void
prvvMBSerialIRQHandler( void )
{
portENTER_SWITCHING_ISR( );
static BOOL xTaskWokenReceive = FALSE;
static BOOL xTaskWokenTransmit = FALSE;
static USHORT usStatus;
usStatus = UART_FlagStatus( MB_UART_DEV );
if( prvMBPortTXIsEnabled( ) && ( usStatus & UART_TxHalfEmpty ) )
{
xTaskWokenReceive = pxMBFrameCBTransmitterEmpty( );
}
if( prvMBPortRXIsEnabled( ) && ( usStatus & UART_RxBufFull ) )
{
xTaskWokenReceive = pxMBFrameCBByteReceived( );
}
/* End the interrupt in the EIC. */
EIC->IPR |= 1 << EIC_CurrentIRQChannelValue( );
portEXIT_SWITCHING_ISR( ( xTaskWokenReceive
|| xTaskWokenTransmit ) ? pdTRUE : pdFALSE );
}
void vPortNonPreemptiveTick( void )
{
vTaskIncrementTick();
/* Clear the interrupt in the watchdog and EIC. */
WDG->SR = 0x0000;
/* clear current interrupt pending flag for interupt source. */
EIC->IPR |= 1 << EIC_CurrentIRQChannelValue();
}
void
sio_uart1_irq( void )
{
/* Save context to stack. */
portENTER_SWITCHING_ISR( );
static u8_t need_ctx_switch;
sio_serial_isr( UART1, &need_ctx_switch );
/* End the interrupt in the EIC. */
EIC->IPR |= 1 << EIC_CurrentIRQChannelValue( );
/* End the ISR. */
portEXIT_SWITCHING_ISR( need_ctx_switch ? pdTRUE : pdFALSE );
}
void vPortPreemptiveTick( void )
{
/* Save the context of the interrupted task. */
portSAVE_CONTEXT();
/* Increment the RTOS tick count, then look for the highest priority
* task that is ready to run.
*/
vTaskIncrementTick();
vTaskSwitchContext();
/* Clear the interrupt in the watchdog and EIC. */
WDG->SR = 0x0000;
/* clear current interrupt pending flag for interupt source. */
EIC->IPR |= 1 << EIC_CurrentIRQChannelValue();
/* Restore the context of the new task. */
portRESTORE_CONTEXT();
}
