source: asp3_wo_tecs/trunk/arch/arm_m_gcc/stm32f4xx_stm32cube/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc_ex.c@ 303

Last change on this file since 303 was 303, checked in by ertl-honda, 7 years ago

nucleo_f401re依存部の追加
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1/**
2 ******************************************************************************
3 * @file stm32f4xx_hal_ltdc_ex.c
4 * @author MCD Application Team
5 * @version V1.4.1
6 * @date 09-October-2015
7 * @brief LTDC Extension HAL module driver.
8 ******************************************************************************
9 * @attention
10 *
11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
12 *
13 * Redistribution and use in source and binary forms, with or without modification,
14 * are permitted provided that the following conditions are met:
15 * 1. Redistributions of source code must retain the above copyright notice,
16 * this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright notice,
18 * this list of conditions and the following disclaimer in the documentation
19 * and/or other materials provided with the distribution.
20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 ******************************************************************************
36 */
37
38/* Includes ------------------------------------------------------------------*/
39#include "stm32f4xx_hal.h"
40
41/** @addtogroup STM32F4xx_HAL_Driver
42 * @{
43 */
44/** @defgroup LTDCEx LTDCEx
45 * @brief LTDC HAL module driver
46 * @{
47 */
48
49#ifdef HAL_LTDC_MODULE_ENABLED
50
51/* Private typedef -----------------------------------------------------------*/
52/* Private define ------------------------------------------------------------*/
53/* Private macro -------------------------------------------------------------*/
54/* Private variables ---------------------------------------------------------*/
55/* Private function prototypes -----------------------------------------------*/
56/* Exported functions --------------------------------------------------------*/
57
58/** @defgroup LTDCEx_Exported_Functions LTDC Extended Exported Functions
59 * @{
60 */
61
62/** @defgroup LTDCEx_Exported_Functions_Group1 Initialization and Configuration functions
63 * @brief Initialization and Configuration functions
64 *
65@verbatim
66 ===============================================================================
67 ##### Initialization and Configuration functions #####
68 ===============================================================================
69 [..] This section provides functions allowing to:
70 (+) Initialize and configure the LTDC
71
72@endverbatim
73 * @{
74 */
75#if defined(STM32F469xx) || defined(STM32F479xx)
76/**
77 * @brief Retrieve common parameters from DSI Video mode configuration structure
78 * @param hltdc: pointer to a LTDC_HandleTypeDef structure that contains
79 * the configuration information for the LTDC.
80 * @param VidCfg: pointer to a DSI_VidCfgTypeDef structure that contains
81 * the DSI video mode configuration parameters
82 * @note The implementation of this function is taking into account the LTDC
83 * polarities inversion as described in the current LTDC specification
84 * @retval HAL status
85 */
86HAL_StatusTypeDef HAL_LTDC_StructInitFromVideoConfig(LTDC_HandleTypeDef* hltdc, DSI_VidCfgTypeDef *VidCfg)
87{
88 /* Retrieve signal polarities from DSI */
89
90 /* The following polarities are inverted:
91 LTDC_DEPOLARITY_AL <-> LTDC_DEPOLARITY_AH
92 LTDC_VSPOLARITY_AL <-> LTDC_VSPOLARITY_AH
93 LTDC_HSPOLARITY_AL <-> LTDC_HSPOLARITY_AH)*/
94
95 /* Note 1 : Code in line w/ Current LTDC specification */
96 hltdc->Init.DEPolarity = (VidCfg->DEPolarity == DSI_DATA_ENABLE_ACTIVE_HIGH) ? LTDC_DEPOLARITY_AL : LTDC_DEPOLARITY_AH;
97 hltdc->Init.VSPolarity = (VidCfg->VSPolarity == DSI_VSYNC_ACTIVE_HIGH) ? LTDC_VSPOLARITY_AL : LTDC_VSPOLARITY_AH;
98 hltdc->Init.HSPolarity = (VidCfg->HSPolarity == DSI_HSYNC_ACTIVE_HIGH) ? LTDC_HSPOLARITY_AL : LTDC_HSPOLARITY_AH;
99
100 /* Note 2: Code to be used in case LTDC polarities inversion updated in the specification */
101 /* hltdc->Init.DEPolarity = VidCfg->DEPolarity << 29;
102 hltdc->Init.VSPolarity = VidCfg->VSPolarity << 29;
103 hltdc->Init.HSPolarity = VidCfg->HSPolarity << 29; */
104
105 /* Retrieve vertical timing parameters from DSI */
106 hltdc->Init.VerticalSync = VidCfg->VerticalSyncActive - 1;
107 hltdc->Init.AccumulatedVBP = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch - 1;
108 hltdc->Init.AccumulatedActiveH = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch + VidCfg->VerticalActive - 1;
109 hltdc->Init.TotalHeigh = VidCfg->VerticalSyncActive + VidCfg->VerticalBackPorch + VidCfg->VerticalActive + VidCfg->VerticalFrontPorch - 1;
110
111 return HAL_OK;
112}
113
114/**
115 * @brief Retrieve common parameters from DSI Adapted command mode configuration structure
116 * @param hltdc: pointer to a LTDC_HandleTypeDef structure that contains
117 * the configuration information for the LTDC.
118 * @param CmdCfg: pointer to a DSI_CmdCfgTypeDef structure that contains
119 * the DSI command mode configuration parameters
120 * @note The implementation of this function is taking into account the LTDC
121 * polarities inversion as described in the current LTDC specification
122 * @retval HAL status
123 */
124HAL_StatusTypeDef HAL_LTDC_StructInitFromAdaptedCommandConfig(LTDC_HandleTypeDef* hltdc, DSI_CmdCfgTypeDef *CmdCfg)
125{
126 /* Retrieve signal polarities from DSI */
127
128 /* The following polarities are inverted:
129 LTDC_DEPOLARITY_AL <-> LTDC_DEPOLARITY_AH
130 LTDC_VSPOLARITY_AL <-> LTDC_VSPOLARITY_AH
131 LTDC_HSPOLARITY_AL <-> LTDC_HSPOLARITY_AH)*/
132
133 /* Note 1 : Code in line w/ Current LTDC specification */
134 hltdc->Init.DEPolarity = (CmdCfg->DEPolarity == DSI_DATA_ENABLE_ACTIVE_HIGH) ? LTDC_DEPOLARITY_AL : LTDC_DEPOLARITY_AH;
135 hltdc->Init.VSPolarity = (CmdCfg->VSPolarity == DSI_VSYNC_ACTIVE_HIGH) ? LTDC_VSPOLARITY_AL : LTDC_VSPOLARITY_AH;
136 hltdc->Init.HSPolarity = (CmdCfg->HSPolarity == DSI_HSYNC_ACTIVE_HIGH) ? LTDC_HSPOLARITY_AL : LTDC_HSPOLARITY_AH;
137
138 /* Note 2: Code to be used in case LTDC polarities inversion updated in the specification */
139 /* hltdc->Init.DEPolarity = CmdCfg->DEPolarity << 29;
140 hltdc->Init.VSPolarity = CmdCfg->VSPolarity << 29;
141 hltdc->Init.HSPolarity = CmdCfg->HSPolarity << 29; */
142
143 return HAL_OK;
144}
145#endif /* STM32F469xx || STM32F479xx */
146
147/**
148 * @}
149 */
150
151/**
152 * @}
153 */
154
155#endif /* HAL_DCMI_MODULE_ENABLED */
156/**
157 * @}
158 */
159
160/**
161 * @}
162 */
163
164/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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