Vehicle HAL reference impl Part I
Implemented:
- defined VehicleHal
- object pool for VehiclePropValue objects
- batching of vehicle HAL events
- subscription management
Test: unit tests provided
Bug: b/31971746
Change-Id: Idd2d0aee7b32a975c3db54812be235e13f52905a
diff --git a/vehicle/2.0/default/impl/DefaultConfig.h b/vehicle/2.0/default/impl/DefaultConfig.h
new file mode 100644
index 0000000..6f04626
--- /dev/null
+++ b/vehicle/2.0/default/impl/DefaultConfig.h
@@ -0,0 +1,91 @@
+/*
+ * 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.
+ */
+
+#ifndef android_hardware_vehicle_V2_0_impl_DefaultConfig_H_
+#define android_hardware_vehicle_V2_0_impl_DefaultConfig_H_
+
+#include <android/hardware/vehicle/2.0/IVehicle.h>
+
+namespace android {
+namespace hardware {
+namespace vehicle {
+namespace V2_0 {
+
+namespace impl {
+
+const VehiclePropConfig kVehicleProperties[] = {
+ {
+ .prop = VehicleProperty::INFO_MAKE,
+ .access = VehiclePropertyAccess::READ,
+ .changeMode = VehiclePropertyChangeMode::STATIC,
+ .permissionModel = VehiclePermissionModel::OEM_ONLY,
+ },
+
+ {
+ .prop = VehicleProperty::HVAC_FAN_SPEED,
+ .access = VehiclePropertyAccess::READ_WRITE,
+ .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+ .permissionModel = VehiclePermissionModel::NO_RESTRICTION,
+ .supportedAreas = static_cast<int32_t>(
+ VehicleAreaZone::ROW_1_LEFT | VehicleAreaZone::ROW_1_RIGHT),
+ .areaConfigs = init_hidl_vec({
+ VehicleAreaConfig {
+ .areaId = val(VehicleAreaZone::ROW_2_LEFT),
+ .minInt32Value = 1,
+ .maxInt32Value = 7},
+ VehicleAreaConfig {
+ .areaId = val(VehicleAreaZone::ROW_1_RIGHT),
+ .minInt32Value = 1,
+ .maxInt32Value = 5,
+ }
+ }),
+ },
+
+ {
+ .prop = VehicleProperty::INFO_FUEL_CAPACITY,
+ .access = VehiclePropertyAccess::READ,
+ .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+ .permissionModel = VehiclePermissionModel::OEM_ONLY,
+ .areaConfigs = init_hidl_vec({
+ VehicleAreaConfig {
+ .minFloatValue = 0,
+ .maxFloatValue = 1.0
+ }
+ })
+ },
+
+ {
+ .prop = VehicleProperty::DISPLAY_BRIGHTNESS,
+ .access = VehiclePropertyAccess::READ_WRITE,
+ .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+ .permissionModel = VehiclePermissionModel::OEM_ONLY,
+ .areaConfigs = init_hidl_vec({
+ VehicleAreaConfig {
+ .minInt32Value = 0,
+ .maxInt32Value = 10
+ }
+ })
+ }
+};
+
+} // impl
+
+} // namespace V2_0
+} // namespace vehicle
+} // namespace hardware
+} // namespace android
+
+#endif // android_hardware_vehicle_V2_0_impl_DefaultConfig_H_
diff --git a/vehicle/2.0/default/impl/DefaultVehicleHal.cpp b/vehicle/2.0/default/impl/DefaultVehicleHal.cpp
new file mode 100644
index 0000000..6ca0f9f
--- /dev/null
+++ b/vehicle/2.0/default/impl/DefaultVehicleHal.cpp
@@ -0,0 +1,110 @@
+/*
+ * 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.
+ */
+
+#include "DefaultVehicleHal.h"
+
+namespace android {
+namespace hardware {
+namespace vehicle {
+namespace V2_0 {
+
+namespace impl {
+
+VehicleHal::VehiclePropValuePtr DefaultVehicleHal::get(VehicleProperty property,
+ int32_t areaId,
+ status_t* outStatus) {
+ *outStatus = OK;
+
+ VehiclePropValuePtr v;
+
+ switch (property) {
+ case VehicleProperty::INFO_MAKE:
+ v = getValuePool()->obtainString("Default Car");
+ break;
+ case VehicleProperty::HVAC_FAN_SPEED:
+ int32_t value;
+ if ((*outStatus = getHvacFanSpeed(areaId, &value)) == OK) {
+ v = getValuePool()->obtainInt32(value);
+ }
+ break;
+ case VehicleProperty::INFO_FUEL_CAPACITY:
+ v = getValuePool()->obtainFloat(0.75f);
+ break;
+ case VehicleProperty::DISPLAY_BRIGHTNESS:
+ v = getValuePool()->obtainInt32(brightness);
+ break;
+ default:
+ *outStatus = BAD_VALUE;
+ }
+
+ if (*outStatus == OK && v.get() != nullptr) {
+ v->prop = property;
+ v->areaId = areaId;
+ v->timestamp = elapsedRealtimeNano();
+ }
+
+ return v;
+}
+
+status_t DefaultVehicleHal::set(const VehiclePropValue& propValue) {
+ auto property = propValue.prop;
+
+ status_t status = OK;
+
+ switch (property) {
+ case VehicleProperty::HVAC_FAN_SPEED:
+ status = setHvacFanSpeed(propValue.areaId,
+ propValue.value.int32Values[0]);
+ break;
+ case VehicleProperty::DISPLAY_BRIGHTNESS:
+ brightness = propValue.value.int32Values[0];
+ break;
+ default:
+ status = BAD_VALUE;
+ }
+
+ return status;
+}
+
+status_t DefaultVehicleHal::getHvacFanSpeed(int32_t areaId,
+ int32_t* outValue) {
+ if (areaId == val(VehicleAreaZone::ROW_1_LEFT)) {
+ *outValue = fanSpeedRow1Left;
+ } else if (areaId == val(VehicleAreaZone::ROW_2_RIGHT)) {
+ *outValue = fanSpeedRow1Right;
+ } else {
+ return BAD_VALUE;
+ }
+ return OK;
+}
+
+status_t DefaultVehicleHal::setHvacFanSpeed(int32_t areaId, int32_t value) {
+ if (areaId == val(VehicleAreaZone::ROW_1_LEFT)) {
+ fanSpeedRow1Left = value;
+ } else if (areaId == val(VehicleAreaZone::ROW_2_RIGHT)) {
+ fanSpeedRow1Right = value;
+ } else {
+ return BAD_VALUE;
+ }
+ return OK;
+}
+
+} // impl
+
+} // namespace V2_0
+} // namespace vehicle
+} // namespace hardware
+} // namespace android
diff --git a/vehicle/2.0/default/impl/DefaultVehicleHal.h b/vehicle/2.0/default/impl/DefaultVehicleHal.h
new file mode 100644
index 0000000..7d0b7cb
--- /dev/null
+++ b/vehicle/2.0/default/impl/DefaultVehicleHal.h
@@ -0,0 +1,73 @@
+/*
+ * 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.
+ */
+
+#ifndef android_hardware_vehicle_V2_0_impl_DefaultVehicleHal_H_
+#define android_hardware_vehicle_V2_0_impl_DefaultVehicleHal_H_
+
+#include <VehicleHal.h>
+#include <impl/DefaultConfig.h>
+#include <utils/SystemClock.h>
+
+namespace android {
+namespace hardware {
+namespace vehicle {
+namespace V2_0 {
+
+namespace impl {
+
+class DefaultVehicleHal : public VehicleHal {
+public:
+ std::vector<VehiclePropConfig> listProperties() override {
+ return std::vector<VehiclePropConfig>(std::begin(kVehicleProperties),
+ std::end(kVehicleProperties));
+ }
+
+ VehiclePropValuePtr get(VehicleProperty property,
+ int32_t areaId,
+ status_t* outStatus) override;
+
+ status_t set(const VehiclePropValue& propValue) override;
+
+ status_t subscribe(VehicleProperty property,
+ int32_t areas,
+ float sampleRate) {
+ // TODO(pavelm): implement
+ return OK;
+ }
+
+ status_t unsubscribe(VehicleProperty property) {
+ // TODO(pavelm): implement
+ return OK;
+ }
+
+private:
+ status_t getHvacFanSpeed(int32_t areaId, int32_t* outValue);
+ status_t setHvacFanSpeed(int32_t areaId, int32_t value);
+private:
+ int32_t fanSpeedRow1Left = 3;
+ int32_t fanSpeedRow1Right = 5;
+ int32_t brightness = 7;
+};
+
+} // impl
+
+} // namespace V2_0
+} // namespace vehicle
+} // namespace hardware
+} // namespace android
+
+
+#endif // android_hardware_vehicle_V2_0_impl_DefaultVehicleHal_H_