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Liav A bfffe88de5 Kernel/HID: Untie the PS2 protocol, i8042 hardware and generic devices
For a very long time, the kernel had only support for basic PS/2 devices
such as the PS2 AT keyboard and regular PS2 mouse (with a scroll wheel).

To adapt to this, we had very simple abstractions in place, essentially,
the PS2 devices were registered as IRQ handlers (IRQ 1 and 12), and when
an interrupt was triggered, we simply had to tell the I8042Controller to
fetch a byte for us, then send it back to the appropriate device for
further processing and queueing of either a key event, or a mouse packet
so userspace can do something meaningful about it.

When we added the VMWare mouse integration feature it was easily adapted
to this paradigm, requiring small changes across the handling code for
these devices.

This patch is a major cleanup for any future advancements in the HID
subsystem.
It ensures we do things in a much more sane manner:
- We stop using LockRefPtrs. Currently, after the initialization of the
  i8042 controller, we never have to change RefPtrs in that class, as we
  simply don't support PS2 hotplugging currently.
  Also, we remove the unnecessary getters for keyboard and mouse devices
  which also returned a LockRefPtr.
- There's a clear separation between PS2 devices and the actual device
  nodes that normally exist in /dev. PS2 devices are not polled, because
  when the user uses these devices, they will trigger an IRQ which when
  is handled, could produce either a MousePacket or KeyEvent, depending
  on the device state.
  The separation is crucial for buses that are polled, for example - USB
  is a polled bus and will not generate an IRQ for HID devices.
- There's a clear separation in roles of each structure. The PS2 devices
  which are attached to a I8042Controller object are managing the device
  state, while the generic MouseDevice and KeyboardDevice manage all
  related tasks of a CharacterDevice, as well as interpreting scan code
  events and mouse relative/absolute coordinates.
2023-04-09 18:11:37 +02:00
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AK AK: Bake CLion IDE check into AK_COMPILER_CLANG 2023-04-08 13:43:25 +02:00
Base Base: Add playback state data to the video test page 2023-04-08 22:04:14 +02:00
Documentation Documentation+Ports: Be upfront about dependencies 2023-04-08 15:20:33 -07:00
Kernel Kernel/HID: Untie the PS2 protocol, i8042 hardware and generic devices 2023-04-09 18:11:37 +02:00
Ladybird Ladybird: Add tooltip to reset zoom level button 2023-03-31 21:46:56 +01:00
Meta Meta+Toolchain: Redirect GDB error output to stdout before grepping 2023-04-09 16:51:11 +02:00
Ports Ports: Repair the launcher icons of 'stpuzzles' 2023-04-09 16:50:35 +02:00
Tests LibGfx: Correctly decode webp lossless with small palette and odd width 2023-04-09 00:14:15 +02:00
Toolchain Meta+Toolchain: Redirect GDB error output to stdout before grepping 2023-04-09 16:51:11 +02:00
Userland LibWeb/HTML: Use correct spec link for multipart/form-data encoding 2023-04-09 17:59:36 +02:00
.clang-format Meta: Switch to clang-format-15 as the standard formatter 2022-12-03 23:52:23 +00:00
.clang-tidy Meta: Disable the misc-no-recursion check in clang-tidy 2023-03-18 16:34:41 +01:00
.editorconfig Meta: Add .editorconfig 2022-09-10 17:32:55 +01:00
.gitattributes Repository: Protect port patches from CRLF/LF normalization 2022-01-12 01:08:38 +01:00
.gitignore Meta: Ignore vim's .exrc config 2022-10-06 16:06:50 +01:00
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.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore LibJS: Add DisposableStack{, Prototype, Constructor} 2023-01-23 09:56:50 +00:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
.ycm_extra_conf.py Meta: Remove i686 references in YCM configuration 2022-12-28 11:53:41 +01:00
azure-pipelines.yml CI: Remove extraneous toolchain job from Azure CI 2022-12-28 15:26:12 -05:00
CMakeLists.txt Meta: Install PCI and USB ID files directly into /res 2023-04-01 08:48:28 -04:00
CONTRIBUTING.md Meta: Add Jelle Raaijmakers to list of project maintainers :^) 2023-01-05 00:32:05 +01:00
LICENSE Meta: Update the year range in LICENSE :^) 2023-01-01 09:38:07 +00:00
README.md README: Add a jump section for easy access to documentation 2023-03-28 21:23:45 +01:00
SECURITY.md Meta: Add a security policy 2022-06-29 03:29:27 +00:00

SerenityOS

Graphical Unix-like operating system for x86-64 computers.

GitHub Actions Status Azure DevOps Status Fuzzing Status Sonar Cube Static Analysis Discord

FAQ | Documentation | Build Instructions

About

SerenityOS is a love letter to '90s user interfaces with a custom Unix-like core. It flatters with sincerity by stealing beautiful ideas from various other systems.

Roughly speaking, the goal is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix. This is a system by us, for us, based on the things we like.

You can watch videos of the system being developed on YouTube:

Screenshot

Screenshot as of b36968c.png

Features

  • Modern x86 64-bit kernel with pre-emptive multi-threading
  • Browser with JavaScript, WebAssembly, and more (check the spec compliance for JS, CSS, and Wasm)
  • Security features (hardware protections, limited userland capabilities, W^X memory, pledge & unveil, (K)ASLR, OOM-resistance, web-content isolation, state-of-the-art TLS algorithms, ...)
  • System services (WindowServer, LoginServer, AudioServer, WebServer, RequestServer, CrashServer, ...) and modern IPC
  • Good POSIX compatibility (LibC, Shell, syscalls, signals, pseudoterminals, filesystem notifications, standard Unix utilities, ...)
  • POSIX-like virtual file systems (/proc, /dev, /sys, /tmp, ...) and ext2 file system
  • Network stack and applications with support for IPv4, TCP, UDP; DNS, HTTP, Gemini, IMAP, NTP
  • Profiling, debugging and other development tools (Kernel-supported profiling, detailed program analysis with software emulation in UserspaceEmulator, CrashReporter, interactive GUI playground, HexEditor, HackStudio IDE for C++ and more)
  • Libraries for everything from cryptography to OpenGL, audio, JavaScript, GUI, playing chess, ...
  • Support for many common and uncommon file formats (PNG, JPEG, GIF, MP3, WAV, FLAC, ZIP, TAR, PDF, QOI, Gemini, ...)
  • Unified style and design philosophy, flexible theming system, custom (bitmap and vector) fonts
  • Games (Solitaire, Minesweeper, 2048, chess, Conway's Game of Life, ...) and demos (CatDog, Starfield, Eyes, mandelbrot set, WidgetGallery, ...)
  • Every-day GUI programs and utilities (Spreadsheet with JavaScript, TextEditor, Terminal, PixelPaint, various multimedia viewers and players, Mail, Assistant, Calculator, ...)

... and all of the above are right in this repository, no extra dependencies, built from-scratch by us :^)

Additionally, there are over two hundred ports of popular open-source software, including games, compilers, Unix tools, multimedia apps and more.

How do I read the documentation?

Man pages are available online at man.serenityos.org. These pages are generated from the Markdown source files in Base/usr/share/man and updated automatically.

When running SerenityOS you can use man for the terminal interface, or help for the GUI.

Code-related documentation can be found in the documentation folder.

How do I build and run this?

See the SerenityOS build instructions. Serenity runs on Linux, macOS (aarch64 might be a challenge), Windows (with WSL2) and many other *Nixes with hardware or software virtualization.

Get in touch and participate!

Join our Discord server: SerenityOS Discord

Before opening an issue, please see the issue policy.

A general guide for contributing can be found in CONTRIBUTING.md.

Authors

And many more! See here for a full contributor list. The people listed above have landed more than 100 commits in the project. :^)

License

SerenityOS is licensed under a 2-clause BSD license.