- if (state->aud_input != CX25840_AUDIO_SERIAL) {
- /* Must turn off microcontroller in order to mute sound.
- * Not sure if this is the best method, but it does work.
- * If the microcontroller is running, then it will undo any
- * changes to the mute register. */
- if (mute) {
- /* disable microcontroller */
- cx25840_and_or(client, 0x803, ~0x10, 0x00);
- cx25840_write(client, 0x8d3, 0x1f);
- } else {
- /* enable microcontroller */
- cx25840_and_or(client, 0x803, ~0x10, 0x10);
- }
- } else {
- /* SRC1_MUTE_EN */
- cx25840_and_or(client, 0x8d3, ~0x2, mute ? 0x02 : 0x00);
+ if (mute && state->unmute_volume == -1) {
+ int vol = get_volume(client);
+
+ set_volume(client, 0);
+ state->unmute_volume = vol;
+ }
+ else if (!mute && state->unmute_volume != -1) {
+ int vol = state->unmute_volume;
+
+ state->unmute_volume = -1;
+ set_volume(client, vol);