lg_xaa.h revision 63847c39 
1#ifndef __LG_XAA_H
2#define __LG_XAA_H
3
4/*
5 * XAA acceleration for CL-GD546x -- The Laugna family
6 *
7 * lg_xaa.h
8 *
9 * (c) 1996,1998 Corin Anderson.
10 *               corina@the4cs.com
11 *               Tukwila, WA
12 *
13 * This header file draws much from the file cir_blitLG.h in version 3.3.3
14 * of XFree86.
15 */
16
17/* This header file defines the necessary structures, contstants, and
18   variables for using the bitBLT engine on a Laguna family graphics
19   accelerator.  */
20
21
22enum {						/* Offsets into MMIO space for bitBLT regs */
23	STATUS			= 0x0400,
24	OP0_opRDRAM		= 0x0520,
25	OP1_opRDRAM		= 0x0540,
26	OP2_opRDRAM		= 0x0560,
27	OP0_opMRDRAM	= 0x0524,
28	OP1_opMRDRAM	= 0x0544,
29	OP2_opMRDRAM	= 0x0564,
30	OP0_opSRAM		= 0x0528,
31	OP1_opSRAM		= 0x0548,
32	OP2_opSRAM		= 0x0568,
33	OP1_opMSRAM		= 0x054A,
34	OP2_opMSRAM		= 0x056A,
35	DRAWDEF			= 0x0584,
36	BLTDEF			= 0x0586,
37	BLTEXT_EX		= 0x0700,
38	MBLTEXT_EX		= 0x0720,
39	MONOQW			= 0x0588,
40	QFREE			= 0x0404,
41	PATOFF			= 0x052A,
42	HOSTDATA		= 0x0800,
43	OP_opBGCOLOR	= 0x05E4,
44	OP_opFGCOLOR	= 0x05E0,
45	bltCONTROL		= 0x0402,
46	BITMASK			= 0x05E8
47};
48
49enum { HOSTDATASIZE = 2048 };	/* The HOSTDATA port is 2048 BYTES */
50
51enum {						/* OR these together to form a bitBLT mode */
52	HOST2SCR		= 0x1120,	/* CPU/Screen transfer modes */
53	SCR2HOST		= 0x2010,
54	HOST2PAT		= 0x1102,
55	HOST2SRAM2		= 0x6020,	/* CPU to SRAM2 transfer */
56
57	SCR2SCR			= 0x1110,	/* Screen/Screen transfers */
58	COLORSRC		= 0x0000,	/* Source is color data */
59	MONOSRC			= 0x0040,	/* Source is mono data (color expansion) */
60	COLORTRANS		= 0x0001,	/* Transparent screen/screen transfer */
61	MONOTRANS		= 0x0005,	/* Transparent screen/screen color expansion */
62	COLORFILL		= 0x0070,	/* Solid color fill mode */
63	SRAM1SCR2SCR	= 0x1180,	/* Pattern fill, source from SRAM1 */
64
65	PAT2SCR			= 0x1109,	/* Pattern/Screen transfers */
66	COLORPAT		= 0x0000,	/* Pattern is color data */
67	MONOPAT			= 0x0004,	/* Pattern is mono data (color expansion) */
68	SRAM2PAT2SCR	= 0x1108,	/* SRAM2 is pattern source */
69
70  PATeqSRC   = 0x0800,      /* The Pattern and Source operands are the same */
71								/* Advice from Corey:  don't ever try to use
72								   this option!  8)  There's a documented bug
73								   with it on the '62, and, well, I have
74								   empirical evidence that either the bug's
75								   still around, even in the '64 and the '65.
76								   It's a performance option, anyway, so not
77								   using it should be okay. */
78
79
80	BLITUP			= 0x8000	/* The blit is proceeding from bottom to top */
81};
82
83enum {						/* Select transparency compare */
84	TRANSBG			= 0x0100,
85	TRANSFG			= 0x0300,
86	TRANSEQ			= 0x0100,
87	TRANSNE			= 0x0300,
88	TRANSNONE		= 0x0000
89};
90
91#define LgREADY() ((memrb(STATUS) & 0x07) == 0x00)
92
93#define LgSETROP(rop)  memww(DRAWDEF,rop);
94
95#define LgSETTRANSPARENCY(trans) \
96  memww(DRAWDEF,(trans) | (memrw(DRAWDEF) & 0x00FF));
97
98#define LgSETMODE(mode)  memww(BLTDEF,mode);
99
100#define LgSETDSTXY(X, Y)  memwl(OP0_opRDRAM, (((Y) << 16) | (X)));
101
102#define LgSETSRCXY(X, Y)  memwl(OP1_opRDRAM, (((Y) << 16) | (X)));
103
104#define LgSETPATXY(X, Y)  memwl(OP2_opRDRAM, (((Y) << 16) | (X)));
105
106#define LgSETTRANSMASK(X, Y) LgSETPATXY(X, Y)
107
108#define LgSETSRAMDST(offset)  memww(OP0_opSRAM, offset);
109
110/* was this a bug? it read OP2_opSRAM */
111#define LgSETSRAM1OFFSET(offset)  memww(OP1_opSRAM, offset);
112
113#define LgSETSRAM2OFFSET(offset)  memww(OP2_opSRAM, offset);
114
115#define LgSETMSRAM1OFFSET(offset) memww(OP1_opMSRAM, offset);
116
117#define LgSETMSRAM2OFFSET(offset) memww(OP2_opMSRAM, offset);
118
119#define LgSETMDSTXY(X, Y)  memwl(OP0_opMRDRAM, (((Y) << 16) | (X)));
120
121#define LgSETMSRCXY(X, Y)  memwl(OP1_opMRDRAM, (((Y) << 16) | (X)));
122
123#define LgSETMPATXY(X, Y)  memwl(OP2_opMRDRAM, (((Y) << 16) | (X)));
124
125#define LgSETMTRANSMASK(X, Y) LgSETMPATXY(X, Y)
126
127#define LgSETPHASE0(phase)  memwl( OP0_opRDRAM, phase);
128
129#define LgSETPHASE1(phase)  memwl(OP1_opRDRAM, phase);
130
131#define LgSETPHASE2(phase)  memwl( OP2_opRDRAM, phase);
132
133#define LgSETMPHASE0(phase)  memwl(OP0_opMRDRAM, phase);
134
135#define LgSETMPHASE1(phase)  memwl(OP1_opMRDRAM, phase);
136
137#define LgSETEXTENTS(width, height)  \
138           memwl(BLTEXT_EX, (((height) << 16)|(width)));
139
140#if 0
141#define LgSETMEXTENTS(width, height)  \
142  memwl(MBLTEXT_EX, (((height) << 16)|(width)));
143#else
144/* For monochrome (byte) blits, we need to set how many QWORDs of data
145   encompass the X extent.  Write this piece of data into MONOQW. */
146#define LgSETMEXTENTS(width, height)  \
147	{ \
148    memww(MONOQW, ((width + 7) >> 3));  \
149    memwl(MBLTEXT_EX, (((height) << 16)|(width)));  \
150	}
151
152#define LgSETMEXTENTSNOMONOQW(width, height)  \
153  memwl(MBLTEXT_EX, (((height) << 16)|(width)));
154
155/*
156    memww(MBLTEXT_EX, height);
157    memww(MBLTEXT_EX + 2, width);
158 */
159#endif
160
161#define LgHOSTDATAWRITE(data)  memwl(HOSTDATA, data);
162
163#define LgHOSTDATAREAD()   (memrl(HOSTDATA))
164
165#define LgSETBACKGROUND(color)  memwl(OP_opBGCOLOR, color);
166
167#define LgSETFOREGROUND(color)   memwl(OP_opFGCOLOR, color);
168
169#define LgSETPATOFF(xoff, yoff)  memww(PATOFF, (((yoff) << 8) | (xoff)));
170
171#define LgSETSWIZZLE() memww(bltCONTROL, memrw(bltCONTROL | 0x0400));
172
173#define LgCLEARSWIZZLE() memww(bltCONTROL, memrw(bltCONTROL & ~0x0400));
174
175#define LgSETBITMASK(m) memwl(BITMASK, m);
176
177
178
179#endif  /* __LG_XAA_H */
180