75b9b65ee5
This patch adds S/PDIF input/output for mvebu DT boards. Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mark Brown <broonie@linaro.org>
109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/*
|
|
* kirkwood-openrd.c
|
|
*
|
|
* (c) 2010 Arnaud Patard <apatard@mandriva.com>
|
|
* (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/slab.h>
|
|
#include <sound/soc.h>
|
|
#include <linux/platform_data/asoc-kirkwood.h>
|
|
#include "../codecs/cs42l51.h"
|
|
|
|
static int openrd_client_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;
|
|
unsigned int freq;
|
|
|
|
switch (params_rate(params)) {
|
|
default:
|
|
case 44100:
|
|
freq = 11289600;
|
|
break;
|
|
case 48000:
|
|
freq = 12288000;
|
|
break;
|
|
case 96000:
|
|
freq = 24576000;
|
|
break;
|
|
}
|
|
|
|
return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
|
|
|
|
}
|
|
|
|
static struct snd_soc_ops openrd_client_ops = {
|
|
.hw_params = openrd_client_hw_params,
|
|
};
|
|
|
|
|
|
static struct snd_soc_dai_link openrd_client_dai[] = {
|
|
{
|
|
.name = "CS42L51",
|
|
.stream_name = "CS42L51 HiFi",
|
|
.cpu_dai_name = "i2s",
|
|
.platform_name = "mvebu-audio",
|
|
.codec_dai_name = "cs42l51-hifi",
|
|
.codec_name = "cs42l51-codec.0-004a",
|
|
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
|
|
.ops = &openrd_client_ops,
|
|
},
|
|
};
|
|
|
|
|
|
static struct snd_soc_card openrd_client = {
|
|
.name = "OpenRD Client",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = openrd_client_dai,
|
|
.num_links = ARRAY_SIZE(openrd_client_dai),
|
|
};
|
|
|
|
static int openrd_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = &openrd_client;
|
|
int ret;
|
|
|
|
card->dev = &pdev->dev;
|
|
|
|
ret = snd_soc_register_card(card);
|
|
if (ret)
|
|
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
static int openrd_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 openrd_driver = {
|
|
.driver = {
|
|
.name = "openrd-client-audio",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = openrd_probe,
|
|
.remove = openrd_remove,
|
|
};
|
|
|
|
module_platform_driver(openrd_driver);
|
|
|
|
/* Module information */
|
|
MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
|
|
MODULE_DESCRIPTION("ALSA SoC OpenRD Client");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:openrd-client-audio");
|