uint8_t UartUsbGetChar( Uart_t *obj, uint8_t *data )
{
if( IsFifoEmpty( &obj->FifoRx ) == false )
{
BoardDisableIrq( );
*data = FifoPop( &obj->FifoRx );
BoardEnableIrq( );
return 0;
}
return 1;
}
uint8_t UartMcuGetChar( Uart_t *obj, uint8_t *data )
{
if( IsFifoEmpty( &obj->FifoRx ) == false )
{
__disable_irq( );
*data = FifoPop( &obj->FifoRx );
__enable_irq( );
return 0;
}
return 1;
}
/**
* @brief VCP_DataRx
* Data received over USB OUT endpoint are sent over CDC interface
* through this function.
*
* @note
* This function will block any OUT packet reception on USB endpoint
* untill exiting this function. If you exit this function before transfer
* is complete on CDC interface (ie. using DMA controller) it will result
* in receiving more data while previous ones are still not sent.
*
* @param Buf: Buffer of data to be received
* @param Len: Number of data received (in bytes)
* @retval Result of the opeartion: USBD_OK if all operations are OK else VCP_FAIL
*/
static uint16_t VCP_DataRx (uint8_t* Buf, uint32_t Len)
{
uint32_t i;
if( IsFifoEmpty( &FifoRx ) == true )
{
for( i = 0; i < Len; i++ )
{
FifoPush( &FifoRx, Buf[i] );
}
}
return USBD_OK;
}
uint8_t UartUsbGetChar( Uart_t *obj, uint8_t *data )
{
if( UsbMcuIsDeviceConfigured( ) == false )
{
return 2;
}
SetEPRxValid( ENDP3 );
if( IsFifoEmpty( &obj->FifoRx ) == false )
{
__disable_irq( );
*data = FifoPop( &obj->FifoRx );
__enable_irq( );
return 0;
}
return 1;
}
void USART1_IRQHandler( void )
{
uint8_t data;
if( USART_GetITStatus( USART1, USART_IT_TXE ) != RESET )
{
//GpioWrite( &LedRed, 0 );
if( IsFifoEmpty( &Uart1.FifoTx ) == false )
{
data = FifoPop( &Uart1.FifoTx );
// Write one byte to the transmit data register
USART_SendData( USART1, data );
}
else
{
// Disable the USART Transmit interrupt
USART_ITConfig( USART1, USART_IT_TXE, DISABLE );
}
if( Uart1.IrqNotify != NULL )
{
Uart1.IrqNotify( UART_NOTIFY_TX );
}
//GpioWrite( &LedRed, 1 );
}
if( USART_GetITStatus( USART1, USART_IT_ORE_RX ) != RESET )
{
USART_ReceiveData( USART1 );
}
if( USART_GetITStatus( USART1, USART_IT_RXNE ) != RESET )
{
//UartPrintf( &Uart1, "USART_GetITStatus( USART1, USART_IT_RXNE )\n" );
//GpioWrite( &LedGreen, 0 );
data = USART_ReceiveData( USART1 );
if( IsFifoFull( &Uart1.FifoRx ) == false )
{
// Read one byte from the receive data register
FifoPush( &Uart1.FifoRx, data );
}
if( Uart1.IrqNotify != NULL )
{
Uart1.IrqNotify( UART_NOTIFY_RX );
}
//GpioWrite( &LedGreen, 1 );
}
}
void EP1_IN_Callback (void)
{
UsbPacketTx = 1;
UsbTxLength = 0;
while( IsFifoEmpty( &UartUsb.FifoTx ) == false )
{
UsbTxBuffer[UsbTxLength] = FifoPop( &UartUsb.FifoTx );
UsbTxLength++;
}
if( UsbTxLength > 0 )
{
UsbPacketTx = 0;
UserToPMABufferCopy( ( unsigned char* )UsbTxBuffer, ENDP1_TXADDR, UsbTxLength );
SetEPTxCount( ENDP1, UsbTxLength );
SetEPTxValid( ENDP1 );
}
}
