diff options
| -rw-r--r-- | firmware/export/imx233-codec.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/firmware/export/imx233-codec.h b/firmware/export/imx233-codec.h index 755e5ad..6c329cc 100644 --- a/firmware/export/imx233-codec.h +++ b/firmware/export/imx233-codec.h @@ -21,11 +21,16 @@ #ifndef __IMX233_CODEC_H_ #define __IMX233_CODEC_H_ +/* i.MX233 can boost up to 6dB in DAC mode and 12dB in line mode. Since mic/line + * already have adjustable gain, keep lowest of both. With chained DAC volume + * and headphone volume, the i.MX233 can achieve < -100dB but stay at -100dB. */ #define VOLUME_MIN -1000 -#define VOLUME_MAX -5 +#define VOLUME_MAX 60 -#define AUDIOHW_CAPS DEPTH_3D_CAP +#define AUDIOHW_CAPS (DEPTH_3D_CAP | BASS_CAP | TREBLE_CAP) -void audiohw_set_volume(int v); +/* Work with half dB since the i.MX233 doesn't have a better resolution */ +int tenthdb2master(int tdb); +void audiohw_set_headphone_vol(int vol_l, int vol_r); #endif /* __IMX233_CODEC_H_ */ |