wayne roberts / Mbed OS LoRaWAN_singlechannel_endnode

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Dependencies:   SX127x sx12xx_hal TSL2561

mac/LoRaMac.cpp@5:c108560af4c3, 2017-05-26 (annotated)

Committer:
dudmuck
Date:
Fri May 26 23:07:01 2017 +0000
Revision:
5:c108560af4c3
Parent:
2:f2d9aa163652
Child:
6:240fd4938d51
add sx1272 debug pin, prevent uplink config from being changed by beacon

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dudmuck 0:8f0d0ae0a077 1 /*
dudmuck 0:8f0d0ae0a077 2 / _____) _ | |
dudmuck 0:8f0d0ae0a077 3 ( (____ _____ ____ _| |_ _____ ____| |__
dudmuck 0:8f0d0ae0a077 4 \____ \| ___ | (_ _) ___ |/ ___) _ \
dudmuck 0:8f0d0ae0a077 5 _____) ) ____| | | || |_| ____( (___| | | |
dudmuck 0:8f0d0ae0a077 6 (______/|_____)_|_|_| \__)_____)\____)_| |_|
dudmuck 0:8f0d0ae0a077 7 (C)2013 Semtech
dudmuck 0:8f0d0ae0a077 8 ___ _____ _ ___ _ _____ ___ ___ ___ ___
dudmuck 0:8f0d0ae0a077 9 / __|_ _/_\ / __| |/ / __/ _ \| _ \/ __| __|
dudmuck 0:8f0d0ae0a077 10 \__ \ | |/ _ \ (__| ' <| _| (_) | / (__| _|
dudmuck 0:8f0d0ae0a077 11 |___/ |_/_/ \_\___|_|\_\_| \___/|_|_\\___|___|
dudmuck 0:8f0d0ae0a077 12 embedded.connectivity.solutions===============
dudmuck 0:8f0d0ae0a077 13
dudmuck 0:8f0d0ae0a077 14 Description: LoRa MAC layer implementation
dudmuck 0:8f0d0ae0a077 15
dudmuck 0:8f0d0ae0a077 16 License: Revised BSD License, see LICENSE.TXT file include in the project
dudmuck 0:8f0d0ae0a077 17
dudmuck 0:8f0d0ae0a077 18 Maintainer: Miguel Luis ( Semtech ), Gregory Cristian ( Semtech ) and Daniel Jäckle ( STACKFORCE )
dudmuck 0:8f0d0ae0a077 19 */
dudmuck 0:8f0d0ae0a077 20 #include <math.h>
dudmuck 0:8f0d0ae0a077 21 #include "board.h"
dudmuck 0:8f0d0ae0a077 22
dudmuck 0:8f0d0ae0a077 23 #include "LoRaMacCrypto.h"
dudmuck 0:8f0d0ae0a077 24 #include "LoRaMac.h"
dudmuck 0:8f0d0ae0a077 25 #include "LoRaMacTest.h"
dudmuck 0:8f0d0ae0a077 26
dudmuck 0:8f0d0ae0a077 27 #define PING_SLOT_RESOLUTION_us 30000
dudmuck 0:8f0d0ae0a077 28
dudmuck 0:8f0d0ae0a077 29 /*!
dudmuck 0:8f0d0ae0a077 30 * Maximum PHY layer payload size
dudmuck 0:8f0d0ae0a077 31 */
dudmuck 0:8f0d0ae0a077 32 #define LORAMAC_PHY_MAXPAYLOAD 255
dudmuck 0:8f0d0ae0a077 33
dudmuck 0:8f0d0ae0a077 34 /*!
dudmuck 0:8f0d0ae0a077 35 * Maximum MAC commands buffer size
dudmuck 0:8f0d0ae0a077 36 */
dudmuck 0:8f0d0ae0a077 37 #define LORA_MAC_COMMAND_MAX_LENGTH 15
dudmuck 0:8f0d0ae0a077 38
dudmuck 0:8f0d0ae0a077 39 /*!
dudmuck 0:8f0d0ae0a077 40 * FRMPayload overhead to be used when setting the Radio.SetMaxPayloadLength
dudmuck 0:8f0d0ae0a077 41 * in RxWindowSetup function.
dudmuck 0:8f0d0ae0a077 42 * Maximum PHYPayload = MaxPayloadOfDatarate/MaxPayloadOfDatarateRepeater + LORA_MAC_FRMPAYLOAD_OVERHEAD
dudmuck 0:8f0d0ae0a077 43 */
dudmuck 0:8f0d0ae0a077 44 #define LORA_MAC_FRMPAYLOAD_OVERHEAD 13 // MHDR(1) + FHDR(7) + Port(1) + MIC(4)
dudmuck 0:8f0d0ae0a077 45
dudmuck 0:8f0d0ae0a077 46 /*!
dudmuck 0:8f0d0ae0a077 47 * LoRaMac duty cycle for the back-off procedure during the first hour.
dudmuck 0:8f0d0ae0a077 48 */
dudmuck 0:8f0d0ae0a077 49 #define BACKOFF_DC_1_HOUR 100
dudmuck 0:8f0d0ae0a077 50
dudmuck 0:8f0d0ae0a077 51 /*!
dudmuck 0:8f0d0ae0a077 52 * LoRaMac duty cycle for the back-off procedure during the next 10 hours.
dudmuck 0:8f0d0ae0a077 53 */
dudmuck 0:8f0d0ae0a077 54 #define BACKOFF_DC_10_HOURS 1000
dudmuck 0:8f0d0ae0a077 55
dudmuck 0:8f0d0ae0a077 56 /*!
dudmuck 0:8f0d0ae0a077 57 * LoRaMac duty cycle for the back-off procedure during the next 24 hours.
dudmuck 0:8f0d0ae0a077 58 */
dudmuck 0:8f0d0ae0a077 59 #define BACKOFF_DC_24_HOURS 10000
dudmuck 0:8f0d0ae0a077 60
dudmuck 0:8f0d0ae0a077 61 /*!
dudmuck 0:8f0d0ae0a077 62 * Device IEEE EUI
dudmuck 0:8f0d0ae0a077 63 */
dudmuck 0:8f0d0ae0a077 64 static uint8_t *LoRaMacDevEui;
dudmuck 0:8f0d0ae0a077 65
dudmuck 0:8f0d0ae0a077 66 /*!
dudmuck 0:8f0d0ae0a077 67 * Application IEEE EUI
dudmuck 0:8f0d0ae0a077 68 */
dudmuck 0:8f0d0ae0a077 69 static uint8_t *LoRaMacAppEui;
dudmuck 0:8f0d0ae0a077 70
dudmuck 0:8f0d0ae0a077 71 /*!
dudmuck 0:8f0d0ae0a077 72 * AES encryption/decryption cipher application key
dudmuck 0:8f0d0ae0a077 73 */
dudmuck 0:8f0d0ae0a077 74 static uint8_t *LoRaMacAppKey;
dudmuck 0:8f0d0ae0a077 75
dudmuck 0:8f0d0ae0a077 76 /*!
dudmuck 0:8f0d0ae0a077 77 * AES encryption/decryption cipher network session key
dudmuck 0:8f0d0ae0a077 78 */
dudmuck 0:8f0d0ae0a077 79 static uint8_t LoRaMacNwkSKey[] =
dudmuck 0:8f0d0ae0a077 80 {
dudmuck 0:8f0d0ae0a077 81 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
dudmuck 0:8f0d0ae0a077 82 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
dudmuck 0:8f0d0ae0a077 83 };
dudmuck 0:8f0d0ae0a077 84
dudmuck 0:8f0d0ae0a077 85 /*!
dudmuck 0:8f0d0ae0a077 86 * AES encryption/decryption cipher application session key
dudmuck 0:8f0d0ae0a077 87 */
dudmuck 0:8f0d0ae0a077 88 static uint8_t LoRaMacAppSKey[] =
dudmuck 0:8f0d0ae0a077 89 {
dudmuck 0:8f0d0ae0a077 90 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
dudmuck 0:8f0d0ae0a077 91 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
dudmuck 0:8f0d0ae0a077 92 };
dudmuck 0:8f0d0ae0a077 93
dudmuck 0:8f0d0ae0a077 94 /*!
dudmuck 0:8f0d0ae0a077 95 * Device nonce is a random value extracted by issuing a sequence of RSSI
dudmuck 0:8f0d0ae0a077 96 * measurements
dudmuck 0:8f0d0ae0a077 97 */
dudmuck 0:8f0d0ae0a077 98 static uint16_t LoRaMacDevNonce;
dudmuck 0:8f0d0ae0a077 99
dudmuck 0:8f0d0ae0a077 100 /*!
dudmuck 0:8f0d0ae0a077 101 * Network ID ( 3 bytes )
dudmuck 0:8f0d0ae0a077 102 */
dudmuck 0:8f0d0ae0a077 103 static uint32_t LoRaMacNetID;
dudmuck 0:8f0d0ae0a077 104
dudmuck 0:8f0d0ae0a077 105 /*!
dudmuck 0:8f0d0ae0a077 106 * Mote Address
dudmuck 0:8f0d0ae0a077 107 */
dudmuck 0:8f0d0ae0a077 108 static uint32_t LoRaMacDevAddr;
dudmuck 0:8f0d0ae0a077 109
dudmuck 0:8f0d0ae0a077 110 /*!
dudmuck 0:8f0d0ae0a077 111 * Multicast channels linked list
dudmuck 0:8f0d0ae0a077 112 */
dudmuck 0:8f0d0ae0a077 113 static MulticastParams_t *MulticastChannels = NULL;
dudmuck 0:8f0d0ae0a077 114
dudmuck 0:8f0d0ae0a077 115 /*!
dudmuck 0:8f0d0ae0a077 116 * Actual device class
dudmuck 0:8f0d0ae0a077 117 */
dudmuck 0:8f0d0ae0a077 118 static DeviceClass_t LoRaMacDeviceClass;
dudmuck 0:8f0d0ae0a077 119
dudmuck 0:8f0d0ae0a077 120 /*!
dudmuck 0:8f0d0ae0a077 121 * Indicates if the node is connected to a private or public network
dudmuck 0:8f0d0ae0a077 122 */
dudmuck 0:8f0d0ae0a077 123 static bool PublicNetwork;
dudmuck 0:8f0d0ae0a077 124
dudmuck 0:8f0d0ae0a077 125
dudmuck 0:8f0d0ae0a077 126 /*!
dudmuck 0:8f0d0ae0a077 127 * Buffer containing the data to be sent or received.
dudmuck 0:8f0d0ae0a077 128 */
dudmuck 0:8f0d0ae0a077 129 static uint8_t LoRaMacBuffer[LORAMAC_PHY_MAXPAYLOAD];
dudmuck 0:8f0d0ae0a077 130
dudmuck 0:8f0d0ae0a077 131 /*!
dudmuck 0:8f0d0ae0a077 132 * Length of packet in LoRaMacBuffer
dudmuck 0:8f0d0ae0a077 133 */
dudmuck 0:8f0d0ae0a077 134 static uint16_t LoRaMacBufferPktLen = 0;
dudmuck 0:8f0d0ae0a077 135
dudmuck 0:8f0d0ae0a077 136 /*!
dudmuck 0:8f0d0ae0a077 137 * Length of the payload in LoRaMacBuffer
dudmuck 0:8f0d0ae0a077 138 */
dudmuck 0:8f0d0ae0a077 139 static uint8_t LoRaMacTxPayloadLen = 0;
dudmuck 0:8f0d0ae0a077 140
dudmuck 0:8f0d0ae0a077 141 /*!
dudmuck 0:8f0d0ae0a077 142 * Buffer containing the upper layer data.
dudmuck 0:8f0d0ae0a077 143 */
dudmuck 0:8f0d0ae0a077 144 static uint8_t LoRaMacRxPayload[LORAMAC_PHY_MAXPAYLOAD];
dudmuck 0:8f0d0ae0a077 145
dudmuck 0:8f0d0ae0a077 146 /*!
dudmuck 0:8f0d0ae0a077 147 * LoRaMAC frame counter. Each time a packet is sent the counter is incremented.
dudmuck 0:8f0d0ae0a077 148 * Only the 16 LSB bits are sent
dudmuck 0:8f0d0ae0a077 149 */
dudmuck 0:8f0d0ae0a077 150 static uint32_t UpLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 151
dudmuck 0:8f0d0ae0a077 152 /*!
dudmuck 0:8f0d0ae0a077 153 * LoRaMAC frame counter. Each time a packet is received the counter is incremented.
dudmuck 0:8f0d0ae0a077 154 * Only the 16 LSB bits are received
dudmuck 0:8f0d0ae0a077 155 */
dudmuck 0:8f0d0ae0a077 156 static uint32_t DownLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 157
dudmuck 0:8f0d0ae0a077 158 /*!
dudmuck 0:8f0d0ae0a077 159 * IsPacketCounterFixed enables the MIC field tests by fixing the
dudmuck 0:8f0d0ae0a077 160 * UpLinkCounter value
dudmuck 0:8f0d0ae0a077 161 */
dudmuck 0:8f0d0ae0a077 162 static bool IsUpLinkCounterFixed = false;
dudmuck 0:8f0d0ae0a077 163
dudmuck 0:8f0d0ae0a077 164 /*!
dudmuck 0:8f0d0ae0a077 165 * Used for test purposes. Disables the opening of the reception windows.
dudmuck 0:8f0d0ae0a077 166 */
dudmuck 0:8f0d0ae0a077 167 static bool IsRxWindowsEnabled = true;
dudmuck 0:8f0d0ae0a077 168 LowPowerTimeout rx_timeout;
dudmuck 0:8f0d0ae0a077 169
dudmuck 0:8f0d0ae0a077 170 /*!
dudmuck 0:8f0d0ae0a077 171 * Indicates if the MAC layer has already joined a network.
dudmuck 0:8f0d0ae0a077 172 */
dudmuck 0:8f0d0ae0a077 173 static bool IsLoRaMacNetworkJoined = false;
dudmuck 0:8f0d0ae0a077 174
dudmuck 0:8f0d0ae0a077 175 /*!
dudmuck 0:8f0d0ae0a077 176 * If the node has sent a FRAME_TYPE_DATA_CONFIRMED_UP this variable indicates
dudmuck 0:8f0d0ae0a077 177 * if the nodes needs to manage the server acknowledgement.
dudmuck 0:8f0d0ae0a077 178 */
dudmuck 0:8f0d0ae0a077 179 static bool NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 180
dudmuck 0:8f0d0ae0a077 181 /*!
dudmuck 0:8f0d0ae0a077 182 * If the server has sent a FRAME_TYPE_DATA_CONFIRMED_DOWN this variable indicates
dudmuck 0:8f0d0ae0a077 183 * if the ACK bit must be set for the next transmission
dudmuck 0:8f0d0ae0a077 184 */
dudmuck 0:8f0d0ae0a077 185 static bool SrvAckRequested = false;
dudmuck 0:8f0d0ae0a077 186
dudmuck 0:8f0d0ae0a077 187 /*!
dudmuck 0:8f0d0ae0a077 188 * Indicates if the MAC layer wants to send MAC commands
dudmuck 0:8f0d0ae0a077 189 */
dudmuck 0:8f0d0ae0a077 190 static bool MacCommandsInNextTx = false;
dudmuck 0:8f0d0ae0a077 191
dudmuck 0:8f0d0ae0a077 192 /*!
dudmuck 0:8f0d0ae0a077 193 * Contains the current MacCommandsBuffer index
dudmuck 0:8f0d0ae0a077 194 */
dudmuck 0:8f0d0ae0a077 195 static uint8_t MacCommandsBufferIndex = 0;
dudmuck 0:8f0d0ae0a077 196
dudmuck 0:8f0d0ae0a077 197 /*!
dudmuck 0:8f0d0ae0a077 198 * Contains the current MacCommandsBuffer index for MAC commands to repeat
dudmuck 0:8f0d0ae0a077 199 */
dudmuck 0:8f0d0ae0a077 200 static uint8_t MacCommandsBufferToRepeatIndex = 0;
dudmuck 0:8f0d0ae0a077 201
dudmuck 0:8f0d0ae0a077 202 /*!
dudmuck 0:8f0d0ae0a077 203 * Buffer containing the MAC layer commands
dudmuck 0:8f0d0ae0a077 204 */
dudmuck 0:8f0d0ae0a077 205 static uint8_t MacCommandsBuffer[LORA_MAC_COMMAND_MAX_LENGTH];
dudmuck 0:8f0d0ae0a077 206
dudmuck 0:8f0d0ae0a077 207 /*!
dudmuck 0:8f0d0ae0a077 208 * Buffer containing the MAC layer commands which must be repeated
dudmuck 0:8f0d0ae0a077 209 */
dudmuck 0:8f0d0ae0a077 210 static uint8_t MacCommandsBufferToRepeat[LORA_MAC_COMMAND_MAX_LENGTH];
dudmuck 0:8f0d0ae0a077 211
dudmuck 0:8f0d0ae0a077 212 #if defined( USE_BAND_915_SINGLE )
dudmuck 0:8f0d0ae0a077 213 /*!
dudmuck 0:8f0d0ae0a077 214 * Data rates table definition
dudmuck 0:8f0d0ae0a077 215 */
dudmuck 0:8f0d0ae0a077 216 const uint8_t Datarates[] = { 10, 9, 8, 7, 8, 0, 0, 0, 12, 11, 10, 9, 8, 7, 0, 0 };
dudmuck 0:8f0d0ae0a077 217
dudmuck 0:8f0d0ae0a077 218 /*!
dudmuck 0:8f0d0ae0a077 219 * Bandwidths table definition in Hz
dudmuck 0:8f0d0ae0a077 220 */
dudmuck 0:8f0d0ae0a077 221 const uint32_t Bandwidths[] = { 125000, 125000, 125000, 125000, 500000, 0, 0, 0, 500000, 500000, 500000, 500000, 500000, 500000, 0, 0 };
dudmuck 0:8f0d0ae0a077 222
dudmuck 0:8f0d0ae0a077 223 /*!
dudmuck 0:8f0d0ae0a077 224 * LoRaMac bands
dudmuck 0:8f0d0ae0a077 225 */
dudmuck 1:53c30224eda8 226 /*static Band_t Bands[LORA_MAX_NB_BANDS] =
dudmuck 0:8f0d0ae0a077 227 {
dudmuck 0:8f0d0ae0a077 228 BAND0,
dudmuck 1:53c30224eda8 229 };*/
dudmuck 0:8f0d0ae0a077 230
dudmuck 0:8f0d0ae0a077 231 /*!
dudmuck 0:8f0d0ae0a077 232 * LoRaMAC channels
dudmuck 0:8f0d0ae0a077 233 */
dudmuck 0:8f0d0ae0a077 234 static ChannelParams_t Channels[LORA_MAX_NB_CHANNELS];
dudmuck 0:8f0d0ae0a077 235
dudmuck 0:8f0d0ae0a077 236 /*!
dudmuck 0:8f0d0ae0a077 237 * Tx output powers table definition
dudmuck 0:8f0d0ae0a077 238 */
dudmuck 0:8f0d0ae0a077 239 const int8_t TxPowers[] = { 30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10 };
dudmuck 0:8f0d0ae0a077 240 #define LORAMAC_FIRST_CHANNEL ( (uint32_t)910.0e6 )
dudmuck 0:8f0d0ae0a077 241 #define LORAMAC_STEPWIDTH_CHANNEL ( (uint32_t)800e3 )
dudmuck 0:8f0d0ae0a077 242
dudmuck 0:8f0d0ae0a077 243 #define BEACON_SIZE 6 /* bytes */
dudmuck 0:8f0d0ae0a077 244 #define BEACON_CHANNEL_BW 2 /* 2=500KHz */
dudmuck 0:8f0d0ae0a077 245 #define BEACON_CHANNEL_DR LORAMAC_DEFAULT_DATARATE
dudmuck 0:8f0d0ae0a077 246
dudmuck 0:8f0d0ae0a077 247 /* measured beacon duration (all at bw500)
dudmuck 0:8f0d0ae0a077 248 * latency assigned for correct rx-before-tx measurement */
dudmuck 0:8f0d0ae0a077 249 #if (LORAMAC_DEFAULT_DATARATE == DR_8)
dudmuck 0:8f0d0ae0a077 250 #define BEACON_RXDONE_LATENCY_us 6000
dudmuck 0:8f0d0ae0a077 251 #define BEACON_TOA_us 209000
dudmuck 0:8f0d0ae0a077 252 #elif (LORAMAC_DEFAULT_DATARATE == DR_9)
dudmuck 0:8f0d0ae0a077 253 #define BEACON_RXDONE_LATENCY_us 3500
dudmuck 0:8f0d0ae0a077 254 #define BEACON_TOA_us 105000
dudmuck 0:8f0d0ae0a077 255 #elif (LORAMAC_DEFAULT_DATARATE == DR_10)
dudmuck 0:8f0d0ae0a077 256 #define BEACON_RXDONE_LATENCY_us 1460
dudmuck 0:8f0d0ae0a077 257 #define BEACON_TOA_us 52800
dudmuck 0:8f0d0ae0a077 258 #elif (LORAMAC_DEFAULT_DATARATE == DR_11)
dudmuck 0:8f0d0ae0a077 259 #define BEACON_RXDONE_LATENCY_us 2000
dudmuck 0:8f0d0ae0a077 260 #define BEACON_TOA_us 26000
dudmuck 0:8f0d0ae0a077 261 #elif (LORAMAC_DEFAULT_DATARATE == DR_12)
dudmuck 0:8f0d0ae0a077 262 #define BEACON_RXDONE_LATENCY_us 1500
dudmuck 0:8f0d0ae0a077 263 #define BEACON_TOA_us 12800
dudmuck 0:8f0d0ae0a077 264 #elif (LORAMAC_DEFAULT_DATARATE == DR_13)
dudmuck 0:8f0d0ae0a077 265 #define BEACON_RXDONE_LATENCY_us 1300
dudmuck 0:8f0d0ae0a077 266 #define BEACON_TOA_us 6560
dudmuck 0:8f0d0ae0a077 267 #endif
dudmuck 0:8f0d0ae0a077 268
dudmuck 0:8f0d0ae0a077 269 #define BEACON_GUARD_us 2000000 // pre-beacon start
dudmuck 0:8f0d0ae0a077 270 #define BEACON_RESERVED_us 2120000 // post-beacon start
dudmuck 0:8f0d0ae0a077 271
dudmuck 0:8f0d0ae0a077 272 //#define BEACON_SYMBOL_TIMEOUT_UNLOCKED 100
dudmuck 0:8f0d0ae0a077 273
dudmuck 0:8f0d0ae0a077 274 #else
dudmuck 0:8f0d0ae0a077 275 #error "Please define a frequency band in the compiler options."
dudmuck 0:8f0d0ae0a077 276 #endif
dudmuck 0:8f0d0ae0a077 277
dudmuck 0:8f0d0ae0a077 278 #define BEACON_MIN_SYMBOL_TIMEOUT 8
dudmuck 0:8f0d0ae0a077 279
dudmuck 0:8f0d0ae0a077 280 LowPowerTimer lp_timer;
dudmuck 0:8f0d0ae0a077 281
dudmuck 0:8f0d0ae0a077 282 /*!
dudmuck 0:8f0d0ae0a077 283 * LoRaMac parameters
dudmuck 0:8f0d0ae0a077 284 */
dudmuck 0:8f0d0ae0a077 285 LoRaMacParams_t LoRaMacParams;
dudmuck 0:8f0d0ae0a077 286
dudmuck 0:8f0d0ae0a077 287 /*!
dudmuck 0:8f0d0ae0a077 288 * LoRaMac default parameters
dudmuck 0:8f0d0ae0a077 289 */
dudmuck 0:8f0d0ae0a077 290 LoRaMacParams_t LoRaMacParamsDefaults;
dudmuck 0:8f0d0ae0a077 291
dudmuck 0:8f0d0ae0a077 292 /*!
dudmuck 0:8f0d0ae0a077 293 * Uplink messages repetitions counter
dudmuck 0:8f0d0ae0a077 294 */
dudmuck 0:8f0d0ae0a077 295 static uint8_t ChannelsNbRepCounter = 0;
dudmuck 0:8f0d0ae0a077 296
dudmuck 0:8f0d0ae0a077 297 static uint32_t AggregatedLastTxDoneTime_us;
dudmuck 0:8f0d0ae0a077 298
dudmuck 0:8f0d0ae0a077 299 /*!
dudmuck 0:8f0d0ae0a077 300 * Current channel index
dudmuck 0:8f0d0ae0a077 301 */
dudmuck 0:8f0d0ae0a077 302 static uint8_t Channel;
dudmuck 0:8f0d0ae0a077 303
dudmuck 0:8f0d0ae0a077 304 /*!
dudmuck 0:8f0d0ae0a077 305 * Stores the time at LoRaMac initialization.
dudmuck 0:8f0d0ae0a077 306 *
dudmuck 0:8f0d0ae0a077 307 * \remark Used for the BACKOFF_DC computation.
dudmuck 0:8f0d0ae0a077 308 */
dudmuck 0:8f0d0ae0a077 309 //static TimerTime_t LoRaMacInitializationTime = 0;
dudmuck 0:8f0d0ae0a077 310
dudmuck 0:8f0d0ae0a077 311 /*!
dudmuck 0:8f0d0ae0a077 312 * LoRaMac internal states
dudmuck 0:8f0d0ae0a077 313 */
dudmuck 0:8f0d0ae0a077 314 enum eLoRaMacState
dudmuck 0:8f0d0ae0a077 315 {
dudmuck 0:8f0d0ae0a077 316 LORAMAC_IDLE = 0x00000000,
dudmuck 0:8f0d0ae0a077 317 LORAMAC_TX_RUNNING = 0x00000001,
dudmuck 0:8f0d0ae0a077 318 LORAMAC_RX = 0x00000002,
dudmuck 0:8f0d0ae0a077 319 LORAMAC_ACK_REQ = 0x00000004,
dudmuck 0:8f0d0ae0a077 320 LORAMAC_ACK_RETRY = 0x00000008,
dudmuck 0:8f0d0ae0a077 321 LORAMAC_TX_DELAYED = 0x00000010,
dudmuck 0:8f0d0ae0a077 322 LORAMAC_TX_CONFIG = 0x00000020,
dudmuck 0:8f0d0ae0a077 323 LORAMAC_RX_ABORT = 0x00000040,
dudmuck 0:8f0d0ae0a077 324 LORAMAC_TX_SCHED = 0x00000080,
dudmuck 0:8f0d0ae0a077 325 };
dudmuck 0:8f0d0ae0a077 326
dudmuck 0:8f0d0ae0a077 327 /*!
dudmuck 0:8f0d0ae0a077 328 * LoRaMac internal state
dudmuck 0:8f0d0ae0a077 329 */
dudmuck 0:8f0d0ae0a077 330 uint32_t LoRaMacState = LORAMAC_IDLE;
dudmuck 0:8f0d0ae0a077 331
dudmuck 0:8f0d0ae0a077 332 /*!
dudmuck 0:8f0d0ae0a077 333 * LoRaMac timer used to check the LoRaMacState (runs every second)
dudmuck 0:8f0d0ae0a077 334 */
dudmuck 0:8f0d0ae0a077 335 static LowPowerTimeout MacStateCheckTimer;
dudmuck 0:8f0d0ae0a077 336
dudmuck 0:8f0d0ae0a077 337 /*!
dudmuck 0:8f0d0ae0a077 338 * LoRaMac upper layer event functions
dudmuck 0:8f0d0ae0a077 339 */
dudmuck 0:8f0d0ae0a077 340 static LoRaMacPrimitives_t *LoRaMacPrimitives;
dudmuck 0:8f0d0ae0a077 341
dudmuck 0:8f0d0ae0a077 342 /*!
dudmuck 0:8f0d0ae0a077 343 * LoRaMac upper layer callback functions
dudmuck 0:8f0d0ae0a077 344 */
dudmuck 0:8f0d0ae0a077 345 static LoRaMacCallback_t *LoRaMacCallbacks;
dudmuck 0:8f0d0ae0a077 346
dudmuck 0:8f0d0ae0a077 347 /*!
dudmuck 0:8f0d0ae0a077 348 * Radio events function pointer
dudmuck 0:8f0d0ae0a077 349 */
dudmuck 0:8f0d0ae0a077 350 static RadioEvents_t RadioEvents;
dudmuck 0:8f0d0ae0a077 351
dudmuck 0:8f0d0ae0a077 352 /*!
dudmuck 0:8f0d0ae0a077 353 * LoRaMac duty cycle delayed Tx timer
dudmuck 0:8f0d0ae0a077 354 */
dudmuck 0:8f0d0ae0a077 355 static LowPowerTimeout TxDelayedTimer;
dudmuck 0:8f0d0ae0a077 356 LowPowerTimeout tx_timeout;
dudmuck 0:8f0d0ae0a077 357
dudmuck 0:8f0d0ae0a077 358
dudmuck 0:8f0d0ae0a077 359 /*!
dudmuck 0:8f0d0ae0a077 360 * LoRaMac reception windows delay
dudmuck 0:8f0d0ae0a077 361 * \remark normal frame: RxWindowXDelay = ReceiveDelayX - RADIO_WAKEUP_TIME
dudmuck 0:8f0d0ae0a077 362 * join frame : RxWindowXDelay = JoinAcceptDelayX - RADIO_WAKEUP_TIME
dudmuck 0:8f0d0ae0a077 363 */
dudmuck 0:8f0d0ae0a077 364 static uint32_t RxWindowDelay_us;
dudmuck 0:8f0d0ae0a077 365
dudmuck 0:8f0d0ae0a077 366 typedef enum {
dudmuck 0:8f0d0ae0a077 367 BEACON_STATE_NONE = 0,
dudmuck 0:8f0d0ae0a077 368 BEACON_STATE_FIRST_ACQ,
dudmuck 0:8f0d0ae0a077 369 BEACON_STATE_ACQ_ERROR,
dudmuck 0:8f0d0ae0a077 370 BEACON_STATE_LOCKED_,
dudmuck 0:8f0d0ae0a077 371 } beacon_state_e;
dudmuck 0:8f0d0ae0a077 372
dudmuck 0:8f0d0ae0a077 373 struct beacon_struct {
dudmuck 0:8f0d0ae0a077 374 int rx_precession_us; // positive: rxing before tx start, negative: rxing after tx start
dudmuck 0:8f0d0ae0a077 375 unsigned int RxBeaconSetupAt_us;
dudmuck 0:8f0d0ae0a077 376 unsigned int LastBeaconRx_us; // updated only at beacon reception
dudmuck 0:8f0d0ae0a077 377 unsigned int LastBeaconStart_us; // updated at beacon reception and beacon reception timeout
dudmuck 0:8f0d0ae0a077 378 unsigned int next_beacon_expected_us;
dudmuck 0:8f0d0ae0a077 379 int BeaconRxTimerError_us;
dudmuck 0:8f0d0ae0a077 380
dudmuck 0:8f0d0ae0a077 381 float symbol_period_secs;
dudmuck 0:8f0d0ae0a077 382
dudmuck 0:8f0d0ae0a077 383 uint8_t Precess_symbols; // how many symbols we want to start receiver before expected transmitter
dudmuck 0:8f0d0ae0a077 384 uint8_t SymbolTimeout;
dudmuck 0:8f0d0ae0a077 385 float SymbolTimeout_sec;
dudmuck 0:8f0d0ae0a077 386 uint8_t num_missed;
dudmuck 0:8f0d0ae0a077 387
dudmuck 0:8f0d0ae0a077 388 beacon_state_e state;
dudmuck 0:8f0d0ae0a077 389
dudmuck 0:8f0d0ae0a077 390 uint16_t tx_slot_offset;
dudmuck 0:8f0d0ae0a077 391 uint16_t periodicity_slots;
dudmuck 0:8f0d0ae0a077 392
dudmuck 0:8f0d0ae0a077 393 LowPowerTimeout timeout;
dudmuck 0:8f0d0ae0a077 394 bool have_beacon;
dudmuck 0:8f0d0ae0a077 395 } BeaconCtx;
dudmuck 0:8f0d0ae0a077 396
dudmuck 0:8f0d0ae0a077 397 /*!
dudmuck 0:8f0d0ae0a077 398 * Rx window parameters
dudmuck 0:8f0d0ae0a077 399 */
dudmuck 0:8f0d0ae0a077 400 typedef struct
dudmuck 0:8f0d0ae0a077 401 {
dudmuck 0:8f0d0ae0a077 402 int8_t Datarate;
dudmuck 0:8f0d0ae0a077 403 uint8_t Bandwidth;
dudmuck 0:8f0d0ae0a077 404 uint32_t RxWindowTimeout;
dudmuck 0:8f0d0ae0a077 405 int32_t RxOffset;
dudmuck 0:8f0d0ae0a077 406 }RxConfigParams_t;
dudmuck 0:8f0d0ae0a077 407
dudmuck 0:8f0d0ae0a077 408 /*!
dudmuck 0:8f0d0ae0a077 409 * Rx windows params
dudmuck 0:8f0d0ae0a077 410 */
dudmuck 0:8f0d0ae0a077 411 static RxConfigParams_t RxWindowsParam;
dudmuck 0:8f0d0ae0a077 412
dudmuck 0:8f0d0ae0a077 413 static bool expecting_beacon;
dudmuck 0:8f0d0ae0a077 414 /*!
dudmuck 0:8f0d0ae0a077 415 * Acknowledge timeout timer. Used for packet retransmissions.
dudmuck 0:8f0d0ae0a077 416 */
dudmuck 0:8f0d0ae0a077 417 static LowPowerTimeout AckTimeoutTimer;
dudmuck 0:8f0d0ae0a077 418
dudmuck 0:8f0d0ae0a077 419 uint32_t TxTimeOnAir = 0;
dudmuck 0:8f0d0ae0a077 420
dudmuck 0:8f0d0ae0a077 421 /*!
dudmuck 0:8f0d0ae0a077 422 * Number of trials for the Join Request
dudmuck 0:8f0d0ae0a077 423 */
dudmuck 0:8f0d0ae0a077 424 static uint8_t JoinRequestTrials;
dudmuck 0:8f0d0ae0a077 425
dudmuck 0:8f0d0ae0a077 426 /*!
dudmuck 0:8f0d0ae0a077 427 * Maximum number of trials for the Join Request
dudmuck 0:8f0d0ae0a077 428 */
dudmuck 0:8f0d0ae0a077 429 static uint8_t MaxJoinRequestTrials;
dudmuck 0:8f0d0ae0a077 430
dudmuck 0:8f0d0ae0a077 431 /*!
dudmuck 0:8f0d0ae0a077 432 * Structure to hold an MCPS indication data.
dudmuck 0:8f0d0ae0a077 433 */
dudmuck 0:8f0d0ae0a077 434 static McpsIndication_t McpsIndication;
dudmuck 0:8f0d0ae0a077 435
dudmuck 0:8f0d0ae0a077 436 /*!
dudmuck 0:8f0d0ae0a077 437 * Structure to hold MCPS confirm data.
dudmuck 0:8f0d0ae0a077 438 */
dudmuck 0:8f0d0ae0a077 439 static McpsConfirm_t McpsConfirm;
dudmuck 0:8f0d0ae0a077 440
dudmuck 0:8f0d0ae0a077 441 /*!
dudmuck 0:8f0d0ae0a077 442 * Structure to hold MLME confirm data.
dudmuck 0:8f0d0ae0a077 443 */
dudmuck 0:8f0d0ae0a077 444 static MlmeConfirm_t MlmeConfirm;
dudmuck 0:8f0d0ae0a077 445
dudmuck 0:8f0d0ae0a077 446 /*!
dudmuck 0:8f0d0ae0a077 447 * Structure to hold MLME indication data.
dudmuck 0:8f0d0ae0a077 448 */
dudmuck 0:8f0d0ae0a077 449 static MlmeIndication_t MlmeIndication;
dudmuck 0:8f0d0ae0a077 450
dudmuck 0:8f0d0ae0a077 451 /*!
dudmuck 0:8f0d0ae0a077 452 * LoRaMac tx/rx operation state
dudmuck 0:8f0d0ae0a077 453 */
dudmuck 0:8f0d0ae0a077 454 LoRaMacFlags_t LoRaMacFlags;
dudmuck 0:8f0d0ae0a077 455
dudmuck 0:8f0d0ae0a077 456 /*!
dudmuck 0:8f0d0ae0a077 457 * \brief Function to be executed on Radio Tx Done event
dudmuck 0:8f0d0ae0a077 458 */
dudmuck 0:8f0d0ae0a077 459 static void OnRadioTxDone( unsigned int tx_done_us );
dudmuck 0:8f0d0ae0a077 460 unsigned int TxDone_us;
dudmuck 0:8f0d0ae0a077 461
dudmuck 0:8f0d0ae0a077 462 /*!
dudmuck 0:8f0d0ae0a077 463 * \brief This function prepares the MAC to abort the execution of function
dudmuck 0:8f0d0ae0a077 464 * OnRadioRxDone in case of a reception error.
dudmuck 0:8f0d0ae0a077 465 */
dudmuck 0:8f0d0ae0a077 466 static void PrepareRxDoneAbort( void );
dudmuck 0:8f0d0ae0a077 467
dudmuck 0:8f0d0ae0a077 468 /*!
dudmuck 0:8f0d0ae0a077 469 * \brief Function to be executed on Radio Rx Done event
dudmuck 0:8f0d0ae0a077 470 */
dudmuck 0:8f0d0ae0a077 471 static void OnRadioRxDone(unsigned rx_us, uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr );
dudmuck 0:8f0d0ae0a077 472
dudmuck 0:8f0d0ae0a077 473 /*!
dudmuck 0:8f0d0ae0a077 474 * \brief Function executed on Radio Tx Timeout event
dudmuck 0:8f0d0ae0a077 475 */
dudmuck 0:8f0d0ae0a077 476 static void OnRadioTxTimeout( void );
dudmuck 0:8f0d0ae0a077 477
dudmuck 0:8f0d0ae0a077 478 /*!
dudmuck 0:8f0d0ae0a077 479 * \brief Function executed on Radio Rx error event
dudmuck 0:8f0d0ae0a077 480 */
dudmuck 0:8f0d0ae0a077 481 static void OnRadioRxError( void );
dudmuck 0:8f0d0ae0a077 482
dudmuck 0:8f0d0ae0a077 483 /*!
dudmuck 0:8f0d0ae0a077 484 * \brief Function executed on Radio Rx Timeout event
dudmuck 0:8f0d0ae0a077 485 */
dudmuck 0:8f0d0ae0a077 486 static void OnRadioRxTimeout( void );
dudmuck 0:8f0d0ae0a077 487
dudmuck 0:8f0d0ae0a077 488 /*!
dudmuck 0:8f0d0ae0a077 489 * \brief Function executed on Resend Frame timer event.
dudmuck 0:8f0d0ae0a077 490 */
dudmuck 0:8f0d0ae0a077 491 static void OnMacStateCheckTimerEvent( void );
dudmuck 0:8f0d0ae0a077 492
dudmuck 0:8f0d0ae0a077 493 /*!
dudmuck 0:8f0d0ae0a077 494 * \brief Function executed on duty cycle delayed Tx timer event
dudmuck 0:8f0d0ae0a077 495 */
dudmuck 0:8f0d0ae0a077 496 static void OnTxDelayedTimerEvent( void );
dudmuck 0:8f0d0ae0a077 497
dudmuck 0:8f0d0ae0a077 498 static void OnRxWindowTimerEvent( void );
dudmuck 0:8f0d0ae0a077 499
dudmuck 0:8f0d0ae0a077 500 /*!
dudmuck 0:8f0d0ae0a077 501 * \brief Function executed on AckTimeout timer event
dudmuck 0:8f0d0ae0a077 502 */
dudmuck 0:8f0d0ae0a077 503 static void OnAckTimeoutTimerEvent( void );
dudmuck 0:8f0d0ae0a077 504
dudmuck 0:8f0d0ae0a077 505
dudmuck 0:8f0d0ae0a077 506 /*!
dudmuck 0:8f0d0ae0a077 507 * \brief Initializes and opens the reception window
dudmuck 0:8f0d0ae0a077 508 *
dudmuck 0:8f0d0ae0a077 509 * \param [IN] freq window channel frequency
dudmuck 0:8f0d0ae0a077 510 * \param [IN] datarate window channel datarate
dudmuck 0:8f0d0ae0a077 511 * \param [IN] bandwidth window channel bandwidth
dudmuck 0:8f0d0ae0a077 512 * \param [IN] timeout window channel timeout
dudmuck 0:8f0d0ae0a077 513 *
dudmuck 0:8f0d0ae0a077 514 * \retval status Operation status [true: Success, false: Fail]
dudmuck 0:8f0d0ae0a077 515 */
dudmuck 0:8f0d0ae0a077 516 static bool RxWindowSetup( uint32_t freq, int8_t datarate, uint32_t bandwidth, uint16_t timeout, bool rxContinuous );
dudmuck 0:8f0d0ae0a077 517
dudmuck 0:8f0d0ae0a077 518 /*!
dudmuck 0:8f0d0ae0a077 519 * \brief Verifies if the RX window 2 frequency is in range
dudmuck 0:8f0d0ae0a077 520 *
dudmuck 0:8f0d0ae0a077 521 * \param [IN] freq window channel frequency
dudmuck 0:8f0d0ae0a077 522 *
dudmuck 0:8f0d0ae0a077 523 * \retval status Function status [1: OK, 0: Frequency not applicable]
dudmuck 0:8f0d0ae0a077 524 */
dudmuck 0:8f0d0ae0a077 525 //static bool Rx2FreqInRange( uint32_t freq );
dudmuck 0:8f0d0ae0a077 526
dudmuck 0:8f0d0ae0a077 527 /*!
dudmuck 0:8f0d0ae0a077 528 * \brief Adds a new MAC command to be sent.
dudmuck 0:8f0d0ae0a077 529 *
dudmuck 0:8f0d0ae0a077 530 * \Remark MAC layer internal function
dudmuck 0:8f0d0ae0a077 531 *
dudmuck 0:8f0d0ae0a077 532 * \param [in] cmd MAC command to be added
dudmuck 0:8f0d0ae0a077 533 * [MOTE_MAC_LINK_CHECK_REQ,
dudmuck 0:8f0d0ae0a077 534 * MOTE_MAC_LINK_ADR_ANS,
dudmuck 0:8f0d0ae0a077 535 * MOTE_MAC_DUTY_CYCLE_ANS,
dudmuck 0:8f0d0ae0a077 536 * MOTE_MAC_RX2_PARAM_SET_ANS,
dudmuck 0:8f0d0ae0a077 537 * MOTE_MAC_DEV_STATUS_ANS
dudmuck 0:8f0d0ae0a077 538 * MOTE_MAC_NEW_CHANNEL_ANS]
dudmuck 0:8f0d0ae0a077 539 * \param [in] p1 1st parameter ( optional depends on the command )
dudmuck 0:8f0d0ae0a077 540 * \param [in] p2 2nd parameter ( optional depends on the command )
dudmuck 0:8f0d0ae0a077 541 *
dudmuck 0:8f0d0ae0a077 542 * \retval status Function status [0: OK, 1: Unknown command, 2: Buffer full]
dudmuck 0:8f0d0ae0a077 543 */
dudmuck 0:8f0d0ae0a077 544 static LoRaMacStatus_t AddMacCommand( uint8_t cmd, uint8_t p1, uint8_t p2 );
dudmuck 0:8f0d0ae0a077 545
dudmuck 0:8f0d0ae0a077 546 /*!
dudmuck 0:8f0d0ae0a077 547 * \brief Parses the MAC commands which must be repeated.
dudmuck 0:8f0d0ae0a077 548 *
dudmuck 0:8f0d0ae0a077 549 * \Remark MAC layer internal function
dudmuck 0:8f0d0ae0a077 550 *
dudmuck 0:8f0d0ae0a077 551 * \param [IN] cmdBufIn Buffer which stores the MAC commands to send
dudmuck 0:8f0d0ae0a077 552 * \param [IN] length Length of the input buffer to parse
dudmuck 0:8f0d0ae0a077 553 * \param [OUT] cmdBufOut Buffer which stores the MAC commands which must be
dudmuck 0:8f0d0ae0a077 554 * repeated.
dudmuck 0:8f0d0ae0a077 555 *
dudmuck 0:8f0d0ae0a077 556 * \retval Size of the MAC commands to repeat.
dudmuck 0:8f0d0ae0a077 557 */
dudmuck 0:8f0d0ae0a077 558 static uint8_t ParseMacCommandsToRepeat( uint8_t* cmdBufIn, uint8_t length, uint8_t* cmdBufOut );
dudmuck 0:8f0d0ae0a077 559
dudmuck 0:8f0d0ae0a077 560 /*!
dudmuck 0:8f0d0ae0a077 561 * \brief Verifies, if a value is in a given range.
dudmuck 0:8f0d0ae0a077 562 *
dudmuck 0:8f0d0ae0a077 563 * \param value Value to verify, if it is in range
dudmuck 0:8f0d0ae0a077 564 *
dudmuck 0:8f0d0ae0a077 565 * \param min Minimum possible value
dudmuck 0:8f0d0ae0a077 566 *
dudmuck 0:8f0d0ae0a077 567 * \param max Maximum possible value
dudmuck 0:8f0d0ae0a077 568 *
dudmuck 0:8f0d0ae0a077 569 * \retval Returns the maximum valid tx power
dudmuck 0:8f0d0ae0a077 570 */
dudmuck 0:8f0d0ae0a077 571 static bool ValueInRange( int8_t value, int8_t min, int8_t max );
dudmuck 0:8f0d0ae0a077 572
dudmuck 0:8f0d0ae0a077 573
dudmuck 0:8f0d0ae0a077 574 /*!
dudmuck 0:8f0d0ae0a077 575 * \brief Decodes MAC commands in the fOpts field and in the payload
dudmuck 0:8f0d0ae0a077 576 */
dudmuck 0:8f0d0ae0a077 577 static void ProcessMacCommands( uint8_t *payload, uint8_t macIndex, uint8_t commandsSize, uint8_t snr );
dudmuck 0:8f0d0ae0a077 578
dudmuck 0:8f0d0ae0a077 579 /*!
dudmuck 0:8f0d0ae0a077 580 * \brief LoRaMAC layer generic send frame
dudmuck 0:8f0d0ae0a077 581 *
dudmuck 0:8f0d0ae0a077 582 * \param [IN] macHdr MAC header field
dudmuck 0:8f0d0ae0a077 583 * \param [IN] fPort MAC payload port
dudmuck 0:8f0d0ae0a077 584 * \param [IN] fBuffer MAC data buffer to be sent
dudmuck 0:8f0d0ae0a077 585 * \param [IN] fBufferSize MAC data buffer size
dudmuck 0:8f0d0ae0a077 586 * \retval status Status of the operation.
dudmuck 0:8f0d0ae0a077 587 */
dudmuck 0:8f0d0ae0a077 588 LoRaMacStatus_t Send( LoRaMacHeader_t *macHdr, uint8_t fPort, void *fBuffer, uint16_t fBufferSize );
dudmuck 0:8f0d0ae0a077 589
dudmuck 0:8f0d0ae0a077 590 /*!
dudmuck 0:8f0d0ae0a077 591 * \brief LoRaMAC layer frame buffer initialization
dudmuck 0:8f0d0ae0a077 592 *
dudmuck 0:8f0d0ae0a077 593 * \param [IN] macHdr MAC header field
dudmuck 0:8f0d0ae0a077 594 * \param [IN] fCtrl MAC frame control field
dudmuck 0:8f0d0ae0a077 595 * \param [IN] fOpts MAC commands buffer
dudmuck 0:8f0d0ae0a077 596 * \param [IN] fPort MAC payload port
dudmuck 0:8f0d0ae0a077 597 * \param [IN] fBuffer MAC data buffer to be sent
dudmuck 0:8f0d0ae0a077 598 * \param [IN] fBufferSize MAC data buffer size
dudmuck 0:8f0d0ae0a077 599 * \retval status Status of the operation.
dudmuck 0:8f0d0ae0a077 600 */
dudmuck 0:8f0d0ae0a077 601 LoRaMacStatus_t PrepareFrame( LoRaMacHeader_t *macHdr, LoRaMacFrameCtrl_t *fCtrl, uint8_t fPort, void *fBuffer, uint16_t fBufferSize );
dudmuck 0:8f0d0ae0a077 602
dudmuck 0:8f0d0ae0a077 603 /*
dudmuck 0:8f0d0ae0a077 604 * \brief Schedules the frame according to the duty cycle
dudmuck 0:8f0d0ae0a077 605 *
dudmuck 0:8f0d0ae0a077 606 * \retval Status of the operation
dudmuck 0:8f0d0ae0a077 607 */
dudmuck 0:8f0d0ae0a077 608 static LoRaMacStatus_t ScheduleTx( void );
dudmuck 0:8f0d0ae0a077 609
dudmuck 0:8f0d0ae0a077 610
dudmuck 0:8f0d0ae0a077 611 /*!
dudmuck 0:8f0d0ae0a077 612 * \brief LoRaMAC layer prepared frame buffer transmission with channel specification
dudmuck 0:8f0d0ae0a077 613 *
dudmuck 0:8f0d0ae0a077 614 * \remark PrepareFrame must be called at least once before calling this
dudmuck 0:8f0d0ae0a077 615 * function.
dudmuck 0:8f0d0ae0a077 616 *
dudmuck 0:8f0d0ae0a077 617 * \param [IN] channel Channel parameters
dudmuck 0:8f0d0ae0a077 618 * \retval status Status of the operation.
dudmuck 0:8f0d0ae0a077 619 */
dudmuck 0:8f0d0ae0a077 620 LoRaMacStatus_t SendFrameOnChannel( ChannelParams_t channel );
dudmuck 0:8f0d0ae0a077 621
dudmuck 0:8f0d0ae0a077 622 /*!
dudmuck 0:8f0d0ae0a077 623 * \brief Sets the radio in continuous transmission mode
dudmuck 0:8f0d0ae0a077 624 *
dudmuck 0:8f0d0ae0a077 625 * \remark Uses the radio parameters set on the previous transmission.
dudmuck 0:8f0d0ae0a077 626 *
dudmuck 0:8f0d0ae0a077 627 * \param [IN] timeout Time in seconds while the radio is kept in continuous wave mode
dudmuck 0:8f0d0ae0a077 628 * \retval status Status of the operation.
dudmuck 0:8f0d0ae0a077 629 */
dudmuck 0:8f0d0ae0a077 630 LoRaMacStatus_t SetTxContinuousWave( uint16_t timeout );
dudmuck 0:8f0d0ae0a077 631
dudmuck 0:8f0d0ae0a077 632 /*!
dudmuck 0:8f0d0ae0a077 633 * \brief Sets the radio in continuous transmission mode
dudmuck 0:8f0d0ae0a077 634 *
dudmuck 0:8f0d0ae0a077 635 * \remark Uses the radio parameters set on the previous transmission.
dudmuck 0:8f0d0ae0a077 636 *
dudmuck 0:8f0d0ae0a077 637 * \param [IN] timeout Time in seconds while the radio is kept in continuous wave mode
dudmuck 0:8f0d0ae0a077 638 * \param [IN] frequency RF frequency to be set.
dudmuck 0:8f0d0ae0a077 639 * \param [IN] power RF ouptput power to be set.
dudmuck 0:8f0d0ae0a077 640 * \retval status Status of the operation.
dudmuck 0:8f0d0ae0a077 641 */
dudmuck 0:8f0d0ae0a077 642 LoRaMacStatus_t SetTxContinuousWave1( uint16_t timeout, uint32_t frequency, uint8_t power );
dudmuck 0:8f0d0ae0a077 643
dudmuck 0:8f0d0ae0a077 644 /*!
dudmuck 0:8f0d0ae0a077 645 * \brief Resets MAC specific parameters to default
dudmuck 0:8f0d0ae0a077 646 */
dudmuck 0:8f0d0ae0a077 647 static void ResetMacParameters( void );
dudmuck 0:8f0d0ae0a077 648
dudmuck 0:8f0d0ae0a077 649 void
dudmuck 0:8f0d0ae0a077 650 loramac_print_status()
dudmuck 0:8f0d0ae0a077 651 {
dudmuck 1:53c30224eda8 652 isr_printf("LoRaMacState:%lx\r\n", LoRaMacState);
dudmuck 0:8f0d0ae0a077 653 }
dudmuck 0:8f0d0ae0a077 654
dudmuck 0:8f0d0ae0a077 655 /*
dudmuck 0:8f0d0ae0a077 656 * Rx window precise timing
dudmuck 0:8f0d0ae0a077 657 *
dudmuck 0:8f0d0ae0a077 658 * For more details please consult the following document, chapter 3.1.2.
dudmuck 0:8f0d0ae0a077 659 * http://www.semtech.com/images/datasheet/SX1272_settings_for_LoRaWAN_v2.0.pdf
dudmuck 0:8f0d0ae0a077 660 * or
dudmuck 0:8f0d0ae0a077 661 * http://www.semtech.com/images/datasheet/SX1276_settings_for_LoRaWAN_v2.0.pdf
dudmuck 0:8f0d0ae0a077 662 *
dudmuck 0:8f0d0ae0a077 663 * Downlink start: T = Tx + 1s (+/- 20 us)
dudmuck 0:8f0d0ae0a077 664 * |
dudmuck 0:8f0d0ae0a077 665 * TRxEarly | TRxLate
dudmuck 0:8f0d0ae0a077 666 * | | |
dudmuck 0:8f0d0ae0a077 667 * | | +---+---+---+---+---+---+---+---+
dudmuck 0:8f0d0ae0a077 668 * | | | Latest Rx window |
dudmuck 0:8f0d0ae0a077 669 * | | +---+---+---+---+---+---+---+---+
dudmuck 0:8f0d0ae0a077 670 * | | |
dudmuck 0:8f0d0ae0a077 671 * +---+---+---+---+---+---+---+---+
dudmuck 0:8f0d0ae0a077 672 * | Earliest Rx window |
dudmuck 0:8f0d0ae0a077 673 * +---+---+---+---+---+---+---+---+
dudmuck 0:8f0d0ae0a077 674 * |
dudmuck 0:8f0d0ae0a077 675 * +---+---+---+---+---+---+---+---+
dudmuck 0:8f0d0ae0a077 676 *Downlink preamble 8 symbols | | | | | | | | |
dudmuck 0:8f0d0ae0a077 677 * +---+---+---+---+---+---+---+---+
dudmuck 0:8f0d0ae0a077 678 *
dudmuck 0:8f0d0ae0a077 679 * Worst case Rx window timings
dudmuck 0:8f0d0ae0a077 680 *
dudmuck 0:8f0d0ae0a077 681 * TRxLate = DEFAULT_MIN_RX_SYMBOLS * tSymbol - RADIO_WAKEUP_TIME
dudmuck 0:8f0d0ae0a077 682 * TRxEarly = 8 - DEFAULT_MIN_RX_SYMBOLS * tSymbol - RxWindowTimeout - RADIO_WAKEUP_TIME
dudmuck 0:8f0d0ae0a077 683 *
dudmuck 0:8f0d0ae0a077 684 * TRxLate - TRxEarly = 2 * DEFAULT_SYSTEM_MAX_RX_ERROR
dudmuck 0:8f0d0ae0a077 685 *
dudmuck 0:8f0d0ae0a077 686 * RxOffset = ( TRxLate + TRxEarly ) / 2
dudmuck 0:8f0d0ae0a077 687 *
dudmuck 0:8f0d0ae0a077 688 * RxWindowTimeout = ( 2 * DEFAULT_MIN_RX_SYMBOLS - 8 ) * tSymbol + 2 * DEFAULT_SYSTEM_MAX_RX_ERROR
dudmuck 0:8f0d0ae0a077 689 * RxOffset = 4 * tSymbol - RxWindowTimeout / 2 - RADIO_WAKE_UP_TIME
dudmuck 0:8f0d0ae0a077 690 *
dudmuck 0:8f0d0ae0a077 691 * Minimal value of RxWindowTimeout must be 5 symbols which implies that the system always tolerates at least an error of 1.5 * tSymbol
dudmuck 0:8f0d0ae0a077 692 */
dudmuck 0:8f0d0ae0a077 693 /*!
dudmuck 0:8f0d0ae0a077 694 * Computes the Rx window parameters.
dudmuck 0:8f0d0ae0a077 695 *
dudmuck 0:8f0d0ae0a077 696 * \param [IN] datarate Rx window datarate to be used
dudmuck 0:8f0d0ae0a077 697 * \param [IN] rxError Maximum timing error of the receiver. in milliseconds
dudmuck 0:8f0d0ae0a077 698 * The receiver will turn on in a [-rxError : +rxError] ms
dudmuck 0:8f0d0ae0a077 699 * interval around RxOffset
dudmuck 0:8f0d0ae0a077 700 *
dudmuck 0:8f0d0ae0a077 701 * \retval rxConfigParams Returns a RxConfigParams_t structure.
dudmuck 0:8f0d0ae0a077 702 */
dudmuck 0:8f0d0ae0a077 703 static RxConfigParams_t ComputeRxWindowParameters( int8_t datarate, uint32_t rxError );
dudmuck 0:8f0d0ae0a077 704
dudmuck 0:8f0d0ae0a077 705 static void OnRadioTxDone( unsigned int tx_done_us )
dudmuck 0:8f0d0ae0a077 706 {
dudmuck 0:8f0d0ae0a077 707 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 708 TxDone_us = tx_done_us;
dudmuck 0:8f0d0ae0a077 709
dudmuck 0:8f0d0ae0a077 710 // Setup timers
dudmuck 0:8f0d0ae0a077 711 if( IsRxWindowsEnabled == true )
dudmuck 0:8f0d0ae0a077 712 {
dudmuck 0:8f0d0ae0a077 713 rx_timeout.attach_us(&OnRxWindowTimerEvent, RxWindowDelay_us);
dudmuck 0:8f0d0ae0a077 714 if( NodeAckRequested == true )
dudmuck 0:8f0d0ae0a077 715 {
dudmuck 0:8f0d0ae0a077 716 AckTimeoutTimer.attach_us(&OnAckTimeoutTimerEvent, (RxWindowDelay_us/1000) + ACK_TIMEOUT_us + randr(-ACK_TIMEOUT_RND_us, ACK_TIMEOUT_RND_us));
dudmuck 0:8f0d0ae0a077 717 }
dudmuck 0:8f0d0ae0a077 718 }
dudmuck 0:8f0d0ae0a077 719 else
dudmuck 0:8f0d0ae0a077 720 {
dudmuck 0:8f0d0ae0a077 721 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 722 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 723
dudmuck 0:8f0d0ae0a077 724 if( LoRaMacFlags.Value == 0 )
dudmuck 0:8f0d0ae0a077 725 {
dudmuck 0:8f0d0ae0a077 726 LoRaMacFlags.Bits.McpsReq = 1;
dudmuck 0:8f0d0ae0a077 727 }
dudmuck 0:8f0d0ae0a077 728 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 729 }
dudmuck 0:8f0d0ae0a077 730
dudmuck 0:8f0d0ae0a077 731 // Update last tx done time for the current channel
dudmuck 1:53c30224eda8 732 //Bands[Channels[Channel].Band].last_tx_done_us = tx_done_us;
dudmuck 0:8f0d0ae0a077 733 // Update Aggregated last tx done time
dudmuck 0:8f0d0ae0a077 734 AggregatedLastTxDoneTime_us = tx_done_us;
dudmuck 0:8f0d0ae0a077 735 // Update Backoff
dudmuck 0:8f0d0ae0a077 736
dudmuck 0:8f0d0ae0a077 737 if( NodeAckRequested == false )
dudmuck 0:8f0d0ae0a077 738 {
dudmuck 0:8f0d0ae0a077 739 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 740 ChannelsNbRepCounter++;
dudmuck 0:8f0d0ae0a077 741 }
dudmuck 0:8f0d0ae0a077 742 }
dudmuck 0:8f0d0ae0a077 743
dudmuck 0:8f0d0ae0a077 744 static void PrepareRxDoneAbort( void )
dudmuck 0:8f0d0ae0a077 745 {
dudmuck 0:8f0d0ae0a077 746 LoRaMacState |= LORAMAC_RX_ABORT;
dudmuck 0:8f0d0ae0a077 747
dudmuck 0:8f0d0ae0a077 748 if( NodeAckRequested )
dudmuck 0:8f0d0ae0a077 749 {
dudmuck 0:8f0d0ae0a077 750 OnAckTimeoutTimerEvent( );
dudmuck 0:8f0d0ae0a077 751 }
dudmuck 0:8f0d0ae0a077 752
dudmuck 0:8f0d0ae0a077 753 LoRaMacFlags.Bits.McpsInd = 1;
dudmuck 0:8f0d0ae0a077 754 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 755
dudmuck 0:8f0d0ae0a077 756 // Trig OnMacCheckTimerEvent call as soon as possible
dudmuck 0:8f0d0ae0a077 757 OnMacStateCheckTimerEvent();
dudmuck 0:8f0d0ae0a077 758 }
dudmuck 0:8f0d0ae0a077 759
dudmuck 0:8f0d0ae0a077 760 void send_callback()
dudmuck 0:8f0d0ae0a077 761 {
dudmuck 5:c108560af4c3 762 Radio.SetTxConfig(
dudmuck 5:c108560af4c3 763 /* RadioModems_t modem */ MODEM_LORA,
dudmuck 5:c108560af4c3 764 /* int8_t power */ TxPowers[LoRaMacParams.ChannelsTxPower],
dudmuck 5:c108560af4c3 765 /* uint32_t fdev */ 0,
dudmuck 5:c108560af4c3 766 /* uint32_t bandwidth */ 2,
dudmuck 5:c108560af4c3 767 /* uint32_t datarate */ Datarates[LoRaMacParams.ChannelsDatarate_fixed],
dudmuck 5:c108560af4c3 768 /* uint8_t coderate */ 1,
dudmuck 5:c108560af4c3 769 /* uint16_t preambleLen */ 8,
dudmuck 5:c108560af4c3 770 /* bool fixLen */ false,
dudmuck 5:c108560af4c3 771 /* bool crcOn */ true,
dudmuck 5:c108560af4c3 772 /* bool freqHopOn */ 0,
dudmuck 5:c108560af4c3 773 /* uint8_t hopPeriod */ 0,
dudmuck 5:c108560af4c3 774 /* bool iqInverted */ false,
dudmuck 5:c108560af4c3 775 /* uint32_t timeout */ 3e3
dudmuck 5:c108560af4c3 776 );
dudmuck 0:8f0d0ae0a077 777 Radio.Send( LoRaMacBuffer, LoRaMacBufferPktLen );
dudmuck 0:8f0d0ae0a077 778
dudmuck 0:8f0d0ae0a077 779 LoRaMacState &= ~LORAMAC_TX_SCHED;
dudmuck 0:8f0d0ae0a077 780 LoRaMacState |= LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 781
dudmuck 0:8f0d0ae0a077 782 // Starts the MAC layer status check timer
dudmuck 0:8f0d0ae0a077 783 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 5:c108560af4c3 784
dudmuck 5:c108560af4c3 785 /*
dudmuck 5:c108560af4c3 786 unsigned int now_us = lp_timer.read_us();
dudmuck 5:c108560af4c3 787 int us_since_beacon_start = now_us - BeaconCtx.LastBeaconStart_us;
dudmuck 5:c108560af4c3 788 int now_slot = (us_since_beacon_start - BEACON_RESERVED_us) / 30000;
dudmuck 5:c108560af4c3 789 isr_printf("send now slot:%u\r\n", now_slot);
dudmuck 5:c108560af4c3 790 */
dudmuck 0:8f0d0ae0a077 791 }
dudmuck 0:8f0d0ae0a077 792
dudmuck 0:8f0d0ae0a077 793 void OnRxBeaconSetup()
dudmuck 0:8f0d0ae0a077 794 {
dudmuck 0:8f0d0ae0a077 795 BeaconCtx.RxBeaconSetupAt_us = lp_timer.read_us();
dudmuck 0:8f0d0ae0a077 796
dudmuck 0:8f0d0ae0a077 797 Radio.SetRxConfig(
dudmuck 0:8f0d0ae0a077 798 /* RadioModems_t */ MODEM_LORA,
dudmuck 0:8f0d0ae0a077 799 /* uint32_t bandwidth */ BEACON_CHANNEL_BW,
dudmuck 0:8f0d0ae0a077 800 /* uint32_t datarate */ Datarates[BEACON_CHANNEL_DR],
dudmuck 0:8f0d0ae0a077 801 /* uint8_t coderate */ 1,
dudmuck 0:8f0d0ae0a077 802 /* uint32_t bandwidthAfc */ 0,
dudmuck 0:8f0d0ae0a077 803 /* uint16_t preambleLen */ 10,
dudmuck 0:8f0d0ae0a077 804 /* uint16_t symbTimeout */ BeaconCtx.SymbolTimeout,
dudmuck 0:8f0d0ae0a077 805 /* bool fixLen */ true,
dudmuck 0:8f0d0ae0a077 806 /* uint8_t payloadLen */ BEACON_SIZE,
dudmuck 0:8f0d0ae0a077 807 /* bool crcOn */ false,
dudmuck 0:8f0d0ae0a077 808 /* bool freqHopOn */ 0,
dudmuck 0:8f0d0ae0a077 809 /* uint8_t hopPeriod */ 0,
dudmuck 0:8f0d0ae0a077 810 /* bool iqInverted */ false,
dudmuck 0:8f0d0ae0a077 811 /* bool rxContinuous */false
dudmuck 0:8f0d0ae0a077 812 );
dudmuck 0:8f0d0ae0a077 813
dudmuck 0:8f0d0ae0a077 814 Radio.Rx(2000);
dudmuck 0:8f0d0ae0a077 815
dudmuck 0:8f0d0ae0a077 816 expecting_beacon = true;
dudmuck 1:53c30224eda8 817 //isr_printf("OnRxBeaconSetup() %u\r\n", BeaconCtx.SymbolTimeout);
dudmuck 0:8f0d0ae0a077 818
dudmuck 0:8f0d0ae0a077 819 }
dudmuck 0:8f0d0ae0a077 820
dudmuck 0:8f0d0ae0a077 821 static void set_beacon_symbol_timeout(float secs)
dudmuck 0:8f0d0ae0a077 822 {
dudmuck 0:8f0d0ae0a077 823 BeaconCtx.SymbolTimeout = secs / BeaconCtx.symbol_period_secs;
dudmuck 0:8f0d0ae0a077 824 if (BeaconCtx.SymbolTimeout < (BEACON_MIN_SYMBOL_TIMEOUT+BeaconCtx.Precess_symbols)) {
dudmuck 0:8f0d0ae0a077 825 BeaconCtx.SymbolTimeout = BEACON_MIN_SYMBOL_TIMEOUT+BeaconCtx.Precess_symbols;
dudmuck 0:8f0d0ae0a077 826 BeaconCtx.SymbolTimeout_sec = BeaconCtx.SymbolTimeout * BeaconCtx.symbol_period_secs;
dudmuck 0:8f0d0ae0a077 827 }
dudmuck 0:8f0d0ae0a077 828 }
dudmuck 0:8f0d0ae0a077 829
dudmuck 0:8f0d0ae0a077 830 static uint16_t beacon_crc( uint8_t *buffer, uint16_t length )
dudmuck 0:8f0d0ae0a077 831 {
dudmuck 0:8f0d0ae0a077 832 // The CRC calculation follows CCITT
dudmuck 0:8f0d0ae0a077 833 const uint16_t polynom = 0x1021;
dudmuck 0:8f0d0ae0a077 834 // CRC initial value
dudmuck 0:8f0d0ae0a077 835 uint16_t crc = 0x0000;
dudmuck 0:8f0d0ae0a077 836
dudmuck 0:8f0d0ae0a077 837 if( buffer == NULL )
dudmuck 0:8f0d0ae0a077 838 {
dudmuck 0:8f0d0ae0a077 839 return 0;
dudmuck 0:8f0d0ae0a077 840 }
dudmuck 0:8f0d0ae0a077 841
dudmuck 0:8f0d0ae0a077 842 for( uint16_t i = 0; i < length; ++i )
dudmuck 0:8f0d0ae0a077 843 {
dudmuck 0:8f0d0ae0a077 844 crc ^= ( uint16_t ) buffer[i] << 8;
dudmuck 0:8f0d0ae0a077 845 for( uint16_t j = 0; j < 8; ++j )
dudmuck 0:8f0d0ae0a077 846 {
dudmuck 0:8f0d0ae0a077 847 crc = ( crc & 0x8000 ) ? ( crc << 1 ) ^ polynom : ( crc << 1 );
dudmuck 0:8f0d0ae0a077 848 }
dudmuck 0:8f0d0ae0a077 849 }
dudmuck 0:8f0d0ae0a077 850
dudmuck 0:8f0d0ae0a077 851 return crc;
dudmuck 0:8f0d0ae0a077 852 }
dudmuck 0:8f0d0ae0a077 853
dudmuck 0:8f0d0ae0a077 854 /* low power timer needs larger value due to poor resolution */
dudmuck 0:8f0d0ae0a077 855 #define TARGET_PRECESSION_US 3000
dudmuck 0:8f0d0ae0a077 856 #define BEACON_RX_TIMEOUT_LOCKED 0.008
dudmuck 0:8f0d0ae0a077 857
dudmuck 0:8f0d0ae0a077 858 void rx_beacon(unsigned int rx_us, uint8_t* payload, uint16_t size)
dudmuck 0:8f0d0ae0a077 859 {
dudmuck 0:8f0d0ae0a077 860 static bool compensate_precession = false;
dudmuck 0:8f0d0ae0a077 861 int32_t compensation = 0;
dudmuck 0:8f0d0ae0a077 862 unsigned ThisBeaconRx_us = rx_us - (BEACON_TOA_us + BEACON_RXDONE_LATENCY_us);
dudmuck 0:8f0d0ae0a077 863
dudmuck 0:8f0d0ae0a077 864 BeaconCtx.rx_precession_us = ThisBeaconRx_us - BeaconCtx.RxBeaconSetupAt_us;
dudmuck 0:8f0d0ae0a077 865 if (BeaconCtx.state != BEACON_STATE_FIRST_ACQ) {
dudmuck 0:8f0d0ae0a077 866 unsigned int intervals_since_last = (ThisBeaconRx_us / BEACON_INTERVAL_us) - (BeaconCtx.LastBeaconRx_us / BEACON_INTERVAL_us);
dudmuck 0:8f0d0ae0a077 867 /* get average of error history */
dudmuck 0:8f0d0ae0a077 868 BeaconCtx.BeaconRxTimerError_us = (ThisBeaconRx_us - BeaconCtx.LastBeaconRx_us) % BEACON_INTERVAL_us;
dudmuck 0:8f0d0ae0a077 869 /* BeaconRxTimerError: positive means our clock is fast
dudmuck 0:8f0d0ae0a077 870 * negative means our clock is slow */
dudmuck 0:8f0d0ae0a077 871 if (BeaconCtx.BeaconRxTimerError_us > (BEACON_INTERVAL_us/2))
dudmuck 0:8f0d0ae0a077 872 BeaconCtx.BeaconRxTimerError_us -= BEACON_INTERVAL_us; // negative value representing slow crystal
dudmuck 0:8f0d0ae0a077 873
dudmuck 0:8f0d0ae0a077 874 if (intervals_since_last > 1) {
dudmuck 0:8f0d0ae0a077 875 /* timer error is measured over more than one beacon period */
dudmuck 0:8f0d0ae0a077 876 BeaconCtx.BeaconRxTimerError_us /= intervals_since_last;
dudmuck 0:8f0d0ae0a077 877 }
dudmuck 0:8f0d0ae0a077 878
dudmuck 0:8f0d0ae0a077 879 if (BeaconCtx.state == BEACON_STATE_ACQ_ERROR) {
dudmuck 1:53c30224eda8 880 isr_printf("-->LOCKED ");
dudmuck 0:8f0d0ae0a077 881 BeaconCtx.state = BEACON_STATE_LOCKED_;
dudmuck 0:8f0d0ae0a077 882 compensate_precession = true;
dudmuck 0:8f0d0ae0a077 883 set_beacon_symbol_timeout(BEACON_RX_TIMEOUT_LOCKED);
dudmuck 0:8f0d0ae0a077 884 }
dudmuck 0:8f0d0ae0a077 885 } else {
dudmuck 0:8f0d0ae0a077 886 /* ignore precession at first acquisition because it has slot resolution added */
dudmuck 1:53c30224eda8 887 isr_printf("-->ACQ_ERROR ");
dudmuck 0:8f0d0ae0a077 888 // next beacon will give us our crystal error
dudmuck 0:8f0d0ae0a077 889 BeaconCtx.state = BEACON_STATE_ACQ_ERROR;
dudmuck 0:8f0d0ae0a077 890 }
dudmuck 0:8f0d0ae0a077 891
dudmuck 1:53c30224eda8 892 isr_printf("err%d=%u-%u ", BeaconCtx.BeaconRxTimerError_us, ThisBeaconRx_us, BeaconCtx.LastBeaconRx_us);
dudmuck 1:53c30224eda8 893 isr_printf(" rx-before-tx:%d ", BeaconCtx.rx_precession_us);
dudmuck 0:8f0d0ae0a077 894 BeaconCtx.LastBeaconRx_us = ThisBeaconRx_us;
dudmuck 0:8f0d0ae0a077 895 BeaconCtx.LastBeaconStart_us = BeaconCtx.LastBeaconRx_us;
dudmuck 0:8f0d0ae0a077 896
dudmuck 0:8f0d0ae0a077 897 if (BeaconCtx.state == BEACON_STATE_LOCKED_) {
dudmuck 0:8f0d0ae0a077 898 if (compensate_precession) {
dudmuck 0:8f0d0ae0a077 899 compensation = BeaconCtx.rx_precession_us - TARGET_PRECESSION_US + BeaconCtx.BeaconRxTimerError_us;
dudmuck 1:53c30224eda8 900 isr_printf(" comp%ld", compensation);
dudmuck 0:8f0d0ae0a077 901 }
dudmuck 0:8f0d0ae0a077 902 }
dudmuck 0:8f0d0ae0a077 903
dudmuck 1:53c30224eda8 904 isr_printf("\r\n");
dudmuck 0:8f0d0ae0a077 905
dudmuck 0:8f0d0ae0a077 906 BeaconCtx.next_beacon_expected_us = BEACON_INTERVAL_us + compensation;
dudmuck 0:8f0d0ae0a077 907 unsigned now_us = lp_timer.read_us();
dudmuck 0:8f0d0ae0a077 908 unsigned us_since_rx_setup = now_us - BeaconCtx.RxBeaconSetupAt_us;
dudmuck 0:8f0d0ae0a077 909 BeaconCtx.timeout.attach_us(&OnRxBeaconSetup, BeaconCtx.next_beacon_expected_us - us_since_rx_setup);
dudmuck 0:8f0d0ae0a077 910
dudmuck 0:8f0d0ae0a077 911 if (BeaconCtx.num_missed > 0) {
dudmuck 0:8f0d0ae0a077 912 /* restore rx symbol timeout */
dudmuck 0:8f0d0ae0a077 913 set_beacon_symbol_timeout(BEACON_RX_TIMEOUT_LOCKED);
dudmuck 0:8f0d0ae0a077 914 }
dudmuck 0:8f0d0ae0a077 915
dudmuck 0:8f0d0ae0a077 916 BeaconCtx.num_missed = 0;
dudmuck 0:8f0d0ae0a077 917 BeaconCtx.have_beacon = true;
dudmuck 0:8f0d0ae0a077 918
dudmuck 0:8f0d0ae0a077 919 MlmeIndication.MlmeIndication = MLME_BEACON;
dudmuck 0:8f0d0ae0a077 920 MlmeIndication.Status = LORAMAC_EVENT_INFO_STATUS_BEACON_LOCKED;
dudmuck 0:8f0d0ae0a077 921 LoRaMacPrimitives->MacMlmeIndication( &MlmeIndication );
dudmuck 0:8f0d0ae0a077 922 //LoRaMacFlags.Bits.MlmeInd = 1;
dudmuck 0:8f0d0ae0a077 923
dudmuck 0:8f0d0ae0a077 924 /* check beacon payload */
dudmuck 0:8f0d0ae0a077 925 uint16_t calc_crc = beacon_crc(payload, 4);
dudmuck 0:8f0d0ae0a077 926 uint16_t rx_crc = payload[4];
dudmuck 0:8f0d0ae0a077 927 rx_crc |= payload[5] << 8;
dudmuck 0:8f0d0ae0a077 928 if (rx_crc == calc_crc) {
dudmuck 0:8f0d0ae0a077 929 unsigned int rx = payload[0];
dudmuck 0:8f0d0ae0a077 930 rx |= payload[1] << 8;
dudmuck 0:8f0d0ae0a077 931 rx |= payload[2] << 16;
dudmuck 0:8f0d0ae0a077 932 rx |= payload[3] << 24;
dudmuck 0:8f0d0ae0a077 933 if (rx != 0)
dudmuck 1:53c30224eda8 934 isr_printf("beacon payload:%08x\r\n", rx);
dudmuck 0:8f0d0ae0a077 935 } else
dudmuck 1:53c30224eda8 936 isr_printf("calc_crc:%04x rx_crc:%04x\r\n", calc_crc, rx_crc);
dudmuck 0:8f0d0ae0a077 937 }
dudmuck 0:8f0d0ae0a077 938
dudmuck 0:8f0d0ae0a077 939 float get_symbol_period(uint8_t bw, uint8_t sf)
dudmuck 0:8f0d0ae0a077 940 {
dudmuck 0:8f0d0ae0a077 941 //bw:, // 0=125kHz, 1=250kHz, 2=500KHz
dudmuck 0:8f0d0ae0a077 942 float hz;
dudmuck 0:8f0d0ae0a077 943 switch( bw )
dudmuck 0:8f0d0ae0a077 944 {
dudmuck 0:8f0d0ae0a077 945 //case 0: // 7.8 kHz
dudmuck 0:8f0d0ae0a077 946 // bw = 78e2;
dudmuck 0:8f0d0ae0a077 947 // break;
dudmuck 0:8f0d0ae0a077 948 //case 1: // 10.4 kHz
dudmuck 0:8f0d0ae0a077 949 // bw = 104e2;
dudmuck 0:8f0d0ae0a077 950 // break;
dudmuck 0:8f0d0ae0a077 951 //case 2: // 15.6 kHz
dudmuck 0:8f0d0ae0a077 952 // bw = 156e2;
dudmuck 0:8f0d0ae0a077 953 // break;
dudmuck 0:8f0d0ae0a077 954 //case 3: // 20.8 kHz
dudmuck 0:8f0d0ae0a077 955 // bw = 208e2;
dudmuck 0:8f0d0ae0a077 956 // break;
dudmuck 0:8f0d0ae0a077 957 //case 4: // 31.2 kHz
dudmuck 0:8f0d0ae0a077 958 // bw = 312e2;
dudmuck 0:8f0d0ae0a077 959 // break;
dudmuck 0:8f0d0ae0a077 960 //case 5: // 41.4 kHz
dudmuck 0:8f0d0ae0a077 961 // bw = 414e2;
dudmuck 0:8f0d0ae0a077 962 // break;
dudmuck 0:8f0d0ae0a077 963 //case 6: // 62.5 kHz
dudmuck 0:8f0d0ae0a077 964 // bw = 625e2;
dudmuck 0:8f0d0ae0a077 965 // break;
dudmuck 0:8f0d0ae0a077 966 case 0: // 125 kHz
dudmuck 0:8f0d0ae0a077 967 hz = 125e3;
dudmuck 0:8f0d0ae0a077 968 break;
dudmuck 0:8f0d0ae0a077 969 case 1: // 250 kHz
dudmuck 0:8f0d0ae0a077 970 hz = 250e3;
dudmuck 0:8f0d0ae0a077 971 break;
dudmuck 0:8f0d0ae0a077 972 case 2: // 500 kHz
dudmuck 0:8f0d0ae0a077 973 hz = 500e3;
dudmuck 0:8f0d0ae0a077 974 break;
dudmuck 0:8f0d0ae0a077 975 default:
dudmuck 0:8f0d0ae0a077 976 return 0;
dudmuck 0:8f0d0ae0a077 977 }
dudmuck 0:8f0d0ae0a077 978
dudmuck 0:8f0d0ae0a077 979 // return symbol period in seconds
dudmuck 0:8f0d0ae0a077 980 return (1 << sf) / hz;
dudmuck 0:8f0d0ae0a077 981 }
dudmuck 0:8f0d0ae0a077 982
dudmuck 0:8f0d0ae0a077 983 static uint32_t GetRxBandwidth( int8_t datarate )
dudmuck 0:8f0d0ae0a077 984 {
dudmuck 0:8f0d0ae0a077 985 return 2; /* always 500KHz */
dudmuck 0:8f0d0ae0a077 986 }
dudmuck 0:8f0d0ae0a077 987
dudmuck 0:8f0d0ae0a077 988 static void OnRadioRxDone(unsigned rx_us, uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
dudmuck 0:8f0d0ae0a077 989 {
dudmuck 0:8f0d0ae0a077 990 LoRaMacHeader_t macHdr;
dudmuck 0:8f0d0ae0a077 991 LoRaMacFrameCtrl_t fCtrl;
dudmuck 0:8f0d0ae0a077 992 bool skipIndication = false;
dudmuck 0:8f0d0ae0a077 993
dudmuck 0:8f0d0ae0a077 994 uint8_t pktHeaderLen = 0;
dudmuck 0:8f0d0ae0a077 995 uint32_t address = 0;
dudmuck 0:8f0d0ae0a077 996 uint8_t appPayloadStartIndex = 0;
dudmuck 0:8f0d0ae0a077 997 uint8_t port = 0xFF;
dudmuck 0:8f0d0ae0a077 998 uint8_t frameLen = 0;
dudmuck 0:8f0d0ae0a077 999 uint32_t mic = 0;
dudmuck 0:8f0d0ae0a077 1000 uint32_t micRx = 0;
dudmuck 0:8f0d0ae0a077 1001
dudmuck 0:8f0d0ae0a077 1002 uint16_t sequenceCounter = 0;
dudmuck 0:8f0d0ae0a077 1003 uint16_t sequenceCounterPrev = 0;
dudmuck 0:8f0d0ae0a077 1004 uint16_t sequenceCounterDiff = 0;
dudmuck 0:8f0d0ae0a077 1005 uint32_t downLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1006
dudmuck 0:8f0d0ae0a077 1007 MulticastParams_t *curMulticastParams = NULL;
dudmuck 0:8f0d0ae0a077 1008 uint8_t *nwkSKey = LoRaMacNwkSKey;
dudmuck 0:8f0d0ae0a077 1009 uint8_t *appSKey = LoRaMacAppSKey;
dudmuck 0:8f0d0ae0a077 1010
dudmuck 0:8f0d0ae0a077 1011 uint8_t multicast = 0;
dudmuck 0:8f0d0ae0a077 1012
dudmuck 0:8f0d0ae0a077 1013 bool isMicOk = false;
dudmuck 0:8f0d0ae0a077 1014
dudmuck 0:8f0d0ae0a077 1015 McpsConfirm.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1016 McpsIndication.Rssi = rssi;
dudmuck 0:8f0d0ae0a077 1017 McpsIndication.Snr = snr;
dudmuck 0:8f0d0ae0a077 1018 McpsIndication.Port = 0;
dudmuck 0:8f0d0ae0a077 1019 McpsIndication.Multicast = 0;
dudmuck 0:8f0d0ae0a077 1020 McpsIndication.FramePending = 0;
dudmuck 0:8f0d0ae0a077 1021 McpsIndication.Buffer = NULL;
dudmuck 0:8f0d0ae0a077 1022 McpsIndication.BufferSize = 0;
dudmuck 0:8f0d0ae0a077 1023 McpsIndication.RxData = false;
dudmuck 0:8f0d0ae0a077 1024 McpsIndication.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1025 McpsIndication.DownLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1026 McpsIndication.McpsIndication = MCPS_UNCONFIRMED;
dudmuck 0:8f0d0ae0a077 1027
dudmuck 0:8f0d0ae0a077 1028 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 1029
dudmuck 0:8f0d0ae0a077 1030 if (expecting_beacon) {
dudmuck 0:8f0d0ae0a077 1031 rx_beacon(rx_us, payload, size);
dudmuck 0:8f0d0ae0a077 1032 expecting_beacon = false;
dudmuck 0:8f0d0ae0a077 1033 return;
dudmuck 0:8f0d0ae0a077 1034 }
dudmuck 0:8f0d0ae0a077 1035
dudmuck 0:8f0d0ae0a077 1036 macHdr.Value = payload[pktHeaderLen++];
dudmuck 0:8f0d0ae0a077 1037
dudmuck 0:8f0d0ae0a077 1038 switch( macHdr.Bits.MType )
dudmuck 0:8f0d0ae0a077 1039 {
dudmuck 0:8f0d0ae0a077 1040 case FRAME_TYPE_JOIN_ACCEPT:
dudmuck 0:8f0d0ae0a077 1041 if( IsLoRaMacNetworkJoined == true )
dudmuck 0:8f0d0ae0a077 1042 {
dudmuck 2:f2d9aa163652 1043 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_JOIN_ACCEPT;
dudmuck 0:8f0d0ae0a077 1044 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1045 return;
dudmuck 0:8f0d0ae0a077 1046 }
dudmuck 0:8f0d0ae0a077 1047 LoRaMacJoinDecrypt( payload + 1, size - 1, LoRaMacAppKey, LoRaMacRxPayload + 1 );
dudmuck 0:8f0d0ae0a077 1048
dudmuck 0:8f0d0ae0a077 1049 LoRaMacRxPayload[0] = macHdr.Value;
dudmuck 0:8f0d0ae0a077 1050
dudmuck 0:8f0d0ae0a077 1051 LoRaMacJoinComputeMic( LoRaMacRxPayload, size - LORAMAC_MFR_LEN, LoRaMacAppKey, &mic );
dudmuck 0:8f0d0ae0a077 1052
dudmuck 0:8f0d0ae0a077 1053 micRx |= ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN];
dudmuck 0:8f0d0ae0a077 1054 micRx |= ( ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN + 1] << 8 );
dudmuck 0:8f0d0ae0a077 1055 micRx |= ( ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN + 2] << 16 );
dudmuck 0:8f0d0ae0a077 1056 micRx |= ( ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN + 3] << 24 );
dudmuck 0:8f0d0ae0a077 1057
dudmuck 0:8f0d0ae0a077 1058 if( micRx == mic )
dudmuck 0:8f0d0ae0a077 1059 {
dudmuck 0:8f0d0ae0a077 1060 LoRaMacJoinComputeSKeys( LoRaMacAppKey, LoRaMacRxPayload + 1, LoRaMacDevNonce, LoRaMacNwkSKey, LoRaMacAppSKey );
dudmuck 1:53c30224eda8 1061 isr_printf("decr%u:", size);
dudmuck 0:8f0d0ae0a077 1062 for (mic = 0; mic < size; mic++)
dudmuck 1:53c30224eda8 1063 isr_printf("%02x ", LoRaMacRxPayload[mic]);
dudmuck 1:53c30224eda8 1064 isr_printf("\r\n");
dudmuck 0:8f0d0ae0a077 1065
dudmuck 0:8f0d0ae0a077 1066 LoRaMacNetID = ( uint32_t )LoRaMacRxPayload[4];
dudmuck 0:8f0d0ae0a077 1067 LoRaMacNetID |= ( ( uint32_t )LoRaMacRxPayload[5] << 8 );
dudmuck 0:8f0d0ae0a077 1068 LoRaMacNetID |= ( ( uint32_t )LoRaMacRxPayload[6] << 16 );
dudmuck 0:8f0d0ae0a077 1069
dudmuck 0:8f0d0ae0a077 1070 LoRaMacDevAddr = ( uint32_t )LoRaMacRxPayload[7];
dudmuck 0:8f0d0ae0a077 1071 LoRaMacDevAddr |= ( ( uint32_t )LoRaMacRxPayload[8] << 8 );
dudmuck 0:8f0d0ae0a077 1072 LoRaMacDevAddr |= ( ( uint32_t )LoRaMacRxPayload[9] << 16 );
dudmuck 0:8f0d0ae0a077 1073 LoRaMacDevAddr |= ( ( uint32_t )LoRaMacRxPayload[10] << 24 );
dudmuck 0:8f0d0ae0a077 1074
dudmuck 0:8f0d0ae0a077 1075 // DLSettings
dudmuck 0:8f0d0ae0a077 1076 LoRaMacParams.Rx1DrOffset = ( LoRaMacRxPayload[11] >> 4 ) & 0x07;
dudmuck 0:8f0d0ae0a077 1077
dudmuck 0:8f0d0ae0a077 1078 LoRaMacParams.ReceiveDelay_us = ( LoRaMacRxPayload[12] & 0x0F );
dudmuck 0:8f0d0ae0a077 1079 if( LoRaMacParams.ReceiveDelay_us == 0 )
dudmuck 0:8f0d0ae0a077 1080 LoRaMacParams.ReceiveDelay_us = RECEIVE_DELAY_us;
dudmuck 0:8f0d0ae0a077 1081 else
dudmuck 0:8f0d0ae0a077 1082 LoRaMacParams.ReceiveDelay_us *= 10;
dudmuck 0:8f0d0ae0a077 1083
dudmuck 0:8f0d0ae0a077 1084 uint16_t beaconTimingDelay = LoRaMacRxPayload[13] & 0xff;
dudmuck 0:8f0d0ae0a077 1085 beaconTimingDelay |= LoRaMacRxPayload[14] << 8;
dudmuck 0:8f0d0ae0a077 1086
dudmuck 1:53c30224eda8 1087 isr_printf("%lx slots:%x (rxdelay %lu)", LoRaMacDevAddr, beaconTimingDelay, LoRaMacParams.ReceiveDelay_us);
dudmuck 0:8f0d0ae0a077 1088 // how long from tx-done of join-request is beacon going to occur at
dudmuck 0:8f0d0ae0a077 1089 uint32_t us_to_beacon = ( PING_SLOT_RESOLUTION_us * beaconTimingDelay );
dudmuck 0:8f0d0ae0a077 1090 // get time elapsed since last tx-done
dudmuck 0:8f0d0ae0a077 1091 unsigned int now_us = lp_timer.read_us();
dudmuck 0:8f0d0ae0a077 1092 unsigned int us_since_TxDone = now_us - TxDone_us;
dudmuck 0:8f0d0ae0a077 1093 BeaconCtx.timeout.attach_us(&OnRxBeaconSetup, us_to_beacon - us_since_TxDone);
dudmuck 0:8f0d0ae0a077 1094 BeaconCtx.next_beacon_expected_us = now_us + us_to_beacon;
dudmuck 1:53c30224eda8 1095 isr_printf("us_to_beacon:%lu, since_tx_done:%u\r\n", us_to_beacon, us_since_TxDone);
dudmuck 0:8f0d0ae0a077 1096 BeaconCtx.have_beacon = false;
dudmuck 0:8f0d0ae0a077 1097 BeaconCtx.state = BEACON_STATE_FIRST_ACQ;
dudmuck 0:8f0d0ae0a077 1098 BeaconCtx.num_missed = 0;
dudmuck 0:8f0d0ae0a077 1099 BeaconCtx.rx_precession_us = 0;
dudmuck 0:8f0d0ae0a077 1100 BeaconCtx.BeaconRxTimerError_us = -PPM_100_BEACON_INTERVAL;
dudmuck 0:8f0d0ae0a077 1101 BeaconCtx.symbol_period_secs = get_symbol_period(GetRxBandwidth(LORAMAC_DEFAULT_DATARATE), Datarates[LORAMAC_DEFAULT_DATARATE]);
dudmuck 0:8f0d0ae0a077 1102 // N-ms: slot resolution + minimum for preamble detector + 100ppm fast crystal rxing 12ms early
dudmuck 0:8f0d0ae0a077 1103 BeaconCtx.Precess_symbols = TARGET_PRECESSION_US * (BeaconCtx.symbol_period_secs);
dudmuck 0:8f0d0ae0a077 1104 BeaconCtx.SymbolTimeout_sec = 0.050 + (BEACON_MIN_SYMBOL_TIMEOUT * BeaconCtx.symbol_period_secs);
dudmuck 0:8f0d0ae0a077 1105 BeaconCtx.SymbolTimeout = BeaconCtx.SymbolTimeout_sec / BeaconCtx.symbol_period_secs;
dudmuck 0:8f0d0ae0a077 1106
dudmuck 1:53c30224eda8 1107 isr_printf("sp:%f sto:%d\r\n", BeaconCtx.symbol_period_secs, BeaconCtx.SymbolTimeout);
dudmuck 0:8f0d0ae0a077 1108 BeaconCtx.tx_slot_offset = LoRaMacRxPayload[15];
dudmuck 0:8f0d0ae0a077 1109 BeaconCtx.tx_slot_offset |= LoRaMacRxPayload[16] << 8;
dudmuck 0:8f0d0ae0a077 1110 BeaconCtx.periodicity_slots = LoRaMacRxPayload[17];
dudmuck 0:8f0d0ae0a077 1111 BeaconCtx.periodicity_slots |= LoRaMacRxPayload[18] << 8;
dudmuck 1:53c30224eda8 1112 isr_printf("tso:%u, PS:%u\r\n", BeaconCtx.tx_slot_offset, BeaconCtx.periodicity_slots);
dudmuck 0:8f0d0ae0a077 1113
dudmuck 0:8f0d0ae0a077 1114 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1115 IsLoRaMacNetworkJoined = true;
dudmuck 0:8f0d0ae0a077 1116 LoRaMacParams.ChannelsDatarate_fixed = LoRaMacParamsDefaults.ChannelsDatarate_fixed;
dudmuck 0:8f0d0ae0a077 1117 }
dudmuck 0:8f0d0ae0a077 1118 else
dudmuck 0:8f0d0ae0a077 1119 {
dudmuck 0:8f0d0ae0a077 1120 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_JOIN_FAIL;
dudmuck 1:53c30224eda8 1121 isr_printf("join-mic-fail\r\n");
dudmuck 0:8f0d0ae0a077 1122 JoinRequestTrials = MaxJoinRequestTrials; // stop trying
dudmuck 0:8f0d0ae0a077 1123 }
dudmuck 0:8f0d0ae0a077 1124 break;
dudmuck 0:8f0d0ae0a077 1125 case FRAME_TYPE_DATA_CONFIRMED_DOWN:
dudmuck 0:8f0d0ae0a077 1126 case FRAME_TYPE_DATA_UNCONFIRMED_DOWN:
dudmuck 0:8f0d0ae0a077 1127 {
dudmuck 0:8f0d0ae0a077 1128 address = payload[pktHeaderLen++];
dudmuck 0:8f0d0ae0a077 1129 address |= ( (uint32_t)payload[pktHeaderLen++] << 8 );
dudmuck 0:8f0d0ae0a077 1130 address |= ( (uint32_t)payload[pktHeaderLen++] << 16 );
dudmuck 0:8f0d0ae0a077 1131 address |= ( (uint32_t)payload[pktHeaderLen++] << 24 );
dudmuck 0:8f0d0ae0a077 1132
dudmuck 0:8f0d0ae0a077 1133 if( address != LoRaMacDevAddr )
dudmuck 0:8f0d0ae0a077 1134 {
dudmuck 0:8f0d0ae0a077 1135 curMulticastParams = MulticastChannels;
dudmuck 0:8f0d0ae0a077 1136 while( curMulticastParams != NULL )
dudmuck 0:8f0d0ae0a077 1137 {
dudmuck 0:8f0d0ae0a077 1138 if( address == curMulticastParams->Address )
dudmuck 0:8f0d0ae0a077 1139 {
dudmuck 0:8f0d0ae0a077 1140 multicast = 1;
dudmuck 0:8f0d0ae0a077 1141 nwkSKey = curMulticastParams->NwkSKey;
dudmuck 0:8f0d0ae0a077 1142 appSKey = curMulticastParams->AppSKey;
dudmuck 0:8f0d0ae0a077 1143 downLinkCounter = curMulticastParams->DownLinkCounter;
dudmuck 0:8f0d0ae0a077 1144 break;
dudmuck 0:8f0d0ae0a077 1145 }
dudmuck 0:8f0d0ae0a077 1146 curMulticastParams = curMulticastParams->Next;
dudmuck 0:8f0d0ae0a077 1147 }
dudmuck 0:8f0d0ae0a077 1148 if( multicast == 0 )
dudmuck 0:8f0d0ae0a077 1149 {
dudmuck 0:8f0d0ae0a077 1150 // We are not the destination of this frame.
dudmuck 0:8f0d0ae0a077 1151 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_ADDRESS_FAIL;
dudmuck 0:8f0d0ae0a077 1152 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1153 return;
dudmuck 0:8f0d0ae0a077 1154 }
dudmuck 0:8f0d0ae0a077 1155 }
dudmuck 0:8f0d0ae0a077 1156 else
dudmuck 0:8f0d0ae0a077 1157 {
dudmuck 0:8f0d0ae0a077 1158 multicast = 0;
dudmuck 0:8f0d0ae0a077 1159 nwkSKey = LoRaMacNwkSKey;
dudmuck 0:8f0d0ae0a077 1160 appSKey = LoRaMacAppSKey;
dudmuck 0:8f0d0ae0a077 1161 downLinkCounter = DownLinkCounter;
dudmuck 0:8f0d0ae0a077 1162 }
dudmuck 0:8f0d0ae0a077 1163
dudmuck 0:8f0d0ae0a077 1164 fCtrl.Value = payload[pktHeaderLen++];
dudmuck 0:8f0d0ae0a077 1165
dudmuck 0:8f0d0ae0a077 1166 sequenceCounter = ( uint16_t )payload[pktHeaderLen++];
dudmuck 0:8f0d0ae0a077 1167 sequenceCounter |= ( uint16_t )payload[pktHeaderLen++] << 8;
dudmuck 0:8f0d0ae0a077 1168
dudmuck 0:8f0d0ae0a077 1169 appPayloadStartIndex = 8 + fCtrl.Bits.FOptsLen;
dudmuck 0:8f0d0ae0a077 1170
dudmuck 0:8f0d0ae0a077 1171 micRx |= ( uint32_t )payload[size - LORAMAC_MFR_LEN];
dudmuck 0:8f0d0ae0a077 1172 micRx |= ( ( uint32_t )payload[size - LORAMAC_MFR_LEN + 1] << 8 );
dudmuck 0:8f0d0ae0a077 1173 micRx |= ( ( uint32_t )payload[size - LORAMAC_MFR_LEN + 2] << 16 );
dudmuck 0:8f0d0ae0a077 1174 micRx |= ( ( uint32_t )payload[size - LORAMAC_MFR_LEN + 3] << 24 );
dudmuck 0:8f0d0ae0a077 1175
dudmuck 0:8f0d0ae0a077 1176 sequenceCounterPrev = ( uint16_t )downLinkCounter;
dudmuck 0:8f0d0ae0a077 1177 sequenceCounterDiff = ( sequenceCounter - sequenceCounterPrev );
dudmuck 0:8f0d0ae0a077 1178
dudmuck 0:8f0d0ae0a077 1179 if( sequenceCounterDiff < ( 1 << 15 ) )
dudmuck 0:8f0d0ae0a077 1180 {
dudmuck 0:8f0d0ae0a077 1181 downLinkCounter += sequenceCounterDiff;
dudmuck 0:8f0d0ae0a077 1182 LoRaMacComputeMic( payload, size - LORAMAC_MFR_LEN, nwkSKey, address, DOWN_LINK, downLinkCounter, &mic );
dudmuck 0:8f0d0ae0a077 1183 if( micRx == mic )
dudmuck 0:8f0d0ae0a077 1184 {
dudmuck 0:8f0d0ae0a077 1185 isMicOk = true;
dudmuck 0:8f0d0ae0a077 1186 }
dudmuck 0:8f0d0ae0a077 1187 }
dudmuck 0:8f0d0ae0a077 1188 else
dudmuck 0:8f0d0ae0a077 1189 {
dudmuck 0:8f0d0ae0a077 1190 // check for sequence roll-over
dudmuck 0:8f0d0ae0a077 1191 uint32_t downLinkCounterTmp = downLinkCounter + 0x10000 + ( int16_t )sequenceCounterDiff;
dudmuck 0:8f0d0ae0a077 1192 LoRaMacComputeMic( payload, size - LORAMAC_MFR_LEN, nwkSKey, address, DOWN_LINK, downLinkCounterTmp, &mic );
dudmuck 0:8f0d0ae0a077 1193 if( micRx == mic )
dudmuck 0:8f0d0ae0a077 1194 {
dudmuck 0:8f0d0ae0a077 1195 isMicOk = true;
dudmuck 0:8f0d0ae0a077 1196 downLinkCounter = downLinkCounterTmp;
dudmuck 0:8f0d0ae0a077 1197 }
dudmuck 0:8f0d0ae0a077 1198 }
dudmuck 0:8f0d0ae0a077 1199
dudmuck 0:8f0d0ae0a077 1200 // Check for a the maximum allowed counter difference
dudmuck 0:8f0d0ae0a077 1201 if( sequenceCounterDiff >= MAX_FCNT_GAP )
dudmuck 0:8f0d0ae0a077 1202 {
dudmuck 0:8f0d0ae0a077 1203 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_DOWNLINK_TOO_MANY_FRAMES_LOSS;
dudmuck 0:8f0d0ae0a077 1204 McpsIndication.DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1205 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1206 return;
dudmuck 0:8f0d0ae0a077 1207 }
dudmuck 0:8f0d0ae0a077 1208
dudmuck 0:8f0d0ae0a077 1209 if( isMicOk == true )
dudmuck 0:8f0d0ae0a077 1210 {
dudmuck 0:8f0d0ae0a077 1211 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1212 McpsIndication.Multicast = multicast;
dudmuck 0:8f0d0ae0a077 1213 McpsIndication.FramePending = fCtrl.Bits.FPending;
dudmuck 0:8f0d0ae0a077 1214 McpsIndication.Buffer = NULL;
dudmuck 0:8f0d0ae0a077 1215 McpsIndication.BufferSize = 0;
dudmuck 0:8f0d0ae0a077 1216 McpsIndication.DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1217
dudmuck 0:8f0d0ae0a077 1218 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1219
dudmuck 0:8f0d0ae0a077 1220 MacCommandsBufferToRepeatIndex = 0;
dudmuck 0:8f0d0ae0a077 1221
dudmuck 0:8f0d0ae0a077 1222 // Update 32 bits downlink counter
dudmuck 0:8f0d0ae0a077 1223 if( multicast == 1 )
dudmuck 0:8f0d0ae0a077 1224 {
dudmuck 0:8f0d0ae0a077 1225 McpsIndication.McpsIndication = MCPS_MULTICAST;
dudmuck 0:8f0d0ae0a077 1226
dudmuck 0:8f0d0ae0a077 1227 if( ( curMulticastParams->DownLinkCounter == downLinkCounter ) &&
dudmuck 0:8f0d0ae0a077 1228 ( curMulticastParams->DownLinkCounter != 0 ) )
dudmuck 0:8f0d0ae0a077 1229 {
dudmuck 0:8f0d0ae0a077 1230 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_DOWNLINK_REPEATED;
dudmuck 0:8f0d0ae0a077 1231 McpsIndication.DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1232 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1233 return;
dudmuck 0:8f0d0ae0a077 1234 }
dudmuck 0:8f0d0ae0a077 1235 curMulticastParams->DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1236 }
dudmuck 0:8f0d0ae0a077 1237 else
dudmuck 0:8f0d0ae0a077 1238 {
dudmuck 0:8f0d0ae0a077 1239 if( macHdr.Bits.MType == FRAME_TYPE_DATA_CONFIRMED_DOWN )
dudmuck 0:8f0d0ae0a077 1240 {
dudmuck 0:8f0d0ae0a077 1241 SrvAckRequested = true;
dudmuck 0:8f0d0ae0a077 1242 McpsIndication.McpsIndication = MCPS_CONFIRMED;
dudmuck 0:8f0d0ae0a077 1243
dudmuck 0:8f0d0ae0a077 1244 if( ( DownLinkCounter == downLinkCounter ) &&
dudmuck 0:8f0d0ae0a077 1245 ( DownLinkCounter != 0 ) )
dudmuck 0:8f0d0ae0a077 1246 {
dudmuck 0:8f0d0ae0a077 1247 // Duplicated confirmed downlink. Skip indication.
dudmuck 0:8f0d0ae0a077 1248 // In this case, the MAC layer shall accept the MAC commands
dudmuck 0:8f0d0ae0a077 1249 // which are included in the downlink retransmission.
dudmuck 0:8f0d0ae0a077 1250 // It should not provide the same frame to the application
dudmuck 0:8f0d0ae0a077 1251 // layer again.
dudmuck 0:8f0d0ae0a077 1252 skipIndication = true;
dudmuck 0:8f0d0ae0a077 1253 }
dudmuck 0:8f0d0ae0a077 1254 }
dudmuck 0:8f0d0ae0a077 1255 else
dudmuck 0:8f0d0ae0a077 1256 {
dudmuck 0:8f0d0ae0a077 1257 SrvAckRequested = false;
dudmuck 0:8f0d0ae0a077 1258 McpsIndication.McpsIndication = MCPS_UNCONFIRMED;
dudmuck 0:8f0d0ae0a077 1259
dudmuck 0:8f0d0ae0a077 1260 if( ( DownLinkCounter == downLinkCounter ) &&
dudmuck 0:8f0d0ae0a077 1261 ( DownLinkCounter != 0 ) )
dudmuck 0:8f0d0ae0a077 1262 {
dudmuck 0:8f0d0ae0a077 1263 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_DOWNLINK_REPEATED;
dudmuck 0:8f0d0ae0a077 1264 McpsIndication.DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1265 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1266 return;
dudmuck 0:8f0d0ae0a077 1267 }
dudmuck 0:8f0d0ae0a077 1268 }
dudmuck 0:8f0d0ae0a077 1269 DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1270 }
dudmuck 0:8f0d0ae0a077 1271
dudmuck 0:8f0d0ae0a077 1272 // This must be done before parsing the payload and the MAC commands.
dudmuck 0:8f0d0ae0a077 1273 // We need to reset the MacCommandsBufferIndex here, since we need
dudmuck 0:8f0d0ae0a077 1274 // to take retransmissions and repititions into account. Error cases
dudmuck 0:8f0d0ae0a077 1275 // will be handled in function OnMacStateCheckTimerEvent.
dudmuck 0:8f0d0ae0a077 1276 if( McpsConfirm.McpsRequest == MCPS_CONFIRMED )
dudmuck 0:8f0d0ae0a077 1277 {
dudmuck 0:8f0d0ae0a077 1278 if( fCtrl.Bits.Ack == 1 )
dudmuck 0:8f0d0ae0a077 1279 {// Reset MacCommandsBufferIndex when we have received an ACK.
dudmuck 0:8f0d0ae0a077 1280 MacCommandsBufferIndex = 0;
dudmuck 0:8f0d0ae0a077 1281 }
dudmuck 0:8f0d0ae0a077 1282 }
dudmuck 0:8f0d0ae0a077 1283 else
dudmuck 0:8f0d0ae0a077 1284 {// Reset the variable if we have received any valid frame.
dudmuck 0:8f0d0ae0a077 1285 MacCommandsBufferIndex = 0;
dudmuck 0:8f0d0ae0a077 1286 }
dudmuck 0:8f0d0ae0a077 1287
dudmuck 0:8f0d0ae0a077 1288 // Process payload and MAC commands
dudmuck 0:8f0d0ae0a077 1289 if( ( ( size - 4 ) - appPayloadStartIndex ) > 0 )
dudmuck 0:8f0d0ae0a077 1290 {
dudmuck 0:8f0d0ae0a077 1291 port = payload[appPayloadStartIndex++];
dudmuck 0:8f0d0ae0a077 1292 frameLen = ( size - 4 ) - appPayloadStartIndex;
dudmuck 0:8f0d0ae0a077 1293
dudmuck 0:8f0d0ae0a077 1294 McpsIndication.Port = port;
dudmuck 0:8f0d0ae0a077 1295
dudmuck 0:8f0d0ae0a077 1296 if( port == 0 )
dudmuck 0:8f0d0ae0a077 1297 {
dudmuck 0:8f0d0ae0a077 1298 // Only allow frames which do not have fOpts
dudmuck 0:8f0d0ae0a077 1299 if( fCtrl.Bits.FOptsLen == 0 )
dudmuck 0:8f0d0ae0a077 1300 {
dudmuck 0:8f0d0ae0a077 1301 LoRaMacPayloadDecrypt( payload + appPayloadStartIndex,
dudmuck 0:8f0d0ae0a077 1302 frameLen,
dudmuck 0:8f0d0ae0a077 1303 nwkSKey,
dudmuck 0:8f0d0ae0a077 1304 address,
dudmuck 0:8f0d0ae0a077 1305 DOWN_LINK,
dudmuck 0:8f0d0ae0a077 1306 downLinkCounter,
dudmuck 0:8f0d0ae0a077 1307 LoRaMacRxPayload );
dudmuck 0:8f0d0ae0a077 1308
dudmuck 0:8f0d0ae0a077 1309 // Decode frame payload MAC commands
dudmuck 0:8f0d0ae0a077 1310 ProcessMacCommands( LoRaMacRxPayload, 0, frameLen, snr );
dudmuck 0:8f0d0ae0a077 1311 }
dudmuck 0:8f0d0ae0a077 1312 else
dudmuck 0:8f0d0ae0a077 1313 {
dudmuck 0:8f0d0ae0a077 1314 skipIndication = true;
dudmuck 0:8f0d0ae0a077 1315 }
dudmuck 0:8f0d0ae0a077 1316 }
dudmuck 0:8f0d0ae0a077 1317 else
dudmuck 0:8f0d0ae0a077 1318 {
dudmuck 0:8f0d0ae0a077 1319 if( fCtrl.Bits.FOptsLen > 0 )
dudmuck 0:8f0d0ae0a077 1320 {
dudmuck 0:8f0d0ae0a077 1321 // Decode Options field MAC commands. Omit the fPort.
dudmuck 0:8f0d0ae0a077 1322 ProcessMacCommands( payload, 8, appPayloadStartIndex - 1, snr );
dudmuck 0:8f0d0ae0a077 1323 }
dudmuck 0:8f0d0ae0a077 1324
dudmuck 0:8f0d0ae0a077 1325 LoRaMacPayloadDecrypt( payload + appPayloadStartIndex,
dudmuck 0:8f0d0ae0a077 1326 frameLen,
dudmuck 0:8f0d0ae0a077 1327 appSKey,
dudmuck 0:8f0d0ae0a077 1328 address,
dudmuck 0:8f0d0ae0a077 1329 DOWN_LINK,
dudmuck 0:8f0d0ae0a077 1330 downLinkCounter,
dudmuck 0:8f0d0ae0a077 1331 LoRaMacRxPayload );
dudmuck 0:8f0d0ae0a077 1332
dudmuck 0:8f0d0ae0a077 1333 if( skipIndication == false )
dudmuck 0:8f0d0ae0a077 1334 {
dudmuck 0:8f0d0ae0a077 1335 McpsIndication.Buffer = LoRaMacRxPayload;
dudmuck 0:8f0d0ae0a077 1336 McpsIndication.BufferSize = frameLen;
dudmuck 0:8f0d0ae0a077 1337 McpsIndication.RxData = true;
dudmuck 0:8f0d0ae0a077 1338 }
dudmuck 0:8f0d0ae0a077 1339 }
dudmuck 0:8f0d0ae0a077 1340 }
dudmuck 0:8f0d0ae0a077 1341 else
dudmuck 0:8f0d0ae0a077 1342 {
dudmuck 0:8f0d0ae0a077 1343 if( fCtrl.Bits.FOptsLen > 0 )
dudmuck 0:8f0d0ae0a077 1344 {
dudmuck 0:8f0d0ae0a077 1345 // Decode Options field MAC commands
dudmuck 0:8f0d0ae0a077 1346 ProcessMacCommands( payload, 8, appPayloadStartIndex, snr );
dudmuck 0:8f0d0ae0a077 1347 }
dudmuck 0:8f0d0ae0a077 1348 }
dudmuck 0:8f0d0ae0a077 1349
dudmuck 0:8f0d0ae0a077 1350 if( skipIndication == false )
dudmuck 0:8f0d0ae0a077 1351 {
dudmuck 0:8f0d0ae0a077 1352 // Check if the frame is an acknowledgement
dudmuck 0:8f0d0ae0a077 1353 if( fCtrl.Bits.Ack == 1 )
dudmuck 0:8f0d0ae0a077 1354 {
dudmuck 0:8f0d0ae0a077 1355 McpsConfirm.AckReceived = true;
dudmuck 0:8f0d0ae0a077 1356 McpsIndication.AckReceived = true;
dudmuck 0:8f0d0ae0a077 1357
dudmuck 0:8f0d0ae0a077 1358 // Stop the AckTimeout timer as no more retransmissions
dudmuck 0:8f0d0ae0a077 1359 // are needed.
dudmuck 0:8f0d0ae0a077 1360 }
dudmuck 0:8f0d0ae0a077 1361 else
dudmuck 0:8f0d0ae0a077 1362 {
dudmuck 0:8f0d0ae0a077 1363 McpsConfirm.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1364 }
dudmuck 0:8f0d0ae0a077 1365 }
dudmuck 0:8f0d0ae0a077 1366 // Provide always an indication, skip the callback to the user application,
dudmuck 0:8f0d0ae0a077 1367 // in case of a confirmed downlink retransmission.
dudmuck 0:8f0d0ae0a077 1368 LoRaMacFlags.Bits.McpsInd = 1;
dudmuck 0:8f0d0ae0a077 1369 LoRaMacFlags.Bits.McpsIndSkip = skipIndication;
dudmuck 0:8f0d0ae0a077 1370 }
dudmuck 0:8f0d0ae0a077 1371 else
dudmuck 0:8f0d0ae0a077 1372 {
dudmuck 0:8f0d0ae0a077 1373 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_MIC_FAIL;
dudmuck 5:c108560af4c3 1374 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_MIC_FAIL;
dudmuck 0:8f0d0ae0a077 1375 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1376 return;
dudmuck 0:8f0d0ae0a077 1377 }
dudmuck 0:8f0d0ae0a077 1378 }
dudmuck 0:8f0d0ae0a077 1379 break;
dudmuck 0:8f0d0ae0a077 1380 case FRAME_TYPE_PROPRIETARY:
dudmuck 0:8f0d0ae0a077 1381 {
dudmuck 0:8f0d0ae0a077 1382 memcpy1( LoRaMacRxPayload, &payload[pktHeaderLen], size );
dudmuck 0:8f0d0ae0a077 1383
dudmuck 0:8f0d0ae0a077 1384 McpsIndication.McpsIndication = MCPS_PROPRIETARY;
dudmuck 0:8f0d0ae0a077 1385 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1386 McpsIndication.Buffer = LoRaMacRxPayload;
dudmuck 0:8f0d0ae0a077 1387 McpsIndication.BufferSize = size - pktHeaderLen;
dudmuck 0:8f0d0ae0a077 1388
dudmuck 0:8f0d0ae0a077 1389 LoRaMacFlags.Bits.McpsInd = 1;
dudmuck 0:8f0d0ae0a077 1390 break;
dudmuck 0:8f0d0ae0a077 1391 }
dudmuck 0:8f0d0ae0a077 1392 default:
dudmuck 2:f2d9aa163652 1393 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_RX_MTYPE;
dudmuck 5:c108560af4c3 1394 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_RX_MTYPE;
dudmuck 0:8f0d0ae0a077 1395 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1396 break;
dudmuck 0:8f0d0ae0a077 1397 }
dudmuck 0:8f0d0ae0a077 1398 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 1399
dudmuck 1:53c30224eda8 1400 /* run mac check quickly, but not immedately (for isr_printf) */
dudmuck 1:53c30224eda8 1401 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, 50000);
dudmuck 1:53c30224eda8 1402 } // ..OnRadioRxDone();
dudmuck 0:8f0d0ae0a077 1403
dudmuck 0:8f0d0ae0a077 1404 static void OnRadioTxTimeout( void )
dudmuck 0:8f0d0ae0a077 1405 {
dudmuck 0:8f0d0ae0a077 1406 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 1407
dudmuck 0:8f0d0ae0a077 1408 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 1409 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 1410 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 1411 }
dudmuck 0:8f0d0ae0a077 1412
dudmuck 0:8f0d0ae0a077 1413 static void OnRadioRxError( void )
dudmuck 0:8f0d0ae0a077 1414 {
dudmuck 0:8f0d0ae0a077 1415 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 1416
dudmuck 0:8f0d0ae0a077 1417 if( NodeAckRequested == true )
dudmuck 0:8f0d0ae0a077 1418 {
dudmuck 0:8f0d0ae0a077 1419 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_ERROR;
dudmuck 0:8f0d0ae0a077 1420 }
dudmuck 0:8f0d0ae0a077 1421 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_ERROR;
dudmuck 0:8f0d0ae0a077 1422
dudmuck 0:8f0d0ae0a077 1423 if ((lp_timer.read_us() - AggregatedLastTxDoneTime_us) >= RxWindowDelay_us )
dudmuck 0:8f0d0ae0a077 1424 {
dudmuck 0:8f0d0ae0a077 1425 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 1426 }
dudmuck 0:8f0d0ae0a077 1427 }
dudmuck 0:8f0d0ae0a077 1428
dudmuck 0:8f0d0ae0a077 1429 static void OnRadioRxTimeout( void )
dudmuck 0:8f0d0ae0a077 1430 {
dudmuck 0:8f0d0ae0a077 1431 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 1432
dudmuck 0:8f0d0ae0a077 1433 if (expecting_beacon) {
dudmuck 0:8f0d0ae0a077 1434 /* generate simulated last beacon start */
dudmuck 0:8f0d0ae0a077 1435 BeaconCtx.LastBeaconStart_us += BEACON_INTERVAL_us + BeaconCtx.BeaconRxTimerError_us;
dudmuck 0:8f0d0ae0a077 1436
dudmuck 0:8f0d0ae0a077 1437 BeaconCtx.next_beacon_expected_us = BEACON_INTERVAL_us;
dudmuck 0:8f0d0ae0a077 1438 BeaconCtx.num_missed++;
dudmuck 0:8f0d0ae0a077 1439 unsigned now_us = lp_timer.read_us();
dudmuck 0:8f0d0ae0a077 1440 if (BeaconCtx.state == BEACON_STATE_FIRST_ACQ) {
dudmuck 0:8f0d0ae0a077 1441 BeaconCtx.next_beacon_expected_us -= 1000000;
dudmuck 0:8f0d0ae0a077 1442 set_beacon_symbol_timeout(2.000);
dudmuck 0:8f0d0ae0a077 1443 } else {
dudmuck 0:8f0d0ae0a077 1444 BeaconCtx.next_beacon_expected_us += BeaconCtx.BeaconRxTimerError_us;
dudmuck 0:8f0d0ae0a077 1445 // for measurement resolution and temperature drift while missing beacons:
dudmuck 0:8f0d0ae0a077 1446 BeaconCtx.next_beacon_expected_us -= 3000;
dudmuck 0:8f0d0ae0a077 1447 set_beacon_symbol_timeout(BeaconCtx.SymbolTimeout_sec + 0.003);
dudmuck 0:8f0d0ae0a077 1448 }
dudmuck 0:8f0d0ae0a077 1449 unsigned us_since_rx_setup = now_us - BeaconCtx.RxBeaconSetupAt_us;
dudmuck 0:8f0d0ae0a077 1450 BeaconCtx.timeout.attach_us(&OnRxBeaconSetup, BeaconCtx.next_beacon_expected_us - us_since_rx_setup);
dudmuck 0:8f0d0ae0a077 1451
dudmuck 1:53c30224eda8 1452 isr_printf("beacon-rx-timeout %u %u next in %uus (%u)\r\n", BeaconCtx.num_missed, BeaconCtx.SymbolTimeout, BeaconCtx.next_beacon_expected_us, us_since_rx_setup);
dudmuck 0:8f0d0ae0a077 1453
dudmuck 0:8f0d0ae0a077 1454 MlmeIndication.MlmeIndication = MLME_BEACON;
dudmuck 0:8f0d0ae0a077 1455 MlmeIndication.Status = LORAMAC_EVENT_INFO_STATUS_BEACON_LOST;
dudmuck 0:8f0d0ae0a077 1456 LoRaMacPrimitives->MacMlmeIndication( &MlmeIndication );
dudmuck 0:8f0d0ae0a077 1457 //LoRaMacFlags.Bits.MlmeInd = 1;
dudmuck 0:8f0d0ae0a077 1458
dudmuck 0:8f0d0ae0a077 1459 expecting_beacon = false;
dudmuck 0:8f0d0ae0a077 1460 }
dudmuck 0:8f0d0ae0a077 1461
dudmuck 0:8f0d0ae0a077 1462 if( NodeAckRequested == true )
dudmuck 0:8f0d0ae0a077 1463 {
dudmuck 0:8f0d0ae0a077 1464 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 1465 }
dudmuck 0:8f0d0ae0a077 1466 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 1467 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 1468
dudmuck 1:53c30224eda8 1469 /* run mac check quickly, but not immedately (for isr_printf) */
dudmuck 1:53c30224eda8 1470 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, 50000);
dudmuck 1:53c30224eda8 1471 } // ..OnRadioRxTimeout();
dudmuck 0:8f0d0ae0a077 1472
dudmuck 0:8f0d0ae0a077 1473 static void OnMacStateCheckTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1474 {
dudmuck 0:8f0d0ae0a077 1475 bool txTimeout = false;
dudmuck 0:8f0d0ae0a077 1476
dudmuck 1:53c30224eda8 1477 //isr_printf("mac-check:%d McpsInd%d ", LoRaMacFlags.Bits.MacDone, LoRaMacFlags.Bits.McpsInd);
dudmuck 0:8f0d0ae0a077 1478 if( LoRaMacFlags.Bits.MacDone == 1 )
dudmuck 0:8f0d0ae0a077 1479 {
dudmuck 0:8f0d0ae0a077 1480 if( ( LoRaMacState & LORAMAC_RX_ABORT ) == LORAMAC_RX_ABORT )
dudmuck 0:8f0d0ae0a077 1481 {
dudmuck 0:8f0d0ae0a077 1482 LoRaMacState &= ~LORAMAC_RX_ABORT;
dudmuck 0:8f0d0ae0a077 1483 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 1:53c30224eda8 1484 //isr_printf("tx-run-A\r\n");
dudmuck 0:8f0d0ae0a077 1485 }
dudmuck 0:8f0d0ae0a077 1486
dudmuck 0:8f0d0ae0a077 1487 if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) || ( ( LoRaMacFlags.Bits.McpsReq == 1 ) ) )
dudmuck 0:8f0d0ae0a077 1488 {
dudmuck 0:8f0d0ae0a077 1489 if( ( McpsConfirm.Status == LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT ) ||
dudmuck 0:8f0d0ae0a077 1490 ( MlmeConfirm.Status == LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT ) )
dudmuck 0:8f0d0ae0a077 1491 {
dudmuck 0:8f0d0ae0a077 1492 // Stop transmit cycle due to tx timeout.
dudmuck 0:8f0d0ae0a077 1493 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 1:53c30224eda8 1494 //isr_printf("tx-run-B\r\n");
dudmuck 0:8f0d0ae0a077 1495 MacCommandsBufferIndex = 0;
dudmuck 0:8f0d0ae0a077 1496 McpsConfirm.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1497 McpsConfirm.TxTimeOnAir = 0;
dudmuck 0:8f0d0ae0a077 1498 txTimeout = true;
dudmuck 0:8f0d0ae0a077 1499 }
dudmuck 0:8f0d0ae0a077 1500 }
dudmuck 0:8f0d0ae0a077 1501
dudmuck 0:8f0d0ae0a077 1502 if( ( NodeAckRequested == false ) && ( txTimeout == false ) )
dudmuck 0:8f0d0ae0a077 1503 {
dudmuck 0:8f0d0ae0a077 1504 if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) || ( ( LoRaMacFlags.Bits.McpsReq == 1 ) ) )
dudmuck 0:8f0d0ae0a077 1505 {
dudmuck 0:8f0d0ae0a077 1506 if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) && ( MlmeConfirm.MlmeRequest == MLME_JOIN ) )
dudmuck 0:8f0d0ae0a077 1507 { // Procedure for the join request
dudmuck 0:8f0d0ae0a077 1508
dudmuck 0:8f0d0ae0a077 1509 if( MlmeConfirm.Status == LORAMAC_EVENT_INFO_STATUS_OK )
dudmuck 0:8f0d0ae0a077 1510 { // Node joined successfully
dudmuck 1:53c30224eda8 1511 isr_printf("mac-check-join ok ");
dudmuck 0:8f0d0ae0a077 1512 UpLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1513 ChannelsNbRepCounter = 0;
dudmuck 0:8f0d0ae0a077 1514 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 1515 }
dudmuck 0:8f0d0ae0a077 1516 else
dudmuck 0:8f0d0ae0a077 1517 {
dudmuck 1:53c30224eda8 1518 isr_printf("jrt:%u, maxjrt:%u\r\n", JoinRequestTrials, MaxJoinRequestTrials);
dudmuck 0:8f0d0ae0a077 1519 if( JoinRequestTrials >= MaxJoinRequestTrials )
dudmuck 0:8f0d0ae0a077 1520 {
dudmuck 0:8f0d0ae0a077 1521 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 1:53c30224eda8 1522 isr_printf("tx-run-D\r\n");
dudmuck 0:8f0d0ae0a077 1523 }
dudmuck 0:8f0d0ae0a077 1524 else
dudmuck 0:8f0d0ae0a077 1525 {
dudmuck 0:8f0d0ae0a077 1526 LoRaMacFlags.Bits.MacDone = 0;
dudmuck 0:8f0d0ae0a077 1527 // Sends the same frame again
dudmuck 0:8f0d0ae0a077 1528 OnTxDelayedTimerEvent( );
dudmuck 0:8f0d0ae0a077 1529 }
dudmuck 0:8f0d0ae0a077 1530 }
dudmuck 0:8f0d0ae0a077 1531 }
dudmuck 0:8f0d0ae0a077 1532 } // ..if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) || ( ( LoRaMacFlags.Bits.McpsReq == 1 ) ) )
dudmuck 0:8f0d0ae0a077 1533 } // ..if( ( NodeAckRequested == false ) && ( txTimeout == false ) )
dudmuck 0:8f0d0ae0a077 1534
dudmuck 0:8f0d0ae0a077 1535 if( LoRaMacFlags.Bits.McpsInd == 1 )
dudmuck 0:8f0d0ae0a077 1536 {// Procedure if we received a frame
dudmuck 0:8f0d0ae0a077 1537 if( ( McpsConfirm.AckReceived == true ) /*|| ( AckTimeoutRetriesCounter > AckTimeoutRetries )*/ )
dudmuck 0:8f0d0ae0a077 1538 {
dudmuck 0:8f0d0ae0a077 1539 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 1540 if( IsUpLinkCounterFixed == false )
dudmuck 0:8f0d0ae0a077 1541 {
dudmuck 0:8f0d0ae0a077 1542 UpLinkCounter++;
dudmuck 0:8f0d0ae0a077 1543 }
dudmuck 0:8f0d0ae0a077 1544
dudmuck 0:8f0d0ae0a077 1545 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 1:53c30224eda8 1546 //isr_printf("tx-run-E\r\n");
dudmuck 0:8f0d0ae0a077 1547 }
dudmuck 0:8f0d0ae0a077 1548 }
dudmuck 0:8f0d0ae0a077 1549
dudmuck 0:8f0d0ae0a077 1550 } // ...if( LoRaMacFlags.Bits.MacDone == 1 )
dudmuck 0:8f0d0ae0a077 1551
dudmuck 0:8f0d0ae0a077 1552 // Handle reception for Class B and Class C
dudmuck 0:8f0d0ae0a077 1553 if( ( LoRaMacState & LORAMAC_RX ) == LORAMAC_RX )
dudmuck 0:8f0d0ae0a077 1554 {
dudmuck 0:8f0d0ae0a077 1555 LoRaMacState &= ~LORAMAC_RX;
dudmuck 0:8f0d0ae0a077 1556 }
dudmuck 1:53c30224eda8 1557 //isr_printf("LoRaMacState:%lx ", LoRaMacState);
dudmuck 0:8f0d0ae0a077 1558 if( LoRaMacState == LORAMAC_IDLE )
dudmuck 0:8f0d0ae0a077 1559 {
dudmuck 1:53c30224eda8 1560 //isr_printf("McpsReq%d ", LoRaMacFlags.Bits.McpsReq);
dudmuck 0:8f0d0ae0a077 1561 if( LoRaMacFlags.Bits.McpsReq == 1 )
dudmuck 0:8f0d0ae0a077 1562 {
dudmuck 0:8f0d0ae0a077 1563 LoRaMacPrimitives->MacMcpsConfirm( &McpsConfirm );
dudmuck 0:8f0d0ae0a077 1564 LoRaMacFlags.Bits.McpsReq = 0;
dudmuck 0:8f0d0ae0a077 1565 }
dudmuck 0:8f0d0ae0a077 1566
dudmuck 0:8f0d0ae0a077 1567 if( LoRaMacFlags.Bits.MlmeReq == 1 )
dudmuck 0:8f0d0ae0a077 1568 {
dudmuck 0:8f0d0ae0a077 1569 LoRaMacPrimitives->MacMlmeConfirm( &MlmeConfirm );
dudmuck 0:8f0d0ae0a077 1570 LoRaMacFlags.Bits.MlmeReq = 0;
dudmuck 0:8f0d0ae0a077 1571 }
dudmuck 0:8f0d0ae0a077 1572
dudmuck 0:8f0d0ae0a077 1573 if( LoRaMacFlags.Bits.MlmeInd == 1 )
dudmuck 0:8f0d0ae0a077 1574 {
dudmuck 0:8f0d0ae0a077 1575 LoRaMacPrimitives->MacMlmeIndication( &MlmeIndication );
dudmuck 0:8f0d0ae0a077 1576 LoRaMacFlags.Bits.MlmeInd = 0;
dudmuck 0:8f0d0ae0a077 1577 }
dudmuck 0:8f0d0ae0a077 1578
dudmuck 0:8f0d0ae0a077 1579 // Procedure done. Reset variables.
dudmuck 0:8f0d0ae0a077 1580 LoRaMacFlags.Bits.MacDone = 0;
dudmuck 0:8f0d0ae0a077 1581 }
dudmuck 0:8f0d0ae0a077 1582 else
dudmuck 0:8f0d0ae0a077 1583 {
dudmuck 0:8f0d0ae0a077 1584 // Operation not finished restart timer
dudmuck 1:53c30224eda8 1585 //isr_printf("mac-restart-%lx ", LoRaMacState);
dudmuck 0:8f0d0ae0a077 1586 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 0:8f0d0ae0a077 1587 }
dudmuck 0:8f0d0ae0a077 1588
dudmuck 0:8f0d0ae0a077 1589 if( LoRaMacFlags.Bits.McpsInd == 1 )
dudmuck 0:8f0d0ae0a077 1590 {
dudmuck 0:8f0d0ae0a077 1591 if( LoRaMacFlags.Bits.McpsIndSkip == 0 )
dudmuck 0:8f0d0ae0a077 1592 {
dudmuck 0:8f0d0ae0a077 1593 LoRaMacPrimitives->MacMcpsIndication( &McpsIndication );
dudmuck 0:8f0d0ae0a077 1594 }
dudmuck 0:8f0d0ae0a077 1595 LoRaMacFlags.Bits.McpsIndSkip = 0;
dudmuck 0:8f0d0ae0a077 1596 LoRaMacFlags.Bits.McpsInd = 0;
dudmuck 0:8f0d0ae0a077 1597 }
dudmuck 1:53c30224eda8 1598 //isr_printf("\r\n");
dudmuck 0:8f0d0ae0a077 1599 } // ..OnMacStateCheckTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1600
dudmuck 0:8f0d0ae0a077 1601 static void OnTxDelayedTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1602 {
dudmuck 0:8f0d0ae0a077 1603 LoRaMacHeader_t macHdr;
dudmuck 0:8f0d0ae0a077 1604 LoRaMacFrameCtrl_t fCtrl;
dudmuck 0:8f0d0ae0a077 1605
dudmuck 0:8f0d0ae0a077 1606 LoRaMacState &= ~LORAMAC_TX_DELAYED;
dudmuck 0:8f0d0ae0a077 1607
dudmuck 0:8f0d0ae0a077 1608 if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) && ( MlmeConfirm.MlmeRequest == MLME_JOIN ) )
dudmuck 0:8f0d0ae0a077 1609 {
dudmuck 0:8f0d0ae0a077 1610 ResetMacParameters( );
dudmuck 0:8f0d0ae0a077 1611 if (++Channel == LORA_MAX_NB_CHANNELS)
dudmuck 0:8f0d0ae0a077 1612 Channel = 0;
dudmuck 1:53c30224eda8 1613 isr_printf("<ch%u>", Channel);
dudmuck 1:53c30224eda8 1614 isr_printf("tx-delayed join ch%u\r\n", Channel);
dudmuck 0:8f0d0ae0a077 1615
dudmuck 0:8f0d0ae0a077 1616 macHdr.Value = 0;
dudmuck 0:8f0d0ae0a077 1617 macHdr.Bits.MType = FRAME_TYPE_JOIN_REQ;
dudmuck 0:8f0d0ae0a077 1618
dudmuck 0:8f0d0ae0a077 1619 fCtrl.Value = 0;
dudmuck 0:8f0d0ae0a077 1620 fCtrl.Bits.Adr = 0;
dudmuck 0:8f0d0ae0a077 1621
dudmuck 0:8f0d0ae0a077 1622 /* In case of join request retransmissions, the stack must prepare
dudmuck 0:8f0d0ae0a077 1623 * the frame again, because the network server keeps track of the random
dudmuck 0:8f0d0ae0a077 1624 * LoRaMacDevNonce values to prevent reply attacks. */
dudmuck 0:8f0d0ae0a077 1625 PrepareFrame( &macHdr, &fCtrl, 0, NULL, 0 );
dudmuck 0:8f0d0ae0a077 1626 }
dudmuck 0:8f0d0ae0a077 1627
dudmuck 0:8f0d0ae0a077 1628 ScheduleTx( );
dudmuck 0:8f0d0ae0a077 1629 }
dudmuck 0:8f0d0ae0a077 1630
dudmuck 0:8f0d0ae0a077 1631 static void OnRxWindowTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1632 {
dudmuck 0:8f0d0ae0a077 1633 Radio.Standby( );
dudmuck 0:8f0d0ae0a077 1634
dudmuck 0:8f0d0ae0a077 1635 RxWindowSetup( LORAMAC_FIRST_CHANNEL + ( Channel * LORAMAC_STEPWIDTH_CHANNEL), RxWindowsParam.Datarate, RxWindowsParam.Bandwidth, RxWindowsParam.RxWindowTimeout, false );
dudmuck 1:53c30224eda8 1636 //isr_printf("rx-ch%u, %lu\r\n", Channel, RxWindowsParam.RxWindowTimeout);
dudmuck 0:8f0d0ae0a077 1637
dudmuck 0:8f0d0ae0a077 1638 /* no retrying TX in this class of operation */
dudmuck 0:8f0d0ae0a077 1639 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 1:53c30224eda8 1640 //isr_printf("rx-window ");
dudmuck 0:8f0d0ae0a077 1641 }
dudmuck 0:8f0d0ae0a077 1642
dudmuck 0:8f0d0ae0a077 1643 static void OnAckTimeoutTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1644 {
dudmuck 0:8f0d0ae0a077 1645 if( NodeAckRequested == true )
dudmuck 0:8f0d0ae0a077 1646 {
dudmuck 0:8f0d0ae0a077 1647 LoRaMacState &= ~LORAMAC_ACK_REQ;
dudmuck 0:8f0d0ae0a077 1648 }
dudmuck 0:8f0d0ae0a077 1649 }
dudmuck 0:8f0d0ae0a077 1650
dudmuck 0:8f0d0ae0a077 1651 static bool RxWindowSetup( uint32_t freq, int8_t datarate, uint32_t bandwidth, uint16_t timeout, bool rxContinuous )
dudmuck 0:8f0d0ae0a077 1652 {
dudmuck 0:8f0d0ae0a077 1653 uint8_t downlinkDatarate = Datarates[datarate];
dudmuck 0:8f0d0ae0a077 1654 RadioModems_t modem;
dudmuck 0:8f0d0ae0a077 1655
dudmuck 0:8f0d0ae0a077 1656 if( Radio.GetStatus( ) == RF_IDLE )
dudmuck 0:8f0d0ae0a077 1657 {
dudmuck 0:8f0d0ae0a077 1658 Radio.SetChannel( freq );
dudmuck 0:8f0d0ae0a077 1659
dudmuck 0:8f0d0ae0a077 1660 // Store downlink datarate
dudmuck 0:8f0d0ae0a077 1661 McpsIndication.RxDatarate = ( uint8_t ) datarate;
dudmuck 0:8f0d0ae0a077 1662
dudmuck 0:8f0d0ae0a077 1663 modem = MODEM_LORA;
dudmuck 0:8f0d0ae0a077 1664 Radio.SetRxConfig( modem, bandwidth, downlinkDatarate, 1, 0, 8, timeout, false, 0, false, 0, 0, true, rxContinuous );
dudmuck 0:8f0d0ae0a077 1665 Radio.SetMaxPayloadLength( MODEM_LORA, 255 );
dudmuck 0:8f0d0ae0a077 1666
dudmuck 0:8f0d0ae0a077 1667 if( rxContinuous == false )
dudmuck 0:8f0d0ae0a077 1668 {
dudmuck 0:8f0d0ae0a077 1669 Radio.Rx( LoRaMacParams.MaxRxWindow );
dudmuck 0:8f0d0ae0a077 1670 }
dudmuck 0:8f0d0ae0a077 1671 else
dudmuck 0:8f0d0ae0a077 1672 {
dudmuck 0:8f0d0ae0a077 1673 Radio.Rx( 0 ); // Continuous mode
dudmuck 0:8f0d0ae0a077 1674 }
dudmuck 1:53c30224eda8 1675 //isr_printf("rx-setup %u %lu\r\n", timeout, LoRaMacParams.MaxRxWindow);
dudmuck 1:53c30224eda8 1676 //isr_printf("rx:%luhz sf%u bw%lu\r\n", freq, downlinkDatarate, bandwidth);
dudmuck 0:8f0d0ae0a077 1677 return true;
dudmuck 0:8f0d0ae0a077 1678 }
dudmuck 0:8f0d0ae0a077 1679 return false;
dudmuck 0:8f0d0ae0a077 1680 }
dudmuck 0:8f0d0ae0a077 1681
dudmuck 0:8f0d0ae0a077 1682 static bool ValueInRange( int8_t value, int8_t min, int8_t max )
dudmuck 0:8f0d0ae0a077 1683 {
dudmuck 0:8f0d0ae0a077 1684 if( ( value >= min ) && ( value <= max ) )
dudmuck 0:8f0d0ae0a077 1685 {
dudmuck 0:8f0d0ae0a077 1686 return true;
dudmuck 0:8f0d0ae0a077 1687 }
dudmuck 0:8f0d0ae0a077 1688 return false;
dudmuck 0:8f0d0ae0a077 1689 }
dudmuck 0:8f0d0ae0a077 1690
dudmuck 0:8f0d0ae0a077 1691 static LoRaMacStatus_t AddMacCommand( uint8_t cmd, uint8_t p1, uint8_t p2 )
dudmuck 0:8f0d0ae0a077 1692 {
dudmuck 0:8f0d0ae0a077 1693 LoRaMacStatus_t status = LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 1694 // The maximum buffer length must take MAC commands to re-send into account.
dudmuck 0:8f0d0ae0a077 1695 uint8_t bufLen = LORA_MAC_COMMAND_MAX_LENGTH - MacCommandsBufferToRepeatIndex;
dudmuck 0:8f0d0ae0a077 1696
dudmuck 0:8f0d0ae0a077 1697 switch( cmd )
dudmuck 0:8f0d0ae0a077 1698 {
dudmuck 0:8f0d0ae0a077 1699 case MOTE_MAC_LINK_CHECK_REQ:
dudmuck 0:8f0d0ae0a077 1700 if( MacCommandsBufferIndex < bufLen )
dudmuck 0:8f0d0ae0a077 1701 {
dudmuck 0:8f0d0ae0a077 1702 MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
dudmuck 0:8f0d0ae0a077 1703 // No payload for this command
dudmuck 0:8f0d0ae0a077 1704 status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1705 }
dudmuck 0:8f0d0ae0a077 1706 break;
dudmuck 0:8f0d0ae0a077 1707 case MOTE_MAC_RX_PARAM_SETUP_ANS:
dudmuck 0:8f0d0ae0a077 1708 if( MacCommandsBufferIndex < ( bufLen - 1 ) )
dudmuck 0:8f0d0ae0a077 1709 {
dudmuck 0:8f0d0ae0a077 1710 MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
dudmuck 0:8f0d0ae0a077 1711 // Status: Datarate ACK, Channel ACK
dudmuck 0:8f0d0ae0a077 1712 MacCommandsBuffer[MacCommandsBufferIndex++] = p1;
dudmuck 0:8f0d0ae0a077 1713 status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1714 }
dudmuck 0:8f0d0ae0a077 1715 break;
dudmuck 0:8f0d0ae0a077 1716 case MOTE_MAC_DEV_STATUS_ANS:
dudmuck 0:8f0d0ae0a077 1717 if( MacCommandsBufferIndex < ( bufLen - 2 ) )
dudmuck 0:8f0d0ae0a077 1718 {
dudmuck 0:8f0d0ae0a077 1719 MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
dudmuck 0:8f0d0ae0a077 1720 // 1st byte Battery
dudmuck 0:8f0d0ae0a077 1721 // 2nd byte Margin
dudmuck 0:8f0d0ae0a077 1722 MacCommandsBuffer[MacCommandsBufferIndex++] = p1;
dudmuck 0:8f0d0ae0a077 1723 MacCommandsBuffer[MacCommandsBufferIndex++] = p2;
dudmuck 0:8f0d0ae0a077 1724 status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1725 }
dudmuck 0:8f0d0ae0a077 1726 break;
dudmuck 0:8f0d0ae0a077 1727 case MOTE_MAC_RX_TIMING_SETUP_ANS:
dudmuck 0:8f0d0ae0a077 1728 if( MacCommandsBufferIndex < bufLen )
dudmuck 0:8f0d0ae0a077 1729 {
dudmuck 0:8f0d0ae0a077 1730 MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
dudmuck 0:8f0d0ae0a077 1731 // No payload for this answer
dudmuck 0:8f0d0ae0a077 1732 status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1733 }
dudmuck 0:8f0d0ae0a077 1734 break;
dudmuck 0:8f0d0ae0a077 1735 default:
dudmuck 0:8f0d0ae0a077 1736 return LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 1737 }
dudmuck 0:8f0d0ae0a077 1738 if( status == LORAMAC_STATUS_OK )
dudmuck 0:8f0d0ae0a077 1739 {
dudmuck 0:8f0d0ae0a077 1740 MacCommandsInNextTx = true;
dudmuck 0:8f0d0ae0a077 1741 }
dudmuck 0:8f0d0ae0a077 1742 return status;
dudmuck 0:8f0d0ae0a077 1743 }
dudmuck 0:8f0d0ae0a077 1744
dudmuck 0:8f0d0ae0a077 1745 static uint8_t ParseMacCommandsToRepeat( uint8_t* cmdBufIn, uint8_t length, uint8_t* cmdBufOut )
dudmuck 0:8f0d0ae0a077 1746 {
dudmuck 0:8f0d0ae0a077 1747 uint8_t i = 0;
dudmuck 0:8f0d0ae0a077 1748 uint8_t cmdCount = 0;
dudmuck 0:8f0d0ae0a077 1749
dudmuck 0:8f0d0ae0a077 1750 if( ( cmdBufIn == NULL ) || ( cmdBufOut == NULL ) )
dudmuck 0:8f0d0ae0a077 1751 {
dudmuck 0:8f0d0ae0a077 1752 return 0;
dudmuck 0:8f0d0ae0a077 1753 }
dudmuck 0:8f0d0ae0a077 1754
dudmuck 0:8f0d0ae0a077 1755 for( i = 0; i < length; i++ )
dudmuck 0:8f0d0ae0a077 1756 {
dudmuck 0:8f0d0ae0a077 1757 switch( cmdBufIn[i] )
dudmuck 0:8f0d0ae0a077 1758 {
dudmuck 0:8f0d0ae0a077 1759 // STICKY
dudmuck 0:8f0d0ae0a077 1760 case MOTE_MAC_RX_PARAM_SETUP_ANS:
dudmuck 0:8f0d0ae0a077 1761 {
dudmuck 0:8f0d0ae0a077 1762 cmdBufOut[cmdCount++] = cmdBufIn[i++];
dudmuck 0:8f0d0ae0a077 1763 cmdBufOut[cmdCount++] = cmdBufIn[i];
dudmuck 0:8f0d0ae0a077 1764 break;
dudmuck 0:8f0d0ae0a077 1765 }
dudmuck 0:8f0d0ae0a077 1766 case MOTE_MAC_RX_TIMING_SETUP_ANS:
dudmuck 0:8f0d0ae0a077 1767 {
dudmuck 0:8f0d0ae0a077 1768 cmdBufOut[cmdCount++] = cmdBufIn[i];
dudmuck 0:8f0d0ae0a077 1769 break;
dudmuck 0:8f0d0ae0a077 1770 }
dudmuck 0:8f0d0ae0a077 1771 // NON-STICKY
dudmuck 0:8f0d0ae0a077 1772 case MOTE_MAC_DEV_STATUS_ANS:
dudmuck 0:8f0d0ae0a077 1773 { // 2 bytes payload
dudmuck 0:8f0d0ae0a077 1774 i += 2;
dudmuck 0:8f0d0ae0a077 1775 break;
dudmuck 0:8f0d0ae0a077 1776 }
dudmuck 0:8f0d0ae0a077 1777 case MOTE_MAC_LINK_CHECK_REQ:
dudmuck 0:8f0d0ae0a077 1778 { // 0 byte payload
dudmuck 0:8f0d0ae0a077 1779 break;
dudmuck 0:8f0d0ae0a077 1780 }
dudmuck 0:8f0d0ae0a077 1781 default:
dudmuck 0:8f0d0ae0a077 1782 break;
dudmuck 0:8f0d0ae0a077 1783 }
dudmuck 0:8f0d0ae0a077 1784 }
dudmuck 0:8f0d0ae0a077 1785
dudmuck 0:8f0d0ae0a077 1786 return cmdCount;
dudmuck 0:8f0d0ae0a077 1787 }
dudmuck 0:8f0d0ae0a077 1788
dudmuck 0:8f0d0ae0a077 1789 static void ProcessMacCommands( uint8_t *payload, uint8_t macIndex, uint8_t commandsSize, uint8_t snr )
dudmuck 0:8f0d0ae0a077 1790 {
dudmuck 0:8f0d0ae0a077 1791 while( macIndex < commandsSize )
dudmuck 0:8f0d0ae0a077 1792 {
dudmuck 0:8f0d0ae0a077 1793 // Decode Frame MAC commands
dudmuck 0:8f0d0ae0a077 1794 switch( payload[macIndex++] )
dudmuck 0:8f0d0ae0a077 1795 {
dudmuck 0:8f0d0ae0a077 1796 case SRV_MAC_LINK_CHECK_ANS:
dudmuck 0:8f0d0ae0a077 1797 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1798 MlmeConfirm.DemodMargin = payload[macIndex++];
dudmuck 0:8f0d0ae0a077 1799 MlmeConfirm.NbGateways = payload[macIndex++];
dudmuck 0:8f0d0ae0a077 1800 break;
dudmuck 0:8f0d0ae0a077 1801 case SRV_MAC_DEV_STATUS_REQ:
dudmuck 0:8f0d0ae0a077 1802 {
dudmuck 0:8f0d0ae0a077 1803 uint8_t batteryLevel = BAT_LEVEL_NO_MEASURE;
dudmuck 0:8f0d0ae0a077 1804 if( ( LoRaMacCallbacks != NULL ) && ( LoRaMacCallbacks->GetBatteryLevel != NULL ) )
dudmuck 0:8f0d0ae0a077 1805 {
dudmuck 0:8f0d0ae0a077 1806 batteryLevel = LoRaMacCallbacks->GetBatteryLevel( );
dudmuck 0:8f0d0ae0a077 1807 }
dudmuck 0:8f0d0ae0a077 1808 AddMacCommand( MOTE_MAC_DEV_STATUS_ANS, batteryLevel, snr );
dudmuck 0:8f0d0ae0a077 1809 break;
dudmuck 0:8f0d0ae0a077 1810 }
dudmuck 0:8f0d0ae0a077 1811 case SRV_MAC_RX_TIMING_SETUP_REQ:
dudmuck 0:8f0d0ae0a077 1812 {
dudmuck 0:8f0d0ae0a077 1813 uint8_t delay = payload[macIndex++] & 0x0F;
dudmuck 0:8f0d0ae0a077 1814
dudmuck 0:8f0d0ae0a077 1815 if( delay == 0 )
dudmuck 0:8f0d0ae0a077 1816 {
dudmuck 0:8f0d0ae0a077 1817 delay++;
dudmuck 0:8f0d0ae0a077 1818 }
dudmuck 0:8f0d0ae0a077 1819 LoRaMacParams.ReceiveDelay_us = delay * 1e6;
dudmuck 0:8f0d0ae0a077 1820 AddMacCommand( MOTE_MAC_RX_TIMING_SETUP_ANS, 0, 0 );
dudmuck 0:8f0d0ae0a077 1821 }
dudmuck 0:8f0d0ae0a077 1822 break;
dudmuck 0:8f0d0ae0a077 1823 default:
dudmuck 0:8f0d0ae0a077 1824 // Unknown command. ABORT MAC commands processing
dudmuck 0:8f0d0ae0a077 1825 return;
dudmuck 0:8f0d0ae0a077 1826 }
dudmuck 0:8f0d0ae0a077 1827 }
dudmuck 0:8f0d0ae0a077 1828 }
dudmuck 0:8f0d0ae0a077 1829
dudmuck 0:8f0d0ae0a077 1830 LoRaMacStatus_t Send( LoRaMacHeader_t *macHdr, uint8_t fPort, void *fBuffer, uint16_t fBufferSize )
dudmuck 0:8f0d0ae0a077 1831 {
dudmuck 0:8f0d0ae0a077 1832 LoRaMacFrameCtrl_t fCtrl;
dudmuck 0:8f0d0ae0a077 1833 LoRaMacStatus_t status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 1834
dudmuck 0:8f0d0ae0a077 1835 fCtrl.Value = 0;
dudmuck 0:8f0d0ae0a077 1836 fCtrl.Bits.FOptsLen = 0;
dudmuck 0:8f0d0ae0a077 1837 fCtrl.Bits.FPending = 0;
dudmuck 0:8f0d0ae0a077 1838 fCtrl.Bits.Ack = false;
dudmuck 0:8f0d0ae0a077 1839 fCtrl.Bits.AdrAckReq = false;
dudmuck 0:8f0d0ae0a077 1840 fCtrl.Bits.Adr = false;
dudmuck 0:8f0d0ae0a077 1841
dudmuck 0:8f0d0ae0a077 1842 // Prepare the frame
dudmuck 0:8f0d0ae0a077 1843 status = PrepareFrame( macHdr, &fCtrl, fPort, fBuffer, fBufferSize );
dudmuck 0:8f0d0ae0a077 1844
dudmuck 0:8f0d0ae0a077 1845 // Validate status
dudmuck 0:8f0d0ae0a077 1846 if( status != LORAMAC_STATUS_OK )
dudmuck 0:8f0d0ae0a077 1847 {
dudmuck 0:8f0d0ae0a077 1848 return status;
dudmuck 0:8f0d0ae0a077 1849 }
dudmuck 0:8f0d0ae0a077 1850
dudmuck 0:8f0d0ae0a077 1851 // Reset confirm parameters
dudmuck 0:8f0d0ae0a077 1852 McpsConfirm.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1853 McpsConfirm.UpLinkCounter = UpLinkCounter;
dudmuck 0:8f0d0ae0a077 1854
dudmuck 0:8f0d0ae0a077 1855 status = ScheduleTx( );
dudmuck 0:8f0d0ae0a077 1856
dudmuck 0:8f0d0ae0a077 1857 return status;
dudmuck 0:8f0d0ae0a077 1858 }
dudmuck 0:8f0d0ae0a077 1859
dudmuck 0:8f0d0ae0a077 1860 static LoRaMacStatus_t ScheduleTx( void )
dudmuck 0:8f0d0ae0a077 1861 {
dudmuck 0:8f0d0ae0a077 1862 // Compute Rx1 windows parameters
dudmuck 0:8f0d0ae0a077 1863 if( IsLoRaMacNetworkJoined == false )
dudmuck 0:8f0d0ae0a077 1864 {
dudmuck 0:8f0d0ae0a077 1865 RxWindowDelay_us = LoRaMacParams.JoinAcceptDelay_us + RxWindowsParam.RxOffset; // dont care
dudmuck 0:8f0d0ae0a077 1866 }
dudmuck 0:8f0d0ae0a077 1867 else
dudmuck 0:8f0d0ae0a077 1868 {
dudmuck 0:8f0d0ae0a077 1869 RxWindowDelay_us = LoRaMacParams.ReceiveDelay_us + RxWindowsParam.RxOffset;
dudmuck 0:8f0d0ae0a077 1870 }
dudmuck 0:8f0d0ae0a077 1871
dudmuck 0:8f0d0ae0a077 1872 // Schedule transmission of frame
dudmuck 0:8f0d0ae0a077 1873
dudmuck 0:8f0d0ae0a077 1874 // Try to send now
dudmuck 0:8f0d0ae0a077 1875 return SendFrameOnChannel( Channels[Channel] );
dudmuck 0:8f0d0ae0a077 1876 }
dudmuck 0:8f0d0ae0a077 1877
dudmuck 0:8f0d0ae0a077 1878 static void ResetMacParameters( void )
dudmuck 0:8f0d0ae0a077 1879 {
dudmuck 0:8f0d0ae0a077 1880 IsLoRaMacNetworkJoined = false;
dudmuck 0:8f0d0ae0a077 1881
dudmuck 0:8f0d0ae0a077 1882 // Counters
dudmuck 0:8f0d0ae0a077 1883 UpLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1884 DownLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1885
dudmuck 0:8f0d0ae0a077 1886 ChannelsNbRepCounter = 0;
dudmuck 0:8f0d0ae0a077 1887
dudmuck 0:8f0d0ae0a077 1888 MacCommandsBufferIndex = 0;
dudmuck 0:8f0d0ae0a077 1889 MacCommandsBufferToRepeatIndex = 0;
dudmuck 0:8f0d0ae0a077 1890
dudmuck 0:8f0d0ae0a077 1891 IsRxWindowsEnabled = true;
dudmuck 0:8f0d0ae0a077 1892
dudmuck 0:8f0d0ae0a077 1893 LoRaMacParams.ChannelsTxPower = LoRaMacParamsDefaults.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 1894 LoRaMacParams.ChannelsDatarate_fixed = LoRaMacParamsDefaults.ChannelsDatarate_fixed;
dudmuck 0:8f0d0ae0a077 1895
dudmuck 0:8f0d0ae0a077 1896 LoRaMacParams.Rx1DrOffset = LoRaMacParamsDefaults.Rx1DrOffset;
dudmuck 0:8f0d0ae0a077 1897
dudmuck 0:8f0d0ae0a077 1898 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 1899 SrvAckRequested = false;
dudmuck 0:8f0d0ae0a077 1900 MacCommandsInNextTx = false;
dudmuck 0:8f0d0ae0a077 1901
dudmuck 0:8f0d0ae0a077 1902 // Reset Multicast downlink counters
dudmuck 0:8f0d0ae0a077 1903 MulticastParams_t *cur = MulticastChannels;
dudmuck 0:8f0d0ae0a077 1904 while( cur != NULL )
dudmuck 0:8f0d0ae0a077 1905 {
dudmuck 0:8f0d0ae0a077 1906 cur->DownLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1907 cur = cur->Next;
dudmuck 0:8f0d0ae0a077 1908 }
dudmuck 0:8f0d0ae0a077 1909
dudmuck 0:8f0d0ae0a077 1910 }
dudmuck 0:8f0d0ae0a077 1911
dudmuck 0:8f0d0ae0a077 1912 LoRaMacStatus_t PrepareFrame( LoRaMacHeader_t *macHdr, LoRaMacFrameCtrl_t *fCtrl, uint8_t fPort, void *fBuffer, uint16_t fBufferSize )
dudmuck 0:8f0d0ae0a077 1913 {
dudmuck 0:8f0d0ae0a077 1914 uint16_t i;
dudmuck 0:8f0d0ae0a077 1915 uint8_t pktHeaderLen = 0;
dudmuck 0:8f0d0ae0a077 1916 uint32_t mic = 0;
dudmuck 0:8f0d0ae0a077 1917 const void* payload = fBuffer;
dudmuck 0:8f0d0ae0a077 1918 uint8_t framePort = fPort;
dudmuck 0:8f0d0ae0a077 1919
dudmuck 0:8f0d0ae0a077 1920 LoRaMacBufferPktLen = 0;
dudmuck 0:8f0d0ae0a077 1921
dudmuck 0:8f0d0ae0a077 1922 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 1923
dudmuck 0:8f0d0ae0a077 1924 if( fBuffer == NULL )
dudmuck 0:8f0d0ae0a077 1925 {
dudmuck 0:8f0d0ae0a077 1926 fBufferSize = 0;
dudmuck 0:8f0d0ae0a077 1927 }
dudmuck 0:8f0d0ae0a077 1928
dudmuck 0:8f0d0ae0a077 1929 LoRaMacTxPayloadLen = fBufferSize;
dudmuck 0:8f0d0ae0a077 1930
dudmuck 0:8f0d0ae0a077 1931 LoRaMacBuffer[pktHeaderLen++] = macHdr->Value;
dudmuck 0:8f0d0ae0a077 1932
dudmuck 0:8f0d0ae0a077 1933 switch( macHdr->Bits.MType )
dudmuck 0:8f0d0ae0a077 1934 {
dudmuck 0:8f0d0ae0a077 1935 case FRAME_TYPE_JOIN_REQ:
dudmuck 0:8f0d0ae0a077 1936 LoRaMacBufferPktLen = pktHeaderLen;
dudmuck 0:8f0d0ae0a077 1937
dudmuck 0:8f0d0ae0a077 1938 memcpyr( LoRaMacBuffer + LoRaMacBufferPktLen, LoRaMacAppEui, 8 );
dudmuck 0:8f0d0ae0a077 1939 LoRaMacBufferPktLen += 8;
dudmuck 0:8f0d0ae0a077 1940 memcpyr( LoRaMacBuffer + LoRaMacBufferPktLen, LoRaMacDevEui, 8 );
dudmuck 0:8f0d0ae0a077 1941 LoRaMacBufferPktLen += 8;
dudmuck 0:8f0d0ae0a077 1942
dudmuck 0:8f0d0ae0a077 1943 LoRaMacDevNonce = Radio.Random( );
dudmuck 0:8f0d0ae0a077 1944
dudmuck 0:8f0d0ae0a077 1945 LoRaMacBuffer[LoRaMacBufferPktLen++] = LoRaMacDevNonce & 0xFF;
dudmuck 0:8f0d0ae0a077 1946 LoRaMacBuffer[LoRaMacBufferPktLen++] = ( LoRaMacDevNonce >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1947
dudmuck 0:8f0d0ae0a077 1948 LoRaMacJoinComputeMic( LoRaMacBuffer, LoRaMacBufferPktLen & 0xFF, LoRaMacAppKey, &mic );
dudmuck 0:8f0d0ae0a077 1949
dudmuck 0:8f0d0ae0a077 1950 LoRaMacBuffer[LoRaMacBufferPktLen++] = mic & 0xFF;
dudmuck 0:8f0d0ae0a077 1951 LoRaMacBuffer[LoRaMacBufferPktLen++] = ( mic >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1952 LoRaMacBuffer[LoRaMacBufferPktLen++] = ( mic >> 16 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1953 LoRaMacBuffer[LoRaMacBufferPktLen++] = ( mic >> 24 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1954
dudmuck 0:8f0d0ae0a077 1955 break;
dudmuck 0:8f0d0ae0a077 1956 case FRAME_TYPE_DATA_CONFIRMED_UP:
dudmuck 0:8f0d0ae0a077 1957 NodeAckRequested = true;
dudmuck 0:8f0d0ae0a077 1958 //Intentional fallthrough
dudmuck 0:8f0d0ae0a077 1959 case FRAME_TYPE_DATA_UNCONFIRMED_UP:
dudmuck 0:8f0d0ae0a077 1960 if( IsLoRaMacNetworkJoined == false )
dudmuck 0:8f0d0ae0a077 1961 {
dudmuck 0:8f0d0ae0a077 1962 return LORAMAC_STATUS_NO_NETWORK_JOINED; // No network has been joined yet
dudmuck 0:8f0d0ae0a077 1963 }
dudmuck 0:8f0d0ae0a077 1964
dudmuck 0:8f0d0ae0a077 1965 fCtrl->Bits.AdrAckReq = 0;
dudmuck 0:8f0d0ae0a077 1966
dudmuck 0:8f0d0ae0a077 1967 if( SrvAckRequested == true )
dudmuck 0:8f0d0ae0a077 1968 {
dudmuck 0:8f0d0ae0a077 1969 SrvAckRequested = false;
dudmuck 0:8f0d0ae0a077 1970 fCtrl->Bits.Ack = 1;
dudmuck 0:8f0d0ae0a077 1971 }
dudmuck 0:8f0d0ae0a077 1972
dudmuck 0:8f0d0ae0a077 1973 LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1974 LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1975 LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr >> 16 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1976 LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr >> 24 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1977
dudmuck 0:8f0d0ae0a077 1978 LoRaMacBuffer[pktHeaderLen++] = fCtrl->Value;
dudmuck 0:8f0d0ae0a077 1979
dudmuck 0:8f0d0ae0a077 1980 LoRaMacBuffer[pktHeaderLen++] = UpLinkCounter & 0xFF;
dudmuck 0:8f0d0ae0a077 1981 LoRaMacBuffer[pktHeaderLen++] = ( UpLinkCounter >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1982
dudmuck 0:8f0d0ae0a077 1983 // Copy the MAC commands which must be re-send into the MAC command buffer
dudmuck 0:8f0d0ae0a077 1984 memcpy1( &MacCommandsBuffer[MacCommandsBufferIndex], MacCommandsBufferToRepeat, MacCommandsBufferToRepeatIndex );
dudmuck 0:8f0d0ae0a077 1985 MacCommandsBufferIndex += MacCommandsBufferToRepeatIndex;
dudmuck 0:8f0d0ae0a077 1986
dudmuck 0:8f0d0ae0a077 1987 if( ( payload != NULL ) && ( LoRaMacTxPayloadLen > 0 ) )
dudmuck 0:8f0d0ae0a077 1988 {
dudmuck 0:8f0d0ae0a077 1989 if( ( MacCommandsBufferIndex <= LORA_MAC_COMMAND_MAX_LENGTH ) && ( MacCommandsInNextTx == true ) )
dudmuck 0:8f0d0ae0a077 1990 {
dudmuck 0:8f0d0ae0a077 1991 fCtrl->Bits.FOptsLen += MacCommandsBufferIndex;
dudmuck 0:8f0d0ae0a077 1992
dudmuck 0:8f0d0ae0a077 1993 // Update FCtrl field with new value of OptionsLength
dudmuck 0:8f0d0ae0a077 1994 LoRaMacBuffer[0x05] = fCtrl->Value;
dudmuck 0:8f0d0ae0a077 1995 for( i = 0; i < MacCommandsBufferIndex; i++ )
dudmuck 0:8f0d0ae0a077 1996 {
dudmuck 0:8f0d0ae0a077 1997 LoRaMacBuffer[pktHeaderLen++] = MacCommandsBuffer[i];
dudmuck 0:8f0d0ae0a077 1998 }
dudmuck 0:8f0d0ae0a077 1999 }
dudmuck 0:8f0d0ae0a077 2000 }
dudmuck 0:8f0d0ae0a077 2001 else
dudmuck 0:8f0d0ae0a077 2002 {
dudmuck 0:8f0d0ae0a077 2003 if( ( MacCommandsBufferIndex > 0 ) && ( MacCommandsInNextTx ) )
dudmuck 0:8f0d0ae0a077 2004 {
dudmuck 0:8f0d0ae0a077 2005 LoRaMacTxPayloadLen = MacCommandsBufferIndex;
dudmuck 0:8f0d0ae0a077 2006 payload = MacCommandsBuffer;
dudmuck 0:8f0d0ae0a077 2007 framePort = 0;
dudmuck 0:8f0d0ae0a077 2008 }
dudmuck 0:8f0d0ae0a077 2009 }
dudmuck 0:8f0d0ae0a077 2010 MacCommandsInNextTx = false;
dudmuck 0:8f0d0ae0a077 2011 // Store MAC commands which must be re-send in case the device does not receive a downlink anymore
dudmuck 0:8f0d0ae0a077 2012 MacCommandsBufferToRepeatIndex = ParseMacCommandsToRepeat( MacCommandsBuffer, MacCommandsBufferIndex, MacCommandsBufferToRepeat );
dudmuck 0:8f0d0ae0a077 2013 if( MacCommandsBufferToRepeatIndex > 0 )
dudmuck 0:8f0d0ae0a077 2014 {
dudmuck 0:8f0d0ae0a077 2015 MacCommandsInNextTx = true;
dudmuck 0:8f0d0ae0a077 2016 }
dudmuck 0:8f0d0ae0a077 2017
dudmuck 0:8f0d0ae0a077 2018 if( ( payload != NULL ) && ( LoRaMacTxPayloadLen > 0 ) )
dudmuck 0:8f0d0ae0a077 2019 {
dudmuck 0:8f0d0ae0a077 2020 LoRaMacBuffer[pktHeaderLen++] = framePort;
dudmuck 0:8f0d0ae0a077 2021
dudmuck 0:8f0d0ae0a077 2022 if( framePort == 0 )
dudmuck 0:8f0d0ae0a077 2023 {
dudmuck 0:8f0d0ae0a077 2024 LoRaMacPayloadEncrypt( (uint8_t* ) payload, LoRaMacTxPayloadLen, LoRaMacNwkSKey, LoRaMacDevAddr, UP_LINK, UpLinkCounter, &LoRaMacBuffer[pktHeaderLen] );
dudmuck 0:8f0d0ae0a077 2025 }
dudmuck 0:8f0d0ae0a077 2026 else
dudmuck 0:8f0d0ae0a077 2027 {
dudmuck 0:8f0d0ae0a077 2028 LoRaMacPayloadEncrypt( (uint8_t* ) payload, LoRaMacTxPayloadLen, LoRaMacAppSKey, LoRaMacDevAddr, UP_LINK, UpLinkCounter, &LoRaMacBuffer[pktHeaderLen] );
dudmuck 0:8f0d0ae0a077 2029 }
dudmuck 0:8f0d0ae0a077 2030 }
dudmuck 0:8f0d0ae0a077 2031 LoRaMacBufferPktLen = pktHeaderLen + LoRaMacTxPayloadLen;
dudmuck 0:8f0d0ae0a077 2032
dudmuck 0:8f0d0ae0a077 2033 LoRaMacComputeMic( LoRaMacBuffer, LoRaMacBufferPktLen, LoRaMacNwkSKey, LoRaMacDevAddr, UP_LINK, UpLinkCounter, &mic );
dudmuck 0:8f0d0ae0a077 2034
dudmuck 0:8f0d0ae0a077 2035 LoRaMacBuffer[LoRaMacBufferPktLen + 0] = mic & 0xFF;
dudmuck 0:8f0d0ae0a077 2036 LoRaMacBuffer[LoRaMacBufferPktLen + 1] = ( mic >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 2037 LoRaMacBuffer[LoRaMacBufferPktLen + 2] = ( mic >> 16 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 2038 LoRaMacBuffer[LoRaMacBufferPktLen + 3] = ( mic >> 24 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 2039
dudmuck 0:8f0d0ae0a077 2040 LoRaMacBufferPktLen += LORAMAC_MFR_LEN;
dudmuck 0:8f0d0ae0a077 2041
dudmuck 0:8f0d0ae0a077 2042 break;
dudmuck 0:8f0d0ae0a077 2043 case FRAME_TYPE_PROPRIETARY:
dudmuck 0:8f0d0ae0a077 2044 if( ( fBuffer != NULL ) && ( LoRaMacTxPayloadLen > 0 ) )
dudmuck 0:8f0d0ae0a077 2045 {
dudmuck 0:8f0d0ae0a077 2046 memcpy1( LoRaMacBuffer + pktHeaderLen, ( uint8_t* ) fBuffer, LoRaMacTxPayloadLen );
dudmuck 0:8f0d0ae0a077 2047 LoRaMacBufferPktLen = pktHeaderLen + LoRaMacTxPayloadLen;
dudmuck 0:8f0d0ae0a077 2048 }
dudmuck 0:8f0d0ae0a077 2049 break;
dudmuck 0:8f0d0ae0a077 2050 default:
dudmuck 0:8f0d0ae0a077 2051 return LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2052 }
dudmuck 0:8f0d0ae0a077 2053
dudmuck 0:8f0d0ae0a077 2054 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2055 }
dudmuck 0:8f0d0ae0a077 2056
dudmuck 0:8f0d0ae0a077 2057
dudmuck 5:c108560af4c3 2058 //TxPowers[LoRaMacParams.ChannelsTxPower]
dudmuck 0:8f0d0ae0a077 2059 LoRaMacStatus_t SendFrameOnChannel( ChannelParams_t channel )
dudmuck 0:8f0d0ae0a077 2060 {
dudmuck 0:8f0d0ae0a077 2061 int8_t datarate = Datarates[LoRaMacParams.ChannelsDatarate_fixed];
dudmuck 0:8f0d0ae0a077 2062 int8_t txPowerIndex = 0;
dudmuck 0:8f0d0ae0a077 2063 int8_t txPower = 0;
dudmuck 0:8f0d0ae0a077 2064
dudmuck 0:8f0d0ae0a077 2065 if (LoRaMacState & LORAMAC_TX_SCHED) {
dudmuck 0:8f0d0ae0a077 2066 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2067 }
dudmuck 0:8f0d0ae0a077 2068
dudmuck 0:8f0d0ae0a077 2069 txPowerIndex = LoRaMacParams.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2070 txPower = TxPowers[txPowerIndex];
dudmuck 0:8f0d0ae0a077 2071
dudmuck 2:f2d9aa163652 2072 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_SEND;
dudmuck 2:f2d9aa163652 2073 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_SEND;
dudmuck 0:8f0d0ae0a077 2074 McpsConfirm.TxPower = txPowerIndex;
dudmuck 0:8f0d0ae0a077 2075 McpsConfirm.UpLinkFrequency = channel.Frequency;
dudmuck 0:8f0d0ae0a077 2076
dudmuck 0:8f0d0ae0a077 2077 Radio.SetChannel( channel.Frequency );
dudmuck 0:8f0d0ae0a077 2078
dudmuck 0:8f0d0ae0a077 2079 if( LoRaMacParams.ChannelsDatarate_fixed >= DR_8 )
dudmuck 0:8f0d0ae0a077 2080 { // High speed LoRa channel BW500 kHz
dudmuck 5:c108560af4c3 2081 //Radio.SetTxConfig( MODEM_LORA, txPower, 0, 2, datarate, 1, 8, false, true, 0, 0, false, 3e3 );
dudmuck 0:8f0d0ae0a077 2082 TxTimeOnAir = Radio.TimeOnAir( MODEM_LORA, LoRaMacBufferPktLen );
dudmuck 0:8f0d0ae0a077 2083 } else
dudmuck 0:8f0d0ae0a077 2084 return LORAMAC_STATUS_DATARATE_INVALID;
dudmuck 0:8f0d0ae0a077 2085
dudmuck 0:8f0d0ae0a077 2086 // Store the time on air
dudmuck 0:8f0d0ae0a077 2087 McpsConfirm.TxTimeOnAir = TxTimeOnAir;
dudmuck 0:8f0d0ae0a077 2088 MlmeConfirm.TxTimeOnAir = TxTimeOnAir;
dudmuck 0:8f0d0ae0a077 2089
dudmuck 0:8f0d0ae0a077 2090
dudmuck 0:8f0d0ae0a077 2091 if( IsLoRaMacNetworkJoined == false )
dudmuck 0:8f0d0ae0a077 2092 {
dudmuck 0:8f0d0ae0a077 2093 JoinRequestTrials++;
dudmuck 1:53c30224eda8 2094 isr_printf("join %luhz try%u len%u\r\n", channel.Frequency, JoinRequestTrials, LoRaMacBufferPktLen);
dudmuck 0:8f0d0ae0a077 2095 }
dudmuck 0:8f0d0ae0a077 2096
dudmuck 0:8f0d0ae0a077 2097 /* anything not join request is sent at permitted time slot */
dudmuck 0:8f0d0ae0a077 2098 LoRaMacHeader_t* macHdr = (LoRaMacHeader_t*)&LoRaMacBuffer[0];
dudmuck 0:8f0d0ae0a077 2099 if (macHdr->Bits.MType == FRAME_TYPE_JOIN_REQ) {
dudmuck 0:8f0d0ae0a077 2100 // Send now
dudmuck 5:c108560af4c3 2101 Radio.SetTxConfig( MODEM_LORA, txPower, 0, 2, datarate, 1, 8, false, true, 0, 0, false, 3e3 );
dudmuck 0:8f0d0ae0a077 2102 Radio.Send( LoRaMacBuffer, LoRaMacBufferPktLen );
dudmuck 0:8f0d0ae0a077 2103
dudmuck 0:8f0d0ae0a077 2104 LoRaMacState |= LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 2105
dudmuck 0:8f0d0ae0a077 2106 // Starts the MAC layer status check timer
dudmuck 0:8f0d0ae0a077 2107 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 0:8f0d0ae0a077 2108 } else if (BeaconCtx.have_beacon) {
dudmuck 0:8f0d0ae0a077 2109 /* find now ping slot */
dudmuck 0:8f0d0ae0a077 2110 unsigned int target_us, now_us = lp_timer.read_us();
dudmuck 0:8f0d0ae0a077 2111 int us_since_beacon_start = now_us - BeaconCtx.LastBeaconStart_us;
dudmuck 0:8f0d0ae0a077 2112 int use_slot = BeaconCtx.tx_slot_offset;
dudmuck 0:8f0d0ae0a077 2113 int now_slot = (us_since_beacon_start - BEACON_RESERVED_us) / 30000;
dudmuck 0:8f0d0ae0a077 2114 int use_slot_us;
dudmuck 0:8f0d0ae0a077 2115
dudmuck 0:8f0d0ae0a077 2116 while (use_slot < now_slot)
dudmuck 0:8f0d0ae0a077 2117 use_slot += BeaconCtx.periodicity_slots;
dudmuck 0:8f0d0ae0a077 2118
dudmuck 0:8f0d0ae0a077 2119 use_slot_us = (use_slot * 30000);
dudmuck 0:8f0d0ae0a077 2120
dudmuck 0:8f0d0ae0a077 2121 #ifdef TX_DEBUG
dudmuck 1:53c30224eda8 2122 isr_printf("now_slot:%d, to-guard:%u use_slot:%u ", now_slot, BeaconCtx.next_beacon_expected_us - use_slot_us, use_slot);
dudmuck 0:8f0d0ae0a077 2123 #endif
dudmuck 0:8f0d0ae0a077 2124 if ((BeaconCtx.next_beacon_expected_us - use_slot_us) > BEACON_GUARD_us) {
dudmuck 0:8f0d0ae0a077 2125 target_us = (use_slot * 30000) + BEACON_RESERVED_us;
dudmuck 0:8f0d0ae0a077 2126 tx_timeout.attach_us(&send_callback, target_us - us_since_beacon_start);
dudmuck 0:8f0d0ae0a077 2127 #ifdef TX_DEBUG
dudmuck 1:53c30224eda8 2128 isr_printf(" : tx in %uus\r\n", target_us - us_since_beacon_start);
dudmuck 0:8f0d0ae0a077 2129 #endif
dudmuck 0:8f0d0ae0a077 2130 } else {
dudmuck 5:c108560af4c3 2131 //#ifdef TX_DEBUG
dudmuck 5:c108560af4c3 2132 isr_printf("sf-busy\r\n");
dudmuck 5:c108560af4c3 2133 //#endif
dudmuck 0:8f0d0ae0a077 2134 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2135 }
dudmuck 0:8f0d0ae0a077 2136
dudmuck 0:8f0d0ae0a077 2137 LoRaMacState |= LORAMAC_TX_SCHED;
dudmuck 0:8f0d0ae0a077 2138 } else {
dudmuck 1:53c30224eda8 2139 isr_printf("dropped tx\r\n");
dudmuck 0:8f0d0ae0a077 2140 return LORAMAC_STATUS_SERVICE_UNKNOWN; // TODO use correct failure
dudmuck 0:8f0d0ae0a077 2141 }
dudmuck 0:8f0d0ae0a077 2142
dudmuck 0:8f0d0ae0a077 2143 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2144 }
dudmuck 0:8f0d0ae0a077 2145
dudmuck 0:8f0d0ae0a077 2146 LoRaMacStatus_t SetTxContinuousWave( uint16_t timeout )
dudmuck 0:8f0d0ae0a077 2147 {
dudmuck 0:8f0d0ae0a077 2148 int8_t txPowerIndex = 0;
dudmuck 0:8f0d0ae0a077 2149 int8_t txPower = 0;
dudmuck 0:8f0d0ae0a077 2150
dudmuck 0:8f0d0ae0a077 2151 txPowerIndex = LoRaMacParams.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2152 txPower = TxPowers[txPowerIndex];
dudmuck 0:8f0d0ae0a077 2153
dudmuck 0:8f0d0ae0a077 2154 // Starts the MAC layer status check timer
dudmuck 0:8f0d0ae0a077 2155 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 0:8f0d0ae0a077 2156
dudmuck 0:8f0d0ae0a077 2157 Radio.SetTxContinuousWave( Channels[Channel].Frequency, txPower, timeout );
dudmuck 0:8f0d0ae0a077 2158
dudmuck 0:8f0d0ae0a077 2159 LoRaMacState |= LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 2160
dudmuck 0:8f0d0ae0a077 2161 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2162 }
dudmuck 0:8f0d0ae0a077 2163
dudmuck 0:8f0d0ae0a077 2164 LoRaMacStatus_t SetTxContinuousWave1( uint16_t timeout, uint32_t frequency, uint8_t power )
dudmuck 0:8f0d0ae0a077 2165 {
dudmuck 0:8f0d0ae0a077 2166 Radio.SetTxContinuousWave( frequency, power, timeout );
dudmuck 0:8f0d0ae0a077 2167
dudmuck 0:8f0d0ae0a077 2168 // Starts the MAC layer status check timer
dudmuck 0:8f0d0ae0a077 2169 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 0:8f0d0ae0a077 2170
dudmuck 0:8f0d0ae0a077 2171 LoRaMacState |= LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 2172
dudmuck 0:8f0d0ae0a077 2173 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2174 }
dudmuck 0:8f0d0ae0a077 2175
dudmuck 0:8f0d0ae0a077 2176 void seconds()
dudmuck 0:8f0d0ae0a077 2177 {
dudmuck 1:53c30224eda8 2178 isr_printf("second\r\n");
dudmuck 0:8f0d0ae0a077 2179 }
dudmuck 0:8f0d0ae0a077 2180
dudmuck 0:8f0d0ae0a077 2181 LoRaMacStatus_t LoRaMacInitialization( LoRaMacPrimitives_t *primitives, LoRaMacCallback_t *callbacks )
dudmuck 0:8f0d0ae0a077 2182 {
dudmuck 0:8f0d0ae0a077 2183 if( primitives == NULL )
dudmuck 0:8f0d0ae0a077 2184 {
dudmuck 0:8f0d0ae0a077 2185 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2186 }
dudmuck 0:8f0d0ae0a077 2187
dudmuck 0:8f0d0ae0a077 2188 if( ( primitives->MacMcpsConfirm == NULL ) ||
dudmuck 0:8f0d0ae0a077 2189 ( primitives->MacMcpsIndication == NULL ) ||
dudmuck 0:8f0d0ae0a077 2190 ( primitives->MacMlmeConfirm == NULL ) )
dudmuck 0:8f0d0ae0a077 2191 {
dudmuck 0:8f0d0ae0a077 2192 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2193 }
dudmuck 0:8f0d0ae0a077 2194
dudmuck 0:8f0d0ae0a077 2195 LoRaMacPrimitives = primitives;
dudmuck 0:8f0d0ae0a077 2196 LoRaMacCallbacks = callbacks;
dudmuck 0:8f0d0ae0a077 2197
dudmuck 0:8f0d0ae0a077 2198 LoRaMacFlags.Value = 0;
dudmuck 0:8f0d0ae0a077 2199
dudmuck 0:8f0d0ae0a077 2200 LoRaMacDeviceClass = CLASS_A;
dudmuck 0:8f0d0ae0a077 2201 LoRaMacState = LORAMAC_IDLE;
dudmuck 0:8f0d0ae0a077 2202
dudmuck 0:8f0d0ae0a077 2203 JoinRequestTrials = 0;
dudmuck 0:8f0d0ae0a077 2204 MaxJoinRequestTrials = 255;
dudmuck 0:8f0d0ae0a077 2205
dudmuck 0:8f0d0ae0a077 2206
dudmuck 0:8f0d0ae0a077 2207 // Reset to defaults
dudmuck 0:8f0d0ae0a077 2208 LoRaMacParamsDefaults.ChannelsTxPower = LORAMAC_DEFAULT_TX_POWER;
dudmuck 0:8f0d0ae0a077 2209 LoRaMacParamsDefaults.ChannelsDatarate_fixed = LORAMAC_DEFAULT_DATARATE;
dudmuck 0:8f0d0ae0a077 2210
dudmuck 0:8f0d0ae0a077 2211 LoRaMacParamsDefaults.SystemMaxRxError = 10;
dudmuck 0:8f0d0ae0a077 2212 LoRaMacParamsDefaults.MinRxSymbols = 6; // TODO XXX increase
dudmuck 0:8f0d0ae0a077 2213 LoRaMacParamsDefaults.MaxRxWindow = MAX_RX_WINDOW;
dudmuck 0:8f0d0ae0a077 2214
dudmuck 0:8f0d0ae0a077 2215 LoRaMacParamsDefaults.ReceiveDelay_us = RECEIVE_DELAY_us;
dudmuck 0:8f0d0ae0a077 2216 LoRaMacParamsDefaults.JoinAcceptDelay_us = JOIN_ACCEPT_DELAY_us;
dudmuck 0:8f0d0ae0a077 2217
dudmuck 0:8f0d0ae0a077 2218 LoRaMacParamsDefaults.ChannelsNbRep = 1;
dudmuck 0:8f0d0ae0a077 2219 LoRaMacParamsDefaults.Rx1DrOffset = 0;
dudmuck 0:8f0d0ae0a077 2220
dudmuck 0:8f0d0ae0a077 2221
dudmuck 0:8f0d0ae0a077 2222 #if defined(USE_BAND_915_SINGLE)
dudmuck 0:8f0d0ae0a077 2223 // 500 kHz channels
dudmuck 0:8f0d0ae0a077 2224 for( uint8_t i = 0; i < LORA_MAX_NB_CHANNELS; i++ )
dudmuck 0:8f0d0ae0a077 2225 {
dudmuck 0:8f0d0ae0a077 2226 Channels[i].Frequency = LORAMAC_FIRST_CHANNEL + (i * LORAMAC_STEPWIDTH_CHANNEL);
dudmuck 0:8f0d0ae0a077 2227 Channels[i].DrRange.Value = ( DR_13 << 4 ) | DR_8;
dudmuck 0:8f0d0ae0a077 2228 Channels[i].Band = 0;
dudmuck 0:8f0d0ae0a077 2229 }
dudmuck 0:8f0d0ae0a077 2230 #endif
dudmuck 0:8f0d0ae0a077 2231
dudmuck 0:8f0d0ae0a077 2232 // Init parameters which are not set in function ResetMacParameters
dudmuck 0:8f0d0ae0a077 2233 LoRaMacParams.SystemMaxRxError = LoRaMacParamsDefaults.SystemMaxRxError;
dudmuck 0:8f0d0ae0a077 2234 LoRaMacParams.MinRxSymbols = LoRaMacParamsDefaults.MinRxSymbols;
dudmuck 0:8f0d0ae0a077 2235 LoRaMacParams.MaxRxWindow = LoRaMacParamsDefaults.MaxRxWindow;
dudmuck 0:8f0d0ae0a077 2236 LoRaMacParams.ReceiveDelay_us = LoRaMacParamsDefaults.ReceiveDelay_us;
dudmuck 0:8f0d0ae0a077 2237 LoRaMacParams.JoinAcceptDelay_us = LoRaMacParamsDefaults.JoinAcceptDelay_us;
dudmuck 0:8f0d0ae0a077 2238 LoRaMacParams.ChannelsNbRep = LoRaMacParamsDefaults.ChannelsNbRep;
dudmuck 0:8f0d0ae0a077 2239
dudmuck 0:8f0d0ae0a077 2240 ResetMacParameters( );
dudmuck 0:8f0d0ae0a077 2241
dudmuck 0:8f0d0ae0a077 2242 // Initialize Radio driver
dudmuck 0:8f0d0ae0a077 2243 RadioEvents.TxDone = OnRadioTxDone;
dudmuck 0:8f0d0ae0a077 2244 RadioEvents.RxDone = OnRadioRxDone;
dudmuck 0:8f0d0ae0a077 2245 RadioEvents.RxError = OnRadioRxError;
dudmuck 0:8f0d0ae0a077 2246 RadioEvents.TxTimeout = OnRadioTxTimeout;
dudmuck 0:8f0d0ae0a077 2247 RadioEvents.RxTimeout = OnRadioRxTimeout;
dudmuck 0:8f0d0ae0a077 2248 Radio.Init( &RadioEvents );
dudmuck 0:8f0d0ae0a077 2249
dudmuck 0:8f0d0ae0a077 2250 // Random seed initialization
dudmuck 0:8f0d0ae0a077 2251 srand1( Radio.Random( ) );
dudmuck 0:8f0d0ae0a077 2252
dudmuck 0:8f0d0ae0a077 2253 PublicNetwork = true;
dudmuck 0:8f0d0ae0a077 2254 Radio.SetPublicNetwork( PublicNetwork );
dudmuck 0:8f0d0ae0a077 2255 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 2256
dudmuck 0:8f0d0ae0a077 2257 lp_timer.start();
dudmuck 0:8f0d0ae0a077 2258
dudmuck 0:8f0d0ae0a077 2259 RxWindowsParam = ComputeRxWindowParameters(LORAMAC_DEFAULT_DATARATE, LoRaMacParams.SystemMaxRxError);
dudmuck 0:8f0d0ae0a077 2260
dudmuck 0:8f0d0ae0a077 2261 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2262 }
dudmuck 0:8f0d0ae0a077 2263
dudmuck 0:8f0d0ae0a077 2264 LoRaMacStatus_t LoRaMacQueryTxPossible( uint8_t size, LoRaMacTxInfo_t* txInfo )
dudmuck 0:8f0d0ae0a077 2265 {
dudmuck 0:8f0d0ae0a077 2266 uint8_t fOptLen = MacCommandsBufferIndex + MacCommandsBufferToRepeatIndex;
dudmuck 0:8f0d0ae0a077 2267
dudmuck 0:8f0d0ae0a077 2268 if( txInfo == NULL )
dudmuck 0:8f0d0ae0a077 2269 {
dudmuck 0:8f0d0ae0a077 2270 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2271 }
dudmuck 0:8f0d0ae0a077 2272
dudmuck 0:8f0d0ae0a077 2273 txInfo->CurrentPayloadSize = 255;
dudmuck 0:8f0d0ae0a077 2274
dudmuck 0:8f0d0ae0a077 2275 if( txInfo->CurrentPayloadSize >= fOptLen )
dudmuck 0:8f0d0ae0a077 2276 {
dudmuck 0:8f0d0ae0a077 2277 txInfo->MaxPossiblePayload = txInfo->CurrentPayloadSize - fOptLen;
dudmuck 0:8f0d0ae0a077 2278 }
dudmuck 0:8f0d0ae0a077 2279 else
dudmuck 0:8f0d0ae0a077 2280 {
dudmuck 0:8f0d0ae0a077 2281 return LORAMAC_STATUS_MAC_CMD_LENGTH_ERROR;
dudmuck 0:8f0d0ae0a077 2282 }
dudmuck 0:8f0d0ae0a077 2283
dudmuck 0:8f0d0ae0a077 2284 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2285 }
dudmuck 0:8f0d0ae0a077 2286
dudmuck 0:8f0d0ae0a077 2287 LoRaMacStatus_t LoRaMacMibGetRequestConfirm( MibRequestConfirm_t *mibGet )
dudmuck 0:8f0d0ae0a077 2288 {
dudmuck 0:8f0d0ae0a077 2289 LoRaMacStatus_t status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2290
dudmuck 0:8f0d0ae0a077 2291 if( mibGet == NULL )
dudmuck 0:8f0d0ae0a077 2292 {
dudmuck 0:8f0d0ae0a077 2293 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2294 }
dudmuck 0:8f0d0ae0a077 2295
dudmuck 0:8f0d0ae0a077 2296 switch( mibGet->Type )
dudmuck 0:8f0d0ae0a077 2297 {
dudmuck 0:8f0d0ae0a077 2298 case MIB_DEVICE_CLASS:
dudmuck 0:8f0d0ae0a077 2299 {
dudmuck 0:8f0d0ae0a077 2300 mibGet->Param.Class = LoRaMacDeviceClass;
dudmuck 0:8f0d0ae0a077 2301 break;
dudmuck 0:8f0d0ae0a077 2302 }
dudmuck 0:8f0d0ae0a077 2303 case MIB_NETWORK_JOINED:
dudmuck 0:8f0d0ae0a077 2304 {
dudmuck 0:8f0d0ae0a077 2305 mibGet->Param.IsNetworkJoined = IsLoRaMacNetworkJoined;
dudmuck 0:8f0d0ae0a077 2306 break;
dudmuck 0:8f0d0ae0a077 2307 }
dudmuck 0:8f0d0ae0a077 2308 case MIB_NET_ID:
dudmuck 0:8f0d0ae0a077 2309 {
dudmuck 0:8f0d0ae0a077 2310 mibGet->Param.NetID = LoRaMacNetID;
dudmuck 0:8f0d0ae0a077 2311 break;
dudmuck 0:8f0d0ae0a077 2312 }
dudmuck 0:8f0d0ae0a077 2313 case MIB_DEV_ADDR:
dudmuck 0:8f0d0ae0a077 2314 {
dudmuck 0:8f0d0ae0a077 2315 mibGet->Param.DevAddr = LoRaMacDevAddr;
dudmuck 0:8f0d0ae0a077 2316 break;
dudmuck 0:8f0d0ae0a077 2317 }
dudmuck 0:8f0d0ae0a077 2318 case MIB_NWK_SKEY:
dudmuck 0:8f0d0ae0a077 2319 {
dudmuck 0:8f0d0ae0a077 2320 mibGet->Param.NwkSKey = LoRaMacNwkSKey;
dudmuck 0:8f0d0ae0a077 2321 break;
dudmuck 0:8f0d0ae0a077 2322 }
dudmuck 0:8f0d0ae0a077 2323 case MIB_APP_SKEY:
dudmuck 0:8f0d0ae0a077 2324 {
dudmuck 0:8f0d0ae0a077 2325 mibGet->Param.AppSKey = LoRaMacAppSKey;
dudmuck 0:8f0d0ae0a077 2326 break;
dudmuck 0:8f0d0ae0a077 2327 }
dudmuck 0:8f0d0ae0a077 2328 case MIB_PUBLIC_NETWORK:
dudmuck 0:8f0d0ae0a077 2329 {
dudmuck 0:8f0d0ae0a077 2330 mibGet->Param.EnablePublicNetwork = PublicNetwork;
dudmuck 0:8f0d0ae0a077 2331 break;
dudmuck 0:8f0d0ae0a077 2332 }
dudmuck 0:8f0d0ae0a077 2333 case MIB_CHANNELS_NB_REP:
dudmuck 0:8f0d0ae0a077 2334 {
dudmuck 0:8f0d0ae0a077 2335 mibGet->Param.ChannelNbRep = LoRaMacParams.ChannelsNbRep;
dudmuck 0:8f0d0ae0a077 2336 break;
dudmuck 0:8f0d0ae0a077 2337 }
dudmuck 0:8f0d0ae0a077 2338 case MIB_MAX_RX_WINDOW_DURATION:
dudmuck 0:8f0d0ae0a077 2339 {
dudmuck 0:8f0d0ae0a077 2340 mibGet->Param.MaxRxWindow = LoRaMacParams.MaxRxWindow;
dudmuck 0:8f0d0ae0a077 2341 break;
dudmuck 0:8f0d0ae0a077 2342 }
dudmuck 0:8f0d0ae0a077 2343 case MIB_CHANNELS_DEFAULT_TX_POWER:
dudmuck 0:8f0d0ae0a077 2344 {
dudmuck 0:8f0d0ae0a077 2345 mibGet->Param.ChannelsDefaultTxPower = LoRaMacParamsDefaults.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2346 break;
dudmuck 0:8f0d0ae0a077 2347 }
dudmuck 0:8f0d0ae0a077 2348 case MIB_CHANNELS_TX_POWER:
dudmuck 0:8f0d0ae0a077 2349 {
dudmuck 0:8f0d0ae0a077 2350 mibGet->Param.ChannelsTxPower = LoRaMacParams.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2351 break;
dudmuck 0:8f0d0ae0a077 2352 }
dudmuck 0:8f0d0ae0a077 2353 case MIB_UPLINK_COUNTER:
dudmuck 0:8f0d0ae0a077 2354 {
dudmuck 0:8f0d0ae0a077 2355 mibGet->Param.UpLinkCounter = UpLinkCounter;
dudmuck 0:8f0d0ae0a077 2356 break;
dudmuck 0:8f0d0ae0a077 2357 }
dudmuck 0:8f0d0ae0a077 2358 case MIB_DOWNLINK_COUNTER:
dudmuck 0:8f0d0ae0a077 2359 {
dudmuck 0:8f0d0ae0a077 2360 mibGet->Param.DownLinkCounter = DownLinkCounter;
dudmuck 0:8f0d0ae0a077 2361 break;
dudmuck 0:8f0d0ae0a077 2362 }
dudmuck 0:8f0d0ae0a077 2363 case MIB_MULTICAST_CHANNEL:
dudmuck 0:8f0d0ae0a077 2364 {
dudmuck 0:8f0d0ae0a077 2365 mibGet->Param.MulticastList = MulticastChannels;
dudmuck 0:8f0d0ae0a077 2366 break;
dudmuck 0:8f0d0ae0a077 2367 }
dudmuck 0:8f0d0ae0a077 2368 case MIB_SYSTEM_MAX_RX_ERROR:
dudmuck 0:8f0d0ae0a077 2369 {
dudmuck 0:8f0d0ae0a077 2370 mibGet->Param.SystemMaxRxError = LoRaMacParams.SystemMaxRxError;
dudmuck 0:8f0d0ae0a077 2371 break;
dudmuck 0:8f0d0ae0a077 2372 }
dudmuck 0:8f0d0ae0a077 2373 case MIB_MIN_RX_SYMBOLS:
dudmuck 0:8f0d0ae0a077 2374 {
dudmuck 0:8f0d0ae0a077 2375 mibGet->Param.MinRxSymbols = LoRaMacParams.MinRxSymbols;
dudmuck 0:8f0d0ae0a077 2376 break;
dudmuck 0:8f0d0ae0a077 2377 }
dudmuck 0:8f0d0ae0a077 2378 default:
dudmuck 0:8f0d0ae0a077 2379 status = LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2380 break;
dudmuck 0:8f0d0ae0a077 2381 }
dudmuck 0:8f0d0ae0a077 2382
dudmuck 0:8f0d0ae0a077 2383 return status;
dudmuck 0:8f0d0ae0a077 2384 }
dudmuck 0:8f0d0ae0a077 2385
dudmuck 0:8f0d0ae0a077 2386 LoRaMacStatus_t LoRaMacMibSetRequestConfirm( MibRequestConfirm_t *mibSet )
dudmuck 0:8f0d0ae0a077 2387 {
dudmuck 0:8f0d0ae0a077 2388 LoRaMacStatus_t status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2389
dudmuck 0:8f0d0ae0a077 2390 if( mibSet == NULL )
dudmuck 0:8f0d0ae0a077 2391 {
dudmuck 0:8f0d0ae0a077 2392 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2393 }
dudmuck 0:8f0d0ae0a077 2394 if( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING )
dudmuck 0:8f0d0ae0a077 2395 {
dudmuck 0:8f0d0ae0a077 2396 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2397 }
dudmuck 0:8f0d0ae0a077 2398
dudmuck 0:8f0d0ae0a077 2399 switch( mibSet->Type )
dudmuck 0:8f0d0ae0a077 2400 {
dudmuck 0:8f0d0ae0a077 2401 case MIB_DEVICE_CLASS:
dudmuck 0:8f0d0ae0a077 2402 {
dudmuck 0:8f0d0ae0a077 2403 LoRaMacDeviceClass = mibSet->Param.Class;
dudmuck 0:8f0d0ae0a077 2404 switch( LoRaMacDeviceClass )
dudmuck 0:8f0d0ae0a077 2405 {
dudmuck 0:8f0d0ae0a077 2406 case CLASS_A:
dudmuck 0:8f0d0ae0a077 2407 {
dudmuck 0:8f0d0ae0a077 2408 // Set the radio into sleep to setup a defined state
dudmuck 0:8f0d0ae0a077 2409 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 2410 break;
dudmuck 0:8f0d0ae0a077 2411 }
dudmuck 0:8f0d0ae0a077 2412 case CLASS_B:
dudmuck 0:8f0d0ae0a077 2413 {
dudmuck 0:8f0d0ae0a077 2414 break;
dudmuck 0:8f0d0ae0a077 2415 }
dudmuck 0:8f0d0ae0a077 2416 case CLASS_D:
dudmuck 1:53c30224eda8 2417 isr_printf("TODO MIB_DEVICE_CLASS:D\r\n");
dudmuck 0:8f0d0ae0a077 2418 break;
dudmuck 0:8f0d0ae0a077 2419 }
dudmuck 0:8f0d0ae0a077 2420 break;
dudmuck 0:8f0d0ae0a077 2421 }
dudmuck 0:8f0d0ae0a077 2422 case MIB_NETWORK_JOINED:
dudmuck 0:8f0d0ae0a077 2423 {
dudmuck 0:8f0d0ae0a077 2424 IsLoRaMacNetworkJoined = mibSet->Param.IsNetworkJoined;
dudmuck 0:8f0d0ae0a077 2425 break;
dudmuck 0:8f0d0ae0a077 2426 }
dudmuck 0:8f0d0ae0a077 2427 case MIB_NET_ID:
dudmuck 0:8f0d0ae0a077 2428 {
dudmuck 0:8f0d0ae0a077 2429 LoRaMacNetID = mibSet->Param.NetID;
dudmuck 0:8f0d0ae0a077 2430 break;
dudmuck 0:8f0d0ae0a077 2431 }
dudmuck 0:8f0d0ae0a077 2432 case MIB_DEV_ADDR:
dudmuck 0:8f0d0ae0a077 2433 {
dudmuck 0:8f0d0ae0a077 2434 LoRaMacDevAddr = mibSet->Param.DevAddr;
dudmuck 0:8f0d0ae0a077 2435 break;
dudmuck 0:8f0d0ae0a077 2436 }
dudmuck 0:8f0d0ae0a077 2437 case MIB_NWK_SKEY:
dudmuck 0:8f0d0ae0a077 2438 {
dudmuck 0:8f0d0ae0a077 2439 if( mibSet->Param.NwkSKey != NULL )
dudmuck 0:8f0d0ae0a077 2440 {
dudmuck 0:8f0d0ae0a077 2441 memcpy1( LoRaMacNwkSKey, mibSet->Param.NwkSKey,
dudmuck 0:8f0d0ae0a077 2442 sizeof( LoRaMacNwkSKey ) );
dudmuck 0:8f0d0ae0a077 2443 }
dudmuck 0:8f0d0ae0a077 2444 else
dudmuck 0:8f0d0ae0a077 2445 {
dudmuck 0:8f0d0ae0a077 2446 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2447 }
dudmuck 0:8f0d0ae0a077 2448 break;
dudmuck 0:8f0d0ae0a077 2449 }
dudmuck 0:8f0d0ae0a077 2450 case MIB_APP_SKEY:
dudmuck 0:8f0d0ae0a077 2451 {
dudmuck 0:8f0d0ae0a077 2452 if( mibSet->Param.AppSKey != NULL )
dudmuck 0:8f0d0ae0a077 2453 {
dudmuck 0:8f0d0ae0a077 2454 memcpy1( LoRaMacAppSKey, mibSet->Param.AppSKey,
dudmuck 0:8f0d0ae0a077 2455 sizeof( LoRaMacAppSKey ) );
dudmuck 0:8f0d0ae0a077 2456 }
dudmuck 0:8f0d0ae0a077 2457 else
dudmuck 0:8f0d0ae0a077 2458 {
dudmuck 0:8f0d0ae0a077 2459 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2460 }
dudmuck 0:8f0d0ae0a077 2461 break;
dudmuck 0:8f0d0ae0a077 2462 }
dudmuck 0:8f0d0ae0a077 2463 case MIB_PUBLIC_NETWORK:
dudmuck 0:8f0d0ae0a077 2464 {
dudmuck 0:8f0d0ae0a077 2465 PublicNetwork = mibSet->Param.EnablePublicNetwork;
dudmuck 0:8f0d0ae0a077 2466 Radio.SetPublicNetwork( PublicNetwork );
dudmuck 0:8f0d0ae0a077 2467 break;
dudmuck 0:8f0d0ae0a077 2468 }
dudmuck 0:8f0d0ae0a077 2469 case MIB_CHANNELS_NB_REP:
dudmuck 0:8f0d0ae0a077 2470 {
dudmuck 0:8f0d0ae0a077 2471 if( ( mibSet->Param.ChannelNbRep >= 1 ) &&
dudmuck 0:8f0d0ae0a077 2472 ( mibSet->Param.ChannelNbRep <= 15 ) )
dudmuck 0:8f0d0ae0a077 2473 {
dudmuck 0:8f0d0ae0a077 2474 LoRaMacParams.ChannelsNbRep = mibSet->Param.ChannelNbRep;
dudmuck 0:8f0d0ae0a077 2475 }
dudmuck 0:8f0d0ae0a077 2476 else
dudmuck 0:8f0d0ae0a077 2477 {
dudmuck 0:8f0d0ae0a077 2478 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2479 }
dudmuck 0:8f0d0ae0a077 2480 break;
dudmuck 0:8f0d0ae0a077 2481 }
dudmuck 0:8f0d0ae0a077 2482 case MIB_MAX_RX_WINDOW_DURATION:
dudmuck 0:8f0d0ae0a077 2483 {
dudmuck 0:8f0d0ae0a077 2484 LoRaMacParams.MaxRxWindow = mibSet->Param.MaxRxWindow;
dudmuck 0:8f0d0ae0a077 2485 break;
dudmuck 0:8f0d0ae0a077 2486 }
dudmuck 0:8f0d0ae0a077 2487 case MIB_CHANNELS_DEFAULT_TX_POWER:
dudmuck 0:8f0d0ae0a077 2488 {
dudmuck 0:8f0d0ae0a077 2489 if( ValueInRange( mibSet->Param.ChannelsDefaultTxPower,
dudmuck 0:8f0d0ae0a077 2490 LORAMAC_MAX_TX_POWER, LORAMAC_MIN_TX_POWER ) )
dudmuck 0:8f0d0ae0a077 2491 {
dudmuck 0:8f0d0ae0a077 2492 LoRaMacParamsDefaults.ChannelsTxPower = mibSet->Param.ChannelsDefaultTxPower;
dudmuck 0:8f0d0ae0a077 2493 }
dudmuck 0:8f0d0ae0a077 2494 else
dudmuck 0:8f0d0ae0a077 2495 {
dudmuck 0:8f0d0ae0a077 2496 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2497 }
dudmuck 0:8f0d0ae0a077 2498 break;
dudmuck 0:8f0d0ae0a077 2499 }
dudmuck 0:8f0d0ae0a077 2500 case MIB_CHANNELS_TX_POWER:
dudmuck 0:8f0d0ae0a077 2501 {
dudmuck 0:8f0d0ae0a077 2502 if( ValueInRange( mibSet->Param.ChannelsTxPower,
dudmuck 0:8f0d0ae0a077 2503 LORAMAC_MAX_TX_POWER, LORAMAC_MIN_TX_POWER ) )
dudmuck 0:8f0d0ae0a077 2504 {
dudmuck 0:8f0d0ae0a077 2505 LoRaMacParams.ChannelsTxPower = mibSet->Param.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2506 }
dudmuck 0:8f0d0ae0a077 2507 else
dudmuck 0:8f0d0ae0a077 2508 {
dudmuck 0:8f0d0ae0a077 2509 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2510 }
dudmuck 0:8f0d0ae0a077 2511 break;
dudmuck 0:8f0d0ae0a077 2512 }
dudmuck 0:8f0d0ae0a077 2513 case MIB_UPLINK_COUNTER:
dudmuck 0:8f0d0ae0a077 2514 {
dudmuck 0:8f0d0ae0a077 2515 UpLinkCounter = mibSet->Param.UpLinkCounter;
dudmuck 0:8f0d0ae0a077 2516 break;
dudmuck 0:8f0d0ae0a077 2517 }
dudmuck 0:8f0d0ae0a077 2518 case MIB_DOWNLINK_COUNTER:
dudmuck 0:8f0d0ae0a077 2519 {
dudmuck 0:8f0d0ae0a077 2520 DownLinkCounter = mibSet->Param.DownLinkCounter;
dudmuck 0:8f0d0ae0a077 2521 break;
dudmuck 0:8f0d0ae0a077 2522 }
dudmuck 0:8f0d0ae0a077 2523 case MIB_SYSTEM_MAX_RX_ERROR:
dudmuck 0:8f0d0ae0a077 2524 {
dudmuck 0:8f0d0ae0a077 2525 LoRaMacParams.SystemMaxRxError = LoRaMacParamsDefaults.SystemMaxRxError = mibSet->Param.SystemMaxRxError;
dudmuck 0:8f0d0ae0a077 2526 break;
dudmuck 0:8f0d0ae0a077 2527 }
dudmuck 0:8f0d0ae0a077 2528 case MIB_MIN_RX_SYMBOLS:
dudmuck 0:8f0d0ae0a077 2529 {
dudmuck 0:8f0d0ae0a077 2530 LoRaMacParams.MinRxSymbols = LoRaMacParamsDefaults.MinRxSymbols = mibSet->Param.MinRxSymbols;
dudmuck 0:8f0d0ae0a077 2531 break;
dudmuck 0:8f0d0ae0a077 2532 }
dudmuck 0:8f0d0ae0a077 2533 default:
dudmuck 0:8f0d0ae0a077 2534 status = LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2535 break;
dudmuck 0:8f0d0ae0a077 2536 }
dudmuck 0:8f0d0ae0a077 2537
dudmuck 0:8f0d0ae0a077 2538 return status;
dudmuck 0:8f0d0ae0a077 2539 }
dudmuck 0:8f0d0ae0a077 2540
dudmuck 0:8f0d0ae0a077 2541 LoRaMacStatus_t LoRaMacMulticastChannelLink( MulticastParams_t *channelParam )
dudmuck 0:8f0d0ae0a077 2542 {
dudmuck 0:8f0d0ae0a077 2543 if( channelParam == NULL )
dudmuck 0:8f0d0ae0a077 2544 {
dudmuck 0:8f0d0ae0a077 2545 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2546 }
dudmuck 0:8f0d0ae0a077 2547 if( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING )
dudmuck 0:8f0d0ae0a077 2548 {
dudmuck 0:8f0d0ae0a077 2549 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2550 }
dudmuck 0:8f0d0ae0a077 2551
dudmuck 0:8f0d0ae0a077 2552 // Reset downlink counter
dudmuck 0:8f0d0ae0a077 2553 channelParam->DownLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 2554
dudmuck 0:8f0d0ae0a077 2555 if( MulticastChannels == NULL )
dudmuck 0:8f0d0ae0a077 2556 {
dudmuck 0:8f0d0ae0a077 2557 // New node is the fist element
dudmuck 0:8f0d0ae0a077 2558 MulticastChannels = channelParam;
dudmuck 0:8f0d0ae0a077 2559 }
dudmuck 0:8f0d0ae0a077 2560 else
dudmuck 0:8f0d0ae0a077 2561 {
dudmuck 0:8f0d0ae0a077 2562 MulticastParams_t *cur = MulticastChannels;
dudmuck 0:8f0d0ae0a077 2563
dudmuck 0:8f0d0ae0a077 2564 // Search the last node in the list
dudmuck 0:8f0d0ae0a077 2565 while( cur->Next != NULL )
dudmuck 0:8f0d0ae0a077 2566 {
dudmuck 0:8f0d0ae0a077 2567 cur = cur->Next;
dudmuck 0:8f0d0ae0a077 2568 }
dudmuck 0:8f0d0ae0a077 2569 // This function always finds the last node
dudmuck 0:8f0d0ae0a077 2570 cur->Next = channelParam;
dudmuck 0:8f0d0ae0a077 2571 }
dudmuck 0:8f0d0ae0a077 2572
dudmuck 0:8f0d0ae0a077 2573 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2574 }
dudmuck 0:8f0d0ae0a077 2575
dudmuck 0:8f0d0ae0a077 2576 LoRaMacStatus_t LoRaMacMulticastChannelUnlink( MulticastParams_t *channelParam )
dudmuck 0:8f0d0ae0a077 2577 {
dudmuck 0:8f0d0ae0a077 2578 if( channelParam == NULL )
dudmuck 0:8f0d0ae0a077 2579 {
dudmuck 0:8f0d0ae0a077 2580 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2581 }
dudmuck 0:8f0d0ae0a077 2582 if( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING )
dudmuck 0:8f0d0ae0a077 2583 {
dudmuck 0:8f0d0ae0a077 2584 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2585 }
dudmuck 0:8f0d0ae0a077 2586
dudmuck 0:8f0d0ae0a077 2587 if( MulticastChannels != NULL )
dudmuck 0:8f0d0ae0a077 2588 {
dudmuck 0:8f0d0ae0a077 2589 if( MulticastChannels == channelParam )
dudmuck 0:8f0d0ae0a077 2590 {
dudmuck 0:8f0d0ae0a077 2591 // First element
dudmuck 0:8f0d0ae0a077 2592 MulticastChannels = channelParam->Next;
dudmuck 0:8f0d0ae0a077 2593 }
dudmuck 0:8f0d0ae0a077 2594 else
dudmuck 0:8f0d0ae0a077 2595 {
dudmuck 0:8f0d0ae0a077 2596 MulticastParams_t *cur = MulticastChannels;
dudmuck 0:8f0d0ae0a077 2597
dudmuck 0:8f0d0ae0a077 2598 // Search the node in the list
dudmuck 0:8f0d0ae0a077 2599 while( cur->Next && cur->Next != channelParam )
dudmuck 0:8f0d0ae0a077 2600 {
dudmuck 0:8f0d0ae0a077 2601 cur = cur->Next;
dudmuck 0:8f0d0ae0a077 2602 }
dudmuck 0:8f0d0ae0a077 2603 // If we found the node, remove it
dudmuck 0:8f0d0ae0a077 2604 if( cur->Next )
dudmuck 0:8f0d0ae0a077 2605 {
dudmuck 0:8f0d0ae0a077 2606 cur->Next = channelParam->Next;
dudmuck 0:8f0d0ae0a077 2607 }
dudmuck 0:8f0d0ae0a077 2608 }
dudmuck 0:8f0d0ae0a077 2609 channelParam->Next = NULL;
dudmuck 0:8f0d0ae0a077 2610 }
dudmuck 0:8f0d0ae0a077 2611
dudmuck 0:8f0d0ae0a077 2612 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2613 }
dudmuck 0:8f0d0ae0a077 2614
dudmuck 0:8f0d0ae0a077 2615 LoRaMacStatus_t LoRaMacMlmeRequest( MlmeReq_t *mlmeRequest )
dudmuck 0:8f0d0ae0a077 2616 {
dudmuck 0:8f0d0ae0a077 2617 LoRaMacStatus_t status = LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2618 LoRaMacHeader_t macHdr;
dudmuck 0:8f0d0ae0a077 2619
dudmuck 0:8f0d0ae0a077 2620 if( mlmeRequest == NULL )
dudmuck 0:8f0d0ae0a077 2621 {
dudmuck 0:8f0d0ae0a077 2622 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2623 }
dudmuck 0:8f0d0ae0a077 2624 if( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING )
dudmuck 0:8f0d0ae0a077 2625 {
dudmuck 0:8f0d0ae0a077 2626 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2627 }
dudmuck 0:8f0d0ae0a077 2628
dudmuck 0:8f0d0ae0a077 2629 memset1( ( uint8_t* ) &MlmeConfirm, 0, sizeof( MlmeConfirm ) );
dudmuck 0:8f0d0ae0a077 2630
dudmuck 2:f2d9aa163652 2631 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_MLMEREQ;
dudmuck 0:8f0d0ae0a077 2632
dudmuck 0:8f0d0ae0a077 2633 switch( mlmeRequest->Type )
dudmuck 0:8f0d0ae0a077 2634 {
dudmuck 0:8f0d0ae0a077 2635 case MLME_JOIN:
dudmuck 0:8f0d0ae0a077 2636 {
dudmuck 0:8f0d0ae0a077 2637 if( ( LoRaMacState & LORAMAC_TX_DELAYED ) == LORAMAC_TX_DELAYED )
dudmuck 0:8f0d0ae0a077 2638 {
dudmuck 0:8f0d0ae0a077 2639 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2640 }
dudmuck 0:8f0d0ae0a077 2641
dudmuck 0:8f0d0ae0a077 2642 if( ( mlmeRequest->Req.Join.DevEui == NULL ) ||
dudmuck 0:8f0d0ae0a077 2643 ( mlmeRequest->Req.Join.AppEui == NULL ) ||
dudmuck 0:8f0d0ae0a077 2644 ( mlmeRequest->Req.Join.AppKey == NULL ) ||
dudmuck 0:8f0d0ae0a077 2645 ( mlmeRequest->Req.Join.NbTrials == 0 ) )
dudmuck 0:8f0d0ae0a077 2646 {
dudmuck 0:8f0d0ae0a077 2647 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2648 }
dudmuck 0:8f0d0ae0a077 2649
dudmuck 0:8f0d0ae0a077 2650 // Enables at least the usage of all datarates.
dudmuck 0:8f0d0ae0a077 2651 if( mlmeRequest->Req.Join.NbTrials < 48 )
dudmuck 0:8f0d0ae0a077 2652 {
dudmuck 0:8f0d0ae0a077 2653 mlmeRequest->Req.Join.NbTrials = 48;
dudmuck 0:8f0d0ae0a077 2654 }
dudmuck 0:8f0d0ae0a077 2655
dudmuck 0:8f0d0ae0a077 2656 LoRaMacFlags.Bits.MlmeReq = 1;
dudmuck 0:8f0d0ae0a077 2657 MlmeConfirm.MlmeRequest = mlmeRequest->Type;
dudmuck 0:8f0d0ae0a077 2658
dudmuck 0:8f0d0ae0a077 2659 LoRaMacDevEui = mlmeRequest->Req.Join.DevEui;
dudmuck 0:8f0d0ae0a077 2660 LoRaMacAppEui = mlmeRequest->Req.Join.AppEui;
dudmuck 0:8f0d0ae0a077 2661 LoRaMacAppKey = mlmeRequest->Req.Join.AppKey;
dudmuck 0:8f0d0ae0a077 2662 MaxJoinRequestTrials = mlmeRequest->Req.Join.NbTrials;
dudmuck 0:8f0d0ae0a077 2663
dudmuck 0:8f0d0ae0a077 2664 // Reset variable JoinRequestTrials
dudmuck 0:8f0d0ae0a077 2665 JoinRequestTrials = 0;
dudmuck 0:8f0d0ae0a077 2666
dudmuck 0:8f0d0ae0a077 2667 // Setup header information
dudmuck 0:8f0d0ae0a077 2668 macHdr.Value = 0;
dudmuck 0:8f0d0ae0a077 2669 macHdr.Bits.MType = FRAME_TYPE_JOIN_REQ;
dudmuck 0:8f0d0ae0a077 2670
dudmuck 0:8f0d0ae0a077 2671 ResetMacParameters( );
dudmuck 0:8f0d0ae0a077 2672
dudmuck 0:8f0d0ae0a077 2673 Channel = 0; // start with first channel
dudmuck 1:53c30224eda8 2674 isr_printf("<ch0>");
dudmuck 1:53c30224eda8 2675
dudmuck 1:53c30224eda8 2676 isr_printf("mlme-join-send ch%u\r\n", Channel);
dudmuck 0:8f0d0ae0a077 2677 status = Send( &macHdr, 0, NULL, 0 );
dudmuck 0:8f0d0ae0a077 2678 break;
dudmuck 0:8f0d0ae0a077 2679 }
dudmuck 0:8f0d0ae0a077 2680 case MLME_LINK_CHECK:
dudmuck 0:8f0d0ae0a077 2681 {
dudmuck 0:8f0d0ae0a077 2682 LoRaMacFlags.Bits.MlmeReq = 1;
dudmuck 0:8f0d0ae0a077 2683 // LoRaMac will send this command piggy-pack
dudmuck 0:8f0d0ae0a077 2684 MlmeConfirm.MlmeRequest = mlmeRequest->Type;
dudmuck 0:8f0d0ae0a077 2685
dudmuck 0:8f0d0ae0a077 2686 status = AddMacCommand( MOTE_MAC_LINK_CHECK_REQ, 0, 0 );
dudmuck 0:8f0d0ae0a077 2687 break;
dudmuck 0:8f0d0ae0a077 2688 }
dudmuck 0:8f0d0ae0a077 2689 case MLME_TXCW:
dudmuck 0:8f0d0ae0a077 2690 {
dudmuck 0:8f0d0ae0a077 2691 MlmeConfirm.MlmeRequest = mlmeRequest->Type;
dudmuck 0:8f0d0ae0a077 2692 LoRaMacFlags.Bits.MlmeReq = 1;
dudmuck 0:8f0d0ae0a077 2693 status = SetTxContinuousWave( mlmeRequest->Req.TxCw.Timeout );
dudmuck 0:8f0d0ae0a077 2694 break;
dudmuck 0:8f0d0ae0a077 2695 }
dudmuck 0:8f0d0ae0a077 2696 case MLME_TXCW_1:
dudmuck 0:8f0d0ae0a077 2697 {
dudmuck 0:8f0d0ae0a077 2698 MlmeConfirm.MlmeRequest = mlmeRequest->Type;
dudmuck 0:8f0d0ae0a077 2699 LoRaMacFlags.Bits.MlmeReq = 1;
dudmuck 0:8f0d0ae0a077 2700 status = SetTxContinuousWave1( mlmeRequest->Req.TxCw.Timeout, mlmeRequest->Req.TxCw.Frequency, mlmeRequest->Req.TxCw.Power );
dudmuck 0:8f0d0ae0a077 2701 break;
dudmuck 0:8f0d0ae0a077 2702 }
dudmuck 0:8f0d0ae0a077 2703 default:
dudmuck 0:8f0d0ae0a077 2704 break;
dudmuck 0:8f0d0ae0a077 2705 }
dudmuck 0:8f0d0ae0a077 2706
dudmuck 0:8f0d0ae0a077 2707 if( status != LORAMAC_STATUS_OK )
dudmuck 0:8f0d0ae0a077 2708 {
dudmuck 0:8f0d0ae0a077 2709 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 2710 LoRaMacFlags.Bits.MlmeReq = 0;
dudmuck 0:8f0d0ae0a077 2711 }
dudmuck 0:8f0d0ae0a077 2712
dudmuck 0:8f0d0ae0a077 2713 return status;
dudmuck 0:8f0d0ae0a077 2714 }
dudmuck 0:8f0d0ae0a077 2715
dudmuck 0:8f0d0ae0a077 2716 LoRaMacStatus_t LoRaMacMcpsRequest( McpsReq_t *mcpsRequest )
dudmuck 0:8f0d0ae0a077 2717 {
dudmuck 0:8f0d0ae0a077 2718 LoRaMacStatus_t status = LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2719 LoRaMacHeader_t macHdr;
dudmuck 0:8f0d0ae0a077 2720 uint8_t fPort = 0;
dudmuck 0:8f0d0ae0a077 2721 void *fBuffer;
dudmuck 0:8f0d0ae0a077 2722 uint16_t fBufferSize;
dudmuck 0:8f0d0ae0a077 2723 bool readyToSend = false;
dudmuck 0:8f0d0ae0a077 2724
dudmuck 0:8f0d0ae0a077 2725 if( mcpsRequest == NULL )
dudmuck 0:8f0d0ae0a077 2726 {
dudmuck 0:8f0d0ae0a077 2727 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2728 }
dudmuck 0:8f0d0ae0a077 2729 if( ( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING ) ||
dudmuck 0:8f0d0ae0a077 2730 ( ( LoRaMacState & LORAMAC_TX_DELAYED ) == LORAMAC_TX_DELAYED ) )
dudmuck 0:8f0d0ae0a077 2731 {
dudmuck 0:8f0d0ae0a077 2732 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2733 }
dudmuck 0:8f0d0ae0a077 2734
dudmuck 0:8f0d0ae0a077 2735 macHdr.Value = 0;
dudmuck 0:8f0d0ae0a077 2736 memset1 ( ( uint8_t* ) &McpsConfirm, 0, sizeof( McpsConfirm ) );
dudmuck 2:f2d9aa163652 2737 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_MCPSREQ;
dudmuck 0:8f0d0ae0a077 2738
dudmuck 0:8f0d0ae0a077 2739 switch( mcpsRequest->Type )
dudmuck 0:8f0d0ae0a077 2740 {
dudmuck 0:8f0d0ae0a077 2741 case MCPS_UNCONFIRMED:
dudmuck 0:8f0d0ae0a077 2742 {
dudmuck 0:8f0d0ae0a077 2743 readyToSend = true;
dudmuck 0:8f0d0ae0a077 2744
dudmuck 0:8f0d0ae0a077 2745 macHdr.Bits.MType = FRAME_TYPE_DATA_UNCONFIRMED_UP;
dudmuck 0:8f0d0ae0a077 2746 fPort = mcpsRequest->Req.Unconfirmed.fPort;
dudmuck 0:8f0d0ae0a077 2747 fBuffer = mcpsRequest->Req.Unconfirmed.fBuffer;
dudmuck 0:8f0d0ae0a077 2748 fBufferSize = mcpsRequest->Req.Unconfirmed.fBufferSize;
dudmuck 0:8f0d0ae0a077 2749 break;
dudmuck 0:8f0d0ae0a077 2750 }
dudmuck 0:8f0d0ae0a077 2751 case MCPS_CONFIRMED:
dudmuck 0:8f0d0ae0a077 2752 {
dudmuck 0:8f0d0ae0a077 2753 readyToSend = true;
dudmuck 0:8f0d0ae0a077 2754
dudmuck 0:8f0d0ae0a077 2755 macHdr.Bits.MType = FRAME_TYPE_DATA_CONFIRMED_UP;
dudmuck 0:8f0d0ae0a077 2756 fPort = mcpsRequest->Req.Confirmed.fPort;
dudmuck 0:8f0d0ae0a077 2757 fBuffer = mcpsRequest->Req.Confirmed.fBuffer;
dudmuck 0:8f0d0ae0a077 2758 fBufferSize = mcpsRequest->Req.Confirmed.fBufferSize;
dudmuck 0:8f0d0ae0a077 2759 break;
dudmuck 0:8f0d0ae0a077 2760 }
dudmuck 0:8f0d0ae0a077 2761 case MCPS_PROPRIETARY:
dudmuck 0:8f0d0ae0a077 2762 {
dudmuck 0:8f0d0ae0a077 2763 readyToSend = true;
dudmuck 0:8f0d0ae0a077 2764
dudmuck 0:8f0d0ae0a077 2765 macHdr.Bits.MType = FRAME_TYPE_PROPRIETARY;
dudmuck 0:8f0d0ae0a077 2766 fBuffer = mcpsRequest->Req.Proprietary.fBuffer;
dudmuck 0:8f0d0ae0a077 2767 fBufferSize = mcpsRequest->Req.Proprietary.fBufferSize;
dudmuck 0:8f0d0ae0a077 2768 break;
dudmuck 0:8f0d0ae0a077 2769 }
dudmuck 0:8f0d0ae0a077 2770 default:
dudmuck 0:8f0d0ae0a077 2771 break;
dudmuck 0:8f0d0ae0a077 2772 }
dudmuck 0:8f0d0ae0a077 2773
dudmuck 0:8f0d0ae0a077 2774 if( readyToSend == true )
dudmuck 0:8f0d0ae0a077 2775 {
dudmuck 0:8f0d0ae0a077 2776 status = Send( &macHdr, fPort, fBuffer, fBufferSize );
dudmuck 0:8f0d0ae0a077 2777 if( status == LORAMAC_STATUS_OK )
dudmuck 0:8f0d0ae0a077 2778 {
dudmuck 0:8f0d0ae0a077 2779 McpsConfirm.McpsRequest = mcpsRequest->Type;
dudmuck 0:8f0d0ae0a077 2780 LoRaMacFlags.Bits.McpsReq = 1;
dudmuck 0:8f0d0ae0a077 2781 }
dudmuck 0:8f0d0ae0a077 2782 else
dudmuck 0:8f0d0ae0a077 2783 {
dudmuck 0:8f0d0ae0a077 2784 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 2785 }
dudmuck 0:8f0d0ae0a077 2786 }
dudmuck 0:8f0d0ae0a077 2787
dudmuck 0:8f0d0ae0a077 2788 return status;
dudmuck 0:8f0d0ae0a077 2789 }
dudmuck 0:8f0d0ae0a077 2790
dudmuck 0:8f0d0ae0a077 2791 void LoRaMacTestRxWindowsOn( bool enable )
dudmuck 0:8f0d0ae0a077 2792 {
dudmuck 0:8f0d0ae0a077 2793 IsRxWindowsEnabled = enable;
dudmuck 0:8f0d0ae0a077 2794 }
dudmuck 0:8f0d0ae0a077 2795
dudmuck 0:8f0d0ae0a077 2796 void LoRaMacTestSetMic( uint16_t txPacketCounter )
dudmuck 0:8f0d0ae0a077 2797 {
dudmuck 0:8f0d0ae0a077 2798 UpLinkCounter = txPacketCounter;
dudmuck 0:8f0d0ae0a077 2799 IsUpLinkCounterFixed = true;
dudmuck 0:8f0d0ae0a077 2800 }
dudmuck 0:8f0d0ae0a077 2801
dudmuck 0:8f0d0ae0a077 2802 void LoRaMacTestSetChannel( uint8_t channel )
dudmuck 0:8f0d0ae0a077 2803 {
dudmuck 1:53c30224eda8 2804 isr_printf("set-testch%u\r\n", channel);
dudmuck 0:8f0d0ae0a077 2805 Channel = channel;
dudmuck 0:8f0d0ae0a077 2806 }
dudmuck 0:8f0d0ae0a077 2807
dudmuck 0:8f0d0ae0a077 2808
dudmuck 0:8f0d0ae0a077 2809 static RxConfigParams_t ComputeRxWindowParameters( int8_t datarate, uint32_t rxError )
dudmuck 0:8f0d0ae0a077 2810 {
dudmuck 0:8f0d0ae0a077 2811 RxConfigParams_t rxConfigParams = { 0, 0, 0, 0 };
dudmuck 0:8f0d0ae0a077 2812 double tSymbol = 0.0;
dudmuck 0:8f0d0ae0a077 2813
dudmuck 0:8f0d0ae0a077 2814 rxConfigParams.Datarate = datarate;
dudmuck 0:8f0d0ae0a077 2815 switch( Bandwidths[datarate] )
dudmuck 0:8f0d0ae0a077 2816 {
dudmuck 0:8f0d0ae0a077 2817 default:
dudmuck 0:8f0d0ae0a077 2818 case 125000:
dudmuck 0:8f0d0ae0a077 2819 rxConfigParams.Bandwidth = 0;
dudmuck 0:8f0d0ae0a077 2820 break;
dudmuck 0:8f0d0ae0a077 2821 case 250000:
dudmuck 0:8f0d0ae0a077 2822 rxConfigParams.Bandwidth = 1;
dudmuck 0:8f0d0ae0a077 2823 break;
dudmuck 0:8f0d0ae0a077 2824 case 500000:
dudmuck 0:8f0d0ae0a077 2825 rxConfigParams.Bandwidth = 2;
dudmuck 0:8f0d0ae0a077 2826 break;
dudmuck 0:8f0d0ae0a077 2827 }
dudmuck 0:8f0d0ae0a077 2828
dudmuck 0:8f0d0ae0a077 2829 #if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
dudmuck 0:8f0d0ae0a077 2830 if( datarate == DR_7 )
dudmuck 0:8f0d0ae0a077 2831 { // FSK
dudmuck 0:8f0d0ae0a077 2832 tSymbol = ( 1.0 / ( double )Datarates[datarate] ) * 8.0; // 1 symbol equals 1 byte
dudmuck 0:8f0d0ae0a077 2833 }
dudmuck 0:8f0d0ae0a077 2834 else
dudmuck 0:8f0d0ae0a077 2835 #endif
dudmuck 0:8f0d0ae0a077 2836 { // LoRa
dudmuck 0:8f0d0ae0a077 2837 tSymbol = ( ( double )( 1 << Datarates[datarate] ) / ( double )Bandwidths[datarate] ) * 1e3;
dudmuck 0:8f0d0ae0a077 2838 }
dudmuck 0:8f0d0ae0a077 2839
dudmuck 0:8f0d0ae0a077 2840 rxConfigParams.RxWindowTimeout = MAX( ( uint32_t )ceil( ( ( 2 * LoRaMacParams.MinRxSymbols - 8 ) * tSymbol + 2 * rxError ) / tSymbol ), LoRaMacParams.MinRxSymbols ); // Computed number of symbols
dudmuck 0:8f0d0ae0a077 2841
dudmuck 0:8f0d0ae0a077 2842 rxConfigParams.RxOffset = ( int32_t )ceil( ( 4.0 * tSymbol ) - ( ( rxConfigParams.RxWindowTimeout * tSymbol ) / 2.0 ) - RADIO_WAKEUP_TIME );
dudmuck 0:8f0d0ae0a077 2843
dudmuck 0:8f0d0ae0a077 2844 return rxConfigParams;
dudmuck 0:8f0d0ae0a077 2845 }
dudmuck 0:8f0d0ae0a077 2846