hid-twinhan.c revision fa59530267e1006b7180e9ce1dee4136907b2b65 
1/*
2 * HID driver for TwinHan IR remote control
3 *
4 * Based on hid-gyration.c
5 *
6 * Copyright (c) 2009 Bruno Pr�mont <bonbons@linux-vserver.org>
7 */
8
9/*
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the Free
12 * Software Foundation; either version 2 of the License.
13 */
14
15#include <linux/device.h>
16#include <linux/input.h>
17#include <linux/hid.h>
18#include <linux/module.h>
19
20#include "hid-ids.h"
21
22/*	Remote control key layout + listing:
23 *
24 * 	Full Screen                              Power
25 *	KEY_SCREEN                          KEY_POWER2
26 *
27 *	1                     2                      3
28 *	KEY_NUMERIC_1   KEY_NUMERIC_2    KEY_NUMERIC_3
29 *
30 *	4                     5                      6
31 *	KEY_NUMERIC_4   KEY_NUMERIC_5    KEY_NUMERIC_6
32 *
33 *	7                     8                      9
34 *	KEY_NUMERIC_7   KEY_NUMERIC_8    KEY_NUMERIC_9
35 *
36 *	REC                   0               Favorite
37 *	KEY_RECORD      KEY_NUMERIC_0    KEY_FAVORITES
38 *
39 *	Rewind                                 Forward
40 *	KEY_REWIND           CH+           KEY_FORWARD
41 *	               KEY_CHANNELUP
42 *
43 *	VOL-                  >                   VOL+
44 *	KEY_VOLUMEDOWN    KEY_PLAY        KEY_VOLUMEUP
45 *
46 *	                     CH-
47 *	              KEY_CHANNELDOWN
48 *	Recall                                    Stop
49 *	KEY_RESTART                           KEY_STOP
50 *
51 *	Timeshift/Pause     Mute                Cancel
52 *	KEY_PAUSE         KEY_MUTE          KEY_CANCEL
53 *
54 *	Capture            Preview                 EPG
55 *	KEY_PRINT        KEY_PROGRAM           KEY_EPG
56 *
57 *	Record List          Tab              Teletext
58 *	KEY_LIST            KEY_TAB           KEY_TEXT
59 */
60
61#define th_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
62					EV_KEY, (c))
63static int twinhan_input_mapping(struct hid_device *hdev, struct hid_input *hi,
64		struct hid_field *field, struct hid_usage *usage,
65		unsigned long **bit, int *max)
66{
67	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_KEYBOARD)
68		return 0;
69
70	switch (usage->hid & HID_USAGE) {
71	/* Map all keys from Twinhan Remote */
72	case 0x004: th_map_key_clear(KEY_TEXT);         break;
73	case 0x006: th_map_key_clear(KEY_RESTART);      break;
74	case 0x008: th_map_key_clear(KEY_EPG);          break;
75	case 0x00c: th_map_key_clear(KEY_REWIND);       break;
76	case 0x00e: th_map_key_clear(KEY_PROGRAM);      break;
77	case 0x00f: th_map_key_clear(KEY_LIST);         break;
78	case 0x010: th_map_key_clear(KEY_MUTE);         break;
79	case 0x011: th_map_key_clear(KEY_FORWARD);      break;
80	case 0x013: th_map_key_clear(KEY_PRINT);        break;
81	case 0x017: th_map_key_clear(KEY_PAUSE);        break;
82	case 0x019: th_map_key_clear(KEY_FAVORITES);    break;
83	case 0x01d: th_map_key_clear(KEY_SCREEN);       break;
84	case 0x01e: th_map_key_clear(KEY_NUMERIC_1);    break;
85	case 0x01f: th_map_key_clear(KEY_NUMERIC_2);    break;
86	case 0x020: th_map_key_clear(KEY_NUMERIC_3);    break;
87	case 0x021: th_map_key_clear(KEY_NUMERIC_4);    break;
88	case 0x022: th_map_key_clear(KEY_NUMERIC_5);    break;
89	case 0x023: th_map_key_clear(KEY_NUMERIC_6);    break;
90	case 0x024: th_map_key_clear(KEY_NUMERIC_7);    break;
91	case 0x025: th_map_key_clear(KEY_NUMERIC_8);    break;
92	case 0x026: th_map_key_clear(KEY_NUMERIC_9);    break;
93	case 0x027: th_map_key_clear(KEY_NUMERIC_0);    break;
94	case 0x028: th_map_key_clear(KEY_PLAY);         break;
95	case 0x029: th_map_key_clear(KEY_CANCEL);       break;
96	case 0x02b: th_map_key_clear(KEY_TAB);          break;
97	/* Power       = 0x0e0 + 0x0e1 + 0x0e2 + 0x03f */
98	case 0x03f: th_map_key_clear(KEY_POWER2);       break;
99	case 0x04a: th_map_key_clear(KEY_RECORD);       break;
100	case 0x04b: th_map_key_clear(KEY_CHANNELUP);    break;
101	case 0x04d: th_map_key_clear(KEY_STOP);         break;
102	case 0x04e: th_map_key_clear(KEY_CHANNELDOWN);  break;
103	/* Volume down = 0x0e1 + 0x051                 */
104	case 0x051: th_map_key_clear(KEY_VOLUMEDOWN);   break;
105	/* Volume up   = 0x0e1 + 0x052                 */
106	case 0x052: th_map_key_clear(KEY_VOLUMEUP);     break;
107	/* Kill the extra keys used for multi-key "power" and "volume" keys
108	 * as well as continuously to release CTRL,ALT,META,... keys */
109	case 0x0e0:
110	case 0x0e1:
111	case 0x0e2:
112	case 0x0e3:
113	case 0x0e4:
114	case 0x0e5:
115	case 0x0e6:
116	case 0x0e7:
117	default:
118		return -1;
119	}
120	return 1;
121}
122
123static const struct hid_device_id twinhan_devices[] = {
124	{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
125	{ }
126};
127MODULE_DEVICE_TABLE(hid, twinhan_devices);
128
129static struct hid_driver twinhan_driver = {
130	.name = "twinhan",
131	.id_table = twinhan_devices,
132	.input_mapping = twinhan_input_mapping,
133};
134
135static int __init twinhan_init(void)
136{
137	return hid_register_driver(&twinhan_driver);
138}
139
140static void __exit twinhan_exit(void)
141{
142	hid_unregister_driver(&twinhan_driver);
143}
144
145module_init(twinhan_init);
146module_exit(twinhan_exit);
147MODULE_LICENSE("GPL");
148