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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> | |
19 | ||
990436a7 | 20 | #include "../hid-ids.h" |
a32bcc45 | 21 | |
2eb5dc30 PW |
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[] = { | |
2eb5dc30 PW |
31 | { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD }, |
32 | { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD }, | |
33 | { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD }, | |
34 | { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD }, | |
35 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, | |
36 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, | |
37 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, | |
c9bde7ad | 38 | { USB_VENDOR_ID_NATSU, USB_DEVICE_ID_NATSU_GAMEPAD, HID_QUIRK_BADPAD }, |
2eb5dc30 PW |
39 | { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD }, |
40 | { USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD }, | |
41 | { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD }, | |
2c3e3bfb | 42 | |
f345c37c PS |
43 | { USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL }, |
44 | ||
2eb5dc30 PW |
45 | { USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS }, |
46 | { USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT }, | |
47 | ||
2eb5dc30 PW |
48 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET }, |
49 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET }, | |
50 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET }, | |
51 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET }, | |
52 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET }, | |
b820aabf AS |
53 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK, HID_QUIRK_NOGET }, |
54 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE, HID_QUIRK_NOGET }, | |
55 | { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS, HID_QUIRK_NOGET }, | |
02008faa | 56 | { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET }, |
d500d116 | 57 | { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET }, |
2eb5dc30 PW |
58 | { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET }, |
59 | { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET }, | |
25e61613 | 60 | { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT }, |
3e52a05f | 61 | { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS }, |
2eb5dc30 PW |
62 | { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, |
63 | ||
64 | { USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, | |
66ebf66e | 65 | { USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, |
2eb5dc30 | 66 | |
ea9a4a8b JK |
67 | { 0, 0 } |
68 | }; | |
69 | ||
8cef9082 PW |
70 | /* Dynamic HID quirks list - specified at runtime */ |
71 | struct quirks_list_struct { | |
72 | struct hid_blacklist hid_bl_item; | |
73 | struct list_head node; | |
74 | }; | |
75 | ||
76 | static LIST_HEAD(dquirks_list); | |
77 | static DECLARE_RWSEM(dquirks_rwsem); | |
78 | ||
79 | /* Runtime ("dynamic") quirks manipulation functions */ | |
80 | ||
8222fbe6 | 81 | /** |
8cef9082 PW |
82 | * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device |
83 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
84 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
85 | * | |
86 | * Description: | |
87 | * Scans dquirks_list for a matching dynamic quirk and returns | |
88 | * the pointer to the relevant struct hid_blacklist if found. | |
89 | * Must be called with a read lock held on dquirks_rwsem. | |
90 | * | |
91 | * Returns: NULL if no quirk found, struct hid_blacklist * if found. | |
92 | */ | |
93 | static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor, | |
94 | const u16 idProduct) | |
95 | { | |
96 | struct quirks_list_struct *q; | |
97 | struct hid_blacklist *bl_entry = NULL; | |
98 | ||
8cef9082 PW |
99 | list_for_each_entry(q, &dquirks_list, node) { |
100 | if (q->hid_bl_item.idVendor == idVendor && | |
101 | q->hid_bl_item.idProduct == idProduct) { | |
102 | bl_entry = &q->hid_bl_item; | |
103 | break; | |
104 | } | |
105 | } | |
106 | ||
107 | if (bl_entry != NULL) | |
58037eb9 | 108 | dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n", |
8cef9082 PW |
109 | bl_entry->quirks, bl_entry->idVendor, |
110 | bl_entry->idProduct); | |
111 | ||
112 | return bl_entry; | |
113 | } | |
114 | ||
115 | ||
116 | /** | |
117 | * usbhid_modify_dquirk: add/replace a HID quirk | |
118 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
119 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
120 | * @quirks: the u32 quirks value to add/replace | |
121 | * | |
122 | * Description: | |
123 | * If an dynamic quirk exists in memory for this (idVendor, | |
124 | * idProduct) pair, replace its quirks value with what was | |
125 | * provided. Otherwise, add the quirk to the dynamic quirks list. | |
126 | * | |
127 | * Returns: 0 OK, -error on failure. | |
128 | */ | |
abdff0f7 AB |
129 | static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct, |
130 | const u32 quirks) | |
8cef9082 PW |
131 | { |
132 | struct quirks_list_struct *q_new, *q; | |
133 | int list_edited = 0; | |
134 | ||
135 | if (!idVendor) { | |
58037eb9 | 136 | dbg_hid("Cannot add a quirk with idVendor = 0\n"); |
8cef9082 PW |
137 | return -EINVAL; |
138 | } | |
139 | ||
140 | q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL); | |
141 | if (!q_new) { | |
58037eb9 | 142 | dbg_hid("Could not allocate quirks_list_struct\n"); |
8cef9082 PW |
143 | return -ENOMEM; |
144 | } | |
145 | ||
146 | q_new->hid_bl_item.idVendor = idVendor; | |
147 | q_new->hid_bl_item.idProduct = idProduct; | |
148 | q_new->hid_bl_item.quirks = quirks; | |
149 | ||
150 | down_write(&dquirks_rwsem); | |
151 | ||
152 | list_for_each_entry(q, &dquirks_list, node) { | |
153 | ||
154 | if (q->hid_bl_item.idVendor == idVendor && | |
155 | q->hid_bl_item.idProduct == idProduct) { | |
156 | ||
157 | list_replace(&q->node, &q_new->node); | |
158 | kfree(q); | |
159 | list_edited = 1; | |
160 | break; | |
161 | ||
162 | } | |
163 | ||
164 | } | |
165 | ||
166 | if (!list_edited) | |
167 | list_add_tail(&q_new->node, &dquirks_list); | |
168 | ||
169 | up_write(&dquirks_rwsem); | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
8cef9082 PW |
174 | /** |
175 | * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory | |
176 | * | |
177 | * Description: | |
178 | * Free all memory associated with dynamic quirks - called before | |
179 | * module unload. | |
180 | * | |
181 | */ | |
182 | static void usbhid_remove_all_dquirks(void) | |
183 | { | |
184 | struct quirks_list_struct *q, *temp; | |
185 | ||
186 | down_write(&dquirks_rwsem); | |
187 | list_for_each_entry_safe(q, temp, &dquirks_list, node) { | |
188 | list_del(&q->node); | |
189 | kfree(q); | |
190 | } | |
191 | up_write(&dquirks_rwsem); | |
192 | ||
193 | } | |
194 | ||
876b9276 PW |
195 | /** |
196 | * usbhid_quirks_init: apply USB HID quirks specified at module load time | |
197 | */ | |
198 | int usbhid_quirks_init(char **quirks_param) | |
199 | { | |
200 | u16 idVendor, idProduct; | |
201 | u32 quirks; | |
202 | int n = 0, m; | |
203 | ||
204 | for (; quirks_param[n] && n < MAX_USBHID_BOOT_QUIRKS; n++) { | |
205 | ||
206 | m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x", | |
207 | &idVendor, &idProduct, &quirks); | |
208 | ||
209 | if (m != 3 || | |
210 | usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) { | |
211 | printk(KERN_WARNING | |
212 | "Could not parse HID quirk module param %s\n", | |
213 | quirks_param[n]); | |
214 | } | |
215 | } | |
216 | ||
217 | return 0; | |
218 | } | |
219 | ||
220 | /** | |
221 | * usbhid_quirks_exit: release memory associated with dynamic_quirks | |
222 | * | |
223 | * Description: | |
224 | * Release all memory associated with dynamic quirks. Called upon | |
225 | * module unload. | |
226 | * | |
227 | * Returns: nothing | |
228 | */ | |
229 | void usbhid_quirks_exit(void) | |
230 | { | |
231 | usbhid_remove_all_dquirks(); | |
232 | } | |
8cef9082 PW |
233 | |
234 | /** | |
235 | * usbhid_exists_squirk: return any static quirks for a USB HID device | |
236 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
237 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
238 | * | |
239 | * Description: | |
240 | * Given a USB vendor ID and product ID, return a pointer to | |
241 | * the hid_blacklist entry associated with that device. | |
242 | * | |
243 | * Returns: pointer if quirk found, or NULL if no quirks found. | |
244 | */ | |
8222fbe6 | 245 | static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor, |
8cef9082 | 246 | const u16 idProduct) |
8222fbe6 | 247 | { |
8cef9082 PW |
248 | const struct hid_blacklist *bl_entry = NULL; |
249 | int n = 0; | |
8222fbe6 PW |
250 | |
251 | for (; hid_blacklist[n].idVendor; n++) | |
252 | if (hid_blacklist[n].idVendor == idVendor && | |
253 | hid_blacklist[n].idProduct == idProduct) | |
254 | bl_entry = &hid_blacklist[n]; | |
255 | ||
256 | if (bl_entry != NULL) | |
58037eb9 | 257 | dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n", |
8222fbe6 PW |
258 | bl_entry->quirks, bl_entry->idVendor, |
259 | bl_entry->idProduct); | |
260 | return bl_entry; | |
261 | } | |
2eb5dc30 PW |
262 | |
263 | /** | |
264 | * usbhid_lookup_quirk: return any quirks associated with a USB HID device | |
265 | * @idVendor: the 16-bit USB vendor ID, in native byteorder | |
266 | * @idProduct: the 16-bit USB product ID, in native byteorder | |
267 | * | |
268 | * Description: | |
269 | * Given a USB vendor ID and product ID, return any quirks associated | |
270 | * with that device. | |
271 | * | |
272 | * Returns: a u32 quirks value. | |
273 | */ | |
274 | u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct) | |
275 | { | |
276 | u32 quirks = 0; | |
8222fbe6 | 277 | const struct hid_blacklist *bl_entry = NULL; |
2eb5dc30 | 278 | |
b8e98f1c JK |
279 | /* NCR devices must not be queried for reports */ |
280 | if (idVendor == USB_VENDOR_ID_NCR && | |
281 | idProduct >= USB_DEVICE_ID_NCR_FIRST && | |
282 | idProduct <= USB_DEVICE_ID_NCR_LAST) | |
283 | return HID_QUIRK_NOGET; | |
284 | ||
8cef9082 PW |
285 | down_read(&dquirks_rwsem); |
286 | bl_entry = usbhid_exists_dquirk(idVendor, idProduct); | |
287 | if (!bl_entry) | |
288 | bl_entry = usbhid_exists_squirk(idVendor, idProduct); | |
8222fbe6 PW |
289 | if (bl_entry) |
290 | quirks = bl_entry->quirks; | |
8cef9082 PW |
291 | up_read(&dquirks_rwsem); |
292 | ||
2eb5dc30 PW |
293 | return quirks; |
294 | } | |
8222fbe6 | 295 | |
9f6b3727 | 296 | EXPORT_SYMBOL_GPL(usbhid_lookup_quirk); |