upload android base code part6

android/device/linaro/bootloader/edk2/EmbeddedPkg/Ebl/Script.c

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+/** @file
+  Script command allows the execution of commands from a text file
+
+  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+  Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+  (C) Copyright 2015 Hewlett Packard Enterprise Development LP<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.
+
+  Module Name:  EfiDevice.c
+
+**/
+
+#include "Ebl.h"
+
+
+/**
+  Execute the passed in file like a series of commands. The ; can be used on
+  a single line to indicate multiple commands per line. The Ascii text file
+  can contain any number of lines. The following line termination forms are
+  supported:
+    LF   : Unix, Mac OS X*, BeOS
+    CR+LF: MS-DOS*, Microsoft Windows*
+    CR   : Commodore, Apple II, and really Mac OS
+    LF+CR: for simplicity and completeness
+
+  Argv[0] - "script"
+  Argv[1] - Device Name:path for the file to load
+
+  script fv1:\script.txt
+
+  @param  Argc   Number of command arguments in Argv
+  @param  Argv   Array of strings that represent the parsed command line.
+                 Argv[0] is the command name
+
+  @return EFI_SUCCESS
+
+**/
+EFI_STATUS
+EFIAPI
+EblScriptCmd (
+  IN UINTN  Argc,
+  IN CHAR8  **Argv
+  )
+{
+  EFI_STATUS                    Status;
+  EFI_OPEN_FILE                 *File;
+  VOID                          *Address;
+  UINTN                         Size;
+  CHAR8                         *Ptr;
+  CHAR8                         *ScanPtr;
+  UINTN                         CmdLineSize;
+
+
+
+  if (Argc < 2) {
+    // file name required
+    return EFI_SUCCESS;
+  }
+
+  File = EfiOpen (Argv[1], EFI_FILE_MODE_READ, 0);
+  if (File == NULL) {
+    AsciiPrint ("  %a is not a valid path\n", Argv[1]);
+    return EFI_SUCCESS;
+  }
+
+  Status = EfiReadAllocatePool (File, &Address, &Size);
+  if (!EFI_ERROR (Status)) {
+    // Loop through each line in the text file
+    for (Ptr = (CHAR8 *)Address; (Ptr < (((CHAR8 *)Address) + Size)) && !EFI_ERROR (Status); Ptr += CmdLineSize) {
+      for (CmdLineSize = 0, ScanPtr = Ptr; ; CmdLineSize++, ScanPtr++) {
+        // look for the end of the line
+        if ((*ScanPtr == EBL_CR) || (*ScanPtr == EBL_LF)) {
+          // convert to NULL as this is what input routine would do
+          *ScanPtr = 0;
+          if ((*(ScanPtr + 1) == EBL_CR) || (*(ScanPtr + 1) == EBL_LF)) {
+            // if its a set get the 2nd EOL char
+            CmdLineSize++;
+            *(ScanPtr + 1) = 0;
+          }
+          CmdLineSize++;
+          break;
+        }
+
+      }
+
+      Status = ProcessCmdLine (Ptr, CmdLineSize);
+    }
+
+    FreePool (Address);
+  }
+
+  EfiClose (File);
+  return Status;
+}
+
+
+
+GLOBAL_REMOVE_IF_UNREFERENCED const EBL_COMMAND_TABLE mScriptTemplate[] = {
+  {
+    "script",
+    " device:path; load an ascii file and execute it like commands",
+    NULL,
+    EblScriptCmd
+  }
+};
+
+
+/**
+  Initialize the commands in this in this file
+**/
+
+VOID
+EblInitializeScriptCmd (
+  VOID
+  )
+{
+  if (FeaturePcdGet (PcdEmbeddedScriptCmd)) {
+    EblAddCommands (mScriptTemplate, sizeof (mScriptTemplate)/sizeof (EBL_COMMAND_TABLE));
+  }
+}
+