1# hispark\_taurus<a name="EN-US_TOPIC_0000001142448981"></a> 2 3- [Introduction](#section11660541593) 4- [Directory Structure](#section161941989596) 5- [Constraints](#section119744591305) 6- [Compilation and Building](#section137768191623) 7- [hispark\_taurus License Agreement](#section1312121216216) 8 - [third\_party License Notice](#section129654513264) 9 10- [Repositories Involved](#section1371113476307) 11 12## Introduction<a name="section11660541593"></a> 13 14The **hispark\_taurus** repository provides drivers for the Hi3516D V300 chip and provides basic multimedia capabilities for the Multimedia and Graphics subsystems. including audio/video collection, audio/video encoding and decoding, audio/video output, video pre-processing, encapsulation, decapsulation, file management, storage management, and log system. The following figure shows the architecture of the Multimedia subsystem. 15 16**Figure 1** Multimedia subsystem architecture<a name="fig4460722185514"></a> 17 18 19 20 21## Directory Structure<a name="section161941989596"></a> 22 23``` 24/device/hisilicon/hispark_taurus/sdk_liteos 25├── config # Hi3516D V300 device configuration information 26├── mpp 27│ ├── lib # Media library files and license files of Hi3516D V300 28│ └── module_init # Libraries and license files of corresponding media module drivers of Hi3516D V300 29└── uboot 30 ├── out # U-Boot compiled using third_party\uboot\u-boot-2020.01 31 ├── reg # U-Boot configuration files and license files 32 ├── secureboot_ohos # Compilation scripts for securely booting OpenHarmony 33 └── secureboot_release # Source code and license files for generating secure U-Boot files 34 35/device/hisilicon/hispark_taurus/sdk_linux/soc 36├── ko # Kernel module loading script for the Hi3516D V300 chip 37├── lib # Media and graphics library files and license files for the Hi3516D V300 chip 38└── src # Linux kernel driver module source code and license files for the Hi3516D V300 chip 39 ├── interdrv # Peripheral modules 40 │ ├── common # Common modules for all chips 41 │ │ ├── cipher # Encryption/Decryption module 42 │ │ ├── hi_adc # ADC bus controller 43 │ │ ├── hi_ir # IR controller 44 │ │ ├── hi_irq # IRQ management module of the user-space driver 45 │ │ ├── hi_proc # Debugging information management module 46 │ │ └── wtdg # Watchdog 47 │ └── hi3516cv500 # Chip-specific modules 48 │ ├── mipi_rx # RX direction of the MIPI protocol 49 │ ├── mipi_tx # TX direction of the MIPI protocol 50 │ └── sysconfig # System configurations 51 ├── mpp # Graphics and multimedia modules 52 │ ├── cbb 53 │ │ ├── based # Logging functions 54 │ │ ├── sysd # Basic system module that provides memory and module binding functions 55 │ │ └── vo # video output 56 │ └── component 57 │ ├── hdmi # HDMI output 58 │ ├── hifb # Frame buffer management 59 │ └── tde # Two Dimensional Engine 60 └── osal # Operating system abstraction layer, which shields system differences and provides unified interfaces 61``` 62 63## Constraints<a name="section119744591305"></a> 64 65Currently, the Hi3516D V300 chip is supported. 66 67## Compilation and Building<a name="section137768191623"></a> 68 69- Compiling U-Boot 70 711. Download the GCC toolchain from [https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads](https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads). Currently, the toolchain version for compiling U-Boot is **gcc-arm-none-eabi-7-2017-q4-major-linux.tar.bz2**. You can also select other GCC versions. 722. Copy the GCC toolchain to the **prebuilts** directory and decompress it. 733. Go to the **hispark\_taurus\\uboot\\out\\boot** directory and modify the path of the toolchain defined by **OSDRV\_CROSS** in the **makefile** of the directory. 744. Run the **make clean;make all;** command to compile the U-Boot. 75 76The generated U-Boot is stored in the **hispark\_taurus\\uboot\\out\\boot** directory. 77 78Note: **prebuilts\\mkimage** is generated by the U-Boot source code. 79 80## hispark\_taurus License Agreement <a name="section1312121216216"></a> 81 82- The **hispark\_taurus\\sdk\_linux\\soc\\lib** directory stores the HiSilicon-developed libraries, which comply with the license of HiSilicon \(Shanghai\). You can see the following license and copyright information in the license file stored in this directory: 83 84 ``` 85 / *End User License Agreement ... Copyright (C) 2021 HiSilicon (Shanghai) Technologies Co., Ltd. All rights reserved. * / 86 ``` 87 88- The **hispark\_taurus\\sdk\_linux\\soc\\src** directory stores the HiSilicon-developed code, which complies with the HiSilicon \(Shanghai\) copyright statement based on GPL. You can see the following license and copyright information at the beginning of the license file stored in this directory: 89 90 ``` 91 / *Copyright (c) 2021 HiSilicon (Shanghai) Technologies CO., LIMITED. 92 * 93 * This program is free software; you can redistribute it and/or modify it 94 * under the terms of the GNU General Public License as published by the 95 * Free Software Foundation; either version 2 of the License, or (at your 96 * option) any later version. 97 * ... * / 98 ``` 99 100- The **hispark\_taurus\\prebuilts** directory stores the tools generated using the boot source code that is stored in the **device\\hisilicon\\third\_party\\uboot\\u-boot-2020.01** directory. prebuilts uses the Hisilicon \(Shanghai\) copyright statement based on the end-user license agreement. You can see the following license and copyright information in the license file stored in the **hispark\_taurus\\prebuilts** directory: 101 102 ``` 103 / *End User License Agreement ... Copyright (C) 2021 HiSilicon (Shanghai) Technologies Co., Ltd. All rights reserved. * / 104 ``` 105 106- The **hispark\_taurus\\sdk\_linux\\uboot\\reg** directory stores the HiSilicon-developed code, which complies with the HiSilicon \(Shanghai\) copyright statement based on the end-user license agreement. You can see the following license and copyright information in the license file stored in this directory: 107 108 ``` 109 / *End User License Agreement ... Copyright (C) 2021 Hisilicon (Shanghai) Technologies Co., Ltd. All rights reserved. * / 110 ``` 111 112- The **hispark\_taurus\\sdk\_liteos\\mpp\\module\_init\\lib** and **hispark\_taurus\\sdk\_liteos\\mpp\\lib** directories store the HiSilicon-developed libraries, which comply with the license of HiSilicon \(Shanghai\). You can see the following license and copyright information at the end of license files that are stored in the two directories: 113 114 ``` 115 Copyright (C) 2020 Hisilicon (Shanghai) Technologies Co., Ltd. All rights reserved. 116 ``` 117 118- The **hispark\_taurus\\sdk\_liteos\\mpp\\module\_init\\src** directory stores the HiSilicon-developed code, which complies with the HiSilicon \(Shanghai\) copyright statement based on the Apache License Version 2.0. You can see the following license and copyright information at the beginning of the license file that is stored in this directory: 119 120 ``` 121 / *Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED. Licensed under the Apache License,* ... * / 122 ``` 123 124- The **hispark\_taurus\\sdk\_liteos\\uboot\\reg** directory stores a binary file, which complies with the license of HiSilicon \(Shanghai\). You can see the following copyright information at the end of a license file that is stored in this directory: 125 126 ``` 127 Copyright (C) 2020 Hisilicon (Shanghai) Technologies Co., Ltd. All rights reserved. 128 ``` 129 130- The **hispark\_taurus\\sdk\_liteos\\uboot\\out\\boot** directory stores a binary U-Boot file compiled using **u-boot-2020.01** and **reg\_info\_hi3518ev300.bin** and following the **u-boot-2020.01** protocol. For details, see the readme files in the **third\_party\\uboot\\u-boot-2020.01\\Licenses** directory. 131- The **hispark\_aries\\sdk\_liteos\\uboot\\secureboot\_release** directory stores the open-source code of secure U-Boot, in which the HiSilicon-developed code complies with the HiSilicon \(Shanghai\) copyright statement based on the GPL license. You can see the following license and copyright information at the beginning of the license file that is stored in this directory: 132 133 ``` 134 / *Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED. 135 * 136 * This program is free software; you can redistribute it and/or modify it 137 * under the terms of the GNU General Public License as published by the 138 * Free Software Foundation; either version 2 of the License, or (at your 139 * option) any later version. 140 * ... * / 141 ``` 142 143- The notice file stored in the **hispark\_taurus\\NOTICE** directory describes three open-source software, namely **Das U-Boot 2020.01**, **mbed TLS 2.16.6**, and **fdk-aac v2.0.1**. 144 145### third\_party License Notice<a name="section129654513264"></a> 146 147The **third\_party\\ffmpeg\\ffmpeg-y** directory stores the open-source code of **ffmpeg**, in which the code complies with the open-source license notice of its own software version. For details, see the readme files in the **third\_party\\ffmpeg\\ffmpeg-y** directory. 148 149The **third\_party\\uboot\\u-boot-2020.01** directory stores the open-source code of U-Boot, which complies with the open-source license notice of its own software version. For details, see the readme files in the **third\_party\\uboot\\u-boot-2020.01\\Licenses** directory. 150 151## Repositories Involved<a name="section1371113476307"></a> 152 153device/hisilicon/build 154 155device/hisilicon/drivers 156 157device/hisilicon/hardware 158 159**device/hisilicon/hispark\_taurus** 160 161device/hisilicon/modules 162 163device/hisilicon/third\_party/ffmpeg 164 165device/hisilicon/third\_party/uboot 166 167vendor/hisilicon 168 169
