/** | |
****************************************************************************** | |
* @file stm32f7xx_hal_ltdc_ex.c | |
* @author MCD Application Team | |
* @version V1.1.1 | |
* @date 01-July-2016 | |
* @brief LTDC Extension HAL module driver. | |
****************************************************************************** | |
* @attention | |
* | |
* <h2><center>© COPYRIGHT(c) 2016 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 | |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
* | |
****************************************************************************** | |
*/ | |
/* Includes ------------------------------------------------------------------*/ | |
#include "stm32f7xx_hal.h" | |
/** @addtogroup STM32F7xx_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 (STM32F769xx) || defined (STM32F779xx) | |
/** | |
* @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_LTDC_StructInitFromVideoConfig(LTDC_HandleTypeDef* hltdc, DSI_VidCfgTypeDef *VidCfg) | |
{ | |
/* 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 = (VidCfg->DEPolarity == DSI_DATA_ENABLE_ACTIVE_HIGH) ? LTDC_DEPOLARITY_AL : LTDC_DEPOLARITY_AH; | |
hltdc->Init.VSPolarity = (VidCfg->VSPolarity == DSI_VSYNC_ACTIVE_HIGH) ? LTDC_VSPOLARITY_AL : LTDC_VSPOLARITY_AH; | |
hltdc->Init.HSPolarity = (VidCfg->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 = 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 - 1; | |
hltdc->Init.AccumulatedVBP = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch - 1; | |
hltdc->Init.AccumulatedActiveH = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch + VidCfg->VerticalActive - 1; | |
hltdc->Init.TotalHeigh = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch + VidCfg->VerticalActive + VidCfg->VerticalFrontPorch - 1; | |
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_LTDC_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 /*STM32F769xx | STM32F779xx */ | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
#endif /* HAL_LTCD_MODULE_ENABLED */ | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |