fsfw/thermal/Heater.cpp

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#include "../devicehandlers/DeviceHandlerFailureIsolation.h"
#include "Heater.h"
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#include "../power/Fuse.h"
#include "../ipc/QueueFactory.h"
Heater::Heater(uint32_t objectId, uint8_t switch0, uint8_t switch1) :
HealthDevice(objectId, 0), internalState(STATE_OFF), powerSwitcher(
NULL), pcduQueueId(0), switch0(switch0), switch1(switch1), wasOn(
false), timedOut(false), reactedToBeingFaulty(false), passive(
false), eventQueue(NULL), heaterOnCountdown(10800000)/*about two orbits*/, parameterHelper(
this), lastAction(CLEAR) {
eventQueue = QueueFactory::instance()->createMessageQueue();
}
Heater::~Heater() {
QueueFactory::instance()->deleteMessageQueue(eventQueue);
}
ReturnValue_t Heater::set() {
passive = false;
//wait for clear before doing anything
if (internalState == STATE_WAIT) {
return HasReturnvaluesIF::RETURN_OK;
}
if (healthHelper.healthTable->isHealthy(getObjectId())) {
doAction(SET);
if ((internalState == STATE_OFF) || (internalState == STATE_PASSIVE)){
return HasReturnvaluesIF::RETURN_FAILED;
} else {
return HasReturnvaluesIF::RETURN_OK;
}
} else {
if (healthHelper.healthTable->isFaulty(getObjectId())) {
if (!reactedToBeingFaulty) {
reactedToBeingFaulty = true;
doAction(CLEAR);
}
}
return HasReturnvaluesIF::RETURN_FAILED;
}
}
void Heater::clear(bool passive) {
this->passive = passive;
//Force switching off
if (internalState == STATE_WAIT) {
internalState = STATE_ON;
}
if (healthHelper.healthTable->isHealthy(getObjectId())) {
doAction(CLEAR);
} else if (healthHelper.healthTable->isFaulty(getObjectId())) {
if (!reactedToBeingFaulty) {
reactedToBeingFaulty = true;
doAction(CLEAR);
}
}
}
void Heater::doAction(Action action) {
//only act if we are not in the right state or in a transition
if (action == SET) {
if ((internalState == STATE_OFF) || (internalState == STATE_PASSIVE)
|| (internalState == STATE_EXTERNAL_CONTROL)) {
switchCountdown.setTimeout(powerSwitcher->getSwitchDelayMs());
internalState = STATE_WAIT_FOR_SWITCHES_ON;
powerSwitcher->sendSwitchCommand(switch0, PowerSwitchIF::SWITCH_ON);
powerSwitcher->sendSwitchCommand(switch1, PowerSwitchIF::SWITCH_ON);
}
} else { //clear
if ((internalState == STATE_ON) || (internalState == STATE_FAULTY)
|| (internalState == STATE_EXTERNAL_CONTROL)) {
internalState = STATE_WAIT_FOR_SWITCHES_OFF;
switchCountdown.setTimeout(powerSwitcher->getSwitchDelayMs());
powerSwitcher->sendSwitchCommand(switch0,
PowerSwitchIF::SWITCH_OFF);
powerSwitcher->sendSwitchCommand(switch1,
PowerSwitchIF::SWITCH_OFF);
}
}
}
void Heater::setPowerSwitcher(PowerSwitchIF* powerSwitch) {
this->powerSwitcher = powerSwitch;
}
ReturnValue_t Heater::performOperation(uint8_t opCode) {
handleQueue();
handleEventQueue();
if (!healthHelper.healthTable->isFaulty(getObjectId())) {
reactedToBeingFaulty = false;
}
switch (internalState) {
case STATE_ON:
if ((powerSwitcher->getSwitchState(switch0) == PowerSwitchIF::SWITCH_OFF)
|| (powerSwitcher->getSwitchState(switch1)
== PowerSwitchIF::SWITCH_OFF)) {
//switch went off on its own
//trigger event. FDIR can confirm if it is caused by MniOps and decide on the action
//do not trigger FD events when under external control
if (healthHelper.getHealth() != EXTERNAL_CONTROL) {
triggerEvent(PowerSwitchIF::SWITCH_WENT_OFF);
} else {
internalState = STATE_EXTERNAL_CONTROL;
}
}
break;
case STATE_OFF:
//check if heater is on, ie both switches are on
//if so, just command it to off, to resolve the situation or force a switch stayed on event
//But, only do anything if not already faulty (state off is the stable point for being faulty)
if ((!healthHelper.healthTable->isFaulty(getObjectId()))
&& (powerSwitcher->getSwitchState(switch0)
== PowerSwitchIF::SWITCH_ON)
&& (powerSwitcher->getSwitchState(switch1)
== PowerSwitchIF::SWITCH_ON)) {
//do not trigger FD events when under external control
if (healthHelper.getHealth() != EXTERNAL_CONTROL) {
internalState = STATE_WAIT_FOR_SWITCHES_OFF;
switchCountdown.setTimeout(powerSwitcher->getSwitchDelayMs());
powerSwitcher->sendSwitchCommand(switch0,
PowerSwitchIF::SWITCH_OFF);
powerSwitcher->sendSwitchCommand(switch1,
PowerSwitchIF::SWITCH_OFF);
} else {
internalState = STATE_EXTERNAL_CONTROL;
}
}
break;
case STATE_PASSIVE:
break;
case STATE_WAIT_FOR_SWITCHES_ON:
if (switchCountdown.hasTimedOut()) {
if ((powerSwitcher->getSwitchState(switch0)
== PowerSwitchIF::SWITCH_OFF)
|| (powerSwitcher->getSwitchState(switch1)
== PowerSwitchIF::SWITCH_OFF)) {
triggerEvent(HEATER_STAYED_OFF);
internalState = STATE_WAIT_FOR_FDIR; //wait before retrying or anything
} else {
triggerEvent(HEATER_ON);
internalState = STATE_ON;
}
}
break;
case STATE_WAIT_FOR_SWITCHES_OFF:
if (switchCountdown.hasTimedOut()) {
//only check for both being on (ie heater still on)
if ((powerSwitcher->getSwitchState(switch0)
== PowerSwitchIF::SWITCH_ON)
&& (powerSwitcher->getSwitchState(switch1)
== PowerSwitchIF::SWITCH_ON)) {
if (healthHelper.healthTable->isFaulty(getObjectId())) {
if (passive) {
internalState = STATE_PASSIVE;
} else {
internalState = STATE_OFF; //just accept it
}
triggerEvent(HEATER_ON); //but throw an event to make it more visible
break;
}
triggerEvent(HEATER_STAYED_ON);
internalState = STATE_WAIT_FOR_FDIR; //wait before retrying or anything
} else {
triggerEvent(HEATER_OFF);
if (passive) {
internalState = STATE_PASSIVE;
} else {
internalState = STATE_OFF;
}
}
}
break;
default:
break;
}
if ((powerSwitcher->getSwitchState(switch0) == PowerSwitchIF::SWITCH_ON)
&& (powerSwitcher->getSwitchState(switch1)
== PowerSwitchIF::SWITCH_ON)) {
if (wasOn) {
if (heaterOnCountdown.hasTimedOut()) {
//SHOULDDO this means if a heater fails in single mode, the timeout will start again
//I am not sure if this is a bug, but atm I have no idea how to fix this and think
//it will be ok. whatcouldpossiblygowrong™
if (!timedOut) {
triggerEvent(HEATER_TIMEOUT);
timedOut = true;
}
}
} else {
wasOn = true;
heaterOnCountdown.resetTimer();
timedOut = false;
}
} else {
wasOn = false;
}
return HasReturnvaluesIF::RETURN_OK;
}
void Heater::setSwitch(uint8_t number, ReturnValue_t state,
uint32_t* uptimeOfSwitching) {
if (powerSwitcher == NULL) {
return;
}
if (powerSwitcher->getSwitchState(number) == state) {
*uptimeOfSwitching = INVALID_UPTIME;
} else {
if ((*uptimeOfSwitching == INVALID_UPTIME)) {
powerSwitcher->sendSwitchCommand(number, state);
Clock::getUptime(uptimeOfSwitching);
} else {
uint32_t currentUptime;
Clock::getUptime(&currentUptime);
if (currentUptime - *uptimeOfSwitching
> powerSwitcher->getSwitchDelayMs()) {
*uptimeOfSwitching = INVALID_UPTIME;
if (healthHelper.healthTable->isHealthy(getObjectId())) {
if (state == PowerSwitchIF::SWITCH_ON) {
triggerEvent(HEATER_STAYED_OFF);
} else {
triggerEvent(HEATER_STAYED_ON);
}
}
//SHOULDDO MiniOps during switch timeout leads to a faulty switch
}
}
}
}
MessageQueueId_t Heater::getCommandQueue() const {
return commandQueue->getId();
}
ReturnValue_t Heater::initialize() {
ReturnValue_t result = SystemObject::initialize();
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
EventManagerIF* manager = objectManager->get<EventManagerIF>(
objects::EVENT_MANAGER);
if (manager == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
result = manager->registerListener(eventQueue->getId());
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
ConfirmsFailuresIF* pcdu = objectManager->get<ConfirmsFailuresIF>(
DeviceHandlerFailureIsolation::powerConfirmationId);
if (pcdu == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
pcduQueueId = pcdu->getEventReceptionQueue();
result = manager->subscribeToAllEventsFrom(eventQueue->getId(),
getObjectId());
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
result = parameterHelper.initialize();
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
result = healthHelper.initialize();
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
return HasReturnvaluesIF::RETURN_OK;
}
void Heater::handleQueue() {
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CommandMessage command;
ReturnValue_t result = commandQueue->receiveMessage(&command);
if (result == HasReturnvaluesIF::RETURN_OK) {
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result = healthHelper.handleHealthCommand(&command);
if (result == HasReturnvaluesIF::RETURN_OK) {
return;
}
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result = parameterHelper.handleParameterMessage(&command);
if (result == HasReturnvaluesIF::RETURN_OK) {
return;
}
}
}
ReturnValue_t Heater::getParameter(uint8_t domainId, uint8_t uniqueId,
ParameterWrapper* parameterWrapper, const ParameterWrapper* newValues,
uint16_t startAtIndex) {
if (domainId != DOMAIN_ID_BASE) {
return INVALID_DOMAIN_ID;
}
switch (uniqueId) {
case 0:
parameterWrapper->set(heaterOnCountdown.timeout);
break;
default:
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return INVALID_IDENTIFIER_ID;
}
return HasReturnvaluesIF::RETURN_OK;
}
void Heater::handleEventQueue() {
EventMessage event;
for (ReturnValue_t result = eventQueue->receiveMessage(&event);
result == HasReturnvaluesIF::RETURN_OK;
result = eventQueue->receiveMessage(&event)) {
switch (event.getMessageId()) {
case EventMessage::EVENT_MESSAGE:
switch (event.getEvent()) {
case Fuse::FUSE_WENT_OFF:
case HEATER_STAYED_OFF:
case HEATER_STAYED_ON://Setting it faulty does not help, but we need to reach a stable state and can check for being faulty before throwing this event again.
if (healthHelper.healthTable->isCommandable(getObjectId())) {
healthHelper.setHealth(HasHealthIF::FAULTY);
internalState = STATE_FAULTY;
}
break;
case PowerSwitchIF::SWITCH_WENT_OFF:
internalState = STATE_WAIT;
event.setMessageId(EventMessage::CONFIRMATION_REQUEST);
if (pcduQueueId != 0) {
eventQueue->sendMessage(pcduQueueId, &event);
} else {
healthHelper.setHealth(HasHealthIF::FAULTY);
internalState = STATE_FAULTY;
}
break;
default:
return;
}
break;
case EventMessage::YOUR_FAULT:
healthHelper.setHealth(HasHealthIF::FAULTY);
internalState = STATE_FAULTY;
break;
case EventMessage::MY_FAULT:
//do nothing, we are already in STATE_WAIT and wait for a clear()
break;
default:
return;
}
}
}