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   1 #ifndef PSXREGS_H_
   2 #define PSXREGS_H_
   3
   4 #define REG_BASE                0x1f800000
   5 #define REGPTR32(x)             (*(volatile unsigned long*)(REG_BASE | (x)))
   6 #define REGPTR16(x)             (*(volatile unsigned short*)(REG_BASE | (x)))
   7
   8 /* --- GPU --- */
   9 #define REGN_GP0                0x1810
  10 #define REGN_GP1                0x1814
  11 #define REGN_GPUREAD    REGN_GP0
  12 #define REGN_GPUSTAT    REGN_GP1
  13
  14 #define REG_GP0                 REGPTR32(REGN_GP0)
  15 #define REG_GP1                 REGPTR32(REGN_GP1)
  16 #define REG_GPUREAD             REGPTR32(REGN_GPUREAD)
  17 #define REG_GPUSTAT             REGPTR32(REGN_GPUSTAT)
  18
  19 /* --- interrupts --- */
  20 #define REGN_ISTAT              1070h
  21 #define REGN_IMASK              1074h
  22
  23 #define REG_ISTAT               REGPTR32(REGN_ISTAT)
  24 #define REG_IMASK               REGPTR32(REGN_IMASK)
  25
  26 enum {
  27         IRQ_VBLANK      = 0x0001,
  28         IRQ_GPU         = 0x0002,
  29         IRQ_CDROM       = 0x0004,
  30         IRQ_DMA         = 0x0008,
  31         IRQ_TIMER0      = 0x0010,
  32         IRQ_TIMER1      = 0x0020,
  33         IRQ_TIMER2      = 0x0040,
  34         IRQ_JOYMC       = 0x0080,
  35         IRQ_SIO         = 0x0100,
  36         IRQ_SPU         = 0x0200,
  37         IRQ_LPEN        = 0x0400
  38 };
  39
  40 #define GPCMD(cmd)      ((cmd) << 24)
  41
  42 enum {
  43         GP1_RESET               = 0,
  44         GP1_RESET_CMDBUF = 0x01,
  45         GP1_IACK                = 0x02,
  46         GP1_DISPEN              = 0x03, /* 0:on, 1:off */
  47         GP1_DMADIR              = 0x04, /* 0:off, 1:fifo, 2:cpu->gpu, 3:gpu->cpu */
  48         GP1_START               = 0x05, /* bits [0,9]: X, [10,18]: Y */
  49         GP1_HDISP               = 0x06, /* (pix*8) bits [0,11]: left, [12,23]: right */
  50         GP1_VDISP               = 0x07, /* bits [0,9]: top, [10,19]: bottom */
  51         GP1_DISPMODE    = 0x08, /* see DISP_* flags */
  52 };
  53
  54 #define DISP_H256       0
  55 #define DISP_H320       0x01
  56 #define DISP_H512       0x02
  57 #define DISP_H640       0x03
  58 #define DISP_V240       0
  59 #define DISP_V480       0x04
  60 #define DISP_NTSC       0
  61 #define DISP_PAL        0x08
  62 #define DISP_15BPP      0
  63 #define DISP_24BPP      0x10
  64 #define DISP_ILACE      0x20
  65 #define DISP_H368       0x40
  66
  67
  68 /* primitive bits for GP0 drawing commands */
  69 enum {
  70         PRIM_TRI                = 0x20,
  71         PRIM_QUAD               = 0x28,
  72         PRIM_LINE               = 0x40,
  73         PRIM_PLINE              = 0x48,
  74         PRIM_RECT               = 0x60,
  75         PRIM_POINT              = 0x6a, /* rect 1x1 */
  76         PRIM_RECT8              = 0x70,
  77         PRIM_RECT16             = 0x78,
  78
  79         PRIM_NOMOD              = 0x01, /* no-modulate tex/color bit */
  80         PRIM_ST                 = 0x02, /* semi-transparent bit */
  81         PRIM_TEX                = 0x04, /* textured bit */
  82         PRIM_GOURAUD    = 0x10  /* gouraud bit */
  83 };
  84
  85 enum {
  86         GP0_CLEAR_CACHE = 0,
  87         GP0_FILLRECT    = 0x02, /* color24+cmd/topleft/size */
  88         GP0_BLT_VIDVID  = 0x80, /* cmd/src/dst/size */
  89         GP0_BLT_CPUVID  = 0xa0, /* cmd/dst/size/data(dma?) */
  90         GP0_BLT_VIDCPU  = 0xc0, /* cmd/src/size/data(GPUREAD|dma) */
  91         GP0_TEXPG               = 0xe1,
  92         GP0_TEXWIN              = 0xe2,
  93         GP0_CLIP_TL             = 0xe3,
  94         GP0_CLIP_BR             = 0xe4,
  95         GP0_ORIGIN              = 0xe5,
  96
  97         /* flat tri/quad: cmd+color/v0/.../vN (16+16 YYYYXXXX) */
  98         GP0_TRI                         = PRIM_TRI,
  99         GP0_TRI_ST                      = PRIM_TRI | PRIM_ST,
 100         GP0_QUAD                        = PRIM_QUAD,
 101         GP0_QUAD_ST                     = PRIM_QUAD | PRIM_ST,
 102         /* textured tri/quad: cmd+color/v0/uv0+pal/v1/uv1+texpage/v2/uv2/.. */
 103         GP0_TRI_TEXMOD          = PRIM_TRI | PRIM_TEX,
 104         GP0_TRI_TEX                     = PRIM_TRI | PRIM_TEX | PRIM_NOMOD,
 105         GP0_TRI_ST_TEXMOD       = PRIM_TRI | PRIM_ST | PRIM_TEX,
 106         GP0_TRI_ST_TEX          = PRIM_TRI | PRIM_ST | PRIM_TEX | PRIM_NOMOD,
 107         GP0_QUAD_TEXMOD         = PRIM_QUAD | PRIM_TEX,
 108         GP0_QUAD_TEX            = PRIM_QUAD | PRIM_TEX | PRIM_NOMOD,
 109         GP0_QUAD_ST_TEXMOD      = PRIM_QUAD | PRIM_ST | PRIM_TEX,
 110         GP0_QUAD_ST_TEX         = PRIM_QUAD | PRIM_ST | PRIM_TEX | PRIM_NOMOD,
 111         /* gouraud tri/quad: cmd+color0/v0/c1/v1/.../cN/vN */
 112         GP0_GTRI                        = PRIM_TRI | PRIM_GOURAUD,
 113         GP0_GTRI_ST                     = PRIM_TRI | PRIM_GOURAUD | PRIM_ST,
 114         GP0_GQUAD                       = PRIM_QUAD | PRIM_GOURAUD,
 115         GP0_GQUAD_ST            = PRIM_QUAD | PRIM_GOURAUD | PRIM_ST,
 116         /* gouraud tex tri/quad: cmd+color0/v0/uv0+pal/c1/v1/uv1+texpage/c2/v2/uv2/... */
 117         GP0_GTRI_TEXMOD         = PRIM_TRI | PRIM_GOURAUD | PRIM_TEX,
 118         GP0_GTRI_ST_TEXMOD      = PRIM_TRI | PRIM_GOURAUD | PRIM_ST | PRIM_TEX,
 119         GP0_GQUAD_TEXMOD        = PRIM_QUAD | PRIM_GOURAUD | PRIM_TEX,
 120         GP0_GQUAD_ST_TEXMOD     = PRIM_QUAD | PRIM_GOURAUD | PRIM_ST | PRIM_TEX,
 121
 122         /* line/poly-line: cmd+color/v0/.../vN/PLINE_END(55555555h) */
 123         GP0_LINE                        = PRIM_LINE,
 124         GP0_LINE_ST                     = PRIM_LINE | PRIM_ST,
 125         GP0_PLINE                       = PRIM_PLINE,
 126         GP0_PLINE_ST            = PRIM_PLINE | PRIM_ST,
 127         /* line/poly-line: cmd+color0/v0/c1/v1/.../cN/vN/PLINE_END */
 128         GP0_GLINE                       = PRIM_LINE | PRIM_GOURAUD,
 129         GP0_GLINE_ST            = PRIM_LINE | PRIM_GOURAUD | PRIM_ST,
 130         GP0_GPLINE                      = PRIM_PLINE | PRIM_GOURAUD,
 131         GP0_GPLINE_ST           = PRIM_PLINE | PRIM_GOURAUD | PRIM_ST,
 132
 133         /* rect: cmd+col/pos/size(for variable rect) */
 134         GP0_RECT                        = PRIM_RECT,
 135         GP0_RECT_ST                     = PRIM_RECT | PRIM_ST,
 136         GP0_POINT                       = PRIM_POINT,
 137         GP0_POINT_ST            = PRIM_POINT | PRIM_ST,
 138         GP0_RECT8                       = PRIM_RECT8,
 139         GP0_RECT8_ST            = PRIM_RECT8 | PRIM_ST,
 140         GP0_RECT16                      = PRIM_RECT16,
 141         GP0_RECT16_ST           = PRIM_RECT16 | PRIM_ST,
 142         /* rect: cmd+col/pos/uv0+pal/size(for var rect), texpage in GP0(e1h) */
 143         GP0_RECT_TEXMOD         = PRIM_RECT | PRIM_TEX,
 144         GP0_RECT_TEX            = PRIM_RECT | PRIM_TEX | PRIM_NOMOD,
 145         GP0_RECT_ST_TEXMOD      = PRIM_RECT | PRIM_ST | PRIM_TEX,
 146         GP0_RECT_ST_TEX         = PRIM_RECT | PRIM_ST | PRIM_TEX | PRIM_NOMOD,
 147         /* ... TODO and the rest ... */
 148 };
 149
 150
 151 enum {
 152         TEXPG_BLEND_HALF        = 0,
 153         TEXPG_BLEND_ADD         = 0x0020,
 154         TEXPG_BLEND_SUB         = 0x0040,
 155         TEXPG_BLEND_QUART       = 0x0060,
 156         TEXPG_8BPP                      = 0x0080,
 157         TEXPG_15BPP                     = 0x0100,
 158         TEXPG_DRAWDISP          = 0x0200,
 159         TEXPG_DITHER            = 0x0400,
 160         TEXPG_NOTEX                     = 0x0800,
 161         TEXPG_XFLIP                     = 0x1000,
 162         TEXPG_YFLIP                     = 0x2000
 163 };
 164
 165 #endif  /* PSXREGS_H_ */