1992/0418/pc/vga.c (diff list | history)

1992/0418/sys/src/9/pc/vga.c:59,65 – 1992/0423/sys/src/9/pc/vga.c:59,65 (short | long | prev | next)
1991/1113		typedef struct VGAmode VGAmode; struct VGAmode { uchar general[4];
1992/0423		uchar general[2];
1991/1113		uchar sequencer[5]; uchar crt[0x19]; uchar graphics[9];
1992/0418/sys/src/9/pc/vga.c:73,79 – 1992/0423/sys/src/9/pc/vga.c:73,79
1991/1113		VGAmode mode12 = { /* general */ 0xe3, 0x00, 0x70, 0x04,
1992/0423		0xe3, 0x00, /* 0x70, 0x04, these are read-only */
1991/1113		/* sequence */ 0x03, 0x01, 0x0f, 0x00, 0x06, /* crt */
1992/0418/sys/src/9/pc/vga.c:96,102 – 1992/0423/sys/src/9/pc/vga.c:96,102
1992/0414		VGAmode mode12 = { /* general */ 0xe7, 0x00, 0x70, 0x04,
1992/0423		0xe7, 0x00, /* 0x70, 0x04, these are read-only */
1992/0414		/* sequence */ 0x03, 0x01, 0x0f, 0x00, 0x06, /* crt */
1992/0418/sys/src/9/pc/vga.c:109,115 – 1992/0423/sys/src/9/pc/vga.c:109,115
1992/0414		0xff, /* attribute */
1992/0418		0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0d, 0x0f,
1992/0423		0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x3f,
1992/0418		0x01, 0x10, 0x0f, 0x00, 0x00,
1992/0414		}; #endif
1992/0418/sys/src/9/pc/vga.c:119,125 – 1992/0423/sys/src/9/pc/vga.c:119,124
1991/0724		void
1991/1113		genout(int reg, int val) {
1992/0418		delay(TESTDELAY);
1991/1113		if(reg == 0) outb(EMISCW, val); else if (reg == 1)
1992/0418/sys/src/9/pc/vga.c:131,137 – 1992/0423/sys/src/9/pc/vga.c:130,135
1992/0414		/* * needed or the screen goes blank on an ultra VGA card */
1992/0418		delay(TESTDELAY);
1991/0724		outb(SRX, reg); outb(SR, val); }
1992/0418/sys/src/9/pc/vga.c:147,161 – 1992/0423/sys/src/9/pc/vga.c:145,165
1992/0414		/* * if this print is missing, we are left with a blank white screen. */ print("arout %d %2x\n", reg, val);
1991/0727		inb(0x3DA);
1991/1211		outb(ARW, reg | 0x20); outb(ARW, val);
1992/0423		if (reg <= 0xf) { outb(ARW, reg | 0x0); outb(ARW, val); inb(0x3DA); outb(ARW, reg | 0x20); } else { outb(ARW, reg | 0x20); outb(ARW, val); }
1991/0727		}
1992/0423
1991/0727		void crout(int reg, int val) {
1992/0418		delay(TESTDELAY); /* needed for 16bit VGA path on Ultra SVGA */
1991/0727		outb(CRX, reg); outb(CR, val); }
1992/0418/sys/src/9/pc/vga.c:203,209 – 1992/0423/sys/src/9/pc/vga.c:207,251
1991/1113		arout(i, v->attribute[i]);
1991/0928		}
1992/0423		#ifdef VGATROUBLE
1991/0727		void
1992/0423		dumpmodes(VGAmode *v) { int i; print("general registers: %02x %02x %02x %02x\n", inb(0x3cc), inb(0x3ca), inb(0x3c2), inb(0x3da)); print("sequence registers: "); for(i = 0; i < sizeof(v->sequencer); i++) { outb(SRX, i); print(" %02x", inb(SR)); } print("\nCRT registers: "); for(i = 0; i < sizeof(v->crt); i++) { outb(CRX, i); print(" %02x", inb(CR)); } print("\nGraphics registers: "); for(i = 0; i < sizeof(v->graphics); i++) { outb(GRX, i); print(" %02x", inb(GR)); } print("\nAttribute registers: "); for(i = 0; i < sizeof(v->attribute); i++) { inb(0x3DA); outb(ARW, i | 0x20); print(" %02x", inb(ARR)); } print("\nPEL Mask Register = %02x\n\n", inb(0x3c6)&0xff); } #endif void
1991/0730		screeninit(void)
1991/0723		{
1991/0727		int i, j, k;
1992/0418/sys/src/9/pc/vga.c:226,232 – 1992/0423/sys/src/9/pc/vga.c:268,273
1991/0730		out.pos.x = MINX; out.pos.y = 0; out.bwid = defont0.info[' '].width;
1992/0418		print("PEL Mask Register = %02x\n", inb(0x3c6)&0xff);
1991/0723		}
1991/0727
1991/0730		void