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hardening
EHCI (OptiPlex 7010 / Q77 and similar Intel PCH):
- enumerate *both* EHCI controllers (00:1a.0 + 00:1d.0), not just the first
- hub support: read the hub class descriptor, power/reset each port via hub
class requests, read the child speed, then drive the child with split
transactions carrying the hub's address and port (TT). On 7-series PCH the
root port presents the integrated Rate Matching Hub (8087:0024, class 9)
and the mouse/keyboard sit behind it; without this the driver stopped at
"no HID mouse/keyboard endpoint in config".
- HID mouse *and* keyboard, boot protocol + idle, per-device periodic QH
chained into the frame list, per-device report buffers and counters
- periodic re-arm follows the standard shape (qTD re-activated, Next-qTD
re-linked); the HC owns the status/toggle overlay
- DMA from the page allocator inside [16 MiB, 4 GiB): EHCI programs 32-bit
addresses and the page bitmap spans all RAM
- 2 ms recovery after SET_ADDRESS
xHCI:
- scratchpad buffers (HCSPARAMS2) and MaxSlotsEn > 1, with per-slot EP0 and
interrupt rings plus per-slot device contexts
- DMA from the page allocator instead of the heap allocator
- boot protocol + idle, mouse + keyboard, first-report diagnostics
- transfer events are routed to every device before matching a waiter, so a
second device's enumeration cannot swallow an armed device's report
shared:
- rsnix/src/hid.rs: HID usage -> scancode-set-1 tables, one scancode FIFO
feeding ps2::feed_scancode, per-device boot-keyboard report differ
- WM input pump polls PS/2 -> UHCI -> EHCI -> xHCI
- memory::alloc_pages_range(count, min, max) for bounded DMA allocations
QEMU coverage: make test-usb (EHCI + xHCI, mouse + keyboard). QEMU's EHCI
split path delivers only the first report for FS devices, so repeated-report
delivery and the RMH path remain hardware-test items.
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wm: FOCUSED is now a plain window id — window 0 (home terminal) is an
ordinary focusable window in the z-order. The CONSOLE sentinel
(usize::MAX) and the focused()==0 special cases are gone; focus_console()
is an alias for focus(0). Desktop clicks focus window 0. The WM input
pump routes every key unconditionally: IRQ ring -> pump -> focused
window's owner; nothing polls the scancode rings directly any more.
tty: read_line() reads from the calling task's message queue (the old
global-ring read_line and the duplicate read_line_from_queue are merged);
raw mode (read_byte/try_read_byte) consumes the same queue;
interrupt_pressed drains the queue instead of the ring.
shell: task 0 owns home terminal window 0 and blocks on its queue like a
windowed shell; cat/hexdump stdin paths pass the home terminal handle.
sched: watchdog comments updated (shell parks on recv_blocking).
Verified in QEMU: F1 spawns terminals, F2 cycles focus home->term1->
term2, keystrokes land only in the focused window, ^C cancels a line,
edit runs raw over the queue and exits to a working prompt; test-disk
regression PASS.
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ox.saturating_sub(pad) / oy.saturating_sub(pad) — plain subtraction
on usize wraps to usize::MAX when the window sits at x=0 or y=0,
causing composite_rect to draw at the far end of the framebuffer
instead of near the window. Also broke drag-to-move when stuck
against the top or left edge.
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- draw_window_border(): 1px border around every window except the root.
Blue (TITLE_BG_FOCUS) when focused, grey (TITLE_BG) when not.
- focus() / focus_console(): composite the full window area + border pad
on both the old and new focused windows (was title-bar-only before).
- flush(): include border pad in the damage rectangle.
- move_window(): redraw border area at old and new positions.
- Remove redundant term.flush() from tty Focus handler (focus() covers it).
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- tty: read_line_from_queue() now takes &mut Terminal and handles
TaskMsg::Focus: Focus(true) sets ACTIVE to the terminal,
Focus(false) clears it. This fixes the bug where the console
shell's gop_print! output was redirected to the soft terminal
even after focus switched away from it.
- shell: run_windowed() passes the terminal through to read_line_from_queue.
- wm: remove noisy per-key debug logging from pump_main.
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Architecture:
- vt: ACTIVE terminal redirect — when set, all gop_print!/put_char/write_str
go there instead of HOME. Terminal::from_buffer() renders into a
WM-owned pixel buffer.
- tty: read_line_from_queue() — canonical-mode line input from the task's
own message queue (TaskMsg::Key). Returns None on Close.
- shell: run_windowed() — same shell as the console but reads from the
message queue. Returns on ^D or window close.
- wm: F1 calls SPAWN_TERMINAL_CB (set by rsdos). No shell logic in the WM.
- rsdos: terminal_task callback + terminal_entry task — creates a 640x400
chrome window, wires up Terminal::from_buffer, sets ACTIVE, runs
shell::run_windowed(), cleans up on exit.
- shell: 'term' debug command that invokes the callback directly and
logs each step to serial.
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- wm rewrite: chrome flag per window, create_home_window for the
console (window 0, chrome-less, bottom-pinned, never closed),
composite_rect fills desktop background then blits windows bottom-to-top,
draw_window_intersect handles chrome-less windows, hit_test returns
Content for chrome-less, destroy/move_window no-op for id 0.
- vt: add window_params() so main.rs can wire the Terminal to wm window 0.
- main.rs: create home terminal window 0 and attach Terminal after wm::init().
- Focus fix: focus(0) now stores CONSOLE sentinel (not raw 0) so
focused() returns None when the home terminal has focus. Without this,
closing a GUI window left FOCUSED=0, which tty::poll_key() interpreted
as 'a GUI app has focus', spinning forever and swallowing all keyboard
input.
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- Refactor vt.rs into a per-instance Terminal struct (owned cell/rendered
grids, cursor, ANSI parser, scroll state), rendering glyphs into a
caller-owned pixel buffer with dirty-region blitting
- Add gop buffer primitives (buffer_glyph_px, buffer_shift_up) and keep
the legacy vt:: API as thin wrappers around the home terminal
- Remove the now-obsolete scroll hook and shadow scroll path
- Home terminal renders into its own buffer; window_id stays None until
the WM integration lands
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The console's batched scroll (gop::shift_up_n) shifts the whole shared
shadow, which dragged any composited window pixels up with it. Add a
scroll hook so the window manager re-composites every visible window
after a console scroll, restoring them at their fixed positions.
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- Track the active mouse gesture (none / window-move / app-stroke) so a
press on the title bar becomes a move drag instead of leaking Move
events into the app's content
- Add move_window (clamped to the canvas, repaint old + new regions)
- Always deliver MouseKind::Release so a stroke that ends outside the
window still terminates
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- Add the wm window-manager facility per ADR 0004: overlapping
pixel-surface windows, damage-rectangle compositing, WM-drawn title
bar, focus/minimize/close, and F1-F4 keybindings
- Add gop shadow compositing primitives and vt::repaint_region so the
console stays layer 0 beneath windows
- Route mouse (absolute coords, press/release edges) and keyboard
(focus-aware input pump) to the focused window
- Add the rspaint drawing-program crate (pen, 8 colors, clear) and shell
draw/windows/restore commands
- Extend TaskMsg with AppMouse/Focus/Close and document the design in
CONTEXT.md + ADR 0004
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