1 /*! 2 * \file LmHandler.h 3 * 4 * \brief Implements the LoRaMac layer handling. 5 * Provides the possibility to register applicative packages. 6 * 7 * \remark Inspired by the examples provided on the en.i-cube_lrwan fork. 8 * MCD Application Team ( STMicroelectronics International ) 9 * 10 * \copyright Revised BSD License, see section \ref LICENSE. 11 * 12 * \code 13 * ______ _ 14 * / _____) _ | | 15 * ( (____ _____ ____ _| |_ _____ ____| |__ 16 * \____ \| ___ | (_ _) ___ |/ ___) _ \ 17 * _____) ) ____| | | || |_| ____( (___| | | | 18 * (______/|_____)_|_|_| \__)_____)\____)_| |_| 19 * (C)2013-2018 Semtech 20 * 21 * \endcode 22 * 23 * \author Miguel Luis ( Semtech ) 24 */ 25 #ifndef __LORAMAC_HANDLER_H__ 26 #define __LORAMAC_HANDLER_H__ 27 28 #ifdef __cplusplus 29 extern "C" 30 { 31 #endif 32 33 #include "LmHandlerTypes.h" 34 35 typedef struct LmHandlerJoinParams_s 36 { 37 CommissioningParams_t *CommissioningParams; 38 int8_t Datarate; 39 LmHandlerErrorStatus_t Status; 40 }LmHandlerJoinParams_t; 41 42 typedef struct LmHandlerTxParams_s 43 { 44 uint8_t IsMcpsConfirm; 45 LoRaMacEventInfoStatus_t Status; 46 CommissioningParams_t *CommissioningParams; 47 LmHandlerMsgTypes_t MsgType; 48 uint8_t AckReceived; 49 int8_t Datarate; 50 uint32_t UplinkCounter; 51 LmHandlerAppData_t AppData; 52 int8_t TxPower; 53 uint8_t Channel; 54 }LmHandlerTxParams_t; 55 56 typedef struct LmHandlerRxParams_s 57 { 58 uint8_t IsMcpsIndication; 59 LoRaMacEventInfoStatus_t Status; 60 CommissioningParams_t *CommissioningParams; 61 int8_t Datarate; 62 int8_t Rssi; 63 int8_t Snr; 64 uint32_t DownlinkCounter; 65 int8_t RxSlot; 66 }LmHandlerRxParams_t; 67 68 typedef struct LoRaMacHandlerBeaconParams_s 69 { 70 LoRaMacEventInfoStatus_t Status; 71 LmHandlerBeaconState_t State; 72 BeaconInfo_t Info; 73 }LoRaMacHandlerBeaconParams_t; 74 75 typedef struct LmHandlerParams_s 76 { 77 /*! 78 * Region 79 */ 80 LoRaMacRegion_t Region; 81 /*! 82 * Holds the ADR state 83 */ 84 bool AdrEnable; 85 /*! 86 * Uplink frame type 87 */ 88 LmHandlerMsgTypes_t IsTxConfirmed; 89 /*! 90 * Uplink datarate, when \ref AdrEnable is OFF 91 */ 92 int8_t TxDatarate; 93 /*! 94 * Enables/Disables a public network usage 95 */ 96 bool PublicNetworkEnable; 97 /*! 98 * LoRaWAN ETSI duty cycle control enable/disable 99 * 100 * \remark Please note that ETSI mandates duty cycled transmissions. Use only for test purposes 101 */ 102 bool DutyCycleEnabled; 103 /*! 104 * Application data buffer maximum size 105 */ 106 uint8_t DataBufferMaxSize; 107 /*! 108 * Application data buffer pointer 109 */ 110 uint8_t *DataBuffer; 111 /*! 112 * Class B ping-slot periodicity. 113 */ 114 bool PingSlotPeriodicity; 115 }LmHandlerParams_t; 116 117 typedef struct LmHandlerCallbacks_s 118 { 119 /*! 120 * Get the current battery level 121 * 122 * \retval value Battery level ( 0: very low, 254: fully charged ) 123 */ 124 uint8_t ( *GetBatteryLevel )( void ); 125 /*! 126 * Get the current temperature 127 * 128 * \retval value Temperature in degree Celsius 129 */ 130 float ( *GetTemperature )( void ); 131 /*! 132 * Returns a pseudo random seed generated using the MCU Unique ID 133 * 134 * \retval seed Generated pseudo random seed 135 */ 136 uint32_t ( *GetRandomSeed )( void ); 137 /*! 138 *\brief Will be called each time a Radio IRQ is handled by the MAC 139 * layer. 140 * 141 *\warning Runs in a IRQ context. Should only change variables state. 142 */ 143 void ( *OnMacProcess )( void ); 144 /*! 145 * Notifies the upper layer that the NVM context has changed 146 * 147 * \param [IN] state Indicates if we are storing (true) or 148 * restoring (false) the NVM context 149 * 150 * \param [IN] size Number of data bytes which were stored or restored. 151 */ 152 void ( *OnNvmDataChange )( LmHandlerNvmContextStates_t state, uint16_t size ); 153 /*! 154 * Notifies the upper layer that a network parameters have been set 155 * 156 * \param [IN] params notification parameters 157 */ 158 void ( *OnNetworkParametersChange )( CommissioningParams_t *params ); 159 /*! 160 * Notifies the upper layer that a MCPS request has been made to the MAC layer 161 * 162 * \param [IN] status - Request returned status 163 * \param [IN] mcpsRequest - Performed MCPS-Request. Refer to \ref McpsReq_t. 164 * \param [IN] nextTxDelay - Time to wait until another TX is possible. 165 */ 166 void ( *OnMacMcpsRequest )( LoRaMacStatus_t status, McpsReq_t *mcpsReq, TimerTime_t nextTxDelay ); 167 /*! 168 * Notifies the upper layer that a MLME request has been made to the MAC layer 169 * 170 * \param [IN] status - Request returned status 171 * \param [IN] mlmeRequest - Performed MLME-Request. Refer to \ref MlmeReq_t. 172 * \param [IN] nextTxDelay - Time to wait until another TX is possible. 173 */ 174 void ( *OnMacMlmeRequest )( LoRaMacStatus_t status, MlmeReq_t *mlmeReq, TimerTime_t nextTxDelay ); 175 /*! 176 * Notifies the upper layer that a network has been joined 177 * 178 * \param [IN] params notification parameters 179 */ 180 void ( *OnJoinRequest )( LmHandlerJoinParams_t *params ); 181 /*! 182 * Notifies upper layer that a frame has been transmitted 183 * 184 * \param [IN] params notification parameters 185 */ 186 void ( *OnTxData )( LmHandlerTxParams_t *params ); 187 /*! 188 * Notifies the upper layer that an applicative frame has been received 189 * 190 * \param [IN] appData Received applicative data 191 * \param [IN] params notification parameters 192 */ 193 void ( *OnRxData )( LmHandlerAppData_t *appData, LmHandlerRxParams_t *params ); 194 /*! 195 * Confirms the LoRaWAN device class change 196 * 197 * \param [IN] deviceClass New end-device class 198 */ 199 void ( *OnClassChange )( DeviceClass_t deviceClass ); 200 /*! 201 * Notifies the upper layer that the beacon status has changed 202 * 203 * \param [IN] params notification parameters 204 */ 205 void ( *OnBeaconStatusChange )( LoRaMacHandlerBeaconParams_t *params ); 206 #if( LMH_SYS_TIME_UPDATE_NEW_API == 1 ) 207 /*! 208 * Notifies the upper layer that the system time has been updated. 209 * 210 * \param [in] isSynchronized Indicates if the system time is synchronized in the range +/-1 second 211 * \param [in] timeCorrection Received time correction value 212 */ 213 void ( *OnSysTimeUpdate )( bool isSynchronized, int32_t timeCorrection ); 214 #else 215 /*! 216 * Notifies the upper layer that the system time has been updated. 217 */ 218 void ( *OnSysTimeUpdate )( void ); 219 #endif 220 }LmHandlerCallbacks_t; 221 222 /*! 223 * LoRaMac handler initialisation 224 * 225 * \param [IN] callbacks LoRaMac handler callbacks 226 * \param [IN] handlerParams LoRaMac handler parameters 227 * 228 * \retval none 229 */ 230 LmHandlerErrorStatus_t LmHandlerInit( LmHandlerCallbacks_t *callbacks, 231 LmHandlerParams_t *handlerParams ); 232 233 /*! 234 * Indicates if the LoRaMacHandler is busy 235 * 236 * \retval status [true] Busy, [false] free 237 */ 238 bool LmHandlerIsBusy( void ); 239 240 /*! 241 * Processes the LoRaMac and Radio events. 242 * When no pendig operation asks to go in low power mode. 243 * 244 * \remark This function must be called in the main loop. 245 */ 246 void LmHandlerProcess( void ); 247 248 /*! 249 * Gets current duty-cycle wait time 250 * 251 * \retval time to wait in ms 252 */ 253 TimerTime_t LmHandlerGetDutyCycleWaitTime( void ); 254 255 /*! 256 * Instructs the MAC layer to send a ClassA uplink 257 * 258 * \param [IN] appData Data to be sent 259 * \param [IN] isTxConfirmed Indicates if the uplink requires an acknowledgement 260 * 261 * \retval status Returns \ref LORAMAC_HANDLER_SUCCESS if request has been 262 * processed else \ref LORAMAC_HANDLER_ERROR 263 */ 264 LmHandlerErrorStatus_t LmHandlerSend( LmHandlerAppData_t *appData, LmHandlerMsgTypes_t isTxConfirmed ); 265 266 /*! 267 * Join a LoRa Network in classA 268 * 269 * \Note if the device is ABP, this is a pass through function 270 */ 271 void LmHandlerJoin( void ); 272 273 /*! 274 * Check whether the Device is joined to the network 275 * 276 * \param [IN] none 277 * 278 * \retval status Returns \ref LORAMAC_HANDLER_SET if joined else \ref LORAMAC_HANDLER_RESET 279 */ 280 LmHandlerFlagStatus_t LmHandlerJoinStatus( void ); 281 282 /*! 283 * Informs the server on the ping-slot periodicity to use 284 * 285 * \param [IN] periodicity Is equal to 2^periodicity seconds. 286 * Example: 2^3 = 8 seconds. The end-device will open an Rx slot every 8 seconds. 287 * 288 * \retval status Returns \ref LORAMAC_HANDLER_SUCCESS if request has been 289 * processed else \ref LORAMAC_HANDLER_ERROR 290 */ 291 LmHandlerErrorStatus_t LmHandlerPingSlotReq( uint8_t periodicity ); 292 293 /*! 294 * Request the MAC layer to change LoRaWAN class 295 * 296 * \Note Callback \ref LmHandlerConfirmClass informs upper layer that the change has occurred 297 * \Note Only switch from class A to class B/C OR from class B/C to class A is allowed 298 * 299 * \param [IN] newClass New class to be requested 300 * 301 * \retval status Returns \ref LORAMAC_HANDLER_SUCCESS if request has been 302 * processed else \ref LORAMAC_HANDLER_ERROR 303 */ 304 LmHandlerErrorStatus_t LmHandlerRequestClass( DeviceClass_t newClass ); 305 306 /*! 307 * Gets the current LoRaWAN class 308 * 309 * \retval currentClass Current LoRaWAN class 310 */ 311 DeviceClass_t LmHandlerGetCurrentClass( void ); 312 313 /*! 314 * Gets the current datarate 315 * 316 * \retval currentDatarate Current datarate 317 */ 318 int8_t LmHandlerGetCurrentDatarate( void ); 319 320 /*! 321 * Gets the current active region 322 * 323 * \retval currentRegion Current active region 324 */ 325 LoRaMacRegion_t LmHandlerGetActiveRegion( void ); 326 327 /*! 328 * Set system maximum tolerated rx error in milliseconds 329 * 330 * \param [IN] maxErrorInMs Maximum tolerated error in milliseconds 331 * 332 * \retval status Returns \ref LORAMAC_HANDLER_SUCCESS if request has been 333 * processed else \ref LORAMAC_HANDLER_ERROR 334 */ 335 LmHandlerErrorStatus_t LmHandlerSetSystemMaxRxError( uint32_t maxErrorInMs ); 336 337 /* 338 *============================================================================= 339 * PACKAGES HANDLING 340 *============================================================================= 341 */ 342 LmHandlerErrorStatus_t LmHandlerPackageRegister( uint8_t id, void *params ); 343 bool LmHandlerPackageIsInitialized( uint8_t id ); 344 345 #ifdef __cplusplus 346 } 347 #endif 348 349 #endif // __LORAMAC_HANDLER_H__ 350
