summaryrefslogtreecommitdiffstats
path: root/sound/soc/blackfin/bfin-eval-adau1701.c
blob: e5550acba2c2c1614dc14a8d738fef611214f508 (plain)
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
/*
 * Machine driver for EVAL-ADAU1701MINIZ 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/module.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>

#include "../codecs/adau1701.h"

static const struct snd_soc_dapm_widget bfin_eval_adau1701_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_LINE("Line Out", NULL),
	SND_SOC_DAPM_LINE("Line In", NULL),
};

static const struct snd_soc_dapm_route bfin_eval_adau1701_dapm_routes[] = {
	{ "Speaker", NULL, "OUT0" },
	{ "Speaker", NULL, "OUT1" },
	{ "Line Out", NULL, "OUT2" },
	{ "Line Out", NULL, "OUT3" },

	{ "IN0", NULL, "Line In" },
	{ "IN1", NULL, "Line In" },
};

static int bfin_eval_adau1701_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;

	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
			SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
	if (ret)
		return ret;

	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
			SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
	if (ret)
		return ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1701_CLK_SRC_OSC, 12288000,
			SND_SOC_CLOCK_IN);

	return ret;
}

static struct snd_soc_ops bfin_eval_adau1701_ops = {
	.hw_params = bfin_eval_adau1701_hw_params,
};

static struct snd_soc_dai_link bfin_eval_adau1701_dai[] = {
	{
		.name = "adau1701",
		.stream_name = "adau1701",
		.cpu_dai_name = "bfin-i2s.0",
		.codec_dai_name = "adau1701",
		.platform_name = "bfin-i2s-pcm-audio",
		.codec_name = "adau1701.0-0034",
		.ops = &bfin_eval_adau1701_ops,
	},
	{
		.name = "adau1701",
		.stream_name = "adau1701",
		.cpu_dai_name = "bfin-i2s.1",
		.codec_dai_name = "adau1701",
		.platform_name = "bfin-i2s-pcm-audio",
		.codec_name = "adau1701.0-0034",
		.ops = &bfin_eval_adau1701_ops,
	},
};

static struct snd_soc_card bfin_eval_adau1701 = {
	.name = "bfin-eval-adau1701",
	.dai_link = &bfin_eval_adau1701_dai[CONFIG_SND_BF5XX_SPORT_NUM],
	.num_links = 1,

	.dapm_widgets		= bfin_eval_adau1701_dapm_widgets,
	.num_dapm_widgets	= ARRAY_SIZE(bfin_eval_adau1701_dapm_widgets),
	.dapm_routes		= bfin_eval_adau1701_dapm_routes,
	.num_dapm_routes	= ARRAY_SIZE(bfin_eval_adau1701_dapm_routes),
};

static int bfin_eval_adau1701_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &bfin_eval_adau1701;

	card->dev = &pdev->dev;

	return snd_soc_register_card(&bfin_eval_adau1701);
}

static int __devexit bfin_eval_adau1701_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 bfin_eval_adau1701_driver = {
	.driver = {
		.name = "bfin-eval-adau1701",
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
	},
	.probe = bfin_eval_adau1701_probe,
	.remove = __devexit_p(bfin_eval_adau1701_remove),
};

static int __init bfin_eval_adau1701_init(void)
{
	return platform_driver_register(&bfin_eval_adau1701_driver);
}
module_init(bfin_eval_adau1701_init);

static void __exit bfin_eval_adau1701_exit(void)
{
	platform_driver_unregister(&bfin_eval_adau1701_driver);
}
module_exit(bfin_eval_adau1701_exit);

MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("ALSA SoC bfin ADAU1701 driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:bfin-eval-adau1701");
OpenPOWER on IntegriCloud