-- https://www.etsi.org/deliver/etsi_en/302600_302699/30263702/01.04.01_30/en_30263702v010401v.pdf
--
CAM-PDU-Descriptions {
itu-t (0) identified-organization (4) etsi (0) itsDomain (5) wg1 (1) en (302637) cam (2) version (2)
}

    DEFINITIONS AUTOMATIC TAGS ::=

    BEGIN

    IMPORTS
    
    ItsPduHeader, ReferencePosition, AccelerationControl, CauseCode, Curvature,CurvatureCalculationMode,DriveDirection,
    Heading, LanePosition, EmergencyPriority, EmbarkationStatus, Speed,
    LongitudinalAcceleration, LateralAcceleration, VerticalAcceleration, StationType,
    ExteriorLights, DangerousGoodsBasic, SpecialTransportType, LightBarSirenInUse, VehicleRole,
    VehicleLength, VehicleWidth, PathHistoryV2, RoadworksSubCauseCode, ClosedLanes, TrafficRule,
    SpeedLimit, SteeringWheelAngle, PerformanceClass, YawRate, ProtectedCommunicationZone, PtActivation,
    Latitude, Longitude, ProtectedCommunicationZonesRSU, CenDsrcTollingZone
    -- Wireshark modification 
    FROM ETSI-ITS-CDD {itu-t (0) identified-organization (4) etsi (0) itsDomain (5) wg1 (1) 102894 cdd (2) major-version-3 (3) minor-version-1 (1)}
    ;
    -- The root data frame for cooperative awareness messages
    CAM ::= SEQUENCE {
     header ItsPduHeader,
     cam CoopAwareness
    }

    CoopAwareness ::= SEQUENCE {
     generationDeltaTime GenerationDeltaTime,
     camParameters CamParameters
    }

    CamParameters ::= SEQUENCE {
     basicContainer BasicContainer,
     highFrequencyContainer HighFrequencyContainer,
     lowFrequencyContainer LowFrequencyContainer OPTIONAL,
     specialVehicleContainer SpecialVehicleContainer OPTIONAL,
     ...
    }

    HighFrequencyContainer ::= CHOICE {
     basicVehicleContainerHighFrequency BasicVehicleContainerHighFrequency,
     rsuContainerHighFrequency RSUContainerHighFrequency,
     ...
    }

     LowFrequencyContainer ::= CHOICE {
     basicVehicleContainerLowFrequency BasicVehicleContainerLowFrequency,
     ...
    }

    SpecialVehicleContainer ::= CHOICE {
     publicTransportContainer PublicTransportContainer,
     specialTransportContainer SpecialTransportContainer,
     dangerousGoodsContainer DangerousGoodsContainer,
     roadWorksContainerBasic RoadWorksContainerBasic,
     rescueContainer RescueContainer,
     emergencyContainer EmergencyContainer,
     safetyCarContainer SafetyCarContainer,
     ...
    }

    BasicContainer ::= SEQUENCE {
     stationType StationType,
     referencePosition ReferencePosition,
     ...
    }

    BasicVehicleContainerHighFrequency ::= SEQUENCE {
     heading Heading,
     speed Speed,
     driveDirection DriveDirection,
     vehicleLength VehicleLength,
     vehicleWidth VehicleWidth,
     longitudinalAcceleration LongitudinalAcceleration,
     curvature Curvature,
     curvatureCalculationMode CurvatureCalculationMode,
     yawRate YawRate,
     accelerationControl AccelerationControl OPTIONAL,
     lanePosition LanePosition OPTIONAL,
     steeringWheelAngle SteeringWheelAngle OPTIONAL,
     lateralAcceleration LateralAcceleration OPTIONAL,
     verticalAcceleration VerticalAcceleration OPTIONAL,
     performanceClass PerformanceClass OPTIONAL,
     cenDsrcTollingZone CenDsrcTollingZone OPTIONAL
    }

    BasicVehicleContainerLowFrequency ::= SEQUENCE {
     vehicleRole VehicleRole,
     exteriorLights ExteriorLights,
     pathHistory PathHistoryV2
    }

    PublicTransportContainer ::= SEQUENCE {
     embarkationStatus EmbarkationStatus,
     ptActivation PtActivation OPTIONAL
    }

    SpecialTransportContainer ::= SEQUENCE {
     specialTransportType SpecialTransportType,
     lightBarSirenInUse LightBarSirenInUse
    }

     DangerousGoodsContainer ::= SEQUENCE {
     dangerousGoodsBasic DangerousGoodsBasic
     }

     RoadWorksContainerBasic ::= SEQUENCE {
     roadworksSubCauseCode RoadworksSubCauseCode OPTIONAL,
     lightBarSirenInUse LightBarSirenInUse,
     closedLanes ClosedLanes OPTIONAL
     }

    RescueContainer ::= SEQUENCE {
     lightBarSirenInUse LightBarSirenInUse
    }

    EmergencyContainer ::= SEQUENCE {
     lightBarSirenInUse LightBarSirenInUse,
     incidentIndication CauseCode OPTIONAL,
     emergencyPriority EmergencyPriority OPTIONAL
    }

    SafetyCarContainer ::= SEQUENCE {
     lightBarSirenInUse LightBarSirenInUse,
     incidentIndication CauseCode OPTIONAL,
     trafficRule TrafficRule OPTIONAL,
     speedLimit SpeedLimit OPTIONAL
    }

    RSUContainerHighFrequency ::= SEQUENCE {
     protectedCommunicationZonesRSU ProtectedCommunicationZonesRSU OPTIONAL,
     ...
    }

    GenerationDeltaTime ::= INTEGER { oneMilliSec(1) } (0..65535)

END