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ASoC: spdif_receiver: Add support for spdif in Audio Codec

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This patch adds the support for spdif in audio codec.

Signed-off-by: vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Vipin Kumar 2012-06-28 12:31:37 +05:30 committed by Mark Brown
parent 6b4a21b64c
commit cdf605255c
2 changed files with 68 additions and 1 deletions
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2
sound/soc/codecs/Makefile
View File

@ -45,7 +45,7 @@ snd-soc-alc5623-objs := alc5623.o
snd-soc-alc5632-objs := alc5632.o
snd-soc-sigmadsp-objs := sigmadsp.o
snd-soc-sn95031-objs := sn95031.o
snd-soc-spdif-objs := spdif_transciever.o
snd-soc-spdif-objs := spdif_transciever.o spdif_receiver.o
snd-soc-ssm2602-objs := ssm2602.o
snd-soc-sta32x-objs := sta32x.o
snd-soc-stac9766-objs := stac9766.o

67
sound/soc/codecs/spdif_receiver.c Normal file
View File

@ -0,0 +1,67 @@
/*
* ALSA SoC SPDIF DIR (Digital Interface Reciever) driver
*
* Based on ALSA SoC SPDIF DIT driver
*
* This driver is used by controllers which can operate in DIR (SPDI/F) where
* no codec is needed. This file provides stub codec that can be used
* in these configurations. SPEAr SPDIF IN Audio controller uses this driver.
*
* Author: Vipin Kumar, <vipin.kumar@st.com>
* Copyright: (C) 2012 ST Microelectronics
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <sound/soc.h>
#include <sound/pcm.h>
#include <sound/initval.h>
#define STUB_RATES SNDRV_PCM_RATE_8000_192000
#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
static struct snd_soc_codec_driver soc_codec_spdif_dir;
static struct snd_soc_dai_driver dir_stub_dai = {
.name = "dir-hifi",
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 384,
.rates = STUB_RATES,
.formats = STUB_FORMATS,
},
};
static int spdif_dir_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev, &soc_codec_spdif_dir,
&dir_stub_dai, 1);
}
static int spdif_dir_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
static struct platform_driver spdif_dir_driver = {
.probe = spdif_dir_probe,
.remove = spdif_dir_remove,
.driver = {
.name = "spdif-dir",
.owner = THIS_MODULE,
},
};
module_platform_driver(spdif_dir_driver);
MODULE_DESCRIPTION("ASoC SPDIF DIR driver");
MODULE_AUTHOR("Vipin Kumar <vipin.kumar@st.com>");
MODULE_LICENSE("GPL");