diff options
| author | Solomon Peachy <pizza@shaftnet.org> | 2018-09-05 11:27:27 -0400 |
|---|---|---|
| committer | Solomon Peachy <pizza@shaftnet.org> | 2018-09-20 18:59:19 -0400 |
| commit | 8edf4052c78992a269e00d78a2cb82ed73f38358 (patch) | |
| tree | def866c77ae3c8b654426f342c27458b95cbca9b /firmware/target | |
| parent | 10208977947aa1471b065789b5eb08313ccae1d4 (diff) | |
jz7460: Silence codec when changing playback frequency/mode
Silences some annoying clicks.
Change-Id: I3d32d4b33c0ccc61877e10f5af97fe05084d66e5
Diffstat (limited to 'firmware/target')
| -rw-r--r-- | firmware/target/mips/ingenic_jz47xx/codec-jz4760.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/firmware/target/mips/ingenic_jz47xx/codec-jz4760.c b/firmware/target/mips/ingenic_jz47xx/codec-jz4760.c index f25dc70eb4..09d4858b34 100644 --- a/firmware/target/mips/ingenic_jz47xx/codec-jz4760.c +++ b/firmware/target/mips/ingenic_jz47xx/codec-jz4760.c @@ -142,8 +142,11 @@ static int vol_tenthdb2hw(const int tdb) void audiohw_set_volume(int vol_l, int vol_r) { + uint8_t val = cs4398_read_reg(CS4398_REG_MISC) &~ CS4398_FREEZE; + cs4398_write_reg(CS4398_REG_MISC, val | CS4398_FREEZE); cs4398_write_reg(CS4398_REG_VOL_A, vol_tenthdb2hw(vol_l)); cs4398_write_reg(CS4398_REG_VOL_B, vol_tenthdb2hw(vol_r)); + cs4398_write_reg(CS4398_REG_MISC, val); } void audiohw_set_lineout_volume(int vol_l, int vol_r) @@ -159,8 +162,6 @@ void audiohw_set_lineout_volume(int vol_l, int vol_r) void audiohw_set_filter_roll_off(int value) { - /* 0 = fast (sharp); - 1 = slow */ if (value == 0) { cs4398_write_reg(CS4398_REG_RAMPFILT, cs4398_read_reg(CS4398_REG_RAMPFILT) & ~CS4398_FILT_SEL); } else { @@ -252,6 +253,7 @@ void audiohw_set_frequency(int fsel) return; } + ap_mute(true); __i2s_stop_bitclk(); /* 0 = Single-Speed Mode (<50KHz); @@ -268,6 +270,8 @@ void audiohw_set_frequency(int fsel) __cpm_set_i2sdiv(mclk_div-1); __i2s_set_i2sdiv(bclk_div-1); __i2s_start_bitclk(); + mdelay(20); + ap_mute(false); } void audiohw_postinit(void) |