Simplified LoRaWAN library.
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Diff: LoRaMac-api-v3.h
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diff -r 91e4e6c60d1e -r 14a5d6ad92d5 LoRaMac-api-v3.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LoRaMac-api-v3.h Tue Jan 05 16:41:54 2016 +0000 @@ -0,0 +1,463 @@ +/*! + * \file LoRaMac-api-v3.h + * + * \brief LoRa MAC wrapper layer implementation + * + * \copyright Revised BSD License, see section \ref LICENSE. + * + * \code + * ______ _ + * / _____) _ | | + * ( (____ _____ ____ _| |_ _____ ____| |__ + * \____ \| ___ | (_ _) ___ |/ ___) _ \ + * _____) ) ____| | | || |_| ____( (___| | | | + * (______/|_____)_|_|_| \__)_____)\____)_| |_| + * (C)2013 Semtech + * + * ___ _____ _ ___ _ _____ ___ ___ ___ ___ + * / __|_ _/_\ / __| |/ / __/ _ \| _ \/ __| __| + * \__ \ | |/ _ \ (__| ' <| _| (_) | / (__| _| + * |___/ |_/_/ \_\___|_|\_\_| \___/|_|_\\___|___| + * embedded.connectivity.solutions=============== + * + * \endcode + * + * \author Miguel Luis ( Semtech ) + * + * \author Gregory Cristian ( Semtech ) + * + * \author Daniel Jäckle ( STACKFORCE ) + */ +#ifndef __LORAMAC_API_V3_H__ +#define __LORAMAC_API_V3_H__ + +// Includes board dependent definitions such as channels frequencies +#include "LoRaMac.h" +#include "LoRaMac-board.h" + +/*! + * Beacon interval in us + */ +#define BEACON_INTERVAL 128000000 + +/*! + * Class A&B receive delay in us + */ +#define RECEIVE_DELAY1 1000000 +#define RECEIVE_DELAY2 2000000 + +/*! + * Join accept receive delay in us + */ +#define JOIN_ACCEPT_DELAY1 5000000 +#define JOIN_ACCEPT_DELAY2 6000000 + +/*! + * Class A&B maximum receive window delay in us + */ +#define MAX_RX_WINDOW 3000000 + +/*! + * Maximum allowed gap for the FCNT field + */ +#define MAX_FCNT_GAP 16384 + +/*! + * ADR acknowledgement counter limit + */ +#define ADR_ACK_LIMIT 64 + +/*! + * Number of ADR acknowledgement requests before returning to default datarate + */ +#define ADR_ACK_DELAY 32 + +/*! + * Number of seconds after the start of the second reception window without + * receiving an acknowledge. + * AckTimeout = ACK_TIMEOUT + Random( -ACK_TIMEOUT_RND, ACK_TIMEOUT_RND ) + */ +#define ACK_TIMEOUT 2000000 + +/*! + * Random number of seconds after the start of the second reception window without + * receiving an acknowledge + * AckTimeout = ACK_TIMEOUT + Random( -ACK_TIMEOUT_RND, ACK_TIMEOUT_RND ) + */ +#define ACK_TIMEOUT_RND 1000000 + +/*! + * Check the Mac layer state every MAC_STATE_CHECK_TIMEOUT + */ +#define MAC_STATE_CHECK_TIMEOUT 1000000 + +/*! + * Maximum number of times the MAC layer tries to get an acknowledge. + */ +#define MAX_ACK_RETRIES 8 + +/*! + * RSSI free threshold + */ +#define RSSI_FREE_TH ( int8_t )( -90 ) // [dBm] + +/*! + * Frame direction definition + */ +#define UP_LINK 0 +#define DOWN_LINK 1 + +/*! + * Sets the length of the LoRaMAC footer field. + * Mainly indicates the MIC field length + */ +#define LORAMAC_MFR_LEN 4 + +/*! + * Syncword for Private LoRa networks + */ +#define LORA_MAC_PRIVATE_SYNCWORD 0x12 + +/*! + * Syncword for Public LoRa networks + */ +#define LORA_MAC_PUBLIC_SYNCWORD 0x34 + +/*! + * LoRaMAC event flags + */ +typedef union +{ + uint8_t Value; + struct + { + uint8_t Tx : 1; + uint8_t Rx : 1; + uint8_t RxData : 1; + uint8_t Multicast : 1; + uint8_t RxSlot : 2; + uint8_t LinkCheck : 1; + uint8_t JoinAccept : 1; + }Bits; +}LoRaMacEventFlags_t; + +/*! + * LoRaMAC event information + */ +typedef struct +{ + LoRaMacEventInfoStatus_t Status; + bool TxAckReceived; + uint8_t TxNbRetries; + uint8_t TxDatarate; + uint8_t RxPort; + uint8_t *RxBuffer; + uint8_t RxBufferSize; + int16_t RxRssi; + uint8_t RxSnr; + uint16_t Energy; + uint8_t DemodMargin; + uint8_t NbGateways; +}LoRaMacEventInfo_t; + +/*! + * LoRaMAC events structure + * Used to notify upper layers of MAC events + */ +typedef struct sLoRaMacCallbacks +{ + /*! + * MAC layer event callback prototype. + * + * \param [IN] flags Bit field indicating the MAC events occurred + * \param [IN] info Details about MAC events occurred + */ + void ( *MacEvent )( LoRaMacEventFlags_t *flags, LoRaMacEventInfo_t *info ); + /*! + * Function callback to get the current battery level + * + * \retval batteryLevel Current battery level + */ + uint8_t ( *GetBatteryLevel )( void ); +}LoRaMacCallbacks_t; + +/*! + * LoRaMAC layer initialization + * + * \param [IN] callbacks Pointer to a structure defining the LoRaMAC + * callback functions. + */ +void LoRaMacInit( LoRaMacCallbacks_t *callbacks ); + +/*! + * Enables/Disables the ADR (Adaptive Data Rate) + * + * \param [IN] enable [true: ADR ON, false: ADR OFF] + */ +void LoRaMacSetAdrOn( bool enable ); + +/*! + * Initializes the network IDs. Device address, + * network session AES128 key and application session AES128 key. + * + * \remark To be only used when Over-the-Air activation isn't used. + * + * \param [IN] netID 24 bits network identifier + * ( provided by network operator ) + * \param [IN] devAddr 32 bits device address on the network + * (must be unique to the network) + * \param [IN] nwkSKey Pointer to the network session AES128 key array + * ( 16 bytes ) + * \param [IN] appSKey Pointer to the application session AES128 key array + * ( 16 bytes ) + */ +void LoRaMacInitNwkIds( uint32_t netID, uint32_t devAddr, uint8_t *nwkSKey, uint8_t *appSKey ); + +/* + * Wrapper function which calls \ref LoRaMacMulticastChannelLink. + */ +void LoRaMacMulticastChannelAdd( MulticastParams_t *channelParam ); + +/* + * Wrapper function which calls \ref LoRaMacMulticastChannelUnlink. + */ +void LoRaMacMulticastChannelRemove( MulticastParams_t *channelParam ); + +/*! + * Initiates the Over-the-Air activation + * + * \param [IN] devEui Pointer to the device EUI array ( 8 bytes ) + * \param [IN] appEui Pointer to the application EUI array ( 8 bytes ) + * \param [IN] appKey Pointer to the application AES128 key array ( 16 bytes ) + * + * \retval status [0: OK, 1: Tx error, 2: Already joined a network] + */ +uint8_t LoRaMacJoinReq( uint8_t *devEui, uint8_t *appEui, uint8_t *appKey ); + +/*! + * Sends a LinkCheckReq MAC command on the next uplink frame + * + * \retval status Function status [0: OK, 1: Busy] + */ +uint8_t LoRaMacLinkCheckReq( void ); + +/*! + * LoRaMAC layer send frame + * + * \param [IN] fPort MAC payload port (must be > 0) + * \param [IN] fBuffer MAC data buffer to be sent + * \param [IN] fBufferSize MAC data buffer size + * + * \retval status [0: OK, 1: Busy, 2: No network joined, + * 3: Length or port error, 4: Unknown MAC command + * 5: Unable to find a free channel + * 6: Device switched off] + */ +uint8_t LoRaMacSendFrame( uint8_t fPort, void *fBuffer, uint16_t fBufferSize ); + +/*! + * LoRaMAC layer send frame + * + * \param [IN] fPort MAC payload port (must be > 0) + * \param [IN] fBuffer MAC data buffer to be sent + * \param [IN] fBufferSize MAC data buffer size + * \param [IN] fBufferSize MAC data buffer size + * \param [IN] nbRetries Number of retries to receive the acknowledgement + * + * \retval status [0: OK, 1: Busy, 2: No network joined, + * 3: Length or port error, 4: Unknown MAC command + * 5: Unable to find a free channel + * 6: Device switched off] + */ +uint8_t LoRaMacSendConfirmedFrame( uint8_t fPort, void *fBuffer, uint16_t fBufferSize, uint8_t nbRetries ); + +/*! + * ============================================================================ + * = LoRaMac test functions = + * ============================================================================ + */ + +/*! + * LoRaMAC layer generic send frame + * + * \param [IN] macHdr MAC header field + * \param [IN] fOpts MAC commands buffer + * \param [IN] fPort MAC payload port + * \param [IN] fBuffer MAC data buffer to be sent + * \param [IN] fBufferSize MAC data buffer size + * \retval status [0: OK, 1: Busy, 2: No network joined, + * 3: Length or port error, 4: Unknown MAC command + * 5: Unable to find a free channel + * 6: Device switched off] + */ +uint8_t LoRaMacSend( LoRaMacHeader_t *macHdr, uint8_t *fOpts, uint8_t fPort, void *fBuffer, uint16_t fBufferSize ); + +/*! + * LoRaMAC layer frame buffer initialization. + * + * \param [IN] channel Channel parameters + * \param [IN] macHdr MAC header field + * \param [IN] fCtrl MAC frame control field + * \param [IN] fOpts MAC commands buffer + * \param [IN] fPort MAC payload port + * \param [IN] fBuffer MAC data buffer to be sent + * \param [IN] fBufferSize MAC data buffer size + * \retval status [0: OK, 1: N/A, 2: No network joined, + * 3: Length or port error, 4: Unknown MAC command] + */ +uint8_t LoRaMacPrepareFrame( ChannelParams_t channel,LoRaMacHeader_t *macHdr, LoRaMacFrameCtrl_t *fCtrl, uint8_t *fOpts, uint8_t fPort, void *fBuffer, uint16_t fBufferSize ); + +/*! + * LoRaMAC layer prepared frame buffer transmission with channel specification + * + * \remark LoRaMacPrepareFrame must be called at least once before calling this + * function. + * + * \param [IN] channel Channel parameters + * \retval status [0: OK, 1: Busy] + */ +uint8_t LoRaMacSendFrameOnChannel( ChannelParams_t channel ); + +/*! + * LoRaMAC layer generic send frame with channel specification + * + * \param [IN] channel Channel parameters + * \param [IN] macHdr MAC header field + * \param [IN] fCtrl MAC frame control field + * \param [IN] fOpts MAC commands buffer + * \param [IN] fPort MAC payload port + * \param [IN] fBuffer MAC data buffer to be sent + * \param [IN] fBufferSize MAC data buffer size + * \retval status [0: OK, 1: Busy, 2: No network joined, + * 3: Length or port error, 4: Unknown MAC command] + */ +uint8_t LoRaMacSendOnChannel( ChannelParams_t channel, LoRaMacHeader_t *macHdr, LoRaMacFrameCtrl_t *fCtrl, uint8_t *fOpts, uint8_t fPort, void *fBuffer, uint16_t fBufferSize ); + +/*! + * ============================================================================ + * = LoRaMac setup functions = + * ============================================================================ + */ + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the LoRaWan device class. + */ +void LoRaMacSetDeviceClass( DeviceClass_t deviceClass ); + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the network type to public or private. + */ +void LoRaMacSetPublicNetwork( bool enable ); + +/* + * Wrapper function which calls \ref LoRaMacChannelAdd. + */ +void LoRaMacSetChannel( uint8_t id, ChannelParams_t params ); + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the receive window 2 channel. + */ +void LoRaMacSetRx2Channel( Rx2ChannelParams_t param ); + +/*! + * Sets channels tx output power + * + * \param [IN] txPower [TX_POWER_20_DBM, TX_POWER_14_DBM, + TX_POWER_11_DBM, TX_POWER_08_DBM, + TX_POWER_05_DBM, TX_POWER_02_DBM] + */ +void LoRaMacSetChannelsTxPower( int8_t txPower ); + +/*! + * Sets channels datarate + * + * \param [IN] datarate eu868 - [DR_0, DR_1, DR_2, DR_3, DR_4, DR_5, DR_6, DR_7] + * us915 - [DR_0, DR_1, DR_2, DR_3, DR_4] + */ +void LoRaMacSetChannelsDatarate( int8_t datarate ); + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the channels mask. + */ +void LoRaMacSetChannelsMask( uint16_t *mask ); + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the number of repetitions on a channel. + */ +void LoRaMacSetChannelsNbRep( uint8_t nbRep ); + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the maximum receive window duration in [us]. + */ +void LoRaMacSetMaxRxWindow( uint32_t delay ); + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the receive delay 1 in [us]. + */ +void LoRaMacSetReceiveDelay1( uint32_t delay ); + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the receive delay 2 in [us]. + */ +void LoRaMacSetReceiveDelay2( uint32_t delay ); + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the join accept delay 1 in [us]. + */ +void LoRaMacSetJoinAcceptDelay1( uint32_t delay ); + +/* + * Wrapper function which calls \ref LoRaMacMibSetRequestConfirm to + * set the join accept delay 2 in [us]. + */ +void LoRaMacSetJoinAcceptDelay2( uint32_t delay ); + +/* + * Wrapper function which calls \ref LoRaMacMibGetRequestConfirm to + * get the up-link counter. + */ +uint32_t LoRaMacGetUpLinkCounter( void ); + +/* + * Wrapper function which calls \ref LoRaMacMibGetRequestConfirm to + * get the down-link counter. + */ +uint32_t LoRaMacGetDownLinkCounter( void ); + +/* + * ============================================================================ + * = LoRaMac test functions = + * ============================================================================ + */ + +/*! + * Disables/Enables the duty cycle enforcement (EU868) + * + * \param [IN] enable - Enabled or disables the duty cycle + */ +void LoRaMacTestSetDutyCycleOn( bool enable ); + +/*! + * Disables/Enables the reception windows opening + * + * \param [IN] enable [true: enable, false: disable] + */ +void LoRaMacTestRxWindowsOn( bool enable ); + +/*! + * Enables the MIC field test + * + * \param [IN] upLinkCounter Fixed Tx packet counter value + */ +void LoRaMacTestSetMic( uint16_t upLinkCounter ); + +#endif /* __LORAMAC_API_V3_H__ */