laiyp/lib_xua
1
0
Fork 0
forked from PAWPAW-Mirror/lib_xua
Code Pull Requests Activity

Removed the extra I2S input code. TDM and I2S port input code now shared.

Browse Source
This commit is contained in:
Ross Owen
2014-11-27 18:15:04 +00:00
parent 673946b028
commit 86faae8890
1 changed files with 3 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
module_usb_audio/audio.xc
View File

@@ -576,7 +576,7 @@ chanend ?c_adc)
index = 0;
/* First input (i.e. frameCoint == 0) we read last ADC channel of previous frame.. */
unsigned buffIndex = frameCount ? !readBuffNo : readBuffNo;
#ifdef I2S_MODE_TDM
#pragma loop unroll
/* First time around we get channel 7 of TDM8 */
for(int i = 0; i < I2S_CHANS_ADC; i+=I2S_CHANS_PER_FRAME)
@@ -589,21 +589,6 @@ chanend ?c_adc)
else
samplesIn_0[((frameCount-1)&(I2S_CHANS_PER_FRAME-1))+i] = bitrev(sample); // channels 1, 3, 5.. on each line.
}
#else
#pragma loop unroll
for(int i = 0; i < I2S_CHANS_ADC; i += 2) // TODO I2S_CHANS_PER_FRAME
{
/* Manual IN instruction since compiler generates an extra setc per IN (bug #15256) */
asm volatile("in %0, res[%1]" : "=r"(sample) : "r"(p_i2s_adc[index++]));
if(buffIndex)
samplesIn_1[((frameCount-1)&(I2S_CHANS_PER_FRAME-1))+i] = bitrev(sample); // channels 1, 3, 5.. on each line.
else
samplesIn_0[((frameCount-1)&(I2S_CHANS_PER_FRAME-1))+i] = bitrev(sample); // channels 1, 3, 5.. on each line.
// samplesIn_1[i] = bitrev(sample);
// samplesIn[i-1] = samplesInPrev[i];
}
#endif
#endif
@@ -673,32 +658,17 @@ chanend ?c_adc)
#if (I2S_CHANS_ADC != 0)
index = 0;
#ifdef I2S_MODE_TDM
/* Channels 0, 2, 4.. on each line */
#pragma loop unroll
#pragma loop unroll
for(int i = 0; i < I2S_CHANS_ADC; i += I2S_CHANS_PER_FRAME)
{
/* Manual IN instruction since compiler generates an extra setc per IN (bug #15256) */
asm volatile("in %0, res[%1]" : "=r"(sample) : "r"(p_i2s_adc[index++]));
if(readBuffNo)
samplesIn_0[frameCount+i] = bitrev(sample);
else
samplesIn_1[frameCount+i] = bitrev(sample);
}
#else
/* Input previous right ADC sample */
for(int i = 0; i < I2S_CHANS_ADC; i += 2)
{
/* Manual IN instruction since compiler generates an extra setc per IN (bug #15256) */
asm volatile("in %0, res[%1]" : "=r"(sample) : "r"(p_i2s_adc[index++]));
//samplesInPrev[i] = bitrev(sample);
if(readBuffNo)
samplesIn_0[frameCount+i] = bitrev(sample);
else
samplesIn_1[frameCount+i] = bitrev(sample);
//samplesIn_1[i] = bitrev(sample);
}
#endif
#ifdef SU1_ADC_ENABLE
{