/**
* @brief Initializes the LCD.
* @retval LCD state
*/
uint8_t BSP_LCD_Init(void)
{
/* Select the used LCD */
/* The RK043FN48H LCD 480x272 is selected */
/* Timing Configuration */
hLtdcHandler.Init.HorizontalSync = (RK043FN48H_HSYNC - 1);
hLtdcHandler.Init.VerticalSync = (RK043FN48H_VSYNC - 1);
hLtdcHandler.Init.AccumulatedHBP = (RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
hLtdcHandler.Init.AccumulatedVBP = (RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
hLtdcHandler.Init.AccumulatedActiveH = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
hLtdcHandler.Init.AccumulatedActiveW = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
hLtdcHandler.Init.TotalHeigh = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP + RK043FN48H_VFP - 1);
hLtdcHandler.Init.TotalWidth = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP + RK043FN48H_HFP - 1);
/* LCD clock configuration */
BSP_LCD_ClockConfig(&hLtdcHandler, NULL);
/* Initialize the LCD pixel width and pixel height */
hLtdcHandler.LayerCfg->ImageWidth = RK043FN48H_WIDTH;
hLtdcHandler.LayerCfg->ImageHeight = RK043FN48H_HEIGHT;
/* Background value */
hLtdcHandler.Init.Backcolor.Blue = 0;
hLtdcHandler.Init.Backcolor.Green = 0;
hLtdcHandler.Init.Backcolor.Red = 0;
/* Polarity */
hLtdcHandler.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hLtdcHandler.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hLtdcHandler.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hLtdcHandler.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hLtdcHandler.Instance = LTDC;
if(HAL_LTDC_GetState(&hLtdcHandler) == HAL_LTDC_STATE_RESET)
{
/* Initialize the LCD Msp: this __weak function can be rewritten by the application */
BSP_LCD_MspInit(&hLtdcHandler, NULL);
}
HAL_LTDC_Init(&hLtdcHandler);
/* Assert display enable LCD_DISP pin */
HAL_GPIO_WritePin(LCD_DISP_GPIO_PORT, LCD_DISP_PIN, GPIO_PIN_SET);
/* Assert backlight LCD_BL_CTRL pin */
HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_PORT, LCD_BL_CTRL_PIN, GPIO_PIN_SET);
#if !defined(DATA_IN_ExtSDRAM)
/* Initialize the SDRAM */
BSP_SDRAM_Init();
#endif
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
return LCD_OK;
}
/**
* @brief Initializes the LCD.
* @retval LCD state
*/
uint8_t BSP_LCD_Init(void)
{
/* Timing Configuration */
ltdc_handle.Init.HorizontalSync = (RK043FN48H_HSYNC - 1);
ltdc_handle.Init.VerticalSync = (RK043FN48H_VSYNC - 1);
ltdc_handle.Init.AccumulatedHBP = (RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
ltdc_handle.Init.AccumulatedVBP = (RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
ltdc_handle.Init.AccumulatedActiveH = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
ltdc_handle.Init.AccumulatedActiveW = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
ltdc_handle.Init.TotalHeigh = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP + RK043FN48H_VFP - 1);
ltdc_handle.Init.TotalWidth = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP + RK043FN48H_HFP - 1);
/* LCD clock configuration */
BSP_LCD_ClockConfig(<dc_handle, NULL);
/* Initialize the LCD pixel width and pixel height */
ltdc_handle.LayerCfg->ImageWidth = RK043FN48H_WIDTH;
ltdc_handle.LayerCfg->ImageHeight = RK043FN48H_HEIGHT;
/* Background value */
ltdc_handle.Init.Backcolor.Blue = 0;
ltdc_handle.Init.Backcolor.Green = 0;
ltdc_handle.Init.Backcolor.Red = 0;
/* Polarity */
ltdc_handle.Init.HSPolarity = LTDC_HSPOLARITY_AL;
ltdc_handle.Init.VSPolarity = LTDC_VSPOLARITY_AL;
ltdc_handle.Init.DEPolarity = LTDC_DEPOLARITY_AL;
ltdc_handle.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
ltdc_handle.Instance = LTDC;
if (HAL_LTDC_GetState(<dc_handle) == HAL_LTDC_STATE_RESET) {
BSP_LCD_MspInit(<dc_handle, NULL);
}
HAL_LTDC_Init(<dc_handle);
/* allocate the framebuffer */
size_t fb_size_pages = PAGE_ALIGN(RK043FN48H_WIDTH * RK043FN48H_HEIGHT * 4) / PAGE_SIZE;
void *fb_address = novm_alloc_pages(fb_size_pages, NOVM_ARENA_SECONDARY);
if (!fb_address)
panic("failed to allocate framebuffer for LCD\n");
BSP_LCD_LayerDefaultInit(0, (uint32_t)fb_address);
BSP_LCD_SelectLayer(0);
/* clear framebuffer */
memset((void *)ltdc_handle.LayerCfg[active_layer].FBStartAdress, 0,
BSP_LCD_GetXSize() * BSP_LCD_GetYSize() * BSP_LCD_PixelSize());
/* turn the display on */
BSP_LCD_DisplayOn();
return LCD_OK;
}
/**
* @brief Initializes the LCD.
* @param PclkConfig : pixel clock profile
* @retval LCD state
*/
uint8_t BSP_LCD_InitEx(uint32_t PclkConfig)
{
PCLK_profile = PclkConfig;
/* Select the used LCD */
/* The AMPIRE 480x272 does not contain an ID register then we check the availability
of AMPIRE 480x640 LCD using device ID of the STMPE811 mounted on MB1046 daughter board */
if(stmpe811_ts_drv.ReadID(TS_I2C_ADDRESS) == STMPE811_ID)
{
/* The AMPIRE LCD 480x272 is selected */
/* Timing Configuration */
hltdc_eval.Init.HorizontalSync = (AMPIRE480272_HSYNC - 1);
hltdc_eval.Init.VerticalSync = (AMPIRE480272_VSYNC - 1);
hltdc_eval.Init.AccumulatedHBP = (AMPIRE480272_HSYNC + AMPIRE480272_HBP - 1);
hltdc_eval.Init.AccumulatedVBP = (AMPIRE480272_VSYNC + AMPIRE480272_VBP - 1);
hltdc_eval.Init.AccumulatedActiveH = (AMPIRE480272_HEIGHT + AMPIRE480272_VSYNC + AMPIRE480272_VBP - 1);
hltdc_eval.Init.AccumulatedActiveW = (AMPIRE480272_WIDTH + AMPIRE480272_HSYNC + AMPIRE480272_HBP - 1);
hltdc_eval.Init.TotalHeigh = (AMPIRE480272_HEIGHT + AMPIRE480272_VSYNC + AMPIRE480272_VBP + AMPIRE480272_VFP - 1);
hltdc_eval.Init.TotalWidth = (AMPIRE480272_WIDTH + AMPIRE480272_HSYNC + AMPIRE480272_HBP + AMPIRE480272_HFP - 1);
/* Initialize the LCD pixel width and pixel height */
hltdc_eval.LayerCfg->ImageWidth = AMPIRE480272_WIDTH;
hltdc_eval.LayerCfg->ImageHeight = AMPIRE480272_HEIGHT;
}
else
{
/* The LCD AMPIRE 640x480 is selected */
/* Timing configuration */
hltdc_eval.Init.HorizontalSync = (AMPIRE640480_HSYNC - 1);
hltdc_eval.Init.VerticalSync = (AMPIRE640480_VSYNC - 1);
hltdc_eval.Init.AccumulatedHBP = (AMPIRE640480_HSYNC + AMPIRE640480_HBP - 1);
hltdc_eval.Init.AccumulatedVBP = (AMPIRE640480_VSYNC + AMPIRE640480_VBP - 1);
hltdc_eval.Init.AccumulatedActiveH = (AMPIRE640480_HEIGHT + AMPIRE640480_VSYNC + AMPIRE640480_VBP - 1);
hltdc_eval.Init.AccumulatedActiveW = (AMPIRE640480_WIDTH + AMPIRE640480_HSYNC + AMPIRE640480_HBP - 1);
hltdc_eval.Init.TotalHeigh = (AMPIRE640480_HEIGHT + AMPIRE640480_VSYNC + AMPIRE640480_VBP + AMPIRE640480_VFP - 1);
hltdc_eval.Init.TotalWidth = (AMPIRE640480_WIDTH + AMPIRE640480_HSYNC + AMPIRE640480_HBP + AMPIRE640480_HFP - 1);
/* Initialize the LCD pixel width and pixel height */
hltdc_eval.LayerCfg->ImageWidth = AMPIRE640480_WIDTH;
hltdc_eval.LayerCfg->ImageHeight = AMPIRE640480_HEIGHT;
}
/* Background value */
hltdc_eval.Init.Backcolor.Blue = 0;
hltdc_eval.Init.Backcolor.Green = 0;
hltdc_eval.Init.Backcolor.Red = 0;
/* Polarity */
hltdc_eval.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc_eval.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc_eval.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc_eval.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc_eval.Instance = LTDC;
/* LCD clock configuration */
BSP_LCD_ClockConfig(&hltdc_eval, &PCLK_profile);
MspInit();
HAL_LTDC_Init(&hltdc_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);
return LCD_OK;
}
