diff options
Diffstat (limited to 'EmbeddedPkg/Library/EblAddExternalCommandLib/EblAddExternalCommandLib.c')
| -rw-r--r-- | EmbeddedPkg/Library/EblAddExternalCommandLib/EblAddExternalCommandLib.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/EmbeddedPkg/Library/EblAddExternalCommandLib/EblAddExternalCommandLib.c b/EmbeddedPkg/Library/EblAddExternalCommandLib/EblAddExternalCommandLib.c new file mode 100644 index 0000000000..fcb533c8b7 --- /dev/null +++ b/EmbeddedPkg/Library/EblAddExternalCommandLib/EblAddExternalCommandLib.c @@ -0,0 +1,156 @@ +/** @file
+ Add external EblCmd Lib
+
+ Copyright (c) 2007, Intel Corporation<BR>
+ Portions copyright (c) 2008-2009, Apple Inc. All rights reserved.
+
+ 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 <PiDxe.h>
+#include <Library/BaseLib.h>
+#include <Library/EblAddExternalCommandLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+
+
+STATIC BOOLEAN gInstalledCommand = FALSE;
+STATIC EFI_EVENT mEblCommandRegistration = NULL;
+
+STATIC const EBL_COMMAND_TABLE *mAddExternalCmdLibTemplate = NULL;
+STATIC UINTN mAddExternalCmdLibTemplateSize = 0;
+EBL_ADD_COMMAND_PROTOCOL *gEblExternalCommand = NULL;
+
+
+/**
+ Return a keypress or optionally timeout if a timeout value was passed in.
+ An optional callback funciton is called evey second when waiting for a
+ timeout.
+
+ @param Key EFI Key information returned
+ @param TimeoutInSec Number of seconds to wait to timeout
+ @param CallBack Callback called every second during the timeout wait
+
+ @return EFI_SUCCESS Key was returned
+ @return EFI_TIMEOUT If the TimoutInSec expired
+
+**/
+EFI_STATUS
+EFIAPI
+EblGetCharKey (
+ IN OUT EFI_INPUT_KEY *Key,
+ IN UINTN TimeoutInSec,
+ IN EBL_GET_CHAR_CALL_BACK CallBack OPTIONAL
+ )
+{
+ if (gEblExternalCommand != NULL) {
+ return gEblExternalCommand->EblGetCharKey (Key, TimeoutInSec, CallBack);
+ }
+ return EFI_TIMEOUT;
+}
+
+
+/**
+ This routine is used prevent command output data from scrolling off the end
+ of the screen. The global gPageBreak is used to turn on or off this feature.
+ If the CurrentRow is near the end of the screen pause and print out a prompt
+ If the use hits Q to quit return TRUE else for any other key return FALSE.
+ PrefixNewline is used to figure out if a newline is needed before the prompt
+ string. This depends on the last print done before calling this function.
+ CurrentRow is updated by one on a call or set back to zero if a prompt is
+ needed.
+
+ @param CurrentRow Used to figure out if its the end of the page and updated
+ @param PrefixNewline Did previous print issue a newline
+
+ @return TRUE if Q was hit to quit, FALSE in all other cases.
+
+**/
+BOOLEAN
+EFIAPI
+EblAnyKeyToContinueQtoQuit (
+ IN UINTN *CurrentRow,
+ IN BOOLEAN PrefixNewline
+ )
+{
+ if (gEblExternalCommand != NULL) {
+ return gEblExternalCommand->EblAnyKeyToContinueQtoQuit (CurrentRow, PrefixNewline);
+ }
+ return FALSE;
+}
+
+
+
+/**
+ Update mFvbEntry. Add new entry, or update existing entry if Fvb protocol is
+ reinstalled.
+
+ @param Event The Event that is being processed
+ @param Context Event Context
+
+**/
+VOID
+EFIAPI
+EblAddCommandNotificationEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+
+ if (!gInstalledCommand) {
+ Status = gBS->LocateProtocol (&gEfiEblAddCommandProtocolGuid, NULL, (VOID **)&gEblExternalCommand);
+ if (!EFI_ERROR (Status)) {
+ gEblExternalCommand->AddCommands (mAddExternalCmdLibTemplate, mAddExternalCmdLibTemplateSize);
+ gInstalledCommand = TRUE;
+ }
+ }
+}
+
+
+
+/**
+ The user Entry Point for the driver. The user code starts with this function
+ as the real entry point for the image goes into a library that calls this
+ function.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval other Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+EblAddExternalCommands (
+ IN const EBL_COMMAND_TABLE *EntryArray,
+ IN UINTN ArrayCount
+ )
+{
+ if (mAddExternalCmdLibTemplate != NULL) {
+ return EFI_ALREADY_STARTED;
+ }
+
+ mAddExternalCmdLibTemplate = EntryArray;
+ mAddExternalCmdLibTemplateSize = ArrayCount;
+
+ EfiCreateProtocolNotifyEvent (
+ &gEfiEblAddCommandProtocolGuid,
+ TPL_CALLBACK,
+ EblAddCommandNotificationEvent,
+ NULL,
+ &mEblCommandRegistration
+ );
+
+ return EFI_SUCCESS;
+}
+
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