/******************************************************************************
* @fn HalUARTPollISR
*
* @brief Poll a USART module implemented by ISR.
*
* @param none
*
* @return none
*****************************************************************************/
static void HalUARTPollISR(void)
{
if (isrCfg.uartCB != NULL)
{
uint16 cnt = HAL_UART_ISR_RX_AVAIL();
uint8 evt = 0;
if (isrCfg.rxTick)
{
// Use the LSB of the sleep timer (ST0 must be read first anyway).
uint8 decr = ST0 - isrCfg.rxShdw;
if (isrCfg.rxTick > decr)
{
isrCfg.rxTick -= decr;
}
else
{
isrCfg.rxTick = 0;
}
}
isrCfg.rxShdw = ST0;
if (cnt >= HAL_UART_ISR_RX_MAX-1)
{
evt = HAL_UART_RX_FULL;
}
else if (cnt >= HAL_UART_ISR_HIGH)
{
evt = HAL_UART_RX_ABOUT_FULL;
}
else if (cnt && !isrCfg.rxTick)
{
evt = HAL_UART_RX_TIMEOUT;
}
if (isrCfg.txMT)
{
isrCfg.txMT = 0;
evt |= HAL_UART_TX_EMPTY;
}
if (evt)
{
isrCfg.uartCB(HAL_UART_ISR-1, evt);
}
}
}
/**************************************************************************************************
* @fn HalUARTRxAvailISR()
*
* @brief Calculate Rx Buffer length - the number of bytes in the buffer.
*
* @param none
*
* @return length of current Rx Buffer
**************************************************************************************************/
static uint16 HalUARTRxAvailISR(void)
{
return HAL_UART_ISR_RX_AVAIL();
}