diff -drupN a/sound/soc/sunxi/sun8iw19-sndcodec.c b/sound/soc/sunxi/sun8iw19-sndcodec.c --- a/sound/soc/sunxi/sun8iw19-sndcodec.c 1970-01-01 03:00:00.000000000 +0300 +++ b/sound/soc/sunxi/sun8iw19-sndcodec.c 2022-06-12 05:28:14.000000000 +0300 @@ -0,0 +1,204 @@ +/* + * sound\soc\sunxi\sunx8iw19-sndcodec.c + * (C) Copyright 2014-2019 + * allwinner Technology Co., Ltd. + * yumingfeng + * + * some simple description for this code + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct sunxi_card_priv { + struct snd_soc_card *card; +}; + +static const struct snd_kcontrol_new sunxi_card_controls[] = { + SOC_DAPM_PIN_SWITCH("External Speaker"), +}; + +static const struct snd_soc_dapm_widget sunxi_card_dapm_widgets[] = { + SND_SOC_DAPM_MIC("Main Mic", NULL), + SND_SOC_DAPM_LINE("LINEIN", NULL), +}; + +static const struct snd_soc_dapm_route sunxi_card_routes[] = { + {"MainMic Bias", NULL, "Main Mic"}, + + {"External Speaker", NULL, "LINEOUT"}, + + {"LINEINL", NULL, "LINEIN"}, +}; + +/* + * Card initialization + */ +static int sunxi_card_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + + snd_soc_dapm_disable_pin(&codec->component.dapm, "External Speaker"); + snd_soc_dapm_enable_pin(&codec->component.dapm, "LINEIN"); + snd_soc_dapm_enable_pin(&codec->component.dapm, "LINEOUT"); + + snd_soc_dapm_sync(&codec->component.dapm); + + pr_warn("[%s] card init finished.\n", __func__); + return 0; +} + +static int sunxi_card_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_card *card = rtd->card; + unsigned int freq; + int ret; + + switch (params_rate(params)) { + case 8000: + case 12000: + case 16000: + case 24000: + case 32000: + case 48000: + case 96000: + case 192000: + freq = 24576000; + break; + case 11025: + case 22050: + case 44100: + freq = 22579200; + break; + default: + dev_err(card->dev, "invalid rate setting\n"); + return -EINVAL; + } + + ret = snd_soc_dai_set_sysclk(codec_dai, 0, freq, 0); + if (ret < 0) { + dev_err(card->dev, "set codec dai sysclk faided.\n"); + return ret; + } + + return 0; +} + +static struct snd_soc_ops sunxi_card_ops = { + .hw_params = sunxi_card_hw_params, +}; + +static struct snd_soc_dai_link sunxi_card_dai_link[] = { + { + .name = "sun8iw19-codec", + .stream_name = "SUNXI-CODEC", + .codec_name = "codec", + .codec_dai_name = "sun8iw19codec", + .cpu_dai_name = "codec", + .platform_name = "codec", + .init = sunxi_card_init, + .ops = &sunxi_card_ops, + }, +}; + +static struct snd_soc_card snd_soc_sunxi_card = { + .name = "sun8iw19-codec", + .owner = THIS_MODULE, + .dai_link = sunxi_card_dai_link, + .num_links = ARRAY_SIZE(sunxi_card_dai_link), + .controls = sunxi_card_controls, + .num_controls = ARRAY_SIZE(sunxi_card_controls), + .dapm_widgets = sunxi_card_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(sunxi_card_dapm_widgets), + .dapm_routes = sunxi_card_routes, + .num_dapm_routes = ARRAY_SIZE(sunxi_card_routes), +}; + +static int sunxi_card_dev_probe(struct platform_device *pdev) +{ + int ret = 0; + struct snd_soc_card *card = &snd_soc_sunxi_card; + struct sunxi_card_priv *priv; + + /* register the soc card */ + card->dev = &pdev->dev; + + priv = devm_kzalloc(&pdev->dev, + sizeof(struct sunxi_card_priv), GFP_KERNEL); + if (!priv) { + dev_err(&pdev->dev, "devm_kzalloc failed %d\n", ret); + return -ENOMEM; + } + priv->card = card; + + snd_soc_card_set_drvdata(card, priv); + ret = snd_soc_register_card(card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret); + goto err_devm_kfree; + } + + dev_warn(&pdev->dev, "[%s] register card finished.\n", __func__); + + return 0; + +err_devm_kfree: + devm_kfree(&pdev->dev, priv); + return ret; +} + +static int __exit sunxi_card_dev_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + struct sunxi_card_priv *priv = snd_soc_card_get_drvdata(card); + + snd_soc_unregister_card(card); + devm_kfree(&pdev->dev, priv); + + dev_warn(&pdev->dev, "[%s] unregister card finished.\n", __func__); + + return 0; +} + +static const struct of_device_id sunxi_card_of_match[] = { + { .compatible = "allwinner,sunxi-codec-machine", }, + {}, +}; + +static struct platform_driver sunxi_machine_driver = { + .driver = { + .name = "sunxi-codec-machine", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + .of_match_table = sunxi_card_of_match, + }, + .probe = sunxi_card_dev_probe, + .remove = __exit_p(sunxi_card_dev_remove), +}; +module_platform_driver(sunxi_machine_driver); + +MODULE_AUTHOR("yumingfeng "); +MODULE_DESCRIPTION("SUNXI Codec Machine ASoC driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:sunxi-codec-machine");