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 #define MS_RDESC_3K             0x40
  32
  33 static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  34                 unsigned int *rsize)
  35 {
  36         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
  37
  38         /*
  39          * Microsoft Wireless Desktop Receiver (Model 1028) has
  40          * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
  41          */
  42         if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
  43                         rdesc[559] == 0x29) {
  44                 hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
  45                 rdesc[557] = 0x35;
  46                 rdesc[559] = 0x45;
  47         }
  48         /* the same as above (s/usage/physical/) */
  49         if ((quirks & MS_RDESC_3K) && *rsize == 106 && rdesc[94] == 0x19 &&
  50                         rdesc[95] == 0x00 && rdesc[96] == 0x29 &&
  51                         rdesc[97] == 0xff) {
  52                 rdesc[94] = 0x35;
  53                 rdesc[96] = 0x45;
  54         }
  55         return rdesc;
  56 }
  57
  58 #define ms_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  59                                         EV_KEY, (c))
  60 static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
  61                 unsigned long **bit, int *max)
  62 {
  63         struct input_dev *input = hi->input;
  64
  65         switch (usage->hid & HID_USAGE) {
  66         case 0xfd06: ms_map_key_clear(KEY_CHAT);        break;
  67         case 0xfd07: ms_map_key_clear(KEY_PHONE);       break;
  68         case 0xff05:
  69                 set_bit(EV_REP, input->evbit);
  70                 ms_map_key_clear(KEY_F13);
  71                 set_bit(KEY_F14, input->keybit);
  72                 set_bit(KEY_F15, input->keybit);
  73                 set_bit(KEY_F16, input->keybit);
  74                 set_bit(KEY_F17, input->keybit);
  75                 set_bit(KEY_F18, input->keybit);
  76         default:
  77                 return 0;
  78         }
  79         return 1;
  80 }
  81
  82 static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
  83                 unsigned long **bit, int *max)
  84 {
  85         set_bit(EV_REP, hi->input->evbit);
  86         switch (usage->hid & HID_USAGE) {
  87         case 0xfd08: ms_map_key_clear(KEY_FORWARD);     break;
  88         case 0xfd09: ms_map_key_clear(KEY_BACK);        break;
  89         case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE);   break;
  90         case 0xfd0e: ms_map_key_clear(KEY_CLOSE);       break;
  91         case 0xfd0f: ms_map_key_clear(KEY_PLAY);        break;
  92         default:
  93                 return 0;
  94         }
  95         return 1;
  96 }
  97
  98 static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  99                 struct hid_field *field, struct hid_usage *usage,
 100                 unsigned long **bit, int *max)
 101 {
 102         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 103
 104         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
 105                 return 0;
 106
 107         if (quirks & MS_ERGONOMY) {
 108                 int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
 109                 if (ret)
 110                         return ret;
 111         }
 112
 113         if ((quirks & MS_PRESENTER) &&
 114                         ms_presenter_8k_quirk(hi, usage, bit, max))
 115                 return 1;
 116
 117         return 0;
 118 }
 119
 120 static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 121                 struct hid_field *field, struct hid_usage *usage,
 122                 unsigned long **bit, int *max)
 123 {
 124         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 125
 126         if (quirks & MS_DUPLICATE_USAGES)
 127                 clear_bit(usage->code, *bit);
 128
 129         return 0;
 130 }
 131
 132 static int ms_event(struct hid_device *hdev, struct hid_field *field,
 133                 struct hid_usage *usage, __s32 value)
 134 {
 135         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 136
 137         if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
 138                         !usage->type)
 139                 return 0;
 140
 141         /* Handling MS keyboards special buttons */
 142         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
 143                 struct input_dev *input = field->hidinput->input;
 144                 static unsigned int last_key = 0;
 145                 unsigned int key = 0;
 146                 switch (value) {
 147                 case 0x01: key = KEY_F14; break;
 148                 case 0x02: key = KEY_F15; break;
 149                 case 0x04: key = KEY_F16; break;
 150                 case 0x08: key = KEY_F17; break;
 151                 case 0x10: key = KEY_F18; break;
 152                 }
 153                 if (key) {
 154                         input_event(input, usage->type, key, 1);
 155                         last_key = key;
 156                 } else
 157                         input_event(input, usage->type, last_key, 0);
 158
 159                 return 1;
 160         }
 161
 162         return 0;
 163 }
 164
 165 static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
 166 {
 167         unsigned long quirks = id->driver_data;
 168         int ret;
 169
 170         hid_set_drvdata(hdev, (void *)quirks);
 171
 172         if (quirks & MS_NOGET)
 173                 hdev->quirks |= HID_QUIRK_NOGET;
 174
 175         ret = hid_parse(hdev);
 176         if (ret) {
 177                 hid_err(hdev, "parse failed\n");
 178                 goto err_free;
 179         }
 180
 181         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
 182                                 HID_CONNECT_HIDINPUT_FORCE : 0));
 183         if (ret) {
 184                 hid_err(hdev, "hw start failed\n");
 185                 goto err_free;
 186         }
 187
 188         return 0;
 189 err_free:
 190         return ret;
 191 }
 192
 193 static const struct hid_device_id ms_devices[] = {
 194         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
 195                 .driver_data = MS_HIDINPUT },
 196         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
 197                 .driver_data = MS_ERGONOMY },
 198         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
 199                 .driver_data = MS_ERGONOMY | MS_RDESC },
 200         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
 201                 .driver_data = MS_PRESENTER },
 202         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
 203                 .driver_data = MS_ERGONOMY | MS_RDESC_3K },
 204         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
 205                 .driver_data = MS_NOGET },
 206         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
 207                 .driver_data = MS_DUPLICATE_USAGES },
 208
 209         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
 210                 .driver_data = MS_PRESENTER },
 211         { }
 212 };
 213 MODULE_DEVICE_TABLE(hid, ms_devices);
 214
 215 static struct hid_driver ms_driver = {
 216         .name = "microsoft",
 217         .id_table = ms_devices,
 218         .report_fixup = ms_report_fixup,
 219         .input_mapping = ms_input_mapping,
 220         .input_mapped = ms_input_mapped,
 221         .event = ms_event,
 222         .probe = ms_probe,
 223 };
 224 module_hid_driver(ms_driver);
 225
 226 MODULE_LICENSE("GPL");