Add a sub-HAL implementation for testing multi-HAL
Creates a fake sub-HAL using the default implementation for sensors HAL
2.0 with some small modifications to support the multi-HAL interface.
This sub-HAL can be configured to support two different sets of sensors
making it easier to build and load two different sub-HAL implementations
onto device and verify the multihal implementation works.
Bug: 136511617
Test: compile only. Once multihal can load in sub-HALs, then this can be
accurately tested.
Change-Id: I9b136506bdbc8a3b196fd363748bddfcdd564daf
diff --git a/sensors/2.0/multihal/Android.bp b/sensors/2.0/multihal/Android.bp
index 4dec768..f0b33e4 100644
--- a/sensors/2.0/multihal/Android.bp
+++ b/sensors/2.0/multihal/Android.bp
@@ -23,6 +23,9 @@
"HalProxy.cpp",
],
init_rc: ["android.hardware.sensors@2.0-service-multihal.rc"],
+ header_libs: [
+ "android.hardware.sensors@2.0-subhal.header",
+ ],
shared_libs: [
"android.hardware.sensors@1.0",
"android.hardware.sensors@2.0",
@@ -36,3 +39,9 @@
],
vintf_fragments: ["android.hardware.sensors@2.0-multihal.xml"],
}
+
+cc_library_headers {
+ name: "android.hardware.sensors@2.0-subhal.header",
+ vendor: true,
+ export_include_dirs: ["include"],
+}
\ No newline at end of file
diff --git a/sensors/2.0/multihal/SubHal.h b/sensors/2.0/multihal/include/SubHal.h
similarity index 99%
rename from sensors/2.0/multihal/SubHal.h
rename to sensors/2.0/multihal/include/SubHal.h
index 152f91d..75e93a1 100644
--- a/sensors/2.0/multihal/SubHal.h
+++ b/sensors/2.0/multihal/include/SubHal.h
@@ -163,7 +163,7 @@
/**
* @return A human-readable name for use in wake locks and logging.
*/
- virtual const std::string& getName() = 0;
+ virtual const std::string getName() = 0;
/**
* First method invoked on the sub-HAL after it's allocated through sensorsHalGetSubHal() by the
diff --git a/sensors/2.0/multihal/testing/Android.bp b/sensors/2.0/multihal/testing/Android.bp
new file mode 100644
index 0000000..3dedbd6
--- /dev/null
+++ b/sensors/2.0/multihal/testing/Android.bp
@@ -0,0 +1,55 @@
+//
+// 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_defaults {
+ name: "android.hardware.sensors@2.0-fakesubhal-defaults",
+ vendor: true,
+ srcs: [
+ "Sensor.cpp",
+ "SensorsSubHal.cpp",
+ ],
+ header_libs: [
+ "android.hardware.sensors@2.0-subhal.header",
+ ],
+ shared_libs: [
+ "android.hardware.sensors@1.0",
+ "android.hardware.sensors@2.0",
+ "libcutils",
+ "libfmq",
+ "libhidlbase",
+ "libhidltransport",
+ "liblog",
+ "libpower",
+ "libutils",
+ ],
+}
+
+cc_library {
+ name: "android.hardware.sensors@2.0-fakesubhal-config1",
+ defaults: ["android.hardware.sensors@2.0-fakesubhal-defaults"],
+ cflags: [
+ "-DSUPPORT_CONTINUOUS_SENSORS",
+ "-DSUB_HAL_NAME=\"FakeSubHal-Continuous\"",
+ ],
+}
+
+cc_library {
+ name: "android.hardware.sensors@2.0-fakesubhal-config2",
+ defaults: ["android.hardware.sensors@2.0-fakesubhal-defaults"],
+ cflags: [
+ "-DSUPPORT_ON_CHANGE_SENSORS",
+ "-DSUB_HAL_NAME=\"FakeSubHal-OnChange\"",
+ ],
+}
\ No newline at end of file
diff --git a/sensors/2.0/multihal/testing/README b/sensors/2.0/multihal/testing/README
new file mode 100644
index 0000000..ddcc584
--- /dev/null
+++ b/sensors/2.0/multihal/testing/README
@@ -0,0 +1,19 @@
+This directory contains a modified version of the default implementation
+provided for sensors HAL 2.0 to support multi-HAL 2.0. It should be used as a
+means to verify the multi-HAL 2.0 implementation can successfully load and
+interact with sub-HALs.
+
+This sub-HAL implementation has two macros that can be used to configure support
+for different sets of sensors. One "SUPPORT_CONTINUOUS_SENSORS", enables
+support for continuous sensors like accel, and gyro whereas the other
+"SUPPORT_ON_CHANGE_SENSORS" enables support for on change sensors like the
+light and proximity sensor. A build target is defined for each of these macros,
+but more targets could be added to support both in one sub-HAL or none at all,
+if necessary.
+
+When built, the library will be written to
+out/target/product/<device>/vendor/lib64/android.hardware.sensors@2.0-fakesubhal.so
+
+Take this .so and place it where the multi-HAL config will cause the HalProxy to
+look and then restart the system server with adb shell stop / adb shell start
+to cause the multi-HAL to restart and attempt to load in the sub-HAL.
diff --git a/sensors/2.0/multihal/testing/Sensor.cpp b/sensors/2.0/multihal/testing/Sensor.cpp
new file mode 100644
index 0000000..e095efe
--- /dev/null
+++ b/sensors/2.0/multihal/testing/Sensor.cpp
@@ -0,0 +1,372 @@
+/*
+ * 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 "Sensor.h"
+
+#include <utils/SystemClock.h>
+
+#include <cmath>
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace subhal {
+namespace implementation {
+
+using ::android::hardware::sensors::V1_0::MetaDataEventType;
+using ::android::hardware::sensors::V1_0::SensorFlagBits;
+using ::android::hardware::sensors::V1_0::SensorStatus;
+
+static constexpr float kDefaultMaxDelayUs = 10 * 1000 * 1000;
+
+Sensor::Sensor(ISensorsEventCallback* callback)
+ : mIsEnabled(false),
+ mSamplingPeriodNs(0),
+ mLastSampleTimeNs(0),
+ mCallback(callback),
+ mMode(OperationMode::NORMAL) {
+ mRunThread = std::thread(startThread, this);
+}
+
+Sensor::~Sensor() {
+ std::unique_lock<std::mutex> lock(mRunMutex);
+ mStopThread = true;
+ mIsEnabled = false;
+ mWaitCV.notify_all();
+ lock.release();
+ mRunThread.join();
+}
+
+const SensorInfo& Sensor::getSensorInfo() const {
+ return mSensorInfo;
+}
+
+void Sensor::batch(int32_t samplingPeriodNs) {
+ samplingPeriodNs =
+ std::clamp(samplingPeriodNs, mSensorInfo.minDelay * 1000, mSensorInfo.maxDelay * 1000);
+
+ if (mSamplingPeriodNs != samplingPeriodNs) {
+ mSamplingPeriodNs = samplingPeriodNs;
+ // Wake up the 'run' thread to check if a new event should be generated now
+ mWaitCV.notify_all();
+ }
+}
+
+void Sensor::activate(bool enable) {
+ if (mIsEnabled != enable) {
+ std::unique_lock<std::mutex> lock(mRunMutex);
+ mIsEnabled = enable;
+ mWaitCV.notify_all();
+ }
+}
+
+Result Sensor::flush() {
+ // Only generate a flush complete event if the sensor is enabled and if the sensor is not a
+ // one-shot sensor.
+ if (!mIsEnabled || (mSensorInfo.flags & static_cast<uint32_t>(SensorFlagBits::ONE_SHOT_MODE))) {
+ return Result::BAD_VALUE;
+ }
+
+ // Note: If a sensor supports batching, write all of the currently batched events for the sensor
+ // to the Event FMQ prior to writing the flush complete event.
+ Event ev;
+ ev.sensorHandle = mSensorInfo.sensorHandle;
+ ev.sensorType = SensorType::META_DATA;
+ ev.u.meta.what = MetaDataEventType::META_DATA_FLUSH_COMPLETE;
+ std::vector<Event> evs{ev};
+ mCallback->postEvents(evs, isWakeUpSensor());
+
+ return Result::OK;
+}
+
+void Sensor::startThread(Sensor* sensor) {
+ sensor->run();
+}
+
+void Sensor::run() {
+ std::unique_lock<std::mutex> runLock(mRunMutex);
+ constexpr int64_t kNanosecondsInSeconds = 1000 * 1000 * 1000;
+
+ while (!mStopThread) {
+ if (!mIsEnabled || mMode == OperationMode::DATA_INJECTION) {
+ mWaitCV.wait(runLock, [&] {
+ return ((mIsEnabled && mMode == OperationMode::NORMAL) || mStopThread);
+ });
+ } else {
+ timespec curTime;
+ clock_gettime(CLOCK_REALTIME, &curTime);
+ int64_t now = (curTime.tv_sec * kNanosecondsInSeconds) + curTime.tv_nsec;
+ int64_t nextSampleTime = mLastSampleTimeNs + mSamplingPeriodNs;
+
+ if (now >= nextSampleTime) {
+ mLastSampleTimeNs = now;
+ nextSampleTime = mLastSampleTimeNs + mSamplingPeriodNs;
+ mCallback->postEvents(readEvents(), isWakeUpSensor());
+ }
+
+ mWaitCV.wait_for(runLock, std::chrono::nanoseconds(nextSampleTime - now));
+ }
+ }
+}
+
+bool Sensor::isWakeUpSensor() {
+ return mSensorInfo.flags & static_cast<uint32_t>(SensorFlagBits::WAKE_UP);
+}
+
+std::vector<Event> Sensor::readEvents() {
+ std::vector<Event> events;
+ Event event;
+ event.sensorHandle = mSensorInfo.sensorHandle;
+ event.sensorType = mSensorInfo.type;
+ event.timestamp = ::android::elapsedRealtimeNano();
+ event.u.vec3.x = 0;
+ event.u.vec3.y = 0;
+ event.u.vec3.z = 0;
+ event.u.vec3.status = SensorStatus::ACCURACY_HIGH;
+ events.push_back(event);
+ return events;
+}
+
+void Sensor::setOperationMode(OperationMode mode) {
+ if (mMode != mode) {
+ std::unique_lock<std::mutex> lock(mRunMutex);
+ mMode = mode;
+ mWaitCV.notify_all();
+ }
+}
+
+bool Sensor::supportsDataInjection() const {
+ return mSensorInfo.flags & static_cast<uint32_t>(SensorFlagBits::DATA_INJECTION);
+}
+
+Result Sensor::injectEvent(const Event& event) {
+ Result result = Result::OK;
+ if (event.sensorType == SensorType::ADDITIONAL_INFO) {
+ // When in OperationMode::NORMAL, SensorType::ADDITIONAL_INFO is used to push operation
+ // environment data into the device.
+ } else if (!supportsDataInjection()) {
+ result = Result::INVALID_OPERATION;
+ } else if (mMode == OperationMode::DATA_INJECTION) {
+ mCallback->postEvents(std::vector<Event>{event}, isWakeUpSensor());
+ } else {
+ result = Result::BAD_VALUE;
+ }
+ return result;
+}
+
+OnChangeSensor::OnChangeSensor(ISensorsEventCallback* callback)
+ : Sensor(callback), mPreviousEventSet(false) {}
+
+void OnChangeSensor::activate(bool enable) {
+ Sensor::activate(enable);
+ if (!enable) {
+ mPreviousEventSet = false;
+ }
+}
+
+std::vector<Event> OnChangeSensor::readEvents() {
+ std::vector<Event> events = Sensor::readEvents();
+ std::vector<Event> outputEvents;
+
+ for (auto iter = events.begin(); iter != events.end(); ++iter) {
+ Event ev = *iter;
+ if (ev.u.vec3 != mPreviousEvent.u.vec3 || !mPreviousEventSet) {
+ outputEvents.push_back(ev);
+ mPreviousEvent = ev;
+ mPreviousEventSet = true;
+ }
+ }
+ return outputEvents;
+}
+
+AccelSensor::AccelSensor(int32_t sensorHandle, ISensorsEventCallback* callback) : Sensor(callback) {
+ mSensorInfo.sensorHandle = sensorHandle;
+ mSensorInfo.name = "Accel Sensor";
+ mSensorInfo.vendor = "Vendor String";
+ mSensorInfo.version = 1;
+ mSensorInfo.type = SensorType::ACCELEROMETER;
+ mSensorInfo.typeAsString = "";
+ mSensorInfo.maxRange = 78.4f; // +/- 8g
+ mSensorInfo.resolution = 1.52e-5;
+ mSensorInfo.power = 0.001f; // mA
+ mSensorInfo.minDelay = 20 * 1000; // microseconds
+ mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+ mSensorInfo.fifoReservedEventCount = 0;
+ mSensorInfo.fifoMaxEventCount = 0;
+ mSensorInfo.requiredPermission = "";
+ mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::DATA_INJECTION);
+};
+
+PressureSensor::PressureSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+ : Sensor(callback) {
+ mSensorInfo.sensorHandle = sensorHandle;
+ mSensorInfo.name = "Pressure Sensor";
+ mSensorInfo.vendor = "Vendor String";
+ mSensorInfo.version = 1;
+ mSensorInfo.type = SensorType::PRESSURE;
+ mSensorInfo.typeAsString = "";
+ mSensorInfo.maxRange = 1100.0f; // hPa
+ mSensorInfo.resolution = 0.005f; // hPa
+ mSensorInfo.power = 0.001f; // mA
+ mSensorInfo.minDelay = 100 * 1000; // microseconds
+ mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+ mSensorInfo.fifoReservedEventCount = 0;
+ mSensorInfo.fifoMaxEventCount = 0;
+ mSensorInfo.requiredPermission = "";
+ mSensorInfo.flags = 0;
+};
+
+MagnetometerSensor::MagnetometerSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+ : Sensor(callback) {
+ mSensorInfo.sensorHandle = sensorHandle;
+ mSensorInfo.name = "Magnetic Field Sensor";
+ mSensorInfo.vendor = "Vendor String";
+ mSensorInfo.version = 1;
+ mSensorInfo.type = SensorType::MAGNETIC_FIELD;
+ mSensorInfo.typeAsString = "";
+ mSensorInfo.maxRange = 1300.0f;
+ mSensorInfo.resolution = 0.01f;
+ mSensorInfo.power = 0.001f; // mA
+ mSensorInfo.minDelay = 20 * 1000; // microseconds
+ mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+ mSensorInfo.fifoReservedEventCount = 0;
+ mSensorInfo.fifoMaxEventCount = 0;
+ mSensorInfo.requiredPermission = "";
+ mSensorInfo.flags = 0;
+};
+
+LightSensor::LightSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+ : OnChangeSensor(callback) {
+ mSensorInfo.sensorHandle = sensorHandle;
+ mSensorInfo.name = "Light Sensor";
+ mSensorInfo.vendor = "Vendor String";
+ mSensorInfo.version = 1;
+ mSensorInfo.type = SensorType::LIGHT;
+ mSensorInfo.typeAsString = "";
+ mSensorInfo.maxRange = 43000.0f;
+ mSensorInfo.resolution = 10.0f;
+ mSensorInfo.power = 0.001f; // mA
+ mSensorInfo.minDelay = 200 * 1000; // microseconds
+ mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+ mSensorInfo.fifoReservedEventCount = 0;
+ mSensorInfo.fifoMaxEventCount = 0;
+ mSensorInfo.requiredPermission = "";
+ mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
+};
+
+ProximitySensor::ProximitySensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+ : OnChangeSensor(callback) {
+ mSensorInfo.sensorHandle = sensorHandle;
+ mSensorInfo.name = "Proximity Sensor";
+ mSensorInfo.vendor = "Vendor String";
+ mSensorInfo.version = 1;
+ mSensorInfo.type = SensorType::PROXIMITY;
+ mSensorInfo.typeAsString = "";
+ mSensorInfo.maxRange = 5.0f;
+ mSensorInfo.resolution = 1.0f;
+ mSensorInfo.power = 0.012f; // mA
+ mSensorInfo.minDelay = 200 * 1000; // microseconds
+ mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+ mSensorInfo.fifoReservedEventCount = 0;
+ mSensorInfo.fifoMaxEventCount = 0;
+ mSensorInfo.requiredPermission = "";
+ mSensorInfo.flags =
+ static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE | SensorFlagBits::WAKE_UP);
+};
+
+GyroSensor::GyroSensor(int32_t sensorHandle, ISensorsEventCallback* callback) : Sensor(callback) {
+ mSensorInfo.sensorHandle = sensorHandle;
+ mSensorInfo.name = "Gyro Sensor";
+ mSensorInfo.vendor = "Vendor String";
+ mSensorInfo.version = 1;
+ mSensorInfo.type = SensorType::GYROSCOPE;
+ mSensorInfo.typeAsString = "";
+ mSensorInfo.maxRange = 1000.0f * M_PI / 180.0f;
+ mSensorInfo.resolution = 1000.0f * M_PI / (180.0f * 32768.0f);
+ mSensorInfo.power = 0.001f;
+ mSensorInfo.minDelay = 2.5f * 1000; // microseconds
+ mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+ mSensorInfo.fifoReservedEventCount = 0;
+ mSensorInfo.fifoMaxEventCount = 0;
+ mSensorInfo.requiredPermission = "";
+ mSensorInfo.flags = 0;
+};
+
+AmbientTempSensor::AmbientTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+ : OnChangeSensor(callback) {
+ mSensorInfo.sensorHandle = sensorHandle;
+ mSensorInfo.name = "Ambient Temp Sensor";
+ mSensorInfo.vendor = "Vendor String";
+ mSensorInfo.version = 1;
+ mSensorInfo.type = SensorType::AMBIENT_TEMPERATURE;
+ mSensorInfo.typeAsString = "";
+ mSensorInfo.maxRange = 80.0f;
+ mSensorInfo.resolution = 0.01f;
+ mSensorInfo.power = 0.001f;
+ mSensorInfo.minDelay = 40 * 1000; // microseconds
+ mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+ mSensorInfo.fifoReservedEventCount = 0;
+ mSensorInfo.fifoMaxEventCount = 0;
+ mSensorInfo.requiredPermission = "";
+ mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
+};
+
+DeviceTempSensor::DeviceTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+ : OnChangeSensor(callback) {
+ mSensorInfo.sensorHandle = sensorHandle;
+ mSensorInfo.name = "Device Temp Sensor";
+ mSensorInfo.vendor = "Vendor String";
+ mSensorInfo.version = 1;
+ mSensorInfo.type = SensorType::TEMPERATURE;
+ mSensorInfo.typeAsString = "";
+ mSensorInfo.maxRange = 80.0f;
+ mSensorInfo.resolution = 0.01f;
+ mSensorInfo.power = 0.001f;
+ mSensorInfo.minDelay = 40 * 1000; // microseconds
+ mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+ mSensorInfo.fifoReservedEventCount = 0;
+ mSensorInfo.fifoMaxEventCount = 0;
+ mSensorInfo.requiredPermission = "";
+ mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
+}
+
+RelativeHumiditySensor::RelativeHumiditySensor(int32_t sensorHandle,
+ ISensorsEventCallback* callback)
+ : OnChangeSensor(callback) {
+ mSensorInfo.sensorHandle = sensorHandle;
+ mSensorInfo.name = "Relative Humidity Sensor";
+ mSensorInfo.vendor = "Vendor String";
+ mSensorInfo.version = 1;
+ mSensorInfo.type = SensorType::RELATIVE_HUMIDITY;
+ mSensorInfo.typeAsString = "";
+ mSensorInfo.maxRange = 100.0f;
+ mSensorInfo.resolution = 0.1f;
+ mSensorInfo.power = 0.001f;
+ mSensorInfo.minDelay = 40 * 1000; // microseconds
+ mSensorInfo.maxDelay = kDefaultMaxDelayUs;
+ mSensorInfo.fifoReservedEventCount = 0;
+ mSensorInfo.fifoMaxEventCount = 0;
+ mSensorInfo.requiredPermission = "";
+ mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
+}
+
+} // namespace implementation
+} // namespace subhal
+} // namespace V2_0
+} // namespace sensors
+} // namespace hardware
+} // namespace android
diff --git a/sensors/2.0/multihal/testing/Sensor.h b/sensors/2.0/multihal/testing/Sensor.h
new file mode 100644
index 0000000..980ea54
--- /dev/null
+++ b/sensors/2.0/multihal/testing/Sensor.h
@@ -0,0 +1,146 @@
+/*
+ * 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 <android/hardware/sensors/1.0/types.h>
+
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+#include <thread>
+#include <vector>
+
+using ::android::hardware::sensors::V1_0::Event;
+using ::android::hardware::sensors::V1_0::OperationMode;
+using ::android::hardware::sensors::V1_0::Result;
+using ::android::hardware::sensors::V1_0::SensorInfo;
+using ::android::hardware::sensors::V1_0::SensorType;
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace subhal {
+namespace implementation {
+
+class ISensorsEventCallback {
+ public:
+ virtual ~ISensorsEventCallback(){};
+ virtual void postEvents(const std::vector<Event>& events, bool wakeup) = 0;
+};
+
+class Sensor {
+ public:
+ Sensor(ISensorsEventCallback* callback);
+ virtual ~Sensor();
+
+ const SensorInfo& getSensorInfo() const;
+ void batch(int32_t samplingPeriodNs);
+ virtual void activate(bool enable);
+ Result flush();
+
+ void setOperationMode(OperationMode mode);
+ bool supportsDataInjection() const;
+ Result injectEvent(const Event& event);
+
+ protected:
+ void run();
+ virtual std::vector<Event> readEvents();
+ static void startThread(Sensor* sensor);
+
+ bool isWakeUpSensor();
+
+ bool mIsEnabled;
+ int64_t mSamplingPeriodNs;
+ int64_t mLastSampleTimeNs;
+ SensorInfo mSensorInfo;
+
+ std::atomic_bool mStopThread;
+ std::condition_variable mWaitCV;
+ std::mutex mRunMutex;
+ std::thread mRunThread;
+
+ ISensorsEventCallback* mCallback;
+
+ OperationMode mMode;
+};
+
+class OnChangeSensor : public Sensor {
+ public:
+ OnChangeSensor(ISensorsEventCallback* callback);
+
+ virtual void activate(bool enable) override;
+
+ protected:
+ virtual std::vector<Event> readEvents() override;
+
+ protected:
+ Event mPreviousEvent;
+ bool mPreviousEventSet;
+};
+
+class AccelSensor : public Sensor {
+ public:
+ AccelSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class GyroSensor : public Sensor {
+ public:
+ GyroSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class AmbientTempSensor : public OnChangeSensor {
+ public:
+ AmbientTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class DeviceTempSensor : public OnChangeSensor {
+ public:
+ DeviceTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class PressureSensor : public Sensor {
+ public:
+ PressureSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class MagnetometerSensor : public Sensor {
+ public:
+ MagnetometerSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class LightSensor : public OnChangeSensor {
+ public:
+ LightSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class ProximitySensor : public OnChangeSensor {
+ public:
+ ProximitySensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+class RelativeHumiditySensor : public OnChangeSensor {
+ public:
+ RelativeHumiditySensor(int32_t sensorHandle, ISensorsEventCallback* callback);
+};
+
+} // namespace implementation
+} // namespace subhal
+} // namespace V2_0
+} // namespace sensors
+} // namespace hardware
+} // namespace android
diff --git a/sensors/2.0/multihal/testing/SensorsSubHal.cpp b/sensors/2.0/multihal/testing/SensorsSubHal.cpp
new file mode 100644
index 0000000..8d45982
--- /dev/null
+++ b/sensors/2.0/multihal/testing/SensorsSubHal.cpp
@@ -0,0 +1,179 @@
+/*
+ * 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 "SensorsSubHal.h"
+
+#include <android/hardware/sensors/2.0/types.h>
+#include <log/log.h>
+
+ISensorsSubHal* sensorsHalGetSubHal(uint32_t* version) {
+ static ::android::hardware::sensors::V2_0::subhal::implementation::SensorsSubHal subHal;
+ *version = SUB_HAL_2_0_VERSION;
+ return &subHal;
+}
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace subhal {
+namespace implementation {
+
+using ::android::hardware::Void;
+using ::android::hardware::sensors::V1_0::Event;
+using ::android::hardware::sensors::V1_0::OperationMode;
+using ::android::hardware::sensors::V1_0::RateLevel;
+using ::android::hardware::sensors::V1_0::Result;
+using ::android::hardware::sensors::V1_0::SharedMemInfo;
+using ::android::hardware::sensors::V2_0::SensorTimeout;
+using ::android::hardware::sensors::V2_0::WakeLockQueueFlagBits;
+using ::android::hardware::sensors::V2_0::implementation::ScopedWakelock;
+
+SensorsSubHal::SensorsSubHal() : mCallback(nullptr), mNextHandle(1) {
+#ifdef SUPPORT_CONTINUOUS_SENSORS
+ AddSensor<AccelSensor>();
+ AddSensor<GyroSensor>();
+ AddSensor<MagnetometerSensor>();
+ AddSensor<PressureSensor>();
+#endif // SUPPORT_CONTINUOUS_SENSORS
+
+#ifdef SUPPORT_ON_CHANGE_SENSORS
+ AddSensor<AmbientTempSensor>();
+ AddSensor<DeviceTempSensor>();
+ AddSensor<LightSensor>();
+ AddSensor<ProximitySensor>();
+ AddSensor<RelativeHumiditySensor>();
+#endif // SUPPORT_ON_CHANGE_SENSORS
+}
+
+// Methods from ::android::hardware::sensors::V2_0::ISensors follow.
+Return<void> SensorsSubHal::getSensorsList(getSensorsList_cb _hidl_cb) {
+ std::vector<SensorInfo> sensors;
+ for (const auto& sensor : mSensors) {
+ sensors.push_back(sensor.second->getSensorInfo());
+ }
+
+ _hidl_cb(sensors);
+ return Void();
+}
+
+Return<Result> SensorsSubHal::setOperationMode(OperationMode mode) {
+ for (auto sensor : mSensors) {
+ sensor.second->setOperationMode(mode);
+ }
+ return Result::OK;
+}
+
+Return<Result> SensorsSubHal::activate(int32_t sensorHandle, bool enabled) {
+ auto sensor = mSensors.find(sensorHandle);
+ if (sensor != mSensors.end()) {
+ sensor->second->activate(enabled);
+ return Result::OK;
+ }
+ return Result::BAD_VALUE;
+}
+
+Return<Result> SensorsSubHal::batch(int32_t sensorHandle, int64_t samplingPeriodNs,
+ int64_t /* maxReportLatencyNs */) {
+ auto sensor = mSensors.find(sensorHandle);
+ if (sensor != mSensors.end()) {
+ sensor->second->batch(samplingPeriodNs);
+ return Result::OK;
+ }
+ return Result::BAD_VALUE;
+}
+
+Return<Result> SensorsSubHal::flush(int32_t sensorHandle) {
+ auto sensor = mSensors.find(sensorHandle);
+ if (sensor != mSensors.end()) {
+ return sensor->second->flush();
+ }
+ return Result::BAD_VALUE;
+}
+
+Return<Result> SensorsSubHal::injectSensorData(const Event& event) {
+ auto sensor = mSensors.find(event.sensorHandle);
+ if (sensor != mSensors.end()) {
+ return sensor->second->injectEvent(event);
+ }
+
+ return Result::BAD_VALUE;
+}
+
+Return<void> SensorsSubHal::registerDirectChannel(const SharedMemInfo& /* mem */,
+ registerDirectChannel_cb _hidl_cb) {
+ _hidl_cb(Result::INVALID_OPERATION, -1 /* channelHandle */);
+ return Return<void>();
+}
+
+Return<Result> SensorsSubHal::unregisterDirectChannel(int32_t /* channelHandle */) {
+ return Result::INVALID_OPERATION;
+}
+
+Return<void> SensorsSubHal::configDirectReport(int32_t /* sensorHandle */,
+ int32_t /* channelHandle */, RateLevel /* rate */,
+ configDirectReport_cb _hidl_cb) {
+ _hidl_cb(Result::INVALID_OPERATION, 0 /* reportToken */);
+ return Return<void>();
+}
+
+Return<void> SensorsSubHal::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& args) {
+ if (fd.getNativeHandle() == nullptr || fd->numFds < 1) {
+ ALOGE("%s: missing fd for writing", __FUNCTION__);
+ return Void();
+ }
+
+ FILE* out = fdopen(dup(fd->data[0]), "w");
+
+ if (args.size() != 0) {
+ fprintf(out,
+ "Note: sub-HAL %s currently does not support args. Input arguments are "
+ "ignored.\n",
+ getName().c_str());
+ }
+
+ std::ostringstream stream;
+ stream << "Available sensors:" << std::endl;
+ for (auto sensor : mSensors) {
+ SensorInfo info = sensor.second->getSensorInfo();
+ stream << "Name: " << info.name << std::endl;
+ stream << "Min delay: " << info.minDelay << std::endl;
+ stream << "Flags: " << info.flags << std::endl;
+ }
+ stream << std::endl;
+
+ fprintf(out, "%s", stream.str().c_str());
+
+ fclose(out);
+ return Return<void>();
+}
+
+Return<Result> SensorsSubHal::initialize(const sp<IHalProxyCallback>& halProxyCallback) {
+ mCallback = halProxyCallback;
+ return Result::OK;
+}
+
+void SensorsSubHal::postEvents(const std::vector<Event>& events, bool wakeup) {
+ ScopedWakelock wakelock = mCallback->createScopedWakelock(wakeup);
+ mCallback->postEvents(events, std::move(wakelock));
+}
+
+} // namespace implementation
+} // namespace subhal
+} // namespace V2_0
+} // namespace sensors
+} // namespace hardware
+} // namespace android
diff --git a/sensors/2.0/multihal/testing/SensorsSubHal.h b/sensors/2.0/multihal/testing/SensorsSubHal.h
new file mode 100644
index 0000000..93009d5
--- /dev/null
+++ b/sensors/2.0/multihal/testing/SensorsSubHal.h
@@ -0,0 +1,115 @@
+/*
+ * 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 "SubHal.h"
+
+#include "Sensor.h"
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace subhal {
+namespace implementation {
+
+using ::android::hardware::sensors::V2_0::implementation::IHalProxyCallback;
+
+/**
+ * Implementation of a ISensorsSubHal that can be used to test the implementation of multihal 2.0.
+ * See the README file for more details on how this class can be used for testing.
+ */
+class SensorsSubHal : public ISensorsSubHal, public ISensorsEventCallback {
+ using Event = ::android::hardware::sensors::V1_0::Event;
+ using OperationMode = ::android::hardware::sensors::V1_0::OperationMode;
+ using RateLevel = ::android::hardware::sensors::V1_0::RateLevel;
+ using Result = ::android::hardware::sensors::V1_0::Result;
+ using SharedMemInfo = ::android::hardware::sensors::V1_0::SharedMemInfo;
+
+ public:
+ SensorsSubHal();
+
+ // Methods from ::android::hardware::sensors::V2_0::ISensors follow.
+ Return<void> getSensorsList(getSensorsList_cb _hidl_cb) override;
+
+ Return<Result> setOperationMode(OperationMode mode) override;
+
+ Return<Result> activate(int32_t sensorHandle, bool enabled) override;
+
+ Return<Result> batch(int32_t sensorHandle, int64_t samplingPeriodNs,
+ int64_t maxReportLatencyNs) override;
+
+ Return<Result> flush(int32_t sensorHandle) override;
+
+ Return<Result> injectSensorData(const Event& event) override;
+
+ Return<void> registerDirectChannel(const SharedMemInfo& mem,
+ registerDirectChannel_cb _hidl_cb) override;
+
+ Return<Result> unregisterDirectChannel(int32_t channelHandle) override;
+
+ Return<void> configDirectReport(int32_t sensorHandle, int32_t channelHandle, RateLevel rate,
+ configDirectReport_cb _hidl_cb) override;
+
+ Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& args) override;
+
+ // Methods from ::android::hardware::sensors::V2_0::implementation::ISensorsSubHal follow.
+ const std::string getName() override {
+#ifdef SUB_HAL_NAME
+ return SUB_HAL_NAME;
+#else // SUB_HAL_NAME
+ return "FakeSubHal";
+#endif // SUB_HAL_NAME
+ }
+
+ Return<Result> initialize(const sp<IHalProxyCallback>& halProxyCallback) override;
+
+ // Method from ISensorsEventCallback.
+ void postEvents(const std::vector<Event>& events, bool wakeup) override;
+
+ private:
+ template <class SensorType>
+ void AddSensor() {
+ std::shared_ptr<SensorType> sensor =
+ std::make_shared<SensorType>(mNextHandle++ /* sensorHandle */, this /* callback */);
+ mSensors[sensor->getSensorInfo().sensorHandle] = sensor;
+ }
+
+ /**
+ * Callback used to communicate to the HalProxy when dynamic sensors are connected /
+ * disconnected, sensor events need to be sent to the framework, and when a wakelock should be
+ * acquired.
+ */
+ sp<IHalProxyCallback> mCallback;
+
+ /**
+ * A map of the available sensors
+ */
+ std::map<int32_t, std::shared_ptr<Sensor>> mSensors;
+
+ /**
+ * The next available sensor handle
+ */
+ int32_t mNextHandle;
+};
+
+} // namespace implementation
+} // namespace subhal
+} // namespace V2_0
+} // namespace sensors
+} // namespace hardware
+} // namespace android