Default hal for Occupant Awareness.
Bug: 142383127
Test: Verified that the system starts the default hal automatically.
Change-Id: I851f85bc283165891943b82c6c07f3273847b032
diff --git a/automotive/occupant_awareness/aidl/default/Android.bp b/automotive/occupant_awareness/aidl/default/Android.bp
new file mode 100644
index 0000000..1b2fba2
--- /dev/null
+++ b/automotive/occupant_awareness/aidl/default/Android.bp
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+cc_binary {
+ name: "android.hardware.automotive.occupant_awareness@1.0-service",
+ init_rc: ["android.hardware.automotive.occupant_awareness@1.0-service.rc"],
+ relative_install_path: "hw",
+ vendor: true,
+ srcs: [
+ "service.cpp",
+ "OccupantAwareness.cpp",
+ ],
+ shared_libs: [
+ "libbase",
+ "libbinder_ndk",
+ "libutils",
+ "android.hardware.automotive.occupant_awareness-ndk_platform",
+ ],
+}
diff --git a/automotive/occupant_awareness/aidl/default/OccupantAwareness.cpp b/automotive/occupant_awareness/aidl/default/OccupantAwareness.cpp
new file mode 100644
index 0000000..ef5055f
--- /dev/null
+++ b/automotive/occupant_awareness/aidl/default/OccupantAwareness.cpp
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "OccupantAwareness.h"
+
+namespace android {
+namespace hardware {
+namespace automotive {
+namespace occupant_awareness {
+namespace V1_0 {
+namespace implementation {
+
+using ndk::ScopedAStatus;
+
+static const int32_t kAllCapabilities = OccupantAwareness::CAP_PRESENSE_DETECTION |
+ OccupantAwareness::CAP_GAZE_DETECTION |
+ OccupantAwareness::CAP_DRIVER_MONITORING_DETECTION;
+
+ScopedAStatus OccupantAwareness::startDetection(OccupantAwarenessStatus* status) {
+ std::lock_guard<std::mutex> lock(mMutex);
+ if (mStatus != OccupantAwarenessStatus::NOT_SUPPORTED) {
+ mStatus = OccupantAwarenessStatus::NOT_SUPPORTED;
+ if (mCallback) {
+ mCallback->onSystemStatusChanged(kAllCapabilities,
+ OccupantAwarenessStatus::NOT_SUPPORTED);
+ }
+ }
+ *status = mStatus;
+ return ScopedAStatus::ok();
+}
+
+ScopedAStatus OccupantAwareness::stopDetection(OccupantAwarenessStatus* status) {
+ std::lock_guard<std::mutex> lock(mMutex);
+ if (mStatus != OccupantAwarenessStatus::NOT_INITIALIZED) {
+ mStatus = OccupantAwarenessStatus::NOT_INITIALIZED;
+ if (mCallback) {
+ mCallback->onSystemStatusChanged(kAllCapabilities,
+ OccupantAwarenessStatus::NOT_INITIALIZED);
+ }
+ }
+ *status = mStatus;
+ return ScopedAStatus::ok();
+}
+
+ScopedAStatus OccupantAwareness::getCapabilityForRole(Role occupantRole, int32_t* capabilities) {
+ if (!isValidRole(occupantRole)) {
+ return ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED);
+ }
+
+ // No awareness capability for default HAL.
+ *capabilities = 0;
+ return ScopedAStatus::ok();
+}
+
+ScopedAStatus OccupantAwareness::getState(Role occupantRole, int detectionCapability,
+ OccupantAwarenessStatus* status) {
+ if (!isValidRole(occupantRole)) {
+ return ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED);
+ }
+
+ if (!isValidDetectionCapabilities(detectionCapability) ||
+ !isSingularCapability(detectionCapability)) {
+ return ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED);
+ }
+
+ std::lock_guard<std::mutex> lock(mMutex);
+ *status = mStatus;
+ return ScopedAStatus::ok();
+}
+
+ScopedAStatus OccupantAwareness::setCallback(
+ const std::shared_ptr<IOccupantAwarenessClientCallback>& callback) {
+ if (callback == nullptr) {
+ return ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED);
+ }
+
+ std::lock_guard<std::mutex> lock(mMutex);
+ mCallback = callback;
+ return ScopedAStatus::ok();
+}
+
+ScopedAStatus OccupantAwareness::getLatestDetection(OccupantDetections* detections) {
+ // No detection generated for default hal.
+ (void)detections;
+ return ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED);
+}
+
+bool OccupantAwareness::isValidRole(Role occupantRole) {
+ int intVal = static_cast<int>(occupantRole);
+ int allOccupants = static_cast<int>(Role::ALL_OCCUPANTS);
+ return (occupantRole != Role::INVALID) && ((intVal & (~allOccupants)) == 0);
+}
+
+bool OccupantAwareness::isValidDetectionCapabilities(int detectionCapabilities) {
+ return (detectionCapabilities != CAP_NONE) &&
+ ((detectionCapabilities & (~kAllCapabilities)) == 0);
+}
+
+bool OccupantAwareness::isSingularCapability(int detectionCapability) {
+ // Check whether the value is 0, or the value has only one bit set.
+ return (detectionCapability & (detectionCapability - 1)) == 0;
+}
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace occupant_awareness
+} // namespace automotive
+} // namespace hardware
+} // namespace android
diff --git a/automotive/occupant_awareness/aidl/default/OccupantAwareness.h b/automotive/occupant_awareness/aidl/default/OccupantAwareness.h
new file mode 100644
index 0000000..ac51aa4
--- /dev/null
+++ b/automotive/occupant_awareness/aidl/default/OccupantAwareness.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+#include <aidl/android/hardware/automotive/occupant_awareness/BnOccupantAwareness.h>
+#include <aidl/android/hardware/automotive/occupant_awareness/BnOccupantAwarenessClientCallback.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+namespace hardware {
+namespace automotive {
+namespace occupant_awareness {
+namespace V1_0 {
+namespace implementation {
+
+using ::aidl::android::hardware::automotive::occupant_awareness::BnOccupantAwareness;
+using ::aidl::android::hardware::automotive::occupant_awareness::IOccupantAwarenessClientCallback;
+using ::aidl::android::hardware::automotive::occupant_awareness::OccupantAwarenessStatus;
+using ::aidl::android::hardware::automotive::occupant_awareness::OccupantDetections;
+using ::aidl::android::hardware::automotive::occupant_awareness::Role;
+
+/**
+ * The default HAL mimics a system which has no Occupant awareness capability. The hal does not
+ * do any useful work, and returns appropriate failure code / status.
+ **/
+class OccupantAwareness : public BnOccupantAwareness {
+ public:
+ // Methods from ::android::hardware::automotive::occupant_awareness::IOccupantAwareness
+ // follow.
+ ndk::ScopedAStatus startDetection(OccupantAwarenessStatus* status) override;
+ ndk::ScopedAStatus stopDetection(OccupantAwarenessStatus* status) override;
+ ndk::ScopedAStatus getCapabilityForRole(Role occupantRole, int32_t* capabilities) override;
+ ndk::ScopedAStatus getState(Role occupantRole, int detectionCapability,
+ OccupantAwarenessStatus* status) override;
+ ndk::ScopedAStatus setCallback(
+ const std::shared_ptr<IOccupantAwarenessClientCallback>& callback) override;
+ ndk::ScopedAStatus getLatestDetection(OccupantDetections* detections) override;
+
+ private:
+ bool isValidRole(Role occupantRole);
+ bool isValidDetectionCapabilities(int detectionCapabilities);
+ bool isSingularCapability(int detectionCapability);
+
+ std::mutex mMutex;
+ std::shared_ptr<IOccupantAwarenessClientCallback> mCallback = nullptr;
+ OccupantAwarenessStatus mStatus = OccupantAwarenessStatus::NOT_INITIALIZED;
+};
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace occupant_awareness
+} // namespace automotive
+} // namespace hardware
+} // namespace android
diff --git a/automotive/occupant_awareness/aidl/default/android.hardware.automotive.occupant_awareness@1.0-service.rc b/automotive/occupant_awareness/aidl/default/android.hardware.automotive.occupant_awareness@1.0-service.rc
new file mode 100644
index 0000000..35d5bca
--- /dev/null
+++ b/automotive/occupant_awareness/aidl/default/android.hardware.automotive.occupant_awareness@1.0-service.rc
@@ -0,0 +1,4 @@
+service hal_occupant_awareness_default /vendor/bin/hw/android.hardware.automotive.occupant_awareness@1.0-service
+ class hal
+ user system
+ group system
diff --git a/automotive/occupant_awareness/aidl/default/service.cpp b/automotive/occupant_awareness/aidl/default/service.cpp
new file mode 100644
index 0000000..44960fb
--- /dev/null
+++ b/automotive/occupant_awareness/aidl/default/service.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.automotive.occupant_awareness@1.0-service"
+
+#include <unistd.h>
+
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+
+#include "OccupantAwareness.h"
+
+using ::aidl::android::hardware::automotive::occupant_awareness::IOccupantAwareness;
+using ::android::hardware::automotive::occupant_awareness::V1_0::implementation::OccupantAwareness;
+using ::ndk::ScopedAStatus;
+using ::ndk::SharedRefBase;
+
+const static char kOccupantAwarenessServiceName[] = "default";
+
+int main() {
+ ABinderProcess_setThreadPoolMaxThreadCount(0);
+ LOG(INFO) << "Occupant Awareness service is starting";
+ std::shared_ptr<OccupantAwareness> occupantAwareness = SharedRefBase::make<OccupantAwareness>();
+
+ const std::string instance =
+ std::string() + IOccupantAwareness::descriptor + "/" + kOccupantAwarenessServiceName;
+
+ binder_status_t status =
+ AServiceManager_addService(occupantAwareness->asBinder().get(), instance.c_str());
+ if (status == STATUS_OK) {
+ LOG(INFO) << "Service " << kOccupantAwarenessServiceName << " is ready";
+ ABinderProcess_joinThreadPool();
+ } else {
+ LOG(ERROR) << "Could not register service " << kOccupantAwarenessServiceName
+ << ", status: " << status;
+ }
+
+ // In normal operation, we don't expect the thread pool to exit.
+ LOG(ERROR) << "Occupant Awareness service is shutting down";
+ return 1;
+}
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 4bd8332..c9eb6d4 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -49,6 +49,13 @@
<instance>default</instance>
</interface>
</hal>
+ <hal format="aidl" optional="true">
+ <name>android.hardware.automotive.occupant_awareness</name>
+ <interface>
+ <name>IOccupantAwareness</name>
+ <instance>default</instance>
+ </interface>
+ </hal>
<hal format="hidl" optional="true">
<name>android.hardware.automotive.vehicle</name>
<version>2.0</version>