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

EFI Specification extension on Media Device Path. MEDIA_FW_VOL_FILEPATH_DEVICE_PATH is adopted by UEFI later and added in UEFI2.10.

Browse Source 
In EdkCompatibility Package, we only support MEDIA_FW_VOL_FILEPATH_DEVICE_PATH that complies with EFI 1.10 and UEFI 2.10.


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6462 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qwang12
2008-11-11 22:42:28 +00:00
parent 766f4bc137
commit 6f4ee195af
4 changed files with 23 additions and 140 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
EdkCompatibilityPkg/Foundation/Library/Dxe/EfiDriverLib/DevicePath.c
View File

@@ -520,33 +520,16 @@ Returns:
--*/
{
#if (EFI_SPECIFICATION_VERSION != 0x00020000)
//
// Use old Device Path
// EFI Specification extension on Media Device Path. MEDIA_FW_VOL_FILEPATH_DEVICE_PATH is adopted by UEFI later and added in UEFI2.10.
// In EdkCompatibility Package, we only support MEDIA_FW_VOL_FILEPATH_DEVICE_PATH that complies with
// EFI 1.10 and UEFI 2.10.
//
FvDevicePathNode->Header.Type = MEDIA_DEVICE_PATH;
FvDevicePathNode->Header.SubType = MEDIA_FV_FILEPATH_DP;
SetDevicePathNodeLength (&FvDevicePathNode->Header, sizeof (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH));
#else
//
// Use the new Device path that does not conflict with the UEFI 2.0
//
FvDevicePathNode->Piwg.Header.Type = MEDIA_DEVICE_PATH;
FvDevicePathNode->Piwg.Header.SubType = MEDIA_VENDOR_DP;
SetDevicePathNodeLength (&FvDevicePathNode->Piwg.Header, sizeof (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH));
//
// Add the GUID for generic PIWG device paths
//
EfiCopyMem (&FvDevicePathNode->Piwg.PiwgSpecificDevicePath, &gEfiFrameworkDevicePathGuid, sizeof(EFI_GUID));
//
// Add in the FW Vol File Path PIWG defined inforation
//
FvDevicePathNode->Piwg.Type = PIWG_MEDIA_FW_VOL_FILEPATH_DEVICE_PATH_TYPE;
#endif
EfiCopyMem (&FvDevicePathNode->NameGuid, NameGuid, sizeof(EFI_GUID));
}
@@ -581,27 +564,15 @@ Returns:
--*/
{
#if (EFI_SPECIFICATION_VERSION != 0x00020000)
//
// Use old Device Path
// EFI Specification extension on Media Device Path. MEDIA_FW_VOL_FILEPATH_DEVICE_PATH is adopted by UEFI later and added in UEFI2.10.
// In EdkCompatibility Package, we only support MEDIA_FW_VOL_FILEPATH_DEVICE_PATH that complies with
// EFI 1.10 and UEFI 2.10.
//
if (DevicePathType (&FvDevicePathNode->Header) == MEDIA_DEVICE_PATH &&
DevicePathSubType (&FvDevicePathNode->Header) == MEDIA_FV_FILEPATH_DP) {
return &FvDevicePathNode->NameGuid;
}
#else
//
// Use the new Device path that does not conflict with the UEFI 2.0
//
if (DevicePathType (&FvDevicePathNode->Piwg.Header) == MEDIA_DEVICE_PATH &&
DevicePathSubType (&FvDevicePathNode->Piwg.Header) == MEDIA_VENDOR_DP) {
if (EfiCompareGuid (&gEfiFrameworkDevicePathGuid, &FvDevicePathNode->Piwg.PiwgSpecificDevicePath)) {
if (FvDevicePathNode->Piwg.Type == PIWG_MEDIA_FW_VOL_FILEPATH_DEVICE_PATH_TYPE) {
return &FvDevicePathNode->NameGuid;
}
}
}
#endif
return NULL;
}