Don't send brightness to car service inside Emulator
This fixes this cts test: android.cts.statsd.atom.UidAtomTests#testScreenBrightness
Bug: 139959479
Test: atest android.cts.statsd.atom.UidAtomTests#testScreenBrightness
Change-Id: I66f858ce7686a90cd395f4e646133e8ea4604be4
Merged-In: I66f858ce7686a90cd395f4e646133e8ea4604be4
(cherry picked from commit 1322465c48d0c3dfa5953573b80a89460b8e7e95)
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
index ba81a52..79ce81c 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.cpp
@@ -15,8 +15,9 @@
*/
#define LOG_TAG "DefaultVehicleHal_v2_0"
-#include <android/log.h>
#include <android-base/macros.h>
+#include <android/log.h>
+#include <sys/system_properties.h>
#include "EmulatedVehicleHal.h"
#include "JsonFakeValueGenerator.h"
@@ -203,8 +204,16 @@
}
getEmulatorOrDie()->doSetValueFromClient(propValue);
- doHalEvent(getValuePool()->obtain(propValue));
+ if (mInEmulator && propValue.prop == toInt(VehicleProperty::DISPLAY_BRIGHTNESS)) {
+ // Emulator does not support remote brightness control, b/139959479
+ // do not send it down so that it does not bring unnecessary property change event
+ // return other error code, such NOT_AVAILABLE, causes Emulator to be freezing
+ // TODO: return StatusCode::NOT_AVAILABLE once the above issue is fixed
+ return StatusCode::OK;
+ }
+
+ doHalEvent(getValuePool()->obtain(propValue));
return StatusCode::OK;
}
@@ -219,6 +228,17 @@
return false;
}
+// determine if it's running inside Android Emulator
+static bool isInEmulator() {
+ char propValue[PROP_VALUE_MAX];
+ bool isEmulator = (__system_property_get("ro.kernel.qemu", propValue) != 0);
+ if (!isEmulator) {
+ isEmulator = (__system_property_get("ro.hardware", propValue) != 0) &&
+ (!strcmp(propValue, "ranchu") || !strcmp(propValue, "goldfish"));
+ }
+ return isEmulator;
+}
+
// Parse supported properties list and generate vector of property values to hold current values.
void EmulatedVehicleHal::onCreate() {
static constexpr bool shouldUpdateStatus = true;
@@ -269,6 +289,8 @@
}
initObd2LiveFrame(*mPropStore->getConfigOrDie(OBD2_LIVE_FRAME));
initObd2FreezeFrame(*mPropStore->getConfigOrDie(OBD2_FREEZE_FRAME));
+ mInEmulator = isInEmulator();
+ ALOGD("mInEmulator=%s", mInEmulator ? "true" : "false");
}
std::vector<VehiclePropConfig> EmulatedVehicleHal::listProperties() {
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
index 78895e3..367a6ec 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleHal.h
@@ -86,6 +86,7 @@
std::unordered_set<int32_t> mHvacPowerProps;
RecurrentTimer mRecurrentTimer;
GeneratorHub mGeneratorHub;
+ bool mInEmulator;
};
} // impl