1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/*
* 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.
*/
#include "Service.h"
#include <AndroidVersionUtil.h>
#include <aidl/android/hardware/neuralnetworks/IDevice.h>
#include <android-base/logging.h>
#include <android/binder_manager.h>
#include <android/hardware/neuralnetworks/1.0/IDevice.h>
#include <android/hardware/neuralnetworks/1.1/IDevice.h>
#include <android/hardware/neuralnetworks/1.2/IDevice.h>
#include <android/hardware/neuralnetworks/1.3/IDevice.h>
#include <android/hidl/manager/1.2/IServiceManager.h>
#include <hidl/ServiceManagement.h>
#include <nnapi/IDevice.h>
#include <nnapi/Result.h>
#include <nnapi/TypeUtils.h>
#include <nnapi/Types.h>
#include <nnapi/hal/1.0/Service.h>
#include <nnapi/hal/1.1/Service.h>
#include <nnapi/hal/1.2/Service.h>
#include <nnapi/hal/1.3/Service.h>
#include <nnapi/hal/aidl/Service.h>
#include <nnapi/hal/aidl/Utils.h>
#include <functional>
#include <memory>
#include <string>
#include <type_traits>
#include <unordered_set>
#include <vector>
namespace android::hardware::neuralnetworks::service {
namespace {
namespace aidl_hal = ::aidl::android::hardware::neuralnetworks;
using getDeviceFn = std::add_pointer_t<nn::GeneralResult<nn::SharedDevice>(const std::string&)>;
void getHidlDevicesForVersion(const std::string& descriptor, getDeviceFn getDevice,
std::vector<SharedDeviceAndUpdatability>* devices,
std::unordered_set<std::string>* registeredDevices) {
CHECK(devices != nullptr);
CHECK(registeredDevices != nullptr);
const auto names = getAllHalInstanceNames(descriptor);
for (const auto& name : names) {
if (const auto [it, unregistered] = registeredDevices->insert(name); unregistered) {
auto maybeDevice = getDevice(name);
if (maybeDevice.has_value()) {
auto device = std::move(maybeDevice).value();
CHECK(device != nullptr);
devices->push_back({.device = std::move(device)});
} else {
LOG(ERROR) << "getDevice(" << name << ") failed with " << maybeDevice.error().code
<< ": " << maybeDevice.error().message;
}
}
}
}
void getAidlDevices(std::vector<SharedDeviceAndUpdatability>* devices,
std::unordered_set<std::string>* registeredDevices,
bool includeUpdatableDrivers) {
CHECK(devices != nullptr);
CHECK(registeredDevices != nullptr);
std::vector<std::string> names;
constexpr auto callback = [](const char* serviceName, void* names) {
static_cast<std::vector<std::string>*>(names)->emplace_back(serviceName);
};
// Devices with SDK level lower than 31 (Android S) don't have any AIDL drivers available, so
// there is no need for a workaround supported on lower levels.
if (__builtin_available(android __NNAPI_AIDL_MIN_ANDROID_API__, *)) {
AServiceManager_forEachDeclaredInstance(aidl_hal::IDevice::descriptor,
static_cast<void*>(&names), callback);
}
for (const auto& name : names) {
bool isDeviceUpdatable = false;
if (__builtin_available(android __NNAPI_AIDL_MIN_ANDROID_API__, *)) {
const auto instance = std::string(aidl_hal::IDevice::descriptor) + '/' + name;
isDeviceUpdatable = AServiceManager_isUpdatableViaApex(instance.c_str());
}
if (isDeviceUpdatable && !includeUpdatableDrivers) {
continue;
}
if (const auto [it, unregistered] = registeredDevices->insert(name); unregistered) {
auto maybeDevice = aidl_hal::utils::getDevice(name);
if (maybeDevice.has_value()) {
auto device = std::move(maybeDevice).value();
CHECK(device != nullptr);
devices->push_back(
{.device = std::move(device), .isDeviceUpdatable = isDeviceUpdatable});
} else {
LOG(ERROR) << "getDevice(" << name << ") failed with " << maybeDevice.error().code
<< ": " << maybeDevice.error().message;
}
}
}
}
} // namespace
std::vector<SharedDeviceAndUpdatability> getDevices(bool includeUpdatableDrivers) {
std::vector<SharedDeviceAndUpdatability> devices;
std::unordered_set<std::string> registeredDevices;
getAidlDevices(&devices, ®isteredDevices, includeUpdatableDrivers);
getHidlDevicesForVersion(V1_3::IDevice::descriptor, &V1_3::utils::getDevice, &devices,
®isteredDevices);
getHidlDevicesForVersion(V1_2::IDevice::descriptor, &V1_2::utils::getDevice, &devices,
®isteredDevices);
getHidlDevicesForVersion(V1_1::IDevice::descriptor, &V1_1::utils::getDevice, &devices,
®isteredDevices);
getHidlDevicesForVersion(V1_0::IDevice::descriptor, &V1_0::utils::getDevice, &devices,
®isteredDevices);
return devices;
}
} // namespace android::hardware::neuralnetworks::service
|
