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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/sound/soc/mxs/mxs-saif.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */

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/*

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 * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.

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 */

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#ifndef _MXS_SAIF_H

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#define _MXS_SAIF_H

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#define SAIF_CTRL	0x0

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#define SAIF_STAT	0x10

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#define SAIF_DATA	0x20

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#define SAIF_VERSION	0X30

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/* SAIF_CTRL */

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#define BM_SAIF_CTRL_SFTRST		0x80000000

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#define BM_SAIF_CTRL_CLKGATE		0x40000000

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#define BP_SAIF_CTRL_BITCLK_MULT_RATE	27

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#define BM_SAIF_CTRL_BITCLK_MULT_RATE	0x38000000

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#define BF_SAIF_CTRL_BITCLK_MULT_RATE(v) \

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		(((v) << 27) & BM_SAIF_CTRL_BITCLK_MULT_RATE)

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#define BM_SAIF_CTRL_BITCLK_BASE_RATE	0x04000000

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#define BM_SAIF_CTRL_FIFO_ERROR_IRQ_EN	0x02000000

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#define BM_SAIF_CTRL_FIFO_SERVICE_IRQ_EN	0x01000000

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#define BP_SAIF_CTRL_RSRVD2		21

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#define BM_SAIF_CTRL_RSRVD2		0x00E00000

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#define BP_SAIF_CTRL_DMAWAIT_COUNT	16

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#define BM_SAIF_CTRL_DMAWAIT_COUNT	0x001F0000

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#define BF_SAIF_CTRL_DMAWAIT_COUNT(v) \

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		(((v) << 16) & BM_SAIF_CTRL_DMAWAIT_COUNT)

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#define BP_SAIF_CTRL_CHANNEL_NUM_SELECT 14

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#define BM_SAIF_CTRL_CHANNEL_NUM_SELECT 0x0000C000

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#define BF_SAIF_CTRL_CHANNEL_NUM_SELECT(v) \

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		(((v) << 14) & BM_SAIF_CTRL_CHANNEL_NUM_SELECT)

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#define BM_SAIF_CTRL_LRCLK_PULSE	0x00002000

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#define BM_SAIF_CTRL_BIT_ORDER		0x00001000

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#define BM_SAIF_CTRL_DELAY		0x00000800

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#define BM_SAIF_CTRL_JUSTIFY		0x00000400

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#define BM_SAIF_CTRL_LRCLK_POLARITY	0x00000200

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#define BM_SAIF_CTRL_BITCLK_EDGE	0x00000100

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#define BP_SAIF_CTRL_WORD_LENGTH	4

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#define BM_SAIF_CTRL_WORD_LENGTH	0x000000F0

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#define BF_SAIF_CTRL_WORD_LENGTH(v) \

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		(((v) << 4) & BM_SAIF_CTRL_WORD_LENGTH)

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#define BM_SAIF_CTRL_BITCLK_48XFS_ENABLE	0x00000008

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#define BM_SAIF_CTRL_SLAVE_MODE		0x00000004

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#define BM_SAIF_CTRL_READ_MODE		0x00000002

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#define BM_SAIF_CTRL_RUN		0x00000001

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/* SAIF_STAT */

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#define BM_SAIF_STAT_PRESENT		0x80000000

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#define BP_SAIF_STAT_RSRVD2		17

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#define BM_SAIF_STAT_RSRVD2		0x7FFE0000

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#define BF_SAIF_STAT_RSRVD2(v) \

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		(((v) << 17) & BM_SAIF_STAT_RSRVD2)

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#define BM_SAIF_STAT_DMA_PREQ		0x00010000

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#define BP_SAIF_STAT_RSRVD1		7

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#define BM_SAIF_STAT_RSRVD1		0x0000FF80

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#define BF_SAIF_STAT_RSRVD1(v) \

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		(((v) << 7) & BM_SAIF_STAT_RSRVD1)

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#define BM_SAIF_STAT_FIFO_UNDERFLOW_IRQ 0x00000040

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#define BM_SAIF_STAT_FIFO_OVERFLOW_IRQ	0x00000020

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#define BM_SAIF_STAT_FIFO_SERVICE_IRQ	0x00000010

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#define BP_SAIF_STAT_RSRVD0		1

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#define BM_SAIF_STAT_RSRVD0		0x0000000E

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#define BF_SAIF_STAT_RSRVD0(v) \

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		(((v) << 1) & BM_SAIF_STAT_RSRVD0)

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#define BM_SAIF_STAT_BUSY		0x00000001

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/* SAFI_DATA */

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#define BP_SAIF_DATA_PCM_RIGHT		16

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#define BM_SAIF_DATA_PCM_RIGHT		0xFFFF0000

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#define BF_SAIF_DATA_PCM_RIGHT(v) \

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		(((v) << 16) & BM_SAIF_DATA_PCM_RIGHT)

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#define BP_SAIF_DATA_PCM_LEFT		0

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#define BM_SAIF_DATA_PCM_LEFT		0x0000FFFF

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#define BF_SAIF_DATA_PCM_LEFT(v)	\

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		(((v) << 0) & BM_SAIF_DATA_PCM_LEFT)

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/* SAIF_VERSION */

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#define BP_SAIF_VERSION_MAJOR		24

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#define BM_SAIF_VERSION_MAJOR		0xFF000000

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#define BF_SAIF_VERSION_MAJOR(v) \

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		(((v) << 24) & BM_SAIF_VERSION_MAJOR)

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#define BP_SAIF_VERSION_MINOR		16

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#define BM_SAIF_VERSION_MINOR		0x00FF0000

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#define BF_SAIF_VERSION_MINOR(v) \

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		(((v) << 16) & BM_SAIF_VERSION_MINOR)

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#define BP_SAIF_VERSION_STEP		0

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#define BM_SAIF_VERSION_STEP		0x0000FFFF

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#define BF_SAIF_VERSION_STEP(v) \

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		(((v) << 0) & BM_SAIF_VERSION_STEP)

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#define MXS_SAIF_MCLK		0

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#include "mxs-pcm.h"

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struct mxs_saif {

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	struct device *dev;

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	struct clk *clk;

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	unsigned int mclk;

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	unsigned int mclk_in_use;

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	void __iomem *base;

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	unsigned int id;

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	unsigned int master_id;

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	unsigned int cur_rate;

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	unsigned int ongoing;

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	u32 fifo_underrun;

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	u32 fifo_overrun;

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	enum {

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		MXS_SAIF_STATE_STOPPED,

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		MXS_SAIF_STATE_RUNNING,

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	} state;

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};

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extern int mxs_saif_put_mclk(unsigned int saif_id);

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extern int mxs_saif_get_mclk(unsigned int saif_id, unsigned int mclk,

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					unsigned int rate);

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#endif

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