CS4231_PLAYBACK_PIO
CS4231_PLAYBACK_PIO |
if (chip->image[CS4231_IFACE_CTRL] & (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO);
CS4231_PLAYBACK_PIO |
(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
CS4231_PLAYBACK_PIO);