1 files changed, 83 insertions, 0 deletions
diff --git a/ShellPkg/Library/UefiShellLevel1CommandsLib/Stall.c b/ShellPkg/Library/UefiShellLevel1CommandsLib/Stall.c
new file mode 100644
index 0000000000..2270323190
--- /dev/null
+++ b/ShellPkg/Library/UefiShellLevel1CommandsLib/Stall.c
@@ -0,0 +1,83 @@
+/** @file
+  Main file for stall shell level 1 function.
+
+  Copyright (c) 2011, 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.
+
+**/
+
+#include "UefiShellLevel1CommandsLib.h"
+
+/**
+  Function for 'stall' command.
+
+  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
+  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
+**/
+SHELL_STATUS
+EFIAPI
+ShellCommandRunStall (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  EFI_STATUS          Status;
+  LIST_ENTRY          *Package;
+  CHAR16              *ProblemParam;
+  SHELL_STATUS        ShellStatus;
+  UINT64              Intermediate;
+
+  ShellStatus         = SHELL_SUCCESS;
+
+  //
+  // initialize the shell lib (we must be in non-auto-init...)
+  //
+  Status = ShellInitialize();
+  ASSERT_EFI_ERROR(Status);
+
+  Status = CommandInit();
+  ASSERT_EFI_ERROR(Status);
+
+  //
+  // parse the command line
+  //
+  Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
+  if (EFI_ERROR(Status)) {
+    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
+      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel1HiiHandle, ProblemParam);
+      FreePool(ProblemParam);
+      ShellStatus = SHELL_INVALID_PARAMETER;
+    } else {
+      ASSERT(FALSE);
+    }
+  } else {
+    if (ShellCommandLineGetRawValue(Package, 2) != NULL) {
+      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel1HiiHandle);
+      ShellStatus = SHELL_INVALID_PARAMETER;
+    } else if (ShellCommandLineGetRawValue(Package, 1) == NULL) {
+      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel1HiiHandle);
+      ShellStatus = SHELL_INVALID_PARAMETER;
+    } else {
+      Status = ShellConvertStringToUint64(ShellCommandLineGetRawValue(Package, 1), &Intermediate, FALSE, FALSE);
+      if (EFI_ERROR(Status) || ((UINT64)(UINTN)(Intermediate)) != Intermediate) {
+        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM_VAL), gShellLevel1HiiHandle, ShellCommandLineGetRawValue(Package, 1));
+        ShellStatus = SHELL_INVALID_PARAMETER;
+      } else {
+        Status = gBS->Stall((UINTN)Intermediate);
+        if (EFI_ERROR(Status)) {
+          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_STALL_FAILED), gShellLevel1HiiHandle, Status);
+          ShellStatus = SHELL_DEVICE_ERROR;
+        }
+      }
+    }
+    ShellCommandLineFreeVarList (Package);
+  }
+  return (ShellStatus);
+}
+