SV_REC_GAIN_MASK
* SV_REC_GAIN_MASK) / AUDIO_MAX_GAIN;
reg &= ~SV_REC_GAIN_MASK;
reg &= ~SV_REC_GAIN_MASK;
reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL) & SV_REC_GAIN_MASK;
(((unsigned int)reg) * AUDIO_MAX_GAIN) / SV_REC_GAIN_MASK;