linux/drivers/hid/hid-tivo.c
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   1/*
   2 *  HID driver for TiVo Slide Bluetooth remote
   3 *
   4 *  Copyright (c) 2011 Jarod Wilson <jarod@redhat.com>
   5 *  based on the hid-topseed driver, which is in turn, based on hid-cherry...
   6 */
   7
   8/*
   9 * This program is free software; you can redistribute it and/or modify it
  10 * under the terms of the GNU General Public License as published by the Free
  11 * Software Foundation; either version 2 of the License, or (at your option)
  12 * any later version.
  13 */
  14
  15#include <linux/device.h>
  16#include <linux/hid.h>
  17#include <linux/module.h>
  18
  19#include "hid-ids.h"
  20
  21#define HID_UP_TIVOVENDOR       0xffff0000
  22#define tivo_map_key_clear(c)   hid_map_usage_clear(hi, usage, bit, max, \
  23                                        EV_KEY, (c))
  24
  25static int tivo_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  26                struct hid_field *field, struct hid_usage *usage,
  27                unsigned long **bit, int *max)
  28{
  29        switch (usage->hid & HID_USAGE_PAGE) {
  30        case HID_UP_TIVOVENDOR:
  31                switch (usage->hid & HID_USAGE) {
  32                /* TiVo button */
  33                case 0x3d: tivo_map_key_clear(KEY_MEDIA);       break;
  34                /* Live TV */
  35                case 0x3e: tivo_map_key_clear(KEY_TV);          break;
  36                /* Red thumbs down */
  37                case 0x41: tivo_map_key_clear(KEY_KPMINUS);     break;
  38                /* Green thumbs up */
  39                case 0x42: tivo_map_key_clear(KEY_KPPLUS);      break;
  40                default:
  41                        return 0;
  42                }
  43                break;
  44        case HID_UP_CONSUMER:
  45                switch (usage->hid & HID_USAGE) {
  46                /* Enter/Last (default mapping: KEY_LAST) */
  47                case 0x083: tivo_map_key_clear(KEY_ENTER);      break;
  48                /* Info (default mapping: KEY_PROPS) */
  49                case 0x209: tivo_map_key_clear(KEY_INFO);       break;
  50                default:
  51                        return 0;
  52                }
  53                break;
  54        default:
  55                return 0;
  56        }
  57
  58        /* This means we found a matching mapping here, else, look in the
  59         * standard hid mappings in hid-input.c */
  60        return 1;
  61}
  62
  63static const struct hid_device_id tivo_devices[] = {
  64        /* TiVo Slide Bluetooth remote, pairs with a Broadcom dongle */
  65        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
  66        { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
  67        { }
  68};
  69MODULE_DEVICE_TABLE(hid, tivo_devices);
  70
  71static struct hid_driver tivo_driver = {
  72        .name = "tivo_slide",
  73        .id_table = tivo_devices,
  74        .input_mapping = tivo_input_mapping,
  75};
  76
  77static int __init tivo_init(void)
  78{
  79        return hid_register_driver(&tivo_driver);
  80}
  81
  82static void __exit tivo_exit(void)
  83{
  84        hid_unregister_driver(&tivo_driver);
  85}
  86
  87module_init(tivo_init);
  88module_exit(tivo_exit);
  89MODULE_LICENSE("GPL");
  90MODULE_AUTHOR("Jarod Wilson <jarod@redhat.com>");
  91
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