On Tue, Dec 05, 2006 at 12:30:55AM +0300, Sergey Basmanov wrote:
> Hi,
> Was looking how to get battery discharge rate on this laptop.
> This is part of DSDT:
> Name (PBST, Package (0x04)
> {
> 0x00,
> 0xFFFFFFFF,
> 0xFFFFFFFF,
> 0x2710
> })
> ...
>
> Method (_BST, 0, NotSerialized)
> {
> If (ECON)
> {
> If (\_SB.PCI0.LPCB.EC0.MBTS)
> {
> UPBS ()
> }
> Else
> {
> IVBS ()
> }
> }
> Else
> {
> IVBS ()
> }
>
> Return (PBST)
> }
> ...
> Method (UPBS, 0, NotSerialized)
> {
> Store (\_SB.PCI0.LPCB.EC0.MBRM, Local5)
> If (LNot (And (Local5, 0x8000)))
> {
> ShiftRight (Local5, 0x05, Local5)
> ShiftLeft (Local5, 0x05, Local5)
> If (LNotEqual (Local5, DerefOf (Index (PBST, 0x02))))
> {
> Store (Local5, Index (PBST, 0x02))
> }
> }
>
> Store (\_SB.PCI0.LPCB.EC0.MBCV, Index (PBST, 0x03))
> Store (\_SB.PCI0.LPCB.EC0.MBST, Index (PBST, 0x00))
> Store (\_SB.PCI0.LPCB.EC0.BA1C, BCAP)
> }
>
> and method IVBS just stores default values into PBST.
> So, I'm not familiar with iasl and rest, but if I understand right, UPBS
> method is used in case when battery connected and known to system.
> In UPBS method I don't see any code that updates PBST at 0x01
> (discharge_rate). HP support says that sensor is present in system.
> Any ideas where this sensor located and how can I get discharge rate
> visible in ACPI (kernel 2.6.18.2)?
It's likely under the embedded controller. If you give me the whole
OperationRegion() and the Field() for that one it might be possible
I could have a hint to get it.
It should be something like that:
Device (EC0)
{
...
...
OperationRegion(XXXX, EmbeddedControl, 0x00, 0xFF)
Field(XXXX, ByteAcc, ..., ...)
{
...
...
}
...
}
I'll need all the Field with the same name (here XXXX).
Or alternatively send to me the whole ASL.
Cheers,
--
Bruno Ducrot
-- Which is worse: ignorance or apathy?
-- Don't know. Don't care.
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