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2eb5dc30 PW |
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> | |
ec37d321 | 19 | #include <linux/export.h> |
5a0e3ad6 | 20 | #include <linux/slab.h> |
2eb5dc30 | 21 | |
990436a7 | 22 | #include "../hid-ids.h" |
a32bcc45 | 23 | |
2eb5dc30 PW |
24 | /* |
25 | * Alphabetically sorted blacklist by quirk type. | |
26 | */ | |
27 | ||
28 | static const struct hid_blacklist { | |
29 | __u16 idVendor; | |
30 | __u16 idProduct; | |
31 | __u32 quirks; | |
32 | } hid_blacklist[] = { | |
2eb5dc30 PW |
33 | { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD }, |
34 | { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD }, | |
35 | { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD }, | |
36 | { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD }, | |
d34c4aa4 | 37 | { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER, HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET }, |
1f45e324 | 38 | { USB_VENDOR_ID_MOJO, USB_DEVICE_ID_RETRO_ADAPTER, HID_QUIRK_MULTI_INPUT }, |
2eb5dc30 PW |
39 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, |
40 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, | |
41 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, | |
c9bde7ad | 42 | { USB_VENDOR_ID_NATSU, USB_DEVICE_ID_NATSU_GAMEPAD, HID_QUIRK_BADPAD }, |
2eb5dc30 | 43 | { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD }, |
9db630b4 | 44 | { USB_VENDOR_ID_NEXTWINDOW, USB_DEVICE_ID_NEXTWINDOW_TOUCHSCREEN, HID_QUIRK_MULTI_INPUT}, |
2eb5dc30 PW |
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 }, | |
2c3e3bfb | 47 | |
f345c37c PS |
48 | { USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL }, |
49 | ||
cd07655e | 50 | { USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II, HID_QUIRK_MULTI_INPUT }, |
8127f4e8 | 51 | { USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH, HID_QUIRK_MULTI_INPUT }, |
d90b1cf0 | 52 | { USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH_2968, HID_QUIRK_MULTI_INPUT }, |
6d1db077 | 53 | { USB_VENDOR_ID_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD, HID_QUIRK_MULTI_INPUT }, |
2eb5dc30 PW |
54 | { USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS }, |
55 | { USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT }, | |
c2c3489c | 56 | { USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS, HID_QUIRK_MULTI_INPUT }, |
2eb5dc30 | 57 | |
37891abc | 58 | { USB_VENDOR_ID_AIREN, USB_DEVICE_ID_AIREN_SLIMPLUS, HID_QUIRK_NOGET }, |
2eb5dc30 PW |
59 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET }, |
60 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET }, | |
61 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET }, | |
62 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET }, | |
63 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET }, | |
724ed328 | 64 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FIGHTERSTICK, HID_QUIRK_NOGET }, |
b820aabf | 65 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK, HID_QUIRK_NOGET }, |
c8e84646 | 66 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE, HID_QUIRK_NOGET }, |
b820aabf | 67 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE, HID_QUIRK_NOGET }, |
da60325d | 68 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_THROTTLE, HID_QUIRK_NOGET }, |
b820aabf | 69 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS, HID_QUIRK_NOGET }, |
73cdcf56 | 70 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET }, |
8038298f | 71 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET }, |
02008faa | 72 | { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET }, |
bfe3c873 | 73 | { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN, HID_QUIRK_ALWAYS_POLL }, |
29d05c2e | 74 | { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B, HID_QUIRK_ALWAYS_POLL }, |
fa51ee10 | 75 | { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL }, |
1af39588 | 76 | { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL }, |
d500d116 | 77 | { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET }, |
320cde19 | 78 | { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS }, |
2843b673 | 79 | { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET }, |
67ddbb3e | 80 | { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET }, |
f471d948 | 81 | { USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS }, |
29191039 | 82 | { USB_VENDOR_ID_NEXIO, USB_DEVICE_ID_NEXIO_MULTITOUCH_PTI0750, HID_QUIRK_NO_INIT_REPORTS }, |
b8a8f515 | 83 | { USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS }, |
66e54827 JS |
84 | { USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_1610, HID_QUIRK_NOGET }, |
85 | { USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_1640, HID_QUIRK_NOGET }, | |
4980f957 | 86 | { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL }, |
5235166f | 87 | { USB_VENDOR_ID_KYE, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE_ID2, HID_QUIRK_ALWAYS_POLL }, |
b7ea95ff AT |
88 | { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS }, |
89 | { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS }, | |
90 | { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS }, | |
c2c3489c | 91 | { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET }, |
b0be5b3b | 92 | { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001, HID_QUIRK_NOGET }, |
8d31321c | 93 | { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET }, |
3d464d9b | 94 | { USB_VENDOR_ID_REALTEK, USB_DEVICE_ID_REALTEK_READER, HID_QUIRK_NO_INIT_REPORTS }, |
0e050923 | 95 | { USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET }, |
436136ce | 96 | { USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780, HID_QUIRK_NOGET }, |
765e5fbd AK |
97 | { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS9200_TOUCH, HID_QUIRK_NOGET }, |
98 | { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS817_TOUCH, HID_QUIRK_NOGET }, | |
99 | { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS_TS, HID_QUIRK_NO_INIT_REPORTS }, | |
954bb3da | 100 | { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS1030_TOUCH, HID_QUIRK_NOGET }, |
2eb5dc30 | 101 | { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET }, |
4b5730fa JK |
102 | { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET }, |
103 | { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET }, | |
88c687b3 | 104 | { USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN, HID_QUIRK_NOGET }, |
2eb5dc30 | 105 | { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET }, |
25e61613 | 106 | { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT }, |
eff7f270 | 107 | { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT }, |
426409b1 | 108 | { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5, HID_QUIRK_MULTI_INPUT }, |
e23be0a2 | 109 | { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60, HID_QUIRK_MULTI_INPUT }, |
f8a489cc NK |
110 | { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U, HID_QUIRK_MULTI_INPUT }, |
111 | { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U, HID_QUIRK_MULTI_INPUT }, | |
72a46344 | 112 | { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH, HID_QUIRK_MULTI_INPUT }, |
8f1acc32 | 113 | { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH, HID_QUIRK_MULTI_INPUT }, |
d2ee4dd9 | 114 | { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET, HID_QUIRK_MULTI_INPUT }, |
2eb5dc30 PW |
115 | { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, |
116 | ||
66ebf66e | 117 | { USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, |
2eb5dc30 | 118 | |
70c7c9c4 DM |
119 | { USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL, HID_QUIRK_HIDINPUT_FORCE }, |
120 | ||
7cacfa87 | 121 | { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT }, |
b9e4b1e0 | 122 | { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT }, |
f5e42825 | 123 | { USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS }, |
22ca20b2 NK |
124 | { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT }, |
125 | { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT }, | |
9e0bf92c | 126 | { USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS }, |
9ea63c43 | 127 | { USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD, HID_QUIRK_NO_INIT_REPORTS }, |
8171a67d AK |
128 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS1, HID_QUIRK_NO_INIT_REPORTS }, |
129 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS2, HID_QUIRK_NO_INIT_REPORTS }, | |
d8e2e758 | 130 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_HD, HID_QUIRK_NO_INIT_REPORTS }, |
12f508ae | 131 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_QUAD_HD, HID_QUIRK_NO_INIT_REPORTS }, |
2f433083 | 132 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP_V103, HID_QUIRK_NO_INIT_REPORTS }, |
30c6fd42 | 133 | { USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096, HID_QUIRK_NO_INIT_INPUT_REPORTS }, |
9e0bf92c | 134 | |
ea9a4a8b JK |
135 | { 0, 0 } |
136 | }; | |
137 | ||
8cef9082 PW |
138 | /* Dynamic HID quirks list - specified at runtime */ |
139 | struct quirks_list_struct { | |
140 | struct hid_blacklist hid_bl_item; | |
141 | struct list_head node; | |
142 | }; | |
143 | ||
144 | static LIST_HEAD(dquirks_list); | |
145 | static DECLARE_RWSEM(dquirks_rwsem); | |
146 | ||
147 | /* Runtime ("dynamic") quirks manipulation functions */ | |
148 | ||
8222fbe6 | 149 | /** |
8cef9082 PW |
150 | * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device |
151 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
152 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
153 | * | |
154 | * Description: | |
155 | * Scans dquirks_list for a matching dynamic quirk and returns | |
156 | * the pointer to the relevant struct hid_blacklist if found. | |
157 | * Must be called with a read lock held on dquirks_rwsem. | |
158 | * | |
159 | * Returns: NULL if no quirk found, struct hid_blacklist * if found. | |
160 | */ | |
161 | static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor, | |
162 | const u16 idProduct) | |
163 | { | |
164 | struct quirks_list_struct *q; | |
165 | struct hid_blacklist *bl_entry = NULL; | |
166 | ||
8cef9082 PW |
167 | list_for_each_entry(q, &dquirks_list, node) { |
168 | if (q->hid_bl_item.idVendor == idVendor && | |
169 | q->hid_bl_item.idProduct == idProduct) { | |
170 | bl_entry = &q->hid_bl_item; | |
171 | break; | |
172 | } | |
173 | } | |
174 | ||
175 | if (bl_entry != NULL) | |
58037eb9 | 176 | dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n", |
8cef9082 PW |
177 | bl_entry->quirks, bl_entry->idVendor, |
178 | bl_entry->idProduct); | |
179 | ||
180 | return bl_entry; | |
181 | } | |
182 | ||
183 | ||
184 | /** | |
185 | * usbhid_modify_dquirk: add/replace a HID quirk | |
186 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
187 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
188 | * @quirks: the u32 quirks value to add/replace | |
189 | * | |
190 | * Description: | |
191 | * If an dynamic quirk exists in memory for this (idVendor, | |
192 | * idProduct) pair, replace its quirks value with what was | |
193 | * provided. Otherwise, add the quirk to the dynamic quirks list. | |
194 | * | |
195 | * Returns: 0 OK, -error on failure. | |
196 | */ | |
abdff0f7 AB |
197 | static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct, |
198 | const u32 quirks) | |
8cef9082 PW |
199 | { |
200 | struct quirks_list_struct *q_new, *q; | |
201 | int list_edited = 0; | |
202 | ||
203 | if (!idVendor) { | |
58037eb9 | 204 | dbg_hid("Cannot add a quirk with idVendor = 0\n"); |
8cef9082 PW |
205 | return -EINVAL; |
206 | } | |
207 | ||
208 | q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL); | |
209 | if (!q_new) { | |
58037eb9 | 210 | dbg_hid("Could not allocate quirks_list_struct\n"); |
8cef9082 PW |
211 | return -ENOMEM; |
212 | } | |
213 | ||
214 | q_new->hid_bl_item.idVendor = idVendor; | |
215 | q_new->hid_bl_item.idProduct = idProduct; | |
216 | q_new->hid_bl_item.quirks = quirks; | |
217 | ||
218 | down_write(&dquirks_rwsem); | |
219 | ||
220 | list_for_each_entry(q, &dquirks_list, node) { | |
221 | ||
222 | if (q->hid_bl_item.idVendor == idVendor && | |
223 | q->hid_bl_item.idProduct == idProduct) { | |
224 | ||
225 | list_replace(&q->node, &q_new->node); | |
226 | kfree(q); | |
227 | list_edited = 1; | |
228 | break; | |
229 | ||
230 | } | |
231 | ||
232 | } | |
233 | ||
234 | if (!list_edited) | |
235 | list_add_tail(&q_new->node, &dquirks_list); | |
236 | ||
237 | up_write(&dquirks_rwsem); | |
238 | ||
239 | return 0; | |
240 | } | |
241 | ||
8cef9082 PW |
242 | /** |
243 | * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory | |
244 | * | |
245 | * Description: | |
246 | * Free all memory associated with dynamic quirks - called before | |
247 | * module unload. | |
248 | * | |
249 | */ | |
250 | static void usbhid_remove_all_dquirks(void) | |
251 | { | |
252 | struct quirks_list_struct *q, *temp; | |
253 | ||
254 | down_write(&dquirks_rwsem); | |
255 | list_for_each_entry_safe(q, temp, &dquirks_list, node) { | |
256 | list_del(&q->node); | |
257 | kfree(q); | |
258 | } | |
259 | up_write(&dquirks_rwsem); | |
260 | ||
261 | } | |
262 | ||
876b9276 PW |
263 | /** |
264 | * usbhid_quirks_init: apply USB HID quirks specified at module load time | |
265 | */ | |
266 | int usbhid_quirks_init(char **quirks_param) | |
267 | { | |
268 | u16 idVendor, idProduct; | |
269 | u32 quirks; | |
270 | int n = 0, m; | |
271 | ||
44cb2db1 | 272 | for (; n < MAX_USBHID_BOOT_QUIRKS && quirks_param[n]; n++) { |
876b9276 PW |
273 | |
274 | m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x", | |
275 | &idVendor, &idProduct, &quirks); | |
276 | ||
277 | if (m != 3 || | |
278 | usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) { | |
279 | printk(KERN_WARNING | |
280 | "Could not parse HID quirk module param %s\n", | |
281 | quirks_param[n]); | |
282 | } | |
283 | } | |
284 | ||
285 | return 0; | |
286 | } | |
287 | ||
288 | /** | |
289 | * usbhid_quirks_exit: release memory associated with dynamic_quirks | |
290 | * | |
291 | * Description: | |
292 | * Release all memory associated with dynamic quirks. Called upon | |
293 | * module unload. | |
294 | * | |
295 | * Returns: nothing | |
296 | */ | |
297 | void usbhid_quirks_exit(void) | |
298 | { | |
299 | usbhid_remove_all_dquirks(); | |
300 | } | |
8cef9082 PW |
301 | |
302 | /** | |
303 | * usbhid_exists_squirk: return any static quirks for a USB HID device | |
304 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
305 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
306 | * | |
307 | * Description: | |
308 | * Given a USB vendor ID and product ID, return a pointer to | |
309 | * the hid_blacklist entry associated with that device. | |
310 | * | |
311 | * Returns: pointer if quirk found, or NULL if no quirks found. | |
312 | */ | |
8222fbe6 | 313 | static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor, |
8cef9082 | 314 | const u16 idProduct) |
8222fbe6 | 315 | { |
8cef9082 PW |
316 | const struct hid_blacklist *bl_entry = NULL; |
317 | int n = 0; | |
8222fbe6 PW |
318 | |
319 | for (; hid_blacklist[n].idVendor; n++) | |
320 | if (hid_blacklist[n].idVendor == idVendor && | |
321 | hid_blacklist[n].idProduct == idProduct) | |
322 | bl_entry = &hid_blacklist[n]; | |
323 | ||
324 | if (bl_entry != NULL) | |
58037eb9 | 325 | dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n", |
8222fbe6 PW |
326 | bl_entry->quirks, bl_entry->idVendor, |
327 | bl_entry->idProduct); | |
328 | return bl_entry; | |
329 | } | |
2eb5dc30 PW |
330 | |
331 | /** | |
332 | * usbhid_lookup_quirk: return any quirks associated with a USB HID device | |
333 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
334 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
335 | * | |
336 | * Description: | |
337 | * Given a USB vendor ID and product ID, return any quirks associated | |
338 | * with that device. | |
339 | * | |
340 | * Returns: a u32 quirks value. | |
341 | */ | |
342 | u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct) | |
343 | { | |
344 | u32 quirks = 0; | |
8222fbe6 | 345 | const struct hid_blacklist *bl_entry = NULL; |
2eb5dc30 | 346 | |
b8e98f1c JK |
347 | /* NCR devices must not be queried for reports */ |
348 | if (idVendor == USB_VENDOR_ID_NCR && | |
349 | idProduct >= USB_DEVICE_ID_NCR_FIRST && | |
350 | idProduct <= USB_DEVICE_ID_NCR_LAST) | |
5b915d9e | 351 | return HID_QUIRK_NO_INIT_REPORTS; |
b8e98f1c | 352 | |
8cef9082 PW |
353 | down_read(&dquirks_rwsem); |
354 | bl_entry = usbhid_exists_dquirk(idVendor, idProduct); | |
355 | if (!bl_entry) | |
356 | bl_entry = usbhid_exists_squirk(idVendor, idProduct); | |
8222fbe6 PW |
357 | if (bl_entry) |
358 | quirks = bl_entry->quirks; | |
8cef9082 PW |
359 | up_read(&dquirks_rwsem); |
360 | ||
2eb5dc30 PW |
361 | return quirks; |
362 | } | |
8222fbe6 | 363 | |
9f6b3727 | 364 | EXPORT_SYMBOL_GPL(usbhid_lookup_quirk); |