Beispiel #1
0
/*
 * Load a subset of the current (new) colormap into the Brooktree DAC.
 */
static void
cgeightloadcmap(struct cgeight_softc *sc, int start, int ncolors)
{
	volatile struct bt_regs *bt;
	u_int *ip;
	int count;

	ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)];	/* start/4 * 3 */
	count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
	bt = &sc->sc_fbc->fbc_dac;
	bt->bt_addr = BT_D4M4(start);
	while (--count >= 0)
		bt->bt_cmap = *ip++;
}
Beispiel #2
0
void
cgthree_loadcmap(struct cgthree_softc *sc, u_int start, u_int ncolors)
{
	u_int cstart;
	int count;

	cstart = BT_D4M3(start);
	count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
	BT_WRITE(sc, BT_ADDR, BT_D4M4(start));
	while (--count >= 0) {
		BT_WRITE(sc, BT_CMAP, sc->sc_cmap.cm_chip[cstart]);
		cstart++;
	}
}