Commit Graph

23 Commits

Author SHA1 Message Date
Kalle Valo fe348cb628 at76c50x-usb: set firmware and hardware version in wiphy
Set firmware and hardware version in wiphy so that user space can access
it.

(Modification from original in favor of cfg80211 ethtool support. -- JWL)

Cc: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:46 -04:00
Johannes Berg f424afa178 mac80211: remove deprecated API
All but two drivers have now stopped using the two
deprecated members radio_enabled and beacon_int,
so it's about time to remove them for good.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:35:58 -04:00
Johannes Berg 3ac64beecd mac80211: allow configure_filter callback to sleep
Over time, a whole bunch of drivers have come up
with their own scheme to delay the configure_filter
operation to a workqueue. To be able to simplify
things, allow configure_filter to sleep, and add
a new prepare_multicast callback that drivers that
need the multicast address list implement. This new
callback must be atomic, but most drivers either
don't care or just calculate a hash which can be
done atomically and then uploaded to the hardware
non-atomically.

A cursory look suggests that at76c50x-usb, ar9170,
mwl8k (which is actually very broken now), rt2x00,
wl1251, wl1271 and zd1211 should make use of this
new capability.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:35:58 -04:00
Luis R. Rodriguez 42935ecaf4 mac80211: redefine usage of the mac80211 workqueue
The mac80211 workqueue exists to enable mac80211 and drivers
to queue their own work on a single threaded workqueue. mac80211
takes care to flush the workqueue during suspend but we never
really had requirements on drivers for how they should use
the workqueue in consideration for suspend.

We extend mac80211 to document how the mac80211 workqueue should
be used, how it should not be used and finally move raw access to
the workqueue to mac80211 only. Drivers and mac80211 use helpers
to queue work onto the mac80211 workqueue:

  * ieee80211_queue_work()
  * ieee80211_queue_delayed_work()

These helpers will now warn if mac80211 already completed its
suspend cycle and someone is trying to queue work. mac80211
flushes the mac80211 workqueue prior to suspend a few times,
but we haven't taken the care to ensure drivers won't add more
work after suspend. To help with this we add a warning when
someone tries to add work and mac80211 already completed the
suspend cycle.

Drivers should ensure they cancel any work or delayed work
in the mac80211 stop() callback.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:14 -04:00
Luis R. Rodriguez 64344d7822 at76c50x-usb: remove unneeded flush_workqueue() at usb disconnect
This driver only uses the mac80211 workqueue and mac80211 requires us to
cancel all work at driver stop. Since we now have the cancels in the right
places at stop() we really don't need to flush the mac80211 workqueue so
remove it.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:27 -04:00
Luis R. Rodriguez 9ed21d3901 at76c50x-usb: cancel scan work at stop callback
This should fix suspend as mac80211 expects all work queued
to the mac80211 workqueue to be canceled at driver stop().

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:19 -04:00
Luis R. Rodriguez ebc8ab17d6 ar76c50x-usb: cancel promisc work during mac80211 stop
We weren't ever cancelling this.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:19 -04:00
Johannes Berg f1d58c2521 mac80211: push rx status into skb->cb
Within mac80211, we often need to copy the rx status into
skb->cb. This is wasteful, as drivers could be building it
in there to start with. This patch changes the API so that
drivers are expected to pass the RX status in skb->cb, now
accessible as IEEE80211_SKB_RXCB(skb). It also updates all
drivers to pass the rx status in there, but only by making
them memcpy() it into place before the call to the receive
function (ieee80211_rx(_irqsafe)). Each driver can now be
optimised on its own schedule.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 14:57:54 -04:00
David S. Miller b2f8f7525c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/forcedeth.c
2009-06-03 02:43:41 -07:00
John W. Linville 21a4cc00e8 at76c50x-usb: avoid mutex deadlock in at76_dwork_hw_scan
http://bugzilla.kernel.org/show_bug.cgi?id=13312

at76_dwork_hw_scan holds a mutex while calling ieee80211_scan_completed,
which then calls at76_config which needs the same mutex.  This reworks
the ordering to not hold the lock while calling ieee80211_scan_completed.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-29 12:41:01 +02:00
Johannes Berg 2d0ddec5b2 mac80211: unify config_interface and bss_info_changed
The config_interface method is a little strange, it contains the
BSSID and beacon updates, while bss_info_changed contains most
other BSS information for each interface. This patch removes
config_interface and rolls all the information it previously
passed to drivers into bss_info_changed.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-06 15:14:36 -04:00
Johannes Berg 18a8365992 cfg80211: introduce scan IE limit attribute
This patch introduces a new attribute for a wiphy that tells
userspace how long the information elements added to a probe
request frame can be at most. It also updates the at76 to
advertise that it cannot support that, and, for now until I
can fix that, iwlwifi too.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22 16:54:39 -04:00
David S. Miller e5e9743bb7 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	net/core/dev.c
2009-04-21 01:32:26 -07:00
Jamie Lentin 02a9a39294 at76c50x-usb: Add device ID for OQO model 01+
Add USB device ID for OQO 01+'s internal wireless LAN

An OQO employee mentions the chip's true identity here:-
    ftp://ftp.oqo.com/unsupported/linux/OQOLinux.html

Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Acked-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-16 10:39:09 -04:00
Wei Yongjun 54cb2284dc at76c50x-usb: remove pointless conditional before kfree_skb()
Remove pointless conditional before kfree_skb().

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13 15:44:35 -07:00
Kalle Valo 2a07954b83 at76c50x-usb: use dev_name() instead of struct device.bus_id
Stephen Rothwell reported that bus_id from struct device will be removed, use
dev_name() instead.

Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:53:05 -05:00
Kalle Valo ba3907e508 at76c50x-usb: add link to the TODO list
It's easier to have the TODO list in wiki, so add a link to the list.

Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:53:01 -05:00
Jason Andryuk 1cc198fee9 at76c50x-usb: additional disconnect fixes
Additional attempts to fix Oops on disconnect, that appear to be successful.
However, some may be extraneous.

The cancel_delayed_work call is probably the most necessary.  The
device_unplugged check may not be necessary.  del_timer_sync may not
be necessary either, but the Oops I was receiving was related to
timers.  Hence the addition.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:53:01 -05:00
Jason Andryuk 5a2137ddcc at76c50x-usb: clean up DMA on stack
Cleanup dma on stack issues:

- no DMA on stack
- cleanup unclear endianness issue

Corrected version of Oliver Neukum's original patch for at76_usb.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:53:01 -05:00
Jason Andryuk deda862e69 at76c50x-usb: fix oops on disconnect
flush_workqueue needs to be called instead of the generic one and the
associated functions need to be modified to prevent re-adding
themselves to the workqueue.

The rx_tasklet is also killed in the small (?) chance it is scheduled.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:53:00 -05:00
Jason Andryuk 2ce4f9d861 at76c50x-usb: convert at76_debug to an unsigned int
at76_debug should be an unsigned int as it used as a bit field.  In
fact, modprobe fails when trying to set at76_debug's high bit.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:44 -05:00
Jason Andryuk 19e8bc7fa7 at76c50x-usb: update to latest mac80211 hw scan api
With the latest mac80211 stack, the driver needs to be updated for
cfg80211 scanning.  I based the changes off of modifications for
at76_usb found here:

http://johannes.sipsolutions.net/patches/old/all/2008-09-19-13:35/020-cfg80211-scan.patch

The trick was that max_signal also needs to be set to avoid a divide
by zero Oops.  I just guessed and used the value 100 for now.

kvalo: handpicked the change from two different patches

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:44 -05:00
Kalle Valo 1264b95146 at76c50x-usb: add driver
This is a driver for usb devices based on at76c50x chipset. This is
a mac80211 port of the original at76_usb driver.

Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:44 -05:00