MPHASE_CAL_STATE_IDLE
pi->mphase_cal_phase_id = MPHASE_CAL_STATE_IDLE;
(pi->mphase_cal_phase_id > MPHASE_CAL_STATE_IDLE)
pi->mphase_cal_phase_id = MPHASE_CAL_STATE_IDLE;
MPHASE_CAL_STATE_IDLE) {
if ((pi->mphase_cal_phase_id == MPHASE_CAL_STATE_IDLE) ||
mphase = (pi->mphase_cal_phase_id != MPHASE_CAL_STATE_IDLE);