Added VMware mouse driver

.gitignore

@@ -1,3 +1,4 @@
 out
 *.map
 *.o
+.dccache

Input/Makefile

@@ -0,0 +1,5 @@
+build:
+	make --quiet -C VMwareMouse build
+
+clean:
+	make -C VMwareMouse clean

Input/VMwareMouse/Makefile

@@ -0,0 +1,100 @@
+# Config file
+include ../../../Makefile.conf
+
+FILENAME = VMwareGuestDriver.fex
+
+CC = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)gcc
+CPP = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)g++
+LD = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)ld
+AS = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)as
+OBJDUMP = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)objdump
+
+GIT_COMMIT = $(shell git rev-parse HEAD)
+GIT_COMMIT_SHORT = $(shell git rev-parse --short HEAD)
+
+ifeq ($(OSARCH), amd64)
+S_SOURCES = $(shell find ./ -type f -name '*.S' -not -path "./arch/i686/*" -not -path "./arch/aarch64/*")
+C_SOURCES = $(shell find ./ -type f -name '*.c' -not -path "./arch/i686/*" -not -path "./arch/aarch64/*")
+CPP_SOURCES = $(shell find ./ -type f -name '*.cpp' -not -path "./arch/i686/*" -not -path "./arch/aarch64/*")
+else ifeq ($(OSARCH), i686)
+S_SOURCES = $(shell find ./ -type f -name '*.S' -not -path "./arch/amd64/*" -not -path "./arch/aarch64/*")
+C_SOURCES = $(shell find ./ -type f -name '*.c' -not -path "./arch/amd64/*" -not -path "./arch/aarch64/*")
+CPP_SOURCES = $(shell find ./ -type f -name '*.cpp' -not -path "./arch/amd64/*" -not -path "./arch/aarch64/*")
+else ifeq ($(OSARCH), aarch64)
+S_SOURCES = $(shell find ./ -type f -name '*.S' -not -path "./arch/amd64/*" -not -path "./arch/i686/*")
+C_SOURCES = $(shell find ./ -type f -name '*.c' -not -path "./arch/amd64/*" -not -path "./arch/i686/*")
+CPP_SOURCES = $(shell find ./ -type f -name '*.cpp' -not -path "./arch/amd64/*" -not -path "./arch/i686/*")
+endif
+HEADERS = $(sort $(dir $(wildcard ../../include/*)))
+OBJ = $(C_SOURCES:.c=.o) $(CPP_SOURCES:.cpp=.o) $(ASM_SOURCES:.asm=.o) $(S_SOURCES:.S=.o) $(PSF_SOURCES:.psf=.o) $(BMP_SOURCES:.bmp=.o)
+INCLUDE_DIR = ../../include
+
+LDFLAGS := 									\
+	-fPIC -fno-pie 							\
+	-Wl,-static,--no-dynamic-linker,-ztext 	\
+	-nostdlib -nodefaultlibs -nolibc  		\
+	-zmax-page-size=0x1000					\
+	-Wl,-Map file.map -shared
+
+WARNCFLAG = -Wall -Wextra
+
+CFLAGS :=										\
+	-I$(INCLUDE_DIR)							\
+	-DGIT_COMMIT='"$(GIT_COMMIT)"'				\
+	-DGIT_COMMIT_SHORT='"$(GIT_COMMIT_SHORT)"'
+
+ifeq ($(OSARCH), amd64)
+
+CFLAGS += -fPIC -fno-pie -mno-80387 -mno-mmx -mno-3dnow	\
+		  -mno-red-zone -mno-sse -mno-sse2				\
+		  -march=x86-64 -pipe -ffunction-sections		\
+		  -mcmodel=kernel -msoft-float -fno-builtin
+LDFLAGS += -Tarch/amd64/linker.ld
+
+else ifeq ($(OSARCH), i686)
+
+CFLAGS += -fPIC -fno-pie -mno-80387 -mno-mmx -mno-3dnow			\
+		  -mno-red-zone -mno-sse -mno-sse2 -ffunction-sections	\
+		  -march=i686 -pipe -msoft-float -fno-builtin
+LDFLAGS += -Tarch/i686/linker.ld
+
+else ifeq ($(OSARCH), aarch64)
+
+CFLAGS += -pipe -fno-builtin -fPIC
+LDFLAGS += -Tarch/aarch64/linker.ld
+
+endif
+
+build: $(FILENAME)
+ifeq ($(OSARCH), amd64)
+	$(OBJDUMP) -b binary -D -m i386:x86-64 -d $(FILENAME) > file_dump.map
+else ifeq ($(OSARCH), i686)
+
+else ifeq ($(OSARCH), aarch64)
+
+endif
+	mv $(FILENAME) ../../out/$(FILENAME)
+
+$(FILENAME): $(OBJ)
+	$(CC) $(LDFLAGS) $(OBJ) -o $@
+
+%.o: %.c $(HEADERS)
+	$(info Compiling $<)
+	$(CC) $(CFLAGS) $(WARNCFLAG) -std=c17 -c $< -o $@
+
+%.o: %.cpp $(HEADERS)
+	$(info Compiling $<)
+	$(CPP) $(CFLAGS) $(WARNCFLAG) -std=c++20 -fexceptions -c $< -o $@ -fno-rtti
+
+%.o: %.S
+	$(info Compiling $<)
+ifeq ($(OSARCH), amd64)
+	$(AS) -o $@ $<
+else ifeq ($(OSARCH), i686)
+	$(AS) -o $@ $<
+else ifeq ($(OSARCH), aarch64)
+	$(AS) -o $@ $<
+endif
+
+clean:
+	rm -f *.o file.map file_dump.map $(OBJ)

Input/VMwareMouse/arch/amd64/linker.ld

@@ -0,0 +1,42 @@
+/* EXPERIMENTAL */
+
+OUTPUT_FORMAT(binary)
+OUTPUT_ARCH(i386:x86-64)
+
+ENTRY(DriverEntry)
+
+SECTIONS
+{
+    .header :
+    {
+        *(.header .header.*)
+        *(.extended .extended.*)
+    }
+
+    .text :
+    {
+        *(.text .text.*)
+    }
+
+    .data :
+    {
+        *(.data .data.*)
+    }
+
+    .rodata :
+    {
+        *(.rodata .rodata.*)
+    }
+
+    .bss :
+    {
+        *(COMMON)
+        *(.bss .bss.*)
+    }
+
+    /DISCARD/ :
+    {
+        *(.eh_frame)
+        *(.note .note.*)
+    }
+}

Input/VMwareMouse/vmware_mouse.cpp

@@ -0,0 +1,261 @@
+#include <pci.h>
+#include <io.h>
+
+#include "../../../Kernel/DAPI.hpp"
+#include "../../../Kernel/Fex.hpp"
+
+extern "C" int DriverEntry(void *Data);
+int CallbackHandler(KernelCallback *Data);
+
+HEAD(FexFormatType_Driver, FexOSType_Fennix, DriverEntry);
+
+#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
+
+__attribute__((section(".extended"))) FexExtended ExtendedHeader = {
+    .Driver = {
+        .Name = "VMware Virtual Mouse Driver",
+        .Type = FexDriverType_Input,
+        .Callback = CallbackHandler,
+        .Bind = {
+            .Type = BIND_INTERRUPT,
+            .Interrupt = {
+                .Vector = {0xC}, // IRQ12
+            }}}};
+
+KernelAPI *KAPI;
+
+/* --------------------------------------------------------------------------------------------------------- */
+
+/* https://wiki.osdev.org/VMware_tools */
+
+typedef struct
+{
+    union
+    {
+        uint32_t ax;
+        uint32_t magic;
+    };
+    union
+    {
+        uint32_t bx;
+        size_t size;
+    };
+    union
+    {
+        uint32_t cx;
+        uint16_t command;
+    };
+    union
+    {
+        uint32_t dx;
+        uint16_t port;
+    };
+    uint32_t si;
+    uint32_t di;
+} VMwareCommand;
+
+#define VMWARE_MAGIC 0x564D5868 /* hXMV */
+#define VMWARE_PORT 0x5658
+
+#define CMD_GETVERSION 0xA
+#define CMD_ABSPOINTER_DATA 0x27
+#define CMD_ABSPOINTER_STATUS 0x28
+#define CMD_ABSPOINTER_COMMAND 0x29
+
+#define ABSPOINTER_ENABLE 0x45414552 /* Q E A E */
+#define ABSPOINTER_RELATIVE 0xF5
+#define ABSPOINTER_ABSOLUTE 0x53424152 /* R A B S */
+
+void CommandSend(VMwareCommand *cmd)
+{
+    cmd->magic = VMWARE_MAGIC;
+    cmd->port = VMWARE_PORT;
+    asm volatile("in %%dx, %0"
+                 : "+a"(cmd->ax), "+b"(cmd->bx), "+c"(cmd->cx), "+d"(cmd->dx), "+S"(cmd->si), "+D"(cmd->di));
+}
+
+bool IsVMwareBackdoorAvailable(void)
+{
+    VMwareCommand cmd;
+    cmd.bx = ~VMWARE_MAGIC;
+    cmd.command = CMD_GETVERSION;
+    CommandSend(&cmd);
+    if (cmd.bx != VMWARE_MAGIC || cmd.ax == 0xFFFFFFFF)
+        return false;
+    return true;
+}
+
+int DriverEntry(void *Data)
+{
+    if (!Data)
+        return INVALID_KERNEL_API;
+    KAPI = (KernelAPI *)Data;
+    if (KAPI->Version.Major < 0 || KAPI->Version.Minor < 0 || KAPI->Version.Patch < 0)
+        return KERNEL_API_VERSION_NOT_SUPPORTED;
+
+    if (!IsVMwareBackdoorAvailable())
+        return SYSTEM_NOT_SUPPORTED;
+
+    return OK;
+}
+
+void Absolute(void)
+{
+    VMwareCommand cmd;
+
+    /* Enable */
+    cmd.bx = ABSPOINTER_ENABLE;
+    cmd.command = CMD_ABSPOINTER_COMMAND;
+    CommandSend(&cmd);
+
+    /* Status */
+    cmd.bx = 0;
+    cmd.command = CMD_ABSPOINTER_STATUS;
+    CommandSend(&cmd);
+
+    /* Read data (1) */
+    cmd.bx = 1;
+    cmd.command = CMD_ABSPOINTER_DATA;
+    CommandSend(&cmd);
+
+    /* Enable absolute */
+    cmd.bx = ABSPOINTER_ABSOLUTE;
+    cmd.command = CMD_ABSPOINTER_COMMAND;
+    CommandSend(&cmd);
+}
+
+void Relative(void)
+{
+    VMwareCommand cmd;
+    cmd.bx = ABSPOINTER_RELATIVE;
+    cmd.command = CMD_ABSPOINTER_COMMAND;
+    CommandSend(&cmd);
+}
+
+enum Config
+{
+    READ_CONFIG = 0x20,
+    WRITE_CONFIG = 0x60
+};
+
+enum Ports
+{
+    DATA = 0x60,
+    STATUS = 0x64,
+    COMMAND = 0x64,
+};
+
+enum State
+{
+    OUTPUT_FULL = (1 << 0),
+    INPUT_FULL = (1 << 1),
+    MOUSE_BYTE = (1 << 5)
+};
+
+void WaitRead()
+{
+    uint64_t Timeout = 100000;
+    while (Timeout--)
+        if (inb(Ports::STATUS) & State::OUTPUT_FULL)
+            return;
+}
+
+void WaitWrite()
+{
+    uint64_t Timeout = 100000;
+    while (Timeout--)
+        if ((inb(Ports::STATUS) & State::INPUT_FULL) == 0)
+            return;
+}
+
+void Write(uint16_t Port, uint8_t Value)
+{
+    WaitWrite();
+    outb(Port, Value);
+}
+
+uint8_t Read()
+{
+    WaitRead();
+    return inb(Ports::DATA);
+}
+
+int MouseX = 0, MouseY = 0, MouseZ = 0;
+int MouseButton = 0;
+
+int CallbackHandler(KernelCallback *Data)
+{
+    switch (Data->Reason)
+    {
+    case AcknowledgeReason:
+    {
+        KAPI->Util.DebugPrint(((char *)"Kernel acknowledged the driver." + KAPI->Info.Offset), KAPI->Info.DriverUID);
+        break;
+    }
+    case ConfigurationReason:
+    {
+        outb(COMMAND, 0xA8);
+        Write(COMMAND, READ_CONFIG);
+        uint8_t Status = Read();
+        Status |= 0b10;
+        Write(COMMAND, WRITE_CONFIG);
+        Write(DATA, Status);
+        Write(COMMAND, 0xD4);
+        Write(DATA, 0xF6);
+        Read();
+        Write(COMMAND, 0xD4);
+        Write(DATA, 0xF4);
+        Read();
+        Absolute();
+        KAPI->Util.DebugPrint(((char *)"VMware mouse configured." + KAPI->Info.Offset), KAPI->Info.DriverUID);
+        break;
+    }
+    case InterruptReason:
+    {
+        uint8_t Data = inb(0x60);
+        (void)Data;
+        VMwareCommand cmd;
+        cmd.bx = 0;
+        cmd.command = CMD_ABSPOINTER_STATUS;
+        CommandSend(&cmd);
+
+        if (cmd.ax == 0xFFFF0000)
+        {
+            KAPI->Util.DebugPrint(((char *)"VMware mouse is not connected?" + KAPI->Info.Offset), KAPI->Info.DriverUID);
+            Relative();
+            Absolute();
+            return ERROR;
+        }
+        if ((cmd.ax & 0xFFFF) < 4)
+            return ERROR;
+
+        cmd.bx = 4;
+        cmd.command = CMD_ABSPOINTER_DATA;
+        CommandSend(&cmd);
+
+        int flags = (cmd.ax & 0xFFFF0000) >> 16; /* Not important */
+        (void)flags;
+        MouseButton = (cmd.ax & 0xFFFF);         /* 0x10 = Right, 0x20 = Left, 0x08 = Middle */
+        MouseX = cmd.bx;                         /* Both X and Y are scaled from 0 to 0xFFFF */
+        MouseY = cmd.cx;                         /* You should map these somewhere to the actual resolution. */
+        MouseZ = (int8_t)cmd.dx;                 /* Z is a single signed byte indicating scroll direction. */
+        break;
+    }
+    case FetchReason:
+    {
+        Data->InputCallback.Mouse.X = MouseX;
+        Data->InputCallback.Mouse.Y = MouseY;
+        Data->InputCallback.Mouse.Z = MouseZ;
+        Data->InputCallback.Mouse.Buttons.Left = MouseButton & 0x20;
+        Data->InputCallback.Mouse.Buttons.Right = MouseButton & 0x10;
+        Data->InputCallback.Mouse.Buttons.Middle = MouseButton & 0x08;
+        break;
+    }
+    default:
+    {
+        KAPI->Util.DebugPrint(((char *)"Unknown reason." + KAPI->Info.Offset), KAPI->Info.DriverUID);
+        break;
+    }
+    }
+    return OK;
+}

Makefile

@@ -1,5 +1,6 @@
 build:
 	mkdir -p out
+	make --quiet -C Input build
 	make --quiet -C Disk build
 	make --quiet -C Audio build
 	make --quiet -C FileSystem build
@@ -12,6 +13,7 @@ prepare:
 
 clean:
 	rm -rf out
+	make -C Input clean
 	make -C Disk clean
 	make -C Audio clean
 	make -C FileSystem clean

Network/E1000/e1000.cpp

@@ -390,7 +390,7 @@ int CallbackHandler(KernelCallback *Data)
         {
             uint8_t *Data = (uint8_t *)RX[RXCurrent]->Address;
             uint16_t DataLength = RX[RXCurrent]->Length;
-            KAPI->Commmand.Network.ReceivePacket(KAPI->Info.DriverUID, Data, DataLength);
+            KAPI->Command.Network.ReceivePacket(KAPI->Info.DriverUID, Data, DataLength);
             RX[RXCurrent]->Status = 0;
             uint16_t OldRXCurrent = RXCurrent;
             RXCurrent = (RXCurrent + 1) % E1000_NUM_RX_DESC;

Network/RTL8139/rtl8139.cpp

@@ -173,7 +173,7 @@ int CallbackHandler(KernelCallback *Data)
         uint16_t *Data = (uint16_t *)(RXBuffer + CurrentPacket);
         uint16_t DataLength = *(Data + 1);
         Data = Data + 2;
-        KAPI->Commmand.Network.ReceivePacket(KAPI->Info.DriverUID, (uint8_t *)Data, DataLength);
+        KAPI->Command.Network.ReceivePacket(KAPI->Info.DriverUID, (uint8_t *)Data, DataLength);
         CurrentPacket = (CurrentPacket + DataLength + 4 + 3) & (~3);
         if (CurrentPacket > 8192)
             CurrentPacket -= 8192;