firmware/br-ext-chip-allwinner/board/v83x/kernel/patches/00000-sound_soc_sunxi_sunxi-cpudai.c.patch

diff -drupN a/sound/soc/sunxi/sunxi-cpudai.c b/sound/soc/sunxi/sunxi-cpudai.c
--- a/sound/soc/sunxi/sunxi-cpudai.c	1970-01-01 03:00:00.000000000 +0300
+++ b/sound/soc/sunxi/sunxi-cpudai.c	2022-06-12 05:28:14.000000000 +0300
@@ -0,0 +1,211 @@
+/*
+ * sound\soc\sunxi\sunxi-cpudai.c
+ * (C) Copyright 2014-2018
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ * wolfgang huang <huangjinhui@allwinnertech.com>
+ * yumingfeng <yumingfeng@allwinnertech.com>
+ *
+ * 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 <linux/module.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/dma/sunxi-dma.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include "sunxi-pcm.h"
+
+#if defined(CONFIG_ARCH_SUN8IW11)
+#include "sun8iw11-codec.h"
+#endif
+
+#if defined(CONFIG_ARCH_SUN8IW17)
+#include "sun8iw17-codec.h"
+#endif
+
+#if defined(CONFIG_ARCH_SUN50IW9)
+#include "sun50iw9-codec.h"
+#endif
+
+#define DRV_NAME "sunxi-internal-cpudai"
+
+struct sunxi_cpudai_info {
+	struct sunxi_dma_params playback_dma_param;
+	struct sunxi_dma_params capture_dma_param;
+};
+
+static int sunxi_cpudai_startup(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct sunxi_cpudai_info *sunxi_cpudai = snd_soc_dai_get_drvdata(dai);
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		snd_soc_dai_set_dma_data(dai, substream,
+					&sunxi_cpudai->playback_dma_param);
+	else {
+		snd_soc_dai_set_dma_data(dai, substream,
+				&sunxi_cpudai->capture_dma_param);
+	}
+
+	return 0;
+}
+
+static int sunxi_cpudai_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	return 0;
+}
+
+static int sunxi_cpudai_suspend(struct snd_soc_dai *dai)
+{
+	return 0;
+}
+
+static int sunxi_cpudai_resume(struct snd_soc_dai *dai)
+{
+	return 0;
+}
+
+static void sunxi_cpudai_shutdown(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+}
+
+static struct snd_soc_dai_ops sunxi_cpudai_dai_ops = {
+	.startup = sunxi_cpudai_startup,
+	.hw_params = sunxi_cpudai_hw_params,
+	.shutdown = sunxi_cpudai_shutdown,
+};
+
+static struct snd_soc_dai_driver sunxi_cpudai_dai = {
+	.suspend = sunxi_cpudai_suspend,
+	.resume = sunxi_cpudai_resume,
+	.playback = {
+		.channels_min = 1,
+		.channels_max = SUNXI_CODEC_CPUDAI_TX_CHANNELS_MAX,
+		.rates = SNDRV_PCM_RATE_8000_192000 |
+			SNDRV_PCM_RATE_KNOT,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE |
+			SNDRV_PCM_FMTBIT_S24_LE |
+			SNDRV_PCM_FMTBIT_S32_LE,
+	},
+	.capture = {
+		.channels_min = 1,
+		.channels_max = SUNXI_CODEC_CPUDAI_RX_CHANNELS_MAX,
+		.rates = SNDRV_PCM_RATE_8000_48000 |
+			SNDRV_PCM_RATE_KNOT,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE |
+			SNDRV_PCM_FMTBIT_S24_LE |
+			SNDRV_PCM_FMTBIT_S32_LE,
+	},
+	.ops		= &sunxi_cpudai_dai_ops,
+
+};
+
+static const struct snd_soc_component_driver sunxi_asoc_cpudai_component = {
+	.name = DRV_NAME,
+};
+static const struct of_device_id sunxi_asoc_cpudai_of_match[] = {
+	{ .compatible = "allwinner,sunxi-internal-cpudai", },
+	{},
+};
+
+static int  sunxi_asoc_cpudai_dev_probe(struct platform_device *pdev)
+{
+	struct resource res;
+	struct sunxi_cpudai_info *sunxi_cpudai;
+	struct device_node *np = pdev->dev.of_node;
+	int ret;
+
+	sunxi_cpudai = devm_kzalloc(&pdev->dev,
+			sizeof(struct sunxi_cpudai_info), GFP_KERNEL);
+	if (!sunxi_cpudai) {
+		ret = -ENOMEM;
+		goto err_node_put;
+	}
+	dev_set_drvdata(&pdev->dev, sunxi_cpudai);
+
+	ret = of_address_to_resource(np, 0, &res);
+	if (ret) {
+		dev_err(&pdev->dev, "Can't parse device node resource\n");
+		ret = -ENODEV;
+		goto err_devm_kfree;
+	}
+
+	sunxi_cpudai->playback_dma_param.dma_addr = res.start+SUNXI_DAC_TXDATA;
+	sunxi_cpudai->playback_dma_param.dma_drq_type_num = DRQDST_AUDIO_CODEC;
+	sunxi_cpudai->playback_dma_param.dst_maxburst = 4;
+	sunxi_cpudai->playback_dma_param.src_maxburst = 4;
+
+	sunxi_cpudai->capture_dma_param.dma_addr = res.start+SUNXI_ADC_RXDATA;
+	sunxi_cpudai->capture_dma_param.dma_drq_type_num = DRQSRC_AUDIO_CODEC;
+	sunxi_cpudai->capture_dma_param.src_maxburst = 4;
+	sunxi_cpudai->capture_dma_param.dst_maxburst = 4;
+
+	ret = snd_soc_register_component(&pdev->dev, &sunxi_asoc_cpudai_component,
+					&sunxi_cpudai_dai, 1);
+	if (ret) {
+		dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
+		ret = -EBUSY;
+		goto err_devm_kfree;
+	}
+
+	ret = asoc_dma_platform_register(&pdev->dev, 0);
+	if (ret) {
+		dev_err(&pdev->dev, "Could not register PCM: %d\n", ret);
+		goto err_unregister_component;
+	}
+
+	return 0;
+
+err_unregister_component:
+	snd_soc_unregister_component(&pdev->dev);
+err_devm_kfree:
+	devm_kfree(&pdev->dev, sunxi_cpudai);
+err_node_put:
+	of_node_put(np);
+	return ret;
+}
+
+static int __exit sunxi_asoc_cpudai_dev_remove(struct platform_device *pdev)
+{
+	struct sunxi_cpudai_info *sunxi_cpudai = dev_get_drvdata(&pdev->dev);
+
+	asoc_dma_platform_unregister(&pdev->dev);
+	snd_soc_unregister_component(&pdev->dev);
+	devm_kfree(&pdev->dev, sunxi_cpudai);
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static struct platform_driver sunxi_asoc_cpudai_driver = {
+	.driver = {
+		.name = DRV_NAME,
+		.owner = THIS_MODULE,
+		.of_match_table = sunxi_asoc_cpudai_of_match,
+	},
+	.probe = sunxi_asoc_cpudai_dev_probe,
+	.remove = __exit_p(sunxi_asoc_cpudai_dev_remove),
+};
+
+module_platform_driver(sunxi_asoc_cpudai_driver);
+
+MODULE_AUTHOR("wolfgang huang <huangjinhui@allwinnertech.com>");
+MODULE_DESCRIPTION("SUNXI Internal cpudai ASoC Interface");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);