On Monday 21 January 2008 12:28, Graham Adams wrote:
> On 1/19/08, Len Brown <lenb@xxxxxxxxxx> wrote:
> >
> > > Please find attached the output of dmidecode after booting with
> > > acpi_osi=!Linux as requested in dmesg output. The system seems to be
> > > working OK apart from problems with STAC9221 Line In (which has never
> > > worked under Linux).
> >
> > > The system is a Dell Dimension 5150.
> >
> > > System Information
> > > Manufacturer: Dell Inc.
> > > Product Name: Dell DM051
> > > Version: Not Specified
> > > Serial Number: 6X8B32J
> > > UUID: 44454C4C-5800-1038-8042-B6C04F33324A
> > > Wake-up Type: Power Switch
> > >
> > > Handle 0x0200, DMI type 2, 8 bytes
> > > Base Board Information
> > > Manufacturer: Dell Inc.
> > > Product Name: 0WG261
This is "different"....
some magic happens at initialization and at wake from suspend-to-disk
to PCI device 00:1d -- which is apparently USB.
The code reads as if Dell really did intend to do something special for Linux -
at least the version of Linux they were testing...
for non-Linux, ISLI does some SMI magic, for Linux the SMI magic is skipped.
Does USB work properly in both cases, both before and after suspend to disk?
thanks,
-Len
Method (ISLI, 0, NotSerialized)
{
If (CondRefOf (_OSI, Local0))
{
If (_OSI ("Linux"))
{
Return (One)
}
Else
{
Return (Zero)
}
}
Else
{
Return (Zero)
}
}
...
Method (GUSB, 0, NotSerialized)
{
If (ISLI ()) # the only reference to ISLI is this one
{
Return (Zero)
# return valie of GUSB is ignored,
# so this is the NO-OP path
}
Else
{
Return (SMI2 (0xBA))
}
}
...
# surely this is SMI command/SMI Data method:
# no telling what the actual command 0xBA is, though...
Method (SMI2, 1, NotSerialized)
{
Acquire (SMIM, 0xFFFF)
Store (Arg0, SMIC)
Store (SMIC, Local0)
Store (SMID, Local0)
ShiftLeft (Local0, 0x08, Local0)
Add (SMIC, Local0, Local0)
Release (SMIM)
Return (Local0)
}
...
Method (_WAK, 1, NotSerialized)
{
If (LEqual (Arg0, 0x04))
{
# we come here on wakeup from suspend-to-disk
GUSB ()
}
If (Or (And (PMS2, One), Or (And (LNot (HACK ()),
And (GLBT, 0x11)), And (LNot (HACK ()), And (THRP, 0x18
)))))
{
Notify (\_SB.VBTN, 0x02)
}
Return (Zero)
}
...
Scope (_SB.PCI0)
{
Device (USB0)
{
Name (_ADR, 0x001D0000)
Name (_UID, 0x05)
Name (_PRW, Package (0x02)
{
0x03,
0x03
})
OperationRegion (UPC1, PCI_Config, 0xC1, One)
Field (UPC1, ByteAcc, NoLock, Preserve)
{
LEGK, 8
}
Method (_INI, 0, NotSerialized)
{
If (HACK ()) {}
Else
{
Store (LEGK, Local0)
And (Local0, 0x60, Local0)
Or (Local0, 0x20, Local0)
Store (Local0, LEGK)
}
GUSB ()
}
...
This is different too....
Method (_INI, 0, NotSerialized)
{
If (CondRefOf (_OSI, Local0))
{
If (_OSI ("Windows 2001"))
{
Store (0x04, MSOS)
# yes, Linux does come here
# MSOS is effectively "XP" or newer
}
}
}
...
Method (HACK, 0, NotSerialized)
{
If (LEqual (MSOS, 0x04))
{
Store (CMRD (0x6F), Local0)
Or (Local0, 0x04, Local0)
CMWR (0x6F, Local0)
# Linux come shere b/c of OSI(Microsoft Windows 2001)
Return (One)
}
Else
{
Store (CMRD (0x6F), Local0)
And (Local0, 0xFB, Local0)
CMWR (0x6F, Local0)
}
Add (SizeOf (_OS), One, Local0)
Store (Local0, Local1)
Name (BUF0, Buffer (Local0) {})
Name (BUF1, Buffer (Local0) {})
Name (OSNT, One)
Name (OS98, One)
Store (_OS, BUF0)
Store ("Microsoft Windows NT", BUF1)
While (Local0)
{
# an in-line strcmp()...
Decrement (Local0)
If (LEqual (DerefOf (Index (BUF0, Local0)), DerefOf (Index (BUF1,
Local0)))) {}
Else
{
Store (Zero, OSNT)
}
}
If (OSNT)
{
Store (0x03, MSOS)
Return (One)
}
Else
{
Store ("Microsoft Windows", BUF1)
While (Local1)
{
Decrement (Local1)
If (LEqual (DerefOf (Index (BUF0, Local1)), DerefOf (Index (BUF1,
Local1)))) {}
Else
{
Store (Zero, OS98)
}
}
If (OS98)
{
Store (One, MSOS)
Return (Zero)
}
Else
{
Store (0x02, MSOS)
Return (Zero)
}
}
}
-
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