Exemple #1
0
/**

@see   DVBT_NIM_FP_GET_TR_OFFSET_PPM

*/
s32
dvbt_nim_default_GetTrOffsetPpm(
	DVBT_NIM_MODULE *pNim,
	s64 *pTrOffsetPpm
	)
{
	DVBT_DEMOD_MODULE *pDemod;


	// Get demod module.
	pDemod = pNim->pDemod;


	// Get TR offset in ppm from demod.
	if(pDemod->GetTrOffsetPpm(pDemod, pTrOffsetPpm) != FUNCTION_SUCCESS)
		goto error_status_execute_function;


	return FUNCTION_SUCCESS;


error_status_execute_function:
	return FUNCTION_ERROR;
}
static int fe_demod_info_ioctrl(struct dvb_frontend *fe, void *parg)
{

    struct rtl2832u_ioctl_info_struct*  info_ctrl = (struct rtl2832u_ioctl_info_struct*)parg;
    int ret =-1;
    struct rtl2832_state*	p_state = fe->demodulator_priv;
    DVBT_NIM_MODULE 	*pNim;
    DVBT_DEMOD_MODULE 	*pDemod;
    u16			strength=0;
    u32			quality=0;
    int 			answer=0;
    unsigned long 		BerNum=0,BerDen=1;
    long 			SnrDbNum=0, SnrDbDen=1;
    long 			tr_ppm=0,cr_hz=0;
    unsigned long 		data_length=info_ctrl->data_length;
    int 			info_cmd = info_ctrl->cmd_num;
    deb_info("+%s : ioctl -demod info cmd = %d ,data length= %d (must > %d )\n", __FUNCTION__,info_cmd,(int)data_length,INFO_DEMOD_DATA_LEN);
    if (p_state->demod_type != RTL2832) {
        deb_info("ERROR::demod type not rtl2832u...\n");
        return -1;
    }
    if (data_length < INFO_DEMOD_DATA_LEN) {
        deb_info("ERROR::data length is too short...,must be greater than %d \n",INFO_DEMOD_DATA_LEN);
        return -1;
    }
    pNim = p_state->pNim;
    if (pNim == NULL) {
        deb_info("ERROR::nim is null...\n");
        return -1;
    }

    pDemod=pNim->pDemod;


    if ((info_cmd != FE_GET_SIGN_STRENGTH) && (info_cmd != FE_GET_SIGN_QUALITY))
    {
        if( mutex_lock_interruptible(&p_state->i2c_repeater_mutex) )	{
            return -10;
        }
    }
    info_ctrl->data[INFO_DATA_VALUE]=0x00000000;
    info_ctrl->data[INFO_DATA_DEN]=1;
    switch(info_cmd)
    {
    case FE_GET_SIGN_STRENGTH:
        if (rtl2832_read_signal_strength(fe,&strength) != 0)
        {
            ret=-10;
        }
        else
        {
            ret=10;
            info_ctrl->data[INFO_DATA_VALUE]=(unsigned long)strength;
            info_ctrl->data[INFO_DATA_DEN]=1;
//				deb_info("rtl2832u ioctl (FE_GET_SIGN_STRENGTH)- strength = %x (%x). \n",strength,info_ctrl->data[INFO_DATA_VALUE] );

        }


        break;
    case FE_GET_SIGN_QUALITY:
        if (rtl2832_read_signal_quality(fe,&quality) != 0)
        {
            ret=-10;
        }
        else
        {
            ret=10;
            info_ctrl->data[INFO_DATA_VALUE]=(unsigned long)quality;
            info_ctrl->data[INFO_DATA_DEN]=1;
//				deb_info("rtl2832u ioctl (FE_GET_SIGN_QUALITY)- quality = %x (%x). \n",quality,info_ctrl->data[INFO_DATA_VALUE] );
        }

        break;
    case FE_GET_SIGN_LOCK:

        answer=NO;
        if (pDemod->IsSignalLocked(pDemod, &answer) != FUNCTION_SUCCESS)
        {
            ret=-10;
        }
        else
        {
            if (answer == YES) {
                info_ctrl->data[INFO_DATA_VALUE]=1;
            }
            else	info_ctrl->data[INFO_DATA_VALUE]=0;

            info_ctrl->data[INFO_DATA_DEN]=1;
            ret=10;
        }


        break;
    case FE_GET_DEMOD_BER:

        if(pDemod->GetBer(pDemod, &BerNum, &BerDen) != FUNCTION_SUCCESS)
        {
            ret=-10;
            info_ctrl->data[INFO_DATA_VALUE]=19616;
            info_ctrl->data[INFO_DATA_DEN]=1;
        }
        else
        {
            ret=10;
            info_ctrl->data[INFO_DATA_VALUE]=BerNum;
            info_ctrl->data[INFO_DATA_DEN]=BerDen;
        }

        break;
    case FE_GET_DEMOD_SNR_DB:
        if(pDemod->GetSnrDb(pDemod, &SnrDbNum, &SnrDbDen) != FUNCTION_SUCCESS)
        {
            ret=-10;
            info_ctrl->data[INFO_DATA_VALUE]=0;
            info_ctrl->data[INFO_DATA_DEN]=1;
        }
        else
        {
            ret=10;
            info_ctrl->data[INFO_DATA_VALUE]=SnrDbNum;
            info_ctrl->data[INFO_DATA_DEN]=SnrDbDen;
        }
        break;
    case FE_GET_DEMOD_TR_PPM:
        if(pDemod->GetTrOffsetPpm(pDemod, &tr_ppm) != FUNCTION_SUCCESS)
        {
            ret=-10;
            info_ctrl->data[INFO_DATA_VALUE]=0;
            info_ctrl->data[INFO_DATA_DEN]=1;
        }
        else
        {
            ret=10;
            info_ctrl->data[INFO_DATA_VALUE]=tr_ppm;
            info_ctrl->data[INFO_DATA_DEN]=1;
        }
        break;
    case FE_GET_DEMOD_CR_HZ:
        if(pDemod->GetCrOffsetHz(pDemod, &cr_hz) != FUNCTION_SUCCESS)
        {
            ret=-10;
            info_ctrl->data[INFO_DATA_VALUE]=0;
            info_ctrl->data[INFO_DATA_DEN]=1;
        }
        else
        {
            ret=10;
            info_ctrl->data[INFO_DATA_VALUE]=cr_hz;
            info_ctrl->data[INFO_DATA_DEN]=1;
        }
        break;
    default:
        deb_info("ERROR::rtl2832u ioctl - std info cmd ret= unknow info commond. \n" );
        ret=-1;
        break;
    }


    if ((info_cmd != FE_GET_SIGN_STRENGTH) && (info_cmd != FE_GET_SIGN_QUALITY)) {
        mutex_unlock(&p_state->i2c_repeater_mutex);
    }

//	deb_info("-%s :ioctl - std info cmd ret= %x,data=%x,den=%x\n", __FUNCTION__,ret,(int)info_ctrl->data[INFO_DATA_VALUE],info_ctrl->data[INFO_DATA_DEN]);

    return ret;

}