/* configmanager persists runtime configuration using NVRAM of ESP32*/ #include "globals.h" #include "configmanager.h" // Local logging tag static const char TAG[] = __FILE__; #define PAYLOADMASK \ ((GPS_DATA | ALARM_DATA | MEMS_DATA | COUNT_DATA | SENSOR1_DATA | \ SENSOR2_DATA | SENSOR3_DATA) & \ (~BATT_DATA)) // namespace for device runtime preferences #define DEVCONFIG "paxcntcfg" Preferences nvram; static const size_t cfgLen = sizeof(cfg); static char buffer[cfgLen]; // populate runtime config with factory settings void defaultConfig(configData_t *myconfig) { char version[10]; snprintf(version, 10, "%-10s", PROGVERSION); // factory settings myconfig->loradr = LORADRDEFAULT; // 0-15, lora datarate, see paxcounter.conf myconfig->txpower = LORATXPOWDEFAULT; // 0-15, lora tx power myconfig->adrmode = 1; // 0=disabled, 1=enabled myconfig->screensaver = 0; // 0=disabled, 1=enabled myconfig->screenon = 1; // 0=disabled, 1=enabled myconfig->countermode = COUNTERMODE; // 0=cyclic, 1=cumulative, 2=cyclic confirmed myconfig->rssilimit = 0; // threshold for rssilimiter, negative value! myconfig->sendcycle = SENDCYCLE; // payload send cycle [seconds/2] myconfig->wifichancycle = WIFI_CHANNEL_SWITCH_INTERVAL; // wifi channel switch cycle [seconds/100] myconfig->blescantime = BLESCANINTERVAL / 10; // BT channel scan cycle [seconds/100], default 1 (= 10ms) myconfig->blescan = 1; // 0=disabled, 1=enabled myconfig->wifiscan = 1; // 0=disabled, 1=enabled myconfig->wifiant = 0; // 0=internal, 1=external (for LoPy/LoPy4) myconfig->vendorfilter = VENDORFILTER; // 0=disabled, 1=enabled myconfig->rgblum = RGBLUMINOSITY; // RGB Led luminosity (0..100%) myconfig->monitormode = 0; // 0=disabled, 1=enabled myconfig->payloadmask = PAYLOADMASK; // all payload switched on memcpy(myconfig->version, version, 10); // Firmware version [exactly 10 chars] #ifdef HAS_BME680 // initial BSEC state for BME680 sensor myconfig->bsecstate[BSEC_MAX_STATE_BLOB_SIZE] = {0}; #endif } // save current configuration from RAM to NVRAM void saveConfig(bool erase) { ESP_LOGI(TAG, "Storing settings in NVRAM"); nvram.begin(DEVCONFIG, false); if (erase) { ESP_LOGI(TAG, "Resetting NVRAM to factory settings"); nvram.clear(); defaultConfig(&cfg); } // Copy device runtime config cfg to byte array memcpy(buffer, &cfg, cfgLen); // save byte array to NVRAM nvram.putBytes(DEVCONFIG, buffer, cfgLen); nvram.end(); } // load configuration from NVRAM into RAM and make it current void loadConfig() { ESP_LOGI(TAG, "Loading runtime settings from NVS"); if (!nvram.begin(DEVCONFIG, true)) { ESP_LOGI(TAG, "Initializing NVRAM"); eraseConfig(); } else { // simple check that runtime config data matches if (nvram.getBytesLength(DEVCONFIG) != cfgLen) { ESP_LOGW(TAG, "NVRAM settings invalid"); eraseConfig(); } else { // load device runtime config from nvram and copy it to byte array nvram.getBytes(DEVCONFIG, buffer, cfgLen); nvram.end(); // copy the byte array into runtime cfg struct memcpy(&cfg, buffer, cfgLen); } } } void eraseConfig(void) { saveConfig(true); }