diff options
Diffstat (limited to 'IntelFspWrapperPkg/FspNotifyDxe/FspNotifyDxe.c')
| -rw-r--r-- | IntelFspWrapperPkg/FspNotifyDxe/FspNotifyDxe.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/IntelFspWrapperPkg/FspNotifyDxe/FspNotifyDxe.c b/IntelFspWrapperPkg/FspNotifyDxe/FspNotifyDxe.c new file mode 100644 index 0000000000..7beedc458a --- /dev/null +++ b/IntelFspWrapperPkg/FspNotifyDxe/FspNotifyDxe.c @@ -0,0 +1,149 @@ +/** @file
+ This driver will register two callbacks to call fsp's notifies.
+
+ Copyright (c) 2014, Intel Corporation. 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.
+
+**/
+
+#include <PiDxe.h>
+
+#include <Protocol/PciEnumerationComplete.h>
+
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiLib.h>
+#include <Library/FspApiLib.h>
+
+FSP_INFO_HEADER *mFspHeader = NULL;
+
+/**
+ PciEnumerationComplete Protocol notification event handler.
+
+ @param[in] Event Event whose notification function is being invoked.
+ @param[in] Context Pointer to the notification function's context.
+**/
+VOID
+EFIAPI
+OnPciEnumerationComplete (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ NOTIFY_PHASE_PARAMS NotifyPhaseParams;
+ EFI_STATUS Status;
+ FSP_STATUS FspStatus;
+ VOID *Interface;
+
+ //
+ // Try to locate it because gEfiPciEnumerationCompleteProtocolGuid will trigger it once when registration.
+ // Just return if it is not found.
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiPciEnumerationCompleteProtocolGuid,
+ NULL,
+ &Interface
+ );
+ if (EFI_ERROR (Status)) {
+ return ;
+ }
+
+ NotifyPhaseParams.Phase = EnumInitPhaseAfterPciEnumeration;
+ FspStatus = CallFspNotifyPhase (mFspHeader, &NotifyPhaseParams);
+ if (FspStatus != FSP_SUCCESS) {
+ DEBUG((DEBUG_ERROR, "FSP NotifyPhase AfterPciEnumeration failed, status: 0x%x\n", FspStatus));
+ } else {
+ DEBUG((DEBUG_INFO, "FSP NotifyPhase AfterPciEnumeration Success.\n"));
+ }
+}
+
+/**
+ Notification function of EVT_GROUP_READY_TO_BOOT event group.
+
+ This is a notification function registered on EVT_GROUP_READY_TO_BOOT event group.
+ When the Boot Manager is about to load and execute a boot option, it reclaims variable
+ storage if free size is below the threshold.
+
+ @param[in] Event Event whose notification function is being invoked.
+ @param[in] Context Pointer to the notification function's context.
+
+**/
+VOID
+EFIAPI
+OnReadyToBoot (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ NOTIFY_PHASE_PARAMS NotifyPhaseParams;
+ FSP_STATUS FspStatus;
+
+ gBS->CloseEvent (Event);
+
+ NotifyPhaseParams.Phase = EnumInitPhaseReadyToBoot;
+ FspStatus = CallFspNotifyPhase (mFspHeader, &NotifyPhaseParams);
+ if (FspStatus != FSP_SUCCESS) {
+ DEBUG((DEBUG_ERROR, "FSP NotifyPhase ReadyToBoot failed, status: 0x%x\n", FspStatus));
+ } else {
+ DEBUG((DEBUG_INFO, "FSP NotifyPhase ReadyToBoot Success.\n"));
+ }
+}
+
+/**
+ Main entry for the FSP DXE module.
+
+ This routine registers two callbacks to call fsp's notifies.
+
+ @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
+FspDxeEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_EVENT ReadyToBootEvent;
+ VOID *Registration;
+ EFI_EVENT ProtocolNotifyEvent;
+
+ mFspHeader = FspFindFspHeader (PcdGet32 (PcdFlashFvFspBase));
+ DEBUG ((DEBUG_INFO, "FspHeader - 0x%x\n", mFspHeader));
+ if (mFspHeader == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ ProtocolNotifyEvent = EfiCreateProtocolNotifyEvent (
+ &gEfiPciEnumerationCompleteProtocolGuid,
+ TPL_CALLBACK,
+ OnPciEnumerationComplete,
+ NULL,
+ &Registration
+ );
+ ASSERT (ProtocolNotifyEvent != NULL);
+
+ Status = EfiCreateEventReadyToBootEx (
+ TPL_CALLBACK,
+ OnReadyToBoot,
+ NULL,
+ &ReadyToBootEvent
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
+
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