/*
* ======== DSK6713_AIC23_read ========
* Read a 32-bit value from the codec
*/
Int16 DSK6713_AIC23_read(DSK6713_AIC23_CodecHandle hCodec, Uint32 *val)
{
/* If McBSP doesn't have new data available, return false */
if (!MCBSP_rrdy(DSK6713_AIC23_DATAHANDLE)) {
return (FALSE);
}
/* Read the data */
*val = MCBSP_read(DSK6713_AIC23_DATAHANDLE);
return (TRUE);
}
// input to right channel
short input_right_sample() {
// if ready to receive
if (poll) while(!MCBSP_rrdy(DSK6713_AIC23_DATAHANDLE));
// read into right channel
AIC_data.uint=MCBSP_read(DSK6713_AIC23_DATAHANDLE);
// return right channel data
return(AIC_data.channel[RIGHT]);
}
void sendData(uint32_t * ptr)
{
while(!MCBSP_rrdy(mcbspDataHandle));
MCBSP_write(mcbspDataHandle, *ptr);
asm(" nop");
asm(" nop");
asm(" nop");
asm(" nop");
asm(" nop");
asm(" nop");
}
unsigned char if_spiSend(hwInterface *iface, euint8 outgoing)
{
unsigned char r;
/* while((*(unsigned volatile long*)McBSP0_SPCR & 0x20000)==0);
*(unsigned volatile char*)McBSP0_DXR=outgoing;
while(((*(unsigned volatile long*)McBSP0_SPCR & 0x2)==0));
r=*(unsigned volatile char*)McBSP0_DRR; */
while(!MCBSP_xrdy(iface->port->hBsp));
MCBSP_write(iface->port->hBsp,outgoing);
while(!MCBSP_rrdy(iface->port->hBsp));
r=MCBSP_read(iface->port->hBsp);
return(r);
}
void mcbspSetup()
{
mcbspControlHandle = MCBSP_open(MCBSP_DEV0, MCBSP_OPEN_RESET);
mcbspDataHandle = MCBSP_open(MCBSP_DEV1, MCBSP_OPEN_RESET);
if(mcbspControlHandle == INV || mcbspDataHandle == INV)
{
return;
}
MCBSP_config(mcbspControlHandle, &mcbsp_control_config);
MCBSP_config(mcbspDataHandle, &mcbsp_data_config);
MCBSP_start(mcbspControlHandle, MCBSP_XMIT_START | MCBSP_RCV_START | MCBSP_SRGR_START | MCBSP_SRGR_FRAMESYNC, 220);
codec_reset();
codec_config();
if (MCBSP_rrdy(mcbspDataHandle))
MCBSP_read(mcbspDataHandle);
MCBSP_start(mcbspDataHandle, MCBSP_XMIT_START | MCBSP_RCV_START | MCBSP_SRGR_START | MCBSP_SRGR_FRAMESYNC, 220);
}
// for 32-bit input
Uint32 input_sample() {
short CHANNEL_data;
// if ready to receive
if (poll) while(!MCBSP_rrdy(DSK6713_AIC23_DATAHANDLE));
//read data
AIC_data.uint=MCBSP_read(DSK6713_AIC23_DATAHANDLE);
/********************************************************************
* Swapping left and right channels (see comments in output_sample())
********************************************************************/
//swap left and right channel
CHANNEL_data=AIC_data.channel[RIGHT];
AIC_data.channel[RIGHT]=AIC_data.channel[LEFT];
AIC_data.channel[LEFT]=CHANNEL_data;
return(AIC_data.uint);
}
void getData(uint32_t * ptr)
{
while(!MCBSP_rrdy(mcbspDataHandle));
*ptr = MCBSP_read(mcbspDataHandle);
}