include/sound/hda_register.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * HD-audio controller (Azalia) registers and helpers
   4  *
   5  * For traditional reasons, we still use azx_ prefix here
   6  */
   7
   8 #ifndef __SOUND_HDA_REGISTER_H
   9 #define __SOUND_HDA_REGISTER_H
  10
  11 #include <linux/io.h>
  12 #include <sound/hdaudio.h>
  13
  14 #define AZX_REG_GCAP                    0x00
  15 #define   AZX_GCAP_64OK         (1 << 0)   /* 64bit address support */
  16 #define   AZX_GCAP_NSDO         (3 << 1)   /* # of serial data out signals */
  17 #define   AZX_GCAP_BSS          (31 << 3)  /* # of bidirectional streams */
  18 #define   AZX_GCAP_ISS          (15 << 8)  /* # of input streams */
  19 #define   AZX_GCAP_OSS          (15 << 12) /* # of output streams */
  20 #define AZX_REG_VMIN                    0x02
  21 #define AZX_REG_VMAJ                    0x03
  22 #define AZX_REG_OUTPAY                  0x04
  23 #define AZX_REG_INPAY                   0x06
  24 #define AZX_REG_GCTL                    0x08
  25 #define   AZX_GCTL_RESET        (1 << 0)   /* controller reset */
  26 #define   AZX_GCTL_FCNTRL       (1 << 1)   /* flush control */
  27 #define   AZX_GCTL_UNSOL        (1 << 8)   /* accept unsol. response enable */
  28 #define AZX_REG_WAKEEN                  0x0c
  29 #define AZX_REG_STATESTS                0x0e
  30 #define AZX_REG_GSTS                    0x10
  31 #define   AZX_GSTS_FSTS         (1 << 1)   /* flush status */
  32 #define AZX_REG_GCAP2                   0x12
  33 #define AZX_REG_LLCH                    0x14
  34 #define AZX_REG_OUTSTRMPAY              0x18
  35 #define AZX_REG_INSTRMPAY               0x1A
  36 #define AZX_REG_INTCTL                  0x20
  37 #define AZX_REG_INTSTS                  0x24
  38 #define AZX_REG_WALLCLK                 0x30    /* 24Mhz source */
  39 #define AZX_REG_OLD_SSYNC               0x34    /* SSYNC for old ICH */
  40 #define AZX_REG_SSYNC                   0x38
  41 #define AZX_REG_CORBLBASE               0x40
  42 #define AZX_REG_CORBUBASE               0x44
  43 #define AZX_REG_CORBWP                  0x48
  44 #define AZX_REG_CORBRP                  0x4a
  45 #define   AZX_CORBRP_RST        (1 << 15)  /* read pointer reset */
  46 #define AZX_REG_CORBCTL                 0x4c
  47 #define   AZX_CORBCTL_RUN       (1 << 1)   /* enable DMA */
  48 #define   AZX_CORBCTL_CMEIE     (1 << 0)   /* enable memory error irq */
  49 #define AZX_REG_CORBSTS                 0x4d
  50 #define   AZX_CORBSTS_CMEI      (1 << 0)   /* memory error indication */
  51 #define AZX_REG_CORBSIZE                0x4e
  52
  53 #define AZX_REG_RIRBLBASE               0x50
  54 #define AZX_REG_RIRBUBASE               0x54
  55 #define AZX_REG_RIRBWP                  0x58
  56 #define   AZX_RIRBWP_RST        (1 << 15)  /* write pointer reset */
  57 #define AZX_REG_RINTCNT                 0x5a
  58 #define AZX_REG_RIRBCTL                 0x5c
  59 #define   AZX_RBCTL_IRQ_EN      (1 << 0)   /* enable IRQ */
  60 #define   AZX_RBCTL_DMA_EN      (1 << 1)   /* enable DMA */
  61 #define   AZX_RBCTL_OVERRUN_EN  (1 << 2)   /* enable overrun irq */
  62 #define AZX_REG_RIRBSTS                 0x5d
  63 #define   AZX_RBSTS_IRQ         (1 << 0)   /* response irq */
  64 #define   AZX_RBSTS_OVERRUN     (1 << 2)   /* overrun irq */
  65 #define AZX_REG_RIRBSIZE                0x5e
  66
  67 #define AZX_REG_IC                      0x60
  68 #define AZX_REG_IR                      0x64
  69 #define AZX_REG_IRS                     0x68
  70 #define   AZX_IRS_VALID         (1<<1)
  71 #define   AZX_IRS_BUSY          (1<<0)
  72
  73 #define AZX_REG_DPLBASE                 0x70
  74 #define AZX_REG_DPUBASE                 0x74
  75 #define   AZX_DPLBASE_ENABLE    0x1     /* Enable position buffer */
  76
  77 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
  78 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
  79
  80 /* stream register offsets from stream base */
  81 #define AZX_REG_SD_CTL                  0x00
  82 #define AZX_REG_SD_CTL_3B               0x02 /* 3rd byte of SD_CTL register */
  83 #define AZX_REG_SD_STS                  0x03
  84 #define AZX_REG_SD_LPIB                 0x04
  85 #define AZX_REG_SD_CBL                  0x08
  86 #define AZX_REG_SD_LVI                  0x0c
  87 #define AZX_REG_SD_FIFOW                0x0e
  88 #define AZX_REG_SD_FIFOSIZE             0x10
  89 #define AZX_REG_SD_FORMAT               0x12
  90 #define AZX_REG_SD_FIFOL                0x14
  91 #define AZX_REG_SD_BDLPL                0x18
  92 #define AZX_REG_SD_BDLPU                0x1c
  93
  94 /* GTS registers */
  95 #define AZX_REG_LLCH                    0x14
  96
  97 #define AZX_REG_GTS_BASE                0x520
  98
  99 #define AZX_REG_GTSCC   (AZX_REG_GTS_BASE + 0x00)
 100 #define AZX_REG_WALFCC  (AZX_REG_GTS_BASE + 0x04)
 101 #define AZX_REG_TSCCL   (AZX_REG_GTS_BASE + 0x08)
 102 #define AZX_REG_TSCCU   (AZX_REG_GTS_BASE + 0x0C)
 103 #define AZX_REG_LLPFOC  (AZX_REG_GTS_BASE + 0x14)
 104 #define AZX_REG_LLPCL   (AZX_REG_GTS_BASE + 0x18)
 105 #define AZX_REG_LLPCU   (AZX_REG_GTS_BASE + 0x1C)
 106
 107 /* Haswell/Broadwell display HD-A controller Extended Mode registers */
 108 #define AZX_REG_HSW_EM4                 0x100c
 109 #define AZX_REG_HSW_EM5                 0x1010
 110
 111 /* Skylake/Broxton vendor-specific registers */
 112 #define AZX_REG_VS_EM1                  0x1000
 113 #define AZX_REG_VS_INRC                 0x1004
 114 #define AZX_REG_VS_OUTRC                0x1008
 115 #define AZX_REG_VS_FIFOTRK              0x100C
 116 #define AZX_REG_VS_FIFOTRK2             0x1010
 117 #define AZX_REG_VS_EM2                  0x1030
 118 #define AZX_REG_VS_EM3L                 0x1038
 119 #define AZX_REG_VS_EM3U                 0x103C
 120 #define AZX_REG_VS_EM4L                 0x1040
 121 #define AZX_REG_VS_EM4U                 0x1044
 122 #define AZX_REG_VS_LTRP                 0x1048
 123 #define AZX_REG_VS_D0I3C                0x104A
 124 #define AZX_REG_VS_PCE                  0x104B
 125 #define AZX_REG_VS_L2MAGC               0x1050
 126 #define AZX_REG_VS_L2LAHPT              0x1054
 127 #define AZX_REG_VS_SDXDPIB_XBASE        0x1084
 128 #define AZX_REG_VS_SDXDPIB_XINTERVAL    0x20
 129 #define AZX_REG_VS_SDXEFIFOS_XBASE      0x1094
 130 #define AZX_REG_VS_SDXEFIFOS_XINTERVAL  0x20
 131
 132 /* PCI space */
 133 #define AZX_PCIREG_TCSEL                0x44
 134
 135 /*
 136  * other constants
 137  */
 138
 139 /* max number of fragments - we may use more if allocating more pages for BDL */
 140 #define BDL_SIZE                4096
 141 #define AZX_MAX_BDL_ENTRIES     (BDL_SIZE / 16)
 142 #define AZX_MAX_FRAG            32
 143 /*
 144  * max buffer size - artificial 4MB limit per stream to avoid big allocations
 145  * In theory it can be really big, but as it is per stream on systems with many streams memory could
 146  * be quickly saturated if userspace requests maximum buffer size for each of them.
 147  */
 148 #define AZX_MAX_BUF_SIZE        (4*1024*1024)
 149
 150 /* RIRB int mask: overrun[2], response[0] */
 151 #define RIRB_INT_RESPONSE       0x01
 152 #define RIRB_INT_OVERRUN        0x04
 153 #define RIRB_INT_MASK           0x05
 154
 155 /* STATESTS int mask: S3,SD2,SD1,SD0 */
 156 #define STATESTS_INT_MASK       ((1 << HDA_MAX_CODECS) - 1)
 157
 158 /* SD_CTL bits */
 159 #define SD_CTL_STREAM_RESET     0x01    /* stream reset bit */
 160 #define SD_CTL_DMA_START        0x02    /* stream DMA start bit */
 161 #define SD_CTL_STRIPE           (3 << 16)       /* stripe control */
 162 #define SD_CTL_TRAFFIC_PRIO     (1 << 18)       /* traffic priority */
 163 #define SD_CTL_DIR              (1 << 19)       /* bi-directional stream */
 164 #define SD_CTL_STREAM_TAG_MASK  (0xf << 20)
 165 #define SD_CTL_STREAM_TAG_SHIFT 20
 166
 167 /* SD_CTL and SD_STS */
 168 #define SD_INT_DESC_ERR         0x10    /* descriptor error interrupt */
 169 #define SD_INT_FIFO_ERR         0x08    /* FIFO error interrupt */
 170 #define SD_INT_COMPLETE         0x04    /* completion interrupt */
 171 #define SD_INT_MASK             (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
 172                                  SD_INT_COMPLETE)
 173 #define SD_CTL_STRIPE_MASK      0x3     /* stripe control mask */
 174
 175 /* SD_STS */
 176 #define SD_STS_FIFO_READY       0x20    /* FIFO ready */
 177
 178 /* INTCTL and INTSTS */
 179 #define AZX_INT_ALL_STREAM      0xff       /* all stream interrupts */
 180 #define AZX_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
 181 #define AZX_INT_GLOBAL_EN       0x80000000 /* global interrupt enable bit */
 182
 183 /* below are so far hardcoded - should read registers in future */
 184 #define AZX_MAX_CORB_ENTRIES    256
 185 #define AZX_MAX_RIRB_ENTRIES    256
 186
 187 /* Capability header  Structure */
 188 #define AZX_REG_CAP_HDR                 0x0
 189 #define AZX_CAP_HDR_VER_OFF             28
 190 #define AZX_CAP_HDR_VER_MASK            (0xF << AZX_CAP_HDR_VER_OFF)
 191 #define AZX_CAP_HDR_ID_OFF              16
 192 #define AZX_CAP_HDR_ID_MASK             (0xFFF << AZX_CAP_HDR_ID_OFF)
 193 #define AZX_CAP_HDR_NXT_PTR_MASK        0xFFFF
 194
 195 /* registers of Software Position Based FIFO Capability Structure */
 196 #define AZX_SPB_CAP_ID                  0x4
 197 #define AZX_REG_SPB_BASE_ADDR           0x700
 198 #define AZX_REG_SPB_SPBFCH              0x00
 199 #define AZX_REG_SPB_SPBFCCTL            0x04
 200 /* Base used to calculate the iterating register offset */
 201 #define AZX_SPB_BASE                    0x08
 202 /* Interval used to calculate the iterating register offset */
 203 #define AZX_SPB_INTERVAL                0x08
 204 /* SPIB base */
 205 #define AZX_SPB_SPIB                    0x00
 206 /* SPIB MAXFIFO base*/
 207 #define AZX_SPB_MAXFIFO                 0x04
 208
 209 /* registers of Global Time Synchronization Capability Structure */
 210 #define AZX_GTS_CAP_ID                  0x1
 211 #define AZX_REG_GTS_GTSCH               0x00
 212 #define AZX_REG_GTS_GTSCD               0x04
 213 #define AZX_REG_GTS_GTSCTLAC            0x0C
 214 #define AZX_GTS_BASE                    0x20
 215 #define AZX_GTS_INTERVAL                0x20
 216
 217 /* registers for Processing Pipe Capability Structure */
 218 #define AZX_PP_CAP_ID                   0x3
 219 #define AZX_REG_PP_PPCH                 0x10
 220 #define AZX_REG_PP_PPCTL                0x04
 221 #define AZX_PPCTL_PIE                   (1<<31)
 222 #define AZX_PPCTL_GPROCEN               (1<<30)
 223 /* _X_ = dma engine # and cannot * exceed 29 (per spec max 30 dma engines) */
 224 #define AZX_PPCTL_PROCEN(_X_)           (1<<(_X_))
 225
 226 #define AZX_REG_PP_PPSTS                0x08
 227
 228 #define AZX_PPHC_BASE                   0x10
 229 #define AZX_PPHC_INTERVAL               0x10
 230
 231 #define AZX_REG_PPHCLLPL                0x0
 232 #define AZX_REG_PPHCLLPU                0x4
 233 #define AZX_REG_PPHCLDPL                0x8
 234 #define AZX_REG_PPHCLDPU                0xC
 235
 236 #define AZX_PPLC_BASE                   0x10
 237 #define AZX_PPLC_MULTI                  0x10
 238 #define AZX_PPLC_INTERVAL               0x10
 239
 240 #define AZX_REG_PPLCCTL                 0x0
 241 #define AZX_PPLCCTL_STRM_BITS           4
 242 #define AZX_PPLCCTL_STRM_SHIFT          20
 243 #define AZX_REG_MASK(bit_num, offset) \
 244         (((1 << (bit_num)) - 1) << (offset))
 245 #define AZX_PPLCCTL_STRM_MASK \
 246         AZX_REG_MASK(AZX_PPLCCTL_STRM_BITS, AZX_PPLCCTL_STRM_SHIFT)
 247 #define AZX_PPLCCTL_RUN                 (1<<1)
 248 #define AZX_PPLCCTL_STRST               (1<<0)
 249
 250 #define AZX_REG_PPLCFMT                 0x4
 251 #define AZX_REG_PPLCLLPL                0x8
 252 #define AZX_REG_PPLCLLPU                0xC
 253
 254 /* registers for Multiple Links Capability Structure */
 255 #define AZX_ML_CAP_ID                   0x2
 256 #define AZX_REG_ML_MLCH                 0x00
 257 #define AZX_REG_ML_MLCD                 0x04
 258 #define AZX_ML_BASE                     0x40
 259 #define AZX_ML_INTERVAL                 0x40
 260
 261 #define AZX_REG_ML_LCAP                 0x00
 262 #define AZX_REG_ML_LCTL                 0x04
 263 #define AZX_REG_ML_LOSIDV               0x08
 264 #define AZX_REG_ML_LSDIID               0x0C
 265 #define AZX_REG_ML_LPSOO                0x10
 266 #define AZX_REG_ML_LPSIO                0x12
 267 #define AZX_REG_ML_LWALFC               0x18
 268 #define AZX_REG_ML_LOUTPAY              0x20
 269 #define AZX_REG_ML_LINPAY               0x30
 270
 271 /* bit0 is reserved, with BIT(1) mapping to stream1 */
 272 #define ML_LOSIDV_STREAM_MASK           0xFFFE
 273
 274 #define ML_LCTL_SCF_MASK                        0xF
 275 #define AZX_MLCTL_SPA                           (0x1 << 16)
 276 #define AZX_MLCTL_CPA                           (0x1 << 23)
 277 #define AZX_MLCTL_SPA_SHIFT                     16
 278 #define AZX_MLCTL_CPA_SHIFT                     23
 279
 280 /* registers for DMA Resume Capability Structure */
 281 #define AZX_DRSM_CAP_ID                 0x5
 282 #define AZX_REG_DRSM_CTL                0x4
 283 /* Base used to calculate the iterating register offset */
 284 #define AZX_DRSM_BASE                   0x08
 285 /* Interval used to calculate the iterating register offset */
 286 #define AZX_DRSM_INTERVAL               0x08
 287
 288 /* Global time synchronization registers */
 289 #define GTSCC_TSCCD_MASK                0x80000000
 290 #define GTSCC_TSCCD_SHIFT               BIT(31)
 291 #define GTSCC_TSCCI_MASK                0x20
 292 #define GTSCC_CDMAS_DMA_DIR_SHIFT       4
 293
 294 #define WALFCC_CIF_MASK                 0x1FF
 295 #define WALFCC_FN_SHIFT                 9
 296 #define HDA_CLK_CYCLES_PER_FRAME        512
 297
 298 /*
 299  * An error occurs near frame "rollover". The clocks in frame value indicates
 300  * whether this error may have occurred. Here we use the value of 10. Please
 301  * see the errata for the right number [<10]
 302  */
 303 #define HDA_MAX_CYCLE_VALUE             499
 304 #define HDA_MAX_CYCLE_OFFSET            10
 305 #define HDA_MAX_CYCLE_READ_RETRY        10
 306
 307 #define TSCCU_CCU_SHIFT                 32
 308 #define LLPC_CCU_SHIFT                  32
 309
 310
 311 /*
 312  * helpers to read the stream position
 313  */
 314 static inline unsigned int
 315 snd_hdac_stream_get_pos_lpib(struct hdac_stream *stream)
 316 {
 317         return snd_hdac_stream_readl(stream, SD_LPIB);
 318 }
 319
 320 static inline unsigned int
 321 snd_hdac_stream_get_pos_posbuf(struct hdac_stream *stream)
 322 {
 323         return le32_to_cpu(*stream->posbuf);
 324 }
 325
 326 #endif /* __SOUND_HDA_REGISTER_H */