| /* 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 */ |
