Vergil_Wong/lib_xua
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Function names to meet existing coding style & some comments

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This commit is contained in:
Ed Clarke
2018-01-02 07:25:08 +00:00
parent 0f6bc2fa2c
commit 665aa5c0aa
1 changed files with 14 additions and 7 deletions
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21
lib_xua/src/core/audiohub/xua_audiohub.xc
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@@ -311,8 +311,8 @@ static inline unsigned DoSampleTransfer(chanend ?c_out, const int readBuffNo, co
#endif /* NO_USB */
static inline void do_dsd_native(unsigned samplesOut[], unsigned &dsdSample_l, unsigned &dsdSample_r, unsigned divide){
/* This function performs the DSD native loop and outputs a 32b DSD stream per loop */
static inline void DoDsdNative(unsigned samplesOut[], unsigned &dsdSample_l, unsigned &dsdSample_r, unsigned divide){
#if (DSD_CHANS_DAC != 0) && (NUM_USB_CHAN_OUT > 0)
/* 8 bits per chan, 1st 1-bit sample in MSB */
dsdSample_l = samplesOut[0];
@@ -356,7 +356,9 @@ static inline void do_dsd_native(unsigned samplesOut[], unsigned &dsdSample_l, u
#endif
}
static inline void do_dsp_dop(unsigned &everyOther, unsigned samplesOut[], unsigned &dsdSample_l, unsigned &dsdSample_r, unsigned divide){
/* This function performs the DOP loop and collects 16b of DSD per loop
and outputs a 32b word into the port buffer every other cycle. */
static inline void DoDsdDop(unsigned &everyOther, unsigned samplesOut[], unsigned &dsdSample_l, unsigned &dsdSample_r, unsigned divide){
#if (DSD_CHANS_DAC != 0) && (NUM_USB_CHAN_OUT > 0)
if(!everyOther)
{
@@ -418,7 +420,12 @@ static inline void do_dsp_dop(unsigned &everyOther, unsigned samplesOut[], unsig
#endif
}
static inline void do_dsd_dop_check(unsigned &dsdMode, int &dsdCount, unsigned curSamFreq, unsigned samplesOut[], unsigned &dsdMarker){
/* When DSD is enabled and streaming is normal I2S, this function checks for a series of DoP markers in the upper byte.
If found it will exit deliver() with the command to restart in DoP mode.
When in DoP mode, this function will check for a single absence of the DoP marker and exit deliver() with the command
to restart in I2S mode. */
static inline void DoDsdDopCheck(unsigned &dsdMode, int &dsdCount, unsigned curSamFreq, unsigned samplesOut[], unsigned &dsdMarker){
#if (DSD_CHANS_DAC != 0) && (NUM_USB_CHAN_OUT > 0)
/* Check for DSD - note we only move into DoP mode if valid DoP Freq */
/* Currently we only check on channel 0 - we get all 0's on channels without data */
@@ -678,8 +685,8 @@ unsigned static deliver_master(chanend ?c_out, chanend ?c_spd_out
{
{
#if (DSD_CHANS_DAC != 0) && (NUM_USB_CHAN_OUT > 0)
if(dsdMode == DSD_MODE_NATIVE) do_dsd_native(samplesOut, dsdSample_l, dsdSample_r, divide);
else if(dsdMode == DSD_MODE_DOP) do_dsp_dop(everyOther, samplesOut, dsdSample_l, dsdSample_r, divide);
if(dsdMode == DSD_MODE_NATIVE) DoDsdNative(samplesOut, dsdSample_l, dsdSample_r, divide);
else if(dsdMode == DSD_MODE_DOP) DoDsdDop(everyOther, samplesOut, dsdSample_l, dsdSample_r, divide);
else
#endif
{
@@ -899,7 +906,7 @@ unsigned static deliver_master(chanend ?c_out, chanend ?c_spd_out
doI2SClocks(divide);
} // !dsdMode
do_dsd_dop_check(dsdMode, dsdCount, curSamFreq, samplesOut, dsdMarker);
DoDsdDopCheck(dsdMode, dsdCount, curSamFreq, samplesOut, dsdMarker);
#ifdef I2S_MODE_TDM
/* Increase frameCount by 2 since we have output two channels (per data line) */