path: root/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c

// SPDX-License-Identifier: GPL-2.0
//
// Mediatek ALSA SoC AFE platform driver for 8183
//
// Copyright (c) 2018 MediaTek Inc.
// Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>

#include <linux/delay.h>
#include <linux/module.h>
#include <linux/mfd/syscon.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>

#include "mt8183-afe-common.h"
#include "mt8183-afe-clk.h"
#include "mt8183-interconnection.h"
#include "mt8183-reg.h"
#include "../common/mtk-afe-platform-driver.h"
#include "../common/mtk-afe-fe-dai.h"

enum {
	MTK_AFE_RATE_8K = 0,
	MTK_AFE_RATE_11K = 1,
	MTK_AFE_RATE_12K = 2,
	MTK_AFE_RATE_384K = 3,
	MTK_AFE_RATE_16K = 4,
	MTK_AFE_RATE_22K = 5,
	MTK_AFE_RATE_24K = 6,
	MTK_AFE_RATE_130K = 7,
	MTK_AFE_RATE_32K = 8,
	MTK_AFE_RATE_44K = 9,
	MTK_AFE_RATE_48K = 10,
	MTK_AFE_RATE_88K = 11,
	MTK_AFE_RATE_96K = 12,
	MTK_AFE_RATE_176K = 13,
	MTK_AFE_RATE_192K = 14,
	MTK_AFE_RATE_260K = 15,
};

enum {
	MTK_AFE_DAI_MEMIF_RATE_8K = 0,
	MTK_AFE_DAI_MEMIF_RATE_16K = 1,
	MTK_AFE_DAI_MEMIF_RATE_32K = 2,
	MTK_AFE_DAI_MEMIF_RATE_48K = 3,
};

enum {
	MTK_AFE_PCM_RATE_8K = 0,
	MTK_AFE_PCM_RATE_16K = 1,
	MTK_AFE_PCM_RATE_32K = 2,
	MTK_AFE_PCM_RATE_48K = 3,
};

unsigned int mt8183_general_rate_transform(struct device *dev,
					   unsigned int rate)
{
	switch (rate) {
	case 8000:
		return MTK_AFE_RATE_8K;
	case 11025:
		return MTK_AFE_RATE_11K;
	case 12000:
		return MTK_AFE_RATE_12K;
	case 16000:
		return MTK_AFE_RATE_16K;
	case 22050:
		return MTK_AFE_RATE_22K;
	case 24000:
		return MTK_AFE_RATE_24K;
	case 32000:
		return MTK_AFE_RATE_32K;
	case 44100:
		return MTK_AFE_RATE_44K;
	case 48000:
		return MTK_AFE_RATE_48K;
	case 88200:
		return MTK_AFE_RATE_88K;
	case 96000:
		return MTK_AFE_RATE_96K;
	case 130000:
		return MTK_AFE_RATE_130K;
	case 176400:
		return MTK_AFE_RATE_176K;
	case 192000:
		return MTK_AFE_RATE_192K;
	case 260000:
		return MTK_AFE_RATE_260K;
	default:
		dev_warn(dev, "%s(), rate %u invalid, use %d!!!\n",
			 __func__, rate, MTK_AFE_RATE_48K);
		return MTK_AFE_RATE_48K;
	}
}

static unsigned int dai_memif_rate_transform(struct device *dev,
					     unsigned int rate)
{
	switch (rate) {
	case 8000:
		return MTK_AFE_DAI_MEMIF_RATE_8K;
	case 16000:
		return MTK_AFE_DAI_MEMIF_RATE_16K;
	case 32000:
		return MTK_AFE_DAI_MEMIF_RATE_32K;
	case 48000:
		return MTK_AFE_DAI_MEMIF_RATE_48K;
	default:
		dev_warn(dev, "%s(), rate %u invalid, use %d!!!\n",
			 __func__, rate, MTK_AFE_DAI_MEMIF_RATE_16K);
		return MTK_AFE_DAI_MEMIF_RATE_16K;
	}
}

unsigned int mt8183_rate_transform(struct device *dev,
				   unsigned int rate, int aud_blk)
{
	switch (aud_blk) {
	case MT8183_MEMIF_MOD_DAI:
		return dai_memif_rate_transform(dev, rate);
	default:
		return mt8183_general_rate_transform(dev, rate);
	}
}

static const struct snd_pcm_hardware mt8183_afe_hardware = {
	.info = SNDRV_PCM_INFO_MMAP |
		SNDRV_PCM_INFO_INTERLEAVED |
		SNDRV_PCM_INFO_MMAP_VA