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C implementation for TheThingsNetwork
This commit is contained in:
Manuel Bleichenbacher
14
.vscode/settings.json
vendored
14
.vscode/settings.json
vendored
@ -1,19 +1,11 @@
|
||||
{
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||||
"files.associations": {
|
||||
"provisioning.h": "c",
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||||
"config.h": "c",
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||||
"sdkconfig.h": "c",
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||||
"oslmic.h": "c",
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||||
"hal_esp32.h": "c",
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||||
"esp_log.h": "c",
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||||
"nvs_flash.h": "c",
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"__config": "c",
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||||
"__nullptr": "c",
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||||
"stdint.h": "c",
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||||
"*.ipp": "c",
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||||
"algorithm": "c",
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||||
"random": "c",
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||||
"complex": "c",
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"valarray": "c"
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||||
"lmic.h": "c",
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"ttn_provisioning.h": "c",
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"lorabase.h": "c"
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}
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}
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@ -2,37 +2,30 @@
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*
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* ttn-esp32 - The Things Network device library for ESP-IDF / SX127x
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*
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* Copyright (c) 2018 Manuel Bleichenbacher
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* Copyright (c) 2018-2021 Manuel Bleichenbacher
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*
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* Licensed under MIT License
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||||
* https://opensource.org/licenses/MIT
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||||
*
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||||
* High-level API for ttn-esp32.
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* High-level C++ API for ttn-esp32.
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*******************************************************************************/
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#ifndef _THETHINGSNETWORK_H_
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#define _THETHINGSNETWORK_H_
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#include <stdint.h>
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#include "driver/spi_master.h"
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#include "ttn.h"
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/**
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* @brief Constant for indicating that a pin is not connected
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*/
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#define TTN_NOT_CONNECTED 0xff
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typedef uint8_t port_t;
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typedef ttn_port_t port_t;
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/**
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* @brief Response codes
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*/
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enum TTNResponseCode
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{
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kTTNErrorTransmissionFailed = -1,
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kTTNErrorUnexpected = -10,
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kTTNSuccessfulTransmission = 1,
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kTTNSuccessfulReceive = 2
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kTTNErrorTransmissionFailed = TTN_ERROR_TRANSMISSION_FAILED,
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kTTNErrorUnexpected = TTN_ERROR_UNEXPECTED,
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kTTNSuccessfulTransmission = TTN_SUCCESSFUL_TRANSMISSION,
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kTTNSuccessfulReceive = TTN_SUCCESSFUL_RECEIVE
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};
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@ -44,19 +37,19 @@ enum TTNRxTxWindow
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/**
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* @brief Outside RX/TX window
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*/
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kTTNIdleWindow = 0,
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kTTNIdleWindow = TTN_WINDOW_IDLE,
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/**
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* @brief Transmission window (up to RX1 window)
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*/
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kTTNTxWindow = 1,
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kTTNTxWindow = TTN_WINDOW_TX,
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/**
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* @brief Reception window 1 (up to RX2 window)
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*/
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kTTNRx1Window = 2,
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kTTNRx1Window = TTN_WINDOW_RX1,
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/**
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* @brief Reception window 2
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*/
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kTTNRx2Window = 3
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kTTNRx2Window = TTN_WINDOW_RX2
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};
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@ -68,35 +61,35 @@ enum TTNSpreadingFactor
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/**
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* @brief Unused / undefined spreading factor
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*/
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kTTNSFNone = 0,
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kTTNSFNone = TTN_SF_NONE,
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/**
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* @brief Frequency Shift Keying (FSK)
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*/
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kTTNFSK = 1,
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kTTNFSK = TTN_FSK,
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/**
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* @brief Spreading Factor 7 (SF7)
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*/
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kTTNSF7 = 2,
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kTTNSF7 = TTN_SF7,
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/**
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* @brief Spreading Factor 8 (SF8)
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*/
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kTTNSF8 = 3,
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kTTNSF8 = TTN_SF8,
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/**
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* @brief Spreading Factor 9 (SF9)
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*/
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kTTNSF9 = 4,
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kTTNSF9 = TTN_SF9,
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/**
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* @brief Spreading Factor 10 (SF10)
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*/
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kTTNSF10 = 5,
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kTTNSF10 = TTN_SF10,
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/**
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* @brief Spreading Factor 11 (SF11)
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*/
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kTTNSF11 = 6,
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kTTNSF11 = TTN_SF11,
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/**
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* @brief Spreading Factor 12 (SF12)
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*/
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kTTNSF12 = 7
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kTTNSF12 = TTN_SF12
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};
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@ -108,19 +101,19 @@ enum TTNBandwidth
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/**
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* @brief Undefined/unused bandwidth
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*/
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kTTNBWNone = 0,
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kTTNBWNone = TTN_BW_NONE,
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/**
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* @brief Bandwidth of 125 kHz
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*/
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kTTNBW125 = 1,
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kTTNBW125 = TTN_BW125,
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/**
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* @brief Bandwidth of 250 kHz
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*/
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kTTNBW250 = 2,
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kTTNBW250 = TTN_BW250,
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/**
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* @brief Bandwidth of 500 kHz
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*/
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kTTNBW500 = 3
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kTTNBW500 = TTN_BW500
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};
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@ -167,12 +160,12 @@ public:
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/**
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* @brief Constructs a new The Things Network device instance.
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*/
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TheThingsNetwork();
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TheThingsNetwork() { ttn_init(); }
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/**
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* @brief Destroys the The Things Network device instance.
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*/
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~TheThingsNetwork();
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~TheThingsNetwork() { }
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/**
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* @brief Resets the LoRaWAN radio.
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@ -180,7 +173,7 @@ public:
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* To restart communication, join() must be called.
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* It neither clears the provisioned keys nor the configured pins.
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*/
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void reset();
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void reset() { ttn_reset(); }
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/**
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* @brief Configures the pins used to communicate with the LoRaWAN radio chip.
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@ -195,7 +188,10 @@ public:
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* @param dio0 The GPIO pin number connected to the radio chip's DIO0 pin
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* @param dio1 The GPIO pin number connected to the radio chip's DIO1 pin
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*/
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void configurePins(spi_host_device_t spi_host, uint8_t nss, uint8_t rxtx, uint8_t rst, uint8_t dio0, uint8_t dio1);
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void configurePins(spi_host_device_t spi_host, uint8_t nss, uint8_t rxtx, uint8_t rst, uint8_t dio0, uint8_t dio1)
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{
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ttn_configure_pins(spi_host, nss, rxtx, rst, dio0, dio1);
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}
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/**
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* @brief Sets the credentials needed to activate the device via OTAA, without activating it.
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@ -210,7 +206,7 @@ public:
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* @param appKey App Key of the device (32 character string with hexadecimal data)
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* @return `true` if the provisioning was successful, `false` if the provisioning failed
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*/
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bool provision(const char *devEui, const char *appEui, const char *appKey);
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bool provision(const char *devEui, const char *appEui, const char *appKey) { return ttn_provision(devEui, appEui, appKey); }
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/**
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* @brief Sets the information needed to activate the device via OTAA, using the MAC to generate the device EUI
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@ -234,14 +230,14 @@ public:
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* @param appKey App Key of the device (32 character string with hexadecimal data)
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* @return `true` if the provisioning was successful, `false` if the provisioning failed
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*/
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bool provisionWithMAC(const char *appEui, const char *appKey);
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bool provisionWithMAC(const char *appEui, const char *appKey) { return ttn_provision_with_mac(appEui, appKey); }
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/**
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* @brief Starts task listening on configured UART for AT commands.
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*
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* Run `make menuconfig` to configure it.
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*/
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void startProvisioningTask();
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void startProvisioningTask() { ttn_start_provisioning_task(); }
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/**
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* @brief Waits until the device EUI, app EUI and app key have been provisioned
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@ -251,7 +247,7 @@ public:
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* or call of join(const char*, const char*, const char*), this function
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* immediately returns.
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*/
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void waitForProvisioning();
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void waitForProvisioning() { ttn_wait_for_provisioning(); }
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/**
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* @brief Activates the device via OTAA.
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@ -263,7 +259,7 @@ public:
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*
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* @return `true` if the activation was succesful, `false` if the activation failed
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*/
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bool join();
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bool join() { return ttn_join_provisioned(); }
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/**
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* @brief Sets the device EUI, app EUI and app key and activate the device via OTAA.
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@ -277,7 +273,7 @@ public:
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* @param appKey App Key of the device (32 character string with hexadecimal data)
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* @return `true` if the activation was succesful, `false` if the activation failed
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*/
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bool join(const char *devEui, const char *appEui, const char *appKey);
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bool join(const char *devEui, const char *appEui, const char *appKey) { return ttn_join(devEui, appEui, appKey); }
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/**
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* @brief Transmits a message
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@ -292,7 +288,10 @@ public:
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* @param confirm flag indicating if a confirmation should be requested. Defaults to `false`
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* @return `kTTNSuccessfulTransmission` for successful transmission, `kTTNErrorTransmissionFailed` for failed transmission, `kTTNErrorUnexpected` for unexpected error
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*/
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TTNResponseCode transmitMessage(const uint8_t *payload, size_t length, port_t port = 1, bool confirm = false);
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TTNResponseCode transmitMessage(const uint8_t *payload, size_t length, port_t port = 1, bool confirm = false)
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{
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return static_cast<TTNResponseCode>(ttn_transmit_message(payload, length, port, confirm));
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}
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/**
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* @brief Sets the function to be called when a message is received
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@ -308,7 +307,7 @@ public:
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*
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* @param callback the callback function
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*/
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void onMessage(TTNMessageCallback callback);
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void onMessage(TTNMessageCallback callback) { ttn_on_message(callback); }
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/**
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* @brief Checks if device EUI, app EUI and app key have been stored in non-volatile storage
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@ -316,7 +315,7 @@ public:
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*
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* @return `true` if they are stored, complete and of the correct size, `false` otherwise
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*/
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bool isProvisioned();
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bool isProvisioned() { return ttn_is_provisioned(); }
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/**
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* @brief Sets the RSSI calibration value for LBT (Listen Before Talk).
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@ -327,14 +326,14 @@ public:
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*
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* @param rssiCal RSSI calibration value, in dB
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*/
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void setRSSICal(int8_t rssiCal);
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void setRSSICal(int8_t rssiCal) { ttn_set_rssi_cal(rssiCal); }
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/**
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* Returns whether Adaptive Data Rate (ADR) is enabled.
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*
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* @return `true` if enabled, `false` if disabled
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*/
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bool adrEnabled();
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bool adrEnabled() { return ttn_adr_enabled(); }
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/**
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* @brief Enables or disabled Adaptive Data Rate (ADR).
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@ -344,7 +343,7 @@ public:
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*
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* @param enabled `true` to enable, `false` to disable
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||||
*/
|
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void setAdrEnabled(bool enabled);
|
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void setAdrEnabled(bool enabled) { ttn_set_adr_enabled(enabled); }
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||||
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||||
/**
|
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* @brief Stops all activies and shuts down the RF module and the background tasks.
|
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@ -352,20 +351,20 @@ public:
|
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* To restart communication, startup() and join() must be called.
|
||||
* it neither clears the provisioned keys nor the configured pins.
|
||||
*/
|
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void shutdown();
|
||||
void shutdown() { ttn_shutdown(); }
|
||||
|
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/**
|
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* @brief Restarts the background tasks and RF module.
|
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*
|
||||
* This member function must only be called after a call to shutdowna().
|
||||
*/
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||||
void startup();
|
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void startup() { ttn_startup(); }
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||||
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||||
/**
|
||||
* @brief Gets current RX/TX window
|
||||
* @return window
|
||||
*/
|
||||
TTNRxTxWindow rxTxWindow();
|
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TTNRxTxWindow rxTxWindow() { return static_cast<TTNRxTxWindow>(ttn_rx_tx_window()); }
|
||||
|
||||
/**
|
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* @brief Gets the RF settings for the specified window
|
||||
@ -377,19 +376,19 @@ public:
|
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* @brief Gets the RF settings of the last (or ongoing) transmission.
|
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* @return RF settings
|
||||
*/
|
||||
TTNRFSettings txSettings();
|
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TTNRFSettings txSettings() { return getRFSettings(kTTNTxWindow); }
|
||||
|
||||
/**
|
||||
* @brief Gets the RF settings of the last (or ongoing) reception of RX window 1.
|
||||
* @return RF settings
|
||||
*/
|
||||
TTNRFSettings rx1Settings();
|
||||
TTNRFSettings rx1Settings() { return getRFSettings(kTTNRx1Window); }
|
||||
|
||||
/**
|
||||
* @brief Gets the RF settings of the last (or ongoing) reception of RX window 2.
|
||||
* @return RF settings
|
||||
*/
|
||||
TTNRFSettings rx2Settings();
|
||||
TTNRFSettings rx2Settings() { return getRFSettings(kTTNRx2Window); }
|
||||
|
||||
/**
|
||||
* @brief Gets the received signal strength indicator (RSSI).
|
||||
@ -398,12 +397,7 @@ public:
|
||||
*
|
||||
* @return RSSI, in dBm
|
||||
*/
|
||||
int rssi();
|
||||
|
||||
private:
|
||||
TTNMessageCallback messageCallback;
|
||||
|
||||
bool joinCore();
|
||||
int rssi() { return ttn_rssi(); }
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
400
include/ttn.h
Normal file
400
include/ttn.h
Normal file
@ -0,0 +1,400 @@
|
||||
/*******************************************************************************
|
||||
*
|
||||
* ttn-esp32 - The Things Network device library for ESP-IDF / SX127x
|
||||
*
|
||||
* Copyright (c) 2018-2021 Manuel Bleichenbacher
|
||||
*
|
||||
* Licensed under MIT License
|
||||
* https://opensource.org/licenses/MIT
|
||||
*
|
||||
* High-level C API for ttn-esp32.
|
||||
*******************************************************************************/
|
||||
|
||||
#ifndef TTN_C_H
|
||||
#define TTN_C_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include "driver/spi_master.h"
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
|
||||
/**
|
||||
* @brief Constant for indicating that a pin is not connected
|
||||
*/
|
||||
#define TTN_NOT_CONNECTED 0xff
|
||||
|
||||
|
||||
typedef uint8_t ttn_port_t;
|
||||
|
||||
/**
|
||||
* @brief Response codes
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
TTN_ERROR_TRANSMISSION_FAILED = -1,
|
||||
TTN_ERROR_UNEXPECTED = -10,
|
||||
TTN_SUCCESSFUL_TRANSMISSION = 1,
|
||||
TTN_SUCCESSFUL_RECEIVE = 2
|
||||
} ttn_response_code_t;
|
||||
|
||||
|
||||
/**
|
||||
* @brief RX/TX window
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
/**
|
||||
* @brief Outside RX/TX window
|
||||
*/
|
||||
TTN_WINDOW_IDLE = 0,
|
||||
/**
|
||||
* @brief Transmission window (up to RX1 window)
|
||||
*/
|
||||
TTN_WINDOW_TX = 1,
|
||||
/**
|
||||
* @brief Reception window 1 (up to RX2 window)
|
||||
*/
|
||||
TTN_WINDOW_RX1 = 2,
|
||||
/**
|
||||
* @brief Reception window 2
|
||||
*/
|
||||
TTN_WINDOW_RX2 = 3
|
||||
} ttn_rx_tx_window_t;
|
||||
|
||||
|
||||
/**
|
||||
* @brief Spreading Factor
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
/**
|
||||
* @brief Unused / undefined spreading factor
|
||||
*/
|
||||
TTN_SF_NONE = 0,
|
||||
/**
|
||||
* @brief Frequency Shift Keying (FSK)
|
||||
*/
|
||||
TTN_FSK = 1,
|
||||
/**
|
||||
* @brief Spreading Factor 7 (SF7)
|
||||
*/
|
||||
TTN_SF7 = 2,
|
||||
/**
|
||||
* @brief Spreading Factor 8 (SF8)
|
||||
*/
|
||||
TTN_SF8 = 3,
|
||||
/**
|
||||
* @brief Spreading Factor 9 (SF9)
|
||||
*/
|
||||
TTN_SF9 = 4,
|
||||
/**
|
||||
* @brief Spreading Factor 10 (SF10)
|
||||
*/
|
||||
TTN_SF10 = 5,
|
||||
/**
|
||||
* @brief Spreading Factor 11 (SF11)
|
||||
*/
|
||||
TTN_SF11 = 6,
|
||||
/**
|
||||
* @brief Spreading Factor 12 (SF12)
|
||||
*/
|
||||
TTN_SF12 = 7
|
||||
} ttn_spreading_factor_t;
|
||||
|
||||
|
||||
/**
|
||||
* @brief Bandwidth
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
/**
|
||||
* @brief Undefined/unused bandwidth
|
||||
*/
|
||||
TTN_BW_NONE = 0,
|
||||
/**
|
||||
* @brief Bandwidth of 125 kHz
|
||||
*/
|
||||
TTN_BW125 = 1,
|
||||
/**
|
||||
* @brief Bandwidth of 250 kHz
|
||||
*/
|
||||
TTN_BW250 = 2,
|
||||
/**
|
||||
* @brief Bandwidth of 500 kHz
|
||||
*/
|
||||
TTN_BW500 = 3
|
||||
} ttn_bandwidth_t;
|
||||
|
||||
|
||||
/**
|
||||
* @brief RF settings for TX or RX
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
/**
|
||||
* @brief Spreading Factor (SF)
|
||||
*/
|
||||
ttn_spreading_factor_t spreading_factor;
|
||||
/**
|
||||
* @brief Bandwidth (BW)
|
||||
*/
|
||||
ttn_bandwidth_t bandwidth;
|
||||
/**
|
||||
* @brief Frequency, in Hz
|
||||
*/
|
||||
uint32_t frequency;
|
||||
} ttn_rf_settings_t;
|
||||
|
||||
|
||||
/**
|
||||
* @brief Callback for recieved messages
|
||||
*
|
||||
* @param payload pointer to the received bytes
|
||||
* @param length number of received bytes
|
||||
* @param port port the message was received on
|
||||
*/
|
||||
typedef void (*ttn_message_cb)(const uint8_t* payload, size_t length, ttn_port_t port);
|
||||
|
||||
|
||||
/**
|
||||
* @brief Constructs a new The Things Network device instance.
|
||||
*/
|
||||
void ttn_init(void);
|
||||
|
||||
/**
|
||||
* @brief Resets the LoRaWAN radio.
|
||||
*
|
||||
* To restart communication, join() must be called.
|
||||
* It neither clears the provisioned keys nor the configured pins.
|
||||
*/
|
||||
void ttn_reset(void);
|
||||
|
||||
/**
|
||||
* @brief Configures the pins used to communicate with the LoRaWAN radio chip.
|
||||
*
|
||||
* Before calling this member function, the SPI bus needs to be configured using `spi_bus_initialize()`.
|
||||
* Additionally, `gpio_install_isr_service()` must have been called to initialize the GPIO ISR handler service.
|
||||
*
|
||||
* @param spi_host The SPI bus/peripherial to use (`SPI_HOST`, `HSPI_HOST` or `VSPI_HOST`).
|
||||
* @param nss The GPIO pin number connected to the radio chip's NSS pin (serving as the SPI chip select)
|
||||
* @param rxtx The GPIO pin number connected to the radio chip's RXTX pin (`TTN_NOT_CONNECTED` if not connected)
|
||||
* @param rst The GPIO pin number connected to the radio chip's RST pin (`TTN_NOT_CONNECTED` if not connected)
|
||||
* @param dio0 The GPIO pin number connected to the radio chip's DIO0 pin
|
||||
* @param dio1 The GPIO pin number connected to the radio chip's DIO1 pin
|
||||
*/
|
||||
void ttn_configure_pins(spi_host_device_t spi_host, uint8_t nss, uint8_t rxtx, uint8_t rst, uint8_t dio0, uint8_t dio1);
|
||||
|
||||
/**
|
||||
* @brief Sets the credentials needed to activate the device via OTAA, without activating it.
|
||||
*
|
||||
* The provided device EUI, app EUI and app key are saved in non-volatile memory. Before
|
||||
* this function is called, `nvs_flash_init()` must have been called once.
|
||||
*
|
||||
* Call join() to activate the device.
|
||||
*
|
||||
* @param dev_eui Device EUI (16 character string with hexadecimal data)
|
||||
* @param app_eui Application EUI of the device (16 character string with hexadecimal data)
|
||||
* @param app_key App Key of the device (32 character string with hexadecimal data)
|
||||
* @return `true` if the provisioning was successful, `false` if the provisioning failed
|
||||
*/
|
||||
bool ttn_provision(const char *dev_eui, const char *app_eui, const char *app_key);
|
||||
|
||||
/**
|
||||
* @brief Sets the information needed to activate the device via OTAA, using the MAC to generate the device EUI
|
||||
* and without activating it.
|
||||
*
|
||||
* The generated device EUI and the provided app EUI and app key are saved in non-volatile memory. Before
|
||||
* this function is called, 'nvs_flash_init' must have been called once.
|
||||
*
|
||||
* The device EUI is generated by retrieving the ESP32's WiFi MAC address and expanding it into a device EUI
|
||||
* by adding FFFE in the middle. So the MAC address A0:B1:C2:01:02:03 becomes the EUI A0B1C2FFFE010203.
|
||||
* This hexadecimal data can be entered into the Device EUI field in the TTN console.
|
||||
*
|
||||
* Generating the device EUI from the MAC address allows to flash the same app EUI and app key to a batch of
|
||||
* devices. However, using the same app key for multiple devices is insecure. Only use this approach if
|
||||
* it is okay for that the LoRa communication of your application can easily be intercepted and that
|
||||
* forged data can be injected.
|
||||
*
|
||||
* Call join() to activate.
|
||||
*
|
||||
* @param app_eui Application EUI of the device (16 character string with hexadecimal data)
|
||||
* @param app_key App Key of the device (32 character string with hexadecimal data)
|
||||
* @return `true` if the provisioning was successful, `false` if the provisioning failed
|
||||
*/
|
||||
bool ttn_provision_with_mac(const char *app_eui, const char *app_key);
|
||||
|
||||
/**
|
||||
* @brief Starts task listening on configured UART for AT commands.
|
||||
*
|
||||
* Run `make menuconfig` to configure it.
|
||||
*/
|
||||
void ttn_start_provisioning_task(void);
|
||||
|
||||
/**
|
||||
* @brief Waits until the device EUI, app EUI and app key have been provisioned
|
||||
* by the provisioning task.
|
||||
*
|
||||
* If the device has already been provisioned (stored data in NVS, call of provision()
|
||||
* or call of join(const char*, const char*, const char*), this function
|
||||
* immediately returns.
|
||||
*/
|
||||
void ttn_wait_for_provisioning(void);
|
||||
|
||||
/**
|
||||
* @brief Activates the device via OTAA.
|
||||
*
|
||||
* The app EUI, app key and dev EUI must have already been provisioned by a call to provision().
|
||||
* Before this function is called, `nvs_flash_init()` must have been called once.
|
||||
*
|
||||
* The function blocks until the activation has completed or failed.
|
||||
*
|
||||
* @return `true` if the activation was succesful, `false` if the activation failed
|
||||
*/
|
||||
bool ttn_join_provisioned(void);
|
||||
|
||||
/**
|
||||
* @brief Sets the device EUI, app EUI and app key and activate the device via OTAA.
|
||||
*
|
||||
* The device EUI, app EUI and app key are NOT saved in non-volatile memory.
|
||||
*
|
||||
* The function blocks until the activation has completed or failed.
|
||||
*
|
||||
* @param dev_eui Device EUI (16 character string with hexadecimal data)
|
||||
* @param app_eui Application EUI of the device (16 character string with hexadecimal data)
|
||||
* @param app_key App Key of the device (32 character string with hexadecimal data)
|
||||
* @return `true` if the activation was succesful, `false` if the activation failed
|
||||
*/
|
||||
bool ttn_join(const char *dev_eui, const char *app_eui, const char *app_key);
|
||||
|
||||
/**
|
||||
* @brief Transmits a message
|
||||
*
|
||||
* The function blocks until the message could be transmitted and a message has been received
|
||||
* in the subsequent receive window (or the window expires). Additionally, the function will
|
||||
* first wait until the duty cycle allows a transmission (enforcing the duty cycle limits).
|
||||
*
|
||||
* @param payload bytes to be transmitted
|
||||
* @param length number of bytes to be transmitted
|
||||
* @param port port (use 1 as default)
|
||||
* @param confirm flag indicating if a confirmation should be requested (use `false` as default)
|
||||
* @return `kTTNSuccessfulTransmission` for successful transmission, `kTTNErrorTransmissionFailed` for failed transmission, `kTTNErrorUnexpected` for unexpected error
|
||||
*/
|
||||
ttn_response_code_t ttn_transmit_message(const uint8_t *payload, size_t length, ttn_port_t port, bool confirm);
|
||||
|
||||
/**
|
||||
* @brief Sets the function to be called when a message is received
|
||||
*
|
||||
* When a message is received, the specified function is called. The
|
||||
* message, its length and the port number are provided as
|
||||
* parameters. The values are only valid during the duration of the
|
||||
* callback. So they must be immediately processed or copied.
|
||||
*
|
||||
* Messages are received as a result of transmitMessage(). The callback is called
|
||||
* in the task that called any of these functions and it occurs before these functions
|
||||
* return control to the caller.
|
||||
*
|
||||
* @param callback the callback function
|
||||
*/
|
||||
void ttn_on_message(ttn_message_cb callback);
|
||||
|
||||
/**
|
||||
* @brief Checks if device EUI, app EUI and app key have been stored in non-volatile storage
|
||||
* or have been provided as by a call to join(const char*, const char*, const char*).
|
||||
*
|
||||
* @return `true` if they are stored, complete and of the correct size, `false` otherwise
|
||||
*/
|
||||
bool ttn_is_provisioned(void);
|
||||
|
||||
/**
|
||||
* @brief Sets the RSSI calibration value for LBT (Listen Before Talk).
|
||||
*
|
||||
* This value is added to RSSI measured prior to decision. It must include the guardband.
|
||||
* Ignored in US, EU, IN and other countries where LBT is not required.
|
||||
* Defaults to 10 dB.
|
||||
*
|
||||
* @param rssi_cal RSSI calibration value, in dB
|
||||
*/
|
||||
void ttn_set_rssi_cal(int8_t rssi_cal);
|
||||
|
||||
/**
|
||||
* Returns whether Adaptive Data Rate (ADR) is enabled.
|
||||
*
|
||||
* @return `true` if enabled, `false` if disabled
|
||||
*/
|
||||
bool ttn_adr_enabled(void);
|
||||
|
||||
/**
|
||||
* @brief Enables or disabled Adaptive Data Rate (ADR).
|
||||
*
|
||||
* ADR is enabled by default. It optimizes data rate, airtime and energy consumption
|
||||
* for devices with stable RF conditions. It should be turned off for mobile devices.
|
||||
*
|
||||
* @param enabled `true` to enable, `false` to disable
|
||||
*/
|
||||
void ttn_set_adr_enabled(bool enabled);
|
||||
|
||||
/**
|
||||
* @brief Stops all activies and shuts down the RF module and the background tasks.
|
||||
*
|
||||
* To restart communication, startup() and join() must be called.
|
||||
* it neither clears the provisioned keys nor the configured pins.
|
||||
*/
|
||||
void ttn_shutdown(void);
|
||||
|
||||
/**
|
||||
* @brief Restarts the background tasks and RF module.
|
||||
*
|
||||
* This member function must only be called after a call to shutdowna().
|
||||
*/
|
||||
void ttn_startup(void);
|
||||
|
||||
/**
|
||||
* @brief Gets current RX/TX window
|
||||
* @return window
|
||||
*/
|
||||
ttn_rx_tx_window_t ttn_rx_tx_window(void);
|
||||
|
||||
/**
|
||||
* @brief Gets the RF settings for the specified window
|
||||
* @param window RX/TX windows (valid values are `kTTNTxWindow`, `kTTNRx1Window` and `kTTNRx2Window`)
|
||||
*/
|
||||
ttn_rf_settings_t ttn_get_rf_settings(ttn_rx_tx_window_t window);
|
||||
|
||||
/**
|
||||
* @brief Gets the RF settings of the last (or ongoing) transmission.
|
||||
* @return RF settings
|
||||
*/
|
||||
ttn_rf_settings_t ttn_tx_settings(void);
|
||||
|
||||
/**
|
||||
* @brief Gets the RF settings of the last (or ongoing) reception of RX window 1.
|
||||
* @return RF settings
|
||||
*/
|
||||
ttn_rf_settings_t ttn_rx1_settings(void);
|
||||
|
||||
/**
|
||||
* @brief Gets the RF settings of the last (or ongoing) reception of RX window 2.
|
||||
* @return RF settings
|
||||
*/
|
||||
ttn_rf_settings_t ttn_rx2_settings(void);
|
||||
|
||||
/**
|
||||
* @brief Gets the received signal strength indicator (RSSI).
|
||||
*
|
||||
* RSSI is the measured signal strength of the last recevied message (incl. join responses).
|
||||
*
|
||||
* @return RSSI, in dBm
|
||||
*/
|
||||
int ttn_rssi();
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#endif
|
||||
@ -2,422 +2,23 @@
|
||||
*
|
||||
* ttn-esp32 - The Things Network device library for ESP-IDF / SX127x
|
||||
*
|
||||
* Copyright (c) 2018-2019 Manuel Bleichenbacher
|
||||
* Copyright (c) 2018-2021 Manuel Bleichenbacher
|
||||
*
|
||||
* Licensed under MIT License
|
||||
* https://opensource.org/licenses/MIT
|
||||
*
|
||||
* High-level API for ttn-esp32.
|
||||
* High-level C++ API for ttn-esp32.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "freertos/FreeRTOS.h"
|
||||
#include "esp_event.h"
|
||||
#include "esp_log.h"
|
||||
#include "hal/hal_esp32.h"
|
||||
#include "lmic/lmic.h"
|
||||
#include "TheThingsNetwork.h"
|
||||
#include "ttn_provisioning.h"
|
||||
#include "ttn_logging.h"
|
||||
|
||||
|
||||
/**
|
||||
* @brief Reason the user code is waiting
|
||||
*/
|
||||
enum TTNWaitingReason
|
||||
{
|
||||
eWaitingNone,
|
||||
eWaitingForJoin,
|
||||
eWaitingForTransmission
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Event type
|
||||
*/
|
||||
enum TTNEvent {
|
||||
eEvtNone,
|
||||
eEvtJoinCompleted,
|
||||
eEvtJoinFailed,
|
||||
eEvtMessageReceived,
|
||||
eEvtTransmissionCompleted,
|
||||
eEvtTransmissionFailed
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Event message sent from LMIC task to waiting client task
|
||||
*/
|
||||
struct TTNLmicEvent {
|
||||
TTNLmicEvent(TTNEvent ev = eEvtNone): event(ev) { }
|
||||
|
||||
TTNEvent event;
|
||||
uint8_t port;
|
||||
const uint8_t* message;
|
||||
size_t messageSize;
|
||||
};
|
||||
|
||||
static const char *TAG = "ttn";
|
||||
|
||||
static TheThingsNetwork* ttnInstance;
|
||||
static QueueHandle_t lmicEventQueue = nullptr;
|
||||
static TTNWaitingReason waitingReason = eWaitingNone;
|
||||
static TTNRFSettings lastRfSettings[4];
|
||||
static TTNRxTxWindow currentWindow;
|
||||
|
||||
static void eventCallback(void* userData, ev_t event);
|
||||
static void messageReceivedCallback(void *userData, uint8_t port, const uint8_t *message, size_t messageSize);
|
||||
static void messageTransmittedCallback(void *userData, int success);
|
||||
static void saveRFSettings(TTNRFSettings& rfSettings);
|
||||
static void clearRFSettings(TTNRFSettings& rfSettings);
|
||||
|
||||
|
||||
TheThingsNetwork::TheThingsNetwork()
|
||||
: messageCallback(nullptr)
|
||||
{
|
||||
#if defined(TTN_IS_DISABLED)
|
||||
ESP_LOGE(TAG, "TTN is disabled. Configure a frequency plan using 'make menuconfig'");
|
||||
ASSERT(0);
|
||||
#endif
|
||||
|
||||
ASSERT(ttnInstance == nullptr);
|
||||
ttnInstance = this;
|
||||
hal_esp32_init_critical_section();
|
||||
}
|
||||
|
||||
TheThingsNetwork::~TheThingsNetwork()
|
||||
{
|
||||
// nothing to do
|
||||
}
|
||||
|
||||
void TheThingsNetwork::configurePins(spi_host_device_t spi_host, uint8_t nss, uint8_t rxtx, uint8_t rst, uint8_t dio0, uint8_t dio1)
|
||||
{
|
||||
hal_esp32_configure_pins(spi_host, nss, rxtx, rst, dio0, dio1);
|
||||
|
||||
#if LMIC_ENABLE_event_logging
|
||||
ttn_log_init();
|
||||
#endif
|
||||
|
||||
LMIC_registerEventCb(eventCallback, nullptr);
|
||||
LMIC_registerRxMessageCb(messageReceivedCallback, nullptr);
|
||||
|
||||
os_init_ex(nullptr);
|
||||
reset();
|
||||
|
||||
lmicEventQueue = xQueueCreate(4, sizeof(TTNLmicEvent));
|
||||
ASSERT(lmicEventQueue != nullptr);
|
||||
hal_esp32_start_lmic_task();
|
||||
}
|
||||
|
||||
void TheThingsNetwork::reset()
|
||||
{
|
||||
hal_esp32_enter_critical_section();
|
||||
LMIC_reset();
|
||||
LMIC_setClockError(MAX_CLOCK_ERROR * 4 / 100);
|
||||
waitingReason = eWaitingNone;
|
||||
hal_esp32_leave_critical_section();
|
||||
}
|
||||
|
||||
void TheThingsNetwork::shutdown()
|
||||
{
|
||||
hal_esp32_enter_critical_section();
|
||||
LMIC_shutdown();
|
||||
hal_esp32_stop_lmic_task();
|
||||
waitingReason = eWaitingNone;
|
||||
hal_esp32_leave_critical_section();
|
||||
}
|
||||
|
||||
void TheThingsNetwork::startup()
|
||||
{
|
||||
hal_esp32_enter_critical_section();
|
||||
LMIC_reset();
|
||||
hal_esp32_start_lmic_task();
|
||||
hal_esp32_leave_critical_section();
|
||||
}
|
||||
|
||||
bool TheThingsNetwork::provision(const char *devEui, const char *appEui, const char *appKey)
|
||||
{
|
||||
if (!ttn_provisioning_decode_keys(devEui, appEui, appKey))
|
||||
return false;
|
||||
|
||||
return ttn_provisioning_save_keys();
|
||||
}
|
||||
|
||||
bool TheThingsNetwork::provisionWithMAC(const char *appEui, const char *appKey)
|
||||
{
|
||||
if (!ttn_provisioning_from_mac(appEui, appKey))
|
||||
return false;
|
||||
|
||||
return ttn_provisioning_save_keys();
|
||||
}
|
||||
|
||||
|
||||
void TheThingsNetwork::startProvisioningTask()
|
||||
{
|
||||
#if defined(TTN_HAS_AT_COMMANDS)
|
||||
ttn_provisioning_start_task();
|
||||
#else
|
||||
ESP_LOGE(TAG, "AT commands are disabled. Change the configuration using 'make menuconfig'");
|
||||
ASSERT(0);
|
||||
esp_restart();
|
||||
#endif
|
||||
}
|
||||
|
||||
void TheThingsNetwork::waitForProvisioning()
|
||||
{
|
||||
#if defined(TTN_HAS_AT_COMMANDS)
|
||||
if (isProvisioned())
|
||||
{
|
||||
ESP_LOGI(TAG, "Device is already provisioned");
|
||||
return;
|
||||
}
|
||||
|
||||
while (!ttn_provisioning_have_keys())
|
||||
vTaskDelay(pdMS_TO_TICKS(1000));
|
||||
|
||||
ESP_LOGI(TAG, "Device successfully provisioned");
|
||||
#else
|
||||
ESP_LOGE(TAG, "AT commands are disabled. Change the configuration using 'make menuconfig'");
|
||||
ASSERT(0);
|
||||
esp_restart();
|
||||
#endif
|
||||
}
|
||||
|
||||
bool TheThingsNetwork::join(const char *devEui, const char *appEui, const char *appKey)
|
||||
{
|
||||
if (!ttn_provisioning_decode_keys(devEui, appEui, appKey))
|
||||
return false;
|
||||
|
||||
return joinCore();
|
||||
}
|
||||
|
||||
bool TheThingsNetwork::join()
|
||||
{
|
||||
if (!ttn_provisioning_have_keys())
|
||||
{
|
||||
if (!ttn_provisioning_restore_keys(false))
|
||||
return false;
|
||||
}
|
||||
|
||||
return joinCore();
|
||||
}
|
||||
|
||||
bool TheThingsNetwork::joinCore()
|
||||
{
|
||||
if (!ttn_provisioning_have_keys())
|
||||
{
|
||||
ESP_LOGW(TAG, "Device EUI, App EUI and/or App key have not been provided");
|
||||
return false;
|
||||
}
|
||||
|
||||
hal_esp32_enter_critical_section();
|
||||
xQueueReset(lmicEventQueue);
|
||||
waitingReason = eWaitingForJoin;
|
||||
LMIC_startJoining();
|
||||
hal_esp32_wake_up();
|
||||
hal_esp32_leave_critical_section();
|
||||
|
||||
TTNLmicEvent event;
|
||||
xQueueReceive(lmicEventQueue, &event, portMAX_DELAY);
|
||||
return event.event == eEvtJoinCompleted;
|
||||
}
|
||||
|
||||
TTNResponseCode TheThingsNetwork::transmitMessage(const uint8_t *payload, size_t length, port_t port, bool confirm)
|
||||
{
|
||||
hal_esp32_enter_critical_section();
|
||||
if (waitingReason != eWaitingNone || (LMIC.opmode & OP_TXRXPEND) != 0)
|
||||
{
|
||||
hal_esp32_leave_critical_section();
|
||||
return kTTNErrorTransmissionFailed;
|
||||
}
|
||||
|
||||
waitingReason = eWaitingForTransmission;
|
||||
LMIC.client.txMessageCb = messageTransmittedCallback;
|
||||
LMIC.client.txMessageUserData = nullptr;
|
||||
LMIC_setTxData2(port, (xref2u1_t)payload, length, confirm);
|
||||
hal_esp32_wake_up();
|
||||
hal_esp32_leave_critical_section();
|
||||
|
||||
while (true)
|
||||
{
|
||||
TTNLmicEvent result;
|
||||
xQueueReceive(lmicEventQueue, &result, portMAX_DELAY);
|
||||
|
||||
switch (result.event)
|
||||
{
|
||||
case eEvtMessageReceived:
|
||||
if (messageCallback != nullptr)
|
||||
messageCallback(result.message, result.messageSize, result.port);
|
||||
break;
|
||||
|
||||
case eEvtTransmissionCompleted:
|
||||
return kTTNSuccessfulTransmission;
|
||||
|
||||
case eEvtTransmissionFailed:
|
||||
return kTTNErrorTransmissionFailed;
|
||||
|
||||
default:
|
||||
ASSERT(0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void TheThingsNetwork::onMessage(TTNMessageCallback callback)
|
||||
{
|
||||
messageCallback = callback;
|
||||
}
|
||||
|
||||
|
||||
bool TheThingsNetwork::isProvisioned()
|
||||
{
|
||||
if (ttn_provisioning_have_keys())
|
||||
return true;
|
||||
|
||||
ttn_provisioning_restore_keys(true);
|
||||
|
||||
return ttn_provisioning_have_keys();
|
||||
}
|
||||
|
||||
void TheThingsNetwork::setRSSICal(int8_t rssiCal)
|
||||
{
|
||||
hal_esp32_set_rssi_cal(rssiCal);
|
||||
}
|
||||
|
||||
bool TheThingsNetwork::adrEnabled()
|
||||
{
|
||||
return LMIC.adrEnabled != 0;
|
||||
}
|
||||
|
||||
void TheThingsNetwork::setAdrEnabled(bool enabled)
|
||||
{
|
||||
LMIC_setAdrMode(enabled);
|
||||
}
|
||||
|
||||
TTNRFSettings TheThingsNetwork::getRFSettings(TTNRxTxWindow window)
|
||||
{
|
||||
int index = static_cast<int>(window) & 0x03;
|
||||
return lastRfSettings[index];
|
||||
}
|
||||
|
||||
TTNRFSettings TheThingsNetwork::txSettings()
|
||||
{
|
||||
return lastRfSettings[static_cast<int>(kTTNTxWindow)];
|
||||
}
|
||||
|
||||
TTNRFSettings TheThingsNetwork::rx1Settings()
|
||||
{
|
||||
return lastRfSettings[static_cast<int>(kTTNRx1Window)];
|
||||
}
|
||||
|
||||
TTNRFSettings TheThingsNetwork::rx2Settings()
|
||||
{
|
||||
return lastRfSettings[static_cast<int>(kTTNRx2Window)];
|
||||
}
|
||||
|
||||
TTNRxTxWindow TheThingsNetwork::rxTxWindow()
|
||||
{
|
||||
return currentWindow;
|
||||
}
|
||||
|
||||
int TheThingsNetwork::rssi()
|
||||
{
|
||||
return LMIC.rssi;
|
||||
}
|
||||
|
||||
|
||||
// --- Callbacks ---
|
||||
|
||||
#if CONFIG_LOG_DEFAULT_LEVEL >= 3 || LMIC_ENABLE_event_logging
|
||||
const char *eventNames[] = { LMIC_EVENT_NAME_TABLE__INIT };
|
||||
#endif
|
||||
|
||||
|
||||
// Called by LMIC when an LMIC event (join, join failed, reset etc.) occurs
|
||||
void eventCallback(void* userData, ev_t event)
|
||||
{
|
||||
// update monitoring information
|
||||
switch(event)
|
||||
{
|
||||
case EV_TXSTART:
|
||||
currentWindow = kTTNTxWindow;
|
||||
saveRFSettings(lastRfSettings[static_cast<int>(kTTNTxWindow)]);
|
||||
clearRFSettings(lastRfSettings[static_cast<int>(kTTNRx1Window)]);
|
||||
clearRFSettings(lastRfSettings[static_cast<int>(kTTNRx2Window)]);
|
||||
break;
|
||||
|
||||
case EV_RXSTART:
|
||||
if (currentWindow != kTTNRx1Window)
|
||||
{
|
||||
currentWindow = kTTNRx1Window;
|
||||
saveRFSettings(lastRfSettings[static_cast<int>(kTTNRx1Window)]);
|
||||
}
|
||||
else
|
||||
{
|
||||
currentWindow = kTTNRx2Window;
|
||||
saveRFSettings(lastRfSettings[static_cast<int>(kTTNRx2Window)]);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
currentWindow = kTTNIdleWindow;
|
||||
break;
|
||||
};
|
||||
|
||||
#if LMIC_ENABLE_event_logging
|
||||
ttn_log_event(event, eventNames[event], 0);
|
||||
#elif CONFIG_LOG_DEFAULT_LEVEL >= 3
|
||||
ESP_LOGI(TAG, "event %s", eventNames[event]);
|
||||
#endif
|
||||
|
||||
TTNEvent ttnEvent = eEvtNone;
|
||||
|
||||
if (waitingReason == eWaitingForJoin)
|
||||
{
|
||||
if (event == EV_JOINED)
|
||||
{
|
||||
ttnEvent = eEvtJoinCompleted;
|
||||
}
|
||||
else if (event == EV_REJOIN_FAILED || event == EV_RESET)
|
||||
{
|
||||
ttnEvent = eEvtJoinFailed;
|
||||
}
|
||||
}
|
||||
|
||||
if (ttnEvent == eEvtNone)
|
||||
return;
|
||||
|
||||
TTNLmicEvent result(ttnEvent);
|
||||
waitingReason = eWaitingNone;
|
||||
xQueueSend(lmicEventQueue, &result, pdMS_TO_TICKS(100));
|
||||
}
|
||||
|
||||
// Called by LMIC when a message has been received
|
||||
void messageReceivedCallback(void *userData, uint8_t port, const uint8_t *message, size_t nMessage)
|
||||
{
|
||||
TTNLmicEvent result(eEvtMessageReceived);
|
||||
result.port = port;
|
||||
result.message = message;
|
||||
result.messageSize = nMessage;
|
||||
xQueueSend(lmicEventQueue, &result, pdMS_TO_TICKS(100));
|
||||
}
|
||||
|
||||
// Called by LMIC when a message has been transmitted (or the transmission failed)
|
||||
void messageTransmittedCallback(void *userData, int success)
|
||||
{
|
||||
waitingReason = eWaitingNone;
|
||||
TTNLmicEvent result(success ? eEvtTransmissionCompleted : eEvtTransmissionFailed);
|
||||
xQueueSend(lmicEventQueue, &result, pdMS_TO_TICKS(100));
|
||||
}
|
||||
|
||||
|
||||
// --- Helpers
|
||||
|
||||
|
||||
void saveRFSettings(TTNRFSettings& rfSettings)
|
||||
{
|
||||
rfSettings.spreadingFactor = static_cast<TTNSpreadingFactor>(getSf(LMIC.rps) + 1);
|
||||
rfSettings.bandwidth = static_cast<TTNBandwidth>(getBw(LMIC.rps) + 1);
|
||||
rfSettings.frequency = LMIC.freq;
|
||||
}
|
||||
|
||||
void clearRFSettings(TTNRFSettings& rfSettings)
|
||||
{
|
||||
memset(&rfSettings, 0, sizeof(rfSettings));
|
||||
ttn_rf_settings_t settings = ttn_get_rf_settings(static_cast<ttn_rx_tx_window_t>(window));
|
||||
TTNRFSettings result;
|
||||
result.spreadingFactor = static_cast<TTNSpreadingFactor>(settings.spreading_factor);
|
||||
result.bandwidth = static_cast<TTNBandwidth>(settings.bandwidth);
|
||||
result.frequency = settings.frequency;
|
||||
return result;
|
||||
}
|
||||
|
||||
422
src/ttn.c
Normal file
422
src/ttn.c
Normal file
@ -0,0 +1,422 @@
|
||||
/*******************************************************************************
|
||||
*
|
||||
* ttn-esp32 - The Things Network device library for ESP-IDF / SX127x
|
||||
*
|
||||
* Copyright (c) 2018-2021 Manuel Bleichenbacher
|
||||
*
|
||||
* Licensed under MIT License
|
||||
* https://opensource.org/licenses/MIT
|
||||
*
|
||||
* High-level C API for ttn-esp32.
|
||||
*******************************************************************************/
|
||||
|
||||
#include "lmic/lmic.h"
|
||||
#include "ttn.h"
|
||||
#include "ttn_provisioning.h"
|
||||
#include "ttn_logging.h"
|
||||
#include "hal/hal_esp32.h"
|
||||
#include "freertos/FreeRTOS.h"
|
||||
#include "esp_event.h"
|
||||
#include "esp_log.h"
|
||||
|
||||
|
||||
#define TAG "ttn"
|
||||
|
||||
|
||||
/**
|
||||
* @brief Reason the user code is waiting
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
TTN_WAITING_NONE,
|
||||
TTN_WAITING_FOR_JOIN,
|
||||
TTN_WAITING_FOR_TRANSMISSION
|
||||
} ttn_waiting_reason_t;
|
||||
|
||||
/**
|
||||
* @brief Event type
|
||||
*/
|
||||
typedef enum {
|
||||
TTN_EVENT_NONE,
|
||||
TTN_EVNT_JOIN_COMPLETED,
|
||||
TTN_EVENT_JOIN_FAILED,
|
||||
TTN_EVENT_MESSAGE_RECEIVED,
|
||||
TTN_EVENT_TRANSMISSION_COMPLETED,
|
||||
TTN_EVENT_TRANSMISSION_FAILED
|
||||
} ttn_event_t;
|
||||
|
||||
/**
|
||||
* @brief Event message sent from LMIC task to waiting client task
|
||||
*/
|
||||
typedef struct {
|
||||
ttn_event_t event;
|
||||
uint8_t port;
|
||||
const uint8_t* message;
|
||||
size_t message_size;
|
||||
} ttn_lmic_event_t;
|
||||
|
||||
static QueueHandle_t lmic_event_queue;
|
||||
static ttn_message_cb message_callback;
|
||||
static ttn_waiting_reason_t waiting_reason = TTN_WAITING_NONE;
|
||||
static ttn_rf_settings_t last_rf_settings[4];
|
||||
static ttn_rx_tx_window_t current_rx_tx_window;
|
||||
|
||||
static bool join_core(void);
|
||||
static void event_callback(void* user_data, ev_t event);
|
||||
static void message_received_callback(void *user_data, uint8_t port, const uint8_t *message, size_t message_size);
|
||||
static void message_transmitted_callback(void *user_data, int success);
|
||||
static void save_rf_settings(ttn_rf_settings_t* rf_settings);
|
||||
static void clear_rf_settings(ttn_rf_settings_t* rf_settings);
|
||||
|
||||
|
||||
void ttn_init(void)
|
||||
{
|
||||
#if defined(TTN_IS_DISABLED)
|
||||
ESP_LOGE(TAG, "TTN is disabled. Configure a frequency plan using 'make menuconfig'");
|
||||
ASSERT(0);
|
||||
#endif
|
||||
|
||||
message_callback = NULL;
|
||||
hal_esp32_init_critical_section();
|
||||
}
|
||||
|
||||
void ttn_configure_pins(spi_host_device_t spi_host, uint8_t nss, uint8_t rxtx, uint8_t rst, uint8_t dio0, uint8_t dio1)
|
||||
{
|
||||
hal_esp32_configure_pins(spi_host, nss, rxtx, rst, dio0, dio1);
|
||||
|
||||
#if LMIC_ENABLE_event_logging
|
||||
ttn_log_init();
|
||||
#endif
|
||||
|
||||
LMIC_registerEventCb(event_callback, NULL);
|
||||
LMIC_registerRxMessageCb(message_received_callback, NULL);
|
||||
|
||||
os_init_ex(NULL);
|
||||
ttn_reset();
|
||||
|
||||
lmic_event_queue = xQueueCreate(4, sizeof(ttn_lmic_event_t));
|
||||
ASSERT(lmic_event_queue != NULL);
|
||||
hal_esp32_start_lmic_task();
|
||||
}
|
||||
|
||||
void ttn_reset(void)
|
||||
{
|
||||
hal_esp32_enter_critical_section();
|
||||
LMIC_reset();
|
||||
LMIC_setClockError(MAX_CLOCK_ERROR * 4 / 100);
|
||||
waiting_reason = TTN_WAITING_NONE;
|
||||
hal_esp32_leave_critical_section();
|
||||
}
|
||||
|
||||
void ttn_shutdown(void)
|
||||
{
|
||||
hal_esp32_enter_critical_section();
|
||||
LMIC_shutdown();
|
||||
hal_esp32_stop_lmic_task();
|
||||
waiting_reason = TTN_WAITING_NONE;
|
||||
hal_esp32_leave_critical_section();
|
||||
}
|
||||
|
||||
void ttn_startup(void)
|
||||
{
|
||||
hal_esp32_enter_critical_section();
|
||||
LMIC_reset();
|
||||
hal_esp32_start_lmic_task();
|
||||
hal_esp32_leave_critical_section();
|
||||
}
|
||||
|
||||
bool ttn_provision(const char *dev_eui, const char *app_eui, const char *app_key)
|
||||
{
|
||||
if (!ttn_provisioning_decode_keys(dev_eui, app_eui, app_key))
|
||||
return false;
|
||||
|
||||
return ttn_provisioning_save_keys();
|
||||
}
|
||||
|
||||
bool ttn_provision_with_mac(const char *app_eui, const char *app_key)
|
||||
{
|
||||
if (!ttn_provisioning_from_mac(app_eui, app_key))
|
||||
return false;
|
||||
|
||||
return ttn_provisioning_save_keys();
|
||||
}
|
||||
|
||||
|
||||
void ttn_start_provisioning_task(void)
|
||||
{
|
||||
#if defined(TTN_HAS_AT_COMMANDS)
|
||||
ttn_provisioning_start_task();
|
||||
#else
|
||||
ESP_LOGE(TAG, "AT commands are disabled. Change the configuration using 'make menuconfig'");
|
||||
ASSERT(0);
|
||||
esp_restart();
|
||||
#endif
|
||||
}
|
||||
|
||||
void ttn_wait_for_provisioning(void)
|
||||
{
|
||||
#if defined(TTN_HAS_AT_COMMANDS)
|
||||
if (ttn_is_provisioned())
|
||||
{
|
||||
ESP_LOGI(TAG, "Device is already provisioned");
|
||||
return;
|
||||
}
|
||||
|
||||
while (!ttn_provisioning_have_keys())
|
||||
vTaskDelay(pdMS_TO_TICKS(1000));
|
||||
|
||||
ESP_LOGI(TAG, "Device successfully provisioned");
|
||||
#else
|
||||
ESP_LOGE(TAG, "AT commands are disabled. Change the configuration using 'make menuconfig'");
|
||||
ASSERT(0);
|
||||
esp_restart();
|
||||
#endif
|
||||
}
|
||||
|
||||
bool ttn_join(const char *dev_eui, const char *app_eui, const char *app_key)
|
||||
{
|
||||
if (!ttn_provisioning_decode_keys(dev_eui, app_eui, app_key))
|
||||
return false;
|
||||
|
||||
return join_core();
|
||||
}
|
||||
|
||||
bool ttn_join_provisioned(void)
|
||||
{
|
||||
if (!ttn_provisioning_have_keys())
|
||||
{
|
||||
if (!ttn_provisioning_restore_keys(false))
|
||||
return false;
|
||||
}
|
||||
|
||||
return join_core();
|
||||
}
|
||||
|
||||
bool join_core()
|
||||
{
|
||||
if (!ttn_provisioning_have_keys())
|
||||
{
|
||||
ESP_LOGW(TAG, "Device EUI, App EUI and/or App key have not been provided");
|
||||
return false;
|
||||
}
|
||||
|
||||
hal_esp32_enter_critical_section();
|
||||
xQueueReset(lmic_event_queue);
|
||||
waiting_reason = TTN_WAITING_FOR_JOIN;
|
||||
LMIC_startJoining();
|
||||
hal_esp32_wake_up();
|
||||
hal_esp32_leave_critical_section();
|
||||
|
||||
ttn_lmic_event_t event;
|
||||
xQueueReceive(lmic_event_queue, &event, portMAX_DELAY);
|
||||
return event.event == TTN_EVNT_JOIN_COMPLETED;
|
||||
}
|
||||
|
||||
ttn_response_code_t ttn_transmit_message(const uint8_t *payload, size_t length, ttn_port_t port, bool confirm)
|
||||
{
|
||||
hal_esp32_enter_critical_section();
|
||||
if (waiting_reason != TTN_WAITING_NONE || (LMIC.opmode & OP_TXRXPEND) != 0)
|
||||
{
|
||||
hal_esp32_leave_critical_section();
|
||||
return TTN_ERROR_TRANSMISSION_FAILED;
|
||||
}
|
||||
|
||||
waiting_reason = TTN_WAITING_FOR_TRANSMISSION;
|
||||
LMIC.client.txMessageCb = message_transmitted_callback;
|
||||
LMIC.client.txMessageUserData = NULL;
|
||||
LMIC_setTxData2(port, (xref2u1_t)payload, length, confirm);
|
||||
hal_esp32_wake_up();
|
||||
hal_esp32_leave_critical_section();
|
||||
|
||||
while (true)
|
||||
{
|
||||
ttn_lmic_event_t result;
|
||||
xQueueReceive(lmic_event_queue, &result, portMAX_DELAY);
|
||||
|
||||
switch (result.event)
|
||||
{
|
||||
case TTN_EVENT_MESSAGE_RECEIVED:
|
||||
if (message_callback != NULL)
|
||||
message_callback(result.message, result.message_size, result.port);
|
||||
break;
|
||||
|
||||
case TTN_EVENT_TRANSMISSION_COMPLETED:
|
||||
return TTN_SUCCESSFUL_TRANSMISSION;
|
||||
|
||||
case TTN_EVENT_TRANSMISSION_FAILED:
|
||||
return TTN_ERROR_TRANSMISSION_FAILED;
|
||||
|
||||
default:
|
||||
ASSERT(0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void ttn_on_message(ttn_message_cb callback)
|
||||
{
|
||||
message_callback = callback;
|
||||
}
|
||||
|
||||
|
||||
bool ttn_is_provisioned(void)
|
||||
{
|
||||
if (ttn_provisioning_have_keys())
|
||||
return true;
|
||||
|
||||
ttn_provisioning_restore_keys(true);
|
||||
|
||||
return ttn_provisioning_have_keys();
|
||||
}
|
||||
|
||||
void ttn_set_rssi_cal(int8_t rssi_cal)
|
||||
{
|
||||
hal_esp32_set_rssi_cal(rssi_cal);
|
||||
}
|
||||
|
||||
bool ttn_adr_enabled(void)
|
||||
{
|
||||
return LMIC.adrEnabled != 0;
|
||||
}
|
||||
|
||||
void ttn_set_adr_nabled(bool enabled)
|
||||
{
|
||||
LMIC_setAdrMode(enabled);
|
||||
}
|
||||
|
||||
ttn_rf_settings_t ttn_getrf_settings(ttn_rx_tx_window_t window)
|
||||
{
|
||||
int index = ((int)window) & 0x03;
|
||||
return last_rf_settings[index];
|
||||
}
|
||||
|
||||
ttn_rf_settings_t ttn_tx_settings(void)
|
||||
{
|
||||
return last_rf_settings[TTN_WINDOW_TX];
|
||||
}
|
||||
|
||||
ttn_rf_settings_t ttn_rx1_settings(void)
|
||||
{
|
||||
return last_rf_settings[TTN_WINDOW_RX1];
|
||||
}
|
||||
|
||||
ttn_rf_settings_t ttn_rx2_settings(void)
|
||||
{
|
||||
return last_rf_settings[TTN_WINDOW_RX2];
|
||||
}
|
||||
|
||||
ttn_rx_tx_window_t ttn_rx_tx_window(void)
|
||||
{
|
||||
return current_rx_tx_window;
|
||||
}
|
||||
|
||||
int ttn_rssi(void)
|
||||
{
|
||||
return LMIC.rssi;
|
||||
}
|
||||
|
||||
|
||||
// --- Callbacks ---
|
||||
|
||||
#if CONFIG_LOG_DEFAULT_LEVEL >= 3 || LMIC_ENABLE_event_logging
|
||||
static const char *event_names[] = { LMIC_EVENT_NAME_TABLE__INIT };
|
||||
#endif
|
||||
|
||||
|
||||
// Called by LMIC when an LMIC event (join, join failed, reset etc.) occurs
|
||||
void event_callback(void* user_data, ev_t event)
|
||||
{
|
||||
// update monitoring information
|
||||
switch(event)
|
||||
{
|
||||
case EV_TXSTART:
|
||||
current_rx_tx_window = TTN_WINDOW_TX;
|
||||
save_rf_settings(&last_rf_settings[TTN_WINDOW_TX]);
|
||||
clear_rf_settings(&last_rf_settings[TTN_WINDOW_RX1]);
|
||||
clear_rf_settings(&last_rf_settings[TTN_WINDOW_RX2]);
|
||||
break;
|
||||
|
||||
case EV_RXSTART:
|
||||
if (current_rx_tx_window != TTN_WINDOW_RX1)
|
||||
{
|
||||
current_rx_tx_window = TTN_WINDOW_RX1;
|
||||
save_rf_settings(&last_rf_settings[TTN_WINDOW_RX1]);
|
||||
}
|
||||
else
|
||||
{
|
||||
current_rx_tx_window = TTN_WINDOW_RX2;
|
||||
save_rf_settings(&last_rf_settings[TTN_WINDOW_RX2]);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
current_rx_tx_window = TTN_WINDOW_IDLE;
|
||||
break;
|
||||
};
|
||||
|
||||
#if LMIC_ENABLE_event_logging
|
||||
ttn_log_event(event, event_names[event], 0);
|
||||
#elif CONFIG_LOG_DEFAULT_LEVEL >= 3
|
||||
ESP_LOGI(TAG, "event %s", event_names[event]);
|
||||
#endif
|
||||
|
||||
ttn_event_t ttn_event = TTN_EVENT_NONE;
|
||||
|
||||
if (waiting_reason == TTN_WAITING_FOR_JOIN)
|
||||
{
|
||||
if (event == EV_JOINED)
|
||||
{
|
||||
ttn_event = TTN_EVNT_JOIN_COMPLETED;
|
||||
}
|
||||
else if (event == EV_REJOIN_FAILED || event == EV_RESET)
|
||||
{
|
||||
ttn_event = TTN_EVENT_JOIN_FAILED;
|
||||
}
|
||||
}
|
||||
|
||||
if (ttn_event == TTN_EVENT_NONE)
|
||||
return;
|
||||
|
||||
ttn_lmic_event_t result = {
|
||||
.event = ttn_event
|
||||
};
|
||||
waiting_reason = TTN_WAITING_NONE;
|
||||
xQueueSend(lmic_event_queue, &result, pdMS_TO_TICKS(100));
|
||||
}
|
||||
|
||||
// Called by LMIC when a message has been received
|
||||
void message_received_callback(void *user_data, uint8_t port, const uint8_t *message, size_t message_size)
|
||||
{
|
||||
ttn_lmic_event_t result = {
|
||||
.event = TTN_EVENT_MESSAGE_RECEIVED,
|
||||
.port = port,
|
||||
.message = message,
|
||||
.message_size = message_size
|
||||
};
|
||||
xQueueSend(lmic_event_queue, &result, pdMS_TO_TICKS(100));
|
||||
}
|
||||
|
||||
// Called by LMIC when a message has been transmitted (or the transmission failed)
|
||||
void message_transmitted_callback(void *user_data, int success)
|
||||
{
|
||||
waiting_reason = TTN_WAITING_NONE;
|
||||
ttn_lmic_event_t result = {
|
||||
.event = success ? TTN_EVENT_TRANSMISSION_COMPLETED : TTN_EVENT_TRANSMISSION_FAILED
|
||||
};
|
||||
xQueueSend(lmic_event_queue, &result, pdMS_TO_TICKS(100));
|
||||
}
|
||||
|
||||
|
||||
// --- Helpers
|
||||
|
||||
|
||||
void save_rf_settings(ttn_rf_settings_t* rf_settings)
|
||||
{
|
||||
rf_settings->spreading_factor = (ttn_spreading_factor_t)(getSf(LMIC.rps) + 1);
|
||||
rf_settings->bandwidth = (ttn_bandwidth_t)(getBw(LMIC.rps) + 1);
|
||||
rf_settings->frequency = LMIC.freq;
|
||||
}
|
||||
|
||||
void clear_rf_settings(ttn_rf_settings_t* rf_settings)
|
||||
{
|
||||
memset(rf_settings, 0, sizeof(*rf_settings));
|
||||
}
|
||||
Reference in New Issue
Block a user