devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

AS3514: Simplify as there isn't a need to track the current source and sync mixer levels. Gang them when adjusting volume. Any inputs not currently in use will be muted or off anyway.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19713 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2009-01-08 04:21:24 +00:00
parent 07e982df8a
commit dba556f33f
1 changed files with 6 additions and 40 deletions
Download patch file Download diff file Expand all files Collapse all files

46
firmware/drivers/audio/as3514.c
View file

@ -54,17 +54,6 @@ static struct as3514_info
uint8_t regs[AS3514_NUM_AUDIO_REGS]; /* 8-bit registers */
} as3514;
/* In order to keep track of source for combining volume ranges */
enum
{
SOURCE_DAC = 0,
SOURCE_MIC1,
SOURCE_LINE_IN1,
SOURCE_LINE_IN1_ANALOG
};
static unsigned int source = SOURCE_DAC;
/*
* little helper method to set register values.
* With the help of as3514.regs, we minimize i2c
@ -213,20 +202,11 @@ void audiohw_set_master_vol(int vol_l, int vol_r)
{
unsigned int hph_r, hph_l;
unsigned int mix_l, mix_r;
unsigned int mix_reg_r, mix_reg_l;
/* keep track of current setting */
as3514.vol_l = vol_l;
as3514.vol_r = vol_r;
if (source == SOURCE_LINE_IN1_ANALOG) {
mix_reg_r = AS3514_LINE_IN1_R;
mix_reg_l = AS3514_LINE_IN1_L;
} else {
mix_reg_r = AS3514_DAC_R;
mix_reg_l = AS3514_DAC_L;
}
/* We combine the mixer channel volume range with the headphone volume
range - keep first stage as loud as possible */
if (vol_r <= 0x16) {
@ -245,8 +225,12 @@ void audiohw_set_master_vol(int vol_l, int vol_r)
hph_l = vol_l - 0x16;
}
as3514_write_masked(mix_reg_r, mix_r, AS3514_VOL_MASK);
as3514_write_masked(mix_reg_l, mix_l, AS3514_VOL_MASK);
as3514_write_masked(AS3514_DAC_R, mix_r, AS3514_VOL_MASK);
as3514_write_masked(AS3514_DAC_L, mix_l, AS3514_VOL_MASK);
#ifdef HAVE_RECORDING
as3514_write_masked(AS3514_LINE_IN1_R, mix_r, AS3514_VOL_MASK);
as3514_write_masked(AS3514_LINE_IN1_L, mix_l, AS3514_VOL_MASK);
#endif
as3514_write_masked(AS3514_HPH_OUT_R, hph_r, AS3514_VOL_MASK);
as3514_write_masked(AS3514_HPH_OUT_L, hph_l, AS3514_VOL_MASK);
}
@ -298,11 +282,6 @@ void audiohw_set_frequency(int fsel)
void audiohw_enable_recording(bool source_mic)
{
if (source_mic) {
source = SOURCE_MIC1;
/* Sync mixer volumes before switching inputs */
audiohw_set_master_vol(as3514.vol_l, as3514.vol_r);
/* ADCmux = Stereo Microphone */
as3514_write_masked(AS3514_ADC_R, ADC_R_ADCMUX_ST_MIC,
ADC_R_ADCMUX);
@ -313,10 +292,6 @@ void audiohw_enable_recording(bool source_mic)
/* M1_AGC_off */
as3514_clear(AS3514_MIC1_R, MIC1_R_M1_AGC_off);
} else {
source = SOURCE_LINE_IN1;
audiohw_set_master_vol(as3514.vol_l, as3514.vol_r);
/* ADCmux = Line_IN1 */
as3514_write_masked(AS3514_ADC_R, ADC_R_ADCMUX_LINE_IN1,
ADC_R_ADCMUX);
@ -334,8 +309,6 @@ void audiohw_enable_recording(bool source_mic)
void audiohw_disable_recording(void)
{
source = SOURCE_DAC;
/* ADC_Mute_on */
as3514_clear(AS3514_ADC_L, ADC_L_ADC_MUTE_off);
@ -343,8 +316,6 @@ void audiohw_disable_recording(void)
as3514_clear(AS3514_AUDIOSET1,
AUDIOSET1_ADC_on | AUDIOSET1_LIN1_on |
AUDIOSET1_MIC1_on);
audiohw_set_master_vol(as3514.vol_l, as3514.vol_r);
}
/**
@ -403,8 +374,6 @@ void audiohw_set_recvol(int left, int right, int type)
void audiohw_set_monitor(bool enable)
{
if (enable) {
source = SOURCE_LINE_IN1_ANALOG;
as3514_set(AS3514_AUDIOSET1, AUDIOSET1_LIN1_on);
as3514_set(AS3514_LINE_IN1_R, LINE_IN1_R_LI1R_MUTE_off);
as3514_set(AS3514_LINE_IN1_L, LINE_IN1_L_LI1L_MUTE_off);
@ -414,8 +383,5 @@ void audiohw_set_monitor(bool enable)
as3514_clear(AS3514_LINE_IN1_R, LINE_IN1_R_LI1R_MUTE_off);
as3514_clear(AS3514_LINE_IN1_L, LINE_IN1_L_LI1L_MUTE_off);
}
/* Sync mixer volume */
audiohw_set_master_vol(as3514.vol_l, as3514.vol_r);
}
#endif /* HAVE_RECORDING */