3 * Copyright (c) 2011-2013, ARM Limited. All rights reserved.
5 * This program and the accompanying materials
6 * are licensed and made available under the terms and conditions of the BSD License
7 * which accompanies this distribution. The full text of the license may be found at
8 * http://opensource.org/licenses/bsd-license.php
10 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #include "BdsInternal.h"
19 IN OUT CHAR16
*CmdLine
,
29 // The command line must be at least one character long
30 ASSERT (MaxCmdLine
> 0);
32 // Ensure the last character of the buffer is the NULL character
33 CmdLine
[MaxCmdLine
- 1] = '\0';
37 // To prevent a buffer overflow, we only allow to enter (MaxCmdLine-1) characters
38 for (CmdLineIndex
= StrLen (CmdLine
); CmdLineIndex
< MaxCmdLine
- 1; ) {
39 Status
= gBS
->WaitForEvent (1, &gST
->ConIn
->WaitForKey
, &WaitIndex
);
40 ASSERT_EFI_ERROR (Status
);
42 Status
= gST
->ConIn
->ReadKeyStroke (gST
->ConIn
, &Key
);
43 ASSERT_EFI_ERROR (Status
);
45 // Unicode character is valid when Scancode is NUll
46 if (Key
.ScanCode
== SCAN_NULL
) {
47 // Scan code is NUll, hence read Unicode character
48 Char
= (CHAR8
)Key
.UnicodeChar
;
53 if ((Char
== CHAR_LINEFEED
) || (Char
== CHAR_CARRIAGE_RETURN
) || (Char
== 0x7f)) {
54 CmdLine
[CmdLineIndex
] = '\0';
58 } else if ((Key
.UnicodeChar
== L
'\b') || (Key
.ScanCode
== SCAN_LEFT
) || (Key
.ScanCode
== SCAN_DELETE
)){
59 if (CmdLineIndex
!= 0) {
63 } else if ((Key
.ScanCode
== SCAN_ESC
) || (Char
== 0x1B) || (Char
== 0x0)) {
64 return EFI_INVALID_PARAMETER
;
66 CmdLine
[CmdLineIndex
++] = Key
.UnicodeChar
;
67 Print (L
"%c", Key
.UnicodeChar
);
76 IN OUT CHAR16
*CmdLine
,
82 // For a new input just passed an empty string
85 Status
= EditHIInputStr (CmdLine
, MaxCmdLine
);
92 IN OUT CHAR8
*CmdLine
,
99 Str
= (CHAR16
*)AllocatePool (MaxCmdLine
* sizeof(CHAR16
));
100 AsciiStrToUnicodeStr (CmdLine
, Str
);
102 Status
= EditHIInputStr (Str
, MaxCmdLine
);
103 if (!EFI_ERROR(Status
)) {
104 UnicodeStrToAsciiStr (Str
, CmdLine
);
113 IN OUT CHAR8
*CmdLine
,
117 // For a new input just passed an empty string
120 return EditHIInputAscii (CmdLine
,MaxCmdLine
);
132 Status
= EditHIInputStr (CmdLine
, 255);
133 if (!EFI_ERROR(Status
)) {
134 *Integer
= StrDecimalToUintn (CmdLine
);
142 OUT EFI_IP_ADDRESS
*Ip
150 Status
= EditHIInputStr (CmdLine
,255);
151 if (!EFI_ERROR(Status
)) {
153 Ip
->v4
.Addr
[0] = (UINT8
)StrDecimalToUintn (Str
);
155 Str
= StrStr (Str
, L
".");
157 return EFI_INVALID_PARAMETER
;
160 Ip
->v4
.Addr
[1] = (UINT8
)StrDecimalToUintn (++Str
);
162 Str
= StrStr (Str
, L
".");
164 return EFI_INVALID_PARAMETER
;
167 Ip
->v4
.Addr
[2] = (UINT8
)StrDecimalToUintn (++Str
);
169 Str
= StrStr (Str
, L
".");
171 return EFI_INVALID_PARAMETER
;
174 Ip
->v4
.Addr
[3] = (UINT8
)StrDecimalToUintn (++Str
);
185 CHAR16 CmdBoolean
[2];
190 Status
= GetHIInputStr (CmdBoolean
, 2);
191 if (EFI_ERROR(Status
)) {
193 } else if ((CmdBoolean
[0] == L
'y') || (CmdBoolean
[0] == L
'Y')) {
194 if (Value
) *Value
= TRUE
;
196 } else if ((CmdBoolean
[0] == L
'n') || (CmdBoolean
[0] == L
'N')) {
197 if (Value
) *Value
= FALSE
;
204 HasFilePathEfiExtension (
208 return (StrCmp (FilePath
+ (StrSize(FilePath
)/sizeof(CHAR16
)) - 5, L
".efi") == 0);
211 // Return the last non end-type Device Path Node from a Device Path
213 GetLastDevicePathNode (
214 IN EFI_DEVICE_PATH
* DevicePath
217 EFI_DEVICE_PATH
* PrevDevicePathNode
;
219 PrevDevicePathNode
= DevicePath
;
220 while (!IsDevicePathEndType (DevicePath
)) {
221 PrevDevicePathNode
= DevicePath
;
222 DevicePath
= NextDevicePathNode (DevicePath
);
225 return PrevDevicePathNode
;
229 GenerateDeviceDescriptionName (
230 IN EFI_HANDLE Handle
,
231 IN OUT CHAR16
* Description
235 EFI_COMPONENT_NAME_PROTOCOL
* ComponentName2Protocol
;
236 EFI_DEVICE_PATH_TO_TEXT_PROTOCOL
* DevicePathToTextProtocol
;
237 EFI_DEVICE_PATH_PROTOCOL
* DevicePathProtocol
;
239 CHAR16
* DevicePathTxt
;
240 EFI_DEVICE_PATH
* DevicePathNode
;
242 ComponentName2Protocol
= NULL
;
243 Status
= gBS
->HandleProtocol (Handle
, &gEfiComponentName2ProtocolGuid
, (VOID
**)&ComponentName2Protocol
);
244 if (!EFI_ERROR(Status
)) {
245 //TODO: Fixme. we must find the best langague
246 Status
= ComponentName2Protocol
->GetDriverName (ComponentName2Protocol
,"en",&DriverName
);
247 if (!EFI_ERROR(Status
)) {
248 StrnCpy (Description
, DriverName
, BOOT_DEVICE_DESCRIPTION_MAX
);
252 if (EFI_ERROR(Status
)) {
253 // Use the lastest non null entry of the Device path as a description
254 Status
= gBS
->HandleProtocol (Handle
, &gEfiDevicePathProtocolGuid
, (VOID
**)&DevicePathProtocol
);
255 if (EFI_ERROR(Status
)) {
259 // Convert the last non end-type Device Path Node in text for the description
260 DevicePathNode
= GetLastDevicePathNode (DevicePathProtocol
);
261 Status
= gBS
->LocateProtocol (&gEfiDevicePathToTextProtocolGuid
, NULL
, (VOID
**)&DevicePathToTextProtocol
);
262 ASSERT_EFI_ERROR(Status
);
263 DevicePathTxt
= DevicePathToTextProtocol
->ConvertDevicePathToText (DevicePathNode
, TRUE
, TRUE
);
264 StrnCpy (Description
, DevicePathTxt
, BOOT_DEVICE_DESCRIPTION_MAX
);
265 FreePool (DevicePathTxt
);
273 IN CHAR16
* BootOption
277 BDS_LOAD_OPTION
*BdsLoadOption
;
279 Status
= BootOptionFromLoadOptionVariable (BootOption
, &BdsLoadOption
);
280 if (!EFI_ERROR(Status
)) {
281 Status
= BootOptionStart (BdsLoadOption
);
282 FreePool (BdsLoadOption
);
284 if (!EFI_ERROR(Status
)) {
285 Status
= EFI_SUCCESS
;
287 Status
= EFI_NOT_STARTED
;
290 Status
= EFI_NOT_FOUND
;
296 GetUnalignedDevicePathSize (
297 IN EFI_DEVICE_PATH
* DevicePath
301 EFI_DEVICE_PATH
* AlignedDevicePath
;
303 if ((UINTN
)DevicePath
& 0x1) {
304 AlignedDevicePath
= DuplicateDevicePath (DevicePath
);
305 Size
= GetDevicePathSize (AlignedDevicePath
);
306 FreePool (AlignedDevicePath
);
308 Size
= GetDevicePathSize (DevicePath
);
314 GetAlignedDevicePath (
315 IN EFI_DEVICE_PATH
* DevicePath
318 if ((UINTN
)DevicePath
& 0x1) {
319 return DuplicateDevicePath (DevicePath
);