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seamless crashing

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This commit is contained in:
Thaddeus Hughes
2026-03-04 12:50:24 -06:00
parent 14f6624471
commit 46851e84bf
5 changed files with 48 additions and 8 deletions
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18
main/rtc.c
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@@ -34,9 +34,10 @@
uint64_t last_activity_tick = 0;
// RTC_DATA_ATTR keeps this var in RTC memory; persists across sleeps (but not across boots)
// RTC_DATA_ATTR keeps these in RTC memory; persists across deep sleep AND software resets (panics, WDT)
RTC_DATA_ATTR int64_t next_alarm_time_s = -1;
RTC_DATA_ATTR bool rtc_set = false;
RTC_DATA_ATTR int64_t rtc_backup_s = 0; // Crash-safe time snapshot
bool rtc_is_set() {
return rtc_set;
}
@@ -94,10 +95,25 @@ void rtc_set_s(int64_t tv_sec)
{
rtc_set = true;
settimeofday(&(struct timeval){.tv_sec = tv_sec, .tv_usec=0}, NULL);
rtc_backup_s = tv_sec;
solar_reset_fsm();
rtc_schedule_next_alarm();
}
void rtc_save_time(void)
{
if (rtc_set)
rtc_backup_s = rtc_get_s();
}
void rtc_restore_time(void)
{
if (rtc_set && rtc_backup_s > 0) {
settimeofday(&(struct timeval){.tv_sec = rtc_backup_s, .tv_usec = 0}, NULL);
ESP_LOGI("RTC", "Time restored from crash backup: %lld", (long long)rtc_backup_s);
}
}
int64_t rtc_get_ms(void)
{
struct timeval tv;