Pileus Git - ~andy/linux/blob - 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/export.h>
  20 #include <linux/slab.h>
  21
  22 #include "../hid-ids.h"
  23
  24 /*
  25  * Alphabetically sorted blacklist by quirk type.
  26  */
  27
  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 },
  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_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS },
  74         { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS },
  75         { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS },
  76         { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
  77         { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
  78         { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET },
  79         { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
  80         { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET },
  81         { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET },
  82         { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
  83         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
  84         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT },
  85         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5, HID_QUIRK_MULTI_INPUT },
  86         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60, HID_QUIRK_MULTI_INPUT },
  87         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U, HID_QUIRK_MULTI_INPUT },
  88         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U, HID_QUIRK_MULTI_INPUT },
  89         { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH, HID_QUIRK_MULTI_INPUT },
  90         { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH, HID_QUIRK_MULTI_INPUT },
  91         { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET, HID_QUIRK_MULTI_INPUT },
  92         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
  93
  94         { USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
  95
  96         { USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL, HID_QUIRK_HIDINPUT_FORCE },
  97
  98         { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT },
  99         { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT },
 100         { USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS },
 101         { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT },
 102         { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT },
 103         { 0, 0 }
 104 };
 105
 106 /* Dynamic HID quirks list - specified at runtime */
 107 struct quirks_list_struct {
 108         struct hid_blacklist hid_bl_item;
 109         struct list_head node;
 110 };
 111
 112 static LIST_HEAD(dquirks_list);
 113 static DECLARE_RWSEM(dquirks_rwsem);
 114
 115 /* Runtime ("dynamic") quirks manipulation functions */
 116
 117 /**
 118  * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device
 119  * @idVendor: the 16-bit USB vendor ID, in native byteorder
 120  * @idProduct: the 16-bit USB product ID, in native byteorder
 121  *
 122  * Description:
 123  *         Scans dquirks_list for a matching dynamic quirk and returns
 124  *         the pointer to the relevant struct hid_blacklist if found.
 125  *         Must be called with a read lock held on dquirks_rwsem.
 126  *
 127  * Returns: NULL if no quirk found, struct hid_blacklist * if found.
 128  */
 129 static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor,
 130                 const u16 idProduct)
 131 {
 132         struct quirks_list_struct *q;
 133         struct hid_blacklist *bl_entry = NULL;
 134
 135         list_for_each_entry(q, &dquirks_list, node) {
 136                 if (q->hid_bl_item.idVendor == idVendor &&
 137                                 q->hid_bl_item.idProduct == idProduct) {
 138                         bl_entry = &q->hid_bl_item;
 139                         break;
 140                 }
 141         }
 142
 143         if (bl_entry != NULL)
 144                 dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
 145                                 bl_entry->quirks, bl_entry->idVendor,
 146                                 bl_entry->idProduct);
 147
 148         return bl_entry;
 149 }
 150
 151
 152 /**
 153  * usbhid_modify_dquirk: add/replace a HID quirk
 154  * @idVendor: the 16-bit USB vendor ID, in native byteorder
 155  * @idProduct: the 16-bit USB product ID, in native byteorder
 156  * @quirks: the u32 quirks value to add/replace
 157  *
 158  * Description:
 159  *         If an dynamic quirk exists in memory for this (idVendor,
 160  *         idProduct) pair, replace its quirks value with what was
 161  *         provided.  Otherwise, add the quirk to the dynamic quirks list.
 162  *
 163  * Returns: 0 OK, -error on failure.
 164  */
 165 static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
 166                                 const u32 quirks)
 167 {
 168         struct quirks_list_struct *q_new, *q;
 169         int list_edited = 0;
 170
 171         if (!idVendor) {
 172                 dbg_hid("Cannot add a quirk with idVendor = 0\n");
 173                 return -EINVAL;
 174         }
 175
 176         q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL);
 177         if (!q_new) {
 178                 dbg_hid("Could not allocate quirks_list_struct\n");
 179                 return -ENOMEM;
 180         }
 181
 182         q_new->hid_bl_item.idVendor = idVendor;
 183         q_new->hid_bl_item.idProduct = idProduct;
 184         q_new->hid_bl_item.quirks = quirks;
 185
 186         down_write(&dquirks_rwsem);
 187
 188         list_for_each_entry(q, &dquirks_list, node) {
 189
 190                 if (q->hid_bl_item.idVendor == idVendor &&
 191                                 q->hid_bl_item.idProduct == idProduct) {
 192
 193                         list_replace(&q->node, &q_new->node);
 194                         kfree(q);
 195                         list_edited = 1;
 196                         break;
 197
 198                 }
 199
 200         }
 201
 202         if (!list_edited)
 203                 list_add_tail(&q_new->node, &dquirks_list);
 204
 205         up_write(&dquirks_rwsem);
 206
 207         return 0;
 208 }
 209
 210 /**
 211  * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory
 212  *
 213  * Description:
 214  *         Free all memory associated with dynamic quirks - called before
 215  *         module unload.
 216  *
 217  */
 218 static void usbhid_remove_all_dquirks(void)
 219 {
 220         struct quirks_list_struct *q, *temp;
 221
 222         down_write(&dquirks_rwsem);
 223         list_for_each_entry_safe(q, temp, &dquirks_list, node) {
 224                 list_del(&q->node);
 225                 kfree(q);
 226         }
 227         up_write(&dquirks_rwsem);
 228
 229 }
 230
 231 /**
 232  * usbhid_quirks_init: apply USB HID quirks specified at module load time
 233  */
 234 int usbhid_quirks_init(char **quirks_param)
 235 {
 236         u16 idVendor, idProduct;
 237         u32 quirks;
 238         int n = 0, m;
 239
 240         for (; n < MAX_USBHID_BOOT_QUIRKS && quirks_param[n]; n++) {
 241
 242                 m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x",
 243                                 &idVendor, &idProduct, &quirks);
 244
 245                 if (m != 3 ||
 246                                 usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) {
 247                         printk(KERN_WARNING
 248                                         "Could not parse HID quirk module param %s\n",
 249                                         quirks_param[n]);
 250                 }
 251         }
 252
 253         return 0;
 254 }
 255
 256 /**
 257  * usbhid_quirks_exit: release memory associated with dynamic_quirks
 258  *
 259  * Description:
 260  *     Release all memory associated with dynamic quirks.  Called upon
 261  *     module unload.
 262  *
 263  * Returns: nothing
 264  */
 265 void usbhid_quirks_exit(void)
 266 {
 267         usbhid_remove_all_dquirks();
 268 }
 269
 270 /**
 271  * usbhid_exists_squirk: return any static quirks for a USB HID device
 272  * @idVendor: the 16-bit USB vendor ID, in native byteorder
 273  * @idProduct: the 16-bit USB product ID, in native byteorder
 274  *
 275  * Description:
 276  *     Given a USB vendor ID and product ID, return a pointer to
 277  *     the hid_blacklist entry associated with that device.
 278  *
 279  * Returns: pointer if quirk found, or NULL if no quirks found.
 280  */
 281 static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
 282                 const u16 idProduct)
 283 {
 284         const struct hid_blacklist *bl_entry = NULL;
 285         int n = 0;
 286
 287         for (; hid_blacklist[n].idVendor; n++)
 288                 if (hid_blacklist[n].idVendor == idVendor &&
 289                                 hid_blacklist[n].idProduct == idProduct)
 290                         bl_entry = &hid_blacklist[n];
 291
 292         if (bl_entry != NULL)
 293                 dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
 294                                 bl_entry->quirks, bl_entry->idVendor,
 295                                 bl_entry->idProduct);
 296         return bl_entry;
 297 }
 298
 299 /**
 300  * usbhid_lookup_quirk: return any quirks associated with a USB HID device
 301  * @idVendor: the 16-bit USB vendor ID, in native byteorder
 302  * @idProduct: the 16-bit USB product ID, in native byteorder
 303  *
 304  * Description:
 305  *     Given a USB vendor ID and product ID, return any quirks associated
 306  *     with that device.
 307  *
 308  * Returns: a u32 quirks value.
 309  */
 310 u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct)
 311 {
 312         u32 quirks = 0;
 313         const struct hid_blacklist *bl_entry = NULL;
 314
 315         /* NCR devices must not be queried for reports */
 316         if (idVendor == USB_VENDOR_ID_NCR &&
 317                         idProduct >= USB_DEVICE_ID_NCR_FIRST &&
 318                         idProduct <= USB_DEVICE_ID_NCR_LAST)
 319                         return HID_QUIRK_NO_INIT_REPORTS;
 320
 321         down_read(&dquirks_rwsem);
 322         bl_entry = usbhid_exists_dquirk(idVendor, idProduct);
 323         if (!bl_entry)
 324                 bl_entry = usbhid_exists_squirk(idVendor, idProduct);
 325         if (bl_entry)
 326                 quirks = bl_entry->quirks;
 327         up_read(&dquirks_rwsem);
 328
 329         return quirks;
 330 }
 331
 332 EXPORT_SYMBOL_GPL(usbhid_lookup_quirk);