85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* ALSA SoC Audio Layer - Rockchip Dummy Controller driver
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*
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* Copyright (c) 2024 Rockchip Electronics Co., Ltd.
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*/
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#include <linux/module.h>
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#include <sound/pcm_params.h>
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#include <sound/dmaengine_pcm.h>
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#define DRV_NAME "rockchip-dummy-dai"
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struct rk_dummy_dai_dev {
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struct device *dev;
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};
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static struct snd_soc_dai_driver rockchip_dummy_dai_dai = {
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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 = 512,
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.rates = SNDRV_PCM_RATE_8000_384000,
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.formats = SNDRV_PCM_FMTBIT_S8 |
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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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SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_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 = 512,
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.rates = SNDRV_PCM_RATE_8000_384000,
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.formats = SNDRV_PCM_FMTBIT_S8 |
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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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SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE,
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},
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};
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static const struct of_device_id rockchip_dummy_dai_match[] __maybe_unused = {
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{ .compatible = "rockchip,dummy-dai", },
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{},
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};
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static const struct snd_soc_component_driver rockchip_dummy_dai_component = {
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.name = DRV_NAME,
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.legacy_dai_naming = 1,
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};
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static int rockchip_dummy_dai_probe(struct platform_device *pdev)
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{
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struct rk_dummy_dai_dev *dummy_dai;
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int ret;
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dummy_dai = devm_kzalloc(&pdev->dev, sizeof(*dummy_dai), GFP_KERNEL);
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if (!dummy_dai)
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return -ENOMEM;
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dummy_dai->dev = &pdev->dev;
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dev_set_drvdata(&pdev->dev, dummy_dai);
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ret = devm_snd_soc_register_component(&pdev->dev,
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&rockchip_dummy_dai_component,
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&rockchip_dummy_dai_dai, 1);
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return ret;
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}
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static struct platform_driver rockchip_dummy_dai_driver = {
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.probe = rockchip_dummy_dai_probe,
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.driver = {
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.name = DRV_NAME,
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.of_match_table = of_match_ptr(rockchip_dummy_dai_match),
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},
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};
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module_platform_driver(rockchip_dummy_dai_driver);
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MODULE_DESCRIPTION("Rockchip Dummy DAI ASoC Interface");
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MODULE_AUTHOR("Sugar Zhang <sugar.zhang@rock-chips.com>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:" DRV_NAME);
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MODULE_DEVICE_TABLE(of, rockchip_dummy_dai_match);
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