nilfs2: unbreak compat ioctl
[zen-stable.git] / drivers / hid / usbhid / hid-quirks.c
blob5028d60a22a19b6b69cd1c942728f350d40744b7
1 /*
2 * USB HID quirks support for Linux
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 */
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.
18 #include <linux/hid.h>
19 #include <linux/export.h>
20 #include <linux/slab.h>
22 #include "../hid-ids.h"
25 * Alphabetically sorted blacklist by quirk type.
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 },
48 { USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL },
50 { USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH, HID_QUIRK_MULTI_INPUT },
51 { USB_VENDOR_ID_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD, HID_QUIRK_MULTI_INPUT },
52 { USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
53 { USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT },
54 { USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS, HID_QUIRK_MULTI_INPUT },
56 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
57 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
58 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
59 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
60 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
61 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK, HID_QUIRK_NOGET },
62 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE, HID_QUIRK_NOGET },
63 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE, HID_QUIRK_NOGET },
64 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_THROTTLE, HID_QUIRK_NOGET },
65 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS, HID_QUIRK_NOGET },
66 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
67 { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
68 { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
69 { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
70 { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
71 { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
72 { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
73 { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET },
74 { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET },
75 { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
76 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
77 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT },
78 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5, HID_QUIRK_MULTI_INPUT },
79 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60, HID_QUIRK_MULTI_INPUT },
80 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U, HID_QUIRK_MULTI_INPUT },
81 { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U, HID_QUIRK_MULTI_INPUT },
82 { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH, HID_QUIRK_MULTI_INPUT },
83 { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH, HID_QUIRK_MULTI_INPUT },
84 { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
86 { USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
88 { USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL, HID_QUIRK_HIDINPUT_FORCE },
90 { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT },
91 { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT },
92 { USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS },
93 { 0, 0 }
96 /* Dynamic HID quirks list - specified at runtime */
97 struct quirks_list_struct {
98 struct hid_blacklist hid_bl_item;
99 struct list_head node;
102 static LIST_HEAD(dquirks_list);
103 static DECLARE_RWSEM(dquirks_rwsem);
105 /* Runtime ("dynamic") quirks manipulation functions */
108 * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device
109 * @idVendor: the 16-bit USB vendor ID, in native byteorder
110 * @idProduct: the 16-bit USB product ID, in native byteorder
112 * Description:
113 * Scans dquirks_list for a matching dynamic quirk and returns
114 * the pointer to the relevant struct hid_blacklist if found.
115 * Must be called with a read lock held on dquirks_rwsem.
117 * Returns: NULL if no quirk found, struct hid_blacklist * if found.
119 static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor,
120 const u16 idProduct)
122 struct quirks_list_struct *q;
123 struct hid_blacklist *bl_entry = NULL;
125 list_for_each_entry(q, &dquirks_list, node) {
126 if (q->hid_bl_item.idVendor == idVendor &&
127 q->hid_bl_item.idProduct == idProduct) {
128 bl_entry = &q->hid_bl_item;
129 break;
133 if (bl_entry != NULL)
134 dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
135 bl_entry->quirks, bl_entry->idVendor,
136 bl_entry->idProduct);
138 return bl_entry;
143 * usbhid_modify_dquirk: add/replace a HID quirk
144 * @idVendor: the 16-bit USB vendor ID, in native byteorder
145 * @idProduct: the 16-bit USB product ID, in native byteorder
146 * @quirks: the u32 quirks value to add/replace
148 * Description:
149 * If an dynamic quirk exists in memory for this (idVendor,
150 * idProduct) pair, replace its quirks value with what was
151 * provided. Otherwise, add the quirk to the dynamic quirks list.
153 * Returns: 0 OK, -error on failure.
155 static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
156 const u32 quirks)
158 struct quirks_list_struct *q_new, *q;
159 int list_edited = 0;
161 if (!idVendor) {
162 dbg_hid("Cannot add a quirk with idVendor = 0\n");
163 return -EINVAL;
166 q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL);
167 if (!q_new) {
168 dbg_hid("Could not allocate quirks_list_struct\n");
169 return -ENOMEM;
172 q_new->hid_bl_item.idVendor = idVendor;
173 q_new->hid_bl_item.idProduct = idProduct;
174 q_new->hid_bl_item.quirks = quirks;
176 down_write(&dquirks_rwsem);
178 list_for_each_entry(q, &dquirks_list, node) {
180 if (q->hid_bl_item.idVendor == idVendor &&
181 q->hid_bl_item.idProduct == idProduct) {
183 list_replace(&q->node, &q_new->node);
184 kfree(q);
185 list_edited = 1;
186 break;
192 if (!list_edited)
193 list_add_tail(&q_new->node, &dquirks_list);
195 up_write(&dquirks_rwsem);
197 return 0;
201 * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory
203 * Description:
204 * Free all memory associated with dynamic quirks - called before
205 * module unload.
208 static void usbhid_remove_all_dquirks(void)
210 struct quirks_list_struct *q, *temp;
212 down_write(&dquirks_rwsem);
213 list_for_each_entry_safe(q, temp, &dquirks_list, node) {
214 list_del(&q->node);
215 kfree(q);
217 up_write(&dquirks_rwsem);
221 /**
222 * usbhid_quirks_init: apply USB HID quirks specified at module load time
224 int usbhid_quirks_init(char **quirks_param)
226 u16 idVendor, idProduct;
227 u32 quirks;
228 int n = 0, m;
230 for (; n < MAX_USBHID_BOOT_QUIRKS && quirks_param[n]; n++) {
232 m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x",
233 &idVendor, &idProduct, &quirks);
235 if (m != 3 ||
236 usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) {
237 printk(KERN_WARNING
238 "Could not parse HID quirk module param %s\n",
239 quirks_param[n]);
243 return 0;
247 * usbhid_quirks_exit: release memory associated with dynamic_quirks
249 * Description:
250 * Release all memory associated with dynamic quirks. Called upon
251 * module unload.
253 * Returns: nothing
255 void usbhid_quirks_exit(void)
257 usbhid_remove_all_dquirks();
261 * usbhid_exists_squirk: return any static quirks for a USB HID device
262 * @idVendor: the 16-bit USB vendor ID, in native byteorder
263 * @idProduct: the 16-bit USB product ID, in native byteorder
265 * Description:
266 * Given a USB vendor ID and product ID, return a pointer to
267 * the hid_blacklist entry associated with that device.
269 * Returns: pointer if quirk found, or NULL if no quirks found.
271 static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
272 const u16 idProduct)
274 const struct hid_blacklist *bl_entry = NULL;
275 int n = 0;
277 for (; hid_blacklist[n].idVendor; n++)
278 if (hid_blacklist[n].idVendor == idVendor &&
279 hid_blacklist[n].idProduct == idProduct)
280 bl_entry = &hid_blacklist[n];
282 if (bl_entry != NULL)
283 dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
284 bl_entry->quirks, bl_entry->idVendor,
285 bl_entry->idProduct);
286 return bl_entry;
290 * usbhid_lookup_quirk: return any quirks associated with a USB HID device
291 * @idVendor: the 16-bit USB vendor ID, in native byteorder
292 * @idProduct: the 16-bit USB product ID, in native byteorder
294 * Description:
295 * Given a USB vendor ID and product ID, return any quirks associated
296 * with that device.
298 * Returns: a u32 quirks value.
300 u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct)
302 u32 quirks = 0;
303 const struct hid_blacklist *bl_entry = NULL;
305 /* NCR devices must not be queried for reports */
306 if (idVendor == USB_VENDOR_ID_NCR &&
307 idProduct >= USB_DEVICE_ID_NCR_FIRST &&
308 idProduct <= USB_DEVICE_ID_NCR_LAST)
309 return HID_QUIRK_NO_INIT_REPORTS;
311 down_read(&dquirks_rwsem);
312 bl_entry = usbhid_exists_dquirk(idVendor, idProduct);
313 if (!bl_entry)
314 bl_entry = usbhid_exists_squirk(idVendor, idProduct);
315 if (bl_entry)
316 quirks = bl_entry->quirks;
317 up_read(&dquirks_rwsem);
319 return quirks;
322 EXPORT_SYMBOL_GPL(usbhid_lookup_quirk);