1 files changed, 129 insertions, 0 deletions
diff --git a/StdLib/LibC/Uefi/InteractiveIO/IIOutilities.h b/StdLib/LibC/Uefi/InteractiveIO/IIOutilities.h
new file mode 100644
index 0000000000..778b612ea5
--- /dev/null
+++ b/StdLib/LibC/Uefi/InteractiveIO/IIOutilities.h
@@ -0,0 +1,129 @@
+/** @file
+  Utilities for Interactive I/O Functions.
+
+  The functions assume that isatty() is TRUE at the time they are called.
+
+  Copyright (c) 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 _IIO_UTILITIES_H
+#define _IIO_UTILITIES_H
+
+#include  <sys/EfiSysCall.h>
+
+__BEGIN_DECLS
+
+/** Get the low-level UEFI protocol associated with an open file.
+
+    @param[in]    fd    File descriptor for an open file.
+    @param[out]   filp  NULL, or a pointer to where a pointer to the file's
+                        file descriptor structure is to be stored.
+
+    @return   Returns NULL if fd is not a valid file descriptor, otherwise
+              a pointer to the file's associated UEFI protocol is returned.
+**/
+void *
+EFIAPI
+IIO_GetDeviceProto (
+  int                 fd,
+  struct __filedes  **filp    // Optional - filp == NULL if unused
+  );
+
+/** Get a character either from the input buffer or from hardware.
+
+    @param[in]    filp      Pointer to a file descriptor structure.
+    @param[in]    First     Set to TRUE to identify the initial read.
+
+    @return   Returns a character read from either the input buffer
+              or from the open file (device) identified by filp.
+              A return value of WEOF indicates an error has occurred.
+**/
+wint_t
+EFIAPI
+IIO_GetInChar (
+  struct __filedes *filp,
+  BOOLEAN           First
+  );
+
+/** Get the current cursor position.
+
+    @param[in]      fd      File descriptor for an open file.
+    @param[out]     Column  Pointer to where the current cursor column is to be stored.
+    @param[out]     Row     Pointer to where the current cursor row is to be stored.
+
+    @retval   -1    fd is not an IIO output device.
+    @retval    0    Cursor position retrieved, Cursor is Not Visible.
+    @retval    1    Cursor position retrieved, Cursor is Visible.
+**/
+int
+EFIAPI
+IIO_GetCursorPosition (
+  int       fd,
+  UINT32   *Column,
+  UINT32   *Row
+  );
+
+/** Set the cursor position.
+
+    @param[in]    filp    Pointer to the output device's file descriptor structure.
+    @param[in]    StartXY Pointer to a cursor coordinate (XY) structure indicating
+                          the desired coordinate to move the cursor to.
+
+    @retval   -1    fd is not an IIO output device
+    @retval    0    Cursor position set successfully.
+**/
+int
+EFIAPI
+IIO_SetCursorPosition (
+  struct __filedes *filp,
+  CURSOR_XY        *StartXY
+  );
+
+/** Get Output screen size and mode.
+
+    @param[in]    fd    File descriptor of the output device.
+    @param[out]   Col   Pointer to where to store the MAX Column, or NULL.
+    @param[out]   Row   Pointer to where to store the MAX Row, or NULL.
+
+    @retval   <0    An error occurred.  The reason is in errno and EFIerrno.
+                      * EIO     UEFI QueryMode failed
+                      * ENOTTY  fd does not refer to an interactive output device
+    @retval   >=0   Current output mode
+**/
+int
+EFIAPI
+IIO_GetOutputSize (
+  int       fd,
+  UINTN    *Col,
+  UINTN    *Row
+);
+
+/** Calculate the number of character positions between two X/Y coordinate pairs.
+
+    Using the current output device characteristics, calculate the number of
+    characters between two coordinates.
+
+    @param[in]      This      Pointer to the IIO instance to be examined.
+    @param[in]      StartXY   Pointer to the starting coordinate pair.
+    @param[in]      EndXY     Pointer to the ending coordinate pair.
+
+    @return   Returns the difference between the starting and ending coordinates.
+              The return value is positive if the coordinates contained in EndXY
+              are larger than StartXY, otherwise the return value is negative.
+**/
+int
+EFIAPI
+IIO_CursorDelta (
+  cIIO         *This,
+  CURSOR_XY    *StartXY,
+  CURSOR_XY    *EndXY
+  );
+
+__END_DECLS
+#endif  /* _IIO_UTILITIES_H */