/**
  ******************************************************************************
  * @file    main.c
  * @author  fire
  * @version V1.0
  * @date    2019-xx-xx
  * @brief   eth
  ******************************************************************************
  * @attention
  *
  * 实验平台:野火 STM32 F429 开发板 
  * 论坛    :http://www.firebbs.cn
  * 淘宝    :http://firestm32.taobao.com
  *
  ******************************************************************************
  */
#include "bsp_eth.h"
#include "bsp_led.h"
#include "main.h"
#include "tos_k.h"

/* Global Ethernet handle */
ETH_HandleTypeDef heth;

#if defined ( __ICCARM__ ) /*!< IAR Compiler */
  #pragma data_alignment=4   
#endif
__ALIGN_BEGIN ETH_DMADescTypeDef  DMARxDscrTab[ETH_RXBUFNB] __ALIGN_END;/* Ethernet Rx MA Descriptor */

#if defined ( __ICCARM__ ) /*!< IAR Compiler */
  #pragma data_alignment=4   
#endif
__ALIGN_BEGIN ETH_DMADescTypeDef  DMATxDscrTab[ETH_TXBUFNB] __ALIGN_END;/* Ethernet Tx DMA Descriptor */

#if defined ( __ICCARM__ ) /*!< IAR Compiler */
  #pragma data_alignment=4   
#endif
__ALIGN_BEGIN uint8_t Rx_Buff[ETH_RXBUFNB][ETH_RX_BUF_SIZE] __ALIGN_END; /* Ethernet Receive Buffer */

#if defined ( __ICCARM__ ) /*!< IAR Compiler */
  #pragma data_alignment=4   
#endif
__ALIGN_BEGIN uint8_t Tx_Buff[ETH_TXBUFNB][ETH_TX_BUF_SIZE] __ALIGN_END; /* Ethernet Transmit Buffer */


void HAL_ETH_MspInit(ETH_HandleTypeDef* ethHandle)
{
  GPIO_InitTypeDef GPIO_InitStruct;
  if(ethHandle->Instance==ETH)
  {
  /* USER CODE BEGIN ETH_MspInit 0 */

  /* USER CODE END ETH_MspInit 0 */
//    /* Enable Peripheral clock */
//    __HAL_RCC_ETH_CLK_ENABLE();
  
    /**ETH GPIO Configuration    
    PC1     ------> ETH_MDC
    PA1     ------> ETH_REF_CLK
    PA2     ------> ETH_MDIO
    PA7     ------> ETH_CRS_DV
    PC4     ------> ETH_RXD0
    PC5     ------> ETH_RXD1
    PB11     ------> ETH_TX_EN
    PG13     ------> ETH_TXD0
    PG14     ------> ETH_TXD1 
    */
    GPIO_InitStruct.Pin = ETH_MDC_Pin|ETH_RXD0_Pin|ETH_RXD1_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = ETH_REF_CLK_Pin|ETH_MDIO_Pin|ETH_CRS_DV_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = ETH_TX_EN_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
    HAL_GPIO_Init(ETH_TX_EN_GPIO_Port, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = ETH_TXD0_Pin|ETH_TXD1_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF11_ETH;
    HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);

  /* USER CODE BEGIN ETH_MspInit 1 */
  /* Enable the Ethernet global Interrupt */
  HAL_NVIC_SetPriority(ETH_IRQn, 6, 0);
  HAL_NVIC_EnableIRQ(ETH_IRQn);
  
  /* Enable ETHERNET clock  */
  __HAL_RCC_ETH_CLK_ENABLE();
  /* USER CODE END ETH_MspInit 1 */
  }
}

static void Eth_Reset(void)
{ 
   /* PHY RESET: PI1 */
  GPIO_InitTypeDef GPIO_InitStructure;
  __HAL_RCC_GPIOI_CLK_ENABLE();
  
  GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStructure.Pull  = GPIO_PULLUP;
  GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
  GPIO_InitStructure.Pin = GPIO_PIN_1;
  HAL_GPIO_Init(GPIOI, &GPIO_InitStructure);
  HAL_GPIO_WritePin(GPIOI, GPIO_PIN_1, GPIO_PIN_RESET);
  HAL_Delay(5);
  HAL_GPIO_WritePin(GPIOI, GPIO_PIN_1, GPIO_PIN_SET);
  HAL_Delay(5);
}

void HAL_ETH_MspDeInit(ETH_HandleTypeDef* ethHandle)
{
  if(ethHandle->Instance==ETH)
  {
  /* USER CODE BEGIN ETH_MspDeInit 0 */

  /* USER CODE END ETH_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_ETH_CLK_DISABLE();
  
    /**ETH GPIO Configuration    
    PC1     ------> ETH_MDC
    PA1     ------> ETH_REF_CLK
    PA2     ------> ETH_MDIO
    PA7     ------> ETH_CRS_DV
    PC4     ------> ETH_RXD0
    PC5     ------> ETH_RXD1
    PB11     ------> ETH_TX_EN
    PG13     ------> ETH_TXD0
    PG14     ------> ETH_TXD1 
    */
    HAL_GPIO_DeInit(GPIOC, ETH_MDC_Pin|ETH_RXD0_Pin|ETH_RXD1_Pin);

    HAL_GPIO_DeInit(GPIOA, ETH_REF_CLK_Pin|ETH_MDIO_Pin|ETH_CRS_DV_Pin);

    HAL_GPIO_DeInit(ETH_TX_EN_GPIO_Port, ETH_TX_EN_Pin);

    HAL_GPIO_DeInit(GPIOG, ETH_TXD0_Pin|ETH_TXD1_Pin);

  /* USER CODE BEGIN ETH_MspDeInit 1 */

  /* USER CODE END ETH_MspDeInit 1 */
  }
}

HAL_StatusTypeDef Bsp_Eth_Init(void)
{
  HAL_StatusTypeDef ret;
  
  uint8_t MACAddr[6] ;
  
  HAL_ETH_DeInit(&heth);
  
  Eth_Reset();
  
  ETH->DMABMR |= ETH_DMABMR_SR;
  
  /* Init ETH */
  MACAddr[0] = 0x02;
  MACAddr[1] = 0x00;
  MACAddr[2] = 0x00;
  MACAddr[3] = 0x00;
  MACAddr[4] = 0x00;
  MACAddr[5] = 0x00;
  heth.Instance = ETH;
  heth.Init.AutoNegotiation = ETH_AUTONEGOTIATION_ENABLE;
  heth.Init.PhyAddress = LAN8720_PHY_ADDRESS;
  heth.Init.MACAddr = &MACAddr[0];
  heth.Init.RxMode = ETH_RXINTERRUPT_MODE;  // rx mode   
  heth.Init.ChecksumMode = ETH_CHECKSUM_BY_HARDWARE;
  heth.Init.MediaInterface = ETH_MEDIA_INTERFACE_RMII;
  heth.Init.Speed = ETH_SPEED_100M;       //speed
  heth.Init.DuplexMode = ETH_MODE_FULLDUPLEX;
  
	/* configure ethernet peripheral (GPIOs, clocks, MAC, DMA) */
  ret = HAL_ETH_Init(&heth);
	if (ret == HAL_OK)
		printf("eth hardware init sucess...\n");
  else
    printf("eth hardware init faild...\n");
    
  /* Initialize Tx Descriptors list: Chain Mode */
  HAL_ETH_DMATxDescListInit(&heth, DMATxDscrTab, &Tx_Buff[0][0], ETH_TXBUFNB);
     
  /* Initialize Rx Descriptors list: Chain Mode  */
  HAL_ETH_DMARxDescListInit(&heth, DMARxDscrTab, &Rx_Buff[0][0], ETH_RXBUFNB);
    /* Enable MAC and DMA transmission and reception */    
  return ret;
}


void ETH_IRQHandler(void)
{
    tos_knl_irq_enter();
    
    HAL_ETH_IRQHandler(&heth);
    
    tos_knl_irq_leave();
}

/**
  * @brief  Ethernet Rx Transfer completed callback
  * @param  heth: ETH handle
  * @retval None
  */
extern k_sem_t s_xSemaphore;
void HAL_ETH_RxCpltCallback(ETH_HandleTypeDef *heth)
{
  LED2_TOGGLE;

  tos_sem_post(&s_xSemaphore);

}

void HAL_ETH_TxCpltCallback(ETH_HandleTypeDef *heth)
{
  ;
}

void HAL_ETH_ErrorCallback(ETH_HandleTypeDef *heth)
{
    printf("eth err\n");
}