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

diff -drupN a/sound/soc/sunxi/sunxi-sndhdmi.c b/sound/soc/sunxi/sunxi-sndhdmi.c
--- a/sound/soc/sunxi/sunxi-sndhdmi.c	1970-01-01 03:00:00.000000000 +0300
+++ b/sound/soc/sunxi/sunxi-sndhdmi.c	2022-06-12 05:28:14.000000000 +0300
@@ -0,0 +1,262 @@
+/*
+ * sound\soc\sunxi\sunxi-sndhdmi.c
+ * (C) Copyright 2014-2016
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ * huangxin <huangxin@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/clk.h>
+#include <linux/mutex.h>
+
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include <linux/io.h>
+#include <linux/of.h>
+
+#include "sunxi-pcm.h"
+
+static struct sndhdmi_priv sunxi_tdmhdmi;
+
+/*
+ * sun8iw6 sound machine:
+ * i2s0 -> sndi2s0, i2s1 -> snddi2s1,
+ * i2s2 -> sndhdmi, tdm -> snddaudio0.
+ */
+
+static int sunxi_hdmiaudio_set_audio_mode(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	sunxi_tdmhdmi.hdmi_format = ucontrol->value.integer.value[0];
+	return 0;
+}
+
+static int sunxi_hdmiaudio_get_audio_mode(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.integer.value[0] = sunxi_tdmhdmi.hdmi_format;
+	return 0;
+}
+
+static const char *hdmiaudio_format_function[] = {"null", "pcm", "AC3",
+		"MPEG1", "MP3", "MPEG2", "AAC", "DTS", "ATRAC", "ONE_BIT_AUDIO",
+		"DOLBY_DIGITAL_PLUS", "DTS_HD", "MAT", "WMAPRO"};
+
+static const struct soc_enum hdmiaudio_format_enum[] = {
+	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(hdmiaudio_format_function),
+			hdmiaudio_format_function),
+};
+
+/* pcm dts ac3 Audio Mode Select */
+static const struct snd_kcontrol_new sunxi_hdmiaudio_controls[] = {
+	SOC_ENUM_EXT("hdmi audio format Function", hdmiaudio_format_enum[0],
+		sunxi_hdmiaudio_get_audio_mode, sunxi_hdmiaudio_set_audio_mode),
+};
+
+static int sunxi_sndhdmi_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 *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_card *card = rtd->card;
+	unsigned int freq;
+	unsigned int clk_div;
+	int ret;
+#ifdef CONFIG_ARCH_SUN8IW6
+	unsigned long sample_rate = params_rate(params);
+#endif
+	switch (params_rate(params)) {
+	case 8000:
+	case 16000:
+	case 32000:
+	case 64000:
+	case 128000:
+	case 12000:
+	case 24000:
+	case 48000:
+	case 96000:
+	case 192000:
+#ifdef CONFIG_AHUB_FREQ_REQ
+		freq = 98304000;
+#else
+		freq = 24576000;
+#endif
+		break;
+	case	11025:
+	case	22050:
+	case	44100:
+	case	88200:
+	case	176400:
+#ifdef CONFIG_AHUB_FREQ_REQ
+		freq = 90316800;
+#else
+		freq = 22579200;
+#endif
+		break;
+	default:
+		dev_err(card->dev, "unsupport freq\n");
+		return -EINVAL;
+	}
+
+	/*set system clock source freq and set the mode as i2s0 or pcm*/
+	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, freq, 0);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * I2S mode normal bit clock + frame\codec clk & FRM slave
+	 */
+	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+			SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+	if (ret < 0)
+		return ret;
+
+	clk_div = freq / params_rate(params);
+#ifdef CONFIG_ARCH_SUN8IW6
+	ret = snd_soc_dai_set_clkdiv(cpu_dai, 0, sample_rate);
+#else
+	ret = snd_soc_dai_set_clkdiv(cpu_dai, 0, clk_div);
+#endif
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static struct snd_soc_ops sunxi_sndhdmi_ops = {
+	.hw_params	= sunxi_sndhdmi_hw_params,
+};
+
+static int sunxi_sndhdmi_probe(struct snd_soc_card *card)
+{
+	int ret;
+
+	ret = snd_soc_add_card_controls(card, sunxi_hdmiaudio_controls,
+				ARRAY_SIZE(sunxi_hdmiaudio_controls));
+	if (ret)
+		dev_warn(card->dev,
+			"Failed to register audio mode control.\n");
+	return 0;
+}
+
+static struct snd_soc_dai_link sunxi_sndhdmi_dai_link = {
+	.name		= "HDMIAUDIO",
+	.stream_name	= "SUNXI-HDMIAUDIO",
+	.cpu_dai_name	= "sunxi-hdmiaudio.0",
+	.codec_dai_name	= "audiohdmi-dai",
+	.platform_name	= "sunxi-hdmiaudio-pcm-audio.0",
+	.codec_name	= "sunxi-hdmiaudio-codec.0",
+	.ops		= &sunxi_sndhdmi_ops,
+};
+
+static struct snd_soc_card snd_soc_sunxi_sndhdmi = {
+	.name		= "sndhdmi",
+	.owner		= THIS_MODULE,
+	.probe		= sunxi_sndhdmi_probe,
+	.dai_link	= &sunxi_sndhdmi_dai_link,
+	.num_links	= 1,
+};
+
+static int sunxi_sndhdmi_dev_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &snd_soc_sunxi_sndhdmi;
+	struct device_node *np = pdev->dev.of_node;
+	int ret;
+
+	card->dev = &pdev->dev;
+	sunxi_tdmhdmi.hdmi_format = 1;
+
+#ifdef CONFIG_SND_SUNXI_SOC_AHUB
+	sunxi_sndhdmi_dai_link.cpu_dai_name = NULL;
+	sunxi_sndhdmi_dai_link.cpu_of_node = of_parse_phandle(np,
+					"sunxi,cpudai-controller", 0);
+	if (!sunxi_sndhdmi_dai_link.cpu_of_node) {
+		dev_err(&pdev->dev, "Property 'sunxi,cpudai-controller' missing or invalid\n");
+		return -EINVAL;
+	}
+	sunxi_sndhdmi_dai_link.platform_name = "snd-soc-dummy";
+#else
+	if (np) {
+		sunxi_sndhdmi_dai_link.cpu_dai_name = NULL;
+		sunxi_sndhdmi_dai_link.cpu_of_node = of_parse_phandle(np,
+					"sunxi,hdmi-controller", 0);
+		if (!sunxi_sndhdmi_dai_link.cpu_of_node) {
+			dev_err(&pdev->dev,
+				"Property 'sunxi,hdmi-controller' missing\n");
+			ret = -EINVAL;
+		}
+		sunxi_sndhdmi_dai_link.platform_name = NULL;
+		sunxi_sndhdmi_dai_link.platform_of_node =
+				sunxi_sndhdmi_dai_link.cpu_of_node;
+	} else {
+		dev_err(&pdev->dev, "hdmi dt node missing or invalid\n");
+		ret = -EINVAL;
+	}
+#endif
+	snd_soc_card_set_drvdata(card, &sunxi_tdmhdmi);
+	ret = snd_soc_register_card(card);
+	if (ret) {
+		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
+	}
+
+	dev_warn(&pdev->dev, "[%s] register card finished.\n", __func__);
+
+	return ret;
+}
+
+static int __exit sunxi_sndhdmi_dev_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	snd_soc_unregister_card(card);
+
+	dev_warn(&pdev->dev, "[%s] unregister card finished.\n", __func__);
+
+	return 0;
+}
+
+static const struct of_device_id sunxi_hdmi_of_match[] = {
+	{ .compatible = "allwinner,sunxi-hdmi-machine", },
+	{},
+};
+
+static struct platform_driver sunxi_hdmiaudio_driver = {
+	.driver = {
+		.name = "sndhdmi",
+		.owner = THIS_MODULE,
+		.of_match_table = sunxi_hdmi_of_match,
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = sunxi_sndhdmi_dev_probe,
+	.remove = __exit_p(sunxi_sndhdmi_dev_remove),
+};
+
+#ifdef CONFIG_ARCH_SUN50IW6
+static int __init sunxi_hdmiaudio_driver_init(void)
+{
+	return platform_driver_register(&sunxi_hdmiaudio_driver);
+}
+late_initcall(sunxi_hdmiaudio_driver_init);
+
+static void __exit sunxi_hdmiaudio_driver_exit(void)
+{
+	platform_driver_unregister(&sunxi_hdmiaudio_driver);
+}
+module_exit(sunxi_hdmiaudio_driver_exit);
+#else
+module_platform_driver(sunxi_hdmiaudio_driver);
+#endif
+
+MODULE_AUTHOR("wolfgang huang <huangjinhui@allwinnertech.com>");
+MODULE_DESCRIPTION("SUNXI HDMI ASoC Machine driver");
+MODULE_LICENSE("GPL");