MdePkg/Include/Protocol/SimpleTextIn.h

   1 /** @file
   2   Simple Text Input protocol from the UEFI 2.0 specification.
   3
   4   Abstraction of a very simple input device like a keyboard or serial
   5   terminal.
   6
   7   Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
   8   SPDX-License-Identifier: BSD-2-Clause-Patent
   9
  10 **/
  11
  12 #ifndef __SIMPLE_TEXT_IN_PROTOCOL_H__
  13 #define __SIMPLE_TEXT_IN_PROTOCOL_H__
  14
  15 #define EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID \
  16   { \
  17     0x387477c1, 0x69c7, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
  18   }
  19
  20 typedef struct _EFI_SIMPLE_TEXT_INPUT_PROTOCOL EFI_SIMPLE_TEXT_INPUT_PROTOCOL;
  21
  22 ///
  23 /// Protocol GUID name defined in EFI1.1.
  24 ///
  25 #define SIMPLE_INPUT_PROTOCOL  EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID
  26
  27 ///
  28 /// Protocol name in EFI1.1 for backward-compatible.
  29 ///
  30 typedef struct _EFI_SIMPLE_TEXT_INPUT_PROTOCOL SIMPLE_INPUT_INTERFACE;
  31
  32 ///
  33 /// The keystroke information for the key that was pressed.
  34 ///
  35 typedef struct {
  36   UINT16    ScanCode;
  37   CHAR16    UnicodeChar;
  38 } EFI_INPUT_KEY;
  39
  40 //
  41 // Required unicode control chars
  42 //
  43 #define CHAR_BACKSPACE        0x0008
  44 #define CHAR_TAB              0x0009
  45 #define CHAR_LINEFEED         0x000A
  46 #define CHAR_CARRIAGE_RETURN  0x000D
  47
  48 //
  49 // EFI Scan codes
  50 //
  51 #define SCAN_NULL       0x0000
  52 #define SCAN_UP         0x0001
  53 #define SCAN_DOWN       0x0002
  54 #define SCAN_RIGHT      0x0003
  55 #define SCAN_LEFT       0x0004
  56 #define SCAN_HOME       0x0005
  57 #define SCAN_END        0x0006
  58 #define SCAN_INSERT     0x0007
  59 #define SCAN_DELETE     0x0008
  60 #define SCAN_PAGE_UP    0x0009
  61 #define SCAN_PAGE_DOWN  0x000A
  62 #define SCAN_F1         0x000B
  63 #define SCAN_F2         0x000C
  64 #define SCAN_F3         0x000D
  65 #define SCAN_F4         0x000E
  66 #define SCAN_F5         0x000F
  67 #define SCAN_F6         0x0010
  68 #define SCAN_F7         0x0011
  69 #define SCAN_F8         0x0012
  70 #define SCAN_F9         0x0013
  71 #define SCAN_F10        0x0014
  72 #define SCAN_ESC        0x0017
  73
  74 /**
  75   Reset the input device and optionally run diagnostics
  76
  77   @param  This                 Protocol instance pointer.
  78   @param  ExtendedVerification Driver may perform diagnostics on reset.
  79
  80   @retval EFI_SUCCESS          The device was reset.
  81   @retval EFI_DEVICE_ERROR     The device is not functioning properly and could not be reset.
  82
  83 **/
  84 typedef
  85 EFI_STATUS
  86 (EFIAPI *EFI_INPUT_RESET)(
  87   IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL       *This,
  88   IN BOOLEAN                              ExtendedVerification
  89   );
  90
  91 /**
  92   Reads the next keystroke from the input device. The WaitForKey Event can
  93   be used to test for existence of a keystroke via WaitForEvent () call.
  94
  95   @param  This  Protocol instance pointer.
  96   @param  Key   A pointer to a buffer that is filled in with the keystroke
  97                 information for the key that was pressed.
  98
  99   @retval EFI_SUCCESS      The keystroke information was returned.
 100   @retval EFI_NOT_READY    There was no keystroke data available.
 101   @retval EFI_DEVICE_ERROR The keystroke information was not returned due to
 102                            hardware errors.
 103
 104 **/
 105 typedef
 106 EFI_STATUS
 107 (EFIAPI *EFI_INPUT_READ_KEY)(
 108   IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL       *This,
 109   OUT EFI_INPUT_KEY                       *Key
 110   );
 111
 112 ///
 113 /// The EFI_SIMPLE_TEXT_INPUT_PROTOCOL is used on the ConsoleIn device.
 114 /// It is the minimum required protocol for ConsoleIn.
 115 ///
 116 struct _EFI_SIMPLE_TEXT_INPUT_PROTOCOL {
 117   EFI_INPUT_RESET       Reset;
 118   EFI_INPUT_READ_KEY    ReadKeyStroke;
 119   ///
 120   /// Event to use with WaitForEvent() to wait for a key to be available
 121   ///
 122   EFI_EVENT             WaitForKey;
 123 };
 124
 125 extern EFI_GUID  gEfiSimpleTextInProtocolGuid;
 126
 127 #endif