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targets/TARGET_STM/TARGET_STM32F7/device/stm32f7xx_hal_ltdc_ex.c@179:97f825502e2a, 2018-05-02 (annotated)

Committer:: benkatz
Date:: Wed May 02 18:08:16 2018 +0000
Revision:: 179:97f825502e2a
Parent:: 168:9672193075cf

Who changed what in which revision?

User	Revision	Line number	New contents of line
<>	144:ef7eb2e8f9f7	1	/**
<>	144:ef7eb2e8f9f7	2	******************************************************************************
<>	144:ef7eb2e8f9f7	3	* @file stm32f7xx_hal_ltdc_ex.c
<>	144:ef7eb2e8f9f7	4	* @author MCD Application Team
AnnaBridge	168:9672193075cf	5	* @version V1.2.2
AnnaBridge	168:9672193075cf	6	* @date 14-April-2017
<>	144:ef7eb2e8f9f7	7	* @brief LTDC Extension HAL module driver.
<>	144:ef7eb2e8f9f7	8	******************************************************************************
<>	144:ef7eb2e8f9f7	9	* @attention
<>	144:ef7eb2e8f9f7	10	*
AnnaBridge	168:9672193075cf	11	* <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
<>	144:ef7eb2e8f9f7	12	*
<>	144:ef7eb2e8f9f7	13	* Redistribution and use in source and binary forms, with or without modification,
<>	144:ef7eb2e8f9f7	14	* are permitted provided that the following conditions are met:
<>	144:ef7eb2e8f9f7	15	* 1. Redistributions of source code must retain the above copyright notice,
<>	144:ef7eb2e8f9f7	16	* this list of conditions and the following disclaimer.
<>	144:ef7eb2e8f9f7	17	* 2. Redistributions in binary form must reproduce the above copyright notice,
<>	144:ef7eb2e8f9f7	18	* this list of conditions and the following disclaimer in the documentation
<>	144:ef7eb2e8f9f7	19	* and/or other materials provided with the distribution.
<>	144:ef7eb2e8f9f7	20	* 3. Neither the name of STMicroelectronics nor the names of its contributors
<>	144:ef7eb2e8f9f7	21	* may be used to endorse or promote products derived from this software
<>	144:ef7eb2e8f9f7	22	* without specific prior written permission.
<>	144:ef7eb2e8f9f7	23	*
<>	144:ef7eb2e8f9f7	24	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<>	144:ef7eb2e8f9f7	25	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<>	144:ef7eb2e8f9f7	26	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<>	144:ef7eb2e8f9f7	27	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<>	144:ef7eb2e8f9f7	28	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<>	144:ef7eb2e8f9f7	29	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<>	144:ef7eb2e8f9f7	30	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<>	144:ef7eb2e8f9f7	31	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<>	144:ef7eb2e8f9f7	32	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<>	144:ef7eb2e8f9f7	33	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<>	144:ef7eb2e8f9f7	34	*
<>	144:ef7eb2e8f9f7	35	******************************************************************************
<>	144:ef7eb2e8f9f7	36	*/
<>	144:ef7eb2e8f9f7	37
<>	144:ef7eb2e8f9f7	38	/* Includes ------------------------------------------------------------------*/
<>	144:ef7eb2e8f9f7	39	#include "stm32f7xx_hal.h"
<>	144:ef7eb2e8f9f7	40
<>	144:ef7eb2e8f9f7	41	/** @addtogroup STM32F7xx_HAL_Driver
<>	144:ef7eb2e8f9f7	42	* @{
<>	144:ef7eb2e8f9f7	43	*/
<>	144:ef7eb2e8f9f7	44	/** @defgroup LTDCEx LTDCEx
<>	144:ef7eb2e8f9f7	45	* @brief LTDC HAL module driver
<>	144:ef7eb2e8f9f7	46	* @{
<>	144:ef7eb2e8f9f7	47	*/
<>	144:ef7eb2e8f9f7	48
<>	144:ef7eb2e8f9f7	49	#ifdef HAL_LTDC_MODULE_ENABLED
<>	144:ef7eb2e8f9f7	50
<>	144:ef7eb2e8f9f7	51	/* Private typedef -----------------------------------------------------------*/
<>	144:ef7eb2e8f9f7	52	/* Private define ------------------------------------------------------------*/
<>	144:ef7eb2e8f9f7	53	/* Private macro -------------------------------------------------------------*/
<>	144:ef7eb2e8f9f7	54	/* Private variables ---------------------------------------------------------*/
<>	144:ef7eb2e8f9f7	55	/* Private function prototypes -----------------------------------------------*/
<>	144:ef7eb2e8f9f7	56	/* Exported functions --------------------------------------------------------*/
<>	144:ef7eb2e8f9f7	57
<>	144:ef7eb2e8f9f7	58	/** @defgroup LTDCEx_Exported_Functions LTDC Extended Exported Functions
<>	144:ef7eb2e8f9f7	59	* @{
<>	144:ef7eb2e8f9f7	60	*/
<>	144:ef7eb2e8f9f7	61
<>	144:ef7eb2e8f9f7	62	/** @defgroup LTDCEx_Exported_Functions_Group1 Initialization and Configuration functions
<>	144:ef7eb2e8f9f7	63	* @brief Initialization and Configuration functions
<>	144:ef7eb2e8f9f7	64	*
<>	144:ef7eb2e8f9f7	65	@verbatim
<>	144:ef7eb2e8f9f7	66	===============================================================================
<>	144:ef7eb2e8f9f7	67	##### Initialization and Configuration functions #####
<>	144:ef7eb2e8f9f7	68	===============================================================================
<>	144:ef7eb2e8f9f7	69	[..] This section provides functions allowing to:
<>	144:ef7eb2e8f9f7	70	(+) Initialize and configure the LTDC
<>	144:ef7eb2e8f9f7	71
<>	144:ef7eb2e8f9f7	72	@endverbatim
<>	144:ef7eb2e8f9f7	73	* @{
<>	144:ef7eb2e8f9f7	74	*/
<>	144:ef7eb2e8f9f7	75	#if defined (STM32F769xx) \|\| defined (STM32F779xx)
<>	144:ef7eb2e8f9f7	76	/**
<>	144:ef7eb2e8f9f7	77	* @brief Retrieve common parameters from DSI Video mode configuration structure
<>	144:ef7eb2e8f9f7	78	* @param hltdc: pointer to a LTDC_HandleTypeDef structure that contains
<>	144:ef7eb2e8f9f7	79	* the configuration information for the LTDC.
<>	144:ef7eb2e8f9f7	80	* @param VidCfg: pointer to a DSI_VidCfgTypeDef structure that contains
<>	144:ef7eb2e8f9f7	81	* the DSI video mode configuration parameters
<>	144:ef7eb2e8f9f7	82	* @note The implementation of this function is taking into account the LTDC
<>	144:ef7eb2e8f9f7	83	* polarities inversion as described in the current LTDC specification
<>	144:ef7eb2e8f9f7	84	* @retval HAL status
<>	144:ef7eb2e8f9f7	85	*/
<>	144:ef7eb2e8f9f7	86	HAL_StatusTypeDef HAL_LTDC_StructInitFromVideoConfig(LTDC_HandleTypeDef* hltdc, DSI_VidCfgTypeDef *VidCfg)
<>	144:ef7eb2e8f9f7	87	{
<>	144:ef7eb2e8f9f7	88	/* Retrieve signal polarities from DSI */
<>	144:ef7eb2e8f9f7	89
<>	157:ff67d9f36b67	90	/* The following polarity is inverted:
<>	157:ff67d9f36b67	91	LTDC_DEPOLARITY_AL <-> LTDC_DEPOLARITY_AH */
<>	144:ef7eb2e8f9f7	92
<>	144:ef7eb2e8f9f7	93	/* Note 1 : Code in line w/ Current LTDC specification */
<>	144:ef7eb2e8f9f7	94	hltdc->Init.DEPolarity = (VidCfg->DEPolarity == DSI_DATA_ENABLE_ACTIVE_HIGH) ? LTDC_DEPOLARITY_AL : LTDC_DEPOLARITY_AH;
<>	157:ff67d9f36b67	95	hltdc->Init.VSPolarity = (VidCfg->VSPolarity == DSI_VSYNC_ACTIVE_HIGH) ? LTDC_VSPOLARITY_AH : LTDC_VSPOLARITY_AL;
<>	157:ff67d9f36b67	96	hltdc->Init.HSPolarity = (VidCfg->HSPolarity == DSI_HSYNC_ACTIVE_HIGH) ? LTDC_HSPOLARITY_AH : LTDC_HSPOLARITY_AL;
<>	144:ef7eb2e8f9f7	97
<>	144:ef7eb2e8f9f7	98	/* Note 2: Code to be used in case LTDC polarities inversion updated in the specification */
<>	144:ef7eb2e8f9f7	99	/* hltdc->Init.DEPolarity = VidCfg->DEPolarity << 29;
<>	144:ef7eb2e8f9f7	100	hltdc->Init.VSPolarity = VidCfg->VSPolarity << 29;
<>	144:ef7eb2e8f9f7	101	hltdc->Init.HSPolarity = VidCfg->HSPolarity << 29; */
<>	144:ef7eb2e8f9f7	102
<>	144:ef7eb2e8f9f7	103	/* Retrieve vertical timing parameters from DSI */
<>	144:ef7eb2e8f9f7	104	hltdc->Init.VerticalSync = VidCfg->VerticalSyncActive - 1;
<>	144:ef7eb2e8f9f7	105	hltdc->Init.AccumulatedVBP = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch - 1;
<>	144:ef7eb2e8f9f7	106	hltdc->Init.AccumulatedActiveH = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch + VidCfg->VerticalActive - 1;
<>	144:ef7eb2e8f9f7	107	hltdc->Init.TotalHeigh = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch + VidCfg->VerticalActive + VidCfg->VerticalFrontPorch - 1;
<>	144:ef7eb2e8f9f7	108
<>	144:ef7eb2e8f9f7	109	return HAL_OK;
<>	144:ef7eb2e8f9f7	110	}
<>	144:ef7eb2e8f9f7	111
<>	144:ef7eb2e8f9f7	112	/**
<>	144:ef7eb2e8f9f7	113	* @brief Retrieve common parameters from DSI Adapted command mode configuration structure
<>	144:ef7eb2e8f9f7	114	* @param hltdc: pointer to a LTDC_HandleTypeDef structure that contains
<>	144:ef7eb2e8f9f7	115	* the configuration information for the LTDC.
<>	144:ef7eb2e8f9f7	116	* @param CmdCfg: pointer to a DSI_CmdCfgTypeDef structure that contains
<>	144:ef7eb2e8f9f7	117	* the DSI command mode configuration parameters
<>	144:ef7eb2e8f9f7	118	* @note The implementation of this function is taking into account the LTDC
<>	144:ef7eb2e8f9f7	119	* polarities inversion as described in the current LTDC specification
<>	144:ef7eb2e8f9f7	120	* @retval HAL status
<>	144:ef7eb2e8f9f7	121	*/
<>	144:ef7eb2e8f9f7	122	HAL_StatusTypeDef HAL_LTDC_StructInitFromAdaptedCommandConfig(LTDC_HandleTypeDef* hltdc, DSI_CmdCfgTypeDef *CmdCfg)
<>	144:ef7eb2e8f9f7	123	{
<>	144:ef7eb2e8f9f7	124	/* Retrieve signal polarities from DSI */
<>	144:ef7eb2e8f9f7	125
<>	144:ef7eb2e8f9f7	126	/* The following polarities are inverted:
<>	144:ef7eb2e8f9f7	127	LTDC_DEPOLARITY_AL <-> LTDC_DEPOLARITY_AH
<>	144:ef7eb2e8f9f7	128	LTDC_VSPOLARITY_AL <-> LTDC_VSPOLARITY_AH
<>	144:ef7eb2e8f9f7	129	LTDC_HSPOLARITY_AL <-> LTDC_HSPOLARITY_AH)*/
<>	144:ef7eb2e8f9f7	130
<>	144:ef7eb2e8f9f7	131	/* Note 1 : Code in line w/ Current LTDC specification */
<>	144:ef7eb2e8f9f7	132	hltdc->Init.DEPolarity = (CmdCfg->DEPolarity == DSI_DATA_ENABLE_ACTIVE_HIGH) ? LTDC_DEPOLARITY_AL : LTDC_DEPOLARITY_AH;
<>	144:ef7eb2e8f9f7	133	hltdc->Init.VSPolarity = (CmdCfg->VSPolarity == DSI_VSYNC_ACTIVE_HIGH) ? LTDC_VSPOLARITY_AL : LTDC_VSPOLARITY_AH;
<>	144:ef7eb2e8f9f7	134	hltdc->Init.HSPolarity = (CmdCfg->HSPolarity == DSI_HSYNC_ACTIVE_HIGH) ? LTDC_HSPOLARITY_AL : LTDC_HSPOLARITY_AH;
<>	144:ef7eb2e8f9f7	135
<>	144:ef7eb2e8f9f7	136	/* Note 2: Code to be used in case LTDC polarities inversion updated in the specification */
<>	144:ef7eb2e8f9f7	137	/* hltdc->Init.DEPolarity = CmdCfg->DEPolarity << 29;
<>	144:ef7eb2e8f9f7	138	hltdc->Init.VSPolarity = CmdCfg->VSPolarity << 29;
<>	144:ef7eb2e8f9f7	139	hltdc->Init.HSPolarity = CmdCfg->HSPolarity << 29; */
<>	144:ef7eb2e8f9f7	140
<>	144:ef7eb2e8f9f7	141	return HAL_OK;
<>	144:ef7eb2e8f9f7	142	}
<>	144:ef7eb2e8f9f7	143	#endif /STM32F769xx \| STM32F779xx /
<>	144:ef7eb2e8f9f7	144
<>	144:ef7eb2e8f9f7	145	/**
<>	144:ef7eb2e8f9f7	146	* @}
<>	144:ef7eb2e8f9f7	147	*/
<>	144:ef7eb2e8f9f7	148
<>	144:ef7eb2e8f9f7	149	/**
<>	144:ef7eb2e8f9f7	150	* @}
<>	144:ef7eb2e8f9f7	151	*/
<>	144:ef7eb2e8f9f7	152
<>	144:ef7eb2e8f9f7	153	#endif /* HAL_LTCD_MODULE_ENABLED */
<>	144:ef7eb2e8f9f7	154	/**
<>	144:ef7eb2e8f9f7	155	* @}
<>	144:ef7eb2e8f9f7	156	*/
<>	144:ef7eb2e8f9f7	157
<>	144:ef7eb2e8f9f7	158	/**
<>	144:ef7eb2e8f9f7	159	* @}
<>	144:ef7eb2e8f9f7	160	*/
<>	144:ef7eb2e8f9f7	161
<>	144:ef7eb2e8f9f7	162	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Library
Created:	02 May 2018
Imports:	22
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Commits:	180
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