137 lines
3.7 KiB
C
137 lines
3.7 KiB
C
/*
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* linux/sound/soc/pxa/brownstone.c
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*
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* Copyright (C) 2011 Marvell International Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#include <linux/module.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include "../codecs/wm8994.h"
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#include "mmp-sspa.h"
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static const struct snd_kcontrol_new brownstone_dapm_control[] = {
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SOC_DAPM_PIN_SWITCH("Ext Spk"),
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};
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static const struct snd_soc_dapm_widget brownstone_dapm_widgets[] = {
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_MIC("Main Mic", NULL),
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};
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static const struct snd_soc_dapm_route brownstone_audio_map[] = {
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{"Ext Spk", NULL, "SPKOUTLP"},
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{"Ext Spk", NULL, "SPKOUTLN"},
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{"Ext Spk", NULL, "SPKOUTRP"},
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{"Ext Spk", NULL, "SPKOUTRN"},
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{"Headset Stereophone", NULL, "HPOUT1L"},
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{"Headset Stereophone", NULL, "HPOUT1R"},
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{"IN1RN", NULL, "Headset Mic"},
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{"DMIC1DAT", NULL, "MICBIAS1"},
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{"MICBIAS1", NULL, "Main Mic"},
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};
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static int brownstone_wm8994_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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int freq_out, sspa_mclk, sysclk;
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if (params_rate(params) > 11025) {
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freq_out = params_rate(params) * 512;
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sysclk = params_rate(params) * 256;
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sspa_mclk = params_rate(params) * 64;
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} else {
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freq_out = params_rate(params) * 1024;
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sysclk = params_rate(params) * 512;
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sspa_mclk = params_rate(params) * 64;
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}
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snd_soc_dai_set_sysclk(cpu_dai, MMP_SSPA_CLK_AUDIO, freq_out, 0);
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snd_soc_dai_set_pll(cpu_dai, MMP_SYSCLK, 0, freq_out, sysclk);
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snd_soc_dai_set_pll(cpu_dai, MMP_SSPA_CLK, 0, freq_out, sspa_mclk);
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/* set wm8994 sysclk */
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snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1, sysclk, 0);
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return 0;
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}
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/* machine stream operations */
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static const struct snd_soc_ops brownstone_ops = {
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.hw_params = brownstone_wm8994_hw_params,
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};
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static struct snd_soc_dai_link brownstone_wm8994_dai[] = {
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{
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.name = "WM8994",
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.stream_name = "WM8994 HiFi",
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.cpu_dai_name = "mmp-sspa-dai.0",
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.codec_dai_name = "wm8994-aif1",
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.platform_name = "mmp-pcm-audio",
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.codec_name = "wm8994-codec",
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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.ops = &brownstone_ops,
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},
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};
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/* audio machine driver */
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static struct snd_soc_card brownstone = {
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.name = "brownstone",
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.owner = THIS_MODULE,
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.dai_link = brownstone_wm8994_dai,
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.num_links = ARRAY_SIZE(brownstone_wm8994_dai),
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.controls = brownstone_dapm_control,
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.num_controls = ARRAY_SIZE(brownstone_dapm_control),
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.dapm_widgets = brownstone_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets),
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.dapm_routes = brownstone_audio_map,
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.num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
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.fully_routed = true,
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};
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static int brownstone_probe(struct platform_device *pdev)
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{
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int ret;
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brownstone.dev = &pdev->dev;
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ret = devm_snd_soc_register_card(&pdev->dev, &brownstone);
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if (ret)
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dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
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ret);
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return ret;
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}
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static struct platform_driver mmp_driver = {
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.driver = {
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.name = "brownstone-audio",
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.pm = &snd_soc_pm_ops,
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},
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.probe = brownstone_probe,
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};
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module_platform_driver(mmp_driver);
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MODULE_AUTHOR("Leo Yan <leoy@marvell.com>");
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MODULE_DESCRIPTION("ALSA SoC Brownstone");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:brownstone-audio");
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