/** @file
Header file for USB Keyboard Driver's Data Structures.
Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>
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 _EFI_USB_KB_H_
#define _EFI_USB_KB_H_
#include <Uefi.h>
#include <Protocol/SimpleTextIn.h>
#include <Protocol/SimpleTextInEx.h>
#include <Protocol/HiiDatabase.h>
#include <Protocol/UsbIo.h>
#include <Protocol/DevicePath.h>
#include <Guid/HiiKeyBoardLayout.h>
#include <Guid/UsbKeyBoardLayout.h>
#include <Library/DebugLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PcdLib.h>
#include <Library/UefiUsbLib.h>
#include <Library/HiiLib.h>
#include <IndustryStandard/Usb.h>
#define KEYBOARD_TIMER_INTERVAL 200000 // 0.02s
#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 {
BOOLEAN Down;
UINT8 KeyCode;
} USB_KEY;
typedef struct {
VOID *Buffer[MAX_KEY_ALLOWED + 1];
UINTN Head;
UINTN Tail;
UINTN ItemSize;
} USB_SIMPLE_QUEUE;
#define USB_KB_DEV_SIGNATURE SIGNATURE_32 ('u', 'k', 'b', 'd')
#define USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE SIGNATURE_32 ('u', 'k', 'b', 'x')
typedef struct _KEYBOARD_CONSOLE_IN_EX_NOTIFY {
UINTN Signature;
EFI_KEY_DATA KeyData;
EFI_KEY_NOTIFY_FUNCTION KeyNotificationFn;
LIST_ENTRY NotifyEntry;
} KEYBOARD_CONSOLE_IN_EX_NOTIFY;
#define USB_NS_KEY_SIGNATURE SIGNATURE_32 ('u', 'n', 's', 'k')
typedef struct {
UINTN Signature;
LIST_ENTRY Link;
//
// The number of EFI_NS_KEY_MODIFIER children definitions
//
UINTN KeyCount;
//
// NsKey[0] : Non-spacing key
// NsKey[1] ~ NsKey[KeyCount] : Physical keys
//
EFI_KEY_DESCRIPTOR *NsKey;
} USB_NS_KEY;
#define USB_NS_KEY_FORM_FROM_LINK(a) CR (a, USB_NS_KEY, Link, USB_NS_KEY_SIGNATURE)
///
/// Structure to describe USB keyboard device
///
typedef struct {
UINTN Signature;
EFI_HANDLE ControllerHandle;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_EVENT DelayedRecoveryEvent;
EFI_SIMPLE_TEXT_INPUT_PROTOCOL SimpleInput;
EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL SimpleInputEx;
EFI_USB_IO_PROTOCOL *UsbIo;
EFI_USB_INTERFACE_DESCRIPTOR InterfaceDescriptor;
EFI_USB_ENDPOINT_DESCRIPTOR IntEndpointDescriptor;
USB_SIMPLE_QUEUE UsbKeyQueue;
USB_SIMPLE_QUEUE EfiKeyQueue;
BOOLEAN CtrlOn;
BOOLEAN AltOn;
BOOLEAN ShiftOn;
BOOLEAN NumLockOn;
BOOLEAN CapsOn;
BOOLEAN ScrollOn;
UINT8 LastKeyCodeArray[8];
UINT8 CurKeyCode;
EFI_EVENT TimerEvent;
UINT8 RepeatKey;
EFI_EVENT RepeatTimer;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
BOOLEAN LeftCtrlOn;
BOOLEAN LeftAltOn;
BOOLEAN LeftShiftOn;
BOOLEAN LeftLogoOn;
BOOLEAN RightCtrlOn;
BOOLEAN RightAltOn;
BOOLEAN RightShiftOn;
BOOLEAN RightLogoOn;
BOOLEAN MenuKeyOn;
BOOLEAN SysReqOn;
BOOLEAN AltGrOn;
BOOLEAN IsSupportPartialKey;
EFI_KEY_STATE KeyState;
//
// Notification function list
//
LIST_ENTRY NotifyList;
//
// Non-spacing key list
//
LIST_ENTRY NsKeyList;
USB_NS_KEY *CurrentNsKey;
EFI_KEY_DESCRIPTOR *KeyConvertionTable;
EFI_EVENT KeyboardLayoutEvent;
} USB_KB_DEV;
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gUsbKeyboardDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gUsbKeyboardComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gUsbKeyboardComponentName2;
#define USB_KB_DEV_FROM_THIS(a) \
CR(a, USB_KB_DEV, SimpleInput, USB_KB_DEV_SIGNATURE)
#define TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS(a) \
CR(a, USB_KB_DEV, SimpleInputEx, USB_KB_DEV_SIGNATURE)
//
// According to Universal Serial Bus HID Usage Tables document ver 1.12,
// a Boot Keyboard should support the keycode range from 0x0 to 0x65 and 0xE0 to 0xE7.
// 0xE0 to 0xE7 are for modifier keys, and 0x0 to 0x3 are reserved for typical
// keyboard status or keyboard errors.
// So the number of valid non-modifier USB keycodes is 0x62, and the number of
// valid keycodes is 0x6A.
//
#define NUMBER_OF_VALID_NON_MODIFIER_USB_KEYCODE 0x62
#define NUMBER_OF_VALID_USB_KEYCODE 0x6A
//
// 0x0 to 0x3 are reserved for typical keyboard status or keyboard errors.
//
#define USBKBD_VALID_KEYCODE(Key) ((UINT8) (Key) > 3)
typedef struct {
UINT8 NumLock : 1;
UINT8 CapsLock : 1;
UINT8 ScrollLock : 1;
UINT8 Resrvd : 5;
} LED_MAP;
//
// Functions of Driver Binding Protocol
//
/**
Check whether USB keyboard driver supports this device.
@param This The USB keyboard driver binding protocol.
@param Controller The controller handle to check.
@param RemainingDevicePath The remaining device path.
@retval EFI_SUCCESS The driver supports this controller.
@retval other This device isn't supported.
**/
EFI_STATUS
EFIAPI
USBKeyboardDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Starts the keyboard device with this driver.
This function produces Simple Text Input Protocol and Simple Text Input Ex Protocol,
initializes the keyboard device, and submit Asynchronous Interrupt Transfer to manage
this keyboard device.
@param This The USB keyboard driver binding instance.
@param Controller Handle of device to bind driver to.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS The controller is controlled by the usb keyboard driver.
@retval EFI_UNSUPPORTED No interrupt endpoint can be found.
@retval Other This controller cannot be started.
**/
EFI_STATUS
EFIAPI
USBKeyboardDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Stop the USB keyboard device handled by this driver.
@param This The USB keyboard driver binding protocol.
@param Controller The controller to release.
@param NumberOfChildren The number of handles in ChildHandleBuffer.
@param ChildHandleBuffer The array of child handle.
@retval EFI_SUCCESS The device was stopped.
@retval EFI_UNSUPPORTED Simple Text In Protocol or Simple Text In Ex Protocol
is not installed on Controller.
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
@retval Others Fail to uninstall protocols attached on the device.
**/
EFI_STATUS
EFIAPI
USBKeyboardDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
//
// EFI Component Name Functions
//
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param DriverName A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UsbKeyboardComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
);
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param ControllerName A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UsbKeyboardComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
//
// Functions of Simple Text Input Protocol
//
/**
Reset the input device and optionaly run diagnostics
There are 2 types of reset for USB keyboard.
For non-exhaustive reset, only keyboard buffer is cleared.
For exhaustive reset, in addition to clearance of keyboard buffer, the hardware status
is also re-initialized.
@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
USBKeyboardReset (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
);
/**
Reads the next keystroke from the input device.
@param This The EFI_SIMPLE_TEXT_INPUT_PROTOCOL instance.
@param Key A pointer to a buffer that is filled in with the keystroke
information 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 keydtroke information was not returned due to
hardware errors.
**/
EFI_STATUS
EFIAPI
USBKeyboardReadKeyStroke (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
OUT EFI_INPUT_KEY *Key
);
//
// Simple Text Input Ex protocol functions
//
/**
Resets the input device hardware.
The Reset() function resets the input device hardware. As part
of initialization process, the firmware/device will make a quick
but reasonable attempt to verify that the device is functioning.
If the ExtendedVerification flag is TRUE the firmware may take
an extended amount of time to verify the device is operating on
reset. Otherwise the reset operation is to occur as quickly as
possible. The hardware verification process is not defined by
this specification and is left up to the platform firmware or
driver to implement.
@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
@param ExtendedVerification Indicates that the driver may perform a more exhaustive
verification operation of the device during reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning correctly and could not be reset.
**/
EFI_STATUS
EFIAPI
USBKeyboardResetEx (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
);
/**
Reads the next keystroke from the input device.
@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 available.
@retval EFI_DEVICE_ERROR The keystroke information was not returned due to
hardware errors.
@retval EFI_INVALID_PARAMETER KeyData is NULL.
**/
EFI_STATUS
EFIAPI
USBKeyboardReadKeyStrokeEx (
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 appropriately.
@retval EFI_DEVICE_ERROR The device is not functioning correctly and could
not have the setting adjusted.
@retval EFI_UNSUPPORTED The device does not support the ability to have its state set.
@retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
**/
EFI_STATUS
EFIAPI
USBKeyboardSetState (
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 or KeyNotificationFunction is NULL.
**/
EFI_STATUS
EFIAPI
USBKeyboardRegisterKeyNotify (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_KEY_DATA *KeyData,
IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
OUT VOID **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 Cannot find the matching entry in database.
**/
EFI_STATUS
EFIAPI
USBKeyboardUnregisterKeyNotify (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN VOID *NotificationHandle
);
/**
Event notification function registered for EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx
and EFI_SIMPLE_TEXT_INPUT_PROTOCOL.WaitForKey.
@param Event Event to be signaled when a key is pressed.
@param Context Points to USB_KB_DEV instance.
**/
VOID
EFIAPI
USBKeyboardWaitForKey (
IN EFI_EVENT Event,
IN VOID *Context
);
/**
Free keyboard notify list.
@param NotifyList The keyboard notify list to free.
@retval EFI_SUCCESS Free the notify list successfully.
@retval EFI_INVALID_PARAMETER NotifyList is NULL.
**/
EFI_STATUS
KbdFreeNotifyList (
IN OUT LIST_ENTRY *NotifyList
);
/**
Check whether the pressed key matches a registered key or not.
@param RegsiteredData A pointer to keystroke data for the key that was registered.
@param InputData A pointer to keystroke data for the key that was pressed.
@retval TRUE Key pressed matches a registered key.
@retval FLASE Key pressed does not matche a registered key.
**/
BOOLEAN
IsKeyRegistered (
IN EFI_KEY_DATA *RegsiteredData,
IN EFI_KEY_DATA *InputData
);
/**
Timer handler to convert the key from USB.
@param Event Indicates the event that invoke this function.
@param Context Indicates the calling context.
**/
VOID
EFIAPI
USBKeyboardTimerHandler (
IN EFI_EVENT Event,
IN VOID *Context
);
#endif