beenull/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-11-22 23:50:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6
ladybird/Kernel
History
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
..
API Kernel/HID: Untie the PS2 protocol, i8042 hardware and generic devices 2023-04-09 18:11:37 +02:00
Arch Kernel/HID: Untie the PS2 protocol, i8042 hardware and generic devices 2023-04-09 18:11:37 +02:00
Bus Kernel: Mark a bunch of NonnullRefPtrs also const to ensure immutability 2023-04-08 13:44:21 +02:00
Devices Kernel/HID: Untie the PS2 protocol, i8042 hardware and generic devices 2023-04-09 18:11:37 +02:00
FileSystem Kernel: Remove redundant HID name from all associated files 2023-04-09 18:11:37 +02:00
Firmware Kernel/PCI: Hold a reference to DeviceIdentifier in the Device class 2023-01-26 23:04:26 +01:00
Graphics Kernel: Stop using *LockRefPtr for Kernel::Timer 2023-04-04 10:33:42 +02:00
Heap Kernel+LibC: Move name length constants to Kernel/API from limits.h 2023-01-21 10:43:59 -07:00
Interrupts Everywhere: Use ReadonlySpan<T> instead of Span<T const> 2023-02-08 19:15:45 +00:00
Library Kernel: Switch LockRefPtr<Inode> to RefPtr<Inode> 2023-03-09 21:54:59 +01:00
Locking Kernel: Don't ref/unref the holder thread in Mutex 2023-04-04 10:33:42 +02:00
Memory Kernel: Crash process instead of panicking on KSYMS access 2023-04-09 11:10:37 +03:00
Net Kernel: Simplify Process factory functions 2023-04-04 10:33:42 +02:00
Prekernel Kernel: Unify x86-64 assembly snippets naming for RDSEED & RDRAND 2023-01-25 23:17:36 +01:00
Storage Kernel: Mark a bunch of NonnullRefPtrs also const to ensure immutability 2023-04-08 13:44:21 +02:00
Syscalls Kernel: Remove redundant HID name from all associated files 2023-04-09 18:11:37 +02:00
Tasks Kernel: Simplify Process factory functions 2023-04-04 10:33:42 +02:00
Time Kernel: Implement TimeManagement::boot_time() for aarch64 2023-04-06 21:19:58 +03:00
TTY Kernel: Remove redundant HID name from all associated files 2023-04-09 18:11:37 +02:00
AddressSanitizer.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
AddressSanitizer.h Everywhere: Use bgianf@serenityos.org for my copyright attribution 2021-04-22 21:15:54 +02:00
Assertions.h Kernel: Replace VERIFY_NOT_REACHED with TODO_AARCH64 2022-10-16 17:35:37 +02:00
AtomicEdgeAction.h Kernel: Add per platform Processor.h headers 2021-10-14 01:23:08 +01:00
BootInfo.h Kernel: Move Memory/PageDirectory.{cpp,h} to arch-specific directory 2023-01-27 11:41:43 +01:00
CMakeLists.txt Kernel: Remove redundant HID name from all associated files 2023-04-09 18:11:37 +02:00
CommandLine.cpp Everywhere: Stop using NonnullOwnPtrVector 2023-03-06 23:46:35 +01:00
CommandLine.h Everywhere: Remove NonnullOwnPtr.h includes 2023-03-06 23:46:35 +01:00
Coredump.cpp Kernel: Stop using *LockRefPtr for Process pointers 2023-04-04 10:33:42 +02:00
Coredump.h Kernel: Mark a bunch of NonnullRefPtrs also const to ensure immutability 2023-04-08 13:44:21 +02:00
CrashHandler.cpp Kernel: Add optional userspace backtrace to Process::crash 2023-02-08 18:19:48 +00:00
Credentials.cpp Everywhere: Use ReadonlySpan<T> instead of Span<T const> 2023-02-08 19:15:45 +00:00
Credentials.h Everywhere: Use ReadonlySpan<T> instead of Span<T const> 2023-02-08 19:15:45 +00:00
Debug.h.in Kernel: Add support for Intel HDA 2023-03-25 21:27:03 +01:00
DoubleBuffer.cpp Kernel: Move InterruptDisabler out of Arch directory 2022-10-17 20:11:31 +02:00
DoubleBuffer.h Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
embedmap.sh Kernel: Make new kernel build process work on macOS 2021-07-15 11:04:30 +02:00
ExecutionMode.h Kernel: Factor our PreviousMode into RegisterState::previous_mode 2023-01-27 11:41:43 +01:00
Forward.h Kernel/FileSystem: Simplify the ProcFS significantly 2023-02-24 22:14:18 +01:00
FutexQueue.cpp Kernel: Propagate OOM conditions out of sys$futex 2022-07-21 16:39:22 +02:00
FutexQueue.h AK+Kernel: Add AK::AtomicRefCounted and use everywhere in the kernel 2022-08-20 17:15:52 +02:00
generate-version-file.sh Kernel: Bake version information into the Kernel 2022-10-14 13:45:33 +02:00
InterruptDisabler.h Kernel: Move InterruptDisabler out of Arch directory 2022-10-17 20:11:31 +02:00
IOWindow.cpp Kernel/PCI: Hold a reference to DeviceIdentifier in the Device class 2023-01-26 23:04:26 +01:00
IOWindow.h Kernel: Remove declarations for non-existent methods 2023-01-27 20:33:18 +00:00
Jail.cpp Kernel: Make the Jails' internal design a lot more sane 2023-03-12 10:21:59 -06:00
Jail.h Kernel: Mark a bunch of NonnullRefPtrs also const to ensure immutability 2023-04-08 13:44:21 +02:00
KBuffer.h Everywhere: Remove string.h include from AK/Traits.h and resolve fallout 2023-01-21 10:43:59 -07:00
KBufferBuilder.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
KBufferBuilder.h Kernel: Remove includes to LibC stdarg definitions 2023-03-01 19:36:53 -07:00
KLexicalPath.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
KLexicalPath.h Everywhere: Pass AK::StringView by value 2021-11-11 01:27:46 +01:00
kprintf.cpp Kernel: Remove includes to LibC stdarg definitions 2023-03-01 19:36:53 -07:00
kstdio.h Kernel: Remove includes to LibC stdarg definitions 2023-03-01 19:36:53 -07:00
KString.cpp Kernel: Add an error propagating KString::format(..) API :^) 2021-11-30 11:16:35 +01:00
KString.h AK: Add support for "debug only" formatters 2023-01-13 21:09:26 +00:00
KSyms.cpp Kernel: Add optional userspace backtrace to Process::crash 2023-02-08 18:19:48 +00:00
KSyms.h Kernel: Add ability to dump backtrace from provided frame pointer 2022-10-01 14:09:01 +02:00
MiniStdLib.cpp Kernel: Remove i686 support 2022-12-28 11:53:41 +01:00
mkmap.sh Kernel: Use the toolchain's nm in mkmap.sh 2021-12-30 18:10:51 +01:00
Multiboot.h Kernel: Add basic aarch64 support to MemoryManager 2022-09-12 00:56:44 +01:00
Panic.cpp Kernel: Reorganize Arch/x86 directory to Arch/x86_64 after i686 removal 2022-12-28 11:53:41 +01:00
Panic.h Kernel: Implement __panic() for the aarch64 Kernel 2022-05-03 21:53:36 +02:00
PerformanceEventBuffer.cpp AK+Kernel: Add includes before removing Kernel/ProcessExposed.h 2023-02-24 22:14:18 +01:00
PerformanceEventBuffer.h Everywhere: Remove needless copies of Error / ErrorOr instances 2023-02-10 09:08:52 +00:00
PerformanceManager.h AK+Kernel: Add includes before removing Kernel/ProcessExposed.h 2023-02-24 22:14:18 +01:00
PhysicalAddress.h Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
Process.cpp Kernel: Implement signal trampoline for aarch64 2023-04-06 21:19:58 +03:00
Process.h Kernel: Restructure execve to ensure Process::m_space is always in use 2023-04-06 20:30:03 +03:00
ProcessGroup.cpp Kernel: Make ProcessGroup a ListedRefCounted and fix two races 2023-04-05 11:37:27 +02:00
ProcessGroup.h Kernel: Make ProcessGroup a ListedRefCounted and fix two races 2023-04-05 11:37:27 +02:00
ProcessList.cpp Kernel: Make the Jails' internal design a lot more sane 2023-03-12 10:21:59 -06:00
Random.cpp Kernel/aarch64: Add TimeManagement fallback entropy source to Random.cpp 2023-02-08 18:19:48 +00:00
Random.h Kernel: Turn lock ranks into template parameters 2023-01-02 18:15:27 -05:00
SanCov.cpp Kernel: Add some implied auto qualifiers 2021-12-30 14:32:17 +01:00
Scheduler.cpp Kernel: Stop using *LockRefPtr for Thread 2023-04-04 10:33:42 +02:00
Scheduler.h Kernel: Turn lock ranks into template parameters 2023-01-02 18:15:27 -05:00
ScopedCritical.cpp Kernel: Move ScopedCritical.cpp to Kernel base directory 2022-12-29 19:32:20 -07:00
ScopedCritical.h Kernel: Move ScopedCritical.cpp to Kernel base directory 2022-12-29 19:32:20 -07:00
Sections.h Kernel/aarch64: Change base address of the kernel to 0x2000000000 2023-01-24 14:54:44 +00:00
StdLib.cpp Everywhere: Run clang-format 2022-12-03 23:52:23 +00:00
StdLib.h Kernel/StdLib: Change try_copy_n_to_user to copy_n_to_user 2023-03-24 18:25:12 +01:00
Syscall.cpp Kernel: Add optional userspace backtrace to Process::crash 2023-02-08 18:19:48 +00:00
Thread.cpp Kernel: Make dispatch_signal work for aarch64 2023-04-06 21:19:58 +03:00
Thread.h Kernel: Stop using *LockRefPtr for Kernel::Timer 2023-04-04 10:33:42 +02:00
ThreadBlockers.cpp Kernel: Stop using *LockRefPtr for ProcessGroup 2023-04-04 10:33:42 +02:00
ThreadTracer.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ThreadTracer.h Kernel+Userland: Remove dependency on i386-specific registers 2022-12-28 11:53:41 +01:00
TimerQueue.cpp Kernel: Stop using *LockRefPtr for Kernel::Timer 2023-04-04 10:33:42 +02:00
TimerQueue.h Kernel: Stop using *LockRefPtr for Kernel::Timer 2023-04-04 10:33:42 +02:00
UBSanitizer.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
UnixTypes.h Kernel: Add support for SA_SIGINFO 2022-03-04 20:07:05 +01:00
UserOrKernelBuffer.cpp Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T> 2021-11-08 01:10:53 +01:00
UserOrKernelBuffer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
VirtualAddress.h Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
WaitQueue.cpp Kernel: Don't register thread as custom data for WaitQueueBlocker 2021-08-24 01:57:11 +02:00
WaitQueue.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
WorkQueue.cpp Kernel: Simplify Process factory functions 2023-04-04 10:33:42 +02:00
WorkQueue.h Kernel: Stop using *LockRefPtr for Thread 2023-04-04 10:33:42 +02:00