2001/0527/pc/devvga.c (diff list | history)

2001/0503/sys/src/9/pc/devvga.c:17,30 – 2001/0527/sys/src/9/pc/devvga.c:17,27 (short | long | prev | next)
1997/1101		enum { Qdir, Qvgactl,
2001/0426		Qvgaovl, Qvgaovlctl,
1994/0624		};
1997/1101		static Dirtab vgadir[] = {
2001/0426		"vgactl", { Qvgactl, 0 }, 0, 0660, "vgaovl", { Qvgaovl, 0 }, 0, 0660, "vgaovlctl", { Qvgaovlctl, 0 }, 0, 0660,
2001/0527		".", { Qdir, 0, QTDIR }, 0, 0550, "vgactl", { Qvgactl, 0 }, 0, 0660,
1992/1119		};
1992/0527
1997/0327		static void
2001/0503/sys/src/9/pc/devvga.c:46,94 – 2001/0527/sys/src/9/pc/devvga.c:43,69
1997/0327		return devattach('v', spec);
1992/0527		} int
1997/1101		vgawalk(Chan* c, char* name)
2001/0527		Walkqid* vgawalk(Chan* c, Chan *nc, char** name, int nname)
1992/0527		{
1997/0327		return devwalk(c, name, vgadir, nelem(vgadir), devgen);
2001/0527		return devwalk(c, nc, name, nname, vgadir, nelem(vgadir), devgen);
1992/0527		}
1997/0327		static void
1997/1101		vgastat(Chan* c, char* dp)
2001/0527		static int vgastat(Chan* c, uchar* dp, int n)
1992/0527		{
1997/0327		devstat(c, dp, vgadir, nelem(vgadir), devgen);
2001/0527		return devstat(c, dp, n, vgadir, nelem(vgadir), devgen);
1992/0527		}
1997/0327		static Chan*
1997/1101		vgaopen(Chan* c, int omode)
1992/0527		{
2001/0501		VGAscr *scr; static char *openctl = "openctl\n";                  scr = &vgascreen[0]; if ((c->qid.path & ~CHDIR) == Qvgaovlctl) { if (scr->dev->ovlctl) scr->dev->ovlctl(scr, c, openctl, strlen(openctl)); else error(Enonexist); }
1997/0327		return devopen(c, omode, vgadir, nelem(vgadir), devgen);
1992/0527		}
1997/0327		static void
2001/0501		vgaclose(Chan* c)
2001/0427		{ VGAscr *scr;
2001/0501		static char *closectl = "closectl\n";
2001/0427		scr = &vgascreen[0];
2001/0501		if ((c->qid.path & ~CHDIR) == Qvgaovlctl) {
2001/0503		if (scr->dev->ovlctl){ if(waserror()) return;
2001/0501		scr->dev->ovlctl(scr, c, closectl, strlen(closectl));
2001/0503		poperror(); }
2001/0427		}
2001/0527		vgaclose(Chan*) {
1992/0527		}
1999/0714		static void
2001/0503/sys/src/9/pc/devvga.c:114,120 – 2001/0527/sys/src/9/pc/devvga.c:89,95
1998/0319		ulong offset = off;
2000/0330		char chbuf[30];
1992/0528
1997/1101		switch(c->qid.path & ~CHDIR){
2001/0527		switch((ulong)c->qid.path){
1997/1101
1992/0527		case Qdir:
1997/1101		return devdirread(c, a, n, vgadir, nelem(vgadir), devgen);
2001/0503/sys/src/9/pc/devvga.c:157,167 – 2001/0527/sys/src/9/pc/devvga.c:132,137
1997/1101		return n;
2001/0426		case Qvgaovl: case Qvgaovlctl: error(Ebadusefd); break;
1997/1101		default: error(Egreg); break;
2001/0503/sys/src/9/pc/devvga.c:368,383 – 2001/0527/sys/src/9/pc/devvga.c:338,350
1994/0624		error(Ebadarg); }
2001/0426		char Enooverlay[] = "No overlay support";
1997/0327		static long
1998/0319		vgawrite(Chan* c, void* a, long n, vlong off)
1992/0527		{
1997/1101		char *p;
1998/0319		ulong offset = off;
2001/0426		VGAscr *scr;
1992/0528
1997/1101		switch(c->qid.path & ~CHDIR){
2001/0527		switch((ulong)c->qid.path){
1997/1101
1992/0527		case Qdir: error(Eperm);
2001/0503/sys/src/9/pc/devvga.c:397,419 – 2001/0527/sys/src/9/pc/devvga.c:364,369
1997/1101		free(p);
1992/0603		return n;
2001/0426		case Qvgaovl: scr = &vgascreen[0];
2001/0428		if (scr->dev->ovlwrite == nil) { error(Enooverlay); break; } return scr->dev->ovlwrite(scr, a, n, off);
2001/0426		case Qvgaovlctl: scr = &vgascreen[0]; if (scr->dev->ovlctl == nil) { error(Enooverlay); break; }
2001/0501		scr->dev->ovlctl(scr, c, a, n); return n;
1997/1101		default: error(Egreg); break;
2001/0503/sys/src/9/pc/devvga.c:429,435 – 2001/0527/sys/src/9/pc/devvga.c:379,384
1997/0327		vgareset,
1997/1101		devinit,
1997/0327		vgaattach, devclone, vgawalk, vgastat, vgaopen,