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_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 },
  55
  56         { USB_VENDOR_ID_AIREN, USB_DEVICE_ID_AIREN_SLIMPLUS, HID_QUIRK_NOGET },
  57         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
  58         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
  59         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
  60         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
  61         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
  62         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK, HID_QUIRK_NOGET },
  63         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE, HID_QUIRK_NOGET },
  64         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE, HID_QUIRK_NOGET },
  65         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_THROTTLE, HID_QUIRK_NOGET },
  66         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS, HID_QUIRK_NOGET },
  67         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
  68         { USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
  69         { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
  70         { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
  71         { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
  72         { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
  73         { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET },
  74         { USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GX680R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS },
  75         { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS },
  76         { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS },
  77         { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS },
  78         { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
  79         { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
  80         { USB_VENDOR_ID_REALTEK, USB_DEVICE_ID_REALTEK_READER, HID_QUIRK_NO_INIT_REPORTS },
  81         { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
  82         { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET },
  83         { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET },
  84         { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
  85         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
  86         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT },
  87         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5, HID_QUIRK_MULTI_INPUT },
  88         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60, HID_QUIRK_MULTI_INPUT },
  89         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U, HID_QUIRK_MULTI_INPUT },
  90         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U, HID_QUIRK_MULTI_INPUT },
  91         { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH, HID_QUIRK_MULTI_INPUT },
  92         { USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH, HID_QUIRK_MULTI_INPUT },
  93         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
  94
  95         { USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
  96
  97         { USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL, HID_QUIRK_HIDINPUT_FORCE },
  98
  99         { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT },
 100         { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT },
 101         { USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS },
 102         { USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS },
 103         { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS1, HID_QUIRK_NO_INIT_REPORTS },
 104         { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS2, HID_QUIRK_NO_INIT_REPORTS },
 105         { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_HD, HID_QUIRK_NO_INIT_REPORTS },
 106
 107         { 0, 0 }
 108 };
 109
 110 /* Dynamic HID quirks list - specified at runtime */
 111 struct quirks_list_struct {
 112         struct hid_blacklist hid_bl_item;
 113         struct list_head node;
 114 };
 115
 116 static LIST_HEAD(dquirks_list);
 117 static DECLARE_RWSEM(dquirks_rwsem);
 118
 119 /* Runtime ("dynamic") quirks manipulation functions */
 120
 121 /**
 122  * usbhid_exists_dquirk: find any dynamic quirks for a USB HID device
 123  * @idVendor: the 16-bit USB vendor ID, in native byteorder
 124  * @idProduct: the 16-bit USB product ID, in native byteorder
 125  *
 126  * Description:
 127  *         Scans dquirks_list for a matching dynamic quirk and returns
 128  *         the pointer to the relevant struct hid_blacklist if found.
 129  *         Must be called with a read lock held on dquirks_rwsem.
 130  *
 131  * Returns: NULL if no quirk found, struct hid_blacklist * if found.
 132  */
 133 static struct hid_blacklist *usbhid_exists_dquirk(const u16 idVendor,
 134                 const u16 idProduct)
 135 {
 136         struct quirks_list_struct *q;
 137         struct hid_blacklist *bl_entry = NULL;
 138
 139         list_for_each_entry(q, &dquirks_list, node) {
 140                 if (q->hid_bl_item.idVendor == idVendor &&
 141                                 q->hid_bl_item.idProduct == idProduct) {
 142                         bl_entry = &q->hid_bl_item;
 143                         break;
 144                 }
 145         }
 146
 147         if (bl_entry != NULL)
 148                 dbg_hid("Found dynamic quirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
 149                                 bl_entry->quirks, bl_entry->idVendor,
 150                                 bl_entry->idProduct);
 151
 152         return bl_entry;
 153 }
 154
 155
 156 /**
 157  * usbhid_modify_dquirk: add/replace a HID quirk
 158  * @idVendor: the 16-bit USB vendor ID, in native byteorder
 159  * @idProduct: the 16-bit USB product ID, in native byteorder
 160  * @quirks: the u32 quirks value to add/replace
 161  *
 162  * Description:
 163  *         If an dynamic quirk exists in memory for this (idVendor,
 164  *         idProduct) pair, replace its quirks value with what was
 165  *         provided.  Otherwise, add the quirk to the dynamic quirks list.
 166  *
 167  * Returns: 0 OK, -error on failure.
 168  */
 169 static int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct,
 170                                 const u32 quirks)
 171 {
 172         struct quirks_list_struct *q_new, *q;
 173         int list_edited = 0;
 174
 175         if (!idVendor) {
 176                 dbg_hid("Cannot add a quirk with idVendor = 0\n");
 177                 return -EINVAL;
 178         }
 179
 180         q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL);
 181         if (!q_new) {
 182                 dbg_hid("Could not allocate quirks_list_struct\n");
 183                 return -ENOMEM;
 184         }
 185
 186         q_new->hid_bl_item.idVendor = idVendor;
 187         q_new->hid_bl_item.idProduct = idProduct;
 188         q_new->hid_bl_item.quirks = quirks;
 189
 190         down_write(&dquirks_rwsem);
 191
 192         list_for_each_entry(q, &dquirks_list, node) {
 193
 194                 if (q->hid_bl_item.idVendor == idVendor &&
 195                                 q->hid_bl_item.idProduct == idProduct) {
 196
 197                         list_replace(&q->node, &q_new->node);
 198                         kfree(q);
 199                         list_edited = 1;
 200                         break;
 201
 202                 }
 203
 204         }
 205
 206         if (!list_edited)
 207                 list_add_tail(&q_new->node, &dquirks_list);
 208
 209         up_write(&dquirks_rwsem);
 210
 211         return 0;
 212 }
 213
 214 /**
 215  * usbhid_remove_all_dquirks: remove all runtime HID quirks from memory
 216  *
 217  * Description:
 218  *         Free all memory associated with dynamic quirks - called before
 219  *         module unload.
 220  *
 221  */
 222 static void usbhid_remove_all_dquirks(void)
 223 {
 224         struct quirks_list_struct *q, *temp;
 225
 226         down_write(&dquirks_rwsem);
 227         list_for_each_entry_safe(q, temp, &dquirks_list, node) {
 228                 list_del(&q->node);
 229                 kfree(q);
 230         }
 231         up_write(&dquirks_rwsem);
 232
 233 }
 234
 235 /**
 236  * usbhid_quirks_init: apply USB HID quirks specified at module load time
 237  */
 238 int usbhid_quirks_init(char **quirks_param)
 239 {
 240         u16 idVendor, idProduct;
 241         u32 quirks;
 242         int n = 0, m;
 243
 244         for (; n < MAX_USBHID_BOOT_QUIRKS && quirks_param[n]; n++) {
 245
 246                 m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x",
 247                                 &idVendor, &idProduct, &quirks);
 248
 249                 if (m != 3 ||
 250                                 usbhid_modify_dquirk(idVendor, idProduct, quirks) != 0) {
 251                         printk(KERN_WARNING
 252                                         "Could not parse HID quirk module param %s\n",
 253                                         quirks_param[n]);
 254                 }
 255         }
 256
 257         return 0;
 258 }
 259
 260 /**
 261  * usbhid_quirks_exit: release memory associated with dynamic_quirks
 262  *
 263  * Description:
 264  *     Release all memory associated with dynamic quirks.  Called upon
 265  *     module unload.
 266  *
 267  * Returns: nothing
 268  */
 269 void usbhid_quirks_exit(void)
 270 {
 271         usbhid_remove_all_dquirks();
 272 }
 273
 274 /**
 275  * usbhid_exists_squirk: return any static quirks for a USB HID device
 276  * @idVendor: the 16-bit USB vendor ID, in native byteorder
 277  * @idProduct: the 16-bit USB product ID, in native byteorder
 278  *
 279  * Description:
 280  *     Given a USB vendor ID and product ID, return a pointer to
 281  *     the hid_blacklist entry associated with that device.
 282  *
 283  * Returns: pointer if quirk found, or NULL if no quirks found.
 284  */
 285 static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
 286                 const u16 idProduct)
 287 {
 288         const struct hid_blacklist *bl_entry = NULL;
 289         int n = 0;
 290
 291         for (; hid_blacklist[n].idVendor; n++)
 292                 if (hid_blacklist[n].idVendor == idVendor &&
 293                                 hid_blacklist[n].idProduct == idProduct)
 294                         bl_entry = &hid_blacklist[n];
 295
 296         if (bl_entry != NULL)
 297                 dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
 298                                 bl_entry->quirks, bl_entry->idVendor,
 299                                 bl_entry->idProduct);
 300         return bl_entry;
 301 }
 302
 303 /**
 304  * usbhid_lookup_quirk: return any quirks associated with a USB HID device
 305  * @idVendor: the 16-bit USB vendor ID, in native byteorder
 306  * @idProduct: the 16-bit USB product ID, in native byteorder
 307  *
 308  * Description:
 309  *     Given a USB vendor ID and product ID, return any quirks associated
 310  *     with that device.
 311  *
 312  * Returns: a u32 quirks value.
 313  */
 314 u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct)
 315 {
 316         u32 quirks = 0;
 317         const struct hid_blacklist *bl_entry = NULL;
 318
 319         /* NCR devices must not be queried for reports */
 320         if (idVendor == USB_VENDOR_ID_NCR &&
 321                         idProduct >= USB_DEVICE_ID_NCR_FIRST &&
 322                         idProduct <= USB_DEVICE_ID_NCR_LAST)
 323                         return HID_QUIRK_NO_INIT_REPORTS;
 324
 325         down_read(&dquirks_rwsem);
 326         bl_entry = usbhid_exists_dquirk(idVendor, idProduct);
 327         if (!bl_entry)
 328                 bl_entry = usbhid_exists_squirk(idVendor, idProduct);
 329         if (bl_entry)
 330                 quirks = bl_entry->quirks;
 331         up_read(&dquirks_rwsem);
 332
 333         return quirks;
 334 }
 335
 336 EXPORT_SYMBOL_GPL(usbhid_lookup_quirk);