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   1 #ifndef PSXREGS_H_
   2 #define PSXREGS_H_
   3
   4 #include <stdint.h>
   5
   6 #define INTR_VEC                (*(volatile uint32_t*)0x80000080)
   7
   8 #define REG_BASE                0x1f800000
   9 #define REGPTR32(x)             (*(volatile uint32_t*)(REG_BASE | (x)))
  10 #define REGPTR16(x)             (*(volatile uint16_t*)(REG_BASE | (x)))
  11
  12 /* --- GPU --- */
  13 #define REGN_GP0                0x1810
  14 #define REGN_GP1                0x1814
  15 #define REGN_GPUREAD    REGN_GP0
  16 #define REGN_GPUSTAT    REGN_GP1
  17
  18 #define REG_GP0                 REGPTR32(REGN_GP0)
  19 #define REG_GP1                 REGPTR32(REGN_GP1)
  20 #define REG_GPUREAD             REGPTR32(REGN_GPUREAD)
  21 #define REG_GPUSTAT             REGPTR32(REGN_GPUSTAT)
  22
  23 /* --- interrupts --- */
  24 #define REGN_ISTAT              1070h
  25 #define REGN_IMASK              1074h
  26
  27 #define REG_ISTAT               REGPTR32(REGN_ISTAT)
  28 #define REG_IMASK               REGPTR32(REGN_IMASK)
  29
  30 enum {
  31         IRQ_VBLANK,
  32         IRQ_GPU,
  33         IRQ_CDROM,
  34         IRQ_DMA,
  35         IRQ_TIMER0, IRQ_TIMER1, IRQ_TIMER2,
  36         IRQ_JOYMC,
  37         IRQ_SIO,
  38         IRQ_SPU,
  39         IRQ_LPEN
  40 };
  41
  42 #define GPCMD(cmd)      ((cmd) << 24)
  43
  44 enum {
  45         GP1_RESET               = 0,
  46         GP1_RESET_CMDBUF = 0x01,
  47         GP1_IACK                = 0x02,
  48         GP1_DISPEN              = 0x03, /* 0:on, 1:off */
  49         GP1_DMADIR              = 0x04, /* 0:off, 1:fifo, 2:cpu->gpu, 3:gpu->cpu */
  50         GP1_START               = 0x05, /* bits [0,9]: X, [10,18]: Y */
  51         GP1_HDISP               = 0x06, /* (pix*8) bits [0,11]: left, [12,23]: right */
  52         GP1_VDISP               = 0x07, /* bits [0,9]: top, [10,19]: bottom */
  53         GP1_DISPMODE    = 0x08, /* see DISP_* flags */
  54 };
  55
  56 #define DISP_H256       0
  57 #define DISP_H320       0x01
  58 #define DISP_H512       0x02
  59 #define DISP_H640       0x03
  60 #define DISP_V240       0
  61 #define DISP_V480       0x04
  62 #define DISP_NTSC       0
  63 #define DISP_PAL        0x08
  64 #define DISP_15BPP      0
  65 #define DISP_24BPP      0x10
  66 #define DISP_ILACE      0x20
  67 #define DISP_H368       0x40
  68
  69
  70 /* primitive bits for GP0 drawing commands */
  71 enum {
  72         PRIM_TRI                = 0x20,
  73         PRIM_QUAD               = 0x28,
  74         PRIM_LINE               = 0x40,
  75         PRIM_PLINE              = 0x48,
  76         PRIM_RECT               = 0x60,
  77         PRIM_POINT              = 0x6a, /* rect 1x1 */
  78         PRIM_RECT8              = 0x70,
  79         PRIM_RECT16             = 0x78,
  80
  81         PRIM_NOMOD              = 0x01, /* no-modulate tex/color bit */
  82         PRIM_ST                 = 0x02, /* semi-transparent bit */
  83         PRIM_TEX                = 0x04, /* textured bit */
  84         PRIM_GOURAUD    = 0x10  /* gouraud bit */
  85 };
  86
  87 enum {
  88         GP0_CLEAR_CACHE = 0,
  89         GP0_FILLRECT    = 0x02, /* color24+cmd/topleft/size */
  90         GP0_BLT_VIDVID  = 0x80, /* cmd/src/dst/size */
  91         GP0_BLT_CPUVID  = 0xa0, /* cmd/dst/size/data(dma?) */
  92         GP0_BLT_VIDCPU  = 0xc0, /* cmd/src/size/data(GPUREAD|dma) */
  93         GP0_TEXPG               = 0xe1,
  94         GP0_TEXWIN              = 0xe2,
  95         GP0_CLIP_TL             = 0xe3,
  96         GP0_CLIP_BR             = 0xe4,
  97         GP0_ORIGIN              = 0xe5,
  98
  99         /* flat tri/quad: cmd+color/v0/.../vN (16+16 YYYYXXXX) */
 100         GP0_TRI                         = PRIM_TRI,
 101         GP0_TRI_ST                      = PRIM_TRI | PRIM_ST,
 102         GP0_QUAD                        = PRIM_QUAD,
 103         GP0_QUAD_ST                     = PRIM_QUAD | PRIM_ST,
 104         /* textured tri/quad: cmd+color/v0/uv0+pal/v1/uv1+texpage/v2/uv2/.. */
 105         GP0_TRI_TEXMOD          = PRIM_TRI | PRIM_TEX,
 106         GP0_TRI_TEX                     = PRIM_TRI | PRIM_TEX | PRIM_NOMOD,
 107         GP0_TRI_ST_TEXMOD       = PRIM_TRI | PRIM_ST | PRIM_TEX,
 108         GP0_TRI_ST_TEX          = PRIM_TRI | PRIM_ST | PRIM_TEX | PRIM_NOMOD,
 109         GP0_QUAD_TEXMOD         = PRIM_QUAD | PRIM_TEX,
 110         GP0_QUAD_TEX            = PRIM_QUAD | PRIM_TEX | PRIM_NOMOD,
 111         GP0_QUAD_ST_TEXMOD      = PRIM_QUAD | PRIM_ST | PRIM_TEX,
 112         GP0_QUAD_ST_TEX         = PRIM_QUAD | PRIM_ST | PRIM_TEX | PRIM_NOMOD,
 113         /* gouraud tri/quad: cmd+color0/v0/c1/v1/.../cN/vN */
 114         GP0_GTRI                        = PRIM_TRI | PRIM_GOURAUD,
 115         GP0_GTRI_ST                     = PRIM_TRI | PRIM_GOURAUD | PRIM_ST,
 116         GP0_GQUAD                       = PRIM_QUAD | PRIM_GOURAUD,
 117         GP0_GQUAD_ST            = PRIM_QUAD | PRIM_GOURAUD | PRIM_ST,
 118         /* gouraud tex tri/quad: cmd+color0/v0/uv0+pal/c1/v1/uv1+texpage/c2/v2/uv2/... */
 119         GP0_GTRI_TEXMOD         = PRIM_TRI | PRIM_GOURAUD | PRIM_TEX,
 120         GP0_GTRI_ST_TEXMOD      = PRIM_TRI | PRIM_GOURAUD | PRIM_ST | PRIM_TEX,
 121         GP0_GQUAD_TEXMOD        = PRIM_QUAD | PRIM_GOURAUD | PRIM_TEX,
 122         GP0_GQUAD_ST_TEXMOD     = PRIM_QUAD | PRIM_GOURAUD | PRIM_ST | PRIM_TEX,
 123
 124         /* line/poly-line: cmd+color/v0/.../vN/PLINE_END(55555555h) */
 125         GP0_LINE                        = PRIM_LINE,
 126         GP0_LINE_ST                     = PRIM_LINE | PRIM_ST,
 127         GP0_PLINE                       = PRIM_PLINE,
 128         GP0_PLINE_ST            = PRIM_PLINE | PRIM_ST,
 129         /* line/poly-line: cmd+color0/v0/c1/v1/.../cN/vN/PLINE_END */
 130         GP0_GLINE                       = PRIM_LINE | PRIM_GOURAUD,
 131         GP0_GLINE_ST            = PRIM_LINE | PRIM_GOURAUD | PRIM_ST,
 132         GP0_GPLINE                      = PRIM_PLINE | PRIM_GOURAUD,
 133         GP0_GPLINE_ST           = PRIM_PLINE | PRIM_GOURAUD | PRIM_ST,
 134
 135         /* rect: cmd+col/pos/size(for variable rect) */
 136         GP0_RECT                        = PRIM_RECT,
 137         GP0_RECT_ST                     = PRIM_RECT | PRIM_ST,
 138         GP0_POINT                       = PRIM_POINT,
 139         GP0_POINT_ST            = PRIM_POINT | PRIM_ST,
 140         GP0_RECT8                       = PRIM_RECT8,
 141         GP0_RECT8_ST            = PRIM_RECT8 | PRIM_ST,
 142         GP0_RECT16                      = PRIM_RECT16,
 143         GP0_RECT16_ST           = PRIM_RECT16 | PRIM_ST,
 144         /* rect: cmd+col/pos/uv0+pal/size(for var rect), texpage in GP0(e1h) */
 145         GP0_RECT_TEXMOD         = PRIM_RECT | PRIM_TEX,
 146         GP0_RECT_TEX            = PRIM_RECT | PRIM_TEX | PRIM_NOMOD,
 147         GP0_RECT_ST_TEXMOD      = PRIM_RECT | PRIM_ST | PRIM_TEX,
 148         GP0_RECT_ST_TEX         = PRIM_RECT | PRIM_ST | PRIM_TEX | PRIM_NOMOD,
 149         /* ... TODO and the rest ... */
 150 };
 151
 152
 153 enum {
 154         TEXPG_BLEND_HALF        = 0,
 155         TEXPG_BLEND_ADD         = 0x0020,
 156         TEXPG_BLEND_SUB         = 0x0040,
 157         TEXPG_BLEND_QUART       = 0x0060,
 158         TEXPG_8BPP                      = 0x0080,
 159         TEXPG_15BPP                     = 0x0100,
 160         TEXPG_DRAWDISP          = 0x0200,
 161         TEXPG_DITHER            = 0x0400,
 162         TEXPG_NOTEX                     = 0x0800,
 163         TEXPG_XFLIP                     = 0x1000,
 164         TEXPG_YFLIP                     = 0x2000
 165 };
 166
 167 #endif  /* PSXREGS_H_ */