Re: rt2x00: Ralink RT5572 very high peak current consumption

[Andreas Hartmann <andihartmann@01019freenet.de>]

Matthias Fend wrote:

[...]

> I found out that the discovered high current peaks are somehow related to invalidated beacons.
> Usually I can see 1 block with a normal tx-condition current followed by 7 additional blocks with high current peaks.
> For a test I copied the beacon data from HW_BEACON_BASE0 to HW_BEACON_BASE2 and then the first and the third beacon block have normal current values while the others still generate high current peaks
> 
> It seems that setting all five words of the TXWI at the beacon base does not complete disable the generation of this beacon.
> If I modify the TXIW_W0 of the disabled beacons to 0x40000000 (set TXWI_W0_PHYMODE as in the really used beacon) then the current consumption does not exceed the usual value. But it seems that there is still a short activity for this beacon which, in my opinion, should not be the case.
> 
> So, currently I'm wondering about two things:
> -)How do I completely turn off unused beacons (from the measurements with the windows setup I know that this should be somehow possible)?
> -)Where is the real address of HW_BEACON_BASE6 and HW_BEACON_BASE7? Modifying registers at the address of the appropriate defines (0x5dc0, 0x5bc0) does not change anything at all.

Container 13_UExxF68xx.zip on
http://opensource.samsung.com/reception/receptionSub.do?method=sub&sub=T&menu_item=tv_n_video&classification1=tv

seems to contain a complete Ralink vendor AP driver. I would take a look
there.


Andreas