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Provide widgets for the basic widgets connected directly to the WM8915 on Speyside - the headphones, speaker, digital and analogue microphones. For the outputs this is just documentation, for the inputs this ensures that the relevant microphone biases are enabled when they are in use. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com>
152 lines
3.4 KiB
C
152 lines
3.4 KiB
C
/*
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* Speyside audio support
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*
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* Copyright 2011 Wolfson Microelectronics
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include "../codecs/wm8915.h"
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static int speyside_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 *cpu_dai = rtd->cpu_dai;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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int ret;
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ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
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| SND_SOC_DAIFMT_NB_NF
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| SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0)
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return ret;
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ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
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| SND_SOC_DAIFMT_NB_NF
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| SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0)
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return ret;
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ret = snd_soc_dai_set_pll(codec_dai, 0, WM8915_FLL_MCLK1,
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32768, 256 * 48000);
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if (ret < 0)
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return ret;
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ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_FLL,
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256 * 48000, SND_SOC_CLOCK_IN);
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if (ret < 0)
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return ret;
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return 0;
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}
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static struct snd_soc_ops speyside_ops = {
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.hw_params = speyside_hw_params,
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};
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static struct snd_soc_dai_link speyside_dai[] = {
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{
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.name = "CPU",
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.stream_name = "CPU",
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.cpu_dai_name = "samsung-i2s.0",
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.codec_dai_name = "wm8915-aif1",
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.platform_name = "samsung-audio",
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.codec_name = "wm8915.1-001a",
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.ops = &speyside_ops,
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},
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};
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static struct snd_soc_dapm_widget widgets[] = {
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SND_SOC_DAPM_HP("Headphone", NULL),
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SND_SOC_DAPM_SPK("Main Speaker", NULL),
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SND_SOC_DAPM_MIC("Main AMIC", NULL),
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SND_SOC_DAPM_MIC("Main DMIC", NULL),
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};
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static struct snd_soc_dapm_route audio_paths[] = {
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{ "IN1LP", NULL, "MICB2" },
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{ "MICB2", NULL, "Main AMIC" },
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{ "DMIC1DAT", NULL, "MICB1" },
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{ "DMIC2DAT", NULL, "MICB1" },
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{ "MICB1", NULL, "Main DMIC" },
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{ "Headphone", NULL, "HPOUT1L" },
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{ "Headphone", NULL, "HPOUT1R" },
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{ "Main Speaker", NULL, "SPKDAT" },
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};
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static struct snd_soc_card speyside = {
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.name = "Speyside",
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.dai_link = speyside_dai,
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.num_links = ARRAY_SIZE(speyside_dai),
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.dapm_widgets = widgets,
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.num_dapm_widgets = ARRAY_SIZE(widgets),
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.dapm_routes = audio_paths,
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.num_dapm_routes = ARRAY_SIZE(audio_paths),
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};
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static __devinit int speyside_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &speyside;
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int ret;
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card->dev = &pdev->dev;
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ret = snd_soc_register_card(card);
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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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return 0;
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}
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static int __devexit speyside_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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snd_soc_unregister_card(card);
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return 0;
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}
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static struct platform_driver speyside_driver = {
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.driver = {
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.name = "speyside",
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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},
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.probe = speyside_probe,
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.remove = __devexit_p(speyside_remove),
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};
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static int __init speyside_audio_init(void)
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{
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return platform_driver_register(&speyside_driver);
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}
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module_init(speyside_audio_init);
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static void __exit speyside_audio_exit(void)
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{
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platform_driver_unregister(&speyside_driver);
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}
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module_exit(speyside_audio_exit);
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MODULE_DESCRIPTION("Speyside audio support");
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MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:speyside");
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