Spexeah/Asuro
4
1
Fork 0
Code Issues 20 Pull Requests Actions Packages Projects 1 Releases Wiki Activity

GPU Stack, V8086 Monitor & BGA Driver #50

Merged
Aaron merged 6 commits from feature/gpu-stack-v8086-bga into develop 2026-03-07 20:56:21 +00:00
Conversation 1 Commits 6 Files Changed 17
+2062 -80
6 Commits
Author SHA1 Message Date
t3hn3rd 36ec7bfdb6 refactor: move program registration from kernel to progmanager
continuous-integration/drone/pr Build is passing
Details
continuous-integration/drone/push Build is passing
Details 
- Remove diskcmd, diskutil, notepad, partcmd, volcmd init calls and
  uses from kernel.pas — these are programs, not kernel subsystems.
- Move their initialization into progmanager.init() alongside the
  other baked-in programs (md5sum, base64_prog, dhclient, etc.).
- Remove diskcmd, diskutil, notepad from kernel's uses clause.
- Add a splash.update() call for the auto-mount volumes step.
- Suppress FPC warnings in compile_sources.sh (-v0e instead of -v0ew).
 2026-03-07 20:39:43 +00:00
t3hn3rd 6c3c0e63d5 fix: Rebase borked kernel.pas - added missing deps 2026-03-07 20:31:38 +00:00
t3hn3rd df71c59aea feature: add boot splash screen with embedded TGA logo 
- New splash unit (src/prog/splash.pas) displays a centered logo,
  progress bar and status label during kernel boot.  Manually drives
  LVGL rendering + video.Flush since gfxd isn't running yet.
- Embed img/asuro.tga into the kernel via NASM incbin stub
  (src/stub/splash_tga.asm), assembled in compile_stub.sh.
- Build an lv_image_dsc_t at runtime from the decoded TGA pixel data
  and display it at 50% scale using lv_image_set_scale(128).
- Move LVGL init earlier in kernel.pas (right after video enable) so
  the splash screen is available before VFS/drivers/network init.
- Sprinkle splash.update() calls throughout kmain to show boot
  progress (VFS → drivers → buses → network → tests → desktop).
- Fix targa.pas parser: rename Magic→IDLength, remove erroneous Data
  pointer field, compute pixel offset correctly (buffer+18+IDLength),
  advance source pointer per pixel, handle bottom-to-top origin flip.
- Unit tests moved before desktop.init; splash.teardown called at 100%
  just before handing off to the desktop environment.
 2026-03-07 20:20:00 +00:00
t3hn3rd 97244a2b95 Rebase: Changes made to conform with rebase on develop 2026-03-07 20:17:24 +00:00
t3hn3rd ecca496978 fix: show live GPU/resolution info in System Information 
- desktop: Resolution/Graphics fields now read from video frontbuffer
  and gpu.activeDriverName instead of static multiboot/hardcoded values
- gpu: markAvailable sets ActiveName when no driver is active yet, so
  the initial VBE boot driver is reported before any setMode call
- kernel: whitespace cleanup
 2026-03-07 20:16:26 +00:00
t3hn3rd e52b4a9763 feature: GPU driver framework with BGA, V86 monitor, and runtime resolution switching 
- GPU Framework (gpu.pas): Priority-ordered GPU driver registry with
  mode-change callback system. Drivers register with a priority (lower =
  tried first). After successful setMode, fires registered callbacks in
  order (video → LVGL → desktop) for fully decoupled resolution updates.

- BGA Driver (bga.pas): Bochs Graphics Adapter via drivermanagement PCI
  auto-detection (class=$03 subclass=$00 wildcard). Programs display via
  I/O ports $01CE/$01CF, reads framebuffer from PCI BARs with VMware SVGA
  fallback. Supports arbitrary resolutions (1920x1080, 2560x1440, etc).

- SETRES Command (setres.pas): Runtime resolution switching — just calls
  gpu.setMode; video reinit, LVGL buffer realloc, and desktop relayout
  all fire automatically via GPU mode-change callbacks.

- VESA/VBE: Registered as GPU fallback driver (priority 50), uses V86
  INT 10h for VBE mode switching.

- TSS: Fix SS0 from $08 (code segment) to $10 (data segment); add
  set_esp0/get_esp0 helpers for V86 ring-0 stack management.

- VMM: Add map_page_user() for identity-mapping first 4MB with User bit
  (required for V86 IVT/BDA/video ROM access).

- Desktop: relayout procedure + GPU callback registration for automatic
  dock/watermark repositioning on resolution change.

- V86 Monitor (v86.pas): Full Virtual 8086 mode monitor for executing
  real-mode BIOS interrupts from protected mode. Naked GPF handler with
  instruction emulation (INT, IRET, CLI, STI, PUSHF/POPF, IN/OUT, HLT,
  0x66 prefix for 32-bit variants). Thunk-based entry via IRET into VM86.

- Kernel init order: gpu.init → video.init → vesa.init → bga.init;
  drivermanagement.init moved earlier (before video) so PCI scan detects
  BGA before first use.
 2026-03-07 20:16:25 +00:00