ArmPkg: Moved ARMv7 specific files to a 'Arm' subdirectory

[mirror_edk2.git] / ArmPkg / Library / SemihostLib / SemihostLib.c

diff --git a/ArmPkg/Library/SemihostLib/SemihostLib.c b/ArmPkg/Library/SemihostLib/SemihostLib.c
new file mode 100644 (file)
index 0000000..01b6dc3
--- /dev/null
+++ b/ArmPkg/Library/SemihostLib/SemihostLib.c
@@ -0,0 +1,219 @@
+/** @file\r
+\r
+  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
+  \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
+#include <Base.h>\r
+\r
+#include <Library/BaseLib.h>\r
+#include <Library/SemihostLib.h>\r
+\r
+#include "SemihostPrivate.h"\r
+\r
+BOOLEAN\r
+SemihostConnectionSupported (\r
+  VOID\r
+  )\r
+{\r
+  return SEMIHOST_SUPPORTED;\r
+}\r
+\r
+RETURN_STATUS\r
+SemihostFileOpen (\r
+  IN  CHAR8  *FileName,\r
+  IN  UINT32 Mode,\r
+  OUT UINT32 *FileHandle\r
+  )\r
+{\r
+  SEMIHOST_FILE_OPEN_BLOCK  OpenBlock;\r
+  INT32                     Result;\r
+\r
+  if (FileHandle == NULL) {\r
+    return RETURN_INVALID_PARAMETER;\r
+  }\r
+\r
+  OpenBlock.FileName    = FileName;\r
+  OpenBlock.Mode        = Mode;\r
+  OpenBlock.NameLength  = AsciiStrLen(FileName);\r
+\r
+  Result = Semihost_SYS_OPEN(&OpenBlock);\r
+\r
+  if (Result == -1) {\r
+    return RETURN_NOT_FOUND;\r
+  } else {\r
+    *FileHandle = Result;\r
+    return RETURN_SUCCESS;\r
+  }\r
+}\r
+\r
+RETURN_STATUS\r
+SemihostFileSeek (\r
+  IN UINT32 FileHandle,\r
+  IN UINT32 Offset\r
+  )\r
+{\r
+  SEMIHOST_FILE_SEEK_BLOCK  SeekBlock;\r
+  INT32                     Result;\r
+\r
+  SeekBlock.Handle   = FileHandle;\r
+  SeekBlock.Location = Offset;\r
+\r
+  Result = Semihost_SYS_SEEK(&SeekBlock);\r
+\r
+  if (Result == 0) {\r
+    return RETURN_SUCCESS;\r
+  } else {\r
+    return RETURN_ABORTED;\r
+  }\r
+}\r
+\r
+RETURN_STATUS\r
+SemihostFileRead (\r
+  IN     UINT32 FileHandle,\r
+  IN OUT UINT32 *Length,\r
+  OUT    VOID   *Buffer\r
+  )\r
+{\r
+  SEMIHOST_FILE_READ_WRITE_BLOCK  ReadBlock;\r
+  UINT32                          Result;\r
+\r
+  if ((Length == NULL) || (Buffer == NULL)) {\r
+    return RETURN_INVALID_PARAMETER;\r
+  }\r
+\r
+  ReadBlock.Handle = FileHandle;\r
+  ReadBlock.Buffer = Buffer;\r
+  ReadBlock.Length = *Length;\r
+\r
+  Result = Semihost_SYS_READ(&ReadBlock);\r
+\r
+  if (Result == *Length) {\r
+    return RETURN_ABORTED;\r
+  } else {\r
+    *Length -= Result;\r
+    return RETURN_SUCCESS;\r
+  }\r
+}\r
+\r
+RETURN_STATUS\r
+SemihostFileWrite (\r
+  IN     UINT32 FileHandle,\r
+  IN OUT UINT32 *Length,\r
+  IN     VOID   *Buffer\r
+  )\r
+{\r
+  SEMIHOST_FILE_READ_WRITE_BLOCK  WriteBlock;\r
+\r
+  if ((Length == NULL) || (Buffer == NULL)) {\r
+    return RETURN_INVALID_PARAMETER;\r
+  }\r
+\r
+  WriteBlock.Handle = FileHandle;\r
+  WriteBlock.Buffer = Buffer;\r
+  WriteBlock.Length = *Length;\r
+\r
+  *Length = Semihost_SYS_WRITE(&WriteBlock);\r
+  \r
+  return RETURN_SUCCESS;\r
+}\r
+\r
+RETURN_STATUS\r
+SemihostFileClose (\r
+  IN UINT32 FileHandle\r
+  )\r
+{\r
+  INT32 Result = Semihost_SYS_CLOSE(&FileHandle);\r
+\r
+  if (Result == -1) {\r
+    return RETURN_INVALID_PARAMETER;\r
+  } else {\r
+    return RETURN_SUCCESS;\r
+  }\r
+}\r
+\r
+RETURN_STATUS\r
+SemihostFileLength (\r
+  IN  UINT32 FileHandle,\r
+  OUT UINT32 *Length\r
+  )\r
+{\r
+  INT32       Result;\r
+\r
+  if (Length == NULL) {\r
+    return RETURN_INVALID_PARAMETER;\r
+  }\r
+\r
+  Result = Semihost_SYS_FLEN(&FileHandle);\r
+\r
+  if (Result == -1) {\r
+    return RETURN_ABORTED;\r
+  } else {\r
+    *Length = Result;\r
+    return RETURN_SUCCESS;\r
+  }\r
+}\r
+\r
+RETURN_STATUS\r
+SemihostFileRemove (\r
+  IN CHAR8 *FileName\r
+  )\r
+{\r
+  SEMIHOST_FILE_REMOVE_BLOCK  RemoveBlock;\r
+  UINT32                      Result;\r
+\r
+  RemoveBlock.FileName    = FileName;\r
+  RemoveBlock.NameLength  = AsciiStrLen(FileName);\r
+\r
+  Result = Semihost_SYS_REMOVE(&RemoveBlock);\r
+\r
+  if (Result == 0) {\r
+    return RETURN_SUCCESS;\r
+  } else {\r
+    return RETURN_ABORTED;\r
+  }\r
+}\r
+\r
+CHAR8\r
+SemihostReadCharacter (\r
+  VOID\r
+  )\r
+{\r
+  return Semihost_SYS_READC();\r
+}\r
+\r
+VOID\r
+SemihostWriteCharacter (\r
+  IN CHAR8 Character\r
+  )\r
+{\r
+  Semihost_SYS_WRITEC(&Character);\r
+}\r
+\r
+VOID\r
+SemihostWriteString (\r
+  IN CHAR8 *String\r
+  )\r
+{\r
+  Semihost_SYS_WRITE0(String);\r
+}\r
+  \r
+UINT32\r
+SemihostSystem (\r
+  IN CHAR8 *CommandLine\r
+  )\r
+{\r
+  SEMIHOST_SYSTEM_BLOCK SystemBlock;\r
+\r
+  SystemBlock.CommandLine   = CommandLine;\r
+  SystemBlock.CommandLength = AsciiStrLen(CommandLine);\r
+\r
+  return Semihost_SYS_SYSTEM(&SystemBlock);\r
+}\r