StdLibPrivateInternalFiles/Include/Device/Console.h

   1 /** @file
   2   Declarations and macros for the console abstraction.
   3
   4   Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials are licensed and made available
   6   under the terms and conditions of the BSD License which accompanies this
   7   distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php.
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13   Depends on <kfile.h>, <Device/Device.h>, <Protocol/SimpleTextIn.h>, <Uefi/UefiBaseType.h>
  14 **/
  15 #ifndef _DEVICE_UEFI_CONSOLE_H
  16 #define _DEVICE_UEFI_CONSOLE_H
  17
  18 #include  <kfile.h>
  19 #include  <Device/Device.h>
  20
  21 /*  The members Cookie through Abstraction, inclusive, are the same type and order
  22     for all instance structures.
  23
  24     All instance structures must be a multiple of sizeof(UINTN) bytes long
  25 */
  26 typedef struct {
  27   UINT32                      Cookie;       ///< Special value identifying this as a valid ConInstance
  28   UINT32                      InstanceNum;  ///< Which instance is this?  Zero-based.
  29   EFI_HANDLE                  Dev;          ///< Pointer to either Input or Output Protocol.
  30   DeviceNode                 *Parent;       ///< Points to the parent Device Node.
  31   struct fileops              Abstraction;  ///< Pointers to functions implementing this device's abstraction.
  32   UINTN                       Reserved_1;   // Ensure that next member starts on an 8-byte boundary
  33   UINT64                      NumRead;      ///< Number of characters Read.
  34   UINT64                      NumWritten;   ///< Number of characters Written.
  35   EFI_INPUT_KEY               UnGetKey;     ///< One-key pushback, for poll().
  36   __mbstate_t                 CharState;    ///< Character state for the byte stream passing through this device
  37 } ConInstance;
  38
  39 __BEGIN_DECLS
  40
  41 int
  42 EFIAPI
  43 da_ConOpen(
  44   IN  DeviceNode         *DevNode,
  45   IN  struct __filedes   *filp,
  46   IN  int                 DevInstance,
  47   IN  CHAR16             *Path,
  48   IN  CHAR16             *MPath
  49 );
  50
  51 __END_DECLS
  52
  53 #endif  /* _DEVICE_UEFI_CONSOLE_H */