From: yxj <yxj@rock-chips.com>
Date: Sat, 11 Aug 2012 02:42:50 +0000 (+0800)
Subject: rkfb:add display lut set/read interface
X-Git-Tag: firefly_0821_release~8811
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=05f27ee4512796c790c4ac96e304f083d7608c02;p=firefly-linux-kernel-4.4.55.git

rkfb:add display lut set/read interface
---

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 66dd7845a16a..dfea2ef440f7 100644
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -872,8 +872,14 @@ static int init_lcdc_device_driver(struct rk_lcdc_device_driver *dev_drv,
 	dev_drv->get_disp_info  = def_drv->get_disp_info;
 	dev_drv->ovl_mgr	= def_drv->ovl_mgr;
 	dev_drv->fps_mgr	= def_drv->fps_mgr;
-	dev_drv->fb_get_layer   = def_drv->fb_get_layer;
-	dev_drv->fb_layer_remap = def_drv->fb_layer_remap;
+	if(def_drv->fb_get_layer)
+		dev_drv->fb_get_layer   = def_drv->fb_get_layer;
+	if(def_drv->fb_layer_remap)
+		dev_drv->fb_layer_remap = def_drv->fb_layer_remap;
+	if(def_drv->set_dsp_lut)
+		dev_drv->set_dsp_lut    = def_drv->set_dsp_lut;
+	if(def_drv->read_dsp_lut)
+		dev_drv->read_dsp_lut   = def_drv->read_dsp_lut;
 	init_layer_par(dev_drv);
 	init_completion(&dev_drv->frame_done);
 	spin_lock_init(&dev_drv->cpl_lock);
diff --git a/drivers/video/rockchip/rkfb_sysfs.c b/drivers/video/rockchip/rkfb_sysfs.c
index 92309a3ef7e7..b0588c6e7b5e 100644
--- a/drivers/video/rockchip/rkfb_sysfs.c
+++ b/drivers/video/rockchip/rkfb_sysfs.c
@@ -237,6 +237,50 @@ static ssize_t set_fb_win_map(struct device *dev,struct device_attribute *attr,
 	
 }
 
+static ssize_t show_dsp_lut(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	
+}
+static ssize_t set_dsp_lut(struct device *dev,struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	int dsp_lut[256];
+	char *start = buf;
+	int i=256,temp;
+	int space_max = 10;
+
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct rk_lcdc_device_driver * dev_drv = 
+		(struct rk_lcdc_device_driver * )fbi->par;
+	
+	for(i=0;i<256;i++)
+	{
+		temp = i;
+		dsp_lut[i] = temp + (temp<<8) + (temp<<16);  //init by default value
+	}
+	printk("%s\n",start);
+	for(i=0;i<256;i++)
+	{
+		temp = simple_strtoul(start,NULL,10);
+		do
+		{
+			start++;
+			space_max--;
+		}while ((*start != ' ')&&space_max);
+		
+		if(!space_max)
+			break;
+		else
+			start++;
+	}
+	
+	dev_drv->set_dsp_lut(dev_drv,dsp_lut);
+
+	return count;
+	
+}
+
 static struct device_attribute rkfb_attrs[] = {
 	__ATTR(phys_addr, S_IRUGO, show_phys, NULL),
 	__ATTR(virt_addr, S_IRUGO, show_virt, NULL),
@@ -246,6 +290,7 @@ static struct device_attribute rkfb_attrs[] = {
 	__ATTR(overlay, S_IRUGO | S_IWUSR, show_overlay, set_overlay),
 	__ATTR(fps, S_IRUGO | S_IWUSR, show_fps, set_fps),
 	__ATTR(map, S_IRUGO | S_IWUSR, show_fb_win_map, set_fb_win_map),
+	__ATTR(dsp_lut, S_IRUGO | S_IWUSR, show_dsp_lut, set_dsp_lut),
 };
 
 int rkfb_create_sysfs(struct fb_info *fbi)
diff --git a/include/linux/rk_fb.h b/include/linux/rk_fb.h
index e4e2db3e4429..b68134e1aaad 100644
--- a/include/linux/rk_fb.h
+++ b/include/linux/rk_fb.h
@@ -232,6 +232,8 @@ struct rk_lcdc_device_driver{
 	int (*fps_mgr)(struct rk_lcdc_device_driver *dev_drv,int fps,bool set);
 	int (*fb_get_layer)(struct rk_lcdc_device_driver *dev_drv,const char *id);                                      //find layer for fb
 	int (*fb_layer_remap)(struct rk_lcdc_device_driver *dev_drv,enum fb_win_map_order order);
+	int (*set_dsp_lut)(struct rk_lcdc_device_driver *dev_drv,int *lut);
+	int (*read_dsp_lut)(struct rk_lcdc_device_driver *dev_drv,int *lut);
 	
 };