1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
|
/*
* linux/drivers/input/keyboard/cec_keyboard.c
*
* CEC Keyboard driver
*
* Copyright (C) 2012 Texas Instruments, Inc
* Author: Muralidhar Dixit <murali.dixit@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/kernel.h>
#include <linux/input/cec_keyboard.h>
#include <linux/input.h>
#include <video/cec.h>
static const char name[] = "cec_keyboard";
struct cec_keyboard {
struct input_dev *cec_input_dev;
struct cec_dev cecdev;
} cec_keyboard_dev;
static const int cec_keymap[] = {
KEY_ENTER,/*0*/
KEY_UP,
KEY_DOWN,
KEY_LEFT,
KEY_RIGHT,
-1,/*5*/
-1,
-1,
-1,
KEY_HOME,
-1,/*0xa--setup menu*/
-1,/*0xb-content menu*/
-1,/*0xc fav menu*/
KEY_BACK,/*0xd*/
-1,
-1,
-1,/*0x10*/
-1,
-1,
-1,/*0x13*/
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,/*0x1c*/
-1,/*0x1d -Num entry mode*/
-1,/*0x1e-num 11*/
-1,/*0x1f-num 12*/
KEY_0,/*0x20*/
KEY_1,
KEY_2,
KEY_3,
KEY_4,
KEY_5,
KEY_6,
KEY_7,
KEY_8,
KEY_9,/*0x29*/
KEY_DOT,
KEY_ENTER,
KEY_CLEAR,
-1,
-1,/**/
-1,/*0x2f-next fav*/
KEY_CHANNELUP,
KEY_CHANNELDOWN,
-1,
-1,
-1,
-1,/*0x35-display info*/
KEY_HELP,
KEY_PAGEUP,
KEY_PAGEDOWN,
-1,/*0x39*/
-1,
-1,
-1,
-1,
-1,
-1,
KEY_POWER,/*0x40*/
KEY_VOLUMEUP,
KEY_VOLUMEDOWN,
KEY_MUTE,
KEY_PLAY,
KEY_STOP,/*0x45*/
KEY_PAUSE,
KEY_RECORD,
KEY_REWIND,
KEY_FASTFORWARD,
KEY_EJECTCD,/*0x4a*/
KEY_FORWARD,
KEY_BACK,
KEY_STOP,/*0x4d-stop record*/
KEY_PAUSE,/*Pause record*/
KEY_ANGLE,/*0x50*/
-1,/*SUB Picture*/
-1,/*Video on demand*/
KEY_EPG,
-1,/*0x54-Time Programming*/
-1,
-1,
-1,
-1,
-1,
-1,/*0x5a*/
-1,
-1,
-1,
-1,
-1,
-1,/*0x60*/
-1,
-1,
-1,
-1,
-1,/*0x65*/
-1,
-1,
-1,
-1,
-1,/*0x6a*/
-1,
KEY_POWER,/*0x6c-Power OFF*/
KEY_POWER,/*0x6d-power ON*/
-1,
-1,
-1,/*0x70*/
KEY_F1,
KEY_F2,
KEY_F3,
KEY_F4,
KEY_F5,
-1
};
static int cec_keyboard_register(void)
{
int r;
int i;
pr_debug("CEC_KEYBOARD: allocate input device\n");
cec_keyboard_dev.cec_input_dev = input_allocate_device();
if (!cec_keyboard_dev.cec_input_dev) {
pr_err("CEC:KEYBOARD: failed to allcate input device\n");
r = -ENOMEM;
return r;
}
cec_keyboard_dev.cec_input_dev->name = name;
__set_bit(EV_KEY, cec_keyboard_dev.cec_input_dev->evbit);
for (i = 0; i < (sizeof(cec_keymap)/sizeof(int)); i++) {
if (cec_keymap[i] != -1)
__set_bit(cec_keymap[i],
cec_keyboard_dev.cec_input_dev->keybit);
}
pr_debug("CEC_KEYBOARD: set input capability\n");
input_set_capability(cec_keyboard_dev.cec_input_dev, EV_KEY, MSC_RAW);
pr_debug("CEC_KEYBOARD: register input device\n");
r = input_register_device(cec_keyboard_dev.cec_input_dev);
if (r < 0) {
pr_err("CEC_KEYBOARD:failed to register input device\n");
input_free_device(cec_keyboard_dev.cec_input_dev);
return r;
}
return 0;
}
static int cec_keyboard_unregister(void)
{
input_unregister_device(cec_keyboard_dev.cec_input_dev);
input_free_device(cec_keyboard_dev.cec_input_dev);
return 0;
}
static int on_hdmi_connect(unsigned char status)
{
int r = 0;
if (status) {
/*HDMI is connected*/
pr_debug("CEC_KEYBOARD:HDMI connected\n");
r = cec_keyboard_register();
if (r)
return r;
/*Enable UI call backs from the CEC driver*/
r = cec_enable_ui_event(true);
} else
cec_keyboard_unregister();
return r;
}
static int cec_ui_event(unsigned char val, unsigned char pressed)
{
if (val > (sizeof(cec_keymap)/sizeof(int)))
return 0;
else if (cec_keymap[val] >= 0) {
/*TODO: For some keys we might have to send the
key value as zero
*/
input_report_key(cec_keyboard_dev.cec_input_dev,
cec_keymap[val], pressed);
input_sync(cec_keyboard_dev.cec_input_dev);
}
return 0;
}
int cec_keyboard_get_device(struct cec_keyboard_device *dev)
{
if (dev == NULL)
return -EINVAL;
dev->connect = on_hdmi_connect;
dev->key_event = cec_ui_event;
return 0;
}
EXPORT_SYMBOL(cec_keyboard_get_device);
static int __init cec_keyboard_init(void)
{
return 0;
}
static void __exit cec_keyboard_exit(void)
{
cec_keyboard_dev.cec_input_dev = NULL;
}
/*-----------------------------------------------------------------------------
*-----------------------------------------------------------------------------
*/
early_initcall(cec_keyboard_init);
module_exit(cec_keyboard_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("CEC Keboard module");
MODULE_AUTHOR("Muralidhar Dixit");
|
