GLOBAL_CTRL_CHAN_EN
if ((sc->sc_initialized & GLOBAL_CTRL_CHAN_EN(chan)) == 0) {
sc->sc_initialized |= GLOBAL_CTRL_CHAN_EN(chan);
ps->ps_enabled = !!(ctrl & GLOBAL_CTRL_CHAN_EN(chan));
HSET4(sc, GLOBAL_CTRL, GLOBAL_CTRL_CHAN_EN(chan));
HCLR4(sc, GLOBAL_CTRL, GLOBAL_CTRL_CHAN_EN(chan));