Function efm_eth_isr

bsp/efm32/drv_ethernet.c:357–410

/ * @brief * Interrupt handler of Ethernet device * * @details * * @note * * @param[in] dev * Pointer to device descriptor ******************************************************************************/

 *  Pointer to device descriptor
 ******************************************************************************/
void efm_eth_isr(rt_device_t dev)
{
    rt_uint8_t reg_eir, data;
    volatile rt_uint8_t cnt;

    /* Disable RX and other interrutps */
    data = EIE_PKTIE | EIE_INTIE;
    efm_eth_sendCmd(ENC28J60_BIT_FIELD_CLR, EIE, &data);

    /* Get interrupt flag */
    efm_eth_sendCmd(ENC28J60_READ_CTRL_REG, EIR, &reg_eir);

    data = 0;
    /* DMA completed */
    if (reg_eir & EIR_DMAIF)
    {
        data |= (rt_uint8_t)EIR_DMAIF;
    }
    /* Link Changed */
    if (reg_eir & EIR_LINKIF)
    {
        /* Read PHIR to clear the flag */
        efm_eth_readPhy(PHIR);
    }
    /* TX done */
    if (reg_eir & EIR_TXIF)
    {
        data |= (rt_uint8_t)EIR_TXIF;
    }
    /* TX error */
    if (reg_eir & EIR_TXERIF)
    {
        data |= (rt_uint8_t)EIR_TXERIF;
    }
    /* RX error */
    if (reg_eir & EIR_RXERIF)
    {
        data |= (rt_uint8_t)EIR_RXERIF;
    }
    /* Clear flags */
    efm_eth_sendCmd(ENC28J60_BIT_FIELD_CLR, EIR, &data);

    /* Get packet counter (Errata 6) */
    efm_eth_sendCmd(ENC28J60_READ_CTRL_REG, EPKTCNT, (rt_uint8_t *)&cnt);
    if (cnt)
    {
        /* Inform Ethernet thread */
        eth_device_ready(&eth_dev);
    }

    /* Enable other interrupts */
    data = EIE_INTIE;
    efm_eth_sendCmd(ENC28J60_BIT_FIELD_SET, EIE, &data);
}

/***************************************************************************//**
 * @brief