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/*
* Copyright (C) 2017 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 "SampleDriver"
#include "SampleDriver.h"
#include "CpuExecutor.h"
#include "HalInterfaces.h"
#include "ValidateHal.h"
#include <android-base/logging.h>
#include <hidl/LegacySupport.h>
#include <thread>
namespace android {
namespace nn {
namespace sample_driver {
Return<void> SampleDriver::getCapabilities(getCapabilities_cb cb) {
return getCapabilities_1_1(
[&](ErrorStatus error, const V1_1::Capabilities& capabilities) {
// TODO(dgross): Do we need to check compliantWithV1_0(capabilities)?
cb(error, convertToV1_0(capabilities));
});
}
Return<void> SampleDriver::getSupportedOperations(const V1_0::Model& model,
getSupportedOperations_cb cb) {
if (!validateModel(model)) {
VLOG(DRIVER) << "getSupportedOperations";
std::vector<bool> supported;
cb(ErrorStatus::INVALID_ARGUMENT, supported);
return Void();
}
return getSupportedOperations_1_1(convertToV1_1(model), cb);
}
Return<ErrorStatus> SampleDriver::prepareModel(const V1_0::Model& model,
const sp<IPreparedModelCallback>& callback) {
if (callback.get() == nullptr) {
VLOG(DRIVER) << "prepareModel";
LOG(ERROR) << "invalid callback passed to prepareModel";
return ErrorStatus::INVALID_ARGUMENT;
}
if (!validateModel(model)) {
VLOG(DRIVER) << "prepareModel";
callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
return ErrorStatus::INVALID_ARGUMENT;
}
return prepareModel_1_1(convertToV1_1(model), ExecutionPreference::FAST_SINGLE_ANSWER,
callback);
}
Return<ErrorStatus> SampleDriver::prepareModel_1_1(const V1_1::Model& model,
ExecutionPreference preference,
const sp<IPreparedModelCallback>& callback) {
if (VLOG_IS_ON(DRIVER)) {
VLOG(DRIVER) << "prepareModel_1_1";
logModelToInfo(model);
}
if (callback.get() == nullptr) {
LOG(ERROR) << "invalid callback passed to prepareModel";
return ErrorStatus::INVALID_ARGUMENT;
}
if (!validateModel(model) || !validateExecutionPreference(preference)) {
callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
return ErrorStatus::INVALID_ARGUMENT;
}
// TODO: make asynchronous later
sp<SamplePreparedModel> preparedModel = new SamplePreparedModel(model);
if (!preparedModel->initialize()) {
callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
return ErrorStatus::INVALID_ARGUMENT;
}
callback->notify(ErrorStatus::NONE, preparedModel);
return ErrorStatus::NONE;
}
Return<DeviceStatus> SampleDriver::getStatus() {
VLOG(DRIVER) << "getStatus()";
return DeviceStatus::AVAILABLE;
}
int SampleDriver::run() {
android::hardware::configureRpcThreadpool(4, true);
if (registerAsService(mName) != android::OK) {
LOG(ERROR) << "Could not register service";
return 1;
}
android::hardware::joinRpcThreadpool();
LOG(ERROR) << "Service exited!";
return 1;
}
bool SamplePreparedModel::initialize() {
return setRunTimePoolInfosFromHidlMemories(&mPoolInfos, mModel.pools);
}
void SamplePreparedModel::asyncExecute(const Request& request,
const sp<IExecutionCallback>& callback) {
std::vector<RunTimePoolInfo> requestPoolInfos;
if (!setRunTimePoolInfosFromHidlMemories(&requestPoolInfos, request.pools)) {
callback->notify(ErrorStatus::GENERAL_FAILURE);
return;
}
CpuExecutor executor;
int n = executor.run(mModel, request, mPoolInfos, requestPoolInfos);
VLOG(DRIVER) << "executor.run returned " << n;
ErrorStatus executionStatus =
n == ANEURALNETWORKS_NO_ERROR ? ErrorStatus::NONE : ErrorStatus::GENERAL_FAILURE;
Return<void> returned = callback->notify(executionStatus);
if (!returned.isOk()) {
LOG(ERROR) << " hidl callback failed to return properly: " << returned.description();
}
}
Return<ErrorStatus> SamplePreparedModel::execute(const Request& request,
const sp<IExecutionCallback>& callback) {
VLOG(DRIVER) << "execute(" << toString(request) << ")";
if (callback.get() == nullptr) {
LOG(ERROR) << "invalid callback passed to execute";
return ErrorStatus::INVALID_ARGUMENT;
}
if (!validateRequest(request, mModel)) {
callback->notify(ErrorStatus::INVALID_ARGUMENT);
return ErrorStatus::INVALID_ARGUMENT;
}
// This thread is intentionally detached because the sample driver service
// is expected to live forever.
std::thread([this, request, callback]{ asyncExecute(request, callback); }).detach();
return ErrorStatus::NONE;
}
} // namespace sample_driver
} // namespace nn
} // namespace android
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