169 lines
3.8 KiB
C
169 lines
3.8 KiB
C
/*
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* sound\soc\sunxi\snd_sunxi_spdif.c
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* (C) Copyright 2021-2025
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* AllWinner Technology Co., Ltd. <www.allwinnertech.com>
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* Dby <dby@allwinnertech.com>
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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 as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#include <linux/module.h>
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#include <sound/soc.h>
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#include "snd_sunxi_log.h"
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#include "snd_sunxi_pcm.h"
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#include "snd_sunxi_spdif.h"
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#define HLOG "SPDIF"
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#define DRV_NAME "sunxi-snd-plat-spdif"
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static int sunxi_spdif_dai_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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return 0;
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}
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static int sunxi_spdif_dai_set_sysclk(struct snd_soc_dai *dai,
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int clk_id,
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unsigned int freq,
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int dir)
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{
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return 0;
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}
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static int sunxi_spdif_dai_trigger(struct snd_pcm_substream *substream,
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int cmd,
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struct snd_soc_dai *dai)
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{
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return 0;
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}
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static int sunxi_spdif_dai_prepare(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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return 0;
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}
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static const struct snd_soc_dai_ops sunxi_spdif_dai_ops = {
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.hw_params = sunxi_spdif_dai_hw_params,
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.set_sysclk = sunxi_spdif_dai_set_sysclk,
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.trigger = sunxi_spdif_dai_trigger,
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.prepare = sunxi_spdif_dai_prepare,
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};
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static int sunxi_spdif_probe(struct snd_soc_dai *dai)
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{
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SND_LOG_DEBUG(HLOG, "\n");
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return 0;
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}
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static int sunxi_spdif_suspend(struct snd_soc_dai *dai)
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{
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SND_LOG_DEBUG(HLOG, "\n");
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return 0;
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}
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static int sunxi_spdif_resume(struct snd_soc_dai *dai)
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{
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SND_LOG_DEBUG(HLOG, "\n");
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return 0;
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}
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static struct snd_soc_dai_driver sunxi_spdif_dai = {
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.probe = sunxi_spdif_probe,
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.suspend = sunxi_spdif_suspend,
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.resume = sunxi_spdif_resume,
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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 = 2,
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.rates = SNDRV_PCM_RATE_8000_192000
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| SNDRV_PCM_RATE_KNOT,
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.formats = SNDRV_PCM_FMTBIT_S16_LE
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| SNDRV_PCM_FMTBIT_S24_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 = 2,
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.rates = SNDRV_PCM_RATE_8000_192000
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| SNDRV_PCM_RATE_KNOT,
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.formats = SNDRV_PCM_FMTBIT_S16_LE
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| SNDRV_PCM_FMTBIT_S24_LE,
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},
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.ops = &sunxi_spdif_dai_ops,
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};
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static struct snd_soc_component_driver sunxi_spdif_dev = {
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.name = DRV_NAME,
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};
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static int sunxi_spdif_dev_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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&sunxi_spdif_dev,
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&sunxi_spdif_dai, 1);
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if (ret) {
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SND_LOG_ERR(HLOG, "component register failed\n");
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ret = -ENOMEM;
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goto err_snd_soc_register_component;
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}
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ret = snd_sunxi_dma_platform_register(&pdev->dev);
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if (ret) {
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SND_LOG_ERR(HLOG, "register ASoC platform failed\n");
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ret = -ENOMEM;
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goto err_snd_soc_sunxi_dma_platform_register;
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}
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SND_LOG_DEBUG(HLOG, "register spdif platform success\n");
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return 0;
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err_snd_soc_sunxi_dma_platform_register:
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snd_soc_unregister_component(&pdev->dev);
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err_snd_soc_register_component:
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return ret;
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}
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static int sunxi_spdif_dev_remove(struct platform_device *pdev)
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{
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snd_sunxi_dma_platform_unregister(&pdev->dev);
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snd_soc_unregister_component(&pdev->dev);
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SND_LOG_DEBUG(HLOG, "unregister spdif platform success\n");
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return 0;
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}
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static const struct of_device_id sunxi_spdif_of_match[] = {
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{ .compatible = "allwinner," DRV_NAME, },
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{},
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};
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MODULE_DEVICE_TABLE(of, sunxi_spdif_of_match);
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static struct platform_driver sunxi_spdif_driver = {
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.driver = {
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.name = DRV_NAME,
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.owner = THIS_MODULE,
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.of_match_table = sunxi_spdif_of_match,
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},
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.probe = sunxi_spdif_dev_probe,
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.remove = sunxi_spdif_dev_remove,
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};
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module_platform_driver(sunxi_spdif_driver);
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MODULE_AUTHOR("Dby@allwinnertech.com");
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("sunxi soundcard platform of spdif");
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