Merge branches 'upstream' and 'upstream-fixes' into for-linus
[linux-2.6.git] / drivers / hid / usbhid / hid-quirks.c
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/slab.h>
20
21 #include "../hid-ids.h"
22
23 /*
24  * Alphabetically sorted blacklist by quirk type.
25  */
26
27 static const struct hid_blacklist {
28         __u16 idVendor;
29         __u16 idProduct;
30         __u32 quirks;
31 } hid_blacklist[] = {
32         { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD },
33         { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD },
34         { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
35         { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },
36         { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER, HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET },
37         { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH, HID_QUIRK_MULTI_INPUT },
38         { USB_VENDOR_ID_MOJO, USB_DEVICE_ID_RETRO_ADAPTER, HID_QUIRK_MULTI_INPUT },
39         { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART, HID_QUIRK_MULTI_INPUT },
40         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
41         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
42         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
43         { USB_VENDOR_ID_NATSU, USB_DEVICE_ID_NATSU_GAMEPAD, HID_QUIRK_BADPAD },
44         { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD },
45         { USB_VENDOR_ID_NEXTWINDOW, USB_DEVICE_ID_NEXTWINDOW_TOUCHSCREEN, HID_QUIRK_MULTI_INPUT},
46         { USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },
47         { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
48
49         { USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL },
50
51         { USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH, 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 },
55
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_PEDALS, HID_QUIRK_NOGET },
65         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
66         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
67         { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
68         { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
69         { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
70         { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
71         { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
72         { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
73         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
74         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT },
75         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5, HID_QUIRK_MULTI_INPUT },
76         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
77         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
78
79         { USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
80         { USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
81
82         { USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL, HID_QUIRK_HIDINPUT_FORCE },
83
84         { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT },
85
86         { 0, 0 }
87 };
88
89 /* Dynamic HID quirks list - specified at runtime */
90 struct quirks_list_struct {
91         struct hid_blacklist hid_bl_item;
92         struct list_head node;
93 };
94
95 static LIST_HEAD(dquirks_list);
96 static DECLARE_RWSEM(dquirks_rwsem);
97
98 /* Runtime ("dynamic") quirks manipulation functions */
99
100 /**
101  * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device
102  * @idVendor: the 16-bit USB vendor ID, in native byteorder
103  * @idProduct: the 16-bit USB product ID, in native byteorder
104  *
105  * Description:
106  *         Scans dquirks_list for a matching dynamic quirk and returns
107  *         the pointer to the relevant struct hid_blacklist if found.
108  *         Must be called with a read lock held on dquirks_rwsem.
109  *
110  * Returns: NULL if no quirk found, struct hid_blacklist * if found.
111  */
112 static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor,
113                 const u16 idProduct)
114 {
115         struct quirks_list_struct *q;
116         struct hid_blacklist *bl_entry = NULL;
117
118         list_for_each_entry(q, &dquirks_list, node) {
119                 if (q->hid_bl_item.idVendor == idVendor &&
120                                 q->hid_bl_item.idProduct == idProduct) {
121                         bl_entry = &q->hid_bl_item;
122                         break;
123                 }
124         }
125
126         if (bl_entry != NULL)
127                 dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
128                                 bl_entry->quirks, bl_entry->idVendor,
129                                 bl_entry->idProduct);
130
131         return bl_entry;
132 }
133
134
135 /**
136  * usbhid_modify_dquirk: add/replace a HID quirk
137  * @idVendor: the 16-bit USB vendor ID, in native byteorder
138  * @idProduct: the 16-bit USB product ID, in native byteorder
139  * @quirks: the u32 quirks value to add/replace
140  *
141  * Description:
142  *         If an dynamic quirk exists in memory for this (idVendor,
143  *         idProduct) pair, replace its quirks value with what was
144  *         provided.  Otherwise, add the quirk to the dynamic quirks list.
145  *
146  * Returns: 0 OK, -error on failure.
147  */
148 static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
149                                 const u32 quirks)
150 {
151         struct quirks_list_struct *q_new, *q;
152         int list_edited = 0;
153
154         if (!idVendor) {
155                 dbg_hid("Cannot add a quirk with idVendor = 0\n");
156                 return -EINVAL;
157         }
158
159         q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL);
160         if (!q_new) {
161                 dbg_hid("Could not allocate quirks_list_struct\n");
162                 return -ENOMEM;
163         }
164
165         q_new->hid_bl_item.idVendor = idVendor;
166         q_new->hid_bl_item.idProduct = idProduct;
167         q_new->hid_bl_item.quirks = quirks;
168
169         down_write(&dquirks_rwsem);
170
171         list_for_each_entry(q, &dquirks_list, node) {
172
173                 if (q->hid_bl_item.idVendor == idVendor &&
174                                 q->hid_bl_item.idProduct == idProduct) {
175
176                         list_replace(&q->node, &q_new->node);
177                         kfree(q);
178                         list_edited = 1;
179                         break;
180
181                 }
182
183         }
184
185         if (!list_edited)
186                 list_add_tail(&q_new->node, &dquirks_list);
187
188         up_write(&dquirks_rwsem);
189
190         return 0;
191 }
192
193 /**
194  * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory
195  *
196  * Description:
197  *         Free all memory associated with dynamic quirks - called before
198  *         module unload.
199  *
200  */
201 static void usbhid_remove_all_dquirks(void)
202 {
203         struct quirks_list_struct *q, *temp;
204
205         down_write(&dquirks_rwsem);
206         list_for_each_entry_safe(q, temp, &dquirks_list, node) {
207                 list_del(&q->node);
208                 kfree(q);
209         }
210         up_write(&dquirks_rwsem);
211
212 }
213
214 /** 
215  * usbhid_quirks_init: apply USB HID quirks specified at module load time
216  */
217 int usbhid_quirks_init(char **quirks_param)
218 {
219         u16 idVendor, idProduct;
220         u32 quirks;
221         int n = 0, m;
222
223         for (; n < MAX_USBHID_BOOT_QUIRKS && quirks_param[n]; n++) {
224
225                 m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x",
226                                 &idVendor, &idProduct, &quirks);
227
228                 if (m != 3 ||
229                                 usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) {
230                         printk(KERN_WARNING
231                                         "Could not parse HID quirk module param %s\n",
232                                         quirks_param[n]);
233                 }
234         }
235
236         return 0;
237 }
238
239 /**
240  * usbhid_quirks_exit: release memory associated with dynamic_quirks
241  *
242  * Description:
243  *     Release all memory associated with dynamic quirks.  Called upon
244  *     module unload.
245  *
246  * Returns: nothing
247  */
248 void usbhid_quirks_exit(void)
249 {
250         usbhid_remove_all_dquirks();
251 }
252
253 /**
254  * usbhid_exists_squirk: return any static quirks for a USB HID device
255  * @idVendor: the 16-bit USB vendor ID, in native byteorder
256  * @idProduct: the 16-bit USB product ID, in native byteorder
257  *
258  * Description:
259  *     Given a USB vendor ID and product ID, return a pointer to
260  *     the hid_blacklist entry associated with that device.
261  *
262  * Returns: pointer if quirk found, or NULL if no quirks found.
263  */
264 static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
265                 const u16 idProduct)
266 {
267         const struct hid_blacklist *bl_entry = NULL;
268         int n = 0;
269
270         for (; hid_blacklist[n].idVendor; n++)
271                 if (hid_blacklist[n].idVendor == idVendor &&
272                                 hid_blacklist[n].idProduct == idProduct)
273                         bl_entry = &hid_blacklist[n];
274
275         if (bl_entry != NULL)
276                 dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
277                                 bl_entry->quirks, bl_entry->idVendor, 
278                                 bl_entry->idProduct);
279         return bl_entry;
280 }
281
282 /**
283  * usbhid_lookup_quirk: return any quirks associated with a USB HID device
284  * @idVendor: the 16-bit USB vendor ID, in native byteorder
285  * @idProduct: the 16-bit USB product ID, in native byteorder
286  *
287  * Description:
288  *     Given a USB vendor ID and product ID, return any quirks associated
289  *     with that device.
290  *
291  * Returns: a u32 quirks value.
292  */
293 u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct)
294 {
295         u32 quirks = 0;
296         const struct hid_blacklist *bl_entry = NULL;
297
298         /* NCR devices must not be queried for reports */
299         if (idVendor == USB_VENDOR_ID_NCR &&
300                         idProduct >= USB_DEVICE_ID_NCR_FIRST &&
301                         idProduct <= USB_DEVICE_ID_NCR_LAST)
302                         return HID_QUIRK_NO_INIT_REPORTS;
303
304         down_read(&dquirks_rwsem);
305         bl_entry = usbhid_exists_dquirk(idVendor, idProduct);
306         if (!bl_entry)
307                 bl_entry = usbhid_exists_squirk(idVendor, idProduct);
308         if (bl_entry)
309                 quirks = bl_entry->quirks;
310         up_read(&dquirks_rwsem);
311
312         return quirks;
313 }
314
315 EXPORT_SYMBOL_GPL(usbhid_lookup_quirk);