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audk/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h

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/**@file
PS/2 keyboard driver header file
Copyright (c) 2006 - 2007, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _PS2KEYBOARD_H
#define _PS2KEYBOARD_H
#include <PiDxe.h>
#include <Framework/StatusCode.h>
#include <Protocol/SimpleTextIn.h>
#include <Protocol/SimpleTextInEx.h>
#include <Protocol/IsaIo.h>
#include <Protocol/DevicePath.h>
#include <Protocol/Ps2Policy.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
//
// Driver Private Data
//
#define KEYBOARD_BUFFER_MAX_COUNT 32
#define KEYBOARD_CONSOLE_IN_DEV_SIGNATURE SIGNATURE_32 ('k', 'k', 'e', 'y')
#define KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE SIGNATURE_32 ('k', 'c', 'e', 'n')
typedef struct _KEYBOARD_CONSOLE_IN_EX_NOTIFY {
UINTN Signature;
EFI_HANDLE NotifyHandle;
EFI_KEY_DATA KeyData;
EFI_KEY_NOTIFY_FUNCTION KeyNotificationFn;
LIST_ENTRY NotifyEntry;
} KEYBOARD_CONSOLE_IN_EX_NOTIFY;
typedef struct {
UINTN Signature;
EFI_HANDLE Handle;
EFI_SIMPLE_TEXT_INPUT_PROTOCOL ConIn;
EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL ConInEx;
EFI_ISA_IO_PROTOCOL *IsaIo;
EFI_EVENT TimerEvent;
UINT32 DataRegisterAddress;
UINT32 StatusRegisterAddress;
UINT32 CommandRegisterAddress;
EFI_INPUT_KEY Key;
EFI_KEY_STATE KeyState;
BOOLEAN LeftShift;
BOOLEAN RightShift;
BOOLEAN LeftLogo;
BOOLEAN RightLogo;
BOOLEAN Menu;
BOOLEAN SysReq;
BOOLEAN Ctrl;
BOOLEAN Alt;
BOOLEAN Shift;
BOOLEAN CapsLock;
BOOLEAN NumLock;
BOOLEAN ScrollLock;
//
// Buffer storing key scancodes
//
UINT8 ScancodeBuf[KEYBOARD_BUFFER_MAX_COUNT];
UINT32 ScancodeBufStartPos;
UINT32 ScancodeBufEndPos;
UINT32 ScancodeBufCount;
//
// Indicators of the key pressing state, used in detecting Alt+Ctrl+Del
//
BOOLEAN Ctrled;
BOOLEAN Alted;
//
// Error state
//
BOOLEAN KeyboardErr;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
//
// Notification Function List
//
LIST_ENTRY NotifyList;
} KEYBOARD_CONSOLE_IN_DEV;
#define KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a) CR (a, KEYBOARD_CONSOLE_IN_DEV, ConIn, KEYBOARD_CONSOLE_IN_DEV_SIGNATURE)
#define TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a) \
CR (a, \
KEYBOARD_CONSOLE_IN_DEV, \
ConInEx, \
KEYBOARD_CONSOLE_IN_DEV_SIGNATURE \
)
#define TABLE_END 0x0
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gKeyboardControllerDriver;
extern EFI_COMPONENT_NAME_PROTOCOL gPs2KeyboardComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gPs2KeyboardComponentName2;
//
// Driver entry point
//
/**
The user Entry Point for module Ps2Keyboard. The user code starts with this function.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
InstallPs2KeyboardDriver (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
);
#define KEYBOARD_8042_DATA_REGISTER 0x60
#define KEYBOARD_8042_STATUS_REGISTER 0x64
#define KEYBOARD_8042_COMMAND_REGISTER 0x64
#define KEYBOARD_KBEN 0xF4
#define KEYBOARD_CMDECHO_ACK 0xFA
#define KEYBOARD_MAX_TRY 256 // 256
#define KEYBOARD_TIMEOUT 65536 // 0.07s
#define KEYBOARD_WAITFORVALUE_TIMEOUT 1000000 // 1s
#define KEYBOARD_BAT_TIMEOUT 4000000 // 4s
#define KEYBOARD_TIMER_INTERVAL 200000 // 0.02s
#define SCANCODE_EXTENDED 0xE0
#define SCANCODE_EXTENDED1 0xE1
#define SCANCODE_CTRL_MAKE 0x1D
#define SCANCODE_CTRL_BREAK 0x9D
#define SCANCODE_ALT_MAKE 0x38
#define SCANCODE_ALT_BREAK 0xB8
#define SCANCODE_LEFT_SHIFT_MAKE 0x2A
#define SCANCODE_LEFT_SHIFT_BREAK 0xAA
#define SCANCODE_RIGHT_SHIFT_MAKE 0x36
#define SCANCODE_RIGHT_SHIFT_BREAK 0xB6
#define SCANCODE_CAPS_LOCK_MAKE 0x3A
#define SCANCODE_NUM_LOCK_MAKE 0x45
#define SCANCODE_SCROLL_LOCK_MAKE 0x46
#define SCANCODE_LEFT_LOGO_MAKE 0x5B //GUI key defined in Keyboard scan code
#define SCANCODE_LEFT_LOGO_BREAK 0xDB
#define SCANCODE_RIGHT_LOGO_MAKE 0x5C
#define SCANCODE_RIGHT_LOGO_BREAK 0xDC
#define SCANCODE_MENU_MAKE 0x5D //APPS key defined in Keyboard scan code
#define SCANCODE_MENU_BREAK 0xDD
#define SCANCODE_SYS_REQ_MAKE 0x37
#define SCANCODE_MAX_MAKE 0x60
//
// Other functions that are used among .c files
//
/**
Show keyboard status lights according to
indicators in ConsoleIn.
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
@return status
**/
EFI_STATUS
UpdateStatusLights (
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
);
/**
write key to keyboard
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
@param Data value wanted to be written
@retval EFI_TIMEOUT - GC_TODO: Add description for return value
@retval EFI_SUCCESS - GC_TODO: Add description for return value
**/
EFI_STATUS
KeyboardRead (
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
OUT UINT8 *Data
);
/**
Get scancode from scancode buffer
and translate into EFI-scancode and unicode defined by EFI spec
The function is always called in TPL_NOTIFY
@param ConsoleIn KEYBOARD_CONSOLE_IN_DEV instance pointer
@retval EFI_NOT_READY - Input from console not ready yet.
@retval EFI_SUCCESS - Function executed successfully.
**/
EFI_STATUS
KeyGetchar (
IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
);
/**
Perform 8042 controller and keyboard Initialization
If ExtendedVerification is TRUE, do additional test for
the keyboard interface
@param ConsoleIn - KEYBOARD_CONSOLE_IN_DEV instance pointer
@param ExtendedVerification - indicates a thorough initialization
@retval EFI_DEVICE_ERROR Fail to init keyboard
@retval EFI_SUCCESS Success to init keyboard
**/
EFI_STATUS
InitKeyboard (
IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,
IN BOOLEAN ExtendedVerification
);
/**
Disable the keyboard interface of the 8042 controller
@param ConsoleIn - the device instance
@return status of issuing disable command
**/
EFI_STATUS
DisableKeyboard (
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
);
/**
Timer event handler: read a series of scancodes from 8042
and put them into memory scancode buffer.
it read as much scancodes to either fill
the memory buffer or empty the keyboard buffer.
It is registered as running under TPL_NOTIFY
@param Event - The timer event
@param Context - A KEYBOARD_CONSOLE_IN_DEV pointer
**/
VOID
EFIAPI
KeyboardTimerHandler (
IN EFI_EVENT Event,
IN VOID *Context
);
/**
logic reset keyboard
Implement SIMPLE_TEXT_IN.Reset()
Perform 8042 controller and keyboard initialization
@param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL
@param ExtendedVerification Indicate that the driver may perform a more
exhaustive verification operation of the device during
reset, now this par is ignored in this driver
**/
EFI_STATUS
EFIAPI
KeyboardEfiReset (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
);
/**
Implement SIMPLE_TEXT_IN.ReadKeyStroke().
Retrieve key values for driver user.
@param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL
@param Key The output buffer for key value
@retval EFI_SUCCESS success to read key stroke
**/
EFI_STATUS
EFIAPI
KeyboardReadKeyStroke (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
OUT EFI_INPUT_KEY *Key
);
/**
Event notification function for SIMPLE_TEXT_IN.WaitForKey event
Signal the event if there is key available
@param Event the event object
@param Context waitting context
**/
VOID
EFIAPI
KeyboardWaitForKey (
IN EFI_EVENT Event,
IN VOID *Context
);
/**
Read status register
@param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV
@return value in status register
**/
UINT8
KeyReadStatusRegister (
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
);
/**
Check whether there is Ps/2 Keyboard device in system by 0xF4 Keyboard Command
If Keyboard receives 0xF4, it will respond with 'ACK'. If it doesn't respond, the device
should not be in system.
@param[in] BiosKeyboardPrivate Keyboard Private Data Structure
@retval TRUE Keyboard in System.
@retval FALSE Keyboard not in System.
**/
BOOLEAN
EFIAPI
CheckKeyboardConnect (
IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn
);
/**
Event notification function for SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx event
Signal the event if there is key available
@param Event event object
@param Context waiting context
**/
VOID
EFIAPI
KeyboardWaitForKeyEx (
IN EFI_EVENT Event,
IN VOID *Context
);
//
// Simple Text Input Ex protocol function prototypes
//
/**
Reset the input device and optionaly run diagnostics
@param This - Protocol instance pointer.
@param ExtendedVerification - Driver may perform diagnostics on reset.
@retval EFI_SUCCESS - The device was reset.
@retval EFI_DEVICE_ERROR - The device is not functioning properly and could
not be reset.
**/
EFI_STATUS
EFIAPI
KeyboardEfiResetEx (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
);
/**
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
@param This - Protocol instance pointer.
@param KeyData - A pointer to a buffer that is filled in with the keystroke
state data for the key that was pressed.
@retval EFI_SUCCESS - The keystroke information was returned.
@retval EFI_NOT_READY - There was no keystroke data availiable.
@retval EFI_DEVICE_ERROR - The keystroke information was not returned due to
hardware errors.
@retval EFI_INVALID_PARAMETER - KeyData is NULL.
**/
EFI_STATUS
EFIAPI
KeyboardReadKeyStrokeEx (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
OUT EFI_KEY_DATA *KeyData
);
/**
Set certain state for the input device.
@param This - Protocol instance pointer.
@param KeyToggleState - A pointer to the EFI_KEY_TOGGLE_STATE to set the
state for the input device.
@retval EFI_SUCCESS - The device state was set successfully.
@retval EFI_DEVICE_ERROR - The device is not functioning correctly and could
not have the setting adjusted.
@retval EFI_UNSUPPORTED - The device does not have the ability to set its state.
@retval EFI_INVALID_PARAMETER - KeyToggleState is NULL.
**/
EFI_STATUS
EFIAPI
KeyboardSetState (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_KEY_TOGGLE_STATE *KeyToggleState
);
/**
Register a notification function for a particular keystroke for the input device.
@param This - Protocol instance pointer.
@param KeyData - A pointer to a buffer that is filled in with the keystroke
information data for the key that was pressed.
@param KeyNotificationFunction - Points to the function to be called when the key
sequence is typed specified by KeyData.
@param NotifyHandle - Points to the unique handle assigned to the registered notification.
@retval EFI_SUCCESS - The notification function was registered successfully.
@retval EFI_OUT_OF_RESOURCES - Unable to allocate resources for necesssary data structures.
@retval EFI_INVALID_PARAMETER - KeyData or NotifyHandle is NULL.
**/
EFI_STATUS
EFIAPI
KeyboardRegisterKeyNotify (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_KEY_DATA *KeyData,
IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
OUT EFI_HANDLE *NotifyHandle
);
/**
Remove a registered notification function from a particular keystroke.
@param This - Protocol instance pointer.
@param NotificationHandle - The handle of the notification function being unregistered.
@retval EFI_SUCCESS - The notification function was unregistered successfully.
@retval EFI_INVALID_PARAMETER - The NotificationHandle is invalid.
@retval EFI_NOT_FOUND - Can not find the matching entry in database.
**/
EFI_STATUS
EFIAPI
KeyboardUnregisterKeyNotify (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_HANDLE NotificationHandle
);
#endif
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