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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 | #include <linux/export.h> | |
20 | #include <linux/slab.h> | |
21 | ||
22 | #include "../hid-ids.h" | |
23 | ||
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[] = { | |
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 }, | |
37 | { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER, HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET }, | |
38 | { USB_VENDOR_ID_MOJO, USB_DEVICE_ID_RETRO_ADAPTER, HID_QUIRK_MULTI_INPUT }, | |
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 }, | |
42 | { USB_VENDOR_ID_NATSU, USB_DEVICE_ID_NATSU_GAMEPAD, HID_QUIRK_BADPAD }, | |
43 | { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD }, | |
44 | { USB_VENDOR_ID_NEXTWINDOW, USB_DEVICE_ID_NEXTWINDOW_TOUCHSCREEN, HID_QUIRK_MULTI_INPUT}, | |
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 }, | |
47 | ||
48 | { USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL }, | |
49 | ||
50 | { USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II, HID_QUIRK_MULTI_INPUT }, | |
51 | { USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH, HID_QUIRK_MULTI_INPUT }, | |
52 | { USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH_2968, HID_QUIRK_MULTI_INPUT }, | |
53 | { USB_VENDOR_ID_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD, HID_QUIRK_MULTI_INPUT }, | |
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_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS, HID_QUIRK_MULTI_INPUT }, | |
56 | ||
57 | { USB_VENDOR_ID_AIREN, USB_DEVICE_ID_AIREN_SLIMPLUS, HID_QUIRK_NOGET }, | |
58 | { USB_VENDOR_ID_AKAI, USB_DEVICE_ID_AKAI_MPKMINI2, HID_QUIRK_NO_INIT_REPORTS }, | |
59 | { USB_VENDOR_ID_AKAI_09E8, USB_DEVICE_ID_AKAI_09E8_MIDIMIX, HID_QUIRK_NO_INIT_REPORTS }, | |
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 }, | |
65 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS682, HID_QUIRK_NOGET }, | |
66 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FIGHTERSTICK, HID_QUIRK_NOGET }, | |
67 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK, HID_QUIRK_NOGET }, | |
68 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE, HID_QUIRK_NOGET }, | |
69 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE, HID_QUIRK_NOGET }, | |
70 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_THROTTLE, HID_QUIRK_NOGET }, | |
71 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS, HID_QUIRK_NOGET }, | |
72 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET }, | |
73 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET }, | |
74 | { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL }, | |
75 | { USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K70R, HID_QUIRK_NO_INIT_REPORTS }, | |
76 | { USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_M65RGB, HID_QUIRK_NO_INIT_REPORTS }, | |
77 | { USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K95RGB, HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL }, | |
78 | { USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K70RGB, HID_QUIRK_NO_INIT_REPORTS }, | |
79 | { USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K65RGB, HID_QUIRK_NO_INIT_REPORTS }, | |
80 | { USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_STRAFE, HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL }, | |
81 | { USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_CREATIVE_SB_OMNI_SURROUND_51, HID_QUIRK_NOGET }, | |
82 | { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET }, | |
83 | { USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT }, | |
84 | { USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3, HID_QUIRK_MULTI_INPUT }, | |
85 | { USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE, HID_QUIRK_MULTI_INPUT }, | |
86 | { USB_VENDOR_ID_ELAN, HID_ANY_ID, HID_QUIRK_ALWAYS_POLL }, | |
87 | { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET }, | |
88 | { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS }, | |
89 | { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET }, | |
90 | { USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A, HID_QUIRK_ALWAYS_POLL }, | |
91 | { USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A, HID_QUIRK_ALWAYS_POLL }, | |
92 | { USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL }, | |
93 | { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C077, HID_QUIRK_ALWAYS_POLL }, | |
94 | { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_KEYBOARD_G710_PLUS, HID_QUIRK_NOGET }, | |
95 | { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOUSE_C01A, HID_QUIRK_ALWAYS_POLL }, | |
96 | { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOUSE_C05A, HID_QUIRK_ALWAYS_POLL }, | |
97 | { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOUSE_C06A, HID_QUIRK_ALWAYS_POLL }, | |
98 | { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET }, | |
99 | { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_SURFACE_PRO_2, HID_QUIRK_NO_INIT_REPORTS }, | |
100 | { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_2, HID_QUIRK_NO_INIT_REPORTS }, | |
101 | { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TOUCH_COVER_2, HID_QUIRK_NO_INIT_REPORTS }, | |
102 | { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3, HID_QUIRK_NO_INIT_REPORTS }, | |
103 | { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2, HID_QUIRK_NO_INIT_REPORTS }, | |
104 | { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP, HID_QUIRK_NO_INIT_REPORTS }, | |
105 | { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP, HID_QUIRK_NO_INIT_REPORTS }, | |
106 | { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3, HID_QUIRK_NO_INIT_REPORTS }, | |
107 | { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER, HID_QUIRK_NO_INIT_REPORTS }, | |
108 | { USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS }, | |
109 | { USB_VENDOR_ID_NEXIO, USB_DEVICE_ID_NEXIO_MULTITOUCH_PTI0750, HID_QUIRK_NO_INIT_REPORTS }, | |
110 | { USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS }, | |
111 | { USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_1610, HID_QUIRK_NOGET }, | |
112 | { USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_1640, HID_QUIRK_NOGET }, | |
113 | { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL }, | |
114 | { USB_VENDOR_ID_KYE, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE_ID2, HID_QUIRK_ALWAYS_POLL }, | |
115 | { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS }, | |
116 | { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS }, | |
117 | { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS }, | |
118 | { USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_MOUSE_4D22, HID_QUIRK_ALWAYS_POLL }, | |
119 | { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET }, | |
120 | { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001, HID_QUIRK_NOGET }, | |
121 | { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3003, HID_QUIRK_NOGET }, | |
122 | { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET }, | |
123 | { USB_VENDOR_ID_REALTEK, USB_DEVICE_ID_REALTEK_READER, HID_QUIRK_NO_INIT_REPORTS }, | |
124 | { USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET }, | |
125 | { USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780, HID_QUIRK_NOGET }, | |
126 | { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS9200_TOUCH, HID_QUIRK_NOGET }, | |
127 | { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS817_TOUCH, HID_QUIRK_NOGET }, | |
128 | { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS_TS, HID_QUIRK_NO_INIT_REPORTS }, | |
129 | { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS1030_TOUCH, HID_QUIRK_NOGET }, | |
130 | { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET }, | |
131 | { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET }, | |
132 | { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET }, | |
133 | { USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8882, HID_QUIRK_NOGET }, | |
134 | { USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8883, HID_QUIRK_NOGET }, | |
135 | { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET }, | |
136 | { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5, HID_QUIRK_MULTI_INPUT }, | |
137 | { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60, HID_QUIRK_MULTI_INPUT }, | |
138 | { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH, HID_QUIRK_MULTI_INPUT }, | |
139 | { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH, HID_QUIRK_MULTI_INPUT }, | |
140 | { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET, HID_QUIRK_MULTI_INPUT }, | |
141 | { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, | |
142 | ||
143 | { USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, | |
144 | ||
145 | { USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL, HID_QUIRK_HIDINPUT_FORCE }, | |
146 | ||
147 | { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT }, | |
148 | { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT }, | |
149 | { USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS }, | |
150 | { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT }, | |
151 | { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2, HID_QUIRK_MULTI_INPUT }, | |
152 | { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT }, | |
153 | { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_PENSKETCH_M912, HID_QUIRK_MULTI_INPUT }, | |
154 | { USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS }, | |
155 | { USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD, HID_QUIRK_NO_INIT_REPORTS }, | |
156 | { USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD2, HID_QUIRK_NO_INIT_REPORTS }, | |
157 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS1, HID_QUIRK_NO_INIT_REPORTS }, | |
158 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS2, HID_QUIRK_NO_INIT_REPORTS }, | |
159 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_HD, HID_QUIRK_NO_INIT_REPORTS }, | |
160 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_QUAD_HD, HID_QUIRK_NO_INIT_REPORTS }, | |
161 | { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP_V103, HID_QUIRK_NO_INIT_REPORTS }, | |
162 | { USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096, HID_QUIRK_NO_INIT_INPUT_REPORTS }, | |
163 | { USB_VENDOR_ID_MULTIPLE_1781, USB_DEVICE_ID_RAPHNET_4NES4SNES_OLD, HID_QUIRK_MULTI_INPUT }, | |
164 | { USB_VENDOR_ID_DRACAL_RAPHNET, USB_DEVICE_ID_RAPHNET_2NES2SNES, HID_QUIRK_MULTI_INPUT }, | |
165 | { USB_VENDOR_ID_DRACAL_RAPHNET, USB_DEVICE_ID_RAPHNET_4NES4SNES, HID_QUIRK_MULTI_INPUT }, | |
166 | ||
167 | { 0, 0 } | |
168 | }; | |
169 | ||
170 | /* Dynamic HID quirks list - specified at runtime */ | |
171 | struct quirks_list_struct { | |
172 | struct hid_blacklist hid_bl_item; | |
173 | struct list_head node; | |
174 | }; | |
175 | ||
176 | static LIST_HEAD(dquirks_list); | |
177 | static DECLARE_RWSEM(dquirks_rwsem); | |
178 | ||
179 | /* Runtime ("dynamic") quirks manipulation functions */ | |
180 | ||
181 | /** | |
182 | * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device | |
183 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
184 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
185 | * | |
186 | * Description: | |
187 | * Scans dquirks_list for a matching dynamic quirk and returns | |
188 | * the pointer to the relevant struct hid_blacklist if found. | |
189 | * Must be called with a read lock held on dquirks_rwsem. | |
190 | * | |
191 | * Returns: NULL if no quirk found, struct hid_blacklist * if found. | |
192 | */ | |
193 | static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor, | |
194 | const u16 idProduct) | |
195 | { | |
196 | struct quirks_list_struct *q; | |
197 | struct hid_blacklist *bl_entry = NULL; | |
198 | ||
199 | list_for_each_entry(q, &dquirks_list, node) { | |
200 | if (q->hid_bl_item.idVendor == idVendor && | |
201 | q->hid_bl_item.idProduct == idProduct) { | |
202 | bl_entry = &q->hid_bl_item; | |
203 | break; | |
204 | } | |
205 | } | |
206 | ||
207 | if (bl_entry != NULL) | |
208 | dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n", | |
209 | bl_entry->quirks, bl_entry->idVendor, | |
210 | bl_entry->idProduct); | |
211 | ||
212 | return bl_entry; | |
213 | } | |
214 | ||
215 | ||
216 | /** | |
217 | * usbhid_modify_dquirk: add/replace a HID quirk | |
218 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
219 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
220 | * @quirks: the u32 quirks value to add/replace | |
221 | * | |
222 | * Description: | |
223 | * If an dynamic quirk exists in memory for this (idVendor, | |
224 | * idProduct) pair, replace its quirks value with what was | |
225 | * provided. Otherwise, add the quirk to the dynamic quirks list. | |
226 | * | |
227 | * Returns: 0 OK, -error on failure. | |
228 | */ | |
229 | static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct, | |
230 | const u32 quirks) | |
231 | { | |
232 | struct quirks_list_struct *q_new, *q; | |
233 | int list_edited = 0; | |
234 | ||
235 | if (!idVendor) { | |
236 | dbg_hid("Cannot add a quirk with idVendor = 0\n"); | |
237 | return -EINVAL; | |
238 | } | |
239 | ||
240 | q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL); | |
241 | if (!q_new) { | |
242 | dbg_hid("Could not allocate quirks_list_struct\n"); | |
243 | return -ENOMEM; | |
244 | } | |
245 | ||
246 | q_new->hid_bl_item.idVendor = idVendor; | |
247 | q_new->hid_bl_item.idProduct = idProduct; | |
248 | q_new->hid_bl_item.quirks = quirks; | |
249 | ||
250 | down_write(&dquirks_rwsem); | |
251 | ||
252 | list_for_each_entry(q, &dquirks_list, node) { | |
253 | ||
254 | if (q->hid_bl_item.idVendor == idVendor && | |
255 | q->hid_bl_item.idProduct == idProduct) { | |
256 | ||
257 | list_replace(&q->node, &q_new->node); | |
258 | kfree(q); | |
259 | list_edited = 1; | |
260 | break; | |
261 | ||
262 | } | |
263 | ||
264 | } | |
265 | ||
266 | if (!list_edited) | |
267 | list_add_tail(&q_new->node, &dquirks_list); | |
268 | ||
269 | up_write(&dquirks_rwsem); | |
270 | ||
271 | return 0; | |
272 | } | |
273 | ||
274 | /** | |
275 | * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory | |
276 | * | |
277 | * Description: | |
278 | * Free all memory associated with dynamic quirks - called before | |
279 | * module unload. | |
280 | * | |
281 | */ | |
282 | static void usbhid_remove_all_dquirks(void) | |
283 | { | |
284 | struct quirks_list_struct *q, *temp; | |
285 | ||
286 | down_write(&dquirks_rwsem); | |
287 | list_for_each_entry_safe(q, temp, &dquirks_list, node) { | |
288 | list_del(&q->node); | |
289 | kfree(q); | |
290 | } | |
291 | up_write(&dquirks_rwsem); | |
292 | ||
293 | } | |
294 | ||
295 | /** | |
296 | * usbhid_quirks_init: apply USB HID quirks specified at module load time | |
297 | */ | |
298 | int usbhid_quirks_init(char **quirks_param) | |
299 | { | |
300 | u16 idVendor, idProduct; | |
301 | u32 quirks; | |
302 | int n = 0, m; | |
303 | ||
304 | for (; n < MAX_USBHID_BOOT_QUIRKS && quirks_param[n]; n++) { | |
305 | ||
306 | m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x", | |
307 | &idVendor, &idProduct, &quirks); | |
308 | ||
309 | if (m != 3 || | |
310 | usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) { | |
311 | printk(KERN_WARNING | |
312 | "Could not parse HID quirk module param %s\n", | |
313 | quirks_param[n]); | |
314 | } | |
315 | } | |
316 | ||
317 | return 0; | |
318 | } | |
319 | ||
320 | /** | |
321 | * usbhid_quirks_exit: release memory associated with dynamic_quirks | |
322 | * | |
323 | * Description: | |
324 | * Release all memory associated with dynamic quirks. Called upon | |
325 | * module unload. | |
326 | * | |
327 | * Returns: nothing | |
328 | */ | |
329 | void usbhid_quirks_exit(void) | |
330 | { | |
331 | usbhid_remove_all_dquirks(); | |
332 | } | |
333 | ||
334 | /** | |
335 | * usbhid_exists_squirk: return any static quirks for a USB HID device | |
336 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
337 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
338 | * | |
339 | * Description: | |
340 | * Given a USB vendor ID and product ID, return a pointer to | |
341 | * the hid_blacklist entry associated with that device. | |
342 | * | |
343 | * Returns: pointer if quirk found, or NULL if no quirks found. | |
344 | */ | |
345 | static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor, | |
346 | const u16 idProduct) | |
347 | { | |
348 | const struct hid_blacklist *bl_entry = NULL; | |
349 | int n = 0; | |
350 | ||
351 | for (; hid_blacklist[n].idVendor; n++) | |
352 | if (hid_blacklist[n].idVendor == idVendor && | |
353 | (hid_blacklist[n].idProduct == (__u16) HID_ANY_ID || | |
354 | hid_blacklist[n].idProduct == idProduct)) | |
355 | bl_entry = &hid_blacklist[n]; | |
356 | ||
357 | if (bl_entry != NULL) | |
358 | dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n", | |
359 | bl_entry->quirks, bl_entry->idVendor, | |
360 | bl_entry->idProduct); | |
361 | return bl_entry; | |
362 | } | |
363 | ||
364 | /** | |
365 | * usbhid_lookup_quirk: return any quirks associated with a USB HID device | |
366 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
367 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
368 | * | |
369 | * Description: | |
370 | * Given a USB vendor ID and product ID, return any quirks associated | |
371 | * with that device. | |
372 | * | |
373 | * Returns: a u32 quirks value. | |
374 | */ | |
375 | u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct) | |
376 | { | |
377 | u32 quirks = 0; | |
378 | const struct hid_blacklist *bl_entry = NULL; | |
379 | ||
380 | /* NCR devices must not be queried for reports */ | |
381 | if (idVendor == USB_VENDOR_ID_NCR && | |
382 | idProduct >= USB_DEVICE_ID_NCR_FIRST && | |
383 | idProduct <= USB_DEVICE_ID_NCR_LAST) | |
384 | return HID_QUIRK_NO_INIT_REPORTS; | |
385 | ||
386 | down_read(&dquirks_rwsem); | |
387 | bl_entry = usbhid_exists_dquirk(idVendor, idProduct); | |
388 | if (!bl_entry) | |
389 | bl_entry = usbhid_exists_squirk(idVendor, idProduct); | |
390 | if (bl_entry) | |
391 | quirks = bl_entry->quirks; | |
392 | up_read(&dquirks_rwsem); | |
393 | ||
394 | return quirks; | |
395 | } | |
396 | ||
397 | EXPORT_SYMBOL_GPL(usbhid_lookup_quirk); |