kernel_samsung_a34x-permissive/sound/soc/mediatek/audio_dsp/v1/mtk-dsp-pcm.c

// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2018 MediaTek Inc.

#include <linux/delay.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/pm_runtime.h>
#include <sound/soc.h>

#include "mtk-dsp-platform-driver.h"
#include "mtk-base-dsp.h"

#include "mtk-dsp-common.h"
#include "mtk-dsp-mem-control.h"

#define SND_DSP_DTS_SIZE (4)
#define MTK_PCM_RATES (SNDRV_PCM_RATE_8000_48000 |\
		       SNDRV_PCM_RATE_88200 |\
		       SNDRV_PCM_RATE_96000 |\
		       SNDRV_PCM_RATE_176400 |\
		       SNDRV_PCM_RATE_192000)

#define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
			 SNDRV_PCM_FMTBIT_S24_LE |\
			 SNDRV_PCM_FMTBIT_S32_LE)

static const struct snd_pcm_hardware audio_dsp_hardware = {
	.info = (SNDRV_PCM_INFO_MMAP |
		 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
		 SNDRV_PCM_INFO_INTERLEAVED |
		 SNDRV_PCM_INFO_RESUME |
		 SNDRV_PCM_INFO_MMAP_VALID),
	.formats = (SNDRV_PCM_FMTBIT_S16_LE |
		    SNDRV_PCM_FMTBIT_S24_LE |
		    SNDRV_PCM_FMTBIT_S32_LE),
	.rates = MTK_PCM_RATES,
	.period_bytes_min = 256,
	.period_bytes_max = 4 * 48 * 1024,
	.periods_min = 2,
	.periods_max = 4096,
	.buffer_bytes_max = 8 * 48 * 1024,
	.fifo_size = 0,
};

static char *dsp_task_dsp_name[AUDIO_TASK_DAI_NUM] = {
	[AUDIO_TASK_VOIP_ID]        = "mtk_dsp_voip",
	[AUDIO_TASK_PRIMARY_ID]     = "mtk_dsp_primary",
	[AUDIO_TASK_OFFLOAD_ID]     = "mtk_dsp_offload",
	[AUDIO_TASK_DEEPBUFFER_ID]  = "mtk_dsp_deep",
	[AUDIO_TASK_PLAYBACK_ID]    = "mtk_dsp_playback",
	[AUDIO_TASK_CAPTURE_UL1_ID] = "mtk_dsp_capture1",
	[AUDIO_TASK_A2DP_ID]        = "mtk_dsp_a2dp",
	[AUDIO_TASK_DATAPROVIDER_ID] = "mtk_dsp_dataprovider",
	[AUDIO_TASK_CALL_FINAL_ID]  = "mtk_dsp_call_final",
	[AUDIO_TASK_KTV_ID]         = "mtk_dsp_ktv",
	[AUDIO_TASK_CAPTURE_RAW_ID] = "mtk_dsp_capture_raw",
};

static int dsp_runtime_suspend(struct device *dev)
{
	return 0;
}

static int dsp_runtime_resume(struct device *dev)
{
	return 0;
}

static int dsp_pcm_taskattr_init(struct platform_device *pdev)
{
	struct mtk_adsp_task_attr task_attr;
	int ret = 0;
	int dsp_id = 0;

	pr_info("%s\n", __func__);
	if (pdev->dev.of_node) {
		for (dsp_id = 0; dsp_id < AUDIO_TASK_DAI_NUM; dsp_id++) {
			ret = of_property_read_u32_array(pdev->dev.of_node,
						 dsp_task_dsp_name[dsp_id],
						 (unsigned int *)&task_attr,
						 SND_DSP_DTS_SIZE);
			if (ret != 0) {
				pr_info("%s mtk_dsp_voip error dsp_id[%d]\n",
					__func__, dsp_id);
				continue;
			}
			set_task_attr(dsp_id,
				      ADSP_TASK_ATTR_DEFAULT,
				      task_attr.default_enable);
			set_task_attr(dsp_id,
				      ADSP_TASK_ATTR_MEMDL,
				      task_attr.afe_memif_dl);
			set_task_attr(dsp_id,
				      ADSP_TASK_ATTR_MEMUL,
				      task_attr.afe_memif_ul);
			set_task_attr(dsp_id,
				      ADSP_TASK_ATTR_MEMREF,
				      task_attr.afe_memif_ref);
			if (dsp_id == AUDIO_TASK_PLAYBACK_ID) {
				ret = of_property_read_u32(pdev->dev.of_node,
					"swdsp_smartpa_process_enable",
					&(task_attr.spk_protect_in_dsp));
				if (ret)
					task_attr.spk_protect_in_dsp = 0;
				set_task_attr(dsp_id,
					      ADSP_TASK_ATTR_SMARTPA,
					      task_attr.spk_protect_in_dsp);
			}
		}
		dump_all_task_attr();
	}
	return 0;
}

static int dsp_pcm_dev_probe(struct platform_device *pdev)
{
	struct mtk_base_dsp *dsp;
	int ret = 0;
	struct device *dev;

	dsp = devm_kzalloc(&pdev->dev, sizeof(struct mtk_base_dsp), GFP_KERNEL);

	if (!dsp)
		return -ENOMEM;

	/*  register dsp dai driver*/
	dai_dsp_register(pdev, dsp);
	dsp->mtk_dsp_hardware = &audio_dsp_hardware;

	dsp->dev = &pdev->dev;
	dev = dsp->dev;

	dsp->runtime_resume = dsp_runtime_resume;
	dsp->runtime_suspend = dsp_runtime_suspend;

	dsp->request_dram_resource = dsp_dram_request;
	dsp->release_dram_resource = dsp_dram_release;

	platform_set_drvdata(pdev, dsp);
	pm_runtime_enable(&pdev->dev);

	if (pdev->dev.of_node) {
		pr_info("%s of_node->name:%s fullname:%s\n", __func__,
			pdev->dev.of_node->name, pdev->dev.of_node->full_name);
	}

	ret = snd_soc_register_component(&pdev->dev,
					 &mtk_dsp_pcm_platform, NULL, 0);
	if (ret) {
		dev_warn(&pdev->dev, "err_platform\n");
		goto err_platform;
	}

	ret = devm_snd_soc_register_component(&pdev->dev,
					      dsp->component_driver,
					      dsp->dai_drivers,
					      dsp->num_dai_drivers);

	set_ipi_recv_private((void *)dsp);
	set_dsp_base((void *)dsp);
	dsp_pcm_taskattr_init(pdev);

	ret = init_mtk_adsp_dram_segment();
	if (ret) {
		pr_info("init_mtk_adsp_dram_segment fail\n");
		goto err_platform;
	}
	dump_all_adsp_dram();

	ret = mtk_adsp_init_gen_pool(dsp);
	if (ret) {
		pr_info("init_gen_pool fail\n");
		goto err_platform;
	}
	ret = mtk_init_adsp_audio_share_mem(dsp);
	if (ret) {
		pr_info("init share mem fail\n");
		goto err_platform;
	}
	pr_info("%s share mem\n", __func__);

	mtk_audio_register_notify();
	return 0;

err_platform:
	pr_err("%s\n", __func__);
	snd_soc_unregister_component(&pdev->dev);

	return ret;
}

static int dsp_pcm_dev_remove(struct platform_device *pdev)
{
	return 0;
}

static const struct of_device_id dsp_pcm_dt_match[] = {
	{ .compatible = "mediatek,snd_audio_dsp", },
	{},
};
MODULE_DEVICE_TABLE(of, dsp_pcm_dt_match);

static const struct dev_pm_ops audio_dsp_pm_ops = {
	SET_RUNTIME_PM_OPS(dsp_runtime_suspend,
			   dsp_runtime_resume, NULL)
};

static struct platform_driver dsp_pcm_driver = {
	.driver = {
		   .name = "snd_audio_dsp",
		   .owner = THIS_MODULE,
		   .of_match_table = dsp_pcm_dt_match,
#ifdef CONFIG_PM
		   .pm = &audio_dsp_pm_ops,
#endif
	},
	.probe = dsp_pcm_dev_probe,
	.remove = dsp_pcm_dev_remove,
};

module_platform_driver(dsp_pcm_driver);

MODULE_DESCRIPTION("Mediatek ALSA SoC dsp platform driver for audio dsp");
MODULE_AUTHOR("Chipeng Chang <Chipeng.Chang@mediatek.com>");
MODULE_LICENSE("GPL v2");