124 lines
2.8 KiB
C
124 lines
2.8 KiB
C
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/*
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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_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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};
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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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