1999/1005/pc/devvga.c (diff list | history)

1999/0714/sys/src/9/pc/devvga.c:15,30 – 1999/1005/sys/src/9/pc/devvga.c:15,24 (short | long | prev | next)
1995/0406
1997/1101		enum { Qdir, Qvgaiob, Qvgaiow, Qvgaiol, Qvgactl,
1994/0624		};
1997/1101		static Dirtab vgadir[] = { "vgaiob", { Qvgaiob, 0 }, 0, 0660, "vgaiow", { Qvgaiow, 0 }, 0, 0660, "vgaiol", { Qvgaiol, 0 }, 0, 0660, "vgactl", { Qvgactl, 0 }, 0, 0660,
1992/1119		};
1992/0527
1999/0714/sys/src/9/pc/devvga.c:87,96 – 1999/1005/sys/src/9/pc/devvga.c:81,88
1997/0327		static long
1998/0319		vgaread(Chan* c, void* a, long n, vlong off)
1992/0527		{
1997/1101		int len, port;
1999/1005		int len;
1997/1101		char *p, *s;
1993/1116		ushort *sp;
1994/0603		ulong *lp;
1997/1101		VGAscr *scr;
1998/0319		ulong offset = off;
1992/0528
1999/0714/sys/src/9/pc/devvga.c:115,121 – 1999/1005/sys/src/9/pc/devvga.c:107,113
1997/1101		if(scr->gscreen) len += snprint(p+len, READSTR-len, "size: %dx%dx%d\n", scr->gscreen->r.max.x, scr->gscreen->r.max.y, 1<<scr->gscreen->ldepth);
1999/1005		scr->gscreen->depth);
1997/1101		if(scr->cur) s = scr->cur->name; else
1999/0714/sys/src/9/pc/devvga.c:129,161 – 1999/1005/sys/src/9/pc/devvga.c:121,126
1997/1101		return n;
1994/0624		case Qvgaiob: port = offset;
1999/0714		checkport(offset, offset+n);
1997/1101		for(p = a; port < offset+n; port++) *p++ = inb(port);
1992/0528		return n;
1997/1101
1994/0624		case Qvgaiow:
1997/1101		if((n & 0x01) || (offset & 0x01))
1993/1116		error(Ebadarg);
1999/0714		checkport(offset, offset+n+1);
1993/1116		n /= 2;
1997/1101		sp = a; for(port = offset; port < offset+n; port += 2)
1993/1116		*sp++ = ins(port); return n*2;
1997/1101
1994/0624		case Qvgaiol:
1997/1101		if((n & 0x03) || (offset & 0x03))
1994/0603		error(Ebadarg);
1999/0714		checkport(offset, offset+n+3);
1994/0603		n /= 4;
1997/1101		lp = a; for(port = offset; port < offset+n; port += 4)
1994/0603		*lp++ = inl(port); return n*4;
1997/1101		default: error(Egreg); break;
1999/0714/sys/src/9/pc/devvga.c:168,180 – 1999/1005/sys/src/9/pc/devvga.c:133,147
1997/1101		vgactl(char* a)
1994/0624		{
1997/1101		int align, i, n, size, x, y, z; char *field[4], *p;
1999/1005		char *chanstr, *field[6], *p; ulong chan;
1997/1101		VGAscr *scr; extern VGAdev *vgadev[]; extern VGAcur *vgacur[];
1999/1005		Rectangle r;
1994/0624
1997/1101		n = parsefields(a, field, 4, " ");
1995/0406		if(n < 2)
1999/1005		n = parsefields(a, field, nelem(field), " "); if(n < 1)
1994/0624		error(Ebadarg);
1997/1101		scr = &vgascreen[0];
1999/0714/sys/src/9/pc/devvga.c:181,186 – 1999/1005/sys/src/9/pc/devvga.c:148,158
1997/1101		if(strcmp(field[0], "hwgc") == 0){
1995/0406		if(n < 2) error(Ebadarg);
1999/1005		/* BUG: drawinit should become a different message rather than piggybacking */ if(scr && scr->dev && scr->dev->drawinit) scr->dev->drawinit(scr);
1994/0624		if(strcmp(field[1], "off") == 0){
1997/1101		lock(&cursor); if(scr->cur){
1999/0714/sys/src/9/pc/devvga.c:221,227 – 1999/1005/sys/src/9/pc/devvga.c:193,199
1994/0624		} } else if(strcmp(field[0], "size") == 0){
1995/0406		if(n < 2)
1999/1005		if(n < 3)
1995/0406		error(Ebadarg);
1997/1101		x = strtoul(field[1], &p, 0);
1995/0206		if(x == 0 || x > 2048)
1999/0714/sys/src/9/pc/devvga.c:235,257 – 1999/1005/sys/src/9/pc/devvga.c:207,273
1997/1101		if(*p) p++;
1994/0624
1997/1101		switch(strtoul(p, &p, 0)){
1995/0206		case 8:
1997/1101		z = 3; break;
1999/1005		z = strtoul(p, &p, 0);
1997/1101
1995/0206		default:
1995/0207		z = 0;
1994/0624		error(Ebadarg);
1995/0206		}
1999/1005		chanstr = field[2]; if((chan = strtochan(chanstr)) == 0) error("bad channel");
1994/0624
1999/1005		if(chantodepth(chan) != z) error("depth, channel do not match");
1995/0206		cursoroff(1);
1997/1101		if(screensize(x, y, z))
1999/1005		deletescreenimage(); if(screensize(x, y, z, chan))
1997/1101		error(Egreg); vgascreenwin(scr);
1994/0624		cursoron(1); return; }
1999/1005		else if(strcmp(field[0], "actualsize") == 0){ if(scr->gscreen == nil) error("set the screen size first"); if(n < 2) error(Ebadarg); x = strtoul(field[1], &p, 0); if(x == 0 || x > 2048) error(Ebadarg); if(*p) p++; y = strtoul(p, nil, 0); if(y == 0 || y > 2048) error(Ebadarg); if(x > scr->gscreen->r.max.x || y > scr->gscreen->r.max.y) error("physical screen bigger than virtual"); r = Rect(0,0,x,y); if(!eqrect(r, scr->gscreen->r)){ if(scr->cur == nil || scr->cur->doespanning == 0) error("virtual screen not supported"); } physgscreenr = r; return; } else if(strcmp(field[0], "palettedepth") == 0){ if(n < 2) error(Ebadarg); x = strtoul(field[1], &p, 0); if(x != 8 && x != 6) error(Ebadarg); scr->palettedepth = x; return; } else if(strcmp(field[0], "drawinit") == 0){ if(scr && scr->dev && scr->dev->drawinit) scr->dev->drawinit(scr); return; }
1995/0406		else if(strcmp(field[0], "linear") == 0){ if(n < 2) error(Ebadarg);
1999/0714/sys/src/9/pc/devvga.c:265,270 – 1999/1005/sys/src/9/pc/devvga.c:281,304
1995/0406		error("not enough free address space"); return; }
1999/1005		/* else if(strcmp(field[0], "memset") == 0){ if(n < 4) error(Ebadarg); memset((void*)strtoul(field[1], 0, 0), atoi(field[2]), atoi(field[3])); return; } */ else if(strcmp(field[0], "blank") == 0){ if(n < 2) error(Ebadarg); drawblankscreen(atoi(field[1])); return; } else if(strcmp(field[0], "hwacceloff") == 0){ scr->fill = nil; scr->scroll = nil; return; }
1995/0406
1994/0624		error(Ebadarg); }
1999/0714/sys/src/9/pc/devvga.c:272,281 – 1999/1005/sys/src/9/pc/devvga.c:306,312
1997/0327		static long
1998/0319		vgawrite(Chan* c, void* a, long n, vlong off)
1992/0527		{
1994/0624		int port;
1997/1101		char *p;
1993/1116		ushort *sp;
1994/0603		ulong *lp;
1998/0319		ulong offset = off;
1992/0528
1997/1101		switch(c->qid.path & ~CHDIR){
1999/0714/sys/src/9/pc/devvga.c:297,329 – 1999/1005/sys/src/9/pc/devvga.c:328,333
1997/1101		poperror(); free(p);
1992/0603		return n;
1997/1101
1994/0624		case Qvgaiob:
1997/1101		p = a;
1999/0714		checkport(offset, offset+n);
1997/1101		for(port = offset; port < offset+n; port++) outb(port, *p++);
1992/0604		return n;
1997/1101
1994/0624		case Qvgaiow:
1993/1116		if((n & 01) || (offset & 01)) error(Ebadarg);
1999/0714		checkport(offset, offset+n+1);
1993/1116		n /= 2;
1997/1101		sp = a; for(port = offset; port < offset+n; port += 2)
1993/1116		outs(port, *sp++); return n*2;
1997/1101
1994/0624		case Qvgaiol:
1997/1101		if((n & 0x03) || (offset & 0x03))
1994/0603		error(Ebadarg);
1999/0714		checkport(offset, offset+n+3);
1994/0603		n /= 4;
1997/1101		lp = a; for(port = offset; port < offset+n; port += 4)
1994/0603		outl(port, *lp++); return n*4;
1997/1101		default: error(Egreg);