From 44c8a1777f4a3bd619676c16852cb8764369a8ec Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 4 Mar 2020 12:33:17 +0100 Subject: bsp/stm32h7: Import from STM32CubeMX-5.6.0 Update #3910. --- bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc_ex.c | 149 +++++++++++++++++++++++++++ 1 file changed, 149 insertions(+) create mode 100644 bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc_ex.c (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc_ex.c') diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc_ex.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc_ex.c new file mode 100644 index 0000000000..b0bafd74cd --- /dev/null +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc_ex.c @@ -0,0 +1,149 @@ +/** + ****************************************************************************** + * @file stm32h7xx_hal_ltdc_ex.c + * @author MCD Application Team + * @brief LTDC Extension HAL module driver. + ****************************************************************************** + * @attention + * + *

© Copyright (c) 2017 STMicroelectronics. + * All rights reserved.

+ * + * This software component is licensed by ST under BSD 3-Clause license, + * the "License"; You may not use this file except in compliance with the + * License. You may obtain a copy of the License at: + * opensource.org/licenses/BSD-3-Clause + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32h7xx_hal.h" + +/** @addtogroup STM32H7xx_HAL_Driver + * @{ + */ + +#if defined(HAL_LTDC_MODULE_ENABLED) && defined(HAL_DSI_MODULE_ENABLED) + +#if defined (LTDC) && defined (DSI) + +/** @defgroup LTDCEx LTDCEx + * @brief LTDC HAL module driver + * @{ + */ + +/* 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 + * @{ + */ + +/** + * @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 /* LTDC && DSI */ + +#endif /* HAL_LTCD_MODULE_ENABLED && HAL_DSI_MODULE_ENABLED */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3