Diff: app/LoRaDeviceStateProc.cpp

Revision:

0:6cc76d70e2a1

Child:

4:d49b89361b67

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/LoRaDeviceStateProc.cpp	Thu Apr 06 21:59:50 2017 +0000
@@ -0,0 +1,225 @@
+/*
+ / _____)             _              | |
+( (____  _____ ____ _| |_ _____  ____| |__
+ \____ \| ___ |    (_   _) ___ |/ ___)  _ \
+ _____) ) ____| | | || |_| ____( (___| | | |
+(______/|_____)_|_|_| \__)_____)\____)_| |_|
+    (C)2015 Semtech
+
+Description: Process function calls from various Device states
+
+License: Revised BSD License, see LICENSE.TXT file include in the project
+
+Maintainer: Uttam Bhat
+*/
+
+#include "LoRaDeviceStateProc.h"
+#include "LoRaMacLayerService.h"
+
+eDevicState DeviceState;
+
+sLoRaMacUplinkStatus LoRaMacUplinkStatus;
+
+sLoRaMacDownlinkStatus LoRaMacDownlinkStatus;
+
+LoRaMacPrimitives_t LoRaPrimitives;
+
+LoRaMacCallback_t LoRaCallbacks;
+
+MibRequestConfirm_t LoRaMibReq;
+
+MlmeReq_t mlmeReq;
+
+
+/*!
+ * \brief Function executed on TxNextPacket Timeout event
+ */
+static void OnTxNextPacketTimerEvent( void )
+{
+    MibRequestConfirm_t mibReq;
+    LoRaMacStatus_t status;
+
+    TimerStop( &TxNextPacketTimer );
+
+    mibReq.Type = MIB_NETWORK_JOINED;
+    status = LoRaMacMibGetRequestConfirm( &mibReq );
+
+    if( status == LORAMAC_STATUS_OK )
+    {
+        if( mibReq.Param.IsNetworkJoined == true )
+        {
+            DeviceState = DEVICE_STATE_SEND;            
+        }
+        else
+        {
+            DeviceState = DEVICE_STATE_JOIN;
+        }
+        NextTx = true;
+    }
+}
+
+void DeviceInit( void )
+{
+    LoRaPrimitives.MacMcpsConfirm = McpsConfirm;
+    LoRaPrimitives.MacMcpsIndication = McpsIndication;
+    LoRaPrimitives.MacMlmeConfirm = MlmeConfirm;
+    LoRaCallbacks.GetBatteryLevel = BoardGetBatteryLevel;
+    LoRaMacInitialization( &LoRaPrimitives, &LoRaCallbacks );
+
+    TimerInit( &TxNextPacketTimer, OnTxNextPacketTimerEvent );
+
+    LoRaMibReq.Type = MIB_ADR;
+    LoRaMibReq.Param.AdrEnable = LORAWAN_ADR_ON;
+    LoRaMacMibSetRequestConfirm( &LoRaMibReq );
+
+    LoRaMibReq.Type = MIB_PUBLIC_NETWORK;
+    LoRaMibReq.Param.EnablePublicNetwork = LORAWAN_PUBLIC_NETWORK;
+    LoRaMacMibSetRequestConfirm( &LoRaMibReq );
+
+    LoRaMibReq.Type = MIB_CHANNELS_TX_POWER;
+    LoRaMibReq.Param.ChannelsTxPower = LORAWAN_TX_POWER;
+    LoRaMacMibSetRequestConfirm( &LoRaMibReq );
+
+    LoRaMacDownlinkStatus.DownlinkCounter = 0;
+}
+
+void DeviceJoinUpdate( void )
+{
+    LoRaMibReq.Type = MIB_NETWORK_JOINED;
+    LoRaMacMibGetRequestConfirm( &LoRaMibReq );            
+}
+
+void DeviceJoin( void )
+{
+#if( OVER_THE_AIR_ACTIVATION != 0 )    
+
+    mlmeReq.Type = MLME_JOIN;
+
+    mlmeReq.Req.Join.DevEui = DevEui;
+    mlmeReq.Req.Join.AppEui = AppEui;
+    mlmeReq.Req.Join.AppKey = AppKey;
+
+    if( NextTx == true )
+    {
+        LoRaMacMlmeRequest( &mlmeReq );
+    }
+
+#else   
+    // Choose a random device address if not already defined in Config.h
+    if( DevAddr == 0 )
+    {
+        // Random seed initialization
+        srand1( BoardGetRandomSeed( ) );
+        DevAddr = randr( 0, 0x01FFFFFF );
+    }
+
+    LoRaMibReq.Type = MIB_NET_ID;
+    LoRaMibReq.Param.NetID = LORAWAN_NETWORK_ID;
+    LoRaMacMibSetRequestConfirm( &LoRaMibReq );
+
+    LoRaMibReq.Type = MIB_DEV_ADDR;
+    LoRaMibReq.Param.DevAddr = DevAddr;
+    LoRaMacMibSetRequestConfirm( &LoRaMibReq );
+
+    LoRaMibReq.Type = MIB_NWK_SKEY;
+    LoRaMibReq.Param.NwkSKey = NwkSKey;
+    LoRaMacMibSetRequestConfirm( &LoRaMibReq );
+
+    LoRaMibReq.Type = MIB_APP_SKEY;
+    LoRaMibReq.Param.AppSKey = AppSKey;
+    LoRaMacMibSetRequestConfirm( &LoRaMibReq );
+
+    LoRaMibReq.Type = MIB_NETWORK_JOINED;
+    LoRaMibReq.Param.IsNetworkJoined = true;
+    LoRaMacMibSetRequestConfirm( &LoRaMibReq );
+
+#endif
+}
+
+/*!
+ * \brief   Prepares the payload of the frame
+ */
+void PrepareTxFrame( uint8_t port )
+{
+    MibRequestConfirm_t mibReq;
+
+    if( BoardGetBatteryLevel( ) < LOW_BAT_THRESHOLD )
+    {
+        mibReq.Type = MIB_CHANNELS_TX_POWER;
+        LoRaMacMibGetRequestConfirm( &mibReq );
+        // TX_POWER_30_DBM = 0, TX_POWER_28_DBM = 1, ..., TX_POWER_20_DBM = 5, ..., TX_POWER_10_DBM = 10
+        // The if condition is then "less than" to check if the power is greater than 20 dBm
+        if( mibReq.Param.ChannelsTxPower < TX_POWER_20_DBM )
+        {
+            mibReq.Param.ChannelsTxPower = TX_POWER_20_DBM;
+            LoRaMacMibSetRequestConfirm( &mibReq );
+        }
+    }
+    
+    if( port == 224 )
+    {
+        RunComplianceTest( );        
+    }
+    else
+    {
+        PrepareLoRaFrame( port );
+    }
+}
+
+/*!
+ * \brief   Prepares the payload of the frame
+ *
+ * \retval  [0: frame could be send, 1: error]
+ */
+bool SendFrame( void )
+{
+    McpsReq_t mcpsReq;
+    LoRaMacTxInfo_t txInfo;
+    
+    if( LoRaMacQueryTxPossible( AppDataSize, &txInfo ) != LORAMAC_STATUS_OK )
+    {
+        // Send empty frame in order to flush MAC commands
+        mcpsReq.Type = MCPS_UNCONFIRMED;
+        mcpsReq.Req.Unconfirmed.fBuffer = NULL;
+        mcpsReq.Req.Unconfirmed.fBufferSize = 0;
+        mcpsReq.Req.Unconfirmed.Datarate = LORAWAN_DEFAULT_DATARATE;
+        
+        LoRaMacUplinkStatus.Acked = false;
+        LoRaMacUplinkStatus.Port = 0;
+        LoRaMacUplinkStatus.Buffer = NULL;
+        LoRaMacUplinkStatus.BufferSize = 0;        
+    }
+    else
+    {
+        LoRaMacUplinkStatus.Acked = false;
+        LoRaMacUplinkStatus.Port = AppPort;
+        LoRaMacUplinkStatus.Buffer = AppData;
+        LoRaMacUplinkStatus.BufferSize = AppDataSize;
+
+        if( ( IsTxConfirmed == false ) || ( LoRaMacUplinkStatus.UplinkCounter == 0 ) )
+        {
+            mcpsReq.Type = MCPS_UNCONFIRMED;
+            mcpsReq.Req.Unconfirmed.fPort = AppPort;
+            mcpsReq.Req.Unconfirmed.fBuffer = AppData;
+            mcpsReq.Req.Unconfirmed.fBufferSize = AppDataSize;
+            mcpsReq.Req.Unconfirmed.Datarate = LORAWAN_DEFAULT_DATARATE;
+        }
+        else
+        {
+            mcpsReq.Type = MCPS_CONFIRMED;
+            mcpsReq.Req.Confirmed.fPort = AppPort;
+            mcpsReq.Req.Confirmed.fBuffer = AppData;
+            mcpsReq.Req.Confirmed.fBufferSize = AppDataSize;
+            mcpsReq.Req.Confirmed.NbTrials = 8;
+            mcpsReq.Req.Confirmed.Datarate = LORAWAN_DEFAULT_DATARATE;
+        }
+    }
+
+    LoRaMacUplinkStatus.Type = mcpsReq.Type;
+
+    if( LoRaMacMcpsRequest( &mcpsReq ) == LORAMAC_STATUS_OK )
+    {
+        return false;
+    }
+    return true;
+}
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