OTA (experimental)

README.md

@@ -278,6 +278,7 @@ Note: all settings are stored in NVRAM and will be reloaded when device starts.
 	1 = reset MAC counter to zero
 	2 = reset device to factory settings
 	3 = flush send queues
+	9 = OTA software update via Wifi
 
 0x0A set LoRaWAN payload send cycle
 

platformio.ini

@@ -11,8 +11,8 @@
 ;env_default = heltec
 ;env_default = ttgov1
 ;env_default = ttgov2
-;env_default = ttgov21
+env_default = ttgov21
-env_default = ttgobeam
+;env_default = ttgobeam
 ;env_default = lopy
 ;env_default = lopy4
 ;env_default = fipy
@@ -29,7 +29,7 @@ package = ttgov21_old
 api_token = 2e10f923df5d47b9c7e25752510322a1d65ee997
 
 [common]
-release_version = 5
+release_version = 6
 
 [ota]
 ; build configuration based on Bintray and Wi-Fi settings
@@ -62,6 +62,7 @@ build_flags =
     -D_lmic_config_h_
     -include "src/paxcounter.conf"
     -include "src/hal/${PIOENV}.h"
+    ${ota.build_flags}
     -w
 ; ---> NOTE: For production run set DEBUG_LEVEL level to NONE! <---
 ; otherwise device may leak RAM
@@ -89,7 +90,6 @@ monitor_speed = 115200
 lib_deps = 
     ${common_env_data.lib_deps_all}
 build_flags = 
-    ${ota.build_flags}
     ${common_env_data.build_flags}
 
 [env:heltec]
@@ -143,6 +143,9 @@ lib_deps =
     ${common_env_data.lib_deps_display}
 build_flags = 
     ${common_env_data.build_flags}
+;upload_protocol = custom
+;extra_scripts = pre:publish_firmware.py
+
 
 [env:ttgobeam]
 platform = ${common_env_data.platform_espressif32}
@@ -155,11 +158,10 @@ lib_deps =
     ${common_env_data.lib_deps_all}
     ${common_env_data.lib_deps_gps}
 build_flags = 
-    ${ota.build_flags}
     ${common_env_data.build_flags}
     -mfix-esp32-psram-cache-issue
-upload_protocol = custom
+;upload_protocol = custom
-extra_scripts = pre:publish_firmware.py
+;extra_scripts = pre:publish_firmware.py
 
 [env:fipy]
 platform = ${common_env_data.platform_espressif32}
@@ -200,7 +202,6 @@ lib_deps =
     ${common_env_data.lib_deps_rgbled}
     ${common_env_data.lib_deps_gps}
 build_flags =
-    ${ota.build_flags}
     ${common_env_data.build_flags}
     -mfix-esp32-psram-cache-issue
 
@@ -256,5 +257,4 @@ lib_deps =
     ${common_env_data.lib_deps_gps}
     ${common_env_data.lib_deps_display}
 build_flags =
-    ${ota.build_flags}
     ${common_env_data.build_flags}

src/OTA.cpp

@@ -36,16 +36,8 @@ volatile bool isValidContentType = false;
 static const char TAG[] = "main";
 
 void start_ota_update() {
-  ota_update = false; // clear ota trigger switch
-
-  ESP_LOGI(TAG, "Stopping Wifi scanner");
-  vTaskDelete(WifiLoopTask);
 
   ESP_LOGI(TAG, "Starting Wifi OTA update");
-  // switch off monitor more
-  ESP_ERROR_CHECK(
-      esp_wifi_set_promiscuous(false)); // now switch on monitor mode
-  ESP_ERROR_CHECK(esp_wifi_set_promiscuous_rx_cb(NULL));
 
   WiFi.begin(WIFI_SSID, WIFI_PASS);
 
@@ -56,7 +48,7 @@ void start_ota_update() {
 
   ESP_LOGI(TAG, "connected to %s", WIFI_SSID);
 
-  checkFirmwareUpdates();
+  checkFirmwareUpdates(); // gets and flashes new firmware and restarts
   ESP.restart(); // reached only if update was not successful
 
 } // start_ota_update

src/OTA.h

@@ -4,7 +4,6 @@
 #include <Arduino.h>
 #include <WiFi.h>
 #include "globals.h"
-#include "wifiscan.h"
 
 void checkFirmwareUpdates();
 void processOTAUpdate(const String &version);

src/configmanager.cpp

@@ -31,6 +31,7 @@ void defaultConfig() {
   cfg.rgblum = RGBLUMINOSITY; // RGB Led luminosity (0..100%)
   cfg.gpsmode = 1;            // 0=disabled, 1=enabled
   cfg.monitormode = 0;        // 0=disabled, 1=enabled
+  cfg.runmode = 0;            // 0=normal, 1=update
 
   strncpy(cfg.version, PROGVERSION, sizeof(cfg.version) - 1);
 }
@@ -143,6 +144,10 @@ void saveConfig() {
         flash8 != cfg.monitormode)
       nvs_set_i8(my_handle, "monitormode", cfg.monitormode);
 
+    if (nvs_get_i8(my_handle, "runmode", &flash8) != ESP_OK ||
+        flash8 != cfg.runmode)
+      nvs_set_i8(my_handle, "runmode", cfg.runmode);
+
     if (nvs_get_i16(my_handle, "rssilimit", &flash16) != ESP_OK ||
         flash16 != cfg.rssilimit)
       nvs_set_i16(my_handle, "rssilimit", cfg.rssilimit);
@@ -326,6 +331,14 @@ void loadConfig() {
       saveConfig();
     }
 
+    if (nvs_get_i8(my_handle, "runmode", &flash8) == ESP_OK) {
+      cfg.runmode = flash8;
+      ESP_LOGI(TAG, "Run mode = %d", flash8);
+    } else {
+      ESP_LOGI(TAG, "Run mode set to default %d", cfg.runmode);
+      saveConfig();
+    }
+
     nvs_close(my_handle);
     ESP_LOGI(TAG, "Done");
   }

src/cyclic.cpp

@@ -15,8 +15,9 @@ void doHomework() {
   // update uptime counter
   uptime();
 
-  if (ota_update)
+  // check if update mode trigger switch was set
-    start_ota_update();
+  if (cfg.runmode == 1)
+    ESP.restart();
 
 // read battery voltage into global variable
 #ifdef HAS_BATTERY_PROBE

src/globals.h

@@ -5,7 +5,7 @@
 #include <Arduino.h>
 
 // attn: increment version after modifications to configData_t truct!
-#define PROGVERSION "1.4.23" // use max 10 chars here!
+#define PROGVERSION "1.4.30" // use max 10 chars here!
 #define PROGNAME "PAXCNT"
 
 // std::set for unified array functions
@@ -31,6 +31,7 @@ typedef struct {
   uint8_t rgblum;        // RGB Led luminosity (0..100%)
   uint8_t gpsmode;       // 0=disabled, 1=enabled
   uint8_t monitormode;   // 0=disabled, 1=enabled
+  uint8_t runmode;       // 0=normal, 1=update
   char version[10];      // Firmware version
 } configData_t;
 
@@ -43,7 +44,6 @@ typedef struct {
 
 // global variables
 extern configData_t cfg; // current device configuration
-extern bool ota_update;
 extern char display_line6[], display_line7[]; // screen buffers
 extern uint8_t channel;                       // wifi channel rotation counter
 extern uint16_t macs_total, macs_wifi, macs_ble, batt_voltage; // display values

src/lorawan.cpp

@@ -196,11 +196,9 @@ void onEvent(ev_t ev) {
 
     if (LMIC.dataLen) {
       ESP_LOGI(TAG, "Received %d bytes of payload, RSSI %d SNR %d",
-               LMIC.dataLen, LMIC.rssi, (signed char)LMIC.snr / 4);
+               LMIC.dataLen, LMIC.rssi, (signed char)LMIC.snr);
-      // LMIC.snr = SNR twos compliment [dB] * 4
-      // LMIC.rssi = RSSI [dBm] (-196...+63)
       sprintf(display_line6, "RSSI %d SNR %d", LMIC.rssi,
-              (signed char)LMIC.snr / 4);
+              (signed char)LMIC.snr);
 
       // check if command is received on command port, then call interpreter
       if ((LMIC.txrxFlags & TXRX_PORT) &&

src/main.cpp

@@ -27,8 +27,7 @@ licenses. Refer to LICENSE.txt file in repository for more details.
 #include "globals.h"
 #include "main.h"
 
-configData_t cfg;        // struct holds current device configuration
+configData_t cfg; // struct holds current device configuration
-bool ota_update = false; // triggers OTA update
 char display_line6[16], display_line7[16]; // display buffers
 uint8_t channel = 0;                       // channel rotation counter
 uint16_t macs_total = 0, macs_wifi = 0, macs_ble = 0,
@@ -97,7 +96,7 @@ void setup() {
   // initialize system event handler for wifi task, needed for
   // wifi_sniffer_init()
   // esp_event_loop_init(NULL, NULL);
-  //ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL));
+  // ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL));
 
   // print chip information on startup if in verbose mode
 #ifdef VERBOSE
@@ -123,6 +122,13 @@ void setup() {
   // read settings from NVRAM
   loadConfig(); // includes initialize if necessary
 
+  // reboot to firmware update mode if ota trigger switch is set
+  if (cfg.runmode == 1) {
+    cfg.runmode = 0;
+    saveConfig();
+    start_ota_update();
+  }
+
 #ifdef VENDORFILTER
   strcat_P(features, " OUIFLT");
 #endif
@@ -302,8 +308,8 @@ void setup() {
   ESP_LOGI(TAG, "Starting Wifi task on core 0");
   wifi_sniffer_init();
   // initialize salt value using esp_random() called by random() in
-  // arduino-esp32 core. Note: do this *after* wifi has started, since function
+  // arduino-esp32 core. Note: do this *after* wifi has started, since
-  // gets it's seed from RF noise
+  // function gets it's seed from RF noise
   reset_salt(); // get new 16bit for salting hashes
   xTaskCreatePinnedToCore(wifi_channel_loop, "wifiloop", 2048, (void *)1, 1,
                           &WifiLoopTask, 0);
@@ -318,7 +324,8 @@ void setup() {
 void loop() {
 
   while (1) {
-    // state machine for switching display, LED, button, housekeeping, senddata
+    // state machine for switching display, LED, button, housekeeping,
+    // senddata
 
 #if (HAS_LED != NOT_A_PIN) || defined(HAS_RGB_LED)
     led_loop();

src/main.h

@@ -8,6 +8,7 @@
 #include "senddata.h"
 #include "cyclic.h"
 #include "beacon_array.h"
+#include "ota.h"
 
 #include <esp_spi_flash.h>  // needed for reading ESP32 chip attributes
 #include <esp_event_loop.h> // needed for Wifi event handler

src/rcommand.cpp

@@ -31,6 +31,11 @@ void set_reset(uint8_t val[]) {
     sprintf(display_line6, "Queue reset");
     flushQueues();
     break;
+  case 9: // reset and ask for software update via Wifi OTA
+    ESP_LOGI(TAG, "Remote command: software update via Wifi");
+    sprintf(display_line6, "Software update");
+    cfg.runmode = 1;
+    break;
   default:
     ESP_LOGW(TAG, "Remote command: reset called with invalid parameter(s)");
   }
@@ -220,27 +225,22 @@ void get_gps(uint8_t val[]) {
 #endif
 };
 
-void set_update(uint8_t val[]) {
-  ESP_LOGI(TAG, "Remote command: get firmware update");
-  ota_update = true;
-};
-
 // assign previously defined functions to set of numeric remote commands
 // format: opcode, function, #bytes params,
-// flag (1 = do make settings persistent / 0 = don't)
+// flag (true = do make settings persistent / false = don't)
 //
 cmd_t table[] = {
     {0x01, set_rssi, 1, true},          {0x02, set_countmode, 1, true},
     {0x03, set_gps, 1, true},           {0x04, set_display, 1, true},
     {0x05, set_lorasf, 1, true},        {0x06, set_lorapower, 1, true},
     {0x07, set_loraadr, 1, true},       {0x08, set_screensaver, 1, true},
-    {0x09, set_reset, 1, false},        {0x0a, set_sendcycle, 1, true},
+    {0x09, set_reset, 1, true},         {0x0a, set_sendcycle, 1, true},
     {0x0b, set_wifichancycle, 1, true}, {0x0c, set_blescantime, 1, true},
     {0x0d, set_vendorfilter, 1, false}, {0x0e, set_blescan, 1, true},
     {0x0f, set_wifiant, 1, true},       {0x10, set_rgblum, 1, true},
     {0x11, set_monitor, 1, true},       {0x12, set_beacon, 7, false},
-    {0x20, set_update, 0, false},       {0x80, get_config, 0, false},
+    {0x80, get_config, 0, false},       {0x81, get_status, 0, false},
-    {0x81, get_status, 0, false},       {0x84, get_gps, 0, false}};
+    {0x84, get_gps, 0, false}};
 
 const uint8_t cmdtablesize =
     sizeof(table) / sizeof(table[0]); // number of commands in command table