1997/0717/pc/vgaclgd542x.c (diff list | history)

1997/0716/sys/src/9/pc/vgaclgd542x.c:3,8 – 1997/0717/sys/src/9/pc/vgaclgd542x.c:3,9 (short | long | prev | next)
1995/02021		#include "mem.h" #include "dat.h" #include "fns.h"
1997/0717		#include "io.h"
1995/02021		#include "../port/error.h" #include <libg.h>
1997/0716/sys/src/9/pc/vgaclgd542x.c:23,28 – 1997/0717/sys/src/9/pc/vgaclgd542x.c:24,67
1997/0327		unlock(&clgd542xlock);
1995/02021		}
1997/0717		static int clgd542xlinear(ulong* mem, ulong* size, ulong* align) { ulong baseaddr; static Pcidev *p; if((*size && *size < 16*MB) || (*align && (*align & (16*MB-1)))) return 0; *mem = 0; /* * This obviously isn't good enough on a system with * more than one PCI card from Cirrus. */ if(p == 0 && (p = pcimatch(p, 0x1013, 0)) == 0) return 0; switch(p->did){ case 0xA0: case 0xA8: case 0xAC: break; default: return 0; } if((baseaddr = upamalloc(0, *size, *align)) == 0) return 0; *mem = baseaddr; baseaddr = PADDR(baseaddr); pcicfgw32(p, PciBAR0, baseaddr); return *mem; }
1997/0716		static void disable(void) {
1997/0716/sys/src/9/pc/vgaclgd542x.c:38,43 – 1997/0717/sys/src/9/pc/vgaclgd542x.c:77,83
1997/0716		enable(void) { uchar sr12;
1997/0717		int mem, x;
1997/0716		/* * Disable the cursor.
1997/0716/sys/src/9/pc/vgaclgd542x.c:54,85 – 1997/0717/sys/src/9/pc/vgaclgd542x.c:94,138
1997/0716		setcolor(0x0F, Pblack<<(32-6), Pblack<<(32-6), Pblack<<(32-6)); vgaxo(Seqx, 0x12, sr12); /* * Memory size. The BIOS leaves this in Seq0A, bits 4 and 3. * See Technical Reference Manual Appendix E1, Section 1.3.2. * * The storage area for the 64x64 cursors is the last 16Kb of * display memory. */ switch((vgaxi(Seqx, 0x0A)>>3) & 0x03){
1997/0717		mem = 0; switch(vgaxi(Crtx, 0x27) & ~0x03){
1997/0716		case 0: storage = (256-16)*1024;
1997/0717		case 0x88: /* CL-GD5420 */ case 0x8C: /* CL-GD5422 */ case 0x94: /* CL-GD5424 */ case 0x80: /* CL-GD5425 */ case 0x90: /* CL-GD5426 */ case 0x98: /* CL-GD5427 */ case 0x9C: /* CL-GD5429 */ /* * The BIOS leaves the memory size in Seq0A, bits 4 and 3. * See Technical Reference Manual Appendix E1, Section 1.3.2. * * The storage area for the 64x64 cursors is the last 16Kb of * display memory. */ mem = (vgaxi(Seqx, 0x0A)>>3) & 0x03;
1997/0716		break; case 1: storage = (512-16)*1024;
1997/0717		case 0xA0: /* CL-GD5430 */ case 0xA8: /* CL-GD5434 */ case 0xAC: /* CL-GD5436 */ /* * Attempt to intuit the memory size from the DRAM control * register. Minimum is 512KB. * If DRAM bank switching is on then there's double. */ x = vgaxi(Seqx, 0x0F); mem = (x>>3) & 0x03; if(x & 0x80) mem++;
1997/0716		break; case 2: storage = (1024-16)*1024;
1997/0717		default: /* uh, ah dunno */
1997/0716		break;                  case 3: storage = (2048-16)*1024; break; }
1997/0717		storage = ((256<<mem)-16)*1024;
1997/0716		/* * Set the current cursor to index 0 * and turn the 64x64 cursor on.
1997/0716/sys/src/9/pc/vgaclgd542x.c:107,113 – 1997/0717/sys/src/9/pc/vgaclgd542x.c:160,168
1997/0716		vgaxo(Grx, 0x09, (storage>>16)<<4); p = ((uchar*)gscreen.base) + (storage & 0xFFFF); } p += index*1024;
1997/0717		// p += index*1024; memset(p, 0xFF, 16*1024); return;
1997/0716		for(y = yo; y < 16; y++){ p0 = c->clr[2*y];
1997/0716/sys/src/9/pc/vgaclgd542x.c:225,230 – 1997/0717/sys/src/9/pc/vgaclgd542x.c:280,286
1995/02021		static Vgac clgd542x = { "clgd542x", clgd542xpage,
1997/0717		clgd542xlinear,
1995/02021		0, };