green.h

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#ifndef __GREEN_H__
#define __GREEN_H__

#include <ntddk.h>
#include <ntifs.h>
#include <ntndk.h>
#include <windef.h>
#define WINBASEAPI
typedef struct _SECURITY_ATTRIBUTES SECURITY_ATTRIBUTES, *PSECURITY_ATTRIBUTES;
#include <ntddser.h>
#include <kbdmou.h>
#include <wincon.h>
#include <drivers/blue/ntddblue.h>

#define RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE         1
#define RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING   2

#define INFINITE -1
#define KEYBOARD_BUFFER_SIZE 100

typedef enum
{
    GreenPDO,
    ScreenPDO,
    KeyboardPDO,
    GreenFDO,
    ScreenFDO,
    KeyboardFDO,
    PassThroughFDO,
} GREEN_DEVICE_TYPE;

typedef struct _COMMON_DEVICE_EXTENSION
{
    GREEN_DEVICE_TYPE Type;
} COMMON_DEVICE_EXTENSION, *PCOMMON_DEVICE_EXTENSION;

/* For PassThroughFDO devices */
typedef struct _COMMON_FDO_DEVICE_EXTENSION
{
    GREEN_DEVICE_TYPE Type;
    PDEVICE_OBJECT LowerDevice;
} COMMON_FDO_DEVICE_EXTENSION, *PCOMMON_FDO_DEVICE_EXTENSION;

/* For KeyboardFDO devices */
typedef struct _KEYBOARD_DEVICE_EXTENSION
{
    COMMON_FDO_DEVICE_EXTENSION Common;
    PDEVICE_OBJECT Green;

    CONNECT_DATA ClassInformation;
    HANDLE WorkerThreadHandle;
    KDPC KeyboardDpc;

    ULONG ActiveQueue;
    ULONG InputDataCount[2];
    KEYBOARD_INPUT_DATA KeyboardInputData[2][KEYBOARD_BUFFER_SIZE];
} KEYBOARD_DEVICE_EXTENSION, *PKEYBOARD_DEVICE_EXTENSION;

/* For ScreenFDO devices */
typedef struct _SCREEN_DEVICE_EXTENSION
{
    COMMON_FDO_DEVICE_EXTENSION Common;
    PDEVICE_OBJECT Green;

    PUCHAR VideoMemory;   /* Pointer to video memory */
    USHORT CharAttribute; /* Current color attribute */
    ULONG  Mode;
    UCHAR  ScanLines;     /* Height of a text line   */
    UCHAR  Rows;          /* Number of rows          */
    UCHAR  Columns;       /* Number of columns       */
    UCHAR  TabWidth;

    ULONG LogicalOffset;  /* Position of the cursor  */

    UCHAR SendBuffer[1024];
    ULONG SendBufferPosition;
    PDEVICE_OBJECT PreviousBlue;
} SCREEN_DEVICE_EXTENSION, *PSCREEN_DEVICE_EXTENSION;

/* For GreenFDO devices */
typedef struct _GREEN_DEVICE_EXTENSION
{
    COMMON_FDO_DEVICE_EXTENSION Common;
    PDEVICE_OBJECT Serial;

    SERIAL_LINE_CONTROL LineControl;
    SERIAL_TIMEOUTS Timeouts;

    PDEVICE_OBJECT KeyboardPdo;
    PDEVICE_OBJECT ScreenPdo;
    PDEVICE_OBJECT KeyboardFdo;
    PDEVICE_OBJECT ScreenFdo;
} GREEN_DEVICE_EXTENSION, *PGREEN_DEVICE_EXTENSION;

typedef struct _GREEN_DRIVER_EXTENSION
{
    UNICODE_STRING RegistryPath;

    UNICODE_STRING AttachedDeviceName;
    ULONG DeviceReported;
    ULONG SampleRate;

    PDEVICE_OBJECT GreenMainDO;
    PDEVICE_OBJECT LowerDevice;
} GREEN_DRIVER_EXTENSION, *PGREEN_DRIVER_EXTENSION;

/************************************ createclose.c */

NTSTATUS
GreenCreate(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp);

NTSTATUS
GreenClose(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp);

/************************************ dispatch.c */

NTSTATUS NTAPI
GreenDispatch(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp);

/************************************ keyboard.c */

NTSTATUS
KeyboardAddDevice(
    IN PDRIVER_OBJECT DriverObject,
    IN PDEVICE_OBJECT Pdo);

NTSTATUS
KeyboardInternalDeviceControl(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp);

/************************************ misc.c */

NTSTATUS
GreenDeviceIoControl(
    IN PDEVICE_OBJECT DeviceObject,
    IN ULONG CtlCode,
    IN PVOID InputBuffer OPTIONAL,
    IN ULONG InputBufferSize,
    IN OUT PVOID OutputBuffer OPTIONAL,
    IN OUT PULONG OutputBufferSize);

NTSTATUS
ReadRegistryEntries(
    IN PUNICODE_STRING RegistryPath,
    IN PGREEN_DRIVER_EXTENSION DriverExtension);

/************************************ pnp.c */

NTSTATUS NTAPI
GreenAddDevice(
    IN PDRIVER_OBJECT DriverObject,
    IN PDEVICE_OBJECT Pdo);

NTSTATUS
GreenPnp(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp);

/************************************ power.c */

NTSTATUS
GreenPower(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp);

/************************************ screen.c */

NTSTATUS
ScreenAddDevice(
    IN PDRIVER_OBJECT DriverObject,
    IN PDEVICE_OBJECT Pdo);

NTSTATUS
ScreenWrite(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp);

NTSTATUS
ScreenDeviceControl(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp);

/************************************ green.c */

NTSTATUS
GreenDuplicateUnicodeString(
    IN ULONG Flags,
    IN PCUNICODE_STRING SourceString,
    OUT PUNICODE_STRING DestinationString);

#endif