I guess I should also note, that I know that AcpiOsGetRootPointer
returns the correct value since I can successfully use
AcpiWalkNamespace (ACPI_TYPE_ANY, Handle, 0xffffffff,
DecodeOneDevice, (void*)p, NULL);
Thanks
On Wed, 2006-05-17 at 10:58 -0500, Joel Bretz wrote:
> Hmm something is wrong. :(
>
>
> Here's the code that I'm using to get the Debug Port:
> //----- <snip> -----
> ACPI_STATUS Status;
> ACPI_TABLE_HEADER *pAcpiTableHeader;
>
> printf("JOEL: Get DGBP\n")
> Status = AcpiGetFirmwareTable("DBGP",1,ACPI_PHYSICAL_ADDRESSING,
> &pAcpiTableHeader);
> if(ACPI_FAILURE(Status))
> {
> FAIL_STOP("AcpiGetFirmwareTable failed.\n"); //<
> }
>
> //----- </snip> -----
>
> Here's the output from my system
>
> //----- <snip> -----
> I> JOEL: Get DBGP
> I> AcpiOsGetRootPointer
> I> ACPI Error (tbget-0259): Invalid address flags X [X]
> I> ERROR: file: ../src/acpi.c, line: 846, func: GetAcpiDGBP, p:008d37e0:
> I> AcpiGetFirmwareTable failed.
> I> There has been a failure.
> //----- </snip> -----
>
> I follow the error message and go take a look at
> acpica-unix-20060317/tables/tbget.c
>
> the error message comes from a switch statement on
> Address->PointerType for which there are 3 handled cases:
> ACPI_PHYSMODE_PHYSPTR
> ACPI_LOGMODE_LOGPTR
> ACPI_LOGMODE_PHYSPTR
>
> I should be executing the ACPI_PHYSMODE_PHYSMODE branch..
> since OsGetRootPointer returns a PHYSICAL_POINTER & I specified
> ACPI_PHYSICAL_ADDRESSING when I called AcpiGetFirmwareTable
>
> does anyone know what's going wrong here?
> Thanks,
>
> //--------------------------------
> Joel Bretz
> Hardware Engineer
> Hewlett Packard, Systems VLSI Lab
> email: joel.bretz@xxxxxx
> //--------------------------------
>
>
>
> On Tue, 2006-05-16 at 14:38 -0700, Moore, Robert wrote:
> > This is the interface that you want to use:
> >
> > ACPI_STATUS
> > AcpiGetFirmwareTable (
> > ACPI_STRING Signature,
> > UINT32 Instance,
> > UINT32 Flags,
> > ACPI_TABLE_HEADER **TablePointer)
> >
> >
> > Also, we recently added support for DBGP in the table headers
> >
> >
> >
> > > -----Original Message-----
> > > From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi-
> > > owner@xxxxxxxxxxxxxxx] On Behalf Of Joel Bretz
> > > Sent: Tuesday, May 16, 2006 2:23 PM
> > > To: linux-acpi@xxxxxxxxxxxxxxx
> > > Subject: AcpiGetTable( ? )
> > >
> > > Hi,
> > > I need some information that lives in the DBGP and the HPET Tables.. I
> > > don't see a way that I can get either of those tables.
> > >
> > > I'm guessing that
> > > AcpiGetTable(ACPI_TABLE_TYPE,UINT32,ACPI_BUFFER*)
> > > provides the functionality that I need, but I can not find the correct
> > > table types for either of those.
> > >
> > > I'm using a slightly older version of acpica (acpica-unix-20060317),
> > but
> > > I didn't see entries for
> > > ACPI_TABLE_DGBP or ACPI_TABLE_HPET
> > > in actypes.h in the latest version either...
> > >
> > > Is there a way that I can get the information from these 2 tables?
> > >
> > > Thanks,
> > > Joel
> > >
> > > //--------------------------------
> > > Joel Bretz
> > > Hardware Engineer
> > > Hewlett Packard, Systems VLSI Lab
> > > email: joel.bretz@xxxxxx
> > > //--------------------------------
> > >
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