Takashi Iwai | 1475241 | 2015-04-14 12:15:47 +0200 | [diff] [blame^] | 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_INTCTL 0x20 |
| 32 | #define AZX_REG_INTSTS 0x24 |
| 33 | #define AZX_REG_WALLCLK 0x30 /* 24Mhz source */ |
| 34 | #define AZX_REG_OLD_SSYNC 0x34 /* SSYNC for old ICH */ |
| 35 | #define AZX_REG_SSYNC 0x38 |
| 36 | #define AZX_REG_CORBLBASE 0x40 |
| 37 | #define AZX_REG_CORBUBASE 0x44 |
| 38 | #define AZX_REG_CORBWP 0x48 |
| 39 | #define AZX_REG_CORBRP 0x4a |
| 40 | #define AZX_CORBRP_RST (1 << 15) /* read pointer reset */ |
| 41 | #define AZX_REG_CORBCTL 0x4c |
| 42 | #define AZX_CORBCTL_RUN (1 << 1) /* enable DMA */ |
| 43 | #define AZX_CORBCTL_CMEIE (1 << 0) /* enable memory error irq */ |
| 44 | #define AZX_REG_CORBSTS 0x4d |
| 45 | #define AZX_CORBSTS_CMEI (1 << 0) /* memory error indication */ |
| 46 | #define AZX_REG_CORBSIZE 0x4e |
| 47 | |
| 48 | #define AZX_REG_RIRBLBASE 0x50 |
| 49 | #define AZX_REG_RIRBUBASE 0x54 |
| 50 | #define AZX_REG_RIRBWP 0x58 |
| 51 | #define AZX_RIRBWP_RST (1 << 15) /* write pointer reset */ |
| 52 | #define AZX_REG_RINTCNT 0x5a |
| 53 | #define AZX_REG_RIRBCTL 0x5c |
| 54 | #define AZX_RBCTL_IRQ_EN (1 << 0) /* enable IRQ */ |
| 55 | #define AZX_RBCTL_DMA_EN (1 << 1) /* enable DMA */ |
| 56 | #define AZX_RBCTL_OVERRUN_EN (1 << 2) /* enable overrun irq */ |
| 57 | #define AZX_REG_RIRBSTS 0x5d |
| 58 | #define AZX_RBSTS_IRQ (1 << 0) /* response irq */ |
| 59 | #define AZX_RBSTS_OVERRUN (1 << 2) /* overrun irq */ |
| 60 | #define AZX_REG_RIRBSIZE 0x5e |
| 61 | |
| 62 | #define AZX_REG_IC 0x60 |
| 63 | #define AZX_REG_IR 0x64 |
| 64 | #define AZX_REG_IRS 0x68 |
| 65 | #define AZX_IRS_VALID (1<<1) |
| 66 | #define AZX_IRS_BUSY (1<<0) |
| 67 | |
| 68 | #define AZX_REG_DPLBASE 0x70 |
| 69 | #define AZX_REG_DPUBASE 0x74 |
| 70 | #define AZX_DPLBASE_ENABLE 0x1 /* Enable position buffer */ |
| 71 | |
| 72 | /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */ |
| 73 | enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 }; |
| 74 | |
| 75 | /* stream register offsets from stream base */ |
| 76 | #define AZX_REG_SD_CTL 0x00 |
| 77 | #define AZX_REG_SD_STS 0x03 |
| 78 | #define AZX_REG_SD_LPIB 0x04 |
| 79 | #define AZX_REG_SD_CBL 0x08 |
| 80 | #define AZX_REG_SD_LVI 0x0c |
| 81 | #define AZX_REG_SD_FIFOW 0x0e |
| 82 | #define AZX_REG_SD_FIFOSIZE 0x10 |
| 83 | #define AZX_REG_SD_FORMAT 0x12 |
| 84 | #define AZX_REG_SD_BDLPL 0x18 |
| 85 | #define AZX_REG_SD_BDLPU 0x1c |
| 86 | |
| 87 | /* PCI space */ |
| 88 | #define AZX_PCIREG_TCSEL 0x44 |
| 89 | |
| 90 | /* |
| 91 | * other constants |
| 92 | */ |
| 93 | |
| 94 | /* max number of fragments - we may use more if allocating more pages for BDL */ |
| 95 | #define BDL_SIZE 4096 |
| 96 | #define AZX_MAX_BDL_ENTRIES (BDL_SIZE / 16) |
| 97 | #define AZX_MAX_FRAG 32 |
| 98 | /* max buffer size - no h/w limit, you can increase as you like */ |
| 99 | #define AZX_MAX_BUF_SIZE (1024*1024*1024) |
| 100 | |
| 101 | /* RIRB int mask: overrun[2], response[0] */ |
| 102 | #define RIRB_INT_RESPONSE 0x01 |
| 103 | #define RIRB_INT_OVERRUN 0x04 |
| 104 | #define RIRB_INT_MASK 0x05 |
| 105 | |
| 106 | /* STATESTS int mask: S3,SD2,SD1,SD0 */ |
| 107 | #define STATESTS_INT_MASK ((1 << HDA_MAX_CODECS) - 1) |
| 108 | |
| 109 | /* SD_CTL bits */ |
| 110 | #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */ |
| 111 | #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */ |
| 112 | #define SD_CTL_STRIPE (3 << 16) /* stripe control */ |
| 113 | #define SD_CTL_TRAFFIC_PRIO (1 << 18) /* traffic priority */ |
| 114 | #define SD_CTL_DIR (1 << 19) /* bi-directional stream */ |
| 115 | #define SD_CTL_STREAM_TAG_MASK (0xf << 20) |
| 116 | #define SD_CTL_STREAM_TAG_SHIFT 20 |
| 117 | |
| 118 | /* SD_CTL and SD_STS */ |
| 119 | #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */ |
| 120 | #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */ |
| 121 | #define SD_INT_COMPLETE 0x04 /* completion interrupt */ |
| 122 | #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\ |
| 123 | SD_INT_COMPLETE) |
| 124 | |
| 125 | /* SD_STS */ |
| 126 | #define SD_STS_FIFO_READY 0x20 /* FIFO ready */ |
| 127 | |
| 128 | /* INTCTL and INTSTS */ |
| 129 | #define AZX_INT_ALL_STREAM 0xff /* all stream interrupts */ |
| 130 | #define AZX_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */ |
| 131 | #define AZX_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */ |
| 132 | |
| 133 | /* below are so far hardcoded - should read registers in future */ |
| 134 | #define AZX_MAX_CORB_ENTRIES 256 |
| 135 | #define AZX_MAX_RIRB_ENTRIES 256 |
| 136 | |
| 137 | /* |
| 138 | * helpers to read the stream position |
| 139 | */ |
| 140 | static inline unsigned int |
| 141 | snd_hdac_stream_get_pos_lpib(struct hdac_stream *stream) |
| 142 | { |
| 143 | return snd_hdac_stream_readl(stream, SD_LPIB); |
| 144 | } |
| 145 | |
| 146 | static inline unsigned int |
| 147 | snd_hdac_stream_get_pos_posbuf(struct hdac_stream *stream) |
| 148 | { |
| 149 | return le32_to_cpu(*stream->posbuf); |
| 150 | } |
| 151 | |
| 152 | #endif /* __SOUND_HDA_REGISTER_H */ |