On 04/11/12 13:00, Marco Porsch wrote:
On 03/16/12 23:09, Marco Porsch wrote:
On Fri, Mar 16, 2012 at 10:42:02AM +0100, Marco Porsch wrote:
I am trying to implement the IEEE 802.11s power save schemes in mac80211.
I did some hacking and can now answer part one of my question:
yes, beaconing and power save are not mutually exclusive with ath9k.
Second question: what about power save doze and waking up for _multiple_
neighbors' beacons?
I've again done some hacking: now waking up for multiple neighbor
beacons in mesh mode seems to work experimentally [1].
Next step is the mesh awake window i.e. just keep awake for a specified
time after beacon TX.
Is it possible to configure the hardware accordingly?
There are some settings concerning ad-hoc's ATIM window in
ath9k_hw_beaconinit that look like it should be possible to use hardware
timers for that. Unfortunately, I had no success on these. Maybe it
requires ATIM frames (-> AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY)?
Regards,
Marco
[1]
I maintain a list of wakeup events stored as ath9k_beacon_state. When
doing ath9k_ps_restore, I re-configure the hardware with a slightly
modified version of ath9k_hw_set_sta_beacon_timers to expect the next
wakeup event.
Actually seems to work.
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
