Sync up ArmPkg with patch from mailing list. Changed name of BdsLib.h to BdsUnixLib...

[mirror_edk2.git] / ArmPkg / Library / BdsLib / BdsFilePathFs.c

diff --git a/ArmPkg/Library/BdsLib/BdsFilePathFs.c b/ArmPkg/Library/BdsLib/BdsFilePathFs.c
new file mode 100644 (file)
index 0000000..c928247
--- /dev/null
+++ b/ArmPkg/Library/BdsLib/BdsFilePathFs.c
@@ -0,0 +1,86 @@
+/** @file
+*
+*  Copyright (c) 2011, ARM Limited. All rights reserved.
+*  
+*  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 "BdsInternal.h"
+
+EFI_STATUS BdsLoadFileFromSimpleFileSystem(
+    IN  EFI_HANDLE Handle,
+    IN  CHAR16                              *FilePath,
+    OUT BDS_FILE            *File
+) {
+    EFI_SIMPLE_FILE_SYSTEM_PROTOCOL     *FsProtocol;
+    EFI_FILE_PROTOCOL                   *Fs;
+    EFI_STATUS Status;
+    EFI_FILE_PROTOCOL   *FileHandle = NULL;
+
+    if (File == NULL) {
+        return EFI_INVALID_PARAMETER;
+    }
+
+    Status = gBS->HandleProtocol(Handle,&gEfiSimpleFileSystemProtocolGuid, (VOID **)&FsProtocol);
+    if (EFI_ERROR(Status)) {
+        return Status;
+    }
+
+    //Try to Open the volume and get root directory
+       Status = FsProtocol->OpenVolume(FsProtocol, &Fs);
+       if (EFI_ERROR(Status)) {
+        return Status;
+    }
+
+    Status = Fs->Open(Fs, &FileHandle, FilePath, EFI_FILE_MODE_READ, 0);
+
+    File->Type = BDS_FILETYPE_FS;
+    File->FilePath = FilePath;
+    File->File.Fs.Handle = FileHandle;
+
+    return Status;
+}
+
+EFI_STATUS BdsCopyRawFileToRuntimeMemoryFS(
+    IN  EFI_FILE_PROTOCOL   *File,
+    OUT VOID                **FileImage,
+    OUT UINTN               *FileSize
+) {
+    EFI_FILE_INFO   *FileInfo;
+    UINTN           Size;
+    VOID*           Image;
+    EFI_STATUS      Status;
+
+    Size = 0;
+    File->GetInfo(File, &gEfiFileInfoGuid, &Size, NULL);
+    FileInfo = AllocatePool (Size);
+    Status = File->GetInfo(File, &gEfiFileInfoGuid, &Size, FileInfo);
+    if (EFI_ERROR(Status)) {
+        return Status;
+    }
+
+    // Get the file size
+    Size = FileInfo->FileSize;
+    if (FileSize) {
+        *FileSize = Size;
+    }
+    FreePool(FileInfo);
+
+    Image = AllocateRuntimePool(Size);
+    if (Image == NULL) {
+        return EFI_OUT_OF_RESOURCES;
+    }
+
+    Status = File->Read(File, &Size, Image);
+    if (!EFI_ERROR(Status)) {
+        *FileImage = Image;
+    }
+    return Status;
+}