96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/*
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* This is a simple driver for the GTM601 Voice PCM interface
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*
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* Copyright (C) 2015 Goldelico GmbH
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*
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* Author: Marek Belisko <marek@goldelico.com>
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*
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* Based on wm8727.c driver
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/ac97_codec.h>
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#include <sound/initval.h>
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#include <sound/soc.h>
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static const struct snd_soc_dapm_widget gtm601_dapm_widgets[] = {
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SND_SOC_DAPM_OUTPUT("AOUT"),
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SND_SOC_DAPM_INPUT("AIN"),
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};
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static const struct snd_soc_dapm_route gtm601_dapm_routes[] = {
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{ "AOUT", NULL, "Playback" },
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{ "Capture", NULL, "AIN" },
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};
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static struct snd_soc_dai_driver gtm601_dai = {
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.name = "gtm601",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = 1,
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.rates = SNDRV_PCM_RATE_8000,
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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},
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.capture = {
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.stream_name = "Capture",
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.channels_min = 1,
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.channels_max = 1,
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.rates = SNDRV_PCM_RATE_8000,
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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},
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};
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static const struct snd_soc_codec_driver soc_codec_dev_gtm601 = {
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.dapm_widgets = gtm601_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(gtm601_dapm_widgets),
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.dapm_routes = gtm601_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(gtm601_dapm_routes),
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};
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static int gtm601_platform_probe(struct platform_device *pdev)
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{
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return snd_soc_register_codec(&pdev->dev,
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&soc_codec_dev_gtm601, >m601_dai, 1);
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}
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static int gtm601_platform_remove(struct platform_device *pdev)
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{
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snd_soc_unregister_codec(&pdev->dev);
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return 0;
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}
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#if defined(CONFIG_OF)
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static const struct of_device_id gtm601_codec_of_match[] = {
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{ .compatible = "option,gtm601", },
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{},
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};
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MODULE_DEVICE_TABLE(of, gtm601_codec_of_match);
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#endif
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static struct platform_driver gtm601_codec_driver = {
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.driver = {
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.name = "gtm601",
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.of_match_table = of_match_ptr(gtm601_codec_of_match),
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},
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.probe = gtm601_platform_probe,
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.remove = gtm601_platform_remove,
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};
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module_platform_driver(gtm601_codec_driver);
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MODULE_DESCRIPTION("ASoC gtm601 driver");
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MODULE_AUTHOR("Marek Belisko <marek@goldelico.com>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:gtm601");
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