Russell King | cb5a6ff | 2005-05-12 14:04:59 +0200 | [diff] [blame] | 1 | /* |
| 2 | * linux/sound/arm/aaci.c - ARM PrimeCell AACI PL041 driver |
| 3 | * |
| 4 | * Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | #ifndef AACI_H |
| 11 | #define AACI_H |
| 12 | |
| 13 | /* |
| 14 | * Control and status register offsets |
| 15 | * P39. |
| 16 | */ |
| 17 | #define AACI_CSCH1 0x000 |
| 18 | #define AACI_CSCH2 0x014 |
| 19 | #define AACI_CSCH3 0x028 |
| 20 | #define AACI_CSCH4 0x03c |
| 21 | |
| 22 | #define AACI_RXCR 0x000 /* 29 bits Control Rx FIFO */ |
| 23 | #define AACI_TXCR 0x004 /* 17 bits Control Tx FIFO */ |
| 24 | #define AACI_SR 0x008 /* 12 bits Status */ |
| 25 | #define AACI_ISR 0x00c /* 7 bits Int Status */ |
| 26 | #define AACI_IE 0x010 /* 7 bits Int Enable */ |
| 27 | |
| 28 | /* |
| 29 | * Other registers |
| 30 | */ |
| 31 | #define AACI_SL1RX 0x050 |
| 32 | #define AACI_SL1TX 0x054 |
| 33 | #define AACI_SL2RX 0x058 |
| 34 | #define AACI_SL2TX 0x05c |
| 35 | #define AACI_SL12RX 0x060 |
| 36 | #define AACI_SL12TX 0x064 |
| 37 | #define AACI_SLFR 0x068 /* slot flags */ |
| 38 | #define AACI_SLISTAT 0x06c /* slot interrupt status */ |
| 39 | #define AACI_SLIEN 0x070 /* slot interrupt enable */ |
| 40 | #define AACI_INTCLR 0x074 /* interrupt clear */ |
| 41 | #define AACI_MAINCR 0x078 /* main control */ |
| 42 | #define AACI_RESET 0x07c /* reset control */ |
| 43 | #define AACI_SYNC 0x080 /* sync control */ |
| 44 | #define AACI_ALLINTS 0x084 /* all fifo interrupt status */ |
| 45 | #define AACI_MAINFR 0x088 /* main flag register */ |
| 46 | #define AACI_DR1 0x090 /* data read/written fifo 1 */ |
| 47 | #define AACI_DR2 0x0b0 /* data read/written fifo 2 */ |
| 48 | #define AACI_DR3 0x0d0 /* data read/written fifo 3 */ |
| 49 | #define AACI_DR4 0x0f0 /* data read/written fifo 4 */ |
| 50 | |
| 51 | /* |
| 52 | * transmit fifo control register. P48 |
| 53 | */ |
| 54 | #define TXCR_FEN (1 << 16) /* fifo enable */ |
| 55 | #define TXCR_COMPACT (1 << 15) /* compact mode */ |
| 56 | #define TXCR_TSZ16 (0 << 13) /* 16 bits */ |
| 57 | #define TXCR_TSZ18 (1 << 13) /* 18 bits */ |
| 58 | #define TXCR_TSZ20 (2 << 13) /* 20 bits */ |
| 59 | #define TXCR_TSZ12 (3 << 13) /* 12 bits */ |
| 60 | #define TXCR_TX12 (1 << 12) /* transmits slot 12 */ |
| 61 | #define TXCR_TX11 (1 << 11) /* transmits slot 12 */ |
| 62 | #define TXCR_TX10 (1 << 10) /* transmits slot 12 */ |
| 63 | #define TXCR_TX9 (1 << 9) /* transmits slot 12 */ |
| 64 | #define TXCR_TX8 (1 << 8) /* transmits slot 12 */ |
| 65 | #define TXCR_TX7 (1 << 7) /* transmits slot 12 */ |
| 66 | #define TXCR_TX6 (1 << 6) /* transmits slot 12 */ |
| 67 | #define TXCR_TX5 (1 << 5) /* transmits slot 12 */ |
| 68 | #define TXCR_TX4 (1 << 4) /* transmits slot 12 */ |
| 69 | #define TXCR_TX3 (1 << 3) /* transmits slot 12 */ |
| 70 | #define TXCR_TX2 (1 << 2) /* transmits slot 12 */ |
| 71 | #define TXCR_TX1 (1 << 1) /* transmits slot 12 */ |
| 72 | #define TXCR_TXEN (1 << 0) /* transmit enable */ |
| 73 | |
| 74 | /* |
| 75 | * status register bits. P49 |
| 76 | */ |
| 77 | #define SR_RXTOFE (1 << 11) /* rx timeout fifo empty */ |
| 78 | #define SR_TXTO (1 << 10) /* rx timeout fifo nonempty */ |
| 79 | #define SR_TXU (1 << 9) /* tx underrun */ |
| 80 | #define SR_RXO (1 << 8) /* rx overrun */ |
| 81 | #define SR_TXB (1 << 7) /* tx busy */ |
| 82 | #define SR_RXB (1 << 6) /* rx busy */ |
| 83 | #define SR_TXFF (1 << 5) /* tx fifo full */ |
| 84 | #define SR_RXFF (1 << 4) /* rx fifo full */ |
| 85 | #define SR_TXHE (1 << 3) /* tx fifo half empty */ |
| 86 | #define SR_RXHF (1 << 2) /* rx fifo half full */ |
| 87 | #define SR_TXFE (1 << 1) /* tx fifo empty */ |
| 88 | #define SR_RXFE (1 << 0) /* rx fifo empty */ |
| 89 | |
| 90 | /* |
| 91 | * interrupt status register bits. |
| 92 | */ |
| 93 | #define ISR_RXTOFEINTR (1 << 6) /* rx fifo empty */ |
| 94 | #define ISR_URINTR (1 << 5) /* tx underflow */ |
| 95 | #define ISR_ORINTR (1 << 4) /* rx overflow */ |
| 96 | #define ISR_RXINTR (1 << 3) /* rx fifo */ |
| 97 | #define ISR_TXINTR (1 << 2) /* tx fifo intr */ |
| 98 | #define ISR_RXTOINTR (1 << 1) /* tx timeout */ |
| 99 | #define ISR_TXCINTR (1 << 0) /* tx complete */ |
| 100 | |
| 101 | /* |
| 102 | * interrupt enable register bits. |
| 103 | */ |
| 104 | #define IE_RXTOIE (1 << 6) |
| 105 | #define IE_URIE (1 << 5) |
| 106 | #define IE_ORIE (1 << 4) |
| 107 | #define IE_RXIE (1 << 3) |
| 108 | #define IE_TXIE (1 << 2) |
| 109 | #define IE_RXTIE (1 << 1) |
| 110 | #define IE_TXCIE (1 << 0) |
| 111 | |
| 112 | /* |
| 113 | * interrupt status. P51 |
| 114 | */ |
| 115 | #define ISR_RXTOFE (1 << 6) /* rx timeout fifo empty */ |
| 116 | #define ISR_UR (1 << 5) /* tx fifo underrun */ |
| 117 | #define ISR_OR (1 << 4) /* rx fifo overrun */ |
| 118 | #define ISR_RX (1 << 3) /* rx interrupt status */ |
| 119 | #define ISR_TX (1 << 2) /* tx interrupt status */ |
| 120 | #define ISR_RXTO (1 << 1) /* rx timeout */ |
| 121 | #define ISR_TXC (1 << 0) /* tx complete */ |
| 122 | |
| 123 | /* |
| 124 | * interrupt enable. P52 |
| 125 | */ |
| 126 | #define IE_RXTOFE (1 << 6) /* rx timeout fifo empty */ |
| 127 | #define IE_UR (1 << 5) /* tx fifo underrun */ |
| 128 | #define IE_OR (1 << 4) /* rx fifo overrun */ |
| 129 | #define IE_RX (1 << 3) /* rx interrupt status */ |
| 130 | #define IE_TX (1 << 2) /* tx interrupt status */ |
| 131 | #define IE_RXTO (1 << 1) /* rx timeout */ |
| 132 | #define IE_TXC (1 << 0) /* tx complete */ |
| 133 | |
| 134 | /* |
| 135 | * slot flag register bits. P56 |
| 136 | */ |
| 137 | #define SLFR_RWIS (1 << 13) /* raw wake-up interrupt status */ |
| 138 | #define SLFR_RGPIOINTR (1 << 12) /* raw gpio interrupt */ |
| 139 | #define SLFR_12TXE (1 << 11) /* slot 12 tx empty */ |
| 140 | #define SLFR_12RXV (1 << 10) /* slot 12 rx valid */ |
| 141 | #define SLFR_2TXE (1 << 9) /* slot 2 tx empty */ |
| 142 | #define SLFR_2RXV (1 << 8) /* slot 2 rx valid */ |
| 143 | #define SLFR_1TXE (1 << 7) /* slot 1 tx empty */ |
| 144 | #define SLFR_1RXV (1 << 6) /* slot 1 rx valid */ |
| 145 | #define SLFR_12TXB (1 << 5) /* slot 12 tx busy */ |
| 146 | #define SLFR_12RXB (1 << 4) /* slot 12 rx busy */ |
| 147 | #define SLFR_2TXB (1 << 3) /* slot 2 tx busy */ |
| 148 | #define SLFR_2RXB (1 << 2) /* slot 2 rx busy */ |
| 149 | #define SLFR_1TXB (1 << 1) /* slot 1 tx busy */ |
| 150 | #define SLFR_1RXB (1 << 0) /* slot 1 rx busy */ |
| 151 | |
| 152 | /* |
| 153 | * Interrupt clear register. |
| 154 | */ |
| 155 | #define ICLR_RXTOFEC4 (1 << 12) |
| 156 | #define ICLR_RXTOFEC3 (1 << 11) |
| 157 | #define ICLR_RXTOFEC2 (1 << 10) |
| 158 | #define ICLR_RXTOFEC1 (1 << 9) |
| 159 | #define ICLR_TXUEC4 (1 << 8) |
| 160 | #define ICLR_TXUEC3 (1 << 7) |
| 161 | #define ICLR_TXUEC2 (1 << 6) |
| 162 | #define ICLR_TXUEC1 (1 << 5) |
| 163 | #define ICLR_RXOEC4 (1 << 4) |
| 164 | #define ICLR_RXOEC3 (1 << 3) |
| 165 | #define ICLR_RXOEC2 (1 << 2) |
| 166 | #define ICLR_RXOEC1 (1 << 1) |
| 167 | #define ICLR_WISC (1 << 0) |
| 168 | |
| 169 | /* |
| 170 | * Main control register bits. P62 |
| 171 | */ |
| 172 | #define MAINCR_SCRA(x) ((x) << 10) /* secondary codec reg access */ |
| 173 | #define MAINCR_DMAEN (1 << 9) /* dma enable */ |
| 174 | #define MAINCR_SL12TXEN (1 << 8) /* slot 12 transmit enable */ |
| 175 | #define MAINCR_SL12RXEN (1 << 7) /* slot 12 receive enable */ |
| 176 | #define MAINCR_SL2TXEN (1 << 6) /* slot 2 transmit enable */ |
| 177 | #define MAINCR_SL2RXEN (1 << 5) /* slot 2 receive enable */ |
| 178 | #define MAINCR_SL1TXEN (1 << 4) /* slot 1 transmit enable */ |
| 179 | #define MAINCR_SL1RXEN (1 << 3) /* slot 1 receive enable */ |
| 180 | #define MAINCR_LPM (1 << 2) /* low power mode */ |
| 181 | #define MAINCR_LOOPBK (1 << 1) /* loopback */ |
| 182 | #define MAINCR_IE (1 << 0) /* aaci interface enable */ |
| 183 | |
| 184 | /* |
| 185 | * Reset register bits. P65 |
| 186 | */ |
| 187 | #define RESET_NRST (1 << 0) |
| 188 | |
| 189 | /* |
| 190 | * Sync register bits. P65 |
| 191 | */ |
| 192 | #define SYNC_FORCE (1 << 0) |
| 193 | |
| 194 | /* |
| 195 | * Main flag register bits. P66 |
| 196 | */ |
| 197 | #define MAINFR_TXB (1 << 1) /* transmit busy */ |
| 198 | #define MAINFR_RXB (1 << 0) /* receive busy */ |
| 199 | |
| 200 | |
| 201 | |
| 202 | struct aaci_runtime { |
| 203 | void *base; |
| 204 | void *fifo; |
| 205 | |
| 206 | struct ac97_pcm *pcm; |
| 207 | int pcm_open; |
| 208 | |
| 209 | u32 cr; |
| 210 | snd_pcm_substream_t *substream; |
| 211 | |
| 212 | /* |
| 213 | * PIO support |
| 214 | */ |
| 215 | void *start; |
| 216 | void *end; |
| 217 | void *ptr; |
| 218 | int bytes; |
| 219 | unsigned int period; |
| 220 | unsigned int fifosz; |
| 221 | }; |
| 222 | |
| 223 | struct aaci { |
| 224 | struct amba_device *dev; |
| 225 | snd_card_t *card; |
| 226 | void *base; |
| 227 | unsigned int fifosize; |
| 228 | |
| 229 | /* AC'97 */ |
| 230 | struct semaphore ac97_sem; |
| 231 | ac97_bus_t *ac97_bus; |
| 232 | |
| 233 | u32 maincr; |
| 234 | spinlock_t lock; |
| 235 | |
| 236 | struct aaci_runtime playback; |
| 237 | struct aaci_runtime capture; |
| 238 | |
| 239 | snd_pcm_t *pcm; |
| 240 | }; |
| 241 | |
| 242 | #define ACSTREAM_FRONT 0 |
| 243 | #define ACSTREAM_SURROUND 1 |
| 244 | #define ACSTREAM_LFE 2 |
| 245 | |
| 246 | #endif |