lbslns

package
v3.16.0 Latest Latest
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 Go to latest Published: Nov 12, 2021 License: Apache-2.0 Imports: 23 Imported by: 0

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Constants

View Source 
const (
	// Upstream types for messages from the Gateway.
	TypeUpstreamVersion              = "version"
	TypeUpstreamJoinRequest          = "jreq"
	TypeUpstreamUplinkDataFrame      = "updf"
	TypeUpstreamProprietaryDataFrame = "propdf"
	TypeUpstreamTxConfirmation       = "dntxed"
	TypeUpstreamTimeSync             = "timesync"
	TypeUpstreamRemoteShell          = "rmtsh"

	// Downstream types for messages from the Network
	TypeDownstreamDownlinkMessage           = "dnmsg"
	TypeDownstreamDownlinkMulticastSchedule = "dnsched"
	TypeDownstreamTimeSync                  = "timesync"
	TypeDownstreamRemoteCommand             = "runcmd"
	TypeDownstreamRemoteShell               = "rmtsh"
)

Definition of LoRa Basic Station message types.

Variables

This section is empty.

Functions

func ConcentratorTimeFromXTime added in v3.16.0 

func ConcentratorTimeFromXTime(xTime int64) scheduling.ConcentratorTime

ConcentratorTimeFromXTime constructs the scheduling.ConcentratorTime associated with the provided XTime.

func ConcentratorTimeToXTime added in v3.16.0 

func ConcentratorTimeToXTime(id int32, t scheduling.ConcentratorTime) int64

ConcentratorTimeToXTime contructs the XTime associated with the provided session ID and concentrator timestamp.

func NewFormatter 

func NewFormatter(maxRoundTripDelay time.Duration) ws.Formatter

NewFormatter returns a new LoRa Basic Station LNS formatter.

func SessionIDFromXTime added in v3.16.0 

func SessionIDFromXTime(xTime int64) int32

SessionIDFromXTime constructs the session ID associated with the provided XTime.

func TimeFromGPSTime added in v3.16.0 

func TimeFromGPSTime(t int64) time.Time

TimeFromGPSTime constructs a time.Time from the provided GPS time in microseconds.

func TimeFromUnixSeconds added in v3.16.0 

func TimeFromUnixSeconds(tf float64) time.Time

TimeFromUnixSeconds constructs a time.Time from the provided UNIX fractional timestamp.

func TimePtrFromGPSTime added in v3.16.0 

func TimePtrFromGPSTime(t int64) *time.Time

TimePtrFromGPSTime constructs a *time.Time from the provided GPS time in microseconds. If the timestamp is 0, this function returns nil.

func TimePtrFromUnixSeconds added in v3.16.0 

func TimePtrFromUnixSeconds(tf float64) *time.Time

TimeFromUnixSeconds constructs a *time.Time from the provided UNIX fractional timestamp. If the timestamp is 0, this function returns nil.

func TimePtrFromUpInfo added in v3.16.0 

func TimePtrFromUpInfo(gpsTime int64, rxTime float64) *time.Time

TimePtrFromUpInfo contructs a *time.Time from the provided uplink metadata information. The GPS timestamp is used if present, then the RxTime. The function returns nil if both timestamps are unavailable.

func TimePtrToUpInfoTime added in v3.16.0 

func TimePtrToUpInfoTime(t *time.Time) (float64, int64)

TimePtrToUpInfoTime constructs the RxTime and GPSTime from the provided *time.Time. If the time is nil, this function returns (0.0, 0).

func TimeToGPSTime added in v3.16.0 

func TimeToGPSTime(t time.Time) int64

TimeToGPSTime contructs a GPS timestamp from the provided time.Time.

func TimeToUnixSeconds added in v3.16.0 

func TimeToUnixSeconds(t time.Time) float64

TimeToUnixSeconds constructs a UNIX fractional timestamp from the provided time.Time.

func TimestampFromXTime added in v3.16.0 

func TimestampFromXTime(xTime int64) uint32

TimestampFromXTime constructs the concentrator timestamp associated with the provided XTime.

func Type 

func Type(data []byte) (string, error)

Type returns the message type of the given data.

Types

type DiscoverQuery 

type DiscoverQuery struct {
	EUI basicstation.EUI `json:"router"`
}

DiscoverQuery contains the unique identifier of the gateway. This message is sent by the gateway.

type DiscoverResponse 

type DiscoverResponse struct {
	EUI   basicstation.EUI `json:"router"`
	Muxs  basicstation.EUI `json:"muxs,omitempty"`
	URI   string           `json:"uri,omitempty"`
	Error string           `json:"error,omitempty"`
}

DiscoverResponse contains the response to the discover query. This message is sent by the Gateway Server.

type DownlinkMessage 

type DownlinkMessage struct {
	DevEUI      string  `json:"DevEui"`
	DeviceClass uint    `json:"dC"`
	Diid        int64   `json:"diid"`
	Pdu         string  `json:"pdu"`
	RxDelay     int     `json:"RxDelay"`
	Rx1DR       int     `json:"RX1DR"`
	Rx1Freq     int     `json:"RX1Freq"`
	Priority    int     `json:"priority"`
	XTime       int64   `json:"xtime"`
	RCtx        int64   `json:"rctx"`
	MuxTime     float64 `json:"MuxTime"`
}

DownlinkMessage is the LoRaWAN downlink message sent to the LoRa Basics Station.

func (*DownlinkMessage) ToDownlinkMessage 

func (dnmsg *DownlinkMessage) ToDownlinkMessage(bandID string) (*ttnpb.DownlinkMessage, error)

ToDownlinkMessage translates the LNS DownlinkMessage "dnmsg" to ttnpb.DownlinkMessage.

type JoinRequest 

type JoinRequest struct {
	MHdr     uint             `json:"MHdr"`
	JoinEUI  basicstation.EUI `json:"JoinEui"`
	DevEUI   basicstation.EUI `json:"DevEui"`
	DevNonce uint             `json:"DevNonce"`
	MIC      int32            `json:"MIC"`
	RefTime  float64          `json:"RefTime"`
	RadioMetaData
}

JoinRequest is the LoRaWAN Join Request message from LoRa Basics Station protocol.

func (*JoinRequest) FromUplinkMessage 

func (req *JoinRequest) FromUplinkMessage(up *ttnpb.UplinkMessage, bandID string) error

FromUplinkMessage extracts fields from ttnpb.UplinkMessage and creates the LoRa Basics Station Join Request Frame.

func (JoinRequest) MarshalJSON 

func (req JoinRequest) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler.

type MessageType 

type MessageType string

MessageType is the type of the message.

type RadioMetaData 

type RadioMetaData struct {
	DataRate  int    `json:"DR"`
	Frequency uint64 `json:"Freq"`
	UpInfo    UpInfo `json:"upinfo"`
}

RadioMetaData is a the metadata that is received as part of all upstream messages (except Tx Confirmation).

type TimeSyncRequest added in v3.16.0 

type TimeSyncRequest struct {
	TxTime float64 `json:"txtime"`
}

TimeSyncRequest is the time synchronization request from the BasicStation.

func (TimeSyncRequest) MarshalJSON added in v3.16.0 

func (tsr TimeSyncRequest) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler.

func (TimeSyncRequest) Response added in v3.16.0 

func (tsr TimeSyncRequest) Response(t time.Time) TimeSyncResponse

Response generates a TimeSyncResponse for this request.

type TimeSyncResponse added in v3.16.0 

type TimeSyncResponse struct {
	TxTime  float64 `json:"txtime,omitempty"`
	XTime   int64   `json:"xtime,omitempty"`
	GPSTime int64   `json:"gpstime"`
	MuxTime float64 `json:"MuxTime,omitempty"`
}

TimeSyncResponse is the time synchronization response to the BasicStation.

func (TimeSyncResponse) MarshalJSON added in v3.16.0 

func (tsr TimeSyncResponse) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler.

type TxConfirmation 

type TxConfirmation struct {
	Diid    int64            `json:"diid"`
	DevEUI  basicstation.EUI `json:"DevEui"`
	RCtx    int64            `json:"rctx"`
	XTime   int64            `json:"xtime"`
	TxTime  float64          `json:"txtime"`
	GPSTime int64            `json:"gpstime"`
}

TxConfirmation is the LoRaWAN Join Request message from the BasicStation.

func (TxConfirmation) MarshalJSON 

func (conf TxConfirmation) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler.

func (TxConfirmation) ToTxAck 

func (conf TxConfirmation) ToTxAck(ctx context.Context, tokens io.DownlinkTokens, receivedAt time.Time) *ttnpb.TxAcknowledgment

ToTxAck converts the LoRa Basics Station TxConfirmation message to ttnpb.TxAcknowledgment

type UpInfo 

type UpInfo struct {
	RxTime  float64 `json:"rxtime"`
	RCtx    int64   `json:"rtcx"`
	XTime   int64   `json:"xtime"`
	GPSTime int64   `json:"gpstime"`
	RSSI    float32 `json:"rssi"`
	SNR     float32 `json:"snr"`
}

UpInfo provides additional metadata on each upstream message.

type UplinkDataFrame 

type UplinkDataFrame struct {
	MHdr       uint    `json:"MHdr"`
	DevAddr    int32   `json:"DevAddr"`
	FCtrl      uint    `json:"FCtrl"`
	FCnt       uint    `json:"Fcnt"`
	FOpts      string  `json:"FOpts"`
	FPort      int     `json:"FPort"`
	FRMPayload string  `json:"FRMPayload"`
	MIC        int32   `json:"MIC"`
	RefTime    float64 `json:"RefTime"`
	RadioMetaData
}

UplinkDataFrame is the LoRaWAN Uplink message of the LoRa Basics Station protocol.

func (*UplinkDataFrame) FromUplinkMessage 

func (updf *UplinkDataFrame) FromUplinkMessage(up *ttnpb.UplinkMessage, bandID string) error

FromUplinkMessage extracts fields from ttnpb.UplinkMessage and creates the LoRa Basics Station UplinkDataFrame.

func (UplinkDataFrame) MarshalJSON 

func (updf UplinkDataFrame) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler.

type Version 

type Version struct {
	Station  string `json:"station"`
	Firmware string `json:"firmware"`
	Package  string `json:"package"`
	Model    string `json:"model"`
	Protocol int    `json:"protocol"`
	Features string `json:"features,omitempty"`
}

Version contains version information. This message is sent by the gateway.

func (Version) IsProduction 

func (v Version) IsProduction() bool

IsProduction checks the features field for "prod" and returns true if found. This is then used to set debug options in the router config.

func (Version) MarshalJSON 

func (v Version) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler.

Source Files

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