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

fixed DMA not be stopped issue when gBS->ExitBootServices called.

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8058 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2009-04-10 08:31:45 +00:00
parent f05b1c14ec
commit 0428a6cb12
10 changed files with 181 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
MdeModulePkg/Universal/Network/SnpDxe/Snp.c
View File

@@ -1,7 +1,7 @@
/** @file
Implementation of driver entry point and driver binding protocol.
Copyright (c) 2004 - 2008, Intel Corporation. <BR>
Copyright (c) 2004 - 2009, Intel Corporation. <BR>
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
@@ -22,6 +22,30 @@ V2P *mV2p = NULL; // undi3.0 map_list head
// End Global variables
//
/**
One notified function to stop UNDI device when gBS->ExitBootServices() called.
@param Event Pointer to this event
@param Context Event hanlder private data
**/
VOID
EFIAPI
SnpNotifyExitBootServices (
EFI_EVENT Event,
VOID *Context
)
{
SNP_DRIVER *Snp;
Snp = (SNP_DRIVER *)Context;
//
// Shutdown and stop UNDI driver
//
PxeShutdown (Snp);
PxeStop (Snp);
}
/**
Send command to UNDI. It does nothing currently.
@@ -634,6 +658,21 @@ SimpleNetworkDriverStart (
PxeShutdown (Snp);
PxeStop (Snp);
//
// Create EXIT_BOOT_SERIVES Event
//
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
SnpNotifyExitBootServices,
Snp,
&gEfiEventExitBootServicesGuid,
&Snp->ExitBootServicesEvent
);
if (EFI_ERROR (Status)) {
goto Error_DeleteSNP;
}
//
// add SNP to the undi handle
//
@@ -738,6 +777,11 @@ SimpleNetworkDriverStop (
return Status;
}
//
// Close EXIT_BOOT_SERIVES Event
//
gBS->CloseEvent (Snp->ExitBootServicesEvent);
Status = gBS->CloseProtocol (
Controller,
&gEfiNetworkInterfaceIdentifierProtocolGuid_31,

6
MdeModulePkg/Universal/Network/SnpDxe/Snp.h
View File

@@ -1,7 +1,7 @@
/** @file
Declaration of strctures and functions for SnpDxe driver.
Copyright (c) 2004 - 2008, Intel Corporation. <BR>
Copyright (c) 2004 - 2009, Intel Corporation. <BR>
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
@@ -22,6 +22,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Protocol/NetworkInterfaceIdentifier.h>
#include <Protocol/DevicePath.h>
#include <Guid/EventGroup.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiDriverEntryPoint.h>
@@ -118,6 +120,8 @@ typedef struct {
EFI_PHYSICAL_ADDRESS VirtualAddress;
VOID *MapCookie;
} MapList[MAX_MAP_LENGTH];
EFI_EVENT ExitBootServicesEvent;
} SNP_DRIVER;
#define EFI_SIMPLE_NETWORK_DEV_FROM_THIS(a) CR (a, SNP_DRIVER, Snp, SNP_DRIVER_SIGNATURE)

6
MdeModulePkg/Universal/Network/SnpDxe/SnpDxe.inf
View File

@@ -1,7 +1,7 @@
#/** @file
# Component description file for SNP module.
#
# Copyright (c) 2006, Intel Corporation. <BR>
# Copyright (c) 2006 - 2009, Intel Corporation. <BR>
# 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
@@ -65,6 +65,10 @@
DebugLib
[Guids]
gEfiEventExitBootServicesGuid ## CONSUMES
[Protocols]
gEfiPciIoProtocolGuid # PROTOCOL ALWAYS_CONSUMED
gEfiSimpleNetworkProtocolGuid # PROTOCOL ALWAYS_CONSUMED