VORTEX_SRC_U0
temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
hwwrite(card->mmio, VORTEX_SRC_U0 + (src << 2),