aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/blackfin/bfin-eval-adau1x61.c
blob: 4229f76daec9f1eead184dee6cce816e11033674 (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
140
141
/*
 * Machine driver for EVAL-ADAU1x61MINIZ on Analog Devices bfin
 * evaluation boards.
 *
 * Copyright 2011-2014 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 <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>

#include "../codecs/adau17x1.h"

static const struct snd_soc_dapm_widget bfin_eval_adau1x61_dapm_widgets[] = {
	SND_SOC_DAPM_LINE("In 1", NULL),
	SND_SOC_DAPM_LINE("In 2", NULL),
	SND_SOC_DAPM_LINE("In 3-4", NULL),

	SND_SOC_DAPM_LINE("Diff Out L", NULL),
	SND_SOC_DAPM_LINE("Diff Out R", NULL),
	SND_SOC_DAPM_LINE("Stereo Out", NULL),
	SND_SOC_DAPM_HP("Capless HP Out", NULL),
};

static const struct snd_soc_dapm_route bfin_eval_adau1x61_dapm_routes[] = {
	{ "LAUX", NULL, "In 3-4" },
	{ "RAUX", NULL, "In 3-4" },
	{ "LINP", NULL, "In 1" },
	{ "LINN", NULL, "In 1"},
	{ "RINP", NULL, "In 2" },
	{ "RINN", NULL, "In 2" },

	{ "In 1", NULL, "MICBIAS" },
	{ "In 2", NULL, "MICBIAS" },

	{ "Capless HP Out", NULL, "LHP" },
	{ "Capless HP Out", NULL, "RHP" },
	{ "Diff Out L", NULL, "LOUT" },
	{ "Diff Out R", NULL, "ROUT" },
	{ "Stereo Out", NULL, "LOUT" },
	{ "Stereo Out", NULL, "ROUT" },
};

static int bfin_eval_adau1x61_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 pll_rate;
	int ret;

	switch (params_rate(params)) {
	case 48000:
	case 8000:
	case 12000:
	case 16000:
	case 24000:
	case 32000:
	case 96000:
		pll_rate = 48000 * 1024;
		break;
	case 44100:
	case 7350:
	case 11025:
	case 14700:
	case 22050:
	case 29400:
	case 88200:
		pll_rate = 44100 * 1024;
		break;
	default:
		return -EINVAL;
	}

	ret = snd_soc_dai_set_pll(codec_dai, ADAU17X1_PLL,
			ADAU17X1_PLL_SRC_MCLK, 12288000, pll_rate);
	if (ret)
		return ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, ADAU17X1_CLK_SRC_PLL, pll_rate,
			SND_SOC_CLOCK_IN);

	return ret;
}

static const struct snd_soc_ops bfin_eval_adau1x61_ops = {
	.hw_params = bfin_eval_adau1x61_hw_params,
};

static struct snd_soc_dai_link bfin_eval_adau1x61_dai = {
	.name = "adau1x61",
	.stream_name = "adau1x61",
	.cpu_dai_name = "bfin-i2s.0",
	.codec_dai_name = "adau-hifi",
	.platform_name = "bfin-i2s-pcm-audio",
	.codec_name = "adau1761.0-0038",
	.ops = &bfin_eval_adau1x61_ops,
	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
		SND_SOC_DAIFMT_CBM_CFM,
};

static struct snd_soc_card bfin_eval_adau1x61 = {
	.name = "bfin-eval-adau1x61",
	.driver_name = "eval-adau1x61",
	.dai_link = &bfin_eval_adau1x61_dai,
	.num_links = 1,

	.dapm_widgets = bfin_eval_adau1x61_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1x61_dapm_widgets),
	.dapm_routes = bfin_eval_adau1x61_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1x61_dapm_routes),
	.fully_routed = true,
};

static int bfin_eval_adau1x61_probe(struct platform_device *pdev)
{
	bfin_eval_adau1x61.dev = &pdev->dev;

	return devm_snd_soc_register_card(&pdev->dev, &bfin_eval_adau1x61);
}

static struct platform_driver bfin_eval_adau1x61_driver = {
	.driver = {
		.name = "bfin-eval-adau1x61",
		.pm = &snd_soc_pm_ops,
	},
	.probe = bfin_eval_adau1x61_probe,
};
module_platform_driver(bfin_eval_adau1x61_driver);

MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("ALSA SoC bfin adau1x61 driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:bfin-eval-adau1x61");

Privacy Policy