wayne roberts / Mbed OS LoRaWAN_singlechannel_endnode

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Dependencies:   SX127x sx12xx_hal TSL2561

mac/LoRaMac.cpp@8:ab2f9a8d2eaa, 2017-06-07 (annotated)

Committer:
dudmuck
Date:
Wed Jun 07 19:56:28 2017 +0000
Revision:
8:ab2f9a8d2eaa
Parent:
7:e238827f0e47
Child:
10:00997daeb0c0
prevent rx window from colliding with beacon reception

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 7:e238827f0e47 652 isr_printf("LoRaMacState:%lx DR%u=sf%u\r\n", LoRaMacState, LoRaMacParams.ChannelsDatarate_fixed, Datarates[LoRaMacParams.ChannelsDatarate_fixed]);
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 8:ab2f9a8d2eaa 713 int us_to_beacon, us_since_beacon_start = lp_timer.read_us() - BeaconCtx.LastBeaconStart_us;
dudmuck 8:ab2f9a8d2eaa 714 us_to_beacon = BEACON_INTERVAL_us - us_since_beacon_start;
dudmuck 8:ab2f9a8d2eaa 715 if (us_to_beacon < 500000) {
dudmuck 8:ab2f9a8d2eaa 716 /* would step on beacon reception */
dudmuck 8:ab2f9a8d2eaa 717 isr_printf("<rxwinT %d>\r\n", us_to_beacon);
dudmuck 8:ab2f9a8d2eaa 718 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT;
dudmuck 8:ab2f9a8d2eaa 719 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT;
dudmuck 8:ab2f9a8d2eaa 720 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 8:ab2f9a8d2eaa 721 return;
dudmuck 8:ab2f9a8d2eaa 722 }
dudmuck 0:8f0d0ae0a077 723 rx_timeout.attach_us(&OnRxWindowTimerEvent, RxWindowDelay_us);
dudmuck 0:8f0d0ae0a077 724 if( NodeAckRequested == true )
dudmuck 0:8f0d0ae0a077 725 {
dudmuck 0:8f0d0ae0a077 726 AckTimeoutTimer.attach_us(&OnAckTimeoutTimerEvent, (RxWindowDelay_us/1000) + ACK_TIMEOUT_us + randr(-ACK_TIMEOUT_RND_us, ACK_TIMEOUT_RND_us));
dudmuck 0:8f0d0ae0a077 727 }
dudmuck 0:8f0d0ae0a077 728 }
dudmuck 0:8f0d0ae0a077 729 else
dudmuck 0:8f0d0ae0a077 730 {
dudmuck 0:8f0d0ae0a077 731 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 732 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 733
dudmuck 0:8f0d0ae0a077 734 if( LoRaMacFlags.Value == 0 )
dudmuck 0:8f0d0ae0a077 735 {
dudmuck 0:8f0d0ae0a077 736 LoRaMacFlags.Bits.McpsReq = 1;
dudmuck 0:8f0d0ae0a077 737 }
dudmuck 0:8f0d0ae0a077 738 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 739 }
dudmuck 0:8f0d0ae0a077 740
dudmuck 0:8f0d0ae0a077 741 // Update last tx done time for the current channel
dudmuck 1:53c30224eda8 742 //Bands[Channels[Channel].Band].last_tx_done_us = tx_done_us;
dudmuck 0:8f0d0ae0a077 743 // Update Aggregated last tx done time
dudmuck 0:8f0d0ae0a077 744 AggregatedLastTxDoneTime_us = tx_done_us;
dudmuck 0:8f0d0ae0a077 745 // Update Backoff
dudmuck 0:8f0d0ae0a077 746
dudmuck 0:8f0d0ae0a077 747 if( NodeAckRequested == false )
dudmuck 0:8f0d0ae0a077 748 {
dudmuck 0:8f0d0ae0a077 749 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 750 ChannelsNbRepCounter++;
dudmuck 0:8f0d0ae0a077 751 }
dudmuck 0:8f0d0ae0a077 752 }
dudmuck 0:8f0d0ae0a077 753
dudmuck 0:8f0d0ae0a077 754 static void PrepareRxDoneAbort( void )
dudmuck 0:8f0d0ae0a077 755 {
dudmuck 0:8f0d0ae0a077 756 LoRaMacState |= LORAMAC_RX_ABORT;
dudmuck 0:8f0d0ae0a077 757
dudmuck 0:8f0d0ae0a077 758 if( NodeAckRequested )
dudmuck 0:8f0d0ae0a077 759 {
dudmuck 0:8f0d0ae0a077 760 OnAckTimeoutTimerEvent( );
dudmuck 0:8f0d0ae0a077 761 }
dudmuck 0:8f0d0ae0a077 762
dudmuck 0:8f0d0ae0a077 763 LoRaMacFlags.Bits.McpsInd = 1;
dudmuck 0:8f0d0ae0a077 764 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 765
dudmuck 0:8f0d0ae0a077 766 // Trig OnMacCheckTimerEvent call as soon as possible
dudmuck 0:8f0d0ae0a077 767 OnMacStateCheckTimerEvent();
dudmuck 0:8f0d0ae0a077 768 }
dudmuck 0:8f0d0ae0a077 769
dudmuck 8:ab2f9a8d2eaa 770 int us_at_sched;
dudmuck 0:8f0d0ae0a077 771 void send_callback()
dudmuck 0:8f0d0ae0a077 772 {
dudmuck 8:ab2f9a8d2eaa 773 LoRaMacState &= ~LORAMAC_TX_SCHED;
dudmuck 8:ab2f9a8d2eaa 774
dudmuck 5:c108560af4c3 775 Radio.SetTxConfig(
dudmuck 5:c108560af4c3 776 /* RadioModems_t modem */ MODEM_LORA,
dudmuck 5:c108560af4c3 777 /* int8_t power */ TxPowers[LoRaMacParams.ChannelsTxPower],
dudmuck 5:c108560af4c3 778 /* uint32_t fdev */ 0,
dudmuck 5:c108560af4c3 779 /* uint32_t bandwidth */ 2,
dudmuck 5:c108560af4c3 780 /* uint32_t datarate */ Datarates[LoRaMacParams.ChannelsDatarate_fixed],
dudmuck 5:c108560af4c3 781 /* uint8_t coderate */ 1,
dudmuck 5:c108560af4c3 782 /* uint16_t preambleLen */ 8,
dudmuck 5:c108560af4c3 783 /* bool fixLen */ false,
dudmuck 5:c108560af4c3 784 /* bool crcOn */ true,
dudmuck 5:c108560af4c3 785 /* bool freqHopOn */ 0,
dudmuck 5:c108560af4c3 786 /* uint8_t hopPeriod */ 0,
dudmuck 5:c108560af4c3 787 /* bool iqInverted */ false,
dudmuck 5:c108560af4c3 788 /* uint32_t timeout */ 3e3
dudmuck 5:c108560af4c3 789 );
dudmuck 0:8f0d0ae0a077 790 Radio.Send( LoRaMacBuffer, LoRaMacBufferPktLen );
dudmuck 0:8f0d0ae0a077 791
dudmuck 0:8f0d0ae0a077 792 LoRaMacState |= LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 793
dudmuck 0:8f0d0ae0a077 794 // Starts the MAC layer status check timer
dudmuck 0:8f0d0ae0a077 795 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 5:c108560af4c3 796
dudmuck 5:c108560af4c3 797 /*
dudmuck 5:c108560af4c3 798 unsigned int now_us = lp_timer.read_us();
dudmuck 5:c108560af4c3 799 int us_since_beacon_start = now_us - BeaconCtx.LastBeaconStart_us;
dudmuck 5:c108560af4c3 800 int now_slot = (us_since_beacon_start - BEACON_RESERVED_us) / 30000;
dudmuck 5:c108560af4c3 801 isr_printf("send now slot:%u\r\n", now_slot);
dudmuck 5:c108560af4c3 802 */
dudmuck 0:8f0d0ae0a077 803 }
dudmuck 0:8f0d0ae0a077 804
dudmuck 0:8f0d0ae0a077 805 void OnRxBeaconSetup()
dudmuck 0:8f0d0ae0a077 806 {
dudmuck 0:8f0d0ae0a077 807 BeaconCtx.RxBeaconSetupAt_us = lp_timer.read_us();
dudmuck 0:8f0d0ae0a077 808
dudmuck 0:8f0d0ae0a077 809 Radio.SetRxConfig(
dudmuck 0:8f0d0ae0a077 810 /* RadioModems_t */ MODEM_LORA,
dudmuck 0:8f0d0ae0a077 811 /* uint32_t bandwidth */ BEACON_CHANNEL_BW,
dudmuck 0:8f0d0ae0a077 812 /* uint32_t datarate */ Datarates[BEACON_CHANNEL_DR],
dudmuck 0:8f0d0ae0a077 813 /* uint8_t coderate */ 1,
dudmuck 0:8f0d0ae0a077 814 /* uint32_t bandwidthAfc */ 0,
dudmuck 0:8f0d0ae0a077 815 /* uint16_t preambleLen */ 10,
dudmuck 0:8f0d0ae0a077 816 /* uint16_t symbTimeout */ BeaconCtx.SymbolTimeout,
dudmuck 0:8f0d0ae0a077 817 /* bool fixLen */ true,
dudmuck 0:8f0d0ae0a077 818 /* uint8_t payloadLen */ BEACON_SIZE,
dudmuck 0:8f0d0ae0a077 819 /* bool crcOn */ false,
dudmuck 0:8f0d0ae0a077 820 /* bool freqHopOn */ 0,
dudmuck 0:8f0d0ae0a077 821 /* uint8_t hopPeriod */ 0,
dudmuck 0:8f0d0ae0a077 822 /* bool iqInverted */ false,
dudmuck 0:8f0d0ae0a077 823 /* bool rxContinuous */false
dudmuck 0:8f0d0ae0a077 824 );
dudmuck 0:8f0d0ae0a077 825
dudmuck 0:8f0d0ae0a077 826 Radio.Rx(2000);
dudmuck 0:8f0d0ae0a077 827
dudmuck 0:8f0d0ae0a077 828 expecting_beacon = true;
dudmuck 0:8f0d0ae0a077 829 }
dudmuck 0:8f0d0ae0a077 830
dudmuck 0:8f0d0ae0a077 831 static void set_beacon_symbol_timeout(float secs)
dudmuck 0:8f0d0ae0a077 832 {
dudmuck 0:8f0d0ae0a077 833 BeaconCtx.SymbolTimeout = secs / BeaconCtx.symbol_period_secs;
dudmuck 0:8f0d0ae0a077 834 if (BeaconCtx.SymbolTimeout < (BEACON_MIN_SYMBOL_TIMEOUT+BeaconCtx.Precess_symbols)) {
dudmuck 8:ab2f9a8d2eaa 835 BeaconCtx.SymbolTimeout = BEACON_MIN_SYMBOL_TIMEOUT+BeaconCtx.Precess_symbols;
dudmuck 0:8f0d0ae0a077 836 }
dudmuck 8:ab2f9a8d2eaa 837 BeaconCtx.SymbolTimeout_sec = BeaconCtx.SymbolTimeout * BeaconCtx.symbol_period_secs;
dudmuck 0:8f0d0ae0a077 838 }
dudmuck 0:8f0d0ae0a077 839
dudmuck 0:8f0d0ae0a077 840 static uint16_t beacon_crc( uint8_t *buffer, uint16_t length )
dudmuck 0:8f0d0ae0a077 841 {
dudmuck 0:8f0d0ae0a077 842 // The CRC calculation follows CCITT
dudmuck 0:8f0d0ae0a077 843 const uint16_t polynom = 0x1021;
dudmuck 0:8f0d0ae0a077 844 // CRC initial value
dudmuck 0:8f0d0ae0a077 845 uint16_t crc = 0x0000;
dudmuck 0:8f0d0ae0a077 846
dudmuck 0:8f0d0ae0a077 847 if( buffer == NULL )
dudmuck 0:8f0d0ae0a077 848 {
dudmuck 0:8f0d0ae0a077 849 return 0;
dudmuck 0:8f0d0ae0a077 850 }
dudmuck 0:8f0d0ae0a077 851
dudmuck 0:8f0d0ae0a077 852 for( uint16_t i = 0; i < length; ++i )
dudmuck 0:8f0d0ae0a077 853 {
dudmuck 0:8f0d0ae0a077 854 crc ^= ( uint16_t ) buffer[i] << 8;
dudmuck 0:8f0d0ae0a077 855 for( uint16_t j = 0; j < 8; ++j )
dudmuck 0:8f0d0ae0a077 856 {
dudmuck 0:8f0d0ae0a077 857 crc = ( crc & 0x8000 ) ? ( crc << 1 ) ^ polynom : ( crc << 1 );
dudmuck 0:8f0d0ae0a077 858 }
dudmuck 0:8f0d0ae0a077 859 }
dudmuck 0:8f0d0ae0a077 860
dudmuck 0:8f0d0ae0a077 861 return crc;
dudmuck 0:8f0d0ae0a077 862 }
dudmuck 0:8f0d0ae0a077 863
dudmuck 0:8f0d0ae0a077 864 /* low power timer needs larger value due to poor resolution */
dudmuck 0:8f0d0ae0a077 865 #define TARGET_PRECESSION_US 3000
dudmuck 0:8f0d0ae0a077 866 #define BEACON_RX_TIMEOUT_LOCKED 0.008
dudmuck 0:8f0d0ae0a077 867
dudmuck 0:8f0d0ae0a077 868 void rx_beacon(unsigned int rx_us, uint8_t* payload, uint16_t size)
dudmuck 0:8f0d0ae0a077 869 {
dudmuck 0:8f0d0ae0a077 870 static bool compensate_precession = false;
dudmuck 0:8f0d0ae0a077 871 int32_t compensation = 0;
dudmuck 0:8f0d0ae0a077 872 unsigned ThisBeaconRx_us = rx_us - (BEACON_TOA_us + BEACON_RXDONE_LATENCY_us);
dudmuck 0:8f0d0ae0a077 873
dudmuck 0:8f0d0ae0a077 874 BeaconCtx.rx_precession_us = ThisBeaconRx_us - BeaconCtx.RxBeaconSetupAt_us;
dudmuck 0:8f0d0ae0a077 875 if (BeaconCtx.state != BEACON_STATE_FIRST_ACQ) {
dudmuck 0:8f0d0ae0a077 876 unsigned int intervals_since_last = (ThisBeaconRx_us / BEACON_INTERVAL_us) - (BeaconCtx.LastBeaconRx_us / BEACON_INTERVAL_us);
dudmuck 0:8f0d0ae0a077 877 /* get average of error history */
dudmuck 0:8f0d0ae0a077 878 BeaconCtx.BeaconRxTimerError_us = (ThisBeaconRx_us - BeaconCtx.LastBeaconRx_us) % BEACON_INTERVAL_us;
dudmuck 0:8f0d0ae0a077 879 /* BeaconRxTimerError: positive means our clock is fast
dudmuck 0:8f0d0ae0a077 880 * negative means our clock is slow */
dudmuck 0:8f0d0ae0a077 881 if (BeaconCtx.BeaconRxTimerError_us > (BEACON_INTERVAL_us/2))
dudmuck 0:8f0d0ae0a077 882 BeaconCtx.BeaconRxTimerError_us -= BEACON_INTERVAL_us; // negative value representing slow crystal
dudmuck 0:8f0d0ae0a077 883
dudmuck 0:8f0d0ae0a077 884 if (intervals_since_last > 1) {
dudmuck 0:8f0d0ae0a077 885 /* timer error is measured over more than one beacon period */
dudmuck 0:8f0d0ae0a077 886 BeaconCtx.BeaconRxTimerError_us /= intervals_since_last;
dudmuck 0:8f0d0ae0a077 887 }
dudmuck 0:8f0d0ae0a077 888
dudmuck 0:8f0d0ae0a077 889 if (BeaconCtx.state == BEACON_STATE_ACQ_ERROR) {
dudmuck 1:53c30224eda8 890 isr_printf("-->LOCKED ");
dudmuck 0:8f0d0ae0a077 891 BeaconCtx.state = BEACON_STATE_LOCKED_;
dudmuck 0:8f0d0ae0a077 892 compensate_precession = true;
dudmuck 0:8f0d0ae0a077 893 set_beacon_symbol_timeout(BEACON_RX_TIMEOUT_LOCKED);
dudmuck 0:8f0d0ae0a077 894 }
dudmuck 0:8f0d0ae0a077 895 } else {
dudmuck 0:8f0d0ae0a077 896 /* ignore precession at first acquisition because it has slot resolution added */
dudmuck 1:53c30224eda8 897 isr_printf("-->ACQ_ERROR ");
dudmuck 0:8f0d0ae0a077 898 // next beacon will give us our crystal error
dudmuck 0:8f0d0ae0a077 899 BeaconCtx.state = BEACON_STATE_ACQ_ERROR;
dudmuck 0:8f0d0ae0a077 900 }
dudmuck 0:8f0d0ae0a077 901
dudmuck 1:53c30224eda8 902 isr_printf("err%d=%u-%u ", BeaconCtx.BeaconRxTimerError_us, ThisBeaconRx_us, BeaconCtx.LastBeaconRx_us);
dudmuck 1:53c30224eda8 903 isr_printf(" rx-before-tx:%d ", BeaconCtx.rx_precession_us);
dudmuck 0:8f0d0ae0a077 904 BeaconCtx.LastBeaconRx_us = ThisBeaconRx_us;
dudmuck 0:8f0d0ae0a077 905 BeaconCtx.LastBeaconStart_us = BeaconCtx.LastBeaconRx_us;
dudmuck 0:8f0d0ae0a077 906
dudmuck 0:8f0d0ae0a077 907 if (BeaconCtx.state == BEACON_STATE_LOCKED_) {
dudmuck 0:8f0d0ae0a077 908 if (compensate_precession) {
dudmuck 0:8f0d0ae0a077 909 compensation = BeaconCtx.rx_precession_us - TARGET_PRECESSION_US + BeaconCtx.BeaconRxTimerError_us;
dudmuck 1:53c30224eda8 910 isr_printf(" comp%ld", compensation);
dudmuck 0:8f0d0ae0a077 911 }
dudmuck 0:8f0d0ae0a077 912 }
dudmuck 0:8f0d0ae0a077 913
dudmuck 1:53c30224eda8 914 isr_printf("\r\n");
dudmuck 0:8f0d0ae0a077 915
dudmuck 0:8f0d0ae0a077 916 BeaconCtx.next_beacon_expected_us = BEACON_INTERVAL_us + compensation;
dudmuck 0:8f0d0ae0a077 917 unsigned now_us = lp_timer.read_us();
dudmuck 0:8f0d0ae0a077 918 unsigned us_since_rx_setup = now_us - BeaconCtx.RxBeaconSetupAt_us;
dudmuck 0:8f0d0ae0a077 919 BeaconCtx.timeout.attach_us(&OnRxBeaconSetup, BeaconCtx.next_beacon_expected_us - us_since_rx_setup);
dudmuck 0:8f0d0ae0a077 920
dudmuck 0:8f0d0ae0a077 921 if (BeaconCtx.num_missed > 0) {
dudmuck 0:8f0d0ae0a077 922 /* restore rx symbol timeout */
dudmuck 0:8f0d0ae0a077 923 set_beacon_symbol_timeout(BEACON_RX_TIMEOUT_LOCKED);
dudmuck 0:8f0d0ae0a077 924 }
dudmuck 0:8f0d0ae0a077 925
dudmuck 0:8f0d0ae0a077 926 BeaconCtx.num_missed = 0;
dudmuck 0:8f0d0ae0a077 927 BeaconCtx.have_beacon = true;
dudmuck 0:8f0d0ae0a077 928
dudmuck 0:8f0d0ae0a077 929 MlmeIndication.MlmeIndication = MLME_BEACON;
dudmuck 0:8f0d0ae0a077 930 MlmeIndication.Status = LORAMAC_EVENT_INFO_STATUS_BEACON_LOCKED;
dudmuck 0:8f0d0ae0a077 931 LoRaMacPrimitives->MacMlmeIndication( &MlmeIndication );
dudmuck 0:8f0d0ae0a077 932 //LoRaMacFlags.Bits.MlmeInd = 1;
dudmuck 0:8f0d0ae0a077 933
dudmuck 0:8f0d0ae0a077 934 /* check beacon payload */
dudmuck 0:8f0d0ae0a077 935 uint16_t calc_crc = beacon_crc(payload, 4);
dudmuck 0:8f0d0ae0a077 936 uint16_t rx_crc = payload[4];
dudmuck 0:8f0d0ae0a077 937 rx_crc |= payload[5] << 8;
dudmuck 0:8f0d0ae0a077 938 if (rx_crc == calc_crc) {
dudmuck 0:8f0d0ae0a077 939 unsigned int rx = payload[0];
dudmuck 0:8f0d0ae0a077 940 rx |= payload[1] << 8;
dudmuck 0:8f0d0ae0a077 941 rx |= payload[2] << 16;
dudmuck 0:8f0d0ae0a077 942 rx |= payload[3] << 24;
dudmuck 0:8f0d0ae0a077 943 if (rx != 0)
dudmuck 1:53c30224eda8 944 isr_printf("beacon payload:%08x\r\n", rx);
dudmuck 0:8f0d0ae0a077 945 } else
dudmuck 1:53c30224eda8 946 isr_printf("calc_crc:%04x rx_crc:%04x\r\n", calc_crc, rx_crc);
dudmuck 0:8f0d0ae0a077 947 }
dudmuck 0:8f0d0ae0a077 948
dudmuck 0:8f0d0ae0a077 949 float get_symbol_period(uint8_t bw, uint8_t sf)
dudmuck 0:8f0d0ae0a077 950 {
dudmuck 0:8f0d0ae0a077 951 //bw:, // 0=125kHz, 1=250kHz, 2=500KHz
dudmuck 0:8f0d0ae0a077 952 float hz;
dudmuck 0:8f0d0ae0a077 953 switch( bw )
dudmuck 0:8f0d0ae0a077 954 {
dudmuck 0:8f0d0ae0a077 955 //case 0: // 7.8 kHz
dudmuck 0:8f0d0ae0a077 956 // bw = 78e2;
dudmuck 0:8f0d0ae0a077 957 // break;
dudmuck 0:8f0d0ae0a077 958 //case 1: // 10.4 kHz
dudmuck 0:8f0d0ae0a077 959 // bw = 104e2;
dudmuck 0:8f0d0ae0a077 960 // break;
dudmuck 0:8f0d0ae0a077 961 //case 2: // 15.6 kHz
dudmuck 0:8f0d0ae0a077 962 // bw = 156e2;
dudmuck 0:8f0d0ae0a077 963 // break;
dudmuck 0:8f0d0ae0a077 964 //case 3: // 20.8 kHz
dudmuck 0:8f0d0ae0a077 965 // bw = 208e2;
dudmuck 0:8f0d0ae0a077 966 // break;
dudmuck 0:8f0d0ae0a077 967 //case 4: // 31.2 kHz
dudmuck 0:8f0d0ae0a077 968 // bw = 312e2;
dudmuck 0:8f0d0ae0a077 969 // break;
dudmuck 0:8f0d0ae0a077 970 //case 5: // 41.4 kHz
dudmuck 0:8f0d0ae0a077 971 // bw = 414e2;
dudmuck 0:8f0d0ae0a077 972 // break;
dudmuck 0:8f0d0ae0a077 973 //case 6: // 62.5 kHz
dudmuck 0:8f0d0ae0a077 974 // bw = 625e2;
dudmuck 0:8f0d0ae0a077 975 // break;
dudmuck 0:8f0d0ae0a077 976 case 0: // 125 kHz
dudmuck 0:8f0d0ae0a077 977 hz = 125e3;
dudmuck 0:8f0d0ae0a077 978 break;
dudmuck 0:8f0d0ae0a077 979 case 1: // 250 kHz
dudmuck 0:8f0d0ae0a077 980 hz = 250e3;
dudmuck 0:8f0d0ae0a077 981 break;
dudmuck 0:8f0d0ae0a077 982 case 2: // 500 kHz
dudmuck 0:8f0d0ae0a077 983 hz = 500e3;
dudmuck 0:8f0d0ae0a077 984 break;
dudmuck 0:8f0d0ae0a077 985 default:
dudmuck 0:8f0d0ae0a077 986 return 0;
dudmuck 0:8f0d0ae0a077 987 }
dudmuck 0:8f0d0ae0a077 988
dudmuck 0:8f0d0ae0a077 989 // return symbol period in seconds
dudmuck 0:8f0d0ae0a077 990 return (1 << sf) / hz;
dudmuck 0:8f0d0ae0a077 991 }
dudmuck 0:8f0d0ae0a077 992
dudmuck 0:8f0d0ae0a077 993 static uint32_t GetRxBandwidth( int8_t datarate )
dudmuck 0:8f0d0ae0a077 994 {
dudmuck 0:8f0d0ae0a077 995 return 2; /* always 500KHz */
dudmuck 0:8f0d0ae0a077 996 }
dudmuck 0:8f0d0ae0a077 997
dudmuck 0:8f0d0ae0a077 998 static void OnRadioRxDone(unsigned rx_us, uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
dudmuck 0:8f0d0ae0a077 999 {
dudmuck 0:8f0d0ae0a077 1000 LoRaMacHeader_t macHdr;
dudmuck 0:8f0d0ae0a077 1001 LoRaMacFrameCtrl_t fCtrl;
dudmuck 0:8f0d0ae0a077 1002 bool skipIndication = false;
dudmuck 0:8f0d0ae0a077 1003
dudmuck 0:8f0d0ae0a077 1004 uint8_t pktHeaderLen = 0;
dudmuck 0:8f0d0ae0a077 1005 uint32_t address = 0;
dudmuck 0:8f0d0ae0a077 1006 uint8_t appPayloadStartIndex = 0;
dudmuck 0:8f0d0ae0a077 1007 uint8_t port = 0xFF;
dudmuck 0:8f0d0ae0a077 1008 uint8_t frameLen = 0;
dudmuck 0:8f0d0ae0a077 1009 uint32_t mic = 0;
dudmuck 0:8f0d0ae0a077 1010 uint32_t micRx = 0;
dudmuck 0:8f0d0ae0a077 1011
dudmuck 0:8f0d0ae0a077 1012 uint16_t sequenceCounter = 0;
dudmuck 0:8f0d0ae0a077 1013 uint16_t sequenceCounterPrev = 0;
dudmuck 0:8f0d0ae0a077 1014 uint16_t sequenceCounterDiff = 0;
dudmuck 0:8f0d0ae0a077 1015 uint32_t downLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1016
dudmuck 0:8f0d0ae0a077 1017 MulticastParams_t *curMulticastParams = NULL;
dudmuck 0:8f0d0ae0a077 1018 uint8_t *nwkSKey = LoRaMacNwkSKey;
dudmuck 0:8f0d0ae0a077 1019 uint8_t *appSKey = LoRaMacAppSKey;
dudmuck 0:8f0d0ae0a077 1020
dudmuck 0:8f0d0ae0a077 1021 uint8_t multicast = 0;
dudmuck 0:8f0d0ae0a077 1022
dudmuck 0:8f0d0ae0a077 1023 bool isMicOk = false;
dudmuck 0:8f0d0ae0a077 1024
dudmuck 0:8f0d0ae0a077 1025 McpsConfirm.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1026 McpsIndication.Rssi = rssi;
dudmuck 0:8f0d0ae0a077 1027 McpsIndication.Snr = snr;
dudmuck 0:8f0d0ae0a077 1028 McpsIndication.Port = 0;
dudmuck 0:8f0d0ae0a077 1029 McpsIndication.Multicast = 0;
dudmuck 0:8f0d0ae0a077 1030 McpsIndication.FramePending = 0;
dudmuck 0:8f0d0ae0a077 1031 McpsIndication.Buffer = NULL;
dudmuck 0:8f0d0ae0a077 1032 McpsIndication.BufferSize = 0;
dudmuck 0:8f0d0ae0a077 1033 McpsIndication.RxData = false;
dudmuck 0:8f0d0ae0a077 1034 McpsIndication.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1035 McpsIndication.DownLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1036 McpsIndication.McpsIndication = MCPS_UNCONFIRMED;
dudmuck 0:8f0d0ae0a077 1037
dudmuck 0:8f0d0ae0a077 1038 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 1039
dudmuck 0:8f0d0ae0a077 1040 if (expecting_beacon) {
dudmuck 0:8f0d0ae0a077 1041 rx_beacon(rx_us, payload, size);
dudmuck 0:8f0d0ae0a077 1042 expecting_beacon = false;
dudmuck 0:8f0d0ae0a077 1043 return;
dudmuck 0:8f0d0ae0a077 1044 }
dudmuck 0:8f0d0ae0a077 1045
dudmuck 0:8f0d0ae0a077 1046 macHdr.Value = payload[pktHeaderLen++];
dudmuck 0:8f0d0ae0a077 1047
dudmuck 0:8f0d0ae0a077 1048 switch( macHdr.Bits.MType )
dudmuck 0:8f0d0ae0a077 1049 {
dudmuck 0:8f0d0ae0a077 1050 case FRAME_TYPE_JOIN_ACCEPT:
dudmuck 0:8f0d0ae0a077 1051 if( IsLoRaMacNetworkJoined == true )
dudmuck 0:8f0d0ae0a077 1052 {
dudmuck 2:f2d9aa163652 1053 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_JOIN_ACCEPT;
dudmuck 0:8f0d0ae0a077 1054 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1055 return;
dudmuck 0:8f0d0ae0a077 1056 }
dudmuck 0:8f0d0ae0a077 1057 LoRaMacJoinDecrypt( payload + 1, size - 1, LoRaMacAppKey, LoRaMacRxPayload + 1 );
dudmuck 0:8f0d0ae0a077 1058
dudmuck 0:8f0d0ae0a077 1059 LoRaMacRxPayload[0] = macHdr.Value;
dudmuck 0:8f0d0ae0a077 1060
dudmuck 0:8f0d0ae0a077 1061 LoRaMacJoinComputeMic( LoRaMacRxPayload, size - LORAMAC_MFR_LEN, LoRaMacAppKey, &mic );
dudmuck 0:8f0d0ae0a077 1062
dudmuck 0:8f0d0ae0a077 1063 micRx |= ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN];
dudmuck 0:8f0d0ae0a077 1064 micRx |= ( ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN + 1] << 8 );
dudmuck 0:8f0d0ae0a077 1065 micRx |= ( ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN + 2] << 16 );
dudmuck 0:8f0d0ae0a077 1066 micRx |= ( ( uint32_t )LoRaMacRxPayload[size - LORAMAC_MFR_LEN + 3] << 24 );
dudmuck 0:8f0d0ae0a077 1067
dudmuck 0:8f0d0ae0a077 1068 if( micRx == mic )
dudmuck 0:8f0d0ae0a077 1069 {
dudmuck 0:8f0d0ae0a077 1070 LoRaMacJoinComputeSKeys( LoRaMacAppKey, LoRaMacRxPayload + 1, LoRaMacDevNonce, LoRaMacNwkSKey, LoRaMacAppSKey );
dudmuck 1:53c30224eda8 1071 isr_printf("decr%u:", size);
dudmuck 0:8f0d0ae0a077 1072 for (mic = 0; mic < size; mic++)
dudmuck 1:53c30224eda8 1073 isr_printf("%02x ", LoRaMacRxPayload[mic]);
dudmuck 1:53c30224eda8 1074 isr_printf("\r\n");
dudmuck 0:8f0d0ae0a077 1075
dudmuck 0:8f0d0ae0a077 1076 LoRaMacNetID = ( uint32_t )LoRaMacRxPayload[4];
dudmuck 0:8f0d0ae0a077 1077 LoRaMacNetID |= ( ( uint32_t )LoRaMacRxPayload[5] << 8 );
dudmuck 0:8f0d0ae0a077 1078 LoRaMacNetID |= ( ( uint32_t )LoRaMacRxPayload[6] << 16 );
dudmuck 0:8f0d0ae0a077 1079
dudmuck 0:8f0d0ae0a077 1080 LoRaMacDevAddr = ( uint32_t )LoRaMacRxPayload[7];
dudmuck 0:8f0d0ae0a077 1081 LoRaMacDevAddr |= ( ( uint32_t )LoRaMacRxPayload[8] << 8 );
dudmuck 0:8f0d0ae0a077 1082 LoRaMacDevAddr |= ( ( uint32_t )LoRaMacRxPayload[9] << 16 );
dudmuck 0:8f0d0ae0a077 1083 LoRaMacDevAddr |= ( ( uint32_t )LoRaMacRxPayload[10] << 24 );
dudmuck 0:8f0d0ae0a077 1084
dudmuck 0:8f0d0ae0a077 1085 // DLSettings
dudmuck 0:8f0d0ae0a077 1086 LoRaMacParams.Rx1DrOffset = ( LoRaMacRxPayload[11] >> 4 ) & 0x07;
dudmuck 0:8f0d0ae0a077 1087
dudmuck 0:8f0d0ae0a077 1088 LoRaMacParams.ReceiveDelay_us = ( LoRaMacRxPayload[12] & 0x0F );
dudmuck 0:8f0d0ae0a077 1089 if( LoRaMacParams.ReceiveDelay_us == 0 )
dudmuck 0:8f0d0ae0a077 1090 LoRaMacParams.ReceiveDelay_us = RECEIVE_DELAY_us;
dudmuck 0:8f0d0ae0a077 1091 else
dudmuck 0:8f0d0ae0a077 1092 LoRaMacParams.ReceiveDelay_us *= 10;
dudmuck 0:8f0d0ae0a077 1093
dudmuck 0:8f0d0ae0a077 1094 uint16_t beaconTimingDelay = LoRaMacRxPayload[13] & 0xff;
dudmuck 0:8f0d0ae0a077 1095 beaconTimingDelay |= LoRaMacRxPayload[14] << 8;
dudmuck 0:8f0d0ae0a077 1096
dudmuck 1:53c30224eda8 1097 isr_printf("%lx slots:%x (rxdelay %lu)", LoRaMacDevAddr, beaconTimingDelay, LoRaMacParams.ReceiveDelay_us);
dudmuck 0:8f0d0ae0a077 1098 // how long from tx-done of join-request is beacon going to occur at
dudmuck 0:8f0d0ae0a077 1099 uint32_t us_to_beacon = ( PING_SLOT_RESOLUTION_us * beaconTimingDelay );
dudmuck 0:8f0d0ae0a077 1100 // get time elapsed since last tx-done
dudmuck 0:8f0d0ae0a077 1101 unsigned int now_us = lp_timer.read_us();
dudmuck 0:8f0d0ae0a077 1102 unsigned int us_since_TxDone = now_us - TxDone_us;
dudmuck 0:8f0d0ae0a077 1103 BeaconCtx.timeout.attach_us(&OnRxBeaconSetup, us_to_beacon - us_since_TxDone);
dudmuck 0:8f0d0ae0a077 1104 BeaconCtx.next_beacon_expected_us = now_us + us_to_beacon;
dudmuck 1:53c30224eda8 1105 isr_printf("us_to_beacon:%lu, since_tx_done:%u\r\n", us_to_beacon, us_since_TxDone);
dudmuck 0:8f0d0ae0a077 1106 BeaconCtx.have_beacon = false;
dudmuck 0:8f0d0ae0a077 1107 BeaconCtx.state = BEACON_STATE_FIRST_ACQ;
dudmuck 0:8f0d0ae0a077 1108 BeaconCtx.num_missed = 0;
dudmuck 0:8f0d0ae0a077 1109 BeaconCtx.rx_precession_us = 0;
dudmuck 0:8f0d0ae0a077 1110 BeaconCtx.BeaconRxTimerError_us = -PPM_100_BEACON_INTERVAL;
dudmuck 0:8f0d0ae0a077 1111 BeaconCtx.symbol_period_secs = get_symbol_period(GetRxBandwidth(LORAMAC_DEFAULT_DATARATE), Datarates[LORAMAC_DEFAULT_DATARATE]);
dudmuck 0:8f0d0ae0a077 1112 // N-ms: slot resolution + minimum for preamble detector + 100ppm fast crystal rxing 12ms early
dudmuck 0:8f0d0ae0a077 1113 BeaconCtx.Precess_symbols = TARGET_PRECESSION_US * (BeaconCtx.symbol_period_secs);
dudmuck 8:ab2f9a8d2eaa 1114 BeaconCtx.SymbolTimeout_sec = 0.1 + (BEACON_MIN_SYMBOL_TIMEOUT * BeaconCtx.symbol_period_secs);
dudmuck 0:8f0d0ae0a077 1115 BeaconCtx.SymbolTimeout = BeaconCtx.SymbolTimeout_sec / BeaconCtx.symbol_period_secs;
dudmuck 0:8f0d0ae0a077 1116
dudmuck 1:53c30224eda8 1117 isr_printf("sp:%f sto:%d\r\n", BeaconCtx.symbol_period_secs, BeaconCtx.SymbolTimeout);
dudmuck 0:8f0d0ae0a077 1118 BeaconCtx.tx_slot_offset = LoRaMacRxPayload[15];
dudmuck 0:8f0d0ae0a077 1119 BeaconCtx.tx_slot_offset |= LoRaMacRxPayload[16] << 8;
dudmuck 0:8f0d0ae0a077 1120 BeaconCtx.periodicity_slots = LoRaMacRxPayload[17];
dudmuck 0:8f0d0ae0a077 1121 BeaconCtx.periodicity_slots |= LoRaMacRxPayload[18] << 8;
dudmuck 1:53c30224eda8 1122 isr_printf("tso:%u, PS:%u\r\n", BeaconCtx.tx_slot_offset, BeaconCtx.periodicity_slots);
dudmuck 0:8f0d0ae0a077 1123
dudmuck 0:8f0d0ae0a077 1124 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1125 IsLoRaMacNetworkJoined = true;
dudmuck 0:8f0d0ae0a077 1126 LoRaMacParams.ChannelsDatarate_fixed = LoRaMacParamsDefaults.ChannelsDatarate_fixed;
dudmuck 0:8f0d0ae0a077 1127 }
dudmuck 0:8f0d0ae0a077 1128 else
dudmuck 0:8f0d0ae0a077 1129 {
dudmuck 0:8f0d0ae0a077 1130 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_JOIN_FAIL;
dudmuck 1:53c30224eda8 1131 isr_printf("join-mic-fail\r\n");
dudmuck 0:8f0d0ae0a077 1132 JoinRequestTrials = MaxJoinRequestTrials; // stop trying
dudmuck 0:8f0d0ae0a077 1133 }
dudmuck 0:8f0d0ae0a077 1134 break;
dudmuck 0:8f0d0ae0a077 1135 case FRAME_TYPE_DATA_CONFIRMED_DOWN:
dudmuck 0:8f0d0ae0a077 1136 case FRAME_TYPE_DATA_UNCONFIRMED_DOWN:
dudmuck 0:8f0d0ae0a077 1137 {
dudmuck 0:8f0d0ae0a077 1138 address = payload[pktHeaderLen++];
dudmuck 0:8f0d0ae0a077 1139 address |= ( (uint32_t)payload[pktHeaderLen++] << 8 );
dudmuck 0:8f0d0ae0a077 1140 address |= ( (uint32_t)payload[pktHeaderLen++] << 16 );
dudmuck 0:8f0d0ae0a077 1141 address |= ( (uint32_t)payload[pktHeaderLen++] << 24 );
dudmuck 0:8f0d0ae0a077 1142
dudmuck 0:8f0d0ae0a077 1143 if( address != LoRaMacDevAddr )
dudmuck 0:8f0d0ae0a077 1144 {
dudmuck 0:8f0d0ae0a077 1145 curMulticastParams = MulticastChannels;
dudmuck 0:8f0d0ae0a077 1146 while( curMulticastParams != NULL )
dudmuck 0:8f0d0ae0a077 1147 {
dudmuck 0:8f0d0ae0a077 1148 if( address == curMulticastParams->Address )
dudmuck 0:8f0d0ae0a077 1149 {
dudmuck 0:8f0d0ae0a077 1150 multicast = 1;
dudmuck 0:8f0d0ae0a077 1151 nwkSKey = curMulticastParams->NwkSKey;
dudmuck 0:8f0d0ae0a077 1152 appSKey = curMulticastParams->AppSKey;
dudmuck 0:8f0d0ae0a077 1153 downLinkCounter = curMulticastParams->DownLinkCounter;
dudmuck 0:8f0d0ae0a077 1154 break;
dudmuck 0:8f0d0ae0a077 1155 }
dudmuck 0:8f0d0ae0a077 1156 curMulticastParams = curMulticastParams->Next;
dudmuck 0:8f0d0ae0a077 1157 }
dudmuck 0:8f0d0ae0a077 1158 if( multicast == 0 )
dudmuck 0:8f0d0ae0a077 1159 {
dudmuck 0:8f0d0ae0a077 1160 // We are not the destination of this frame.
dudmuck 0:8f0d0ae0a077 1161 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_ADDRESS_FAIL;
dudmuck 0:8f0d0ae0a077 1162 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1163 return;
dudmuck 0:8f0d0ae0a077 1164 }
dudmuck 0:8f0d0ae0a077 1165 }
dudmuck 0:8f0d0ae0a077 1166 else
dudmuck 0:8f0d0ae0a077 1167 {
dudmuck 0:8f0d0ae0a077 1168 multicast = 0;
dudmuck 0:8f0d0ae0a077 1169 nwkSKey = LoRaMacNwkSKey;
dudmuck 0:8f0d0ae0a077 1170 appSKey = LoRaMacAppSKey;
dudmuck 0:8f0d0ae0a077 1171 downLinkCounter = DownLinkCounter;
dudmuck 0:8f0d0ae0a077 1172 }
dudmuck 0:8f0d0ae0a077 1173
dudmuck 0:8f0d0ae0a077 1174 fCtrl.Value = payload[pktHeaderLen++];
dudmuck 0:8f0d0ae0a077 1175
dudmuck 0:8f0d0ae0a077 1176 sequenceCounter = ( uint16_t )payload[pktHeaderLen++];
dudmuck 0:8f0d0ae0a077 1177 sequenceCounter |= ( uint16_t )payload[pktHeaderLen++] << 8;
dudmuck 0:8f0d0ae0a077 1178
dudmuck 0:8f0d0ae0a077 1179 appPayloadStartIndex = 8 + fCtrl.Bits.FOptsLen;
dudmuck 0:8f0d0ae0a077 1180
dudmuck 0:8f0d0ae0a077 1181 micRx |= ( uint32_t )payload[size - LORAMAC_MFR_LEN];
dudmuck 0:8f0d0ae0a077 1182 micRx |= ( ( uint32_t )payload[size - LORAMAC_MFR_LEN + 1] << 8 );
dudmuck 0:8f0d0ae0a077 1183 micRx |= ( ( uint32_t )payload[size - LORAMAC_MFR_LEN + 2] << 16 );
dudmuck 0:8f0d0ae0a077 1184 micRx |= ( ( uint32_t )payload[size - LORAMAC_MFR_LEN + 3] << 24 );
dudmuck 0:8f0d0ae0a077 1185
dudmuck 0:8f0d0ae0a077 1186 sequenceCounterPrev = ( uint16_t )downLinkCounter;
dudmuck 0:8f0d0ae0a077 1187 sequenceCounterDiff = ( sequenceCounter - sequenceCounterPrev );
dudmuck 0:8f0d0ae0a077 1188
dudmuck 0:8f0d0ae0a077 1189 if( sequenceCounterDiff < ( 1 << 15 ) )
dudmuck 0:8f0d0ae0a077 1190 {
dudmuck 0:8f0d0ae0a077 1191 downLinkCounter += sequenceCounterDiff;
dudmuck 0:8f0d0ae0a077 1192 LoRaMacComputeMic( payload, size - LORAMAC_MFR_LEN, nwkSKey, address, DOWN_LINK, downLinkCounter, &mic );
dudmuck 0:8f0d0ae0a077 1193 if( micRx == mic )
dudmuck 0:8f0d0ae0a077 1194 {
dudmuck 0:8f0d0ae0a077 1195 isMicOk = true;
dudmuck 0:8f0d0ae0a077 1196 }
dudmuck 0:8f0d0ae0a077 1197 }
dudmuck 0:8f0d0ae0a077 1198 else
dudmuck 0:8f0d0ae0a077 1199 {
dudmuck 0:8f0d0ae0a077 1200 // check for sequence roll-over
dudmuck 0:8f0d0ae0a077 1201 uint32_t downLinkCounterTmp = downLinkCounter + 0x10000 + ( int16_t )sequenceCounterDiff;
dudmuck 0:8f0d0ae0a077 1202 LoRaMacComputeMic( payload, size - LORAMAC_MFR_LEN, nwkSKey, address, DOWN_LINK, downLinkCounterTmp, &mic );
dudmuck 0:8f0d0ae0a077 1203 if( micRx == mic )
dudmuck 0:8f0d0ae0a077 1204 {
dudmuck 0:8f0d0ae0a077 1205 isMicOk = true;
dudmuck 0:8f0d0ae0a077 1206 downLinkCounter = downLinkCounterTmp;
dudmuck 0:8f0d0ae0a077 1207 }
dudmuck 0:8f0d0ae0a077 1208 }
dudmuck 0:8f0d0ae0a077 1209
dudmuck 0:8f0d0ae0a077 1210 // Check for a the maximum allowed counter difference
dudmuck 0:8f0d0ae0a077 1211 if( sequenceCounterDiff >= MAX_FCNT_GAP )
dudmuck 0:8f0d0ae0a077 1212 {
dudmuck 0:8f0d0ae0a077 1213 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_DOWNLINK_TOO_MANY_FRAMES_LOSS;
dudmuck 0:8f0d0ae0a077 1214 McpsIndication.DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1215 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1216 return;
dudmuck 0:8f0d0ae0a077 1217 }
dudmuck 0:8f0d0ae0a077 1218
dudmuck 0:8f0d0ae0a077 1219 if( isMicOk == true )
dudmuck 0:8f0d0ae0a077 1220 {
dudmuck 0:8f0d0ae0a077 1221 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1222 McpsIndication.Multicast = multicast;
dudmuck 0:8f0d0ae0a077 1223 McpsIndication.FramePending = fCtrl.Bits.FPending;
dudmuck 0:8f0d0ae0a077 1224 McpsIndication.Buffer = NULL;
dudmuck 0:8f0d0ae0a077 1225 McpsIndication.BufferSize = 0;
dudmuck 0:8f0d0ae0a077 1226 McpsIndication.DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1227
dudmuck 0:8f0d0ae0a077 1228 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1229
dudmuck 0:8f0d0ae0a077 1230 MacCommandsBufferToRepeatIndex = 0;
dudmuck 0:8f0d0ae0a077 1231
dudmuck 0:8f0d0ae0a077 1232 // Update 32 bits downlink counter
dudmuck 0:8f0d0ae0a077 1233 if( multicast == 1 )
dudmuck 0:8f0d0ae0a077 1234 {
dudmuck 0:8f0d0ae0a077 1235 McpsIndication.McpsIndication = MCPS_MULTICAST;
dudmuck 0:8f0d0ae0a077 1236
dudmuck 0:8f0d0ae0a077 1237 if( ( curMulticastParams->DownLinkCounter == downLinkCounter ) &&
dudmuck 0:8f0d0ae0a077 1238 ( curMulticastParams->DownLinkCounter != 0 ) )
dudmuck 0:8f0d0ae0a077 1239 {
dudmuck 0:8f0d0ae0a077 1240 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_DOWNLINK_REPEATED;
dudmuck 0:8f0d0ae0a077 1241 McpsIndication.DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1242 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1243 return;
dudmuck 0:8f0d0ae0a077 1244 }
dudmuck 0:8f0d0ae0a077 1245 curMulticastParams->DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1246 }
dudmuck 0:8f0d0ae0a077 1247 else
dudmuck 0:8f0d0ae0a077 1248 {
dudmuck 0:8f0d0ae0a077 1249 if( macHdr.Bits.MType == FRAME_TYPE_DATA_CONFIRMED_DOWN )
dudmuck 0:8f0d0ae0a077 1250 {
dudmuck 0:8f0d0ae0a077 1251 SrvAckRequested = true;
dudmuck 0:8f0d0ae0a077 1252 McpsIndication.McpsIndication = MCPS_CONFIRMED;
dudmuck 0:8f0d0ae0a077 1253
dudmuck 0:8f0d0ae0a077 1254 if( ( DownLinkCounter == downLinkCounter ) &&
dudmuck 0:8f0d0ae0a077 1255 ( DownLinkCounter != 0 ) )
dudmuck 0:8f0d0ae0a077 1256 {
dudmuck 0:8f0d0ae0a077 1257 // Duplicated confirmed downlink. Skip indication.
dudmuck 0:8f0d0ae0a077 1258 // In this case, the MAC layer shall accept the MAC commands
dudmuck 0:8f0d0ae0a077 1259 // which are included in the downlink retransmission.
dudmuck 0:8f0d0ae0a077 1260 // It should not provide the same frame to the application
dudmuck 0:8f0d0ae0a077 1261 // layer again.
dudmuck 0:8f0d0ae0a077 1262 skipIndication = true;
dudmuck 0:8f0d0ae0a077 1263 }
dudmuck 0:8f0d0ae0a077 1264 }
dudmuck 0:8f0d0ae0a077 1265 else
dudmuck 0:8f0d0ae0a077 1266 {
dudmuck 0:8f0d0ae0a077 1267 SrvAckRequested = false;
dudmuck 0:8f0d0ae0a077 1268 McpsIndication.McpsIndication = MCPS_UNCONFIRMED;
dudmuck 0:8f0d0ae0a077 1269
dudmuck 0:8f0d0ae0a077 1270 if( ( DownLinkCounter == downLinkCounter ) &&
dudmuck 0:8f0d0ae0a077 1271 ( DownLinkCounter != 0 ) )
dudmuck 0:8f0d0ae0a077 1272 {
dudmuck 0:8f0d0ae0a077 1273 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_DOWNLINK_REPEATED;
dudmuck 0:8f0d0ae0a077 1274 McpsIndication.DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1275 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1276 return;
dudmuck 0:8f0d0ae0a077 1277 }
dudmuck 0:8f0d0ae0a077 1278 }
dudmuck 0:8f0d0ae0a077 1279 DownLinkCounter = downLinkCounter;
dudmuck 0:8f0d0ae0a077 1280 }
dudmuck 0:8f0d0ae0a077 1281
dudmuck 0:8f0d0ae0a077 1282 // This must be done before parsing the payload and the MAC commands.
dudmuck 0:8f0d0ae0a077 1283 // We need to reset the MacCommandsBufferIndex here, since we need
dudmuck 0:8f0d0ae0a077 1284 // to take retransmissions and repititions into account. Error cases
dudmuck 0:8f0d0ae0a077 1285 // will be handled in function OnMacStateCheckTimerEvent.
dudmuck 0:8f0d0ae0a077 1286 if( McpsConfirm.McpsRequest == MCPS_CONFIRMED )
dudmuck 0:8f0d0ae0a077 1287 {
dudmuck 0:8f0d0ae0a077 1288 if( fCtrl.Bits.Ack == 1 )
dudmuck 0:8f0d0ae0a077 1289 {// Reset MacCommandsBufferIndex when we have received an ACK.
dudmuck 0:8f0d0ae0a077 1290 MacCommandsBufferIndex = 0;
dudmuck 0:8f0d0ae0a077 1291 }
dudmuck 0:8f0d0ae0a077 1292 }
dudmuck 0:8f0d0ae0a077 1293 else
dudmuck 0:8f0d0ae0a077 1294 {// Reset the variable if we have received any valid frame.
dudmuck 0:8f0d0ae0a077 1295 MacCommandsBufferIndex = 0;
dudmuck 0:8f0d0ae0a077 1296 }
dudmuck 0:8f0d0ae0a077 1297
dudmuck 0:8f0d0ae0a077 1298 // Process payload and MAC commands
dudmuck 0:8f0d0ae0a077 1299 if( ( ( size - 4 ) - appPayloadStartIndex ) > 0 )
dudmuck 0:8f0d0ae0a077 1300 {
dudmuck 0:8f0d0ae0a077 1301 port = payload[appPayloadStartIndex++];
dudmuck 0:8f0d0ae0a077 1302 frameLen = ( size - 4 ) - appPayloadStartIndex;
dudmuck 0:8f0d0ae0a077 1303
dudmuck 0:8f0d0ae0a077 1304 McpsIndication.Port = port;
dudmuck 0:8f0d0ae0a077 1305
dudmuck 0:8f0d0ae0a077 1306 if( port == 0 )
dudmuck 0:8f0d0ae0a077 1307 {
dudmuck 0:8f0d0ae0a077 1308 // Only allow frames which do not have fOpts
dudmuck 0:8f0d0ae0a077 1309 if( fCtrl.Bits.FOptsLen == 0 )
dudmuck 0:8f0d0ae0a077 1310 {
dudmuck 0:8f0d0ae0a077 1311 LoRaMacPayloadDecrypt( payload + appPayloadStartIndex,
dudmuck 0:8f0d0ae0a077 1312 frameLen,
dudmuck 0:8f0d0ae0a077 1313 nwkSKey,
dudmuck 0:8f0d0ae0a077 1314 address,
dudmuck 0:8f0d0ae0a077 1315 DOWN_LINK,
dudmuck 0:8f0d0ae0a077 1316 downLinkCounter,
dudmuck 0:8f0d0ae0a077 1317 LoRaMacRxPayload );
dudmuck 0:8f0d0ae0a077 1318
dudmuck 0:8f0d0ae0a077 1319 // Decode frame payload MAC commands
dudmuck 0:8f0d0ae0a077 1320 ProcessMacCommands( LoRaMacRxPayload, 0, frameLen, snr );
dudmuck 0:8f0d0ae0a077 1321 }
dudmuck 0:8f0d0ae0a077 1322 else
dudmuck 0:8f0d0ae0a077 1323 {
dudmuck 0:8f0d0ae0a077 1324 skipIndication = true;
dudmuck 0:8f0d0ae0a077 1325 }
dudmuck 0:8f0d0ae0a077 1326 }
dudmuck 0:8f0d0ae0a077 1327 else
dudmuck 0:8f0d0ae0a077 1328 {
dudmuck 0:8f0d0ae0a077 1329 if( fCtrl.Bits.FOptsLen > 0 )
dudmuck 0:8f0d0ae0a077 1330 {
dudmuck 0:8f0d0ae0a077 1331 // Decode Options field MAC commands. Omit the fPort.
dudmuck 0:8f0d0ae0a077 1332 ProcessMacCommands( payload, 8, appPayloadStartIndex - 1, snr );
dudmuck 0:8f0d0ae0a077 1333 }
dudmuck 0:8f0d0ae0a077 1334
dudmuck 0:8f0d0ae0a077 1335 LoRaMacPayloadDecrypt( payload + appPayloadStartIndex,
dudmuck 0:8f0d0ae0a077 1336 frameLen,
dudmuck 0:8f0d0ae0a077 1337 appSKey,
dudmuck 0:8f0d0ae0a077 1338 address,
dudmuck 0:8f0d0ae0a077 1339 DOWN_LINK,
dudmuck 0:8f0d0ae0a077 1340 downLinkCounter,
dudmuck 0:8f0d0ae0a077 1341 LoRaMacRxPayload );
dudmuck 0:8f0d0ae0a077 1342
dudmuck 0:8f0d0ae0a077 1343 if( skipIndication == false )
dudmuck 0:8f0d0ae0a077 1344 {
dudmuck 0:8f0d0ae0a077 1345 McpsIndication.Buffer = LoRaMacRxPayload;
dudmuck 0:8f0d0ae0a077 1346 McpsIndication.BufferSize = frameLen;
dudmuck 0:8f0d0ae0a077 1347 McpsIndication.RxData = true;
dudmuck 0:8f0d0ae0a077 1348 }
dudmuck 0:8f0d0ae0a077 1349 }
dudmuck 0:8f0d0ae0a077 1350 }
dudmuck 0:8f0d0ae0a077 1351 else
dudmuck 0:8f0d0ae0a077 1352 {
dudmuck 0:8f0d0ae0a077 1353 if( fCtrl.Bits.FOptsLen > 0 )
dudmuck 0:8f0d0ae0a077 1354 {
dudmuck 0:8f0d0ae0a077 1355 // Decode Options field MAC commands
dudmuck 0:8f0d0ae0a077 1356 ProcessMacCommands( payload, 8, appPayloadStartIndex, snr );
dudmuck 0:8f0d0ae0a077 1357 }
dudmuck 0:8f0d0ae0a077 1358 }
dudmuck 0:8f0d0ae0a077 1359
dudmuck 0:8f0d0ae0a077 1360 if( skipIndication == false )
dudmuck 0:8f0d0ae0a077 1361 {
dudmuck 0:8f0d0ae0a077 1362 // Check if the frame is an acknowledgement
dudmuck 0:8f0d0ae0a077 1363 if( fCtrl.Bits.Ack == 1 )
dudmuck 0:8f0d0ae0a077 1364 {
dudmuck 0:8f0d0ae0a077 1365 McpsConfirm.AckReceived = true;
dudmuck 0:8f0d0ae0a077 1366 McpsIndication.AckReceived = true;
dudmuck 0:8f0d0ae0a077 1367
dudmuck 0:8f0d0ae0a077 1368 // Stop the AckTimeout timer as no more retransmissions
dudmuck 0:8f0d0ae0a077 1369 // are needed.
dudmuck 0:8f0d0ae0a077 1370 }
dudmuck 0:8f0d0ae0a077 1371 else
dudmuck 0:8f0d0ae0a077 1372 {
dudmuck 0:8f0d0ae0a077 1373 McpsConfirm.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1374 }
dudmuck 0:8f0d0ae0a077 1375 }
dudmuck 0:8f0d0ae0a077 1376 // Provide always an indication, skip the callback to the user application,
dudmuck 0:8f0d0ae0a077 1377 // in case of a confirmed downlink retransmission.
dudmuck 0:8f0d0ae0a077 1378 LoRaMacFlags.Bits.McpsInd = 1;
dudmuck 0:8f0d0ae0a077 1379 LoRaMacFlags.Bits.McpsIndSkip = skipIndication;
dudmuck 0:8f0d0ae0a077 1380 }
dudmuck 0:8f0d0ae0a077 1381 else
dudmuck 0:8f0d0ae0a077 1382 {
dudmuck 0:8f0d0ae0a077 1383 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_MIC_FAIL;
dudmuck 5:c108560af4c3 1384 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_MIC_FAIL;
dudmuck 0:8f0d0ae0a077 1385 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1386 return;
dudmuck 0:8f0d0ae0a077 1387 }
dudmuck 0:8f0d0ae0a077 1388 }
dudmuck 0:8f0d0ae0a077 1389 break;
dudmuck 0:8f0d0ae0a077 1390 case FRAME_TYPE_PROPRIETARY:
dudmuck 0:8f0d0ae0a077 1391 {
dudmuck 0:8f0d0ae0a077 1392 memcpy1( LoRaMacRxPayload, &payload[pktHeaderLen], size );
dudmuck 0:8f0d0ae0a077 1393
dudmuck 0:8f0d0ae0a077 1394 McpsIndication.McpsIndication = MCPS_PROPRIETARY;
dudmuck 0:8f0d0ae0a077 1395 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1396 McpsIndication.Buffer = LoRaMacRxPayload;
dudmuck 0:8f0d0ae0a077 1397 McpsIndication.BufferSize = size - pktHeaderLen;
dudmuck 0:8f0d0ae0a077 1398
dudmuck 0:8f0d0ae0a077 1399 LoRaMacFlags.Bits.McpsInd = 1;
dudmuck 0:8f0d0ae0a077 1400 break;
dudmuck 0:8f0d0ae0a077 1401 }
dudmuck 0:8f0d0ae0a077 1402 default:
dudmuck 2:f2d9aa163652 1403 McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_RX_MTYPE;
dudmuck 5:c108560af4c3 1404 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_RX_MTYPE;
dudmuck 0:8f0d0ae0a077 1405 PrepareRxDoneAbort( );
dudmuck 0:8f0d0ae0a077 1406 break;
dudmuck 0:8f0d0ae0a077 1407 }
dudmuck 0:8f0d0ae0a077 1408 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 1409
dudmuck 1:53c30224eda8 1410 /* run mac check quickly, but not immedately (for isr_printf) */
dudmuck 1:53c30224eda8 1411 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, 50000);
dudmuck 1:53c30224eda8 1412 } // ..OnRadioRxDone();
dudmuck 0:8f0d0ae0a077 1413
dudmuck 0:8f0d0ae0a077 1414 static void OnRadioTxTimeout( void )
dudmuck 0:8f0d0ae0a077 1415 {
dudmuck 0:8f0d0ae0a077 1416 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 1417
dudmuck 0:8f0d0ae0a077 1418 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 1419 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 1420 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 1421 }
dudmuck 0:8f0d0ae0a077 1422
dudmuck 0:8f0d0ae0a077 1423 static void OnRadioRxError( void )
dudmuck 0:8f0d0ae0a077 1424 {
dudmuck 0:8f0d0ae0a077 1425 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 1426
dudmuck 0:8f0d0ae0a077 1427 if( NodeAckRequested == true )
dudmuck 0:8f0d0ae0a077 1428 {
dudmuck 0:8f0d0ae0a077 1429 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_ERROR;
dudmuck 0:8f0d0ae0a077 1430 }
dudmuck 0:8f0d0ae0a077 1431 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_ERROR;
dudmuck 0:8f0d0ae0a077 1432
dudmuck 0:8f0d0ae0a077 1433 if ((lp_timer.read_us() - AggregatedLastTxDoneTime_us) >= RxWindowDelay_us )
dudmuck 0:8f0d0ae0a077 1434 {
dudmuck 0:8f0d0ae0a077 1435 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 1436 }
dudmuck 0:8f0d0ae0a077 1437 }
dudmuck 0:8f0d0ae0a077 1438
dudmuck 0:8f0d0ae0a077 1439 static void OnRadioRxTimeout( void )
dudmuck 0:8f0d0ae0a077 1440 {
dudmuck 0:8f0d0ae0a077 1441 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 1442
dudmuck 0:8f0d0ae0a077 1443 if (expecting_beacon) {
dudmuck 0:8f0d0ae0a077 1444 /* generate simulated last beacon start */
dudmuck 0:8f0d0ae0a077 1445 BeaconCtx.LastBeaconStart_us += BEACON_INTERVAL_us + BeaconCtx.BeaconRxTimerError_us;
dudmuck 0:8f0d0ae0a077 1446
dudmuck 0:8f0d0ae0a077 1447 BeaconCtx.next_beacon_expected_us = BEACON_INTERVAL_us;
dudmuck 0:8f0d0ae0a077 1448 BeaconCtx.num_missed++;
dudmuck 0:8f0d0ae0a077 1449 unsigned now_us = lp_timer.read_us();
dudmuck 0:8f0d0ae0a077 1450 if (BeaconCtx.state == BEACON_STATE_FIRST_ACQ) {
dudmuck 0:8f0d0ae0a077 1451 BeaconCtx.next_beacon_expected_us -= 1000000;
dudmuck 0:8f0d0ae0a077 1452 set_beacon_symbol_timeout(2.000);
dudmuck 0:8f0d0ae0a077 1453 } else {
dudmuck 0:8f0d0ae0a077 1454 BeaconCtx.next_beacon_expected_us += BeaconCtx.BeaconRxTimerError_us;
dudmuck 0:8f0d0ae0a077 1455 // for measurement resolution and temperature drift while missing beacons:
dudmuck 0:8f0d0ae0a077 1456 BeaconCtx.next_beacon_expected_us -= 3000;
dudmuck 0:8f0d0ae0a077 1457 set_beacon_symbol_timeout(BeaconCtx.SymbolTimeout_sec + 0.003);
dudmuck 0:8f0d0ae0a077 1458 }
dudmuck 0:8f0d0ae0a077 1459 unsigned us_since_rx_setup = now_us - BeaconCtx.RxBeaconSetupAt_us;
dudmuck 0:8f0d0ae0a077 1460 BeaconCtx.timeout.attach_us(&OnRxBeaconSetup, BeaconCtx.next_beacon_expected_us - us_since_rx_setup);
dudmuck 0:8f0d0ae0a077 1461
dudmuck 1:53c30224eda8 1462 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 1463
dudmuck 0:8f0d0ae0a077 1464 MlmeIndication.MlmeIndication = MLME_BEACON;
dudmuck 0:8f0d0ae0a077 1465 MlmeIndication.Status = LORAMAC_EVENT_INFO_STATUS_BEACON_LOST;
dudmuck 0:8f0d0ae0a077 1466 LoRaMacPrimitives->MacMlmeIndication( &MlmeIndication );
dudmuck 0:8f0d0ae0a077 1467 //LoRaMacFlags.Bits.MlmeInd = 1;
dudmuck 0:8f0d0ae0a077 1468
dudmuck 0:8f0d0ae0a077 1469 expecting_beacon = false;
dudmuck 0:8f0d0ae0a077 1470 }
dudmuck 0:8f0d0ae0a077 1471
dudmuck 0:8f0d0ae0a077 1472 if( NodeAckRequested == true )
dudmuck 0:8f0d0ae0a077 1473 {
dudmuck 0:8f0d0ae0a077 1474 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 1475 }
dudmuck 0:8f0d0ae0a077 1476 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT;
dudmuck 0:8f0d0ae0a077 1477 LoRaMacFlags.Bits.MacDone = 1;
dudmuck 0:8f0d0ae0a077 1478
dudmuck 1:53c30224eda8 1479 /* run mac check quickly, but not immedately (for isr_printf) */
dudmuck 7:e238827f0e47 1480 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, 50000 + randr(0, 50000));
dudmuck 1:53c30224eda8 1481 } // ..OnRadioRxTimeout();
dudmuck 0:8f0d0ae0a077 1482
dudmuck 0:8f0d0ae0a077 1483 static void OnMacStateCheckTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1484 {
dudmuck 0:8f0d0ae0a077 1485 bool txTimeout = false;
dudmuck 0:8f0d0ae0a077 1486
dudmuck 0:8f0d0ae0a077 1487 if( LoRaMacFlags.Bits.MacDone == 1 )
dudmuck 0:8f0d0ae0a077 1488 {
dudmuck 0:8f0d0ae0a077 1489 if( ( LoRaMacState & LORAMAC_RX_ABORT ) == LORAMAC_RX_ABORT )
dudmuck 0:8f0d0ae0a077 1490 {
dudmuck 0:8f0d0ae0a077 1491 LoRaMacState &= ~LORAMAC_RX_ABORT;
dudmuck 0:8f0d0ae0a077 1492 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 1493 }
dudmuck 0:8f0d0ae0a077 1494
dudmuck 0:8f0d0ae0a077 1495 if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) || ( ( LoRaMacFlags.Bits.McpsReq == 1 ) ) )
dudmuck 0:8f0d0ae0a077 1496 {
dudmuck 0:8f0d0ae0a077 1497 if( ( McpsConfirm.Status == LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT ) ||
dudmuck 0:8f0d0ae0a077 1498 ( MlmeConfirm.Status == LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT ) )
dudmuck 0:8f0d0ae0a077 1499 {
dudmuck 0:8f0d0ae0a077 1500 // Stop transmit cycle due to tx timeout.
dudmuck 0:8f0d0ae0a077 1501 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 1502 MacCommandsBufferIndex = 0;
dudmuck 0:8f0d0ae0a077 1503 McpsConfirm.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1504 McpsConfirm.TxTimeOnAir = 0;
dudmuck 0:8f0d0ae0a077 1505 txTimeout = true;
dudmuck 0:8f0d0ae0a077 1506 }
dudmuck 0:8f0d0ae0a077 1507 }
dudmuck 0:8f0d0ae0a077 1508
dudmuck 0:8f0d0ae0a077 1509 if( ( NodeAckRequested == false ) && ( txTimeout == false ) )
dudmuck 0:8f0d0ae0a077 1510 {
dudmuck 0:8f0d0ae0a077 1511 if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) || ( ( LoRaMacFlags.Bits.McpsReq == 1 ) ) )
dudmuck 0:8f0d0ae0a077 1512 {
dudmuck 0:8f0d0ae0a077 1513 if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) && ( MlmeConfirm.MlmeRequest == MLME_JOIN ) )
dudmuck 0:8f0d0ae0a077 1514 { // Procedure for the join request
dudmuck 0:8f0d0ae0a077 1515
dudmuck 0:8f0d0ae0a077 1516 if( MlmeConfirm.Status == LORAMAC_EVENT_INFO_STATUS_OK )
dudmuck 0:8f0d0ae0a077 1517 { // Node joined successfully
dudmuck 1:53c30224eda8 1518 isr_printf("mac-check-join ok ");
dudmuck 0:8f0d0ae0a077 1519 UpLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1520 ChannelsNbRepCounter = 0;
dudmuck 0:8f0d0ae0a077 1521 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 1522 }
dudmuck 0:8f0d0ae0a077 1523 else
dudmuck 0:8f0d0ae0a077 1524 {
dudmuck 1:53c30224eda8 1525 isr_printf("jrt:%u, maxjrt:%u\r\n", JoinRequestTrials, MaxJoinRequestTrials);
dudmuck 0:8f0d0ae0a077 1526 if( JoinRequestTrials >= MaxJoinRequestTrials )
dudmuck 0:8f0d0ae0a077 1527 {
dudmuck 0:8f0d0ae0a077 1528 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 1:53c30224eda8 1529 isr_printf("tx-run-D\r\n");
dudmuck 0:8f0d0ae0a077 1530 }
dudmuck 0:8f0d0ae0a077 1531 else
dudmuck 0:8f0d0ae0a077 1532 {
dudmuck 0:8f0d0ae0a077 1533 LoRaMacFlags.Bits.MacDone = 0;
dudmuck 0:8f0d0ae0a077 1534 // Sends the same frame again
dudmuck 0:8f0d0ae0a077 1535 OnTxDelayedTimerEvent( );
dudmuck 0:8f0d0ae0a077 1536 }
dudmuck 0:8f0d0ae0a077 1537 }
dudmuck 0:8f0d0ae0a077 1538 }
dudmuck 0:8f0d0ae0a077 1539 } // ..if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) || ( ( LoRaMacFlags.Bits.McpsReq == 1 ) ) )
dudmuck 0:8f0d0ae0a077 1540 } // ..if( ( NodeAckRequested == false ) && ( txTimeout == false ) )
dudmuck 0:8f0d0ae0a077 1541
dudmuck 0:8f0d0ae0a077 1542 if( LoRaMacFlags.Bits.McpsInd == 1 )
dudmuck 0:8f0d0ae0a077 1543 {// Procedure if we received a frame
dudmuck 0:8f0d0ae0a077 1544 if( ( McpsConfirm.AckReceived == true ) /*|| ( AckTimeoutRetriesCounter > AckTimeoutRetries )*/ )
dudmuck 0:8f0d0ae0a077 1545 {
dudmuck 0:8f0d0ae0a077 1546 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 1547 if( IsUpLinkCounterFixed == false )
dudmuck 0:8f0d0ae0a077 1548 {
dudmuck 0:8f0d0ae0a077 1549 UpLinkCounter++;
dudmuck 0:8f0d0ae0a077 1550 }
dudmuck 0:8f0d0ae0a077 1551
dudmuck 0:8f0d0ae0a077 1552 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 1553 }
dudmuck 0:8f0d0ae0a077 1554 }
dudmuck 0:8f0d0ae0a077 1555
dudmuck 0:8f0d0ae0a077 1556 } // ...if( LoRaMacFlags.Bits.MacDone == 1 )
dudmuck 0:8f0d0ae0a077 1557
dudmuck 0:8f0d0ae0a077 1558 // Handle reception for Class B and Class C
dudmuck 0:8f0d0ae0a077 1559 if( ( LoRaMacState & LORAMAC_RX ) == LORAMAC_RX )
dudmuck 0:8f0d0ae0a077 1560 {
dudmuck 0:8f0d0ae0a077 1561 LoRaMacState &= ~LORAMAC_RX;
dudmuck 0:8f0d0ae0a077 1562 }
dudmuck 0:8f0d0ae0a077 1563 if( LoRaMacState == LORAMAC_IDLE )
dudmuck 0:8f0d0ae0a077 1564 {
dudmuck 0:8f0d0ae0a077 1565 if( LoRaMacFlags.Bits.McpsReq == 1 )
dudmuck 0:8f0d0ae0a077 1566 {
dudmuck 0:8f0d0ae0a077 1567 LoRaMacPrimitives->MacMcpsConfirm( &McpsConfirm );
dudmuck 0:8f0d0ae0a077 1568 LoRaMacFlags.Bits.McpsReq = 0;
dudmuck 0:8f0d0ae0a077 1569 }
dudmuck 0:8f0d0ae0a077 1570
dudmuck 0:8f0d0ae0a077 1571 if( LoRaMacFlags.Bits.MlmeReq == 1 )
dudmuck 0:8f0d0ae0a077 1572 {
dudmuck 0:8f0d0ae0a077 1573 LoRaMacPrimitives->MacMlmeConfirm( &MlmeConfirm );
dudmuck 0:8f0d0ae0a077 1574 LoRaMacFlags.Bits.MlmeReq = 0;
dudmuck 0:8f0d0ae0a077 1575 }
dudmuck 0:8f0d0ae0a077 1576
dudmuck 0:8f0d0ae0a077 1577 if( LoRaMacFlags.Bits.MlmeInd == 1 )
dudmuck 0:8f0d0ae0a077 1578 {
dudmuck 0:8f0d0ae0a077 1579 LoRaMacPrimitives->MacMlmeIndication( &MlmeIndication );
dudmuck 0:8f0d0ae0a077 1580 LoRaMacFlags.Bits.MlmeInd = 0;
dudmuck 0:8f0d0ae0a077 1581 }
dudmuck 0:8f0d0ae0a077 1582
dudmuck 0:8f0d0ae0a077 1583 // Procedure done. Reset variables.
dudmuck 0:8f0d0ae0a077 1584 LoRaMacFlags.Bits.MacDone = 0;
dudmuck 0:8f0d0ae0a077 1585 }
dudmuck 0:8f0d0ae0a077 1586 else
dudmuck 0:8f0d0ae0a077 1587 {
dudmuck 0:8f0d0ae0a077 1588 // Operation not finished restart timer
dudmuck 0:8f0d0ae0a077 1589 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 0:8f0d0ae0a077 1590 }
dudmuck 0:8f0d0ae0a077 1591
dudmuck 0:8f0d0ae0a077 1592 if( LoRaMacFlags.Bits.McpsInd == 1 )
dudmuck 0:8f0d0ae0a077 1593 {
dudmuck 0:8f0d0ae0a077 1594 if( LoRaMacFlags.Bits.McpsIndSkip == 0 )
dudmuck 0:8f0d0ae0a077 1595 {
dudmuck 0:8f0d0ae0a077 1596 LoRaMacPrimitives->MacMcpsIndication( &McpsIndication );
dudmuck 0:8f0d0ae0a077 1597 }
dudmuck 0:8f0d0ae0a077 1598 LoRaMacFlags.Bits.McpsIndSkip = 0;
dudmuck 0:8f0d0ae0a077 1599 LoRaMacFlags.Bits.McpsInd = 0;
dudmuck 0:8f0d0ae0a077 1600 }
dudmuck 0:8f0d0ae0a077 1601 } // ..OnMacStateCheckTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1602
dudmuck 0:8f0d0ae0a077 1603 static void OnTxDelayedTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1604 {
dudmuck 0:8f0d0ae0a077 1605 LoRaMacHeader_t macHdr;
dudmuck 0:8f0d0ae0a077 1606 LoRaMacFrameCtrl_t fCtrl;
dudmuck 0:8f0d0ae0a077 1607
dudmuck 0:8f0d0ae0a077 1608 LoRaMacState &= ~LORAMAC_TX_DELAYED;
dudmuck 0:8f0d0ae0a077 1609
dudmuck 0:8f0d0ae0a077 1610 if( ( LoRaMacFlags.Bits.MlmeReq == 1 ) && ( MlmeConfirm.MlmeRequest == MLME_JOIN ) )
dudmuck 0:8f0d0ae0a077 1611 {
dudmuck 0:8f0d0ae0a077 1612 ResetMacParameters( );
dudmuck 0:8f0d0ae0a077 1613 if (++Channel == LORA_MAX_NB_CHANNELS)
dudmuck 0:8f0d0ae0a077 1614 Channel = 0;
dudmuck 1:53c30224eda8 1615 isr_printf("<ch%u>", Channel);
dudmuck 1:53c30224eda8 1616 isr_printf("tx-delayed join ch%u\r\n", Channel);
dudmuck 0:8f0d0ae0a077 1617
dudmuck 0:8f0d0ae0a077 1618 macHdr.Value = 0;
dudmuck 0:8f0d0ae0a077 1619 macHdr.Bits.MType = FRAME_TYPE_JOIN_REQ;
dudmuck 0:8f0d0ae0a077 1620
dudmuck 0:8f0d0ae0a077 1621 fCtrl.Value = 0;
dudmuck 0:8f0d0ae0a077 1622 fCtrl.Bits.Adr = 0;
dudmuck 0:8f0d0ae0a077 1623
dudmuck 0:8f0d0ae0a077 1624 /* In case of join request retransmissions, the stack must prepare
dudmuck 0:8f0d0ae0a077 1625 * the frame again, because the network server keeps track of the random
dudmuck 0:8f0d0ae0a077 1626 * LoRaMacDevNonce values to prevent reply attacks. */
dudmuck 0:8f0d0ae0a077 1627 PrepareFrame( &macHdr, &fCtrl, 0, NULL, 0 );
dudmuck 0:8f0d0ae0a077 1628 }
dudmuck 0:8f0d0ae0a077 1629
dudmuck 0:8f0d0ae0a077 1630 ScheduleTx( );
dudmuck 0:8f0d0ae0a077 1631 }
dudmuck 0:8f0d0ae0a077 1632
dudmuck 0:8f0d0ae0a077 1633 static void OnRxWindowTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1634 {
dudmuck 0:8f0d0ae0a077 1635 Radio.Standby( );
dudmuck 8:ab2f9a8d2eaa 1636 if (expecting_beacon) {
dudmuck 8:ab2f9a8d2eaa 1637 isr_printf("rxwin-during-beacon\r\n");
dudmuck 8:ab2f9a8d2eaa 1638 /* TODO: report failure */
dudmuck 8:ab2f9a8d2eaa 1639 } else {
dudmuck 8:ab2f9a8d2eaa 1640 RxWindowSetup( LORAMAC_FIRST_CHANNEL + ( Channel * LORAMAC_STEPWIDTH_CHANNEL), RxWindowsParam.Datarate, RxWindowsParam.Bandwidth, RxWindowsParam.RxWindowTimeout, false );
dudmuck 8:ab2f9a8d2eaa 1641 }
dudmuck 0:8f0d0ae0a077 1642
dudmuck 0:8f0d0ae0a077 1643 /* no retrying TX in this class of operation */
dudmuck 0:8f0d0ae0a077 1644 LoRaMacState &= ~LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 1645 }
dudmuck 0:8f0d0ae0a077 1646
dudmuck 0:8f0d0ae0a077 1647 static void OnAckTimeoutTimerEvent( void )
dudmuck 0:8f0d0ae0a077 1648 {
dudmuck 0:8f0d0ae0a077 1649 if( NodeAckRequested == true )
dudmuck 0:8f0d0ae0a077 1650 {
dudmuck 0:8f0d0ae0a077 1651 LoRaMacState &= ~LORAMAC_ACK_REQ;
dudmuck 0:8f0d0ae0a077 1652 }
dudmuck 0:8f0d0ae0a077 1653 }
dudmuck 0:8f0d0ae0a077 1654
dudmuck 0:8f0d0ae0a077 1655 static bool RxWindowSetup( uint32_t freq, int8_t datarate, uint32_t bandwidth, uint16_t timeout, bool rxContinuous )
dudmuck 0:8f0d0ae0a077 1656 {
dudmuck 0:8f0d0ae0a077 1657 uint8_t downlinkDatarate = Datarates[datarate];
dudmuck 0:8f0d0ae0a077 1658 RadioModems_t modem;
dudmuck 0:8f0d0ae0a077 1659
dudmuck 0:8f0d0ae0a077 1660 if( Radio.GetStatus( ) == RF_IDLE )
dudmuck 0:8f0d0ae0a077 1661 {
dudmuck 0:8f0d0ae0a077 1662 Radio.SetChannel( freq );
dudmuck 0:8f0d0ae0a077 1663
dudmuck 0:8f0d0ae0a077 1664 // Store downlink datarate
dudmuck 0:8f0d0ae0a077 1665 McpsIndication.RxDatarate = ( uint8_t ) datarate;
dudmuck 0:8f0d0ae0a077 1666
dudmuck 0:8f0d0ae0a077 1667 modem = MODEM_LORA;
dudmuck 0:8f0d0ae0a077 1668 Radio.SetRxConfig( modem, bandwidth, downlinkDatarate, 1, 0, 8, timeout, false, 0, false, 0, 0, true, rxContinuous );
dudmuck 0:8f0d0ae0a077 1669 Radio.SetMaxPayloadLength( MODEM_LORA, 255 );
dudmuck 0:8f0d0ae0a077 1670
dudmuck 0:8f0d0ae0a077 1671 if( rxContinuous == false )
dudmuck 0:8f0d0ae0a077 1672 {
dudmuck 0:8f0d0ae0a077 1673 Radio.Rx( LoRaMacParams.MaxRxWindow );
dudmuck 0:8f0d0ae0a077 1674 }
dudmuck 0:8f0d0ae0a077 1675 else
dudmuck 0:8f0d0ae0a077 1676 {
dudmuck 0:8f0d0ae0a077 1677 Radio.Rx( 0 ); // Continuous mode
dudmuck 0:8f0d0ae0a077 1678 }
dudmuck 0:8f0d0ae0a077 1679 return true;
dudmuck 0:8f0d0ae0a077 1680 }
dudmuck 0:8f0d0ae0a077 1681 return false;
dudmuck 0:8f0d0ae0a077 1682 }
dudmuck 0:8f0d0ae0a077 1683
dudmuck 0:8f0d0ae0a077 1684 static bool ValueInRange( int8_t value, int8_t min, int8_t max )
dudmuck 0:8f0d0ae0a077 1685 {
dudmuck 0:8f0d0ae0a077 1686 if( ( value >= min ) && ( value <= max ) )
dudmuck 0:8f0d0ae0a077 1687 {
dudmuck 0:8f0d0ae0a077 1688 return true;
dudmuck 0:8f0d0ae0a077 1689 }
dudmuck 0:8f0d0ae0a077 1690 return false;
dudmuck 0:8f0d0ae0a077 1691 }
dudmuck 0:8f0d0ae0a077 1692
dudmuck 0:8f0d0ae0a077 1693 static LoRaMacStatus_t AddMacCommand( uint8_t cmd, uint8_t p1, uint8_t p2 )
dudmuck 0:8f0d0ae0a077 1694 {
dudmuck 0:8f0d0ae0a077 1695 LoRaMacStatus_t status = LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 1696 // The maximum buffer length must take MAC commands to re-send into account.
dudmuck 0:8f0d0ae0a077 1697 uint8_t bufLen = LORA_MAC_COMMAND_MAX_LENGTH - MacCommandsBufferToRepeatIndex;
dudmuck 0:8f0d0ae0a077 1698
dudmuck 0:8f0d0ae0a077 1699 switch( cmd )
dudmuck 0:8f0d0ae0a077 1700 {
dudmuck 0:8f0d0ae0a077 1701 case MOTE_MAC_LINK_CHECK_REQ:
dudmuck 0:8f0d0ae0a077 1702 if( MacCommandsBufferIndex < bufLen )
dudmuck 0:8f0d0ae0a077 1703 {
dudmuck 0:8f0d0ae0a077 1704 MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
dudmuck 0:8f0d0ae0a077 1705 // No payload for this command
dudmuck 0:8f0d0ae0a077 1706 status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1707 }
dudmuck 0:8f0d0ae0a077 1708 break;
dudmuck 0:8f0d0ae0a077 1709 case MOTE_MAC_RX_PARAM_SETUP_ANS:
dudmuck 0:8f0d0ae0a077 1710 if( MacCommandsBufferIndex < ( bufLen - 1 ) )
dudmuck 0:8f0d0ae0a077 1711 {
dudmuck 0:8f0d0ae0a077 1712 MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
dudmuck 0:8f0d0ae0a077 1713 // Status: Datarate ACK, Channel ACK
dudmuck 0:8f0d0ae0a077 1714 MacCommandsBuffer[MacCommandsBufferIndex++] = p1;
dudmuck 0:8f0d0ae0a077 1715 status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1716 }
dudmuck 0:8f0d0ae0a077 1717 break;
dudmuck 0:8f0d0ae0a077 1718 case MOTE_MAC_DEV_STATUS_ANS:
dudmuck 0:8f0d0ae0a077 1719 if( MacCommandsBufferIndex < ( bufLen - 2 ) )
dudmuck 0:8f0d0ae0a077 1720 {
dudmuck 0:8f0d0ae0a077 1721 MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
dudmuck 0:8f0d0ae0a077 1722 // 1st byte Battery
dudmuck 0:8f0d0ae0a077 1723 // 2nd byte Margin
dudmuck 0:8f0d0ae0a077 1724 MacCommandsBuffer[MacCommandsBufferIndex++] = p1;
dudmuck 0:8f0d0ae0a077 1725 MacCommandsBuffer[MacCommandsBufferIndex++] = p2;
dudmuck 0:8f0d0ae0a077 1726 status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1727 }
dudmuck 0:8f0d0ae0a077 1728 break;
dudmuck 0:8f0d0ae0a077 1729 case MOTE_MAC_RX_TIMING_SETUP_ANS:
dudmuck 0:8f0d0ae0a077 1730 if( MacCommandsBufferIndex < bufLen )
dudmuck 0:8f0d0ae0a077 1731 {
dudmuck 0:8f0d0ae0a077 1732 MacCommandsBuffer[MacCommandsBufferIndex++] = cmd;
dudmuck 0:8f0d0ae0a077 1733 // No payload for this answer
dudmuck 0:8f0d0ae0a077 1734 status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1735 }
dudmuck 0:8f0d0ae0a077 1736 break;
dudmuck 0:8f0d0ae0a077 1737 default:
dudmuck 0:8f0d0ae0a077 1738 return LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 1739 }
dudmuck 0:8f0d0ae0a077 1740 if( status == LORAMAC_STATUS_OK )
dudmuck 0:8f0d0ae0a077 1741 {
dudmuck 0:8f0d0ae0a077 1742 MacCommandsInNextTx = true;
dudmuck 0:8f0d0ae0a077 1743 }
dudmuck 0:8f0d0ae0a077 1744 return status;
dudmuck 0:8f0d0ae0a077 1745 }
dudmuck 0:8f0d0ae0a077 1746
dudmuck 0:8f0d0ae0a077 1747 static uint8_t ParseMacCommandsToRepeat( uint8_t* cmdBufIn, uint8_t length, uint8_t* cmdBufOut )
dudmuck 0:8f0d0ae0a077 1748 {
dudmuck 0:8f0d0ae0a077 1749 uint8_t i = 0;
dudmuck 0:8f0d0ae0a077 1750 uint8_t cmdCount = 0;
dudmuck 0:8f0d0ae0a077 1751
dudmuck 0:8f0d0ae0a077 1752 if( ( cmdBufIn == NULL ) || ( cmdBufOut == NULL ) )
dudmuck 0:8f0d0ae0a077 1753 {
dudmuck 0:8f0d0ae0a077 1754 return 0;
dudmuck 0:8f0d0ae0a077 1755 }
dudmuck 0:8f0d0ae0a077 1756
dudmuck 0:8f0d0ae0a077 1757 for( i = 0; i < length; i++ )
dudmuck 0:8f0d0ae0a077 1758 {
dudmuck 0:8f0d0ae0a077 1759 switch( cmdBufIn[i] )
dudmuck 0:8f0d0ae0a077 1760 {
dudmuck 0:8f0d0ae0a077 1761 // STICKY
dudmuck 0:8f0d0ae0a077 1762 case MOTE_MAC_RX_PARAM_SETUP_ANS:
dudmuck 0:8f0d0ae0a077 1763 {
dudmuck 0:8f0d0ae0a077 1764 cmdBufOut[cmdCount++] = cmdBufIn[i++];
dudmuck 0:8f0d0ae0a077 1765 cmdBufOut[cmdCount++] = cmdBufIn[i];
dudmuck 0:8f0d0ae0a077 1766 break;
dudmuck 0:8f0d0ae0a077 1767 }
dudmuck 0:8f0d0ae0a077 1768 case MOTE_MAC_RX_TIMING_SETUP_ANS:
dudmuck 0:8f0d0ae0a077 1769 {
dudmuck 0:8f0d0ae0a077 1770 cmdBufOut[cmdCount++] = cmdBufIn[i];
dudmuck 0:8f0d0ae0a077 1771 break;
dudmuck 0:8f0d0ae0a077 1772 }
dudmuck 0:8f0d0ae0a077 1773 // NON-STICKY
dudmuck 0:8f0d0ae0a077 1774 case MOTE_MAC_DEV_STATUS_ANS:
dudmuck 0:8f0d0ae0a077 1775 { // 2 bytes payload
dudmuck 0:8f0d0ae0a077 1776 i += 2;
dudmuck 0:8f0d0ae0a077 1777 break;
dudmuck 0:8f0d0ae0a077 1778 }
dudmuck 0:8f0d0ae0a077 1779 case MOTE_MAC_LINK_CHECK_REQ:
dudmuck 0:8f0d0ae0a077 1780 { // 0 byte payload
dudmuck 0:8f0d0ae0a077 1781 break;
dudmuck 0:8f0d0ae0a077 1782 }
dudmuck 0:8f0d0ae0a077 1783 default:
dudmuck 0:8f0d0ae0a077 1784 break;
dudmuck 0:8f0d0ae0a077 1785 }
dudmuck 0:8f0d0ae0a077 1786 }
dudmuck 0:8f0d0ae0a077 1787
dudmuck 0:8f0d0ae0a077 1788 return cmdCount;
dudmuck 0:8f0d0ae0a077 1789 }
dudmuck 0:8f0d0ae0a077 1790
dudmuck 0:8f0d0ae0a077 1791 static void ProcessMacCommands( uint8_t *payload, uint8_t macIndex, uint8_t commandsSize, uint8_t snr )
dudmuck 0:8f0d0ae0a077 1792 {
dudmuck 0:8f0d0ae0a077 1793 while( macIndex < commandsSize )
dudmuck 0:8f0d0ae0a077 1794 {
dudmuck 0:8f0d0ae0a077 1795 // Decode Frame MAC commands
dudmuck 0:8f0d0ae0a077 1796 switch( payload[macIndex++] )
dudmuck 0:8f0d0ae0a077 1797 {
dudmuck 0:8f0d0ae0a077 1798 case SRV_MAC_LINK_CHECK_ANS:
dudmuck 0:8f0d0ae0a077 1799 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_OK;
dudmuck 0:8f0d0ae0a077 1800 MlmeConfirm.DemodMargin = payload[macIndex++];
dudmuck 0:8f0d0ae0a077 1801 MlmeConfirm.NbGateways = payload[macIndex++];
dudmuck 0:8f0d0ae0a077 1802 break;
dudmuck 0:8f0d0ae0a077 1803 case SRV_MAC_DEV_STATUS_REQ:
dudmuck 0:8f0d0ae0a077 1804 {
dudmuck 0:8f0d0ae0a077 1805 uint8_t batteryLevel = BAT_LEVEL_NO_MEASURE;
dudmuck 0:8f0d0ae0a077 1806 if( ( LoRaMacCallbacks != NULL ) && ( LoRaMacCallbacks->GetBatteryLevel != NULL ) )
dudmuck 0:8f0d0ae0a077 1807 {
dudmuck 0:8f0d0ae0a077 1808 batteryLevel = LoRaMacCallbacks->GetBatteryLevel( );
dudmuck 0:8f0d0ae0a077 1809 }
dudmuck 0:8f0d0ae0a077 1810 AddMacCommand( MOTE_MAC_DEV_STATUS_ANS, batteryLevel, snr );
dudmuck 0:8f0d0ae0a077 1811 break;
dudmuck 0:8f0d0ae0a077 1812 }
dudmuck 0:8f0d0ae0a077 1813 case SRV_MAC_RX_TIMING_SETUP_REQ:
dudmuck 0:8f0d0ae0a077 1814 {
dudmuck 0:8f0d0ae0a077 1815 uint8_t delay = payload[macIndex++] & 0x0F;
dudmuck 0:8f0d0ae0a077 1816
dudmuck 0:8f0d0ae0a077 1817 if( delay == 0 )
dudmuck 0:8f0d0ae0a077 1818 {
dudmuck 0:8f0d0ae0a077 1819 delay++;
dudmuck 0:8f0d0ae0a077 1820 }
dudmuck 0:8f0d0ae0a077 1821 LoRaMacParams.ReceiveDelay_us = delay * 1e6;
dudmuck 0:8f0d0ae0a077 1822 AddMacCommand( MOTE_MAC_RX_TIMING_SETUP_ANS, 0, 0 );
dudmuck 0:8f0d0ae0a077 1823 }
dudmuck 0:8f0d0ae0a077 1824 break;
dudmuck 0:8f0d0ae0a077 1825 default:
dudmuck 0:8f0d0ae0a077 1826 // Unknown command. ABORT MAC commands processing
dudmuck 0:8f0d0ae0a077 1827 return;
dudmuck 0:8f0d0ae0a077 1828 }
dudmuck 0:8f0d0ae0a077 1829 }
dudmuck 0:8f0d0ae0a077 1830 }
dudmuck 0:8f0d0ae0a077 1831
dudmuck 0:8f0d0ae0a077 1832 LoRaMacStatus_t Send( LoRaMacHeader_t *macHdr, uint8_t fPort, void *fBuffer, uint16_t fBufferSize )
dudmuck 0:8f0d0ae0a077 1833 {
dudmuck 0:8f0d0ae0a077 1834 LoRaMacFrameCtrl_t fCtrl;
dudmuck 0:8f0d0ae0a077 1835 LoRaMacStatus_t status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 1836
dudmuck 0:8f0d0ae0a077 1837 fCtrl.Value = 0;
dudmuck 0:8f0d0ae0a077 1838 fCtrl.Bits.FOptsLen = 0;
dudmuck 0:8f0d0ae0a077 1839 fCtrl.Bits.FPending = 0;
dudmuck 0:8f0d0ae0a077 1840 fCtrl.Bits.Ack = false;
dudmuck 0:8f0d0ae0a077 1841 fCtrl.Bits.AdrAckReq = false;
dudmuck 0:8f0d0ae0a077 1842 fCtrl.Bits.Adr = false;
dudmuck 0:8f0d0ae0a077 1843
dudmuck 0:8f0d0ae0a077 1844 // Prepare the frame
dudmuck 0:8f0d0ae0a077 1845 status = PrepareFrame( macHdr, &fCtrl, fPort, fBuffer, fBufferSize );
dudmuck 0:8f0d0ae0a077 1846
dudmuck 0:8f0d0ae0a077 1847 // Validate status
dudmuck 0:8f0d0ae0a077 1848 if( status != LORAMAC_STATUS_OK )
dudmuck 0:8f0d0ae0a077 1849 {
dudmuck 0:8f0d0ae0a077 1850 return status;
dudmuck 0:8f0d0ae0a077 1851 }
dudmuck 0:8f0d0ae0a077 1852
dudmuck 0:8f0d0ae0a077 1853 // Reset confirm parameters
dudmuck 0:8f0d0ae0a077 1854 McpsConfirm.AckReceived = false;
dudmuck 0:8f0d0ae0a077 1855 McpsConfirm.UpLinkCounter = UpLinkCounter;
dudmuck 0:8f0d0ae0a077 1856
dudmuck 0:8f0d0ae0a077 1857 status = ScheduleTx( );
dudmuck 0:8f0d0ae0a077 1858
dudmuck 0:8f0d0ae0a077 1859 return status;
dudmuck 0:8f0d0ae0a077 1860 }
dudmuck 0:8f0d0ae0a077 1861
dudmuck 0:8f0d0ae0a077 1862 static LoRaMacStatus_t ScheduleTx( void )
dudmuck 0:8f0d0ae0a077 1863 {
dudmuck 0:8f0d0ae0a077 1864 // Compute Rx1 windows parameters
dudmuck 0:8f0d0ae0a077 1865 if( IsLoRaMacNetworkJoined == false )
dudmuck 0:8f0d0ae0a077 1866 {
dudmuck 0:8f0d0ae0a077 1867 RxWindowDelay_us = LoRaMacParams.JoinAcceptDelay_us + RxWindowsParam.RxOffset; // dont care
dudmuck 0:8f0d0ae0a077 1868 }
dudmuck 0:8f0d0ae0a077 1869 else
dudmuck 0:8f0d0ae0a077 1870 {
dudmuck 0:8f0d0ae0a077 1871 RxWindowDelay_us = LoRaMacParams.ReceiveDelay_us + RxWindowsParam.RxOffset;
dudmuck 0:8f0d0ae0a077 1872 }
dudmuck 0:8f0d0ae0a077 1873
dudmuck 0:8f0d0ae0a077 1874 // Schedule transmission of frame
dudmuck 0:8f0d0ae0a077 1875
dudmuck 0:8f0d0ae0a077 1876 // Try to send now
dudmuck 0:8f0d0ae0a077 1877 return SendFrameOnChannel( Channels[Channel] );
dudmuck 0:8f0d0ae0a077 1878 }
dudmuck 0:8f0d0ae0a077 1879
dudmuck 0:8f0d0ae0a077 1880 static void ResetMacParameters( void )
dudmuck 0:8f0d0ae0a077 1881 {
dudmuck 0:8f0d0ae0a077 1882 IsLoRaMacNetworkJoined = false;
dudmuck 0:8f0d0ae0a077 1883
dudmuck 0:8f0d0ae0a077 1884 // Counters
dudmuck 0:8f0d0ae0a077 1885 UpLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1886 DownLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1887
dudmuck 0:8f0d0ae0a077 1888 ChannelsNbRepCounter = 0;
dudmuck 0:8f0d0ae0a077 1889
dudmuck 0:8f0d0ae0a077 1890 MacCommandsBufferIndex = 0;
dudmuck 0:8f0d0ae0a077 1891 MacCommandsBufferToRepeatIndex = 0;
dudmuck 0:8f0d0ae0a077 1892
dudmuck 0:8f0d0ae0a077 1893 IsRxWindowsEnabled = true;
dudmuck 0:8f0d0ae0a077 1894
dudmuck 0:8f0d0ae0a077 1895 LoRaMacParams.ChannelsTxPower = LoRaMacParamsDefaults.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 1896 LoRaMacParams.ChannelsDatarate_fixed = LoRaMacParamsDefaults.ChannelsDatarate_fixed;
dudmuck 0:8f0d0ae0a077 1897
dudmuck 0:8f0d0ae0a077 1898 LoRaMacParams.Rx1DrOffset = LoRaMacParamsDefaults.Rx1DrOffset;
dudmuck 0:8f0d0ae0a077 1899
dudmuck 0:8f0d0ae0a077 1900 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 1901 SrvAckRequested = false;
dudmuck 0:8f0d0ae0a077 1902 MacCommandsInNextTx = false;
dudmuck 0:8f0d0ae0a077 1903
dudmuck 0:8f0d0ae0a077 1904 // Reset Multicast downlink counters
dudmuck 0:8f0d0ae0a077 1905 MulticastParams_t *cur = MulticastChannels;
dudmuck 0:8f0d0ae0a077 1906 while( cur != NULL )
dudmuck 0:8f0d0ae0a077 1907 {
dudmuck 0:8f0d0ae0a077 1908 cur->DownLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 1909 cur = cur->Next;
dudmuck 0:8f0d0ae0a077 1910 }
dudmuck 0:8f0d0ae0a077 1911
dudmuck 0:8f0d0ae0a077 1912 }
dudmuck 0:8f0d0ae0a077 1913
dudmuck 0:8f0d0ae0a077 1914 LoRaMacStatus_t PrepareFrame( LoRaMacHeader_t *macHdr, LoRaMacFrameCtrl_t *fCtrl, uint8_t fPort, void *fBuffer, uint16_t fBufferSize )
dudmuck 0:8f0d0ae0a077 1915 {
dudmuck 0:8f0d0ae0a077 1916 uint16_t i;
dudmuck 0:8f0d0ae0a077 1917 uint8_t pktHeaderLen = 0;
dudmuck 0:8f0d0ae0a077 1918 uint32_t mic = 0;
dudmuck 0:8f0d0ae0a077 1919 const void* payload = fBuffer;
dudmuck 0:8f0d0ae0a077 1920 uint8_t framePort = fPort;
dudmuck 0:8f0d0ae0a077 1921
dudmuck 0:8f0d0ae0a077 1922 LoRaMacBufferPktLen = 0;
dudmuck 0:8f0d0ae0a077 1923
dudmuck 0:8f0d0ae0a077 1924 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 1925
dudmuck 0:8f0d0ae0a077 1926 if( fBuffer == NULL )
dudmuck 0:8f0d0ae0a077 1927 {
dudmuck 0:8f0d0ae0a077 1928 fBufferSize = 0;
dudmuck 0:8f0d0ae0a077 1929 }
dudmuck 0:8f0d0ae0a077 1930
dudmuck 0:8f0d0ae0a077 1931 LoRaMacTxPayloadLen = fBufferSize;
dudmuck 0:8f0d0ae0a077 1932
dudmuck 0:8f0d0ae0a077 1933 LoRaMacBuffer[pktHeaderLen++] = macHdr->Value;
dudmuck 0:8f0d0ae0a077 1934
dudmuck 0:8f0d0ae0a077 1935 switch( macHdr->Bits.MType )
dudmuck 0:8f0d0ae0a077 1936 {
dudmuck 0:8f0d0ae0a077 1937 case FRAME_TYPE_JOIN_REQ:
dudmuck 0:8f0d0ae0a077 1938 LoRaMacBufferPktLen = pktHeaderLen;
dudmuck 0:8f0d0ae0a077 1939
dudmuck 0:8f0d0ae0a077 1940 memcpyr( LoRaMacBuffer + LoRaMacBufferPktLen, LoRaMacAppEui, 8 );
dudmuck 0:8f0d0ae0a077 1941 LoRaMacBufferPktLen += 8;
dudmuck 0:8f0d0ae0a077 1942 memcpyr( LoRaMacBuffer + LoRaMacBufferPktLen, LoRaMacDevEui, 8 );
dudmuck 0:8f0d0ae0a077 1943 LoRaMacBufferPktLen += 8;
dudmuck 0:8f0d0ae0a077 1944
dudmuck 0:8f0d0ae0a077 1945 LoRaMacDevNonce = Radio.Random( );
dudmuck 0:8f0d0ae0a077 1946
dudmuck 0:8f0d0ae0a077 1947 LoRaMacBuffer[LoRaMacBufferPktLen++] = LoRaMacDevNonce & 0xFF;
dudmuck 0:8f0d0ae0a077 1948 LoRaMacBuffer[LoRaMacBufferPktLen++] = ( LoRaMacDevNonce >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1949
dudmuck 0:8f0d0ae0a077 1950 LoRaMacJoinComputeMic( LoRaMacBuffer, LoRaMacBufferPktLen & 0xFF, LoRaMacAppKey, &mic );
dudmuck 0:8f0d0ae0a077 1951
dudmuck 0:8f0d0ae0a077 1952 LoRaMacBuffer[LoRaMacBufferPktLen++] = mic & 0xFF;
dudmuck 0:8f0d0ae0a077 1953 LoRaMacBuffer[LoRaMacBufferPktLen++] = ( mic >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1954 LoRaMacBuffer[LoRaMacBufferPktLen++] = ( mic >> 16 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1955 LoRaMacBuffer[LoRaMacBufferPktLen++] = ( mic >> 24 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1956
dudmuck 0:8f0d0ae0a077 1957 break;
dudmuck 0:8f0d0ae0a077 1958 case FRAME_TYPE_DATA_CONFIRMED_UP:
dudmuck 0:8f0d0ae0a077 1959 NodeAckRequested = true;
dudmuck 0:8f0d0ae0a077 1960 //Intentional fallthrough
dudmuck 0:8f0d0ae0a077 1961 case FRAME_TYPE_DATA_UNCONFIRMED_UP:
dudmuck 0:8f0d0ae0a077 1962 if( IsLoRaMacNetworkJoined == false )
dudmuck 0:8f0d0ae0a077 1963 {
dudmuck 0:8f0d0ae0a077 1964 return LORAMAC_STATUS_NO_NETWORK_JOINED; // No network has been joined yet
dudmuck 0:8f0d0ae0a077 1965 }
dudmuck 0:8f0d0ae0a077 1966
dudmuck 0:8f0d0ae0a077 1967 fCtrl->Bits.AdrAckReq = 0;
dudmuck 0:8f0d0ae0a077 1968
dudmuck 0:8f0d0ae0a077 1969 if( SrvAckRequested == true )
dudmuck 0:8f0d0ae0a077 1970 {
dudmuck 0:8f0d0ae0a077 1971 SrvAckRequested = false;
dudmuck 0:8f0d0ae0a077 1972 fCtrl->Bits.Ack = 1;
dudmuck 0:8f0d0ae0a077 1973 }
dudmuck 0:8f0d0ae0a077 1974
dudmuck 0:8f0d0ae0a077 1975 LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1976 LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1977 LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr >> 16 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1978 LoRaMacBuffer[pktHeaderLen++] = ( LoRaMacDevAddr >> 24 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1979
dudmuck 0:8f0d0ae0a077 1980 LoRaMacBuffer[pktHeaderLen++] = fCtrl->Value;
dudmuck 0:8f0d0ae0a077 1981
dudmuck 0:8f0d0ae0a077 1982 LoRaMacBuffer[pktHeaderLen++] = UpLinkCounter & 0xFF;
dudmuck 0:8f0d0ae0a077 1983 LoRaMacBuffer[pktHeaderLen++] = ( UpLinkCounter >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 1984
dudmuck 0:8f0d0ae0a077 1985 // Copy the MAC commands which must be re-send into the MAC command buffer
dudmuck 0:8f0d0ae0a077 1986 memcpy1( &MacCommandsBuffer[MacCommandsBufferIndex], MacCommandsBufferToRepeat, MacCommandsBufferToRepeatIndex );
dudmuck 0:8f0d0ae0a077 1987 MacCommandsBufferIndex += MacCommandsBufferToRepeatIndex;
dudmuck 0:8f0d0ae0a077 1988
dudmuck 0:8f0d0ae0a077 1989 if( ( payload != NULL ) && ( LoRaMacTxPayloadLen > 0 ) )
dudmuck 0:8f0d0ae0a077 1990 {
dudmuck 0:8f0d0ae0a077 1991 if( ( MacCommandsBufferIndex <= LORA_MAC_COMMAND_MAX_LENGTH ) && ( MacCommandsInNextTx == true ) )
dudmuck 0:8f0d0ae0a077 1992 {
dudmuck 0:8f0d0ae0a077 1993 fCtrl->Bits.FOptsLen += MacCommandsBufferIndex;
dudmuck 0:8f0d0ae0a077 1994
dudmuck 0:8f0d0ae0a077 1995 // Update FCtrl field with new value of OptionsLength
dudmuck 0:8f0d0ae0a077 1996 LoRaMacBuffer[0x05] = fCtrl->Value;
dudmuck 0:8f0d0ae0a077 1997 for( i = 0; i < MacCommandsBufferIndex; i++ )
dudmuck 0:8f0d0ae0a077 1998 {
dudmuck 0:8f0d0ae0a077 1999 LoRaMacBuffer[pktHeaderLen++] = MacCommandsBuffer[i];
dudmuck 0:8f0d0ae0a077 2000 }
dudmuck 0:8f0d0ae0a077 2001 }
dudmuck 0:8f0d0ae0a077 2002 }
dudmuck 0:8f0d0ae0a077 2003 else
dudmuck 0:8f0d0ae0a077 2004 {
dudmuck 0:8f0d0ae0a077 2005 if( ( MacCommandsBufferIndex > 0 ) && ( MacCommandsInNextTx ) )
dudmuck 0:8f0d0ae0a077 2006 {
dudmuck 0:8f0d0ae0a077 2007 LoRaMacTxPayloadLen = MacCommandsBufferIndex;
dudmuck 0:8f0d0ae0a077 2008 payload = MacCommandsBuffer;
dudmuck 0:8f0d0ae0a077 2009 framePort = 0;
dudmuck 0:8f0d0ae0a077 2010 }
dudmuck 0:8f0d0ae0a077 2011 }
dudmuck 0:8f0d0ae0a077 2012 MacCommandsInNextTx = false;
dudmuck 0:8f0d0ae0a077 2013 // Store MAC commands which must be re-send in case the device does not receive a downlink anymore
dudmuck 0:8f0d0ae0a077 2014 MacCommandsBufferToRepeatIndex = ParseMacCommandsToRepeat( MacCommandsBuffer, MacCommandsBufferIndex, MacCommandsBufferToRepeat );
dudmuck 0:8f0d0ae0a077 2015 if( MacCommandsBufferToRepeatIndex > 0 )
dudmuck 0:8f0d0ae0a077 2016 {
dudmuck 0:8f0d0ae0a077 2017 MacCommandsInNextTx = true;
dudmuck 0:8f0d0ae0a077 2018 }
dudmuck 0:8f0d0ae0a077 2019
dudmuck 0:8f0d0ae0a077 2020 if( ( payload != NULL ) && ( LoRaMacTxPayloadLen > 0 ) )
dudmuck 0:8f0d0ae0a077 2021 {
dudmuck 0:8f0d0ae0a077 2022 LoRaMacBuffer[pktHeaderLen++] = framePort;
dudmuck 0:8f0d0ae0a077 2023
dudmuck 0:8f0d0ae0a077 2024 if( framePort == 0 )
dudmuck 0:8f0d0ae0a077 2025 {
dudmuck 0:8f0d0ae0a077 2026 LoRaMacPayloadEncrypt( (uint8_t* ) payload, LoRaMacTxPayloadLen, LoRaMacNwkSKey, LoRaMacDevAddr, UP_LINK, UpLinkCounter, &LoRaMacBuffer[pktHeaderLen] );
dudmuck 0:8f0d0ae0a077 2027 }
dudmuck 0:8f0d0ae0a077 2028 else
dudmuck 0:8f0d0ae0a077 2029 {
dudmuck 0:8f0d0ae0a077 2030 LoRaMacPayloadEncrypt( (uint8_t* ) payload, LoRaMacTxPayloadLen, LoRaMacAppSKey, LoRaMacDevAddr, UP_LINK, UpLinkCounter, &LoRaMacBuffer[pktHeaderLen] );
dudmuck 0:8f0d0ae0a077 2031 }
dudmuck 0:8f0d0ae0a077 2032 }
dudmuck 0:8f0d0ae0a077 2033 LoRaMacBufferPktLen = pktHeaderLen + LoRaMacTxPayloadLen;
dudmuck 0:8f0d0ae0a077 2034
dudmuck 0:8f0d0ae0a077 2035 LoRaMacComputeMic( LoRaMacBuffer, LoRaMacBufferPktLen, LoRaMacNwkSKey, LoRaMacDevAddr, UP_LINK, UpLinkCounter, &mic );
dudmuck 0:8f0d0ae0a077 2036
dudmuck 0:8f0d0ae0a077 2037 LoRaMacBuffer[LoRaMacBufferPktLen + 0] = mic & 0xFF;
dudmuck 0:8f0d0ae0a077 2038 LoRaMacBuffer[LoRaMacBufferPktLen + 1] = ( mic >> 8 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 2039 LoRaMacBuffer[LoRaMacBufferPktLen + 2] = ( mic >> 16 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 2040 LoRaMacBuffer[LoRaMacBufferPktLen + 3] = ( mic >> 24 ) & 0xFF;
dudmuck 0:8f0d0ae0a077 2041
dudmuck 0:8f0d0ae0a077 2042 LoRaMacBufferPktLen += LORAMAC_MFR_LEN;
dudmuck 0:8f0d0ae0a077 2043
dudmuck 0:8f0d0ae0a077 2044 break;
dudmuck 0:8f0d0ae0a077 2045 case FRAME_TYPE_PROPRIETARY:
dudmuck 0:8f0d0ae0a077 2046 if( ( fBuffer != NULL ) && ( LoRaMacTxPayloadLen > 0 ) )
dudmuck 0:8f0d0ae0a077 2047 {
dudmuck 0:8f0d0ae0a077 2048 memcpy1( LoRaMacBuffer + pktHeaderLen, ( uint8_t* ) fBuffer, LoRaMacTxPayloadLen );
dudmuck 0:8f0d0ae0a077 2049 LoRaMacBufferPktLen = pktHeaderLen + LoRaMacTxPayloadLen;
dudmuck 0:8f0d0ae0a077 2050 }
dudmuck 0:8f0d0ae0a077 2051 break;
dudmuck 0:8f0d0ae0a077 2052 default:
dudmuck 0:8f0d0ae0a077 2053 return LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2054 }
dudmuck 0:8f0d0ae0a077 2055
dudmuck 0:8f0d0ae0a077 2056 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2057 }
dudmuck 0:8f0d0ae0a077 2058
dudmuck 0:8f0d0ae0a077 2059
dudmuck 5:c108560af4c3 2060 //TxPowers[LoRaMacParams.ChannelsTxPower]
dudmuck 0:8f0d0ae0a077 2061 LoRaMacStatus_t SendFrameOnChannel( ChannelParams_t channel )
dudmuck 0:8f0d0ae0a077 2062 {
dudmuck 0:8f0d0ae0a077 2063 int8_t datarate = Datarates[LoRaMacParams.ChannelsDatarate_fixed];
dudmuck 0:8f0d0ae0a077 2064 int8_t txPowerIndex = 0;
dudmuck 0:8f0d0ae0a077 2065 int8_t txPower = 0;
dudmuck 0:8f0d0ae0a077 2066
dudmuck 0:8f0d0ae0a077 2067 if (LoRaMacState & LORAMAC_TX_SCHED) {
dudmuck 0:8f0d0ae0a077 2068 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2069 }
dudmuck 0:8f0d0ae0a077 2070
dudmuck 0:8f0d0ae0a077 2071 txPowerIndex = LoRaMacParams.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2072 txPower = TxPowers[txPowerIndex];
dudmuck 0:8f0d0ae0a077 2073
dudmuck 2:f2d9aa163652 2074 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_SEND;
dudmuck 2:f2d9aa163652 2075 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_SEND;
dudmuck 0:8f0d0ae0a077 2076 McpsConfirm.TxPower = txPowerIndex;
dudmuck 0:8f0d0ae0a077 2077 McpsConfirm.UpLinkFrequency = channel.Frequency;
dudmuck 0:8f0d0ae0a077 2078
dudmuck 0:8f0d0ae0a077 2079 Radio.SetChannel( channel.Frequency );
dudmuck 0:8f0d0ae0a077 2080
dudmuck 0:8f0d0ae0a077 2081 if( LoRaMacParams.ChannelsDatarate_fixed >= DR_8 )
dudmuck 0:8f0d0ae0a077 2082 { // High speed LoRa channel BW500 kHz
dudmuck 5:c108560af4c3 2083 //Radio.SetTxConfig( MODEM_LORA, txPower, 0, 2, datarate, 1, 8, false, true, 0, 0, false, 3e3 );
dudmuck 0:8f0d0ae0a077 2084 TxTimeOnAir = Radio.TimeOnAir( MODEM_LORA, LoRaMacBufferPktLen );
dudmuck 0:8f0d0ae0a077 2085 } else
dudmuck 0:8f0d0ae0a077 2086 return LORAMAC_STATUS_DATARATE_INVALID;
dudmuck 0:8f0d0ae0a077 2087
dudmuck 0:8f0d0ae0a077 2088 // Store the time on air
dudmuck 0:8f0d0ae0a077 2089 McpsConfirm.TxTimeOnAir = TxTimeOnAir;
dudmuck 0:8f0d0ae0a077 2090 MlmeConfirm.TxTimeOnAir = TxTimeOnAir;
dudmuck 0:8f0d0ae0a077 2091
dudmuck 0:8f0d0ae0a077 2092
dudmuck 0:8f0d0ae0a077 2093 if( IsLoRaMacNetworkJoined == false )
dudmuck 0:8f0d0ae0a077 2094 {
dudmuck 0:8f0d0ae0a077 2095 JoinRequestTrials++;
dudmuck 7:e238827f0e47 2096 isr_printf("join %luhz try%u DR%u\r\n", channel.Frequency, JoinRequestTrials, LoRaMacParams.ChannelsDatarate_fixed);
dudmuck 0:8f0d0ae0a077 2097 }
dudmuck 0:8f0d0ae0a077 2098
dudmuck 0:8f0d0ae0a077 2099 /* anything not join request is sent at permitted time slot */
dudmuck 0:8f0d0ae0a077 2100 LoRaMacHeader_t* macHdr = (LoRaMacHeader_t*)&LoRaMacBuffer[0];
dudmuck 0:8f0d0ae0a077 2101 if (macHdr->Bits.MType == FRAME_TYPE_JOIN_REQ) {
dudmuck 0:8f0d0ae0a077 2102 // Send now
dudmuck 5:c108560af4c3 2103 Radio.SetTxConfig( MODEM_LORA, txPower, 0, 2, datarate, 1, 8, false, true, 0, 0, false, 3e3 );
dudmuck 0:8f0d0ae0a077 2104 Radio.Send( LoRaMacBuffer, LoRaMacBufferPktLen );
dudmuck 0:8f0d0ae0a077 2105
dudmuck 0:8f0d0ae0a077 2106 LoRaMacState |= LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 2107
dudmuck 0:8f0d0ae0a077 2108 // Starts the MAC layer status check timer
dudmuck 0:8f0d0ae0a077 2109 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 0:8f0d0ae0a077 2110 } else if (BeaconCtx.have_beacon) {
dudmuck 0:8f0d0ae0a077 2111 /* find now ping slot */
dudmuck 0:8f0d0ae0a077 2112 unsigned int target_us, now_us = lp_timer.read_us();
dudmuck 6:240fd4938d51 2113 int us_to_guard, us_since_beacon_start = now_us - BeaconCtx.LastBeaconStart_us;
dudmuck 0:8f0d0ae0a077 2114 int use_slot = BeaconCtx.tx_slot_offset;
dudmuck 0:8f0d0ae0a077 2115 int now_slot = (us_since_beacon_start - BEACON_RESERVED_us) / 30000;
dudmuck 8:ab2f9a8d2eaa 2116 int use_slot_us, txing_in_us;
dudmuck 0:8f0d0ae0a077 2117
dudmuck 0:8f0d0ae0a077 2118 while (use_slot < now_slot)
dudmuck 0:8f0d0ae0a077 2119 use_slot += BeaconCtx.periodicity_slots;
dudmuck 0:8f0d0ae0a077 2120
dudmuck 0:8f0d0ae0a077 2121 use_slot_us = (use_slot * 30000);
dudmuck 6:240fd4938d51 2122 us_to_guard = BeaconCtx.next_beacon_expected_us - use_slot_us;
dudmuck 8:ab2f9a8d2eaa 2123 target_us = (use_slot * 30000) + BEACON_RESERVED_us;
dudmuck 8:ab2f9a8d2eaa 2124 txing_in_us = target_us - us_since_beacon_start;
dudmuck 0:8f0d0ae0a077 2125 #ifdef TX_DEBUG
dudmuck 8:ab2f9a8d2eaa 2126 isr_printf("now_slot:%d, to-guard:%d use_slot:%u (txing_in %d) ", now_slot, us_to_guard, use_slot, txing_in_us);
dudmuck 0:8f0d0ae0a077 2127 #endif
dudmuck 8:ab2f9a8d2eaa 2128 if ((us_to_guard - txing_in_us) > BEACON_GUARD_us) {
dudmuck 8:ab2f9a8d2eaa 2129 us_at_sched = us_to_guard - txing_in_us;
dudmuck 8:ab2f9a8d2eaa 2130 tx_timeout.attach_us(&send_callback, txing_in_us);
dudmuck 0:8f0d0ae0a077 2131 #ifdef TX_DEBUG
dudmuck 1:53c30224eda8 2132 isr_printf(" : tx in %uus\r\n", target_us - us_since_beacon_start);
dudmuck 0:8f0d0ae0a077 2133 #endif
dudmuck 0:8f0d0ae0a077 2134 } else {
dudmuck 6:240fd4938d51 2135 #ifdef TX_DEBUG
dudmuck 5:c108560af4c3 2136 isr_printf("sf-busy\r\n");
dudmuck 6:240fd4938d51 2137 #endif
dudmuck 0:8f0d0ae0a077 2138 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2139 }
dudmuck 0:8f0d0ae0a077 2140
dudmuck 0:8f0d0ae0a077 2141 LoRaMacState |= LORAMAC_TX_SCHED;
dudmuck 0:8f0d0ae0a077 2142 } else {
dudmuck 1:53c30224eda8 2143 isr_printf("dropped tx\r\n");
dudmuck 0:8f0d0ae0a077 2144 return LORAMAC_STATUS_SERVICE_UNKNOWN; // TODO use correct failure
dudmuck 0:8f0d0ae0a077 2145 }
dudmuck 0:8f0d0ae0a077 2146
dudmuck 0:8f0d0ae0a077 2147 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2148 }
dudmuck 0:8f0d0ae0a077 2149
dudmuck 0:8f0d0ae0a077 2150 LoRaMacStatus_t SetTxContinuousWave( uint16_t timeout )
dudmuck 0:8f0d0ae0a077 2151 {
dudmuck 0:8f0d0ae0a077 2152 int8_t txPowerIndex = 0;
dudmuck 0:8f0d0ae0a077 2153 int8_t txPower = 0;
dudmuck 0:8f0d0ae0a077 2154
dudmuck 0:8f0d0ae0a077 2155 txPowerIndex = LoRaMacParams.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2156 txPower = TxPowers[txPowerIndex];
dudmuck 0:8f0d0ae0a077 2157
dudmuck 0:8f0d0ae0a077 2158 // Starts the MAC layer status check timer
dudmuck 0:8f0d0ae0a077 2159 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 0:8f0d0ae0a077 2160
dudmuck 0:8f0d0ae0a077 2161 Radio.SetTxContinuousWave( Channels[Channel].Frequency, txPower, timeout );
dudmuck 0:8f0d0ae0a077 2162
dudmuck 0:8f0d0ae0a077 2163 LoRaMacState |= LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 2164
dudmuck 0:8f0d0ae0a077 2165 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2166 }
dudmuck 0:8f0d0ae0a077 2167
dudmuck 0:8f0d0ae0a077 2168 LoRaMacStatus_t SetTxContinuousWave1( uint16_t timeout, uint32_t frequency, uint8_t power )
dudmuck 0:8f0d0ae0a077 2169 {
dudmuck 0:8f0d0ae0a077 2170 Radio.SetTxContinuousWave( frequency, power, timeout );
dudmuck 0:8f0d0ae0a077 2171
dudmuck 0:8f0d0ae0a077 2172 // Starts the MAC layer status check timer
dudmuck 0:8f0d0ae0a077 2173 MacStateCheckTimer.attach_us(&OnMacStateCheckTimerEvent, MAC_STATE_CHECK_TIMEOUT_us);
dudmuck 0:8f0d0ae0a077 2174
dudmuck 0:8f0d0ae0a077 2175 LoRaMacState |= LORAMAC_TX_RUNNING;
dudmuck 0:8f0d0ae0a077 2176
dudmuck 0:8f0d0ae0a077 2177 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2178 }
dudmuck 0:8f0d0ae0a077 2179
dudmuck 0:8f0d0ae0a077 2180 void seconds()
dudmuck 0:8f0d0ae0a077 2181 {
dudmuck 1:53c30224eda8 2182 isr_printf("second\r\n");
dudmuck 0:8f0d0ae0a077 2183 }
dudmuck 0:8f0d0ae0a077 2184
dudmuck 0:8f0d0ae0a077 2185 LoRaMacStatus_t LoRaMacInitialization( LoRaMacPrimitives_t *primitives, LoRaMacCallback_t *callbacks )
dudmuck 0:8f0d0ae0a077 2186 {
dudmuck 0:8f0d0ae0a077 2187 if( primitives == NULL )
dudmuck 0:8f0d0ae0a077 2188 {
dudmuck 0:8f0d0ae0a077 2189 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2190 }
dudmuck 0:8f0d0ae0a077 2191
dudmuck 0:8f0d0ae0a077 2192 if( ( primitives->MacMcpsConfirm == NULL ) ||
dudmuck 0:8f0d0ae0a077 2193 ( primitives->MacMcpsIndication == NULL ) ||
dudmuck 0:8f0d0ae0a077 2194 ( primitives->MacMlmeConfirm == NULL ) )
dudmuck 0:8f0d0ae0a077 2195 {
dudmuck 0:8f0d0ae0a077 2196 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2197 }
dudmuck 0:8f0d0ae0a077 2198
dudmuck 0:8f0d0ae0a077 2199 LoRaMacPrimitives = primitives;
dudmuck 0:8f0d0ae0a077 2200 LoRaMacCallbacks = callbacks;
dudmuck 0:8f0d0ae0a077 2201
dudmuck 0:8f0d0ae0a077 2202 LoRaMacFlags.Value = 0;
dudmuck 0:8f0d0ae0a077 2203
dudmuck 0:8f0d0ae0a077 2204 LoRaMacDeviceClass = CLASS_A;
dudmuck 0:8f0d0ae0a077 2205 LoRaMacState = LORAMAC_IDLE;
dudmuck 0:8f0d0ae0a077 2206
dudmuck 0:8f0d0ae0a077 2207 JoinRequestTrials = 0;
dudmuck 0:8f0d0ae0a077 2208 MaxJoinRequestTrials = 255;
dudmuck 0:8f0d0ae0a077 2209
dudmuck 0:8f0d0ae0a077 2210
dudmuck 0:8f0d0ae0a077 2211 // Reset to defaults
dudmuck 0:8f0d0ae0a077 2212 LoRaMacParamsDefaults.ChannelsTxPower = LORAMAC_DEFAULT_TX_POWER;
dudmuck 0:8f0d0ae0a077 2213 LoRaMacParamsDefaults.ChannelsDatarate_fixed = LORAMAC_DEFAULT_DATARATE;
dudmuck 0:8f0d0ae0a077 2214
dudmuck 0:8f0d0ae0a077 2215 LoRaMacParamsDefaults.SystemMaxRxError = 10;
dudmuck 0:8f0d0ae0a077 2216 LoRaMacParamsDefaults.MinRxSymbols = 6; // TODO XXX increase
dudmuck 0:8f0d0ae0a077 2217 LoRaMacParamsDefaults.MaxRxWindow = MAX_RX_WINDOW;
dudmuck 0:8f0d0ae0a077 2218
dudmuck 0:8f0d0ae0a077 2219 LoRaMacParamsDefaults.ReceiveDelay_us = RECEIVE_DELAY_us;
dudmuck 0:8f0d0ae0a077 2220 LoRaMacParamsDefaults.JoinAcceptDelay_us = JOIN_ACCEPT_DELAY_us;
dudmuck 0:8f0d0ae0a077 2221
dudmuck 0:8f0d0ae0a077 2222 LoRaMacParamsDefaults.ChannelsNbRep = 1;
dudmuck 0:8f0d0ae0a077 2223 LoRaMacParamsDefaults.Rx1DrOffset = 0;
dudmuck 0:8f0d0ae0a077 2224
dudmuck 0:8f0d0ae0a077 2225
dudmuck 0:8f0d0ae0a077 2226 #if defined(USE_BAND_915_SINGLE)
dudmuck 0:8f0d0ae0a077 2227 // 500 kHz channels
dudmuck 0:8f0d0ae0a077 2228 for( uint8_t i = 0; i < LORA_MAX_NB_CHANNELS; i++ )
dudmuck 0:8f0d0ae0a077 2229 {
dudmuck 0:8f0d0ae0a077 2230 Channels[i].Frequency = LORAMAC_FIRST_CHANNEL + (i * LORAMAC_STEPWIDTH_CHANNEL);
dudmuck 0:8f0d0ae0a077 2231 Channels[i].DrRange.Value = ( DR_13 << 4 ) | DR_8;
dudmuck 0:8f0d0ae0a077 2232 Channels[i].Band = 0;
dudmuck 0:8f0d0ae0a077 2233 }
dudmuck 0:8f0d0ae0a077 2234 #endif
dudmuck 0:8f0d0ae0a077 2235
dudmuck 0:8f0d0ae0a077 2236 // Init parameters which are not set in function ResetMacParameters
dudmuck 0:8f0d0ae0a077 2237 LoRaMacParams.SystemMaxRxError = LoRaMacParamsDefaults.SystemMaxRxError;
dudmuck 0:8f0d0ae0a077 2238 LoRaMacParams.MinRxSymbols = LoRaMacParamsDefaults.MinRxSymbols;
dudmuck 0:8f0d0ae0a077 2239 LoRaMacParams.MaxRxWindow = LoRaMacParamsDefaults.MaxRxWindow;
dudmuck 0:8f0d0ae0a077 2240 LoRaMacParams.ReceiveDelay_us = LoRaMacParamsDefaults.ReceiveDelay_us;
dudmuck 0:8f0d0ae0a077 2241 LoRaMacParams.JoinAcceptDelay_us = LoRaMacParamsDefaults.JoinAcceptDelay_us;
dudmuck 0:8f0d0ae0a077 2242 LoRaMacParams.ChannelsNbRep = LoRaMacParamsDefaults.ChannelsNbRep;
dudmuck 0:8f0d0ae0a077 2243
dudmuck 0:8f0d0ae0a077 2244 ResetMacParameters( );
dudmuck 0:8f0d0ae0a077 2245
dudmuck 0:8f0d0ae0a077 2246 // Initialize Radio driver
dudmuck 0:8f0d0ae0a077 2247 RadioEvents.TxDone = OnRadioTxDone;
dudmuck 0:8f0d0ae0a077 2248 RadioEvents.RxDone = OnRadioRxDone;
dudmuck 0:8f0d0ae0a077 2249 RadioEvents.RxError = OnRadioRxError;
dudmuck 0:8f0d0ae0a077 2250 RadioEvents.TxTimeout = OnRadioTxTimeout;
dudmuck 0:8f0d0ae0a077 2251 RadioEvents.RxTimeout = OnRadioRxTimeout;
dudmuck 0:8f0d0ae0a077 2252 Radio.Init( &RadioEvents );
dudmuck 0:8f0d0ae0a077 2253
dudmuck 0:8f0d0ae0a077 2254 // Random seed initialization
dudmuck 0:8f0d0ae0a077 2255 srand1( Radio.Random( ) );
dudmuck 0:8f0d0ae0a077 2256
dudmuck 0:8f0d0ae0a077 2257 PublicNetwork = true;
dudmuck 0:8f0d0ae0a077 2258 Radio.SetPublicNetwork( PublicNetwork );
dudmuck 0:8f0d0ae0a077 2259 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 2260
dudmuck 0:8f0d0ae0a077 2261 lp_timer.start();
dudmuck 0:8f0d0ae0a077 2262
dudmuck 0:8f0d0ae0a077 2263 RxWindowsParam = ComputeRxWindowParameters(LORAMAC_DEFAULT_DATARATE, LoRaMacParams.SystemMaxRxError);
dudmuck 0:8f0d0ae0a077 2264
dudmuck 0:8f0d0ae0a077 2265 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2266 }
dudmuck 0:8f0d0ae0a077 2267
dudmuck 0:8f0d0ae0a077 2268 LoRaMacStatus_t LoRaMacQueryTxPossible( uint8_t size, LoRaMacTxInfo_t* txInfo )
dudmuck 0:8f0d0ae0a077 2269 {
dudmuck 0:8f0d0ae0a077 2270 uint8_t fOptLen = MacCommandsBufferIndex + MacCommandsBufferToRepeatIndex;
dudmuck 0:8f0d0ae0a077 2271
dudmuck 0:8f0d0ae0a077 2272 if( txInfo == NULL )
dudmuck 0:8f0d0ae0a077 2273 {
dudmuck 0:8f0d0ae0a077 2274 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2275 }
dudmuck 0:8f0d0ae0a077 2276
dudmuck 0:8f0d0ae0a077 2277 txInfo->CurrentPayloadSize = 255;
dudmuck 0:8f0d0ae0a077 2278
dudmuck 0:8f0d0ae0a077 2279 if( txInfo->CurrentPayloadSize >= fOptLen )
dudmuck 0:8f0d0ae0a077 2280 {
dudmuck 0:8f0d0ae0a077 2281 txInfo->MaxPossiblePayload = txInfo->CurrentPayloadSize - fOptLen;
dudmuck 0:8f0d0ae0a077 2282 }
dudmuck 0:8f0d0ae0a077 2283 else
dudmuck 0:8f0d0ae0a077 2284 {
dudmuck 0:8f0d0ae0a077 2285 return LORAMAC_STATUS_MAC_CMD_LENGTH_ERROR;
dudmuck 0:8f0d0ae0a077 2286 }
dudmuck 0:8f0d0ae0a077 2287
dudmuck 0:8f0d0ae0a077 2288 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2289 }
dudmuck 0:8f0d0ae0a077 2290
dudmuck 0:8f0d0ae0a077 2291 LoRaMacStatus_t LoRaMacMibGetRequestConfirm( MibRequestConfirm_t *mibGet )
dudmuck 0:8f0d0ae0a077 2292 {
dudmuck 0:8f0d0ae0a077 2293 LoRaMacStatus_t status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2294
dudmuck 0:8f0d0ae0a077 2295 if( mibGet == NULL )
dudmuck 0:8f0d0ae0a077 2296 {
dudmuck 0:8f0d0ae0a077 2297 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2298 }
dudmuck 0:8f0d0ae0a077 2299
dudmuck 0:8f0d0ae0a077 2300 switch( mibGet->Type )
dudmuck 0:8f0d0ae0a077 2301 {
dudmuck 0:8f0d0ae0a077 2302 case MIB_DEVICE_CLASS:
dudmuck 0:8f0d0ae0a077 2303 {
dudmuck 0:8f0d0ae0a077 2304 mibGet->Param.Class = LoRaMacDeviceClass;
dudmuck 0:8f0d0ae0a077 2305 break;
dudmuck 0:8f0d0ae0a077 2306 }
dudmuck 0:8f0d0ae0a077 2307 case MIB_NETWORK_JOINED:
dudmuck 0:8f0d0ae0a077 2308 {
dudmuck 0:8f0d0ae0a077 2309 mibGet->Param.IsNetworkJoined = IsLoRaMacNetworkJoined;
dudmuck 0:8f0d0ae0a077 2310 break;
dudmuck 0:8f0d0ae0a077 2311 }
dudmuck 0:8f0d0ae0a077 2312 case MIB_NET_ID:
dudmuck 0:8f0d0ae0a077 2313 {
dudmuck 0:8f0d0ae0a077 2314 mibGet->Param.NetID = LoRaMacNetID;
dudmuck 0:8f0d0ae0a077 2315 break;
dudmuck 0:8f0d0ae0a077 2316 }
dudmuck 0:8f0d0ae0a077 2317 case MIB_DEV_ADDR:
dudmuck 0:8f0d0ae0a077 2318 {
dudmuck 0:8f0d0ae0a077 2319 mibGet->Param.DevAddr = LoRaMacDevAddr;
dudmuck 0:8f0d0ae0a077 2320 break;
dudmuck 0:8f0d0ae0a077 2321 }
dudmuck 0:8f0d0ae0a077 2322 case MIB_NWK_SKEY:
dudmuck 0:8f0d0ae0a077 2323 {
dudmuck 0:8f0d0ae0a077 2324 mibGet->Param.NwkSKey = LoRaMacNwkSKey;
dudmuck 0:8f0d0ae0a077 2325 break;
dudmuck 0:8f0d0ae0a077 2326 }
dudmuck 0:8f0d0ae0a077 2327 case MIB_APP_SKEY:
dudmuck 0:8f0d0ae0a077 2328 {
dudmuck 0:8f0d0ae0a077 2329 mibGet->Param.AppSKey = LoRaMacAppSKey;
dudmuck 0:8f0d0ae0a077 2330 break;
dudmuck 0:8f0d0ae0a077 2331 }
dudmuck 0:8f0d0ae0a077 2332 case MIB_PUBLIC_NETWORK:
dudmuck 0:8f0d0ae0a077 2333 {
dudmuck 0:8f0d0ae0a077 2334 mibGet->Param.EnablePublicNetwork = PublicNetwork;
dudmuck 0:8f0d0ae0a077 2335 break;
dudmuck 0:8f0d0ae0a077 2336 }
dudmuck 0:8f0d0ae0a077 2337 case MIB_CHANNELS_NB_REP:
dudmuck 0:8f0d0ae0a077 2338 {
dudmuck 0:8f0d0ae0a077 2339 mibGet->Param.ChannelNbRep = LoRaMacParams.ChannelsNbRep;
dudmuck 0:8f0d0ae0a077 2340 break;
dudmuck 0:8f0d0ae0a077 2341 }
dudmuck 0:8f0d0ae0a077 2342 case MIB_MAX_RX_WINDOW_DURATION:
dudmuck 0:8f0d0ae0a077 2343 {
dudmuck 0:8f0d0ae0a077 2344 mibGet->Param.MaxRxWindow = LoRaMacParams.MaxRxWindow;
dudmuck 0:8f0d0ae0a077 2345 break;
dudmuck 0:8f0d0ae0a077 2346 }
dudmuck 0:8f0d0ae0a077 2347 case MIB_CHANNELS_DEFAULT_TX_POWER:
dudmuck 0:8f0d0ae0a077 2348 {
dudmuck 0:8f0d0ae0a077 2349 mibGet->Param.ChannelsDefaultTxPower = LoRaMacParamsDefaults.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2350 break;
dudmuck 0:8f0d0ae0a077 2351 }
dudmuck 0:8f0d0ae0a077 2352 case MIB_CHANNELS_TX_POWER:
dudmuck 0:8f0d0ae0a077 2353 {
dudmuck 0:8f0d0ae0a077 2354 mibGet->Param.ChannelsTxPower = LoRaMacParams.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2355 break;
dudmuck 0:8f0d0ae0a077 2356 }
dudmuck 0:8f0d0ae0a077 2357 case MIB_UPLINK_COUNTER:
dudmuck 0:8f0d0ae0a077 2358 {
dudmuck 0:8f0d0ae0a077 2359 mibGet->Param.UpLinkCounter = UpLinkCounter;
dudmuck 0:8f0d0ae0a077 2360 break;
dudmuck 0:8f0d0ae0a077 2361 }
dudmuck 0:8f0d0ae0a077 2362 case MIB_DOWNLINK_COUNTER:
dudmuck 0:8f0d0ae0a077 2363 {
dudmuck 0:8f0d0ae0a077 2364 mibGet->Param.DownLinkCounter = DownLinkCounter;
dudmuck 0:8f0d0ae0a077 2365 break;
dudmuck 0:8f0d0ae0a077 2366 }
dudmuck 0:8f0d0ae0a077 2367 case MIB_MULTICAST_CHANNEL:
dudmuck 0:8f0d0ae0a077 2368 {
dudmuck 0:8f0d0ae0a077 2369 mibGet->Param.MulticastList = MulticastChannels;
dudmuck 0:8f0d0ae0a077 2370 break;
dudmuck 0:8f0d0ae0a077 2371 }
dudmuck 0:8f0d0ae0a077 2372 case MIB_SYSTEM_MAX_RX_ERROR:
dudmuck 0:8f0d0ae0a077 2373 {
dudmuck 0:8f0d0ae0a077 2374 mibGet->Param.SystemMaxRxError = LoRaMacParams.SystemMaxRxError;
dudmuck 0:8f0d0ae0a077 2375 break;
dudmuck 0:8f0d0ae0a077 2376 }
dudmuck 0:8f0d0ae0a077 2377 case MIB_MIN_RX_SYMBOLS:
dudmuck 0:8f0d0ae0a077 2378 {
dudmuck 0:8f0d0ae0a077 2379 mibGet->Param.MinRxSymbols = LoRaMacParams.MinRxSymbols;
dudmuck 0:8f0d0ae0a077 2380 break;
dudmuck 0:8f0d0ae0a077 2381 }
dudmuck 0:8f0d0ae0a077 2382 default:
dudmuck 0:8f0d0ae0a077 2383 status = LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2384 break;
dudmuck 0:8f0d0ae0a077 2385 }
dudmuck 0:8f0d0ae0a077 2386
dudmuck 0:8f0d0ae0a077 2387 return status;
dudmuck 0:8f0d0ae0a077 2388 }
dudmuck 0:8f0d0ae0a077 2389
dudmuck 0:8f0d0ae0a077 2390 LoRaMacStatus_t LoRaMacMibSetRequestConfirm( MibRequestConfirm_t *mibSet )
dudmuck 0:8f0d0ae0a077 2391 {
dudmuck 0:8f0d0ae0a077 2392 LoRaMacStatus_t status = LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2393
dudmuck 0:8f0d0ae0a077 2394 if( mibSet == NULL )
dudmuck 0:8f0d0ae0a077 2395 {
dudmuck 0:8f0d0ae0a077 2396 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2397 }
dudmuck 0:8f0d0ae0a077 2398 if( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING )
dudmuck 0:8f0d0ae0a077 2399 {
dudmuck 0:8f0d0ae0a077 2400 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2401 }
dudmuck 0:8f0d0ae0a077 2402
dudmuck 0:8f0d0ae0a077 2403 switch( mibSet->Type )
dudmuck 0:8f0d0ae0a077 2404 {
dudmuck 0:8f0d0ae0a077 2405 case MIB_DEVICE_CLASS:
dudmuck 0:8f0d0ae0a077 2406 {
dudmuck 0:8f0d0ae0a077 2407 LoRaMacDeviceClass = mibSet->Param.Class;
dudmuck 0:8f0d0ae0a077 2408 switch( LoRaMacDeviceClass )
dudmuck 0:8f0d0ae0a077 2409 {
dudmuck 0:8f0d0ae0a077 2410 case CLASS_A:
dudmuck 0:8f0d0ae0a077 2411 {
dudmuck 0:8f0d0ae0a077 2412 // Set the radio into sleep to setup a defined state
dudmuck 0:8f0d0ae0a077 2413 Radio.Sleep( );
dudmuck 0:8f0d0ae0a077 2414 break;
dudmuck 0:8f0d0ae0a077 2415 }
dudmuck 0:8f0d0ae0a077 2416 case CLASS_B:
dudmuck 0:8f0d0ae0a077 2417 {
dudmuck 0:8f0d0ae0a077 2418 break;
dudmuck 0:8f0d0ae0a077 2419 }
dudmuck 0:8f0d0ae0a077 2420 case CLASS_D:
dudmuck 1:53c30224eda8 2421 isr_printf("TODO MIB_DEVICE_CLASS:D\r\n");
dudmuck 0:8f0d0ae0a077 2422 break;
dudmuck 0:8f0d0ae0a077 2423 }
dudmuck 0:8f0d0ae0a077 2424 break;
dudmuck 0:8f0d0ae0a077 2425 }
dudmuck 0:8f0d0ae0a077 2426 case MIB_NETWORK_JOINED:
dudmuck 0:8f0d0ae0a077 2427 {
dudmuck 0:8f0d0ae0a077 2428 IsLoRaMacNetworkJoined = mibSet->Param.IsNetworkJoined;
dudmuck 0:8f0d0ae0a077 2429 break;
dudmuck 0:8f0d0ae0a077 2430 }
dudmuck 0:8f0d0ae0a077 2431 case MIB_NET_ID:
dudmuck 0:8f0d0ae0a077 2432 {
dudmuck 0:8f0d0ae0a077 2433 LoRaMacNetID = mibSet->Param.NetID;
dudmuck 0:8f0d0ae0a077 2434 break;
dudmuck 0:8f0d0ae0a077 2435 }
dudmuck 0:8f0d0ae0a077 2436 case MIB_DEV_ADDR:
dudmuck 0:8f0d0ae0a077 2437 {
dudmuck 0:8f0d0ae0a077 2438 LoRaMacDevAddr = mibSet->Param.DevAddr;
dudmuck 0:8f0d0ae0a077 2439 break;
dudmuck 0:8f0d0ae0a077 2440 }
dudmuck 0:8f0d0ae0a077 2441 case MIB_NWK_SKEY:
dudmuck 0:8f0d0ae0a077 2442 {
dudmuck 0:8f0d0ae0a077 2443 if( mibSet->Param.NwkSKey != NULL )
dudmuck 0:8f0d0ae0a077 2444 {
dudmuck 0:8f0d0ae0a077 2445 memcpy1( LoRaMacNwkSKey, mibSet->Param.NwkSKey,
dudmuck 0:8f0d0ae0a077 2446 sizeof( LoRaMacNwkSKey ) );
dudmuck 0:8f0d0ae0a077 2447 }
dudmuck 0:8f0d0ae0a077 2448 else
dudmuck 0:8f0d0ae0a077 2449 {
dudmuck 0:8f0d0ae0a077 2450 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2451 }
dudmuck 0:8f0d0ae0a077 2452 break;
dudmuck 0:8f0d0ae0a077 2453 }
dudmuck 0:8f0d0ae0a077 2454 case MIB_APP_SKEY:
dudmuck 0:8f0d0ae0a077 2455 {
dudmuck 0:8f0d0ae0a077 2456 if( mibSet->Param.AppSKey != NULL )
dudmuck 0:8f0d0ae0a077 2457 {
dudmuck 0:8f0d0ae0a077 2458 memcpy1( LoRaMacAppSKey, mibSet->Param.AppSKey,
dudmuck 0:8f0d0ae0a077 2459 sizeof( LoRaMacAppSKey ) );
dudmuck 0:8f0d0ae0a077 2460 }
dudmuck 0:8f0d0ae0a077 2461 else
dudmuck 0:8f0d0ae0a077 2462 {
dudmuck 0:8f0d0ae0a077 2463 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2464 }
dudmuck 0:8f0d0ae0a077 2465 break;
dudmuck 0:8f0d0ae0a077 2466 }
dudmuck 0:8f0d0ae0a077 2467 case MIB_PUBLIC_NETWORK:
dudmuck 0:8f0d0ae0a077 2468 {
dudmuck 0:8f0d0ae0a077 2469 PublicNetwork = mibSet->Param.EnablePublicNetwork;
dudmuck 0:8f0d0ae0a077 2470 Radio.SetPublicNetwork( PublicNetwork );
dudmuck 0:8f0d0ae0a077 2471 break;
dudmuck 0:8f0d0ae0a077 2472 }
dudmuck 0:8f0d0ae0a077 2473 case MIB_CHANNELS_NB_REP:
dudmuck 0:8f0d0ae0a077 2474 {
dudmuck 0:8f0d0ae0a077 2475 if( ( mibSet->Param.ChannelNbRep >= 1 ) &&
dudmuck 0:8f0d0ae0a077 2476 ( mibSet->Param.ChannelNbRep <= 15 ) )
dudmuck 0:8f0d0ae0a077 2477 {
dudmuck 0:8f0d0ae0a077 2478 LoRaMacParams.ChannelsNbRep = mibSet->Param.ChannelNbRep;
dudmuck 0:8f0d0ae0a077 2479 }
dudmuck 0:8f0d0ae0a077 2480 else
dudmuck 0:8f0d0ae0a077 2481 {
dudmuck 0:8f0d0ae0a077 2482 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2483 }
dudmuck 0:8f0d0ae0a077 2484 break;
dudmuck 0:8f0d0ae0a077 2485 }
dudmuck 0:8f0d0ae0a077 2486 case MIB_MAX_RX_WINDOW_DURATION:
dudmuck 0:8f0d0ae0a077 2487 {
dudmuck 0:8f0d0ae0a077 2488 LoRaMacParams.MaxRxWindow = mibSet->Param.MaxRxWindow;
dudmuck 0:8f0d0ae0a077 2489 break;
dudmuck 0:8f0d0ae0a077 2490 }
dudmuck 0:8f0d0ae0a077 2491 case MIB_CHANNELS_DEFAULT_TX_POWER:
dudmuck 0:8f0d0ae0a077 2492 {
dudmuck 0:8f0d0ae0a077 2493 if( ValueInRange( mibSet->Param.ChannelsDefaultTxPower,
dudmuck 0:8f0d0ae0a077 2494 LORAMAC_MAX_TX_POWER, LORAMAC_MIN_TX_POWER ) )
dudmuck 0:8f0d0ae0a077 2495 {
dudmuck 0:8f0d0ae0a077 2496 LoRaMacParamsDefaults.ChannelsTxPower = mibSet->Param.ChannelsDefaultTxPower;
dudmuck 0:8f0d0ae0a077 2497 }
dudmuck 0:8f0d0ae0a077 2498 else
dudmuck 0:8f0d0ae0a077 2499 {
dudmuck 0:8f0d0ae0a077 2500 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2501 }
dudmuck 0:8f0d0ae0a077 2502 break;
dudmuck 0:8f0d0ae0a077 2503 }
dudmuck 0:8f0d0ae0a077 2504 case MIB_CHANNELS_TX_POWER:
dudmuck 0:8f0d0ae0a077 2505 {
dudmuck 0:8f0d0ae0a077 2506 if( ValueInRange( mibSet->Param.ChannelsTxPower,
dudmuck 0:8f0d0ae0a077 2507 LORAMAC_MAX_TX_POWER, LORAMAC_MIN_TX_POWER ) )
dudmuck 0:8f0d0ae0a077 2508 {
dudmuck 0:8f0d0ae0a077 2509 LoRaMacParams.ChannelsTxPower = mibSet->Param.ChannelsTxPower;
dudmuck 0:8f0d0ae0a077 2510 }
dudmuck 0:8f0d0ae0a077 2511 else
dudmuck 0:8f0d0ae0a077 2512 {
dudmuck 0:8f0d0ae0a077 2513 status = LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2514 }
dudmuck 0:8f0d0ae0a077 2515 break;
dudmuck 0:8f0d0ae0a077 2516 }
dudmuck 0:8f0d0ae0a077 2517 case MIB_UPLINK_COUNTER:
dudmuck 0:8f0d0ae0a077 2518 {
dudmuck 0:8f0d0ae0a077 2519 UpLinkCounter = mibSet->Param.UpLinkCounter;
dudmuck 0:8f0d0ae0a077 2520 break;
dudmuck 0:8f0d0ae0a077 2521 }
dudmuck 0:8f0d0ae0a077 2522 case MIB_DOWNLINK_COUNTER:
dudmuck 0:8f0d0ae0a077 2523 {
dudmuck 0:8f0d0ae0a077 2524 DownLinkCounter = mibSet->Param.DownLinkCounter;
dudmuck 0:8f0d0ae0a077 2525 break;
dudmuck 0:8f0d0ae0a077 2526 }
dudmuck 0:8f0d0ae0a077 2527 case MIB_SYSTEM_MAX_RX_ERROR:
dudmuck 0:8f0d0ae0a077 2528 {
dudmuck 0:8f0d0ae0a077 2529 LoRaMacParams.SystemMaxRxError = LoRaMacParamsDefaults.SystemMaxRxError = mibSet->Param.SystemMaxRxError;
dudmuck 0:8f0d0ae0a077 2530 break;
dudmuck 0:8f0d0ae0a077 2531 }
dudmuck 0:8f0d0ae0a077 2532 case MIB_MIN_RX_SYMBOLS:
dudmuck 0:8f0d0ae0a077 2533 {
dudmuck 0:8f0d0ae0a077 2534 LoRaMacParams.MinRxSymbols = LoRaMacParamsDefaults.MinRxSymbols = mibSet->Param.MinRxSymbols;
dudmuck 0:8f0d0ae0a077 2535 break;
dudmuck 0:8f0d0ae0a077 2536 }
dudmuck 0:8f0d0ae0a077 2537 default:
dudmuck 0:8f0d0ae0a077 2538 status = LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2539 break;
dudmuck 0:8f0d0ae0a077 2540 }
dudmuck 0:8f0d0ae0a077 2541
dudmuck 0:8f0d0ae0a077 2542 return status;
dudmuck 0:8f0d0ae0a077 2543 }
dudmuck 0:8f0d0ae0a077 2544
dudmuck 0:8f0d0ae0a077 2545 LoRaMacStatus_t LoRaMacMulticastChannelLink( MulticastParams_t *channelParam )
dudmuck 0:8f0d0ae0a077 2546 {
dudmuck 0:8f0d0ae0a077 2547 if( channelParam == NULL )
dudmuck 0:8f0d0ae0a077 2548 {
dudmuck 0:8f0d0ae0a077 2549 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2550 }
dudmuck 0:8f0d0ae0a077 2551 if( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING )
dudmuck 0:8f0d0ae0a077 2552 {
dudmuck 0:8f0d0ae0a077 2553 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2554 }
dudmuck 0:8f0d0ae0a077 2555
dudmuck 0:8f0d0ae0a077 2556 // Reset downlink counter
dudmuck 0:8f0d0ae0a077 2557 channelParam->DownLinkCounter = 0;
dudmuck 0:8f0d0ae0a077 2558
dudmuck 0:8f0d0ae0a077 2559 if( MulticastChannels == NULL )
dudmuck 0:8f0d0ae0a077 2560 {
dudmuck 0:8f0d0ae0a077 2561 // New node is the fist element
dudmuck 0:8f0d0ae0a077 2562 MulticastChannels = channelParam;
dudmuck 0:8f0d0ae0a077 2563 }
dudmuck 0:8f0d0ae0a077 2564 else
dudmuck 0:8f0d0ae0a077 2565 {
dudmuck 0:8f0d0ae0a077 2566 MulticastParams_t *cur = MulticastChannels;
dudmuck 0:8f0d0ae0a077 2567
dudmuck 0:8f0d0ae0a077 2568 // Search the last node in the list
dudmuck 0:8f0d0ae0a077 2569 while( cur->Next != NULL )
dudmuck 0:8f0d0ae0a077 2570 {
dudmuck 0:8f0d0ae0a077 2571 cur = cur->Next;
dudmuck 0:8f0d0ae0a077 2572 }
dudmuck 0:8f0d0ae0a077 2573 // This function always finds the last node
dudmuck 0:8f0d0ae0a077 2574 cur->Next = channelParam;
dudmuck 0:8f0d0ae0a077 2575 }
dudmuck 0:8f0d0ae0a077 2576
dudmuck 0:8f0d0ae0a077 2577 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2578 }
dudmuck 0:8f0d0ae0a077 2579
dudmuck 0:8f0d0ae0a077 2580 LoRaMacStatus_t LoRaMacMulticastChannelUnlink( MulticastParams_t *channelParam )
dudmuck 0:8f0d0ae0a077 2581 {
dudmuck 0:8f0d0ae0a077 2582 if( channelParam == NULL )
dudmuck 0:8f0d0ae0a077 2583 {
dudmuck 0:8f0d0ae0a077 2584 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2585 }
dudmuck 0:8f0d0ae0a077 2586 if( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING )
dudmuck 0:8f0d0ae0a077 2587 {
dudmuck 0:8f0d0ae0a077 2588 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2589 }
dudmuck 0:8f0d0ae0a077 2590
dudmuck 0:8f0d0ae0a077 2591 if( MulticastChannels != NULL )
dudmuck 0:8f0d0ae0a077 2592 {
dudmuck 0:8f0d0ae0a077 2593 if( MulticastChannels == channelParam )
dudmuck 0:8f0d0ae0a077 2594 {
dudmuck 0:8f0d0ae0a077 2595 // First element
dudmuck 0:8f0d0ae0a077 2596 MulticastChannels = channelParam->Next;
dudmuck 0:8f0d0ae0a077 2597 }
dudmuck 0:8f0d0ae0a077 2598 else
dudmuck 0:8f0d0ae0a077 2599 {
dudmuck 0:8f0d0ae0a077 2600 MulticastParams_t *cur = MulticastChannels;
dudmuck 0:8f0d0ae0a077 2601
dudmuck 0:8f0d0ae0a077 2602 // Search the node in the list
dudmuck 0:8f0d0ae0a077 2603 while( cur->Next && cur->Next != channelParam )
dudmuck 0:8f0d0ae0a077 2604 {
dudmuck 0:8f0d0ae0a077 2605 cur = cur->Next;
dudmuck 0:8f0d0ae0a077 2606 }
dudmuck 0:8f0d0ae0a077 2607 // If we found the node, remove it
dudmuck 0:8f0d0ae0a077 2608 if( cur->Next )
dudmuck 0:8f0d0ae0a077 2609 {
dudmuck 0:8f0d0ae0a077 2610 cur->Next = channelParam->Next;
dudmuck 0:8f0d0ae0a077 2611 }
dudmuck 0:8f0d0ae0a077 2612 }
dudmuck 0:8f0d0ae0a077 2613 channelParam->Next = NULL;
dudmuck 0:8f0d0ae0a077 2614 }
dudmuck 0:8f0d0ae0a077 2615
dudmuck 0:8f0d0ae0a077 2616 return LORAMAC_STATUS_OK;
dudmuck 0:8f0d0ae0a077 2617 }
dudmuck 0:8f0d0ae0a077 2618
dudmuck 0:8f0d0ae0a077 2619 LoRaMacStatus_t LoRaMacMlmeRequest( MlmeReq_t *mlmeRequest )
dudmuck 0:8f0d0ae0a077 2620 {
dudmuck 0:8f0d0ae0a077 2621 LoRaMacStatus_t status = LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2622 LoRaMacHeader_t macHdr;
dudmuck 0:8f0d0ae0a077 2623
dudmuck 0:8f0d0ae0a077 2624 if( mlmeRequest == NULL )
dudmuck 0:8f0d0ae0a077 2625 {
dudmuck 0:8f0d0ae0a077 2626 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2627 }
dudmuck 0:8f0d0ae0a077 2628 if( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING )
dudmuck 0:8f0d0ae0a077 2629 {
dudmuck 0:8f0d0ae0a077 2630 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2631 }
dudmuck 0:8f0d0ae0a077 2632
dudmuck 0:8f0d0ae0a077 2633 memset1( ( uint8_t* ) &MlmeConfirm, 0, sizeof( MlmeConfirm ) );
dudmuck 0:8f0d0ae0a077 2634
dudmuck 2:f2d9aa163652 2635 MlmeConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_MLMEREQ;
dudmuck 0:8f0d0ae0a077 2636
dudmuck 0:8f0d0ae0a077 2637 switch( mlmeRequest->Type )
dudmuck 0:8f0d0ae0a077 2638 {
dudmuck 0:8f0d0ae0a077 2639 case MLME_JOIN:
dudmuck 0:8f0d0ae0a077 2640 {
dudmuck 0:8f0d0ae0a077 2641 if( ( LoRaMacState & LORAMAC_TX_DELAYED ) == LORAMAC_TX_DELAYED )
dudmuck 0:8f0d0ae0a077 2642 {
dudmuck 0:8f0d0ae0a077 2643 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2644 }
dudmuck 0:8f0d0ae0a077 2645
dudmuck 0:8f0d0ae0a077 2646 if( ( mlmeRequest->Req.Join.DevEui == NULL ) ||
dudmuck 0:8f0d0ae0a077 2647 ( mlmeRequest->Req.Join.AppEui == NULL ) ||
dudmuck 0:8f0d0ae0a077 2648 ( mlmeRequest->Req.Join.AppKey == NULL ) ||
dudmuck 0:8f0d0ae0a077 2649 ( mlmeRequest->Req.Join.NbTrials == 0 ) )
dudmuck 0:8f0d0ae0a077 2650 {
dudmuck 0:8f0d0ae0a077 2651 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2652 }
dudmuck 0:8f0d0ae0a077 2653
dudmuck 0:8f0d0ae0a077 2654 // Enables at least the usage of all datarates.
dudmuck 0:8f0d0ae0a077 2655 if( mlmeRequest->Req.Join.NbTrials < 48 )
dudmuck 0:8f0d0ae0a077 2656 {
dudmuck 0:8f0d0ae0a077 2657 mlmeRequest->Req.Join.NbTrials = 48;
dudmuck 0:8f0d0ae0a077 2658 }
dudmuck 0:8f0d0ae0a077 2659
dudmuck 0:8f0d0ae0a077 2660 LoRaMacFlags.Bits.MlmeReq = 1;
dudmuck 0:8f0d0ae0a077 2661 MlmeConfirm.MlmeRequest = mlmeRequest->Type;
dudmuck 0:8f0d0ae0a077 2662
dudmuck 0:8f0d0ae0a077 2663 LoRaMacDevEui = mlmeRequest->Req.Join.DevEui;
dudmuck 0:8f0d0ae0a077 2664 LoRaMacAppEui = mlmeRequest->Req.Join.AppEui;
dudmuck 0:8f0d0ae0a077 2665 LoRaMacAppKey = mlmeRequest->Req.Join.AppKey;
dudmuck 0:8f0d0ae0a077 2666 MaxJoinRequestTrials = mlmeRequest->Req.Join.NbTrials;
dudmuck 0:8f0d0ae0a077 2667
dudmuck 0:8f0d0ae0a077 2668 // Reset variable JoinRequestTrials
dudmuck 0:8f0d0ae0a077 2669 JoinRequestTrials = 0;
dudmuck 0:8f0d0ae0a077 2670
dudmuck 0:8f0d0ae0a077 2671 // Setup header information
dudmuck 0:8f0d0ae0a077 2672 macHdr.Value = 0;
dudmuck 0:8f0d0ae0a077 2673 macHdr.Bits.MType = FRAME_TYPE_JOIN_REQ;
dudmuck 0:8f0d0ae0a077 2674
dudmuck 0:8f0d0ae0a077 2675 ResetMacParameters( );
dudmuck 0:8f0d0ae0a077 2676
dudmuck 0:8f0d0ae0a077 2677 Channel = 0; // start with first channel
dudmuck 1:53c30224eda8 2678 isr_printf("<ch0>");
dudmuck 1:53c30224eda8 2679
dudmuck 1:53c30224eda8 2680 isr_printf("mlme-join-send ch%u\r\n", Channel);
dudmuck 0:8f0d0ae0a077 2681 status = Send( &macHdr, 0, NULL, 0 );
dudmuck 0:8f0d0ae0a077 2682 break;
dudmuck 0:8f0d0ae0a077 2683 }
dudmuck 0:8f0d0ae0a077 2684 case MLME_LINK_CHECK:
dudmuck 0:8f0d0ae0a077 2685 {
dudmuck 0:8f0d0ae0a077 2686 LoRaMacFlags.Bits.MlmeReq = 1;
dudmuck 0:8f0d0ae0a077 2687 // LoRaMac will send this command piggy-pack
dudmuck 0:8f0d0ae0a077 2688 MlmeConfirm.MlmeRequest = mlmeRequest->Type;
dudmuck 0:8f0d0ae0a077 2689
dudmuck 0:8f0d0ae0a077 2690 status = AddMacCommand( MOTE_MAC_LINK_CHECK_REQ, 0, 0 );
dudmuck 0:8f0d0ae0a077 2691 break;
dudmuck 0:8f0d0ae0a077 2692 }
dudmuck 0:8f0d0ae0a077 2693 case MLME_TXCW:
dudmuck 0:8f0d0ae0a077 2694 {
dudmuck 0:8f0d0ae0a077 2695 MlmeConfirm.MlmeRequest = mlmeRequest->Type;
dudmuck 0:8f0d0ae0a077 2696 LoRaMacFlags.Bits.MlmeReq = 1;
dudmuck 0:8f0d0ae0a077 2697 status = SetTxContinuousWave( mlmeRequest->Req.TxCw.Timeout );
dudmuck 0:8f0d0ae0a077 2698 break;
dudmuck 0:8f0d0ae0a077 2699 }
dudmuck 0:8f0d0ae0a077 2700 case MLME_TXCW_1:
dudmuck 0:8f0d0ae0a077 2701 {
dudmuck 0:8f0d0ae0a077 2702 MlmeConfirm.MlmeRequest = mlmeRequest->Type;
dudmuck 0:8f0d0ae0a077 2703 LoRaMacFlags.Bits.MlmeReq = 1;
dudmuck 0:8f0d0ae0a077 2704 status = SetTxContinuousWave1( mlmeRequest->Req.TxCw.Timeout, mlmeRequest->Req.TxCw.Frequency, mlmeRequest->Req.TxCw.Power );
dudmuck 0:8f0d0ae0a077 2705 break;
dudmuck 0:8f0d0ae0a077 2706 }
dudmuck 0:8f0d0ae0a077 2707 default:
dudmuck 0:8f0d0ae0a077 2708 break;
dudmuck 0:8f0d0ae0a077 2709 }
dudmuck 0:8f0d0ae0a077 2710
dudmuck 0:8f0d0ae0a077 2711 if( status != LORAMAC_STATUS_OK )
dudmuck 0:8f0d0ae0a077 2712 {
dudmuck 0:8f0d0ae0a077 2713 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 2714 LoRaMacFlags.Bits.MlmeReq = 0;
dudmuck 0:8f0d0ae0a077 2715 }
dudmuck 0:8f0d0ae0a077 2716
dudmuck 0:8f0d0ae0a077 2717 return status;
dudmuck 0:8f0d0ae0a077 2718 }
dudmuck 0:8f0d0ae0a077 2719
dudmuck 0:8f0d0ae0a077 2720 LoRaMacStatus_t LoRaMacMcpsRequest( McpsReq_t *mcpsRequest )
dudmuck 0:8f0d0ae0a077 2721 {
dudmuck 0:8f0d0ae0a077 2722 LoRaMacStatus_t status = LORAMAC_STATUS_SERVICE_UNKNOWN;
dudmuck 0:8f0d0ae0a077 2723 LoRaMacHeader_t macHdr;
dudmuck 0:8f0d0ae0a077 2724 uint8_t fPort = 0;
dudmuck 0:8f0d0ae0a077 2725 void *fBuffer;
dudmuck 0:8f0d0ae0a077 2726 uint16_t fBufferSize;
dudmuck 0:8f0d0ae0a077 2727 bool readyToSend = false;
dudmuck 0:8f0d0ae0a077 2728
dudmuck 0:8f0d0ae0a077 2729 if( mcpsRequest == NULL )
dudmuck 0:8f0d0ae0a077 2730 {
dudmuck 0:8f0d0ae0a077 2731 return LORAMAC_STATUS_PARAMETER_INVALID;
dudmuck 0:8f0d0ae0a077 2732 }
dudmuck 0:8f0d0ae0a077 2733 if( ( ( LoRaMacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING ) ||
dudmuck 0:8f0d0ae0a077 2734 ( ( LoRaMacState & LORAMAC_TX_DELAYED ) == LORAMAC_TX_DELAYED ) )
dudmuck 0:8f0d0ae0a077 2735 {
dudmuck 0:8f0d0ae0a077 2736 return LORAMAC_STATUS_BUSY;
dudmuck 0:8f0d0ae0a077 2737 }
dudmuck 0:8f0d0ae0a077 2738
dudmuck 0:8f0d0ae0a077 2739 macHdr.Value = 0;
dudmuck 0:8f0d0ae0a077 2740 memset1 ( ( uint8_t* ) &McpsConfirm, 0, sizeof( McpsConfirm ) );
dudmuck 2:f2d9aa163652 2741 McpsConfirm.Status = LORAMAC_EVENT_INFO_STATUS_ERROR_MCPSREQ;
dudmuck 0:8f0d0ae0a077 2742
dudmuck 0:8f0d0ae0a077 2743 switch( mcpsRequest->Type )
dudmuck 0:8f0d0ae0a077 2744 {
dudmuck 0:8f0d0ae0a077 2745 case MCPS_UNCONFIRMED:
dudmuck 0:8f0d0ae0a077 2746 {
dudmuck 0:8f0d0ae0a077 2747 readyToSend = true;
dudmuck 0:8f0d0ae0a077 2748
dudmuck 0:8f0d0ae0a077 2749 macHdr.Bits.MType = FRAME_TYPE_DATA_UNCONFIRMED_UP;
dudmuck 0:8f0d0ae0a077 2750 fPort = mcpsRequest->Req.Unconfirmed.fPort;
dudmuck 0:8f0d0ae0a077 2751 fBuffer = mcpsRequest->Req.Unconfirmed.fBuffer;
dudmuck 0:8f0d0ae0a077 2752 fBufferSize = mcpsRequest->Req.Unconfirmed.fBufferSize;
dudmuck 0:8f0d0ae0a077 2753 break;
dudmuck 0:8f0d0ae0a077 2754 }
dudmuck 0:8f0d0ae0a077 2755 case MCPS_CONFIRMED:
dudmuck 0:8f0d0ae0a077 2756 {
dudmuck 0:8f0d0ae0a077 2757 readyToSend = true;
dudmuck 0:8f0d0ae0a077 2758
dudmuck 0:8f0d0ae0a077 2759 macHdr.Bits.MType = FRAME_TYPE_DATA_CONFIRMED_UP;
dudmuck 0:8f0d0ae0a077 2760 fPort = mcpsRequest->Req.Confirmed.fPort;
dudmuck 0:8f0d0ae0a077 2761 fBuffer = mcpsRequest->Req.Confirmed.fBuffer;
dudmuck 0:8f0d0ae0a077 2762 fBufferSize = mcpsRequest->Req.Confirmed.fBufferSize;
dudmuck 0:8f0d0ae0a077 2763 break;
dudmuck 0:8f0d0ae0a077 2764 }
dudmuck 0:8f0d0ae0a077 2765 case MCPS_PROPRIETARY:
dudmuck 0:8f0d0ae0a077 2766 {
dudmuck 0:8f0d0ae0a077 2767 readyToSend = true;
dudmuck 0:8f0d0ae0a077 2768
dudmuck 0:8f0d0ae0a077 2769 macHdr.Bits.MType = FRAME_TYPE_PROPRIETARY;
dudmuck 0:8f0d0ae0a077 2770 fBuffer = mcpsRequest->Req.Proprietary.fBuffer;
dudmuck 0:8f0d0ae0a077 2771 fBufferSize = mcpsRequest->Req.Proprietary.fBufferSize;
dudmuck 0:8f0d0ae0a077 2772 break;
dudmuck 0:8f0d0ae0a077 2773 }
dudmuck 0:8f0d0ae0a077 2774 default:
dudmuck 0:8f0d0ae0a077 2775 break;
dudmuck 0:8f0d0ae0a077 2776 }
dudmuck 0:8f0d0ae0a077 2777
dudmuck 0:8f0d0ae0a077 2778 if( readyToSend == true )
dudmuck 0:8f0d0ae0a077 2779 {
dudmuck 0:8f0d0ae0a077 2780 status = Send( &macHdr, fPort, fBuffer, fBufferSize );
dudmuck 0:8f0d0ae0a077 2781 if( status == LORAMAC_STATUS_OK )
dudmuck 0:8f0d0ae0a077 2782 {
dudmuck 0:8f0d0ae0a077 2783 McpsConfirm.McpsRequest = mcpsRequest->Type;
dudmuck 0:8f0d0ae0a077 2784 LoRaMacFlags.Bits.McpsReq = 1;
dudmuck 0:8f0d0ae0a077 2785 }
dudmuck 0:8f0d0ae0a077 2786 else
dudmuck 0:8f0d0ae0a077 2787 {
dudmuck 0:8f0d0ae0a077 2788 NodeAckRequested = false;
dudmuck 0:8f0d0ae0a077 2789 }
dudmuck 0:8f0d0ae0a077 2790 }
dudmuck 0:8f0d0ae0a077 2791
dudmuck 0:8f0d0ae0a077 2792 return status;
dudmuck 0:8f0d0ae0a077 2793 }
dudmuck 0:8f0d0ae0a077 2794
dudmuck 0:8f0d0ae0a077 2795 void LoRaMacTestRxWindowsOn( bool enable )
dudmuck 0:8f0d0ae0a077 2796 {
dudmuck 0:8f0d0ae0a077 2797 IsRxWindowsEnabled = enable;
dudmuck 0:8f0d0ae0a077 2798 }
dudmuck 0:8f0d0ae0a077 2799
dudmuck 0:8f0d0ae0a077 2800 void LoRaMacTestSetMic( uint16_t txPacketCounter )
dudmuck 0:8f0d0ae0a077 2801 {
dudmuck 0:8f0d0ae0a077 2802 UpLinkCounter = txPacketCounter;
dudmuck 0:8f0d0ae0a077 2803 IsUpLinkCounterFixed = true;
dudmuck 0:8f0d0ae0a077 2804 }
dudmuck 0:8f0d0ae0a077 2805
dudmuck 0:8f0d0ae0a077 2806 void LoRaMacTestSetChannel( uint8_t channel )
dudmuck 0:8f0d0ae0a077 2807 {
dudmuck 1:53c30224eda8 2808 isr_printf("set-testch%u\r\n", channel);
dudmuck 0:8f0d0ae0a077 2809 Channel = channel;
dudmuck 0:8f0d0ae0a077 2810 }
dudmuck 0:8f0d0ae0a077 2811
dudmuck 0:8f0d0ae0a077 2812
dudmuck 0:8f0d0ae0a077 2813 static RxConfigParams_t ComputeRxWindowParameters( int8_t datarate, uint32_t rxError )
dudmuck 0:8f0d0ae0a077 2814 {
dudmuck 0:8f0d0ae0a077 2815 RxConfigParams_t rxConfigParams = { 0, 0, 0, 0 };
dudmuck 0:8f0d0ae0a077 2816 double tSymbol = 0.0;
dudmuck 0:8f0d0ae0a077 2817
dudmuck 0:8f0d0ae0a077 2818 rxConfigParams.Datarate = datarate;
dudmuck 0:8f0d0ae0a077 2819 switch( Bandwidths[datarate] )
dudmuck 0:8f0d0ae0a077 2820 {
dudmuck 0:8f0d0ae0a077 2821 default:
dudmuck 0:8f0d0ae0a077 2822 case 125000:
dudmuck 0:8f0d0ae0a077 2823 rxConfigParams.Bandwidth = 0;
dudmuck 0:8f0d0ae0a077 2824 break;
dudmuck 0:8f0d0ae0a077 2825 case 250000:
dudmuck 0:8f0d0ae0a077 2826 rxConfigParams.Bandwidth = 1;
dudmuck 0:8f0d0ae0a077 2827 break;
dudmuck 0:8f0d0ae0a077 2828 case 500000:
dudmuck 0:8f0d0ae0a077 2829 rxConfigParams.Bandwidth = 2;
dudmuck 0:8f0d0ae0a077 2830 break;
dudmuck 0:8f0d0ae0a077 2831 }
dudmuck 0:8f0d0ae0a077 2832
dudmuck 0:8f0d0ae0a077 2833 #if defined( USE_BAND_433 ) || defined( USE_BAND_780 ) || defined( USE_BAND_868 )
dudmuck 0:8f0d0ae0a077 2834 if( datarate == DR_7 )
dudmuck 0:8f0d0ae0a077 2835 { // FSK
dudmuck 0:8f0d0ae0a077 2836 tSymbol = ( 1.0 / ( double )Datarates[datarate] ) * 8.0; // 1 symbol equals 1 byte
dudmuck 0:8f0d0ae0a077 2837 }
dudmuck 0:8f0d0ae0a077 2838 else
dudmuck 0:8f0d0ae0a077 2839 #endif
dudmuck 0:8f0d0ae0a077 2840 { // LoRa
dudmuck 0:8f0d0ae0a077 2841 tSymbol = ( ( double )( 1 << Datarates[datarate] ) / ( double )Bandwidths[datarate] ) * 1e3;
dudmuck 0:8f0d0ae0a077 2842 }
dudmuck 0:8f0d0ae0a077 2843
dudmuck 0:8f0d0ae0a077 2844 rxConfigParams.RxWindowTimeout = MAX( ( uint32_t )ceil( ( ( 2 * LoRaMacParams.MinRxSymbols - 8 ) * tSymbol + 2 * rxError ) / tSymbol ), LoRaMacParams.MinRxSymbols ); // Computed number of symbols
dudmuck 0:8f0d0ae0a077 2845
dudmuck 0:8f0d0ae0a077 2846 rxConfigParams.RxOffset = ( int32_t )ceil( ( 4.0 * tSymbol ) - ( ( rxConfigParams.RxWindowTimeout * tSymbol ) / 2.0 ) - RADIO_WAKEUP_TIME );
dudmuck 0:8f0d0ae0a077 2847
dudmuck 0:8f0d0ae0a077 2848 return rxConfigParams;
dudmuck 0:8f0d0ae0a077 2849 }
dudmuck 0:8f0d0ae0a077 2850