/**
  ******************************************************************************
  * File Name          : CAN.c
  * Description        : This file provides code for the configuration
  *                      of the CAN instances.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2022 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under Ultimate Liberty license
  * SLA0044, the "License"; You may not use this file except in compliance with
  * the License. You may obtain a copy of the License at:
  *                             www.st.com/SLA0044
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "can.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

CAN_HandleTypeDef hcan1;
CAN_HandleTypeDef hcan2;

/* CAN1 init function */
void MX_CAN1_Init(void)
{

  hcan1.Instance = CAN1;
  hcan1.Init.Prescaler = 3;
  hcan1.Init.Mode = CAN_MODE_NORMAL;
  hcan1.Init.SyncJumpWidth = CAN_SJW_1TQ;
  hcan1.Init.TimeSeg1 = CAN_BS1_10TQ;
  hcan1.Init.TimeSeg2 = CAN_BS2_3TQ;
  hcan1.Init.TimeTriggeredMode = DISABLE;
  hcan1.Init.AutoBusOff = DISABLE;
  hcan1.Init.AutoWakeUp = DISABLE;
  hcan1.Init.AutoRetransmission = DISABLE;
  hcan1.Init.ReceiveFifoLocked = DISABLE;
  hcan1.Init.TransmitFifoPriority = DISABLE;
  if (HAL_CAN_Init(&hcan1) != HAL_OK)
  {
    Error_Handler();
  }

}
/* CAN2 init function */
void MX_CAN2_Init(void)
{

  hcan2.Instance = CAN2;
  hcan2.Init.Prescaler = 3;
  hcan2.Init.Mode = CAN_MODE_NORMAL;
  hcan2.Init.SyncJumpWidth = CAN_SJW_1TQ;
  hcan2.Init.TimeSeg1 = CAN_BS1_10TQ;
  hcan2.Init.TimeSeg2 = CAN_BS2_3TQ;
  hcan2.Init.TimeTriggeredMode = DISABLE;
  hcan2.Init.AutoBusOff = DISABLE;
  hcan2.Init.AutoWakeUp = DISABLE;
  hcan2.Init.AutoRetransmission = DISABLE;
  hcan2.Init.ReceiveFifoLocked = DISABLE;
  hcan2.Init.TransmitFifoPriority = DISABLE;
  if (HAL_CAN_Init(&hcan2) != HAL_OK)
  {
    Error_Handler();
  }

}

static uint32_t HAL_RCC_CAN1_CLK_ENABLED=0;

void HAL_CAN_MspInit(CAN_HandleTypeDef* canHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(canHandle->Instance==CAN1)
  {
  /* USER CODE BEGIN CAN1_MspInit 0 */

  /* USER CODE END CAN1_MspInit 0 */
    /* CAN1 clock enable */
    HAL_RCC_CAN1_CLK_ENABLED++;
    if(HAL_RCC_CAN1_CLK_ENABLED==1){
      __HAL_RCC_CAN1_CLK_ENABLE();
    }

    __HAL_RCC_GPIOD_CLK_ENABLE();
    /**CAN1 GPIO Configuration
    PD0     ------> CAN1_RX
    PD1     ------> CAN1_TX
    */
    GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF9_CAN1;
    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);

    /* CAN1 interrupt Init */
    HAL_NVIC_SetPriority(CAN1_RX0_IRQn, 6, 0);
    HAL_NVIC_EnableIRQ(CAN1_RX0_IRQn);
  /* USER CODE BEGIN CAN1_MspInit 1 */

  /* USER CODE END CAN1_MspInit 1 */
  }
  else if(canHandle->Instance==CAN2)
  {
  /* USER CODE BEGIN CAN2_MspInit 0 */

  /* USER CODE END CAN2_MspInit 0 */
    /* CAN2 clock enable */
    __HAL_RCC_CAN2_CLK_ENABLE();
    HAL_RCC_CAN1_CLK_ENABLED++;
    if(HAL_RCC_CAN1_CLK_ENABLED==1){
      __HAL_RCC_CAN1_CLK_ENABLE();
    }

    __HAL_RCC_GPIOB_CLK_ENABLE();
    /**CAN2 GPIO Configuration
    PB5     ------> CAN2_RX
    PB6     ------> CAN2_TX
    */
    GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF9_CAN2;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    /* CAN2 interrupt Init */
    HAL_NVIC_SetPriority(CAN2_RX0_IRQn, 6, 0);
    HAL_NVIC_EnableIRQ(CAN2_RX0_IRQn);
  /* USER CODE BEGIN CAN2_MspInit 1 */

  /* USER CODE END CAN2_MspInit 1 */
  }
}

void HAL_CAN_MspDeInit(CAN_HandleTypeDef* canHandle)
{

  if(canHandle->Instance==CAN1)
  {
  /* USER CODE BEGIN CAN1_MspDeInit 0 */

  /* USER CODE END CAN1_MspDeInit 0 */
    /* Peripheral clock disable */
    HAL_RCC_CAN1_CLK_ENABLED--;
    if(HAL_RCC_CAN1_CLK_ENABLED==0){
      __HAL_RCC_CAN1_CLK_DISABLE();
    }

    /**CAN1 GPIO Configuration
    PD0     ------> CAN1_RX
    PD1     ------> CAN1_TX
    */
    HAL_GPIO_DeInit(GPIOD, GPIO_PIN_0|GPIO_PIN_1);

    /* CAN1 interrupt Deinit */
    HAL_NVIC_DisableIRQ(CAN1_RX0_IRQn);
  /* USER CODE BEGIN CAN1_MspDeInit 1 */

  /* USER CODE END CAN1_MspDeInit 1 */
  }
  else if(canHandle->Instance==CAN2)
  {
  /* USER CODE BEGIN CAN2_MspDeInit 0 */

  /* USER CODE END CAN2_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_CAN2_CLK_DISABLE();
    HAL_RCC_CAN1_CLK_ENABLED--;
    if(HAL_RCC_CAN1_CLK_ENABLED==0){
      __HAL_RCC_CAN1_CLK_DISABLE();
    }

    /**CAN2 GPIO Configuration
    PB5     ------> CAN2_RX
    PB6     ------> CAN2_TX
    */
    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_5|GPIO_PIN_6);

    /* CAN2 interrupt Deinit */
    HAL_NVIC_DisableIRQ(CAN2_RX0_IRQn);
  /* USER CODE BEGIN CAN2_MspDeInit 1 */

  /* USER CODE END CAN2_MspDeInit 1 */
  }
}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/