/********************************** (C) COPYRIGHT *******************************
 * File Name          : ch32v20x_it.c
 * Author             : WCH
 * Version            : V1.0.0
 * Date               : 2021/06/06
 * Description        : Main Interrupt Service Routines.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for 
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#include "ch32v20x_it.h"
#include "eth_driver.h"
#include "bsp_uart.h"

void NMI_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
void HardFault_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
void ETH_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
void TIM2_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
void DMA1_Channel7_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));

/*********************************************************************
 * @fn      NMI_Handler
 *
 * @brief   This function handles NMI exception.
 *
 * @return  none
 */
void NMI_Handler(void)
{
    /**/
}

/*********************************************************************
 * @fn      HardFault_Handler
 *
 * @brief   This function handles Hard Fault exception.
 *
 * @return  none
 */
void HardFault_Handler(void)
{
    printf("HardFault_Handler\r\n");
    printf("mcause:%08x\r\n",__get_MCAUSE());
    printf("mtval:%08x\r\n",__get_MTVAL());
    printf("mepc:%08x\r\n",__get_MEPC());
    NVIC_SystemReset();
    while (1);
}

/*********************************************************************
 * @fn      ETH_IRQHandler
 *
 * @brief   This function handles ETH exception.
 *
 * @return  none
 */
void ETH_IRQHandler(void)
{
    WCHNET_ETHIsr();
}

/*********************************************************************
 * @fn      TIM2_IRQHandler
 *
 * @brief   This function handles TIM2 exception.
 *
 * @return  none
 */
void TIM2_IRQHandler(void)
{
    WCHNET_TimeIsr(WCHNETTIMERPERIOD);
    TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
}

/*********************************************************************
 * @fn      DMA1_Channel7_IRQHandler
 *
 * @brief   uart2 DMA Tx completion interrupt.
 *
 * @return  none
 */
void DMA1_Channel7_IRQHandler(void)
{
    if(DMA_GetITStatus(DMA1_IT_TC7))
    {
        DMA_Cmd(DMA1_Channel7,DISABLE);
        uart_data_t.uart_tx_dma_state = IDLE;
        uart_data_t.tx_read++;
        /* Prevent access from out-of-bounds */
        uart_data_t.tx_read = (uart_data_t.tx_read)%UART_TX_BUF_NUM;
        uart_data_t.tx_remainBuffNum++;
        DMA_ClearITPendingBit(DMA1_IT_TC7);
    }
}