ASoC: spdif_receiver: Add support for spdif in Audio Codec

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

/*

 * 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");