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
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
|
/*
* dvb-dibusb-remote.c is part of the driver for mobile USB Budget DVB-T devices
* based on reference design made by DiBcom (http://www.dibcom.fr/)
*
* Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
*
* see dvb-dibusb-core.c for more copyright details.
*
* This file contains functions for handling the event device on the software
* side and the remote control on the hardware side.
*/
#include "dvb-dibusb.h"
/* Table to map raw key codes to key events. This should not be hard-wired
into the kernel. */
static const struct { u8 c0, c1, c2; uint32_t key; } nec_rc_keys [] =
{
/* Key codes for the little Artec T1/Twinhan/HAMA/ remote. */
{ 0x00, 0xff, 0x16, KEY_POWER },
{ 0x00, 0xff, 0x10, KEY_MUTE },
{ 0x00, 0xff, 0x03, KEY_1 },
{ 0x00, 0xff, 0x01, KEY_2 },
{ 0x00, 0xff, 0x06, KEY_3 },
{ 0x00, 0xff, 0x09, KEY_4 },
{ 0x00, 0xff, 0x1d, KEY_5 },
{ 0x00, 0xff, 0x1f, KEY_6 },
{ 0x00, 0xff, 0x0d, KEY_7 },
{ 0x00, 0xff, 0x19, KEY_8 },
{ 0x00, 0xff, 0x1b, KEY_9 },
{ 0x00, 0xff, 0x15, KEY_0 },
{ 0x00, 0xff, 0x05, KEY_CHANNELUP },
{ 0x00, 0xff, 0x02, KEY_CHANNELDOWN },
{ 0x00, 0xff, 0x1e, KEY_VOLUMEUP },
{ 0x00, 0xff, 0x0a, KEY_VOLUMEDOWN },
{ 0x00, 0xff, 0x11, KEY_RECORD },
{ 0x00, 0xff, 0x17, KEY_FAVORITES }, /* Heart symbol - Channel list. */
{ 0x00, 0xff, 0x14, KEY_PLAY },
{ 0x00, 0xff, 0x1a, KEY_STOP },
{ 0x00, 0xff, 0x40, KEY_REWIND },
{ 0x00, 0xff, 0x12, KEY_FASTFORWARD },
{ 0x00, 0xff, 0x0e, KEY_PREVIOUS }, /* Recall - Previous channel. */
{ 0x00, 0xff, 0x4c, KEY_PAUSE },
{ 0x00, 0xff, 0x4d, KEY_SCREEN }, /* Full screen mode. */
{ 0x00, 0xff, 0x54, KEY_AUDIO }, /* MTS - Switch to secondary audio. */
/* additional keys TwinHan VisionPlus, the Artec seemingly not have */
{ 0x00, 0xff, 0x0c, KEY_CANCEL }, /* Cancel */
{ 0x00, 0xff, 0x1c, KEY_EPG }, /* EPG */
{ 0x00, 0xff, 0x00, KEY_TAB }, /* Tab */
{ 0x00, 0xff, 0x48, KEY_INFO }, /* Preview */
{ 0x00, 0xff, 0x04, KEY_LIST }, /* RecordList */
{ 0x00, 0xff, 0x0f, KEY_TEXT }, /* Teletext */
/* Key codes for the KWorld/ADSTech/JetWay remote. */
{ 0x86, 0x6b, 0x12, KEY_POWER },
{ 0x86, 0x6b, 0x0f, KEY_SELECT }, /* source */
{ 0x86, 0x6b, 0x0c, KEY_UNKNOWN }, /* scan */
{ 0x86, 0x6b, 0x0b, KEY_EPG },
{ 0x86, 0x6b, 0x10, KEY_MUTE },
{ 0x86, 0x6b, 0x01, KEY_1 },
{ 0x86, 0x6b, 0x02, KEY_2 },
{ 0x86, 0x6b, 0x03, KEY_3 },
{ 0x86, 0x6b, 0x04, KEY_4 },
{ 0x86, 0x6b, 0x05, KEY_5 },
{ 0x86, 0x6b, 0x06, KEY_6 },
{ 0x86, 0x6b, 0x07, KEY_7 },
{ 0x86, 0x6b, 0x08, KEY_8 },
{ 0x86, 0x6b, 0x09, KEY_9 },
{ 0x86, 0x6b, 0x0a, KEY_0 },
{ 0x86, 0x6b, 0x18, KEY_ZOOM },
{ 0x86, 0x6b, 0x1c, KEY_UNKNOWN }, /* preview */
{ 0x86, 0x6b, 0x13, KEY_UNKNOWN }, /* snap */
{ 0x86, 0x6b, 0x00, KEY_UNDO },
{ 0x86, 0x6b, 0x1d, KEY_RECORD },
{ 0x86, 0x6b, 0x0d, KEY_STOP },
{ 0x86, 0x6b, 0x0e, KEY_PAUSE },
{ 0x86, 0x6b, 0x16, KEY_PLAY },
{ 0x86, 0x6b, 0x11, KEY_BACK },
{ 0x86, 0x6b, 0x19, KEY_FORWARD },
{ 0x86, 0x6b, 0x14, KEY_UNKNOWN }, /* pip */
{ 0x86, 0x6b, 0x15, KEY_ESC },
{ 0x86, 0x6b, 0x1a, KEY_UP },
{ 0x86, 0x6b, 0x1e, KEY_DOWN },
{ 0x86, 0x6b, 0x1f, KEY_LEFT },
{ 0x86, 0x6b, 0x1b, KEY_RIGHT },
};
/* Hauppauge NOVA-T USB2 keys */
static const struct { u16 raw; uint32_t key; } haupp_rc_keys [] = {
{ 0xddf, KEY_GOTO },
{ 0xdef, KEY_POWER },
{ 0xce7, KEY_TV },
{ 0xcc7, KEY_VIDEO },
{ 0xccf, KEY_AUDIO },
{ 0xcd7, KEY_MEDIA },
{ 0xcdf, KEY_EPG },
{ 0xca7, KEY_UP },
{ 0xc67, KEY_RADIO },
{ 0xcb7, KEY_LEFT },
{ 0xd2f, KEY_OK },
{ 0xcbf, KEY_RIGHT },
{ 0xcff, KEY_BACK },
{ 0xcaf, KEY_DOWN },
{ 0xc6f, KEY_MENU },
{ 0xc87, KEY_VOLUMEUP },
{ 0xc8f, KEY_VOLUMEDOWN },
{ 0xc97, KEY_CHANNEL },
{ 0xc7f, KEY_MUTE },
{ 0xd07, KEY_CHANNELUP },
{ 0xd0f, KEY_CHANNELDOWN },
{ 0xdbf, KEY_RECORD },
{ 0xdb7, KEY_STOP },
{ 0xd97, KEY_REWIND },
{ 0xdaf, KEY_PLAY },
{ 0xda7, KEY_FASTFORWARD },
{ 0xd27, KEY_LAST }, /* Skip backwards */
{ 0xd87, KEY_PAUSE },
{ 0xcf7, KEY_NEXT },
{ 0xc07, KEY_0 },
{ 0xc0f, KEY_1 },
{ 0xc17, KEY_2 },
{ 0xc1f, KEY_3 },
{ 0xc27, KEY_4 },
{ 0xc2f, KEY_5 },
{ 0xc37, KEY_6 },
{ 0xc3f, KEY_7 },
{ 0xc47, KEY_8 },
{ 0xc4f, KEY_9 },
{ 0xc57, KEY_KPASTERISK },
{ 0xc77, KEY_GRAVE }, /* # */
{ 0xc5f, KEY_RED },
{ 0xd77, KEY_GREEN },
{ 0xdc7, KEY_YELLOW },
{ 0xd4f, KEY_BLUE},
};
static int dibusb_key2event_nec(struct usb_dibusb *dib,u8 rb[5])
{
int i;
switch (rb[0]) {
case DIBUSB_RC_NEC_KEY_PRESSED:
/* rb[1-3] is the actual key, rb[4] is a checksum */
deb_rc("raw key code 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
rb[1], rb[2], rb[3], rb[4]);
if ((0xff - rb[3]) != rb[4]) {
deb_rc("remote control checksum failed.\n");
break;
}
/* See if we can match the raw key code. */
for (i = 0; i < sizeof(nec_rc_keys)/sizeof(nec_rc_keys[0]); i++) {
if (nec_rc_keys[i].c0 == rb[1] &&
nec_rc_keys[i].c1 == rb[2] &&
nec_rc_keys[i].c2 == rb[3]) {
dib->last_event = nec_rc_keys[i].key;
return 1;
}
}
break;
case DIBUSB_RC_NEC_KEY_REPEATED:
/* rb[1]..rb[4] are always zero.*/
/* Repeats often seem to occur so for the moment just ignore this. */
return 0;
case DIBUSB_RC_NEC_EMPTY: /* No (more) remote control keys. */
default:
break;
}
return -1;
}
static int dibusb_key2event_hauppauge(struct usb_dibusb *dib,u8 rb[4])
{
u16 raw;
int i,state;
switch (rb[0]) {
case DIBUSB_RC_HAUPPAUGE_KEY_PRESSED:
raw = ((rb[1] & 0x0f) << 8) | rb[2];
state = !!(rb[1] & 0x40);
deb_rc("raw key code 0x%02x, 0x%02x, 0x%02x to %04x state: %d\n",rb[1],rb[2],rb[3],raw,state);
for (i = 0; i < sizeof(haupp_rc_keys)/sizeof(haupp_rc_keys[0]); i++) {
if (haupp_rc_keys[i].raw == raw) {
if (dib->last_event == haupp_rc_keys[i].key &&
dib->last_state == state) {
deb_rc("key repeat\n");
return 0;
} else {
dib->last_event = haupp_rc_keys[i].key;
dib->last_state = state;
return 1;
}
}
}
break;
case DIBUSB_RC_HAUPPAUGE_KEY_EMPTY:
default:
break;
}
return -1;
}
/*
* Read the remote control and feed the appropriate event.
* NEC protocol is used for remote controls
*/
static int dibusb_read_remote_control(struct usb_dibusb *dib)
{
u8 b[1] = { DIBUSB_REQ_POLL_REMOTE }, rb[5];
int ret,event = 0;
if ((ret = dibusb_readwrite_usb(dib,b,1,rb,5)))
return ret;
switch (dib->dibdev->dev_cl->remote_type) {
case DIBUSB_RC_NEC_PROTOCOL:
event = dibusb_key2event_nec(dib,rb);
break;
case DIBUSB_RC_HAUPPAUGE_PROTO:
event = dibusb_key2event_hauppauge(dib,rb);
default:
break;
}
/* key repeat */
if (event == 0)
if (++dib->repeat_key_count < dib->rc_key_repeat_count) {
deb_rc("key repeat dropped. (%d)\n",dib->repeat_key_count);
event = -1; /* skip this key repeat */
}
if (event == 1 || event == 0) {
deb_rc("Translated key 0x%04x\n",event);
/* Signal down and up events for this key. */
input_report_key(&dib->rc_input_dev, dib->last_event, 1);
input_report_key(&dib->rc_input_dev, dib->last_event, 0);
input_sync(&dib->rc_input_dev);
if (event == 1)
dib->repeat_key_count = 0;
}
return 0;
}
/* Remote-control poll function - called every dib->rc_query_interval ms to see
whether the remote control has received anything. */
static void dibusb_remote_query(void *data)
{
struct usb_dibusb *dib = (struct usb_dibusb *) data;
/* TODO: need a lock here. We can simply skip checking for the remote control
if we're busy. */
dibusb_read_remote_control(dib);
schedule_delayed_work(&dib->rc_query_work,
msecs_to_jiffies(dib->rc_query_interval));
}
int dibusb_remote_init(struct usb_dibusb *dib)
{
int i;
if (dib->dibdev->dev_cl->remote_type == DIBUSB_RC_NO)
return 0;
/* Initialise the remote-control structures.*/
init_input_dev(&dib->rc_input_dev);
dib->rc_input_dev.evbit[0] = BIT(EV_KEY);
dib->rc_input_dev.keycodesize = sizeof(unsigned char);
dib->rc_input_dev.keycodemax = KEY_MAX;
dib->rc_input_dev.name = DRIVER_DESC " remote control";
switch (dib->dibdev->dev_cl->remote_type) {
case DIBUSB_RC_NEC_PROTOCOL:
for (i=0; i<sizeof(nec_rc_keys)/sizeof(nec_rc_keys[0]); i++)
set_bit(nec_rc_keys[i].key, dib->rc_input_dev.keybit);
break;
case DIBUSB_RC_HAUPPAUGE_PROTO:
for (i=0; i<sizeof(haupp_rc_keys)/sizeof(haupp_rc_keys[0]); i++)
set_bit(haupp_rc_keys[i].key, dib->rc_input_dev.keybit);
break;
default:
break;
}
input_register_device(&dib->rc_input_dev);
INIT_WORK(&dib->rc_query_work, dibusb_remote_query, dib);
/* Start the remote-control polling. */
if (dib->rc_query_interval < 40)
dib->rc_query_interval = 100; /* default */
info("schedule remote query interval to %d msecs.",dib->rc_query_interval);
schedule_delayed_work(&dib->rc_query_work,msecs_to_jiffies(dib->rc_query_interval));
dib->init_state |= DIBUSB_STATE_REMOTE;
return 0;
}
int dibusb_remote_exit(struct usb_dibusb *dib)
{
if (dib->dibdev->dev_cl->remote_type == DIBUSB_RC_NO)
return 0;
if (dib->init_state & DIBUSB_STATE_REMOTE) {
cancel_delayed_work(&dib->rc_query_work);
flush_scheduled_work();
input_unregister_device(&dib->rc_input_dev);
}
dib->init_state &= ~DIBUSB_STATE_REMOTE;
return 0;
}
|
