C++ rt_hw_serial_isr函数代码示例

void rt_fh_uart_handler(int vector, void *param)
{
    int status;
    unsigned int ret;
    struct fh_uart *uart;
    unsigned int reg_status;
    rt_device_t dev = (rt_device_t)param;
    uart = (struct fh_uart *)dev->user_data;
    status = uart_get_iir_status(uart->uart_port);
    if (status & UART_IIR_NOINT)
    {
        return;
    }
    if(status & UART_IIR_THREMPTY) {
        //first close tx isr
        uart_disable_irq(uart->uart_port,UART_IER_ETBEI);

        rt_hw_serial_isr((struct rt_serial_device *)dev, RT_SERIAL_EVENT_TX_DONE);
    }
    else if((status & UART_IIR_CHRTOUT)==UART_IIR_CHRTOUT) {
        //bug....
        //if no data in rx fifo
        reg_status = uart_get_status(uart->uart_port);
        if((reg_status & 1<<3) == 0)
            ret = uart_getc(uart->uart_port);
    }
    else {
        rt_interrupt_enter();
        rt_hw_serial_isr((struct rt_serial_device *)dev, RT_SERIAL_EVENT_RX_IND);
        rt_interrupt_leave();
    }
}

void UART0_IRQHandler(void)
{
    if (nrf_uart_int_enable_check(NRF_UART0, NRF_UART_INT_MASK_ERROR)
        && nrf_uart_event_check(NRF_UART0, NRF_UART_EVENT_ERROR))
    {
        nrf_uart_event_clear(NRF_UART0, NRF_UART_EVENT_ERROR);
    }

    if (nrf_uart_int_enable_check(NRF_UART0, NRF_UART_INT_MASK_RXDRDY)
        && nrf_uart_event_check(NRF_UART0, NRF_UART_EVENT_RXDRDY))
    {
        rt_hw_serial_isr(working_cfg->serial, RT_SERIAL_EVENT_RX_IND);
    }

    if (nrf_uart_int_enable_check(NRF_UART0, NRF_UART_INT_MASK_TXDRDY)
        && nrf_uart_event_check(NRF_UART0, NRF_UART_EVENT_TXDRDY))
    {
        rt_hw_serial_isr(working_cfg->serial, RT_SERIAL_EVENT_TX_DONE);
    }

    if (nrf_uart_event_check(NRF_UART0, NRF_UART_EVENT_RXTO))
    {
        rt_hw_serial_isr(working_cfg->serial, RT_SERIAL_EVENT_RX_TIMEOUT);
    }
}

void USART1_IRQHandler(void)
{
    struct stm32_uart* uart;

    uart = &uart1;

    /* enter interrupt */
    rt_interrupt_enter();
    if(USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
    {
        rt_hw_serial_isr(&serial1, RT_SERIAL_EVENT_RX_IND);
        /* clear interrupt */
        USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
    }

    if (USART_GetITStatus(uart->uart_device, uart->tx_irq_type) != RESET)
    {
        /* clear interrupt */
        rt_hw_serial_isr(&serial1, RT_SERIAL_EVENT_TX_DONE);
        if (uart->tx_irq_type == USART_IT_TC)
        {
            USART_ClearITPendingBit(uart->uart_device, uart->tx_irq_type);
        }
    }
    if (USART_GetFlagStatus(uart->uart_device, USART_FLAG_ORE) == SET)
    {
        stm32_getc(&serial1);
    }
    /* leave interrupt */
    rt_interrupt_leave();
}

/* Implementation of UART0 handler named in startup code. */
void UART0_RX_TX_IRQHandler(void)
{
    rt_interrupt_enter();
    rt_hw_serial_isr((struct rt_serial_device*)&_kinetis_serial, RT_SERIAL_EVENT_RX_IND);
    //UART_DRV_IRQHandler(0);
    rt_interrupt_leave();
}

/**
 * Uart common interrupt process. This need add to uart ISR.
 *
 * @param serial serial device
 */
static void uart_isr(struct rt_serial_device *serial)
{
    struct imxrt_uart *uart;
    LPUART_Type *base;

    RT_ASSERT(serial != RT_NULL);

    uart = (struct imxrt_uart *) serial->parent.user_data;
    RT_ASSERT(uart != RT_NULL);

    base = uart->uart_base;
    RT_ASSERT(base != RT_NULL);

    /* enter interrupt */
    rt_interrupt_enter();

    /* UART in mode Receiver -------------------------------------------------*/
    if (LPUART_GetStatusFlags(base) & kLPUART_RxDataRegFullFlag)
    {
        rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
    }

    /* If RX overrun. */
    if (LPUART_STAT_OR_MASK & base->STAT)
    {
        /* Clear overrun flag, otherwise the RX does not work. */
        base->STAT = ((base->STAT & 0x3FE00000U) | LPUART_STAT_OR_MASK);
    }

    /* leave interrupt */
    rt_interrupt_leave();
}

/**
 * This function will handle cdc bulk out endpoint request.
 *
 * @param func the usb function object.
 * @param size request size.
 *
 * @return RT_EOK.
 */
static rt_err_t _ep_out_handler(ufunction_t func, rt_size_t size)
{
    rt_uint32_t level;
    struct vcom *data;

    RT_ASSERT(func != RT_NULL);

    RT_DEBUG_LOG(RT_DEBUG_USB, ("_ep_out_handler %d\n", size));
    
    data = (struct vcom*)func->user_data;
    /* receive data from USB VCOM */
    level = rt_hw_interrupt_disable();

    rt_ringbuffer_put(&data->rx_ringbuffer, data->ep_out->buffer, size);
    rt_hw_interrupt_enable(level);

    /* notify receive data */
    rt_hw_serial_isr(&data->serial);

    data->ep_out->request.buffer = data->ep_out->buffer;
    data->ep_out->request.size = EP_MAXPACKET(data->ep_out);
    data->ep_out->request.req_type = UIO_REQUEST_READ_MOST;    
    rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);

    return RT_EOK;
}

void UART4_IRQHandler(void)
{
    struct stm32_uart* uart;

    uart = &uart4;

    /* enter interrupt */
    rt_interrupt_enter();
    if(USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
    {
        rt_hw_serial_isr(&serial4, RT_SERIAL_EVENT_RX_IND);
        /* clear interrupt */
        USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
    }
    if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
    {
        /* clear interrupt */
        USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
    }
    if (USART_GetFlagStatus(uart->uart_device, USART_FLAG_ORE) == SET)
    {
        stm32_getc(&serial4);
    }

    /* leave interrupt */
    rt_interrupt_leave();
}

static void CME_UART_IRQHandler(struct rt_serial_device *serial)
{
    struct CME_M7_uart* uart;

    RT_ASSERT(serial != RT_NULL);
    uart = (struct CME_M7_uart *)serial->parent.user_data;

    if(UART_GetIntStatus(uart->uart_device, UART_Int_RxNotEmpty))
    {
        UART_ClearInt(uart->uart_device, UART_Int_RxNotEmpty);
        rt_hw_serial_isr(&serial2, RT_SERIAL_EVENT_RX_IND);
    }

    if(UART_GetIntStatus(uart->uart_device, UART_Int_RxThresholdReach))
    {
        UART_ClearInt(uart->uart_device, UART_Int_RxThresholdReach);
    }

    if(UART_GetIntStatus(uart->uart_device, UART_Int_OverrunError))
    {
        UART_ClearInt(uart->uart_device, UART_Int_OverrunError);
    }

    if(UART_GetIntStatus(uart->uart_device, UART_Int_FrameError))
    {
        UART_ClearInt(uart->uart_device, UART_Int_FrameError);
    }

    if(UART_GetIntStatus(uart->uart_device, UART_Int_ParityError))
    {
        UART_ClearInt(uart->uart_device, UART_Int_ParityError);
    }
}

void MFS3RX_IRQHandler(void)
{
	/* enter interrupt */
	rt_interrupt_enter();
	rt_hw_serial_isr(&serial3, RT_SERIAL_EVENT_RX_IND);
	/* leave interrupt */
	rt_interrupt_leave();
}

void USART1_IRQHandler(void) {
    struct usart_dev* usart_dev = Serial1.c_dev();

    rt_interrupt_enter();
    if (usart_dev->regs->SR & USART_SR_RXNE) {
        rt_hw_serial_isr(&serial1, RT_SERIAL_EVENT_RX_IND);
    }
    rt_interrupt_leave();
}

void USART2_Handler(void)
{
    /* enter interrupt */
    rt_interrupt_enter();

    rt_hw_serial_isr(&usart2.serial);

    /* leave interrupt */
    rt_interrupt_leave();
}

void dbg_uart_irq_handler(void * data)
{
    u32 IrqEn = DiagGetIsrEnReg();

    DiagSetIsrEnReg(0);

    rt_hw_serial_isr(&ameba_dbg_serial, RT_SERIAL_EVENT_RX_IND);
    
    DiagSetIsrEnReg(IrqEn);
}

/* Implementation of UART1 handler named in startup code. */
void UART1_RX_TX_IRQHandler(void)
{
    rt_interrupt_enter();
    rt_hw_serial_isr((struct rt_serial_device*)&_kinetis_serial, RT_SERIAL_EVENT_RX_IND);
    /* Disable receive data full and rx overrun interrupt */
    //UART_BWR_C2_RIE(g_uartBase[1], 0U);
    //UART_HAL_SetIntMode(g_uartBase[1], kUartIntRxOverrun, false);
    //UART_BWR_C2_TIE(g_uartBase[1], 0U);
    rt_interrupt_leave();
}

static void ameba_uart_irq(uint32_t id, SerialIrq event)
{
    struct rt_serial_device *serial = (struct rt_serial_device *)id;
	if(event == RxIrq)
    {
        rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
	}
	else if(event == TxIrq)
    {
	}
}

/*******************************************************************************
* Function Name  : USART1_IRQHandler
* Description    : This function handles USART1 global interrupt request.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void USART1_IRQHandler(void)
{
#ifdef RT_USING_UART1
    extern struct rt_device uart1_device;
    /* enter interrupt */
    rt_interrupt_enter();

    rt_hw_serial_isr(&uart1_device);

    /* leave interrupt */
    rt_interrupt_leave();
#endif
}