1998/0508/pc/vgamach64xx.c (diff list | history)

1998/0507/sys/src/9/pc/vgamach64xx.c:12,18 – 1998/0508/sys/src/9/pc/vgamach64xx.c:12,18 (short | long | prev | next)
Add support for more cards. rsc Fri Mar 4 12:44:25 2005
1998/0507		#include "screen.h" /* * ATI Mach64.
1998/0508		* ATI Mach64(CT|ET|GP|GT|GU|VT|VU).
1998/0507		*/ static ushort mach64xxdid[] = { ('C'<<8)|'T',
1998/0507/sys/src/9/pc/vgamach64xx.c:35,46 – 1998/0508/sys/src/9/pc/vgamach64xx.c:35,44
1998/0507		return nil; for(did = mach64xxdid; *did; did++){ if(*did == p->did) break;
1998/0508		return p;
1998/0507		} if(*did == 0) return nil; return p;
1998/0508		return nil;
1998/0507		} static void
1998/0507/sys/src/9/pc/vgamach64xx.c:53,60 – 1998/0508/sys/src/9/pc/vgamach64xx.c:51,67
1998/0507		*/ if(scr->io) return; if(p = mach64xxpci()) scr->io = p->mem[1].bar & ~0x01;
1998/0508		if(p = mach64xxpci()){ /* * The CT doesn't always have the I/O base address * in the PCI base registers. There is a way to find * it via the vendor-specific PCI config space but * this will do for now. */ scr->io = p->mem[1].bar & ~0x03; if(scr->io == 0 && p->did == ('C'<<8)|'T') scr->io = 0x2EC; }
1998/0507		} static ulong
1998/0507/sys/src/9/pc/vgamach64xx.c:89,114 – 1998/0508/sys/src/9/pc/vgamach64xx.c:96,137
1998/0507		return aperture; } enum { /* I/O select */ CurClr0 = 0x18, CurClr1 = 0x19, CurOffset = 0x1a, CurHVposn = 0x1b, CurHVoff = 0x1c,
1998/0508		enum { /* MM offset */
1998/0507		GenTestCntl = 0x34,
1998/0508		CurClr0 = 0x0B, /* I/O Select */ CurClr1 = 0x0C, CurOffset = 0x0D, CurHVposn = 0x0E, CurHVoff = 0x0F, GenTestCntl = 0x19,
1998/0507		};
1998/0508		static uchar mmoffset[] = { [CurClr0] 0x18, [CurClr1] 0x19, [CurOffset] 0x1a, [CurHVposn] 0x1b, [CurHVoff] 0x1c, [GenTestCntl] 0x34, };
1998/0507		static ulong ior32(VGAscr* scr, int r) { return inl((r<<2)+scr->io);
1998/0508		if(scr->io == 0x2EC || scr->io == 0x1C8) return inl((r<<10)+scr->io); return inl((mmoffset[r]<<2)+scr->io);
1998/0507		} static void iow32(VGAscr* scr, int r, ulong l) { outl(((r)<<2)+scr->io, l);
1998/0508		if(scr->io == 0x2EC || scr->io == 0x1C8) outl(((r)<<10)+scr->io, l); else outl((mmoffset[r]<<2)+scr->io, l);
1998/0507		} static void