sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

1, Add <Library/DevicePathLib.h> for all source that use device path utility macros

Browse Source 
2, Add DevicePathLib library class to module's INF that use device path utility macros

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6456 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
2008-11-11 15:42:40 +00:00
parent e5dab01618
commit 1232b21473
21 changed files with 61 additions and 295 deletions
Download Patch File Download Diff File Expand all files Collapse all files

75
MdeModulePkg/Library/GenericBdsLib/DevicePath.c
View File

@ -112,75 +112,6 @@ CatPrint (
return Str->str;
}
/**
Function unpacks a device path data structure so that all the nodes
of a device path are naturally aligned.
@param DevPath A pointer to a device path data structure
@return A ponter to new device If the memory for the device path is successfully allocated, then a
pointer to the new device path is returned. Otherwise, NULL is returned.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
BdsLibUnpackDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *DevPath
)
{
EFI_DEVICE_PATH_PROTOCOL *Src;
EFI_DEVICE_PATH_PROTOCOL *Dest;
EFI_DEVICE_PATH_PROTOCOL *NewPath;
UINTN Size;
//
// Walk device path and round sizes to valid boundries
//
Src = DevPath;
Size = 0;
for (;;) {
Size += DevicePathNodeLength (Src);
Size += ALIGN_SIZE (Size);
if (IsDevicePathEnd (Src)) {
break;
}
Src = NextDevicePathNode (Src);
}
//
// Allocate space for the unpacked path
//
NewPath = AllocateZeroPool (Size);
if (NewPath != NULL) {
ASSERT (((UINTN) NewPath) % MIN_ALIGNMENT_SIZE == 0);
//
// Copy each node
//
Src = DevPath;
Dest = NewPath;
for (;;) {
Size = DevicePathNodeLength (Src);
CopyMem (Dest, Src, Size);
Size += ALIGN_SIZE (Size);
SetDevicePathNodeLength (Dest, Size);
Dest->Type |= EFI_DP_TYPE_UNPACKED;
Dest = (EFI_DEVICE_PATH_PROTOCOL *) (((UINT8 *) Dest) + Size);
if (IsDevicePathEnd (Src)) {
break;
}
Src = NextDevicePathNode (Src);
}
}
return NewPath;
}
/**
Convert Device Path to a Unicode string for printing.
@ -1545,12 +1476,6 @@ DevicePathToStr (
return ToText;
}
//
// Unpacked the device path
//
DevPath = BdsLibUnpackDevicePath (DevPath);
ASSERT (DevPath);
//
// Process each device path node
//