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)) 61 static 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 } 120 121 static const struct hid_device_id twinhan_devices[] = { 122 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) }, 123 { } 124 }; 125 MODULE_DEVICE_TABLE(hid, twinhan_devices); 126 127 static struct hid_driver twinhan_driver = { 128 .name = "twinhan", 129 .id_table = twinhan_devices, 130 .input_mapping = twinhan_input_mapping, 131 }; 132 module_hid_driver(twinhan_driver); 133 134 MODULE_LICENSE("GPL"); 135