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[Scenes] Added the on-off cluster handler for scene EFS (#27041)
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* Added wrapper and shim to use GetClusterCountFromEndpoint in tests with expected results from TestSceneTable

* Restyled by clang-format

* Added the on-off cluster handler for scene EFS

* Added a way to track OnOff state during scene transition time with an <Endpoint, State> array, addressed comments related to code style and nits

* Added shutdown and finish methods in scenetable and scenes-server to ensure memory is released

* Removed SceneTable->Finish in scenes-server shutdown as it is now called in SceneTable's destructor

* Apply suggestions from code review

Co-authored-by: Boris Zbarsky <[email protected]>

* Applied suggestion WIP on fix for intrusive list empty assert

* Apply suggestions from code review

Co-authored-by: Boris Zbarsky <[email protected]>

---------

Co-authored-by: Restyled.io <[email protected]>
Co-authored-by: Boris Zbarsky <[email protected]>
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3 people authored and pull[bot] committed Jun 24, 2023
1 parent 54dc206 commit 2129826
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Showing 8 changed files with 334 additions and 35 deletions.
293 changes: 269 additions & 24 deletions src/app/clusters/on-off-server/on-off-server.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -41,15 +41,253 @@ using namespace chip::app::Clusters;
using namespace chip::app::Clusters::OnOff;
using chip::Protocols::InteractionModel::Status;

#ifdef EMBER_AF_PLUGIN_LEVEL_CONTROL
static bool LevelControlWithOnOffFeaturePresent(EndpointId endpoint)
{
if (!emberAfContainsServer(endpoint, LevelControl::Id))
{
return false;
}

return LevelControlHasFeature(endpoint, LevelControl::Feature::kOnOff);
}
#endif // EMBER_AF_PLUGIN_LEVEL_CONTROL

static constexpr size_t kOnOffMaxEnpointCount =
EMBER_AF_ON_OFF_CLUSTER_SERVER_ENDPOINT_COUNT + CHIP_DEVICE_CONFIG_DYNAMIC_ENDPOINT_COUNT;

#ifdef EMBER_AF_PLUGIN_SCENES
static EmberEventControl sceneHandlerEventControls[kOnOffMaxEnpointCount];
static void sceneOnOffCallback(EndpointId endpoint);

class DefaultOnOffSceneHandler : public scenes::DefaultSceneHandlerImpl
{
public:
/// @brief Struct to keep track of the desired state of the OnOff attribute between ApplyScene and
/// transition time expiration
struct EndpointStatePair
{
EndpointStatePair(EndpointId endpoint = kInvalidEndpointId, bool status = false) : mEndpoint(endpoint), mState(status) {}
EndpointId mEndpoint;
bool mState;
};

/// @brief Struct holding an array of EndpointStatePair. Handles insertion, get and removal by EndpointID.
/// TODO: Implement generic object to handle this boilerplate array manipulation
struct StatePairBuffer
{
bool IsEmpty() const { return (mPairCount == 0); }

CHIP_ERROR FindPair(const EndpointId endpoint, uint16_t & found_index) const
{
VerifyOrReturnError(!IsEmpty(), CHIP_ERROR_NOT_FOUND);
for (found_index = 0; found_index < mPairCount; found_index++)
{
if (endpoint == mStatePairBuffer[found_index].mEndpoint)
{
return CHIP_NO_ERROR;
}
}

return CHIP_ERROR_NOT_FOUND;
}

CHIP_ERROR InsertPair(const EndpointStatePair & status)
{
uint16_t idx;
CHIP_ERROR err = FindPair(status.mEndpoint, idx);

if (CHIP_NO_ERROR == err)
{
mStatePairBuffer[idx] = status;
}
else if (mPairCount < MAX_ENDPOINT_COUNT)
{
// if not found, insert at the end
mStatePairBuffer[mPairCount] = status;
mPairCount++;
}
else
{
return CHIP_ERROR_NO_MEMORY;
}

return CHIP_NO_ERROR;
}

CHIP_ERROR GetPair(const EndpointId endpoint, EndpointStatePair & status) const
{
uint16_t idx;
ReturnErrorOnFailure(FindPair(endpoint, idx));

status = mStatePairBuffer[idx];
return CHIP_NO_ERROR;
}

/// @brief Removes Pair and decrements Pair count if the endpoint existed in the array
/// @param endpoint : endpoint id of the pair
CHIP_ERROR RemovePair(const EndpointId endpoint)
{
uint16_t position;
VerifyOrReturnValue(CHIP_NO_ERROR == FindPair(endpoint, position), CHIP_NO_ERROR);

uint16_t nextPos = static_cast<uint16_t>(position + 1);
uint16_t moveNum = static_cast<uint16_t>(mPairCount - nextPos);

// Compress array after removal, if the removed position is not the last
if (moveNum)
{
memmove(&mStatePairBuffer[position], &mStatePairBuffer[nextPos], sizeof(EndpointStatePair) * moveNum);
}

mPairCount--;
// Clear last occupied position
mStatePairBuffer[mPairCount].mEndpoint = kInvalidEndpointId;

return CHIP_NO_ERROR;
}

uint16_t mPairCount;
EndpointStatePair mStatePairBuffer[kOnOffMaxEnpointCount];
};

StatePairBuffer mSceneEndpointStatePairs;
// As per spec, 1 attribute is scenable in the on off cluster
static constexpr uint8_t scenableAttributeCount = 1;

DefaultOnOffSceneHandler() = default;
~DefaultOnOffSceneHandler() override {}

// Default function for OnOff cluster, only puts the OnOff cluster ID in the span if supported on the given endpoint
virtual void GetSupportedClusters(EndpointId endpoint, Span<ClusterId> & clusterBuffer) override
{
ClusterId * buffer = clusterBuffer.data();
if (emberAfContainsServer(endpoint, OnOff::Id) && clusterBuffer.size() >= 1)
{
buffer[0] = OnOff::Id;
clusterBuffer.reduce_size(1);
}
else
{
clusterBuffer.reduce_size(0);
}
}

// Default function for OnOff cluster, only checks if OnOff is enabled on the endpoint
bool SupportsCluster(EndpointId endpoint, ClusterId cluster) override
{
return (cluster == OnOff::Id) && (emberAfContainsServer(endpoint, OnOff::Id));
}

/// @brief Serialize the Cluster's EFS value
/// @param endpoint target endpoint
/// @param cluster target cluster
/// @param serializedBytes data to serialize into EFS
/// @return CHIP_NO_ERROR if successfully serialized the data, CHIP_ERROR_INVALID_ARGUMENT otherwise
CHIP_ERROR SerializeSave(EndpointId endpoint, ClusterId cluster, MutableByteSpan & serializedBytes) override
{
using AttributeValuePair = Scenes::Structs::AttributeValuePair::Type;

bool currentValue;
// read current on/off value
EmberAfStatus status = Attributes::OnOff::Get(endpoint, &currentValue);
if (status != EMBER_ZCL_STATUS_SUCCESS)
{
ChipLogError(Zcl, "ERR: reading on/off %x", status);
return CHIP_ERROR_READ_FAILED;
}

AttributeValuePair pairs[scenableAttributeCount];

pairs[0].attributeID.SetValue(Attributes::OnOff::Id);
pairs[0].attributeValue = currentValue;

app::DataModel::List<AttributeValuePair> attributeValueList(pairs);

return EncodeAttributeValueList(attributeValueList, serializedBytes);
}

/// @brief Default EFS interaction when applying scene to the OnOff Cluster
/// @param endpoint target endpoint
/// @param cluster target cluster
/// @param serializedBytes Data from nvm
/// @param timeMs transition time in ms
/// @return CHIP_NO_ERROR if value as expected, CHIP_ERROR_INVALID_ARGUMENT otherwise
CHIP_ERROR ApplyScene(EndpointId endpoint, ClusterId cluster, const ByteSpan & serializedBytes,
scenes::TransitionTimeMs timeMs) override
{
app::DataModel::DecodableList<Scenes::Structs::AttributeValuePair::DecodableType> attributeValueList;

VerifyOrReturnError(cluster == OnOff::Id, CHIP_ERROR_INVALID_ARGUMENT);

ReturnErrorOnFailure(DecodeAttributeValueList(serializedBytes, attributeValueList));

size_t attributeCount = 0;
ReturnErrorOnFailure(attributeValueList.ComputeSize(&attributeCount));
VerifyOrReturnError(attributeCount <= scenableAttributeCount, CHIP_ERROR_BUFFER_TOO_SMALL);

auto pair_iterator = attributeValueList.begin();
while (pair_iterator.Next())
{
auto & decodePair = pair_iterator.GetValue();
if (decodePair.attributeID.HasValue())
{
// If attribute ID was encoded, verify it is the proper ID for the OnOff attribute
VerifyOrReturnError(decodePair.attributeID.Value() == Attributes::OnOff::Id, CHIP_ERROR_INVALID_ARGUMENT);
}
ReturnErrorOnFailure(
mSceneEndpointStatePairs.InsertPair(EndpointStatePair(endpoint, static_cast<bool>(decodePair.attributeValue))));
}
// Verify that the EFS was completely read
CHIP_ERROR err = pair_iterator.GetStatus();
if (CHIP_NO_ERROR != err)
{
mSceneEndpointStatePairs.RemovePair(endpoint);
return err;
}

OnOffServer::Instance().scheduleTimerCallbackMs(sceneEventControl(endpoint), timeMs);

return CHIP_NO_ERROR;
}

private:
/**
* @brief Configures EventControl callback when setting On Off through scenes callback
*
* @param[in] endpoint endpoint to start timer for
* @return EmberEventControl* configured event control
*/
EmberEventControl * sceneEventControl(EndpointId endpoint)
{
EmberEventControl * controller =
OnOffServer::Instance().getEventControl(endpoint, Span<EmberEventControl>(sceneHandlerEventControls));
VerifyOrReturnValue(controller != nullptr, nullptr);

controller->endpoint = endpoint;
controller->callback = &sceneOnOffCallback;

return controller;
}
};
static DefaultOnOffSceneHandler sOnOffSceneHandler;

static void sceneOnOffCallback(EndpointId endpoint)
{
DefaultOnOffSceneHandler::EndpointStatePair savedState;
ReturnOnFailure(sOnOffSceneHandler.mSceneEndpointStatePairs.GetPair(endpoint, savedState));
chip::CommandId command = (savedState.mState) ? Commands::On::Id : Commands::Off::Id;
OnOffServer::Instance().setOnOffValue(endpoint, command, false);
ReturnOnFailure(sOnOffSceneHandler.mSceneEndpointStatePairs.RemovePair(endpoint));
}
#endif // EMBER_AF_PLUGIN_SCENES

/**********************************************************
* Attributes Definition
*********************************************************/

static OnOffEffect * firstEffect = nullptr;
OnOffServer OnOffServer::instance;

static constexpr size_t kOnOffMaxEnpointCount =
EMBER_AF_ON_OFF_CLUSTER_SERVER_ENDPOINT_COUNT + CHIP_DEVICE_CONFIG_DYNAMIC_ENDPOINT_COUNT;
static EmberEventControl gEventControls[kOnOffMaxEnpointCount];

/**********************************************************
Expand Down Expand Up @@ -85,7 +323,7 @@ void OnOffServer::cancelEndpointTimerCallback(EmberEventControl * control)

void OnOffServer::cancelEndpointTimerCallback(EndpointId endpoint)
{
auto control = OnOffServer::getEventControl(endpoint);
auto control = OnOffServer::getEventControl(endpoint, Span<EmberEventControl>(gEventControls));
if (control)
{
cancelEndpointTimerCallback(control);
Expand All @@ -107,6 +345,16 @@ OnOffServer & OnOffServer::Instance()
return instance;
}

chip::scenes::SceneHandler * OnOffServer::GetSceneHandler()
{

#ifdef EMBER_AF_PLUGIN_SCENES
return &sOnOffSceneHandler;
#else
return nullptr;
#endif // EMBER_AF_PLUGIN_SCENES
}

bool OnOffServer::HasFeature(chip::EndpointId endpoint, Feature feature)
{
bool success;
Expand All @@ -130,18 +378,6 @@ EmberAfStatus OnOffServer::getOnOffValue(chip::EndpointId endpoint, bool * curre
return status;
}

#ifdef EMBER_AF_PLUGIN_LEVEL_CONTROL
static bool LevelControlWithOnOffFeaturePresent(EndpointId endpoint)
{
if (!emberAfContainsServer(endpoint, LevelControl::Id))
{
return false;
}

return LevelControlHasFeature(endpoint, LevelControl::Feature::kOnOff);
}
#endif // EMBER_AF_PLUGIN_LEVEL_CONTROL

/** @brief On/off Cluster Set Value
*
* This function is called when the on/off value needs to be set, either through
Expand Down Expand Up @@ -194,7 +430,7 @@ EmberAfStatus OnOffServer::setOnOffValue(chip::EndpointId endpoint, chip::Comman
Attributes::OffWaitTime::Set(endpoint, 0);

// Stop timer on the endpoint
EmberEventControl * event = getEventControl(endpoint);
EmberEventControl * event = getEventControl(endpoint, Span<EmberEventControl>(gEventControls));
if (event != nullptr)
{
cancelEndpointTimerCallback(event);
Expand Down Expand Up @@ -307,6 +543,11 @@ void OnOffServer::initOnOffServer(chip::EndpointId endpoint)
status = setOnOffValue(endpoint, onOffValueForStartUp, true);
}

#ifdef EMBER_AF_PLUGIN_SCENES
// Registers Scene handlers for the On/Off cluster on the server
// app::Clusters::Scenes::ScenesServer::Instance().RegisterSceneHandler(OnOffServer::Instance().GetSceneHandler());
#endif

#ifdef EMBER_AF_PLUGIN_MODE_SELECT
// If OnMode is not a null value, then change the current mode to it.
if (onOffValueForStartUp && emberAfContainsServer(endpoint, ModeSelect::Id) &&
Expand All @@ -322,6 +563,7 @@ void OnOffServer::initOnOffServer(chip::EndpointId endpoint)
#endif
}
#endif // IGNORE_ON_OFF_CLUSTER_START_UP_ON_OFF

emberAfPluginOnOffClusterServerPostInitCallback(endpoint);
}

Expand Down Expand Up @@ -629,7 +871,7 @@ void OnOffServer::updateOnOffTimeCommand(chip::EndpointId endpoint)
ChipLogProgress(Zcl, "Timer Callback - wait Off Time cycle finished");

// Stop timer on the endpoint
cancelEndpointTimerCallback(getEventControl(endpoint));
cancelEndpointTimerCallback(getEventControl(endpoint, Span<EmberEventControl>(gEventControls)));
}
}
}
Expand All @@ -645,28 +887,31 @@ bool OnOffServer::areStartUpOnOffServerAttributesNonVolatile(EndpointId endpoint
/**
* @brief event control object for an endpoint
*
* @param[in] endpoint
* @param[in] endpoint target endpoint
* @param[in] eventControlArray Array where to find the event control
* @param[in] eventControlArraySize Size of the event control array
* @return EmberEventControl* configured event control
*/
EmberEventControl * OnOffServer::getEventControl(EndpointId endpoint)
EmberEventControl * OnOffServer::getEventControl(EndpointId endpoint, const Span<EmberEventControl> & eventControlArray)
{
uint16_t index = emberAfGetClusterServerEndpointIndex(endpoint, OnOff::Id, EMBER_AF_ON_OFF_CLUSTER_SERVER_ENDPOINT_COUNT);
if (index >= ArraySize(gEventControls))
if (index >= eventControlArray.size())
{
return nullptr;
}
return &gEventControls[index];

return &eventControlArray[index];
}

/**
* @brief Configures EnventControl callback when using XY colors
* @brief Configures EventControl callback when using XY colors
*
* @param[in] endpoint endpoint to start timer for
* @return EmberEventControl* configured event control
*/
EmberEventControl * OnOffServer::configureEventControl(EndpointId endpoint)
{
EmberEventControl * controller = getEventControl(endpoint);
EmberEventControl * controller = getEventControl(endpoint, Span<EmberEventControl>(gEventControls));
VerifyOrReturnError(controller != nullptr, nullptr);

controller->endpoint = endpoint;
Expand Down
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