Fix PS/2 mouse ISR blocking; convert USB polling & GFX refresh to processes; remove dead scheduler

PS/2 Mouse:
- Fix ISR spin-blocking by reading port $60 directly with inb() instead
  of calling mouse_read(), which uses mouse_wait_long (100k iterations)
  and would stall the interrupt handler waiting for the next packet byte.

Timer (PIT):
- Increase PIT frequency from ~1024 Hz to ~8 kHz (divisor 1193 -> 149)
  for more granular timer ticks.

Graphics Refresh:
- Replace timer-hook-driven rendering (driver/timers/graphicsrefresh)
  with a dedicated 'gfxd' process that runs a continuous render loop,
  keeping the vCPU active to avoid NEM/Hyper-V pause-loop descheduling.
- Move uidebug from driver/video/ to prog/.
- Update FPS calculation to account for 8 kHz tick rate.

USB Hotplug:
- Replace timer-hook-driven polling (driver/timers/usbhotplug) with a
  dedicated 'usbd' daemon process that sleeps 1s between poll cycles.
- Add bounds check in usbcore.usb_check_hotplug for empty HC list.

Cleanup:
- Remove old scheduler unit (superseded by processmanager/contextswitcher).
- Remove tss unit and tss.init() call from kernel.
- Remove unused syslog import from contextswitcher.
- Reduce BASE_QUANTUM from 8 to 5.

.drone.yml

@@ -24,7 +24,7 @@ steps:
       - find . -type f -print0 | xargs -0 dos2unix
       - chmod +x /drone/src/*.sh
       - /drone/src/compile.sh
-
+      
   - name: upload-iso-artifact
     image: alpine/git
     depends_on:
@@ -49,4 +49,18 @@ steps:
         -H "Authorization: token $GITEA_TOKEN" || echo "No previous latest version found."
       - |
         curl -X PUT https://gitea.spexeah.com/api/packages/Spexeah/generic/asuro-iso/latest/Asuro.iso \
-        -H "Authorization: token $GITEA_TOKEN" --upload-file "Asuro-$(git rev-parse --short HEAD).iso"
+        -H "Authorization: token $GITEA_TOKEN" --upload-file "Asuro-$(git rev-parse --short HEAD).iso"
+
+  - name: msg status
+    image: appleboy/drone-discord
+    failure: ignore
+    depends_on:
+      - compile
+    when:
+      status: [success, failure, changed]
+    settings:
+      webhook_id:
+        from_secret: discord_webhook_id
+      webhook_token:
+        from_secret: discord_webhook_secret
+      message: "**Asuro Build**\n\n{{#success build.status}}✅ Build successful!\n\n{{else}}❌ Build failed!\n\n{{/success}}Repository: `{{repo.namespace}}/{{repo.name}}`\nBranch: `{{commit.branch}}`\nCommit: `{{commit.sha}}`\nAuthor: `{{commit.author}} <{{commit.email}}>`\n\nGitea Diff: [Link](<{{commit.link}}>)\nDrone Build: [Link](<{{build.link}}>)\n\nMessage: {{commit.message}}"

.gitattributes

@@ -1 +1,8 @@
-* text=auto eol=lf
+* text=auto eol=lf
+lvglh/** linguist-vendored
+lvgl/** linguist-vendored
+.vscode/* linguist-vendored
+lib/* linguist-generated
+release/* linguist-generated
+iso/* linguist-generated
+*.asm linguist-detectable

.gitignore

@@ -11,3 +11,8 @@
 /*.img
 src/include/asuro.pas
 localenv.json
+/lvgl/
+dockerout.txt
+AGENTS.md
+*.log
+/doc/*.md

.mailmap

@@ -0,0 +1,13 @@
+# Map all Aaron identities to a single preferred identity
+Aaron Hance <[email protected]> aaron <aaron@6dbc8c32-bb84-406f-8558-d1cf31a0ab0c>
+Aaron Hance <[email protected]> aaronhance <[email protected]>
+Aaron Hance <[email protected]> aaron hance <[email protected]>
+Aaron Hance <[email protected]> Aaron <[email protected]>
+
+# Map all Kieron identities to a single preferred identity
+Kieron Morris <[email protected]> kieron <kieron@6dbc8c32-bb84-406f-8558-d1cf31a0ab0c>
+Kieron Morris <[email protected]> Kieron <[email protected]>
+Kieron Morris <[email protected]> t3hn3rd <[email protected]>
+
+# Map goose's multiple identities
+goose <goose@6dbc8c32-bb84-406f-8558-d1cf31a0ab0c> goose <[email protected]>

Dockerfile

@@ -5,14 +5,11 @@ VOLUME ["/code"]
 ENV DEBIAN_FRONTEND=noninteractive
 RUN dpkg --add-architecture i386
 RUN apt-get update && apt-get install -y \
-	curl dos2unix wget git make nasm binutils xorriso grub-pc-bin \
-	gcc-multilib g++-multilib && \
+	curl dos2unix wget git make nasm binutils xorriso grub-pc-bin gcc gcc-multilib && \
 	apt-get clean my room
 
-RUN git clone --depth=1 --recurse-submodules https://github.com/cimgui/cimgui.git /cimgui
-
 SHELL ["/bin/bash", "-c"]
-ARG FPC_VERSION=2.6.4
+ARG FPC_VERSION=3.2.2
 RUN curl -sL https://sourceforge.net/projects/freepascal/files/Linux/$FPC_VERSION/fpc-$FPC_VERSION.i386-linux.tar/download | tar -xf - && \
 	pushd fpc-$FPC_VERSION.i386-linux && ./install.sh && popd && \
 	rm -rf fpc-$FPC_VERSION.i386-linux

compile.sh

@@ -7,7 +7,7 @@ echo "Asuro Compilation"
 echo " "
 
 #Compile Stub.asm
-rm lib/*
+rm -f lib/*
 
 runOrFail() {
 	local binary=$1
@@ -23,7 +23,7 @@ runOrFail() {
 declare -a run_steps=(
 	"compile_stub.sh" "Failed to compile stub!"
 	"compile_vergen.sh" "Versions failed to compile"
-	"compile_imgui.sh" "Failed to compile ImGui!"
+	"compile_lvgl.sh" "Failed to compile LVGL!"
 	"compile_sources.sh" "Failed to compile FPC Sources!"
 	"compile_link.sh" "Failed linking!"
 	"compile_isogen.sh" "Failed to create ISO!"

compile_imgui.sh

@@ -1,90 +0,0 @@
-#!/usr/bin/env bash
-echo " "
-echo "======================="
-echo " "
-echo "Compiling ImGui (cimgui)..."
-echo " "
-
-IMGUI_DIR=/cimgui
-IMGUI_SRC=$IMGUI_DIR/imgui
-BRIDGE_SRC=src/driver/video/imgui
-
-# Flags shared by all C/C++ compilation units:
-#   -m32              -> i386 target
-#   -ffreestanding    -> no implicit stdlib inclusion
-#   -fno-builtin      -> don't inline memcpy/memset/etc. so our stubs are used
-#   -O2               -> optimise for speed
-#   -ffunction-sections -fdata-sections -> allow --gc-sections in linker
-C_FLAGS="-m32 -ffreestanding -fno-builtin -O2 -ffunction-sections -fdata-sections"
-
-# Extra flags for C++ translation units (cimgui/imgui sources):
-#   -fno-exceptions         -> no stack-unwinding machinery
-#   -fno-rtti               -> no typeinfo / dynamic_cast
-#   -fno-use-cxa-atexit     -> don't emit __cxa_atexit calls for static dtors
-#   -fno-threadsafe-statics -> no guard-variable emission for local statics
-# NOTE: *not* -ffreestanding / -fno-builtin here — imgui includes <cmath> and
-#       other hosted headers that refuse to compile in freestanding mode.
-#       The object files are archived into a static lib and linked freestanding;
-#       any hosted-stdlib calls (malloc/free/sin/cos/…) resolve to crtshim.c.
-CPP_FLAGS="-m32 -O2 -ffunction-sections -fdata-sections -fno-exceptions -fno-rtti -fno-use-cxa-atexit -fno-threadsafe-statics -fno-stack-protector -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0 -DNDEBUG -DIMGUI_ENABLE_STB_TRUETYPE"
-
-INCLUDE="-I$IMGUI_DIR -I$IMGUI_SRC"
-
-echo "Compiling C runtime shim..."
-gcc $C_FLAGS $INCLUDE \
-    -c $BRIDGE_SRC/crtshim.c \
-    -o lib/imgui_crtshim.o || { echo "Failed: crtshim.c"; exit 1; }
-
-echo "Compiling render bridge..."
-# imgbridge is compiled as C++ so it sees cimgui.h function declarations
-# (C++ mode is required; the .c extension is overridden with -x c++)
-g++ $CPP_FLAGS $INCLUDE \
-    -x c++ \
-    -DCIMGUI_DEFINE_ENUMS_AND_STRUCTS \
-    -c $BRIDGE_SRC/imgbridge.c \
-    -o lib/imgui_bridge.o || { echo "Failed: imgbridge.c"; exit 1; }
-
-echo "Compiling cimgui wrapper..."
-g++ $CPP_FLAGS $INCLUDE \
-    -c $IMGUI_DIR/cimgui.cpp \
-    -o lib/imgui_cimgui.o || { echo "Failed: cimgui.cpp"; exit 1; }
-
-echo "Compiling imgui core..."
-g++ $CPP_FLAGS $INCLUDE \
-    -c $IMGUI_SRC/imgui.cpp \
-    -o lib/imgui_core.o || { echo "Failed: imgui.cpp"; exit 1; }
-
-echo "Compiling imgui draw..."
-g++ $CPP_FLAGS $INCLUDE \
-    -c $IMGUI_SRC/imgui_draw.cpp \
-    -o lib/imgui_draw.o || { echo "Failed: imgui_draw.cpp"; exit 1; }
-
-echo "Compiling imgui tables..."
-g++ $CPP_FLAGS $INCLUDE \
-    -c $IMGUI_SRC/imgui_tables.cpp \
-    -o lib/imgui_tables.o || { echo "Failed: imgui_tables.cpp"; exit 1; }
-
-echo "Compiling imgui widgets..."
-g++ $CPP_FLAGS $INCLUDE \
-    -c $IMGUI_SRC/imgui_widgets.cpp \
-    -o lib/imgui_widgets.o || { echo "Failed: imgui_widgets.cpp"; exit 1; }
-
-echo "Compiling imgui demo..."
-g++ $CPP_FLAGS $INCLUDE \
-    -c $IMGUI_SRC/imgui_demo.cpp \
-    -o lib/imgui_demo.o || { echo "Failed: imgui_demo.cpp"; exit 1; }
-
-echo "Archiving cimgui.a..."
-# NOTE: imgui_bridge.o and imgui_crtshim.o are NOT in the archive because
-# compile_link.sh already picks them up individually via find lib/ -name "*.o".
-# Including them here would cause duplicate symbol errors.
-ar rcs lib/cimgui.a \
-    lib/imgui_cimgui.o \
-    lib/imgui_core.o \
-    lib/imgui_draw.o \
-    lib/imgui_tables.o \
-    lib/imgui_widgets.o \
-    lib/imgui_demo.o || { echo "Failed: ar"; exit 1; }
-
-echo "ImGui compiled successfully."
-exit 0

compile_link.sh

@@ -14,6 +14,9 @@ done;
 objstring=lib/stub.o" "$objstring 
 echo "Object Files: "$objstring
 echo " "
+
+# Find libgcc for i386 (needed by LVGL compiled with gcc)
 LIBGCC=$(gcc -m32 -print-libgcc-file-name)
-ld -m elf_i386 -s --gc-sections -Tlinker.script -o bin/kernel.bin $objstring \
-    --start-group lib/cimgui.a $LIBGCC --end-group
+echo "libgcc: ${LIBGCC}"
+
+ld -m elf_i386 -s --gc-sections -Tlinker.script -o bin/kernel.bin $objstring --start-group lib/liblvgl.a ${LIBGCC} --end-group

compile_lvgl.sh

@@ -0,0 +1,132 @@
+#!/usr/bin/env bash
+# compile_lvgl.sh — Download LVGL v9.2 source and compile into lib/liblvgl.a
+# Clone & compile in /tmp (fast container-local fs).
+# Cache liblvgl.a on host mount (/code/lvgl/) to skip rebuild.
+set -e
+
+LVGL_VERSION="v9.2.2"
+LVGL_REPO="https://github.com/lvgl/lvgl.git"
+LVGL_DIR="/tmp/lvgl"
+OBJ_DIR="/tmp/lvgl_obj"
+CONF_DIR="$(pwd)/lvglh"
+OUT_DIR="$(pwd)/lib"
+CACHE_DIR="/code/lvgl"
+
+CC="gcc"
+CFLAGS="-m32 -march=i686 -ffreestanding \
+    -fno-builtin -fno-stack-protector -fno-pic -fno-pie \
+    -O2 -Wall -Wno-unused-function -Wno-unused-variable \
+    -I${CONF_DIR} \
+    -I${LVGL_DIR} \
+    -I${LVGL_DIR}/.. \
+    -DLV_CONF_INCLUDE_SIMPLE"
+
+echo " "
+echo "======================="
+echo " "
+echo "Compiling LVGL..."
+echo " "
+
+# If cached liblvgl.a exists on host mount, just copy it and skip everything
+if [ -f "${CACHE_DIR}/liblvgl.a" ]; then
+    echo "Found cached liblvgl.a in ${CACHE_DIR}, copying to ${OUT_DIR}..."
+    cp "${CACHE_DIR}/liblvgl.a" "${OUT_DIR}/liblvgl.a"
+    echo "(Delete lvgl/liblvgl.a to force a full rebuild.)"
+    echo " "
+    echo "LVGL compilation complete (cached)."
+    echo " "
+    exit 0
+fi
+
+# Clone LVGL into /tmp (container-local)
+rm -rf "$LVGL_DIR"
+echo "Downloading LVGL ${LVGL_VERSION}..."
+git clone --depth 1 --branch "${LVGL_VERSION}" "${LVGL_REPO}" "${LVGL_DIR}" 2>&1
+echo "Download complete."
+
+# Gather all LVGL .c source files (core library only, no demos/examples)
+SOURCES=$(find "${LVGL_DIR}/src" -name '*.c' -not -path '*/test/*')
+TOTAL=$(echo "$SOURCES" | wc -l)
+echo "Found ${TOTAL} LVGL source files."
+
+# Compile each .c file to .o (container-local)
+rm -rf "$OBJ_DIR"
+mkdir -p "$OBJ_DIR"
+
+COUNT=0
+ERRORS=0
+for src in $SOURCES; do
+    COUNT=$((COUNT + 1))
+    rel="${src#${LVGL_DIR}/src/}"
+    obj_path="${OBJ_DIR}/${rel%.c}.o"
+    mkdir -p "$(dirname "$obj_path")"
+
+    if ! $CC $CFLAGS -c "$src" -o "$obj_path" 2>&1; then
+        echo "FAILED: $rel"
+        ERRORS=$((ERRORS + 1))
+    fi
+
+    if [ $((COUNT % 50)) -eq 0 ]; then
+        echo "  Compiled ${COUNT}/${TOTAL}..."
+    fi
+done
+
+echo "Compiled ${COUNT} files (${ERRORS} errors)."
+
+if [ "$ERRORS" -ne 0 ]; then
+    echo "LVGL compilation FAILED with ${ERRORS} errors."
+    exit 1
+fi
+
+# Archive into static library
+OBJECTS=$(find "$OBJ_DIR" -name '*.o')
+ar rcs "${OUT_DIR}/liblvgl.a" $OBJECTS
+echo "Created ${OUT_DIR}/liblvgl.a"
+
+# Compile custom LVGL extension files from lvglh/
+LVGLH_SOURCES=$(find "${CONF_DIR}" -name '*.c' 2>/dev/null || true)
+if [ -n "$LVGLH_SOURCES" ]; then
+    echo " "
+    echo "Compiling custom LVGL files from lvglh/..."
+    LVGLH_OBJ_DIR="/tmp/lvglh_obj"
+    rm -rf "$LVGLH_OBJ_DIR"
+    mkdir -p "$LVGLH_OBJ_DIR"
+    HCOUNT=0
+    HERRORS=0
+    for src in $LVGLH_SOURCES; do
+        HCOUNT=$((HCOUNT + 1))
+        rel="${src#${CONF_DIR}/}"
+        obj_path="${LVGLH_OBJ_DIR}/${rel%.c}.o"
+        mkdir -p "$(dirname "$obj_path")"
+        echo "  [lvglh] $rel"
+        if ! $CC $CFLAGS -c "$src" -o "$obj_path" 2>&1; then
+            echo "  FAILED: $rel"
+            HERRORS=$((HERRORS + 1))
+        fi
+    done
+    echo "Compiled ${HCOUNT} custom files (${HERRORS} errors)."
+    if [ "$HERRORS" -ne 0 ]; then
+        echo "Custom LVGL compilation FAILED."
+        exit 1
+    fi
+    # Append custom objects into the existing archive
+    HOBJECTS=$(find "$LVGLH_OBJ_DIR" -name '*.o')
+    ar rcs "${OUT_DIR}/liblvgl.a" $HOBJECTS
+    echo "Updated ${OUT_DIR}/liblvgl.a with custom objects."
+else
+    echo "No custom LVGL files in lvglh/."
+fi
+
+# Cache liblvgl.a and source to host mount for next build
+echo "Caching LVGL to host mount..."
+mkdir -p "$CACHE_DIR"
+rm -rf ${CACHE_DIR}/* ${CACHE_DIR}/.[!.]* ${CACHE_DIR}/..?* 2>/dev/null || true
+cp "${OUT_DIR}/liblvgl.a" "${CACHE_DIR}/liblvgl.a"
+cp -a "$LVGL_DIR/src" "${CACHE_DIR}/src"
+cp -a "$LVGL_DIR"/*.h "${CACHE_DIR}/" 2>/dev/null || true
+cp -a "$OBJ_DIR" "${CACHE_DIR}/obj"
+echo "Done."
+
+echo " "
+echo "LVGL compilation complete."
+echo " "

compile_sources.sh

@@ -4,4 +4,4 @@ echo "======================="
 echo " "
 echo "Compiling FPC Sources..."
 echo " "
-fpc -Aelf -gw -g -gl -n -vlewn -O3 -Op3 -Si -Sc -Sg -Xd -CX -XXs -CfSSE -CfSSE2 -Rintel -Pi386 -Tlinux -FElib/ -Fusrc/* -Fusrc/driver/* -Fusrc/driver/net/* -Fusrc/driver/video/* -Fusrc/driver/video/imgui/* src/kernel.pas
+fpc -Aelf -gw -g -gl -n -v0ew -O3 -OpPENTIUM3 -Si -Sc -Sg -Xd -CX -XXs -CfSSE -CfSSE2 -Rintel -Pi386 -Tlinux -FElib/ -Fusrc/* -Fusrc/include/* -Fusrc/driver/* -Fusrc/driver/net/* -Fusrc/driver/bus/* -Fusrc/driver/bus/usb/* -Fusrc/driver/hid/* src/kernel.pas

dockerout.txt

@@ -1,20 +0,0 @@
-4023:CIMGUI_API float igGetWindowDpiScale(void);
-4081:CIMGUI_API const ImVec4_c* igGetStyleColorVec4(ImGuiCol idx);
-4082:CIMGUI_API ImVec2_c igGetCursorScreenPos(void);
-4084:CIMGUI_API ImVec2_c igGetContentRegionAvail(void);
-4085:CIMGUI_API ImVec2_c igGetCursorPos(void);
-4086:CIMGUI_API float igGetCursorPosX(void);
-4087:CIMGUI_API float igGetCursorPosY(void);
-4091:CIMGUI_API ImVec2_c igGetCursorStartPos(void);
-4350:CIMGUI_API void igBeginDisabled(bool disabled);
-4372:CIMGUI_API ImVec2_c igGetItemRectMin(void);
-4373:CIMGUI_API ImVec2_c igGetItemRectMax(void);
-4374:CIMGUI_API ImVec2_c igGetItemRectSize(void);
-4377:CIMGUI_API ImDrawList* igGetBackgroundDrawList(ImGuiViewport* viewport);
-4378:CIMGUI_API ImDrawList* igGetForegroundDrawList_ViewportPtr(ImGuiViewport* viewport);
-4387:CIMGUI_API ImVec2_c igCalcTextSize(const char* text,const char* text_end,bool hide_text_after_double_hash,float wrap_width);
-4388:CIMGUI_API ImVec4_c igColorConvertU32ToFloat4(ImU32 in);
-4405:CIMGUI_API bool igIsMouseDoubleClicked_Nil(ImGuiMouseButton button);
-5092:CIMGUI_API ImDrawList* igGetForegroundDrawList_WindowPtr(ImGuiWindow* window);
-5161:CIMGUI_API void igBeginDisabledOverrideReenable(void);
-5244:CIMGUI_API bool igIsMouseDoubleClicked_ID(ImGuiMouseButton button,ImGuiID owner_id);

src/contextswitcher.pas

@@ -12,15 +12,118 @@
 //  See the License for the specific language governing permissions and
 //  limitations under the License.
 
-{ 
-	ContextSwitcher - Switch Process Contexts when preempted.
-	
-	@author(Kieron Morris <[email protected]>)
+{
+    ContextSwitcher - Custom IRQ0 handler for preemptive context switching.
+
+    Replaces the default ISR_32 with a naked assembly stub that saves the
+    interrupted context (PUSHAD + segment regs), calls a Pascal helper to
+    dispatch timer hooks, send EOI, and run the scheduler, then restores
+    the next process context (or idles) via the returned ESP.
+
+    @author(Kieron Morris <[email protected]>)
 }
 unit contextswitcher;
 
+{$ASMMODE intel}
+
 interface
 
-implementation;
+uses
+    idt, isrmanager, processmanager, proctypes, util, tracer;
+
+{ Initialise: overwrite IDT gate 32 with our custom ISR. }
+procedure init;
+
+implementation
+
+{ -----------------------------------------------------------------------
+  do_context_switch_work
+  Pascal helper called from the assembly ISR.  Receives the current ESP
+  (pointing to the GS..EFLAGS save area), dispatches timer hooks, sends
+  EOI, runs the scheduler and returns the ESP for the next context.
+  Uses register calling convention: saved_esp in EAX, result in EAX.
+  ----------------------------------------------------------------------- }
+function do_context_switch_work(saved_esp : uint32) : uint32;
+var
+    next : PProcessContext;
+begin
+    { 1. Save ESP into the current process }
+    processmanager.CurrentProcess^.SavedESP := saved_esp;
+
+    { 2. Dispatch all hooks registered on interrupt 32 (timer hooks).
+         This fires TMR_0_ISR.Main which in turn fires BDA tick,
+         graphics refresh, USB hotplug, etc. }
+    isrmanager.dispatchHooks(32);
+
+    { 3. Send End-Of-Interrupt to the master PIC }
+    outb($20, $20);
+
+    { 4. Pick the next process to run (always returns non-nil; idle as fallback) }
+    next := processmanager.scheduler_pick_next;
+    processmanager.CurrentProcess := next;
+
+    { 5. Return the selected process ESP }
+    do_context_switch_work := next^.SavedESP;
+end;
+
+{ -----------------------------------------------------------------------
+  context_switch_isr
+  Naked assembly ISR that replaces ISR_32 (IRQ0 / PIT timer).
+
+  Stack on entry (pushed by CPU):
+      [ESP+8] EFLAGS
+      [ESP+4] CS
+      [ESP+0] EIP
+
+  We push general-purpose and segment registers, call the Pascal helper,
+  switch ESP to the returned value, pop registers and IRETD.
+  ----------------------------------------------------------------------- }
+procedure context_switch_isr; assembler; nostackframe;
+asm
+    { Save all general-purpose registers (EAX,ECX,EDX,EBX,ESP,EBP,ESI,EDI) }
+    pushad
+
+    { Save segment registers }
+    push ds
+    push es
+    push fs
+    push gs
+
+    { Load kernel data segments }
+    mov ax, $10
+    mov ds, ax
+    mov es, ax
+    mov fs, ax
+    mov gs, ax
+
+    { Call Pascal helper: EAX = current ESP (register calling convention).
+      Returns new ESP in EAX. }
+    mov eax, esp
+    call do_context_switch_work
+    mov esp, eax
+
+    { Restore segment registers }
+    pop gs
+    pop fs
+    pop es
+    pop ds
+
+    { Restore general-purpose registers }
+    popad
+
+    { Return from interrupt }
+    iretd
+end;
+
+{ -----------------------------------------------------------------------
+  init
+  Override IDT gate 32 with our custom ISR.  Must be called AFTER
+  isrmanager.init so that the default gate has been set up first.
+  ----------------------------------------------------------------------- }
+procedure init;
+begin
+    idt.set_gate(32, uint32(@context_switch_isr), $08, ISR_RING_0);
+    tracer.push_trace('contextswitcher.init');
+end;
 
 end.

src/driver/bus/EHCI.pas

@@ -1,65 +0,0 @@
-//  Copyright 2021 Kieron Morris
-//
-//  Licensed under the Apache License, Version 2.0 (the "License");
-//  you may not use this file except in compliance with the License.
-//  You may obtain a copy of the License at
-//
-//  http://www.apache.org/licenses/LICENSE-2.0
-//
-//  Unless required by applicable law or agreed to in writing, software
-//  distributed under the License is distributed on an "AS IS" BASIS,
-//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-//  See the License for the specific language governing permissions and
-//  limitations under the License.
-
-{ 
-	Driver->Bus->EHCI - Enhanced Host Controller Interface Driver.
-	
-	@author(Kieron Morris <[email protected]>)
-}
-unit EHCI;
-
-interface
-
-uses
-    tracer,
-    Console,
-    PCI,
-    drivertypes,
-    pmemorymanager,
-    vmemorymanager,
-    util,
-    drivermanagement;
-
-function load : boolean;
-
-implementation
-
-function load : boolean;
-var
-    devices : TDeviceArray;
-    count   : uint32;
-    i       : uint32;
-
-begin
-    tracer.push_trace('EHCI.load');
-    devices:= PCI.getDeviceInfo($0C, $03, $20, count);
-    console.output('USB-EHCI Driver', 'Found ');
-    console.writeint(count);
-    console.writestringln(' USB Controller(s).');
-    if count > 0 then begin
-        for i:=0 to count-1 do begin
-            console.output('USB-EHCI Driver', 'Controller[');
-            console.writeint(i);
-            console.writestring(']: ');
-            console.writehex(devices[i].device_id);
-            console.writestring(' ');
-            console.writehex(devices[i].vendor_id);
-            console.writestring(' ');
-            console.writehexln(devices[i].prog_if);
-        end;
-    end;
-    load:= true;
-end;
-
-end.

src/driver/bus/OHCI.pas

@@ -1,96 +0,0 @@
-//  Copyright 2021 Kieron Morris
-//
-//  Licensed under the Apache License, Version 2.0 (the "License");
-//  you may not use this file except in compliance with the License.
-//  You may obtain a copy of the License at
-//
-//  http://www.apache.org/licenses/LICENSE-2.0
-//
-//  Unless required by applicable law or agreed to in writing, software
-//  distributed under the License is distributed on an "AS IS" BASIS,
-//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-//  See the License for the specific language governing permissions and
-//  limitations under the License.
-
-{ 
-	Driver->Bus->OHCI - Open Host Controller Interface Driver.
-	
-	@author(Kieron Morris <[email protected]>)
-}
-unit OHCI;
-
-interface
-
-uses
-    tracer,
-    Console,
-    PCI,
-    drivertypes,
-    pmemorymanager,
-    vmemorymanager,
-    util,
-    drivermanagement;
-
-type
-    POHCI_MMR = ^TOHCI_MMR;
-    TOHCI_MMR = packed record
-        HcRevision : uint32;
-        HcControl  : uint32;
-        HcCommandStatus : uint32;
-        HcIntStatus  : uint32;
-        HcIntEnable  : uint32;
-        HcIntDisable : uint32;
-        HcHCCA : uint32;
-        HcPeriodCurrentED : uint32;
-        HcControlHeadED : uint32;
-        HcControlCurrentED : uint32;
-        HcBulkHeadED : uint32;
-        HcBulkCurrentED : uint32;
-        HcDoneHead : uint32;
-        HcFmRemaining : uint32;
-        HcFmNumber : uint32;
-        HcPeriodicStart : uint32;
-        HcLSThreshold : uint32;
-        HcRhDescriptorA : uint32;
-        HcRhDescriptorB : uint32;
-        HcRhStatus : uint32;
-    end;
-
-function load : boolean;
-
-implementation
-
-function load : boolean;
-var
-    devices : TDeviceArray;
-    count   : uint32;
-    i       : uint32;
-    block   : uint32;
-    MMR     : POHCI_MMR;
-
-begin
-    tracer.push_trace('OHCI.load');
-    devices:= PCI.getDeviceInfo($0C, $03, $10, count);
-    console.output('USB-OHCI Driver', 'Found ');
-    console.writeint(count);
-    console.writestringln(' USB Controller(s).');
-    if count > 0 then begin
-        for i:=0 to count-1 do begin
-            console.output('USB-OHCI Driver', 'Controller[');
-            console.writeint(i);
-            console.writestring(']: ');
-            console.writehex(devices[i].device_id);
-            console.writestring(' ');
-            console.writehex(devices[i].vendor_id);
-            console.writestring(' ');
-            console.writehexln(devices[i].prog_if);
-            block:= devices[i].address0 SHR 22;
-            force_alloc_block(block, 0);
-            map_page(block, block);
-            MMR:= POHCI_MMR(devices[i].address0);
-        end;
-    end;
-    load:= true;
-end;
-
-end.