library/BSSMAP_Templates.ttcn

module BSSMAP_Templates {

import from General_Types all;
import from Osmocom_Types all;
import from BSSAP_Types all;

type integer BssmapCause;

template PDU_BSSAP ts_BSSAP_BSSMAP := {
	discriminator := '0'B,
	spare := '0000000'B,
	dlci := omit,
	lengthIndicator := 0,	/* overwritten by codec */
	pdu := ?
}

template PDU_BSSAP tr_BSSAP_BSSMAP := {
	discriminator := '0'B,
	spare := '0000000'B,
	dlci := omit,
	lengthIndicator := ?,
	pdu := {
		bssmap := ?
	}
}

template (value) BSSMAP_IE_Cause ts_BSSMAP_IE_Cause(BssmapCause val) := {
	elementIdentifier := '04'O,
	lengthIndicator := 0,
	causeValue := int2bit(val, 7),
	extensionCauseValue := '0'B,
	spare1 := omit
}

template (value) PDU_BSSAP ts_BSSMAP_Reset(BssmapCause cause) modifies ts_BSSAP_BSSMAP := {
	pdu := {
		bssmap := {
			reset := {
				messageType := '30'O,
				cause := ts_BSSMAP_IE_Cause(cause),
				a_InterfaceSelectorForReset := omit
			}
		}
	}
}

template PDU_BSSAP tr_BSSMAP_Reset modifies tr_BSSAP_BSSMAP := {
	pdu := {
		bssmap := {
			reset := {
				messageType := '30'O,
				cause := ?,
				a_InterfaceSelectorForReset := *
			}
		}
	}
}

template (value) PDU_BSSAP ts_BSSMAP_ResetAck modifies ts_BSSAP_BSSMAP := {
	pdu := {
		bssmap := {
			resetAck := {
				messageType := '31'O,
				a_InterfaceSelectorForReset := omit
			}
		}
	}
}

template PDU_BSSAP tr_BSSMAP_ResetAck modifies tr_BSSAP_BSSMAP := {
	pdu := {
		bssmap := {
			resetAck := {
				messageType := '31'O,
				a_InterfaceSelectorForReset := *
			}
		}
	}
}

template BSSMAP_IE_CellIdentifier ts_BSSMAP_IE_CellID := {
	elementIdentifier := '05'O,
	lengthIndicator := 0,
	cellIdentifierDiscriminator := '0000'B,
	spare1_4 := '0000'B,
	cellIdentification := ?
}

type uint16_t BssmapLAC;
type uint16_t BssmapCI;

/*
template BSSMAP_IE_CellIdentifier ts_CellId_CGI(mcc, mnc, lac, ci)
modifies ts_BSSMAP_IE_CellID := {
	cellIdentification := {
		cI_LAC_CGI := {
			mnc_mcc := FIXME,
			lac := int2oct(lac, 2),
			ci := int2oct(ci, 2)
		}
	}
}
*/

template BSSMAP_IE_CellIdentifier ts_CellID_LAC_CI(BssmapLAC lac, BssmapCI ci)
modifies ts_BSSMAP_IE_CellID := {
	cellIdentification := {
		cI_LAC_CI := {
			lac := int2oct(lac, 2),
			ci := int2oct(ci, 2)
		}
	}
}

template BSSMAP_IE_CellIdentifier ts_CellId_CI(BssmapCI ci)
modifies ts_BSSMAP_IE_CellID := {
	cellIdentification := {
		cI_CI := int2oct(ci, 2)
	}
}

template BSSMAP_IE_CellIdentifier ts_CellId_none
modifies ts_BSSMAP_IE_CellID := {
	cellIdentification := {
		cI_noCell := ''O
	}
}


template BSSMAP_IE_Layer3Information ts_BSSMAP_IE_L3Info(octetstring l3info) := {
	elementIdentifier := '17'O,
	lengthIndicator := 0,
	layer3info := l3info
}

template PDU_BSSAP ts_BSSMAP_ComplL3(BSSMAP_IE_CellIdentifier cell_id, octetstring l3_info)
modifies ts_BSSAP_BSSMAP := {
	pdu := {
		bssmap := {
			completeLayer3Information := {
				messageType := '57'O,
				cellIdentifier := cell_id,
				layer3Information := ts_BSSMAP_IE_L3Info(l3_info),
				chosenChannel := omit,
				lSAIdentifier := omit,
				aPDU := omit,
				codecList := omit,
				redirectAttemptFlag := omit,
				sendSequenceNumber := omit,
				iMSI := omit
			}
		}
	}
}

template PDU_BSSAP tr_BSSMAP_ComplL3 modifies tr_BSSAP_BSSMAP := {
	pdu := {
		bssmap := {
			completeLayer3Information := ?
		}
	}
}


template PDU_BSSAP ts_BSSMAP_HandoReq(BssmapCause cause, BSSMAP_IE_CellIdentifierList cid_list)
modifies ts_BSSAP_BSSMAP := {
	pdu := {
		bssmap := {
			handoverRequired := {
				messageType := '11'O,
				cause := ts_BSSMAP_IE_Cause(cause),
				responseRequest := omit,
				cellIdentifierList := cid_list,
				circuitPoolList := omit,
				currentChannelType1 := omit,
				speechVersion := omit,
				queueingIndicator := omit,
				oldToNewBSSInfo := omit,
				sourceToTargetRNCTransparentInfo := omit,
				sourceToTargetRNCTransparentInfoCDMA := omit,
				gERANClassmark := omit,
				talkerPriority := omit,
				speechCodec := omit,
				cSG_Identifier := omit
			}
		}
	}
}

const OCT1 ChRate_TCHF	:= '08'O;
const OCT1 ChRate_TCHH	:= '09'O;

template (value) BSSMAP_IE_ChannelType ts_BSSMAP_IE_ChannelType := {
	elementIdentifier := '0B'O,	/* overwritten */
	lengthIndicator := 0,		/* overwritten */
	speechOrDataIndicator := '0001'B,	/* speech */
	spare1_4 := '0000'B,
	channelRateAndType := ChRate_TCHF,
	speechId_DataIndicator := '01'O	/* FRv1 */
}

template (value) BSSMAP_IE_CircuitIdentityCode ts_BSSMAP_IE_CIC(uint11_t span, uint5_t ts) := {
	elementIdentifier := '01'O,	/* overwritten */
	cicHigh := bit2oct(substr(int2bit(span, 11) << 5, 0, 8)),
	cicLow := bit2oct((substr(int2bit(span, 11), 8, 3) << 5) & int2bit(ts, 5))
}

template (value) PDU_BSSAP ts_BSSMAP_AssignmentCmd(uint11_t span, uint5_t ts)
modifies ts_BSSAP_BSSMAP := {
	pdu := {
		bssmap := {
			assignmentRequest := {
				messageType :='01'O,	/* overwritten */
				channelType := ts_BSSMAP_IE_ChannelType,
				layer3HeaderInfo := omit,
				priority := omit,
				circuitIdentityCode := ts_BSSMAP_IE_CIC(span, ts),
				downLinkDTX_Flag := omit,
				interferenceBandToBeUsed := omit,
				classmarkInformationType2 := omit,
				groupCallReference := omit,
				talkerFlag := omit,
				configurationEvolutionIndication := omit,
				lsaAccesControlSuppression := omit,
				serviceHandover := omit,
				encryptionInformation := omit,
				talkerPriority := omit,
				aoIPTransportLayer := omit,
				codecList := omit,
				callIdentifier := omit,
				kC128 := omit,
				globalCallReference := omit,
				lCLS_Configuration := omit,
				lCLS_ConnectionStatusControl := omit,
				lCLS_CorrelationNotNeeded := omit
			}
		}
	}
}

}