text: /**
    ******************************************************************************
    * @file    stm32f4xx_dcmi.h
    * @author  MCD Application Team
    * @version V1.2.1
    * @date    19-September-2013
    * @brief   This file contains all the functions prototypes for the DCMI firmware library.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
    *
    * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
    * You may not use this file except in compliance with the License.
    * You may obtain a copy of the License at:
    *
    *        http://www.st.com/software_license_agreement_liberty_v2
    *
    * Unless required by applicable law or agreed to in writing, software 
    * distributed under the License is distributed on an "AS IS" BASIS, 
    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    * See the License for the specific language governing permissions and
    * limitations under the License.
    *
    ******************************************************************************
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32F4xx_DCMI_H
  #define __STM32F4xx_DCMI_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f4xx.h"
  
  /** @addtogroup STM32F4xx_StdPeriph_Driver
    * @{
    */
  
  /** @addtogroup DCMI
    * @{
    */ 
  
  /* Exported types ------------------------------------------------------------*/
  /** 
    * @brief   DCMI Init structure definition  
    */ 
  typedef struct
  {
    uint16_t DCMI_CaptureMode;      /*!< Specifies the Capture Mode: Continuous or Snapshot.
                                         This parameter can be a value of @ref DCMI_Capture_Mode */
  
    uint16_t DCMI_SynchroMode;      /*!< Specifies the Synchronization Mode: Hardware or Embedded.
                                         This parameter can be a value of @ref DCMI_Synchronization_Mode */
  
    uint16_t DCMI_PCKPolarity;      /*!< Specifies the Pixel clock polarity: Falling or Rising.
                                         This parameter can be a value of @ref DCMI_PIXCK_Polarity */
  
    uint16_t DCMI_VSPolarity;       /*!< Specifies the Vertical synchronization polarity: High or Low.
                                         This parameter can be a value of @ref DCMI_VSYNC_Polarity */
  
    uint16_t DCMI_HSPolarity;       /*!< Specifies the Horizontal synchronization polarity: High or Low.
                                         This parameter can be a value of @ref DCMI_HSYNC_Polarity */
  
    uint16_t DCMI_CaptureRate;      /*!< Specifies the frequency of frame capture: All, 1/2 or 1/4.
                                         This parameter can be a value of @ref DCMI_Capture_Rate */
  
    uint16_t DCMI_ExtendedDataMode; /*!< Specifies the data width: 8-bit, 10-bit, 12-bit or 14-bit.
                                         This parameter can be a value of @ref DCMI_Extended_Data_Mode */
  } DCMI_InitTypeDef;
  
  /** 
    * @brief   DCMI CROP Init structure definition  
    */ 
  typedef struct
  {
    uint16_t DCMI_VerticalStartLine;      /*!< Specifies the Vertical start line count from which the image capture
                                               will start. This parameter can be a value between 0x00 and 0x1FFF */
  
    uint16_t DCMI_HorizontalOffsetCount;  /*!< Specifies the number of pixel clocks to count before starting a capture.
                                               This parameter can be a value between 0x00 and 0x3FFF */
  
    uint16_t DCMI_VerticalLineCount;      /*!< Specifies the number of lines to be captured from the starting point.
                                               This parameter can be a value between 0x00 and 0x3FFF */
  
    uint16_t DCMI_CaptureCount;           /*!< Specifies the number of pixel clocks to be captured from the starting
                                               point on the same line.
                                               This parameter can be a value between 0x00 and 0x3FFF */
  } DCMI_CROPInitTypeDef;
  
  /** 
    * @brief   DCMI Embedded Synchronisation CODE Init structure definition  
    */ 
  typedef struct
  {
    uint8_t DCMI_FrameStartCode; /*!< Specifies the code of the frame start delimiter. */
    uint8_t DCMI_LineStartCode;  /*!< Specifies the code of the line start delimiter. */
    uint8_t DCMI_LineEndCode;    /*!< Specifies the code of the line end delimiter. */
    uint8_t DCMI_FrameEndCode;   /*!< Specifies the code of the frame end delimiter. */
  } DCMI_CodesInitTypeDef;
  
  /* Exported constants --------------------------------------------------------*/
  
  /** @defgroup DCMI_Exported_Constants
    * @{
    */
  
  /** @defgroup DCMI_Capture_Mode 
    * @{
    */ 
  #define DCMI_CaptureMode_Continuous    ((uint16_t)0x0000) /*!< The received data are transferred continuously 
                                                                 into the destination memory through the DMA */
  #define DCMI_CaptureMode_SnapShot      ((uint16_t)0x0002) /*!< Once activated, the interface waits for the start of 
                                                                 frame and then transfers a single frame through the DMA */
  #define IS_DCMI_CAPTURE_MODE(MODE)(((MODE) == DCMI_CaptureMode_Continuous) || \
                                     ((MODE) == DCMI_CaptureMode_SnapShot))
  /**
    * @}
    */ 
  
  
  /** @defgroup DCMI_Synchronization_Mode
    * @{
    */ 
  #define DCMI_SynchroMode_Hardware    ((uint16_t)0x0000) /*!< Hardware synchronization data capture (frame/line start/stop)
                                                               is synchronized with the HSYNC/VSYNC signals */
  #define DCMI_SynchroMode_Embedded    ((uint16_t)0x0010) /*!< Embedded synchronization data capture is synchronized with 
                                                               synchronization codes embedded in the data flow */
  #define IS_DCMI_SYNCHRO(MODE)(((MODE) == DCMI_SynchroMode_Hardware) || \
                                ((MODE) == DCMI_SynchroMode_Embedded))
  /**
    * @}
    */ 
  
  
  /** @defgroup DCMI_PIXCK_Polarity 
    * @{
    */ 
  #define DCMI_PCKPolarity_Falling    ((uint16_t)0x0000) /*!< Pixel clock active on Falling edge */
  #define DCMI_PCKPolarity_Rising     ((uint16_t)0x0020) /*!< Pixel clock active on Rising edge */
  #define IS_DCMI_PCKPOLARITY(POLARITY)(((POLARITY) == DCMI_PCKPolarity_Falling) || \
                                        ((POLARITY) == DCMI_PCKPolarity_Rising))
  /**
    * @}
    */ 
  
  
  /** @defgroup DCMI_VSYNC_Polarity 
    * @{
    */ 
  #define DCMI_VSPolarity_Low     ((uint16_t)0x0000) /*!< Vertical synchronization active Low */
  #define DCMI_VSPolarity_High    ((uint16_t)0x0080) /*!< Vertical synchronization active High */
  #define IS_DCMI_VSPOLARITY(POLARITY)(((POLARITY) == DCMI_VSPolarity_Low) || \
                                       ((POLARITY) == DCMI_VSPolarity_High))
  /**
    * @}
    */ 
  
  
  /** @defgroup DCMI_HSYNC_Polarity 
    * @{
    */ 
  #define DCMI_HSPolarity_Low     ((uint16_t)0x0000) /*!< Horizontal synchronization active Low */
  #define DCMI_HSPolarity_High    ((uint16_t)0x0040) /*!< Horizontal synchronization active High */
  #define IS_DCMI_HSPOLARITY(POLARITY)(((POLARITY) == DCMI_HSPolarity_Low) || \
                                       ((POLARITY) == DCMI_HSPolarity_High))
  /**
    * @}
    */ 
  
  
  /** @defgroup DCMI_Capture_Rate 
    * @{
    */ 
  #define DCMI_CaptureRate_All_Frame     ((uint16_t)0x0000) /*!< All frames are captured */
  #define DCMI_CaptureRate_1of2_Frame    ((uint16_t)0x0100) /*!< Every alternate frame captured */
  #define DCMI_CaptureRate_1of4_Frame    ((uint16_t)0x0200) /*!< One frame in 4 frames captured */
  #define IS_DCMI_CAPTURE_RATE(RATE) (((RATE) == DCMI_CaptureRate_All_Frame) || \
                                      ((RATE) == DCMI_CaptureRate_1of2_Frame) ||\
                                      ((RATE) == DCMI_CaptureRate_1of4_Frame))
  /**
    * @}
    */ 
  
  
  /** @defgroup DCMI_Extended_Data_Mode 
    * @{
    */ 
  #define DCMI_ExtendedDataMode_8b     ((uint16_t)0x0000) /*!< Interface captures 8-bit data on every pixel clock */
  #define DCMI_ExtendedDataMode_10b    ((uint16_t)0x0400) /*!< Interface captures 10-bit data on every pixel clock */
  #define DCMI_ExtendedDataMode_12b    ((uint16_t)0x0800) /*!< Interface captures 12-bit data on every pixel clock */
  #define DCMI_ExtendedDataMode_14b    ((uint16_t)0x0C00) /*!< Interface captures 14-bit data on every pixel clock */
  #define IS_DCMI_EXTENDED_DATA(DATA)(((DATA) == DCMI_ExtendedDataMode_8b) || \
                                      ((DATA) == DCMI_ExtendedDataMode_10b) ||\
                                      ((DATA) == DCMI_ExtendedDataMode_12b) ||\
                                      ((DATA) == DCMI_ExtendedDataMode_14b))
  /**
    * @}
    */ 
  
  
  /** @defgroup DCMI_interrupt_sources 
    * @{
    */ 
  #define DCMI_IT_FRAME    ((uint16_t)0x0001)
  #define DCMI_IT_OVF      ((uint16_t)0x0002)
  #define DCMI_IT_ERR      ((uint16_t)0x0004)
  #define DCMI_IT_VSYNC    ((uint16_t)0x0008)
  #define DCMI_IT_LINE     ((uint16_t)0x0010)
  #define IS_DCMI_CONFIG_IT(IT) ((((IT) & (uint16_t)0xFFE0) == 0x0000) && ((IT) != 0x0000))
  #define IS_DCMI_GET_IT(IT) (((IT) == DCMI_IT_FRAME) || \
                              ((IT) == DCMI_IT_OVF) || \
                              ((IT) == DCMI_IT_ERR) || \
                              ((IT) == DCMI_IT_VSYNC) || \
                              ((IT) == DCMI_IT_LINE))
  /**
    * @}
    */ 
  
  
  /** @defgroup DCMI_Flags 
    * @{
    */ 
  /** 
    * @brief   DCMI SR register  
    */ 
  #define DCMI_FLAG_HSYNC     ((uint16_t)0x2001)
  #define DCMI_FLAG_VSYNC     ((uint16_t)0x2002)
  #define DCMI_FLAG_FNE       ((uint16_t)0x2004)
  /** 
    * @brief   DCMI RISR register  
    */ 
  #define DCMI_FLAG_FRAMERI    ((uint16_t)0x0001)
  #define DCMI_FLAG_OVFRI      ((uint16_t)0x0002)
  #define DCMI_FLAG_ERRRI      ((uint16_t)0x0004)
  #define DCMI_FLAG_VSYNCRI    ((uint16_t)0x0008)
  #define DCMI_FLAG_LINERI     ((uint16_t)0x0010)
  /** 
    * @brief   DCMI MISR register  
    */ 
  #define DCMI_FLAG_FRAMEMI    ((uint16_t)0x1001)
  #define DCMI_FLAG_OVFMI      ((uint16_t)0x1002)
  #define DCMI_FLAG_ERRMI      ((uint16_t)0x1004)
  #define DCMI_FLAG_VSYNCMI    ((uint16_t)0x1008)
  #define DCMI_FLAG_LINEMI     ((uint16_t)0x1010)
  #define IS_DCMI_GET_FLAG(FLAG) (((FLAG) == DCMI_FLAG_HSYNC) || \
                                  ((FLAG) == DCMI_FLAG_VSYNC) || \
                                  ((FLAG) == DCMI_FLAG_FNE) || \
                                  ((FLAG) == DCMI_FLAG_FRAMERI) || \
                                  ((FLAG) == DCMI_FLAG_OVFRI) || \
                                  ((FLAG) == DCMI_FLAG_ERRRI) || \
                                  ((FLAG) == DCMI_FLAG_VSYNCRI) || \
                                  ((FLAG) == DCMI_FLAG_LINERI) || \
                                  ((FLAG) == DCMI_FLAG_FRAMEMI) || \
                                  ((FLAG) == DCMI_FLAG_OVFMI) || \
                                  ((FLAG) == DCMI_FLAG_ERRMI) || \
                                  ((FLAG) == DCMI_FLAG_VSYNCMI) || \
                                  ((FLAG) == DCMI_FLAG_LINEMI))
                                  
  #define IS_DCMI_CLEAR_FLAG(FLAG) ((((FLAG) & (uint16_t)0xFFE0) == 0x0000) && ((FLAG) != 0x0000))
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  /* Exported macro ------------------------------------------------------------*/
  /* Exported functions --------------------------------------------------------*/ 
  
  /*  Function used to set the DCMI configuration to the default reset state ****/ 
  void DCMI_DeInit(void);
  
  /* Initialization and Configuration functions *********************************/
  void DCMI_Init(DCMI_InitTypeDef* DCMI_InitStruct);
  void DCMI_StructInit(DCMI_InitTypeDef* DCMI_InitStruct);
  void DCMI_CROPConfig(DCMI_CROPInitTypeDef* DCMI_CROPInitStruct);
  void DCMI_CROPCmd(FunctionalState NewState);
  void DCMI_SetEmbeddedSynchroCodes(DCMI_CodesInitTypeDef* DCMI_CodesInitStruct);
  void DCMI_JPEGCmd(FunctionalState NewState);
  
  /* Image capture functions ****************************************************/
  void DCMI_Cmd(FunctionalState NewState);
  void DCMI_CaptureCmd(FunctionalState NewState);
  uint32_t DCMI_ReadData(void);
  
  /* Interrupts and flags management functions **********************************/
  void DCMI_ITConfig(uint16_t DCMI_IT, FunctionalState NewState);
  FlagStatus DCMI_GetFlagStatus(uint16_t DCMI_FLAG);
  void DCMI_ClearFlag(uint16_t DCMI_FLAG);
  ITStatus DCMI_GetITStatus(uint16_t DCMI_IT);
  void DCMI_ClearITPendingBit(uint16_t DCMI_IT);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /*__STM32F4xx_DCMI_H */
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  