--- /dev/null
+/** @file
+ Simple Text Input Ex protocol from the UEFI 2.0 specification.
+
+ This protocol defines an extension to the EFI_SIMPLE_TEXT_INPUT_PROTOCOL
+ which exposes much more state and modifier information from the input device,
+ also allows one to register a notification for a particular keystroke.
+
+ Copyright (c) 2006 - 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 __SIMPLE_TEXT_IN_EX_H__
+#define __SIMPLE_TEXT_IN_EX_H__
+
+FILE_LICENCE ( BSD3 );
+
+#include <ipxe/efi/Protocol/SimpleTextIn.h>
+
+#define EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID \
+ {0xdd9e7534, 0x7762, 0x4698, { 0x8c, 0x14, 0xf5, 0x85, 0x17, 0xa6, 0x25, 0xaa } }
+
+
+typedef struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL;
+
+/**
+ 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.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_INPUT_RESET_EX)(
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ IN BOOLEAN ExtendedVerification
+);
+
+
+///
+/// EFI_KEY_TOGGLE_STATE. The toggle states are defined.
+/// They are: EFI_TOGGLE_STATE_VALID, EFI_SCROLL_LOCK_ACTIVE
+/// EFI_NUM_LOCK_ACTIVE, EFI_CAPS_LOCK_ACTIVE
+///
+typedef UINT8 EFI_KEY_TOGGLE_STATE;
+
+typedef struct _EFI_KEY_STATE {
+ ///
+ /// Reflects the currently pressed shift
+ /// modifiers for the input device. The
+ /// returned value is valid only if the high
+ /// order bit has been set.
+ ///
+ UINT32 KeyShiftState;
+ ///
+ /// Reflects the current internal state of
+ /// various toggled attributes. The returned
+ /// value is valid only if the high order
+ /// bit has been set.
+ ///
+ EFI_KEY_TOGGLE_STATE KeyToggleState;
+} EFI_KEY_STATE;
+
+typedef struct {
+ ///
+ /// The EFI scan code and Unicode value returned from the input device.
+ ///
+ EFI_INPUT_KEY Key;
+ ///
+ /// The current state of various toggled attributes as well as input modifier values.
+ ///
+ EFI_KEY_STATE KeyState;
+} EFI_KEY_DATA;
+
+//
+// Any Shift or Toggle State that is valid should have
+// high order bit set.
+//
+// Shift state
+//
+#define EFI_SHIFT_STATE_VALID 0x80000000
+#define EFI_RIGHT_SHIFT_PRESSED 0x00000001
+#define EFI_LEFT_SHIFT_PRESSED 0x00000002
+#define EFI_RIGHT_CONTROL_PRESSED 0x00000004
+#define EFI_LEFT_CONTROL_PRESSED 0x00000008
+#define EFI_RIGHT_ALT_PRESSED 0x00000010
+#define EFI_LEFT_ALT_PRESSED 0x00000020
+#define EFI_RIGHT_LOGO_PRESSED 0x00000040
+#define EFI_LEFT_LOGO_PRESSED 0x00000080
+#define EFI_MENU_KEY_PRESSED 0x00000100
+#define EFI_SYS_REQ_PRESSED 0x00000200
+
+//
+// Toggle state
+//
+#define EFI_TOGGLE_STATE_VALID 0x80
+#define EFI_KEY_STATE_EXPOSED 0x40
+#define EFI_SCROLL_LOCK_ACTIVE 0x01
+#define EFI_NUM_LOCK_ACTIVE 0x02
+#define EFI_CAPS_LOCK_ACTIVE 0x04
+
+//
+// EFI Scan codes
+//
+#define SCAN_F11 0x0015
+#define SCAN_F12 0x0016
+#define SCAN_PAUSE 0x0048
+#define SCAN_F13 0x0068
+#define SCAN_F14 0x0069
+#define SCAN_F15 0x006A
+#define SCAN_F16 0x006B
+#define SCAN_F17 0x006C
+#define SCAN_F18 0x006D
+#define SCAN_F19 0x006E
+#define SCAN_F20 0x006F
+#define SCAN_F21 0x0070
+#define SCAN_F22 0x0071
+#define SCAN_F23 0x0072
+#define SCAN_F24 0x0073
+#define SCAN_MUTE 0x007F
+#define SCAN_VOLUME_UP 0x0080
+#define SCAN_VOLUME_DOWN 0x0081
+#define SCAN_BRIGHTNESS_UP 0x0100
+#define SCAN_BRIGHTNESS_DOWN 0x0101
+#define SCAN_SUSPEND 0x0102
+#define SCAN_HIBERNATE 0x0103
+#define SCAN_TOGGLE_DISPLAY 0x0104
+#define SCAN_RECOVERY 0x0105
+#define SCAN_EJECT 0x0106
+
+/**
+ The function reads the next keystroke from the input device. If
+ there is no pending keystroke the function returns
+ EFI_NOT_READY. If there is a pending keystroke, then
+ KeyData.Key.ScanCode is the EFI scan code defined in Error!
+ Reference source not found. The KeyData.Key.UnicodeChar is the
+ actual printable character or is zero if the key does not
+ represent a printable character (control key, function key,
+ etc.). The KeyData.KeyState is shift state for the character
+ reflected in KeyData.Key.UnicodeChar or KeyData.Key.ScanCode .
+ When interpreting the data from this function, it should be
+ noted that if a class of printable characters that are
+ normally adjusted by shift modifiers (e.g. Shift Key + "f"
+ key) would be presented solely as a KeyData.Key.UnicodeChar
+ without the associated shift state. So in the previous example
+ of a Shift Key + "f" key being pressed, the only pertinent
+ data returned would be KeyData.Key.UnicodeChar with the value
+ of "F". This of course would not typically be the case for
+ non-printable characters such as the pressing of the Right
+ Shift Key + F10 key since the corresponding returned data
+ would be reflected both in the KeyData.KeyState.KeyShiftState
+ and KeyData.Key.ScanCode values. UEFI drivers which implement
+ the EFI_SIMPLE_TEXT_INPUT_EX protocol are required to return
+ KeyData.Key and KeyData.KeyState values. These drivers must
+ always return the most current state of
+ KeyData.KeyState.KeyShiftState and
+ KeyData.KeyState.KeyToggleState. It should also be noted that
+ certain input devices may not be able to produce shift or toggle
+ state information, and in those cases the high order bit in the
+ respective Toggle and Shift state fields should not be active.
+
+
+ @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
+
+ @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.
+ EFI_DEVICE_ERROR The keystroke
+ information was not returned due to
+ hardware errors.
+
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_INPUT_READ_KEY_EX)(
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ OUT EFI_KEY_DATA *KeyData
+);
+
+/**
+ The SetState() function allows the input device hardware to
+ have state settings adjusted.
+
+ @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
+
+ @param KeyToggleState 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.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_SET_STATE)(
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ IN EFI_KEY_TOGGLE_STATE *KeyToggleState
+);
+
+///
+/// The function will be called when the key sequence is typed specified by KeyData.
+///
+typedef
+EFI_STATUS
+(EFIAPI *EFI_KEY_NOTIFY_FUNCTION)(
+ IN EFI_KEY_DATA *KeyData
+);
+
+/**
+ The RegisterKeystrokeNotify() function registers a function
+ which will be called when a specified keystroke will occur.
+
+ @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
+
+ @param KeyData A pointer to a buffer that is filled in with
+ the keystroke information 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 device state was set
+ appropriately.
+
+ @retval EFI_OUT_OF_RESOURCES Unable to allocate necessary
+ data structures.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_REGISTER_KEYSTROKE_NOTIFY)(
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ IN EFI_KEY_DATA *KeyData,
+ IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
+ OUT VOID **NotifyHandle
+);
+
+/**
+ The UnregisterKeystrokeNotify() function removes the
+ notification which was previously registered.
+
+ @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
+
+ @param NotificationHandle The handle of the notification
+ function being unregistered.
+
+ @retval EFI_SUCCESS The device state was set appropriately.
+
+ @retval EFI_INVALID_PARAMETER The NotificationHandle is
+ invalid.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_UNREGISTER_KEYSTROKE_NOTIFY)(
+ IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
+ IN VOID *NotificationHandle
+);
+
+
+///
+/// The EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL is used on the ConsoleIn
+/// device. It is an extension to the Simple Text Input protocol
+/// which allows a variety of extended shift state information to be
+/// returned.
+///
+struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL{
+ EFI_INPUT_RESET_EX Reset;
+ EFI_INPUT_READ_KEY_EX ReadKeyStrokeEx;
+ ///
+ /// Event to use with WaitForEvent() to wait for a key to be available.
+ ///
+ EFI_EVENT WaitForKeyEx;
+ EFI_SET_STATE SetState;
+ EFI_REGISTER_KEYSTROKE_NOTIFY RegisterKeyNotify;
+ EFI_UNREGISTER_KEYSTROKE_NOTIFY UnregisterKeyNotify;
+};
+
+
+extern EFI_GUID gEfiSimpleTextInputExProtocolGuid;
+
+#endif
+
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