[Fireprime] s5k4ec AF function has some error!!

jaymoon

Hi,

I have a problem using the s5k4ec module that you made.

I modified your /media/video/s5k4ec.c to use Auto Focus as follows:

static unsigned int SensorConfiguration = (CFG_WhiteBalance|CFG_Effect
                                           |CFG_Scene|CFG_Focus
                                           |CFG_FocusZone);
//below is original code.
//static unsigned int SensorConfiguration = (CFG_WhiteBalance|CFG_Effect
//                                           |CFG_Scene
//                                           |CFG_FocusZone);

Without the AF function, the captured image is too burred, that is, it is not clean.
If I use AF, the image is better than no AF.
But it is still burr.

So, I debugged the code, and then I found some error in your code

the debugging message as follows:

== error log  ->why this log is happening?
[   72.292728] s5k4ec[8452] [jaym ################ single focus mode set !
[   74.265015] s5k4ec(8479): s5k4ec[8479] [jaym ######]focus state(0x4718) is error!

== source code s5k4ec.c
static int sensor_focus_af_single_usr_cb(struct i2c_client *client)
{

        int ret = 0;
        char cnt;
        u16 state;
        struct af_cmdinfo cmdinfo;
        //char s_zone[5],i;
        cmdinfo.cmd_tag = 0x01;
        cmdinfo.validate_bit = 0x80;
                printk("%s[%d] [jaym ################ single focus mode set !\n",SENSOR_NAME_STRING(),__LINE__);


  sensor_write(client,0xFCFC, 0xD000),
  sensor_write(client,0x0028, 0x7000),
  sensor_write(client,0x002A, 0x028E),
  sensor_write(client,0x0F12, 0x0000),
  sensor_write(client,0x002A, 0x028C),
  sensor_write(client,0x0F12, 0x0005),

  //sensor_write(client,0xffff, 150),   // delay 150ms

        cnt = 0;
        state=0x0000;
        do
        {
                if (cnt != 0) {
                        msleep(1);
                }
                cnt++;
                sensor_write(client,0x002E, 0x2EEE),
                ret = sensor_read(client, 0x0f12, &state);
                //printk("[jaym ] printk ######### \n");

        }while((state != 0x0002) && (cnt<100));

        if (state != 0x0002) {
                SENSOR_TR("%s[%d] [jaym ######]focus state(0x%x) is error!\n",SENSOR_NAME_STRING(),__LINE__,state);
ret = -1;
goto sensor_af_single_end;
        } else {
                SENSOR_DG("%s[%d] single focus mode set success!\n",SENSOR_NAME_STRING(),__LINE__);
        }
sensor_af_single_end:
        return ret;
}

Can you help me why this is happening?

thank you

jaymoon

I fixed it,

sensor_write(client,0x002c, 0x7000);
sensor_write(client,0x002E, 0x2EEE),
ret = sensor_read(client, 0x0f12, &state);


it needs more write,,,,

But its captured image is still burred..

I need it to be more cleared.

Somebody can help???