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#ifndef __LG_XAA_H
#define __LG_XAA_H
/*
* XAA acceleration for CL-GD546x -- The Laugna family
*
* lg_xaa.h
*
* (c) 1996,1998 Corin Anderson.
* corina@the4cs.com
* Tukwila, WA
*
* This header file draws much from the file cir_blitLG.h in version 3.3.3
* of XFree86.
*/
/* This header file defines the necessary structures, constants, and
variables for using the bitBLT engine on a Laguna family graphics
accelerator. */
enum { /* Offsets into MMIO space for bitBLT regs */
STATUS = 0x0400,
OP0_opRDRAM = 0x0520,
OP1_opRDRAM = 0x0540,
OP2_opRDRAM = 0x0560,
OP0_opMRDRAM = 0x0524,
OP1_opMRDRAM = 0x0544,
OP2_opMRDRAM = 0x0564,
OP0_opSRAM = 0x0528,
OP1_opSRAM = 0x0548,
OP2_opSRAM = 0x0568,
OP1_opMSRAM = 0x054A,
OP2_opMSRAM = 0x056A,
DRAWDEF = 0x0584,
BLTDEF = 0x0586,
BLTEXT_EX = 0x0700,
MBLTEXT_EX = 0x0720,
MONOQW = 0x0588,
QFREE = 0x0404,
PATOFF = 0x052A,
HOSTDATA = 0x0800,
OP_opBGCOLOR = 0x05E4,
OP_opFGCOLOR = 0x05E0,
bltCONTROL = 0x0402,
BITMASK = 0x05E8
};
enum { HOSTDATASIZE = 2048 }; /* The HOSTDATA port is 2048 BYTES */
enum { /* OR these together to form a bitBLT mode */
HOST2SCR = 0x1120, /* CPU/Screen transfer modes */
SCR2HOST = 0x2010,
HOST2PAT = 0x1102,
HOST2SRAM2 = 0x6020, /* CPU to SRAM2 transfer */
SCR2SCR = 0x1110, /* Screen/Screen transfers */
COLORSRC = 0x0000, /* Source is color data */
MONOSRC = 0x0040, /* Source is mono data (color expansion) */
COLORTRANS = 0x0001, /* Transparent screen/screen transfer */
MONOTRANS = 0x0005, /* Transparent screen/screen color expansion */
COLORFILL = 0x0070, /* Solid color fill mode */
SRAM1SCR2SCR = 0x1180, /* Pattern fill, source from SRAM1 */
PAT2SCR = 0x1109, /* Pattern/Screen transfers */
COLORPAT = 0x0000, /* Pattern is color data */
MONOPAT = 0x0004, /* Pattern is mono data (color expansion) */
SRAM2PAT2SCR = 0x1108, /* SRAM2 is pattern source */
PATeqSRC = 0x0800, /* The Pattern and Source operands are the same */
/* Advice from Corey: don't ever try to use
this option! 8) There's a documented bug
with it on the '62, and, well, I have
empirical evidence that either the bug's
still around, even in the '64 and the '65.
It's a performance option, anyway, so not
using it should be okay. */
BLITUP = 0x8000 /* The blit is proceeding from bottom to top */
};
enum { /* Select transparency compare */
TRANSBG = 0x0100,
TRANSFG = 0x0300,
TRANSEQ = 0x0100,
TRANSNE = 0x0300,
TRANSNONE = 0x0000
};
#define LgREADY() ((memrb(STATUS) & 0x07) == 0x00)
#define LgSETROP(rop) memww(DRAWDEF,rop);
#define LgSETTRANSPARENCY(trans) \
memww(DRAWDEF,(trans) | (memrw(DRAWDEF) & 0x00FF));
#define LgSETMODE(mode) memww(BLTDEF,mode);
#define LgSETDSTXY(X, Y) memwl(OP0_opRDRAM, (((Y) << 16) | (X)));
#define LgSETSRCXY(X, Y) memwl(OP1_opRDRAM, (((Y) << 16) | (X)));
#define LgSETPATXY(X, Y) memwl(OP2_opRDRAM, (((Y) << 16) | (X)));
#define LgSETTRANSMASK(X, Y) LgSETPATXY(X, Y)
#define LgSETSRAMDST(offset) memww(OP0_opSRAM, offset);
/* was this a bug? it read OP2_opSRAM */
#define LgSETSRAM1OFFSET(offset) memww(OP1_opSRAM, offset);
#define LgSETSRAM2OFFSET(offset) memww(OP2_opSRAM, offset);
#define LgSETMSRAM1OFFSET(offset) memww(OP1_opMSRAM, offset);
#define LgSETMSRAM2OFFSET(offset) memww(OP2_opMSRAM, offset);
#define LgSETMDSTXY(X, Y) memwl(OP0_opMRDRAM, (((Y) << 16) | (X)));
#define LgSETMSRCXY(X, Y) memwl(OP1_opMRDRAM, (((Y) << 16) | (X)));
#define LgSETMPATXY(X, Y) memwl(OP2_opMRDRAM, (((Y) << 16) | (X)));
#define LgSETMTRANSMASK(X, Y) LgSETMPATXY(X, Y)
#define LgSETPHASE0(phase) memwl( OP0_opRDRAM, phase);
#define LgSETPHASE1(phase) memwl(OP1_opRDRAM, phase);
#define LgSETPHASE2(phase) memwl( OP2_opRDRAM, phase);
#define LgSETMPHASE0(phase) memwl(OP0_opMRDRAM, phase);
#define LgSETMPHASE1(phase) memwl(OP1_opMRDRAM, phase);
#define LgSETEXTENTS(width, height) \
memwl(BLTEXT_EX, (((height) << 16)|(width)));
#if 0
#define LgSETMEXTENTS(width, height) \
memwl(MBLTEXT_EX, (((height) << 16)|(width)));
#else
/* For monochrome (byte) blits, we need to set how many QWORDs of data
encompass the X extent. Write this piece of data into MONOQW. */
#define LgSETMEXTENTS(width, height) \
{ \
memww(MONOQW, ((width + 7) >> 3)); \
memwl(MBLTEXT_EX, (((height) << 16)|(width))); \
}
#define LgSETMEXTENTSNOMONOQW(width, height) \
memwl(MBLTEXT_EX, (((height) << 16)|(width)));
/*
memww(MBLTEXT_EX, height);
memww(MBLTEXT_EX + 2, width);
*/
#endif
#define LgHOSTDATAWRITE(data) memwl(HOSTDATA, data);
#define LgHOSTDATAREAD() (memrl(HOSTDATA))
#define LgSETBACKGROUND(color) memwl(OP_opBGCOLOR, color);
#define LgSETFOREGROUND(color) memwl(OP_opFGCOLOR, color);
#define LgSETPATOFF(xoff, yoff) memww(PATOFF, (((yoff) << 8) | (xoff)));
#define LgSETSWIZZLE() memww(bltCONTROL, memrw(bltCONTROL | 0x0400));
#define LgCLEARSWIZZLE() memww(bltCONTROL, memrw(bltCONTROL & ~0x0400));
#define LgSETBITMASK(m) memwl(BITMASK, m);
#endif /* __LG_XAA_H */
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