blob: f10ba44d745d0d64b96e8ccfd78122e9f91ba208 [file] [log] [blame]
/*
* Copyright (C) 2020 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 "VibratorHalWrapper"
#include <android/hardware/vibrator/1.3/IVibrator.h>
#include <android/hardware/vibrator/IVibrator.h>
#include <hardware/vibrator.h>
#include <cmath>
#include <utils/Log.h>
#include <vibratorservice/VibratorCallbackScheduler.h>
#include <vibratorservice/VibratorHalWrapper.h>
using android::hardware::vibrator::Braking;
using android::hardware::vibrator::CompositeEffect;
using android::hardware::vibrator::CompositePrimitive;
using android::hardware::vibrator::Effect;
using android::hardware::vibrator::EffectStrength;
using android::hardware::vibrator::PrimitivePwle;
using std::chrono::milliseconds;
namespace V1_0 = android::hardware::vibrator::V1_0;
namespace V1_1 = android::hardware::vibrator::V1_1;
namespace V1_2 = android::hardware::vibrator::V1_2;
namespace V1_3 = android::hardware::vibrator::V1_3;
namespace Aidl = android::hardware::vibrator;
namespace android {
namespace vibrator {
// -------------------------------------------------------------------------------------------------
template <class T>
bool isStaticCastValid(Effect effect) {
T castEffect = static_cast<T>(effect);
auto iter = hardware::hidl_enum_range<T>();
return castEffect >= *iter.begin() && castEffect <= *std::prev(iter.end());
}
// -------------------------------------------------------------------------------------------------
Info HalWrapper::getInfo() {
getCapabilities();
getPrimitiveDurations();
std::lock_guard<std::mutex> lock(mInfoMutex);
if (mInfoCache.mSupportedEffects.isFailed()) {
mInfoCache.mSupportedEffects = getSupportedEffectsInternal();
}
if (mInfoCache.mSupportedBraking.isFailed()) {
mInfoCache.mSupportedBraking = getSupportedBrakingInternal();
}
if (mInfoCache.mPrimitiveDelayMax.isFailed()) {
mInfoCache.mPrimitiveDelayMax = getPrimitiveDelayMaxInternal();
}
if (mInfoCache.mPwlePrimitiveDurationMax.isFailed()) {
mInfoCache.mPwlePrimitiveDurationMax = getPrimitiveDurationMaxInternal();
}
if (mInfoCache.mCompositionSizeMax.isFailed()) {
mInfoCache.mCompositionSizeMax = getCompositionSizeMaxInternal();
}
if (mInfoCache.mPwleSizeMax.isFailed()) {
mInfoCache.mPwleSizeMax = getPwleSizeMaxInternal();
}
if (mInfoCache.mMinFrequency.isFailed()) {
mInfoCache.mMinFrequency = getMinFrequencyInternal();
}
if (mInfoCache.mResonantFrequency.isFailed()) {
mInfoCache.mResonantFrequency = getResonantFrequencyInternal();
}
if (mInfoCache.mFrequencyResolution.isFailed()) {
mInfoCache.mFrequencyResolution = getFrequencyResolutionInternal();
}
if (mInfoCache.mQFactor.isFailed()) {
mInfoCache.mQFactor = getQFactorInternal();
}
if (mInfoCache.mMaxAmplitudes.isFailed()) {
mInfoCache.mMaxAmplitudes = getMaxAmplitudesInternal();
}
return mInfoCache.get();
}
HalResult<milliseconds> HalWrapper::performComposedEffect(const std::vector<CompositeEffect>&,
const std::function<void()>&) {
ALOGV("Skipped performComposedEffect because it's not available in Vibrator HAL");
return HalResult<milliseconds>::unsupported();
}
HalResult<void> HalWrapper::performPwleEffect(const std::vector<PrimitivePwle>&,
const std::function<void()>&) {
ALOGV("Skipped performPwleEffect because it's not available in Vibrator HAL");
return HalResult<void>::unsupported();
}
HalResult<Capabilities> HalWrapper::getCapabilities() {
std::lock_guard<std::mutex> lock(mInfoMutex);
if (mInfoCache.mCapabilities.isFailed()) {
mInfoCache.mCapabilities = getCapabilitiesInternal();
}
return mInfoCache.mCapabilities;
}
HalResult<std::vector<milliseconds>> HalWrapper::getPrimitiveDurations() {
std::lock_guard<std::mutex> lock(mInfoMutex);
if (mInfoCache.mSupportedPrimitives.isFailed()) {
mInfoCache.mSupportedPrimitives = getSupportedPrimitivesInternal();
if (mInfoCache.mSupportedPrimitives.isUnsupported()) {
mInfoCache.mPrimitiveDurations = HalResult<std::vector<milliseconds>>::unsupported();
}
}
if (mInfoCache.mPrimitiveDurations.isFailed() && mInfoCache.mSupportedPrimitives.isOk()) {
mInfoCache.mPrimitiveDurations =
getPrimitiveDurationsInternal(mInfoCache.mSupportedPrimitives.value());
}
return mInfoCache.mPrimitiveDurations;
}
HalResult<std::vector<Effect>> HalWrapper::getSupportedEffectsInternal() {
ALOGV("Skipped getSupportedEffects because it's not available in Vibrator HAL");
return HalResult<std::vector<Effect>>::unsupported();
}
HalResult<std::vector<Braking>> HalWrapper::getSupportedBrakingInternal() {
ALOGV("Skipped getSupportedBraking because it's not available in Vibrator HAL");
return HalResult<std::vector<Braking>>::unsupported();
}
HalResult<std::vector<CompositePrimitive>> HalWrapper::getSupportedPrimitivesInternal() {
ALOGV("Skipped getSupportedPrimitives because it's not available in Vibrator HAL");
return HalResult<std::vector<CompositePrimitive>>::unsupported();
}
HalResult<std::vector<milliseconds>> HalWrapper::getPrimitiveDurationsInternal(
const std::vector<CompositePrimitive>&) {
ALOGV("Skipped getPrimitiveDurations because it's not available in Vibrator HAL");
return HalResult<std::vector<milliseconds>>::unsupported();
}
HalResult<milliseconds> HalWrapper::getPrimitiveDelayMaxInternal() {
ALOGV("Skipped getPrimitiveDelayMaxInternal because it's not available in Vibrator HAL");
return HalResult<milliseconds>::unsupported();
}
HalResult<milliseconds> HalWrapper::getPrimitiveDurationMaxInternal() {
ALOGV("Skipped getPrimitiveDurationMaxInternal because it's not available in Vibrator HAL");
return HalResult<milliseconds>::unsupported();
}
HalResult<int32_t> HalWrapper::getCompositionSizeMaxInternal() {
ALOGV("Skipped getCompositionSizeMaxInternal because it's not available in Vibrator HAL");
return HalResult<int32_t>::unsupported();
}
HalResult<int32_t> HalWrapper::getPwleSizeMaxInternal() {
ALOGV("Skipped getPwleSizeMaxInternal because it's not available in Vibrator HAL");
return HalResult<int32_t>::unsupported();
}
HalResult<float> HalWrapper::getMinFrequencyInternal() {
ALOGV("Skipped getMinFrequency because it's not available in Vibrator HAL");
return HalResult<float>::unsupported();
}
HalResult<float> HalWrapper::getResonantFrequencyInternal() {
ALOGV("Skipped getResonantFrequency because it's not available in Vibrator HAL");
return HalResult<float>::unsupported();
}
HalResult<float> HalWrapper::getFrequencyResolutionInternal() {
ALOGV("Skipped getFrequencyResolution because it's not available in Vibrator HAL");
return HalResult<float>::unsupported();
}
HalResult<float> HalWrapper::getQFactorInternal() {
ALOGV("Skipped getQFactor because it's not available in Vibrator HAL");
return HalResult<float>::unsupported();
}
HalResult<std::vector<float>> HalWrapper::getMaxAmplitudesInternal() {
ALOGV("Skipped getMaxAmplitudes because it's not available in Vibrator HAL");
return HalResult<std::vector<float>>::unsupported();
}
// -------------------------------------------------------------------------------------------------
HalResult<void> AidlHalWrapper::ping() {
return HalResultFactory::fromStatus(IInterface::asBinder(getHal())->pingBinder());
}
void AidlHalWrapper::tryReconnect() {
auto result = mReconnectFn();
if (!result.isOk()) {
return;
}
sp<Aidl::IVibrator> newHandle = result.value();
if (newHandle) {
std::lock_guard<std::mutex> lock(mHandleMutex);
mHandle = std::move(newHandle);
}
}
HalResult<void> AidlHalWrapper::on(milliseconds timeout,
const std::function<void()>& completionCallback) {
HalResult<Capabilities> capabilities = getCapabilities();
bool supportsCallback = capabilities.isOk() &&
static_cast<int32_t>(capabilities.value() & Capabilities::ON_CALLBACK);
auto cb = supportsCallback ? new HalCallbackWrapper(completionCallback) : nullptr;
auto ret = HalResultFactory::fromStatus(getHal()->on(timeout.count(), cb));
if (!supportsCallback && ret.isOk()) {
mCallbackScheduler->schedule(completionCallback, timeout);
}
return ret;
}
HalResult<void> AidlHalWrapper::off() {
return HalResultFactory::fromStatus(getHal()->off());
}
HalResult<void> AidlHalWrapper::setAmplitude(float amplitude) {
return HalResultFactory::fromStatus(getHal()->setAmplitude(amplitude));
}
HalResult<void> AidlHalWrapper::setExternalControl(bool enabled) {
return HalResultFactory::fromStatus(getHal()->setExternalControl(enabled));
}
HalResult<void> AidlHalWrapper::alwaysOnEnable(int32_t id, Effect effect, EffectStrength strength) {
return HalResultFactory::fromStatus(getHal()->alwaysOnEnable(id, effect, strength));
}
HalResult<void> AidlHalWrapper::alwaysOnDisable(int32_t id) {
return HalResultFactory::fromStatus(getHal()->alwaysOnDisable(id));
}
HalResult<milliseconds> AidlHalWrapper::performEffect(
Effect effect, EffectStrength strength, const std::function<void()>& completionCallback) {
HalResult<Capabilities> capabilities = getCapabilities();
bool supportsCallback = capabilities.isOk() &&
static_cast<int32_t>(capabilities.value() & Capabilities::PERFORM_CALLBACK);
auto cb = supportsCallback ? new HalCallbackWrapper(completionCallback) : nullptr;
int32_t lengthMs;
auto result = getHal()->perform(effect, strength, cb, &lengthMs);
milliseconds length = milliseconds(lengthMs);
auto ret = HalResultFactory::fromStatus<milliseconds>(result, length);
if (!supportsCallback && ret.isOk()) {
mCallbackScheduler->schedule(completionCallback, length);
}
return ret;
}
HalResult<milliseconds> AidlHalWrapper::performComposedEffect(
const std::vector<CompositeEffect>& primitives,
const std::function<void()>& completionCallback) {
// This method should always support callbacks, so no need to double check.
auto cb = new HalCallbackWrapper(completionCallback);
auto durations = getPrimitiveDurations().valueOr({});
milliseconds duration(0);
for (const auto& effect : primitives) {
auto primitiveIdx = static_cast<size_t>(effect.primitive);
if (primitiveIdx < durations.size()) {
duration += durations[primitiveIdx];
} else {
// Make sure the returned duration is positive to indicate successful vibration.
duration += milliseconds(1);
}
duration += milliseconds(effect.delayMs);
}
return HalResultFactory::fromStatus<milliseconds>(getHal()->compose(primitives, cb), duration);
}
HalResult<void> AidlHalWrapper::performPwleEffect(const std::vector<PrimitivePwle>& primitives,
const std::function<void()>& completionCallback) {
// This method should always support callbacks, so no need to double check.
auto cb = new HalCallbackWrapper(completionCallback);
return HalResultFactory::fromStatus(getHal()->composePwle(primitives, cb));
}
HalResult<Capabilities> AidlHalWrapper::getCapabilitiesInternal() {
int32_t capabilities = 0;
auto result = getHal()->getCapabilities(&capabilities);
return HalResultFactory::fromStatus<Capabilities>(result,
static_cast<Capabilities>(capabilities));
}
HalResult<std::vector<Effect>> AidlHalWrapper::getSupportedEffectsInternal() {
std::vector<Effect> supportedEffects;
auto result = getHal()->getSupportedEffects(&supportedEffects);
return HalResultFactory::fromStatus<std::vector<Effect>>(result, supportedEffects);
}
HalResult<std::vector<Braking>> AidlHalWrapper::getSupportedBrakingInternal() {
std::vector<Braking> supportedBraking;
auto result = getHal()->getSupportedBraking(&supportedBraking);
return HalResultFactory::fromStatus<std::vector<Braking>>(result, supportedBraking);
}
HalResult<std::vector<CompositePrimitive>> AidlHalWrapper::getSupportedPrimitivesInternal() {
std::vector<CompositePrimitive> supportedPrimitives;
auto result = getHal()->getSupportedPrimitives(&supportedPrimitives);
return HalResultFactory::fromStatus<std::vector<CompositePrimitive>>(result,
supportedPrimitives);
}
HalResult<std::vector<milliseconds>> AidlHalWrapper::getPrimitiveDurationsInternal(
const std::vector<CompositePrimitive>& supportedPrimitives) {
std::vector<milliseconds> durations;
constexpr auto primitiveRange = enum_range<CompositePrimitive>();
constexpr auto primitiveCount = std::distance(primitiveRange.begin(), primitiveRange.end());
durations.resize(primitiveCount);
for (auto primitive : supportedPrimitives) {
auto primitiveIdx = static_cast<size_t>(primitive);
if (primitiveIdx >= durations.size()) {
// Safety check, should not happen if enum_range is correct.
ALOGE("Supported primitive %zu is outside range [0,%zu), skipping load duration",
primitiveIdx, durations.size());
continue;
}
int32_t duration = 0;
auto result = getHal()->getPrimitiveDuration(primitive, &duration);
auto halResult = HalResultFactory::fromStatus<int32_t>(result, duration);
if (halResult.isUnsupported()) {
// Should not happen, supported primitives should always support requesting duration.
ALOGE("Supported primitive %zu returned unsupported for getPrimitiveDuration",
primitiveIdx);
}
if (halResult.isFailed()) {
// Fail entire request if one request has failed.
return HalResult<std::vector<milliseconds>>::failed(result.toString8().c_str());
}
durations[primitiveIdx] = milliseconds(duration);
}
return HalResult<std::vector<milliseconds>>::ok(durations);
}
HalResult<milliseconds> AidlHalWrapper::getPrimitiveDelayMaxInternal() {
int32_t delay = 0;
auto result = getHal()->getCompositionDelayMax(&delay);
return HalResultFactory::fromStatus<milliseconds>(result, milliseconds(delay));
}
HalResult<milliseconds> AidlHalWrapper::getPrimitiveDurationMaxInternal() {
int32_t delay = 0;
auto result = getHal()->getPwlePrimitiveDurationMax(&delay);
return HalResultFactory::fromStatus<milliseconds>(result, milliseconds(delay));
}
HalResult<int32_t> AidlHalWrapper::getCompositionSizeMaxInternal() {
int32_t size = 0;
auto result = getHal()->getCompositionSizeMax(&size);
return HalResultFactory::fromStatus<int32_t>(result, size);
}
HalResult<int32_t> AidlHalWrapper::getPwleSizeMaxInternal() {
int32_t size = 0;
auto result = getHal()->getPwleCompositionSizeMax(&size);
return HalResultFactory::fromStatus<int32_t>(result, size);
}
HalResult<float> AidlHalWrapper::getMinFrequencyInternal() {
float minFrequency = 0;
auto result = getHal()->getFrequencyMinimum(&minFrequency);
return HalResultFactory::fromStatus<float>(result, minFrequency);
}
HalResult<float> AidlHalWrapper::getResonantFrequencyInternal() {
float f0 = 0;
auto result = getHal()->getResonantFrequency(&f0);
return HalResultFactory::fromStatus<float>(result, f0);
}
HalResult<float> AidlHalWrapper::getFrequencyResolutionInternal() {
float frequencyResolution = 0;
auto result = getHal()->getFrequencyResolution(&frequencyResolution);
return HalResultFactory::fromStatus<float>(result, frequencyResolution);
}
HalResult<float> AidlHalWrapper::getQFactorInternal() {
float qFactor = 0;
auto result = getHal()->getQFactor(&qFactor);
return HalResultFactory::fromStatus<float>(result, qFactor);
}
HalResult<std::vector<float>> AidlHalWrapper::getMaxAmplitudesInternal() {
std::vector<float> amplitudes;
auto result = getHal()->getBandwidthAmplitudeMap(&amplitudes);
return HalResultFactory::fromStatus<std::vector<float>>(result, amplitudes);
}
sp<Aidl::IVibrator> AidlHalWrapper::getHal() {
std::lock_guard<std::mutex> lock(mHandleMutex);
return mHandle;
}
// -------------------------------------------------------------------------------------------------
template <typename I>
HalResult<void> HidlHalWrapper<I>::ping() {
auto result = getHal()->ping();
return HalResultFactory::fromReturn(result);
}
template <typename I>
void HidlHalWrapper<I>::tryReconnect() {
sp<I> newHandle = I::tryGetService();
if (newHandle) {
std::lock_guard<std::mutex> lock(mHandleMutex);
mHandle = std::move(newHandle);
}
}
template <typename I>
HalResult<void> HidlHalWrapper<I>::on(milliseconds timeout,
const std::function<void()>& completionCallback) {
auto result = getHal()->on(timeout.count());
auto ret = HalResultFactory::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
if (ret.isOk()) {
mCallbackScheduler->schedule(completionCallback, timeout);
}
return ret;
}
template <typename I>
HalResult<void> HidlHalWrapper<I>::off() {
auto result = getHal()->off();
return HalResultFactory::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
}
template <typename I>
HalResult<void> HidlHalWrapper<I>::setAmplitude(float amplitude) {
uint8_t amp = static_cast<uint8_t>(amplitude * std::numeric_limits<uint8_t>::max());
auto result = getHal()->setAmplitude(amp);
return HalResultFactory::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
}
template <typename I>
HalResult<void> HidlHalWrapper<I>::setExternalControl(bool) {
ALOGV("Skipped setExternalControl because Vibrator HAL does not support it");
return HalResult<void>::unsupported();
}
template <typename I>
HalResult<void> HidlHalWrapper<I>::alwaysOnEnable(int32_t, Effect, EffectStrength) {
ALOGV("Skipped alwaysOnEnable because Vibrator HAL AIDL is not available");
return HalResult<void>::unsupported();
}
template <typename I>
HalResult<void> HidlHalWrapper<I>::alwaysOnDisable(int32_t) {
ALOGV("Skipped alwaysOnDisable because Vibrator HAL AIDL is not available");
return HalResult<void>::unsupported();
}
template <typename I>
HalResult<Capabilities> HidlHalWrapper<I>::getCapabilitiesInternal() {
hardware::Return<bool> result = getHal()->supportsAmplitudeControl();
Capabilities capabilities =
result.withDefault(false) ? Capabilities::AMPLITUDE_CONTROL : Capabilities::NONE;
return HalResultFactory::fromReturn<Capabilities>(result, capabilities);
}
template <typename I>
template <typename T>
HalResult<milliseconds> HidlHalWrapper<I>::performInternal(
perform_fn<T> performFn, sp<I> handle, T effect, EffectStrength strength,
const std::function<void()>& completionCallback) {
V1_0::Status status;
int32_t lengthMs;
auto effectCallback = [&status, &lengthMs](V1_0::Status retStatus, uint32_t retLengthMs) {
status = retStatus;
lengthMs = retLengthMs;
};
V1_0::EffectStrength effectStrength = static_cast<V1_0::EffectStrength>(strength);
auto result = std::invoke(performFn, handle, effect, effectStrength, effectCallback);
milliseconds length = milliseconds(lengthMs);
auto ret = HalResultFactory::fromReturn<milliseconds>(result, status, length);
if (ret.isOk()) {
mCallbackScheduler->schedule(completionCallback, length);
}
return ret;
}
template <typename I>
sp<I> HidlHalWrapper<I>::getHal() {
std::lock_guard<std::mutex> lock(mHandleMutex);
return mHandle;
}
// -------------------------------------------------------------------------------------------------
HalResult<milliseconds> HidlHalWrapperV1_0::performEffect(
Effect effect, EffectStrength strength, const std::function<void()>& completionCallback) {
if (isStaticCastValid<V1_0::Effect>(effect)) {
return performInternal(&V1_0::IVibrator::perform, getHal(),
static_cast<V1_0::Effect>(effect), strength, completionCallback);
}
ALOGV("Skipped performEffect because Vibrator HAL does not support effect %s",
Aidl::toString(effect).c_str());
return HalResult<milliseconds>::unsupported();
}
// -------------------------------------------------------------------------------------------------
HalResult<milliseconds> HidlHalWrapperV1_1::performEffect(
Effect effect, EffectStrength strength, const std::function<void()>& completionCallback) {
if (isStaticCastValid<V1_0::Effect>(effect)) {
return performInternal(&V1_1::IVibrator::perform, getHal(),
static_cast<V1_0::Effect>(effect), strength, completionCallback);
}
if (isStaticCastValid<V1_1::Effect_1_1>(effect)) {
return performInternal(&V1_1::IVibrator::perform_1_1, getHal(),
static_cast<V1_1::Effect_1_1>(effect), strength, completionCallback);
}
ALOGV("Skipped performEffect because Vibrator HAL does not support effect %s",
Aidl::toString(effect).c_str());
return HalResult<milliseconds>::unsupported();
}
// -------------------------------------------------------------------------------------------------
HalResult<milliseconds> HidlHalWrapperV1_2::performEffect(
Effect effect, EffectStrength strength, const std::function<void()>& completionCallback) {
if (isStaticCastValid<V1_0::Effect>(effect)) {
return performInternal(&V1_2::IVibrator::perform, getHal(),
static_cast<V1_0::Effect>(effect), strength, completionCallback);
}
if (isStaticCastValid<V1_1::Effect_1_1>(effect)) {
return performInternal(&V1_2::IVibrator::perform_1_1, getHal(),
static_cast<V1_1::Effect_1_1>(effect), strength, completionCallback);
}
if (isStaticCastValid<V1_2::Effect>(effect)) {
return performInternal(&V1_2::IVibrator::perform_1_2, getHal(),
static_cast<V1_2::Effect>(effect), strength, completionCallback);
}
ALOGV("Skipped performEffect because Vibrator HAL does not support effect %s",
Aidl::toString(effect).c_str());
return HalResult<milliseconds>::unsupported();
}
// -------------------------------------------------------------------------------------------------
HalResult<void> HidlHalWrapperV1_3::setExternalControl(bool enabled) {
auto result = getHal()->setExternalControl(static_cast<uint32_t>(enabled));
return HalResultFactory::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
}
HalResult<milliseconds> HidlHalWrapperV1_3::performEffect(
Effect effect, EffectStrength strength, const std::function<void()>& completionCallback) {
if (isStaticCastValid<V1_0::Effect>(effect)) {
return performInternal(&V1_3::IVibrator::perform, getHal(),
static_cast<V1_0::Effect>(effect), strength, completionCallback);
}
if (isStaticCastValid<V1_1::Effect_1_1>(effect)) {
return performInternal(&V1_3::IVibrator::perform_1_1, getHal(),
static_cast<V1_1::Effect_1_1>(effect), strength, completionCallback);
}
if (isStaticCastValid<V1_2::Effect>(effect)) {
return performInternal(&V1_3::IVibrator::perform_1_2, getHal(),
static_cast<V1_2::Effect>(effect), strength, completionCallback);
}
if (isStaticCastValid<V1_3::Effect>(effect)) {
return performInternal(&V1_3::IVibrator::perform_1_3, getHal(),
static_cast<V1_3::Effect>(effect), strength, completionCallback);
}
ALOGV("Skipped performEffect because Vibrator HAL does not support effect %s",
Aidl::toString(effect).c_str());
return HalResult<milliseconds>::unsupported();
}
HalResult<Capabilities> HidlHalWrapperV1_3::getCapabilitiesInternal() {
Capabilities capabilities = Capabilities::NONE;
sp<V1_3::IVibrator> hal = getHal();
auto amplitudeResult = hal->supportsAmplitudeControl();
if (!amplitudeResult.isOk()) {
return HalResultFactory::fromReturn<Capabilities>(amplitudeResult, capabilities);
}
auto externalControlResult = hal->supportsExternalControl();
if (amplitudeResult.withDefault(false)) {
capabilities |= Capabilities::AMPLITUDE_CONTROL;
}
if (externalControlResult.withDefault(false)) {
capabilities |= Capabilities::EXTERNAL_CONTROL;
if (amplitudeResult.withDefault(false)) {
capabilities |= Capabilities::EXTERNAL_AMPLITUDE_CONTROL;
}
}
return HalResultFactory::fromReturn<Capabilities>(externalControlResult, capabilities);
}
// -------------------------------------------------------------------------------------------------
}; // namespace vibrator
}; // namespace android