REVISION
Definition in file CODEC_data.c.
#include "../SYSTEM/sys_hardware.h"
#include "codec.h"
#include "codec_assert.h"
#include "../AUDIO/audio.h"
Include dependency graph for CODEC_data.c:
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Functions | |
| void | CODEC_data (void) |
| Function serves as the data task handle to fetch data from codec ADC. | |
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Function serves as the data task handle to fetch data from codec ADC. Also function checkes to feed data into pcm pipe. Definition at line 40 of file CODEC_data.c. References st_PCM::codecMode, COP_AUTOSCAN, COP_FM_RECORD, COP_FMXMIT, COP_ILINK, COP_LINE_RECORD, COP_MIC_RECORD, COP_MUSIC, COP_TUNER, st_PCM::flag, st_PCM::getFunc, st_PCM::pipe, PIPE_writeNext(), and st_PCM::putFunc. 00041 {
00042 PIPE_Obj * pPipe = &Pcm.pipe;
00043 int * pData;
00044
00045 // Use input to sync.
00046 if ( PIPE_writeFrameNum(pPipe) )
00047 {
00048 // Check output first.
00049 #ifdef MIXER_SUPPORT
00050 if( Pcm.codecMode & (COP_TUNER|COP_LINE_RECORD|COP_MIC_RECORD|COP_FM_RECORD|COP_AUTOSCAN|COP_ILINK|COP_MUSIC|COP_FMXMIT) )
00051 #else
00052 if( Pcm.codecMode & (COP_TUNER|COP_LINE_RECORD|COP_MIC_RECORD|COP_FM_RECORD|COP_AUTOSCAN|COP_ILINK) )
00053 #endif
00054 {
00055 /* which part of the buffer is valid??? */
00056 if( Pcm.flag & UPPER_HALF_BUF )
00057 {
00058 /* upper half. */
00059 pData = &BUF_output[0];
00060 }
00061 else
00062 {
00063 /* lower half. */
00064 pData = &BUF_output[BUF_OUTPUTSIZE/2];
00065 }
00066 _sortChannel(pData);
00067 Pcm.getFunc(ChannelBuf, BUF_OUTPUTSIZE/2);
00068 }
00069
00070 if( Pcm.codecMode &(COP_MUSIC|COP_FMXMIT|COP_TUNER|COP_LINE_RECORD|COP_FM_RECORD|COP_AUTOSCAN|COP_ILINK) )
00071 {
00072 Pcm.putFunc(pPipe->WrFrame.Frame, pPipe->wFrameLen);
00073 }
00074
00075 /* validate frame. */
00076 PIPE_writeNext(pPipe);
00077 }
00078 }
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1.3.9.1