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Diffstat (limited to 'c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc_ex.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc_ex.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc_ex.c b/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc_ex.c new file mode 100644 index 0000000000..390965c51d --- /dev/null +++ b/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc_ex.c @@ -0,0 +1,164 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_ltdc_ex.c + * @author MCD Application Team + * @version V1.4.0 + * @date 14-August-2015 + * @brief LTDC Extension HAL module driver. + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 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_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 /* STM32F469xx || STM32F479xx */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_DCMI_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |