view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dcmi_ex.c @ 549:469e93f8633e

Only execute motion detection functions if features is enabled: Added compile switch around function and, in case the switch is on, an additional check if the features is activated by the settings. Added function to add an additional level of brightness to the backlight: The new interface allows to increase the brightness of the display on top of the normal setting. This may be used to indicate focus state to the user if motion detection is enabled
author Ideenmodellierer
date Sun, 08 Nov 2020 18:36:02 +0100
parents c78bcbd5deda
children
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/**
  ******************************************************************************
  * @file    stm32f4xx_hal_dcmi_ex.c
  * @author  MCD Application Team
  * @brief   DCMI Extension HAL module driver
  *          This file provides firmware functions to manage the following
  *          functionalities of DCMI extension peripheral:
  *           + Extension features functions
  *
  @verbatim
  ==============================================================================
               ##### DCMI peripheral extension features  #####
  ==============================================================================

  [..] Comparing to other previous devices, the DCMI interface for STM32F446xx 
       devices contains the following additional features :

       (+) Support of Black and White cameras 

                     ##### How to use this driver #####
  ==============================================================================
  [..] This driver provides functions to manage the Black and White feature

  @endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"

/** @addtogroup STM32F4xx_HAL_Driver
  * @{
  */
/** @defgroup DCMIEx DCMIEx
  * @brief DCMI Extended HAL module driver
  * @{
  */

#ifdef HAL_DCMI_MODULE_ENABLED

#if defined(STM32F407xx) || defined(STM32F417xx) || defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) ||\
    defined(STM32F439xx) || defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/

/** @defgroup DCMIEx_Exported_Functions DCMI Extended Exported Functions
  * @{
  */

/**
  * @}
  */

/** @addtogroup DCMI_Exported_Functions_Group1 Initialization and Configuration functions
  * @{
  */

/**
  * @brief  Initializes the DCMI according to the specified
  *         parameters in the DCMI_InitTypeDef and create the associated handle.
  * @param  hdcmi pointer to a DCMI_HandleTypeDef structure that contains
  *                the configuration information for DCMI.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DCMI_Init(DCMI_HandleTypeDef *hdcmi)
{
  /* Check the DCMI peripheral state */
  if(hdcmi == NULL)
  {
     return HAL_ERROR;
  }

  /* Check function parameters */
  assert_param(IS_DCMI_ALL_INSTANCE(hdcmi->Instance));
  assert_param(IS_DCMI_PCKPOLARITY(hdcmi->Init.PCKPolarity));
  assert_param(IS_DCMI_VSPOLARITY(hdcmi->Init.VSPolarity));
  assert_param(IS_DCMI_HSPOLARITY(hdcmi->Init.HSPolarity));
  assert_param(IS_DCMI_SYNCHRO(hdcmi->Init.SynchroMode));
  assert_param(IS_DCMI_CAPTURE_RATE(hdcmi->Init.CaptureRate));
  assert_param(IS_DCMI_EXTENDED_DATA(hdcmi->Init.ExtendedDataMode));
  assert_param(IS_DCMI_MODE_JPEG(hdcmi->Init.JPEGMode));
#if defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
  assert_param(IS_DCMI_BYTE_SELECT_MODE(hdcmi->Init.ByteSelectMode));
  assert_param(IS_DCMI_BYTE_SELECT_START(hdcmi->Init.ByteSelectStart));
  assert_param(IS_DCMI_LINE_SELECT_MODE(hdcmi->Init.LineSelectMode));
  assert_param(IS_DCMI_LINE_SELECT_START(hdcmi->Init.LineSelectStart));
#endif /* STM32F446xx || STM32F469xx || STM32F479xx */
  if(hdcmi->State == HAL_DCMI_STATE_RESET)
  {
    /* Init the low level hardware */
    HAL_DCMI_MspInit(hdcmi);
  }

  /* Change the DCMI state */
  hdcmi->State = HAL_DCMI_STATE_BUSY;
                          /* Configures the HS, VS, DE and PC polarity */
  hdcmi->Instance->CR &= ~(DCMI_CR_PCKPOL | DCMI_CR_HSPOL  | DCMI_CR_VSPOL  | DCMI_CR_EDM_0 |\
                           DCMI_CR_EDM_1  | DCMI_CR_FCRC_0 | DCMI_CR_FCRC_1 | DCMI_CR_JPEG  |\
                           DCMI_CR_ESS
#if defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
                           | DCMI_CR_BSM_0 | DCMI_CR_BSM_1 | DCMI_CR_OEBS |\
                           DCMI_CR_LSM | DCMI_CR_OELS
#endif /* STM32F446xx || STM32F469xx || STM32F479xx */
                           );
  hdcmi->Instance->CR |=  (uint32_t)(hdcmi->Init.SynchroMode | hdcmi->Init.CaptureRate |\
                                     hdcmi->Init.VSPolarity  | hdcmi->Init.HSPolarity  |\
                                     hdcmi->Init.PCKPolarity | hdcmi->Init.ExtendedDataMode |\
                                     hdcmi->Init.JPEGMode 
#if defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
                                     | hdcmi->Init.ByteSelectMode |\
                                     hdcmi->Init.ByteSelectStart | hdcmi->Init.LineSelectMode |\
                                     hdcmi->Init.LineSelectStart
#endif /* STM32F446xx || STM32F469xx || STM32F479xx */
                                     );
  if(hdcmi->Init.SynchroMode == DCMI_SYNCHRO_EMBEDDED)
  {
    hdcmi->Instance->ESCR = (((uint32_t)hdcmi->Init.SyncroCode.FrameStartCode)    |
                             ((uint32_t)hdcmi->Init.SyncroCode.LineStartCode << DCMI_POSITION_ESCR_LSC)|
                             ((uint32_t)hdcmi->Init.SyncroCode.LineEndCode << DCMI_POSITION_ESCR_LEC) |
                             ((uint32_t)hdcmi->Init.SyncroCode.FrameEndCode << DCMI_POSITION_ESCR_FEC));

  }

  /* Enable the Line, Vsync, Error and Overrun interrupts */
  __HAL_DCMI_ENABLE_IT(hdcmi, DCMI_IT_LINE | DCMI_IT_VSYNC | DCMI_IT_ERR | DCMI_IT_OVR);

  /* Update error code */
  hdcmi->ErrorCode = HAL_DCMI_ERROR_NONE;

  /* Initialize the DCMI state*/
  hdcmi->State  = HAL_DCMI_STATE_READY;

  return HAL_OK;
}
  
/**
  * @}
  */
#endif /* STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx ||\
          STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */
#endif /* HAL_DCMI_MODULE_ENABLED */
/**
  * @}
  */

/**
  * @}
  */

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