aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/kirkwood/kirkwood-t5325.c
blob: b47cc4e9b746a39dc7d91e86244d430c03b0fde3 (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
/*
 * kirkwood-t5325.c
 *
 * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
 *
 *  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/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/soc.h>
#include <mach/kirkwood.h>
#include <plat/audio.h>
#include <asm/mach-types.h>
#include "../codecs/alc5623.h"

static int t5325_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;
	unsigned int freq;

	freq = params_rate(params) * 256;

	return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);

}

static struct snd_soc_ops t5325_ops = {
	.hw_params = t5325_hw_params,
};

static const struct snd_soc_dapm_widget t5325_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
};

static const struct snd_soc_dapm_route t5325_route[] = {
	{ "Headphone Jack",	NULL,	"HPL" },
	{ "Headphone Jack",	NULL,	"HPR" },

	{"Speaker",		NULL,	"SPKOUT"},
	{"Speaker",		NULL,	"SPKOUTN"},

	{ "MIC1",		NULL,	"Mic Jack" },
	{ "MIC2",		NULL,	"Mic Jack" },
};

static int t5325_dai_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
	snd_soc_dapm_enable_pin(dapm, "Speaker");

	return 0;
}

static struct snd_soc_dai_link t5325_dai[] = {
{
	.name = "ALC5621",
	.stream_name = "ALC5621 HiFi",
	.cpu_dai_name = "kirkwood-i2s",
	.platform_name = "kirkwood-pcm-audio",
	.codec_dai_name = "alc5621-hifi",
	.codec_name = "alc562x-codec.0-001a",
	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
	.ops = &t5325_ops,
	.init = t5325_dai_init,
},
};


static struct snd_soc_card t5325 = {
	.name = "t5325",
	.owner = THIS_MODULE,
	.dai_link = t5325_dai,
	.num_links = ARRAY_SIZE(t5325_dai),

	.dapm_widgets = t5325_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(t5325_dapm_widgets),
	.dapm_routes = t5325_route,
	.num_dapm_routes = ARRAY_SIZE(t5325_route),
};

static struct platform_device *t5325_snd_device;

static int __init t5325_init(void)
{
	int ret;

	if (!machine_is_t5325())
		return 0;

	t5325_snd_device = platform_device_alloc("soc-audio", -1);
	if (!t5325_snd_device)
		return -ENOMEM;

	platform_set_drvdata(t5325_snd_device,
			&t5325);

	ret = platform_device_add(t5325_snd_device);
	if (ret) {
		printk(KERN_ERR "%s: platform_device_add failed\n", __func__);
		platform_device_put(t5325_snd_device);
	}

	return ret;
}
module_init(t5325_init);

static void __exit t5325_exit(void)
{
	platform_device_unregister(t5325_snd_device);
}
module_exit(t5325_exit);

MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
MODULE_DESCRIPTION("ALSA SoC t5325 audio client");
MODULE_LICENSE("GPL");