1 /*
2 * linux/sound/soc/pxa/brownstone.c
3 *
4 * Copyright (C) 2011 Marvell International Ltd.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 */
12
13 #include <linux/module.h>
14 #include <sound/core.h>
15 #include <sound/pcm.h>
16 #include <sound/soc.h>
17 #include <sound/jack.h>
18
19 #include "../codecs/wm8994.h"
20 #include "mmp-sspa.h"
21
22 static const struct snd_kcontrol_new brownstone_dapm_control[] = {
23 SOC_DAPM_PIN_SWITCH("Ext Spk"),
24 };
25
26 static const struct snd_soc_dapm_widget brownstone_dapm_widgets[] = {
27 SND_SOC_DAPM_SPK("Ext Spk", NULL),
28 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
29 SND_SOC_DAPM_MIC("Headset Mic", NULL),
30 SND_SOC_DAPM_MIC("Main Mic", NULL),
31 };
32
33 static const struct snd_soc_dapm_route brownstone_audio_map[] = {
34 {"Ext Spk", NULL, "SPKOUTLP"},
35 {"Ext Spk", NULL, "SPKOUTLN"},
36 {"Ext Spk", NULL, "SPKOUTRP"},
37 {"Ext Spk", NULL, "SPKOUTRN"},
38
39 {"Headset Stereophone", NULL, "HPOUT1L"},
40 {"Headset Stereophone", NULL, "HPOUT1R"},
41
42 {"IN1RN", NULL, "Headset Mic"},
43
44 {"DMIC1DAT", NULL, "MICBIAS1"},
45 {"MICBIAS1", NULL, "Main Mic"},
46 };
47
brownstone_wm8994_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)48 static int brownstone_wm8994_hw_params(struct snd_pcm_substream *substream,
49 struct snd_pcm_hw_params *params)
50 {
51 struct snd_soc_pcm_runtime *rtd = substream->private_data;
52 struct snd_soc_dai *codec_dai = rtd->codec_dai;
53 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
54 int freq_out, sspa_mclk, sysclk;
55
56 if (params_rate(params) > 11025) {
57 freq_out = params_rate(params) * 512;
58 sysclk = params_rate(params) * 256;
59 sspa_mclk = params_rate(params) * 64;
60 } else {
61 freq_out = params_rate(params) * 1024;
62 sysclk = params_rate(params) * 512;
63 sspa_mclk = params_rate(params) * 64;
64 }
65
66 snd_soc_dai_set_sysclk(cpu_dai, MMP_SSPA_CLK_AUDIO, freq_out, 0);
67 snd_soc_dai_set_pll(cpu_dai, MMP_SYSCLK, 0, freq_out, sysclk);
68 snd_soc_dai_set_pll(cpu_dai, MMP_SSPA_CLK, 0, freq_out, sspa_mclk);
69
70 /* set wm8994 sysclk */
71 snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1, sysclk, 0);
72
73 return 0;
74 }
75
76 /* machine stream operations */
77 static struct snd_soc_ops brownstone_ops = {
78 .hw_params = brownstone_wm8994_hw_params,
79 };
80
81 static struct snd_soc_dai_link brownstone_wm8994_dai[] = {
82 {
83 .name = "WM8994",
84 .stream_name = "WM8994 HiFi",
85 .cpu_dai_name = "mmp-sspa-dai.0",
86 .codec_dai_name = "wm8994-aif1",
87 .platform_name = "mmp-pcm-audio",
88 .codec_name = "wm8994-codec",
89 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
90 SND_SOC_DAIFMT_CBS_CFS,
91 .ops = &brownstone_ops,
92 },
93 };
94
95 /* audio machine driver */
96 static struct snd_soc_card brownstone = {
97 .name = "brownstone",
98 .owner = THIS_MODULE,
99 .dai_link = brownstone_wm8994_dai,
100 .num_links = ARRAY_SIZE(brownstone_wm8994_dai),
101
102 .controls = brownstone_dapm_control,
103 .num_controls = ARRAY_SIZE(brownstone_dapm_control),
104 .dapm_widgets = brownstone_dapm_widgets,
105 .num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets),
106 .dapm_routes = brownstone_audio_map,
107 .num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
108 .fully_routed = true,
109 };
110
brownstone_probe(struct platform_device * pdev)111 static int brownstone_probe(struct platform_device *pdev)
112 {
113 int ret;
114
115 brownstone.dev = &pdev->dev;
116 ret = devm_snd_soc_register_card(&pdev->dev, &brownstone);
117 if (ret)
118 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
119 ret);
120 return ret;
121 }
122
123 static struct platform_driver mmp_driver = {
124 .driver = {
125 .name = "brownstone-audio",
126 .pm = &snd_soc_pm_ops,
127 },
128 .probe = brownstone_probe,
129 };
130
131 module_platform_driver(mmp_driver);
132
133 MODULE_AUTHOR("Leo Yan <leoy@marvell.com>");
134 MODULE_DESCRIPTION("ALSA SoC Brownstone");
135 MODULE_LICENSE("GPL");
136 MODULE_ALIAS("platform:brownstone-audio");
137