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