Other Parts Discussed in Thread: TWL6040
Hi,
We are working on OMAP4430 project ,we need to know how to configure Audio Volume level soft stepping for different profiles(Headset,earphone,etc).
We found below code in /kernel/sound/soc/codecs/twl6040.c file
/* * MICATT volume control: * from -6 to 0 dB in 6 dB steps */ static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
/* * MICGAIN volume control: * from 6 to 30 dB in 6 dB steps */ static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
/* * AFMGAIN volume control: * from -18 to 24 dB in 6 dB steps */ static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
/* * HSGAIN volume control: * from -30 to 0 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
/* * HFGAIN volume control: * from -52 to 6 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
/* * EPGAIN volume control: * from -24 to 6 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
/* * MICGAIN volume control: * from 6 to 30 dB in 6 dB steps */ static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
/* * AFMGAIN volume control: * from -18 to 24 dB in 6 dB steps */ static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
/* * HSGAIN volume control: * from -30 to 0 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
/* * HFGAIN volume control: * from -52 to 6 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
/* * EPGAIN volume control: * from -24 to 6 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
How to configure these volume controls to make it work for soft stepping?
Thanks,
Gaurav
