HID: Force input registration for "VEC footpedal"
[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_DWAV_EGALAX_MULTITOUCH, HID_QUIRK_MULTI_INPUT },
37         { USB_VENDOR_ID_MOJO, USB_DEVICE_ID_RETRO_ADAPTER, HID_QUIRK_MULTI_INPUT },
38         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
39         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
40         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
41         { USB_VENDOR_ID_NATSU, USB_DEVICE_ID_NATSU_GAMEPAD, HID_QUIRK_BADPAD },
42         { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD },
43         { USB_VENDOR_ID_NEXTWINDOW, USB_DEVICE_ID_NEXTWINDOW_TOUCHSCREEN, HID_QUIRK_MULTI_INPUT},
44         { USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },
45         { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
46
47         { USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL },
48
49         { USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH, HID_QUIRK_MULTI_INPUT },
50         { USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
51         { USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT },
52         { USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS, HID_QUIRK_MULTI_INPUT },
53
54         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
55         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
56         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
57         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
58         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
59         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK, HID_QUIRK_NOGET },
60         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE, HID_QUIRK_NOGET },
61         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE, HID_QUIRK_NOGET },
62         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS, HID_QUIRK_NOGET },
63         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
64         { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
65         { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
66         { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
67         { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
68         { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
69         { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
70         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
71         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT },
72         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
73         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
74
75         { USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
76         { USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
77
78         { USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL, HID_QUIRK_HIDINPUT_FORCE },
79
80         { 0, 0 }
81 };
82
83 /* Dynamic HID quirks list - specified at runtime */
84 struct quirks_list_struct {
85         struct hid_blacklist hid_bl_item;
86         struct list_head node;
87 };
88
89 static LIST_HEAD(dquirks_list);
90 static DECLARE_RWSEM(dquirks_rwsem);
91
92 /* Runtime ("dynamic") quirks manipulation functions */
93
94 /**
95  * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device
96  * @idVendor: the 16-bit USB vendor ID, in native byteorder
97  * @idProduct: the 16-bit USB product ID, in native byteorder
98  *
99  * Description:
100  *         Scans dquirks_list for a matching dynamic quirk and returns
101  *         the pointer to the relevant struct hid_blacklist if found.
102  *         Must be called with a read lock held on dquirks_rwsem.
103  *
104  * Returns: NULL if no quirk found, struct hid_blacklist * if found.
105  */
106 static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor,
107                 const u16 idProduct)
108 {
109         struct quirks_list_struct *q;
110         struct hid_blacklist *bl_entry = NULL;
111
112         list_for_each_entry(q, &dquirks_list, node) {
113                 if (q->hid_bl_item.idVendor == idVendor &&
114                                 q->hid_bl_item.idProduct == idProduct) {
115                         bl_entry = &q->hid_bl_item;
116                         break;
117                 }
118         }
119
120         if (bl_entry != NULL)
121                 dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
122                                 bl_entry->quirks, bl_entry->idVendor,
123                                 bl_entry->idProduct);
124
125         return bl_entry;
126 }
127
128
129 /**
130  * usbhid_modify_dquirk: add/replace a HID quirk
131  * @idVendor: the 16-bit USB vendor ID, in native byteorder
132  * @idProduct: the 16-bit USB product ID, in native byteorder
133  * @quirks: the u32 quirks value to add/replace
134  *
135  * Description:
136  *         If an dynamic quirk exists in memory for this (idVendor,
137  *         idProduct) pair, replace its quirks value with what was
138  *         provided.  Otherwise, add the quirk to the dynamic quirks list.
139  *
140  * Returns: 0 OK, -error on failure.
141  */
142 static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
143                                 const u32 quirks)
144 {
145         struct quirks_list_struct *q_new, *q;
146         int list_edited = 0;
147
148         if (!idVendor) {
149                 dbg_hid("Cannot add a quirk with idVendor = 0\n");
150                 return -EINVAL;
151         }
152
153         q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL);
154         if (!q_new) {
155                 dbg_hid("Could not allocate quirks_list_struct\n");
156                 return -ENOMEM;
157         }
158
159         q_new->hid_bl_item.idVendor = idVendor;
160         q_new->hid_bl_item.idProduct = idProduct;
161         q_new->hid_bl_item.quirks = quirks;
162
163         down_write(&dquirks_rwsem);
164
165         list_for_each_entry(q, &dquirks_list, node) {
166
167                 if (q->hid_bl_item.idVendor == idVendor &&
168                                 q->hid_bl_item.idProduct == idProduct) {
169
170                         list_replace(&q->node, &q_new->node);
171                         kfree(q);
172                         list_edited = 1;
173                         break;
174
175                 }
176
177         }
178
179         if (!list_edited)
180                 list_add_tail(&q_new->node, &dquirks_list);
181
182         up_write(&dquirks_rwsem);
183
184         return 0;
185 }
186
187 /**
188  * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory
189  *
190  * Description:
191  *         Free all memory associated with dynamic quirks - called before
192  *         module unload.
193  *
194  */
195 static void usbhid_remove_all_dquirks(void)
196 {
197         struct quirks_list_struct *q, *temp;
198
199         down_write(&dquirks_rwsem);
200         list_for_each_entry_safe(q, temp, &dquirks_list, node) {
201                 list_del(&q->node);
202                 kfree(q);
203         }
204         up_write(&dquirks_rwsem);
205
206 }
207
208 /** 
209  * usbhid_quirks_init: apply USB HID quirks specified at module load time
210  */
211 int usbhid_quirks_init(char **quirks_param)
212 {
213         u16 idVendor, idProduct;
214         u32 quirks;
215         int n = 0, m;
216
217         for (; n < MAX_USBHID_BOOT_QUIRKS && quirks_param[n]; n++) {
218
219                 m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x",
220                                 &idVendor, &idProduct, &quirks);
221
222                 if (m != 3 ||
223                                 usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) {
224                         printk(KERN_WARNING
225                                         "Could not parse HID quirk module param %s\n",
226                                         quirks_param[n]);
227                 }
228         }
229
230         return 0;
231 }
232
233 /**
234  * usbhid_quirks_exit: release memory associated with dynamic_quirks
235  *
236  * Description:
237  *     Release all memory associated with dynamic quirks.  Called upon
238  *     module unload.
239  *
240  * Returns: nothing
241  */
242 void usbhid_quirks_exit(void)
243 {
244         usbhid_remove_all_dquirks();
245 }
246
247 /**
248  * usbhid_exists_squirk: return any static quirks for a USB HID device
249  * @idVendor: the 16-bit USB vendor ID, in native byteorder
250  * @idProduct: the 16-bit USB product ID, in native byteorder
251  *
252  * Description:
253  *     Given a USB vendor ID and product ID, return a pointer to
254  *     the hid_blacklist entry associated with that device.
255  *
256  * Returns: pointer if quirk found, or NULL if no quirks found.
257  */
258 static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
259                 const u16 idProduct)
260 {
261         const struct hid_blacklist *bl_entry = NULL;
262         int n = 0;
263
264         for (; hid_blacklist[n].idVendor; n++)
265                 if (hid_blacklist[n].idVendor == idVendor &&
266                                 hid_blacklist[n].idProduct == idProduct)
267                         bl_entry = &hid_blacklist[n];
268
269         if (bl_entry != NULL)
270                 dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
271                                 bl_entry->quirks, bl_entry->idVendor, 
272                                 bl_entry->idProduct);
273         return bl_entry;
274 }
275
276 /**
277  * usbhid_lookup_quirk: return any quirks associated with a USB HID device
278  * @idVendor: the 16-bit USB vendor ID, in native byteorder
279  * @idProduct: the 16-bit USB product ID, in native byteorder
280  *
281  * Description:
282  *     Given a USB vendor ID and product ID, return any quirks associated
283  *     with that device.
284  *
285  * Returns: a u32 quirks value.
286  */
287 u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct)
288 {
289         u32 quirks = 0;
290         const struct hid_blacklist *bl_entry = NULL;
291
292         /* NCR devices must not be queried for reports */
293         if (idVendor == USB_VENDOR_ID_NCR &&
294                         idProduct >= USB_DEVICE_ID_NCR_FIRST &&
295                         idProduct <= USB_DEVICE_ID_NCR_LAST)
296                         return HID_QUIRK_NO_INIT_REPORTS;
297
298         down_read(&dquirks_rwsem);
299         bl_entry = usbhid_exists_dquirk(idVendor, idProduct);
300         if (!bl_entry)
301                 bl_entry = usbhid_exists_squirk(idVendor, idProduct);
302         if (bl_entry)
303                 quirks = bl_entry->quirks;
304         up_read(&dquirks_rwsem);
305
306         return quirks;
307 }
308
309 EXPORT_SYMBOL_GPL(usbhid_lookup_quirk);