LXR linux/drivers/hid/hid-twinhan.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * HID driver for TwinHan IR remote control
   4 *
   5 * Based on hid-gyration.c
   6 *
   7 * Copyright (c) 2009 Bruno Prémont <bonbons@linux-vserver.org>
   8 */
   9
  10/*
  11 */
  12
  13#include <linux/device.h>
  14#include <linux/input.h>
  15#include <linux/hid.h>
  16#include <linux/module.h>
  17
  18#include "hid-ids.h"
  19
  20/*      Remote control key layout + listing:
  21 *
  22 *      Full Screen                              Power
  23 *      KEY_SCREEN                          KEY_POWER2
  24 *
  25 *      1                     2                      3
  26 *      KEY_NUMERIC_1   KEY_NUMERIC_2    KEY_NUMERIC_3
  27 *
  28 *      4                     5                      6
  29 *      KEY_NUMERIC_4   KEY_NUMERIC_5    KEY_NUMERIC_6
  30 *
  31 *      7                     8                      9
  32 *      KEY_NUMERIC_7   KEY_NUMERIC_8    KEY_NUMERIC_9
  33 *
  34 *      REC                   0               Favorite
  35 *      KEY_RECORD      KEY_NUMERIC_0    KEY_FAVORITES
  36 *
  37 *      Rewind                                 Forward
  38 *      KEY_REWIND           CH+           KEY_FORWARD
  39 *                     KEY_CHANNELUP
  40 *
  41 *      VOL-                  >                   VOL+
  42 *      KEY_VOLUMEDOWN    KEY_PLAY        KEY_VOLUMEUP
  43 *
  44 *                           CH-
  45 *                    KEY_CHANNELDOWN
  46 *      Recall                                    Stop
  47 *      KEY_RESTART                           KEY_STOP
  48 *
  49 *      Timeshift/Pause     Mute                Cancel
  50 *      KEY_PAUSE         KEY_MUTE          KEY_CANCEL
  51 *
  52 *      Capture            Preview                 EPG
  53 *      KEY_PRINT        KEY_PROGRAM           KEY_EPG
  54 *
  55 *      Record List          Tab              Teletext
  56 *      KEY_LIST            KEY_TAB           KEY_TEXT
  57 */
  58
  59#define th_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  60                                        EV_KEY, (c))
  61static int twinhan_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  62                struct hid_field *field, struct hid_usage *usage,
  63                unsigned long **bit, int *max)
  64{
  65        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_KEYBOARD)
  66                return 0;
  67
  68        switch (usage->hid & HID_USAGE) {
  69        /* Map all keys from Twinhan Remote */
  70        case 0x004: th_map_key_clear(KEY_TEXT);         break;
  71        case 0x006: th_map_key_clear(KEY_RESTART);      break;
  72        case 0x008: th_map_key_clear(KEY_EPG);          break;
  73        case 0x00c: th_map_key_clear(KEY_REWIND);       break;
  74        case 0x00e: th_map_key_clear(KEY_PROGRAM);      break;
  75        case 0x00f: th_map_key_clear(KEY_LIST);         break;
  76        case 0x010: th_map_key_clear(KEY_MUTE);         break;
  77        case 0x011: th_map_key_clear(KEY_FORWARD);      break;
  78        case 0x013: th_map_key_clear(KEY_PRINT);        break;
  79        case 0x017: th_map_key_clear(KEY_PAUSE);        break;
  80        case 0x019: th_map_key_clear(KEY_FAVORITES);    break;
  81        case 0x01d: th_map_key_clear(KEY_SCREEN);       break;
  82        case 0x01e: th_map_key_clear(KEY_NUMERIC_1);    break;
  83        case 0x01f: th_map_key_clear(KEY_NUMERIC_2);    break;
  84        case 0x020: th_map_key_clear(KEY_NUMERIC_3);    break;
  85        case 0x021: th_map_key_clear(KEY_NUMERIC_4);    break;
  86        case 0x022: th_map_key_clear(KEY_NUMERIC_5);    break;
  87        case 0x023: th_map_key_clear(KEY_NUMERIC_6);    break;
  88        case 0x024: th_map_key_clear(KEY_NUMERIC_7);    break;
  89        case 0x025: th_map_key_clear(KEY_NUMERIC_8);    break;
  90        case 0x026: th_map_key_clear(KEY_NUMERIC_9);    break;
  91        case 0x027: th_map_key_clear(KEY_NUMERIC_0);    break;
  92        case 0x028: th_map_key_clear(KEY_PLAY);         break;
  93        case 0x029: th_map_key_clear(KEY_CANCEL);       break;
  94        case 0x02b: th_map_key_clear(KEY_TAB);          break;
  95        /* Power       = 0x0e0 + 0x0e1 + 0x0e2 + 0x03f */
  96        case 0x03f: th_map_key_clear(KEY_POWER2);       break;
  97        case 0x04a: th_map_key_clear(KEY_RECORD);       break;
  98        case 0x04b: th_map_key_clear(KEY_CHANNELUP);    break;
  99        case 0x04d: th_map_key_clear(KEY_STOP);         break;
 100        case 0x04e: th_map_key_clear(KEY_CHANNELDOWN);  break;
 101        /* Volume down = 0x0e1 + 0x051                 */
 102        case 0x051: th_map_key_clear(KEY_VOLUMEDOWN);   break;
 103        /* Volume up   = 0x0e1 + 0x052                 */
 104        case 0x052: th_map_key_clear(KEY_VOLUMEUP);     break;
 105        /* Kill the extra keys used for multi-key "power" and "volume" keys
 106         * as well as continuously to release CTRL,ALT,META,... keys */
 107        case 0x0e0:
 108        case 0x0e1:
 109        case 0x0e2:
 110        case 0x0e3:
 111        case 0x0e4:
 112        case 0x0e5:
 113        case 0x0e6:
 114        case 0x0e7:
 115        default:
 116                return -1;
 117        }
 118        return 1;
 119}
 120
 121static const struct hid_device_id twinhan_devices[] = {
 122        { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
 123        { }
 124};
 125MODULE_DEVICE_TABLE(hid, twinhan_devices);
 126
 127static struct hid_driver twinhan_driver = {
 128        .name = "twinhan",
 129        .id_table = twinhan_devices,
 130        .input_mapping = twinhan_input_mapping,
 131};
 132module_hid_driver(twinhan_driver);
 133
 134MODULE_LICENSE("GPL");
 135