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/* SPDX-License-Identifier: GPL-2.0 */
/*
* fsl_spdif.h - ALSA S/PDIF interface for the Freescale i.MX SoC
*
* Copyright (C) 2013 Freescale Semiconductor, Inc.
*
* Author: Nicolin Chen <b42378@freescale.com>
*
* Based on fsl_ssi.h
* Author: Timur Tabi <timur@freescale.com>
* Copyright 2007-2008 Freescale Semiconductor, Inc.
*/
#ifndef _FSL_SPDIF_DAI_H
#define _FSL_SPDIF_DAI_H
/* S/PDIF Register Map */
#define REG_SPDIF_SCR 0x0 /* SPDIF Configuration Register */
#define REG_SPDIF_SRCD 0x4 /* CDText Control Register */
#define REG_SPDIF_SRPC 0x8 /* PhaseConfig Register */
#define REG_SPDIF_SIE 0xc /* InterruptEn Register */
#define REG_SPDIF_SIS 0x10 /* InterruptStat Register */
#define REG_SPDIF_SIC 0x10 /* InterruptClear Register */
#define REG_SPDIF_SRL 0x14 /* SPDIFRxLeft Register */
#define REG_SPDIF_SRR 0x18 /* SPDIFRxRight Register */
#define REG_SPDIF_SRCSH 0x1c /* SPDIFRxCChannel_h Register */
#define REG_SPDIF_SRCSL 0x20 /* SPDIFRxCChannel_l Register */
#define REG_SPDIF_SRU 0x24 /* UchannelRx Register */
#define REG_SPDIF_SRQ 0x28 /* QchannelRx Register */
#define REG_SPDIF_STL 0x2C /* SPDIFTxLeft Register */
#define REG_SPDIF_STR 0x30 /* SPDIFTxRight Register */
#define REG_SPDIF_STCSCH 0x34 /* SPDIFTxCChannelCons_h Register */
#define REG_SPDIF_STCSCL 0x38 /* SPDIFTxCChannelCons_l Register */
#define REG_SPDIF_SRFM 0x44 /* FreqMeas Register */
#define REG_SPDIF_STC 0x50 /* SPDIFTxClk Register */
/* SPDIF Configuration register */
#define SCR_RXFIFO_CTL_OFFSET 23
#define SCR_RXFIFO_CTL_MASK (1 << SCR_RXFIFO_CTL_OFFSET)
#define SCR_RXFIFO_CTL_ZERO (1 << SCR_RXFIFO_CTL_OFFSET)
#define SCR_RXFIFO_OFF_OFFSET 22
#define SCR_RXFIFO_OFF_MASK (1 << SCR_RXFIFO_OFF_OFFSET)
#define SCR_RXFIFO_OFF (1 << SCR_RXFIFO_OFF_OFFSET)
#define SCR_RXFIFO_RST_OFFSET 21
#define SCR_RXFIFO_RST_MASK (1 << SCR_RXFIFO_RST_OFFSET)
#define SCR_RXFIFO_RST (1 << SCR_RXFIFO_RST_OFFSET)
#define SCR_RXFIFO_FSEL_OFFSET 19
#define SCR_RXFIFO_FSEL_MASK (0x3 << SCR_RXFIFO_FSEL_OFFSET)
#define SCR_RXFIFO_FSEL_IF0 (0x0 << SCR_RXFIFO_FSEL_OFFSET)
#define SCR_RXFIFO_FSEL_IF4 (0x1 << SCR_RXFIFO_FSEL_OFFSET)
#define SCR_RXFIFO_FSEL_IF8 (0x2 << SCR_RXFIFO_FSEL_OFFSET)
#define SCR_RXFIFO_FSEL_IF12 (0x3 << SCR_RXFIFO_FSEL_OFFSET)
#define SCR_RXFIFO_AUTOSYNC_OFFSET 18
#define SCR_RXFIFO_AUTOSYNC_MASK (1 << SCR_RXFIFO_AUTOSYNC_OFFSET)
#define SCR_RXFIFO_AUTOSYNC (1 << SCR_RXFIFO_AUTOSYNC_OFFSET)
#define SCR_TXFIFO_AUTOSYNC_OFFSET 17
#define SCR_TXFIFO_AUTOSYNC_MASK (1 << SCR_TXFIFO_AUTOSYNC_OFFSET)
#define SCR_TXFIFO_AUTOSYNC (1 << SCR_TXFIFO_AUTOSYNC_OFFSET)
#define SCR_TXFIFO_FSEL_OFFSET 15
#define SCR_TXFIFO_FSEL_MASK (0x3 << SCR_TXFIFO_FSEL_OFFSET)
#define SCR_TXFIFO_FSEL_IF0 (0x0 << SCR_TXFIFO_FSEL_OFFSET)
#define SCR_TXFIFO_FSEL_IF4 (0x1 << SCR_TXFIFO_FSEL_OFFSET)
#define SCR_TXFIFO_FSEL_IF8 (0x2 << SCR_TXFIFO_FSEL_OFFSET)
#define SCR_TXFIFO_FSEL_IF12 (0x3 << SCR_TXFIFO_FSEL_OFFSET)
#define SCR_LOW_POWER (1 << 13)
#define SCR_SOFT_RESET (1 << 12)
#define SCR_TXFIFO_CTRL_OFFSET 10
#define SCR_TXFIFO_CTRL_MASK (0x3 << SCR_TXFIFO_CTRL_OFFSET)
#define SCR_TXFIFO_CTRL_ZERO (0x0 << SCR_TXFIFO_CTRL_OFFSET)
#define SCR_TXFIFO_CTRL_NORMAL (0x1 << SCR_TXFIFO_CTRL_OFFSET)
#define SCR_TXFIFO_CTRL_ONESAMPLE (0x2 << SCR_TXFIFO_CTRL_OFFSET)
#define SCR_DMA_RX_EN_OFFSET 9
#define SCR_DMA_RX_EN_MASK (1 << SCR_DMA_RX_EN_OFFSET)
#define SCR_DMA_RX_EN (1 << SCR_DMA_RX_EN_OFFSET)
#define SCR_DMA_TX_EN_OFFSET 8
#define SCR_DMA_TX_EN_MASK (1 << SCR_DMA_TX_EN_OFFSET)
#define SCR_DMA_TX_EN (1 << SCR_DMA_TX_EN_OFFSET)
#define SCR_VAL_OFFSET 5
#define SCR_VAL_MASK (1 << SCR_VAL_OFFSET)
#define SCR_VAL_CLEAR (1 << SCR_VAL_OFFSET)
#define SCR_TXSEL_OFFSET 2
#define SCR_TXSEL_MASK (0x7 << SCR_TXSEL_OFFSET)
#define SCR_TXSEL_OFF (0 << SCR_TXSEL_OFFSET)
#define SCR_TXSEL_RX (1 << SCR_TXSEL_OFFSET)
#define SCR_TXSEL_NORMAL (0x5 << SCR_TXSEL_OFFSET)
#define SCR_USRC_SEL_OFFSET 0x0
#define SCR_USRC_SEL_MASK (0x3 << SCR_USRC_SEL_OFFSET)
#define SCR_USRC_SEL_NONE (0x0 << SCR_USRC_SEL_OFFSET)
#define SCR_USRC_SEL_RECV (0x1 << SCR_USRC_SEL_OFFSET)
#define SCR_USRC_SEL_CHIP (0x3 << SCR_USRC_SEL_OFFSET)
#define SCR_DMA_xX_EN(tx) (tx ? SCR_DMA_TX_EN : SCR_DMA_RX_EN)
/* SPDIF CDText control */
#define SRCD_CD_USER_OFFSET 1
#define SRCD_CD_USER (1 << SRCD_CD_USER_OFFSET)
/* SPDIF Phase Configuration register */
#define SRPC_DPLL_LOCKED (1 << 6)
#define SRPC_CLKSRC_SEL_OFFSET 7
#define SRPC_CLKSRC_SEL_MASK (0xf << SRPC_CLKSRC_SEL_OFFSET)
#define SRPC_CLKSRC_SEL_SET(x) ((x << SRPC_CLKSRC_SEL_OFFSET) & SRPC_CLKSRC_SEL_MASK)
#define SRPC_CLKSRC_SEL_LOCKED_OFFSET1 5
#define SRPC_CLKSRC_SEL_LOCKED_OFFSET2 2
#define SRPC_GAINSEL_OFFSET 3
#define SRPC_GAINSEL_MASK (0x7 << SRPC_GAINSEL_OFFSET)
#define SRPC_GAINSEL_SET(x) ((x << SRPC_GAINSEL_OFFSET) & SRPC_GAINSEL_MASK)
#define SRPC_CLKSRC_MAX 16
enum spdif_gainsel {
GAINSEL_MULTI_24 = 0,
GAINSEL_MULTI_16,
GAINSEL_MULTI_12,
GAINSEL_MULTI_8,
GAINSEL_MULTI_6,
GAINSEL_MULTI_4,
GAINSEL_MULTI_3,
};
#define GAINSEL_MULTI_MAX (GAINSEL_MULTI_3 + 1)
#define SPDIF_DEFAULT_GAINSEL GAINSEL_MULTI_8
/* SPDIF interrupt mask define */
#define INT_DPLL_LOCKED (1 << 20)
#define INT_TXFIFO_UNOV (1 << 19)
#define INT_TXFIFO_RESYNC (1 << 18)
#define INT_CNEW (1 << 17)
#define INT_VAL_NOGOOD (1 << 16)
#define INT_SYM_ERR (1 << 15)
#define INT_BIT_ERR (1 << 14)
#define INT_URX_FUL (1 << 10)
#define INT_URX_OV (1 << 9)
#define INT_QRX_FUL (1 << 8)
#define INT_QRX_OV (1 << 7)
#define INT_UQ_SYNC (1 << 6)
#define INT_UQ_ERR (1 << 5)
#define INT_RXFIFO_UNOV (1 << 4)
#define INT_RXFIFO_RESYNC (1 << 3)
#define INT_LOSS_LOCK (1 << 2)
#define INT_TX_EM (1 << 1)
#define INT_RXFIFO_FUL (1 << 0)
/* SPDIF Clock register */
#define STC_SYSCLK_DF_OFFSET 11
#define STC_SYSCLK_DF_MASK (0x1ff << STC_SYSCLK_DF_OFFSET)
#define STC_SYSCLK_DF(x) ((((x) - 1) << STC_SYSCLK_DF_OFFSET) & STC_SYSCLK_DF_MASK)
#define STC_TXCLK_SRC_OFFSET 8
#define STC_TXCLK_SRC_MASK (0x7 << STC_TXCLK_SRC_OFFSET)
#define STC_TXCLK_SRC_SET(x) ((x << STC_TXCLK_SRC_OFFSET) & STC_TXCLK_SRC_MASK)
#define STC_TXCLK_ALL_EN_OFFSET 7
#define STC_TXCLK_ALL_EN_MASK (1 << STC_TXCLK_ALL_EN_OFFSET)
#define STC_TXCLK_ALL_EN (1 << STC_TXCLK_ALL_EN_OFFSET)
#define STC_TXCLK_DF_OFFSET 0
#define STC_TXCLK_DF_MASK (0x7f << STC_TXCLK_DF_OFFSET)
#define STC_TXCLK_DF(x) ((((x) - 1) << STC_TXCLK_DF_OFFSET) & STC_TXCLK_DF_MASK)
#define STC_TXCLK_SRC_MAX 8
#define STC_TXCLK_SPDIF_ROOT 1
/* SPDIF tx rate */
enum spdif_txrate {
SPDIF_TXRATE_32000 = 0,
SPDIF_TXRATE_44100,
SPDIF_TXRATE_48000,
SPDIF_TXRATE_96000,
SPDIF_TXRATE_192000,
};
#define SPDIF_TXRATE_MAX (SPDIF_TXRATE_192000 + 1)
#define SPDIF_CSTATUS_BYTE 6
#define SPDIF_UBITS_SIZE 96
#define SPDIF_QSUB_SIZE (SPDIF_UBITS_SIZE / 8)
#define FSL_SPDIF_RATES_PLAYBACK (SNDRV_PCM_RATE_32000 | \
SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000 | \
SNDRV_PCM_RATE_96000 | \
SNDRV_PCM_RATE_192000)
#define FSL_SPDIF_RATES_CAPTURE (SNDRV_PCM_RATE_16000 | \
SNDRV_PCM_RATE_32000 | \
SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000 | \
SNDRV_PCM_RATE_64000 | \
SNDRV_PCM_RATE_96000)
#define FSL_SPDIF_FORMATS_PLAYBACK (SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S20_3LE | \
SNDRV_PCM_FMTBIT_S24_LE)
#define FSL_SPDIF_FORMATS_CAPTURE (SNDRV_PCM_FMTBIT_S24_LE)
#endif /* _FSL_SPDIF_DAI_H */
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