bfin-eval-adau1701.c
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/*
* Machine driver for EVAL-ADAU1701MINIZ on Analog Devices bfin
* evaluation boards.
*
* Copyright 2011 Analog Devices Inc.
* Author: Lars-Peter Clausen <lars@metafoo.de>
*
* Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
#include "../codecs/adau1701.h"
static const struct snd_soc_dapm_widget bfin_eval_adau1701_dapm_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_LINE("Line Out", NULL),
SND_SOC_DAPM_LINE("Line In", NULL),
};
static const struct snd_soc_dapm_route bfin_eval_adau1701_dapm_routes[] = {
{ "Speaker", NULL, "OUT0" },
{ "Speaker", NULL, "OUT1" },
{ "Line Out", NULL, "OUT2" },
{ "Line Out", NULL, "OUT3" },
{ "IN0", NULL, "Line In" },
{ "IN1", NULL, "Line In" },
};
static int bfin_eval_adau1701_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret;
ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1701_CLK_SRC_OSC, 12288000,
SND_SOC_CLOCK_IN);
return ret;
}
static struct snd_soc_ops bfin_eval_adau1701_ops = {
.hw_params = bfin_eval_adau1701_hw_params,
};
#define BFIN_EVAL_ADAU1701_DAI_FMT (SND_SOC_DAIFMT_I2S | \
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM)
static struct snd_soc_dai_link bfin_eval_adau1701_dai[] = {
{
.name = "adau1701",
.stream_name = "adau1701",
.cpu_dai_name = "bfin-i2s.0",
.codec_dai_name = "adau1701",
.platform_name = "bfin-i2s-pcm-audio",
.codec_name = "adau1701.0-0034",
.ops = &bfin_eval_adau1701_ops,
.dai_fmt = BFIN_EVAL_ADAU1701_DAI_FMT,
},
{
.name = "adau1701",
.stream_name = "adau1701",
.cpu_dai_name = "bfin-i2s.1",
.codec_dai_name = "adau1701",
.platform_name = "bfin-i2s-pcm-audio",
.codec_name = "adau1701.0-0034",
.ops = &bfin_eval_adau1701_ops,
.dai_fmt = BFIN_EVAL_ADAU1701_DAI_FMT,
},
};
static struct snd_soc_card bfin_eval_adau1701 = {
.name = "bfin-eval-adau1701",
.owner = THIS_MODULE,
.dai_link = &bfin_eval_adau1701_dai[CONFIG_SND_BF5XX_SPORT_NUM],
.num_links = 1,
.dapm_widgets = bfin_eval_adau1701_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1701_dapm_widgets),
.dapm_routes = bfin_eval_adau1701_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1701_dapm_routes),
};
static int bfin_eval_adau1701_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &bfin_eval_adau1701;
card->dev = &pdev->dev;
return snd_soc_register_card(&bfin_eval_adau1701);
}
static int bfin_eval_adau1701_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static struct platform_driver bfin_eval_adau1701_driver = {
.driver = {
.name = "bfin-eval-adau1701",
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
},
.probe = bfin_eval_adau1701_probe,
.remove = bfin_eval_adau1701_remove,
};
module_platform_driver(bfin_eval_adau1701_driver);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("ALSA SoC bfin ADAU1701 driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:bfin-eval-adau1701");