/** @file

Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

Module Name:

  WinNtGop.h

Abstract:

  Private data for the Gop driver that is bound to the WinNt Thunk protocol


**/

#ifndef _WIN_NT_GOP_H_
#define _WIN_NT_GOP_H_


#include <Uefi.h>
#include <WinNtDxe.h>

#include <Guid/EventGroup.h>
#include <Protocol/WinNtIo.h>
#include <Protocol/ComponentName.h>
#include <Protocol/SimpleTextIn.h>
#include <Protocol/SimpleTextInEx.h>
#include <Protocol/DriverBinding.h>
#include <Protocol/GraphicsOutput.h>

#include <Library/DebugLib.h>
#include <Library/BaseLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>

//
// WM_SYSKEYDOWN/WM_SYSKEYUP Notification
// lParam
// bit 24: Specifies whether the key is an extended key,
// such as the right-hand ALT and CTRL keys that appear on
// an enhanced 101- or 102-key keyboard.
// The value is 1 if it is an extended key; otherwise, it is 0.
// bit 29:Specifies the context code.
// The value is 1 if the ALT key is down while the key is pressed/released;
// it is 0 if the WM_SYSKEYDOWN message is posted to the active window
// because no window has the keyboard focus.
#define GOP_EXTENDED_KEY         (0x1 << 24)
#define GOP_ALT_KEY_PRESSED      (0x1 << 29)

#define KEYBOARD_TIMER_INTERVAL         200000  // 0.02s

#define MAX_Q 256

typedef struct {
  UINTN             Front;
  UINTN             Rear;
  EFI_KEY_DATA      Q[MAX_Q];
  CRITICAL_SECTION  Cs;
} GOP_QUEUE_FIXED;

#define WIN_NT_GOP_CLASS_NAME       L"WinNtGopWindow"

#define GOP_PRIVATE_DATA_SIGNATURE  SIGNATURE_32 ('S', 'g', 'o', 'N')

#define WIN_NT_GOP_SIMPLE_TEXTIN_EX_NOTIFY_SIGNATURE SIGNATURE_32 ('W', 'g', 'S', 'n')

typedef struct _WIN_NT_GOP_SIMPLE_TEXTIN_EX_NOTIFY {
  UINTN                                 Signature;
  EFI_KEY_DATA                          KeyData;
  EFI_KEY_NOTIFY_FUNCTION               KeyNotificationFn;
  LIST_ENTRY                            NotifyEntry;
} WIN_NT_GOP_SIMPLE_TEXTIN_EX_NOTIFY;

#define GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER 0xffff

typedef struct {
  UINT32                     HorizontalResolution;
  UINT32                     VerticalResolution;
  UINT32                     ColorDepth;
  UINT32                     RefreshRate;
} GOP_MODE_DATA;

typedef struct {
  UINT64                        Signature;

  EFI_HANDLE                    Handle;
  EFI_GRAPHICS_OUTPUT_PROTOCOL  GraphicsOutput;
  EFI_SIMPLE_TEXT_INPUT_PROTOCOL   SimpleTextIn;

  EFI_WIN_NT_THUNK_PROTOCOL     *WinNtThunk;

  EFI_UNICODE_STRING_TABLE      *ControllerNameTable;

  //
  // GOP Private Data for QueryMode ()
  //
  GOP_MODE_DATA                 *ModeData;

  //
  // GOP Private Data knowing when to start hardware
  //
  BOOLEAN                       HardwareNeedsStarting;

  CHAR16                        *WindowName;
  CHAR16                        Buffer[160];

  HANDLE                        ThreadInited; // Semaphore
  HANDLE                        ThreadHandle; // Thread
  DWORD                         ThreadId;

  HWND                          WindowHandle;
  WNDCLASSEX                    WindowsClass;

  //
  // This screen is used to redraw the scree when windows events happen. It's
  // updated in the main thread and displayed in the windows thread.
  //
  BITMAPV4HEADER                *VirtualScreenInfo;
  RGBQUAD                       *VirtualScreen;

  EFI_GRAPHICS_OUTPUT_BLT_PIXEL *FillLine;

  //
  // Keyboard Queue used by Simple Text In.
  // QueueForRead:   WinProc thread adds, and main thread removes.
  // QueueForNotify: WinProc thread adds, and timer thread removes.
  //
  GOP_QUEUE_FIXED               QueueForRead;
  GOP_QUEUE_FIXED               QueueForNotify;

  EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL SimpleTextInEx;
  EFI_KEY_STATE                     KeyState;
  LIST_ENTRY                        NotifyList;
  BOOLEAN                           LeftShift;
  BOOLEAN                           RightShift;
  BOOLEAN                           LeftAlt;
  BOOLEAN                           RightAlt;
  BOOLEAN                           LeftCtrl;
  BOOLEAN                           RightCtrl;
  BOOLEAN                           LeftLogo;
  BOOLEAN                           RightLogo;
  BOOLEAN                           Menu;
  BOOLEAN                           SysReq;
  BOOLEAN                           NumLock;
  BOOLEAN                           ScrollLock;
  BOOLEAN                           CapsLock;
  BOOLEAN                           IsPartialKeySupport;
  EFI_EVENT                         TimerEvent;
} GOP_PRIVATE_DATA;

#define GOP_PRIVATE_DATA_FROM_THIS(a)  \
         CR(a, GOP_PRIVATE_DATA, GraphicsOutput, GOP_PRIVATE_DATA_SIGNATURE)

#define GOP_PRIVATE_DATA_FROM_TEXT_IN_THIS(a)  \
         CR(a, GOP_PRIVATE_DATA, SimpleTextIn, GOP_PRIVATE_DATA_SIGNATURE)

#define GOP_PRIVATE_DATA_FROM_TEXT_IN_EX_THIS(a)  \
         CR(a, GOP_PRIVATE_DATA, SimpleTextInEx, GOP_PRIVATE_DATA_SIGNATURE)

//
// Global Protocol Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL   gWinNtGopDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL   gWinNtGopComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL  gWinNtGopComponentName2;


//
// Gop Hardware abstraction internal worker functions
//

/**
  TODO: Add function description

  @param  WinNtIo              TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
WinNtGopSupported (
  IN  EFI_WIN_NT_IO_PROTOCOL  *WinNtIo
  );


/**
  TODO: Add function description

  @param  Private              TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
WinNtGopConstructor (
  IN  GOP_PRIVATE_DATA    *Private
  );


/**
  TODO: Add function description

  @param  Private              TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
WinNtGopDestructor (
  IN  GOP_PRIVATE_DATA    *Private
  );

//
// UEFI 2.0 driver model prototypes for Win NT GOP
//


/**
  TODO: Add function description

  @param  ImageHandle          TODO: add argument description
  @param  SystemTable          TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
EFIAPI
WinNtGopInitialize (
  IN EFI_HANDLE            ImageHandle,
  IN EFI_SYSTEM_TABLE      *SystemTable
  );


/**
  TODO: Add function description

  @param  This                 TODO: add argument description
  @param  Handle               TODO: add argument description
  @param  RemainingDevicePath  TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
EFIAPI
WinNtGopDriverBindingSupported (
  IN  EFI_DRIVER_BINDING_PROTOCOL     *This,
  IN  EFI_HANDLE                      Handle,
  IN  EFI_DEVICE_PATH_PROTOCOL        *RemainingDevicePath
  );


/**
  TODO: Add function description

  @param  This                 TODO: add argument description
  @param  Handle               TODO: add argument description
  @param  RemainingDevicePath  TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
EFIAPI
WinNtGopDriverBindingStart (
  IN  EFI_DRIVER_BINDING_PROTOCOL     *This,
  IN  EFI_HANDLE                      Handle,
  IN  EFI_DEVICE_PATH_PROTOCOL        *RemainingDevicePath
  );


/**
  TODO: Add function description

  @param  This                 TODO: add argument description
  @param  Handle               TODO: add argument description
  @param  NumberOfChildren     TODO: add argument description
  @param  ChildHandleBuffer    TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
EFIAPI
WinNtGopDriverBindingStop (
  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,
  IN  EFI_HANDLE                   Handle,
  IN  UINTN                        NumberOfChildren,
  IN  EFI_HANDLE                   *ChildHandleBuffer
  );


/**
  TODO: Add function description

  @param  Private              TODO: add argument description
  @param  Key                  TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
GopPrivateAddKey (
  IN  GOP_PRIVATE_DATA    *Private,
  IN  EFI_INPUT_KEY       Key
  );


/**
  TODO: Add function description

  @param  Private              TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
WinNtGopInitializeSimpleTextInForWindow (
  IN  GOP_PRIVATE_DATA    *Private
  );


/**
  TODO: Add function description

  @param  Private              TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
WinNtGopDestroySimpleTextInForWindow (
  IN  GOP_PRIVATE_DATA    *Private
  );



#endif