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
|
/*
gpio functions.
Merging GPIO support into driver:
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "ivtv-driver.h"
#include "ivtv-cards.h"
#include "ivtv-gpio.h"
#include <media/tuner.h>
/*
* GPIO assignment of Yuan MPG600/MPG160
*
* bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0
* OUTPUT IN1 IN0 AM3 AM2 AM1 AM0
* INPUT DM1 DM0
*
* IN* : Input selection
* IN1 IN0
* 1 1 N/A
* 1 0 Line
* 0 1 N/A
* 0 0 Tuner
*
* AM* : Audio Mode
* AM3 0: Normal 1: Mixed(Sub+Main channel)
* AM2 0: Subchannel 1: Main channel
* AM1 0: Stereo 1: Mono
* AM0 0: Normal 1: Mute
*
* DM* : Detected tuner audio Mode
* DM1 0: Stereo 1: Mono
* DM0 0: Multiplex 1: Normal
*
* GPIO Initial Settings
* MPG600 MPG160
* DIR 0x3080 0x7080
* OUTPUT 0x000C 0x400C
*
* Special thanks to Makoto Iguchi <iguchi@tahoo.org> and Mr. Anonymous
* for analyzing GPIO of MPG160.
*
*****************************************************************************
*
* GPIO assignment of Avermedia M179 (per information direct from AVerMedia)
*
* bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0
* OUTPUT IN0 AM0 IN1 AM1 AM2 IN2 BR0 BR1
* INPUT
*
* IN* : Input selection
* IN0 IN1 IN2
* * 1 * Mute
* 0 0 0 Line-In
* 1 0 0 TV Tuner Audio
* 0 0 1 FM Audio
* 1 0 1 Mute
*
* AM* : Audio Mode
* AM0 AM1 AM2
* 0 0 0 TV Tuner Audio: L_OUT=(L+R)/2, R_OUT=SAP
* 0 0 1 TV Tuner Audio: L_OUT=R_OUT=SAP (SAP)
* 0 1 0 TV Tuner Audio: L_OUT=L, R_OUT=R (stereo)
* 0 1 1 TV Tuner Audio: mute
* 1 * * TV Tuner Audio: L_OUT=R_OUT=(L+R)/2 (mono)
*
* BR* : Audio Sample Rate (BR stands for bitrate for some reason)
* BR0 BR1
* 0 0 32 kHz
* 0 1 44.1 kHz
* 1 0 48 kHz
*
* DM* : Detected tuner audio Mode
* Unknown currently
*
* Special thanks to AVerMedia Technologies, Inc. and Jiun-Kuei Jung at
* AVerMedia for providing the GPIO information used to add support
* for the M179 cards.
*/
/********************* GPIO stuffs *********************/
/* GPIO registers */
#define IVTV_REG_GPIO_IN 0x9008
#define IVTV_REG_GPIO_OUT 0x900c
#define IVTV_REG_GPIO_DIR 0x9020
void ivtv_reset_ir_gpio(struct ivtv *itv)
{
int curdir, curout;
if (itv->card->type != IVTV_CARD_PVR_150)
return;
IVTV_DEBUG_INFO("Resetting PVR150 IR\n");
curout = read_reg(IVTV_REG_GPIO_OUT);
curdir = read_reg(IVTV_REG_GPIO_DIR);
curdir |= 0x80;
write_reg(curdir, IVTV_REG_GPIO_DIR);
curout = (curout & ~0xF) | 1;
write_reg(curout, IVTV_REG_GPIO_OUT);
/* We could use something else for smaller time */
schedule_timeout_interruptible(msecs_to_jiffies(1));
curout |= 2;
write_reg(curout, IVTV_REG_GPIO_OUT);
curdir &= ~0x80;
write_reg(curdir, IVTV_REG_GPIO_DIR);
}
void ivtv_gpio_init(struct ivtv *itv)
{
if (itv->card->gpio_init.direction == 0)
return;
IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n",
read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT));
/* init output data then direction */
write_reg(itv->card->gpio_init.initial_value, IVTV_REG_GPIO_OUT);
write_reg(itv->card->gpio_init.direction, IVTV_REG_GPIO_DIR);
}
static struct v4l2_queryctrl gpio_ctrl_mute = {
.id = V4L2_CID_AUDIO_MUTE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 1,
.flags = 0,
};
int ivtv_gpio(struct ivtv *itv, unsigned int command, void *arg)
{
struct v4l2_tuner *tuner = arg;
struct v4l2_control *ctrl = arg;
struct v4l2_routing *route = arg;
u16 mask, data;
switch (command) {
case VIDIOC_INT_AUDIO_CLOCK_FREQ:
mask = itv->card->gpio_audio_freq.mask;
switch (*(u32 *)arg) {
case 32000:
data = itv->card->gpio_audio_freq.f32000;
break;
case 44100:
data = itv->card->gpio_audio_freq.f44100;
break;
case 48000:
default:
data = itv->card->gpio_audio_freq.f48000;
break;
}
break;
case VIDIOC_G_TUNER:
mask = itv->card->gpio_audio_detect.mask;
if (mask == 0 || (read_reg(IVTV_REG_GPIO_IN) & mask))
tuner->rxsubchans = V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
else
tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
return 0;
case VIDIOC_S_TUNER:
mask = itv->card->gpio_audio_mode.mask;
switch (tuner->audmode) {
case V4L2_TUNER_MODE_LANG1:
data = itv->card->gpio_audio_mode.lang1;
break;
case V4L2_TUNER_MODE_LANG2:
data = itv->card->gpio_audio_mode.lang2;
break;
case V4L2_TUNER_MODE_MONO:
data = itv->card->gpio_audio_mode.mono;
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
default:
data = itv->card->gpio_audio_mode.stereo;
break;
}
break;
case AUDC_SET_RADIO:
mask = itv->card->gpio_audio_input.mask;
data = itv->card->gpio_audio_input.radio;
break;
case VIDIOC_S_STD:
mask = itv->card->gpio_audio_input.mask;
data = itv->card->gpio_audio_input.tuner;
break;
case VIDIOC_INT_S_AUDIO_ROUTING:
if (route->input > 2)
return -EINVAL;
mask = itv->card->gpio_audio_input.mask;
switch (route->input) {
case 0:
data = itv->card->gpio_audio_input.tuner;
break;
case 1:
data = itv->card->gpio_audio_input.linein;
break;
case 2:
default:
data = itv->card->gpio_audio_input.radio;
break;
}
break;
case VIDIOC_G_CTRL:
if (ctrl->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
mask = itv->card->gpio_audio_mute.mask;
data = itv->card->gpio_audio_mute.mute;
ctrl->value = (read_reg(IVTV_REG_GPIO_OUT) & mask) == data;
return 0;
case VIDIOC_S_CTRL:
if (ctrl->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
mask = itv->card->gpio_audio_mute.mask;
data = ctrl->value ? itv->card->gpio_audio_mute.mute : 0;
break;
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *qc = arg;
if (qc->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
*qc = gpio_ctrl_mute;
return 0;
}
case VIDIOC_LOG_STATUS:
IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n",
read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT),
read_reg(IVTV_REG_GPIO_IN));
return 0;
case VIDIOC_INT_S_VIDEO_ROUTING:
if (route->input > 2) /* 0:Tuner 1:Composite 2:S-Video */
return -EINVAL;
mask = itv->card->gpio_video_input.mask;
if (route->input == 0)
data = itv->card->gpio_video_input.tuner;
else if (route->input == 1)
data = itv->card->gpio_video_input.composite;
else
data = itv->card->gpio_video_input.svideo;
break;
default:
return -EINVAL;
}
if (mask)
write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
return 0;
}
|
