/*******************************************************************************
* Function Name : uart_irq_handler
* Description : Interrupt handle function
* Input : - Uart: Select the USART or the UART peripheral.
* Output : None
* Return : None
*******************************************************************************/
void uart_irq_handler(const _Uart_Descriptor *Uart)
{
//
__hw_enter_interrupt();
//
if (*Uart->Ctrl && (*Uart->Ctrl)->DmaBufSize)
{
if (USART_GetITStatus(Uart->UARTx, USART_IT_IDLE) != RESET) // Idle line
{
NVIC_SetPendingIRQ(Uart->DMAx_IRQn);
USART_ReceiveData(Uart->UARTx);
}
}
else if (USART_GetITStatus(Uart->UARTx, USART_IT_RXNE) != RESET) // Received Data Ready to be Read
{
if (*Uart->Ctrl && ((*Uart->Ctrl)->RxCnt < (*Uart->Ctrl)->RxBufSize))
{
(*Uart->Ctrl)->RxBufPtr[(*Uart->Ctrl)->RxiPut++] = (char)USART_ReceiveData(Uart->UARTx);
//lepton
if(!(*Uart->Ctrl)->RxCnt){
if(Uart->board_uart_info && Uart->board_uart_info->desc_r!=-1)
__fire_io_int(ofile_lst[Uart->board_uart_info->desc_r].owner_pthread_ptr_read);
}
//lepton
(*Uart->Ctrl)->RxCnt++;
if ((*Uart->Ctrl)->RxiPut >= (*Uart->Ctrl)->RxBufSize) (*Uart->Ctrl)->RxiPut = 0;
if (((*Uart->Ctrl)->HwCtrl & UART_HW_FLOW_CTRL_RX) && ((*Uart->Ctrl)->RxCnt > ((*Uart->Ctrl)->RxBufSize - (*Uart->Ctrl)->DmaBufSize))) uart_set_rx_hw_fc(Uart);
}
else USART_ClearITPendingBit(Uart->UARTx, USART_IT_RXNE);
#ifdef _UART_OS_SUPPORT
isr_evt_set((*Uart->Ctrl)->Event, (*Uart->Ctrl)->Task);
#endif
}
if (USART_GetITStatus(Uart->UARTx, USART_IT_TXE) != RESET) // Transmit Data Register Empty
{
if (*Uart->Ctrl && (*Uart->Ctrl)->TxCnt)
{
USART_SendData(Uart->UARTx, (*Uart->Ctrl)->TxBufPtr[(*Uart->Ctrl)->TxiGet++]);
(*Uart->Ctrl)->TxCnt--;
if ((*Uart->Ctrl)->TxiGet >= (*Uart->Ctrl)->TxBufSize) (*Uart->Ctrl)->TxiGet = 0;
}
else{
USART_ITConfig(Uart->UARTx, USART_IT_TXE, DISABLE);
//lepton
if(Uart->board_uart_info && Uart->board_uart_info->desc_w!=-1)
__fire_io_int(ofile_lst[Uart->board_uart_info->desc_w].owner_pthread_ptr_write);
//lepton
}
}
if (USART_GetITStatus(Uart->UARTx, USART_IT_TC) != RESET) // Transmission complete
{
if (*Uart->Ctrl && ((*Uart->Ctrl)->HwCtrl & UART_HALF_DUPLEX))
uart_tx_disable(Uart);
USART_ClearITPendingBit(Uart->UARTx, USART_IT_TC);
}
//
__hw_leave_interrupt();
}
/**
@brief Network receive callback function
@param[in] *arg: unused
@param[in] *data: Data received
@param[in] length: Length of data received
@return void
*/
MEMSPACE
static void tcp_data_receive_callback(void *arg, char *data, uint16_t length)
{
uint16_t current;
uint8_t byte;
// Echo debug
#if 0
for(current = 0; current < length; current++)
uart0_putc(data[current]);
#endif
// FIXME NOT WORKING
//
for(current = 0; (current < length) && queue_space(uart_send_queue); current++)
{
byte = (uint8_t)data[current];
queue_pushc(uart_send_queue, byte);
}
if(queue_empty(uart_send_queue) && tx_fifo_empty(0))
uart_tx_disable(0);
else
uart_tx_enable(0);
}
