summaryrefslogtreecommitdiffstats
path: root/sound/soc/pxa/brownstone.c
blob: 5e666e03d3331d39921a95bee2b5dc5e13c55230 (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
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
/*
 * linux/sound/soc/pxa/brownstone.c
 *
 * Copyright (C) 2011 Marvell International 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/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>

#include "../codecs/wm8994.h"
#include "mmp-sspa.h"

static const struct snd_kcontrol_new brownstone_dapm_control[] = {
	SOC_DAPM_PIN_SWITCH("Ext Spk"),
};

static const struct snd_soc_dapm_widget brownstone_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Main Mic", NULL),
};

static const struct snd_soc_dapm_route brownstone_audio_map[] = {
	{"Ext Spk", NULL, "SPKOUTLP"},
	{"Ext Spk", NULL, "SPKOUTLN"},
	{"Ext Spk", NULL, "SPKOUTRP"},
	{"Ext Spk", NULL, "SPKOUTRN"},

	{"Headset Stereophone", NULL, "HPOUT1L"},
	{"Headset Stereophone", NULL, "HPOUT1R"},

	{"IN1RN", NULL, "Headset Mic"},

	{"DMIC1DAT", NULL, "MICBIAS1"},
	{"MICBIAS1", NULL, "Main Mic"},
};

static int brownstone_wm8994_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, "Ext Spk");
	snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
	snd_soc_dapm_enable_pin(dapm, "Headset Mic");
	snd_soc_dapm_enable_pin(dapm, "Main Mic");

	/* set endpoints to not connected */
	snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
	snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
	snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
	snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
	snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
	snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
	snd_soc_dapm_nc_pin(dapm, "IN1LN");
	snd_soc_dapm_nc_pin(dapm, "IN1LP");
	snd_soc_dapm_nc_pin(dapm, "IN1RP");
	snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
	snd_soc_dapm_nc_pin(dapm, "IN2RN");
	snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
	snd_soc_dapm_nc_pin(dapm, "IN2LN");

	snd_soc_dapm_sync(dapm);

	return 0;
}

static int brownstone_wm8994_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;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	int freq_out, sspa_mclk, sysclk;
	int sspa_div;

	if (params_rate(params) > 11025) {
		freq_out  = params_rate(params) * 512;
		sysclk    = params_rate(params) * 256;
		sspa_mclk = params_rate(params) * 64;
	} else {
		freq_out  = params_rate(params) * 1024;
		sysclk    = params_rate(params) * 512;
		sspa_mclk = params_rate(params) * 64;
	}
	sspa_div = freq_out;
	do_div(sspa_div, sspa_mclk);

	snd_soc_dai_set_sysclk(cpu_dai, MMP_SSPA_CLK_AUDIO, freq_out, 0);
	snd_soc_dai_set_pll(cpu_dai, MMP_SYSCLK, 0, freq_out, sysclk);
	snd_soc_dai_set_pll(cpu_dai, MMP_SSPA_CLK, 0, freq_out, sspa_mclk);

	/* set wm8994 sysclk */
	snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1, sysclk, 0);

	return 0;
}

/* machine stream operations */
static struct snd_soc_ops brownstone_ops = {
	.hw_params = brownstone_wm8994_hw_params,
};

static struct snd_soc_dai_link brownstone_wm8994_dai[] = {
{
	.name		= "WM8994",
	.stream_name	= "WM8994 HiFi",
	.cpu_dai_name	= "mmp-sspa-dai.0",
	.codec_dai_name	= "wm8994-aif1",
	.platform_name	= "mmp-pcm-audio",
	.codec_name	= "wm8994-codec",
	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
				SND_SOC_DAIFMT_CBS_CFS,
	.ops		= &brownstone_ops,
	.init		= brownstone_wm8994_init,
},
};

/* audio machine driver */
static struct snd_soc_card brownstone = {
	.name         = "brownstone",
	.dai_link     = brownstone_wm8994_dai,
	.num_links    = ARRAY_SIZE(brownstone_wm8994_dai),

	.controls = brownstone_dapm_control,
	.num_controls = ARRAY_SIZE(brownstone_dapm_control),
	.dapm_widgets = brownstone_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets),
	.dapm_routes = brownstone_audio_map,
	.num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
};

static int __devinit brownstone_probe(struct platform_device *pdev)
{
	int ret;

	brownstone.dev = &pdev->dev;
	ret = snd_soc_register_card(&brownstone);
	if (ret)
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
				ret);
	return ret;
}

static int __devexit brownstone_remove(struct platform_device *pdev)
{
	snd_soc_unregister_card(&brownstone);
	return 0;
}

static struct platform_driver mmp_driver = {
	.driver		= {
		.name	= "brownstone-audio",
		.owner	= THIS_MODULE,
	},
	.probe		= brownstone_probe,
	.remove		= __devexit_p(brownstone_remove),
};

module_platform_driver(mmp_driver);

MODULE_AUTHOR("Leo Yan <leoy@marvell.com>");
MODULE_DESCRIPTION("ALSA SoC Brownstone");
MODULE_LICENSE("GPL");
OpenPOWER on IntegriCloud