Mercurial > public > ostc4
view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc_ex.c @ 947:96cf6c53c934 Evo_2_23
GNSS sleep mode:
Backup voltage is now enabled during initialization. Power saving interval has been changed to 20 second active in a 60 minutes cycle.
author | Ideenmodellierer |
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date | Sun, 22 Dec 2024 21:14:41 +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>© 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****/