You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
149 lines
6.0 KiB
149 lines
6.0 KiB
/**
|
|
******************************************************************************
|
|
* @file stm32f4xx_hal_ltdc_ex.c
|
|
* @author MCD Application Team
|
|
* @brief LTDC Extension HAL module driver.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© Copyright (c) 2016 STMicroelectronics.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* 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 "stm32f4xx_hal.h"
|
|
|
|
/** @addtogroup STM32F4xx_HAL_Driver
|
|
* @{
|
|
*/
|
|
|
|
#if defined (LTDC) && defined (DSI)
|
|
|
|
/** @defgroup LTDCEx LTDCEx
|
|
* @brief LTDC HAL module driver
|
|
* @{
|
|
*/
|
|
|
|
#if defined(HAL_LTDC_MODULE_ENABLED) && defined(HAL_DSI_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
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @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 /* HAL_LTCD_MODULE_ENABLED && HAL_DSI_MODULE_ENABLED */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* LTDC && DSI */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
|
|