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📄 image_sensor.c

📁 camera SIV100B,在MTK6225下的驱动程序
💻 C
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*   This function set the register of SIV100B.
*
* PARAMETERS
*   iAddr : the register index of SIV100B
*   iPara : setting parameter of the specified register of SIV100B
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
void SIV100B_WriteReg(kal_uint32 iAddr, kal_uint32 iPara)
{
    write_cmos_sensor(iAddr, iPara);
}   /* SIV100B_WriteReg() */

/*************************************************************************
* FUNCTION
*   read_cmos_sensor
*
* DESCRIPTION
*   This function read parameter of specified register from SIV100B.
*
* PARAMETERS
*   iAddr: the register index of SIV100B
*
* RETURNS
*   the data that read from SIV100B
*
* GLOBALS AFFECTED
*
*************************************************************************/
kal_uint32 SIV100B_ReadReg(kal_uint32 iAddr)
{
    return read_cmos_sensor(iAddr);
}   /* SIV100B_ReadReg() */

/*************************************************************************
* FUNCTION
*   SIV100B_SetShutter
*
* DESCRIPTION
*   This function set e-shutter of SIV100B to change exposure time.
*
* PARAMETERS
*   shutter : exposured lines
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
void SIV100B_SetShutter(kal_uint16 shutter)
{
}   /* SIV100B_SetShutter */

/*************************************************************************
* FUNCTION
*   SIV100B_SetGain
*
* DESCRIPTION
*   This function is to set global gain to sensor.
*
* PARAMETERS
*   iGain : sensor global gain(base: 0x40)
*
* RETURNS
*   the actually gain set to sensor.
*
* GLOBALS AFFECTED
*
*************************************************************************/
kal_uint16 SIV100B_SetGain(kal_uint16 iGain)
{
    return iGain;
}   /* SIV100B_SetGain */

/*************************************************************************
* FUNCTION
*   SIV100B_NightMode
*
* DESCRIPTION
*   This function switch on/off night mode of SIV100B.
*
* PARAMETERS
*   None
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
void SIV100B_NightMode(kal_bool bEnable)
{
    static kal_uint32 iDelay = 0x001FFFFF;
    volatile kal_uint32 iI = 0;

    g_bNightMode = bEnable;

    if (g_bCaptureMode == KAL_TRUE)
    {
        return;
    }

    /************************************************************
    *   AE must be off to do the following mode change setting. *
    *   If not off, the covered EV range will be the same for   *
    *   normal/night modes.                                     *
    ************************************************************/
    write_cmos_sensor(0x40, 0x00);

    /********************************************************
    *   MUST delay after turn off AE.                       *
    *   If no such delay, AE will not work after re-enable  *
    ********************************************************/
    for (iI = 0; iI < iDelay; iI++);

    if (bEnable == KAL_TRUE)
    {
        if (g_bVideoMode == KAL_TRUE)
        {   /* video preview mode */
			write_cmos_sensor(0x33, VIDEO_MODE_FRCNT_50HZ_NIGHT);
			write_cmos_sensor(0xD7, 0x18);
        }
        else
        {   /* camera preview mode */

			write_cmos_sensor(0x33, PV_MODE_FRCNT_50HZ_NIGHT);
			write_cmos_sensor(0xD7, 0x18);
                if( ((read_cmos_sensor(0x30) << 8) | read_cmos_sensor(0x31))
                    >= PV_MODE_FRCNT_50HZ_NORMAL * PV_MODE_STSTN_50HZ_NORMAL)
                {
                    kal_uint16 iTemp;
                    iTemp = PV_MODE_FRCNT_50HZ_NIGHT  * PV_MODE_STSTN_50HZ_NIGHT;
                    write_cmos_sensor(0x30, iTemp>>8);
                    write_cmos_sensor(0x31, iTemp&0x00FF);
                    write_cmos_sensor(0x32,0x05);
                }   
        }
    }
    else
    {
        if (g_bVideoMode == KAL_TRUE)
        {   /* video preview mode */
			write_cmos_sensor(0x33, VIDEO_MODE_FRCNT_50HZ_NORMAL);
			write_cmos_sensor(0xD7, 0x00);
        }
        else
        {   /* camera preview mode */
			write_cmos_sensor(0x33, PV_MODE_FRCNT_50HZ_NORMAL);
			write_cmos_sensor(0xD7, 0x00);
                if( ((read_cmos_sensor(0x30) << 8) | read_cmos_sensor(0x31)) 
                    >= PV_MODE_FRCNT_50HZ_NORMAL * PV_MODE_STSTN_50HZ_NORMAL)
                {
                    kal_uint16 iTemp;
                    iTemp = PV_MODE_FRCNT_50HZ_NORMAL  * PV_MODE_STSTN_50HZ_NORMAL;
                    write_cmos_sensor(0x30, iTemp>>8);
                    write_cmos_sensor(0x31, iTemp&0x00FF);
                    write_cmos_sensor(0x32,0x05);
                }    
        }
    }

    /************************************************************
    *   After the above mode change setting, turn on AE again   *
    ************************************************************/
    write_cmos_sensor(0x40, g_iAE_Meter == CAM_AE_METER_AUTO ? 0x80 : 0xA0);
}   /* SIV100B_NightMode */

/*************************************************************************
* FUNCTION
 *  SIV100B_SetFlash
*
* DESCRIPTION
*   turn on/off SIV100B flashlight .
*
* PARAMETERS
*   bEnable:
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
void SIV100B_SetFlash(kal_bool bEnable)
{
}   /* SIV100B_SetFlash */

/*************************************************************************
* FUNCTION
*   SIV100B_Set_Param_Zoom
*
* DESCRIPTION
 *  SIV100B zoom setting.
*
* PARAMETERS
*   None
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
kal_uint32 SIV100B_Set_Para_Zoom(kal_uint32 iPara)
{
    switch (iPara)
    {
        case CAM_ZOOM_1X:
        case CAM_ZOOM_2X:
        case CAM_ZOOM_4X:
        default:
            return KAL_FALSE;
    }

    return KAL_FALSE;
}   /* SIV100B_Set_Param_Zoom */

/*************************************************************************
* FUNCTION
*   SIV100B_Set_Para_Contrast
*
* DESCRIPTION
*   SIV100B contrast setting.
*
* PARAMETERS
*   None
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
kal_uint32 SIV100B_Set_Para_Contrast(kal_uint32 iPara)
{
    return KAL_FALSE;
}   /* SIV100B_Set_Para_Contrast */

/*************************************************************************
* FUNCTION
 *  SIV100B_Set_Para_Brightness
*
* DESCRIPTION
 *  SIV100B brightness setting.
*
* PARAMETERS
*   None
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
kal_uint32 SIV100B_Set_Para_Brightness(kal_uint32 iPara)
{
    return KAL_FALSE;
}   /* SIV100B_Set_Para_Brightness */

/*************************************************************************
* FUNCTION
*   SIV100B_Set_Para_Hue
*
* DESCRIPTION
*   SIV100B hue setting.
*
* PARAMETERS
*   None
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
kal_uint32 SIV100B_Set_Para_Hue(kal_uint32 iPara)
{
    return KAL_FALSE;
}   /* SIV100B_Set_Para_Hue */

/*************************************************************************
* FUNCTION
*   SIV100B_Set_Para_Gamma
*
* DESCRIPTION
*   SIV100B gamma setting.
*
* PARAMETERS
*   None
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
kal_uint32 SIV100B_Set_Para_Gamma(kal_uint32 iPara)
{
    return KAL_FALSE;
}   /* SIV100B_Set_Para_Gamma */

/*************************************************************************
* FUNCTION
*   SIV100B_Set_Para_WB
*
* DESCRIPTION
*   SIV100B WB setting.
*
* PARAMETERS
*   None
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
kal_uint32 SIV100B_Set_Para_WB(kal_uint32 iPara)
{
    /****************************************************************************
    *   camera_para.AWB.LightSource[m][n] is in 0x80 base, i.e. 0x80 = 1x gain  *
    ****************************************************************************/
    kal_uint16 iRGain = 0x80, iGGain = 0x80, iBGain = 0x80; // all set to 1x gain

    if (g_bCaptureMode == KAL_TRUE)
    {
        return KAL_TRUE;
    }

	switch (iPara)
	{
	case CAM_WB_AUTO:   // enable AWB
	// CAM_WB_AUTO mode should not update R/G/B gains
		write_cmos_sensor(0x60, 0xC8);
	return KAL_TRUE;

	case CAM_WB_CLOUD:
		write_cmos_sensor(0x60, 0x00);  // disable AWB
		write_cmos_sensor(0x7A, 0xD0);
		write_cmos_sensor(0x7B, 0x88);
	break;

	case CAM_WB_DAYLIGHT:
		write_cmos_sensor(0x60, 0x00);  // disable AWB
		write_cmos_sensor(0x7A, 0xC2);
		write_cmos_sensor(0x7B, 0x9E);
	break;

	case CAM_WB_INCANDESCENCE:
		write_cmos_sensor(0x60, 0x00);  // disable AWB
		write_cmos_sensor(0x7A, 0x98);
		write_cmos_sensor(0x7B, 0xC8);
	break;

	case CAM_WB_FLUORESCENT:
		write_cmos_sensor(0x60, 0x00);  // disable AWB
		write_cmos_sensor(0x7A, 0xAA);
		write_cmos_sensor(0x7B, 0xBE);
	break;

	case CAM_WB_TUNGSTEN:
		write_cmos_sensor(0x60, 0x00);  // disable AWB
		write_cmos_sensor(0x7A, 0x90);
		write_cmos_sensor(0x7B, 0xC0);
	break;

	case CAM_WB_MANUAL:
	default:
        return KAL_FALSE;
    }

    return KAL_TRUE;
}   /* SIV100B_Set_Para_WB */

/*************************************************************************
* FUNCTION
*   SIV100B_Set_Para_EV
*
* DESCRIPTION
*   SIV100B exposure setting.
*
* PARAMETERS
*   None
*
* RETURNS
*   None
*
* GLOBALS AFFECTED
*
*************************************************************************/
kal_uint32 SIV100B_Set_Para_EV(kal_uint32 iPara)
{
    switch (iPara)
    {
    case CAM_EV_NEG_4_3:    // -4 EV
        write_cmos_sensor(0x41, 0x4A);
        break;

    case CAM_EV_NEG_3_3:    // -3 EV
        write_cmos_sensor(0x41, 0x5A);
        break;

    case CAM_EV_NEG_2_3:    // -2 EV
        write_cmos_sensor(0x41, 0x6A);
        break;

    case CAM_EV_NEG_1_3:    // -1 EV
        write_cmos_sensor(0x41, 0x7A);
        break;

    case CAM_EV_ZERO:   // +0 EV
        write_cmos_sensor(0x41, 0x8A);
        break;

    case CAM_EV_POS_1_3:    // +1 EV
        write_cmos_sensor(0x41, 0x9A);
        break;

    case CAM_EV_POS_2_3:    // +2 EV
        write_cmos_sensor(0x41, 0xAA);
        break;

    case CAM_EV_POS_3_3:    // +3 EV
        write_cmos_sensor(0x41, 0xBA);
        break;

    case CAM_EV_POS_4_3:    // +4 EV
        write_cmos_sensor(0x41, 0xCA);
        break;

    default:
        return KAL_FALSE;    
    }

    return KAL_TRUE;	
}   /* SIV100B_Set_Para_EV */

/*************************************************************************
* FUNCTION
*   SIV100B_Set_Para_Banding
*

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