tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
28static 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_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD, HID_QUIRK_MULTI_INPUT },
53 { USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
54 { USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT },
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_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
59 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
60 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
61 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
62 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
63 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FIGHTERSTICK, HID_QUIRK_NOGET },
64 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK, HID_QUIRK_NOGET },
65 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE, HID_QUIRK_NOGET },
66 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE, HID_QUIRK_NOGET },
67 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_THROTTLE, HID_QUIRK_NOGET },
68 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS, HID_QUIRK_NOGET },
69 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
70 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
71 { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
72 { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
73 { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
74 { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
75 { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET },
76 { USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GX680R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS },
77 { USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS },
78 { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS },
79 { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS },
80 { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS },
81 { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
82 { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001, HID_QUIRK_NOGET },
83 { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET },
84 { USB_VENDOR_ID_REALTEK, USB_DEVICE_ID_REALTEK_READER, HID_QUIRK_NO_INIT_REPORTS },
85 { USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET },
86 { USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780, HID_QUIRK_NOGET },
87 { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
88 { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET },
89 { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET },
90 { USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN, HID_QUIRK_NOGET },
91 { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
92 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
93 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT },
94 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5, HID_QUIRK_MULTI_INPUT },
95 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60, HID_QUIRK_MULTI_INPUT },
96 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U, HID_QUIRK_MULTI_INPUT },
97 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U, HID_QUIRK_MULTI_INPUT },
98 { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH, HID_QUIRK_MULTI_INPUT },
99 { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH, HID_QUIRK_MULTI_INPUT },
100 { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET, HID_QUIRK_MULTI_INPUT },
101 { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
102
103 { USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
104
105 { USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL, HID_QUIRK_HIDINPUT_FORCE },
106
107 { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT },
108 { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT },
109 { USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS },
110 { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT },
111 { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT },
112 { 0, 0 }
113};
114
115/* Dynamic HID quirks list - specified at runtime */
116struct quirks_list_struct {
117 struct hid_blacklist hid_bl_item;
118 struct list_head node;
119};
120
121static LIST_HEAD(dquirks_list);
122static DECLARE_RWSEM(dquirks_rwsem);
123
124/* Runtime ("dynamic") quirks manipulation functions */
125
126/**
127 * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device
128 * @idVendor: the 16-bit USB vendor ID, in native byteorder
129 * @idProduct: the 16-bit USB product ID, in native byteorder
130 *
131 * Description:
132 * Scans dquirks_list for a matching dynamic quirk and returns
133 * the pointer to the relevant struct hid_blacklist if found.
134 * Must be called with a read lock held on dquirks_rwsem.
135 *
136 * Returns: NULL if no quirk found, struct hid_blacklist * if found.
137 */
138static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor,
139 const u16 idProduct)
140{
141 struct quirks_list_struct *q;
142 struct hid_blacklist *bl_entry = NULL;
143
144 list_for_each_entry(q, &dquirks_list, node) {
145 if (q->hid_bl_item.idVendor == idVendor &&
146 q->hid_bl_item.idProduct == idProduct) {
147 bl_entry = &q->hid_bl_item;
148 break;
149 }
150 }
151
152 if (bl_entry != NULL)
153 dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
154 bl_entry->quirks, bl_entry->idVendor,
155 bl_entry->idProduct);
156
157 return bl_entry;
158}
159
160
161/**
162 * usbhid_modify_dquirk: add/replace a HID quirk
163 * @idVendor: the 16-bit USB vendor ID, in native byteorder
164 * @idProduct: the 16-bit USB product ID, in native byteorder
165 * @quirks: the u32 quirks value to add/replace
166 *
167 * Description:
168 * If an dynamic quirk exists in memory for this (idVendor,
169 * idProduct) pair, replace its quirks value with what was
170 * provided. Otherwise, add the quirk to the dynamic quirks list.
171 *
172 * Returns: 0 OK, -error on failure.
173 */
174static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
175 const u32 quirks)
176{
177 struct quirks_list_struct *q_new, *q;
178 int list_edited = 0;
179
180 if (!idVendor) {
181 dbg_hid("Cannot add a quirk with idVendor = 0\n");
182 return -EINVAL;
183 }
184
185 q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL);
186 if (!q_new) {
187 dbg_hid("Could not allocate quirks_list_struct\n");
188 return -ENOMEM;
189 }
190
191 q_new->hid_bl_item.idVendor = idVendor;
192 q_new->hid_bl_item.idProduct = idProduct;
193 q_new->hid_bl_item.quirks = quirks;
194
195 down_write(&dquirks_rwsem);
196
197 list_for_each_entry(q, &dquirks_list, node) {
198
199 if (q->hid_bl_item.idVendor == idVendor &&
200 q->hid_bl_item.idProduct == idProduct) {
201
202 list_replace(&q->node, &q_new->node);
203 kfree(q);
204 list_edited = 1;
205 break;
206
207 }
208
209 }
210
211 if (!list_edited)
212 list_add_tail(&q_new->node, &dquirks_list);
213
214 up_write(&dquirks_rwsem);
215
216 return 0;
217}
218
219/**
220 * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory
221 *
222 * Description:
223 * Free all memory associated with dynamic quirks - called before
224 * module unload.
225 *
226 */
227static void usbhid_remove_all_dquirks(void)
228{
229 struct quirks_list_struct *q, *temp;
230
231 down_write(&dquirks_rwsem);
232 list_for_each_entry_safe(q, temp, &dquirks_list, node) {
233 list_del(&q->node);
234 kfree(q);
235 }
236 up_write(&dquirks_rwsem);
237
238}
239
240/**
241 * usbhid_quirks_init: apply USB HID quirks specified at module load time
242 */
243int usbhid_quirks_init(char **quirks_param)
244{
245 u16 idVendor, idProduct;
246 u32 quirks;
247 int n = 0, m;
248
249 for (; n < MAX_USBHID_BOOT_QUIRKS && quirks_param[n]; n++) {
250
251 m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x",
252 &idVendor, &idProduct, &quirks);
253
254 if (m != 3 ||
255 usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) {
256 printk(KERN_WARNING
257 "Could not parse HID quirk module param %s\n",
258 quirks_param[n]);
259 }
260 }
261
262 return 0;
263}
264
265/**
266 * usbhid_quirks_exit: release memory associated with dynamic_quirks
267 *
268 * Description:
269 * Release all memory associated with dynamic quirks. Called upon
270 * module unload.
271 *
272 * Returns: nothing
273 */
274void usbhid_quirks_exit(void)
275{
276 usbhid_remove_all_dquirks();
277}
278
279/**
280 * usbhid_exists_squirk: return any static quirks for a USB HID device
281 * @idVendor: the 16-bit USB vendor ID, in native byteorder
282 * @idProduct: the 16-bit USB product ID, in native byteorder
283 *
284 * Description:
285 * Given a USB vendor ID and product ID, return a pointer to
286 * the hid_blacklist entry associated with that device.
287 *
288 * Returns: pointer if quirk found, or NULL if no quirks found.
289 */
290static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
291 const u16 idProduct)
292{
293 const struct hid_blacklist *bl_entry = NULL;
294 int n = 0;
295
296 for (; hid_blacklist[n].idVendor; n++)
297 if (hid_blacklist[n].idVendor == idVendor &&
298 hid_blacklist[n].idProduct == idProduct)
299 bl_entry = &hid_blacklist[n];
300
301 if (bl_entry != NULL)
302 dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
303 bl_entry->quirks, bl_entry->idVendor,
304 bl_entry->idProduct);
305 return bl_entry;
306}
307
308/**
309 * usbhid_lookup_quirk: return any quirks associated with a USB HID device
310 * @idVendor: the 16-bit USB vendor ID, in native byteorder
311 * @idProduct: the 16-bit USB product ID, in native byteorder
312 *
313 * Description:
314 * Given a USB vendor ID and product ID, return any quirks associated
315 * with that device.
316 *
317 * Returns: a u32 quirks value.
318 */
319u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct)
320{
321 u32 quirks = 0;
322 const struct hid_blacklist *bl_entry = NULL;
323
324 /* NCR devices must not be queried for reports */
325 if (idVendor == USB_VENDOR_ID_NCR &&
326 idProduct >= USB_DEVICE_ID_NCR_FIRST &&
327 idProduct <= USB_DEVICE_ID_NCR_LAST)
328 return HID_QUIRK_NO_INIT_REPORTS;
329
330 down_read(&dquirks_rwsem);
331 bl_entry = usbhid_exists_dquirk(idVendor, idProduct);
332 if (!bl_entry)
333 bl_entry = usbhid_exists_squirk(idVendor, idProduct);
334 if (bl_entry)
335 quirks = bl_entry->quirks;
336 up_read(&dquirks_rwsem);
337
338 return quirks;
339}
340
341EXPORT_SYMBOL_GPL(usbhid_lookup_quirk);