diff options
Diffstat (limited to 'ArmPlatformPkg/Bds')
| -rw-r--r-- | ArmPlatformPkg/Bds/Bds.inf | 150 | ||||
| -rw-r--r-- | ArmPlatformPkg/Bds/BdsHelper.c | 634 |
2 files changed, 392 insertions, 392 deletions
diff --git a/ArmPlatformPkg/Bds/Bds.inf b/ArmPlatformPkg/Bds/Bds.inf index 164e2ae526..5027041211 100644 --- a/ArmPlatformPkg/Bds/Bds.inf +++ b/ArmPlatformPkg/Bds/Bds.inf @@ -1,75 +1,75 @@ -#/** @file -# -# Component description file for Bds module -# -# Copyright (c) 2011-2012, ARM Ltd. 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. -# -#**/ - - -[Defines] - INF_VERSION = 0x00010005 - BASE_NAME = ArmPlatformBds - FILE_GUID = 5a50aa81-c3ae-4608-a0e3-41a2e69baf94 - MODULE_TYPE = DXE_DRIVER - VERSION_STRING = 1.0 - - ENTRY_POINT = BdsInitialize - -[Sources.common] - Bds.c - BdsHelper.c - BootMenu.c - BootOption.c - BootOptionSupport.c - -[Packages] - MdePkg/MdePkg.dec - MdeModulePkg/MdeModulePkg.dec - ArmPkg/ArmPkg.dec - ArmPlatformPkg/ArmPlatformPkg.dec - -[LibraryClasses] - BdsLib - TimerLib - PerformanceLib - UefiBootServicesTableLib - DxeServicesTableLib - UefiDriverEntryPoint - DebugLib - PrintLib - BaseLib - -[Guids] - gEfiFileSystemInfoGuid - -[Protocols] - gEfiBdsArchProtocolGuid - gEfiBlockIoProtocolGuid - gEfiSimpleTextInProtocolGuid - gEfiPxeBaseCodeProtocolGuid - gEfiSimpleNetworkProtocolGuid - gEfiDevicePathToTextProtocolGuid - -[Pcd] - gArmPlatformTokenSpaceGuid.PcdFirmwareVendor - gArmPlatformTokenSpaceGuid.PcdDefaultBootDescription - gArmPlatformTokenSpaceGuid.PcdDefaultBootDevicePath - gArmPlatformTokenSpaceGuid.PcdDefaultBootInitrdPath - gArmPlatformTokenSpaceGuid.PcdDefaultBootArgument - gArmPlatformTokenSpaceGuid.PcdDefaultBootType - gArmPlatformTokenSpaceGuid.PcdFdtDevicePath - gArmPlatformTokenSpaceGuid.PcdPlatformBootTimeOut - gArmPlatformTokenSpaceGuid.PcdDefaultConInPaths - gArmPlatformTokenSpaceGuid.PcdDefaultConOutPaths - -[Depex] - TRUE +#/** @file
+#
+# Component description file for Bds module
+#
+# Copyright (c) 2011-2012, ARM Ltd. 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.
+#
+#**/
+
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = ArmPlatformBds
+ FILE_GUID = 5a50aa81-c3ae-4608-a0e3-41a2e69baf94
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+
+ ENTRY_POINT = BdsInitialize
+
+[Sources.common]
+ Bds.c
+ BdsHelper.c
+ BootMenu.c
+ BootOption.c
+ BootOptionSupport.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ ArmPkg/ArmPkg.dec
+ ArmPlatformPkg/ArmPlatformPkg.dec
+
+[LibraryClasses]
+ BdsLib
+ TimerLib
+ PerformanceLib
+ UefiBootServicesTableLib
+ DxeServicesTableLib
+ UefiDriverEntryPoint
+ DebugLib
+ PrintLib
+ BaseLib
+
+[Guids]
+ gEfiFileSystemInfoGuid
+
+[Protocols]
+ gEfiBdsArchProtocolGuid
+ gEfiBlockIoProtocolGuid
+ gEfiSimpleTextInProtocolGuid
+ gEfiPxeBaseCodeProtocolGuid
+ gEfiSimpleNetworkProtocolGuid
+ gEfiDevicePathToTextProtocolGuid
+
+[Pcd]
+ gArmPlatformTokenSpaceGuid.PcdFirmwareVendor
+ gArmPlatformTokenSpaceGuid.PcdDefaultBootDescription
+ gArmPlatformTokenSpaceGuid.PcdDefaultBootDevicePath
+ gArmPlatformTokenSpaceGuid.PcdDefaultBootInitrdPath
+ gArmPlatformTokenSpaceGuid.PcdDefaultBootArgument
+ gArmPlatformTokenSpaceGuid.PcdDefaultBootType
+ gArmPlatformTokenSpaceGuid.PcdFdtDevicePath
+ gArmPlatformTokenSpaceGuid.PcdPlatformBootTimeOut
+ gArmPlatformTokenSpaceGuid.PcdDefaultConInPaths
+ gArmPlatformTokenSpaceGuid.PcdDefaultConOutPaths
+
+[Depex]
+ TRUE
diff --git a/ArmPlatformPkg/Bds/BdsHelper.c b/ArmPlatformPkg/Bds/BdsHelper.c index 28d02c6620..459ebc39fc 100644 --- a/ArmPlatformPkg/Bds/BdsHelper.c +++ b/ArmPlatformPkg/Bds/BdsHelper.c @@ -1,317 +1,317 @@ -/** @file -* -* Copyright (c) 2011-2012, 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 -EditHIInputStr ( - IN OUT CHAR16 *CmdLine, - IN UINTN MaxCmdLine - ) -{ - UINTN CmdLineIndex; - UINTN WaitIndex; - CHAR8 Char; - EFI_INPUT_KEY Key; - EFI_STATUS Status; - - Print (CmdLine); - - for (CmdLineIndex = StrLen (CmdLine); CmdLineIndex < MaxCmdLine; ) { - Status = gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &WaitIndex); - ASSERT_EFI_ERROR (Status); - - Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key); - ASSERT_EFI_ERROR (Status); - - // Unicode character is valid when Scancode is NUll - if (Key.ScanCode == SCAN_NULL) { - // Scan code is NUll, hence read Unicode character - Char = (CHAR8)Key.UnicodeChar; - } else { - Char = CHAR_NULL; - } - - if ((Char == CHAR_LINEFEED) || (Char == CHAR_CARRIAGE_RETURN) || (Char == 0x7f)) { - CmdLine[CmdLineIndex] = '\0'; - Print (L"\n\r"); - - return EFI_SUCCESS; - } else if ((Key.UnicodeChar == L'\b') || (Key.ScanCode == SCAN_LEFT) || (Key.ScanCode == SCAN_DELETE)){ - if (CmdLineIndex != 0) { - CmdLineIndex--; - Print (L"\b \b"); - } - } else if ((Key.ScanCode == SCAN_ESC) || (Char == 0x1B) || (Char == 0x0)) { - return EFI_INVALID_PARAMETER; - } else { - CmdLine[CmdLineIndex++] = Key.UnicodeChar; - Print (L"%c", Key.UnicodeChar); - } - } - - return EFI_SUCCESS; -} - -EFI_STATUS -GetHIInputStr ( - IN OUT CHAR16 *CmdLine, - IN UINTN MaxCmdLine - ) -{ - EFI_STATUS Status; - - // For a new input just passed an empty string - CmdLine[0] = L'\0'; - - Status = EditHIInputStr (CmdLine, MaxCmdLine); - - return Status; -} - -EFI_STATUS -EditHIInputAscii ( - IN OUT CHAR8 *CmdLine, - IN UINTN MaxCmdLine - ) -{ - CHAR16* Str; - EFI_STATUS Status; - - Str = (CHAR16*)AllocatePool (MaxCmdLine * sizeof(CHAR16)); - AsciiStrToUnicodeStr (CmdLine, Str); - - Status = EditHIInputStr (Str, MaxCmdLine); - if (!EFI_ERROR(Status)) { - UnicodeStrToAsciiStr (Str, CmdLine); - } - FreePool (Str); - - return Status; -} - -EFI_STATUS -GetHIInputAscii ( - IN OUT CHAR8 *CmdLine, - IN UINTN MaxCmdLine - ) -{ - // For a new input just passed an empty string - CmdLine[0] = '\0'; - - return EditHIInputAscii (CmdLine,MaxCmdLine); -} - -EFI_STATUS -GetHIInputInteger ( - OUT UINTN *Integer - ) -{ - CHAR16 CmdLine[255]; - EFI_STATUS Status; - - CmdLine[0] = '\0'; - Status = EditHIInputStr (CmdLine, 255); - if (!EFI_ERROR(Status)) { - *Integer = StrDecimalToUintn (CmdLine); - } - - return Status; -} - -EFI_STATUS -GetHIInputIP ( - OUT EFI_IP_ADDRESS *Ip - ) -{ - CHAR16 CmdLine[255]; - CHAR16 *Str; - EFI_STATUS Status; - - CmdLine[0] = '\0'; - Status = EditHIInputStr (CmdLine,255); - if (!EFI_ERROR(Status)) { - Str = CmdLine; - Ip->v4.Addr[0] = (UINT8)StrDecimalToUintn (Str); - - Str = StrStr (Str, L"."); - if (Str == NULL) { - return EFI_INVALID_PARAMETER; - } - - Ip->v4.Addr[1] = (UINT8)StrDecimalToUintn (++Str); - - Str = StrStr (Str, L"."); - if (Str == NULL) { - return EFI_INVALID_PARAMETER; - } - - Ip->v4.Addr[2] = (UINT8)StrDecimalToUintn (++Str); - - Str = StrStr (Str, L"."); - if (Str == NULL) { - return EFI_INVALID_PARAMETER; - } - - Ip->v4.Addr[3] = (UINT8)StrDecimalToUintn (++Str); - } - - return Status; -} - -EFI_STATUS -GetHIInputBoolean ( - OUT BOOLEAN *Value - ) -{ - CHAR16 CmdBoolean[2]; - EFI_STATUS Status; - - while(1) { - Print (L"[y/n] "); - Status = GetHIInputStr (CmdBoolean, 2); - if (EFI_ERROR(Status)) { - return Status; - } else if ((CmdBoolean[0] == L'y') || (CmdBoolean[0] == L'Y')) { - if (Value) *Value = TRUE; - return EFI_SUCCESS; - } else if ((CmdBoolean[0] == L'n') || (CmdBoolean[0] == L'N')) { - if (Value) *Value = FALSE; - return EFI_SUCCESS; - } - } -} - -BOOLEAN -HasFilePathEfiExtension ( - IN CHAR16* FilePath - ) -{ - return (StrCmp (FilePath + (StrSize(FilePath)/sizeof(CHAR16)) - 5, L".efi") == 0); -} - -// Return the last non end-type Device Path Node from a Device Path -EFI_DEVICE_PATH* -GetLastDevicePathNode ( - IN EFI_DEVICE_PATH* DevicePath - ) -{ - EFI_DEVICE_PATH* PrevDevicePathNode; - - PrevDevicePathNode = DevicePath; - while (!IsDevicePathEndType (DevicePath)) { - PrevDevicePathNode = DevicePath; - DevicePath = NextDevicePathNode (DevicePath); - } - - return PrevDevicePathNode; -} - -EFI_STATUS -GenerateDeviceDescriptionName ( - IN EFI_HANDLE Handle, - IN OUT CHAR16* Description - ) -{ - EFI_STATUS Status; - EFI_COMPONENT_NAME_PROTOCOL* ComponentName2Protocol; - EFI_DEVICE_PATH_TO_TEXT_PROTOCOL* DevicePathToTextProtocol; - EFI_DEVICE_PATH_PROTOCOL* DevicePathProtocol; - CHAR16* DriverName; - CHAR16* DevicePathTxt; - EFI_DEVICE_PATH* DevicePathNode; - - ComponentName2Protocol = NULL; - Status = gBS->HandleProtocol (Handle, &gEfiComponentName2ProtocolGuid, (VOID **)&ComponentName2Protocol); - if (!EFI_ERROR(Status)) { - //TODO: Fixme. we must find the best langague - Status = ComponentName2Protocol->GetDriverName (ComponentName2Protocol,"en",&DriverName); - if (!EFI_ERROR(Status)) { - StrnCpy (Description, DriverName, BOOT_DEVICE_DESCRIPTION_MAX); - } - } - - if (EFI_ERROR(Status)) { - // Use the lastest non null entry of the Device path as a description - Status = gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid, (VOID **)&DevicePathProtocol); - if (EFI_ERROR(Status)) { - return Status; - } - - // Convert the last non end-type Device Path Node in text for the description - DevicePathNode = GetLastDevicePathNode (DevicePathProtocol); - Status = gBS->LocateProtocol (&gEfiDevicePathToTextProtocolGuid, NULL, (VOID **)&DevicePathToTextProtocol); - ASSERT_EFI_ERROR(Status); - DevicePathTxt = DevicePathToTextProtocol->ConvertDevicePathToText (DevicePathNode, TRUE, TRUE); - StrnCpy (Description, DevicePathTxt, BOOT_DEVICE_DESCRIPTION_MAX); - FreePool (DevicePathTxt); - } - - return EFI_SUCCESS; -} - -EFI_STATUS -BdsStartBootOption ( - IN CHAR16* BootOption - ) -{ - EFI_STATUS Status; - BDS_LOAD_OPTION *BdsLoadOption; - - Status = BootOptionFromLoadOptionVariable (BootOption, &BdsLoadOption); - if (!EFI_ERROR(Status)) { - Status = BootOptionStart (BdsLoadOption); - FreePool (BdsLoadOption); - - if (!EFI_ERROR(Status)) { - Status = EFI_SUCCESS; - } else { - Status = EFI_NOT_STARTED; - } - } else { - Status = EFI_NOT_FOUND; - } - return Status; -} - -UINTN -GetUnalignedDevicePathSize ( - IN EFI_DEVICE_PATH* DevicePath - ) -{ - UINTN Size; - EFI_DEVICE_PATH* AlignedDevicePath; - - if ((UINTN)DevicePath & 0x1) { - AlignedDevicePath = DuplicateDevicePath (DevicePath); - Size = GetDevicePathSize (AlignedDevicePath); - FreePool (AlignedDevicePath); - } else { - Size = GetDevicePathSize (DevicePath); - } - return Size; -} - -EFI_DEVICE_PATH* -GetAlignedDevicePath ( - IN EFI_DEVICE_PATH* DevicePath - ) -{ - if ((UINTN)DevicePath & 0x1) { - return DuplicateDevicePath (DevicePath); - } else { - return DevicePath; - } -} - +/** @file
+*
+* Copyright (c) 2011-2012, 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
+EditHIInputStr (
+ IN OUT CHAR16 *CmdLine,
+ IN UINTN MaxCmdLine
+ )
+{
+ UINTN CmdLineIndex;
+ UINTN WaitIndex;
+ CHAR8 Char;
+ EFI_INPUT_KEY Key;
+ EFI_STATUS Status;
+
+ Print (CmdLine);
+
+ for (CmdLineIndex = StrLen (CmdLine); CmdLineIndex < MaxCmdLine; ) {
+ Status = gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &WaitIndex);
+ ASSERT_EFI_ERROR (Status);
+
+ Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
+ ASSERT_EFI_ERROR (Status);
+
+ // Unicode character is valid when Scancode is NUll
+ if (Key.ScanCode == SCAN_NULL) {
+ // Scan code is NUll, hence read Unicode character
+ Char = (CHAR8)Key.UnicodeChar;
+ } else {
+ Char = CHAR_NULL;
+ }
+
+ if ((Char == CHAR_LINEFEED) || (Char == CHAR_CARRIAGE_RETURN) || (Char == 0x7f)) {
+ CmdLine[CmdLineIndex] = '\0';
+ Print (L"\n\r");
+
+ return EFI_SUCCESS;
+ } else if ((Key.UnicodeChar == L'\b') || (Key.ScanCode == SCAN_LEFT) || (Key.ScanCode == SCAN_DELETE)){
+ if (CmdLineIndex != 0) {
+ CmdLineIndex--;
+ Print (L"\b \b");
+ }
+ } else if ((Key.ScanCode == SCAN_ESC) || (Char == 0x1B) || (Char == 0x0)) {
+ return EFI_INVALID_PARAMETER;
+ } else {
+ CmdLine[CmdLineIndex++] = Key.UnicodeChar;
+ Print (L"%c", Key.UnicodeChar);
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+GetHIInputStr (
+ IN OUT CHAR16 *CmdLine,
+ IN UINTN MaxCmdLine
+ )
+{
+ EFI_STATUS Status;
+
+ // For a new input just passed an empty string
+ CmdLine[0] = L'\0';
+
+ Status = EditHIInputStr (CmdLine, MaxCmdLine);
+
+ return Status;
+}
+
+EFI_STATUS
+EditHIInputAscii (
+ IN OUT CHAR8 *CmdLine,
+ IN UINTN MaxCmdLine
+ )
+{
+ CHAR16* Str;
+ EFI_STATUS Status;
+
+ Str = (CHAR16*)AllocatePool (MaxCmdLine * sizeof(CHAR16));
+ AsciiStrToUnicodeStr (CmdLine, Str);
+
+ Status = EditHIInputStr (Str, MaxCmdLine);
+ if (!EFI_ERROR(Status)) {
+ UnicodeStrToAsciiStr (Str, CmdLine);
+ }
+ FreePool (Str);
+
+ return Status;
+}
+
+EFI_STATUS
+GetHIInputAscii (
+ IN OUT CHAR8 *CmdLine,
+ IN UINTN MaxCmdLine
+ )
+{
+ // For a new input just passed an empty string
+ CmdLine[0] = '\0';
+
+ return EditHIInputAscii (CmdLine,MaxCmdLine);
+}
+
+EFI_STATUS
+GetHIInputInteger (
+ OUT UINTN *Integer
+ )
+{
+ CHAR16 CmdLine[255];
+ EFI_STATUS Status;
+
+ CmdLine[0] = '\0';
+ Status = EditHIInputStr (CmdLine, 255);
+ if (!EFI_ERROR(Status)) {
+ *Integer = StrDecimalToUintn (CmdLine);
+ }
+
+ return Status;
+}
+
+EFI_STATUS
+GetHIInputIP (
+ OUT EFI_IP_ADDRESS *Ip
+ )
+{
+ CHAR16 CmdLine[255];
+ CHAR16 *Str;
+ EFI_STATUS Status;
+
+ CmdLine[0] = '\0';
+ Status = EditHIInputStr (CmdLine,255);
+ if (!EFI_ERROR(Status)) {
+ Str = CmdLine;
+ Ip->v4.Addr[0] = (UINT8)StrDecimalToUintn (Str);
+
+ Str = StrStr (Str, L".");
+ if (Str == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip->v4.Addr[1] = (UINT8)StrDecimalToUintn (++Str);
+
+ Str = StrStr (Str, L".");
+ if (Str == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip->v4.Addr[2] = (UINT8)StrDecimalToUintn (++Str);
+
+ Str = StrStr (Str, L".");
+ if (Str == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Ip->v4.Addr[3] = (UINT8)StrDecimalToUintn (++Str);
+ }
+
+ return Status;
+}
+
+EFI_STATUS
+GetHIInputBoolean (
+ OUT BOOLEAN *Value
+ )
+{
+ CHAR16 CmdBoolean[2];
+ EFI_STATUS Status;
+
+ while(1) {
+ Print (L"[y/n] ");
+ Status = GetHIInputStr (CmdBoolean, 2);
+ if (EFI_ERROR(Status)) {
+ return Status;
+ } else if ((CmdBoolean[0] == L'y') || (CmdBoolean[0] == L'Y')) {
+ if (Value) *Value = TRUE;
+ return EFI_SUCCESS;
+ } else if ((CmdBoolean[0] == L'n') || (CmdBoolean[0] == L'N')) {
+ if (Value) *Value = FALSE;
+ return EFI_SUCCESS;
+ }
+ }
+}
+
+BOOLEAN
+HasFilePathEfiExtension (
+ IN CHAR16* FilePath
+ )
+{
+ return (StrCmp (FilePath + (StrSize(FilePath)/sizeof(CHAR16)) - 5, L".efi") == 0);
+}
+
+// Return the last non end-type Device Path Node from a Device Path
+EFI_DEVICE_PATH*
+GetLastDevicePathNode (
+ IN EFI_DEVICE_PATH* DevicePath
+ )
+{
+ EFI_DEVICE_PATH* PrevDevicePathNode;
+
+ PrevDevicePathNode = DevicePath;
+ while (!IsDevicePathEndType (DevicePath)) {
+ PrevDevicePathNode = DevicePath;
+ DevicePath = NextDevicePathNode (DevicePath);
+ }
+
+ return PrevDevicePathNode;
+}
+
+EFI_STATUS
+GenerateDeviceDescriptionName (
+ IN EFI_HANDLE Handle,
+ IN OUT CHAR16* Description
+ )
+{
+ EFI_STATUS Status;
+ EFI_COMPONENT_NAME_PROTOCOL* ComponentName2Protocol;
+ EFI_DEVICE_PATH_TO_TEXT_PROTOCOL* DevicePathToTextProtocol;
+ EFI_DEVICE_PATH_PROTOCOL* DevicePathProtocol;
+ CHAR16* DriverName;
+ CHAR16* DevicePathTxt;
+ EFI_DEVICE_PATH* DevicePathNode;
+
+ ComponentName2Protocol = NULL;
+ Status = gBS->HandleProtocol (Handle, &gEfiComponentName2ProtocolGuid, (VOID **)&ComponentName2Protocol);
+ if (!EFI_ERROR(Status)) {
+ //TODO: Fixme. we must find the best langague
+ Status = ComponentName2Protocol->GetDriverName (ComponentName2Protocol,"en",&DriverName);
+ if (!EFI_ERROR(Status)) {
+ StrnCpy (Description, DriverName, BOOT_DEVICE_DESCRIPTION_MAX);
+ }
+ }
+
+ if (EFI_ERROR(Status)) {
+ // Use the lastest non null entry of the Device path as a description
+ Status = gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid, (VOID **)&DevicePathProtocol);
+ if (EFI_ERROR(Status)) {
+ return Status;
+ }
+
+ // Convert the last non end-type Device Path Node in text for the description
+ DevicePathNode = GetLastDevicePathNode (DevicePathProtocol);
+ Status = gBS->LocateProtocol (&gEfiDevicePathToTextProtocolGuid, NULL, (VOID **)&DevicePathToTextProtocol);
+ ASSERT_EFI_ERROR(Status);
+ DevicePathTxt = DevicePathToTextProtocol->ConvertDevicePathToText (DevicePathNode, TRUE, TRUE);
+ StrnCpy (Description, DevicePathTxt, BOOT_DEVICE_DESCRIPTION_MAX);
+ FreePool (DevicePathTxt);
+ }
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+BdsStartBootOption (
+ IN CHAR16* BootOption
+ )
+{
+ EFI_STATUS Status;
+ BDS_LOAD_OPTION *BdsLoadOption;
+
+ Status = BootOptionFromLoadOptionVariable (BootOption, &BdsLoadOption);
+ if (!EFI_ERROR(Status)) {
+ Status = BootOptionStart (BdsLoadOption);
+ FreePool (BdsLoadOption);
+
+ if (!EFI_ERROR(Status)) {
+ Status = EFI_SUCCESS;
+ } else {
+ Status = EFI_NOT_STARTED;
+ }
+ } else {
+ Status = EFI_NOT_FOUND;
+ }
+ return Status;
+}
+
+UINTN
+GetUnalignedDevicePathSize (
+ IN EFI_DEVICE_PATH* DevicePath
+ )
+{
+ UINTN Size;
+ EFI_DEVICE_PATH* AlignedDevicePath;
+
+ if ((UINTN)DevicePath & 0x1) {
+ AlignedDevicePath = DuplicateDevicePath (DevicePath);
+ Size = GetDevicePathSize (AlignedDevicePath);
+ FreePool (AlignedDevicePath);
+ } else {
+ Size = GetDevicePathSize (DevicePath);
+ }
+ return Size;
+}
+
+EFI_DEVICE_PATH*
+GetAlignedDevicePath (
+ IN EFI_DEVICE_PATH* DevicePath
+ )
+{
+ if ((UINTN)DevicePath & 0x1) {
+ return DuplicateDevicePath (DevicePath);
+ } else {
+ return DevicePath;
+ }
+}
+
|