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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.
*/
#ifndef ANDROID_FRAMEWORKS_ML_NN_DRIVER_SAMPLE_SAMPLE_DRIVER_H
#define ANDROID_FRAMEWORKS_ML_NN_DRIVER_SAMPLE_SAMPLE_DRIVER_H
#include <string>
#include <vector>
#include "CpuExecutor.h"
#include "HalInterfaces.h"
#include "NeuralNetworks.h"
namespace android {
namespace nn {
namespace sample_driver {
using hardware::MQDescriptorSync;
// Base class used to create sample drivers for the NN HAL. This class
// provides some implementation of the more common functions.
//
// Since these drivers simulate hardware, they must run the computations
// on the CPU. An actual driver would not do that.
class SampleDriver : public hal::IDevice {
public:
SampleDriver(const char* name,
const IOperationResolver* operationResolver = BuiltinOperationResolver::get())
: mName(name), mOperationResolver(operationResolver) {
android::nn::initVLogMask();
}
~SampleDriver() override {}
hal::Return<void> getCapabilities(getCapabilities_cb cb) override;
hal::Return<void> getCapabilities_1_1(getCapabilities_1_1_cb cb) override;
hal::Return<void> getCapabilities_1_2(getCapabilities_1_2_cb cb) override;
hal::Return<void> getVersionString(getVersionString_cb cb) override;
hal::Return<void> getType(getType_cb cb) override;
hal::Return<void> getSupportedExtensions(getSupportedExtensions_cb) override;
hal::Return<void> getSupportedOperations(const hal::V1_0::Model& model,
getSupportedOperations_cb cb) override;
hal::Return<void> getSupportedOperations_1_1(const hal::V1_1::Model& model,
getSupportedOperations_1_1_cb cb) override;
hal::Return<void> getSupportedOperations_1_2(const hal::V1_2::Model& model,
getSupportedOperations_1_2_cb cb) override;
hal::Return<void> getNumberOfCacheFilesNeeded(getNumberOfCacheFilesNeeded_cb cb) override;
hal::Return<hal::ErrorStatus> prepareModel(
const hal::V1_0::Model& model,
const sp<hal::V1_0::IPreparedModelCallback>& callback) override;
hal::Return<hal::ErrorStatus> prepareModel_1_1(
const hal::V1_1::Model& model, hal::ExecutionPreference preference,
const sp<hal::V1_0::IPreparedModelCallback>& callback) override;
hal::Return<hal::ErrorStatus> prepareModel_1_2(
const hal::V1_2::Model& model, hal::ExecutionPreference preference,
const hal::hidl_vec<hal::hidl_handle>& modelCache,
const hal::hidl_vec<hal::hidl_handle>& dataCache, const hal::CacheToken& token,
const sp<hal::V1_2::IPreparedModelCallback>& callback) override;
hal::Return<hal::ErrorStatus> prepareModel_1_3(
const hal::V1_3::Model& model, hal::ExecutionPreference preference,
const hal::hidl_vec<hal::hidl_handle>& modelCache,
const hal::hidl_vec<hal::hidl_handle>& dataCache, const hal::CacheToken& token,
const sp<hal::V1_2::IPreparedModelCallback>& callback) override;
hal::Return<hal::ErrorStatus> prepareModelFromCache(
const hal::hidl_vec<hal::hidl_handle>& modelCache,
const hal::hidl_vec<hal::hidl_handle>& dataCache, const hal::CacheToken& token,
const sp<hal::V1_2::IPreparedModelCallback>& callback) override;
hal::Return<hal::DeviceStatus> getStatus() override;
// Starts and runs the driver service. Typically called from main().
// This will return only once the service shuts down.
int run();
CpuExecutor getExecutor() const { return CpuExecutor(mOperationResolver); }
protected:
std::string mName;
const IOperationResolver* mOperationResolver;
};
class SamplePreparedModel : public hal::IPreparedModel {
public:
SamplePreparedModel(const hal::Model& model, const SampleDriver* driver)
: mModel(model), mDriver(driver) {}
~SamplePreparedModel() override {}
bool initialize();
hal::Return<hal::ErrorStatus> execute(
const hal::Request& request,
const sp<hal::V1_0::IExecutionCallback>& callback) override;
hal::Return<hal::ErrorStatus> execute_1_2(
const hal::Request& request, hal::MeasureTiming measure,
const sp<hal::V1_2::IExecutionCallback>& callback) override;
hal::Return<void> executeSynchronously(const hal::Request& request, hal::MeasureTiming measure,
executeSynchronously_cb cb) override;
hal::Return<void> configureExecutionBurst(
const sp<hal::V1_2::IBurstCallback>& callback,
const MQDescriptorSync<hal::V1_2::FmqRequestDatum>& requestChannel,
const MQDescriptorSync<hal::V1_2::FmqResultDatum>& resultChannel,
configureExecutionBurst_cb cb) override;
private:
hal::Model mModel;
const SampleDriver* mDriver;
std::vector<RunTimePoolInfo> mPoolInfos;
};
} // namespace sample_driver
} // namespace nn
} // namespace android
#endif // ANDROID_FRAMEWORKS_ML_NN_DRIVER_SAMPLE_SAMPLE_DRIVER_H
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