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rk30 fb:modify rk_fb_check_var

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yxj
2012-04-25 15:15:05 +08:00
parent 8f79d1610b
commit ff2a2c976b
1 changed files with 9 additions and 61 deletions
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70
drivers/video/rockchip/rk_fb.c
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@@ -309,79 +309,27 @@ static int rk_fb_blank(int blank_mode, struct fb_info *info)
static int rk_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct rk_lcdc_device_driver *dev_drv = (struct rk_lcdc_device_driver * )info->par;
if( 0==var->xres_virtual || 0==var->yres_virtual ||
0==var->xres || 0==var->yres || var->xres<16 ||
((16!=var->bits_per_pixel)&&(32!=var->bits_per_pixel)) )
{
printk(">>>>>> fb_check_var fail 1!!! \n");
printk(">>>>>> 0==%d || 0==%d ", var->xres_virtual,var->yres_virtual);
printk("0==%d || 0==%d || %d<16 || ", var->xres,var->yres,var->xres<16);
printk("bits_per_pixel=%d \n", var->bits_per_pixel);
printk("%s check var fail 1!!! \n",info->fix.id);
printk("xres_vir:%d>>yres_vir:%d\n", var->xres_virtual,var->yres_virtual);
printk("xres:%d>>yres:%d\n", var->xres,var->yres);
printk("bits_per_pixel:%d \n", var->bits_per_pixel);
return -EINVAL;
}
if( (var->xoffset+var->xres)>var->xres_virtual ||
(var->yoffset+var->yres)>var->yres_virtual*2 )
if( ((var->xoffset+var->xres) > info->var.xres_virtual) ||
((var->yoffset+var->yres) > (info->var.yres_virtual*2)) )
{
printk(">>>>>> fb_check_var fail 2!!! \n");
printk(">>>>>> (%d+%d)>%d || ", var->xoffset,var->xres,var->xres_virtual);
printk("(%d+%d)>%d || ", var->yoffset,var->yres,var->yres_virtual);
printk("%s check_var fail 2!!! \n",info->fix.id);
printk("xoffset:%d>>xres:%d>>xres_vir:%d\n",var->xoffset,var->xres,info->var.xres_virtual);
printk("yoffset:%d>>yres:%d>>yres_vir:%d\n",var->yoffset,var->yres,info->var.yres_virtual);
return -EINVAL;
}
switch(var->nonstd&0x0f)
{
case 0: // rgb
switch(var->bits_per_pixel)
{
case 16: // rgb565
var->xres_virtual = (var->xres_virtual + 0x1) & (~0x1);
var->xres = (var->xres + 0x1) & (~0x1);
var->xoffset = (var->xoffset) & (~0x1);
break;
default: // rgb888
var->bits_per_pixel = 32;
break;
}
var->nonstd &= ~0xc0; //not support I2P in this format
break;
case 1: // yuv422
var->xres_virtual = (var->xres_virtual + 0x3) & (~0x3);
var->xres = (var->xres + 0x3) & (~0x3);
var->xoffset = (var->xoffset) & (~0x3);
break;
case 2: // yuv4200
var->xres_virtual = (var->xres_virtual + 0x3) & (~0x3);
var->yres_virtual = (var->yres_virtual + 0x1) & (~0x1);
var->xres = (var->xres + 0x3) & (~0x3);
var->yres = (var->yres + 0x1) & (~0x1);
var->xoffset = (var->xoffset) & (~0x3);
var->yoffset = (var->yoffset) & (~0x1);
break;
case 3: // yuv4201
var->xres_virtual = (var->xres_virtual + 0x3) & (~0x3);
var->yres_virtual = (var->yres_virtual + 0x1) & (~0x1);
var->xres = (var->xres + 0x3) & (~0x3);
var->yres = (var->yres + 0x1) & (~0x1);
var->xoffset = (var->xoffset) & (~0x3);
var->yoffset = (var->yoffset) & (~0x1);
var->nonstd &= ~0xc0; //not support I2P in this format
break;
case 4: // none
case 5: // yuv444
var->xres_virtual = (var->xres_virtual + 0x3) & (~0x3);
var->xres = (var->xres + 0x3) & (~0x3);
var->xoffset = (var->xoffset) & (~0x3);
var->nonstd &= ~0xc0; //not support I2P in this format
break;
default:
printk(">>>>>> fb1 var->nonstd=%d is invalid! \n", var->nonstd);
return -EINVAL;
}
return 0;
}