Beispiel #1
0
//set lcdc according the screen info
static int rk3188_load_screen(struct rk_lcdc_device_driver *dev_drv, bool initscreen)
{
	int ret = -EINVAL;
	int fps;
	u16 face = 0;
	struct rk3188_lcdc_device *lcdc_dev = 
				container_of(dev_drv,struct rk3188_lcdc_device,driver);
	rk_screen *screen = dev_drv->cur_screen;
	u16 right_margin = screen->right_margin;
	u16 left_margin = screen->left_margin;
	u16 lower_margin = screen->lower_margin;
	u16 upper_margin = screen->upper_margin;
	u16 x_res = screen->x_res;
	u16 y_res = screen->y_res;

	spin_lock(&lcdc_dev->reg_lock);
	if(likely(lcdc_dev->clk_on))
	{
		if(screen->type==SCREEN_MCU)
		{
	    		printk("MUC¡¡screen not supported now!\n");
			return -EINVAL;
		}

		switch (screen->face)
		{
		case OUT_P565:
			face = OUT_P565;  //dither down to rgb565
			lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE |
				 m_DITHER_DOWN_SEL,v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0) |
				 v_DITHER_DOWN_SEL(1));
			break;
		case OUT_P666:
			face = OUT_P666; //dither down to rgb666
			lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE |
				m_DITHER_DOWN_SEL, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1) |
				v_DITHER_DOWN_SEL(1));
			break;
		case OUT_D888_P565:
			face = OUT_P888;
			lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE |
				m_DITHER_DOWN_SEL, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0) |
				v_DITHER_DOWN_SEL(1));
			break;
		case OUT_D888_P666:
			face = OUT_P888;
			lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE |
				m_DITHER_DOWN_SEL, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1) |
				v_DITHER_DOWN_SEL(1));
			break;
		case OUT_P888:
			face = OUT_P888;
			break;
		default:
			printk("unsupported display output interface!\n");
			break;
		}

		//use default overlay,set vsyn hsync den dclk polarity
		lcdc_msk_reg(lcdc_dev, DSP_CTRL0,m_DSP_OUT_FORMAT | m_HSYNC_POL | m_VSYNC_POL |
	     		     m_DEN_POL |m_DCLK_POL,v_DSP_OUT_FORMAT(face) | v_HSYNC_POL(screen->pin_hsync) | 
	     		     v_VSYNC_POL(screen->pin_vsync) | v_DEN_POL(screen->pin_den) | v_DCLK_POL(screen->pin_dclk));

		
		//set background color to black,set swap according to the screen panel,disable blank mode
		lcdc_msk_reg(lcdc_dev, DSP_CTRL1, m_BG_COLOR| m_DSP_BG_SWAP | m_DSP_RB_SWAP | 
			     m_DSP_RG_SWAP | m_DSP_DELTA_SWAP | m_DSP_DUMMY_SWAP | m_BLANK_EN,
			     v_BG_COLOR(0x000000) | v_DSP_BG_SWAP(screen->swap_gb) | 
			     v_DSP_RB_SWAP(screen->swap_rb) | v_DSP_RG_SWAP(screen->swap_rg) | 
			     v_DSP_DELTA_SWAP(screen->swap_delta) | v_DSP_DUMMY_SWAP(screen->swap_dumy) |
			     v_BLANK_EN(0) | v_BLACK_EN(0));
		lcdc_writel(lcdc_dev,DSP_HTOTAL_HS_END,v_HSYNC(screen->hsync_len) |
			    v_HORPRD(screen->hsync_len + left_margin + x_res + right_margin));
		lcdc_writel(lcdc_dev,DSP_HACT_ST_END,v_HAEP(screen->hsync_len + left_margin + x_res) |
			    v_HASP(screen->hsync_len + left_margin));

		lcdc_writel(lcdc_dev,DSP_VTOTAL_VS_END, v_VSYNC(screen->vsync_len) |
			    v_VERPRD(screen->vsync_len + upper_margin + y_res + lower_margin));
		lcdc_writel(lcdc_dev,DSP_VACT_ST_END,v_VAEP(screen->vsync_len + upper_margin+y_res)|
			    v_VASP(screen->vsync_len + screen->upper_margin));
	}
 	spin_unlock(&lcdc_dev->reg_lock);

	ret = clk_set_rate(lcdc_dev->dclk, screen->pixclock);
	if(ret)
	{
        	dev_err(dev_drv->dev,"set lcdc%d dclk failed\n",lcdc_dev->id);
	}
    	lcdc_dev->driver.pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
	
	fps = rk_fb_calc_fps(screen,lcdc_dev->pixclock);
	screen->ft = 1000/fps;
    	printk("%s: dclk:%lu>>fps:%d ",lcdc_dev->driver.name,clk_get_rate(lcdc_dev->dclk),fps);

    	if(screen->init)
    	{
    		screen->init();
    	}

	if(screen->sscreen_set)
	{
		screen->sscreen_set(screen,!initscreen);
	}
	
	dev_info(dev_drv->dev,"%s for lcdc%d ok!\n",__func__,lcdc_dev->id);
	return 0;
}
Beispiel #2
0
static int rk30_load_screen(struct rk_lcdc_device_driver *dev_drv, bool initscreen)
{
	int ret = -EINVAL;
	struct rk30_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk30_lcdc_device,driver);
	rk_screen *screen = dev_drv->cur_screen;
	u64 ft;
	int fps;
	u16 face;
	u16 mcu_total, mcu_rwstart, mcu_csstart, mcu_rwend, mcu_csend;
	u16 right_margin = screen->right_margin;
	u16 lower_margin = screen->lower_margin;
	u16 x_res = screen->x_res, y_res = screen->y_res;

	
	// set the rgb or mcu
	spin_lock(&lcdc_dev->reg_lock);
	if(likely(lcdc_dev->clk_on))
	{
		if(screen->type==SCREEN_MCU)
		{
	    		lcdc_msk_reg(lcdc_dev, MCU_CTRL, m_MCU_OUTPUT_SELECT,v_MCU_OUTPUT_SELECT(1));
			// set out format and mcu timing
	   		mcu_total  = (screen->mcu_wrperiod*150*1000)/1000000;
	    		if(mcu_total>31)    
				mcu_total = 31;
	   		if(mcu_total<3)    
				mcu_total = 3;
	    		mcu_rwstart = (mcu_total+1)/4 - 1;
	    		mcu_rwend = ((mcu_total+1)*3)/4 - 1;
	    		mcu_csstart = (mcu_rwstart>2) ? (mcu_rwstart-3) : (0);
	    		mcu_csend = (mcu_rwend>15) ? (mcu_rwend-1) : (mcu_rwend);

	    		//DBG(1,">> mcu_total=%d, mcu_rwstart=%d, mcu_csstart=%d, mcu_rwend=%d, mcu_csend=%d \n",
	        	//	mcu_total, mcu_rwstart, mcu_csstart, mcu_rwend, mcu_csend);

			// set horizontal & vertical out timing
		
		    	right_margin = x_res/6; 
			screen->pixclock = 150000000; //mcu fix to 150 MHz
			lcdc_msk_reg(lcdc_dev, MCU_CTRL,m_MCU_CS_ST | m_MCU_CS_END| m_MCU_RW_ST | m_MCU_RW_END |
	             		m_MCU_WRITE_PERIOD | m_MCU_HOLDMODE_SELECT | m_MCU_HOLDMODE_FRAME_ST,
	            		v_MCU_CS_ST(mcu_csstart) | v_MCU_CS_END(mcu_csend) | v_MCU_RW_ST(mcu_rwstart) |
	            		v_MCU_RW_END(mcu_rwend) |  v_MCU_WRITE_PERIOD(mcu_total) |
	            		v_MCU_HOLDMODE_SELECT((SCREEN_MCU==screen->type)?(1):(0)) | v_MCU_HOLDMODE_FRAME_ST(0));
	
		}

		switch (screen->face)
		{
	        	case OUT_P565:
	            		face = OUT_P565;
	            		lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0));
	            		break;
	        	case OUT_P666:
	            		face = OUT_P666;
	            		lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1));
	            		break;
	        	case OUT_D888_P565:
	            		face = OUT_P888;
	            		lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0));
	            		break;
	        	case OUT_D888_P666:
	            		face = OUT_P888;
	            		lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1));
	            		break;
	        	case OUT_P888:
	            		face = OUT_P888;
	            		lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_UP_EN, v_DITHER_UP_EN(1));
	            		lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(0) | v_DITHER_DOWN_MODE(0));
	            		break;
	        	default:
	            		lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_UP_EN, v_DITHER_UP_EN(0));
	            		lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(0) | v_DITHER_DOWN_MODE(0));
	            		face = screen->face;
	            		break;
		}

		//use default overlay,set vsyn hsync den dclk polarity
		lcdc_msk_reg(lcdc_dev, DSP_CTRL0,m_DISPLAY_FORMAT | m_HSYNC_POLARITY | m_VSYNC_POLARITY |
	     		m_DEN_POLARITY |m_DCLK_POLARITY,v_DISPLAY_FORMAT(face) | 
	     		v_HSYNC_POLARITY(screen->pin_hsync) | v_VSYNC_POLARITY(screen->pin_vsync) |
	        	v_DEN_POLARITY(screen->pin_den) | v_DCLK_POLARITY(screen->pin_dclk));

		//set background color to black,set swap according to the screen panel,disable blank mode
		lcdc_msk_reg(lcdc_dev, DSP_CTRL1, m_BG_COLOR | m_OUTPUT_RB_SWAP | m_OUTPUT_RG_SWAP | m_DELTA_SWAP | 
		 	m_DUMMY_SWAP | m_BLANK_MODE,v_BG_COLOR(0x000000) | v_OUTPUT_RB_SWAP(screen->swap_rb) | 
		 	v_OUTPUT_RG_SWAP(screen->swap_rg) | v_DELTA_SWAP(screen->swap_delta) | v_DUMMY_SWAP(screen->swap_dumy) |
		 	v_BLACK_MODE(0));

		
		lcdc_writel(lcdc_dev, DSP_HTOTAL_HS_END,v_HSYNC(screen->hsync_len) |
	             v_HORPRD(screen->hsync_len + screen->left_margin + x_res + right_margin));
		lcdc_writel(lcdc_dev, DSP_HACT_ST_END, v_HAEP(screen->hsync_len + screen->left_margin + x_res) |
	             v_HASP(screen->hsync_len + screen->left_margin));

		lcdc_writel(lcdc_dev, DSP_VTOTAL_VS_END, v_VSYNC(screen->vsync_len) |
	              v_VERPRD(screen->vsync_len + screen->upper_margin + y_res + lower_margin));
		lcdc_writel(lcdc_dev, DSP_VACT_ST_END,  v_VAEP(screen->vsync_len + screen->upper_margin+y_res)|
	              v_VASP(screen->vsync_len + screen->upper_margin));
		// let above to take effect
		lcdc_cfg_done(lcdc_dev);
	}
 	spin_unlock(&lcdc_dev->reg_lock);

	ret = clk_set_rate(lcdc_dev->dclk, screen->pixclock);
	if(ret)
	{
        	printk(KERN_ERR ">>>>>> set lcdc%d dclk failed\n",lcdc_dev->id);
	}
    	lcdc_dev->driver.pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
	
	ft = (u64)(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
		(screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len)*
		(dev_drv->pixclock);       // one frame time ,(pico seconds)
	fps = div64_u64(1000000000000llu,ft);
	screen->ft = 1000/fps;
    	printk("%s: dclk:%lu>>fps:%d ",lcdc_dev->driver.name,clk_get_rate(lcdc_dev->dclk),fps);

    	if(screen->init)
    	{
    		screen->init();
    	}
	
	printk("%s for lcdc%d ok!\n",__func__,lcdc_dev->id);
	return 0;
}