1 /* 2 * HD-audio controller (Azalia) registers and helpers 3 * 4 * For traditional reasons, we still use azx_ prefix here 5 */ 6 7 #ifndef __SOUND_HDA_REGISTER_H 8 #define __SOUND_HDA_REGISTER_H 9 10 #include <linux/io.h> 11 #include <sound/hdaudio.h> 12 13 #define AZX_REG_GCAP 0x00 14 #define AZX_GCAP_64OK (1 << 0) /* 64bit address support */ 15 #define AZX_GCAP_NSDO (3 << 1) /* # of serial data out signals */ 16 #define AZX_GCAP_BSS (31 << 3) /* # of bidirectional streams */ 17 #define AZX_GCAP_ISS (15 << 8) /* # of input streams */ 18 #define AZX_GCAP_OSS (15 << 12) /* # of output streams */ 19 #define AZX_REG_VMIN 0x02 20 #define AZX_REG_VMAJ 0x03 21 #define AZX_REG_OUTPAY 0x04 22 #define AZX_REG_INPAY 0x06 23 #define AZX_REG_GCTL 0x08 24 #define AZX_GCTL_RESET (1 << 0) /* controller reset */ 25 #define AZX_GCTL_FCNTRL (1 << 1) /* flush control */ 26 #define AZX_GCTL_UNSOL (1 << 8) /* accept unsol. response enable */ 27 #define AZX_REG_WAKEEN 0x0c 28 #define AZX_REG_STATESTS 0x0e 29 #define AZX_REG_GSTS 0x10 30 #define AZX_GSTS_FSTS (1 << 1) /* flush status */ 31 #define AZX_REG_GCAP2 0x12 32 #define AZX_REG_LLCH 0x14 33 #define AZX_REG_OUTSTRMPAY 0x18 34 #define AZX_REG_INSTRMPAY 0x1A 35 #define AZX_REG_INTCTL 0x20 36 #define AZX_REG_INTSTS 0x24 37 #define AZX_REG_WALLCLK 0x30 /* 24Mhz source */ 38 #define AZX_REG_OLD_SSYNC 0x34 /* SSYNC for old ICH */ 39 #define AZX_REG_SSYNC 0x38 40 #define AZX_REG_CORBLBASE 0x40 41 #define AZX_REG_CORBUBASE 0x44 42 #define AZX_REG_CORBWP 0x48 43 #define AZX_REG_CORBRP 0x4a 44 #define AZX_CORBRP_RST (1 << 15) /* read pointer reset */ 45 #define AZX_REG_CORBCTL 0x4c 46 #define AZX_CORBCTL_RUN (1 << 1) /* enable DMA */ 47 #define AZX_CORBCTL_CMEIE (1 << 0) /* enable memory error irq */ 48 #define AZX_REG_CORBSTS 0x4d 49 #define AZX_CORBSTS_CMEI (1 << 0) /* memory error indication */ 50 #define AZX_REG_CORBSIZE 0x4e 51 52 #define AZX_REG_RIRBLBASE 0x50 53 #define AZX_REG_RIRBUBASE 0x54 54 #define AZX_REG_RIRBWP 0x58 55 #define AZX_RIRBWP_RST (1 << 15) /* write pointer reset */ 56 #define AZX_REG_RINTCNT 0x5a 57 #define AZX_REG_RIRBCTL 0x5c 58 #define AZX_RBCTL_IRQ_EN (1 << 0) /* enable IRQ */ 59 #define AZX_RBCTL_DMA_EN (1 << 1) /* enable DMA */ 60 #define AZX_RBCTL_OVERRUN_EN (1 << 2) /* enable overrun irq */ 61 #define AZX_REG_RIRBSTS 0x5d 62 #define AZX_RBSTS_IRQ (1 << 0) /* response irq */ 63 #define AZX_RBSTS_OVERRUN (1 << 2) /* overrun irq */ 64 #define AZX_REG_RIRBSIZE 0x5e 65 66 #define AZX_REG_IC 0x60 67 #define AZX_REG_IR 0x64 68 #define AZX_REG_IRS 0x68 69 #define AZX_IRS_VALID (1<<1) 70 #define AZX_IRS_BUSY (1<<0) 71 72 #define AZX_REG_DPLBASE 0x70 73 #define AZX_REG_DPUBASE 0x74 74 #define AZX_DPLBASE_ENABLE 0x1 /* Enable position buffer */ 75 76 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */ 77 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 }; 78 79 /* stream register offsets from stream base */ 80 #define AZX_REG_SD_CTL 0x00 81 #define AZX_REG_SD_STS 0x03 82 #define AZX_REG_SD_LPIB 0x04 83 #define AZX_REG_SD_CBL 0x08 84 #define AZX_REG_SD_LVI 0x0c 85 #define AZX_REG_SD_FIFOW 0x0e 86 #define AZX_REG_SD_FIFOSIZE 0x10 87 #define AZX_REG_SD_FORMAT 0x12 88 #define AZX_REG_SD_FIFOL 0x14 89 #define AZX_REG_SD_BDLPL 0x18 90 #define AZX_REG_SD_BDLPU 0x1c 91 92 /* Haswell/Broadwell display HD-A controller Extended Mode registers */ 93 #define AZX_REG_HSW_EM4 0x100c 94 #define AZX_REG_HSW_EM5 0x1010 95 96 /* Skylake/Broxton display HD-A controller Extended Mode registers */ 97 #define AZX_REG_SKL_EM4L 0x1040 98 99 /* PCI space */ 100 #define AZX_PCIREG_TCSEL 0x44 101 102 /* 103 * other constants 104 */ 105 106 /* max number of fragments - we may use more if allocating more pages for BDL */ 107 #define BDL_SIZE 4096 108 #define AZX_MAX_BDL_ENTRIES (BDL_SIZE / 16) 109 #define AZX_MAX_FRAG 32 110 /* max buffer size - no h/w limit, you can increase as you like */ 111 #define AZX_MAX_BUF_SIZE (1024*1024*1024) 112 113 /* RIRB int mask: overrun[2], response[0] */ 114 #define RIRB_INT_RESPONSE 0x01 115 #define RIRB_INT_OVERRUN 0x04 116 #define RIRB_INT_MASK 0x05 117 118 /* STATESTS int mask: S3,SD2,SD1,SD0 */ 119 #define STATESTS_INT_MASK ((1 << HDA_MAX_CODECS) - 1) 120 121 /* SD_CTL bits */ 122 #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */ 123 #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */ 124 #define SD_CTL_STRIPE (3 << 16) /* stripe control */ 125 #define SD_CTL_TRAFFIC_PRIO (1 << 18) /* traffic priority */ 126 #define SD_CTL_DIR (1 << 19) /* bi-directional stream */ 127 #define SD_CTL_STREAM_TAG_MASK (0xf << 20) 128 #define SD_CTL_STREAM_TAG_SHIFT 20 129 130 /* SD_CTL and SD_STS */ 131 #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */ 132 #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */ 133 #define SD_INT_COMPLETE 0x04 /* completion interrupt */ 134 #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\ 135 SD_INT_COMPLETE) 136 137 /* SD_STS */ 138 #define SD_STS_FIFO_READY 0x20 /* FIFO ready */ 139 140 /* INTCTL and INTSTS */ 141 #define AZX_INT_ALL_STREAM 0xff /* all stream interrupts */ 142 #define AZX_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */ 143 #define AZX_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */ 144 145 /* below are so far hardcoded - should read registers in future */ 146 #define AZX_MAX_CORB_ENTRIES 256 147 #define AZX_MAX_RIRB_ENTRIES 256 148 149 /* Capability header Structure */ 150 #define AZX_REG_CAP_HDR 0x0 151 #define AZX_CAP_HDR_VER_OFF 28 152 #define AZX_CAP_HDR_VER_MASK (0xF << AZX_CAP_HDR_VER_OFF) 153 #define AZX_CAP_HDR_ID_OFF 16 154 #define AZX_CAP_HDR_ID_MASK (0xFFF << AZX_CAP_HDR_ID_OFF) 155 #define AZX_CAP_HDR_NXT_PTR_MASK 0xFFFF 156 157 /* registers of Software Position Based FIFO Capability Structure */ 158 #define AZX_SPB_CAP_ID 0x4 159 #define AZX_REG_SPB_BASE_ADDR 0x700 160 #define AZX_REG_SPB_SPBFCH 0x00 161 #define AZX_REG_SPB_SPBFCCTL 0x04 162 /* Base used to calculate the iterating register offset */ 163 #define AZX_SPB_BASE 0x08 164 /* Interval used to calculate the iterating register offset */ 165 #define AZX_SPB_INTERVAL 0x08 166 /* SPIB base */ 167 #define AZX_SPB_SPIB 0x00 168 /* SPIB MAXFIFO base*/ 169 #define AZX_SPB_MAXFIFO 0x04 170 171 /* registers of Global Time Synchronization Capability Structure */ 172 #define AZX_GTS_CAP_ID 0x1 173 #define AZX_REG_GTS_GTSCH 0x00 174 #define AZX_REG_GTS_GTSCD 0x04 175 #define AZX_REG_GTS_GTSCTLAC 0x0C 176 #define AZX_GTS_BASE 0x20 177 #define AZX_GTS_INTERVAL 0x20 178 179 /* registers for Processing Pipe Capability Structure */ 180 #define AZX_PP_CAP_ID 0x3 181 #define AZX_REG_PP_PPCH 0x10 182 #define AZX_REG_PP_PPCTL 0x04 183 #define AZX_PPCTL_PIE (1<<31) 184 #define AZX_PPCTL_GPROCEN (1<<30) 185 /* _X_ = dma engine # and cannot * exceed 29 (per spec max 30 dma engines) */ 186 #define AZX_PPCTL_PROCEN(_X_) (1<<(_X_)) 187 188 #define AZX_REG_PP_PPSTS 0x08 189 190 #define AZX_PPHC_BASE 0x10 191 #define AZX_PPHC_INTERVAL 0x10 192 193 #define AZX_REG_PPHCLLPL 0x0 194 #define AZX_REG_PPHCLLPU 0x4 195 #define AZX_REG_PPHCLDPL 0x8 196 #define AZX_REG_PPHCLDPU 0xC 197 198 #define AZX_PPLC_BASE 0x10 199 #define AZX_PPLC_MULTI 0x10 200 #define AZX_PPLC_INTERVAL 0x10 201 202 #define AZX_REG_PPLCCTL 0x0 203 #define AZX_PPLCCTL_STRM_BITS 4 204 #define AZX_PPLCCTL_STRM_SHIFT 20 205 #define AZX_REG_MASK(bit_num, offset) \ 206 (((1 << (bit_num)) - 1) << (offset)) 207 #define AZX_PPLCCTL_STRM_MASK \ 208 AZX_REG_MASK(AZX_PPLCCTL_STRM_BITS, AZX_PPLCCTL_STRM_SHIFT) 209 #define AZX_PPLCCTL_RUN (1<<1) 210 #define AZX_PPLCCTL_STRST (1<<0) 211 212 #define AZX_REG_PPLCFMT 0x4 213 #define AZX_REG_PPLCLLPL 0x8 214 #define AZX_REG_PPLCLLPU 0xC 215 216 /* registers for Multiple Links Capability Structure */ 217 #define AZX_ML_CAP_ID 0x2 218 #define AZX_REG_ML_MLCH 0x00 219 #define AZX_REG_ML_MLCD 0x04 220 #define AZX_ML_BASE 0x40 221 #define AZX_ML_INTERVAL 0x40 222 223 #define AZX_REG_ML_LCAP 0x00 224 #define AZX_REG_ML_LCTL 0x04 225 #define AZX_REG_ML_LOSIDV 0x08 226 #define AZX_REG_ML_LSDIID 0x0C 227 #define AZX_REG_ML_LPSOO 0x10 228 #define AZX_REG_ML_LPSIO 0x12 229 #define AZX_REG_ML_LWALFC 0x18 230 #define AZX_REG_ML_LOUTPAY 0x20 231 #define AZX_REG_ML_LINPAY 0x30 232 233 #define AZX_MLCTL_SPA (1<<16) 234 #define AZX_MLCTL_CPA 23 235 236 237 /* registers for DMA Resume Capability Structure */ 238 #define AZX_DRSM_CAP_ID 0x5 239 #define AZX_REG_DRSM_CTL 0x4 240 /* Base used to calculate the iterating register offset */ 241 #define AZX_DRSM_BASE 0x08 242 /* Interval used to calculate the iterating register offset */ 243 #define AZX_DRSM_INTERVAL 0x08 244 245 /* 246 * helpers to read the stream position 247 */ 248 static inline unsigned int 249 snd_hdac_stream_get_pos_lpib(struct hdac_stream *stream) 250 { 251 return snd_hdac_stream_readl(stream, SD_LPIB); 252 } 253 254 static inline unsigned int 255 snd_hdac_stream_get_pos_posbuf(struct hdac_stream *stream) 256 { 257 return le32_to_cpu(*stream->posbuf); 258 } 259 260 #endif /* __SOUND_HDA_REGISTER_H */ 261