include/sound/hda_register.h

   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 /* PCI space */
  97 #define AZX_PCIREG_TCSEL                0x44
  98
  99 /*
 100  * other constants
 101  */
 102
 103 /* max number of fragments - we may use more if allocating more pages for BDL */
 104 #define BDL_SIZE                4096
 105 #define AZX_MAX_BDL_ENTRIES     (BDL_SIZE / 16)
 106 #define AZX_MAX_FRAG            32
 107 /* max buffer size - no h/w limit, you can increase as you like */
 108 #define AZX_MAX_BUF_SIZE        (1024*1024*1024)
 109
 110 /* RIRB int mask: overrun[2], response[0] */
 111 #define RIRB_INT_RESPONSE       0x01
 112 #define RIRB_INT_OVERRUN        0x04
 113 #define RIRB_INT_MASK           0x05
 114
 115 /* STATESTS int mask: S3,SD2,SD1,SD0 */
 116 #define STATESTS_INT_MASK       ((1 << HDA_MAX_CODECS) - 1)
 117
 118 /* SD_CTL bits */
 119 #define SD_CTL_STREAM_RESET     0x01    /* stream reset bit */
 120 #define SD_CTL_DMA_START        0x02    /* stream DMA start bit */
 121 #define SD_CTL_STRIPE           (3 << 16)       /* stripe control */
 122 #define SD_CTL_TRAFFIC_PRIO     (1 << 18)       /* traffic priority */
 123 #define SD_CTL_DIR              (1 << 19)       /* bi-directional stream */
 124 #define SD_CTL_STREAM_TAG_MASK  (0xf << 20)
 125 #define SD_CTL_STREAM_TAG_SHIFT 20
 126
 127 /* SD_CTL and SD_STS */
 128 #define SD_INT_DESC_ERR         0x10    /* descriptor error interrupt */
 129 #define SD_INT_FIFO_ERR         0x08    /* FIFO error interrupt */
 130 #define SD_INT_COMPLETE         0x04    /* completion interrupt */
 131 #define SD_INT_MASK             (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
 132                                  SD_INT_COMPLETE)
 133
 134 /* SD_STS */
 135 #define SD_STS_FIFO_READY       0x20    /* FIFO ready */
 136
 137 /* INTCTL and INTSTS */
 138 #define AZX_INT_ALL_STREAM      0xff       /* all stream interrupts */
 139 #define AZX_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
 140 #define AZX_INT_GLOBAL_EN       0x80000000 /* global interrupt enable bit */
 141
 142 /* below are so far hardcoded - should read registers in future */
 143 #define AZX_MAX_CORB_ENTRIES    256
 144 #define AZX_MAX_RIRB_ENTRIES    256
 145
 146 /* Capability header  Structure */
 147 #define AZX_REG_CAP_HDR                 0x0
 148 #define AZX_CAP_HDR_VER_OFF             28
 149 #define AZX_CAP_HDR_VER_MASK            (0xF << AZX_CAP_HDR_VER_OFF)
 150 #define AZX_CAP_HDR_ID_OFF              16
 151 #define AZX_CAP_HDR_ID_MASK             (0xFFF << AZX_CAP_HDR_ID_OFF)
 152 #define AZX_CAP_HDR_NXT_PTR_MASK        0xFFFF
 153
 154 /* registers of Software Position Based FIFO Capability Structure */
 155 #define AZX_SPB_CAP_ID                  0x4
 156 #define AZX_REG_SPB_BASE_ADDR           0x700
 157 #define AZX_REG_SPB_SPBFCH              0x00
 158 #define AZX_REG_SPB_SPBFCCTL            0x04
 159 /* Base used to calculate the iterating register offset */
 160 #define AZX_SPB_BASE                    0x08
 161 /* Interval used to calculate the iterating register offset */
 162 #define AZX_SPB_INTERVAL                0x08
 163
 164 /* registers of Global Time Synchronization Capability Structure */
 165 #define AZX_GTS_CAP_ID                  0x1
 166 #define AZX_REG_GTS_GTSCH               0x00
 167 #define AZX_REG_GTS_GTSCD               0x04
 168 #define AZX_REG_GTS_GTSCTLAC            0x0C
 169 #define AZX_GTS_BASE                    0x20
 170 #define AZX_GTS_INTERVAL                0x20
 171
 172 /* registers for Processing Pipe Capability Structure */
 173 #define AZX_PP_CAP_ID                   0x3
 174 #define AZX_REG_PP_PPCH                 0x10
 175 #define AZX_REG_PP_PPCTL                0x04
 176 #define AZX_PPCTL_PIE                   (1<<31)
 177 #define AZX_PPCTL_GPROCEN               (1<<30)
 178 /* _X_ = dma engine # and cannot * exceed 29 (per spec max 30 dma engines) */
 179 #define AZX_PPCTL_PROCEN(_X_)           (1<<(_X_))
 180
 181 #define AZX_REG_PP_PPSTS                0x08
 182
 183 #define AZX_PPHC_BASE                   0x10
 184 #define AZX_PPHC_INTERVAL               0x10
 185
 186 #define AZX_REG_PPHCLLPL                0x0
 187 #define AZX_REG_PPHCLLPU                0x4
 188 #define AZX_REG_PPHCLDPL                0x8
 189 #define AZX_REG_PPHCLDPU                0xC
 190
 191 #define AZX_PPLC_BASE                   0x10
 192 #define AZX_PPLC_MULTI                  0x10
 193 #define AZX_PPLC_INTERVAL               0x10
 194
 195 #define AZX_REG_PPLCCTL                 0x0
 196 #define AZX_PPLCCTL_STRM_BITS           4
 197 #define AZX_PPLCCTL_STRM_SHIFT          20
 198 #define AZX_REG_MASK(bit_num, offset) \
 199         (((1 << (bit_num)) - 1) << (offset))
 200 #define AZX_PPLCCTL_STRM_MASK \
 201         AZX_REG_MASK(AZX_PPLCCTL_STRM_BITS, AZX_PPLCCTL_STRM_SHIFT)
 202 #define AZX_PPLCCTL_RUN                 (1<<1)
 203 #define AZX_PPLCCTL_STRST               (1<<0)
 204
 205 #define AZX_REG_PPLCFMT                 0x4
 206 #define AZX_REG_PPLCLLPL                0x8
 207 #define AZX_REG_PPLCLLPU                0xC
 208
 209 /* registers for Multiple Links Capability Structure */
 210 #define AZX_ML_CAP_ID                   0x2
 211 #define AZX_REG_ML_MLCH                 0x00
 212 #define AZX_REG_ML_MLCD                 0x04
 213 #define AZX_ML_BASE                     0x40
 214 #define AZX_ML_INTERVAL                 0x40
 215
 216 #define AZX_REG_ML_LCAP                 0x00
 217 #define AZX_REG_ML_LCTL                 0x04
 218 #define AZX_REG_ML_LOSIDV               0x08
 219 #define AZX_REG_ML_LSDIID               0x0C
 220 #define AZX_REG_ML_LPSOO                0x10
 221 #define AZX_REG_ML_LPSIO                0x12
 222 #define AZX_REG_ML_LWALFC               0x18
 223 #define AZX_REG_ML_LOUTPAY              0x20
 224 #define AZX_REG_ML_LINPAY               0x30
 225
 226 #define AZX_MLCTL_SPA                   (1<<16)
 227 #define AZX_MLCTL_CPA                   23
 228
 229 /*
 230  * helpers to read the stream position
 231  */
 232 static inline unsigned int
 233 snd_hdac_stream_get_pos_lpib(struct hdac_stream *stream)
 234 {
 235         return snd_hdac_stream_readl(stream, SD_LPIB);
 236 }
 237
 238 static inline unsigned int
 239 snd_hdac_stream_get_pos_posbuf(struct hdac_stream *stream)
 240 {
 241         return le32_to_cpu(*stream->posbuf);
 242 }
 243
 244 #endif /* __SOUND_HDA_REGISTER_H */