diff options
Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc.c | 126 |
1 files changed, 92 insertions, 34 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc.c index 227a603a2d..fe9427ce77 100644 --- a/bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc.c +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_ltdc.c @@ -10,6 +10,17 @@ * + Peripheral Control functions * + Peripheral State and Errors functions * + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** @verbatim ============================================================================== ##### How to use this driver ##### @@ -146,17 +157,6 @@ @endverbatim ****************************************************************************** - * @attention - * - * <h2><center>© Copyright (c) 2017 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 ------------------------------------------------------------------*/ @@ -179,6 +179,14 @@ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ +/** @defgroup LTDC_Private_Define LTDC Private Define + * @ingroup RTEMSBSPsARMSTM32H7 + * @{ + */ +#define LTDC_TIMEOUT_VALUE ((uint32_t)100U) /* 100ms */ +/** + * @} + */ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ @@ -214,7 +222,8 @@ static void LTDC_SetConfig(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLay */ HAL_StatusTypeDef HAL_LTDC_Init(LTDC_HandleTypeDef *hltdc) { - uint32_t tmp, tmp1; + uint32_t tmp; + uint32_t tmp1; /* Check the LTDC peripheral state */ if (hltdc == NULL) @@ -323,6 +332,44 @@ HAL_StatusTypeDef HAL_LTDC_Init(LTDC_HandleTypeDef *hltdc) HAL_StatusTypeDef HAL_LTDC_DeInit(LTDC_HandleTypeDef *hltdc) { + uint32_t tickstart; + + /* Check the LTDC peripheral state */ + if (hltdc == NULL) + { + return HAL_ERROR; + } + + /* Check function parameters */ + assert_param(IS_LTDC_ALL_INSTANCE(hltdc->Instance)); + + /* Disable LTDC Layer 1 */ + __HAL_LTDC_LAYER_DISABLE(hltdc, LTDC_LAYER_1); + +#if defined(LTDC_Layer2_BASE) + /* Disable LTDC Layer 2 */ + __HAL_LTDC_LAYER_DISABLE(hltdc, LTDC_LAYER_2); +#endif /* LTDC_Layer2_BASE */ + + /* Reload during vertical blanking period */ + __HAL_LTDC_VERTICAL_BLANKING_RELOAD_CONFIG(hltdc); + + /* Get tick */ + tickstart = HAL_GetTick(); + + /* Wait for VSYNC Interrupt */ + while (READ_BIT(hltdc->Instance->CDSR, LTDC_CDSR_VSYNCS) == 0U) + { + /* Check for the Timeout */ + if ((HAL_GetTick() - tickstart) > LTDC_TIMEOUT_VALUE) + { + break; + } + } + + /* Disable LTDC */ + __HAL_LTDC_DISABLE(hltdc); + #if (USE_HAL_LTDC_REGISTER_CALLBACKS == 1) if (hltdc->MspDeInitCallback == NULL) { @@ -394,7 +441,8 @@ __weak void HAL_LTDC_MspDeInit(LTDC_HandleTypeDef *hltdc) * @param pCallback pointer to the Callback function * @retval status */ -HAL_StatusTypeDef HAL_LTDC_RegisterCallback(LTDC_HandleTypeDef *hltdc, HAL_LTDC_CallbackIDTypeDef CallbackID, pLTDC_CallbackTypeDef pCallback) +HAL_StatusTypeDef HAL_LTDC_RegisterCallback(LTDC_HandleTypeDef *hltdc, HAL_LTDC_CallbackIDTypeDef CallbackID, + pLTDC_CallbackTypeDef pCallback) { HAL_StatusTypeDef status = HAL_OK; @@ -476,7 +524,7 @@ HAL_StatusTypeDef HAL_LTDC_RegisterCallback(LTDC_HandleTypeDef *hltdc, HAL_LTDC_ /** * @brief Unregister an LTDC Callback - * LTDC callabck is redirected to the weak predefined callback + * LTDC callback is redirected to the weak predefined callback * @param hltdc ltdc handle * @param CallbackID ID of the callback to be unregistered * This parameter can be one of the following values: @@ -892,11 +940,13 @@ HAL_StatusTypeDef HAL_LTDC_ConfigCLUT(LTDC_HandleTypeDef *hltdc, uint32_t *pCLUT { if (hltdc->LayerCfg[LayerIdx].PixelFormat == LTDC_PIXEL_FORMAT_AL44) { - tmp = (((counter + (16U*counter)) << 24U) | ((uint32_t)(*pcolorlut) & 0xFFU) | ((uint32_t)(*pcolorlut) & 0xFF00U) | ((uint32_t)(*pcolorlut) & 0xFF0000U)); + tmp = (((counter + (16U * counter)) << 24U) | ((uint32_t)(*pcolorlut) & 0xFFU) | \ + ((uint32_t)(*pcolorlut) & 0xFF00U) | ((uint32_t)(*pcolorlut) & 0xFF0000U)); } else { - tmp = ((counter << 24U) | ((uint32_t)(*pcolorlut) & 0xFFU) | ((uint32_t)(*pcolorlut) & 0xFF00U) | ((uint32_t)(*pcolorlut) & 0xFF0000U)); + tmp = ((counter << 24U) | ((uint32_t)(*pcolorlut) & 0xFFU) | \ + ((uint32_t)(*pcolorlut) & 0xFF00U) | ((uint32_t)(*pcolorlut) & 0xFF0000U)); } pcolorlut++; @@ -1350,12 +1400,14 @@ HAL_StatusTypeDef HAL_LTDC_SetAddress(LTDC_HandleTypeDef *hltdc, uint32_t Addres } /** - * @brief Function used to reconfigure the pitch for specific cases where the attached LayerIdx buffer have a width that is - * larger than the one intended to be displayed on screen. Example of a buffer 800x480 attached to layer for which we - * want to read and display on screen only a portion 320x240 taken in the center of the buffer. The pitch in pixels - * will be in that case 800 pixels and not 320 pixels as initially configured by previous call to HAL_LTDC_ConfigLayer(). - * @note This function should be called only after a previous call to HAL_LTDC_ConfigLayer() to modify the default pitch - * configured by HAL_LTDC_ConfigLayer() when required (refer to example described just above). + * @brief Function used to reconfigure the pitch for specific cases where the attached LayerIdx buffer have a width + * that is larger than the one intended to be displayed on screen. Example of a buffer 800x480 attached to + * layer for which we want to read and display on screen only a portion 320x240 taken in the center + * of the buffer. + * The pitch in pixels will be in that case 800 pixels and not 320 pixels as initially configured by previous + * call to HAL_LTDC_ConfigLayer(). + * @note This function should be called only after a previous call to HAL_LTDC_ConfigLayer() to modify the default + * pitch configured by HAL_LTDC_ConfigLayer() when required (refer to example described just above). * @param hltdc pointer to a LTDC_HandleTypeDef structure that contains * the configuration information for the LTDC. * @param LinePitchInPixels New line pitch in pixels to configure for LTDC layer 'LayerIdx'. @@ -1509,7 +1561,8 @@ HAL_StatusTypeDef HAL_LTDC_Reload(LTDC_HandleTypeDef *hltdc, uint32_t ReloadTyp * LTDC_LAYER_1 (0) or LTDC_LAYER_2 (1) * @retval HAL status */ -HAL_StatusTypeDef HAL_LTDC_ConfigLayer_NoReload(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLayerCfg, uint32_t LayerIdx) +HAL_StatusTypeDef HAL_LTDC_ConfigLayer_NoReload(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLayerCfg, + uint32_t LayerIdx) { /* Check the parameters */ assert_param(IS_LTDC_LAYER(LayerIdx)); @@ -1558,7 +1611,8 @@ HAL_StatusTypeDef HAL_LTDC_ConfigLayer_NoReload(LTDC_HandleTypeDef *hltdc, LTDC_ * LTDC_LAYER_1 (0) or LTDC_LAYER_2 (1) * @retval HAL status */ -HAL_StatusTypeDef HAL_LTDC_SetWindowSize_NoReload(LTDC_HandleTypeDef *hltdc, uint32_t XSize, uint32_t YSize, uint32_t LayerIdx) +HAL_StatusTypeDef HAL_LTDC_SetWindowSize_NoReload(LTDC_HandleTypeDef *hltdc, uint32_t XSize, uint32_t YSize, + uint32_t LayerIdx) { LTDC_LayerCfgTypeDef *pLayerCfg; @@ -1612,7 +1666,8 @@ HAL_StatusTypeDef HAL_LTDC_SetWindowSize_NoReload(LTDC_HandleTypeDef *hltdc, uin * LTDC_LAYER_1 (0) or LTDC_LAYER_2 (1) * @retval HAL status */ -HAL_StatusTypeDef HAL_LTDC_SetWindowPosition_NoReload(LTDC_HandleTypeDef *hltdc, uint32_t X0, uint32_t Y0, uint32_t LayerIdx) +HAL_StatusTypeDef HAL_LTDC_SetWindowPosition_NoReload(LTDC_HandleTypeDef *hltdc, uint32_t X0, uint32_t Y0, + uint32_t LayerIdx) { LTDC_LayerCfgTypeDef *pLayerCfg; @@ -1779,12 +1834,14 @@ HAL_StatusTypeDef HAL_LTDC_SetAddress_NoReload(LTDC_HandleTypeDef *hltdc, uint32 } /** - * @brief Function used to reconfigure the pitch for specific cases where the attached LayerIdx buffer have a width that is - * larger than the one intended to be displayed on screen. Example of a buffer 800x480 attached to layer for which we - * want to read and display on screen only a portion 320x240 taken in the center of the buffer. The pitch in pixels - * will be in that case 800 pixels and not 320 pixels as initially configured by previous call to HAL_LTDC_ConfigLayer(). - * @note This function should be called only after a previous call to HAL_LTDC_ConfigLayer() to modify the default pitch - * configured by HAL_LTDC_ConfigLayer() when required (refer to example described just above). + * @brief Function used to reconfigure the pitch for specific cases where the attached LayerIdx buffer have a width + * that is larger than the one intended to be displayed on screen. Example of a buffer 800x480 attached to + * layer for which we want to read and display on screen only a portion 320x240 taken in the center + * of the buffer. + * The pitch in pixels will be in that case 800 pixels and not 320 pixels as initially configured by + * previous call to HAL_LTDC_ConfigLayer(). + * @note This function should be called only after a previous call to HAL_LTDC_ConfigLayer() to modify the default + * pitch configured by HAL_LTDC_ConfigLayer() when required (refer to example described just above). * Variant of the function HAL_LTDC_SetPitch without immediate reload. * @param hltdc pointer to a LTDC_HandleTypeDef structure that contains * the configuration information for the LTDC. @@ -2089,7 +2146,8 @@ static void LTDC_SetConfig(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLay /* Configure the horizontal start and stop position */ tmp = ((pLayerCfg->WindowX1 + ((hltdc->Instance->BPCR & LTDC_BPCR_AHBP) >> 16U)) << 16U); LTDC_LAYER(hltdc, LayerIdx)->WHPCR &= ~(LTDC_LxWHPCR_WHSTPOS | LTDC_LxWHPCR_WHSPPOS); - LTDC_LAYER(hltdc, LayerIdx)->WHPCR = ((pLayerCfg->WindowX0 + ((hltdc->Instance->BPCR & LTDC_BPCR_AHBP) >> 16U) + 1U) | tmp); + LTDC_LAYER(hltdc, LayerIdx)->WHPCR = ((pLayerCfg->WindowX0 + \ + ((hltdc->Instance->BPCR & LTDC_BPCR_AHBP) >> 16U) + 1U) | tmp); /* Configure the vertical start and stop position */ tmp = ((pLayerCfg->WindowY1 + (hltdc->Instance->BPCR & LTDC_BPCR_AVBP)) << 16U); @@ -2104,7 +2162,8 @@ static void LTDC_SetConfig(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLay tmp = ((uint32_t)(pLayerCfg->Backcolor.Green) << 8U); tmp1 = ((uint32_t)(pLayerCfg->Backcolor.Red) << 16U); tmp2 = (pLayerCfg->Alpha0 << 24U); - LTDC_LAYER(hltdc, LayerIdx)->DCCR &= ~(LTDC_LxDCCR_DCBLUE | LTDC_LxDCCR_DCGREEN | LTDC_LxDCCR_DCRED | LTDC_LxDCCR_DCALPHA); + LTDC_LAYER(hltdc, LayerIdx)->DCCR &= ~(LTDC_LxDCCR_DCBLUE | LTDC_LxDCCR_DCGREEN | LTDC_LxDCCR_DCRED | + LTDC_LxDCCR_DCALPHA); LTDC_LAYER(hltdc, LayerIdx)->DCCR = (pLayerCfg->Backcolor.Blue | tmp | tmp1 | tmp2); /* Specifies the constant alpha value */ @@ -2167,4 +2226,3 @@ static void LTDC_SetConfig(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLay * @} */ -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |