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/*
* This is a simple driver for the GTM601 Voice PCM interface
*
* Copyright (C) 2015 Goldelico GmbH
*
* Author: Marek Belisko <marek@goldelico.com>
*
* Based on wm8727.c driver
*
* 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/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>
static const struct snd_soc_dapm_widget gtm601_dapm_widgets[] = {
SND_SOC_DAPM_OUTPUT("AOUT"),
SND_SOC_DAPM_INPUT("AIN"),
};
static const struct snd_soc_dapm_route gtm601_dapm_routes[] = {
{ "AOUT", NULL, "Playback" },
{ "Capture", NULL, "AIN" },
};
struct snd_soc_dai_driver gtm601_dai = {
.name = "gtm601",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 1,
.rates = SNDRV_PCM_RATE_8000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 1,
.rates = SNDRV_PCM_RATE_8000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
};
static struct snd_soc_codec_driver soc_codec_dev_gtm601 = {
.dapm_widgets = gtm601_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(gtm601_dapm_widgets),
.dapm_routes = gtm601_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(gtm601_dapm_routes),
};
static int gtm601_platform_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev,
&soc_codec_dev_gtm601, >m601_dai, 1);
}
static int gtm601_platform_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
MODULE_ALIAS("platform:gtm601_codec_audio");
#if defined(CONFIG_OF)
static const struct of_device_id gtm601_codec_of_match[] = {
{ .compatible = "option,gtm601", },
{},
};
MODULE_DEVICE_TABLE(of, gtm601_codec_of_match);
#endif
static struct platform_driver gtm601_codec_driver = {
.driver = {
.name = "gtm601",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(gtm601_codec_of_match),
},
.probe = gtm601_platform_probe,
.remove = gtm601_platform_remove,
};
module_platform_driver(gtm601_codec_driver);
MODULE_DESCRIPTION("ASoC gtm601 driver");
MODULE_AUTHOR("Marek Belisko <marek@goldelico.com>");
MODULE_LICENSE("GPL");
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