1 files changed, 151 insertions, 0 deletions
diff --git a/ShellPkg/Library/UefiShellDebug1CommandsLib/Dblk.c b/ShellPkg/Library/UefiShellDebug1CommandsLib/Dblk.c
new file mode 100644
index 0000000000..96da304483
--- /dev/null
+++ b/ShellPkg/Library/UefiShellDebug1CommandsLib/Dblk.c
@@ -0,0 +1,151 @@
+/** @file
+  Main file for Dblk shell Debug1 function.
+
+  Copyright (c) 2005 - 2010, 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 "UefiShellDebug1CommandsLib.h"
+#include <Protocol/BlockIo.h>
+
+SHELL_STATUS
+EFIAPI
+DisplayTheBlocks(
+  IN CONST EFI_DEVICE_PATH_PROTOCOL *DevPath,
+  IN CONST UINT64                   Lba,
+  IN CONST UINT8                    BlockCount
+  )
+{
+  EFI_BLOCK_IO_PROTOCOL     *BlockIo;
+  EFI_DEVICE_PATH_PROTOCOL  *Copy;
+  EFI_HANDLE                BlockIoHandle;
+  EFI_STATUS                Status;
+  SHELL_STATUS              ShellStatus;
+  UINT8                     *Buffer;
+  UINTN                     BufferSize;
+
+  ShellStatus = SHELL_SUCCESS;
+  Copy = (EFI_DEVICE_PATH_PROTOCOL *)DevPath;
+
+  Status = gBS->LocateDevicePath(&gEfiBlockIoProtocolGuid, &Copy, &BlockIoHandle);
+  ASSERT_EFI_ERROR(Status);
+
+  Status = gBS->OpenProtocol(BlockIoHandle, &gEfiBlockIoProtocolGuid, (VOID**)&BlockIo, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);
+  ASSERT_EFI_ERROR(Status);
+
+  BufferSize = BlockIo->Media->BlockSize * BlockCount;
+  if (BufferSize > 0) {
+    Buffer     = AllocatePool(BufferSize);
+  } else {
+    Buffer    = NULL;
+  }
+
+  Status = BlockIo->ReadBlocks(BlockIo, BlockIo->Media->MediaId, Lba, BufferSize, Buffer);
+  if (!EFI_ERROR(Status) && Buffer != NULL) {
+    DumpHex(2,0,BufferSize,Buffer);
+  } else {
+    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_READ_FAIL), gShellDebug1HiiHandle, L"BlockIo", Status);
+    ShellStatus = SHELL_DEVICE_ERROR;
+  }
+
+  if (Buffer != NULL) {
+    FreePool(Buffer);
+  }
+
+  gBS->CloseProtocol(BlockIoHandle, &gEfiBlockIoProtocolGuid, gImageHandle, NULL);
+  return (ShellStatus);
+}
+
+SHELL_STATUS
+EFIAPI
+ShellCommandRunDblk (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  EFI_STATUS          Status;
+  LIST_ENTRY          *Package;
+  CHAR16              *ProblemParam;
+  SHELL_STATUS        ShellStatus;
+  CONST CHAR16        *BlockName;
+  CONST CHAR16        *LbaString;
+  CONST CHAR16        *BlockCountString;
+  UINT64              Lba;
+  UINT8               BlockCount;
+
+  ShellStatus         = SHELL_SUCCESS;
+  Status              = EFI_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), gShellDebug1HiiHandle, ProblemParam);
+      FreePool(ProblemParam);
+      ShellStatus = SHELL_INVALID_PARAMETER;
+    } else {
+      ASSERT(FALSE);
+    }
+  } else {
+    if (ShellCommandLineGetCount(Package) > 4) {
+      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
+      ShellStatus = SHELL_INVALID_PARAMETER;
+    } else if (ShellCommandLineGetCount(Package) < 2) {
+      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle);
+      ShellStatus = SHELL_INVALID_PARAMETER;
+    } else {
+      //
+      // Parse the params
+      //
+      BlockName         = ShellCommandLineGetRawValue(Package, 1);
+      LbaString         = ShellCommandLineGetRawValue(Package, 2);
+      BlockCountString  = ShellCommandLineGetRawValue(Package, 3);
+
+      if (LbaString == NULL) {
+        Lba = 0;
+      } else {
+        Lba = (UINT64)StrHexToUintn(LbaString);
+      }
+
+      if (BlockCountString == NULL) {
+        BlockCount = 1;
+      } else {
+        BlockCount = (UINT8)StrHexToUintn(BlockCountString);
+        if (BlockCount > 0x10) {
+          BlockCount = 0x10;
+        }
+      }
+
+      //
+      // do the work if we have a valid block identifier
+      //
+      if (mEfiShellProtocol->GetDevicePathFromMap(BlockName) == NULL) {
+        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, BlockName);
+        ShellStatus = SHELL_INVALID_PARAMETER;
+      } else {
+        ShellStatus = DisplayTheBlocks(mEfiShellProtocol->GetDevicePathFromMap(BlockName), Lba, BlockCount);
+      }
+    }
+
+    ShellCommandLineFreeVarList (Package);
+  }
+  return (ShellStatus);
+}