drivers/hid/hid-microsoft.c

   1 /*
   2  *  HID driver for some microsoft "special" devices
   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) 2008 Jiri Slaby
   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/device.h>
  19 #include <linux/input.h>
  20 #include <linux/hid.h>
  21 #include <linux/module.h>
  22
  23 #include "hid-ids.h"
  24
  25 #define MS_HIDINPUT             0x01
  26 #define MS_ERGONOMY             0x02
  27 #define MS_PRESENTER            0x04
  28 #define MS_RDESC                0x08
  29 #define MS_NOGET                0x10
  30 #define MS_DUPLICATE_USAGES     0x20
  31
  32 static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  33                 unsigned int *rsize)
  34 {
  35         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
  36
  37         /*
  38          * Microsoft Wireless Desktop Receiver (Model 1028) has
  39          * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
  40          */
  41         if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
  42                         rdesc[559] == 0x29) {
  43                 hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
  44                 rdesc[557] = 0x35;
  45                 rdesc[559] = 0x45;
  46         }
  47         return rdesc;
  48 }
  49
  50 #define ms_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  51                                         EV_KEY, (c))
  52 static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
  53                 unsigned long **bit, int *max)
  54 {
  55         struct input_dev *input = hi->input;
  56
  57         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
  58                 switch (usage->hid & HID_USAGE) {
  59                 /*
  60                  * Microsoft uses these 2 reserved usage ids for 2 keys on
  61                  * the MS office kb labelled "Office Home" and "Task Pane".
  62                  */
  63                 case 0x29d:
  64                         ms_map_key_clear(KEY_PROG1);
  65                         return 1;
  66                 case 0x29e:
  67                         ms_map_key_clear(KEY_PROG2);
  68                         return 1;
  69                 }
  70                 return 0;
  71         }
  72
  73         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
  74                 return 0;
  75
  76         switch (usage->hid & HID_USAGE) {
  77         case 0xfd06: ms_map_key_clear(KEY_CHAT);        break;
  78         case 0xfd07: ms_map_key_clear(KEY_PHONE);       break;
  79         case 0xff00:
  80                 /* Special keypad keys */
  81                 ms_map_key_clear(KEY_KPEQUAL);
  82                 set_bit(KEY_KPLEFTPAREN, input->keybit);
  83                 set_bit(KEY_KPRIGHTPAREN, input->keybit);
  84                 break;
  85         case 0xff01:
  86                 /* Scroll wheel */
  87                 hid_map_usage_clear(hi, usage, bit, max, EV_REL, REL_WHEEL);
  88                 break;
  89         case 0xff02:
  90                 /*
  91                  * This byte contains a copy of the modifier keys byte of a
  92                  * standard hid keyboard report, as send by interface 0
  93                  * (this usage is found on interface 1).
  94                  *
  95                  * This byte only gets send when another key in the same report
  96                  * changes state, and as such is useless, ignore it.
  97                  */
  98                 return -1;
  99         case 0xff05:
 100                 set_bit(EV_REP, input->evbit);
 101                 ms_map_key_clear(KEY_F13);
 102                 set_bit(KEY_F14, input->keybit);
 103                 set_bit(KEY_F15, input->keybit);
 104                 set_bit(KEY_F16, input->keybit);
 105                 set_bit(KEY_F17, input->keybit);
 106                 set_bit(KEY_F18, input->keybit);
 107                 break;
 108         default:
 109                 return 0;
 110         }
 111         return 1;
 112 }
 113
 114 static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
 115                 unsigned long **bit, int *max)
 116 {
 117         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
 118                 return 0;
 119
 120         set_bit(EV_REP, hi->input->evbit);
 121         switch (usage->hid & HID_USAGE) {
 122         case 0xfd08: ms_map_key_clear(KEY_FORWARD);     break;
 123         case 0xfd09: ms_map_key_clear(KEY_BACK);        break;
 124         case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE);   break;
 125         case 0xfd0e: ms_map_key_clear(KEY_CLOSE);       break;
 126         case 0xfd0f: ms_map_key_clear(KEY_PLAY);        break;
 127         default:
 128                 return 0;
 129         }
 130         return 1;
 131 }
 132
 133 static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 134                 struct hid_field *field, struct hid_usage *usage,
 135                 unsigned long **bit, int *max)
 136 {
 137         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 138
 139         if (quirks & MS_ERGONOMY) {
 140                 int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
 141                 if (ret)
 142                         return ret;
 143         }
 144
 145         if ((quirks & MS_PRESENTER) &&
 146                         ms_presenter_8k_quirk(hi, usage, bit, max))
 147                 return 1;
 148
 149         return 0;
 150 }
 151
 152 static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 153                 struct hid_field *field, struct hid_usage *usage,
 154                 unsigned long **bit, int *max)
 155 {
 156         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 157
 158         if (quirks & MS_DUPLICATE_USAGES)
 159                 clear_bit(usage->code, *bit);
 160
 161         return 0;
 162 }
 163
 164 static int ms_event(struct hid_device *hdev, struct hid_field *field,
 165                 struct hid_usage *usage, __s32 value)
 166 {
 167         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 168         struct input_dev *input;
 169
 170         if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
 171                         !usage->type)
 172                 return 0;
 173
 174         input = field->hidinput->input;
 175
 176         /* Handling MS keyboards special buttons */
 177         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff00)) {
 178                 /* Special keypad keys */
 179                 input_report_key(input, KEY_KPEQUAL, value & 0x01);
 180                 input_report_key(input, KEY_KPLEFTPAREN, value & 0x02);
 181                 input_report_key(input, KEY_KPRIGHTPAREN, value & 0x04);
 182                 return 1;
 183         }
 184
 185         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff01)) {
 186                 /* Scroll wheel */
 187                 int step = ((value & 0x60) >> 5) + 1;
 188
 189                 switch (value & 0x1f) {
 190                 case 0x01:
 191                         input_report_rel(input, REL_WHEEL, step);
 192                         break;
 193                 case 0x1f:
 194                         input_report_rel(input, REL_WHEEL, -step);
 195                         break;
 196                 }
 197                 return 1;
 198         }
 199
 200         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
 201                 static unsigned int last_key = 0;
 202                 unsigned int key = 0;
 203                 switch (value) {
 204                 case 0x01: key = KEY_F14; break;
 205                 case 0x02: key = KEY_F15; break;
 206                 case 0x04: key = KEY_F16; break;
 207                 case 0x08: key = KEY_F17; break;
 208                 case 0x10: key = KEY_F18; break;
 209                 }
 210                 if (key) {
 211                         input_event(input, usage->type, key, 1);
 212                         last_key = key;
 213                 } else
 214                         input_event(input, usage->type, last_key, 0);
 215
 216                 return 1;
 217         }
 218
 219         return 0;
 220 }
 221
 222 static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
 223 {
 224         unsigned long quirks = id->driver_data;
 225         int ret;
 226
 227         hid_set_drvdata(hdev, (void *)quirks);
 228
 229         if (quirks & MS_NOGET)
 230                 hdev->quirks |= HID_QUIRK_NOGET;
 231
 232         ret = hid_parse(hdev);
 233         if (ret) {
 234                 hid_err(hdev, "parse failed\n");
 235                 goto err_free;
 236         }
 237
 238         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
 239                                 HID_CONNECT_HIDINPUT_FORCE : 0));
 240         if (ret) {
 241                 hid_err(hdev, "hw start failed\n");
 242                 goto err_free;
 243         }
 244
 245         return 0;
 246 err_free:
 247         return ret;
 248 }
 249
 250 static const struct hid_device_id ms_devices[] = {
 251         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
 252                 .driver_data = MS_HIDINPUT },
 253         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB),
 254                 .driver_data = MS_ERGONOMY },
 255         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
 256                 .driver_data = MS_ERGONOMY },
 257         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP),
 258                 .driver_data = MS_ERGONOMY },
 259         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE7K),
 260                 .driver_data = MS_ERGONOMY },
 261         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
 262                 .driver_data = MS_ERGONOMY | MS_RDESC },
 263         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
 264                 .driver_data = MS_PRESENTER },
 265         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
 266                 .driver_data = MS_ERGONOMY },
 267         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K),
 268                 .driver_data = MS_ERGONOMY },
 269         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600),
 270                 .driver_data = MS_ERGONOMY },
 271         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3KV1),
 272                 .driver_data = MS_ERGONOMY },
 273         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
 274                 .driver_data = MS_NOGET },
 275         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
 276                 .driver_data = MS_DUPLICATE_USAGES },
 277         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER),
 278                 .driver_data = MS_HIDINPUT },
 279         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD),
 280                 .driver_data = MS_ERGONOMY},
 281
 282         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
 283                 .driver_data = MS_PRESENTER },
 284         { }
 285 };
 286 MODULE_DEVICE_TABLE(hid, ms_devices);
 287
 288 static struct hid_driver ms_driver = {
 289         .name = "microsoft",
 290         .id_table = ms_devices,
 291         .report_fixup = ms_report_fixup,
 292         .input_mapping = ms_input_mapping,
 293         .input_mapped = ms_input_mapped,
 294         .event = ms_event,
 295         .probe = ms_probe,
 296 };
 297 module_hid_driver(ms_driver);
 298
 299 MODULE_LICENSE("GPL");