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
|
/*
* watch_ymu831.c
*
* Copyright (c) 2013 Samsung Electronics Co. Ltd
*
* 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 <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/suspend.h>
#include <mach/midas-sound.h>
#include <mach/pmu.h>
#include <mach/regs-clock.h>
#include <mach/watch-sound.h>
#include <plat/gpio-cfg.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include "../codecs/ymu831/ymu831.h"
struct watch_machine_priv {
int (*set_mic_bias) (int on);
int micbias_status;
};
static int watch_hifi_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret;
/* Set the codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM);
if (ret < 0)
return ret;
/* Set the cpu DAI configuration */
ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_clkdiv(codec_dai, MC_ASOC_BCLK_MULT,
MC_ASOC_LRCK_X32);
if (ret < 0)
return ret;
return 0;
}
/*
* WATCH YMU831 DAI operations.
*/
static struct snd_soc_ops watch_hifi_ops = {
.hw_params = watch_hifi_hw_params,
};
const char *micbias_control_text[] = {
"Off", "On"
};
static const struct soc_enum micbias_control_enum[] = {
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(micbias_control_text), micbias_control_text),
};
static int get_micbias_switch(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct watch_machine_priv *machine_watch
= snd_soc_card_get_drvdata(codec->card);
ucontrol->value.integer.value[0] = machine_watch->micbias_status;
return 0;
}
static int set_micbias_switch(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct watch_machine_priv *machine_watch
= snd_soc_card_get_drvdata(codec->card);
int status = ucontrol->value.integer.value[0];
machine_watch->set_mic_bias(status);
machine_watch->micbias_status = status;
return 0;
}
static const struct snd_kcontrol_new watch_controls[] = {
SOC_ENUM_EXT("MICBIAS SWITCH", micbias_control_enum[0],
get_micbias_switch, set_micbias_switch),
};
static struct snd_soc_dai_link watch_dai[] = {
{ /* Primary DAI i/f */
.name = "YMU831 AIF1",
.stream_name = "Pri_Dai",
.cpu_dai_name = "samsung-i2s.0",
.codec_dai_name = "ymu831-da0",
.platform_name = "samsung-audio",
.codec_name = "spi0.0", /* SPI bus:0, chipselect:0 */
.ops = &watch_hifi_ops,
},
};
static struct snd_soc_card ymu831_snd_card = {
.name = "WATCH-YMU831",
.dai_link = watch_dai,
.num_links = ARRAY_SIZE(watch_dai),
.controls = watch_controls,
.num_controls = ARRAY_SIZE(watch_controls),
};
static struct platform_device *watch_snd_device;
static int __devinit snd_watch_probe(struct platform_device *pdev)
{
int ret;
struct watch_machine_priv *machine_watch;
struct watch_audio_platform_data *audio_pdata =
pdev->dev.platform_data;
machine_watch = kzalloc(sizeof *machine_watch, GFP_KERNEL);
if (!machine_watch) {
pr_err("Failed to allocate memory\n");
return -ENOMEM;
}
machine_watch->set_mic_bias = audio_pdata->set_micbias;
snd_soc_card_set_drvdata(&ymu831_snd_card, machine_watch);
midas_snd_set_mclk(1, 0);
watch_snd_device = platform_device_alloc("soc-audio", -1);
if (!watch_snd_device) {
ret = -ENOMEM;
goto err_device_alloc;
}
platform_set_drvdata(watch_snd_device, &ymu831_snd_card);
ret = platform_device_add(watch_snd_device);
if (ret) {
platform_device_put(watch_snd_device);
}
return ret;
err_device_alloc:
kfree(machine_watch);
return ret;
}
static int __devexit snd_watch_remove(struct platform_device *pdev)
{
struct watch_machine_priv *machine_watch = snd_soc_card_get_drvdata(&ymu831_snd_card);
platform_device_unregister(watch_snd_device);
kfree(machine_watch);
return 0;
}
static struct platform_driver snd_watch_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "ymu831-card",
},
.probe = snd_watch_probe,
.remove = __devexit_p(snd_watch_remove),
};
static int __init watch_audio_init(void)
{
return platform_driver_register(&snd_watch_driver);
}
module_init(watch_audio_init);
static void __exit watch_audio_exit(void)
{
platform_driver_unregister(&snd_watch_driver);
}
module_exit(watch_audio_exit);
MODULE_DESCRIPTION("ALSA SoC WATCH YMU831");
MODULE_LICENSE("GPL");
|
