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// SPDX-License-Identifier: GPL-2.0
/*
* ASoC Driver for HiFiBerry DAC + DSP
*
* Author: Joerg Schambacher <joscha@schambacher.com>
* Copyright 2018
*
* 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.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <sound/soc.h>
static struct snd_soc_component_driver dacplusdsp_component_driver;
static struct snd_soc_dai_driver dacplusdsp_dai = {
.name = "dacplusdsp-hifi",
.capture = {
.stream_name = "DAC+DSP Capture",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
.playback = {
.stream_name = "DACP+DSP Playback",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
.symmetric_rates = 1};
#ifdef CONFIG_OF
static const struct of_device_id dacplusdsp_ids[] = {
{
.compatible = "hifiberry,dacplusdsp",
},
{} };
MODULE_DEVICE_TABLE(of, dacplusdsp_ids);
#endif
static int dacplusdsp_platform_probe(struct platform_device *pdev)
{
int ret;
ret = snd_soc_register_component(&pdev->dev,
&dacplusdsp_component_driver, &dacplusdsp_dai, 1);
if (ret) {
pr_alert("snd_soc_register_component failed\n");
return ret;
}
return 0;
}
static int dacplusdsp_platform_remove(struct platform_device *pdev)
{
snd_soc_unregister_component(&pdev->dev);
return 0;
}
static struct platform_driver dacplusdsp_driver = {
.driver = {
.name = "hifiberry-dacplusdsp-codec",
.of_match_table = of_match_ptr(dacplusdsp_ids),
},
.probe = dacplusdsp_platform_probe,
.remove = dacplusdsp_platform_remove,
};
module_platform_driver(dacplusdsp_driver);
MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>");
MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+DSP");
MODULE_LICENSE("GPL v2");
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