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
|
/*
* Tobermory audio support
*
* Copyright 2011 Wolfson Microelectronics
*
* 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.
*/
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/jack.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include "../codecs/wm8962.h"
static int sample_rate = 44100;
static int tobermory_set_bias_level(struct snd_soc_card *card,
struct snd_soc_dapm_context *dapm,
enum snd_soc_bias_level level)
{
struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
int ret;
if (dapm->dev != codec_dai->dev)
return 0;
switch (level) {
case SND_SOC_BIAS_PREPARE:
if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
WM8962_FLL_MCLK, 32768,
sample_rate * 512);
if (ret < 0)
pr_err("Failed to start FLL: %d\n", ret);
ret = snd_soc_dai_set_sysclk(codec_dai,
WM8962_SYSCLK_FLL,
sample_rate * 512,
SND_SOC_CLOCK_IN);
if (ret < 0) {
pr_err("Failed to set SYSCLK: %d\n", ret);
return ret;
}
}
break;
default:
break;
}
return 0;
}
static int tobermory_set_bias_level_post(struct snd_soc_card *card,
struct snd_soc_dapm_context *dapm,
enum snd_soc_bias_level level)
{
struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
int ret;
if (dapm->dev != codec_dai->dev)
return 0;
switch (level) {
case SND_SOC_BIAS_STANDBY:
ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
32768, SND_SOC_CLOCK_IN);
if (ret < 0) {
pr_err("Failed to switch away from FLL: %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
0, 0, 0);
if (ret < 0) {
pr_err("Failed to stop FLL: %d\n", ret);
return ret;
}
break;
default:
break;
}
dapm->bias_level = level;
return 0;
}
static int tobermory_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
sample_rate = params_rate(params);
return 0;
}
static struct snd_soc_ops tobermory_ops = {
.hw_params = tobermory_hw_params,
};
static struct snd_soc_dai_link tobermory_dai[] = {
{
.name = "CPU",
.stream_name = "CPU",
.cpu_dai_name = "samsung-i2s.0",
.codec_dai_name = "wm8962",
.platform_name = "samsung-i2s.0",
.codec_name = "wm8962.1-001a",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM,
.ops = &tobermory_ops,
},
};
static const struct snd_kcontrol_new controls[] = {
SOC_DAPM_PIN_SWITCH("Main Speaker"),
SOC_DAPM_PIN_SWITCH("DMIC"),
};
static struct snd_soc_dapm_widget widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("DMIC", NULL),
SND_SOC_DAPM_MIC("AMIC", NULL),
SND_SOC_DAPM_SPK("Main Speaker", NULL),
};
static struct snd_soc_dapm_route audio_paths[] = {
{ "Headphone", NULL, "HPOUTL" },
{ "Headphone", NULL, "HPOUTR" },
{ "Main Speaker", NULL, "SPKOUTL" },
{ "Main Speaker", NULL, "SPKOUTR" },
{ "Headset Mic", NULL, "MICBIAS" },
{ "IN4L", NULL, "Headset Mic" },
{ "IN4R", NULL, "Headset Mic" },
{ "AMIC", NULL, "MICBIAS" },
{ "IN1L", NULL, "AMIC" },
{ "IN1R", NULL, "AMIC" },
{ "DMIC", NULL, "MICBIAS" },
{ "DMICDAT", NULL, "DMIC" },
};
static struct snd_soc_jack tobermory_headset;
/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin tobermory_headset_pins[] = {
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
{
.pin = "Headphone",
.mask = SND_JACK_MICROPHONE,
},
};
static int tobermory_late_probe(struct snd_soc_card *card)
{
struct snd_soc_codec *codec = card->rtd[0].codec;
struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
int ret;
ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
32768, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
ret = snd_soc_jack_new(codec, "Headset",
SND_JACK_HEADSET | SND_JACK_BTN_0,
&tobermory_headset);
if (ret)
return ret;
ret = snd_soc_jack_add_pins(&tobermory_headset,
ARRAY_SIZE(tobermory_headset_pins),
tobermory_headset_pins);
if (ret)
return ret;
wm8962_mic_detect(codec, &tobermory_headset);
return 0;
}
static struct snd_soc_card tobermory = {
.name = "Tobermory",
.owner = THIS_MODULE,
.dai_link = tobermory_dai,
.num_links = ARRAY_SIZE(tobermory_dai),
.set_bias_level = tobermory_set_bias_level,
.set_bias_level_post = tobermory_set_bias_level_post,
.controls = controls,
.num_controls = ARRAY_SIZE(controls),
.dapm_widgets = widgets,
.num_dapm_widgets = ARRAY_SIZE(widgets),
.dapm_routes = audio_paths,
.num_dapm_routes = ARRAY_SIZE(audio_paths),
.fully_routed = true,
.late_probe = tobermory_late_probe,
};
static __devinit int tobermory_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &tobermory;
int ret;
card->dev = &pdev->dev;
ret = snd_soc_register_card(card);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
ret);
return ret;
}
return 0;
}
static int __devexit tobermory_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static struct platform_driver tobermory_driver = {
.driver = {
.name = "tobermory",
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
},
.probe = tobermory_probe,
.remove = __devexit_p(tobermory_remove),
};
module_platform_driver(tobermory_driver);
MODULE_DESCRIPTION("Tobermory audio support");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:tobermory");
|
