mirror of https://gitee.com/openkylin/linux.git
131 lines
3.4 KiB
C
131 lines
3.4 KiB
C
/*
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* Machine driver for EVAL-ADAU1701MINIZ on Analog Devices bfin
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* evaluation boards.
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*
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* Copyright 2011 Analog Devices Inc.
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* Author: Lars-Peter Clausen <lars@metafoo.de>
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*
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* Licensed under the GPL-2 or later.
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*/
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#include <linux/module.h>
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#include <linux/device.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/pcm_params.h>
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#include "../codecs/adau1701.h"
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static const struct snd_soc_dapm_widget bfin_eval_adau1701_dapm_widgets[] = {
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SND_SOC_DAPM_SPK("Speaker", NULL),
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SND_SOC_DAPM_LINE("Line Out", NULL),
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SND_SOC_DAPM_LINE("Line In", NULL),
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};
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static const struct snd_soc_dapm_route bfin_eval_adau1701_dapm_routes[] = {
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{ "Speaker", NULL, "OUT0" },
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{ "Speaker", NULL, "OUT1" },
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{ "Line Out", NULL, "OUT2" },
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{ "Line Out", NULL, "OUT3" },
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{ "IN0", NULL, "Line In" },
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{ "IN1", NULL, "Line In" },
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};
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static int bfin_eval_adau1701_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(cpu_dai, SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
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if (ret)
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return 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 | SND_SOC_DAIFMT_CBM_CFM);
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if (ret)
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return ret;
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ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1701_CLK_SRC_OSC, 12288000,
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SND_SOC_CLOCK_IN);
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return ret;
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}
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static struct snd_soc_ops bfin_eval_adau1701_ops = {
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.hw_params = bfin_eval_adau1701_hw_params,
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};
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static struct snd_soc_dai_link bfin_eval_adau1701_dai[] = {
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{
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.name = "adau1701",
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.stream_name = "adau1701",
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.cpu_dai_name = "bfin-i2s.0",
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.codec_dai_name = "adau1701",
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.platform_name = "bfin-i2s-pcm-audio",
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.codec_name = "adau1701.0-0034",
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.ops = &bfin_eval_adau1701_ops,
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},
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{
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.name = "adau1701",
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.stream_name = "adau1701",
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.cpu_dai_name = "bfin-i2s.1",
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.codec_dai_name = "adau1701",
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.platform_name = "bfin-i2s-pcm-audio",
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.codec_name = "adau1701.0-0034",
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.ops = &bfin_eval_adau1701_ops,
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},
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};
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static struct snd_soc_card bfin_eval_adau1701 = {
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.name = "bfin-eval-adau1701",
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.owner = THIS_MODULE,
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.dai_link = &bfin_eval_adau1701_dai[CONFIG_SND_BF5XX_SPORT_NUM],
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.num_links = 1,
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.dapm_widgets = bfin_eval_adau1701_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1701_dapm_widgets),
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.dapm_routes = bfin_eval_adau1701_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1701_dapm_routes),
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};
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static int bfin_eval_adau1701_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &bfin_eval_adau1701;
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card->dev = &pdev->dev;
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return snd_soc_register_card(&bfin_eval_adau1701);
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}
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static int __devexit bfin_eval_adau1701_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 bfin_eval_adau1701_driver = {
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.driver = {
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.name = "bfin-eval-adau1701",
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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 = bfin_eval_adau1701_probe,
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.remove = __devexit_p(bfin_eval_adau1701_remove),
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};
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module_platform_driver(bfin_eval_adau1701_driver);
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MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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MODULE_DESCRIPTION("ALSA SoC bfin ADAU1701 driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:bfin-eval-adau1701");
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