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Opts for fitting beclear

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Ross Owen
2016-12-05 19:26:14 +00:00
parent 9c5bff58c4
commit ca1925db7a
15 changed files with 224 additions and 121 deletions
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12
module_usb_audio/pdm_mics/pdm_mic.xc
View File

@@ -17,7 +17,7 @@
#include "mic_array.h"
#include "xua_pdm_mic.h"
#define MAX_DECIMATION_FACTOR 12
#define MAX_DECIMATION_FACTOR (96000/MIN_FREQ)
/* Hardware resources */
in port p_pdm_clk = PORT_PDM_CLK;
@@ -36,11 +36,11 @@ mic_array_frame_time_domain mic_audio[2];
void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio, client mic_process_if i_mic_process)
#else
#pragma unsafe arrays
[[combinable]]
void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio)
#endif
{
unsigned buffer;
int output[NUM_PDM_MICS];
unsigned samplerate;
#ifdef MIC_PROCESSING_USE_INTERFACE
@@ -126,7 +126,7 @@ void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio)
#ifdef MIC_PROCESSING_USE_INTERFACE
i_mic_process.transfer_buffers(current, output);
#else
user_pdm_process(current, output);
user_pdm_process(current);
#endif
int req;
while(1)
@@ -143,7 +143,7 @@ void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio)
#pragma loop unroll
for(int i = 0; i < NUM_PDM_MICS; i++)
{
c_audio <: output[i];
c_audio <: current->data[i][0];
}
}
@@ -154,7 +154,7 @@ void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio)
#ifdef MIC_PROCESSING_USE_INTERFACE
i_mic_process.transfer_buffers(current, output);
#else
user_pdm_process(current, output);
user_pdm_process(current);
#endif
}
else
@@ -177,7 +177,7 @@ void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio)
#ifdef MIC_PROCESSING_USE_INTERFACE
i_mic_process.transfer_buffers(current, output);
#else
user_pdm_process(current, output);
user_pdm_process(current);
#endif
}
break;

9
module_usb_audio/pdm_mics/pdm_mic_user.c
View File

@@ -14,15 +14,8 @@ void user_pdm_init()
void user_pdm_process() __attribute__ ((weak));
void user_pdm_process(mic_array_frame_time_domain * audio, int output[])
void user_pdm_process(mic_array_frame_time_domain * audio)
{
for(unsigned i=0; i<NUM_PDM_MICS; i++)
{
/* Simply copy input buffer to output buffer unmodified */
output[i] = audio->data[i][0];
}
return;
}

3
module_usb_audio/pdm_mics/xua_pdm_mic.h
View File

@@ -26,11 +26,12 @@ void pdm_mic(streaming chanend c_ds_output[2]);
#else
/* Simple user hooks/call-backs */
void user_pdm_process(mic_array_frame_time_domain * unsafe audio, int output[]);
void user_pdm_process(mic_array_frame_time_domain * unsafe audio);
void user_pdm_init();
/* PDM interface and decimation cores */
[[combinable]]
void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio);
/* PDM interface and decimation cores */