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/*
* Tis is a driver for the W2CBW003 Bluetooth PCM interface
*
* w2cbw003.c
*
* Created on: 15-Oct-2009
* Author: neil.jones@imgtec.com
*
* Copyright (C) 2009 Imagination Technologies Ltd.
*
* 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/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include "w2cbw003-bt.h"
/*
* Note this is a simple chip with no configuration interface, sample rate is
* determined automatically by examining the Master clock and Bit clock ratios
*/
// FIXME: adjust what the W2CBW003 PCM I/F supports...
#define W2CBW003_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\
SNDRV_PCM_RATE_192000)
struct snd_soc_dai_driver w2cbw003_dai = {
.name = "W2CBW003",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 2,
.rates = W2CBW003_RATES,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
},
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.rates = W2CBW003_RATES,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
},
};
struct snd_soc_codec_driver soc_codec_dev_w2cbw003;
static int w2cbw003_platform_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev,
&soc_codec_dev_w2cbw003, &w2cbw003_dai, 1);
}
static int w2cbw003_platform_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
MODULE_ALIAS("platform:w2cbw003_codec_audio");
static struct platform_driver w2cbw003_codec_driver = {
.driver = {
.name = "w2cbw003_codec_audio",
.owner = THIS_MODULE,
},
.probe = w2cbw003_platform_probe,
.remove = w2cbw003_platform_remove,
};
static int __init w2cbw003_init(void)
{
return platform_driver_register(&w2cbw003_codec_driver);
}
module_init(w2cbw003_init);
static void __exit w2cbw003_exit(void)
{
platform_driver_unregister(&w2cbw003_codec_driver);
}
module_exit(w2cbw003_exit);
MODULE_DESCRIPTION("ASoC W2CBW003 driver");
MODULE_AUTHOR("Neil Jones");
MODULE_LICENSE("GPL");
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