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Add resiliency to saved Settings

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Add resiliency to saved Settings (#5065)
This commit is contained in:
Theo Arends 2019-01-30 16:27:17 +01:00
parent 0007df121a
commit 9825d6ffb6
2 changed files with 33 additions and 13 deletions
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1
sonoff/_changelog.ino
View File

@ -1,5 +1,6 @@
/* 6.4.1.13 20190130
* Add command SetOption36 to control boot loop default restoration (#4645, #5063)
* Add resiliency to saved Settings (#5065)
*
* 6.4.1.12 20190128
* Change code use of boolean to bool and byte to uint8_t

45
sonoff/settings.ino
View File

@ -447,31 +447,50 @@ void SettingsSave(uint8_t rotate)
void SettingsLoad(void)
{
/* Load configuration from eeprom or one of 7 slots below if first load does not stop_flash_rotate
*/
// Load configuration from eeprom or one of 7 slots below if first valid load does not stop_flash_rotate
struct SYSCFGH {
uint16_t cfg_holder; // 000
uint16_t cfg_size; // 002
unsigned long save_flag; // 004
} _SettingsH;
unsigned long save_flag = 0;
bool bad_crc = false;
settings_location = SETTINGS_LOCATION +1;
settings_location = 0;
uint32_t flash_location = SETTINGS_LOCATION +1;
for (uint8_t i = 0; i < CFG_ROTATES; i++) {
settings_location--;
ESP.flashRead(settings_location * SPI_FLASH_SEC_SIZE, (uint32*)&Settings, sizeof(SYSCFG));
ESP.flashRead((settings_location -1) * SPI_FLASH_SEC_SIZE, (uint32*)&_SettingsH, sizeof(SYSCFGH));
if (Settings.version > 0x06000000) { bad_crc = (Settings.cfg_crc != GetSettingsCrc()); }
if (Settings.flag.stop_flash_rotate || bad_crc || (Settings.cfg_holder != _SettingsH.cfg_holder) || (Settings.save_flag > _SettingsH.save_flag)) {
break;
flash_location--;
ESP.flashRead(flash_location * SPI_FLASH_SEC_SIZE, (uint32*)&Settings, sizeof(SYSCFG));
bool valid = false;
if (Settings.version > 0x06000000) {
valid = (Settings.cfg_crc == GetSettingsCrc());
} else {
ESP.flashRead((flash_location -1) * SPI_FLASH_SEC_SIZE, (uint32*)&_SettingsH, sizeof(SYSCFGH));
valid = (Settings.cfg_holder == _SettingsH.cfg_holder);
}
if (valid) {
if (Settings.save_flag > save_flag) {
save_flag = Settings.save_flag;
settings_location = flash_location;
if (Settings.flag.stop_flash_rotate) {
break;
}
}
}
delay(1);
}
snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_CONFIG D_LOADED_FROM_FLASH_AT " %X, " D_COUNT " %d"), settings_location, Settings.save_flag);
AddLog(LOG_LEVEL_DEBUG);
if (settings_location > 0) {
ESP.flashRead(settings_location * SPI_FLASH_SEC_SIZE, (uint32*)&Settings, sizeof(SYSCFG));
snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_CONFIG D_LOADED_FROM_FLASH_AT " %X, " D_COUNT " %d"),
settings_location, Settings.save_flag);
AddLog(LOG_LEVEL_DEBUG);
}
#ifndef BE_MINIMAL
if (bad_crc || (Settings.cfg_holder != (uint16_t)CFG_HOLDER)) { SettingsDefault(); }
if (!settings_location || (Settings.cfg_holder != (uint16_t)CFG_HOLDER)) { // Init defaults if cfg_holder differs from user settings in my_user_config.h
SettingsDefault();
}
settings_crc = GetSettingsCrc();
#endif // BE_MINIMAL