bfin-eval-adav80x.c
3.96 KB
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
/*
* Machine driver for EVAL-ADAV801 and EVAL-ADAV803 on Analog Devices bfin
* evaluation boards.
*
* Copyright 2011 Analog Devices Inc.
* Author: Lars-Peter Clausen <lars@metafoo.de>
*
* Licensed under the GPL-2 or later.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include "../codecs/adav80x.h"
static const struct snd_soc_dapm_widget bfin_eval_adav80x_dapm_widgets[] = {
SND_SOC_DAPM_LINE("Line Out", NULL),
SND_SOC_DAPM_LINE("Line In", NULL),
};
static const struct snd_soc_dapm_route bfin_eval_adav80x_dapm_routes[] = {
{ "Line Out", NULL, "VOUTL" },
{ "Line Out", NULL, "VOUTR" },
{ "VINL", NULL, "Line In" },
{ "VINR", NULL, "Line In" },
};
static int bfin_eval_adav80x_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 *codec_dai = rtd->codec_dai;
int ret;
ret = snd_soc_dai_set_pll(codec_dai, ADAV80X_PLL1, ADAV80X_PLL_SRC_XTAL,
27000000, params_rate(params) * 256);
if (ret)
return ret;
ret = snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_PLL1,
params_rate(params) * 256, SND_SOC_CLOCK_IN);
return ret;
}
static int bfin_eval_adav80x_codec_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *codec_dai = rtd->codec_dai;
snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK1, 0,
SND_SOC_CLOCK_OUT);
snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK2, 0,
SND_SOC_CLOCK_OUT);
snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK3, 0,
SND_SOC_CLOCK_OUT);
snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_XTAL, 2700000, 0);
return 0;
}
static struct snd_soc_ops bfin_eval_adav80x_ops = {
.hw_params = bfin_eval_adav80x_hw_params,
};
static struct snd_soc_dai_link bfin_eval_adav80x_dais[] = {
{
.name = "adav80x",
.stream_name = "ADAV80x HiFi",
.cpu_dai_name = "bfin-i2s.0",
.codec_dai_name = "adav80x-hifi",
.platform_name = "bfin-i2s-pcm-audio",
.init = bfin_eval_adav80x_codec_init,
.ops = &bfin_eval_adav80x_ops,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM,
},
};
static struct snd_soc_card bfin_eval_adav80x = {
.name = "bfin-eval-adav80x",
.owner = THIS_MODULE,
.dai_link = bfin_eval_adav80x_dais,
.num_links = ARRAY_SIZE(bfin_eval_adav80x_dais),
.dapm_widgets = bfin_eval_adav80x_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(bfin_eval_adav80x_dapm_widgets),
.dapm_routes = bfin_eval_adav80x_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(bfin_eval_adav80x_dapm_routes),
};
enum bfin_eval_adav80x_type {
BFIN_EVAL_ADAV801,
BFIN_EVAL_ADAV803,
};
static int bfin_eval_adav80x_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &bfin_eval_adav80x;
const char *codec_name;
switch (platform_get_device_id(pdev)->driver_data) {
case BFIN_EVAL_ADAV801:
codec_name = "spi0.1";
break;
case BFIN_EVAL_ADAV803:
codec_name = "adav803.0-0034";
break;
default:
return -EINVAL;
}
bfin_eval_adav80x_dais[0].codec_name = codec_name;
card->dev = &pdev->dev;
return snd_soc_register_card(&bfin_eval_adav80x);
}
static int bfin_eval_adav80x_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static const struct platform_device_id bfin_eval_adav80x_ids[] = {
{ "bfin-eval-adav801", BFIN_EVAL_ADAV801 },
{ "bfin-eval-adav803", BFIN_EVAL_ADAV803 },
{ },
};
MODULE_DEVICE_TABLE(platform, bfin_eval_adav80x_ids);
static struct platform_driver bfin_eval_adav80x_driver = {
.driver = {
.name = "bfin-eval-adav80x",
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
},
.probe = bfin_eval_adav80x_probe,
.remove = bfin_eval_adav80x_remove,
.id_table = bfin_eval_adav80x_ids,
};
module_platform_driver(bfin_eval_adav80x_driver);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("ALSA SoC bfin adav80x driver");
MODULE_LICENSE("GPL");