view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc_ex.c @ 946:80ae8ea7f0a0 Evo_2_23

GNSS set to full power at startup: In case of an reset the module would continue in sleep mode if it was in this state. To avoid this the module will now always set to full power at startup of the RTE.
author Ideenmodellierer
date Sun, 22 Dec 2024 20:52:08 +0100
parents c78bcbd5deda
children
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/**
  ******************************************************************************
  * @file    stm32f4xx_hal_ltdc_ex.c
  * @author  MCD Application Team
  * @brief   LTDC Extension HAL module driver.
  ******************************************************************************
  * @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 LTDCEx LTDCEx
  * @brief LTDC HAL module driver
  * @{
  */

#ifdef HAL_LTDC_MODULE_ENABLED

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

/** @defgroup LTDCEx_Exported_Functions LTDC Extended Exported Functions
  * @{
  */

/** @defgroup LTDCEx_Exported_Functions_Group1 Initialization and Configuration functions
 *  @brief   Initialization and Configuration functions
 *
@verbatim   
 ===============================================================================
                ##### Initialization and Configuration functions #####
 ===============================================================================  
    [..]  This section provides functions allowing to:
      (+) Initialize and configure the LTDC

@endverbatim
  * @{
  */
#if defined(STM32F469xx) || defined(STM32F479xx)
/**
  * @brief  Retrieve common parameters from DSI Video mode configuration structure
  * @param  hltdc   pointer to a LTDC_HandleTypeDef structure that contains
  *                 the configuration information for the LTDC.
  * @param  VidCfg  pointer to a DSI_VidCfgTypeDef structure that contains
  *                 the DSI video mode configuration parameters
  * @note   The implementation of this function is taking into account the LTDC
  *         polarities inversion as described in the current LTDC specification
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LTDCEx_StructInitFromVideoConfig(LTDC_HandleTypeDef* hltdc, DSI_VidCfgTypeDef *VidCfg)
{
  /* Retrieve signal polarities from DSI */
  
  /* The following polarity is inverted:
                     LTDC_DEPOLARITY_AL <-> LTDC_DEPOLARITY_AH */
  
  /* Note 1 : Code in line w/ Current LTDC specification */
  hltdc->Init.DEPolarity = (VidCfg->DEPolarity == DSI_DATA_ENABLE_ACTIVE_HIGH) ? LTDC_DEPOLARITY_AL : LTDC_DEPOLARITY_AH;
  hltdc->Init.VSPolarity = (VidCfg->VSPolarity == DSI_VSYNC_ACTIVE_HIGH) ? LTDC_VSPOLARITY_AH : LTDC_VSPOLARITY_AL;
  hltdc->Init.HSPolarity = (VidCfg->HSPolarity == DSI_HSYNC_ACTIVE_HIGH) ? LTDC_HSPOLARITY_AH : LTDC_HSPOLARITY_AL;

  /* Note 2: Code to be used in case LTDC polarities inversion updated in the specification */
  /* hltdc->Init.DEPolarity = VidCfg->DEPolarity << 29;
     hltdc->Init.VSPolarity = VidCfg->VSPolarity << 29;
     hltdc->Init.HSPolarity = VidCfg->HSPolarity << 29; */
    
  /* Retrieve vertical timing parameters from DSI */
  hltdc->Init.VerticalSync       = VidCfg->VerticalSyncActive - 1U;
  hltdc->Init.AccumulatedVBP     = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch - 1U;
  hltdc->Init.AccumulatedActiveH = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch + VidCfg->VerticalActive - 1U;
  hltdc->Init.TotalHeigh         = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch + VidCfg->VerticalActive + VidCfg->VerticalFrontPorch - 1U;
  
  return HAL_OK;
}

/**
  * @brief  Retrieve common parameters from DSI Adapted command mode configuration structure
  * @param  hltdc   pointer to a LTDC_HandleTypeDef structure that contains
  *                 the configuration information for the LTDC.
  * @param  CmdCfg  pointer to a DSI_CmdCfgTypeDef structure that contains
  *                 the DSI command mode configuration parameters
  * @note   The implementation of this function is taking into account the LTDC
  *         polarities inversion as described in the current LTDC specification
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LTDCEx_StructInitFromAdaptedCommandConfig(LTDC_HandleTypeDef* hltdc, DSI_CmdCfgTypeDef *CmdCfg)
{
  /* Retrieve signal polarities from DSI */
  
  /* The following polarities are inverted:
                     LTDC_DEPOLARITY_AL <-> LTDC_DEPOLARITY_AH
                     LTDC_VSPOLARITY_AL <-> LTDC_VSPOLARITY_AH
                     LTDC_HSPOLARITY_AL <-> LTDC_HSPOLARITY_AH)*/
  
  /* Note 1 : Code in line w/ Current LTDC specification */
  hltdc->Init.DEPolarity = (CmdCfg->DEPolarity == DSI_DATA_ENABLE_ACTIVE_HIGH) ? LTDC_DEPOLARITY_AL : LTDC_DEPOLARITY_AH;
  hltdc->Init.VSPolarity = (CmdCfg->VSPolarity == DSI_VSYNC_ACTIVE_HIGH) ? LTDC_VSPOLARITY_AL : LTDC_VSPOLARITY_AH;
  hltdc->Init.HSPolarity = (CmdCfg->HSPolarity == DSI_HSYNC_ACTIVE_HIGH) ? LTDC_HSPOLARITY_AL : LTDC_HSPOLARITY_AH;
  
  /* Note 2: Code to be used in case LTDC polarities inversion updated in the specification */
  /* hltdc->Init.DEPolarity = CmdCfg->DEPolarity << 29;
     hltdc->Init.VSPolarity = CmdCfg->VSPolarity << 29;
     hltdc->Init.HSPolarity = CmdCfg->HSPolarity << 29; */
  
  return HAL_OK;
}
#endif /* STM32F469xx || STM32F479xx */

/**
  * @}
  */

/**
  * @}
  */

#endif /* HAL_DCMI_MODULE_ENABLED */
/**
  * @}
  */

/**
  * @}
  */

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