int gd32_hw_lcd_init(void)
{
_rt_framebuffer = rt_malloc_align(sizeof(rt_uint16_t) * RT_HW_LCD_WIDTH * RT_HW_LCD_HEIGHT, 32);
if (_rt_framebuffer == RT_NULL)
return -1; /* no memory yet */
lcd_config();
tli_config();
tli_layer_enable(LAYER0);
tli_reload_config(TLI_FRAME_BLANK_RELOAD_EN);
tli_enable();
_lcd_info.bits_per_pixel = LCD_BITS_PER_PIXEL;
_lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
_lcd_info.framebuffer = (void *)_rt_framebuffer;
_lcd_info.width = RT_HW_LCD_WIDTH;
_lcd_info.height = RT_HW_LCD_HEIGHT;
lcd.type = RT_Device_Class_Graphic;
lcd.init = NULL;
lcd.open = NULL;
lcd.close = NULL;
lcd.read = NULL;
lcd.write = NULL;
lcd.control = rt_lcd_control;
lcd.user_data = (void *)&_lcd_info;
/* register lcd device to RT-Thread */
rt_device_register(&lcd, "lcd", RT_DEVICE_FLAG_RDWR);
return 0;
}
int stm32_hw_lcd_init(void)
{
_rt_framebuffer = rt_malloc_align(sizeof(rt_uint16_t) * RT_HW_LCD_WIDTH * RT_HW_LCD_HEIGHT, 32);
if (_rt_framebuffer == RT_NULL)
return -1; /* no memory yet */
LTDC_CLK_Config();
MX_LTDC_Init();
lcd_backlight_init();
MX_DMA2D_Init();
_lcd_info.bits_per_pixel = LCD_BITS_PER_PIXEL;
_lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565; // RTGRAPHIC_PIXEL_FORMAT_ARGB888
_lcd_info.framebuffer = (void *)_rt_framebuffer;
_lcd_info.width = RT_HW_LCD_WIDTH;
_lcd_info.height = RT_HW_LCD_HEIGHT;
/* init device structure */
lcd.type = RT_Device_Class_Graphic;
lcd.init = rt_lcd_init;
lcd.open = rt_lcd_open;
lcd.close = rt_lcd_close;
lcd.read = NULL;
lcd.write = NULL;
lcd.control = rt_lcd_control;
lcd.user_data = (void *)&_lcd_info;
/* register lcd device to RT-Thread */
rt_device_register(&lcd, "lcd", RT_DEVICE_FLAG_RDWR);
return 0;
}
/* LTDC init function */
static void MX_LTDC_Init(void)
{
LTDC_LayerCfgTypeDef pLayerCfg;
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
hltdc.Init.HorizontalSync = LCD_800_480_HSYNC;
hltdc.Init.VerticalSync = LCD_800_480_VSYNC;
hltdc.Init.AccumulatedHBP = LCD_800_480_HSYNC + LCD_800_480_HBP;
hltdc.Init.AccumulatedVBP = LCD_800_480_VSYNC + LCD_800_480_VBP;
hltdc.Init.AccumulatedActiveW = RT_HW_LCD_WIDTH + LCD_800_480_HSYNC + LCD_800_480_HBP;
hltdc.Init.AccumulatedActiveH = RT_HW_LCD_HEIGHT + LCD_800_480_VSYNC + LCD_800_480_VBP;
hltdc.Init.TotalWidth = RT_HW_LCD_WIDTH + LCD_800_480_HSYNC + LCD_800_480_HBP + LCD_800_480_HFP;
hltdc.Init.TotalHeigh = RT_HW_LCD_HEIGHT + LCD_800_480_VSYNC + LCD_800_480_VBP + LCD_800_480_VFP;
hltdc.LayerCfg->ImageHeight = RT_HW_LCD_HEIGHT;
hltdc.LayerCfg->ImageWidth = RT_HW_LCD_WIDTH;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
RT_ASSERT(RT_NULL);
}
lcd_framebuffer = rt_malloc_align(sizeof(rt_uint16_t) * RT_HW_LCD_WIDTH * RT_HW_LCD_HEIGHT, 32);
RT_ASSERT(lcd_framebuffer != RT_NULL);
rt_memset(lcd_framebuffer, 0, sizeof(rt_uint16_t) * RT_HW_LCD_WIDTH * RT_HW_LCD_HEIGHT);
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = RT_HW_LCD_WIDTH;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = RT_HW_LCD_HEIGHT;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 0xFF;
pLayerCfg.Alpha0 = 0xFF;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR1_CA;
pLayerCfg.FBStartAdress = (uint32_t)lcd_framebuffer;
pLayerCfg.ImageWidth = RT_HW_LCD_WIDTH;
pLayerCfg.ImageHeight = RT_HW_LCD_HEIGHT;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
RT_ASSERT(RT_NULL);
}
}
void rt_hw_lcd_init(void)
{
_rt_framebuffer = rt_malloc_align(sizeof(rt_uint16_t) * RT_HW_LCD_HEIGHT * RT_HW_LCD_WIDTH, 32);
if (_rt_framebuffer == RT_NULL) return; /* no memory yet */
_lcd_info.bits_per_pixel = LCD_BITS_PER_PIXEL;
_lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565; // RTGRAPHIC_PIXEL_FORMAT_ARGB888
_lcd_info.framebuffer = (void *)_rt_framebuffer;
_lcd_info.width = RT_HW_LCD_WIDTH;
_lcd_info.height = RT_HW_LCD_HEIGHT;
/* init device structure */
lcd.type = RT_Device_Class_Graphic;
lcd.init = rt_lcd_init;
lcd.open = RT_NULL;
lcd.close = RT_NULL;
lcd.control = rt_lcd_control;
lcd.user_data = (void *)&_lcd_info;
/* register lcd device to RT-Thread */
rt_device_register(&lcd, "lcd", RT_DEVICE_FLAG_RDWR);
rt_lcd_init(&lcd);
}
/* RT-Thread Device Interface */
static rt_err_t rt_lcd_init(rt_device_t dev)
{
/* Route Main clock to LCD. */
CLOCK_AttachClk(kMCLK_to_LCD_CLK);
CLOCK_SetClkDiv(kCLOCK_DivLcdClk, 1, true);
/*LCD管脚配置*/
lcd_gpio_init();
/* Set the back light PWM. */
{
sctimer_config_t config;
sctimer_pwm_signal_param_t pwmParam;
uint32_t event;
CLOCK_AttachClk(kMCLK_to_SCT_CLK);
CLOCK_SetClkDiv(kCLOCK_DivSctClk, 2, true);
SCTIMER_GetDefaultConfig(&config);
SCTIMER_Init(SCT0, &config);
pwmParam.output = kSCTIMER_Out_5;
pwmParam.level = kSCTIMER_HighTrue;
pwmParam.dutyCyclePercent = 5;
SCTIMER_SetupPwm(SCT0, &pwmParam, kSCTIMER_CenterAlignedPwm, 1000U, CLOCK_GetFreq(kCLOCK_Sct), &event);
}
lcd_framebuffer = rt_malloc_align(sizeof(rt_uint16_t) * RT_HW_LCD_HEIGHT * RT_HW_LCD_WIDTH, 32);
rt_memset(lcd_framebuffer, 0, sizeof(rt_uint16_t) * RT_HW_LCD_HEIGHT * RT_HW_LCD_WIDTH);
{
/* Initialize the display. */
lcdc_config_t lcdConfig;
LCDC_GetDefaultConfig(&lcdConfig);
lcdConfig.panelClock_Hz = LCD_PANEL_CLK;
lcdConfig.ppl = LCD_PPL;
lcdConfig.hsw = LCD_HSW;
lcdConfig.hfp = LCD_HFP;
lcdConfig.hbp = LCD_HBP;
lcdConfig.lpp = LCD_LPP;
lcdConfig.vsw = LCD_VSW;
lcdConfig.vfp = LCD_VFP;
lcdConfig.vbp = LCD_VBP;
lcdConfig.polarityFlags = LCD_POL_FLAGS;
lcdConfig.upperPanelAddr = (uint32_t)lcd_framebuffer;//VRAM_ADDR;
lcdConfig.bpp = kLCDC_16BPP565;
lcdConfig.display = kLCDC_DisplayTFT;
lcdConfig.swapRedBlue = true;
LCDC_Init(LCD, &lcdConfig, CLOCK_GetFreq(kCLOCK_LCD));
/* Trigger interrupt at start of every vertical back porch. */
LCDC_SetVerticalInterruptMode(LCD, kLCDC_StartOfBackPorch);
LCDC_EnableInterrupts(LCD, kLCDC_VerticalCompareInterrupt);
NVIC_EnableIRQ(LCD_IRQn);
LCDC_Start(LCD);
LCDC_PowerUp(LCD);
}
return RT_EOK;
}
