Based on this issue Default value of attributes of window covering with Apple. · Issue #26440 · project-chip/connectedhomeip · GitHub, I did a small modification to the Window project and it seems to have solved the issue, at least on my side. I basically make sure that the position values of the cover are set to some non-empty value during initialization (even though they are already set in the ZAP configuration file).
You can try it by adding this code to ZclCallbacks.cpp:
void emberAfWindowCoveringClusterInitCallback(chip::EndpointId endpoint)
{
const auto logOnFailure = [](EmberAfStatus status, const char *attributeName) {
if (status != EMBER_ZCL_STATUS_SUCCESS) {
ChipLogError(Zcl, "Failed to set WindowCovering %s: %x", attributeName, status);
}
};
app::DataModel::Nullable<chip::Percent100ths> currentPercent100ths;
app::DataModel::Nullable<chip::Percent100ths> targetPercent100ths;
app::DataModel::Nullable<chip::Percent> currentPercentage;
EmberAfStatus status;
status = Attributes::CurrentPositionLiftPercentage::Get(endpoint, currentPercentage);
if (currentPercentage.IsNull()) {
logOnFailure(Attributes::CurrentPositionLiftPercentage::Set(endpoint, 0),
"current position lift percentage");
}
status = Attributes::CurrentPositionTiltPercentage::Get(endpoint, currentPercentage);
if (currentPercentage.IsNull()) {
logOnFailure(Attributes::CurrentPositionTiltPercentage::Set(endpoint, 0),
"current position tilt percentage");
}
status = Attributes::CurrentPositionLiftPercent100ths::Get(endpoint, currentPercent100ths);
if (currentPercent100ths.IsNull()) {
currentPercent100ths.SetNonNull(0);
logOnFailure(Attributes::CurrentPositionLiftPercent100ths::Set(endpoint, 0),
"current position lift percent 100ths");
}
status = Attributes::TargetPositionLiftPercent100ths::Get(endpoint, targetPercent100ths);
if (targetPercent100ths.IsNull()) {
logOnFailure(Attributes::TargetPositionLiftPercent100ths::Set(endpoint, currentPercent100ths),
"target position lift percent 100ths");
}
status = Attributes::CurrentPositionTiltPercent100ths::Get(endpoint, currentPercent100ths);
if (currentPercent100ths.IsNull()) {
currentPercent100ths.SetNonNull(0);
logOnFailure(Attributes::CurrentPositionTiltPercent100ths::Set(endpoint, 0),
"current position tilt percent 100ths");
}
status = Attributes::TargetPositionTiltPercent100ths::Get(endpoint, targetPercent100ths);
if (targetPercent100ths.IsNull()) {
logOnFailure(Attributes::TargetPositionTiltPercent100ths::Set(endpoint, currentPercent100ths),
"target position tilt percent 100ths");
}
}
Hope this solves it.
