2 * linux/sound/soc/pxa/brownstone.c
4 * Copyright (C) 2011 Marvell International Ltd.
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.
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>
19 #include "../codecs/wm8994.h"
22 static const struct snd_kcontrol_new brownstone_dapm_control[] = {
23 SOC_DAPM_PIN_SWITCH("Ext Spk"),
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),
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"},
39 {"Headset Stereophone", NULL, "HPOUT1L"},
40 {"Headset Stereophone", NULL, "HPOUT1R"},
42 {"IN1RN", NULL, "Headset Mic"},
44 {"DMIC1DAT", NULL, "MICBIAS1"},
45 {"MICBIAS1", NULL, "Main Mic"},
48 static int brownstone_wm8994_init(struct snd_soc_pcm_runtime *rtd)
50 struct snd_soc_codec *codec = rtd->codec;
51 struct snd_soc_dapm_context *dapm = &codec->dapm;
53 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
54 snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
55 snd_soc_dapm_enable_pin(dapm, "Headset Mic");
56 snd_soc_dapm_enable_pin(dapm, "Main Mic");
58 /* set endpoints to not connected */
59 snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
60 snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
61 snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
62 snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
63 snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
64 snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
65 snd_soc_dapm_nc_pin(dapm, "IN1LN");
66 snd_soc_dapm_nc_pin(dapm, "IN1LP");
67 snd_soc_dapm_nc_pin(dapm, "IN1RP");
68 snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
69 snd_soc_dapm_nc_pin(dapm, "IN2RN");
70 snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
71 snd_soc_dapm_nc_pin(dapm, "IN2LN");
76 static int brownstone_wm8994_hw_params(struct snd_pcm_substream *substream,
77 struct snd_pcm_hw_params *params)
79 struct snd_soc_pcm_runtime *rtd = substream->private_data;
80 struct snd_soc_dai *codec_dai = rtd->codec_dai;
81 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
82 int freq_out, sspa_mclk, sysclk;
85 if (params_rate(params) > 11025) {
86 freq_out = params_rate(params) * 512;
87 sysclk = params_rate(params) * 256;
88 sspa_mclk = params_rate(params) * 64;
90 freq_out = params_rate(params) * 1024;
91 sysclk = params_rate(params) * 512;
92 sspa_mclk = params_rate(params) * 64;
95 do_div(sspa_div, sspa_mclk);
97 snd_soc_dai_set_sysclk(cpu_dai, MMP_SSPA_CLK_AUDIO, freq_out, 0);
98 snd_soc_dai_set_pll(cpu_dai, MMP_SYSCLK, 0, freq_out, sysclk);
99 snd_soc_dai_set_pll(cpu_dai, MMP_SSPA_CLK, 0, freq_out, sspa_mclk);
101 /* set wm8994 sysclk */
102 snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1, sysclk, 0);
107 /* machine stream operations */
108 static struct snd_soc_ops brownstone_ops = {
109 .hw_params = brownstone_wm8994_hw_params,
112 static struct snd_soc_dai_link brownstone_wm8994_dai[] = {
115 .stream_name = "WM8994 HiFi",
116 .cpu_dai_name = "mmp-sspa-dai.0",
117 .codec_dai_name = "wm8994-aif1",
118 .platform_name = "mmp-pcm-audio",
119 .codec_name = "wm8994-codec",
120 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
121 SND_SOC_DAIFMT_CBS_CFS,
122 .ops = &brownstone_ops,
123 .init = brownstone_wm8994_init,
127 /* audio machine driver */
128 static struct snd_soc_card brownstone = {
129 .name = "brownstone",
130 .owner = THIS_MODULE,
131 .dai_link = brownstone_wm8994_dai,
132 .num_links = ARRAY_SIZE(brownstone_wm8994_dai),
134 .controls = brownstone_dapm_control,
135 .num_controls = ARRAY_SIZE(brownstone_dapm_control),
136 .dapm_widgets = brownstone_dapm_widgets,
137 .num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets),
138 .dapm_routes = brownstone_audio_map,
139 .num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
142 static int brownstone_probe(struct platform_device *pdev)
146 brownstone.dev = &pdev->dev;
147 ret = snd_soc_register_card(&brownstone);
149 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
154 static int brownstone_remove(struct platform_device *pdev)
156 snd_soc_unregister_card(&brownstone);
160 static struct platform_driver mmp_driver = {
162 .name = "brownstone-audio",
163 .owner = THIS_MODULE,
164 .pm = &snd_soc_pm_ops,
166 .probe = brownstone_probe,
167 .remove = brownstone_remove,
170 module_platform_driver(mmp_driver);
172 MODULE_AUTHOR("Leo Yan <leoy@marvell.com>");
173 MODULE_DESCRIPTION("ALSA SoC Brownstone");
174 MODULE_LICENSE("GPL");