84 wiersze
2.6 KiB
C++
84 wiersze
2.6 KiB
C++
// 1-channel LoRa Gateway for ESP8266
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// Copyright (c) 2016, 2017, 2018 Maarten Westenberg
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// Version 5.3.3
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// Date: 2018-08-25
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//
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// Based on work done by Thomas Telkamp for Raspberry PI 1ch gateway
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// and many others.
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//
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// All rights reserved. This program and the accompanying materials
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// are made available under the terms of the MIT License
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// which accompanies this distribution, and is available at
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// https://opensource.org/licenses/mit-license.php
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//
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// NO WARRANTY OF ANY KIND IS PROVIDED
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//
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// Author: Maarten Westenberg
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//
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// This file contains the functions to do management over UDP
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// We could make use of the LoRa message function for the Gateway sensor
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// itself. However the functions defined in this file are not sensor
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// functions and activating them through the LoRa interface would add
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// no value and make the code more complex.
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//
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// So advantage: Simple, and does not mess with TTN setup.
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//
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// Disadvantage of course is that you need to setup you own small backend
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// function to exchange messages with the gateway, as TTN won't do this.
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//
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// XXX But, if necessary we can always add this later.
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#if GATEWAYMGT==1
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#if !defined _THINGPORT
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#error "The management functions needs _THINGPORT defined (and not over _TTNPORT)"
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#endif
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// ----------------------------------------------------------------------------
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// Ths function gateway_mgt is called in the UDP Receive function after
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// all well-known LoRa Gateway messages are scanned.
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//
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// As part of this function we will listen for another set of messages
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// that is defined in loraModem.h.
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// All opCodes start with 0x1y for at leaving opcodes 0x00 to 0x0F to the
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// pure Gateway protocol
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//
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// Incoming mesage format:
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// buf[0]-buf[2], These are 0x00 or dont care
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// buf[3], contains opcode
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// buf[4]-buf[7], contains parameter max. 4 bytes.
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//
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// Upstream Message format:
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//
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// ----------------------------------------------------------------------------
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void gateway_mgt(uint8_t size, uint8_t *buff) {
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uint8_t opcode = buff[3];
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switch (opcode) {
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case MGT_RESET:
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Serial.println(F("gateway_mgt:: RESET"));
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// No further parameters, just reset the GWay
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setup(); // Call the sketch setup function
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// Send Ack to server
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break;
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case MGT_SET_SF:
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Serial.println(F("gateway_mgt:: SET SF"));
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// byte [4] contains desired SF code (7 for SF7 and 12 for SF12)
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break;
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case MGT_SET_FREQ:
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Serial.println(F("gateway_mgt:: SET FREQ"));
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// Byte [4] contains index of Frequency
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break;
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default:
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Serial.print(F("gateway_mgt:: Unknown UDP code="));
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Serial.println(opcode);
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return;
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break;
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}
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}
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#endif //GATEWAYMGT==1
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