diff options
Diffstat (limited to 'firmware/drivers/audio/wm8751.c')
| -rw-r--r-- | firmware/drivers/audio/wm8751.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/firmware/drivers/audio/wm8751.c b/firmware/drivers/audio/wm8751.c index 6e37a91ed7..5eb90b0178 100644 --- a/firmware/drivers/audio/wm8751.c +++ b/firmware/drivers/audio/wm8751.c @@ -98,6 +98,50 @@ static int tone_tenthdb2hw(int value) return value; } +#if 0 +static int alc_tenthdb2hw(int value) +{ + /* -28.5dB - -6dB step 1.5dB - translate -285 - -60 step 15 + to 0 - 15 step 1 + */ + + value = 15 - (value + 60)/15; +} + + +static int alc_hldus2hw(unsigned int value) +{ + /* 0000 - 0us + * 0001 - 2670us + * 0010 - 5330us + * + * 1111 - 43691000us + */ + return 0; +} + +static int alc_dcyms2hw(int value) +{ + /* 0000 - 24ms + * 0001 - 48ms + * 0010 - 96ms + * + * 1010 or higher 24580ms + */ + return 0; +} + +static int alc_atkms2hw(int value) +{ + /* 0000 - 6ms + * 0001 - 12ms + * 0010 - 24ms + * + * 1010 or higher 6140ms + */ + return 0; +} +#endif #ifdef USE_ADAPTIVE_BASS static int adaptivebass2hw(int value) @@ -110,6 +154,14 @@ static int adaptivebass2hw(int value) #endif #if defined(HAVE_WM8750) +#if 0 +static int ngath_tenthdb2hw(int value) +{ + /* -76.5dB - -30dB in 1.5db steps -765 - -300 in 15 steps */ + value = 31 - (value + 300)/15; + return value; +} +#endif static int recvol2hw(int value) { /* convert tenth of dB of input volume (-172...300) to input register value */ @@ -317,6 +369,72 @@ void audiohw_set_depth_3d(int val) #endif #ifdef HAVE_RECORDING +#if 0 +void audiohw_set_ngath(int ngath, int type, bool enable) +{ + /* This function controls Noise gate function + * of the codec. This can only run in conjunction + * with ALC + */ + + if(enable) + wmcodec_write(NGAT, NGAT_NGG(type)|NGAT_NGTH(ngath)|NGAT_NGAT); + else + wmcodec_write(NGAT, NGAT_NGG(type)|NGAT_NGTH(ngath_tenthdb2hw(ngath))); +} + + +void audiohw_set_alc(int level, unsigned int hold, int decay, int attack, bool enable) +{ + /* level in thenth of dB -28.5dB - -6dB in 1.5dB steps + * hold time in us 0us - 43691000us + * decay time in ms 24ms - 24580ms + * attack time in ms 6ms - 6140ms + */ + + if(enable) + { + wmcodec_write(ALC1, ALC1_ALCSEL_STEREO|ALC1_MAXGAIN(0x07)| + ALC1_ALCL(alc_tenthdb2hw(level))); + wmcodec_write(ALC2, ALC2_ALCZ|ALC2_HLD(alc_hldus2hw(hold))); + wmcodec_write(ALC3, ALC3_DCY(alc_dcyms2hw(decay))| + ALC3_ATK(alc_atkms2hw(attack))); + } + else + { + wmcodec_write(ALC1, ALC1_ALCSEL_DISABLED|ALC1_MAXGAIN(0x07)|ALC1_ALCL(alc_tenthdb2hw(level))); + } +} + +void audiohw_set_alc(int level, unsigned int hold, int decay, int attack, bool enable) +{ + /* level in thenth of dB -28.5dB - -6dB in 1.5dB steps + * hold time in 15 steps 0ms,2.67ms,5.33ms,...,43691ms + * decay time in 10 steps 24ms,48ms,96ms,...,24580ms + * attack time in 10 steps 6ms,12ms,24ms,...,6140ms + */ + + if(enable) + { + wmcodec_write(ALC1, ALC1_ALCSEL_STEREO|ALC1_MAXGAIN(0x07)| + ALC1_ALCL(alc_tenthdb2hw(level))); + wmcodec_write(ALC2, ALC2_ALCZ|ALC2_HLD(hold)); + wmcodec_write(ALC3, ALC3_DCY(decay)| + ALC3_ATK(attack)); + } + else + { + wmcodec_write(ALC1, ALC1_ALCSEL_DISABLED|ALC1_MAXGAIN(0x07)| + ALC1_ALCL(alc_tenthdb2hw(level))); + } +} + +void audiohw_set_alc_level(int level) +{ + wmcodec_write(ALC1, ALC1_ALCSEL_STEREO|ALC1_MAXGAIN(0x07)| + ALC1_ALCL(alc_tenthdb2hw(level))); +} +#endif void audiohw_set_recsrc(int source, bool recording) { /* INPUT1 - FM radio |