//-----------------------------------------------------------------------------
// FUNCTION: D4DLCDHW_Init_DragonFireLCDC
// SCOPE: Low Level Driver API function
// DESCRIPTION: The function is used for initialization of this low level driver
//
// PARAMETERS: none
//
// RETURNS: result: 1 - Success
// 0 - Failed
//-----------------------------------------------------------------------------
static unsigned char D4DLCDHW_Init_DragonFireLCDC(void)
{
Configure_VEEEN_ON();
Configure_LCD_Ports();
#if D4DLCDHWFB_MIRROWED == 1
MCF_LCDC_LCD_SSAR = D4DLCDHWFB_START_ADDRESS + D4DLCDHWFB_X_MAX * D4DLCDHWFB_Y_MAX * 2;
#else
MCF_LCDC_LCD_SSAR = D4DLCDHWFB_START_ADDRESS;
#endif
MCF_LCDC_LCD_SR = (D4DLCDHWFB_X_MAX / 16) << 20 | (D4DLCDHWFB_Y_MAX);
MCF_LCDC_LCD_VPW = (D4DLCDHWFB_X_MAX / 2);
MCF_LCDC_LCD_DCR = ( 0 | MCF_LCDC_LCD_DCR_HM(4) | MCF_LCDC_LCD_DCR_TM(8) );
Configure_Bursting();
LCDC_Init(TFT_PANEL, D4DLCDHWFB_PANEL_TYPE, BPP16, ACD_DIV_0, D4DLCDHWFB_PANEL_CLKDIV);
LCDC_Enable();
//raise LCDC priority
//(*(vuint32*)(0xFC004100)) = 0x76000021;
return 1;
}
/* 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;
}