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/*++
Copyright (c) 2006, 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.
Module Name:
EfiKey.h
Abstract:
Header file for USB Keyboard Driver's Data Structures
Revision History
--*/
#ifndef _USB_KB_H
#define _USB_KB_H
#include <IndustryStandard/Usb.h>
#define MAX_KEY_ALLOWED 32
#define HZ 1000 * 1000 * 10
#define USBKBD_REPEAT_DELAY ((HZ) / 2)
#define USBKBD_REPEAT_RATE ((HZ) / 50)
#define CLASS_HID 3
#define SUBCLASS_BOOT 1
#define PROTOCOL_KEYBOARD 1
#define BOOT_PROTOCOL 0
#define REPORT_PROTOCOL 1
typedef struct {
UINT8 Down;
UINT8 KeyCode;
} USB_KEY;
typedef struct {
USB_KEY buffer[MAX_KEY_ALLOWED + 1];
UINT8 bHead;
UINT8 bTail;
} USB_KB_BUFFER;
#define USB_KB_DEV_SIGNATURE EFI_SIGNATURE_32 ('u', 'k', 'b', 'd')
typedef struct {
UINTN Signature;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_EVENT DelayedRecoveryEvent;
EFI_SIMPLE_TEXT_IN_PROTOCOL SimpleInput;
EFI_USB_IO_PROTOCOL *UsbIo;
EFI_USB_INTERFACE_DESCRIPTOR InterfaceDescriptor;
EFI_USB_ENDPOINT_DESCRIPTOR IntEndpointDescriptor;
USB_KB_BUFFER KeyboardBuffer;
UINT8 CtrlOn;
UINT8 AltOn;
UINT8 ShiftOn;
UINT8 NumLockOn;
UINT8 CapsOn;
UINT8 ScrollOn;
UINT8 LastKeyCodeArray[8];
UINT8 CurKeyChar;
UINT8 RepeatKey;
EFI_EVENT RepeatTimer;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
} USB_KB_DEV;
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gUsbKeyboardDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gUsbKeyboardComponentName;
extern EFI_GUID gEfiUsbKeyboardDriverGuid;
VOID
KbdReportStatusCode (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
IN EFI_STATUS_CODE_TYPE CodeType,
IN EFI_STATUS_CODE_VALUE Value
);
#define USB_KB_DEV_FROM_THIS(a) \
CR(a, USB_KB_DEV, SimpleInput, USB_KB_DEV_SIGNATURE)
#define MOD_CONTROL_L 0x01
#define MOD_CONTROL_R 0x10
#define MOD_SHIFT_L 0x02
#define MOD_SHIFT_R 0x20
#define MOD_ALT_L 0x04
#define MOD_ALT_R 0x40
#define MOD_WIN_L 0x08
#define MOD_WIN_R 0x80
typedef struct {
UINT8 Mask;
UINT8 Key;
} KB_MODIFIER;
#define USB_KEYCODE_MAX_MAKE 0x64
#define USBKBD_VALID_KEYCODE(key) ((UINT8) (key) > 3)
typedef struct {
UINT8 NumLock : 1;
UINT8 CapsLock : 1;
UINT8 ScrollLock : 1;
UINT8 Resrvd : 5;
} LED_MAP;
//
// Prototypes
// Driver model protocol interface
//
EFI_STATUS
EFIAPI
USBKeyboardDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
EFI_STATUS
EFIAPI
USBKeyboardDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
EFI_STATUS
EFIAPI
USBKeyboardDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
#endif
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