/**
  ******************************************************************************
  * File Name          : I2C.c
  * Description        : This file provides code for the configuration
  *                      of the I2C instances.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2020 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 "i2c.h"
#include "oled.h"
#include "app_debug.h"

/* USER CODE BEGIN 0 */
uint8_t i2c_timeout = 0;
/* USER CODE END 0 */

I2C_HandleTypeDef hi2c1;

/* I2C1 init function */
void MX_I2C1_Init(void)
{

  hi2c1.Instance = I2C1;
  hi2c1.Init.Timing = 0x0000020B; //0x0010020B; 
  hi2c1.Init.OwnAddress1 = 0;
  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c1.Init.OwnAddress2 = 0;
  hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
  {
		APP_DEBUG("I2C1 Init error!\r\n");
    Error_Handler();
  }
  /** Configure Analogue filter 
  */
  if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
  {
		APP_DEBUG("I2C1 config analog error!\r\n");
    Error_Handler();
  }
  /** Configure Digital filter 
  */
  if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
  {
		APP_DEBUG("I2C1 config digital error!\r\n");
    Error_Handler();
  }

}

void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(i2cHandle->Instance==I2C1)
  {
  /* USER CODE BEGIN I2C1_MspInit 0 */

  /* USER CODE END I2C1_MspInit 0 */
  
    __HAL_RCC_GPIOB_CLK_ENABLE();
    /**I2C1 GPIO Configuration    
    PB6     ------> I2C1_SCL
    PB7     ------> I2C1_SDA 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF1_I2C1;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    /* I2C1 clock enable */
    __HAL_RCC_I2C1_CLK_ENABLE();

    /* I2C1 interrupt Init */
    HAL_NVIC_SetPriority(I2C1_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(I2C1_IRQn);
  /* USER CODE BEGIN I2C1_MspInit 1 */

  /* USER CODE END I2C1_MspInit 1 */
  }
}

void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle)
{

  if(i2cHandle->Instance==I2C1)
  {
  /* USER CODE BEGIN I2C1_MspDeInit 0 */

  /* USER CODE END I2C1_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_I2C1_CLK_DISABLE();
  
    /**I2C1 GPIO Configuration    
    PB6     ------> I2C1_SCL
    PB7     ------> I2C1_SDA 
    */
    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_6|GPIO_PIN_7);

    /* I2C1 interrupt Deinit */
    HAL_NVIC_DisableIRQ(I2C1_IRQn);
  /* USER CODE BEGIN I2C1_MspDeInit 1 */

  /* USER CODE END I2C1_MspDeInit 1 */
  }
} 

/* USER CODE BEGIN 1 */
#if 1
void I2C_Write_Data(uint16_t i2c_adr, uint8_t* buf,  uint16_t size)
{
	i2c_timeout = 0;
  //do
  //{
    if(HAL_I2C_Master_Transmit_IT(&hi2c1, i2c_adr, buf, size)!= HAL_OK){
			//APP_DEBUG("I2C1 write error!\r\n");
      //Error_Handler();
    } 
    while (HAL_I2C_GetState(&hi2c1) != HAL_I2C_STATE_READY && i2c_timeout <= 1); 
  //}while(HAL_I2C_GetError(&hi2c1) == HAL_I2C_ERROR_AF && i2c_timeout <= 1);
}
#endif

#if 0
void I2C_Write_Data(uint16_t i2c_adr, uint8_t* buf,  uint16_t size)
{
//	do
 // {
    if(HAL_I2C_Master_Transmit_IT(&hi2c1, i2c_adr, buf, size)!= HAL_OK){
      //Error_Handler();
    } 
    while (HAL_I2C_GetState(&hi2c1) != HAL_I2C_STATE_READY); 
  //}while(HAL_I2C_GetError(&hi2c1) == HAL_I2C_ERROR_AF);
}
#endif

/**
  * @brief  I2C error callbacks.
  * @param  I2cHandle: I2C handle
  * @note   This example shows a simple way to report transfer error, and you c
  *         add your own implementation.
  * @retval None
  */
void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *I2cHandle)
{
  if (HAL_I2C_GetError(I2cHandle) != HAL_I2C_ERROR_AF)
  {
		APP_DEBUG("I2C1 callback error!\r\n");
    //Error_Handler();
  }
}

/* USER CODE END 1 */

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