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

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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
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54
MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
View File

@ -2,7 +2,7 @@
The UHCI driver model and HC protocol routines.
Copyright (c) 2004 - 2008, Intel Corporation
Copyright (c) 2004 - 2009, Intel Corporation
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
@ -1517,6 +1517,10 @@ UhciFreeDev (
gBS->CloseEvent (Uhc->AsyncIntMonitor);
}
if (Uhc->ExitBootServiceEvent != NULL) {
gBS->CloseEvent (Uhc->ExitBootServiceEvent);
}
if (Uhc->MemPool != NULL) {
UsbHcFreeMemPool (Uhc->MemPool);
}
@ -1572,6 +1576,31 @@ UhciCleanDevUp (
UhciFreeDev (Uhc);
}
/**
One notified function to stop the Host Controller when gBS->ExitBootServices() called.
@param Event Pointer to this event
@param Context Event hanlder private data
**/
VOID
EFIAPI
UhcExitBootService (
EFI_EVENT Event,
VOID *Context
)
{
USB_HC_DEV *Uhc;
Uhc = (USB_HC_DEV *) Context;
//
// Stop the Host Controller
//
UhciStopHc (Uhc, UHC_GENERIC_TIMEOUT);
return;
}
/**
Starting the Usb UHCI Driver.
@ -1703,6 +1732,21 @@ UhciDriverBindingStart (
goto FREE_UHC;
}
//
// Create event to stop the HC when exit boot service.
//
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
UhcExitBootService,
Uhc,
&gEfiEventExitBootServicesGuid,
&Uhc->ExitBootServiceEvent
);
if (EFI_ERROR (Status)) {
goto UNINSTALL_USBHC;
}
//
// Install the component name protocol
//
@ -1730,6 +1774,14 @@ UhciDriverBindingStart (
UhciWriteReg (Uhc->PciIo, USBCMD_OFFSET, USBCMD_RS | USBCMD_MAXP);
return EFI_SUCCESS;
UNINSTALL_USBHC:
gBS->UninstallMultipleProtocolInterfaces (
Controller,
&gEfiUsb2HcProtocolGuid,
&Uhc->Usb2Hc,
NULL
);
FREE_UHC:
UhciFreeDev (Uhc);