tina 新建图层问题

[yuwei]

按照文档的资料新建了一个图层

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "sunxi_display2.h"
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <stdlib.h>

int dispfd = 0;


unsigned int addr[800*480] = {0xFF};


static void disp_set_add(void){

        unsigned long arg[3] = {0};
        struct disp_layer_config config;
        unsigned int width = 480;
        unsigned int height = 800;
        unsigned int ret = 0;
        memset(&config, 0, sizeof(struct disp_layer_config));

        /*设置图层参数*/
        config.channel = 0;
        config.layer_id = 0;
        config.enable = 1;
        config.info.mode = LAYER_MODE_BUFFER;
//      config.info.fb.addr[0] = (unsigned long long)0x48400000;
        config.info.fb.addr[0] = (unsigned long long)addr;
        config.info.fb.size[0].width = width;
        config.info.fb.size[0].height = height;
        config.info.fb.align[0] = 4;
        config.info.fb.format = DISP_FORMAT_ARGB_8888;


        /*设置crop 裁剪区域大小*/
        config.info.fb.crop.x = 0;
        config.info.fb.crop.y = 0;
        config.info.fb.crop.width = (unsigned long long)width << 32;
        config.info.fb.crop.height = (unsigned long long)height << 32;


        config.info.fb.flags = DISP_BF_NORMAL;
        config.info.fb.scan = DISP_SCAN_PROGRESSIVE;
        config.info.alpha_mode = 2;
        config.info.alpha_value = 0xFF;
        config.info.zorder = 20;

        /*设置窗口大小*/
        config.info.screen_win.x = 0;
        config.info.screen_win.y = 0;
        config.info.screen_win.width = width;
        config.info.screen_win.height = height;
        config.info.id = 0;

        arg[0] = 0; //显示器0
        arg[1] = (unsigned long)&config; //图层配置
        arg[2] = 1; //设置一个图层

        ret = ioctl(dispfd, DISP_LAYER_SET_CONFIG, (void*)arg);
        if(ret < 0){
                printf("disp_set_add fail to set layer info\n");
        }
}

int main(int argc,char ** argv){

        dispfd = open("dev/disp",O_RDWR);
        if(dispfd < 0){
                printf("open display device fail!!!\n");
                return -1;
        }
        disp_set_add();
        while(1){
//              memset(addr, 0xFF , 100);
        }

}
                                                                                                                                     62,0-1        64%

编译传到板子里运行发现的确增加了一个图层但是，屏幕却花屏了

[yuwei]

图层信息

有大佬知道是什么原因吗？