runtime rdesc quirk entries handling */ |
| 430 | for (n = 0; quirks_param[n] && n < MAX_USBHID_BOOT_QUIRKS; n++) { |
| 431 | m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x", |
| 432 | ¶mVendor, ¶mProduct, &quirks); |
| 433 | |
| 434 | if (m != 3) |
| 435 | printk(KERN_WARNING |
| 436 | "Could not parse HID quirk module param %s\n", |
| 437 | quirks_param[n]); |
| 438 | else if (paramVendor == idVendor && paramProduct == idProduct) |
| 439 | __usbhid_fixup_report_descriptor(quirks, rdesc, rsize); |
| 440 | } |
Jiri Kosina | ea9a4a8 | 2007-06-19 14:09:14 +0200 | [diff] [blame] | 441 | } |