The current repo belongs to Closed status, and some functions are restricted. For details, please refer to the description of repo status
6 Star 1 Fork 1

OpenHarmony / distributed_hardware_fwk
Closed

Create your Gitee Account
Explore and code with more than 12 million developers,Free private repositories !:)
Sign up
Clone or Download
contribute
Sync branch
Cancel
Notice: Creating folder will generate an empty file .keep, because not support in Git
Loading...
README
Apache-2.0

分布式硬件管理框架

简介

分布式硬件管理框架是为分布式硬件子系统提供信息管理能力的部件。分布式硬件管理框架为分布式硬件子系统提供统一的硬件接入、查询和使能等能力。

其系统架构图如下图所示:

硬件接入管理(AccessManager):硬件接入管理模块对接设备管理(DeviceManger)子系统,用于处理设备的上下线事件响应。

硬件资源管理(ResourceManager):对接分布式数据服务,用于存储信任体系内,本机和周边设备同步过来的设备硬件信息。

分布式硬件部件管理(ComponentManager):对接各分布式硬件实例化的部件,实现对分布式硬件的动态加载和使能/去使能等操作。

本地硬件信息管理(LocalHardwareManager):用于采集本地硬件信息,并通过ResourceManager进行硬件信息的持久化存储;同时,通过对接硬件驱动,用于感知本地硬件的插拔等操作,感知是否新增或移除可用硬件,将动态变化的硬件设备也纳入分布式硬件管理。

部件加载管理(ComponentLoader):用于解析部件配置文件,按需加载部件驱动的实现so,获取驱动外部接口函数句柄以及实现版本,供其他业务使用。

版本管理(VersionManager):用于管理超级终端内,各个设备的分布式硬件平台和分布式硬件部件的版本号,供分布式硬件业务各个部件业务使用。

目录

/foundation/distributedhardware/distributed_hardware_fwk
├── common                                  # 分布式硬件管理框架为各个部件提供的公共接口类
├── sa_profile                              # 分布式硬件管理框架的SA配置信息
├── services                                # 分布式硬件管理框架的SA具体实现
│   └── distributedhardwarefwkservice       # 分布式硬件管理框架的服务层
│       └── accessmanager                   # 硬件接入管理
│   └── distributedhardwarefwkserviceimpl   # 分布式硬件管理框架的服务实现层
│       ├── resourcemanager                 # 硬件资源管理
│       ├── componentmanager                # 分布式硬件部件管理
│       ├── localhardwaremanager            # 本地硬件信息管理
│       ├── componentloader                 # 部件加载管理
│       └── versionmanager                  # 版本管理
└── utils                                   # 分布式硬件管理框架为各个部件提供的工具类

约束

语言限制:C++语言。
组网环境:必须确保设备在同一个局域网中。
操作系统限制:OpenHarmony操作系统。

说明

接口说明

1.分布式硬件管理框架不提供北向接口,由各个硬件提供管理接口供开发者调用。
2.分布式硬件管理框架只提供接口供各个分布式硬件(例如分布式相机、分布式屏幕)实现,分布式硬件管理框架统一调用这些接口,实现分布式硬件的虚拟硬件驱动注册等功能。

流程说明

1. 设备开机启动

系统拉起分布式硬件管理框架的SA服务,AccessManager会进行初始化,AccessManager初始化DeviceManger并且注册上下线监听。

2. 设备组网上线

(1) DeviceManger触发上线监听回调。
(2) ResourceManager、ComponentLoader、LocalHardwareManager、VersionManager 、ComponentManager各个模块依次初始化。
(3) 分布式硬件管理框架内部会构造上线任务,使能各个分布式硬件部件。

以分布式相机为例,某设备上线后,分布式硬件管理框架同步到上线设备的相机硬件信息并使能,使能成功后在系统中会新增分布式相机驱动并通知到相机框架,相机框架统一管理本地相机和分布式相机驱动;上层应用通过相机框架接口可以查询到分布式相机,并按照和本地相机相同的接口使用分布式相机。

3. 设备下线

(1) DeviceManger触发下线监听回调。
(2) 分布式硬件管理框架内部会构造下线任务,去使能各个分布式硬件部件。

以分布式相机为例,某设备下线后,分布式硬件管理框架去使能下线设备的相机硬件,本地移除分布式相机驱动并通知到相机框架,此时下线设备的分布式相机不可用。

涉及仓


分布式硬件子系统:

设备管理 device_manager

分步式硬件管理框架 distributed_hardware_fwk

分布式相机 distributed_camera

分布式屏幕 distributed_screen

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS

About

Distributed Hardware Framework | 分布式硬件管理框架 expand collapse
C++ and 2 more languages
Apache-2.0
Cancel

Releases

No release

Contributors

All

Activities

Load More
can not load any more
1
https://gitee.com/openharmony/distributed_hardware_fwk.git
git@gitee.com:openharmony/distributed_hardware_fwk.git
openharmony
distributed_hardware_fwk
distributed_hardware_fwk
master

Search