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Fork of Semtech LoRaWAN stack
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LoRaWAN-lib
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canuck lehead
Diff: LoRaMac.cpp.orig
- Branch:
- SenetNetTool
- Revision:
- 49:8b9e6442a02a
- Parent:
- 36:fc9baa35ae1a
--- a/LoRaMac.cpp.orig Tue Aug 08 11:21:18 2017 -0400
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,4309 +0,0 @@
-/*
- / _____) _ | |
-( (____ _____ ____ _| |_ _____ ____| |__
- \____ \| ___ | (_ _) ___ |/ ___) _ \
- _____) ) ____| | | || |_| ____( (___| | | |
-(______/|_____)_|_|_| \__)_____)\____)_| |_|
- (C)2013 Semtech
- ___ _____ _ ___ _ _____ ___ ___ ___ ___
-/ __|_ _/_\ / __| |/ / __/ _ \| _ \/ __| __|
-\__ \ | |/ _ \ (__| ' <| _| (_) | / (__| _|
-|___/ |_/_/ \_\___|_|\_\_| \___/|_|_\\___|___|
-embedded.connectivity.solutions===============
-
-Description: LoRa MAC layer implementation
-
-License: Revised BSD License, see LICENSE.TXT file include in the project
-
-Maintainer: Miguel Luis ( Semtech ), Gregory Cristian ( Semtech ) and Daniel Jäckle ( STACKFORCE )
-*/
-#include "board.h"
-
-#include "LoRaMacCrypto.h"
-#include "LoRaMac.h"
-#include "LoRaMacTest.h"
-
-/*!
- * Maximum PHY layer payload size
- */
-#define LORAMAC_PHY_MAXPAYLOAD 255
-
-/*!
- * Maximum MAC commands buffer size
- */
-#define LORA_MAC_COMMAND_MAX_LENGTH 15
-
-/*!
- * FRMPayload overhead to be used when setting the Radio.SetMaxPayloadLength
- * in RxWindowSetup function.
- * Maximum PHYPayload = MaxPayloadOfDatarate/MaxPayloadOfDatarateRepeater + LORA_MAC_FRMPAYLOAD_OVERHEAD
- */
-#define LORA_MAC_FRMPAYLOAD_OVERHEAD 13 // MHDR(1) + FHDR(7) + Port(1) + MIC(4)
-
-/*!
- * Minimum number of available channels in Frequency Hopping Mode
- */
-#define FRQ_HOP_CHNLS_MIN 50
-
-/*!
- * Minimum number of available channels in Hybrid Mode
- */
-#define HYBRD_CHNLS_MIN 4
-
-
-/*!
- * Device IEEE EUI
- */
-static uint8_t *LoRaMacDevEui;
-
-/*!
- * Application IEEE EUI
- */
-static uint8_t *LoRaMacAppEui;
-
-/*!
- * AES encryption/decryption cipher application key
- */
-static uint8_t *LoRaMacAppKey;
-
-/*!
- * AES encryption/decryption cipher network session key
- */
-static uint8_t LoRaMacNwkSKey[] =
-{
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-/*!
- * AES encryption/decryption cipher application session key
- */
-static uint8_t LoRaMacAppSKey[] =
-{
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-/*!
- * Device nonce is a random value extracted by issuing a sequence of RSSI
- * measurements
- */
-static uint16_t LoRaMacDevNonce;
-
-/*!
- * Network ID ( 3 bytes )
- */
-static uint32_t LoRaMacNetID;
-
-/*!
- * Mote Address
- */
-static uint32_t LoRaMacDevAddr;
-
-/*!
- * Multicast channels linked list
- */
-static MulticastParams_t *MulticastChannels = NULL;
-
-/*!
- * Actual device class
- */
-static DeviceClass_t LoRaMacDeviceClass;
-
-/*!
- * Indicates if the node is connected to a private or public network
- */
-static bool PublicNetwork;
-
-/*!
- * Indicates if the node supports repeaters
- */
-static bool RepeaterSupport;
-
-/*!
- * Buffer containing the data to be sent or received.
- */
-static uint8_t LoRaMacBuffer[LORAMAC_PHY_MAXPAYLOAD];
-
-/*!
- * Length of packet in LoRaMacBuffer
- */
-static uint16_t LoRaMacBufferPktLen = 0;
-
-/*!
- * Buffer containing the upper layer data.
- */
-static uint8_t LoRaMacPayload[LORAMAC_PHY_MAXPAYLOAD];
-static uint8_t LoRaMacRxPayload[LORAMAC_PHY_MAXPAYLOAD];
-
-/*!
- * LoRaMAC frame counter. Each time a packet is sent the counter is incremented.
- * Only the 16 LSB bits are sent
- */
-static uint32_t UpLinkCounter = 1;
-
-/*!
- * LoRaMAC frame counter. Each time a packet is received the counter is incremented.
- * Only the 16 LSB bits are received
- */
-static uint32_t DownLinkCounter = 0;
-
-/*!
- * IsPacketCounterFixed enables the MIC field tests by fixing the
- * UpLinkCounter value
- */
-static bool IsUpLinkCounterFixed = false;
-
-/*!
- * Used for test purposes. Disables the opening of the reception windows.
- */
-static bool IsRxWindowsEnabled = true;
-
-/*!
- * Indicates if the MAC layer has already joined a network.
- */
-static bool IsLoRaMacNetworkJoined = false;
-
-/*!
- * LoRaMac ADR control status
- */
-static bool AdrCtrlOn = true;
-
-/*!
- * Counts the number of missed ADR acknowledgements
- */
-static uint32_t AdrAckCounter = 0;
-
-/*!
- * If the node has sent a FRAME_TYPE_DATA_CONFIRMED_UP this variable indicates
- * if the nodes needs to manage the server acknowledgement.
- */
-static bool NodeAckRequested = false;
-
-/*!
- * If the server has sent a FRAME_TYPE_DATA_CONFIRMED_DOWN this variable indicates
- * if the ACK bit must be set for the next transmission
- */
-static bool SrvAckRequested = false;
-
-/*!
- * Indicates if the MAC layer wants to send MAC commands
- */
-static bool MacCommandsInNextTx = false;
-
-/*!
- * Contains the current MacCommandsBuffer index
- */
-static uint8_t MacCommandsBufferIndex = 0;
-
-/*!
- * Contains the current MacCommandsBuffer index for MAC commands to repeat
- */
-static uint8_t MacCommandsBufferToRepeatIndex = 0;
-
-/*!
- * Buffer containing the MAC layer commands
- */
-static uint8_t MacCommandsBuffer[LORA_MAC_COMMAND_MAX_LENGTH];
-
-/*!
- * Buffer containing the MAC layer commands which must be repeated
- */
-static uint8_t MacCommandsBufferToRepeat[LORA_MAC_COMMAND_MAX_LENGTH];
-
-#if defined( USE_BAND_433 )
-/*!
- * Data rates table definition
- */
-const uint8_t Datarates[] = { 12, 11, 10, 9, 8, 7, 7, 50 };
-
-/*!
- * Maximum payload with respect to the datarate index. Cannot operate with repeater.
- */
-const uint8_t MaxPayloadOfDatarate[] = { 59, 59, 59, 123, 250, 250, 250, 250 };
-
-/*!
- * Maximum payload with respect to the datarate index. Can operate with repeater.
- */
-const uint8_t MaxPayloadOfDatarateRepeater[] = { 59, 59, 59, 123, 230, 230, 230, 230 };
-
-/*!
- * Tx output powers table definition
- */
-const int8_t TxPowers[] = { 20, 14, 11, 8, 5, 2 };
-
-/*!
- * LoRaMac bands
- */
-static Band_t Bands[LORA_MAX_NB_BANDS] =
-{
- BAND0,
-};
-
-/*!
- * LoRaMAC channels
- */
-static ChannelParams_t Channels[LORA_MAX_NB_CHANNELS] =
-{
- LC1,
- LC2,
- LC3,
-};
-#elif defined( USE_BAND_780 )
-/*!
- * Data rates table definition
- */
-const uint8_t Datarates[] = { 12, 11, 10, 9, 8, 7, 7, 50 };
-
-/*!
- * Maximum payload with respect to the datarate index. Cannot operate with repeater.
- */
-const uint8_t MaxPayloadOfDatarate[] = { 59, 59, 59, 123, 250, 250, 250, 250 };
-
-/*!
- * Maximum payload with respect to the datarate index. Can operate with repeater.
- */
-const uint8_t MaxPayloadOfDatarateRepeater[] = { 59, 59, 59, 123, 230, 230, 230, 230 };
-
-/*!
- * Tx output powers table definition
- */
-const int8_t TxPowers[] = { 20, 14, 11, 8, 5, 2 };
-
-/*!
- * LoRaMac bands
- */
-static Band_t Bands[LORA_MAX_NB_BANDS] =
-{
- BAND0,
-};
-
-/*!
- * LoRaMAC channels
- */
-static ChannelParams_t Channels[LORA_MAX_NB_CHANNELS] =
-{
- LC1,
- LC2,
- LC3,
-};
-#elif defined( USE_BAND_868 )
-/*!
- * Data rates table definition
- */
-const uint8_t Datarates[] = { 12, 11, 10, 9, 8, 7, 7, 50 };
-
-/*!
- * Maximum payload with respect to the datarate index. Cannot operate with repeater.
- */
-const uint8_t MaxPayloadOfDatarate[] = { 51, 51, 51, 115, 242, 242, 242, 242 };
-
-/*!
- * Maximum payload with respect to the datarate index. Can operate with repeater.
- */
-const uint8_t MaxPayloadOfDatarateRepeater[] = { 51, 51, 51, 115, 222, 222, 222, 222 };
-
-/*!
- * Tx output powers table definition
- */
-const int8_t TxPowers[] = { 20, 14, 11, 8, 5, 2 };
-
-/*!
- * LoRaMac bands
- */
-static Band_t Bands[LORA_MAX_NB_BANDS] =
-{
- BAND0,
- BAND1,
- BAND2,
- BAND3,
- BAND4,
-};
-
-/*!
- * LoRaMAC channels
- */
-static ChannelParams_t Channels[LORA_MAX_NB_CHANNELS] =
-{
- LC1,
- LC2,
- LC3,
-};
-#elif defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
-/*!
- * Data rates table definition
- */
-const uint8_t Datarates[] = { 10, 9, 8, 7, 8, 0, 0, 0, 12, 11, 10, 9, 8, 7, 0, 0 };
-
-/*!
- * Up/Down link data rates offset definition
- */
-const uint8_t datarateOffsets[16][4] =
-{
- { DR_10, DR_9 , DR_8 , DR_8 }, // DR_0
- { DR_11, DR_10, DR_9 , DR_8 }, // DR_1
- { DR_12, DR_11, DR_10, DR_9 }, // DR_2
- { DR_13, DR_12, DR_11, DR_10 }, // DR_3
- { DR_13, DR_13, DR_12, DR_11 }, // DR_4
- { 0xFF , 0xFF , 0xFF , 0xFF },
- { 0xFF , 0xFF , 0xFF , 0xFF },
- { 0xFF , 0xFF , 0xFF , 0xFF },
- { DR_8 , DR_8 , DR_8 , DR_8 },
- { DR_9 , DR_8 , DR_8 , DR_8 },
- { DR_10, DR_9 , DR_8 , DR_8 },
- { DR_11, DR_10, DR_9 , DR_8 },
- { DR_12, DR_11, DR_10, DR_9 },
- { DR_13, DR_12, DR_11, DR_10 },
- { 0xFF , 0xFF , 0xFF , 0xFF },
- { 0xFF , 0xFF , 0xFF , 0xFF },
-};
-
-/*!
- * Maximum payload with respect to the datarate index. Cannot operate with repeater.
- */
-const uint8_t MaxPayloadOfDatarate[] = { 11, 53, 126, 242, 242, 0, 0, 0, 53, 129, 242, 242, 242, 242, 0, 0 };
-
-/*!
- * Maximum payload with respect to the datarate index. Can operate with repeater.
- */
-const uint8_t MaxPayloadOfDatarateRepeater[] = { 11, 53, 126, 242, 242, 0, 0, 0, 33, 109, 222, 222, 222, 222, 0, 0 };
-
-/*!
- * Tx output powers table definition
- */
-const int8_t TxPowers[] = { 30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10 };
-
-/*!
- * LoRaMac bands
- */
-static Band_t Bands[LORA_MAX_NB_BANDS] =
-{
- BAND0,
-};
-
-/*!
- * LoRaMAC channels
- */
-static ChannelParams_t Channels[LORA_MAX_NB_CHANNELS];
-
-/*!
- * Contains the channels which remain to be applied.
- */
-static uint16_t ChannelsMaskRemaining[6];
-
-#if defined( USE_BAND_915 )
-/*!
- * Last join request sub-band
- */
-static int8_t LastJoinBlock;
-
-/*!
- * Next join sub-band block
- */
-static uint8_t NextJoinBlock;
-
-/*!
- * Mask of 125 KHz sub-bands not used for join transmit
- */
-static uint8_t JoinBlocksRemaining;
-
-/*!
- * Mask of 500 KHz sub-bands not used for join transmit
- */
-static uint8_t Join500KHzRemaining;
-
-#ifndef JOIN_BLOCK_ORDER
-#define JOIN_BLOCK_ORDER { -1, -1, -1, -1, -1, -1, -1, -1 }
-#endif
-
-/*!
- * join sub-band block order
- */
-static int8_t JoinBlock[8] = JOIN_BLOCK_ORDER;
-
-#endif
-
-/*!
- * Defines the first channel for RX window 2 for US band
- */
-#define LORAMAC_FIRST_RX2_CHANNEL ( (uint32_t) 923.3e6 )
-
-/*!
- * Defines the last channel for RX window 2 for US band
- */
-#define LORAMAC_LAST_RX2_CHANNEL ( (uint32_t) 927.5e6 )
-
-/*!
- * Defines the step width of the channels for RX window 2
- */
-#define LORAMAC_STEPWIDTH_RX2_CHANNEL ( (uint32_t) 600e3 )
-
-
-#else
- #error "Please define a frequency band in the compiler options."
-#endif
-
-/*!
- * LoRaMAC 2nd reception window settings
- */
-static Rx2ChannelParams_t Rx2Channel = RX_WND_2_CHANNEL;
-
-/*!
- * Datarate offset between uplink and downlink on first window
- */
-static uint8_t Rx1DrOffset = 0;
-
-/*!
- * Mask indicating which channels are enabled
- */
-static uint16_t ChannelsMask[6];
-
-/*!
- * Channels Tx output power
- */
-static int8_t ChannelsTxPower = LORAMAC_DEFAULT_TX_POWER;
-
-/*!
- * Channels datarate
- */
-static int8_t ChannelsDatarate = LORAMAC_DEFAULT_DATARATE;
-
-/*!
- * Channels default datarate
- */
-static int8_t ChannelsDefaultDatarate = LORAMAC_DEFAULT_DATARATE;
-
-/*!
- * Number of uplink messages repetitions [1:15] (unconfirmed messages only)
- */
-static uint8_t ChannelsNbRep = 1;
-
-/*!
- * Uplink messages repetitions counter
- */
-static uint8_t ChannelsNbRepCounter = 0;
-
-/*!
- * Maximum duty cycle
- * \remark Possibility to shutdown the device.
- */
-static uint8_t MaxDCycle = 0;
-
-/*!
- * Aggregated duty cycle management
- */
-static uint16_t AggregatedDCycle;
-static TimerTime_t AggregatedLastTxDoneTime;
-static TimerTime_t AggregatedTimeOff;
-
-/*!
- * Enables/Disables duty cycle management (Test only)
- */
-static bool DutyCycleOn;
-
-/*!
- * Current channel index
- */
-static uint8_t Channel;
-
-static uint8_t LastTxChannel;
-
-/*!
- * LoRaMac internal states
- */
-enum eLoRaMacState
-{
- MAC_IDLE = 0x00000000,
- MAC_TX_RUNNING = 0x00000001,
- MAC_RX = 0x00000002,
- MAC_ACK_REQ = 0x00000004,
- MAC_ACK_RETRY = 0x00000008,
- MAC_TX_DELAYED = 0x00000010,
- MAC_TX_CONFIG = 0x00000020,
- MAC_RX_ABORT = 0x00000040,
-};
-
-/*!
- * LoRaMac internal state
- */
-uint32_t LoRaMacState = MAC_IDLE;
-
-/*!
- * LoRaMac timer used to check the LoRaMacState (runs every second)
- */
-static TimerEvent_t MacStateCheckTimer;
-
-/*!
- * LoRaMac upper layer event functions
- */
-static LoRaMacPrimitives_t *LoRaMacPrimitives;
-
-/*!
- * LoRaMac upper layer callback functions
- */
-static LoRaMacCallback_t *LoRaMacCallbacks;
-
-/*!
- * Radio events function pointer
- */
-static RadioEvents_t RadioEvents;
-
-/*!
- * LoRaMac duty cycle delayed Tx timer
- */
-static TimerEvent_t TxDelayedTimer;
-
-/*!
- * LoRaMac reception windows timers
- */
-static TimerEvent_t RxWindowTimer1;
-static TimerEvent_t RxWindowTimer2;
-
-/*!
- * LoRaMac reception windows delay from end of Tx
- */
-static uint32_t ReceiveDelay1;
-static uint32_t ReceiveDelay2;
-static uint32_t JoinAcceptDelay1;
-static uint32_t JoinAcceptDelay2;
-
-/*!
- * LoRaMac reception windows delay
- * \remark normal frame: RxWindowXDelay = ReceiveDelayX - RADIO_WAKEUP_TIME
- * join frame : RxWindowXDelay = JoinAcceptDelayX - RADIO_WAKEUP_TIME
- */
-static uint32_t RxWindow1Delay;
-static uint32_t RxWindow2Delay;
-
-/*!
- * LoRaMac maximum time a reception window stays open
- */
-static uint32_t MaxRxWindow;
-
-/*!
- * Acknowledge timeout timer. Used for packet retransmissions.
- */
-static TimerEvent_t AckTimeoutTimer;
-
-/*!
- * Number of trials to get a frame acknowledged
- */
-static uint8_t AckTimeoutRetries = 1;
-
-/*!
- * Number of trials to get a frame acknowledged
- */
-static uint8_t AckTimeoutRetriesCounter = 1;
-
-/*!
- * Indicates if the AckTimeout timer has expired or not
- */
-static bool AckTimeoutRetry = false;
-
-/*!
- * Last transmission time on air
- */
-TimerTime_t TxTimeOnAir = 0;
-
-/*!
- * Structure to hold an MCPS indication data.
- */
-static McpsIndication_t McpsIndication;
-
-/*!
- * Structure to hold MCPS confirm data.
- */
-static McpsConfirm_t McpsConfirm;
-
-/*!
- * Structure to hold MLME confirm data.
- */
-static MlmeConfirm_t MlmeConfirm;
-
-/*!
- * Holds the current rx window slot
- */
-static uint8_t RxSlot = 0;
-
-/*!
- * LoRaMac tx/rx operation state
- */
-LoRaMacFlags_t LoRaMacFlags;
-
-/*!
- * Join Retransmission back-off configuration
- */
-LoRaMacRetransmissionDCycle_t JoinReTransmitDCycle[JOIN_NB_RETRANSMISSION_DCYCLES] =
-{
- JOIN_RETRANSMISSION_DCYCLE1,
- JOIN_RETRANSMISSION_DCYCLE2,
- JOIN_RETRANSMISSION_DCYCLE3
-};
-
-/*!
- * Uptime of the last sent join request
- */
-static TimerTime_t LastJoinTxTime;
-
-/*!
- * Aggregated join request time on air
- */
-static TimerTime_t JoinAggTimeOnAir;
-
-
-/*!
- * \brief Function to be executed on Radio Tx Done event
- */
-static void OnRadioTxDone( void );
-
-/*!
- * \brief This function prepares the MAC to abort the execution of function
- * OnRadioRxDone in case of a reception error.
- */
-static void PrepareRxDoneAbort( void );
-
-/*!
- * \brief Function to be executed on Radio Rx Done event
- */
-static void OnRadioRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr );
-
-/*!
- * \brief Function executed on Radio Tx Timeout event
- */
-static void OnRadioTxTimeout( void );
-
-/*!
- * \brief Function executed on Radio Rx error event
- */
-static void OnRadioRxError( void );
-
-/*!
- * \brief Function executed on Radio Rx Timeout event
- */
-static void OnRadioRxTimeout( void );
-
-/*!
- * \brief Function executed on Resend Frame timer event.
- */
-static void OnMacStateCheckTimerEvent( void );
-
-/*!
- * \brief Function executed on duty cycle delayed Tx timer event
- */
-static void OnTxDelayedTimerEvent( void );
-
-/*!
- * \brief Function executed on first Rx window timer event
- */
-static void OnRxWindow1TimerEvent( void );
-
-/*!
- * \brief Function executed on second Rx window timer event
- */
-static void OnRxWindow2TimerEvent( void );
-
-/*!
- * \brief Function executed on AckTimeout timer event
- */
-static void OnAckTimeoutTimerEvent( void );
-
-/*!
- * \brief Searches and set the next random available channel
- *
- * \param [OUT] Time to wait for the next transmission according to the duty
- * cycle.
- *
- * \retval status Function status [1: OK, 0: Unable to find a channel on the
- * current datarate]
- */
-static bool SetNextChannel( TimerTime_t* time );
-
-/*!
- * \brief Sets the network to public or private. Updates the sync byte.
- *
- * \param [IN] enable if true, it enables a public network
- */
-static void SetPublicNetwork( bool enable );
-
-/*!
- * \brief Initializes and opens the reception window
- *
- * \param [IN] freq window channel frequency
- * \param [IN] datarate window channel datarate
- * \param [IN] bandwidth window channel bandwidth
- * \param [IN] timeout window channel timeout
- */
-static void RxWindowSetup( uint32_t freq, int8_t datarate, uint32_t bandwidth, uint16_t timeout, bool rxContinuous );
-
-/*!
- * \brief Verifies if the RX window 2 frequency is in range
- *
- * \param [IN] freq window channel frequency
- *
- * \retval status Function status [1: OK, 0: Frequency not applicable]
- */
-static bool Rx2FreqInRange( uint32_t freq );
-
-
-/*!
- * \brief Adds a new MAC command to be sent.
- *
- * \Remark MAC layer internal function
- *
- * \param [in] cmd MAC command to be added
- * [MOTE_MAC_LINK_CHECK_REQ,
- * MOTE_MAC_LINK_ADR_ANS,
- * MOTE_MAC_DUTY_CYCLE_ANS,
- * MOTE_MAC_RX2_PARAM_SET_ANS,
- * MOTE_MAC_DEV_STATUS_ANS
- * MOTE_MAC_NEW_CHANNEL_ANS]
- * \param [in] p1 1st parameter ( optional depends on the command )
- * \param [in] p2 2nd parameter ( optional depends on the command )
- *
- * \retval status Function status [0: OK, 1: Unknown command, 2: Buffer full]
- */
-static LoRaMacStatus_t AddMacCommand( uint8_t cmd, uint8_t p1, uint8_t p2 );
-
-/*!
- * \brief Parses the MAC commands which must be repeated.
- *
- * \Remark MAC layer internal function
- *
- * \param [IN] cmdBufIn Buffer which stores the MAC commands to send
- * \param [IN] length Length of the input buffer to parse
- * \param [OUT] cmdBufOut Buffer which stores the MAC commands which must be
- * repeated.
- *
- * \retval Size of the MAC commands to repeat.
- */
-static uint8_t ParseMacCommandsToRepeat( uint8_t* cmdBufIn, uint8_t length, uint8_t* cmdBufOut );
-
-/*!
- * \brief Validates if the payload fits into the frame, taking the datarate
- * into account.
- *
- * \details Refer to chapter 4.3.2 of the LoRaWAN specification, v1.0
- *
- * \param lenN Length of the application payload. The length depends on the
- * datarate and is region specific
- *
- * \param datarate Current datarate
- *
- * \param fOptsLen Length of the fOpts field
- *
- * \retval [false: payload does not fit into the frame, true: payload fits into
- * the frame]
- */
-static bool ValidatePayloadLength( uint8_t lenN, int8_t datarate, uint8_t fOptsLen );
-
-/*!
- * \brief Counts the number of bits in a mask.
- *
- * \param [IN] mask A mask from which the function counts the active bits.
- * \param [IN] nbBits The number of bits to check.
- *
- * \retval Number of enabled bits in the mask.
- */
-static uint8_t CountBits( uint16_t mask, uint8_t nbBits );
-
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
-/*!
- * \brief Counts the number of enabled 125 kHz channels in the channel mask.
- * This function can only be applied to US915 band.
- *
- * \param [IN] channelsMask Pointer to the first element of the channel mask
- *
- * \retval Number of enabled channels in the channel mask
- */
-static uint8_t CountNbEnabled125kHzChannels( uint16_t *channelsMask );
-
-#if defined( USE_BAND_915_HYBRID )
-/*!
- * \brief Validates the correctness of the channel mask for US915, hybrid mode.
- *
- * \param [IN] mask Block definition to set.
- * \param [OUT] channelsMask Pointer to the first element of the channel mask
- */
-static void ReenableChannels( uint16_t mask, uint16_t* channelMask );
-
-/*!
- * \brief Validates the correctness of the channel mask for US915, hybrid mode.
- *
- * \param [IN] channelsMask Pointer to the first element of the channel mask
- *
- * \retval [true: channel mask correct, false: channel mask not correct]
- */
-static bool ValidateChannelMask( uint16_t* channelMask );
-#endif
-
-#endif
-
-/*!
- * \brief Limits the Tx power according to the number of enabled channels
- *
- * \retval Returns the maximum valid tx power
- */
-static int8_t LimitTxPower( int8_t txPower );
-
-/*!
- * \brief Verifies, if a value is in a given range.
- *
- * \param value Value to verify, if it is in range
- *
- * \param min Minimum possible value
- *
- * \param max Maximum possible value
- *
- * \retval Returns the maximum valid tx power
- */
-static bool ValueInRange( int8_t value, int8_t min, int8_t max );
-
-/*!
- * \brief Calculates the next datarate to set, when ADR is on or off
- *
- * \param [IN] adrEnabled Specify whether ADR is on or off
- *
- * \param [IN] isTx Set to true if called by transmit, set to false if a dry run
- *
- * \param [OUT] datarateOut Reports the datarate which will be used next
- *
- * \param [OUT] txpowerOut Reports the tx power which will be used next
- *
- * \retval Returns the state of ADR ack request
- */
-static bool AdrNextDr( bool adrEnabled, bool isTx, int8_t* datarateOut, int8_t* txpowerOut );
-
-/*!
- * \brief Disables channel in a specified channel mask
- *
- * \param [IN] id - Id of the channel
- *
- * \param [IN] mask - Pointer to the channel mask to edit
- *
- * \retval [true, if disable was successful, false if not]
- */
-static bool DisableChannelInMask( uint8_t id, uint16_t* mask );
-
-/*!
- * \brief Decodes MAC commands in the fOpts field and in the payload
- */
-static void ProcessMacCommands( uint8_t *payload, uint8_t macIndex, uint8_t commandsSize, uint8_t snr );
-
-/*!
- * \brief LoRaMAC layer generic send frame
- *
- * \param [IN] macHdr MAC header field
- * \param [IN] fPort MAC payload port
- * \param [IN] fBuffer MAC data buffer to be sent
- * \param [IN] fBufferSize MAC data buffer size
- * \retval status Status of the operation.
- */
-LoRaMacStatus_t Send( LoRaMacHeader_t *macHdr, uint8_t fPort, void *fBuffer, uint16_t fBufferSize );
-
-/*!
- * \brief LoRaMAC layer frame buffer initialization
- *
- * \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 Status of the operation.
- */
-LoRaMacStatus_t PrepareFrame( LoRaMacHeader_t *macHdr, LoRaMacFrameCtrl_t *fCtrl, uint8_t fPort, void *fBuffer, uint16_t fBufferSize );
-
-/*
- * \brief Schedules the frame according to the duty cycle
- *
- * \retval Status of the operation
- */
-static LoRaMacStatus_t ScheduleTx( void );
-
-/*
- * \brief Calculates the back-off time for the band of a channel.
- *
- * \param [IN] channel The last Tx channel index
- */
-static void CalculateBackOff( uint8_t channel );
-
-/*!
- * \brief LoRaMAC layer prepared frame buffer transmission with channel specification
- *
- * \remark PrepareFrame must be called at least once before calling this
- * function.
- *
- * \param [IN] channel Channel parameters
- * \retval status Status of the operation.
- */
-LoRaMacStatus_t SendFrameOnChannel( ChannelParams_t channel );
-
-
-
-static void OnRadioTxDone( void )
-{
- TimerTime_t curTime = TimerGetCurrentTime( );
- if( LoRaMacDeviceClass != CLASS_C )
- {
- Radio.Sleep( );
- }
- else
- {
- OnRxWindow2TimerEvent( );
- }
-
- // Store last Tx channel
- LastTxChannel = Channel;
- // Update last tx done time for the current channel
- Bands[Channels[LastTxChannel].Band].LastTxDoneTime = curTime;
- // Update Aggregated last tx done time
- AggregatedLastTxDoneTime = curTime;
-
- // Update join tx done and time on air
- if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) && ( MlmeConfirm.MlmeRequest == MLME_JOIN ) )
- {
- JoinAggTimeOnAir += TxTimeOnAir;
- LastJoinTxTime = curTime;
- }
-
- if( IsRxWindowsEnabled == true )
- {
- TimerSetValue( &RxWindowTimer1, RxWindow1Delay );
- TimerStart( &RxWindowTimer1 );
- if( LoRaMacDeviceClass != CLASS_C )
- {
- TimerSetValue( &RxWindowTimer2, RxWindow2Delay );
- TimerStart( &RxWindowTimer2 );
- }
- if( ( LoRaMacDeviceClass == CLASS_C ) || ( NodeAckRequested == true ) )
- {
- TimerSetValue( &AckTimeoutTimer, RxWindow2Delay + ACK_TIMEOUT +
- randr( -ACK_TIMEOUT_RND, ACK_TIMEOUT_RND ) );
- TimerStart( &AckTimeoutTimer );
- }
- }
- else
- {
- McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
- MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX2_TIMEOUT;
-
- if( LoRaMacFlags.Value == 0 )
- {
- LoRaMacFlags.Bits.McpsReq = 1;
- }
- LoRaMacFlags.Bits.MacDone = 1;
- }
-
- if( NodeAckRequested == false )
- {
- McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
- ChannelsNbRepCounter++;
- }
-}
-
-static void PrepareRxDoneAbort( void )
-{
- LoRaMacState |= MAC_RX_ABORT;
-
- if( NodeAckRequested )
- {
- OnAckTimeoutTimerEvent( );
- }
-
- if( ( RxSlot == 0 ) && ( LoRaMacDeviceClass == CLASS_C ) )
- {
- OnRxWindow2TimerEvent( );
- }
-
- LoRaMacFlags.Bits.McpsInd = 1;
- LoRaMacFlags.Bits.MacDone = 1;
-
- // Trig OnMacCheckTimerEvent call as soon as possible
- TimerSetValue( &MacStateCheckTimer, 1000 );
- TimerStart( &MacStateCheckTimer );
-}
-
-static void OnRadioRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
-{
- LoRaMacHeader_t macHdr;
- LoRaMacFrameCtrl_t fCtrl;
- bool skipIndication = false;
-
- uint8_t pktHeaderLen = 0;
- uint32_t address = 0;
- uint8_t appPayloadStartIndex = 0;
- uint8_t port = 0xFF;
- uint8_t frameLen = 0;
- uint32_t mic = 0;
- uint32_t micRx = 0;
-
- uint16_t sequenceCounter = 0;
- uint16_t sequenceCounterPrev = 0;
- uint16_t sequenceCounterDiff = 0;
- uint32_t downLinkCounter = 0;
-
- MulticastParams_t *curMulticastParams = NULL;
- uint8_t *nwkSKey = LoRaMacNwkSKey;
- uint8_t *appSKey = LoRaMacAppSKey;
-
- uint8_t multicast = 0;
-
- bool isMicOk = false;
-
- McpsConfirm.AckReceived = false;
- McpsIndication.Rssi = rssi;
- McpsIndication.Snr = snr;
- McpsIndication.RxSlot = RxSlot;
- McpsIndication.Port = 0;
- McpsIndication.Multicast = 0;
- McpsIndication.FramePending = 0;
- McpsIndication.Buffer = NULL;
- McpsIndication.BufferSize = 0;
- McpsIndication.RxData = false;
- McpsIndication.AckReceived = false;
- McpsIndication.DownLinkCounter = 0;
- McpsIndication.McpsIndication = MCPS_UNCONFIRMED;
-
- if( LoRaMacDeviceClass != CLASS_C )
- {
- Radio.Sleep( );
- }
- TimerStop( &RxWindowTimer2 );
-
- macHdr.Value = payload[pktHeaderLen++];
-
- switch( macHdr.Bits.MType )
- {
- case FRAME_TYPE_JOIN_ACCEPT:
- if( IsLoRaMacNetworkJoined == true )
- {
- break;
- }
- LoRaMacJoinDecrypt( payload + 1, size - 1, LoRaMacAppKey, LoRaMacRxPayload + 1 );
-
- LoRaMacRxPayload[0] = macHdr.Value;
-
- LoRaMacJoinComputeMic( LoRaMacRxPayload, size - LORAMAC_MFR_LEN, LoRaMacAppKey, &mic );
-
- micRx |= ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN];
- micRx |= ( ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN + 1] << 8 );
- micRx |= ( ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN + 2] << 16 );
- micRx |= ( ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN + 3] << 24 );
-
- if( micRx == mic )
- {
- LoRaMacJoinComputeSKeys( LoRaMacAppKey, LoRaMacRxPayload + 1, LoRaMacDevNonce, LoRaMacNwkSKey, LoRaMacAppSKey );
-
- LoRaMacNetID = ( uint32_t )LoRaMacRxPayload[4];
- LoRaMacNetID |= ( ( uint32_t )LoRaMacRxPayload[5] << 8 );
- LoRaMacNetID |= ( ( uint32_t )LoRaMacRxPayload[6] << 16 );
-
- LoRaMacDevAddr = ( uint32_t )LoRaMacRxPayload[7];
- LoRaMacDevAddr |= ( ( uint32_t )LoRaMacRxPayload[8] << 8 );
- LoRaMacDevAddr |= ( ( uint32_t )LoRaMacRxPayload[9] << 16 );
- LoRaMacDevAddr |= ( ( uint32_t )LoRaMacRxPayload[10] << 24 );
-
- // DLSettings
- Rx1DrOffset = ( LoRaMacRxPayload[11] >> 4 ) & 0x07;
- Rx2Channel.Datarate = LoRaMacRxPayload[11] & 0x0F;
- // RxDelay
- ReceiveDelay1 = ( LoRaMacRxPayload[12] & 0x0F );
- if( ReceiveDelay1 == 0 )
- {
- ReceiveDelay1 = 1;
- }
- ReceiveDelay1 *= 1e6;
- ReceiveDelay2 = ReceiveDelay1 + 1e6;
-
-#if !( defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID ) )
- //CFList
- if( ( size - 1 ) > 16 )
- {
- ChannelParams_t param;
- param.DrRange.Value = ( DR_5 << 4 ) | DR_0;
-
- LoRaMacState |= MAC_TX_CONFIG;
- for( uint8_t i = 3, j = 0; i < ( 5 + 3 ); i++, j += 3 )
- {
- param.Frequency = ( ( uint32_t )LoRaMacRxPayload[13 + j] | ( ( uint32_t )LoRaMacRxPayload[14 + j] << 8 ) | ( ( uint32_t )LoRaMacRxPayload[15 + j] << 16 ) ) * 100;
- LoRaMacChannelAdd( i, param );
- }
- LoRaMacState &= ~MAC_TX_CONFIG;
- }
-#endif
- MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
- IsLoRaMacNetworkJoined = true;
-
- // Do not change the datarate
- // ChannelsDatarate = ChannelsDefaultDatarate;
- }
- else
- {
- MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_JOIN_FAIL;
- }
- break;
- case FRAME_TYPE_DATA_CONFIRMED_DOWN:
- case FRAME_TYPE_DATA_UNCONFIRMED_DOWN:
- {
- address = payload[pktHeaderLen++];
- address |= ( (uint32_t)payload[pktHeaderLen++] << 8 );
- address |= ( (uint32_t)payload[pktHeaderLen++] << 16 );
- address |= ( (uint32_t)payload[pktHeaderLen++] << 24 );
-
- if( address != LoRaMacDevAddr )
- {
- curMulticastParams = MulticastChannels;
- while( curMulticastParams != NULL )
- {
- if( address == curMulticastParams->Address )
- {
- multicast = 1;
- nwkSKey = curMulticastParams->NwkSKey;
- appSKey = curMulticastParams->AppSKey;
- downLinkCounter = curMulticastParams->DownLinkCounter;
- break;
- }
- curMulticastParams = curMulticastParams->Next;
- }
- if( multicast == 0 )
- {
- // We are not the destination of this frame.
- McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_ADDRESS_FAIL;
- PrepareRxDoneAbort( );
- return;
- }
- }
- else
- {
- multicast = 0;
- nwkSKey = LoRaMacNwkSKey;
- appSKey = LoRaMacAppSKey;
- downLinkCounter = DownLinkCounter;
- }
-
- fCtrl.Value = payload[pktHeaderLen++];
-
- sequenceCounter = ( uint16_t )payload[pktHeaderLen++];
- sequenceCounter |= ( uint16_t )payload[pktHeaderLen++] << 8;
-
- appPayloadStartIndex = 8 + fCtrl.Bits.FOptsLen;
-
- micRx |= ( uint32_t )payload[size - LORAMAC_MFR_LEN];
- micRx |= ( ( uint32_t )payload[size - LORAMAC_MFR_LEN + 1] << 8 );
- micRx |= ( ( uint32_t )payload[size - LORAMAC_MFR_LEN + 2] << 16 );
- micRx |= ( ( uint32_t )payload[size - LORAMAC_MFR_LEN + 3] << 24 );
-
- sequenceCounterPrev = ( uint16_t )downLinkCounter;
- sequenceCounterDiff = ( sequenceCounter - sequenceCounterPrev );
-
- if( sequenceCounterDiff < ( 1 << 15 ) )
- {
- downLinkCounter += sequenceCounterDiff;
- LoRaMacComputeMic( payload, size - LORAMAC_MFR_LEN, nwkSKey, address, DOWN_LINK, downLinkCounter, &mic );
- if( micRx == mic )
- {
- isMicOk = true;
- }
- }
- else
- {
- // check for sequence roll-over
- uint32_t downLinkCounterTmp = downLinkCounter + 0x10000 + ( int16_t )sequenceCounterDiff;
- LoRaMacComputeMic( payload, size - LORAMAC_MFR_LEN, nwkSKey, address, DOWN_LINK, downLinkCounterTmp, &mic );
- if( micRx == mic )
- {
- isMicOk = true;
- downLinkCounter = downLinkCounterTmp;
- }
- }
-
- // Check for a the maximum allowed counter difference
- if( sequenceCounterDiff >= MAX_FCNT_GAP )
- {
- McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_DOWNLINK_TOO_MANY_FRAMES_LOSS;
- McpsIndication.DownLinkCounter = downLinkCounter;
- PrepareRxDoneAbort( );
- return;
- }
-
- if( isMicOk == true )
- {
- McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_OK;
- McpsIndication.Multicast = multicast;
- McpsIndication.FramePending = fCtrl.Bits.FPending;
- McpsIndication.Buffer = NULL;
- McpsIndication.BufferSize = 0;
- McpsIndication.DownLinkCounter = downLinkCounter;
-
- McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
-
- AdrAckCounter = 0;
- MacCommandsBufferToRepeatIndex = 0;
-
- // Update 32 bits downlink counter
- if( multicast == 1 )
- {
- McpsIndication.McpsIndication = MCPS_MULTICAST;
-
- if( ( curMulticastParams->DownLinkCounter == downLinkCounter ) &&
- ( curMulticastParams->DownLinkCounter != 0 ) )
- {
- McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_DOWNLINK_REPEATED;
- McpsIndication.DownLinkCounter = downLinkCounter;
- PrepareRxDoneAbort( );
- return;
- }
- curMulticastParams->DownLinkCounter = downLinkCounter;
- }
- else
- {
- if( macHdr.Bits.MType == FRAME_TYPE_DATA_CONFIRMED_DOWN )
- {
- SrvAckRequested = true;
- McpsIndication.McpsIndication = MCPS_CONFIRMED;
-
- if( ( DownLinkCounter == downLinkCounter ) &&
- ( DownLinkCounter != 0 ) )
- {
- // Duplicated confirmed downlink. Skip indication.
- skipIndication = true;
- }
- }
- else
- {
- SrvAckRequested = false;
- McpsIndication.McpsIndication = MCPS_UNCONFIRMED;
-
- if( ( DownLinkCounter == downLinkCounter ) &&
- ( DownLinkCounter != 0 ) )
- {
- McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_DOWNLINK_REPEATED;
- McpsIndication.DownLinkCounter = downLinkCounter;
- PrepareRxDoneAbort( );
- return;
- }
- }
- DownLinkCounter = downLinkCounter;
- }
-
-
- if( ( ( size - 4 ) - appPayloadStartIndex ) > 0 )
- {
- port = payload[appPayloadStartIndex++];
- frameLen = ( size - 4 ) - appPayloadStartIndex;
-
- McpsIndication.Port = port;
-
- if( port == 0 )
- {
- if( fCtrl.Bits.FOptsLen == 0 )
- {
- LoRaMacPayloadDecrypt( payload + appPayloadStartIndex,
- frameLen,
- nwkSKey,
- address,
- DOWN_LINK,
- downLinkCounter,
- LoRaMacRxPayload );
-
- // Decode frame payload MAC commands
- ProcessMacCommands( LoRaMacRxPayload, 0, frameLen, snr );
- }
- else
- {
- skipIndication = true;
- }
- }
- else
- {
- if( fCtrl.Bits.FOptsLen > 0 )
- {
- // Decode Options field MAC commands. Omit the fPort.
- ProcessMacCommands( payload, 8, appPayloadStartIndex - 1, snr );
- }
-
- LoRaMacPayloadDecrypt( payload + appPayloadStartIndex,
- frameLen,
- appSKey,
- address,
- DOWN_LINK,
- downLinkCounter,
- LoRaMacRxPayload );
-
- if( skipIndication == false )
- {
- McpsIndication.Buffer = LoRaMacRxPayload;
- McpsIndication.BufferSize = frameLen;
- McpsIndication.RxData = true;
- }
- }
- }
- else
- {
- if( fCtrl.Bits.FOptsLen > 0 )
- {
- // Decode Options field MAC commands
- ProcessMacCommands( payload, 8, appPayloadStartIndex, snr );
- }
- }
-
- if( skipIndication == false )
- {
- // Check if the frame is an acknowledgement
- if( fCtrl.Bits.Ack == 1 )
- {
- McpsConfirm.AckReceived = true;
- McpsIndication.AckReceived = true;
-
- // Stop the AckTimeout timer as no more retransmissions
- // are needed.
- TimerStop( &AckTimeoutTimer );
- }
- else
- {
- McpsConfirm.AckReceived = false;
-
- if( AckTimeoutRetriesCounter > AckTimeoutRetries )
- {
- // Stop the AckTimeout timer as no more retransmissions
- // are needed.
- TimerStop( &AckTimeoutTimer );
- }
- }
- LoRaMacFlags.Bits.McpsInd = 1;
- }
- }
- else
- {
- McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_MIC_FAIL;
-
- PrepareRxDoneAbort( );
- return;
- }
- }
- break;
- case FRAME_TYPE_PROPRIETARY:
- {
- memcpy1( LoRaMacRxPayload, &payload[pktHeaderLen], size );
-
- McpsIndication.McpsIndication = MCPS_PROPRIETARY;
- McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_OK;
- McpsIndication.Buffer = LoRaMacRxPayload;
- McpsIndication.BufferSize = size - pktHeaderLen;
-
- LoRaMacFlags.Bits.McpsInd = 1;
- break;
- }
- default:
- McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_ERROR;
- PrepareRxDoneAbort( );
- break;
- }
-
- if( ( RxSlot == 0 ) && ( LoRaMacDeviceClass == CLASS_C ) )
- {
- OnRxWindow2TimerEvent( );
- }
- LoRaMacFlags.Bits.MacDone = 1;
-
- // Trig OnMacCheckTimerEvent call as soon as possible
- TimerSetValue( &MacStateCheckTimer, 1000 );
- TimerStart( &MacStateCheckTimer );
-}
-
-static void OnRadioTxTimeout( void )
-{
- if( LoRaMacDeviceClass != CLASS_C )
- {
- Radio.Sleep( );
- }
- else
- {
- OnRxWindow2TimerEvent( );
- }
-
- McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT;
- MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT;
- LoRaMacFlags.Bits.MacDone = 1;
-}
-
-static void OnRadioRxError( void )
-{
- if( LoRaMacDeviceClass != CLASS_C )
- {
- Radio.Sleep( );
- }
- else
- {
- OnRxWindow2TimerEvent( );
- }
-
- if( RxSlot == 1 )
- {
- if( NodeAckRequested == true )
- {
- McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX2_ERROR;
- }
- MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX2_ERROR;
- LoRaMacFlags.Bits.MacDone = 1;
- }
-}
-
-static void OnRadioRxTimeout( void )
-{
- if( LoRaMacDeviceClass != CLASS_C )
- {
- Radio.Sleep( );
- }
- else
- {
- OnRxWindow2TimerEvent( );
- }
-
- if( RxSlot == 1 )
- {
- if( NodeAckRequested == true )
- {
- McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX2_TIMEOUT;
- }
- MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX2_TIMEOUT;
- LoRaMacFlags.Bits.MacDone = 1;
- }
-}
-
-static void OnMacStateCheckTimerEvent( void )
-{
- TimerStop( &MacStateCheckTimer );
- bool txTimeout = false;
-
- if( LoRaMacFlags.Bits.MacDone == 1 )
- {
- if( ( LoRaMacState & MAC_RX_ABORT ) == MAC_RX_ABORT )
- {
- LoRaMacState &= ~MAC_RX_ABORT;
- LoRaMacState &= ~MAC_TX_RUNNING;
- }
-
- if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) || ( ( LoRaMacFlags.Bits.McpsReq == 1 ) ) )
- {
- if( ( McpsConfirm.Status == LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT ) ||
- ( MlmeConfirm.Status == LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT ) )
- {
- // Stop transmit cycle due to tx timeout.
- LoRaMacState &= ~MAC_TX_RUNNING;
- McpsConfirm.NbRetries = AckTimeoutRetriesCounter;
- McpsConfirm.AckReceived = false;
- McpsConfirm.TxTimeOnAir = 0;
- txTimeout = true;
- }
- }
-
- if( ( NodeAckRequested == false ) && ( txTimeout == false ) )
- {
- if( LoRaMacFlags.Bits.MlmeReq == 1 )
- {
- if( MlmeConfirm.MlmeRequest == MLME_JOIN )
- {
- if( MlmeConfirm.Status == LORAMAC_EVENT_INFO_STATUS_OK )
- {
- UpLinkCounter = 0;
- }
- // Join messages aren't repeated automatically
- ChannelsNbRepCounter = ChannelsNbRep;
- }
- }
- if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) || ( ( LoRaMacFlags.Bits.McpsReq == 1 ) ) )
- {
- if( ( ChannelsNbRepCounter >= ChannelsNbRep ) || ( LoRaMacFlags.Bits.McpsInd == 1 ) )
- {
- ChannelsNbRepCounter = 0;
-
- AdrAckCounter++;
- if( IsUpLinkCounterFixed == false )
- {
- UpLinkCounter++;
- }
-
- LoRaMacState &= ~MAC_TX_RUNNING;
- }
- else
- {
- LoRaMacFlags.Bits.MacDone = 0;
- // Sends the same frame again
- ScheduleTx( );
- }
- }
- }
-
- if( LoRaMacFlags.Bits.McpsInd == 1 )
- {
- if( ( McpsConfirm.AckReceived == true ) || ( AckTimeoutRetriesCounter > AckTimeoutRetries ) )
- {
- AckTimeoutRetry = false;
- NodeAckRequested = false;
- if( IsUpLinkCounterFixed == false )
- {
- UpLinkCounter++;
- }
- McpsConfirm.NbRetries = AckTimeoutRetriesCounter;
-
- LoRaMacState &= ~MAC_TX_RUNNING;
- }
- }
-
- if( ( AckTimeoutRetry == true ) && ( ( LoRaMacState & MAC_TX_DELAYED ) == 0 ) )
- {
- AckTimeoutRetry = false;
- if( ( AckTimeoutRetriesCounter < AckTimeoutRetries ) && ( AckTimeoutRetriesCounter <= MAX_ACK_RETRIES ) )
- {
- AckTimeoutRetriesCounter++;
-
- if( ( AckTimeoutRetriesCounter % 2 ) == 1 )
- {
- ChannelsDatarate = MAX( ChannelsDatarate - 1, LORAMAC_TX_MIN_DATARATE );
- // Check if new datarate is valid for the Payload length
- if( ValidatePayloadLength( LoRaMacBufferPktLen - 13, ChannelsDatarate, 0 ) == false )
- {
- // If invalid payload length, then revert to previous datarate
- ChannelsDatarate++;
- }
- }
- LoRaMacFlags.Bits.MacDone = 0;
- // Sends the same frame again
- ScheduleTx( );
- }
- else
- {
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- // Re-enable default channels LC1, LC2, LC3
- ChannelsMask[0] = ChannelsMask[0] | ( LC( 1 ) + LC( 2 ) + LC( 3 ) );
-#elif !defined( USE_BAND_915 ) && !defined( USE_BAND_915_HYBRID )
- #error "Please define a frequency band in the compiler options."
-#endif
- LoRaMacState &= ~MAC_TX_RUNNING;
-
- NodeAckRequested = false;
- McpsConfirm.AckReceived = false;
- McpsConfirm.NbRetries = AckTimeoutRetriesCounter;
- if( IsUpLinkCounterFixed == false )
- {
- UpLinkCounter++;
- }
- }
- }
- }
- // Handle reception for Class B and Class C
- if( ( LoRaMacState & MAC_RX ) == MAC_RX )
- {
- LoRaMacState &= ~MAC_RX;
- }
- if( LoRaMacState == MAC_IDLE )
- {
- if( LoRaMacFlags.Bits.McpsReq == 1 )
- {
- LoRaMacPrimitives->MacMcpsConfirm( &McpsConfirm );
- LoRaMacFlags.Bits.McpsReq = 0;
- }
-
- if( LoRaMacFlags.Bits.MlmeReq == 1 )
- {
- LoRaMacPrimitives->MacMlmeConfirm( &MlmeConfirm );
- LoRaMacFlags.Bits.MlmeReq = 0;
- }
-
- LoRaMacFlags.Bits.MacDone = 0;
- }
- else
- {
- // Operation not finished restart timer
- TimerSetValue( &MacStateCheckTimer, MAC_STATE_CHECK_TIMEOUT );
- TimerStart( &MacStateCheckTimer );
- }
-
- if( LoRaMacFlags.Bits.McpsInd == 1 )
- {
- LoRaMacPrimitives->MacMcpsIndication( &McpsIndication );
- LoRaMacFlags.Bits.McpsInd = 0;
- }
-}
-
-static void OnTxDelayedTimerEvent( void )
-{
- TimerStop( &TxDelayedTimer );
- LoRaMacState &= ~MAC_TX_DELAYED;
-
- ScheduleTx( );
-}
-
-static void OnRxWindow1TimerEvent( void )
-{
- uint16_t symbTimeout = 5; // DR_2, DR_1, DR_0
- int8_t datarate = 0;
- uint32_t bandwidth = 0; // LoRa 125 kHz
-
- TimerStop( &RxWindowTimer1 );
- RxSlot = 0;
-
- if( LoRaMacDeviceClass == CLASS_C )
- {
- Radio.Standby( );
- }
-
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- datarate = ChannelsDatarate - Rx1DrOffset;
- if( datarate < 0 )
- {
- datarate = DR_0;
- }
-
- // For higher datarates, we increase the number of symbols generating a Rx Timeout
- if( ( datarate == DR_3 ) || ( datarate == DR_4 ) )
- { // DR_4, DR_3
- symbTimeout = 8;
- }
- else if( datarate == DR_5 )
- {
- symbTimeout = 10;
- }
- else if( datarate == DR_6 )
- {// LoRa 250 kHz
- bandwidth = 1;
- symbTimeout = 14;
- }
- RxWindowSetup( Channels[Channel].Frequency, datarate, bandwidth, symbTimeout, false );
-#elif ( defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID ) )
- datarate = datarateOffsets[ChannelsDatarate][Rx1DrOffset];
- if( datarate < 0 )
- {
- datarate = DR_0;
- }
- // For higher datarates, we increase the number of symbols generating a Rx Timeout
- switch( datarate )
- {
- case DR_0: // SF10 - BW125
- symbTimeout = 5;
- break;
-
- case DR_1: // SF9 - BW125
- case DR_2: // SF8 - BW125
- case DR_8: // SF12 - BW500
- case DR_9: // SF11 - BW500
- case DR_10: // SF10 - BW500
- symbTimeout = 8;
- break;
-
- case DR_3: // SF7 - BW125
- case DR_11: // SF9 - BW500
- symbTimeout = 10;
- break;
-
- case DR_4: // SF8 - BW500
- case DR_12: // SF8 - BW500
- symbTimeout = 14;
- break;
-
- case DR_13: // SF7 - BW500
- symbTimeout = 16;
- break;
- default:
- break;
- }
- if( datarate >= DR_4 )
- {// LoRa 500 kHz
- bandwidth = 2;
- }
- RxWindowSetup( 923.3e6 + ( Channel % 8 ) * 600e3, datarate, bandwidth, symbTimeout, false );
-#else
- #error "Please define a frequency band in the compiler options."
-#endif
-}
-
-static void OnRxWindow2TimerEvent( void )
-{
- uint16_t symbTimeout = 5; // DR_2, DR_1, DR_0
- uint32_t bandwidth = 0; // LoRa 125 kHz
-
- TimerStop( &RxWindowTimer2 );
- RxSlot = 1;
-
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- // For higher datarates, we increase the number of symbols generating a Rx Timeout
- if( ( Rx2Channel.Datarate == DR_3 ) || ( Rx2Channel.Datarate == DR_4 ) )
- { // DR_4, DR_3
- symbTimeout = 8;
- }
- else if( Rx2Channel.Datarate == DR_5 )
- {
- symbTimeout = 10;
- }
- else if( Rx2Channel.Datarate == DR_6 )
- {// LoRa 250 kHz
- bandwidth = 1;
- symbTimeout = 14;
- }
-#elif ( defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID ) )
- // For higher datarates, we increase the number of symbols generating a Rx Timeout
- switch( Rx2Channel.Datarate )
- {
- case DR_0: // SF10 - BW125
- symbTimeout = 5;
- break;
-
- case DR_1: // SF9 - BW125
- case DR_2: // SF8 - BW125
- case DR_8: // SF12 - BW500
- case DR_9: // SF11 - BW500
- case DR_10: // SF10 - BW500
- symbTimeout = 8;
- break;
-
- case DR_3: // SF7 - BW125
- case DR_11: // SF9 - BW500
- symbTimeout = 10;
- break;
-
- case DR_4: // SF8 - BW500
- case DR_12: // SF8 - BW500
- symbTimeout = 14;
- break;
-
- case DR_13: // SF7 - BW500
- symbTimeout = 16;
- break;
- default:
- break;
- }
- if( Rx2Channel.Datarate >= DR_4 )
- {// LoRa 500 kHz
- bandwidth = 2;
- }
-#else
- #error "Please define a frequency band in the compiler options."
-#endif
- if( LoRaMacDeviceClass != CLASS_C )
- {
- RxWindowSetup( Rx2Channel.Frequency, Rx2Channel.Datarate, bandwidth, symbTimeout, false );
- }
- else
- {
- RxWindowSetup( Rx2Channel.Frequency, Rx2Channel.Datarate, bandwidth, symbTimeout, true );
- }
-}
-
-static void OnAckTimeoutTimerEvent( void )
-{
- TimerStop( &AckTimeoutTimer );
-
- if( NodeAckRequested == true )
- {
- AckTimeoutRetry = true;
- LoRaMacState &= ~MAC_ACK_REQ;
- }
- if( LoRaMacDeviceClass == CLASS_C )
- {
- LoRaMacFlags.Bits.MacDone = 1;
- }
-}
-
-#if defined( USE_BAND_915 )
-uint8_t GetNextJoinChannel( uint8_t* enabledChannels, uint8_t nbEnabledChannels )
-{
- int8_t channel = -1;
- uint8_t block;
- uint8_t i;
-
- // Use 125KHz channel
- if( ChannelsDatarate < DR_4 )
- {
- block = JoinBlock[NextJoinBlock];
- NextJoinBlock = (NextJoinBlock + 1) % 8;
-
- // If next block is greater than max block then randomly select the next block
- if( block >= 8 )
- block = randr(0, 7);
-
- // Start search for next join channel at the selected block
- for(i = 0; ( i < 8 ) && ( channel == -1 ); i++)
- {
- uint8_t curBlock = (block + i) % 8;
- uint8_t chMask;
-
- // Cycle through all blocks before using a previously used block
- if( ( ( JoinBlocksRemaining & ( 1 << curBlock ) ) != 0) )
- {
- chMask = ( ChannelsMaskRemaining[curBlock/2] >> ( curBlock & 1 ? 8 : 0 ) ) & 0xff;
- if( chMask != 0)
- {
- channel = randr(0, 7);
- for(uint8_t i = 0; ( i < 8 ); i++)
- {
- if( ( chMask & ( 1 << channel ) ) != 0 )
- {
- uint16_t chMaskTmp = ( 1 << channel );
- chMaskTmp = chMaskTmp << ( curBlock & 1 ? 8 : 0 );
- channel = channel + ( curBlock * 8 );
- JoinBlocksRemaining &= ~(1 << curBlock);
- ChannelsMaskRemaining[curBlock/2] &= ~chMaskTmp;
- if( ( JoinBlocksRemaining == 0 ) )
- {
- JoinBlocksRemaining = 0xFF;
- }
- break;
- }
- else
- {
- channel = ( channel + 1 ) % 8;
- }
- }
- }
- }
- }
-
- // No next channel case should never happen since ScheduleTx has already
- // checked for at least one enabled channel and if none re-enabled all channels.
- // But if we find ourselves without a channel then randomly select one
- if ( i >= 8 )
- {
- channel = randr( 0, 63 );
- }
- }
- // Use 500 KHz channel
- else
- {
- channel = randr( 0, 7 );
- for(i = 0; i < 8; i++)
- {
- uint8_t curChannel = (channel + i) % 8;
-
- if( ( ( Join500KHzRemaining & ( 1 << curChannel ) ) != 0 ) )
- {
- Join500KHzRemaining &= ~(1 << curChannel);
- channel = 64 + curChannel;
- if( Join500KHzRemaining == 0 )
- {
- Join500KHzRemaining = 0xFF;
- }
- break;
- }
- }
- }
-
- for( i = 0; i < nbEnabledChannels; i++ )
- {
- if( enabledChannels[i] == channel )
- break;
- }
-
- if( i == nbEnabledChannels )
- {
- channel = enabledChannels[randr( 0, nbEnabledChannels - 1 )];
- }
-
- LastJoinBlock = channel / 8;
-
- return channel;
-}
-#endif
-
-static bool SetNextChannel( TimerTime_t* time )
-{
- uint8_t nbEnabledChannels = 0;
- uint8_t delayTx = 0;
- uint8_t enabledChannels[LORA_MAX_NB_CHANNELS];
- TimerTime_t nextTxDelay = ( TimerTime_t )( -1 );
-
- memset1( enabledChannels, 0, LORA_MAX_NB_CHANNELS );
-
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- if( CountNbEnabled125kHzChannels( ChannelsMaskRemaining ) == 0 )
- { // Restore default channels
- memcpy1( ( uint8_t* ) ChannelsMaskRemaining, ( uint8_t* ) ChannelsMask, 8 );
- }
- if( ( ChannelsDatarate >= DR_4 ) && ( ( ChannelsMaskRemaining[4] & 0x00FF ) == 0 ) )
- { // Make sure, that the channels are activated
- ChannelsMaskRemaining[4] = ChannelsMask[4];
- }
-#else
- if( CountBits( ChannelsMask[0], 16 ) == 0 )
- {
- // Re-enable default channels, if no channel is enabled
- ChannelsMask[0] = ChannelsMask[0] | ( LC( 1 ) + LC( 2 ) + LC( 3 ) );
- }
-#endif
-
- // Update Aggregated duty cycle
- if( AggregatedTimeOff <= TimerGetElapsedTime( AggregatedLastTxDoneTime ) )
- {
- AggregatedTimeOff = 0;
-
- // Update bands Time OFF
- for( uint8_t i = 0; i < LORA_MAX_NB_BANDS; i++ )
- {
- if( DutyCycleOn == true )
- {
- if( Bands[i].TimeOff <= TimerGetElapsedTime( Bands[i].LastTxDoneTime ) )
- {
- Bands[i].TimeOff = 0;
- }
- if( Bands[i].TimeOff != 0 )
- {
- nextTxDelay = MIN( Bands[i].TimeOff -
- TimerGetElapsedTime( Bands[i].LastTxDoneTime ),
- nextTxDelay );
- }
- }
- else
- {
- nextTxDelay = 0;
- Bands[i].TimeOff = 0;
- }
- }
-
- // Search how many channels are enabled
- for( uint8_t i = 0, k = 0; i < LORA_MAX_NB_CHANNELS; i += 16, k++ )
- {
- for( uint8_t j = 0; j < 16; j++ )
- {
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- if( ( ChannelsMaskRemaining[k] & ( 1 << j ) ) != 0 )
-#else
- if( ( ChannelsMask[k] & ( 1 << j ) ) != 0 )
-#endif
- {
- if( Channels[i + j].Frequency == 0 )
- { // Check if the channel is enabled
- continue;
- }
-#if defined( USE_BAND_868 ) || defined( USE_BAND_433 ) || defined( USE_BAND_780 )
- if( IsLoRaMacNetworkJoined == false )
- {
- if( ( JOIN_CHANNELS & ( 1 << j ) ) == 0 )
- {
- continue;
- }
- }
-#endif
- if( ( ( Channels[i + j].DrRange.Fields.Min <= ChannelsDatarate ) &&
- ( ChannelsDatarate <= Channels[i + j].DrRange.Fields.Max ) ) == false )
- { // Check if the current channel selection supports the given datarate
- continue;
- }
- if( Bands[Channels[i + j].Band].TimeOff > 0 )
- { // Check if the band is available for transmission
- delayTx++;
- continue;
- }
- enabledChannels[nbEnabledChannels++] = i + j;
- }
- }
- }
- }
- else
- {
- delayTx++;
- nextTxDelay = AggregatedTimeOff - TimerGetElapsedTime( AggregatedLastTxDoneTime );
- }
-
- if( nbEnabledChannels > 0 )
- {
-#if defined( USE_BAND_915 )
- if ( IsLoRaMacNetworkJoined == false )
- {
- Channel = GetNextJoinChannel(enabledChannels, nbEnabledChannels);
- }
- // Send first uplink on channel from same sub-band as the join
- else if( ( UpLinkCounter == 1 ) && ( LastJoinBlock != -1 ) )
- {
- uint8_t i;
- uint8_t blockFirstChannel = LastJoinBlock*8;
-
- Channel = randr( blockFirstChannel, blockFirstChannel + 7 );
-
- // Check channel is enabled
- for( i = 0; i < nbEnabledChannels; i++ )
- {
- if( Channel == enabledChannels[i] )
- break;
- }
-
- // If channel is not enabled fallback to selecting from the list of
- // enabled channels
- if (i == nbEnabledChannels)
- {
- Channel = enabledChannels[randr( 0, nbEnabledChannels - 1 )];
- }
- }
- else
-#endif
- {
- Channel = enabledChannels[randr( 0, nbEnabledChannels - 1 )];
- }
-
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- if( Channel < ( LORA_MAX_NB_CHANNELS - 8 ) )
- {
- DisableChannelInMask( Channel, ChannelsMaskRemaining );
- }
-#endif
- *time = 0;
- return true;
- }
- else
- {
- if( delayTx > 0 )
- {
- // Delay transmission due to AggregatedTimeOff or to a band time off
- *time = nextTxDelay;
- return true;
- }
- // Datarate not supported by any channel
- *time = 0;
- return false;
- }
-}
-
-static void SetPublicNetwork( bool enable )
-{
- PublicNetwork = enable;
- Radio.SetModem( MODEM_LORA );
- if( PublicNetwork == true )
- {
- // Change LoRa modem SyncWord
- Radio.Write( REG_LR_SYNCWORD, LORA_MAC_PUBLIC_SYNCWORD );
- }
- else
- {
- // Change LoRa modem SyncWord
- Radio.Write( REG_LR_SYNCWORD, LORA_MAC_PRIVATE_SYNCWORD );
- }
-}
-
-static void RxWindowSetup( uint32_t freq, int8_t datarate, uint32_t bandwidth, uint16_t timeout, bool rxContinuous )
-{
- uint8_t downlinkDatarate = Datarates[datarate];
- RadioModems_t modem;
-
- if( Radio.GetStatus( ) == RF_IDLE )
- {
- Radio.SetChannel( freq );
-
- // Store downlink datarate
- McpsIndication.RxDatarate = ( uint8_t ) datarate;
-
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- if( datarate == DR_7 )
- {
- modem = MODEM_FSK;
- Radio.SetRxConfig( modem, 50e3, downlinkDatarate * 1e3, 0, 83.333e3, 5, 0, false, 0, true, 0, 0, false, rxContinuous );
- }
- else
- {
- modem = MODEM_LORA;
- Radio.SetRxConfig( modem, bandwidth, downlinkDatarate, 1, 0, 8, timeout, false, 0, false, 0, 0, true, rxContinuous );
- }
-#elif defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- modem = MODEM_LORA;
- Radio.SetRxConfig( modem, bandwidth, downlinkDatarate, 1, 0, 8, timeout, false, 0, false, 0, 0, true, rxContinuous );
-#endif
-
- if( RepeaterSupport == true )
- {
- Radio.SetMaxPayloadLength( modem, MaxPayloadOfDatarateRepeater[datarate] + LORA_MAC_FRMPAYLOAD_OVERHEAD );
- }
- else
- {
- Radio.SetMaxPayloadLength( modem, MaxPayloadOfDatarate[datarate] + LORA_MAC_FRMPAYLOAD_OVERHEAD );
- }
-
- if( rxContinuous == false )
- {
- Radio.Rx( MaxRxWindow );
- }
- else
- {
- Radio.Rx( 0 ); // Continuous mode
- }
- }
-}
-
-static bool Rx2FreqInRange( uint32_t freq )
-{
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- if( Radio.CheckRfFrequency( freq ) == true )
-#elif ( defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID ) )
- if( ( Radio.CheckRfFrequency( freq ) == true ) &&
- ( freq >= LORAMAC_FIRST_RX2_CHANNEL ) &&
- ( freq <= LORAMAC_LAST_RX2_CHANNEL ) &&
- ( ( ( freq - ( uint32_t ) LORAMAC_FIRST_RX2_CHANNEL ) % ( uint32_t ) LORAMAC_STEPWIDTH_RX2_CHANNEL ) == 0 ) )
-#endif
- {
- return true;
- }
- return false;
-}
-
-
-static bool ValidatePayloadLength( uint8_t lenN, int8_t datarate, uint8_t fOptsLen )
-{
- uint16_t maxN = 0;
- uint16_t payloadSize = 0;
-
- // Get the maximum payload length
- if( RepeaterSupport == true )
- {
- maxN = MaxPayloadOfDatarateRepeater[datarate];
- }
- else
- {
- maxN = MaxPayloadOfDatarate[datarate];
- }
-
- // Calculate the resulting payload size
- payloadSize = ( lenN + fOptsLen );
-
- // Validation of the application payload size
- if( ( payloadSize <= maxN ) && ( payloadSize <= LORAMAC_PHY_MAXPAYLOAD ) )
- {
- return true;
- }
- return false;
-}
-
-static uint8_t CountBits( uint16_t mask, uint8_t nbBits )
-{
- uint8_t nbActiveBits = 0;
-
- for( uint8_t j = 0; j < nbBits; j++ )
- {
- if( ( mask & ( 1 << j ) ) == ( 1 << j ) )
- {
- nbActiveBits++;
- }
- }
- return nbActiveBits;
-}
-
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
-static uint8_t CountNbEnabled125kHzChannels( uint16_t *channelsMask )
-{
- uint8_t nb125kHzChannels = 0;
-
- for( uint8_t i = 0, k = 0; i < LORA_MAX_NB_CHANNELS - 8; i += 16, k++ )
- {
- nb125kHzChannels += CountBits( channelsMask[k], 16 );
- }
-
- return nb125kHzChannels;
-}
-
-#if defined( USE_BAND_915_HYBRID )
-static void ReenableChannels( uint16_t mask, uint16_t* channelMask )
-{
- uint16_t blockMask = mask;
-
- for( uint8_t i = 0, j = 0; i < 4; i++, j += 2 )
- {
- channelMask[i] = 0;
- if( ( blockMask & ( 1 << j ) ) != 0 )
- {
- channelMask[i] |= 0x00FF;
- }
- if( ( blockMask & ( 1 << ( j + 1 ) ) ) != 0 )
- {
- channelMask[i] |= 0xFF00;
- }
- }
- channelMask[4] = blockMask;
- channelMask[5] = 0x0000;
-}
-
-static bool ValidateChannelMask( uint16_t* channelMask )
-{
- bool chanMaskState = false;
- uint16_t block1 = 0;
- uint16_t block2 = 0;
- uint8_t index = 0;
-
- for( uint8_t i = 0; i < 4; i++ )
- {
- block1 = channelMask[i] & 0x00FF;
- block2 = channelMask[i] & 0xFF00;
-
- if( ( CountBits( block1, 16 ) > 5 ) && ( chanMaskState == false ) )
- {
- channelMask[i] &= block1;
- channelMask[4] = 1 << ( i * 2 );
- chanMaskState = true;
- index = i;
- }
- else if( ( CountBits( block2, 16 ) > 5 ) && ( chanMaskState == false ) )
- {
- channelMask[i] &= block2;
- channelMask[4] = 1 << ( i * 2 + 1 );
- chanMaskState = true;
- index = i;
- }
- }
-
- // Do only change the channel mask, if we have found a valid block.
- if( chanMaskState == true )
- {
- for( uint8_t i = 0; i < 4; i++ )
- {
- if( i != index )
- {
- channelMask[i] = 0;
- }
- }
- }
- return chanMaskState;
-}
-#endif
-#endif
-
-static int8_t LimitTxPower( int8_t txPower )
-{
- int8_t resultTxPower = txPower;
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- if( ( ChannelsDatarate == DR_4 ) ||
- ( ( ChannelsDatarate >= DR_8 ) && ( ChannelsDatarate <= DR_13 ) ) )
- {// Limit tx power to max 26dBm
- resultTxPower = MAX( txPower, TX_POWER_26_DBM );
- }
- else
- {
- if( CountNbEnabled125kHzChannels( ChannelsMask ) < FRQ_HOP_CHNLS_MIN )
- {// Limit tx power to max 21dBm
- resultTxPower = MAX( txPower, TX_POWER_20_DBM );
- }
- }
-#endif
- return resultTxPower;
-}
-
-static bool ValueInRange( int8_t value, int8_t min, int8_t max )
-{
- if( ( value >= min ) && ( value <= max ) )
- {
- return true;
- }
- return false;
-}
-
-static bool DisableChannelInMask( uint8_t id, uint16_t* mask )
-{
- uint8_t index = 0;
- index = id / 16;
-
- if( ( index > 4 ) || ( id >= LORA_MAX_NB_CHANNELS ) )
- {
- return false;
- }
-
- // Deactivate channel
- mask[index] &= ~( 1 << ( id % 16 ) );
-
- return true;
-}
-
-static bool AdrNextDr( bool adrEnabled, bool isTx, int8_t* datarateOut, int8_t* txpowerOut )
-{
- bool adrAckReq = false;
- int8_t datarate = ChannelsDatarate;
- int8_t txpower = ChannelsTxPower;
-
- if( adrEnabled == true )
- {
- /* Request ADR Ack Request (including at lowest available datarate) */
- adrAckReq = AdrAckCounter >= ADR_ACK_LIMIT ? true : false;
-
- if( AdrAckCounter >= (ADR_ACK_LIMIT + ADR_ACK_DELAY) )
- {
- // Step up power
- txpower = LORAMAC_DEFAULT_TX_POWER;
-
- if( ( AdrAckCounter % ADR_ACK_DELAY ) == 0 )
- {
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- if( datarate > LORAMAC_TX_MIN_DATARATE )
- {
- datarate--;
- }
-
- if( datarate == LORAMAC_TX_MIN_DATARATE )
- {
- if( isTx == true )
- {
- // Re-enable default channels LC1, LC2, LC3
- ChannelsMask[0] = ChannelsMask[0] | ( LC( 1 ) + LC( 2 ) + LC( 3 ) );
- }
- }
-#elif defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- if( datarate > LORAMAC_TX_MIN_DATARATE )
- {
- if ( datarate == DR_8)
- datarate = DR_4;
- else
- datarate--;
- }
- else if( isTx == true )
- {
-#if defined( USE_BAND_915 )
- // Re-enable default channels
- ChannelsMask[0] = 0xFFFF;
- ChannelsMask[1] = 0xFFFF;
- ChannelsMask[2] = 0xFFFF;
- ChannelsMask[3] = 0xFFFF;
- ChannelsMask[4] = 0x00FF;
- ChannelsMask[5] = 0x0000;
-#else // defined( USE_BAND_915_HYBRID )
- // Re-enable default channels
- ChannelsMask[0] = 0x00FF;
- ChannelsMask[1] = 0x0000;
- ChannelsMask[2] = 0x0000;
- ChannelsMask[3] = 0x0000;
- ChannelsMask[4] = 0x0001;
- ChannelsMask[5] = 0x0000;
-#endif
- }
-#else
-#error "Please define a frequency band in the compiler options."
-#endif
- }
- }
- }
-
- if(datarateOut != NULL)
- *datarateOut = datarate;
-
- if(txpowerOut != NULL)
- *txpowerOut = txpower;
-
- return adrAckReq;
-
-}
-
-static LoRaMacStatus_t AddMacCommand( uint8_t cmd, uint8_t p1, uint8_t p2 )
-{
- LoRaMacStatus_t status = LORAMAC_STATUS_BUSY;
- // The maximum buffer length must take MAC commands to re-send into account.
- uint8_t bufLen = LORA_MAC_COMMAND_MAX_LENGTH - MacCommandsBufferToRepeatIndex;
-
- switch( cmd )
- {
- case MOTE_MAC_LINK_CHECK_REQ:
- if( MacCommandsBufferIndex < bufLen )
- {
- MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
- // No payload for this command
- status = LORAMAC_STATUS_OK;
- }
- break;
- case MOTE_MAC_LINK_ADR_ANS:
- if( MacCommandsBufferIndex < ( bufLen - 1 ) )
- {
- MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
- // Margin
- MacCommandsBuffer[MacCommandsBufferIndex++] = p1;
- status = LORAMAC_STATUS_OK;
- }
- break;
- case MOTE_MAC_DUTY_CYCLE_ANS:
- if( MacCommandsBufferIndex < bufLen )
- {
- MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
- // No payload for this answer
- status = LORAMAC_STATUS_OK;
- }
- break;
- case MOTE_MAC_RX_PARAM_SETUP_ANS:
- if( MacCommandsBufferIndex < ( bufLen - 1 ) )
- {
- MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
- // Status: Datarate ACK, Channel ACK
- MacCommandsBuffer[MacCommandsBufferIndex++] = p1;
- status = LORAMAC_STATUS_OK;
- }
- break;
- case MOTE_MAC_DEV_STATUS_ANS:
- if( MacCommandsBufferIndex < ( bufLen - 2 ) )
- {
- MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
- // 1st byte Battery
- // 2nd byte Margin
- MacCommandsBuffer[MacCommandsBufferIndex++] = p1;
- MacCommandsBuffer[MacCommandsBufferIndex++] = p2;
- status = LORAMAC_STATUS_OK;
- }
- break;
- case MOTE_MAC_NEW_CHANNEL_ANS:
- if( MacCommandsBufferIndex < ( bufLen - 1 ) )
- {
- MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
- // Status: Datarate range OK, Channel frequency OK
- MacCommandsBuffer[MacCommandsBufferIndex++] = p1;
- status = LORAMAC_STATUS_OK;
- }
- break;
- case MOTE_MAC_RX_TIMING_SETUP_ANS:
- if( MacCommandsBufferIndex < bufLen )
- {
- MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
- // No payload for this answer
- status = LORAMAC_STATUS_OK;
- }
- break;
- default:
- return LORAMAC_STATUS_SERVICE_UNKNOWN;
- }
- if( status == LORAMAC_STATUS_OK )
- {
- MacCommandsInNextTx = true;
- }
- return status;
-}
-
-static uint8_t ParseMacCommandsToRepeat( uint8_t* cmdBufIn, uint8_t length, uint8_t* cmdBufOut )
-{
- uint8_t i = 0;
- uint8_t cmdCount = 0;
-
- if( ( cmdBufIn == NULL ) || ( cmdBufOut == NULL ) )
- {
- return 0;
- }
-
- for( i = 0; i < length; i++ )
- {
- switch( cmdBufIn[i] )
- {
- case MOTE_MAC_RX_PARAM_SETUP_ANS:
- {
- cmdBufOut[cmdCount++] = cmdBufIn[i++];
- cmdBufOut[cmdCount++] = cmdBufIn[i++];
- cmdBufOut[cmdCount++] = cmdBufIn[i];
- break;
- }
- case MOTE_MAC_RX_TIMING_SETUP_ANS:
- {
- cmdBufOut[cmdCount++] = cmdBufIn[i];
- break;
- }
- default:
- break;
- }
- }
-
- return cmdCount;
-}
-
-static void ProcessMacCommands( uint8_t *payload, uint8_t macIndex, uint8_t commandsSize, uint8_t snr )
-{
- uint8_t validLinkAdrCmds = 0;
- int8_t txPower = 0;
- int8_t datarate = 0;
- uint8_t nbRep = 0;
- uint16_t channelsMask[6] = {0,0,0,0,0,0};
- uint8_t LinkAdrMacCmdBufferIndex = 0;
-
- while( macIndex < commandsSize )
- {
- // Decode Frame MAC commands
- switch( payload[macIndex++] )
- {
- case SRV_MAC_LINK_CHECK_ANS:
- MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
- MlmeConfirm.DemodMargin = payload[macIndex++];
- MlmeConfirm.NbGateways = payload[macIndex++];
- break;
- case SRV_MAC_LINK_ADR_REQ:
- {
- uint8_t chMaskCntl = 0;
- uint8_t status = 0x07;
- uint16_t chMask;
-
- datarate = payload[macIndex++];
- txPower = datarate & 0x0F;
- datarate = ( datarate >> 4 ) & 0x0F;
-
- if( ( AdrCtrlOn == false ) &&
- ( ( ChannelsDatarate != datarate ) || ( ChannelsTxPower != txPower ) ) )
- { // ADR disabled don't handle ADR requests if server tries to change datarate or txpower
- // Answer the server with fail status
- // Power ACK = 0
- // Data rate ACK = 0
- // Channel mask = 0
- AddMacCommand( MOTE_MAC_LINK_ADR_ANS, 0, 0 );
- macIndex += 3; // Skip over the remaining bytes of the request
- break;
- }
- else if ( validLinkAdrCmds++ == 0 )
- {
- // Initialize local copy of the channels mask array
- for(uint8_t i = 0; i < 6; i++ )
- {
- channelsMask[i] = ChannelsMask[i];
- }
- }
-
-
- chMask = ( uint16_t )payload[macIndex++];
- chMask |= ( uint16_t )payload[macIndex++] << 8;
-
- nbRep = payload[macIndex++];
- chMaskCntl = ( nbRep >> 4 ) & 0x07;
- nbRep &= 0x0F;
- if( nbRep == 0 )
- {
- nbRep = 1;
- }
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- if( ( chMaskCntl == 0 ) && ( chMask == 0 ) )
- {
- status &= 0xFE; // Channel mask KO
- }
- else if( ( ( chMaskCntl >= 1 ) && ( chMaskCntl <= 5 )) ||
- ( chMaskCntl >= 7 ) )
- {
- // RFU
- status &= 0xFE; // Channel mask KO
- }
- else
- {
- for( i = 0; i < LORA_MAX_NB_CHANNELS; i++ )
- {
- if( chMaskCntl == 6 )
- {
- if( Channels[i].Frequency != 0 )
- {
- chMask |= 1 << i;
- }
- }
- else
- {
- if( ( ( chMask & ( 1 << i ) ) != 0 ) &&
- ( Channels[i].Frequency == 0 ) )
- {// Trying to enable an undefined channel
- status &= 0xFE; // Channel mask KO
- }
- }
- }
- channelsMask[0] = chMask;
- }
-#elif defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- if( chMaskCntl < 4 )
- {
- channelsMask[chMaskCntl] = chMask;
- }
- else if( chMaskCntl == 6 )
- {
- // Enable all 125 kHz channels
- for( uint8_t i = 0, k = 0; i < LORA_MAX_NB_CHANNELS - 8; i += 16, k++ )
- {
- for( uint8_t j = 0; j < 16; j++ )
- {
- if( Channels[i + j].Frequency != 0 )
- {
- channelsMask[k] |= 1 << j;
- }
- }
- }
- // channel mask applied to 500 kHz channels
- channelsMask[4] = chMask;
- }
- else if( chMaskCntl == 7 )
- {
- // Disable all 125 kHz channels
- channelsMask[0] = 0x0000;
- channelsMask[1] = 0x0000;
- channelsMask[2] = 0x0000;
- channelsMask[3] = 0x0000;
-
- // channel mask applied to 500 kHz channels
- channelsMask[4] = chMask;
- }
- else
- {
- // RFU
- status &= 0xFE; // Channel mask KO
- }
-#else
- #error "Please define a frequency band in the compiler options."
-#endif
- if( ValueInRange( datarate, LORAMAC_TX_MIN_DATARATE, LORAMAC_TX_MAX_DATARATE ) == false )
- {
- status &= 0xFD; // Datarate KO
- }
-
- //
- // Remark MaxTxPower = 0 and MinTxPower = 5
- //
- if( ValueInRange( txPower, LORAMAC_MAX_TX_POWER, LORAMAC_MIN_TX_POWER ) == false )
- {
- status &= 0xFB; // TxPower KO
- }
-
-
- // Save the mac command status location for possible channel mask KO later
- LinkAdrMacCmdBufferIndex = MacCommandsBufferIndex;
-
- AddMacCommand( MOTE_MAC_LINK_ADR_ANS, status, 0 );
- }
- break;
- case SRV_MAC_DUTY_CYCLE_REQ:
- MaxDCycle = payload[macIndex++];
- AggregatedDCycle = 1 << MaxDCycle;
- AddMacCommand( MOTE_MAC_DUTY_CYCLE_ANS, 0, 0 );
- break;
- case SRV_MAC_RX_PARAM_SETUP_REQ:
- {
- uint8_t status = 0x07;
- int8_t datarate = 0;
- int8_t drOffset = 0;
- uint32_t freq = 0;
-
- drOffset = ( payload[macIndex] >> 4 ) & 0x07;
- datarate = payload[macIndex] & 0x0F;
- macIndex++;
-
- freq = ( uint32_t )payload[macIndex++];
- freq |= ( uint32_t )payload[macIndex++] << 8;
- freq |= ( uint32_t )payload[macIndex++] << 16;
- freq *= 100;
-
- if( Rx2FreqInRange( freq ) == false )
- {
- status &= 0xFE; // Channel frequency KO
- }
-
- if( ValueInRange( datarate, LORAMAC_RX_MIN_DATARATE, LORAMAC_RX_MAX_DATARATE ) == false )
- {
- status &= 0xFD; // Datarate KO
- }
-#if ( defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID ) )
- if( ( ValueInRange( datarate, DR_5, DR_7 ) == true ) ||
- ( datarate > DR_13 ) )
- {
- status &= 0xFD; // Datarate KO
- }
-#endif
- if( ValueInRange( drOffset, LORAMAC_MIN_RX1_DR_OFFSET, LORAMAC_MAX_RX1_DR_OFFSET ) == false )
- {
- status &= 0xFB; // Rx1DrOffset range KO
- }
-
- if( ( status & 0x07 ) == 0x07 )
- {
- Rx2Channel.Datarate = datarate;
- Rx2Channel.Frequency = freq;
- Rx1DrOffset = drOffset;
- }
- AddMacCommand( MOTE_MAC_RX_PARAM_SETUP_ANS, status, 0 );
- }
- break;
- case SRV_MAC_DEV_STATUS_REQ:
- {
- uint8_t batteryLevel = BAT_LEVEL_NO_MEASURE;
- if( ( LoRaMacCallbacks != NULL ) && ( LoRaMacCallbacks->GetBatteryLevel != NULL ) )
- {
- batteryLevel = LoRaMacCallbacks->GetBatteryLevel( );
- }
- AddMacCommand( MOTE_MAC_DEV_STATUS_ANS, batteryLevel, snr );
- break;
- }
- case SRV_MAC_NEW_CHANNEL_REQ:
- {
- uint8_t status = 0x03;
-
-#if ( defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID ) )
- status &= 0xFC; // Channel frequency and datarate KO
- macIndex += 5;
-#else
- int8_t channelIndex = 0;
- ChannelParams_t chParam;
-
- channelIndex = payload[macIndex++];
- chParam.Frequency = ( uint32_t )payload[macIndex++];
- chParam.Frequency |= ( uint32_t )payload[macIndex++] << 8;
- chParam.Frequency |= ( uint32_t )payload[macIndex++] << 16;
- chParam.Frequency *= 100;
- chParam.DrRange.Value = payload[macIndex++];
-
- LoRaMacState |= MAC_TX_CONFIG;
- if( chParam.Frequency == 0 )
- {
- if( channelIndex < 3 )
- {
- status &= 0xFC;
- }
- else
- {
- if( LoRaMacChannelRemove( channelIndex ) != LORAMAC_STATUS_OK )
- {
- status &= 0xFC;
- }
- }
- }
- else
- {
- switch( LoRaMacChannelAdd( channelIndex, chParam ) )
- {
- case LORAMAC_STATUS_OK:
- {
- break;
- }
- case LORAMAC_STATUS_FREQUENCY_INVALID:
- {
- status &= 0xFE;
- break;
- }
- case LORAMAC_STATUS_DATARATE_INVALID:
- {
- status &= 0xFD;
- break;
- }
- case LORAMAC_STATUS_FREQ_AND_DR_INVALID:
- {
- status &= 0xFC;
- break;
- }
- default:
- {
- status &= 0xFC;
- break;
- }
- }
- }
- LoRaMacState &= ~MAC_TX_CONFIG;
-#endif
- AddMacCommand( MOTE_MAC_NEW_CHANNEL_ANS, status, 0 );
- }
- break;
- case SRV_MAC_RX_TIMING_SETUP_REQ:
- {
- uint8_t delay = payload[macIndex++] & 0x0F;
-
- if( delay == 0 )
- {
- delay++;
- }
- ReceiveDelay1 = delay * 1e6;
- ReceiveDelay2 = ReceiveDelay1 + 1e6;
- AddMacCommand( MOTE_MAC_RX_TIMING_SETUP_ANS, 0, 0 );
- }
- break;
- default:
- // Unknown command. ABORT MAC commands processing
- return;
- }
- }
-
- // Process accumulated Link ADR channel mask changes
- if( validLinkAdrCmds > 0 )
- {
- uint8_t drOkCounter = 0;
- uint8_t status = 0x07;
-
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- for(uint8_t i=0; i< 6; i++)
- {
- for( uint8_t j = 0; j < 16; j++ )
- {
- if( ( channelsMask[i] & ( 1 << j ) ) != 0 )
- {
- if ( ( Channels[i * 16 + j].Frequency == 0 ) )
- {
- status &= 0xFE; // Channel mask KO
- break;
- }
- else if( ( datarate >= Channels[i * 16 + j].DrRange.Fields.Min ) &&
- ( datarate <= Channels[i * 16 + j].DrRange.Fields.Max ) )
- {
- drOkCounter++;
- }
- }
- }
- }
-
- if ( drOkCounter == 0 )
- {
- status &= 0xFD; // Datarate KO
- }
-
- if( ( CountNbEnabled125kHzChannels( channelsMask ) > 0 ) && ( CountNbEnabled125kHzChannels( channelsMask ) < HYBRD_CHNLS_MIN ) )
- {
- status &= 0xFE; // Channel mask KO
- }
-
-#if defined( USE_BAND_915_HYBRID )
- if( ValidateChannelMask( channelsMask ) == false )
- {
- status &= 0xFE; // Channel mask KO
- }
-#endif
-
-#endif
- if( ( status & 0x07 ) == 0x07 )
- {
- ChannelsDatarate = datarate;
- ChannelsDefaultDatarate = datarate;
- ChannelsTxPower = txPower;
-
- ChannelsMask[0] = channelsMask[0];
- ChannelsMask[1] = channelsMask[1];
- ChannelsMask[2] = channelsMask[2];
- ChannelsMask[3] = channelsMask[3];
- ChannelsMask[4] = channelsMask[4];
- ChannelsMask[5] = channelsMask[5];
-
- ChannelsNbRep = nbRep;
-
- // Clear remaining channels mask
- memcpy1( ( uint8_t* ) ChannelsMaskRemaining, ( uint8_t* ) ChannelsMask, 10 );
- }
- // Channel Mask KO
- else
- {
- // Update the last Link ADR status with channel mask KO
- if( (LinkAdrMacCmdBufferIndex+1 ) < LORA_MAC_COMMAND_MAX_LENGTH )
- MacCommandsBuffer[LinkAdrMacCmdBufferIndex+1] &= status;
- }
- }
-}
-
-LoRaMacStatus_t Send( LoRaMacHeader_t *macHdr, uint8_t fPort, void *fBuffer, uint16_t fBufferSize )
-{
- LoRaMacFrameCtrl_t fCtrl;
- LoRaMacStatus_t status = LORAMAC_STATUS_PARAMETER_INVALID;
-
- fCtrl.Value = 0;
- fCtrl.Bits.FOptsLen = 0;
- fCtrl.Bits.FPending = 0;
- fCtrl.Bits.Ack = false;
- fCtrl.Bits.AdrAckReq = false;
- fCtrl.Bits.Adr = AdrCtrlOn;
-
- // Prepare the frame
- status = PrepareFrame( macHdr, &fCtrl, fPort, fBuffer, fBufferSize );
-
- // Validate status
- if( status != LORAMAC_STATUS_OK )
- {
- return status;
- }
-
- // Reset confirm parameters
- McpsConfirm.NbRetries = 0;
- McpsConfirm.AckReceived = false;
- McpsConfirm.UpLinkCounter = UpLinkCounter;
-
- status = ScheduleTx( );
-
- return status;
-}
-
-static LoRaMacStatus_t ScheduleTx( )
-{
- TimerTime_t dutyCycleTimeOff = 0;
-
- // Check if the device is off
- if( MaxDCycle == 255 )
- {
- return LORAMAC_STATUS_DEVICE_OFF;
- }
- if( MaxDCycle == 0 )
- {
- AggregatedTimeOff = 0;
- }
-
- CalculateBackOff( LastTxChannel );
-
- // Select channel
- while( SetNextChannel( &dutyCycleTimeOff ) == false )
- {
- // Set the default datarate
- ChannelsDatarate = ChannelsDefaultDatarate;
-
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- // Re-enable default channels LC1, LC2, LC3
- ChannelsMask[0] = ChannelsMask[0] | ( LC( 1 ) + LC( 2 ) + LC( 3 ) );
-#endif
- }
-
- // Schedule transmission of frame
- if( dutyCycleTimeOff == 0 )
- {
- // Try to send now
- return SendFrameOnChannel( Channels[Channel] );
- }
- else
- {
- // Send later - prepare timer
- LoRaMacState |= MAC_TX_DELAYED;
- TimerSetValue( &TxDelayedTimer, dutyCycleTimeOff );
- TimerStart( &TxDelayedTimer );
-
- return LORAMAC_STATUS_OK;
- }
-}
-
-static void CalculateBackOff( uint8_t channel )
-{
- uint16_t dutyCycle = Bands[Channels[channel].Band].DCycle;
-
- if( IsLoRaMacNetworkJoined == false )
- {
-#if defined( USE_BAND_868 ) || defined( USE_BAND_433 ) || defined( USE_BAND_780 )
- dutyCycle = JOIN_DC;
-#endif
- }
-
- // Update Band Time OFF
- if( DutyCycleOn == true )
- {
- Bands[Channels[channel].Band].TimeOff = TxTimeOnAir * dutyCycle - TxTimeOnAir;
- }
- else
- {
- Bands[Channels[channel].Band].TimeOff = 0;
- }
- // Update Aggregated Time OFF
- AggregatedTimeOff = AggregatedTimeOff + ( TxTimeOnAir * AggregatedDCycle - TxTimeOnAir );
-}
-
-LoRaMacStatus_t PrepareFrame( LoRaMacHeader_t *macHdr, LoRaMacFrameCtrl_t *fCtrl, uint8_t fPort, void *fBuffer, uint16_t fBufferSize )
-{
- uint16_t i;
- uint8_t pktHeaderLen = 0;
- uint32_t mic = 0;
- const void* payload = fBuffer;
- uint8_t payloadSize = fBufferSize;
- uint8_t framePort = fPort;
-
- LoRaMacBufferPktLen = 0;
-
- NodeAckRequested = false;
-
- if( fBuffer == NULL )
- {
- fBufferSize = 0;
- }
-
- LoRaMacBuffer[pktHeaderLen++] = macHdr->Value;
-
- switch( macHdr->Bits.MType )
- {
- case FRAME_TYPE_JOIN_REQ:
- RxWindow1Delay = JoinAcceptDelay1 - RADIO_WAKEUP_TIME;
- RxWindow2Delay = JoinAcceptDelay2 - RADIO_WAKEUP_TIME;
-
- LoRaMacBufferPktLen = pktHeaderLen;
-
- memcpyr( LoRaMacBuffer + LoRaMacBufferPktLen, LoRaMacAppEui, 8 );
- LoRaMacBufferPktLen += 8;
- memcpyr( LoRaMacBuffer + LoRaMacBufferPktLen, LoRaMacDevEui, 8 );
- LoRaMacBufferPktLen += 8;
-
- LoRaMacDevNonce = Radio.Random( );
-
- LoRaMacBuffer[LoRaMacBufferPktLen++] = LoRaMacDevNonce & 0xFF;
- LoRaMacBuffer[LoRaMacBufferPktLen++] = ( LoRaMacDevNonce >> 8 ) & 0xFF;
-
- LoRaMacJoinComputeMic( LoRaMacBuffer, LoRaMacBufferPktLen & 0xFF, LoRaMacAppKey, &mic );
-
- LoRaMacBuffer[LoRaMacBufferPktLen++] = mic & 0xFF;
- LoRaMacBuffer[LoRaMacBufferPktLen++] = ( mic >> 8 ) & 0xFF;
- LoRaMacBuffer[LoRaMacBufferPktLen++] = ( mic >> 16 ) & 0xFF;
- LoRaMacBuffer[LoRaMacBufferPktLen++] = ( mic >> 24 ) & 0xFF;
-
- break;
- case FRAME_TYPE_DATA_CONFIRMED_UP:
- NodeAckRequested = true;
- //Intentional falltrough
- case FRAME_TYPE_DATA_UNCONFIRMED_UP:
- if( IsLoRaMacNetworkJoined == false )
- {
- return LORAMAC_STATUS_NO_NETWORK_JOINED; // No network has been joined yet
- }
-
- fCtrl->Bits.AdrAckReq = AdrNextDr( fCtrl->Bits.Adr, true, &ChannelsDatarate, &ChannelsTxPower );
-
- if( ValidatePayloadLength( fBufferSize, ChannelsDatarate, MacCommandsBufferIndex ) == false )
- {
- return LORAMAC_STATUS_LENGTH_ERROR;
- }
-
- RxWindow1Delay = ReceiveDelay1 - RADIO_WAKEUP_TIME;
- RxWindow2Delay = ReceiveDelay2 - RADIO_WAKEUP_TIME;
-
- if( SrvAckRequested == true )
- {
- SrvAckRequested = false;
- fCtrl->Bits.Ack = 1;
- }
-
- LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr ) & 0xFF;
- LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr >> 8 ) & 0xFF;
- LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr >> 16 ) & 0xFF;
- LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr >> 24 ) & 0xFF;
-
- LoRaMacBuffer[pktHeaderLen++] = fCtrl->Value;
-
- LoRaMacBuffer[pktHeaderLen++] = UpLinkCounter & 0xFF;
- LoRaMacBuffer[pktHeaderLen++] = ( UpLinkCounter >> 8 ) & 0xFF;
-
- // Copy the MAC commands which must be re-send into the MAC command buffer
- memcpy1( &MacCommandsBuffer[MacCommandsBufferIndex], MacCommandsBufferToRepeat, MacCommandsBufferToRepeatIndex );
- MacCommandsBufferIndex += MacCommandsBufferToRepeatIndex;
-
- if( ( payload != NULL ) && ( payloadSize > 0 ) )
- {
- if( ( MacCommandsBufferIndex <= LORA_MAC_COMMAND_MAX_LENGTH ) && ( MacCommandsInNextTx == true ) )
- {
- fCtrl->Bits.FOptsLen += MacCommandsBufferIndex;
-
- // Update FCtrl field with new value of OptionsLength
- LoRaMacBuffer[0x05] = fCtrl->Value;
- for( i = 0; i < MacCommandsBufferIndex; i++ )
- {
- LoRaMacBuffer[pktHeaderLen++] = MacCommandsBuffer[i];
- }
- }
- }
- else
- {
- if( ( MacCommandsBufferIndex > 0 ) && ( MacCommandsInNextTx ) )
- {
- payloadSize = MacCommandsBufferIndex;
- payload = MacCommandsBuffer;
- framePort = 0;
- }
- }
- MacCommandsInNextTx = false;
- // Store MAC commands which must be re-send in case the device does not receive a downlink anymore
- MacCommandsBufferToRepeatIndex = ParseMacCommandsToRepeat( MacCommandsBuffer, MacCommandsBufferIndex, MacCommandsBufferToRepeat );
- if( MacCommandsBufferToRepeatIndex > 0 )
- {
- MacCommandsInNextTx = true;
- }
- MacCommandsBufferIndex = 0;
-
- if( ( payload != NULL ) && ( payloadSize > 0 ) )
- {
- LoRaMacBuffer[pktHeaderLen++] = framePort;
-
- if( framePort == 0 )
- {
- LoRaMacPayloadEncrypt( (uint8_t* ) payload, payloadSize, LoRaMacNwkSKey, LoRaMacDevAddr, UP_LINK, UpLinkCounter, LoRaMacPayload );
- }
- else
- {
- LoRaMacPayloadEncrypt( (uint8_t* ) payload, payloadSize, LoRaMacAppSKey, LoRaMacDevAddr, UP_LINK, UpLinkCounter, LoRaMacPayload );
- }
- memcpy1( LoRaMacBuffer + pktHeaderLen, LoRaMacPayload, payloadSize );
- }
- LoRaMacBufferPktLen = pktHeaderLen + payloadSize;
-
- LoRaMacComputeMic( LoRaMacBuffer, LoRaMacBufferPktLen, LoRaMacNwkSKey, LoRaMacDevAddr, UP_LINK, UpLinkCounter, &mic );
-
- LoRaMacBuffer[LoRaMacBufferPktLen + 0] = mic & 0xFF;
- LoRaMacBuffer[LoRaMacBufferPktLen + 1] = ( mic >> 8 ) & 0xFF;
- LoRaMacBuffer[LoRaMacBufferPktLen + 2] = ( mic >> 16 ) & 0xFF;
- LoRaMacBuffer[LoRaMacBufferPktLen + 3] = ( mic >> 24 ) & 0xFF;
-
- LoRaMacBufferPktLen += LORAMAC_MFR_LEN;
-
- break;
- case FRAME_TYPE_PROPRIETARY:
- if( ( fBuffer != NULL ) && ( fBufferSize > 0 ) )
- {
- memcpy1( LoRaMacBuffer + pktHeaderLen, ( uint8_t* ) fBuffer, fBufferSize );
- LoRaMacBufferPktLen = pktHeaderLen + fBufferSize;
- }
- break;
- default:
- return LORAMAC_STATUS_SERVICE_UNKNOWN;
- }
-
- return LORAMAC_STATUS_OK;
-}
-
-LoRaMacStatus_t SendFrameOnChannel( ChannelParams_t channel )
-{
- int8_t datarate = Datarates[ChannelsDatarate];
- int8_t txPowerIndex = 0;
- int8_t txPower = 0;
-
- txPowerIndex = LimitTxPower( ChannelsTxPower );
- txPower = TxPowers[txPowerIndex];
-
- MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR;
- McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR;
- McpsConfirm.Datarate = ChannelsDatarate;
- McpsConfirm.TxPower = txPowerIndex;
-
- Radio.SetChannel( channel.Frequency );
-
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- if( ChannelsDatarate == DR_7 )
- { // High Speed FSK channel
- Radio.SetMaxPayloadLength( MODEM_FSK, LoRaMacBufferPktLen );
- Radio.SetTxConfig( MODEM_FSK, txPower, 25e3, 0, datarate * 1e3, 0, 5, false, true, 0, 0, false, 3e6 );
- TxTimeOnAir = Radio.TimeOnAir( MODEM_FSK, LoRaMacBufferPktLen );
-
- }
- else if( ChannelsDatarate == DR_6 )
- { // High speed LoRa channel
- Radio.SetMaxPayloadLength( MODEM_LORA, LoRaMacBufferPktLen );
- Radio.SetTxConfig( MODEM_LORA, txPower, 0, 1, datarate, 1, 8, false, true, 0, 0, false, 3e6 );
- TxTimeOnAir = Radio.TimeOnAir( MODEM_LORA, LoRaMacBufferPktLen );
- }
- else
- { // Normal LoRa channel
- Radio.SetMaxPayloadLength( MODEM_LORA, LoRaMacBufferPktLen );
- Radio.SetTxConfig( MODEM_LORA, txPower, 0, 0, datarate, 1, 8, false, true, 0, 0, false, 3e6 );
- TxTimeOnAir = Radio.TimeOnAir( MODEM_LORA, LoRaMacBufferPktLen );
- }
-#elif defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- Radio.SetMaxPayloadLength( MODEM_LORA, LoRaMacBufferPktLen );
- if( ChannelsDatarate >= DR_4 )
- { // High speed LoRa channel BW500 kHz
- Radio.SetTxConfig( MODEM_LORA, txPower, 0, 2, datarate, 1, 8, false, true, 0, 0, false, 3e6 );
- TxTimeOnAir = Radio.TimeOnAir( MODEM_LORA, LoRaMacBufferPktLen );
- }
- else
- { // Normal LoRa channel
- Radio.SetTxConfig( MODEM_LORA, txPower, 0, 0, datarate, 1, 8, false, true, 0, 0, false, 3e6 );
- TxTimeOnAir = Radio.TimeOnAir( MODEM_LORA, LoRaMacBufferPktLen );
- }
-#else
- #error "Please define a frequency band in the compiler options."
-#endif
-
- // Store the time on air
- McpsConfirm.TxTimeOnAir = TxTimeOnAir;
- MlmeConfirm.TxTimeOnAir = TxTimeOnAir;
-
- // Starts the MAC layer status check timer
- TimerSetValue( &MacStateCheckTimer, MAC_STATE_CHECK_TIMEOUT );
- TimerStart( &MacStateCheckTimer );
-
- // Send now
- Radio.Send( LoRaMacBuffer, LoRaMacBufferPktLen );
-
- LoRaMacState |= MAC_TX_RUNNING;
-
- return LORAMAC_STATUS_OK;
-}
-
-
-LoRaMacStatus_t LoRaMacInitialization( LoRaMacPrimitives_t *primitives, LoRaMacCallback_t *callbacks )
-{
- if( primitives == NULL )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
-
- if( ( primitives->MacMcpsConfirm == NULL ) ||
- ( primitives->MacMcpsIndication == NULL ) ||
- ( primitives->MacMlmeConfirm == NULL ))
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
-
- LoRaMacPrimitives = primitives;
- LoRaMacCallbacks = callbacks;
-
- LoRaMacFlags.Value = 0;
-
- LoRaMacDeviceClass = CLASS_A;
-
- UpLinkCounter = 1;
- DownLinkCounter = 0;
- AdrAckCounter = 0;
-
- ChannelsNbRepCounter = 0;
-
- AckTimeoutRetries = 1;
- AckTimeoutRetriesCounter = 1;
- AckTimeoutRetry = false;
-
- MaxDCycle = 0;
- AggregatedDCycle = 1;
-
- MacCommandsBufferIndex = 0;
- MacCommandsBufferToRepeatIndex = 0;
-
- IsRxWindowsEnabled = true;
-
- RepeaterSupport = false;
- IsRxWindowsEnabled = true;
- IsLoRaMacNetworkJoined = false;
- LoRaMacState = MAC_IDLE;
-
- NodeAckRequested = false;
- SrvAckRequested = false;
- MacCommandsInNextTx = false;
-
-#if defined( USE_BAND_433 )
- ChannelsMask[0] = LC( 1 ) + LC( 2 ) + LC( 3 );
-#elif defined( USE_BAND_780 )
- ChannelsMask[0] = LC( 1 ) + LC( 2 ) + LC( 3 );
-#elif defined( USE_BAND_868 )
- ChannelsMask[0] = LC( 1 ) + LC( 2 ) + LC( 3 );
-#elif defined( USE_BAND_915 )
- ChannelsMask[0] = 0xFFFF;
- ChannelsMask[1] = 0xFFFF;
- ChannelsMask[2] = 0xFFFF;
- ChannelsMask[3] = 0xFFFF;
- ChannelsMask[4] = 0x00FF;
- ChannelsMask[5] = 0x0000;
-
- memcpy1( ( uint8_t* ) ChannelsMaskRemaining, ( uint8_t* ) ChannelsMask, sizeof( ChannelsMask ) );
-#elif defined( USE_BAND_915_HYBRID )
- ChannelsMask[0] = 0x00FF;
- ChannelsMask[1] = 0x0000;
- ChannelsMask[2] = 0x0000;
- ChannelsMask[3] = 0x0000;
- ChannelsMask[4] = 0x0001;
- ChannelsMask[5] = 0x0000;
-
- memcpy1( ( uint8_t* ) ChannelsMaskRemaining, ( uint8_t* ) ChannelsMask, sizeof( ChannelsMask ) );
-#else
- #error "Please define a frequency band in the compiler options."
-#endif
-
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- // 125 kHz channels
- for( uint8_t i = 0; i < LORA_MAX_NB_CHANNELS - 8; i++ )
- {
- Channels[i].Frequency = 902.3e6 + i * 200e3;
- Channels[i].DrRange.Value = ( DR_3 << 4 ) | DR_0;
- Channels[i].Band = 0;
- }
- // 500 kHz channels
- for( uint8_t i = LORA_MAX_NB_CHANNELS - 8; i < LORA_MAX_NB_CHANNELS; i++ )
- {
- Channels[i].Frequency = 903.0e6 + ( i - ( LORA_MAX_NB_CHANNELS - 8 ) ) * 1.6e6;
- Channels[i].DrRange.Value = ( DR_4 << 4 ) | DR_4;
- Channels[i].Band = 0;
- }
-#endif
-
- ChannelsTxPower = LORAMAC_DEFAULT_TX_POWER;
- ChannelsDefaultDatarate = ChannelsDatarate = LORAMAC_DEFAULT_DATARATE;
- ChannelsNbRep = 1;
- ChannelsNbRepCounter = 0;
-
- Rx2Channel.Frequency = 923300000;
- Rx2Channel.Datarate = DR_8;
- Rx1DrOffset = 0;
-
-
- MaxDCycle = 0;
- AggregatedDCycle = 1;
- AggregatedLastTxDoneTime = 0;
- AggregatedTimeOff = 0;
-
-#if defined( USE_BAND_433 )
- DutyCycleOn = false;
-#elif defined( USE_BAND_780 )
- DutyCycleOn = false;
-#elif defined( USE_BAND_868 )
- DutyCycleOn = true;
-#elif defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- DutyCycleOn = false;
-#else
- #error "Please define a frequency band in the compiler options."
-#endif
-
- MaxRxWindow = MAX_RX_WINDOW;
- ReceiveDelay1 = RECEIVE_DELAY1;
- ReceiveDelay2 = RECEIVE_DELAY2;
- JoinAcceptDelay1 = JOIN_ACCEPT_DELAY1;
- JoinAcceptDelay2 = JOIN_ACCEPT_DELAY2;
-
-#if defined( USE_BAND_915 )
- NextJoinBlock = 0;
- LastJoinBlock = -1;
- JoinBlocksRemaining = 0xff;
- Join500KHzRemaining = 0xff;
-#endif
-
- LastJoinTxTime = 0;
- JoinAggTimeOnAir = 0;
-
- TimerInit( &MacStateCheckTimer, OnMacStateCheckTimerEvent );
- TimerSetValue( &MacStateCheckTimer, MAC_STATE_CHECK_TIMEOUT );
-
- TimerInit( &TxDelayedTimer, OnTxDelayedTimerEvent );
- TimerInit( &RxWindowTimer1, OnRxWindow1TimerEvent );
- TimerInit( &RxWindowTimer2, OnRxWindow2TimerEvent );
- TimerInit( &AckTimeoutTimer, OnAckTimeoutTimerEvent );
-
- // Initialize Radio driver
- RadioEvents.TxDone = OnRadioTxDone;
- RadioEvents.RxDone = OnRadioRxDone;
- RadioEvents.RxError = OnRadioRxError;
- RadioEvents.TxTimeout = OnRadioTxTimeout;
- RadioEvents.RxTimeout = OnRadioRxTimeout;
- Radio.Init( &RadioEvents );
-
- // Random seed initialization
- srand1( Radio.Random( ) );
-
- // Initialize channel index.
- Channel = LORA_MAX_NB_CHANNELS;
-
- PublicNetwork = true;
- SetPublicNetwork( PublicNetwork );
- Radio.Sleep( );
-
- return LORAMAC_STATUS_OK;
-}
-
-LoRaMacStatus_t LoRaMacQueryTxPossible( uint8_t size, LoRaMacTxInfo_t* txInfo )
-{
- int8_t datarate = ChannelsDefaultDatarate;
- uint8_t fOptLen = MacCommandsBufferIndex + MacCommandsBufferToRepeatIndex;
-
- if( txInfo == NULL )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
-
- AdrNextDr( AdrCtrlOn, false, &datarate, NULL );
-
- if( RepeaterSupport == true )
- {
- txInfo->CurrentPayloadSize = MaxPayloadOfDatarateRepeater[datarate];
- }
- else
- {
- txInfo->CurrentPayloadSize = MaxPayloadOfDatarate[datarate];
- }
-
- if( txInfo->CurrentPayloadSize >= fOptLen )
- {
- txInfo->MaxPossiblePayload = txInfo->CurrentPayloadSize - fOptLen;
- }
- else
- {
- return LORAMAC_STATUS_MAC_CMD_LENGTH_ERROR;
- }
-
- if( ValidatePayloadLength( size, datarate, 0 ) == false )
- {
- return LORAMAC_STATUS_LENGTH_ERROR;
- }
-
- if( ValidatePayloadLength( size, datarate, fOptLen ) == false )
- {
- return LORAMAC_STATUS_MAC_CMD_LENGTH_ERROR;
- }
-
- return LORAMAC_STATUS_OK;
-}
-
-LoRaMacStatus_t LoRaMacMibGetRequestConfirm( MibRequestConfirm_t *mibGet )
-{
- LoRaMacStatus_t status = LORAMAC_STATUS_OK;
-
- if( mibGet == NULL )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
-
- switch( mibGet->Type )
- {
- case MIB_DEVICE_CLASS:
- {
- mibGet->Param.Class = LoRaMacDeviceClass;
- break;
- }
- case MIB_NETWORK_JOINED:
- {
- mibGet->Param.IsNetworkJoined = IsLoRaMacNetworkJoined;
- break;
- }
- case MIB_ADR:
- {
- mibGet->Param.AdrEnable = AdrCtrlOn;
- break;
- }
- case MIB_NET_ID:
- {
- mibGet->Param.NetID = LoRaMacNetID;
- break;
- }
- case MIB_DEV_ADDR:
- {
- mibGet->Param.DevAddr = LoRaMacDevAddr;
- break;
- }
- case MIB_NWK_SKEY:
- {
- mibGet->Param.NwkSKey = LoRaMacNwkSKey;
- break;
- }
- case MIB_APP_SKEY:
- {
- mibGet->Param.AppSKey = LoRaMacAppSKey;
- break;
- }
- case MIB_PUBLIC_NETWORK:
- {
- mibGet->Param.EnablePublicNetwork = PublicNetwork;
- break;
- }
- case MIB_REPEATER_SUPPORT:
- {
- mibGet->Param.EnableRepeaterSupport = RepeaterSupport;
- break;
- }
- case MIB_CHANNELS:
- {
- mibGet->Param.ChannelList = Channels;
- break;
- }
- case MIB_RX2_CHANNEL:
- {
- mibGet->Param.Rx2Channel = Rx2Channel;
- break;
- }
- case MIB_CHANNELS_MASK:
- {
- mibGet->Param.ChannelsMask = ChannelsMask;
- break;
- }
- case MIB_CHANNELS_NB_REP:
- {
- mibGet->Param.ChannelNbRep = ChannelsNbRep;
- break;
- }
- case MIB_MAX_RX_WINDOW_DURATION:
- {
- mibGet->Param.MaxRxWindow = MaxRxWindow;
- break;
- }
- case MIB_RECEIVE_DELAY_1:
- {
- mibGet->Param.ReceiveDelay1 = ReceiveDelay1;
- break;
- }
- case MIB_RECEIVE_DELAY_2:
- {
- mibGet->Param.ReceiveDelay2 = ReceiveDelay2;
- break;
- }
- case MIB_JOIN_ACCEPT_DELAY_1:
- {
- mibGet->Param.JoinAcceptDelay1 = JoinAcceptDelay1;
- break;
- }
- case MIB_JOIN_ACCEPT_DELAY_2:
- {
- mibGet->Param.JoinAcceptDelay2 = JoinAcceptDelay2;
- break;
- }
- case MIB_CHANNELS_DEFAULT_DATARATE:
- {
- mibGet->Param.ChannelsDefaultDatarate = ChannelsDefaultDatarate;
- break;
- }
- case MIB_CHANNELS_DATARATE:
- {
- mibGet->Param.ChannelsDatarate = ChannelsDatarate;
- break;
- }
- case MIB_CHANNELS_TX_POWER:
- {
- mibGet->Param.ChannelsTxPower = ChannelsTxPower;
- break;
- }
- case MIB_UPLINK_COUNTER:
- {
- mibGet->Param.UpLinkCounter = UpLinkCounter;
- break;
- }
- case MIB_DOWNLINK_COUNTER:
- {
- mibGet->Param.DownLinkCounter = DownLinkCounter;
- break;
- }
- case MIB_MULTICAST_CHANNEL:
- {
- mibGet->Param.MulticastList = MulticastChannels;
- break;
- }
- default:
- status = LORAMAC_STATUS_SERVICE_UNKNOWN;
- break;
- }
-
- return status;
-}
-
-LoRaMacStatus_t LoRaMacMibSetRequestConfirm( MibRequestConfirm_t *mibSet )
-{
- LoRaMacStatus_t status = LORAMAC_STATUS_OK;
-
- if( mibSet == NULL )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
- if( ( LoRaMacState & MAC_TX_RUNNING ) == MAC_TX_RUNNING )
- {
- return LORAMAC_STATUS_BUSY;
- }
-
- switch( mibSet->Type )
- {
- case MIB_DEVICE_CLASS:
- {
- LoRaMacDeviceClass = mibSet->Param.Class;
- switch( LoRaMacDeviceClass )
- {
- case CLASS_A:
- {
- // Set the radio into sleep to setup a defined state
- Radio.Sleep( );
- break;
- }
- case CLASS_B:
- {
- break;
- }
- case CLASS_C:
- {
- // Set the NodeAckRequested indicator to default
- NodeAckRequested = false;
- OnRxWindow2TimerEvent( );
- break;
- }
- }
- break;
- }
- case MIB_NETWORK_JOINED:
- {
- IsLoRaMacNetworkJoined = mibSet->Param.IsNetworkJoined;
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- if( IsLoRaMacNetworkJoined == false )
- {
- NextJoinBlock = 0;
- JoinBlocksRemaining = 0xff;
- Join500KHzRemaining = 0xff;
- }
-#endif
- break;
- }
- case MIB_ADR:
- {
- AdrCtrlOn = mibSet->Param.AdrEnable;
- break;
- }
- case MIB_NET_ID:
- {
- LoRaMacNetID = mibSet->Param.NetID;
- break;
- }
- case MIB_DEV_ADDR:
- {
- LoRaMacDevAddr = mibSet->Param.DevAddr;
- break;
- }
- case MIB_NWK_SKEY:
- {
- if( mibSet->Param.NwkSKey != NULL )
- {
- memcpy1( LoRaMacNwkSKey, mibSet->Param.NwkSKey,
- sizeof( LoRaMacNwkSKey ) );
- }
- else
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
- break;
- }
- case MIB_APP_SKEY:
- {
- if( mibSet->Param.AppSKey != NULL )
- {
- memcpy1( LoRaMacAppSKey, mibSet->Param.AppSKey,
- sizeof( LoRaMacAppSKey ) );
- }
- else
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
- break;
- }
- case MIB_PUBLIC_NETWORK:
- {
- SetPublicNetwork( mibSet->Param.EnablePublicNetwork );
- break;
- }
- case MIB_REPEATER_SUPPORT:
- {
- RepeaterSupport = mibSet->Param.EnableRepeaterSupport;
- break;
- }
- case MIB_RX2_CHANNEL:
- {
- Rx2Channel = mibSet->Param.Rx2Channel;
- break;
- }
- case MIB_CHANNELS_MASK:
- {
- if( mibSet->Param.ChannelsMask )
- {
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- bool chanMaskState = true;
-
-#if defined( USE_BAND_915_HYBRID )
- chanMaskState = ValidateChannelMask( mibSet->Param.ChannelsMask );
-#endif
- if( chanMaskState == true )
- {
- if( ( CountNbEnabled125kHzChannels( mibSet->Param.ChannelsMask ) < HYBRD_CHNLS_MIN ) &&
- ( CountNbEnabled125kHzChannels( mibSet->Param.ChannelsMask ) > 0 ) )
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
- else
- {
- memcpy1( ( uint8_t* ) ChannelsMask,
- ( uint8_t* ) mibSet->Param.ChannelsMask, sizeof( ChannelsMask ) );
- for ( uint8_t i = 0; i < sizeof( ChannelsMask ) / 2; i++ )
- {
- // Disable channels which are no longer available
- ChannelsMaskRemaining[i] &= ChannelsMask[i];
- }
- }
- }
- else
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
-#else
- memcpy1( ( uint8_t* ) ChannelsMask,
- ( uint8_t* ) mibSet->Param.ChannelsMask, 2 );
-#endif
- }
- else
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
- break;
- }
- case MIB_CHANNELS_NB_REP:
- {
- if( ( mibSet->Param.ChannelNbRep >= 1 ) &&
- ( mibSet->Param.ChannelNbRep <= 15 ) )
- {
- ChannelsNbRep = mibSet->Param.ChannelNbRep;
- }
- else
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
- break;
- }
- case MIB_MAX_RX_WINDOW_DURATION:
- {
- MaxRxWindow = mibSet->Param.MaxRxWindow;
- break;
- }
- case MIB_RECEIVE_DELAY_1:
- {
- ReceiveDelay1 = mibSet->Param.ReceiveDelay1;
- break;
- }
- case MIB_RECEIVE_DELAY_2:
- {
- ReceiveDelay2 = mibSet->Param.ReceiveDelay2;
- break;
- }
- case MIB_JOIN_ACCEPT_DELAY_1:
- {
- JoinAcceptDelay1 = mibSet->Param.JoinAcceptDelay1;
- break;
- }
- case MIB_JOIN_ACCEPT_DELAY_2:
- {
- JoinAcceptDelay2 = mibSet->Param.JoinAcceptDelay2;
- break;
- }
- case MIB_CHANNELS_DEFAULT_DATARATE:
- {
- if( ValueInRange( mibSet->Param.ChannelsDefaultDatarate,
- LORAMAC_TX_MIN_DATARATE, LORAMAC_TX_MAX_DATARATE ) )
- {
- ChannelsDefaultDatarate = mibSet->Param.ChannelsDefaultDatarate;
- }
- else
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
- break;
- }
- case MIB_CHANNELS_DATARATE:
- {
- if( ValueInRange( mibSet->Param.ChannelsDatarate,
- LORAMAC_TX_MIN_DATARATE, LORAMAC_TX_MAX_DATARATE ) )
- {
- ChannelsDatarate = mibSet->Param.ChannelsDatarate;
- }
- else
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
- break;
- }
- case MIB_CHANNELS_TX_POWER:
- {
- if( ValueInRange( mibSet->Param.ChannelsTxPower,
- LORAMAC_MAX_TX_POWER, LORAMAC_MIN_TX_POWER ) )
- {
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- int8_t txPower = LimitTxPower( mibSet->Param.ChannelsTxPower );
- if( txPower == mibSet->Param.ChannelsTxPower )
- {
- ChannelsTxPower = mibSet->Param.ChannelsTxPower;
- }
- else
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
-#else
- ChannelsTxPower = mibSet->Param.ChannelsTxPower;
-#endif
- }
- else
- {
- status = LORAMAC_STATUS_PARAMETER_INVALID;
- }
- break;
- }
- case MIB_UPLINK_COUNTER:
- {
- UpLinkCounter = mibSet->Param.UpLinkCounter;
- break;
- }
- case MIB_DOWNLINK_COUNTER:
- {
- DownLinkCounter = mibSet->Param.DownLinkCounter;
- break;
- }
- default:
- status = LORAMAC_STATUS_SERVICE_UNKNOWN;
- break;
- }
-
- return status;
-}
-
-LoRaMacStatus_t LoRaMacChannelAdd( uint8_t id, ChannelParams_t params )
-{
-#if ( defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID ) )
- return LORAMAC_STATUS_PARAMETER_INVALID;
-#else
- bool datarateInvalid = false;
- bool frequencyInvalid = false;
- uint8_t band = 0;
-
- // The id must not exceed LORA_MAX_NB_CHANNELS
- if( id >= LORA_MAX_NB_CHANNELS )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
- // Validate if the MAC is in a correct state
- if( ( LoRaMacState & MAC_TX_RUNNING ) == MAC_TX_RUNNING )
- {
- if( ( LoRaMacState & MAC_TX_CONFIG ) != MAC_TX_CONFIG )
- {
- return LORAMAC_STATUS_BUSY;
- }
- }
- // Validate the datarate
- if( ( params.DrRange.Fields.Min > params.DrRange.Fields.Max ) ||
- ( ValueInRange( params.DrRange.Fields.Min, LORAMAC_TX_MIN_DATARATE,
- LORAMAC_TX_MAX_DATARATE ) == false ) ||
- ( ValueInRange( params.DrRange.Fields.Max, LORAMAC_TX_MIN_DATARATE,
- LORAMAC_TX_MAX_DATARATE ) == false ) )
- {
- datarateInvalid = true;
- }
-
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- if( id < 3 )
- {
- if( params.Frequency != Channels[id].Frequency )
- {
- frequencyInvalid = true;
- }
-
- if( params.DrRange.Fields.Min > ChannelsDefaultDatarate )
- {
- datarateInvalid = true;
- }
- if( ValueInRange( params.DrRange.Fields.Max, DR_5, LORAMAC_TX_MAX_DATARATE ) == false )
- {
- datarateInvalid = true;
- }
- }
-#endif
-
- // Validate the frequency
- if( ( Radio.CheckRfFrequency( params.Frequency ) == true ) && ( params.Frequency > 0 ) && ( frequencyInvalid == false ) )
- {
-#if defined( USE_BAND_868 )
- if( ( params.Frequency >= 865000000 ) && ( params.Frequency <= 868000000 ) )
- {
- band = BAND_G1_0;
- }
- else if( ( params.Frequency > 868000000 ) && ( params.Frequency <= 868600000 ) )
- {
- band = BAND_G1_1;
- }
- else if( ( params.Frequency >= 868700000 ) && ( params.Frequency <= 869200000 ) )
- {
- band = BAND_G1_2;
- }
- else if( ( params.Frequency >= 869400000 ) && ( params.Frequency <= 869650000 ) )
- {
- band = BAND_G1_3;
- }
- else if( ( params.Frequency >= 869700000 ) && ( params.Frequency <= 870000000 ) )
- {
- band = BAND_G1_4;
- }
- else
- {
- frequencyInvalid = true;
- }
-#endif
- }
- else
- {
- frequencyInvalid = true;
- }
-
- if( ( datarateInvalid == true ) && ( frequencyInvalid == true ) )
- {
- return LORAMAC_STATUS_FREQ_AND_DR_INVALID;
- }
- if( datarateInvalid == true )
- {
- return LORAMAC_STATUS_DATARATE_INVALID;
- }
- if( frequencyInvalid == true )
- {
- return LORAMAC_STATUS_FREQUENCY_INVALID;
- }
-
- // Every parameter is valid, activate the channel
- Channels[id] = params;
- Channels[id].Band = band;
- ChannelsMask[0] |= ( 1 << id );
-
- return LORAMAC_STATUS_OK;
-#endif
-}
-
-LoRaMacStatus_t LoRaMacChannelRemove( uint8_t id )
-{
-#if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
- if( ( LoRaMacState & MAC_TX_RUNNING ) == MAC_TX_RUNNING )
- {
- if( ( LoRaMacState & MAC_TX_CONFIG ) != MAC_TX_CONFIG )
- {
- return LORAMAC_STATUS_BUSY;
- }
- }
-
- if( ( id < 3 ) || ( id >= LORA_MAX_NB_CHANNELS ) )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
- else
- {
- // Remove the channel from the list of channels
- Channels[id] = ( ChannelParams_t ){ 0, { 0 }, 0 };
-
- // Disable the channel as it doesn't exist anymore
- if( DisableChannelInMask( id, ChannelsMask ) == false )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
- }
- return LORAMAC_STATUS_OK;
-#elif ( defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID ) )
- return LORAMAC_STATUS_PARAMETER_INVALID;
-#endif
-}
-
-LoRaMacStatus_t LoRaMacMulticastChannelLink( MulticastParams_t *channelParam )
-{
- if( channelParam == NULL )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
- if( ( LoRaMacState & MAC_TX_RUNNING ) == MAC_TX_RUNNING )
- {
- return LORAMAC_STATUS_BUSY;
- }
-
- // Reset downlink counter
- channelParam->DownLinkCounter = 0;
-
- if( MulticastChannels == NULL )
- {
- // New node is the fist element
- MulticastChannels = channelParam;
- }
- else
- {
- MulticastParams_t *cur = MulticastChannels;
-
- // Search the last node in the list
- while( cur->Next != NULL )
- {
- cur = cur->Next;
- }
- // This function always finds the last node
- cur->Next = channelParam;
- }
-
- return LORAMAC_STATUS_OK;
-}
-
-LoRaMacStatus_t LoRaMacMulticastChannelUnlink( MulticastParams_t *channelParam )
-{
- if( channelParam == NULL )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
- if( ( LoRaMacState & MAC_TX_RUNNING ) == MAC_TX_RUNNING )
- {
- return LORAMAC_STATUS_BUSY;
- }
-
- if( MulticastChannels != NULL )
- {
- if( MulticastChannels == channelParam )
- {
- // First element
- MulticastChannels = channelParam->Next;
- }
- else
- {
- MulticastParams_t *cur = MulticastChannels;
-
- // Search the node in the list
- while( cur->Next && cur->Next != channelParam )
- {
- cur = cur->Next;
- }
- // If we found the node, remove it
- if( cur->Next )
- {
- cur->Next = channelParam->Next;
- }
- }
- channelParam->Next = NULL;
- }
-
- return LORAMAC_STATUS_OK;
-}
-
-LoRaMacStatus_t LoRaMacMlmeRequest( MlmeReq_t *mlmeRequest )
-{
- LoRaMacStatus_t status = LORAMAC_STATUS_SERVICE_UNKNOWN;
- LoRaMacHeader_t macHdr;
-
- if( mlmeRequest == NULL )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
- if( ( LoRaMacState & MAC_TX_RUNNING ) == MAC_TX_RUNNING )
- {
- return LORAMAC_STATUS_BUSY;
- }
-
- memset1( ( uint8_t* ) &MlmeConfirm, 0, sizeof( MlmeConfirm ) );
-
- MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR;
-
- switch( mlmeRequest->Type )
- {
- case MLME_JOIN:
- {
- if( ( LoRaMacState & MAC_TX_DELAYED ) == MAC_TX_DELAYED )
- {
- return LORAMAC_STATUS_BUSY;
- }
-
- MlmeConfirm.MlmeRequest = mlmeRequest->Type;
-
- if( ( mlmeRequest->Req.Join.DevEui == NULL ) ||
- ( mlmeRequest->Req.Join.AppEui == NULL ) ||
- ( mlmeRequest->Req.Join.AppKey == NULL ) )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
-
- LoRaMacFlags.Bits.MlmeReq = 1;
-
- LoRaMacDevEui = mlmeRequest->Req.Join.DevEui;
- LoRaMacAppEui = mlmeRequest->Req.Join.AppEui;
- LoRaMacAppKey = mlmeRequest->Req.Join.AppKey;
-
-// Disable join retransmission dutycycle as it does not currently
-// handle device reset
-#if 0
- if( LoRaMacCalcJoinBackOff( ) != 0 )
- {
- return LORAMAC_STATUS_TX_DCYCLE_EXCEEDED;
- }
-#endif
-
- macHdr.Value = 0;
- macHdr.Bits.MType = FRAME_TYPE_JOIN_REQ;
-
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
- if ( IsLoRaMacNetworkJoined == true )
- {
- NextJoinBlock = 0;
- JoinBlocksRemaining = 0xff;
- Join500KHzRemaining = 0xff;
- IsLoRaMacNetworkJoined = false;
- }
-#endif
-
-#if defined( USE_BAND_915 ) || defined( USE_BAND_915_HYBRID )
-#if defined( USE_BAND_915 )
- // Re-enable 500 kHz default channels
- ChannelsMask[4] = 0x00FF;
-#else // defined( USE_BAND_915_HYBRID )
- // Re-enable 500 kHz default channels
- ChannelsMask[4] = 0x0001;
-#endif
-
- static uint8_t drSwitch = 0;
-
- if( ( ++drSwitch & 0x01 ) == 0x01 )
- {
- ChannelsDatarate = DR_0;
- }
- else
- {
- ChannelsDatarate = DR_4;
- }
-#endif
-
- status = Send( &macHdr, 0, NULL, 0 );
- break;
- }
- case MLME_LINK_CHECK:
- {
- LoRaMacFlags.Bits.MlmeReq = 1;
- // LoRaMac will send this command piggy-pack
- MlmeConfirm.MlmeRequest = mlmeRequest->Type;
-
- status = AddMacCommand( MOTE_MAC_LINK_CHECK_REQ, 0, 0 );
- break;
- }
- default:
- break;
- }
-
- if( status != LORAMAC_STATUS_OK )
- {
- NodeAckRequested = false;
- LoRaMacFlags.Bits.MlmeReq = 0;
- }
-
- return status;
-}
-
-LoRaMacStatus_t LoRaMacMcpsRequest( McpsReq_t *mcpsRequest )
-{
- LoRaMacStatus_t status = LORAMAC_STATUS_SERVICE_UNKNOWN;
- LoRaMacHeader_t macHdr;
- uint8_t fPort = 0;
- void *fBuffer;
- uint16_t fBufferSize;
- int8_t datarate;
- bool readyToSend = false;
-
- if( mcpsRequest == NULL )
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
- if( ( ( LoRaMacState & MAC_TX_RUNNING ) == MAC_TX_RUNNING ) ||
- ( ( LoRaMacState & MAC_TX_DELAYED ) == MAC_TX_DELAYED ) )
- {
- return LORAMAC_STATUS_BUSY;
- }
-
- macHdr.Value = 0;
- memset1 ( ( uint8_t* ) &McpsConfirm, 0, sizeof( McpsConfirm ) );
- McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR;
-
- switch( mcpsRequest->Type )
- {
- case MCPS_UNCONFIRMED:
- {
- readyToSend = true;
- AckTimeoutRetries = 1;
-
- macHdr.Bits.MType = FRAME_TYPE_DATA_UNCONFIRMED_UP;
- fPort = mcpsRequest->Req.Unconfirmed.fPort;
- fBuffer = mcpsRequest->Req.Unconfirmed.fBuffer;
- fBufferSize = mcpsRequest->Req.Unconfirmed.fBufferSize;
- datarate = mcpsRequest->Req.Unconfirmed.Datarate;
- break;
- }
- case MCPS_CONFIRMED:
- {
- readyToSend = true;
- AckTimeoutRetriesCounter = 1;
- AckTimeoutRetries = mcpsRequest->Req.Confirmed.NbTrials;
-
- macHdr.Bits.MType = FRAME_TYPE_DATA_CONFIRMED_UP;
- fPort = mcpsRequest->Req.Confirmed.fPort;
- fBuffer = mcpsRequest->Req.Confirmed.fBuffer;
- fBufferSize = mcpsRequest->Req.Confirmed.fBufferSize;
- datarate = mcpsRequest->Req.Confirmed.Datarate;
- break;
- }
- case MCPS_PROPRIETARY:
- {
- readyToSend = true;
- AckTimeoutRetries = 1;
-
- macHdr.Bits.MType = FRAME_TYPE_PROPRIETARY;
- fBuffer = mcpsRequest->Req.Proprietary.fBuffer;
- fBufferSize = mcpsRequest->Req.Proprietary.fBufferSize;
- datarate = mcpsRequest->Req.Proprietary.Datarate;
- break;
- }
- default:
- break;
- }
-
- if( readyToSend == true )
- {
- if( AdrCtrlOn == false )
- {
- if( ValueInRange( datarate, LORAMAC_TX_MIN_DATARATE, LORAMAC_TX_MAX_DATARATE ) == true )
- {
- ChannelsDatarate = datarate;
- }
- else
- {
- return LORAMAC_STATUS_PARAMETER_INVALID;
- }
- }
-
- status = Send( &macHdr, fPort, fBuffer, fBufferSize );
- if( status == LORAMAC_STATUS_OK )
- {
- McpsConfirm.McpsRequest = mcpsRequest->Type;
- LoRaMacFlags.Bits.McpsReq = 1;
- }
- else
- {
- NodeAckRequested = false;
- }
- }
-
- return status;
-}
-
-TimerTime_t LoRaMacCalcJoinBackOff( )
-{
- TimerTime_t timeOff = 0;
- TimerTime_t uptime;
- TimerTime_t currDCycleEndTime;
- TimerTime_t prevDCycleEndTime;
- TimerTime_t period;
- TimerTime_t onAirTimeMax;
- TimerTime_t lastJoinTime;
- TimerTime_t elapsedTime;
- uint8_t dcyclePeriod;
-
- // Check retransmit duty-cycle is enabled
- if ( JOIN_NB_RETRANSMISSION_DCYCLES == 0 )
- return 0;
-
- // Normalize system time values to seconds
- uptime = TimerGetCurrentTime( ) / 1e6;
- lastJoinTime = LastJoinTxTime / 1e6;
-
- // Get dutycycle for current time
- prevDCycleEndTime = 0;
- currDCycleEndTime = 0;
- for(dcyclePeriod = 0; dcyclePeriod < JOIN_NB_RETRANSMISSION_DCYCLES; dcyclePeriod++)
- {
- prevDCycleEndTime = currDCycleEndTime;
- currDCycleEndTime += JoinReTransmitDCycle[dcyclePeriod].period;
-
- bool isCurrentPeriod = uptime < currDCycleEndTime;
-
- if( isCurrentPeriod || ( dcyclePeriod == ( JOIN_NB_RETRANSMISSION_DCYCLES-1 ) ) )
- {
- period = JoinReTransmitDCycle[dcyclePeriod].period;
- onAirTimeMax = JoinReTransmitDCycle[dcyclePeriod].onAirTimeMax;
- if( isCurrentPeriod == true )
- break;
- }
- }
-
- // Clear aggregate on air time if dutycycle period of last join has elapsed
- if( lastJoinTime < prevDCycleEndTime )
- {
- JoinAggTimeOnAir = 0;
- }
- else
- {
- elapsedTime = ( uptime - prevDCycleEndTime ) % period;
-
- if( dcyclePeriod == JOIN_NB_RETRANSMISSION_DCYCLES )
- {
- if( ( ( uptime - prevDCycleEndTime ) / period ) > ( ( lastJoinTime - prevDCycleEndTime ) / period ) )
- {
- JoinAggTimeOnAir = 0;
- }
- }
- }
-
- if ( JoinAggTimeOnAir >= onAirTimeMax )
- {
- // time off is remaining time until beginning of next period
- timeOff = ( period - elapsedTime );
- }
-
-
- if(timeOff > JOIN_RETRANSMISSION_DC_WAIT_MAX)
- timeOff = JOIN_RETRANSMISSION_DC_WAIT_MAX;
-
- return ( timeOff * 1e6 );
-}
-
-void LoRaMacTestRxWindowsOn( bool enable )
-{
- IsRxWindowsEnabled = enable;
-}
-
-void LoRaMacTestSetMic( uint16_t txPacketCounter )
-{
- UpLinkCounter = txPacketCounter;
- IsUpLinkCounterFixed = true;
-}
-
-void LoRaMacTestSetDutyCycleOn( bool enable )
-{
- DutyCycleOn = enable;
-}
