[mirror_edk2.git] / MdePkg / Include / Protocol / SimpleTextInEx.h

/** @file\r
  Simple Text Input Ex protocol from the UEFI 2.0 specification.\r
  \r
  This protocol defines an extension to the EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r
  which exposes much more state and modifier information from the input device,\r
  also allows one to register a notification for a particular keystroke.\r
\r
  Copyright (c) 2006 - 2011, 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 __SIMPLE_TEXT_IN_EX_H__\r
#define __SIMPLE_TEXT_IN_EX_H__\r
\r
#include <Protocol/SimpleTextIn.h>\r
\r
#define EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID \\r
  {0xdd9e7534, 0x7762, 0x4698, { 0x8c, 0x14, 0xf5, 0x85, 0x17, 0xa6, 0x25, 0xaa } }\r
\r
\r
typedef struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL;\r
\r
/**\r
  The Reset() function resets the input device hardware. As part\r
  of initialization process, the firmware/device will make a quick\r
  but reasonable attempt to verify that the device is functioning.\r
  If the ExtendedVerification flag is TRUE the firmware may take\r
  an extended amount of time to verify the device is operating on\r
  reset. Otherwise the reset operation is to occur as quickly as\r
  possible. The hardware verification process is not defined by\r
  this specification and is left up to the platform firmware or\r
  driver to implement.\r
\r
  @param This                 A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
\r
  @param ExtendedVerification Indicates that the driver may\r
                              perform a more exhaustive\r
                              verification operation of the\r
                              device during reset.\r
\r
\r
  @retval EFI_SUCCESS       The device was reset.\r
  \r
  @retval EFI_DEVICE_ERROR  The device is not functioning\r
                            correctly and could not be reset.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_INPUT_RESET_EX)(\r
  IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
  IN BOOLEAN                           ExtendedVerification\r
);\r
\r
\r
///\r
/// EFI_KEY_TOGGLE_STATE. The toggle states are defined.\r
/// They are: EFI_TOGGLE_STATE_VALID, EFI_SCROLL_LOCK_ACTIVE\r
/// EFI_NUM_LOCK_ACTIVE, EFI_CAPS_LOCK_ACTIVE\r
///\r
typedef UINT8 EFI_KEY_TOGGLE_STATE;\r
\r
typedef struct _EFI_KEY_STATE {\r
  ///\r
  /// Reflects the currently pressed shift\r
  /// modifiers for the input device. The\r
  /// returned value is valid only if the high\r
  /// order bit has been set.\r
  ///\r
  UINT32                KeyShiftState;\r
  ///\r
  /// Reflects the current internal state of\r
  /// various toggled attributes. The returned\r
  /// value is valid only if the high order\r
  /// bit has been set.\r
  ///\r
  EFI_KEY_TOGGLE_STATE  KeyToggleState;\r
} EFI_KEY_STATE;\r
\r
typedef struct {\r
  ///\r
  /// The EFI scan code and Unicode value returned from the input device.\r
  ///\r
  EFI_INPUT_KEY   Key;\r
  ///\r
  /// The current state of various toggled attributes as well as input modifier values.\r
  ///\r
  EFI_KEY_STATE   KeyState;\r
} EFI_KEY_DATA;\r
\r
//\r
// Any Shift or Toggle State that is valid should have\r
// high order bit set.\r
//\r
// Shift state\r
//\r
#define EFI_SHIFT_STATE_VALID     0x80000000\r
#define EFI_RIGHT_SHIFT_PRESSED   0x00000001\r
#define EFI_LEFT_SHIFT_PRESSED    0x00000002\r
#define EFI_RIGHT_CONTROL_PRESSED 0x00000004\r
#define EFI_LEFT_CONTROL_PRESSED  0x00000008\r
#define EFI_RIGHT_ALT_PRESSED     0x00000010\r
#define EFI_LEFT_ALT_PRESSED      0x00000020\r
#define EFI_RIGHT_LOGO_PRESSED    0x00000040\r
#define EFI_LEFT_LOGO_PRESSED     0x00000080\r
#define EFI_MENU_KEY_PRESSED      0x00000100\r
#define EFI_SYS_REQ_PRESSED       0x00000200\r
\r
//                            \r
// Toggle state               \r
//                            \r
#define EFI_TOGGLE_STATE_VALID    0x80\r
#define EFI_SCROLL_LOCK_ACTIVE    0x01\r
#define EFI_NUM_LOCK_ACTIVE       0x02\r
#define EFI_CAPS_LOCK_ACTIVE      0x04\r
                              \r
//                            \r
// EFI Scan codes             \r
//\r
#define SCAN_F11                  0x0015\r
#define SCAN_F12                  0x0016\r
#define SCAN_PAUSE                0x0048\r
#define SCAN_F13                  0x0068\r
#define SCAN_F14                  0x0069\r
#define SCAN_F15                  0x006A\r
#define SCAN_F16                  0x006B\r
#define SCAN_F17                  0x006C\r
#define SCAN_F18                  0x006D\r
#define SCAN_F19                  0x006E\r
#define SCAN_F20                  0x006F\r
#define SCAN_F21                  0x0070\r
#define SCAN_F22                  0x0071\r
#define SCAN_F23                  0x0072\r
#define SCAN_F24                  0x0073\r
#define SCAN_MUTE                 0x007F\r
#define SCAN_VOLUME_UP            0x0080\r
#define SCAN_VOLUME_DOWN          0x0081\r
#define SCAN_BRIGHTNESS_UP        0x0100\r
#define SCAN_BRIGHTNESS_DOWN      0x0101\r
#define SCAN_SUSPEND              0x0102\r
#define SCAN_HIBERNATE            0x0103\r
#define SCAN_TOGGLE_DISPLAY       0x0104\r
#define SCAN_RECOVERY             0x0105\r
#define SCAN_EJECT                0x0106\r
\r
/**\r
  The function reads the next keystroke from the input device. If\r
  there is no pending keystroke the function returns\r
  EFI_NOT_READY. If there is a pending keystroke, then\r
  KeyData.Key.ScanCode is the EFI scan code defined in Error!\r
  Reference source not found. The KeyData.Key.UnicodeChar is the\r
  actual printable character or is zero if the key does not\r
  represent a printable character (control key, function key,\r
  etc.). The KeyData.KeyState is shift state for the character\r
  reflected in KeyData.Key.UnicodeChar or KeyData.Key.ScanCode .\r
  When interpreting the data from this function, it should be\r
  noted that if a class of printable characters that are\r
  normally adjusted by shift modifiers (e.g. Shift Key + "f"\r
  key) would be presented solely as a KeyData.Key.UnicodeChar\r
  without the associated shift state. So in the previous example\r
  of a Shift Key + "f" key being pressed, the only pertinent\r
  data returned would be KeyData.Key.UnicodeChar with the value\r
  of "F". This of course would not typically be the case for\r
  non-printable characters such as the pressing of the Right\r
  Shift Key + F10 key since the corresponding returned data\r
  would be reflected both in the KeyData.KeyState.KeyShiftState\r
  and KeyData.Key.ScanCode values. UEFI drivers which implement\r
  the EFI_SIMPLE_TEXT_INPUT_EX protocol are required to return\r
  KeyData.Key and KeyData.KeyState values. These drivers must\r
  always return the most current state of\r
  KeyData.KeyState.KeyShiftState and\r
  KeyData.KeyState.KeyToggleState. It should also be noted that\r
  certain input devices may not be able to produce shift or toggle\r
  state information, and in those cases the high order bit in the\r
  respective Toggle and Shift state fields should not be active.\r
\r
  \r
  @param This     A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
\r
  @param KeyData  A pointer to a buffer that is filled in with\r
                  the keystroke state data for the key that was\r
                  pressed.\r
\r
  \r
  @retval EFI_SUCCESS     The keystroke information was\r
                          returned.\r
  \r
  @retval EFI_NOT_READY   There was no keystroke data available.\r
                          EFI_DEVICE_ERROR The keystroke\r
                          information was not returned due to\r
                          hardware errors.\r
\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_INPUT_READ_KEY_EX)(\r
  IN  EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
  OUT EFI_KEY_DATA                      *KeyData\r
);\r
\r
/**\r
  The SetState() function allows the input device hardware to\r
  have state settings adjusted.\r
  \r
  @param This           A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
  \r
  @param KeyToggleState Pointer to the EFI_KEY_TOGGLE_STATE to\r
                        set the state for the input device.\r
  \r
  \r
  @retval EFI_SUCCESS       The device state was set appropriately.\r
\r
  @retval EFI_DEVICE_ERROR  The device is not functioning\r
                            correctly and could not have the\r
                            setting adjusted.\r
\r
  @retval EFI_UNSUPPORTED   The device does not support the\r
                            ability to have its state set.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_SET_STATE)(\r
  IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
  IN EFI_KEY_TOGGLE_STATE              *KeyToggleState\r
);\r
\r
///\r
/// The function will be called when the key sequence is typed specified by KeyData.\r
///\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_KEY_NOTIFY_FUNCTION)(\r
  IN EFI_KEY_DATA *KeyData\r
);\r
\r
/**\r
  The RegisterKeystrokeNotify() function registers a function\r
  which will be called when a specified keystroke will occur.\r
  \r
  @param This                     A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
  \r
  @param KeyData                  A pointer to a buffer that is filled in with\r
                                  the keystroke information for the key that was\r
                                  pressed.\r
  \r
  @param KeyNotificationFunction  Points to the function to be\r
                                  called when the key sequence\r
                                  is typed specified by KeyData.\r
  \r
  \r
  @param NotifyHandle             Points to the unique handle assigned to\r
                                  the registered notification.\r
  \r
  @retval EFI_SUCCESS           The device state was set\r
                                appropriately.\r
\r
  @retval EFI_OUT_OF_RESOURCES  Unable to allocate necessary\r
                                data structures.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_REGISTER_KEYSTROKE_NOTIFY)(\r
  IN  EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
  IN  EFI_KEY_DATA                      *KeyData,\r
  IN  EFI_KEY_NOTIFY_FUNCTION           KeyNotificationFunction,\r
  OUT EFI_HANDLE                        *NotifyHandle\r
);\r
\r
/**\r
  The UnregisterKeystrokeNotify() function removes the\r
  notification which was previously registered.\r
  \r
  @param This               A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
  \r
  @param NotificationHandle The handle of the notification\r
                            function being unregistered.\r
  \r
  @retval EFI_SUCCESS The device state was set appropriately.\r
  \r
  @retval EFI_INVALID_PARAMETER The NotificationHandle is\r
                                invalid.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_UNREGISTER_KEYSTROKE_NOTIFY)(\r
  IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL  *This,\r
  IN EFI_HANDLE                         NotificationHandle\r
);\r
\r
\r
///\r
/// The EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL is used on the ConsoleIn\r
/// device. It is an extension to the Simple Text Input protocol\r
/// which allows a variety of extended shift state information to be\r
/// returned.\r
///\r
struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL{\r
  EFI_INPUT_RESET_EX              Reset;\r
  EFI_INPUT_READ_KEY_EX           ReadKeyStrokeEx;\r
  ///\r
  /// Event to use with WaitForEvent() to wait for a key to be available.\r
  ///\r
  EFI_EVENT                       WaitForKeyEx;\r
  EFI_SET_STATE                   SetState;\r
  EFI_REGISTER_KEYSTROKE_NOTIFY   RegisterKeyNotify;\r
  EFI_UNREGISTER_KEYSTROKE_NOTIFY UnregisterKeyNotify;\r
};\r
\r
\r
extern EFI_GUID gEfiSimpleTextInputExProtocolGuid;\r
\r
#endif\r
\r
Commit	Line	Data
	1	/** @file\r
	2	Simple Text Input Ex protocol from the UEFI 2.0 specification.\r
	3	\r
	4	This protocol defines an extension to the EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r
	5	which exposes much more state and modifier information from the input device,\r
	6	also allows one to register a notification for a particular keystroke.\r
	7	\r
	8	Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
	9	This program and the accompanying materials \r
	10	are licensed and made available under the terms and conditions of the BSD License \r
	11	which accompanies this distribution. The full text of the license may be found at \r
	12	http://opensource.org/licenses/bsd-license.php \r
	13	\r
	14	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	15	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	16	\r
	17	**/\r
	18	\r
	19	#ifndef __SIMPLE_TEXT_IN_EX_H__\r
	20	#define __SIMPLE_TEXT_IN_EX_H__\r
	21	\r
	22	#include <Protocol/SimpleTextIn.h>\r
	23	\r
	24	#define EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID \\r
	25	{0xdd9e7534, 0x7762, 0x4698, { 0x8c, 0x14, 0xf5, 0x85, 0x17, 0xa6, 0x25, 0xaa } }\r
	26	\r
	27	\r
	28	typedef struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL;\r
	29	\r
	30	/**\r
	31	The Reset() function resets the input device hardware. As part\r
	32	of initialization process, the firmware/device will make a quick\r
	33	but reasonable attempt to verify that the device is functioning.\r
	34	If the ExtendedVerification flag is TRUE the firmware may take\r
	35	an extended amount of time to verify the device is operating on\r
	36	reset. Otherwise the reset operation is to occur as quickly as\r
	37	possible. The hardware verification process is not defined by\r
	38	this specification and is left up to the platform firmware or\r
	39	driver to implement.\r
	40	\r
	41	@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
	42	\r
	43	@param ExtendedVerification Indicates that the driver may\r
	44	perform a more exhaustive\r
	45	verification operation of the\r
	46	device during reset.\r
	47	\r
	48	\r
	49	@retval EFI_SUCCESS The device was reset.\r
	50	\r
	51	@retval EFI_DEVICE_ERROR The device is not functioning\r
	52	correctly and could not be reset.\r
	53	\r
	54	**/\r
	55	typedef\r
	56	EFI_STATUS\r
	57	(EFIAPI *EFI_INPUT_RESET_EX)(\r
	58	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
	59	IN BOOLEAN ExtendedVerification\r
	60	);\r
	61	\r
	62	\r
	63	///\r
	64	/// EFI_KEY_TOGGLE_STATE. The toggle states are defined.\r
	65	/// They are: EFI_TOGGLE_STATE_VALID, EFI_SCROLL_LOCK_ACTIVE\r
	66	/// EFI_NUM_LOCK_ACTIVE, EFI_CAPS_LOCK_ACTIVE\r
	67	///\r
	68	typedef UINT8 EFI_KEY_TOGGLE_STATE;\r
	69	\r
	70	typedef struct _EFI_KEY_STATE {\r
	71	///\r
	72	/// Reflects the currently pressed shift\r
	73	/// modifiers for the input device. The\r
	74	/// returned value is valid only if the high\r
	75	/// order bit has been set.\r
	76	///\r
	77	UINT32 KeyShiftState;\r
	78	///\r
	79	/// Reflects the current internal state of\r
	80	/// various toggled attributes. The returned\r
	81	/// value is valid only if the high order\r
	82	/// bit has been set.\r
	83	///\r
	84	EFI_KEY_TOGGLE_STATE KeyToggleState;\r
	85	} EFI_KEY_STATE;\r
	86	\r
	87	typedef struct {\r
	88	///\r
	89	/// The EFI scan code and Unicode value returned from the input device.\r
	90	///\r
	91	EFI_INPUT_KEY Key;\r
	92	///\r
	93	/// The current state of various toggled attributes as well as input modifier values.\r
	94	///\r
	95	EFI_KEY_STATE KeyState;\r
	96	} EFI_KEY_DATA;\r
	97	\r
	98	//\r
	99	// Any Shift or Toggle State that is valid should have\r
	100	// high order bit set.\r
	101	//\r
	102	// Shift state\r
	103	//\r
	104	#define EFI_SHIFT_STATE_VALID 0x80000000\r
	105	#define EFI_RIGHT_SHIFT_PRESSED 0x00000001\r
	106	#define EFI_LEFT_SHIFT_PRESSED 0x00000002\r
	107	#define EFI_RIGHT_CONTROL_PRESSED 0x00000004\r
	108	#define EFI_LEFT_CONTROL_PRESSED 0x00000008\r
	109	#define EFI_RIGHT_ALT_PRESSED 0x00000010\r
	110	#define EFI_LEFT_ALT_PRESSED 0x00000020\r
	111	#define EFI_RIGHT_LOGO_PRESSED 0x00000040\r
	112	#define EFI_LEFT_LOGO_PRESSED 0x00000080\r
	113	#define EFI_MENU_KEY_PRESSED 0x00000100\r
	114	#define EFI_SYS_REQ_PRESSED 0x00000200\r
	115	\r
	116	// \r
	117	// Toggle state \r
	118	// \r
	119	#define EFI_TOGGLE_STATE_VALID 0x80\r
	120	#define EFI_SCROLL_LOCK_ACTIVE 0x01\r
	121	#define EFI_NUM_LOCK_ACTIVE 0x02\r
	122	#define EFI_CAPS_LOCK_ACTIVE 0x04\r
	123	\r
	124	// \r
	125	// EFI Scan codes \r
	126	//\r
	127	#define SCAN_F11 0x0015\r
	128	#define SCAN_F12 0x0016\r
	129	#define SCAN_PAUSE 0x0048\r
	130	#define SCAN_F13 0x0068\r
	131	#define SCAN_F14 0x0069\r
	132	#define SCAN_F15 0x006A\r
	133	#define SCAN_F16 0x006B\r
	134	#define SCAN_F17 0x006C\r
	135	#define SCAN_F18 0x006D\r
	136	#define SCAN_F19 0x006E\r
	137	#define SCAN_F20 0x006F\r
	138	#define SCAN_F21 0x0070\r
	139	#define SCAN_F22 0x0071\r
	140	#define SCAN_F23 0x0072\r
	141	#define SCAN_F24 0x0073\r
	142	#define SCAN_MUTE 0x007F\r
	143	#define SCAN_VOLUME_UP 0x0080\r
	144	#define SCAN_VOLUME_DOWN 0x0081\r
	145	#define SCAN_BRIGHTNESS_UP 0x0100\r
	146	#define SCAN_BRIGHTNESS_DOWN 0x0101\r
	147	#define SCAN_SUSPEND 0x0102\r
	148	#define SCAN_HIBERNATE 0x0103\r
	149	#define SCAN_TOGGLE_DISPLAY 0x0104\r
	150	#define SCAN_RECOVERY 0x0105\r
	151	#define SCAN_EJECT 0x0106\r
	152	\r
	153	/**\r
	154	The function reads the next keystroke from the input device. If\r
	155	there is no pending keystroke the function returns\r
	156	EFI_NOT_READY. If there is a pending keystroke, then\r
	157	KeyData.Key.ScanCode is the EFI scan code defined in Error!\r
	158	Reference source not found. The KeyData.Key.UnicodeChar is the\r
	159	actual printable character or is zero if the key does not\r
	160	represent a printable character (control key, function key,\r
	161	etc.). The KeyData.KeyState is shift state for the character\r
	162	reflected in KeyData.Key.UnicodeChar or KeyData.Key.ScanCode .\r
	163	When interpreting the data from this function, it should be\r
	164	noted that if a class of printable characters that are\r
	165	normally adjusted by shift modifiers (e.g. Shift Key + "f"\r
	166	key) would be presented solely as a KeyData.Key.UnicodeChar\r
	167	without the associated shift state. So in the previous example\r
	168	of a Shift Key + "f" key being pressed, the only pertinent\r
	169	data returned would be KeyData.Key.UnicodeChar with the value\r
	170	of "F". This of course would not typically be the case for\r
	171	non-printable characters such as the pressing of the Right\r
	172	Shift Key + F10 key since the corresponding returned data\r
	173	would be reflected both in the KeyData.KeyState.KeyShiftState\r
	174	and KeyData.Key.ScanCode values. UEFI drivers which implement\r
	175	the EFI_SIMPLE_TEXT_INPUT_EX protocol are required to return\r
	176	KeyData.Key and KeyData.KeyState values. These drivers must\r
	177	always return the most current state of\r
	178	KeyData.KeyState.KeyShiftState and\r
	179	KeyData.KeyState.KeyToggleState. It should also be noted that\r
	180	certain input devices may not be able to produce shift or toggle\r
	181	state information, and in those cases the high order bit in the\r
	182	respective Toggle and Shift state fields should not be active.\r
	183	\r
	184	\r
	185	@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
	186	\r
	187	@param KeyData A pointer to a buffer that is filled in with\r
	188	the keystroke state data for the key that was\r
	189	pressed.\r
	190	\r
	191	\r
	192	@retval EFI_SUCCESS The keystroke information was\r
	193	returned.\r
	194	\r
	195	@retval EFI_NOT_READY There was no keystroke data available.\r
	196	EFI_DEVICE_ERROR The keystroke\r
	197	information was not returned due to\r
	198	hardware errors.\r
	199	\r
	200	\r
	201	**/\r
	202	typedef\r
	203	EFI_STATUS\r
	204	(EFIAPI *EFI_INPUT_READ_KEY_EX)(\r
	205	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
	206	OUT EFI_KEY_DATA *KeyData\r
	207	);\r
	208	\r
	209	/**\r
	210	The SetState() function allows the input device hardware to\r
	211	have state settings adjusted.\r
	212	\r
	213	@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
	214	\r
	215	@param KeyToggleState Pointer to the EFI_KEY_TOGGLE_STATE to\r
	216	set the state for the input device.\r
	217	\r
	218	\r
	219	@retval EFI_SUCCESS The device state was set appropriately.\r
	220	\r
	221	@retval EFI_DEVICE_ERROR The device is not functioning\r
	222	correctly and could not have the\r
	223	setting adjusted.\r
	224	\r
	225	@retval EFI_UNSUPPORTED The device does not support the\r
	226	ability to have its state set.\r
	227	\r
	228	**/\r
	229	typedef\r
	230	EFI_STATUS\r
	231	(EFIAPI *EFI_SET_STATE)(\r
	232	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
	233	IN EFI_KEY_TOGGLE_STATE *KeyToggleState\r
	234	);\r
	235	\r
	236	///\r
	237	/// The function will be called when the key sequence is typed specified by KeyData.\r
	238	///\r
	239	typedef\r
	240	EFI_STATUS\r
	241	(EFIAPI *EFI_KEY_NOTIFY_FUNCTION)(\r
	242	IN EFI_KEY_DATA *KeyData\r
	243	);\r
	244	\r
	245	/**\r
	246	The RegisterKeystrokeNotify() function registers a function\r
	247	which will be called when a specified keystroke will occur.\r
	248	\r
	249	@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
	250	\r
	251	@param KeyData A pointer to a buffer that is filled in with\r
	252	the keystroke information for the key that was\r
	253	pressed.\r
	254	\r
	255	@param KeyNotificationFunction Points to the function to be\r
	256	called when the key sequence\r
	257	is typed specified by KeyData.\r
	258	\r
	259	\r
	260	@param NotifyHandle Points to the unique handle assigned to\r
	261	the registered notification.\r
	262	\r
	263	@retval EFI_SUCCESS The device state was set\r
	264	appropriately.\r
	265	\r
	266	@retval EFI_OUT_OF_RESOURCES Unable to allocate necessary\r
	267	data structures.\r
	268	\r
	269	**/\r
	270	typedef\r
	271	EFI_STATUS\r
	272	(EFIAPI *EFI_REGISTER_KEYSTROKE_NOTIFY)(\r
	273	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
	274	IN EFI_KEY_DATA *KeyData,\r
	275	IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,\r
	276	OUT EFI_HANDLE *NotifyHandle\r
	277	);\r
	278	\r
	279	/**\r
	280	The UnregisterKeystrokeNotify() function removes the\r
	281	notification which was previously registered.\r
	282	\r
	283	@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
	284	\r
	285	@param NotificationHandle The handle of the notification\r
	286	function being unregistered.\r
	287	\r
	288	@retval EFI_SUCCESS The device state was set appropriately.\r
	289	\r
	290	@retval EFI_INVALID_PARAMETER The NotificationHandle is\r
	291	invalid.\r
	292	\r
	293	**/\r
	294	typedef\r
	295	EFI_STATUS\r
	296	(EFIAPI *EFI_UNREGISTER_KEYSTROKE_NOTIFY)(\r
	297	IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
	298	IN EFI_HANDLE NotificationHandle\r
	299	);\r
	300	\r
	301	\r
	302	///\r
	303	/// The EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL is used on the ConsoleIn\r
	304	/// device. It is an extension to the Simple Text Input protocol\r
	305	/// which allows a variety of extended shift state information to be\r
	306	/// returned.\r
	307	///\r
	308	struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL{\r
	309	EFI_INPUT_RESET_EX Reset;\r
	310	EFI_INPUT_READ_KEY_EX ReadKeyStrokeEx;\r
	311	///\r
	312	/// Event to use with WaitForEvent() to wait for a key to be available.\r
	313	///\r
	314	EFI_EVENT WaitForKeyEx;\r
	315	EFI_SET_STATE SetState;\r
	316	EFI_REGISTER_KEYSTROKE_NOTIFY RegisterKeyNotify;\r
	317	EFI_UNREGISTER_KEYSTROKE_NOTIFY UnregisterKeyNotify;\r
	318	};\r
	319	\r
	320	\r
	321	extern EFI_GUID gEfiSimpleTextInputExProtocolGuid;\r
	322	\r
	323	#endif\r
	324	\r