ASoC: qcom: add machine driver for sc8280xp (295aeea6) · Commits · EulixOS / Software / Kernel

sound/soc/qcom/Kconfig

+12 −0

Original line number	Diff line number	Diff line
		@@ -173,6 +173,18 @@ config SND_SOC_SM8250
		SM8250 SoC-based systems.
		Say Y if you want to use audio device on this SoCs.

		config SND_SOC_SC8280XP
		tristate "SoC Machine driver for SC8280XP boards"
		depends on QCOM_APR \|\| COMPILE_TEST
		depends on SOUNDWIRE
		depends on COMMON_CLK
		select SND_SOC_QDSP6
		select SND_SOC_QCOM_COMMON
		help
		To add support for audio on Qualcomm Technologies Inc.
		SC8280XP SoC-based systems.
		Say Y if you want to use audio device on this SoCs.

		config SND_SOC_SC7180
		tristate "SoC Machine driver for SC7180 boards"
		depends on I2C && GPIOLIB

sound/soc/qcom/Makefile

+2 −0

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		@@ -26,6 +26,7 @@ snd-soc-sc7180-objs := sc7180.o
		snd-soc-sc7280-objs := sc7280.o
		snd-soc-sdm845-objs := sdm845.o
		snd-soc-sm8250-objs := sm8250.o
		snd-soc-sc8280xp-objs := sc8280xp.o
		snd-soc-qcom-common-objs := common.o

		obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o
		@@ -33,6 +34,7 @@ obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o
		obj-$(CONFIG_SND_SOC_MSM8996) += snd-soc-apq8096.o
		obj-$(CONFIG_SND_SOC_SC7180) += snd-soc-sc7180.o
		obj-$(CONFIG_SND_SOC_SC7280) += snd-soc-sc7280.o
		obj-$(CONFIG_SND_SOC_SC8280XP) += snd-soc-sc8280xp.o
		obj-$(CONFIG_SND_SOC_SDM845) += snd-soc-sdm845.o
		obj-$(CONFIG_SND_SOC_SM8250) += snd-soc-sm8250.o
		obj-$(CONFIG_SND_SOC_QCOM_COMMON) += snd-soc-qcom-common.o

sound/soc/qcom/sc8280xp.c

0 → 100644

+157 −0

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		// SPDX-License-Identifier: GPL-2.0
		// Copyright (c) 2022, Linaro Limited

		#include <linux/module.h>
		#include <linux/platform_device.h>
		#include <linux/of_device.h>
		#include <sound/soc.h>
		#include <sound/soc-dapm.h>
		#include <sound/pcm.h>
		#include <linux/soundwire/sdw.h>
		#include <sound/jack.h>
		#include <linux/input-event-codes.h>
		#include "qdsp6/q6afe.h"
		#include "common.h"

		#define DRIVER_NAME "sc8280xp"

		struct sc8280xp_snd_data {
		bool stream_prepared[AFE_PORT_MAX];
		struct snd_soc_card *card;
		struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];
		struct snd_soc_jack jack;
		bool jack_setup;
		};

		static int sc8280xp_snd_init(struct snd_soc_pcm_runtime *rtd)
		{
		struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);

		return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
		}

		static int sc8280xp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
		struct snd_pcm_hw_params *params)
		{
		struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
		struct snd_interval *rate = hw_param_interval(params,
		SNDRV_PCM_HW_PARAM_RATE);
		struct snd_interval *channels = hw_param_interval(params,
		SNDRV_PCM_HW_PARAM_CHANNELS);

		rate->min = rate->max = 48000;
		channels->min = 2;
		channels->max = 2;
		switch (cpu_dai->id) {
		case TX_CODEC_DMA_TX_0:
		case TX_CODEC_DMA_TX_1:
		case TX_CODEC_DMA_TX_2:
		case TX_CODEC_DMA_TX_3:
		channels->min = 1;
		break;
		default:
		break;
		}


		return 0;
		}

		static int sc8280xp_snd_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 = asoc_rtd_to_cpu(rtd, 0);
		struct sc8280xp_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);

		return qcom_snd_sdw_hw_params(substream, params, &pdata->sruntime[cpu_dai->id]);
		}

		static int sc8280xp_snd_prepare(struct snd_pcm_substream *substream)
		{
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
		struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
		struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];

		return qcom_snd_sdw_prepare(substream, sruntime,
		&data->stream_prepared[cpu_dai->id]);
		}

		static int sc8280xp_snd_hw_free(struct snd_pcm_substream *substream)
		{
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
		struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
		struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];

		return qcom_snd_sdw_hw_free(substream, sruntime,
		&data->stream_prepared[cpu_dai->id]);
		}

		static const struct snd_soc_ops sc8280xp_be_ops = {
		.hw_params = sc8280xp_snd_hw_params,
		.hw_free = sc8280xp_snd_hw_free,
		.prepare = sc8280xp_snd_prepare,
		};

		static void sc8280xp_add_be_ops(struct snd_soc_card *card)
		{
		struct snd_soc_dai_link *link;
		int i;

		for_each_card_prelinks(card, i, link) {
		if (link->no_pcm == 1) {
		link->init = sc8280xp_snd_init;
		link->be_hw_params_fixup = sc8280xp_be_hw_params_fixup;
		link->ops = &sc8280xp_be_ops;
		}
		}
		}

		static int sc8280xp_platform_probe(struct platform_device *pdev)
		{
		struct snd_soc_card *card;
		struct sc8280xp_snd_data *data;
		struct device *dev = &pdev->dev;
		int ret;

		card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
		if (!card)
		return -ENOMEM;
		card->owner = THIS_MODULE;
		/* Allocate the private data */
		data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
		if (!data)
		return -ENOMEM;

		card->dev = dev;
		dev_set_drvdata(dev, card);
		snd_soc_card_set_drvdata(card, data);
		ret = qcom_snd_parse_of(card);
		if (ret)
		return ret;

		card->driver_name = DRIVER_NAME;
		sc8280xp_add_be_ops(card);
		return devm_snd_soc_register_card(dev, card);
		}

		static const struct of_device_id snd_sc8280xp_dt_match[] = {
		{.compatible = "qcom,sc8280xp-sndcard",},
		{}
		};

		MODULE_DEVICE_TABLE(of, snd_sc8280xp_dt_match);

		static struct platform_driver snd_sc8280xp_driver = {
		.probe = sc8280xp_platform_probe,
		.driver = {
		.name = "snd-sc8280xp",
		.of_match_table = snd_sc8280xp_dt_match,
		},
		};
		module_platform_driver(snd_sc8280xp_driver);
		MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
		MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver");
		MODULE_LICENSE("GPL v2");