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authorBruno Premont <bonbons@linux-vserver.org>2009-07-13 08:19:58 -0400
committerJiri Kosina <jkosina@suse.cz>2009-07-22 19:28:01 -0400
commit711a680e35059bc5c7c28d3c4bd0bebd3b7bb6ee (patch)
treed2dd5ee35b8b4201583b9791f18173f8a10224cc /drivers/hid/hid-twinhan.c
parenta24f423bdf253ccee369adc6c5451b40a0716fbb (diff)
HID: driver for Twinhan USB 6253:0100 remote control
Add explicit key mappings for TwinHan USB HID remote control. All dummy Ctrl, Alt, Meta, ... key press/release events generated by the remote are silenced by "unmapping" them. This makes Power and Volume keys single-key and strips the regular (even while idle) key release events for Ctrl, Alt, Meta, ... Signed-off-by: Bruno Premont <bonbons@linux-vserver.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-twinhan.c')
-rw-r--r--drivers/hid/hid-twinhan.c147
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/hid/hid-twinhan.c b/drivers/hid/hid-twinhan.c
new file mode 100644
index 000000000000..b05f602c051e
--- /dev/null
+++ b/drivers/hid/hid-twinhan.c
@@ -0,0 +1,147 @@
1/*
2 * HID driver for TwinHan IR remote control
3 *
4 * Based on hid-gyration.c
5 *
6 * Copyright (c) 2009 Bruno Prémont <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 twinhan_init(void)
136{
137 return hid_register_driver(&twinhan_driver);
138}
139
140static void twinhan_exit(void)
141{
142 hid_unregister_driver(&twinhan_driver);
143}
144
145module_init(twinhan_init);
146module_exit(twinhan_exit);
147MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-22 14:42:13 -0500