1 /* 2 * fsl_spdif.h - ALSA S/PDIF interface for the Freescale i.MX SoC 3 * 4 * Copyright (C) 2013 Freescale Semiconductor, Inc. 5 * 6 * Author: Nicolin Chen <b42378@freescale.com> 7 * 8 * Based on fsl_ssi.h 9 * Author: Timur Tabi <timur@freescale.com> 10 * Copyright 2007-2008 Freescale Semiconductor, Inc. 11 * 12 * This file is licensed under the terms of the GNU General Public License 13 * version 2. This program is licensed "as is" without any warranty of any 14 * kind, whether express or implied. 15 */ 16 17 #ifndef _FSL_SPDIF_DAI_H 18 #define _FSL_SPDIF_DAI_H 19 20 /* S/PDIF Register Map */ 21 #define REG_SPDIF_SCR 0x0 /* SPDIF Configuration Register */ 22 #define REG_SPDIF_SRCD 0x4 /* CDText Control Register */ 23 #define REG_SPDIF_SRPC 0x8 /* PhaseConfig Register */ 24 #define REG_SPDIF_SIE 0xc /* InterruptEn Register */ 25 #define REG_SPDIF_SIS 0x10 /* InterruptStat Register */ 26 #define REG_SPDIF_SIC 0x10 /* InterruptClear Register */ 27 #define REG_SPDIF_SRL 0x14 /* SPDIFRxLeft Register */ 28 #define REG_SPDIF_SRR 0x18 /* SPDIFRxRight Register */ 29 #define REG_SPDIF_SRCSH 0x1c /* SPDIFRxCChannel_h Register */ 30 #define REG_SPDIF_SRCSL 0x20 /* SPDIFRxCChannel_l Register */ 31 #define REG_SPDIF_SRU 0x24 /* UchannelRx Register */ 32 #define REG_SPDIF_SRQ 0x28 /* QchannelRx Register */ 33 #define REG_SPDIF_STL 0x2C /* SPDIFTxLeft Register */ 34 #define REG_SPDIF_STR 0x30 /* SPDIFTxRight Register */ 35 #define REG_SPDIF_STCSCH 0x34 /* SPDIFTxCChannelCons_h Register */ 36 #define REG_SPDIF_STCSCL 0x38 /* SPDIFTxCChannelCons_l Register */ 37 #define REG_SPDIF_SRFM 0x44 /* FreqMeas Register */ 38 #define REG_SPDIF_STC 0x50 /* SPDIFTxClk Register */ 39 40 41 /* SPDIF Configuration register */ 42 #define SCR_RXFIFO_CTL_OFFSET 23 43 #define SCR_RXFIFO_CTL_MASK (1 << SCR_RXFIFO_CTL_OFFSET) 44 #define SCR_RXFIFO_CTL_ZERO (1 << SCR_RXFIFO_CTL_OFFSET) 45 #define SCR_RXFIFO_OFF_OFFSET 22 46 #define SCR_RXFIFO_OFF_MASK (1 << SCR_RXFIFO_OFF_OFFSET) 47 #define SCR_RXFIFO_OFF (1 << SCR_RXFIFO_OFF_OFFSET) 48 #define SCR_RXFIFO_RST_OFFSET 21 49 #define SCR_RXFIFO_RST_MASK (1 << SCR_RXFIFO_RST_OFFSET) 50 #define SCR_RXFIFO_RST (1 << SCR_RXFIFO_RST_OFFSET) 51 #define SCR_RXFIFO_FSEL_OFFSET 19 52 #define SCR_RXFIFO_FSEL_MASK (0x3 << SCR_RXFIFO_FSEL_OFFSET) 53 #define SCR_RXFIFO_FSEL_IF0 (0x0 << SCR_RXFIFO_FSEL_OFFSET) 54 #define SCR_RXFIFO_FSEL_IF4 (0x1 << SCR_RXFIFO_FSEL_OFFSET) 55 #define SCR_RXFIFO_FSEL_IF8 (0x2 << SCR_RXFIFO_FSEL_OFFSET) 56 #define SCR_RXFIFO_FSEL_IF12 (0x3 << SCR_RXFIFO_FSEL_OFFSET) 57 #define SCR_RXFIFO_AUTOSYNC_OFFSET 18 58 #define SCR_RXFIFO_AUTOSYNC_MASK (1 << SCR_RXFIFO_AUTOSYNC_OFFSET) 59 #define SCR_RXFIFO_AUTOSYNC (1 << SCR_RXFIFO_AUTOSYNC_OFFSET) 60 #define SCR_TXFIFO_AUTOSYNC_OFFSET 17 61 #define SCR_TXFIFO_AUTOSYNC_MASK (1 << SCR_TXFIFO_AUTOSYNC_OFFSET) 62 #define SCR_TXFIFO_AUTOSYNC (1 << SCR_TXFIFO_AUTOSYNC_OFFSET) 63 #define SCR_TXFIFO_FSEL_OFFSET 15 64 #define SCR_TXFIFO_FSEL_MASK (0x3 << SCR_TXFIFO_FSEL_OFFSET) 65 #define SCR_TXFIFO_FSEL_IF0 (0x0 << SCR_TXFIFO_FSEL_OFFSET) 66 #define SCR_TXFIFO_FSEL_IF4 (0x1 << SCR_TXFIFO_FSEL_OFFSET) 67 #define SCR_TXFIFO_FSEL_IF8 (0x2 << SCR_TXFIFO_FSEL_OFFSET) 68 #define SCR_TXFIFO_FSEL_IF12 (0x3 << SCR_TXFIFO_FSEL_OFFSET) 69 #define SCR_LOW_POWER (1 << 13) 70 #define SCR_SOFT_RESET (1 << 12) 71 #define SCR_TXFIFO_CTRL_OFFSET 10 72 #define SCR_TXFIFO_CTRL_MASK (0x3 << SCR_TXFIFO_CTRL_OFFSET) 73 #define SCR_TXFIFO_CTRL_ZERO (0x0 << SCR_TXFIFO_CTRL_OFFSET) 74 #define SCR_TXFIFO_CTRL_NORMAL (0x1 << SCR_TXFIFO_CTRL_OFFSET) 75 #define SCR_TXFIFO_CTRL_ONESAMPLE (0x2 << SCR_TXFIFO_CTRL_OFFSET) 76 #define SCR_DMA_RX_EN_OFFSET 9 77 #define SCR_DMA_RX_EN_MASK (1 << SCR_DMA_RX_EN_OFFSET) 78 #define SCR_DMA_RX_EN (1 << SCR_DMA_RX_EN_OFFSET) 79 #define SCR_DMA_TX_EN_OFFSET 8 80 #define SCR_DMA_TX_EN_MASK (1 << SCR_DMA_TX_EN_OFFSET) 81 #define SCR_DMA_TX_EN (1 << SCR_DMA_TX_EN_OFFSET) 82 #define SCR_VAL_OFFSET 5 83 #define SCR_VAL_MASK (1 << SCR_VAL_OFFSET) 84 #define SCR_VAL_CLEAR (1 << SCR_VAL_OFFSET) 85 #define SCR_TXSEL_OFFSET 2 86 #define SCR_TXSEL_MASK (0x7 << SCR_TXSEL_OFFSET) 87 #define SCR_TXSEL_OFF (0 << SCR_TXSEL_OFFSET) 88 #define SCR_TXSEL_RX (1 << SCR_TXSEL_OFFSET) 89 #define SCR_TXSEL_NORMAL (0x5 << SCR_TXSEL_OFFSET) 90 #define SCR_USRC_SEL_OFFSET 0x0 91 #define SCR_USRC_SEL_MASK (0x3 << SCR_USRC_SEL_OFFSET) 92 #define SCR_USRC_SEL_NONE (0x0 << SCR_USRC_SEL_OFFSET) 93 #define SCR_USRC_SEL_RECV (0x1 << SCR_USRC_SEL_OFFSET) 94 #define SCR_USRC_SEL_CHIP (0x3 << SCR_USRC_SEL_OFFSET) 95 96 #define SCR_DMA_xX_EN(tx) (tx ? SCR_DMA_TX_EN : SCR_DMA_RX_EN) 97 98 /* SPDIF CDText control */ 99 #define SRCD_CD_USER_OFFSET 1 100 #define SRCD_CD_USER (1 << SRCD_CD_USER_OFFSET) 101 102 /* SPDIF Phase Configuration register */ 103 #define SRPC_DPLL_LOCKED (1 << 6) 104 #define SRPC_CLKSRC_SEL_OFFSET 7 105 #define SRPC_CLKSRC_SEL_MASK (0xf << SRPC_CLKSRC_SEL_OFFSET) 106 #define SRPC_CLKSRC_SEL_SET(x) ((x << SRPC_CLKSRC_SEL_OFFSET) & SRPC_CLKSRC_SEL_MASK) 107 #define SRPC_CLKSRC_SEL_LOCKED_OFFSET1 5 108 #define SRPC_CLKSRC_SEL_LOCKED_OFFSET2 2 109 #define SRPC_GAINSEL_OFFSET 3 110 #define SRPC_GAINSEL_MASK (0x7 << SRPC_GAINSEL_OFFSET) 111 #define SRPC_GAINSEL_SET(x) ((x << SRPC_GAINSEL_OFFSET) & SRPC_GAINSEL_MASK) 112 113 #define SRPC_CLKSRC_MAX 16 114 115 enum spdif_gainsel { 116 GAINSEL_MULTI_24 = 0, 117 GAINSEL_MULTI_16, 118 GAINSEL_MULTI_12, 119 GAINSEL_MULTI_8, 120 GAINSEL_MULTI_6, 121 GAINSEL_MULTI_4, 122 GAINSEL_MULTI_3, 123 }; 124 #define GAINSEL_MULTI_MAX (GAINSEL_MULTI_3 + 1) 125 #define SPDIF_DEFAULT_GAINSEL GAINSEL_MULTI_8 126 127 /* SPDIF interrupt mask define */ 128 #define INT_DPLL_LOCKED (1 << 20) 129 #define INT_TXFIFO_UNOV (1 << 19) 130 #define INT_TXFIFO_RESYNC (1 << 18) 131 #define INT_CNEW (1 << 17) 132 #define INT_VAL_NOGOOD (1 << 16) 133 #define INT_SYM_ERR (1 << 15) 134 #define INT_BIT_ERR (1 << 14) 135 #define INT_URX_FUL (1 << 10) 136 #define INT_URX_OV (1 << 9) 137 #define INT_QRX_FUL (1 << 8) 138 #define INT_QRX_OV (1 << 7) 139 #define INT_UQ_SYNC (1 << 6) 140 #define INT_UQ_ERR (1 << 5) 141 #define INT_RXFIFO_UNOV (1 << 4) 142 #define INT_RXFIFO_RESYNC (1 << 3) 143 #define INT_LOSS_LOCK (1 << 2) 144 #define INT_TX_EM (1 << 1) 145 #define INT_RXFIFO_FUL (1 << 0) 146 147 /* SPDIF Clock register */ 148 #define STC_SYSCLK_DF_OFFSET 11 149 #define STC_SYSCLK_DF_MASK (0x1ff << STC_SYSCLK_DF_OFFSET) 150 #define STC_SYSCLK_DF(x) ((((x) - 1) << STC_SYSCLK_DF_OFFSET) & STC_SYSCLK_DF_MASK) 151 #define STC_TXCLK_SRC_OFFSET 8 152 #define STC_TXCLK_SRC_MASK (0x7 << STC_TXCLK_SRC_OFFSET) 153 #define STC_TXCLK_SRC_SET(x) ((x << STC_TXCLK_SRC_OFFSET) & STC_TXCLK_SRC_MASK) 154 #define STC_TXCLK_ALL_EN_OFFSET 7 155 #define STC_TXCLK_ALL_EN_MASK (1 << STC_TXCLK_ALL_EN_OFFSET) 156 #define STC_TXCLK_ALL_EN (1 << STC_TXCLK_ALL_EN_OFFSET) 157 #define STC_TXCLK_DF_OFFSET 0 158 #define STC_TXCLK_DF_MASK (0x7ff << STC_TXCLK_DF_OFFSET) 159 #define STC_TXCLK_DF(x) ((((x) - 1) << STC_TXCLK_DF_OFFSET) & STC_TXCLK_DF_MASK) 160 #define STC_TXCLK_SRC_MAX 8 161 162 #define STC_TXCLK_SPDIF_ROOT 1 163 164 /* SPDIF tx rate */ 165 enum spdif_txrate { 166 SPDIF_TXRATE_32000 = 0, 167 SPDIF_TXRATE_44100, 168 SPDIF_TXRATE_48000, 169 SPDIF_TXRATE_96000, 170 SPDIF_TXRATE_192000, 171 }; 172 #define SPDIF_TXRATE_MAX (SPDIF_TXRATE_192000 + 1) 173 174 175 #define SPDIF_CSTATUS_BYTE 6 176 #define SPDIF_UBITS_SIZE 96 177 #define SPDIF_QSUB_SIZE (SPDIF_UBITS_SIZE / 8) 178 179 180 #define FSL_SPDIF_RATES_PLAYBACK (SNDRV_PCM_RATE_32000 | \ 181 SNDRV_PCM_RATE_44100 | \ 182 SNDRV_PCM_RATE_48000 | \ 183 SNDRV_PCM_RATE_96000 | \ 184 SNDRV_PCM_RATE_192000) 185 186 #define FSL_SPDIF_RATES_CAPTURE (SNDRV_PCM_RATE_16000 | \ 187 SNDRV_PCM_RATE_32000 | \ 188 SNDRV_PCM_RATE_44100 | \ 189 SNDRV_PCM_RATE_48000 | \ 190 SNDRV_PCM_RATE_64000 | \ 191 SNDRV_PCM_RATE_96000) 192 193 #define FSL_SPDIF_FORMATS_PLAYBACK (SNDRV_PCM_FMTBIT_S16_LE | \ 194 SNDRV_PCM_FMTBIT_S20_3LE | \ 195 SNDRV_PCM_FMTBIT_S24_LE) 196 197 #define FSL_SPDIF_FORMATS_CAPTURE (SNDRV_PCM_FMTBIT_S24_LE) 198 199 #endif /* _FSL_SPDIF_DAI_H */ 200