/** ****************************************************************************** * @file stm32469i_eval_lcd.c * @author MCD Application Team * @brief This file includes the driver for Liquid Crystal Display (LCD) module * mounted on STM32469I-EVAL evaluation board. ****************************************************************************** * @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. * ****************************************************************************** *//* ... */ /* File Info: ------------------------------------------------------------------ User NOTES 1. How To use this driver: -------------------------- - This driver is used to drive directly in video mode a LCD TFT using the DSI interface. The following IPs are implied : DSI Host IP block working in conjunction to the LTDC controller. - This driver is linked by construction to LCD KoD mounted on board MB1166. 2. Driver description: --------------------- + Initialization steps: o Initialize the LCD using the BSP_LCD_Init() function. o Select the LCD layer to be used using the BSP_LCD_SelectLayer() function. o Enable the LCD display using the BSP_LCD_DisplayOn() function. + Options o Configure and enable the color keying functionality using the BSP_LCD_SetColorKeying() function. o Modify in the fly the transparency and/or the frame buffer address using the following functions: - BSP_LCD_SetTransparency() - BSP_LCD_SetLayerAddress() + Display on LCD o Clear the whole LCD using BSP_LCD_Clear() function or only one specified string line using the BSP_LCD_ClearStringLine() function. o Display a character on the specified line and column using the BSP_LCD_DisplayChar() function or a complete string line using the BSP_LCD_DisplayStringAtLine() function. o Display a string line on the specified position (x,y in pixel) and align mode using the BSP_LCD_DisplayStringAtLine() function. o Draw and fill a basic shapes (dot, line, rectangle, circle, ellipse, .. bitmap) on LCD using the available set of functions. ------------------------------------------------------------------------------*//* ... */ /* Includes ------------------------------------------------------------------*/ #include "stm32469i_eval_lcd.h" #include "../../../Utilities/Fonts/fonts.h" #include "../../../Utilities/Fonts/font24.c" #include "../../../Utilities/Fonts/font20.c" #include "../../../Utilities/Fonts/font16.c" #include "../../../Utilities/Fonts/font12.c" #include "../../../Utilities/Fonts/font8.c" 7 includes /** @addtogroup BSP * @{ *//* ... */ /** @addtogroup STM32469I_EVAL * @{ *//* ... */ /** @defgroup STM32469I_EVAL_LCD STM32469I EVAL LCD * @{ *//* ... */ /** @defgroup STM32469I-EVAL_LCD_Private_TypesDefinitions STM32469I EVAL LCD Private TypesDefinitions * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup STM32469I-EVAL_LCD_Private_Defines STM32469I EVAL LCD Private Defines * @{ *//* ... */ static DSI_VidCfgTypeDef hdsivideo_handle; /** * @} *//* ... */ /** @defgroup STM32469I-EVAL_LCD_Private_Macros STM32469I EVAL LCD Private Macros * @{ *//* ... */ #define ABS(X) ((X) > 0 ? (X) : -(X)) #define POLY_X(Z) ((int32_t)((Points + (Z))->X)) #define POLY_Y(Z) ((int32_t)((Points + (Z))->Y)) /** * @} *//* ... */ /** @defgroup STM32469I-EVAL_LCD_Exported_Variables STM32469I EVAL LCD Exported Variables * @{ *//* ... */ DMA2D_HandleTypeDef hdma2d_eval; LTDC_HandleTypeDef hltdc_eval; DSI_HandleTypeDef hdsi_eval; uint32_t lcd_x_size = OTM8009A_800X480_WIDTH; uint32_t lcd_y_size = OTM8009A_800X480_HEIGHT; /** * @} *//* ... */ /** @defgroup STM32469I-EVAL_LCD_Private_Variables STM32469I EVAL LCD Private Variables * @{ *//* ... */ /** * @brief Default Active LTDC Layer in which drawing is made is LTDC Layer Background *//* ... */ static uint32_t ActiveLayer = LTDC_ACTIVE_LAYER_BACKGROUND; /** * @brief Current Drawing Layer properties variable *//* ... */ static LCD_DrawPropTypeDef DrawProp[LTDC_MAX_LAYER_NUMBER]; /** * @} *//* ... */ /** @defgroup STM32469I-EVAL_LCD_Private_FunctionPrototypes STM32469I EVAL LCD Private FunctionPrototypes * @{ *//* ... */ static void DrawChar(uint16_t Xpos, uint16_t Ypos, const uint8_t *c); static void FillTriangle(uint16_t x1, uint16_t x2, uint16_t x3, uint16_t y1, uint16_t y2, uint16_t y3); static void LL_FillBuffer(uint32_t LayerIndex, void *pDst, uint32_t xSize, uint32_t ySize, uint32_t OffLine, uint32_t ColorIndex); static void LL_ConvertLineToARGB8888(void * pSrc, void *pDst, uint32_t xSize, uint32_t ColorMode); /** * @} *//* ... */ /** @defgroup STM32469I-EVAL_LCD_Exported_Functions STM32469I EVAL LCD Exported Functions * @{ *//* ... */ /** * @brief Initializes the DSI LCD. * @retval LCD state *//* ... */ uint8_t BSP_LCD_Init(void) { return (BSP_LCD_InitEx(LCD_ORIENTATION_LANDSCAPE)); }{ ... } /** * @brief Initializes the DSI LCD. * The ititialization is done as below: * - DSI PLL ititialization * - DSI ititialization * - LTDC ititialization * - OTM8009A LCD Display IC Driver ititialization * @retval LCD state *//* ... */ uint8_t BSP_LCD_InitEx(LCD_OrientationTypeDef orientation) { DSI_PLLInitTypeDef dsiPllInit; DSI_PHY_TimerTypeDef PhyTimings; static RCC_PeriphCLKInitTypeDef PeriphClkInitStruct; uint32_t LcdClock = 27429; /*!< LcdClk = 27429 kHz */ uint32_t laneByteClk_kHz = 0; uint32_t VSA; /*!< Vertical start active time in units of lines */ uint32_t VBP; /*!< Vertical Back Porch time in units of lines */ uint32_t VFP; /*!< Vertical Front Porch time in units of lines */ uint32_t VACT; /*!< Vertical Active time in units of lines = imageSize Y in pixels to display */ uint32_t HSA; /*!< Horizontal start active time in units of lcdClk */ uint32_t HBP; /*!< Horizontal Back Porch time in units of lcdClk */ uint32_t HFP; /*!< Horizontal Front Porch time in units of lcdClk */ uint32_t HACT; /*!< Horizontal Active time in units of lcdClk = imageSize X in pixels to display */ /* Toggle Hardware Reset of the DSI LCD using * its XRES signal (active low) *//* ... */ BSP_LCD_Reset(); /* Call first MSP Initialize only in case of first initialization * This will set IP blocks LTDC, DSI and DMA2D * - out of reset * - clocked * - NVIC IRQ related to IP blocks enabled *//* ... */ BSP_LCD_MspInit(); /*************************DSI Initialization***********************************/ /* Base address of DSI Host/Wrapper registers to be set before calling De-Init */ hdsi_eval.Instance = DSI; HAL_DSI_DeInit(&(hdsi_eval)); dsiPllInit.PLLNDIV = 100; dsiPllInit.PLLIDF = DSI_PLL_IN_DIV5; dsiPllInit.PLLODF = DSI_PLL_OUT_DIV1; laneByteClk_kHz = 62500; /* 500 MHz / 8 = 62.5 MHz = 62500 kHz */ /* Set number of Lanes */ hdsi_eval.Init.NumberOfLanes = DSI_TWO_DATA_LANES; /* TXEscapeCkdiv = f(LaneByteClk)/15.62 = 4 */ hdsi_eval.Init.TXEscapeCkdiv = laneByteClk_kHz/15620; HAL_DSI_Init(&(hdsi_eval), &(dsiPllInit)); /* Timing parameters for all Video modes * Set Timing parameters of LTDC depending on its chosen orientation *//* ... */ if(orientation == LCD_ORIENTATION_PORTRAIT) { lcd_x_size = OTM8009A_480X800_WIDTH; /* 480 */ lcd_y_size = OTM8009A_480X800_HEIGHT; /* 800 */ }if (orientation == LCD_ORIENTATION_PORTRAIT) { ... } else { /* lcd_orientation == LCD_ORIENTATION_LANDSCAPE */ lcd_x_size = OTM8009A_800X480_WIDTH; /* 800 */ lcd_y_size = OTM8009A_800X480_HEIGHT; /* 480 */ }else { ... } HACT = lcd_x_size; VACT = lcd_y_size; /* The following values are same for portrait and landscape orientations */ VSA = OTM8009A_480X800_VSYNC; /* 12 */ VBP = OTM8009A_480X800_VBP; /* 12 */ VFP = OTM8009A_480X800_VFP; /* 12 */ HSA = OTM8009A_480X800_HSYNC; /* 63 */ HBP = OTM8009A_480X800_HBP; /* 120 */ HFP = OTM8009A_480X800_HFP; /* 120 */ hdsivideo_handle.VirtualChannelID = LCD_OTM8009A_ID; hdsivideo_handle.ColorCoding = LCD_DSI_PIXEL_DATA_FMT_RBG888; hdsivideo_handle.VSPolarity = DSI_VSYNC_ACTIVE_HIGH; hdsivideo_handle.HSPolarity = DSI_HSYNC_ACTIVE_HIGH; hdsivideo_handle.DEPolarity = DSI_DATA_ENABLE_ACTIVE_HIGH; hdsivideo_handle.Mode = DSI_VID_MODE_BURST; /* Mode Video burst ie : one LgP per line */ hdsivideo_handle.NullPacketSize = 0xFFF; hdsivideo_handle.NumberOfChunks = 0; hdsivideo_handle.PacketSize = HACT; /* Value depending on display orientation choice portrait/landscape */ hdsivideo_handle.HorizontalSyncActive = (HSA * laneByteClk_kHz) / LcdClock; hdsivideo_handle.HorizontalBackPorch = (HBP * laneByteClk_kHz) / LcdClock; hdsivideo_handle.HorizontalLine = ((HACT + HSA + HBP + HFP) * laneByteClk_kHz) / LcdClock; /* Value depending on display orientation choice portrait/landscape */ hdsivideo_handle.VerticalSyncActive = VSA; hdsivideo_handle.VerticalBackPorch = VBP; hdsivideo_handle.VerticalFrontPorch = VFP; hdsivideo_handle.VerticalActive = VACT; /* Value depending on display orientation choice portrait/landscape */ /* Enable or disable sending LP command while streaming is active in video mode */ hdsivideo_handle.LPCommandEnable = DSI_LP_COMMAND_ENABLE; /* Enable sending commands in mode LP (Low Power) */ /* Largest packet size possible to transmit in LP mode in VSA, VBP, VFP regions */ /* Only useful when sending LP packets is allowed while streaming is active in video mode */ hdsivideo_handle.LPLargestPacketSize = 16; /* Largest packet size possible to transmit in LP mode in HFP region during VACT period */ /* Only useful when sending LP packets is allowed while streaming is active in video mode */ hdsivideo_handle.LPVACTLargestPacketSize = 0; /* Specify for each region of the video frame, if the transmission of command in LP mode is allowed in this region */ /* while streaming is active in video mode */ hdsivideo_handle.LPHorizontalFrontPorchEnable = DSI_LP_HFP_ENABLE; /* Allow sending LP commands during HFP period */ hdsivideo_handle.LPHorizontalBackPorchEnable = DSI_LP_HBP_ENABLE; /* Allow sending LP commands during HBP period */ hdsivideo_handle.LPVerticalActiveEnable = DSI_LP_VACT_ENABLE; /* Allow sending LP commands during VACT period */ hdsivideo_handle.LPVerticalFrontPorchEnable = DSI_LP_VFP_ENABLE; /* Allow sending LP commands during VFP period */ hdsivideo_handle.LPVerticalBackPorchEnable = DSI_LP_VBP_ENABLE; /* Allow sending LP commands during VBP period */ hdsivideo_handle.LPVerticalSyncActiveEnable = DSI_LP_VSYNC_ENABLE; /* Allow sending LP commands during VSync = VSA period */ /* Configure DSI Video mode timings with settings set above */ HAL_DSI_ConfigVideoMode(&(hdsi_eval), &(hdsivideo_handle)); /* Configure DSI PHY HS2LP and LP2HS timings */ PhyTimings.ClockLaneHS2LPTime = 35; PhyTimings.ClockLaneLP2HSTime = 35; PhyTimings.DataLaneHS2LPTime = 35; PhyTimings.DataLaneLP2HSTime = 35; PhyTimings.DataLaneMaxReadTime = 0; PhyTimings.StopWaitTime = 10; HAL_DSI_ConfigPhyTimer(&hdsi_eval, &PhyTimings); DSI Initialization /*************************End DSI Initialization*******************************/ End DSI Initialization /************************LTDC Initialization***********************************/ /* Timing Configuration */ hltdc_eval.Init.HorizontalSync = (HSA - 1); hltdc_eval.Init.AccumulatedHBP = (HSA + HBP - 1); hltdc_eval.Init.AccumulatedActiveW = (lcd_x_size + HSA + HBP - 1); hltdc_eval.Init.TotalWidth = (lcd_x_size + HSA + HBP + HFP - 1); /* Initialize the LCD pixel width and pixel height */ hltdc_eval.LayerCfg->ImageWidth = lcd_x_size; hltdc_eval.LayerCfg->ImageHeight = lcd_y_size; /* LCD clock configuration */ /* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 384 Mhz */ /* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 384 MHz / 7 = 54.857 MHz */ /* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_2 = 54.857 MHz / 2 = 27.429 MHz */ PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC; PeriphClkInitStruct.PLLSAI.PLLSAIN = 384; PeriphClkInitStruct.PLLSAI.PLLSAIR = 7; PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_2; HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct); /* Background value */ hltdc_eval.Init.Backcolor.Blue = 0; hltdc_eval.Init.Backcolor.Green = 0; hltdc_eval.Init.Backcolor.Red = 0; hltdc_eval.Init.PCPolarity = LTDC_PCPOLARITY_IPC; hltdc_eval.Instance = LTDC; /* Get LTDC Configuration from DSI Configuration */ HAL_LTDC_StructInitFromVideoConfig(&(hltdc_eval), &(hdsivideo_handle)); /* Initialize the LTDC */ HAL_LTDC_Init(&hltdc_eval); /* Enable the DSI host and wrapper after the LTDC initialization To avoid any synchronization issue, the DSI shall be started after enabling the LTDC *//* ... */ HAL_DSI_Start(&(hdsi_eval)); #if !defined(DATA_IN_ExtSDRAM) /* Initialize the SDRAM */ BSP_SDRAM_Init();/* ... */ #endif /* DATA_IN_ExtSDRAM */ /* Initialize the font */ BSP_LCD_SetFont(&LCD_DEFAULT_FONT); LTDC Initialization /************************End LTDC Initialization*******************************/ End LTDC Initialization /***********************OTM8009A Initialization********************************/ /* Initialize the OTM8009A LCD Display IC Driver (KoD LCD IC Driver) * depending on configuration set in 'hdsivideo_handle'. *//* ... */ OTM8009A_Init(OTM8009A_FORMAT_RGB888, orientation); OTM8009A Initialization /***********************End OTM8009A Initialization****************************/ return LCD_OK; }{ ... } /** * @brief BSP LCD Reset * Hw reset the LCD DSI activating its XRES signal (active low for some time) * and desactivating it later. * This signal is only cabled on Eval Rev B and beyond. *//* ... */ void BSP_LCD_Reset(void) { #if !defined(USE_STM32469I_EVAL_REVA) /* EVAL Rev B and beyond : reset the LCD by activation of XRES (active low) connected to PK7 */ GPIO_InitTypeDef gpio_init_structure; __HAL_RCC_GPIOK_CLK_ENABLE(); /* Configure the GPIO on PK7 */ gpio_init_structure.Pin = GPIO_PIN_7; gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP; gpio_init_structure.Pull = GPIO_PULLUP; gpio_init_structure.Speed = GPIO_SPEED_HIGH; HAL_GPIO_Init(GPIOK, &gpio_init_structure); /* Activate XRES active low */ HAL_GPIO_WritePin(GPIOK, GPIO_PIN_7, GPIO_PIN_RESET); HAL_Delay(20); /* wait 20 ms */ /* Deactivate XRES */ HAL_GPIO_WritePin(GPIOK, GPIO_PIN_7, GPIO_PIN_SET); /* Wait for 10ms after releasing XRES before sending commands */ HAL_Delay(10); /* ... */ #else #endif /* USE_STM32469I_EVAL_REVA == 0 */ }{ ... } /** * @brief Gets the LCD X size. * @retval Used LCD X size *//* ... */ uint32_t BSP_LCD_GetXSize(void) { return (lcd_x_size); }{ ... } /** * @brief Gets the LCD Y size. * @retval Used LCD Y size *//* ... */ uint32_t BSP_LCD_GetYSize(void) { return (lcd_y_size); }{ ... } /** * @brief Set the LCD X size. * @param imageWidthPixels : uint32_t image width in pixels unit *//* ... */ void BSP_LCD_SetXSize(uint32_t imageWidthPixels) { hltdc_eval.LayerCfg[ActiveLayer].ImageWidth = imageWidthPixels; }{ ... } /** * @brief Set the LCD Y size. * @param imageHeightPixels : uint32_t image height in lines unit *//* ... */ void BSP_LCD_SetYSize(uint32_t imageHeightPixels) { hltdc_eval.LayerCfg[ActiveLayer].ImageHeight = imageHeightPixels; }{ ... } /** * @brief Initializes the LCD layers. * @param LayerIndex: Layer foreground or background * @param FB_Address: Layer frame buffer *//* ... */ void BSP_LCD_LayerDefaultInit(uint16_t LayerIndex, uint32_t FB_Address) { LCD_LayerCfgTypeDef Layercfg; /* Layer Init */ Layercfg.WindowX0 = 0; Layercfg.WindowX1 = BSP_LCD_GetXSize(); Layercfg.WindowY0 = 0; Layercfg.WindowY1 = BSP_LCD_GetYSize(); Layercfg.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888; Layercfg.FBStartAdress = FB_Address; Layercfg.Alpha = 255; Layercfg.Alpha0 = 0; Layercfg.Backcolor.Blue = 0; Layercfg.Backcolor.Green = 0; Layercfg.Backcolor.Red = 0; Layercfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA; Layercfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA; Layercfg.ImageWidth = BSP_LCD_GetXSize(); Layercfg.ImageHeight = BSP_LCD_GetYSize(); HAL_LTDC_ConfigLayer(&hltdc_eval, &Layercfg, LayerIndex); DrawProp[LayerIndex].BackColor = LCD_COLOR_WHITE; DrawProp[LayerIndex].pFont = &Font24; DrawProp[LayerIndex].TextColor = LCD_COLOR_BLACK; }{ ... } /** * @brief Selects the LCD Layer. * @param LayerIndex: Layer foreground or background *//* ... */ void BSP_LCD_SelectLayer(uint32_t LayerIndex) { ActiveLayer = LayerIndex; }{ ... } /** * @brief Sets an LCD Layer visible * @param LayerIndex: Visible Layer * @param State: New state of the specified layer * This parameter can be one of the following values: * @arg ENABLE * @arg DISABLE *//* ... */ void BSP_LCD_SetLayerVisible(uint32_t LayerIndex, FunctionalState State) { if(State == ENABLE) { __HAL_LTDC_LAYER_ENABLE(&(hltdc_eval), LayerIndex); }if (State == ENABLE) { ... } else { __HAL_LTDC_LAYER_DISABLE(&(hltdc_eval), LayerIndex); }else { ... } __HAL_LTDC_RELOAD_CONFIG(&(hltdc_eval)); }{ ... } /** * @brief Configures the transparency. * @param LayerIndex: Layer foreground or background. * @param Transparency: Transparency * This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFF *//* ... */ void BSP_LCD_SetTransparency(uint32_t LayerIndex, uint8_t Transparency) { HAL_LTDC_SetAlpha(&(hltdc_eval), Transparency, LayerIndex); }{ ... } /** * @brief Sets an LCD layer frame buffer address. * @param LayerIndex: Layer foreground or background * @param Address: New LCD frame buffer value *//* ... */ void BSP_LCD_SetLayerAddress(uint32_t LayerIndex, uint32_t Address) { HAL_LTDC_SetAddress(&(hltdc_eval), Address, LayerIndex); }{ ... } /** * @brief Sets display window. * @param LayerIndex: Layer index * @param Xpos: LCD X position * @param Ypos: LCD Y position * @param Width: LCD window width * @param Height: LCD window height *//* ... */ void BSP_LCD_SetLayerWindow(uint16_t LayerIndex, uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height) { /* Reconfigure the layer size */ HAL_LTDC_SetWindowSize(&(hltdc_eval), Width, Height, LayerIndex); /* Reconfigure the layer position */ HAL_LTDC_SetWindowPosition(&(hltdc_eval), Xpos, Ypos, LayerIndex); }{ ... } /** * @brief Configures and sets the color keying. * @param LayerIndex: Layer foreground or background * @param RGBValue: Color reference *//* ... */ void BSP_LCD_SetColorKeying(uint32_t LayerIndex, uint32_t RGBValue) { /* Configure and Enable the color Keying for LCD Layer */ HAL_LTDC_ConfigColorKeying(&(hltdc_eval), RGBValue, LayerIndex); HAL_LTDC_EnableColorKeying(&(hltdc_eval), LayerIndex); }{ ... } /** * @brief Disables the color keying. * @param LayerIndex: Layer foreground or background *//* ... */ void BSP_LCD_ResetColorKeying(uint32_t LayerIndex) { /* Disable the color Keying for LCD Layer */ HAL_LTDC_DisableColorKeying(&(hltdc_eval), LayerIndex); }{ ... } /** * @brief Sets the LCD text color. * @param Color: Text color code ARGB(8-8-8-8) *//* ... */ void BSP_LCD_SetTextColor(uint32_t Color) { DrawProp[ActiveLayer].TextColor = Color; }{ ... } /** * @brief Gets the LCD text color. * @retval Used text color. *//* ... */ uint32_t BSP_LCD_GetTextColor(void) { return DrawProp[ActiveLayer].TextColor; }{ ... } /** * @brief Sets the LCD background color. * @param Color: Layer background color code ARGB(8-8-8-8) *//* ... */ void BSP_LCD_SetBackColor(uint32_t Color) { DrawProp[ActiveLayer].BackColor = Color; }{ ... } /** * @brief Gets the LCD background color. * @retval Used background color *//* ... */ uint32_t BSP_LCD_GetBackColor(void) { return DrawProp[ActiveLayer].BackColor; }{ ... } /** * @brief Sets the LCD text font. * @param fonts: Layer font to be used *//* ... */ void BSP_LCD_SetFont(sFONT *fonts) { DrawProp[ActiveLayer].pFont = fonts; }{ ... } /** * @brief Gets the LCD text font. * @retval Used layer font *//* ... */ sFONT *BSP_LCD_GetFont(void) { return DrawProp[ActiveLayer].pFont; }{ ... } /** * @brief Reads an LCD pixel. * @param Xpos: X position * @param Ypos: Y position * @retval RGB pixel color *//* ... */ uint32_t BSP_LCD_ReadPixel(uint16_t Xpos, uint16_t Ypos) { uint32_t ret = 0; if(hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB8888) { /* Read data value from SDRAM memory */ ret = *(__IO uint32_t*) (hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos))); }if (hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB8888) { ... } else if(hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB888) { /* Read data value from SDRAM memory */ ret = (*(__IO uint32_t*) (hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos))) & 0x00FFFFFF); }else if (hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB888) { ... } else if((hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565) || \ (hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \ (hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_AL88)) { /* Read data value from SDRAM memory */ ret = *(__IO uint16_t*) (hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos))); }else if ((hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565) || \ (hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \ (hltdc_eval.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_AL88)) { ... } else { /* Read data value from SDRAM memory */ ret = *(__IO uint8_t*) (hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos))); }else { ... } return ret; }{ ... } /** * @brief Clears the whole currently active layer of LTDC. * @param Color: Color of the background *//* ... */ void BSP_LCD_Clear(uint32_t Color) { /* Clear the LCD */ LL_FillBuffer(ActiveLayer, (uint32_t *)(hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress), BSP_LCD_GetXSize(), BSP_LCD_GetYSize(), 0, Color); }{ ... } /** * @brief Clears the selected line in currently active layer. * @param Line: Line to be cleared *//* ... */ void BSP_LCD_ClearStringLine(uint32_t Line) { uint32_t color_backup = DrawProp[ActiveLayer].TextColor; DrawProp[ActiveLayer].TextColor = DrawProp[ActiveLayer].BackColor; /* Draw rectangle with background color */ BSP_LCD_FillRect(0, (Line * DrawProp[ActiveLayer].pFont->Height), BSP_LCD_GetXSize(), DrawProp[ActiveLayer].pFont->Height); DrawProp[ActiveLayer].TextColor = color_backup; BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor); }{ ... } /** * @brief Displays one character in currently active layer. * @param Xpos: Start column address * @param Ypos: Line where to display the character shape. * @param Ascii: Character ascii code * This parameter must be a number between Min_Data = 0x20 and Max_Data = 0x7E *//* ... */ void BSP_LCD_DisplayChar(uint16_t Xpos, uint16_t Ypos, uint8_t Ascii) { DrawChar(Xpos, Ypos, &DrawProp[ActiveLayer].pFont->table[(Ascii-' ') *\ DrawProp[ActiveLayer].pFont->Height * ((DrawProp[ActiveLayer].pFont->Width + 7) / 8)]); }{ ... } /** * @brief Displays characters in currently active layer. * @param Xpos: X position (in pixel) * @param Ypos: Y position (in pixel) * @param Text: Pointer to string to display on LCD * @param Mode: Display mode * This parameter can be one of the following values: * @arg CENTER_MODE * @arg RIGHT_MODE * @arg LEFT_MODE *//* ... */ void BSP_LCD_DisplayStringAt(uint16_t Xpos, uint16_t Ypos, uint8_t *Text, Text_AlignModeTypdef Mode) { uint16_t refcolumn = 1, i = 0; uint32_t size = 0, xsize = 0; uint8_t *ptr = Text; /* Get the text size */ while (*ptr++) size ++ ; /* Characters number per line */ xsize = (BSP_LCD_GetXSize()/DrawProp[ActiveLayer].pFont->Width); switch (Mode) { case CENTER_MODE: { refcolumn = Xpos + ((xsize - size)* DrawProp[ActiveLayer].pFont->Width) / 2; break; ...}case CENTER_MODE: case LEFT_MODE: { refcolumn = Xpos; break; ...}case LEFT_MODE: case RIGHT_MODE: { refcolumn = - Xpos + ((xsize - size)*DrawProp[ActiveLayer].pFont->Width); break; ...}case RIGHT_MODE: default: { refcolumn = Xpos; break; ...}default }switch (Mode) { ... } /* Check that the Start column is located in the screen */ if ((refcolumn < 1) || (refcolumn >= 0x8000)) { refcolumn = 1; }if ((refcolumn < 1) || (refcolumn >= 0x8000)) { ... } /* Send the string character by character on LCD */ while ((*Text != 0) & (((BSP_LCD_GetXSize() - (i*DrawProp[ActiveLayer].pFont->Width)) & 0xFFFF) >= DrawProp[ActiveLayer].pFont->Width)) { /* Display one character on LCD */ BSP_LCD_DisplayChar(refcolumn, Ypos, *Text); /* Decrement the column position by 16 */ refcolumn += DrawProp[ActiveLayer].pFont->Width; /* Point on the next character */ Text++; i++; }while ((*Text != 0) & (((BSP_LCD_GetXSize() - (i*DrawProp[ActiveLayer].pFont->Width)) & 0xFFFF) >= DrawProp[ActiveLayer].pFont->Width)) { ... } }{ ... } /** * @brief Displays a maximum of 60 characters on the LCD. * @param Line: Line where to display the character shape * @param ptr: Pointer to string to display on LCD *//* ... */ void BSP_LCD_DisplayStringAtLine(uint16_t Line, uint8_t *ptr) { BSP_LCD_DisplayStringAt(0, LINE(Line), ptr, LEFT_MODE); }{ ... } /** * @brief Draws an horizontal line in currently active layer. * @param Xpos: X position * @param Ypos: Y position * @param Length: Line length *//* ... */ void BSP_LCD_DrawHLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length) { uint32_t Xaddress = 0; /* Get the line address */ Xaddress = (hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress) + 4*(BSP_LCD_GetXSize()*Ypos + Xpos); /* Write line */ LL_FillBuffer(ActiveLayer, (uint32_t *)Xaddress, Length, 1, 0, DrawProp[ActiveLayer].TextColor); }{ ... } /** * @brief Draws a vertical line in currently active layer. * @param Xpos: X position * @param Ypos: Y position * @param Length: Line length *//* ... */ void BSP_LCD_DrawVLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length) { uint32_t Xaddress = 0; /* Get the line address */ Xaddress = (hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress) + 4*(BSP_LCD_GetXSize()*Ypos + Xpos); /* Write line */ LL_FillBuffer(ActiveLayer, (uint32_t *)Xaddress, 1, Length, (BSP_LCD_GetXSize() - 1), DrawProp[ActiveLayer].TextColor); }{ ... } /** * @brief Draws an uni-line (between two points) in currently active layer. * @param x1: Point 1 X position * @param y1: Point 1 Y position * @param x2: Point 2 X position * @param y2: Point 2 Y position *//* ... */ void BSP_LCD_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2) { int16_t deltax = 0, deltay = 0, x = 0, y = 0, xinc1 = 0, xinc2 = 0, yinc1 = 0, yinc2 = 0, den = 0, num = 0, numadd = 0, numpixels = 0, curpixel = 0; deltax = ABS(x2 - x1); /* The difference between the x's */ deltay = ABS(y2 - y1); /* The difference between the y's */ x = x1; /* Start x off at the first pixel */ y = y1; /* Start y off at the first pixel */ if (x2 >= x1) /* The x-values are increasing */ { xinc1 = 1; xinc2 = 1; ...} else /* The x-values are decreasing */ { xinc1 = -1; xinc2 = -1; }else { ... } if (y2 >= y1) /* The y-values are increasing */ { yinc1 = 1; yinc2 = 1; ...} else /* The y-values are decreasing */ { yinc1 = -1; yinc2 = -1; }else { ... } if (deltax >= deltay) /* There is at least one x-value for every y-value */ { xinc1 = 0; /* Don't change the x when numerator >= denominator */ yinc2 = 0; /* Don't change the y for every iteration */ den = deltax; num = deltax / 2; numadd = deltay; numpixels = deltax; /* There are more x-values than y-values */ ...} else /* There is at least one y-value for every x-value */ { xinc2 = 0; /* Don't change the x for every iteration */ yinc1 = 0; /* Don't change the y when numerator >= denominator */ den = deltay; num = deltay / 2; numadd = deltax; numpixels = deltay; /* There are more y-values than x-values */ }else { ... } for (curpixel = 0; curpixel <= numpixels; curpixel++) { BSP_LCD_DrawPixel(x, y, DrawProp[ActiveLayer].TextColor); /* Draw the current pixel */ num += numadd; /* Increase the numerator by the top of the fraction */ if (num >= den) /* Check if numerator >= denominator */ { num -= den; /* Calculate the new numerator value */ x += xinc1; /* Change the x as appropriate */ y += yinc1; /* Change the y as appropriate */ ...} x += xinc2; /* Change the x as appropriate */ y += yinc2; /* Change the y as appropriate */ }for (curpixel = 0; curpixel <= numpixels; curpixel++) { ... } }{ ... } /** * @brief Draws a rectangle in currently active layer. * @param Xpos: X position * @param Ypos: Y position * @param Width: Rectangle width * @param Height: Rectangle height *//* ... */ void BSP_LCD_DrawRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height) { /* Draw horizontal lines */ BSP_LCD_DrawHLine(Xpos, Ypos, Width); BSP_LCD_DrawHLine(Xpos, (Ypos+ Height), Width); /* Draw vertical lines */ BSP_LCD_DrawVLine(Xpos, Ypos, Height); BSP_LCD_DrawVLine((Xpos + Width), Ypos, Height); }{ ... } /** * @brief Draws a circle in currently active layer. * @param Xpos: X position * @param Ypos: Y position * @param Radius: Circle radius *//* ... */ void BSP_LCD_DrawCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius) { int32_t D; /* Decision Variable */ uint32_t CurX; /* Current X Value */ uint32_t CurY; /* Current Y Value */ D = 3 - (Radius << 1); CurX = 0; CurY = Radius; while (CurX <= CurY) { BSP_LCD_DrawPixel((Xpos + CurX), (Ypos - CurY), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos - CurX), (Ypos - CurY), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos + CurY), (Ypos - CurX), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos - CurY), (Ypos - CurX), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos + CurX), (Ypos + CurY), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos - CurX), (Ypos + CurY), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos + CurY), (Ypos + CurX), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos - CurY), (Ypos + CurX), DrawProp[ActiveLayer].TextColor); if (D < 0) { D += (CurX << 2) + 6; }if (D < 0) { ... } else { D += ((CurX - CurY) << 2) + 10; CurY--; }else { ... } CurX++; }while (CurX <= CurY) { ... } }{ ... } /** * @brief Draws an poly-line (between many points) in currently active layer. * @param Points: Pointer to the points array * @param PointCount: Number of points *//* ... */ void BSP_LCD_DrawPolygon(pPoint Points, uint16_t PointCount) { int16_t X = 0, Y = 0; if(PointCount < 2) { return; }if (PointCount < 2) { ... } BSP_LCD_DrawLine(Points->X, Points->Y, (Points+PointCount-1)->X, (Points+PointCount-1)->Y); while(--PointCount) { X = Points->X; Y = Points->Y; Points++; BSP_LCD_DrawLine(X, Y, Points->X, Points->Y); }while (--PointCount) { ... } }{ ... } /** * @brief Draws an ellipse on LCD in currently active layer. * @param Xpos: X position * @param Ypos: Y position * @param XRadius: Ellipse X radius * @param YRadius: Ellipse Y radius *//* ... */ void BSP_LCD_DrawEllipse(int Xpos, int Ypos, int XRadius, int YRadius) { int x = 0, y = -YRadius, err = 2-2*XRadius, e2; float K = 0, rad1 = 0, rad2 = 0; rad1 = XRadius; rad2 = YRadius; K = (float)(rad2/rad1); do { BSP_LCD_DrawPixel((Xpos-(uint16_t)(x/K)), (Ypos+y), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos+(uint16_t)(x/K)), (Ypos+y), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos+(uint16_t)(x/K)), (Ypos-y), DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawPixel((Xpos-(uint16_t)(x/K)), (Ypos-y), DrawProp[ActiveLayer].TextColor); e2 = err; if (e2 <= x) { err += ++x*2+1; if (-y == x && e2 <= y) e2 = 0; }if (e2 <= x) { ... } if (e2 > y) err += ++y*2+1; ...} while (y <= 0); }{ ... } /** * @brief Draws a bitmap picture loaded in the internal Flash (32 bpp) in currently active layer. * @param Xpos: Bmp X position in the LCD * @param Ypos: Bmp Y position in the LCD * @param pbmp: Pointer to Bmp picture address in the internal Flash *//* ... */ void BSP_LCD_DrawBitmap(uint32_t Xpos, uint32_t Ypos, uint8_t *pbmp) { uint32_t index = 0, width = 0, height = 0, bit_pixel = 0; uint32_t Address; uint32_t InputColorMode = 0; /* Get bitmap data address offset */ index = pbmp[10] + (pbmp[11] << 8) + (pbmp[12] << 16) + (pbmp[13] << 24); /* Read bitmap width */ width = pbmp[18] + (pbmp[19] << 8) + (pbmp[20] << 16) + (pbmp[21] << 24); /* Read bitmap height */ height = pbmp[22] + (pbmp[23] << 8) + (pbmp[24] << 16) + (pbmp[25] << 24); /* Read bit/pixel */ bit_pixel = pbmp[28] + (pbmp[29] << 8); /* Set the address */ Address = hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress + (((BSP_LCD_GetXSize()*Ypos) + Xpos)*(4)); /* Get the layer pixel format */ if ((bit_pixel/8) == 4) { InputColorMode = CM_ARGB8888; }if ((bit_pixel/8) == 4) { ... } else if ((bit_pixel/8) == 2) { InputColorMode = CM_RGB565; }else if ((bit_pixel/8) == 2) { ... } else { InputColorMode = CM_RGB888; }else { ... } /* Bypass the bitmap header */ pbmp += (index + (width * (height - 1) * (bit_pixel/8))); /* Convert picture to ARGB8888 pixel format */ for(index=0; index < height; index++) { /* Pixel format conversion */ LL_ConvertLineToARGB8888((uint32_t *)pbmp, (uint32_t *)Address, width, InputColorMode); /* Increment the source and destination buffers */ Address+= (BSP_LCD_GetXSize()*4); pbmp -= width*(bit_pixel/8); }for (index=0; index < height; index++) { ... } }{ ... } /** * @brief Draws a full rectangle in currently active layer. * @param Xpos: X position * @param Ypos: Y position * @param Width: Rectangle width * @param Height: Rectangle height *//* ... */ void BSP_LCD_FillRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height) { uint32_t Xaddress = 0; /* Set the text color */ BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor); /* Get the rectangle start address */ Xaddress = (hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress) + 4*(BSP_LCD_GetXSize()*Ypos + Xpos); /* Fill the rectangle */ LL_FillBuffer(ActiveLayer, (uint32_t *)Xaddress, Width, Height, (BSP_LCD_GetXSize() - Width), DrawProp[ActiveLayer].TextColor); }{ ... } /** * @brief Draws a full circle in currently active layer. * @param Xpos: X position * @param Ypos: Y position * @param Radius: Circle radius *//* ... */ void BSP_LCD_FillCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius) { int32_t D; /* Decision Variable */ uint32_t CurX; /* Current X Value */ uint32_t CurY; /* Current Y Value */ D = 3 - (Radius << 1); CurX = 0; CurY = Radius; BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor); while (CurX <= CurY) { if(CurY > 0) { BSP_LCD_DrawHLine(Xpos - CurY, Ypos + CurX, 2*CurY); BSP_LCD_DrawHLine(Xpos - CurY, Ypos - CurX, 2*CurY); }if (CurY > 0) { ... } if(CurX > 0) { BSP_LCD_DrawHLine(Xpos - CurX, Ypos - CurY, 2*CurX); BSP_LCD_DrawHLine(Xpos - CurX, Ypos + CurY, 2*CurX); }if (CurX > 0) { ... } if (D < 0) { D += (CurX << 2) + 6; }if (D < 0) { ... } else { D += ((CurX - CurY) << 2) + 10; CurY--; }else { ... } CurX++; }while (CurX <= CurY) { ... } BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor); BSP_LCD_DrawCircle(Xpos, Ypos, Radius); }{ ... } /** * @brief Draws a full poly-line (between many points) in currently active layer. * @param Points: Pointer to the points array * @param PointCount: Number of points *//* ... */ void BSP_LCD_FillPolygon(pPoint Points, uint16_t PointCount) { int16_t X = 0, Y = 0, X2 = 0, Y2 = 0, X_center = 0, Y_center = 0, X_first = 0, Y_first = 0, pixelX = 0, pixelY = 0, counter = 0; uint16_t IMAGE_LEFT = 0, IMAGE_RIGHT = 0, IMAGE_TOP = 0, IMAGE_BOTTOM = 0; IMAGE_LEFT = IMAGE_RIGHT = Points->X; IMAGE_TOP= IMAGE_BOTTOM = Points->Y; for(counter = 1; counter < PointCount; counter++) { pixelX = POLY_X(counter); if(pixelX < IMAGE_LEFT) { IMAGE_LEFT = pixelX; }if (pixelX < IMAGE_LEFT) { ... } if(pixelX > IMAGE_RIGHT) { IMAGE_RIGHT = pixelX; }if (pixelX > IMAGE_RIGHT) { ... } pixelY = POLY_Y(counter); if(pixelY < IMAGE_TOP) { IMAGE_TOP = pixelY; }if (pixelY < IMAGE_TOP) { ... } if(pixelY > IMAGE_BOTTOM) { IMAGE_BOTTOM = pixelY; }if (pixelY > IMAGE_BOTTOM) { ... } }for (counter = 1; counter < PointCount; counter++) { ... } if(PointCount < 2) { return; }if (PointCount < 2) { ... } X_center = (IMAGE_LEFT + IMAGE_RIGHT)/2; Y_center = (IMAGE_BOTTOM + IMAGE_TOP)/2; X_first = Points->X; Y_first = Points->Y; while(--PointCount) { X = Points->X; Y = Points->Y; Points++; X2 = Points->X; Y2 = Points->Y; FillTriangle(X, X2, X_center, Y, Y2, Y_center); FillTriangle(X, X_center, X2, Y, Y_center, Y2); FillTriangle(X_center, X2, X, Y_center, Y2, Y); }while (--PointCount) { ... } FillTriangle(X_first, X2, X_center, Y_first, Y2, Y_center); FillTriangle(X_first, X_center, X2, Y_first, Y_center, Y2); FillTriangle(X_center, X2, X_first, Y_center, Y2, Y_first); }{ ... } /** * @brief Draws a full ellipse in currently active layer. * @param Xpos: X position * @param Ypos: Y position * @param XRadius: Ellipse X radius * @param YRadius: Ellipse Y radius *//* ... */ void BSP_LCD_FillEllipse(int Xpos, int Ypos, int XRadius, int YRadius) { int x = 0, y = -YRadius, err = 2-2*XRadius, e2; float K = 0, rad1 = 0, rad2 = 0; rad1 = XRadius; rad2 = YRadius; K = (float)(rad2/rad1); do { BSP_LCD_DrawHLine((Xpos-(uint16_t)(x/K)), (Ypos+y), (2*(uint16_t)(x/K) + 1)); BSP_LCD_DrawHLine((Xpos-(uint16_t)(x/K)), (Ypos-y), (2*(uint16_t)(x/K) + 1)); e2 = err; if (e2 <= x) { err += ++x*2+1; if (-y == x && e2 <= y) e2 = 0; }if (e2 <= x) { ... } if (e2 > y) err += ++y*2+1; ...} while (y <= 0); }{ ... } /** * @brief Switch back on the display if was switched off by previous call of BSP_LCD_DisplayOff(). * Exit DSI ULPM mode if was allowed and configured in Dsi Configuration. *//* ... */ void BSP_LCD_DisplayOn(void) { /* Send Display on DCS command to display */ HAL_DSI_ShortWrite(&(hdsi_eval), hdsivideo_handle.VirtualChannelID, DSI_DCS_SHORT_PKT_WRITE_P1, OTM8009A_CMD_DISPON, 0x00); }{ ... } /** * @brief Switch Off the display. * Enter DSI ULPM mode if was allowed and configured in Dsi Configuration. *//* ... */ void BSP_LCD_DisplayOff(void) { /* Send Display off DCS Command to display */ HAL_DSI_ShortWrite(&(hdsi_eval), hdsivideo_handle.VirtualChannelID, DSI_DCS_SHORT_PKT_WRITE_P1, OTM8009A_CMD_DISPOFF, 0x00); }{ ... } /** * @brief DCS or Generic short/long write command * @param NbrParams: Number of parameters. It indicates the write command mode: * If inferior to 2, a long write command is performed else short. * @param pParams: Pointer to parameter values table. * @retval HAL status *//* ... */ void DSI_IO_WriteCmd(uint32_t NbrParams, uint8_t *pParams) { if(NbrParams <= 1) { HAL_DSI_ShortWrite(&hdsi_eval, LCD_OTM8009A_ID, DSI_DCS_SHORT_PKT_WRITE_P1, pParams[0], pParams[1]); }if (NbrParams <= 1) { ... } else { HAL_DSI_LongWrite(&hdsi_eval, LCD_OTM8009A_ID, DSI_DCS_LONG_PKT_WRITE, NbrParams, pParams[NbrParams], pParams); }else { ... } }{ ... } /******************************************************************************* LTDC, DMA2D and DSI BSP Routines *******************************************************************************//* ... */ /** * @brief Handles DMA2D interrupt request. * @note : Can be surcharged by application code implementation of the function. *//* ... */ __weak void BSP_LCD_DMA2D_IRQHandler(void) { HAL_DMA2D_IRQHandler(&hdma2d_eval); }{ ... } /** * @brief Handles DSI interrupt request. * @note : Can be surcharged by application code implementation of the function. *//* ... */ __weak void BSP_LCD_DSI_IRQHandler(void) { HAL_DSI_IRQHandler(&(hdsi_eval)); }{ ... } /** * @brief Handles LTDC interrupt request. * @note : Can be surcharged by application code implementation of the function. *//* ... */ __weak void BSP_LCD_LTDC_IRQHandler(void) { HAL_LTDC_IRQHandler(&(hltdc_eval)); }{ ... } /** * @brief De-Initializes the BSP LCD Msp * Application can surcharge if needed this function implementation. *//* ... */ __weak void BSP_LCD_MspDeInit(void) { /** @brief Disable IRQ of LTDC IP */ HAL_NVIC_DisableIRQ(LTDC_IRQn); /** @brief Disable IRQ of DMA2D IP */ HAL_NVIC_DisableIRQ(DMA2D_IRQn); /** @brief Disable IRQ of DSI IP */ HAL_NVIC_DisableIRQ(DSI_IRQn); /** @brief Force and let in reset state LTDC, DMA2D and DSI Host + Wrapper IPs */ __HAL_RCC_LTDC_FORCE_RESET(); __HAL_RCC_DMA2D_FORCE_RESET(); __HAL_RCC_DSI_FORCE_RESET(); /** @brief Disable the LTDC, DMA2D and DSI Host and Wrapper clocks */ __HAL_RCC_LTDC_CLK_DISABLE(); __HAL_RCC_DMA2D_CLK_DISABLE(); __HAL_RCC_DSI_CLK_DISABLE(); }{ ... } /** * @brief Initialize the BSP LCD Msp. * Application can surcharge if needed this function implementation *//* ... */ __weak void BSP_LCD_MspInit(void) { /** @brief Enable the LTDC clock */ __HAL_RCC_LTDC_CLK_ENABLE(); /** @brief Toggle Sw reset of LTDC IP */ __HAL_RCC_LTDC_FORCE_RESET(); __HAL_RCC_LTDC_RELEASE_RESET(); /** @brief Enable the DMA2D clock */ __HAL_RCC_DMA2D_CLK_ENABLE(); /** @brief Toggle Sw reset of DMA2D IP */ __HAL_RCC_DMA2D_FORCE_RESET(); __HAL_RCC_DMA2D_RELEASE_RESET(); /** @brief Enable DSI Host and wrapper clocks */ __HAL_RCC_DSI_CLK_ENABLE(); /** @brief Soft Reset the DSI Host and wrapper */ __HAL_RCC_DSI_FORCE_RESET(); __HAL_RCC_DSI_RELEASE_RESET(); /** @brief NVIC configuration for LTDC interrupt that is now enabled */ HAL_NVIC_SetPriority(LTDC_IRQn, 3, 0); HAL_NVIC_EnableIRQ(LTDC_IRQn); /** @brief NVIC configuration for DMA2D interrupt that is now enabled */ HAL_NVIC_SetPriority(DMA2D_IRQn, 3, 0); HAL_NVIC_EnableIRQ(DMA2D_IRQn); /** @brief NVIC configuration for DSI interrupt that is now enabled */ HAL_NVIC_SetPriority(DSI_IRQn, 3, 0); HAL_NVIC_EnableIRQ(DSI_IRQn); }{ ... } /** * @brief This function handles LTDC Error interrupt Handler. * @note : Can be surcharged by application code implementation of the function. *//* ... */ __weak void BSP_LCD_LTDC_ER_IRQHandler(void) { HAL_LTDC_IRQHandler(&(hltdc_eval)); }{ ... } /** * @brief Draws a pixel on LCD. * @param Xpos: X position * @param Ypos: Y position * @param RGB_Code: Pixel color in ARGB mode (8-8-8-8) *//* ... */ void BSP_LCD_DrawPixel(uint16_t Xpos, uint16_t Ypos, uint32_t RGB_Code) { /* Write data value to all SDRAM memory */ *(__IO uint32_t*) (hltdc_eval.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos))) = RGB_Code; }{ ... } /** * @brief Draws a character on LCD. * @param Xpos: Line where to display the character shape * @param Ypos: Start column address * @param c: Pointer to the character data *//* ... */ static void DrawChar(uint16_t Xpos, uint16_t Ypos, const uint8_t *c) { uint32_t i = 0, j = 0; uint16_t height, width; uint8_t offset; uint8_t *pchar; uint32_t line; height = DrawProp[ActiveLayer].pFont->Height; width = DrawProp[ActiveLayer].pFont->Width; offset = 8 *((width + 7)/8) - width ; for(i = 0; i < height; i++) { pchar = ((uint8_t *)c + (width + 7)/8 * i); switch(((width + 7)/8)) { case 1: line = pchar[0]; break; case 1: case 2: line = (pchar[0]<< 8) | pchar[1]; break; case 2: case 3: default: line = (pchar[0]<< 16) | (pchar[1]<< 8) | pchar[2]; break;default }switch (((width + 7)/8)) { ... } for (j = 0; j < width; j++) { if(line & (1 << (width- j + offset- 1))) { BSP_LCD_DrawPixel((Xpos + j), Ypos, DrawProp[ActiveLayer].TextColor); }if (line & (1 << (width- j + offset- 1))) { ... } else { BSP_LCD_DrawPixel((Xpos + j), Ypos, DrawProp[ActiveLayer].BackColor); }else { ... } }for (j = 0; j < width; j++) { ... } Ypos++; }for (i = 0; i < height; i++) { ... } }{ ... } /** * @brief Fills a triangle (between 3 points). * @param x1: Point 1 X position * @param y1: Point 1 Y position * @param x2: Point 2 X position * @param y2: Point 2 Y position * @param x3: Point 3 X position * @param y3: Point 3 Y position *//* ... */ static void FillTriangle(uint16_t x1, uint16_t x2, uint16_t x3, uint16_t y1, uint16_t y2, uint16_t y3) { int16_t deltax = 0, deltay = 0, x = 0, y = 0, xinc1 = 0, xinc2 = 0, yinc1 = 0, yinc2 = 0, den = 0, num = 0, numadd = 0, numpixels = 0, curpixel = 0; deltax = ABS(x2 - x1); /* The difference between the x's */ deltay = ABS(y2 - y1); /* The difference between the y's */ x = x1; /* Start x off at the first pixel */ y = y1; /* Start y off at the first pixel */ if (x2 >= x1) /* The x-values are increasing */ { xinc1 = 1; xinc2 = 1; ...} else /* The x-values are decreasing */ { xinc1 = -1; xinc2 = -1; }else { ... } if (y2 >= y1) /* The y-values are increasing */ { yinc1 = 1; yinc2 = 1; ...} else /* The y-values are decreasing */ { yinc1 = -1; yinc2 = -1; }else { ... } if (deltax >= deltay) /* There is at least one x-value for every y-value */ { xinc1 = 0; /* Don't change the x when numerator >= denominator */ yinc2 = 0; /* Don't change the y for every iteration */ den = deltax; num = deltax / 2; numadd = deltay; numpixels = deltax; /* There are more x-values than y-values */ ...} else /* There is at least one y-value for every x-value */ { xinc2 = 0; /* Don't change the x for every iteration */ yinc1 = 0; /* Don't change the y when numerator >= denominator */ den = deltay; num = deltay / 2; numadd = deltax; numpixels = deltay; /* There are more y-values than x-values */ }else { ... } for (curpixel = 0; curpixel <= numpixels; curpixel++) { BSP_LCD_DrawLine(x, y, x3, y3); num += numadd; /* Increase the numerator by the top of the fraction */ if (num >= den) /* Check if numerator >= denominator */ { num -= den; /* Calculate the new numerator value */ x += xinc1; /* Change the x as appropriate */ y += yinc1; /* Change the y as appropriate */ ...} x += xinc2; /* Change the x as appropriate */ y += yinc2; /* Change the y as appropriate */ }for (curpixel = 0; curpixel <= numpixels; curpixel++) { ... } }{ ... } /** * @brief Fills a buffer. * @param LayerIndex: Layer index * @param pDst: Pointer to destination buffer * @param xSize: Buffer width * @param ySize: Buffer height * @param OffLine: Offset * @param ColorIndex: Color index *//* ... */ static void LL_FillBuffer(uint32_t LayerIndex, void *pDst, uint32_t xSize, uint32_t ySize, uint32_t OffLine, uint32_t ColorIndex) { /* Register to memory mode with ARGB8888 as color Mode */ hdma2d_eval.Init.Mode = DMA2D_R2M; hdma2d_eval.Init.ColorMode = DMA2D_ARGB8888; hdma2d_eval.Init.OutputOffset = OffLine; hdma2d_eval.Instance = DMA2D; /* DMA2D Initialization */ if(HAL_DMA2D_Init(&hdma2d_eval) == HAL_OK) { if(HAL_DMA2D_ConfigLayer(&hdma2d_eval, LayerIndex) == HAL_OK) { if (HAL_DMA2D_Start(&hdma2d_eval, ColorIndex, (uint32_t)pDst, xSize, ySize) == HAL_OK) { /* Polling For DMA transfer */ HAL_DMA2D_PollForTransfer(&hdma2d_eval, 10); }if (HAL_DMA2D_Start(&hdma2d_eval, ColorIndex, (uint32_t)pDst, xSize, ySize) == HAL_OK) { ... } }if (HAL_DMA2D_ConfigLayer(&hdma2d_eval, LayerIndex) == HAL_OK) { ... } }if (HAL_DMA2D_Init(&hdma2d_eval) == HAL_OK) { ... } }{ ... } /** * @brief Converts a line to an ARGB8888 pixel format. * @param pSrc: Pointer to source buffer * @param pDst: Output color * @param xSize: Buffer width * @param ColorMode: Input color mode *//* ... */ static void LL_ConvertLineToARGB8888(void *pSrc, void *pDst, uint32_t xSize, uint32_t ColorMode) { /* Configure the DMA2D Mode, Color Mode and output offset */ hdma2d_eval.Init.Mode = DMA2D_M2M_PFC; hdma2d_eval.Init.ColorMode = DMA2D_ARGB8888; hdma2d_eval.Init.OutputOffset = 0; /* Foreground Configuration */ hdma2d_eval.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA; hdma2d_eval.LayerCfg[1].InputAlpha = 0xFF; hdma2d_eval.LayerCfg[1].InputColorMode = ColorMode; hdma2d_eval.LayerCfg[1].InputOffset = 0; hdma2d_eval.Instance = DMA2D; /* DMA2D Initialization */ if(HAL_DMA2D_Init(&hdma2d_eval) == HAL_OK) { if(HAL_DMA2D_ConfigLayer(&hdma2d_eval, 1) == HAL_OK) { if (HAL_DMA2D_Start(&hdma2d_eval, (uint32_t)pSrc, (uint32_t)pDst, xSize, 1) == HAL_OK) { /* Polling For DMA transfer */ HAL_DMA2D_PollForTransfer(&hdma2d_eval, 10); }if (HAL_DMA2D_Start(&hdma2d_eval, (uint32_t)pSrc, (uint32_t)pDst, xSize, 1) == HAL_OK) { ... } }if (HAL_DMA2D_ConfigLayer(&hdma2d_eval, 1) == HAL_OK) { ... } }if (HAL_DMA2D_Init(&hdma2d_eval) == HAL_OK) { ... } }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */