[mirror_edk2.git] / IntelFrameworkModulePkg / Bus / Isa / Ps2KeyboardDxe / Ps2Keyboard.h

/** @file\r
  PS/2 keyboard driver header file\r
\r
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef _PS2KEYBOARD_H_\r
#define _PS2KEYBOARD_H_\r
\r
#include <Uefi.h>\r
\r
#include <Protocol/SimpleTextIn.h>\r
#include <Protocol/SimpleTextInEx.h>\r
#include <Protocol/IsaIo.h>\r
#include <Protocol/DevicePath.h>\r
#include <Protocol/Ps2Policy.h>\r
\r
#include <Library/UefiDriverEntryPoint.h>\r
#include <Library/UefiLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/ReportStatusCodeLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/UefiRuntimeServicesTableLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/TimerLib.h>\r
#include <Library/PcdLib.h>\r
\r
//\r
// Global Variables\r
//\r
extern EFI_DRIVER_BINDING_PROTOCOL   gKeyboardControllerDriver;\r
extern EFI_COMPONENT_NAME_PROTOCOL   gPs2KeyboardComponentName;\r
extern EFI_COMPONENT_NAME2_PROTOCOL  gPs2KeyboardComponentName2;\r
\r
//\r
// Driver Private Data\r
//\r
#define KEYBOARD_CONSOLE_IN_DEV_SIGNATURE       SIGNATURE_32 ('k', 'k', 'e', 'y')\r
#define KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE SIGNATURE_32 ('k', 'c', 'e', 'n')\r
\r
typedef struct _KEYBOARD_CONSOLE_IN_EX_NOTIFY {\r
  UINTN                               Signature;\r
  EFI_KEY_DATA                        KeyData;\r
  EFI_KEY_NOTIFY_FUNCTION             KeyNotificationFn;\r
  LIST_ENTRY                          NotifyEntry;\r
} KEYBOARD_CONSOLE_IN_EX_NOTIFY;\r
\r
#define KEYBOARD_SCAN_CODE_MAX_COUNT  32\r
typedef struct {\r
  UINT8                               Buffer[KEYBOARD_SCAN_CODE_MAX_COUNT];\r
  UINTN                               Head;\r
  UINTN                               Tail;\r
} SCAN_CODE_QUEUE;\r
\r
#define KEYBOARD_EFI_KEY_MAX_COUNT    256\r
typedef struct {\r
  EFI_KEY_DATA                        Buffer[KEYBOARD_EFI_KEY_MAX_COUNT];\r
  UINTN                               Head;\r
  UINTN                               Tail;\r
} EFI_KEY_QUEUE;\r
\r
typedef struct {\r
  UINTN                               Signature;\r
\r
  EFI_HANDLE                          Handle;\r
  EFI_SIMPLE_TEXT_INPUT_PROTOCOL      ConIn;\r
  EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL   ConInEx;\r
  EFI_ISA_IO_PROTOCOL                 *IsaIo;\r
\r
  EFI_EVENT                           TimerEvent;\r
\r
  UINT32                              DataRegisterAddress;\r
  UINT32                              StatusRegisterAddress;\r
  UINT32                              CommandRegisterAddress;\r
\r
  BOOLEAN                             LeftCtrl;\r
  BOOLEAN                             RightCtrl;\r
  BOOLEAN                             LeftAlt;\r
  BOOLEAN                             RightAlt;\r
  BOOLEAN                             LeftShift;\r
  BOOLEAN                             RightShift;\r
  BOOLEAN                             LeftLogo;\r
  BOOLEAN                             RightLogo;\r
  BOOLEAN                             Menu;\r
  BOOLEAN                             SysReq;\r
\r
  BOOLEAN                             CapsLock;\r
  BOOLEAN                             NumLock;\r
  BOOLEAN                             ScrollLock;\r
\r
  BOOLEAN                             IsSupportPartialKey;\r
  //\r
  // Queue storing key scancodes\r
  //\r
  SCAN_CODE_QUEUE                     ScancodeQueue;\r
  EFI_KEY_QUEUE                       EfiKeyQueue;\r
  EFI_KEY_QUEUE                       EfiKeyQueueForNotify;\r
\r
  //\r
  // Error state\r
  //\r
  BOOLEAN                             KeyboardErr;\r
\r
  EFI_UNICODE_STRING_TABLE            *ControllerNameTable;\r
\r
  EFI_DEVICE_PATH_PROTOCOL            *DevicePath;\r
  //\r
  // Notification Function List\r
  //\r
  LIST_ENTRY                          NotifyList;\r
  EFI_EVENT                           KeyNotifyProcessEvent;\r
} KEYBOARD_CONSOLE_IN_DEV;\r
\r
#define KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a)  CR (a, KEYBOARD_CONSOLE_IN_DEV, ConIn, KEYBOARD_CONSOLE_IN_DEV_SIGNATURE)\r
#define TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a) \\r
  CR (a, \\r
      KEYBOARD_CONSOLE_IN_DEV, \\r
      ConInEx, \\r
      KEYBOARD_CONSOLE_IN_DEV_SIGNATURE \\r
      )\r
\r
#define TABLE_END 0x0\r
\r
//\r
// Driver entry point\r
//\r
/**\r
  The user Entry Point for module Ps2Keyboard. The user code starts with this function.\r
\r
  @param[in] ImageHandle    The firmware allocated handle for the EFI image.\r
  @param[in] SystemTable    A pointer to the EFI System Table.\r
\r
  @retval EFI_SUCCESS       The entry point is executed successfully.\r
  @retval other             Some error occurs when executing this entry point.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
InstallPs2KeyboardDriver (\r
  IN EFI_HANDLE           ImageHandle,\r
  IN EFI_SYSTEM_TABLE     *SystemTable\r
  );\r
\r
#define KEYBOARD_8042_DATA_REGISTER     0x60\r
#define KEYBOARD_8042_STATUS_REGISTER   0x64\r
#define KEYBOARD_8042_COMMAND_REGISTER  0x64\r
\r
#define KEYBOARD_KBEN                   0xF4\r
#define KEYBOARD_CMDECHO_ACK            0xFA\r
\r
#define KEYBOARD_MAX_TRY                256     // 256\r
#define KEYBOARD_TIMEOUT                65536   // 0.07s\r
#define KEYBOARD_WAITFORVALUE_TIMEOUT   1000000 // 1s\r
#define KEYBOARD_BAT_TIMEOUT            4000000 // 4s\r
#define KEYBOARD_TIMER_INTERVAL         200000  // 0.02s\r
#define SCANCODE_EXTENDED0              0xE0\r
#define SCANCODE_EXTENDED1              0xE1\r
#define SCANCODE_CTRL_MAKE              0x1D\r
#define SCANCODE_CTRL_BREAK             0x9D\r
#define SCANCODE_ALT_MAKE               0x38\r
#define SCANCODE_ALT_BREAK              0xB8\r
#define SCANCODE_LEFT_SHIFT_MAKE        0x2A\r
#define SCANCODE_LEFT_SHIFT_BREAK       0xAA\r
#define SCANCODE_RIGHT_SHIFT_MAKE       0x36\r
#define SCANCODE_RIGHT_SHIFT_BREAK      0xB6\r
#define SCANCODE_CAPS_LOCK_MAKE         0x3A\r
#define SCANCODE_NUM_LOCK_MAKE          0x45\r
#define SCANCODE_SCROLL_LOCK_MAKE       0x46\r
#define SCANCODE_DELETE_MAKE            0x53\r
#define SCANCODE_LEFT_LOGO_MAKE         0x5B //GUI key defined in Keyboard scan code\r
#define SCANCODE_LEFT_LOGO_BREAK        0xDB\r
#define SCANCODE_RIGHT_LOGO_MAKE        0x5C\r
#define SCANCODE_RIGHT_LOGO_BREAK       0xDC\r
#define SCANCODE_MENU_MAKE              0x5D //APPS key defined in Keyboard scan code\r
#define SCANCODE_MENU_BREAK             0xDD\r
#define SCANCODE_SYS_REQ_MAKE           0x37\r
#define SCANCODE_SYS_REQ_BREAK          0xB7\r
#define SCANCODE_SYS_REQ_MAKE_WITH_ALT  0x54\r
#define SCANCODE_SYS_REQ_BREAK_WITH_ALT 0xD4\r
\r
#define SCANCODE_MAX_MAKE               0x60\r
\r
\r
#define KEYBOARD_STATUS_REGISTER_HAS_OUTPUT_DATA     BIT0        ///< 0 - Output register has no data; 1 - Output register has data\r
#define KEYBOARD_STATUS_REGISTER_HAS_INPUT_DATA      BIT1        ///< 0 - Input register has no data;  1 - Input register has data\r
#define KEYBOARD_STATUS_REGISTER_SYSTEM_FLAG         BIT2        ///< Set to 0 after power on reset\r
#define KEYBOARD_STATUS_REGISTER_INPUT_DATA_TYPE     BIT3        ///< 0 - Data in input register is data; 1 - Data in input register is command\r
#define KEYBOARD_STATUS_REGISTER_ENABLE_FLAG         BIT4        ///< 0 - Keyboard is disable; 1 - Keyboard is enable\r
#define KEYBOARD_STATUS_REGISTER_TRANSMIT_TIMEOUT    BIT5        ///< 0 - Transmit is complete without timeout; 1 - Transmit is timeout without complete\r
#define KEYBOARD_STATUS_REGISTER_RECEIVE_TIMEOUT     BIT6        ///< 0 - Receive is complete without timeout; 1 - Receive is timeout without complete\r
#define KEYBOARD_STATUS_REGISTER_PARITY              BIT7        ///< 0 - Odd parity; 1 - Even parity\r
\r
#define KEYBOARD_8042_COMMAND_READ                          0x20\r
#define KEYBOARD_8042_COMMAND_WRITE                         0x60\r
#define KEYBOARD_8042_COMMAND_DISABLE_MOUSE_INTERFACE       0xA7\r
#define KEYBOARD_8042_COMMAND_ENABLE_MOUSE_INTERFACE        0xA8\r
#define KEYBOARD_8042_COMMAND_CONTROLLER_SELF_TEST          0xAA\r
#define KEYBOARD_8042_COMMAND_KEYBOARD_INTERFACE_SELF_TEST  0xAB\r
#define KEYBOARD_8042_COMMAND_DISABLE_KEYBOARD_INTERFACE    0xAD\r
\r
#define KEYBOARD_8048_COMMAND_CLEAR_OUTPUT_DATA             0xF4\r
#define KEYBOARD_8048_COMMAND_RESET                         0xFF\r
#define KEYBOARD_8048_COMMAND_SELECT_SCAN_CODE_SET          0xF0\r
\r
#define KEYBOARD_8048_RETURN_8042_BAT_SUCCESS               0xAA\r
#define KEYBOARD_8048_RETURN_8042_BAT_ERROR                 0xFC\r
#define KEYBOARD_8048_RETURN_8042_ACK                       0xFA\r
\r
\r
//\r
// Keyboard Controller Status\r
//\r
#define KBC_PARE  0x80  // Parity Error\r
#define KBC_TIM   0x40  // General Time Out\r
\r
//\r
// Other functions that are used among .c files\r
//\r
/**\r
  Show keyboard status lights according to\r
  indicators in ConsoleIn.\r
\r
  @param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r
\r
  @return status\r
\r
**/\r
EFI_STATUS\r
UpdateStatusLights (\r
  IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r
  );\r
\r
/**\r
  write key to keyboard.\r
\r
  @param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r
  @param Data      value wanted to be written\r
\r
  @retval EFI_TIMEOUT - GC_TODO: Add description for return value\r
  @retval EFI_SUCCESS - GC_TODO: Add description for return value\r
\r
**/\r
EFI_STATUS\r
KeyboardRead (\r
  IN KEYBOARD_CONSOLE_IN_DEV  *ConsoleIn,\r
  OUT UINT8                   *Data\r
  );\r
\r
/**\r
  Get scancode from scancode buffer and translate into EFI-scancode and unicode defined by EFI spec.\r
\r
  The function is always called in TPL_NOTIFY.\r
\r
  @param ConsoleIn KEYBOARD_CONSOLE_IN_DEV instance pointer\r
\r
**/\r
VOID\r
KeyGetchar (\r
  IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r
  );\r
\r
/**\r
  Process key notify.\r
\r
  @param  Event                 Indicates the event that invoke this function.\r
  @param  Context               Indicates the calling context.\r
**/\r
VOID\r
EFIAPI\r
KeyNotifyProcessHandler (\r
  IN  EFI_EVENT                 Event,\r
  IN  VOID                      *Context\r
  );\r
\r
/**\r
  Perform 8042 controller and keyboard Initialization.\r
  If ExtendedVerification is TRUE, do additional test for\r
  the keyboard interface\r
\r
  @param ConsoleIn - KEYBOARD_CONSOLE_IN_DEV instance pointer\r
  @param ExtendedVerification - indicates a thorough initialization\r
\r
  @retval EFI_DEVICE_ERROR Fail to init keyboard\r
  @retval EFI_SUCCESS      Success to init keyboard\r
**/\r
EFI_STATUS\r
InitKeyboard (\r
  IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,\r
  IN BOOLEAN                     ExtendedVerification\r
  );\r
\r
\r
\r
/**\r
  Timer event handler: read a series of scancodes from 8042\r
  and put them into memory scancode buffer.\r
  it read as much scancodes to either fill\r
  the memory buffer or empty the keyboard buffer.\r
  It is registered as running under TPL_NOTIFY\r
\r
  @param Event - The timer event\r
  @param Context - A KEYBOARD_CONSOLE_IN_DEV pointer\r
\r
**/\r
VOID\r
EFIAPI\r
KeyboardTimerHandler (\r
  IN EFI_EVENT    Event,\r
  IN VOID         *Context\r
  );\r
\r
/**\r
  logic reset keyboard\r
  Implement SIMPLE_TEXT_IN.Reset()\r
  Perform 8042 controller and keyboard initialization\r
\r
  @param This    Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r
  @param ExtendedVerification Indicate that the driver may perform a more\r
                              exhaustive verification operation of the device during\r
                              reset, now this par is ignored in this driver\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
KeyboardEfiReset (\r
  IN  EFI_SIMPLE_TEXT_INPUT_PROTOCOL  *This,\r
  IN  BOOLEAN                         ExtendedVerification\r
  );\r
\r
/**\r
  Implement SIMPLE_TEXT_IN.ReadKeyStroke().\r
  Retrieve key values for driver user.\r
\r
  @param This    Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r
  @param Key     The output buffer for key value\r
\r
  @retval EFI_SUCCESS success to read key stroke\r
**/\r
EFI_STATUS\r
EFIAPI\r
KeyboardReadKeyStroke (\r
  IN  EFI_SIMPLE_TEXT_INPUT_PROTOCOL  *This,\r
  OUT EFI_INPUT_KEY                   *Key\r
  );\r
\r
/**\r
  Event notification function for SIMPLE_TEXT_IN.WaitForKey event\r
  Signal the event if there is key available\r
\r
  @param Event    the event object\r
  @param Context  waitting context\r
\r
**/\r
VOID\r
EFIAPI\r
KeyboardWaitForKey (\r
  IN  EFI_EVENT               Event,\r
  IN  VOID                    *Context\r
  );\r
\r
/**\r
  Read status register.\r
\r
  @param ConsoleIn  Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r
\r
  @return value in status register\r
\r
**/\r
UINT8\r
KeyReadStatusRegister (\r
  IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r
  );\r
\r
/**\r
  Check whether there is Ps/2 Keyboard device in system by 0xF4 Keyboard Command\r
  If Keyboard receives 0xF4, it will respond with 'ACK'. If it doesn't respond, the device\r
  should not be in system.\r
\r
  @param[in]  ConsoleIn   Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r
\r
  @retval     TRUE                  Keyboard in System.\r
  @retval     FALSE                 Keyboard not in System.\r
**/\r
BOOLEAN\r
EFIAPI\r
CheckKeyboardConnect (\r
  IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r
  );\r
\r
/**\r
  Event notification function for SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx event\r
  Signal the event if there is key available\r
\r
  @param Event    event object\r
  @param Context  waiting context\r
\r
**/\r
VOID\r
EFIAPI\r
KeyboardWaitForKeyEx (\r
  IN  EFI_EVENT               Event,\r
  IN  VOID                    *Context\r
  );\r
\r
//\r
// Simple Text Input Ex protocol function prototypes\r
//\r
\r
/**\r
  Reset the input device and optionaly run diagnostics\r
\r
  @param This                 - Protocol instance pointer.\r
  @param ExtendedVerification - Driver may perform diagnostics on reset.\r
\r
  @retval EFI_SUCCESS           - The device was reset.\r
  @retval EFI_DEVICE_ERROR      - The device is not functioning properly and could\r
                                  not be reset.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
KeyboardEfiResetEx (\r
  IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL  *This,\r
  IN BOOLEAN                            ExtendedVerification\r
  );\r
\r
/**\r
    Reads the next keystroke from the input device. The WaitForKey Event can\r
    be used to test for existance of a keystroke via WaitForEvent () call.\r
\r
\r
    @param This       - Protocol instance pointer.\r
    @param KeyData    - A pointer to a buffer that is filled in with the keystroke\r
                 state data for the key that was pressed.\r
\r
    @retval EFI_SUCCESS           - The keystroke information was returned.\r
    @retval EFI_NOT_READY         - There was no keystroke data availiable.\r
    @retval EFI_DEVICE_ERROR      - The keystroke information was not returned due to\r
                            hardware errors.\r
    @retval EFI_INVALID_PARAMETER - KeyData is NULL.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
KeyboardReadKeyStrokeEx (\r
  IN  EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
  OUT EFI_KEY_DATA                      *KeyData\r
  );\r
\r
/**\r
  Set certain state for the input device.\r
\r
  @param This              - Protocol instance pointer.\r
  @param KeyToggleState    - A pointer to the EFI_KEY_TOGGLE_STATE to set the\r
                        state for the input device.\r
\r
  @retval EFI_SUCCESS           - The device state was set successfully.\r
  @retval EFI_DEVICE_ERROR      - The device is not functioning correctly and could\r
                            not have the setting adjusted.\r
  @retval EFI_UNSUPPORTED       - The device does not have the ability to set its state.\r
  @retval EFI_INVALID_PARAMETER - KeyToggleState is NULL.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
KeyboardSetState (\r
  IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL  *This,\r
  IN EFI_KEY_TOGGLE_STATE               *KeyToggleState\r
  );\r
\r
/**\r
    Register a notification function for a particular keystroke for the input device.\r
\r
    @param This                    - Protocol instance pointer.\r
    @param KeyData                 - A pointer to a buffer that is filled in with the keystroke\r
                                     information data for the key that was pressed. If KeyData.Key,\r
                                     KeyData.KeyState.KeyToggleState and KeyData.KeyState.KeyShiftState\r
                                     are 0, then any incomplete keystroke will trigger a notification of\r
                                     the KeyNotificationFunction.\r
    @param KeyNotificationFunction - Points to the function to be called when the key\r
                                     sequence is typed specified by KeyData. This notification function\r
                                     should be called at <=TPL_CALLBACK.\r
    @param NotifyHandle            - Points to the unique handle assigned to the registered notification.\r
\r
    @retval EFI_SUCCESS             - The notification function was registered successfully.\r
    @retval EFI_OUT_OF_RESOURCES    - Unable to allocate resources for necesssary data structures.\r
    @retval EFI_INVALID_PARAMETER   - KeyData or NotifyHandle is NULL.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
KeyboardRegisterKeyNotify (\r
  IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL  *This,\r
  IN EFI_KEY_DATA                       *KeyData,\r
  IN EFI_KEY_NOTIFY_FUNCTION            KeyNotificationFunction,\r
  OUT VOID                              **NotifyHandle\r
  );\r
\r
/**\r
    Remove a registered notification function from a particular keystroke.\r
\r
    @param This                    - Protocol instance pointer.\r
    @param NotificationHandle      - The handle of the notification function being unregistered.\r
\r
\r
    @retval EFI_SUCCESS             - The notification function was unregistered successfully.\r
    @retval EFI_INVALID_PARAMETER   - The NotificationHandle is invalid.\r
    @retval EFI_NOT_FOUND           - Can not find the matching entry in database.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
KeyboardUnregisterKeyNotify (\r
  IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL  *This,\r
  IN VOID                               *NotificationHandle\r
  );\r
\r
/**\r
  Push one key data to the EFI key buffer.\r
\r
  @param Queue     Pointer to instance of EFI_KEY_QUEUE.\r
  @param KeyData   The key data to push.\r
**/\r
VOID\r
PushEfikeyBufTail (\r
  IN  EFI_KEY_QUEUE         *Queue,\r
  IN  EFI_KEY_DATA          *KeyData\r
  );\r
\r
/**\r
  Judge whether is a registed key\r
\r
  @param RegsiteredData       A pointer to a buffer that is filled in with the keystroke\r
                              state data for the key that was registered.\r
  @param InputData            A pointer to a buffer that is filled in with the keystroke\r
                              state data for the key that was pressed.\r
\r
  @retval TRUE                Key be pressed matches a registered key.\r
  @retval FLASE               Match failed.\r
\r
**/\r
BOOLEAN\r
IsKeyRegistered (\r
  IN EFI_KEY_DATA  *RegsiteredData,\r
  IN EFI_KEY_DATA  *InputData\r
  );\r
\r
/**\r
  Initialize the key state.\r
\r
  @param  ConsoleIn     The KEYBOARD_CONSOLE_IN_DEV instance.\r
  @param  KeyState      A pointer to receive the key state information.\r
**/\r
VOID\r
InitializeKeyState (\r
  IN  KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,\r
  OUT EFI_KEY_STATE           *KeyState\r
  );\r
\r
#endif\r
Commit	Line	Data
f713c4fe	1	/** @file\r
f3d1e940	2	PS/2 keyboard driver header file\r
05fbd06d	3	\r
896ae6fc	4	Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
180a5a35	5	This program and the accompanying materials\r
df0dcb5e	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
05fbd06d	12	\r
	13	**/\r
	14	\r
f713c4fe	15	#ifndef _PS2KEYBOARD_H_\r
f713c4fe	16	#define _PS2KEYBOARD_H_\r
05fbd06d	17	\r
265dd403	18	#include <Uefi.h>\r
752f2e26	19	\r
752f2e26	20	#include <Protocol/SimpleTextIn.h>\r
f3d1e940	21	#include <Protocol/SimpleTextInEx.h>\r
752f2e26	22	#include <Protocol/IsaIo.h>\r
	23	#include <Protocol/DevicePath.h>\r
	24	#include <Protocol/Ps2Policy.h>\r
	25	\r
	26	#include <Library/UefiDriverEntryPoint.h>\r
	27	#include <Library/UefiLib.h>\r
	28	#include <Library/UefiBootServicesTableLib.h>\r
	29	#include <Library/ReportStatusCodeLib.h>\r
	30	#include <Library/DebugLib.h>\r
	31	#include <Library/UefiRuntimeServicesTableLib.h>\r
	32	#include <Library/MemoryAllocationLib.h>\r
f3d1e940	33	#include <Library/BaseLib.h>\r
f3d1e940	34	#include <Library/BaseMemoryLib.h>\r
b6763e03	35	#include <Library/TimerLib.h>\r
f6c014fb	36	#include <Library/PcdLib.h>\r
05fbd06d	37	\r
9f6531d1	38	//\r
	39	// Global Variables\r
	40	//\r
	41	extern EFI_DRIVER_BINDING_PROTOCOL gKeyboardControllerDriver;\r
	42	extern EFI_COMPONENT_NAME_PROTOCOL gPs2KeyboardComponentName;\r
	43	extern EFI_COMPONENT_NAME2_PROTOCOL gPs2KeyboardComponentName2;\r
	44	\r
05fbd06d	45	//\r
	46	// Driver Private Data\r
	47	//\r
c220787b	48	#define KEYBOARD_CONSOLE_IN_DEV_SIGNATURE SIGNATURE_32 ('k', 'k', 'e', 'y')\r
f02bd376	49	#define KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE SIGNATURE_32 ('k', 'c', 'e', 'n')\r
f3d1e940	50	\r
f3d1e940	51	typedef struct _KEYBOARD_CONSOLE_IN_EX_NOTIFY {\r
c220787b	52	UINTN Signature;\r
c220787b RN	53	EFI_KEY_DATA KeyData;\r
	54	EFI_KEY_NOTIFY_FUNCTION KeyNotificationFn;\r
	55	LIST_ENTRY NotifyEntry;\r
f3d1e940	56	} KEYBOARD_CONSOLE_IN_EX_NOTIFY;\r
f3d1e940	57	\r
c220787b RN	58	#define KEYBOARD_SCAN_CODE_MAX_COUNT 32\r
	59	typedef struct {\r
	60	UINT8 Buffer[KEYBOARD_SCAN_CODE_MAX_COUNT];\r
	61	UINTN Head;\r
	62	UINTN Tail;\r
	63	} SCAN_CODE_QUEUE;\r
	64	\r
	65	#define KEYBOARD_EFI_KEY_MAX_COUNT 256\r
	66	typedef struct {\r
	67	EFI_KEY_DATA Buffer[KEYBOARD_EFI_KEY_MAX_COUNT];\r
	68	UINTN Head;\r
	69	UINTN Tail;\r
	70	} EFI_KEY_QUEUE;\r
05fbd06d	71	\r
	72	typedef struct {\r
	73	UINTN Signature;\r
	74	\r
	75	EFI_HANDLE Handle;\r
	76	EFI_SIMPLE_TEXT_INPUT_PROTOCOL ConIn;\r
f3d1e940	77	EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL ConInEx;\r
05fbd06d	78	EFI_ISA_IO_PROTOCOL *IsaIo;\r
	79	\r
	80	EFI_EVENT TimerEvent;\r
	81	\r
	82	UINT32 DataRegisterAddress;\r
	83	UINT32 StatusRegisterAddress;\r
	84	UINT32 CommandRegisterAddress;\r
	85	\r
0d0bbc9f RN	86	BOOLEAN LeftCtrl;\r
	87	BOOLEAN RightCtrl;\r
	88	BOOLEAN LeftAlt;\r
	89	BOOLEAN RightAlt;\r
f3d1e940	90	BOOLEAN LeftShift;\r
5829afe3	91	BOOLEAN RightShift;\r
f3d1e940	92	BOOLEAN LeftLogo;\r
	93	BOOLEAN RightLogo;\r
	94	BOOLEAN Menu;\r
	95	BOOLEAN SysReq;\r
05fbd06d	96	\r
05fbd06d	97	BOOLEAN CapsLock;\r
	98	BOOLEAN NumLock;\r
	99	BOOLEAN ScrollLock;\r
	100	\r
5829afe3	101	BOOLEAN IsSupportPartialKey;\r
05fbd06d	102	//\r
c220787b	103	// Queue storing key scancodes\r
05fbd06d	104	//\r
c220787b RN	105	SCAN_CODE_QUEUE ScancodeQueue;\r
c220787b RN	106	EFI_KEY_QUEUE EfiKeyQueue;\r
7863d11c	107	EFI_KEY_QUEUE EfiKeyQueueForNotify;\r
05fbd06d	108	\r
	109	//\r
	110	// Error state\r
	111	//\r
	112	BOOLEAN KeyboardErr;\r
	113	\r
	114	EFI_UNICODE_STRING_TABLE *ControllerNameTable;\r
	115	\r
	116	EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r
f3d1e940	117	//\r
	118	// Notification Function List\r
	119	//\r
	120	LIST_ENTRY NotifyList;\r
7863d11c	121	EFI_EVENT KeyNotifyProcessEvent;\r
05fbd06d	122	} KEYBOARD_CONSOLE_IN_DEV;\r
	123	\r
	124	#define KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a) CR (a, KEYBOARD_CONSOLE_IN_DEV, ConIn, KEYBOARD_CONSOLE_IN_DEV_SIGNATURE)\r
f3d1e940	125	#define TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a) \\r
	126	CR (a, \\r
	127	KEYBOARD_CONSOLE_IN_DEV, \\r
	128	ConInEx, \\r
	129	KEYBOARD_CONSOLE_IN_DEV_SIGNATURE \\r
	130	)\r
05fbd06d	131	\r
	132	#define TABLE_END 0x0\r
	133	\r
05fbd06d	134	//\r
	135	// Driver entry point\r
	136	//\r
bcd70414	137	/**\r
	138	The user Entry Point for module Ps2Keyboard. The user code starts with this function.\r
	139	\r
5829afe3	140	@param[in] ImageHandle The firmware allocated handle for the EFI image.\r
bcd70414	141	@param[in] SystemTable A pointer to the EFI System Table.\r
5829afe3	142	\r
bcd70414	143	@retval EFI_SUCCESS The entry point is executed successfully.\r
	144	@retval other Some error occurs when executing this entry point.\r
	145	\r
	146	**/\r
05fbd06d	147	EFI_STATUS\r
f3d1e940	148	EFIAPI\r
05fbd06d	149	InstallPs2KeyboardDriver (\r
	150	IN EFI_HANDLE ImageHandle,\r
	151	IN EFI_SYSTEM_TABLE *SystemTable\r
ed66e1bc	152	);\r
05fbd06d	153	\r
	154	#define KEYBOARD_8042_DATA_REGISTER 0x60\r
	155	#define KEYBOARD_8042_STATUS_REGISTER 0x64\r
	156	#define KEYBOARD_8042_COMMAND_REGISTER 0x64\r
	157	\r
	158	#define KEYBOARD_KBEN 0xF4\r
	159	#define KEYBOARD_CMDECHO_ACK 0xFA\r
	160	\r
05f89b17	161	#define KEYBOARD_MAX_TRY 256 // 256\r
05fbd06d	162	#define KEYBOARD_TIMEOUT 65536 // 0.07s\r
	163	#define KEYBOARD_WAITFORVALUE_TIMEOUT 1000000 // 1s\r
	164	#define KEYBOARD_BAT_TIMEOUT 4000000 // 4s\r
	165	#define KEYBOARD_TIMER_INTERVAL 200000 // 0.02s\r
0d0bbc9f	166	#define SCANCODE_EXTENDED0 0xE0\r
05fbd06d	167	#define SCANCODE_EXTENDED1 0xE1\r
	168	#define SCANCODE_CTRL_MAKE 0x1D\r
	169	#define SCANCODE_CTRL_BREAK 0x9D\r
	170	#define SCANCODE_ALT_MAKE 0x38\r
	171	#define SCANCODE_ALT_BREAK 0xB8\r
	172	#define SCANCODE_LEFT_SHIFT_MAKE 0x2A\r
	173	#define SCANCODE_LEFT_SHIFT_BREAK 0xAA\r
	174	#define SCANCODE_RIGHT_SHIFT_MAKE 0x36\r
	175	#define SCANCODE_RIGHT_SHIFT_BREAK 0xB6\r
	176	#define SCANCODE_CAPS_LOCK_MAKE 0x3A\r
	177	#define SCANCODE_NUM_LOCK_MAKE 0x45\r
	178	#define SCANCODE_SCROLL_LOCK_MAKE 0x46\r
c220787b	179	#define SCANCODE_DELETE_MAKE 0x53\r
f3d1e940	180	#define SCANCODE_LEFT_LOGO_MAKE 0x5B //GUI key defined in Keyboard scan code\r
	181	#define SCANCODE_LEFT_LOGO_BREAK 0xDB\r
	182	#define SCANCODE_RIGHT_LOGO_MAKE 0x5C\r
	183	#define SCANCODE_RIGHT_LOGO_BREAK 0xDC\r
5829afe3	184	#define SCANCODE_MENU_MAKE 0x5D //APPS key defined in Keyboard scan code\r
f3d1e940	185	#define SCANCODE_MENU_BREAK 0xDD\r
f3d1e940	186	#define SCANCODE_SYS_REQ_MAKE 0x37\r
0d0bbc9f RN	187	#define SCANCODE_SYS_REQ_BREAK 0xB7\r
	188	#define SCANCODE_SYS_REQ_MAKE_WITH_ALT 0x54\r
	189	#define SCANCODE_SYS_REQ_BREAK_WITH_ALT 0xD4\r
	190	\r
f3d1e940	191	#define SCANCODE_MAX_MAKE 0x60\r
05fbd06d	192	\r
e8123186	193	\r
b6763e03	194	#define KEYBOARD_STATUS_REGISTER_HAS_OUTPUT_DATA BIT0 ///< 0 - Output register has no data; 1 - Output register has data\r
	195	#define KEYBOARD_STATUS_REGISTER_HAS_INPUT_DATA BIT1 ///< 0 - Input register has no data; 1 - Input register has data\r
	196	#define KEYBOARD_STATUS_REGISTER_SYSTEM_FLAG BIT2 ///< Set to 0 after power on reset\r
	197	#define KEYBOARD_STATUS_REGISTER_INPUT_DATA_TYPE BIT3 ///< 0 - Data in input register is data; 1 - Data in input register is command\r
	198	#define KEYBOARD_STATUS_REGISTER_ENABLE_FLAG BIT4 ///< 0 - Keyboard is disable; 1 - Keyboard is enable\r
	199	#define KEYBOARD_STATUS_REGISTER_TRANSMIT_TIMEOUT BIT5 ///< 0 - Transmit is complete without timeout; 1 - Transmit is timeout without complete\r
	200	#define KEYBOARD_STATUS_REGISTER_RECEIVE_TIMEOUT BIT6 ///< 0 - Receive is complete without timeout; 1 - Receive is timeout without complete\r
	201	#define KEYBOARD_STATUS_REGISTER_PARITY BIT7 ///< 0 - Odd parity; 1 - Even parity\r
	202	\r
	203	#define KEYBOARD_8042_COMMAND_READ 0x20\r
	204	#define KEYBOARD_8042_COMMAND_WRITE 0x60\r
	205	#define KEYBOARD_8042_COMMAND_DISABLE_MOUSE_INTERFACE 0xA7\r
	206	#define KEYBOARD_8042_COMMAND_ENABLE_MOUSE_INTERFACE 0xA8\r
	207	#define KEYBOARD_8042_COMMAND_CONTROLLER_SELF_TEST 0xAA\r
	208	#define KEYBOARD_8042_COMMAND_KEYBOARD_INTERFACE_SELF_TEST 0xAB\r
	209	#define KEYBOARD_8042_COMMAND_DISABLE_KEYBOARD_INTERFACE 0xAD\r
	210	\r
	211	#define KEYBOARD_8048_COMMAND_CLEAR_OUTPUT_DATA 0xF4\r
	212	#define KEYBOARD_8048_COMMAND_RESET 0xFF\r
	213	#define KEYBOARD_8048_COMMAND_SELECT_SCAN_CODE_SET 0xF0\r
	214	\r
	215	#define KEYBOARD_8048_RETURN_8042_BAT_SUCCESS 0xAA\r
	216	#define KEYBOARD_8048_RETURN_8042_BAT_ERROR 0xFC\r
	217	#define KEYBOARD_8048_RETURN_8042_ACK 0xFA\r
	218	\r
	219	\r
007c18f5	220	//\r
	221	// Keyboard Controller Status\r
	222	//\r
	223	#define KBC_PARE 0x80 // Parity Error\r
	224	#define KBC_TIM 0x40 // General Time Out\r
	225	\r
05fbd06d	226	//\r
	227	// Other functions that are used among .c files\r
	228	//\r
bcd70414	229	/**\r
	230	Show keyboard status lights according to\r
	231	indicators in ConsoleIn.\r
	232	\r
	233	@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r
5829afe3	234	\r
bcd70414	235	@return status\r
f3d1e940	236	\r
bcd70414	237	**/\r
f3d1e940	238	EFI_STATUS\r
	239	UpdateStatusLights (\r
	240	IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r
ed66e1bc	241	);\r
f3d1e940	242	\r
bcd70414	243	/**\r
f713c4fe	244	write key to keyboard.\r
f3d1e940	245	\r
bcd70414	246	@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r
bcd70414	247	@param Data value wanted to be written\r
f3d1e940	248	\r
bcd70414	249	@retval EFI_TIMEOUT - GC_TODO: Add description for return value\r
bcd70414	250	@retval EFI_SUCCESS - GC_TODO: Add description for return value\r
f3d1e940	251	\r
bcd70414	252	**/\r
05fbd06d	253	EFI_STATUS\r
	254	KeyboardRead (\r
	255	IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,\r
	256	OUT UINT8 *Data\r
ed66e1bc	257	);\r
05fbd06d	258	\r
bcd70414	259	/**\r
c220787b	260	Get scancode from scancode buffer and translate into EFI-scancode and unicode defined by EFI spec.\r
05fbd06d	261	\r
c220787b	262	The function is always called in TPL_NOTIFY.\r
05fbd06d	263	\r
c220787b	264	@param ConsoleIn KEYBOARD_CONSOLE_IN_DEV instance pointer\r
05fbd06d	265	\r
bcd70414	266	**/\r
c220787b	267	VOID\r
05fbd06d	268	KeyGetchar (\r
05fbd06d	269	IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r
ed66e1bc	270	);\r
05fbd06d	271	\r
7863d11c SZ	272	/**\r
	273	Process key notify.\r
	274	\r
	275	@param Event Indicates the event that invoke this function.\r
	276	@param Context Indicates the calling context.\r
	277	**/\r
	278	VOID\r
	279	EFIAPI\r
	280	KeyNotifyProcessHandler (\r
	281	IN EFI_EVENT Event,\r
	282	IN VOID *Context\r
	283	);\r
	284	\r
bcd70414	285	/**\r
f713c4fe	286	Perform 8042 controller and keyboard Initialization.\r
bcd70414	287	If ExtendedVerification is TRUE, do additional test for\r
bcd70414	288	the keyboard interface\r
05fbd06d	289	\r
bcd70414	290	@param ConsoleIn - KEYBOARD_CONSOLE_IN_DEV instance pointer\r
bcd70414	291	@param ExtendedVerification - indicates a thorough initialization\r
05fbd06d	292	\r
bcd70414	293	@retval EFI_DEVICE_ERROR Fail to init keyboard\r
	294	@retval EFI_SUCCESS Success to init keyboard\r
	295	**/\r
05fbd06d	296	EFI_STATUS\r
	297	InitKeyboard (\r
	298	IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,\r
	299	IN BOOLEAN ExtendedVerification\r
ed66e1bc	300	);\r
05fbd06d	301	\r
05fbd06d	302	\r
05fbd06d	303	\r
bcd70414	304	/**\r
	305	Timer event handler: read a series of scancodes from 8042\r
	306	and put them into memory scancode buffer.\r
	307	it read as much scancodes to either fill\r
	308	the memory buffer or empty the keyboard buffer.\r
	309	It is registered as running under TPL_NOTIFY\r
05fbd06d	310	\r
bcd70414	311	@param Event - The timer event\r
bcd70414	312	@param Context - A KEYBOARD_CONSOLE_IN_DEV pointer\r
05fbd06d	313	\r
bcd70414	314	**/\r
05fbd06d	315	VOID\r
	316	EFIAPI\r
	317	KeyboardTimerHandler (\r
	318	IN EFI_EVENT Event,\r
	319	IN VOID *Context\r
ed66e1bc	320	);\r
05fbd06d	321	\r
bcd70414	322	/**\r
	323	logic reset keyboard\r
	324	Implement SIMPLE_TEXT_IN.Reset()\r
	325	Perform 8042 controller and keyboard initialization\r
05fbd06d	326	\r
bcd70414	327	@param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r
5829afe3	328	@param ExtendedVerification Indicate that the driver may perform a more\r
	329	exhaustive verification operation of the device during\r
	330	reset, now this par is ignored in this driver\r
05fbd06d	331	\r
bcd70414	332	**/\r
05fbd06d	333	EFI_STATUS\r
	334	EFIAPI\r
	335	KeyboardEfiReset (\r
	336	IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
	337	IN BOOLEAN ExtendedVerification\r
ed66e1bc	338	);\r
05fbd06d	339	\r
bcd70414	340	/**\r
	341	Implement SIMPLE_TEXT_IN.ReadKeyStroke().\r
	342	Retrieve key values for driver user.\r
05fbd06d	343	\r
bcd70414	344	@param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r
5829afe3	345	@param Key The output buffer for key value\r
05fbd06d	346	\r
bcd70414	347	@retval EFI_SUCCESS success to read key stroke\r
bcd70414	348	**/\r
05fbd06d	349	EFI_STATUS\r
	350	EFIAPI\r
	351	KeyboardReadKeyStroke (\r
	352	IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
	353	OUT EFI_INPUT_KEY *Key\r
ed66e1bc	354	);\r
05fbd06d	355	\r
bcd70414	356	/**\r
	357	Event notification function for SIMPLE_TEXT_IN.WaitForKey event\r
	358	Signal the event if there is key available\r
05fbd06d	359	\r
bcd70414	360	@param Event the event object\r
bcd70414	361	@param Context waitting context\r
05fbd06d	362	\r
bcd70414	363	**/\r
05fbd06d	364	VOID\r
	365	EFIAPI\r
	366	KeyboardWaitForKey (\r
	367	IN EFI_EVENT Event,\r
	368	IN VOID *Context\r
ed66e1bc	369	);\r
05fbd06d	370	\r
bcd70414	371	/**\r
f713c4fe	372	Read status register.\r
05fbd06d	373	\r
bcd70414	374	@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r
05fbd06d	375	\r
bcd70414	376	@return value in status register\r
05fbd06d	377	\r
bcd70414	378	**/\r
05fbd06d	379	UINT8\r
	380	KeyReadStatusRegister (\r
	381	IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r
ed66e1bc	382	);\r
05fbd06d	383	\r
	384	/**\r
	385	Check whether there is Ps/2 Keyboard device in system by 0xF4 Keyboard Command\r
	386	If Keyboard receives 0xF4, it will respond with 'ACK'. If it doesn't respond, the device\r
	387	should not be in system.\r
	388	\r
f713c4fe	389	@param[in] ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r
05fbd06d	390	\r
f3d1e940	391	@retval TRUE Keyboard in System.\r
f3d1e940	392	@retval FALSE Keyboard not in System.\r
05fbd06d	393	**/\r
	394	BOOLEAN\r
	395	EFIAPI\r
	396	CheckKeyboardConnect (\r
	397	IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r
ed66e1bc	398	);\r
f3d1e940	399	\r
bcd70414	400	/**\r
	401	Event notification function for SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx event\r
	402	Signal the event if there is key available\r
	403	\r
	404	@param Event event object\r
	405	@param Context waiting context\r
	406	\r
	407	**/\r
f3d1e940	408	VOID\r
	409	EFIAPI\r
	410	KeyboardWaitForKeyEx (\r
	411	IN EFI_EVENT Event,\r
	412	IN VOID *Context\r
5829afe3	413	);\r
f3d1e940	414	\r
	415	//\r
	416	// Simple Text Input Ex protocol function prototypes\r
	417	//\r
	418	\r
bcd70414	419	/**\r
	420	Reset the input device and optionaly run diagnostics\r
	421	\r
	422	@param This - Protocol instance pointer.\r
	423	@param ExtendedVerification - Driver may perform diagnostics on reset.\r
	424	\r
	425	@retval EFI_SUCCESS - The device was reset.\r
5829afe3	426	@retval EFI_DEVICE_ERROR - The device is not functioning properly and could\r
bcd70414	427	not be reset.\r
	428	\r
	429	**/\r
f3d1e940	430	EFI_STATUS\r
	431	EFIAPI\r
	432	KeyboardEfiResetEx (\r
	433	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
	434	IN BOOLEAN ExtendedVerification\r
ed66e1bc	435	);\r
f3d1e940	436	\r
bcd70414	437	/**\r
5829afe3	438	Reads the next keystroke from the input device. The WaitForKey Event can\r
bcd70414	439	be used to test for existance of a keystroke via WaitForEvent () call.\r
f3d1e940	440	\r
f3d1e940	441	\r
bcd70414	442	@param This - Protocol instance pointer.\r
5829afe3	443	@param KeyData - A pointer to a buffer that is filled in with the keystroke\r
bcd70414	444	state data for the key that was pressed.\r
f3d1e940	445	\r
bcd70414	446	@retval EFI_SUCCESS - The keystroke information was returned.\r
bcd70414	447	@retval EFI_NOT_READY - There was no keystroke data availiable.\r
5829afe3	448	@retval EFI_DEVICE_ERROR - The keystroke information was not returned due to\r
bcd70414	449	hardware errors.\r
5829afe3	450	@retval EFI_INVALID_PARAMETER - KeyData is NULL.\r
f3d1e940	451	\r
bcd70414	452	**/\r
f3d1e940	453	EFI_STATUS\r
	454	EFIAPI\r
	455	KeyboardReadKeyStrokeEx (\r
	456	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
	457	OUT EFI_KEY_DATA *KeyData\r
ed66e1bc	458	);\r
f3d1e940	459	\r
bcd70414	460	/**\r
bcd70414	461	Set certain state for the input device.\r
f3d1e940	462	\r
bcd70414	463	@param This - Protocol instance pointer.\r
5829afe3	464	@param KeyToggleState - A pointer to the EFI_KEY_TOGGLE_STATE to set the\r
bcd70414	465	state for the input device.\r
f3d1e940	466	\r
bcd70414	467	@retval EFI_SUCCESS - The device state was set successfully.\r
5829afe3	468	@retval EFI_DEVICE_ERROR - The device is not functioning correctly and could\r
bcd70414	469	not have the setting adjusted.\r
bcd70414	470	@retval EFI_UNSUPPORTED - The device does not have the ability to set its state.\r
5829afe3	471	@retval EFI_INVALID_PARAMETER - KeyToggleState is NULL.\r
f3d1e940	472	\r
bcd70414	473	**/\r
f3d1e940	474	EFI_STATUS\r
	475	EFIAPI\r
	476	KeyboardSetState (\r
	477	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
	478	IN EFI_KEY_TOGGLE_STATE *KeyToggleState\r
ed66e1bc	479	);\r
f3d1e940	480	\r
bcd70414	481	/**\r
	482	Register a notification function for a particular keystroke for the input device.\r
	483	\r
	484	@param This - Protocol instance pointer.\r
5829afe3	485	@param KeyData - A pointer to a buffer that is filled in with the keystroke\r
cc9a430c DB	486	information data for the key that was pressed. If KeyData.Key,\r
	487	KeyData.KeyState.KeyToggleState and KeyData.KeyState.KeyShiftState\r
	488	are 0, then any incomplete keystroke will trigger a notification of\r
	489	the KeyNotificationFunction.\r
5829afe3	490	@param KeyNotificationFunction - Points to the function to be called when the key\r
cc9a430c DB	491	sequence is typed specified by KeyData. This notification function\r
cc9a430c DB	492	should be called at <=TPL_CALLBACK.\r
5829afe3	493	@param NotifyHandle - Points to the unique handle assigned to the registered notification.\r
bcd70414	494	\r
	495	@retval EFI_SUCCESS - The notification function was registered successfully.\r
	496	@retval EFI_OUT_OF_RESOURCES - Unable to allocate resources for necesssary data structures.\r
5829afe3	497	@retval EFI_INVALID_PARAMETER - KeyData or NotifyHandle is NULL.\r
	498	\r
	499	**/\r
f3d1e940	500	EFI_STATUS\r
	501	EFIAPI\r
	502	KeyboardRegisterKeyNotify (\r
	503	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
	504	IN EFI_KEY_DATA *KeyData,\r
	505	IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,\r
402e4a9d	506	OUT VOID **NotifyHandle\r
ed66e1bc	507	);\r
f3d1e940	508	\r
bcd70414	509	/**\r
bcd70414	510	Remove a registered notification function from a particular keystroke.\r
f3d1e940	511	\r
5829afe3	512	@param This - Protocol instance pointer.\r
bcd70414	513	@param NotificationHandle - The handle of the notification function being unregistered.\r
f3d1e940	514	\r
5829afe3	515	\r
bcd70414	516	@retval EFI_SUCCESS - The notification function was unregistered successfully.\r
bcd70414	517	@retval EFI_INVALID_PARAMETER - The NotificationHandle is invalid.\r
5829afe3	518	@retval EFI_NOT_FOUND - Can not find the matching entry in database.\r
	519	\r
	520	**/\r
f3d1e940	521	EFI_STATUS\r
	522	EFIAPI\r
	523	KeyboardUnregisterKeyNotify (\r
	524	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
402e4a9d	525	IN VOID *NotificationHandle\r
ed66e1bc	526	);\r
f3d1e940	527	\r
c220787b RN	528	/**\r
	529	Push one key data to the EFI key buffer.\r
	530	\r
	531	@param Queue Pointer to instance of EFI_KEY_QUEUE.\r
	532	@param KeyData The key data to push.\r
	533	**/\r
	534	VOID\r
	535	PushEfikeyBufTail (\r
	536	IN EFI_KEY_QUEUE *Queue,\r
	537	IN EFI_KEY_DATA *KeyData\r
	538	);\r
	539	\r
	540	/**\r
	541	Judge whether is a registed key\r
	542	\r
5829afe3	543	@param RegsiteredData A pointer to a buffer that is filled in with the keystroke\r
c220787b	544	state data for the key that was registered.\r
5829afe3	545	@param InputData A pointer to a buffer that is filled in with the keystroke\r
c220787b RN	546	state data for the key that was pressed.\r
	547	\r
	548	@retval TRUE Key be pressed matches a registered key.\r
5829afe3	549	@retval FLASE Match failed.\r
5829afe3	550	\r
c220787b RN	551	**/\r
	552	BOOLEAN\r
	553	IsKeyRegistered (\r
	554	IN EFI_KEY_DATA *RegsiteredData,\r
	555	IN EFI_KEY_DATA *InputData\r
	556	);\r
5829afe3	557	\r
896ae6fc RN	558	/**\r
	559	Initialize the key state.\r
	560	\r
	561	@param ConsoleIn The KEYBOARD_CONSOLE_IN_DEV instance.\r
	562	@param KeyState A pointer to receive the key state information.\r
	563	**/\r
	564	VOID\r
	565	InitializeKeyState (\r
	566	IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,\r
	567	OUT EFI_KEY_STATE *KeyState\r
	568	);\r
	569	\r
05fbd06d	570	#endif\r