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feat(firmware): log boot and reboot reason to event log

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Every boot logs EVT_BOOT with esp_reset_reason(); every deliberate
ESP.restart() is preceded by EVT_REBOOT with a reason code. This
gives us a persistent answer to 'why did the device just reboot?'.
This commit is contained in:
Peter Woolery
2026-04-23 13:21:23 -07:00
parent 9eb1e19651
commit 95724bf3ff
1 changed files with 13 additions and 1 deletions
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14
firmware/src/main.cpp
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@@ -8,6 +8,8 @@
#include "cv.h" #include "cv.h"
#include "ble_scanner.h" #include "ble_scanner.h"
#include "reporter.h" #include "reporter.h"
#include "event_log.h"
#include <esp_system.h>
// LED on GPIO2 (TimerCamera-F built-in LED) — verify against board schematic // LED on GPIO2 (TimerCamera-F built-in LED) — verify against board schematic
// Factory reset: hold GPIO37 (BOOT button) for 5 seconds // Factory reset: hold GPIO37 (BOOT button) for 5 seconds
@@ -45,6 +47,7 @@ static void check_factory_reset() {
uint32_t held = millis(); uint32_t held = millis();
while (digitalRead(BUTTON_PIN) == LOW) { while (digitalRead(BUTTON_PIN) == LOW) {
if (millis() - held >= FACTORY_RESET_HOLD_MS) { if (millis() - held >= FACTORY_RESET_HOLD_MS) {
event_log_write(EVT_REBOOT, REBOOT_FACTORY_RESET, 0);
config_clear_wifi(); config_clear_wifi();
ESP.restart(); ESP.restart();
} }
@@ -140,6 +143,9 @@ void setup() {
pinMode(BUTTON_PIN, INPUT_PULLUP); pinMode(BUTTON_PIN, INPUT_PULLUP);
led_set(true); // on = booting led_set(true); // on = booting
event_log_init();
event_log_write(EVT_BOOT, (uint16_t)esp_reset_reason(), 0);
if (!config_load(g_cfg)) { if (!config_load(g_cfg)) {
Serial.println("FATAL: device_id/location_id/hmac_secret not provisioned"); Serial.println("FATAL: device_id/location_id/hmac_secret not provisioned");
while (true) { delay(500); led_set(!digitalRead(LED_PIN)); } // fast blink while (true) { delay(500); led_set(!digitalRead(LED_PIN)); } // fast blink
@@ -148,6 +154,7 @@ void setup() {
// Connect to WiFi // Connect to WiFi
if (!config_has_wifi()) { if (!config_has_wifi()) {
provisioning_run(); provisioning_run();
event_log_write(EVT_REBOOT, REBOOT_WIFI_REPROV, 0);
ESP.restart(); ESP.restart();
} }
@@ -161,6 +168,7 @@ void setup() {
if (WiFi.status() != WL_CONNECTED) { if (WiFi.status() != WL_CONNECTED) {
// Saved creds failed — re-provision // Saved creds failed — re-provision
provisioning_run(); provisioning_run();
event_log_write(EVT_REBOOT, REBOOT_WIFI_REPROV, 0);
ESP.restart(); ESP.restart();
} }
@@ -183,7 +191,11 @@ void setup() {
// OTA update support // OTA update support
ArduinoOTA.setHostname(g_cfg.device_id.c_str()); ArduinoOTA.setHostname(g_cfg.device_id.c_str());
ArduinoOTA.onStart([]() { ble_scanner_pause(); }); ArduinoOTA.onStart([]() { ble_scanner_pause(); });
ArduinoOTA.onEnd([]() { ble_scanner_resume(); ESP.restart(); }); ArduinoOTA.onEnd([]() {
ble_scanner_resume();
event_log_write(EVT_REBOOT, REBOOT_OTA, 0);
ESP.restart();
});
ArduinoOTA.onError([](ota_error_t e) { ble_scanner_resume(); }); ArduinoOTA.onError([](ota_error_t e) { ble_scanner_resume(); });
ArduinoOTA.begin(); ArduinoOTA.begin();