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Print PCI Interrupt Line/Interrupt Pin registers before booting legacy OS. 

Signed-off-by: niruiyu
Reviewed-by: li-elvin

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12088 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
niruiyu 2011-08-04 09:14:31 +00:00
parent 8db6a82c50
commit 7dad86fc60
1 changed files with 71 additions and 3 deletions
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74
IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c
View File

@ -135,6 +135,72 @@ PrintHddInfo (
return ;
}
/**
Print the PCI Interrupt Line and Interrupt Pin registers.
**/
VOID
PrintPciInterruptRegister (
VOID
)
{
EFI_STATUS Status;
UINTN Index;
EFI_HANDLE *Handles;
UINTN HandleNum;
EFI_PCI_IO_PROTOCOL *PciIo;
UINT8 Interrupt[2];
UINTN Segment;
UINTN Bus;
UINTN Device;
UINTN Function;
gBS->LocateHandleBuffer (
ByProtocol,
&gEfiPciIoProtocolGuid,
NULL,
&HandleNum,
&Handles
);
Bus = 0;
Device = 0;
Function = 0;
DEBUG ((EFI_D_INFO, "\n"));
DEBUG ((EFI_D_INFO, " bb/dd/ff interrupt line interrupt pin\n"));
DEBUG ((EFI_D_INFO, "======================================\n"));
for (Index = 0; Index < HandleNum; Index++) {
Status = gBS->HandleProtocol (Handles[Index], &gEfiPciIoProtocolGuid, (VOID **) &PciIo);
if (!EFI_ERROR (Status)) {
Status = PciIo->Pci.Read (
PciIo,
EfiPciIoWidthUint8,
PCI_INT_LINE_OFFSET,
2,
Interrupt
);
}
if (!EFI_ERROR (Status)) {
Status = PciIo->GetLocation (
PciIo,
&Segment,
&Bus,
&Device,
&Function
);
}
if (!EFI_ERROR (Status)) {
DEBUG ((EFI_D_INFO, " %02x/%02x/%02x 0x%02x 0x%02x\n",
Bus, Device, Function, Interrupt[0], Interrupt[1]));
}
}
DEBUG ((EFI_D_INFO, "\n"));
if (Handles != NULL) {
FreePool (Handles);
}
}
/**
Identify drive data must be updated to actual parameters before boot.
@ -1031,9 +1097,11 @@ GenericLegacyBoot (
&LocalBbsTable
);
PrintBbsTable (LocalBbsTable);
PrintHddInfo (LocalHddInfo);
DEBUG_CODE (
PrintPciInterruptRegister ();
PrintBbsTable (LocalBbsTable);
PrintHddInfo (LocalHddInfo);
);
//
// If drive wasn't spun up then BuildIdeData may have found new drives.
// Need to update BBS boot priority.