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/*
* 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/BnVibratorCallback.h>
#include <android/hardware/vibrator/IVibrator.h>
#include <hardware/vibrator.h>
#include <utils/Log.h>
#include <vibratorservice/VibratorHalWrapper.h>
using android::hardware::vibrator::CompositeEffect;
using android::hardware::vibrator::Effect;
using android::hardware::vibrator::EffectStrength;
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());
}
template <class I, class T>
using perform_fn = hardware::Return<void> (I::*)(T, V1_0::EffectStrength,
V1_0::IVibrator::perform_cb);
template <class I, class T>
HalResult<milliseconds> perform(perform_fn<I, T> performFn, sp<I> handle, T effect,
EffectStrength strength) {
V1_0::Status status;
int32_t lengthMs;
V1_0::IVibrator::perform_cb 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);
return HalResult<milliseconds>::fromReturn(result, status, milliseconds(lengthMs));
}
// -------------------------------------------------------------------------------------------------
template <typename T>
HalResult<T> HalResult<T>::ok(T value) {
return HalResult(value);
}
template <typename T>
HalResult<T> HalResult<T>::failed() {
return HalResult(/* unsupported= */ false);
}
template <typename T>
HalResult<T> HalResult<T>::unsupported() {
return HalResult(/* unsupported= */ true);
}
template <typename T>
HalResult<T> HalResult<T>::fromStatus(binder::Status status, T data) {
if (status.exceptionCode() == binder::Status::EX_UNSUPPORTED_OPERATION) {
return HalResult<T>::unsupported();
}
if (status.isOk()) {
return HalResult<T>::ok(data);
}
return HalResult<T>::failed();
}
template <typename T>
HalResult<T> HalResult<T>::fromStatus(V1_0::Status status, T data) {
switch (status) {
case V1_0::Status::OK:
return HalResult<T>::ok(data);
case V1_0::Status::UNSUPPORTED_OPERATION:
return HalResult<T>::unsupported();
default:
return HalResult<T>::failed();
}
}
template <typename T>
template <typename R>
HalResult<T> HalResult<T>::fromReturn(hardware::Return<R>& ret, T data) {
return ret.isOk() ? HalResult<T>::ok(data) : HalResult<T>::failed();
}
template <typename T>
template <typename R>
HalResult<T> HalResult<T>::fromReturn(hardware::Return<R>& ret, V1_0::Status status, T data) {
return ret.isOk() ? HalResult<T>::fromStatus(status, data) : HalResult<T>::failed();
}
// -------------------------------------------------------------------------------------------------
HalResult<void> HalResult<void>::ok() {
return HalResult();
}
HalResult<void> HalResult<void>::failed() {
return HalResult(/* failed= */ true);
}
HalResult<void> HalResult<void>::unsupported() {
return HalResult(/* failed= */ false, /* unsupported= */ true);
}
HalResult<void> HalResult<void>::fromStatus(binder::Status status) {
if (status.exceptionCode() == binder::Status::EX_UNSUPPORTED_OPERATION) {
return HalResult<void>::unsupported();
}
if (status.isOk()) {
return HalResult<void>::ok();
}
return HalResult<void>::failed();
}
HalResult<void> HalResult<void>::fromStatus(V1_0::Status status) {
switch (status) {
case V1_0::Status::OK:
return HalResult<void>::ok();
case V1_0::Status::UNSUPPORTED_OPERATION:
return HalResult<void>::unsupported();
default:
return HalResult<void>::failed();
}
}
template <typename R>
HalResult<void> HalResult<void>::fromReturn(hardware::Return<R>& ret) {
return ret.isOk() ? HalResult<void>::ok() : HalResult<void>::failed();
}
// -------------------------------------------------------------------------------------------------
class HalCallbackWrapper : public Aidl::BnVibratorCallback {
public:
HalCallbackWrapper(const std::function<void()>& completionCallback)
: mCompletionCallback(completionCallback) {}
binder::Status onComplete() override {
mCompletionCallback();
return binder::Status::ok();
}
private:
const std::function<void()> mCompletionCallback;
};
// -------------------------------------------------------------------------------------------------
HalResult<void> AidlHalWrapper::ping() {
return IInterface::asBinder(mHandle)->pingBinder() ? HalResult<void>::ok()
: HalResult<void>::failed();
}
HalResult<void> AidlHalWrapper::on(milliseconds timeout,
const std::function<void()>& completionCallback) {
auto cb = new HalCallbackWrapper(completionCallback);
return HalResult<void>::fromStatus(mHandle->on(timeout.count(), cb));
}
HalResult<void> AidlHalWrapper::off() {
return HalResult<void>::fromStatus(mHandle->off());
}
HalResult<void> AidlHalWrapper::setAmplitude(int32_t amplitude) {
float convertedAmplitude = static_cast<float>(amplitude) / std::numeric_limits<uint8_t>::max();
return HalResult<void>::fromStatus(mHandle->setAmplitude(convertedAmplitude));
}
HalResult<void> AidlHalWrapper::setExternalControl(bool enabled) {
return HalResult<void>::fromStatus(mHandle->setExternalControl(enabled));
}
HalResult<void> AidlHalWrapper::alwaysOnEnable(int32_t id, Effect effect, EffectStrength strength) {
return HalResult<void>::fromStatus(mHandle->alwaysOnEnable(id, effect, strength));
}
HalResult<void> AidlHalWrapper::alwaysOnDisable(int32_t id) {
return HalResult<void>::fromStatus(mHandle->alwaysOnDisable(id));
}
HalResult<Capabilities> AidlHalWrapper::getCapabilities() {
int32_t capabilities = 0;
auto result = mHandle->getCapabilities(&capabilities);
return HalResult<Capabilities>::fromStatus(result, static_cast<Capabilities>(capabilities));
}
HalResult<std::vector<Effect>> AidlHalWrapper::getSupportedEffects() {
std::vector<Effect> supportedEffects;
auto result = mHandle->getSupportedEffects(&supportedEffects);
return HalResult<std::vector<Effect>>::fromStatus(result, supportedEffects);
}
HalResult<milliseconds> AidlHalWrapper::performEffect(
Effect effect, EffectStrength strength, const std::function<void()>& completionCallback) {
int32_t lengthMs;
auto cb = new HalCallbackWrapper(completionCallback);
auto result = mHandle->perform(effect, strength, cb, &lengthMs);
return HalResult<milliseconds>::fromStatus(result, milliseconds(lengthMs));
}
HalResult<void> AidlHalWrapper::performComposedEffect(
const std::vector<CompositeEffect>& primitiveEffects,
const std::function<void()>& completionCallback) {
auto cb = new HalCallbackWrapper(completionCallback);
return HalResult<void>::fromStatus(mHandle->compose(primitiveEffects, cb));
}
// -------------------------------------------------------------------------------------------------
HalResult<void> HidlHalWrapperV1_0::ping() {
auto result = mHandleV1_0->ping();
return HalResult<void>::fromReturn(result);
}
HalResult<void> HidlHalWrapperV1_0::on(milliseconds timeout, const std::function<void()>&) {
auto result = mHandleV1_0->on(timeout.count());
auto status = result.withDefault(V1_0::Status::UNKNOWN_ERROR);
return HalResult<void>::fromStatus(status);
}
HalResult<void> HidlHalWrapperV1_0::off() {
auto result = mHandleV1_0->off();
return HalResult<void>::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
}
HalResult<void> HidlHalWrapperV1_0::setAmplitude(int32_t amplitude) {
auto result = mHandleV1_0->setAmplitude(static_cast<uint8_t>(amplitude));
return HalResult<void>::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
}
HalResult<void> HidlHalWrapperV1_0::setExternalControl(bool) {
ALOGV("Skipped setExternalControl because Vibrator HAL does not support it");
return HalResult<void>::unsupported();
}
HalResult<void> HidlHalWrapperV1_0::alwaysOnEnable(int32_t, Effect, EffectStrength) {
ALOGV("Skipped alwaysOnEnable because Vibrator HAL AIDL is not available");
return HalResult<void>::unsupported();
}
HalResult<void> HidlHalWrapperV1_0::alwaysOnDisable(int32_t) {
ALOGV("Skipped alwaysOnDisable because Vibrator HAL AIDL is not available");
return HalResult<void>::unsupported();
}
HalResult<Capabilities> HidlHalWrapperV1_0::getCapabilities() {
hardware::Return<bool> result = mHandleV1_0->supportsAmplitudeControl();
Capabilities capabilities =
result.withDefault(false) ? Capabilities::AMPLITUDE_CONTROL : Capabilities::NONE;
return HalResult<Capabilities>::fromReturn(result, capabilities);
}
HalResult<std::vector<Effect>> HidlHalWrapperV1_0::getSupportedEffects() {
ALOGV("Skipped getSupportedEffects because Vibrator HAL AIDL is not available");
return HalResult<std::vector<Effect>>::unsupported();
}
HalResult<milliseconds> HidlHalWrapperV1_0::performEffect(Effect effect, EffectStrength strength,
const std::function<void()>&) {
if (isStaticCastValid<V1_0::Effect>(effect)) {
V1_0::Effect e = static_cast<V1_0::Effect>(effect);
return perform(&V1_0::IVibrator::perform, mHandleV1_0, e, strength);
}
ALOGV("Skipped performEffect because Vibrator HAL does not support effect %s",
Aidl::toString(effect).c_str());
return HalResult<milliseconds>::unsupported();
}
HalResult<void> HidlHalWrapperV1_0::performComposedEffect(const std::vector<CompositeEffect>&,
const std::function<void()>&) {
ALOGV("Skipped composed effect because Vibrator HAL AIDL is not available");
return HalResult<void>::unsupported();
}
// -------------------------------------------------------------------------------------------------
HalResult<milliseconds> HidlHalWrapperV1_1::performEffect(Effect effect, EffectStrength strength,
const std::function<void()>&) {
if (isStaticCastValid<V1_0::Effect>(effect)) {
V1_0::Effect e = static_cast<V1_0::Effect>(effect);
return perform(&V1_0::IVibrator::perform, mHandleV1_0, e, strength);
}
if (isStaticCastValid<V1_1::Effect_1_1>(effect)) {
V1_1::Effect_1_1 e = static_cast<V1_1::Effect_1_1>(effect);
return perform(&V1_1::IVibrator::perform_1_1, mHandleV1_1, e, strength);
}
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()>&) {
if (isStaticCastValid<V1_0::Effect>(effect)) {
V1_0::Effect e = static_cast<V1_0::Effect>(effect);
return perform(&V1_0::IVibrator::perform, mHandleV1_0, e, strength);
}
if (isStaticCastValid<V1_1::Effect_1_1>(effect)) {
V1_1::Effect_1_1 e = static_cast<V1_1::Effect_1_1>(effect);
return perform(&V1_1::IVibrator::perform_1_1, mHandleV1_1, e, strength);
}
if (isStaticCastValid<V1_2::Effect>(effect)) {
V1_2::Effect e = static_cast<V1_2::Effect>(effect);
return perform(&V1_2::IVibrator::perform_1_2, mHandleV1_2, e, strength);
}
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 = mHandleV1_3->setExternalControl(static_cast<uint32_t>(enabled));
return HalResult<void>::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
}
HalResult<Capabilities> HidlHalWrapperV1_3::getCapabilities() {
HalResult<Capabilities> parentResult = HidlHalWrapperV1_2::getCapabilities();
if (!parentResult.isOk()) {
// Loading for versions up to v1.2 already failed, so propagate failure.
return parentResult;
}
Capabilities capabilities = parentResult.value();
auto result = mHandleV1_3->supportsExternalControl();
capabilities |= result.withDefault(false) ? Capabilities::EXTERNAL_CONTROL : Capabilities::NONE;
return HalResult<Capabilities>::fromReturn(result, capabilities);
}
HalResult<milliseconds> HidlHalWrapperV1_3::performEffect(Effect effect, EffectStrength strength,
const std::function<void()>&) {
if (isStaticCastValid<V1_0::Effect>(effect)) {
V1_0::Effect e = static_cast<V1_0::Effect>(effect);
return perform(&V1_0::IVibrator::perform, mHandleV1_0, e, strength);
}
if (isStaticCastValid<V1_1::Effect_1_1>(effect)) {
V1_1::Effect_1_1 e = static_cast<V1_1::Effect_1_1>(effect);
return perform(&V1_1::IVibrator::perform_1_1, mHandleV1_1, e, strength);
}
if (isStaticCastValid<V1_2::Effect>(effect)) {
V1_2::Effect e = static_cast<V1_2::Effect>(effect);
return perform(&V1_2::IVibrator::perform_1_2, mHandleV1_2, e, strength);
}
if (isStaticCastValid<V1_3::Effect>(effect)) {
V1_3::Effect e = static_cast<V1_3::Effect>(effect);
return perform(&V1_3::IVibrator::perform_1_3, mHandleV1_3, e, strength);
}
ALOGV("Skipped performEffect because Vibrator HAL does not support effect %s",
Aidl::toString(effect).c_str());
return HalResult<milliseconds>::unsupported();
}
// -------------------------------------------------------------------------------------------------
}; // namespace vibrator
}; // namespace android