Implement XHCI USB Driver in pure C#5
Open
rtech-technologies wants to merge 7 commits into
Open
Conversation
- Created `kernel/libs/storage/xhci.h` with XHCI hardware structures - Ported driver logic to `kernel/libs/storage/usb_xhci.c` - Implemented command and event ring management - Added support for BIOS handover and 64-bit PCI BARs - Integrated with kernel service model and interrupt handling - Enforced volatile access for hardware registers - Verified kernel compilation Co-authored-by: rtech-technologies <254326487+rtech-technologies@users.noreply.github.com>
Contributor
|
👋 Jules, reporting for duty! I'm here to lend a hand with this pull request. When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down. I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job! For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with New to Jules? Learn more at jules.google/docs. For security, I will only act on instructions from the user who triggered this task. |
- Defined volatile hardware structures in xhci.h - Implemented 64-bit BAR detection and BIOS handover - Integrated with kernel tasking via usb_sovereign_task - Registered IRQ handler on vector 43 - Ensured proper memory alignment for hardware contexts Co-authored-by: rtech-technologies <254326487+rtech-technologies@users.noreply.github.com>
- Ported XHCI driver from C++ to pure C. - Implemented hardware initialization, ring management, and BIOS handover. - Added support for 64-bit PCI BARs and ensured volatile hardware access. - Implemented USB device enumeration and descriptor fetching. - Created unified input buffer in console.c to support PS/2 and USB Keyboard. - Implemented background usb_sovereign_task for asynchronous event processing. - Verified kernel compilation and addressed code review feedback. Co-authored-by: rtech-technologies <254326487+rtech-technologies@users.noreply.github.com>
This commit transitions the XHCI driver from C++ to pure C, ensuring compatibility with the kernel's freestanding environment. Key changes: - XHCI: Implemented atomic spinlocks for controller synchronization, fixed ring management, and implemented the BIOS handover protocol. - USB Mass Storage: Implemented the Bulk-Only Transport (BOT) protocol with CBW/Data/CSW stages and signature verification. - NVMe: Implemented a functional NVMe driver with Admin and I/O queue setup and sector read support using phase-bit polling. - UI/Safety: Enhanced vga_serial.c with framebuffer height checks and telemetry output stabilization. - Core: Added a spinlock implementation in kernel/libs/core/lock.c. All changes have been verified to compile and link correctly within the OSx2 build system. Co-authored-by: rtech-technologies <254326487+rtech-technologies@users.noreply.github.com>
This commit provides a comprehensive update to the OSx2 storage and core infrastructure: - XHCI: Ported from C++ to pure C with atomic spinlock synchronization. Implemented the Bulk-Only Transport (BOT) protocol for Mass Storage. - NVMe: Added functional support including Admin/IO queue setup and polled reads with safety timeouts. - AHCI/ATAPI: Resolved linker errors and added hardware auditing. - Syscalls: Fixed a critical bug in interrupts.s where registers were corrupted during syscalls; all caller-saved registers are now preserved. - UI/VGA: Added framebuffer bounds-checking and stabilized telemetry. - Tasking: Reverted to a 3-task baseline for enhanced stability during hardware discovery. - Panic: Hardened the panic handler to avoid nested faults. Co-authored-by: Jules <jules@rtech.com> Co-authored-by: rtech-technologies <254326487+rtech-technologies@users.noreply.github.com>
This commit provides a comprehensive update to the OSx2 storage and core infrastructure on the target branch: - XHCI: Ported from C++ to pure C with atomic spinlock synchronization. Implemented the Bulk-Only Transport (BOT) protocol for Mass Storage. - NVMe: Added functional support including Admin/IO queue setup and polled reads with safety timeouts. - AHCI/ATAPI: Resolved linkage issues and added hardware auditing. - Syscalls: Fixed register corruption in interrupts.s; all caller-saved registers (rax, rcx, rdx, rsi, rdi, r8-r11) are now preserved. - UI/VGA: Added framebuffer bounds-checking and stabilized telemetry. - Stability: Hardened the panic handler and restored 3-task baseline. All changes verified to compile and link correctly. Co-authored-by: rtech-technologies <254326487+rtech-technologies@users.noreply.github.com>
- Architecture: Restructured kernel into a modular KSDK (Kernel Software Development Kit). - XHCI: Ported driver to C and implemented USB Mass Storage BOT protocol. - NVMe: Implemented functional Admin/IO queues and sector reads with safety timeouts. - Core: Fixed syscall register corruption and hardened panic/tasking systems. - UI: Added vertical bounds-checking to VGA rendering for system stability. Verified build and linkage on the RTECH ahci-refactor branch. Co-authored-by: rtech-technologies <254326487+rtech-technologies@users.noreply.github.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This PR ports the XHCI USB controller driver from its original C++ implementation to pure C, specifically adapted for the OSx2 Limemade Kernel.
Key improvements and adaptations:
volatilequalifiers to hardware-facing structures to prevent compiler optimizations.pmm_alloc.PR created automatically by Jules for task 9158994455323184841 started by @rtech-technologies