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) 2007 Paul Walmsley
   9  *  Copyright (c) 2008 Jiri Slaby
  10  */
  11
  12 /*
  13  * This program is free software; you can redistribute it and/or modify it
  14  * under the terms of the GNU General Public License as published by the Free
  15  * Software Foundation; either version 2 of the License, or (at your option)
  16  * any later version.
  17  */
  18
  19 #include <linux/device.h>
  20 #include <linux/input.h>
  21 #include <linux/hid.h>
  22 #include <linux/module.h>
  23
  24 #include "hid-ids.h"
  25
  26 #define MS_HIDINPUT     0x01
  27 #define MS_ERGONOMY     0x02
  28 #define MS_PRESENTER    0x04
  29 #define MS_RDESC        0x08
  30 #define MS_NOGET        0x10
  31
  32 /*
  33  * Microsoft Wireless Desktop Receiver (Model 1028) has several
  34  * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
  35  */
  36 static void ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  37                 unsigned int rsize)
  38 {
  39         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
  40
  41         if ((quirks & MS_RDESC) && rsize == 571 && rdesc[284] == 0x19 &&
  42                         rdesc[286] == 0x2a && rdesc[304] == 0x19 &&
  43                         rdesc[306] == 0x29 && rdesc[352] == 0x1a &&
  44                         rdesc[355] == 0x2a && rdesc[557] == 0x19 &&
  45                         rdesc[559] == 0x29) {
  46                 dev_info(&hdev->dev, "fixing up Microsoft Wireless Receiver "
  47                                 "Model 1028 report descriptor\n");
  48                 rdesc[284] = rdesc[304] = rdesc[557] = 0x35;
  49                 rdesc[352] = 0x36;
  50                 rdesc[286] = rdesc[355] = 0x46;
  51                 rdesc[306] = rdesc[559] = 0x45;
  52         }
  53 }
  54
  55 #define ms_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  56                                         EV_KEY, (c))
  57 static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
  58                 unsigned long **bit, int *max)
  59 {
  60         struct input_dev *input = hi->input;
  61
  62         switch (usage->hid & HID_USAGE) {
  63         case 0xfd06: ms_map_key_clear(KEY_CHAT);        break;
  64         case 0xfd07: ms_map_key_clear(KEY_PHONE);       break;
  65         case 0xff05:
  66                 set_bit(EV_REP, input->evbit);
  67                 ms_map_key_clear(KEY_F13);
  68                 set_bit(KEY_F14, input->keybit);
  69                 set_bit(KEY_F15, input->keybit);
  70                 set_bit(KEY_F16, input->keybit);
  71                 set_bit(KEY_F17, input->keybit);
  72                 set_bit(KEY_F18, input->keybit);
  73         default:
  74                 return 0;
  75         }
  76         return 1;
  77 }
  78
  79 static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
  80                 unsigned long **bit, int *max)
  81 {
  82         set_bit(EV_REP, hi->input->evbit);
  83         switch (usage->hid & HID_USAGE) {
  84         case 0xfd08: ms_map_key_clear(KEY_FORWARD);     break;
  85         case 0xfd09: ms_map_key_clear(KEY_BACK);        break;
  86         case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE);   break;
  87         case 0xfd0e: ms_map_key_clear(KEY_CLOSE);       break;
  88         case 0xfd0f: ms_map_key_clear(KEY_PLAY);        break;
  89         default:
  90                 return 0;
  91         }
  92         return 1;
  93 }
  94
  95 static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  96                 struct hid_field *field, struct hid_usage *usage,
  97                 unsigned long **bit, int *max)
  98 {
  99         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 100
 101         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
 102                 return 0;
 103
 104         if (quirks & MS_ERGONOMY) {
 105                 int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
 106                 if (ret)
 107                         return ret;
 108         }
 109
 110         if ((quirks & MS_PRESENTER) &&
 111                         ms_presenter_8k_quirk(hi, usage, bit, max))
 112                 return 1;
 113
 114         return 0;
 115 }
 116
 117 static int ms_event(struct hid_device *hdev, struct hid_field *field,
 118                 struct hid_usage *usage, __s32 value)
 119 {
 120         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 121
 122         if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
 123                         !usage->type)
 124                 return 0;
 125
 126         /* Handling MS keyboards special buttons */
 127         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
 128                 struct input_dev *input = field->hidinput->input;
 129                 static unsigned int last_key = 0;
 130                 unsigned int key = 0;
 131                 switch (value) {
 132                 case 0x01: key = KEY_F14; break;
 133                 case 0x02: key = KEY_F15; break;
 134                 case 0x04: key = KEY_F16; break;
 135                 case 0x08: key = KEY_F17; break;
 136                 case 0x10: key = KEY_F18; break;
 137                 }
 138                 if (key) {
 139                         input_event(input, usage->type, key, 1);
 140                         last_key = key;
 141                 } else
 142                         input_event(input, usage->type, last_key, 0);
 143
 144                 return 1;
 145         }
 146
 147         return 0;
 148 }
 149
 150 static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
 151 {
 152         unsigned long quirks = id->driver_data;
 153         int ret;
 154
 155         hid_set_drvdata(hdev, (void *)quirks);
 156
 157         if (quirks & MS_NOGET)
 158                 hdev->quirks |= HID_QUIRK_NOGET;
 159
 160         ret = hid_parse(hdev);
 161         if (ret) {
 162                 dev_err(&hdev->dev, "parse failed\n");
 163                 goto err_free;
 164         }
 165
 166         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
 167                                 HID_CONNECT_HIDINPUT_FORCE : 0));
 168         if (ret) {
 169                 dev_err(&hdev->dev, "hw start failed\n");
 170                 goto err_free;
 171         }
 172
 173         return 0;
 174 err_free:
 175         return ret;
 176 }
 177
 178 static const struct hid_device_id ms_devices[] = {
 179         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
 180                 .driver_data = MS_HIDINPUT },
 181         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
 182                 .driver_data = MS_ERGONOMY },
 183         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
 184                 .driver_data = MS_ERGONOMY | MS_RDESC },
 185         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
 186                 .driver_data = MS_PRESENTER },
 187         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
 188                 .driver_data = MS_NOGET },
 189
 190         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
 191                 .driver_data = MS_PRESENTER },
 192         { }
 193 };
 194 MODULE_DEVICE_TABLE(hid, ms_devices);
 195
 196 static struct hid_driver ms_driver = {
 197         .name = "microsoft",
 198         .id_table = ms_devices,
 199         .report_fixup = ms_report_fixup,
 200         .input_mapping = ms_input_mapping,
 201         .event = ms_event,
 202         .probe = ms_probe,
 203 };
 204
 205 static int ms_init(void)
 206 {
 207         return hid_register_driver(&ms_driver);
 208 }
 209
 210 static void ms_exit(void)
 211 {
 212         hid_unregister_driver(&ms_driver);
 213 }
 214
 215 module_init(ms_init);
 216 module_exit(ms_exit);
 217 MODULE_LICENSE("GPL");
 218
 219 HID_COMPAT_LOAD_DRIVER(microsoft);