Re: [SeaBIOS] [PATCH 18/20] acpi: move isa devices to separate file

[Gerd Hoffmann]

Hi,
> On second thought - maybe a better solution is to just inject the
> field definitons into _SB.PCI0.ISA and _SB.PCI0.LPC.
>
> The OperationRegion has to be in the proper device (eg, PX13), but the
> Field() can go anywhere.  So, if the PIIX dsdt code had something
> like:
>    Scope (\_SB.PCI0.ISA) {
>        Field (\_SB.PCI0.PX13.P13C, AnyAcc, NoLock, Preserve)
>        {
>             Offset(0x5f),
>            , 7,
>            LPEN, 1,         // LPT
>             Offset(0x67),
>            , 3,
>            CAEN, 1,         // COM1
>            , 3,
>            CBEN, 1,         // COM2
>        }
>    }
>
> then the isa devices could just access LPEN/CAEN/etc without requiring
> an explicit path.

Nice, thanks for the idea.

/me tried to find something like this without success before going the
macro route.

cheers,
  Gerd