stm32f7xx_hal_i2c_ex.c

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/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"

#ifdef HAL_I2C_MODULE_ENABLED

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter)
{
  /* Check the parameters */
  assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
  assert_param(IS_I2C_ANALOG_FILTER(AnalogFilter));
  
  if(hi2c->State == HAL_I2C_STATE_READY)
  {
    /* Process Locked */
    __HAL_LOCK(hi2c);
    
    hi2c->State = HAL_I2C_STATE_BUSY;
    
    /* Disable the selected I2C peripheral */
    __HAL_I2C_DISABLE(hi2c);
    
    /* Reset I2Cx ANOFF bit */
    hi2c->Instance->CR1 &= ~(I2C_CR1_ANFOFF);
    
    /* Set analog filter bit*/
    hi2c->Instance->CR1 |= AnalogFilter;
    
    __HAL_I2C_ENABLE(hi2c);
    
    hi2c->State = HAL_I2C_STATE_READY;
    
    /* Process Unlocked */
    __HAL_UNLOCK(hi2c);
    
    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

HAL_StatusTypeDef HAL_I2CEx_ConfigDigitalFilter(I2C_HandleTypeDef *hi2c, uint32_t DigitalFilter)
{
  uint32_t tmpreg = 0;
  
  /* Check the parameters */
  assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
  assert_param(IS_I2C_DIGITAL_FILTER(DigitalFilter));
  
  if(hi2c->State == HAL_I2C_STATE_READY)
  {
    /* Process Locked */
    __HAL_LOCK(hi2c);
    
    hi2c->State = HAL_I2C_STATE_BUSY;
    
    /* Disable the selected I2C peripheral */
    __HAL_I2C_DISABLE(hi2c);
    
    /* Get the old register value */
    tmpreg = hi2c->Instance->CR1;
    
    /* Reset I2Cx DNF bits [11:8] */
    tmpreg &= ~(I2C_CR1_DNF);
    
    /* Set I2Cx DNF coefficient */
    tmpreg |= DigitalFilter << 8;
    
    /* Store the new register value */
    hi2c->Instance->CR1 = tmpreg;
    
    __HAL_I2C_ENABLE(hi2c);
    
    hi2c->State = HAL_I2C_STATE_READY;
    
    /* Process Unlocked */
    __HAL_UNLOCK(hi2c);
    
    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

#if defined (STM32F765xx) || defined (STM32F767xx) || defined (STM32F769xx) || defined (STM32F777xx) || defined (STM32F779xx)

void HAL_I2CEx_EnableFastModePlus(uint32_t ConfigFastModePlus)
{
  /* Check the parameter */
  assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));
  
  /* Enable SYSCFG clock */
  __HAL_RCC_SYSCFG_CLK_ENABLE();
  
  /* Enable fast mode plus driving capability for selected pin */
  SET_BIT(SYSCFG->PMC, (uint32_t)ConfigFastModePlus);
}

void HAL_I2CEx_DisableFastModePlus(uint32_t ConfigFastModePlus)
{
  /* Check the parameter */
  assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));
  
  /* Enable SYSCFG clock */
  __HAL_RCC_SYSCFG_CLK_ENABLE();
  
  /* Disable fast mode plus driving capability for selected pin */
  CLEAR_BIT(SYSCFG->PMC, (uint32_t)ConfigFastModePlus);
}
#endif /* STM32F767xx || STM32F769xx || STM32F777xx || STM32F779xx */

#endif /* HAL_I2C_MODULE_ENABLED */

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