Files
LoRaWAN-Modbus-Gateway/sketch/configuration.cpp

219 lines
6.1 KiB
C++

#include "configuration.h"
#include "defines.h"
#include "LoRaWan_APP.h"
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <Wire.h>
#include "HT_SSD1306Wire.h"
#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <WiFiAP.h>
#include <sstream>
#include <string>
#include <iomanip>
const uint32_t MAGIC = 0xaffe0001;
config_t myConfig = {
.magic = MAGIC,
.appEui = { 0xa0, 0x57, 0x81, 0x00, 0x01, 0x12, 0xaa, 0xf3 },
.appKey = { 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88 },
.modbus_poll_slots = {
{ .typ = INPUT_REGISTERS, .id = 7, .address = 0x01 },
{ .typ = INPUT_REGISTERS, .id = 7, .address = 0x02 },
{ .typ = UNASSIGNED, .id = 0, .address = 0 },
}
};
uint8_t devEui[8];
uint8_t appEui[8];
uint8_t appKey[16];
uint8_t nwkSKey[16];
uint8_t appSKey[16];
uint32_t devAddr;
LoRaMacRegion_t loraWanRegion;
bool overTheAirActivation;
SSD1306Wire confDisplay(0x3c, 500000, SDA_OLED, SCL_OLED, GEOMETRY_128_64, RST_OLED);; // addr , freq , i2c group , resolution , rst
WebServer server(80);
const char *ssid = "ModbusLoraConf";
#define TEST_PASSWORD
#ifndef TEST_PASSWORD
char password[12];
#else
const char *password = "test1234";
#endif
extern uint8_t devEui[8];
bool configSaved = false;
int configParsingFailed = 0;
enum { PARSING_OK, PARSING_INVALID, PARSING_TOO_MANY, PARSING_TOO_FEW } configParsingError;
static void displayStatus(uint8_t numOfStations) {
confDisplay.clear();
confDisplay.display();
confDisplay.drawString(1, 0, "Config Mode running");
char buf[64];
memset(buf, 0, sizeof(buf));
sprintf(buf, "SSID: %s", ssid);
confDisplay.drawString(1, 12, buf);
memset(buf, 0, sizeof(buf));
sprintf(buf, "Key: %s", password);
confDisplay.drawString(1, 24, buf);
confDisplay.display();
memset(buf, 0, sizeof(buf));
sprintf(buf, "Num of stations: %d", numOfStations);
confDisplay.drawString(1, 36, buf);
confDisplay.display();
}
static void displayInit() {
digitalWrite(Vext,LOW);
confDisplay.init();
confDisplay.setFont(ArialMT_Plain_10);
confDisplay.setTextAlignment(TEXT_ALIGN_LEFT);
confDisplay.screenRotate(ANGLE_180_DEGREE);
confDisplay.clear();
confDisplay.drawString(1, 0, "Config Mode starting");
confDisplay.display();
}
static void handleRoot() {
// bool configValid = (configBlock.magic == MAGIC);
std::stringstream buffer;
buffer << "<!doctype html"
"<html lang=\"en\">"
" <head>"
" <title>Modbus LoRaWAN Gateway</title>"
" </head>"
" <body>"
" <h1>Modbus LoRaWAN Gateway - Configuration Page</h1>";
if (configSaved) {
configSaved = false;
buffer << "<h2>Configuration saved</h2>";
}
if (configParsingFailed) {
configParsingFailed = 0;
buffer << "<h2>Error when parsing field " << configParsingFailed << ", error " << configParsingError << "</h2>";
}
buffer << " <form action=\"config\" method=\"POST\">"
" <table>"
" <tr>"
" <td>";
buffer << " <textarea name=\"config\" cols=\"50\" rows=\"40\">";
buffer << "# Configuration of the Modbus LoRaWAN Gateway";
buffer << " </textarea";
buffer << " </td><td valign=\"top\">"
" Edit the textarea beside. <br/>"
" Make sure to keep all parameters within and follow the shown format.<br/>"
" You can use the # char to introduce line-based comments.<br/>"
" </td>"
" </tr>"
" <tr><td colspan=\"2\">"
" <button type=\"submit\">Save</button>"
" </td></tr>"
" </table>"
" </form>"
" </body"
"</html";
server.send(200, "text/html", buffer.str().c_str());
}
static void parseField(char* arg, int fieldNum, int reqTokens, uint8_t *dest) {
int i = 0;
for (char *part = strtok(arg, ":"); part; part = strtok(NULL, ":")) {
Serial.println(part);
char *errPtr;
long v = strtol(part, &errPtr, 16);
if (errPtr && *errPtr) {
Serial.printf("some error happened, %p %02x\n\r", errPtr, *errPtr);
configParsingFailed = fieldNum;
configParsingError = PARSING_INVALID;
break;
}
if (i >= reqTokens) {
Serial.println("too many tokens");
configParsingFailed = fieldNum;
configParsingError = PARSING_TOO_MANY;
break;
}
dest[i] = v;
i++;
}
if ((i != reqTokens) && (configParsingFailed == 0)) {
Serial.println("too few tokens");
configParsingFailed = fieldNum;
configParsingError = PARSING_TOO_FEW;
}
}
static void handleConfigSave() {
char *configText = (char*)server.arg("config").c_str();
Serial.println(configText);
configSaved = true;
server.sendHeader("Location", String("/"), true);
server.send(302, "text/plain", "");
}
void configurationSetup() {
#ifndef TEST_PASSWORD
memset(password, 0, sizeof(password));
for (int i = 0; i < sizeof(password) - 1; i++) {
password[i] = random(65, 90);
}
#endif
WiFi.softAP(ssid, password);
IPAddress myIP = WiFi.softAPIP();
displayInit();
displayStatus(0);
LoRaWAN.generateDeveuiByChipID();
server.on("/", handleRoot);
server.on("/config", handleConfigSave);
server.begin();
}
void configurationLoop() {
static uint8_t numOfStations = 255;
uint8_t currentNumOfStations = WiFi.softAPgetStationNum();
if (numOfStations != currentNumOfStations) {
displayStatus(currentNumOfStations);
numOfStations = currentNumOfStations;
}
server.handleClient();
}
void configLoad() {
memcpy(appEui, myConfig.appEui, sizeof(appEui));
memcpy(appKey, myConfig.appKey, sizeof(appKey));
loraWanRegion = LORAMAC_REGION_EU868;
overTheAirActivation = true;
}