Lora.h

00001 /**   __  ___     ____  _    ______        __     ____         __                  ____
00002  *   /  |/  /_ __/ / /_(_)__/_  __/__ ____/ /    / __/_ _____ / /____ __ _  ___   /  _/__  ____
00003  *  / /|_/ / // / / __/ /___// / / -_) __/ _ \  _\ \/ // (_-</ __/ -_)  ' \(_-<  _/ // _ \/ __/  __
00004  * /_/  /_/\_,_/_/\__/_/    /_/  \__/\__/_//_/ /___/\_, /___/\__/\__/_/_/_/___/ /___/_//_/\__/  /_/
00005  * Copyright (C) 2015 by Multi-Tech Systems        /___/
00006  *
00007  *
00008  * @author Jason Reiss
00009  * @date   10-31-2015
00010  * @brief  lora namespace defines global settings, structures and enums for the lora library
00011  *
00012  * @details
00013  *
00014  *
00015  *
00016  */
00017 
00018 #ifndef __LORA_H__
00019 #define __LORA_H__
00020 
00021 #include "mbed.h"
00022 #include <assert.h>
00023 #include "MTSLog.h"
00024 //#include <cstring>
00025 #include <inttypes.h>
00026 
00027 namespace lora {
00028 
00029     /**
00030      * Frequency bandwidth of a Datarate, higher bandwidth gives higher datarate
00031      */
00032     enum Bandwidth {
00033         BW_125,
00034         BW_250,
00035         BW_500,
00036         BW_FSK = 50
00037     };
00038 
00039     /**
00040      * Spreading factor of a Datarate, lower spreading factor gives higher datarate
00041      */
00042     enum SpreadingFactors {
00043         SF_6 = 6,
00044         SF_7,
00045         SF_8,
00046         SF_9,
00047         SF_10,
00048         SF_11,
00049         SF_12,
00050         SF_FSK,
00051         SF_INVALID
00052     };
00053 
00054     /**
00055      * Datarates for use with ChannelPlan
00056      */
00057     enum Datarates {
00058         DR_0 = 0,
00059         DR_1,
00060         DR_2,
00061         DR_3,
00062         DR_4,
00063         DR_5,
00064         DR_6,
00065         DR_7,
00066         DR_8,
00067         DR_9,
00068         DR_10,
00069         DR_11,
00070         DR_12,
00071         DR_13,
00072         DR_14,
00073         DR_15
00074     };
00075 
00076     const uint8_t MIN_DATARATE = (uint8_t) DR_0;             //!< Minimum datarate
00077 
00078 
00079     const uint8_t MAX_PHY_PACKET_SIZE = 255;                    //!< Maximum size for a packet
00080     const uint8_t MAX_APPS = 8;                                 //!< Maximum number of apps sessions to save
00081     const uint8_t MAX_MULTICAST_SESSIONS = 8;                   //!< Maximum number of multicast sessions to save
00082     const uint8_t EUI_SIZE = 8;                                 //!< Number of bytes in an EUI
00083     const uint8_t KEY_SIZE = 16;                                //!< Number of bytes in an AES key
00084 
00085     const uint8_t DEFAULT_NUM_CHANNELS = 16;                    //!< Default number of channels in a plan
00086     const uint8_t DEFAULT_RX1_DR_OFFSET = 0;                    //!< Default datarate offset for first rx window
00087     const uint8_t DEFAULT_RX2_DATARATE = 0;                     //!< Default datarate for second rx window
00088     const uint8_t DEFAULT_TX_POWER = 14;                        //!< Default transmit power
00089     const uint8_t DEFAULT_CODE_RATE = 1;                        //!< Default coding rate 1:4/5, 2:4/6, 3:4/7, 4:4/8
00090     const uint8_t DEFAULT_PREAMBLE_LEN = 8;                     //!< Default preamble length
00091 
00092     const int32_t MAX_FCNT_GAP = 16384;                         //!< Maximum allowed gap in sequence numbers before roll-over
00093 
00094     const uint16_t PRIVATE_JOIN_DELAY = 1000;                   //!< Default join delay used for private network
00095     const uint16_t PUBLIC_JOIN_DELAY = 5000;                    //!< Default join delay used for public network
00096     const uint16_t DEFAULT_JOIN_DELAY = PRIVATE_JOIN_DELAY;     //!< Default join delay1
00097     const uint16_t DEFAULT_RX_DELAY = 1000;                     //!< Default delay for first receive window
00098     const uint16_t DEFAULT_RX_TIMEOUT = 3000;                   //!< Default timeout for receive windows
00099 
00100     const uint8_t HI_DR_SYMBOL_TIMEOUT = 12;                    //!< Symbol timeout for receive at datarate with SF < 11
00101     const uint8_t LO_DR_SYMBOL_TIMEOUT = 8;                     //!< Symbol timeout for receive at datarate with SF > 10
00102 
00103     const uint16_t RX2_DELAY_OFFSET = 1000;                     //!< Delay between first and second window
00104     const uint16_t RXC_OFFSET = 50;                             //!< Time between end of RXC after TX and RX1
00105 
00106     const uint8_t US915_125K_NUM_CHANS = 64;                    //!< Number of 125k channels in US915 channel plan
00107     const uint8_t US915_500K_NUM_CHANS = 8;                     //!< Number of 500k channels in US915 channel plan
00108 
00109     const uint32_t US915_125K_FREQ_BASE = 902300000;            //!< Frequency base for 125k US915 uplink channels
00110     const uint32_t US915_125K_FREQ_STEP = 200000;               //!< Frequency step for 125k US915 uplink channels
00111 
00112     const uint32_t US915_500K_FREQ_BASE = 903000000;            //!< Frequency base for 500k US915 uplink channels
00113     const uint32_t US915_500K_FREQ_STEP = 1600000;              //!< Frequency step for 500k US915 uplink channels
00114 
00115     const uint32_t US915_500K_DBASE = 923300000;                //!< Frequency base for 500k US915 downlink channels
00116     const uint32_t US915_500K_DSTEP = 600000;                   //!< Frequency step for 500k US915 downlink channels
00117 
00118     const uint32_t US915_FREQ_MIN = 902000000;
00119     const uint32_t US915_FREQ_MAX = 928000000;
00120 
00121     const uint8_t US915_MIN_DATARATE = (uint8_t) DR_0;       //!< Minimum transmit datarate for US915
00122     const uint8_t US915_MAX_DATARATE = (uint8_t) DR_4;       //!< Maximum transmit datarate for US915
00123 
00124     const uint8_t US915_MIN_DATARATE_OFFSET = (uint8_t) 0;       //!< Minimum transmit datarate for US915
00125     const uint8_t US915_MAX_DATARATE_OFFSET = (uint8_t) 3;       //!< Maximum transmit datarate for US915
00126 
00127     const uint8_t AU915_125K_NUM_CHANS = 64;                    //!< Number of 125k channels in AU915 channel plan
00128     const uint8_t AU915_500K_NUM_CHANS = 8;                     //!< Number of 500k channels in AU915 channel plan
00129 
00130     const uint32_t AU915_125K_FREQ_BASE = 915200000;            //!< Frequency base for 125k AU915 uplink channels
00131     const uint32_t AU915_125K_FREQ_STEP = 200000;               //!< Frequency step for 125k AU915 uplink channels
00132 
00133     const uint32_t AU915_500K_FREQ_BASE = 915900000;            //!< Frequency base for 500k AU915 uplink channels
00134     const uint32_t AU915_500K_FREQ_STEP = 1600000;              //!< Frequency step for 500k AU915 uplink channels
00135 
00136     const uint32_t AU915_500K_DBASE = 923300000;                //!< Frequency base for 500k AU915 downlink channels
00137     const uint32_t AU915_500K_DSTEP = 600000;                   //!< Frequency step for 500k AU915 downlink channels
00138 
00139     const uint32_t AU915_FREQ_MIN = 915000000;
00140     const uint32_t AU915_FREQ_MAX = 928000000;
00141 
00142     const uint8_t AU915_MIN_DATARATE = (uint8_t) DR_0;       //!< Minimum transmit datarate for AU915
00143     const uint8_t AU915_MAX_DATARATE = (uint8_t) DR_4;       //!< Maximum transmit datarate for AU915
00144 
00145     const uint8_t AU915_MIN_DATARATE_OFFSET = (uint8_t) 0;       //!< Minimum transmit datarate for AU915
00146     const uint8_t AU915_MAX_DATARATE_OFFSET = (uint8_t) 3;       //!< Maximum transmit datarate for AU915
00147 
00148     const uint8_t EU868_125K_NUM_CHANS = 16;                    //!< Number of 125k channels in EU868 channel plan
00149     const uint8_t EU868_DEFAULT_NUM_CHANS = 3;                  //!< Number of defualt channels in EU868 channel plan
00150     const uint32_t EU868_125K_FREQ_BASE = 868100000;            //!< Frequency base for 125k EU868 uplink channels
00151     const uint32_t EU868_125K_FREQ_STEP = 200000;               //!< Frequency step for 125k EU868 uplink channels
00152     const uint32_t EU868_RX2_FREQ = 869525000;                  //!< Frequency default for second rx window in EU868
00153 
00154     const uint8_t EU868_TX_POWER_MAX = 14;                      //!< Max power for EU868 channel plan
00155 
00156     // 0.1% duty cycle 863-868
00157     // Limiting to 865-868 allows for 1% duty cycle
00158     const uint32_t EU868_MILLI_FREQ_MIN = 865000000;
00159     const uint32_t EU868_MILLI_FREQ_MAX = 868000000;
00160 
00161     const uint32_t EU868_MILLI_1_FREQ_MIN = 868700000;
00162     const uint32_t EU868_MILLI_1_FREQ_MAX = 869200000;
00163 
00164     // 1% duty cycle
00165     const uint32_t EU868_CENTI_FREQ_MIN = 868000000;
00166     const uint32_t EU868_CENTI_FREQ_MAX = 868600000;
00167 
00168     // 10% duty cycle
00169     const uint32_t EU868_DECI_FREQ_MIN = 869400000;
00170     const uint32_t EU868_DECI_FREQ_MAX = 869650000;
00171 
00172     // Below 7dBm there is no duty cycle for these frequencies
00173     // Up to 14dBm there is 1% duty cycle
00174     const uint32_t EU868_VAR_FREQ_MIN = 869700000;
00175     const uint32_t EU868_VAR_FREQ_MAX = 870000000;
00176 
00177     const uint32_t EU868_FREQ_MIN = 863000000;
00178     const uint32_t EU868_FREQ_MAX = 870000000;
00179 
00180     const uint8_t EU868_MIN_DATARATE = (uint8_t) DR_0;       //!< Minimum transmit datarate for EU868
00181     const uint8_t EU868_MAX_DATARATE = (uint8_t) DR_7;       //!< Maximum transmit datarate for EU868
00182 
00183     const uint8_t EU868_MIN_DATARATE_OFFSET = (uint8_t) 0;       //!< Minimum transmit datarate for US915
00184     const uint8_t EU868_MAX_DATARATE_OFFSET = (uint8_t) 5;       //!< Maximum transmit datarate for US915
00185 
00186     const int16_t DEFAULT_FREE_CHAN_RSSI_THRESHOLD = -90;       //!< Threshold for channel activity detection (CAD) dBm
00187 
00188     const uint8_t CHAN_MASK_SIZE = 16;                          //!< Number of bits in a channel mask
00189     const uint8_t COMMANDS_BUFFER_SIZE = 15;                    //!< Size of Mac Command buffer
00190 
00191     const uint8_t PKT_HEADER = 0;                               //!< Index to packet mHdr field
00192     const uint8_t PKT_ADDRESS = 1;                              //!< Index to first byte of packet address field
00193     const uint8_t PKT_FRAME_CONTROL = PKT_ADDRESS + 4;          //!< Index to packet fCtrl field @see UplinkControl
00194     const uint8_t PKT_FRAME_COUNTER = PKT_FRAME_CONTROL + 1;    //!< Index to packet frame counter field
00195     const uint8_t PKT_OPTIONS_START = PKT_FRAME_COUNTER + 2;    //!< Index to start of optional mac commands
00196 
00197     const uint8_t PKT_JOIN_APP_NONCE = 1;                       //!< Index to application nonce in Join Accept message
00198     const uint8_t PKT_JOIN_NETWORK_ID = 4;                      //!< Index to network id in Join Accept message
00199     const uint8_t PKT_JOIN_NETWORK_ADDRESS = 7;                 //!< Index to network address in Join Accept message
00200     const uint8_t PKT_JOIN_DL_SETTINGS = 11;                    //!< Index to downlink settings in Join Accept message
00201     const uint8_t PKT_JOIN_RX_DELAY = 12;                       //!< Index to rx delay in Join Accept message
00202 
00203     const uint8_t ADR_ACK_LIMIT = 64;                           //!< Number of packets without ADR ACK Request
00204     const uint8_t ADR_ACK_DELAY = 32;                           //!< Number of packets to expect ADR ACK Response within
00205 
00206     const uint16_t ACK_TIMEOUT = 2000;                          //!< Base millisecond timeout to resend after missed ACK
00207     const uint16_t ACK_TIMEOUT_RND = 1000;                      //!< Random millisecond adjustment to resend after missed ACK
00208 
00209     const uint8_t FRAME_OVERHEAD = 13;                          //!< Bytes of network info overhead in a frame
00210 
00211     /**
00212      * Settings to choose ChannelPlan
00213      */
00214     enum FrequencyBand {
00215         EU868,      //!< EU 863-870 16 channel uplink
00216         US915,      //!< US 902-928 64-125k/8-500k uplink and 8-500k downlink channels
00217         AU915,      //!< US 915-928 64-125k/8-500k uplink and 8-500k downlink channels
00218         CN779,      //!<
00219         CN470,      //!<
00220         EU433,      //!<
00221     };
00222 
00223     /**
00224      * Settings for type of network
00225      * PUBLIC - defaults to 5/6 second join windows and 0x34 sync word
00226      * PRIVATE - defaults to 1/2 second join windows and 0x12 sync word
00227      */
00228     enum NetworkType {
00229         PRIVATE = 0,
00230         PUBLIC = 1,
00231         PEER_TO_PEER = 4
00232     };
00233 
00234     /**
00235      * Enum for on/off settings
00236      */
00237     enum Enabled {
00238         OFF = 0,
00239         ON = 1
00240     };
00241 
00242     /**
00243      * Return status of mac functions
00244      */
00245     enum MacStatus {
00246         LORA_OK = 0,
00247         LORA_ERROR = 1,
00248         LORA_JOIN_ERROR = 2,
00249         LORA_SEND_ERROR = 3,
00250         LORA_MIC_ERROR = 4,
00251         LORA_ADDRESS_ERROR = 5,
00252         LORA_NO_CHANS_ENABLED = 6,
00253         LORA_COMMAND_BUFFER_FULL = 7,
00254         LORA_UNKNOWN_MAC_COMMAND = 8,
00255         LORA_ADR_OFF = 9,
00256         LORA_BUSY = 10,
00257         LORA_LINK_BUSY = 11,
00258         LORA_RADIO_BUSY = 12,
00259         LORA_BUFFER_FULL = 13,
00260         LORA_JOIN_BACKOFF = 14,
00261         LORA_NO_FREE_CHAN = 15,
00262         LORA_AGGREGATED_DUTY_CYCLE = 16,
00263         LORA_MAC_COMMAND_ERROR = 17,
00264         LORA_MAX_PAYLOAD_EXCEEDED = 18,
00265         LORA_LBT_CHANNEL_BUSY = 19
00266     };
00267 
00268     /**
00269      * State for Link
00270      */
00271     enum LinkState {
00272         LINK_IDLE = 0,  //!< Link ready to send or receive
00273         LINK_TX,        //!< Link is busy sending
00274         LINK_ACK_TX,    //!< Link is busy resending after missed ACK
00275         LINK_REP_TX,    //!< Link is busy repeating
00276         LINK_RX,        //!< Link has receive window open
00277         LINK_RX1,       //!< Link has first received window open
00278         LINK_RX2,       //!< Link has second received window open
00279         LINK_RXC,       //!< Link has class C received window open
00280         LINK_P2P,       //!< Link is busy sending
00281     };
00282 
00283     /**
00284      * State for MAC
00285      */
00286     enum MacState {
00287         MAC_IDLE,
00288         MAC_RX1,
00289         MAC_RX2,
00290         MAC_RXC,
00291         MAC_TX,
00292         MAC_JOIN
00293     };
00294 
00295     /**
00296      * Operation class for device
00297      */
00298     enum MoteClass {
00299         CLASS_A = 0x00, //!< Device can only receive in windows opened after a transmit
00300         CLASS_B = 0x01, //!< Device can receive in windows sychronized with gateway beacon
00301         CLASS_C = 0x02  //!< Device can receive any time when not transmitting
00302     };
00303 
00304     /**
00305      * Direction of a packet
00306      */
00307     enum Direction {
00308         DIR_UP = 0,     //!< Packet is sent from mote to gateway
00309         DIR_DOWN = 1,   //!< Packet was received from gateway
00310         DIR_PEER = 2    //!< Packet was received from peer
00311     };
00312 
00313 
00314     /**
00315      * Received window used by Link
00316      */
00317     enum ReceiveWindows {
00318         RX_1 = 1,           //!< First receive window
00319         RX_2,               //!< Second receive window
00320         RX_BEACON,          //!< Beacon receive window
00321         RX_SLOT,             //!< Beacon Slot receive window
00322         RX_TEST
00323     };
00324 
00325     /**
00326      * Datarate range for a Channel
00327      */
00328     typedef union {
00329             int8_t Value;
00330             struct {
00331                     int8_t Min :4;
00332                     int8_t Max :4;
00333             } Fields;
00334     } DatarateRange;
00335 
00336     /**
00337      * Datarate used for transmitting and receiving
00338      */
00339     typedef struct Datarate {
00340             uint8_t Index;
00341             uint8_t Bandwidth;
00342             uint8_t Coderate;
00343             uint8_t PreambleLength;
00344             uint8_t SpreadingFactor;
00345             uint8_t Crc;
00346             uint8_t TxIQ;
00347             uint8_t RxIQ;
00348             uint8_t SymbolTimeout();
00349             Datarate();
00350     } Datarate;
00351 
00352     /**
00353      * Channel used for transmitting
00354      */
00355     typedef struct {
00356             uint8_t Index;
00357             uint32_t Frequency;
00358             DatarateRange DrRange;
00359     } Channel;
00360 
00361     /**
00362      * Receive window
00363      */
00364     typedef struct {
00365             uint8_t Index;
00366             uint32_t Frequency;
00367             uint8_t DatarateIndex;
00368     } RxWindow;
00369 
00370     /**
00371      * Duty band for limiting time-on-air for regional regulations
00372      */
00373     typedef struct {
00374             uint8_t Index;
00375             uint32_t FrequencyMin;
00376             uint32_t FrequencyMax;
00377             uint8_t PowerMax;
00378             uint16_t DutyCycle;          //!< Multiplier of time on air, 0:100%, 1:50%, 2:33%, 10:10%, 100:1%, 1000,0.1%
00379             uint32_t TimeOffEnd;         //!< Timestamp when this band will be available
00380     } DutyBand;
00381 
00382     /**
00383      * Device configuration
00384      */
00385     typedef struct {
00386             uint8_t FrequencyBand;      //!< Used to choose ChannelPlan
00387             uint8_t EUI[8];             //!< Unique identifier assigned to device
00388     } DeviceConfig;
00389 
00390     /**
00391      * Network configuration
00392      */
00393     typedef struct {
00394             uint8_t Mode;               //!< PUBLIC, PRIVATE or PEER_TO_PEER network mode
00395             uint8_t Class;              //!< Operating class of device
00396             uint8_t EUI[8];             //!< Network ID or AppEUI
00397             uint8_t Key[16];            //!< Network Key or AppKey
00398             uint8_t JoinDelay;          //!< Number of seconds to wait before 1st RX Window
00399             uint8_t RxDelay;            //!< Number of seconds to wait before 1st RX Window
00400             uint8_t ChannelGroup;       //!< ChannelGroup used for US915 hybrid operation 0:72 channels, 1:1-8 channels ...
00401             uint8_t AckAttempts;        //!< Number of attempts to send packet and receive an ACK from server
00402             uint8_t Retries;            //!< Number of times to resend a packet without receiving an ACK, redundancy
00403             uint8_t ADREnabled;         //!< Enable adaptive datarate
00404             uint8_t CADEnabled;         //!< Enable listen before talk/channel activity detection
00405             uint8_t RepeaterMode;       //!< Limit payloads to repeater compatible sizes
00406             uint8_t TxPower;            //!< Default radio output power in dBm
00407             uint8_t TxPowerMax;         //!< Max transmit power
00408             uint8_t TxDatarate;         //!< Datarate for P2P transmit
00409             uint32_t TxFrequency;       //!< Frequency for P2P transmit
00410             int8_t AntennaGain;         //!< Antenna Gain
00411             uint8_t DisableEncryption;  //!< Disable Encryption
00412             uint8_t DisableCRC;        //!< Disable CRC on uplink packets
00413             uint16_t P2PACKTimeout;
00414             uint16_t P2PACKBackoff;
00415             uint8_t JoinRx1DatarateOffset;  //!< Offset for datarate for first window
00416             uint32_t JoinRx2Frequency;      //!< Frequency used in second window
00417             uint8_t JoinRx2DatarateIndex;   //!< Datarate for second window
00418     } NetworkConfig;
00419 
00420     /**
00421      * Network session info
00422      * Some settings are acquired in join message and others may be changed through Mac Commands from server
00423      */
00424     typedef struct {
00425             uint8_t Joined;                     //!< State of session
00426             uint8_t Rx1DatarateOffset;          //!< Offset for datarate for first window
00427             uint32_t Rx2Frequency;              //!< Frequency used in second window
00428             uint8_t Rx2DatarateIndex;           //!< Datarate for second window
00429             uint8_t TxPower;                    //!< Current total radiated output power in dBm
00430             uint8_t TxDatarate;                 //!< Current datarate can be changed when ADR is enabled
00431             uint32_t Address;                   //!< Network address
00432             uint32_t NetworkID;                 //!< Network ID 24-bits
00433             uint8_t NetworkSessionKey[16];      //!< Network session key
00434             uint8_t ApplicationSessionKey[16];  //!< Data session key
00435             uint16_t ChannelMask[4];            //!< Current channel mask
00436             uint16_t ChannelMask500k;           //!< Current channel mask for 500k channels
00437             uint32_t DownlinkCounter;           //!< Downlink counter of last packet received from server
00438             uint32_t UplinkCounter;             //!< Uplink counter of last packet received from server
00439             uint8_t Redundancy;                 //!< Number of time to repeat an uplink
00440             uint8_t MaxDutyCycle;               //!< Current Max Duty Cycle value
00441             uint32_t JoinTimeOnAir;              //!< Balance of time on air used during join attempts
00442             uint32_t JoinTimeOffEnd;            //!< RTC time of next join attempt
00443             uint32_t JoinFirstAttempt;          //!< RTC time of first failed join attempt
00444             uint32_t AggregatedTimeOffEnd;      //!< Time off air expiration for aggregate duty cycle
00445             uint16_t AggregateDutyCycle;        //!< Used for enforcing time-on-air
00446             uint8_t AckCounter;                 //!< Current number of packets sent without ACK from server
00447             uint8_t AdrCounter;                 //!< Current number of packets received without downlink from server
00448             uint8_t RxDelay;                    //!< Number of seconds to wait before 1st RX Window
00449             uint8_t CommandBuffer[COMMANDS_BUFFER_SIZE]; //!< Buffer to hold Mac Commands and parameters to be sent in next packet
00450             uint8_t CommandBufferIndex;         //!< Index to place next Mac Command, also current size of Command Buffer
00451             bool SrvRequestedAck;               //!< Indicator of ACK requested by server in last packet received
00452             bool DataPending;                   //!< Indicator of data pending at server
00453             uint8_t RxTimingSetupReqReceived;   //!< Indicator that RxTimingSetupAns should be included in uplink
00454             uint8_t RxParamSetupReqAnswer;      //!< Indicator that RxParamSetupAns should be included in uplink
00455             uint8_t DlChannelReqAnswer;         //!< Indicator that DlChannelAns should be included in uplink
00456             uint8_t DownlinkDwelltime;          //!< On air dwell time for downlink packets 0:NONE,1:400ms
00457             uint8_t UplinkDwelltime;            //!< On air dwell time for uplink packets 0:NONE,1:400ms
00458             uint8_t Max_EIRP;                   //!< Maximum allowed EIRP for uplink
00459     } NetworkSession;
00460 
00461     /**
00462      * Multicast session info
00463      */
00464     typedef struct {
00465             uint32_t Address;               //!< Network address
00466             uint8_t NetworkSessionKey[16];  //!< Network session key
00467             uint8_t DataSessionKey[16];     //!< Data session key
00468             uint32_t DownlinkCounter;       //!< Downlink counter of last packet received from server
00469     } MulticastSession;
00470 
00471     /**
00472      * Application configuration
00473      */
00474     typedef struct {
00475             uint8_t Port;                   //!< Port used by application
00476             uint8_t AppEUI;                 //!< Application ID
00477             uint8_t AppKey[16];             //!< Application Key
00478     } ApplicationConfig;
00479 
00480     /**
00481      * Statistics of current network session
00482      */
00483     typedef struct Statistics {
00484             uint32_t Up;                    //!< Number of uplink packets sent
00485             uint32_t Down;                  //!< Number of downlink packets received
00486             uint32_t Joins;                 //!< Number of join requests sent
00487             uint32_t JoinFails;             //!< Number of join requests without response or invalid response
00488             uint32_t MissedAcks;            //!< Number of missed acknowledgement attempts of confirmed packets
00489             uint32_t CRCErrors;             //!< Number of CRC errors in received packets
00490             int32_t AvgCount;              //!< Number of packets used to compute rolling average of RSSI and SNR
00491             int16_t Rssi;                   //!< RSSI of last packet received
00492             int16_t RssiMin;                //!< Minimum RSSI of last AvgCount packets
00493             int16_t RssiMax;                //!< Maximum RSSI of last AvgCount packets
00494             int16_t RssiAvg;                //!< Rolling average RSSI of last AvgCount packets
00495             int16_t Snr;                     //!< SNR of last packet received
00496             int16_t SnrMin;                  //!< Minimum SNR of last AvgCount packets
00497             int16_t SnrMax;                  //!< Maximum SNR of last AvgCount packets
00498             int16_t SnrAvg;                  //!< Rolling average SNR of last AvgCount packets
00499     } Statistics;
00500 
00501     /**
00502      *  Testing settings
00503      */
00504     typedef struct {
00505             uint8_t TestMode;
00506             uint8_t SkipMICCheck;
00507             uint8_t DisableDutyCycle;
00508             uint8_t DisableRx1;
00509             uint8_t DisableRx2;
00510             uint8_t FixedUplinkCounter;
00511             uint8_t DisableRandomJoinDatarate;
00512     } Testing;
00513 
00514     /**
00515      * Combination of device, network, testing settings and statistics
00516      */
00517     typedef struct {
00518             DeviceConfig Device;
00519             NetworkConfig Network;
00520             NetworkSession Session;
00521             ApplicationConfig Applications[MAX_APPS];
00522             MulticastSession Multicast[MAX_MULTICAST_SESSIONS];
00523             Statistics Stats;
00524             Testing Test;
00525     } Settings;
00526 
00527     /**
00528      * Downlink settings sent in Join Accept message
00529      */
00530     typedef union {
00531             uint8_t Value;
00532             struct {
00533                     uint8_t Rx2Datarate :4;
00534                     uint8_t Rx1Offset :3;
00535                     uint8_t RFU :1;
00536             };
00537     } DownlinkSettings;
00538 
00539     /**
00540      * Frame structure for Join Request
00541      */
00542     typedef struct {
00543             uint8_t Type;
00544             uint8_t AppEUI[8];
00545             uint8_t DevEUI[8];
00546             uint8_t Nonce[2];
00547             uint8_t MIC[4];
00548     } JoinRequestFrame;
00549 
00550     /**
00551      * Mac header of uplink and downlink packets
00552      */
00553     typedef union {
00554             uint8_t Value;
00555             struct {
00556                     uint8_t Major :2;
00557                     uint8_t RFU :3;
00558                     uint8_t MType :3;
00559             } Bits;
00560     } MacHeader;
00561 
00562     /**
00563      * Frame control field of uplink packets
00564      */
00565     typedef union {
00566             uint8_t Value;
00567             struct {
00568                     uint8_t OptionsLength :4;
00569                     uint8_t ClassB :1;
00570                     uint8_t Ack :1;
00571                     uint8_t AdrAckReq :1;
00572                     uint8_t Adr :1;
00573             } Bits;
00574     } UplinkControl;
00575 
00576     /**
00577      * Frame control field of downlink packets
00578      */
00579     typedef union {
00580             uint8_t Value;
00581             struct {
00582                     uint8_t OptionsLength :4;
00583                     uint8_t FPending :1;
00584                     uint8_t Ack :1;
00585                     uint8_t RFU :1;
00586                     uint8_t Adr :1;
00587             } Bits;
00588     } DownlinkControl;
00589 
00590     /**
00591      * Frame type of packet
00592      */
00593     typedef enum {
00594         FRAME_TYPE_JOIN_REQ = 0x00,
00595         FRAME_TYPE_JOIN_ACCEPT = 0x01,
00596         FRAME_TYPE_DATA_UNCONFIRMED_UP = 0x02,
00597         FRAME_TYPE_DATA_UNCONFIRMED_DOWN = 0x03,
00598         FRAME_TYPE_DATA_CONFIRMED_UP = 0x04,
00599         FRAME_TYPE_DATA_CONFIRMED_DOWN = 0x05,
00600         FRAME_TYPE_RFU = 0x06,
00601         FRAME_TYPE_PROPRIETARY = 0x07,
00602     } FrameType;
00603 
00604     /**
00605      * LoRaWAN mote MAC commands
00606      */
00607     typedef enum {
00608         /* Class A */
00609         MOTE_MAC_LINK_CHECK_REQ = 0x02,
00610         MOTE_MAC_LINK_ADR_ANS = 0x03,
00611         MOTE_MAC_DUTY_CYCLE_ANS = 0x04,
00612         MOTE_MAC_RX_PARAM_SETUP_ANS = 0x05,
00613         MOTE_MAC_DEV_STATUS_ANS = 0x06,
00614         MOTE_MAC_NEW_CHANNEL_ANS = 0x07,
00615         MOTE_MAC_RX_TIMING_SETUP_ANS = 0x08,
00616         MOTE_MAC_TX_PARAM_SETUP_ANS = 0x09,
00617         MOTE_MAC_DL_CHANNEL_ANS = 0x0A,
00618 
00619         /* Class B */
00620         MOTE_MAC_PING_SLOT_INFO_REQ = 0x0B,
00621         MOTE_MAC_PING_SLOT_FREQ_ANS = 0x0C,
00622         MOTE_MAC_PING_SLOT_CHANNEL_ANS = 0x0D,
00623         MOTE_MAC_BEACON_TIMING_REQ = 0x0E,
00624         MOTE_MAC_BEACON_FREQ_ANS = 0x0F,
00625 
00626         /* Multitech */
00627         MOTE_MAC_PING_REQ = 0x80,
00628         MOTE_MAC_CHANGE_CLASS = 0x81,
00629         MOTE_MAC_MULTIPART_START_REQ = 0x82,
00630         MOTE_MAC_MULTIPART_START_ANS = 0x83,
00631         MOTE_MAC_MULTIPART_CHUNK = 0x84,
00632         MOTE_MAC_MULTIPART_END_REQ = 0x85,
00633         MOTE_MAC_MULTIPART_END_ANS = 0x86
00634     } MoteCommand;
00635 
00636     /*!
00637      * LoRaWAN server MAC commands
00638      */
00639     typedef enum {
00640         /* Class A */
00641         SRV_MAC_LINK_CHECK_ANS = 0x02,
00642         SRV_MAC_LINK_ADR_REQ = 0x03,
00643         SRV_MAC_DUTY_CYCLE_REQ = 0x04,
00644         SRV_MAC_RX_PARAM_SETUP_REQ = 0x05,
00645         SRV_MAC_DEV_STATUS_REQ = 0x06,
00646         SRV_MAC_NEW_CHANNEL_REQ = 0x07,
00647         SRV_MAC_RX_TIMING_SETUP_REQ = 0x08,
00648         SRV_MAC_TX_PARAM_SETUP_REQ = 0x09,
00649         SRV_MAC_DL_CHANNEL_REQ = 0x0A,
00650 
00651         /* Class B */
00652         SRV_MAC_PING_SLOT_INFO_ANS = 0x0B,
00653         SRV_MAC_PING_SLOT_FREQ_REQ = 0x0C,
00654         SRV_MAC_PING_SLOT_CHANNEL_REQ = 0x0D,
00655         SRV_MAC_BEACON_TIMING_ANS = 0x0E,
00656         SRV_MAC_BEACON_FREQ_REQ = 0x0F,
00657 
00658         /* Multitech */
00659         SRV_MAC_PING_ANS = 0x80,
00660         SRV_MAC_CHANGE_CLASS = 0x81,
00661         SRV_MAC_MULTIPART_START_REQ = 0x82,
00662         SRV_MAC_MULTIPART_START_ANS = 0x83,
00663         SRV_MAC_MULTIPART_CHUNK = 0x84,
00664         SRV_MAC_MULTIPART_END_REQ = 0x85,
00665         SRV_MAC_MULTIPART_END_ANS = 0x86
00666     } ServerCommand;
00667 
00668     /**
00669      * Random seed for software RNG
00670      */
00671     void srand(uint32_t seed);
00672 
00673     /**
00674      * Software RNG for consistent results across differing hardware
00675      */
00676     int rand(void);
00677 
00678     /**
00679      * Generate random number bounded by min and max
00680      */
00681     int32_t rand_r(int32_t min, int32_t max);
00682 
00683     uint8_t CountBits(uint16_t mask);
00684 
00685     /**
00686      * Copy 3-bytes network order from array into LSB of integer value
00687      */
00688     void CopyNetIDtoInt(const uint8_t* arr, uint32_t& val);
00689 
00690     /**
00691      * Copy LSB 3-bytes from integer value into array network order
00692      */
00693     void CopyNetIDtoArray(uint32_t val, uint8_t* arr);
00694 
00695     /**
00696      * Copy 4-bytes network order from array in to integer value
00697      */
00698     void CopyAddrtoInt(const uint8_t* arr, uint32_t& val);
00699 
00700     /**
00701      * Copy 4-bytes from integer in to array network order
00702      */
00703     void CopyAddrtoArray(uint32_t val, uint8_t* arr);
00704 
00705     /**
00706      * Copy 3-bytes network order from array into integer value and multiply by 100
00707      */
00708     void CopyFreqtoInt(const uint8_t* arr, uint32_t& freq);
00709 
00710     /**
00711      * Reverse memory copy
00712      */
00713     void memcpy_r(uint8_t *dst, const uint8_t *src, size_t n);
00714 
00715 }
00716 
00717 #endif
00718 
00719