1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "android.hardware.neuralnetworks@1.0-impl-hvx"
18
19 #include "Device.h"
20 #include <android-base/logging.h>
21 #include <memory>
22 #include <mutex>
23 #include <thread>
24 #include "HexagonModel.h"
25 #include "HexagonUtils.h"
26 #include "PreparedModel.h"
27 #include "ValidateHal.h"
28
29 namespace android {
30 namespace hardware {
31 namespace neuralnetworks {
32 namespace V1_0 {
33 namespace implementation {
34
Device()35 Device::Device() : mCurrentStatus(DeviceStatus::AVAILABLE) {}
36
~Device()37 Device::~Device() {}
38
39 static std::once_flag configure_nnlib;
configureHexagon()40 static void configureHexagon() {
41 std::call_once(configure_nnlib, []() {
42 hexagon::Controller::getInstance().config();
43 });
44 }
45
getCapabilities(getCapabilities_cb _hidl_cb)46 Return<void> Device::getCapabilities(getCapabilities_cb _hidl_cb) {
47 configureHexagon();
48
49 // These numbers are approximations for this release.
50 // TODO Change with the actual number.
51 PerformanceInfo float32Performance = {
52 .execTime = 30.0f, .powerUsage = 2.0f,
53 };
54
55 PerformanceInfo quantized8Performance = {
56 .execTime = 0.7f, .powerUsage = 0.7f,
57 };
58
59 Capabilities capabilities = {
60 .float32Performance = float32Performance, .quantized8Performance = quantized8Performance,
61 };
62
63 ErrorStatus status =
64 hexagon::isHexagonAvailable() ? ErrorStatus::NONE : ErrorStatus::DEVICE_UNAVAILABLE;
65
66 _hidl_cb(status, capabilities);
67 return Void();
68 }
69
getSupportedOperations(const Model & model,getSupportedOperations_cb _hidl_cb)70 Return<void> Device::getSupportedOperations(const Model& model,
71 getSupportedOperations_cb _hidl_cb) {
72 configureHexagon();
73
74 if (!nn::validateModel(model)) {
75 _hidl_cb(ErrorStatus::INVALID_ARGUMENT, std::vector<bool>{});
76 return Void();
77 }
78 if (!hexagon::isHexagonAvailable()) {
79 _hidl_cb(ErrorStatus::DEVICE_UNAVAILABLE, std::vector<bool>{});
80 return Void();
81 }
82
83 hexagon::Model hexagonModel(model);
84 std::vector<bool> supported = hexagonModel.supportedOperations();
85
86 _hidl_cb(ErrorStatus::NONE, supported);
87 return Void();
88 }
89
asyncPrepare(const Model & model,const sp<IPreparedModelCallback> & callback)90 static void asyncPrepare(const Model& model, const sp<IPreparedModelCallback>& callback) {
91 std::shared_ptr<hexagon::Model> hexagonModel = std::make_shared<hexagon::Model>(model);
92
93 Return<void> ret;
94 if (hexagonModel->prepare()) {
95 ret = callback->notify(ErrorStatus::NONE, new PreparedModel(model, hexagonModel));
96 } else {
97 ret = callback->notify(ErrorStatus::GENERAL_FAILURE, nullptr);
98 }
99 if (!ret.isOk()) {
100 LOG(ERROR) << "Error in callback's return type: " << ret.description();
101 }
102 }
103
prepareModel(const Model & model,const sp<IPreparedModelCallback> & callback)104 Return<ErrorStatus> Device::prepareModel(const Model& model,
105 const sp<IPreparedModelCallback>& callback) {
106 configureHexagon();
107
108 if (callback.get() == nullptr) {
109 LOG(ERROR) << "invalid callback passed to prepareModel";
110 return ErrorStatus::INVALID_ARGUMENT;
111 }
112 if (!nn::validateModel(model)) {
113 callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
114 return ErrorStatus::INVALID_ARGUMENT;
115 }
116 if (!hexagon::isHexagonAvailable()) {
117 callback->notify(ErrorStatus::DEVICE_UNAVAILABLE, nullptr);
118 return ErrorStatus::DEVICE_UNAVAILABLE;
119 }
120
121 // TODO: once nnlib hanging issue is resolved, make this function
122 // asynchronous again
123 asyncPrepare(model, callback);
124
125 return ErrorStatus::NONE;
126 }
127
getStatus()128 Return<DeviceStatus> Device::getStatus() {
129 configureHexagon();
130 mCurrentStatus =
131 hexagon::isHexagonAvailable() ? DeviceStatus::AVAILABLE : DeviceStatus::OFFLINE;
132 return mCurrentStatus;
133 }
134
135 } // namespace implementation
136 } // namespace V1_0
137 } // namespace neuralnetworks
138 } // namespace hardware
139 } // namespace android
140