/*----------------------------------------------------------------------------
check if character(s) are available at CDC_OutBuf
*---------------------------------------------------------------------------*/
int CDC_OutBufAvailChar (int *availChar)
{
*availChar = CDC_BUF_COUNT(CDC_OutBuf);
return (0);
}
/*----------------------------------------------------------------------------
write data to CDC_InBuf
*---------------------------------------------------------------------------*/
int CDC_WrInBuf (const char *buffer, int *length)
{
int bytesToWrite, bytesWritten;
// Write *length bytes
bytesToWrite = *length;
bytesWritten = bytesToWrite;
// Just block if we can't write all at once
// +1 to prevent an overflow of the ring buffer
while( CDC_BUF_SIZE - CDC_BUF_COUNT(CDC_InBuf) < bytesToWrite+1 );
//uint8_t flush = CDC_DepInEmpty;
USB_DEVINTEN = 0;
while (bytesToWrite--) {
CDC_BUF_WR(CDC_InBuf, *buffer++); // Copy Data to buffer
}
//if( flush == 1 ){
//if( CDC_DepInEmpty && CDC_BUF_COUNT(CDC_InBuf) ){
if( CDC_DepInEmpty ){
CDC_DepInEmpty = 0;
CDC_BulkIn();
}
USB_DEVINTEN = DEV_STAT_INT | (0xFF<<1) | (USB_SOF_EVENT ? FRAME_INT : 0);
return (bytesWritten);
}
