bool Frontend_DVBS::SetTuneParams( Transponder &t )
{
int satpos = GetCurrentPort( )->GetPortNum( );
int lnb = dvb_sat_search_lnb( LNB.c_str( ));
if( lnb < 0 )
{
LogError( "Unknown LNB '%s'", LNB.c_str( ));
t.SetState( Transponder::State_TuningFailed );
t.SaveConfig( );
return false;
}
// FIXME: we should never use fe->* directly, use functions...
//
fe->sat_number = satpos % 3;
fe->lnb = dvb_sat_get_lnb( lnb ); // FIXME: put to ptroperties in v4l
fe->diseqc_wait = 0;
fe->freq_bpf = 0;
return true;
}
bool Frontend::Tune( Transponder &t )
{
if( !IsPresent( ))
{
LogWarn( "device not present '%s'", name.c_str( ));
return false;
}
Lock( );
if( transponder )
{
if( transponder == &t )
{
usecount++;
Unlock( );
return true;
}
Log( "Frontend busy" );
Unlock( );
return false;
}
if( !Open( ))
{
Unlock( );
return false;
}
state = State_Tuning;
transponder = &t;
usecount++;
Unlock( );
t.SetState( Transponder::State_Tuning );
Log( "Tuning %s", t.toString( ).c_str( ));
uint8_t signal, noise;
LogWarn( "dvb_set_compat_delivery_system %d", t.GetDelSys( ));
int r = dvb_set_compat_delivery_system( fe, t.GetDelSys( ));
if( r != 0 )
{
LogError( "dvb_set_compat_delivery_system return %d", r );
goto fail;
}
SetTuneParams( t );
t.GetParams( fe );
LogWarn( "dvb_estimate_freq_shift");
dvb_estimate_freq_shift( fe );
r = dvb_fe_set_parms( fe );
if( r != 0 )
{
LogError( "dvb_fe_set_parms failed with %d.", r );
dvb_fe_prt_parms( fe );
goto fail;
}
dvb_fe_prt_parms( fe );
/* As the DVB core emulates it, better to always use auto */
dvb_fe_store_parm(fe, DTV_INVERSION, INVERSION_AUTO);
uint32_t freq;
dvb_fe_retrieve_parm(fe, DTV_FREQUENCY, &freq);
dvb_fe_prt_parms(fe);
if( !GetLockStatus( signal, noise, tune_timeout ))
{
LogError( "Tuning failed" );
goto fail;
}
t.SetState( Transponder::State_Tuned );
t.SetSignal( signal, noise );
return true;
fail:
t.SetState( Transponder::State_TuningFailed );
t.SaveConfig( );
Release( );
return false;
}
