This patch updates the ath5k specific entry in the debugfs to read and reset the TSF value, to allowing write it, too. This makes debugging the IBSS handling of wifi drivers _much_ easier.
Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The ath5k driver didn't use set_rts_threshold or use_cts_prot, and also
didn't check the IEEE80211_TX_RC_USE_{RTS_CTS,CTS_PROTECT} RC flags.
Tell the hardware about these so RTS/CTS will work, and so the device
will work better in mixed b/g environments.
Changes-licensed-under: 3-Clause-BSD
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
ath5k previously ignored TX_RC_SHORT_PREAMBLE and did not use
config->use_short_preamble, so the long preamble was always
used for transmitted packets.
Changes-licensed-under: 3-Clause-BSD
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
ath5k_softc->led_off hasn't been used since commit
3a078876ca, "convert LED code to use
mac80211 triggers."
Changes-licensed-under: 3-Clause-BSD
Reported-by: Tobias Doerffel <tobias.doerffel@gmail.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
mac80211 now takes down interfaces automatically during suspend
so doing it in the driver is unnecessary.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
To notice a negative keytype
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
At least one ar5211 card (GIGABYTE GN-WLMA101, 168c:0012 subsystem
1458:e800) reports itself as 11g capable which seems to be a bug in the
eeprom. initvals.c assumes that ar5211 is only 11b capable and thus refuses
to initialize this card. Hence this patch changes the probing for 11g
capabilities to discard 11g capabilities for ar5211 cards which allows this
specific card to work fine in 11b and 11a modes.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Under memory pressure, we may not be able to allocate a new skb for
new packets. If the allocation fails, ath5k_tasklet_rx will exit but
will leave a buffer in the list with a NULL skb, eventually triggering
a BUG_ON.
Extract the skb allocation from ath5k_rxbuf_setup() and change the
tasklet to allocate the next skb before accepting a packet.
Changes-licensed-under: 3-Clause-BSD
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Add mechanism for managing BIP keys (IGTK) and integrate BIP into the
TX/RX paths.
Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Sync qcu.c with legacy-hal
* Add some more comments
* Set QCU mask to save power (QCU mask controls which QCUs are attached
to each DCU, we do a 1:1 mapping)
TODO: Use max QCU from EEPROM, further sync with legacy-hal and sam's
hal and a few more minor fixes.
I think after this we are ready to implement WME on the driver
part. Anyone interested ?
Signed-Off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sanity checks against AR5K_NUM_GPIO were all broken. This doesn't
currently cause any problems since we only use the first four gpios.
Changes-licensed-under: ISC
Reported-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Add vendor ID for Foxconn and use it to set the ath5k LED gpio and
polarity for Acer branded laptops.
base.c:
Changes-licensed-under: 3-Clause-BSD
Reported-by: Maxim Levitsky <maximlevitsky@gmail.com>
Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Tested-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The set_key callback now seems rather odd, passing a MAC address
instead of a station struct, and a local address instead of a
vif struct. Change that.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Bob Copeland <me@bobcopeland.com> [ath5k]
Acked-by: Ivo van Doorn <ivdoorn@gmail.com> [rt2x00]
Acked-by: Christian Lamparter <chunkeey@web.de> [p54]
Tested-by: Kalle Valo <kalle.valo@nokia.com> [iwl3945]
Tested-by: Samuel Ortiz <samuel@sortiz.org> [iwl3945]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Don't scale power values on RF5111 EEPROMs because they get out of
bounds (power is u8, so multiplying power by 50 is too much and there
is no reason to do so -we don't do it on other chips anyway-). HAL
does it as a technique to handle 0.5 dbm steps but i believe it's not
the right thing to do and certainly not the right place to do it. We
'll work this out on interpolation code for all chips (0.5 or 0.25
steps etc) in a generic way.
Signed-Off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
*Read misc2...6 values from eeprom since we want to use them (fixes
wrong power calibration info offset on RF2413+ chips)
*Initialize num_piers to 0 for RF2413 chips (note that we read 2GHz
frequency piers while reading mode sections, we have to ignore them
-usualy they are 0xff anyway but during my tests i got a 1 on b mode
with no data- and use the newer eemap.
*Add some more comments (please forgive my poor English ;-( ) and
some minor code cleanup
*Tested on 2425 and 2112 and has the same data with ath_info (i
wrote some debug code on debug.c to print everything like ath_info
but i haven't tested it yet on 5111 and it's full of > 80 col lines,
if anyone wants to play with it let me know).
Signed-Off-by: Nick Kossifidis <mickflemm@gmail.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Should return NETDEV_TX_{OK,BUSY} instead of 0,-1 (this doesn't change
any current functionality).
Changes-licensed-under: 3-Clause-BSD
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This corrects usage of AR5K_CFG_ADHOC introduced in
"ath5k: Update PCU code". Also,
the name of the indicator is changed to AR5K_CFG_IBSS to more
accurately reflect its function. This change restores
beaconing in AP and mesh modes.
Signed-off-by: Steve Brown <sbrown@cortland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
When I review ocfs2 code, find there are 2 typos to "successfull". After
doing grep "successfull " in kernel tree, 22 typos found totally -- great
minds always think alike :)
This patch fixes all the similar typos. Thanks for Randy's ack and comments.
Signed-off-by: Coly Li <coyli@suse.de>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Vlad Yasevich <vladislav.yasevich@hp.com>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Packet length calculation (which includes frame check sequence)
should take into account whether we add a pad field or not.
Extract the calculation into a helper and use it in both places.
Changes to desc.c
Changes-licensed-under: ISC
Changes to ath5k.h, base.c
Changes-licensed-under: 3-Clause-BSD
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Padding the 802.11 header to a multiple of 4 bytes needs to be done only for
frames with a body. This fixes a bug where 2 bytes were missing in monitor
mode for ACK frames. Inspired by a patch from Jouni Malinen on ath9k.
Ref: http://bugzilla.kernel.org/show_bug.cgi?id=12101 :
Signed-off-by: Benoit Papillault <benoit.papillault@free.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fix these bugs found by sparse:
ath5k/pcu.c:1102:21: warning: restricted __le32 degrades to integer
ath5k/pcu.c:1102:13: warning: incorrect type in assignment (different base types)
ath5k/pcu.c:1102:13: expected restricted __le32 <noident>
ath5k/pcu.c:1102:13: got unsigned int
ath5k/pcu.c:1104:20: warning: restricted __le32 degrades to integer
ath5k/pcu.c:1104:13: warning: incorrect type in assignment (different base types)
ath5k/pcu.c:1104:13: expected restricted __le32 <noident>
ath5k/pcu.c:1104:13: got unsigned int
Changes-licensed-under: ISC
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
For mac revisions >= "Griffin," the hardware allows the mic tx and rx
authenticator keys to share the same cache line, whereas earlier
hardware can only store the rx. Enable the combined mic on hardware
that supports it.
Changes to ath5k.h
Changes-licensed-under: 3-Clause-BSD
Changes to attach.c, pcu.c, reg.h
Changes-licensed-under: ISC
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Status: O
With the addition of TKIP (and soon CCMP), key->alg is a more useful
guide to key type than the key length.
This patch cleans up key type assignment in ath5k_hw_set_key by
extracting it into its own function. It also replaces the separate
memcpy() calls for extracting key material into the hardware format
with a loop that works regardless of key size.
Finally, the patch removes support for WEP-128 since it is a
non-standard key length that mac80211 also doesn't use.
Changes-licensed-under: ISC
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
In some cases we would like to set the mac address without changing
the operating mode. However, Atheros cards store PCU data in the high
16 bits of the mac address register. Change ath5k_hw_set_lladdr() to
not clobber the PCU settings.
Changes-licensed-under: ISC
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch brings the ath5k eeprom parsing code in sync with the work
done on ath_info by Nick Kossifidis and integrates the missing parts
based on the code of the Atheros Legacy HAL release.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Configure the mac address in add_interface and clear it in
remove_interface so that users can change the mac address
to something other than the one in the eeprom. Also avoid
setting it at attach time so that we won't ack packets
until fully set up.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Call the ath5k pci driver struct "ath5k" too to be less
confusing in sysfs.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ath5k driver has too many interrupts per second at idle
http://bugzilla.kernel.org/show_bug.cgi?id=11749
Signed-off-by: Martin Xu <martin.xu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
http://bugzilla.kernel.org/show_bug.cgi?id=12076
Remove any write access to groups and others, only keep write permission
to its owner, usually only root user.
Reported-by: Jérôme Poulin <jeromepoulin@gmail.com>
Signed-off-by: Cheng Renquan <crquan@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Allow APs to receive beacons to detect when it needs
to use protection to update the NAV correctly on
11b stations.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
*On a previous patch i splitted AR5K_INT_TX to multiple different TX
interrupt flags for better handling but i forgot to unmask the new
TXDESC and TXEOL interrupts on ath5k_init and only left TXOK. However
for each queue we enable TXDESC and TXEOL interrupts, not TXOK so we don't
handle TX interrupts at all (because these interrupts remain masked on
PISR) and under load it results packet loss. Fix the problem by
unmasking TXDESC and TXEOL on ath5k_init.
Signed-Off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Noise floor calibration occasionally fails on Atheros hardware.
This is not fatal and can happen if there's simply too much
noise on the air. Ignoring the calibration error is the right
thing to do here, because when the error is ignored, the hardware
will still work, whereas if the error causes the driver to bail out
of a bigger configuration function and does not configure the tx
queues or the IMR (as is the case in reset.c), the hw no longer
works properly until the next reset.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Newer parts have slots at entry+64 for michael mic and can do WPA-TKIP
in hardware. The open-sourced Atheros HAL has code for accessing this
portion so now we know how where to put the key material.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This change re-enables hardware encryption for ath5k after setting up
mac80211 to handle the initialization vectors which happens to make it
work. Add a module param (nohwcrypt) to optionally turn it off.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Be sure we clear out both the mic (if applicable) and
the encryption key type.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* In set_opmode don't handle antenna settings and preserve other STA_ID1 settings
(shouldn't matter because we call it during reset but it makes things cleaner)
Also set properly AP/ADHOC indicator flag on CFG while setting AP/ADHOC modes
and always enable key search mode.
* Properly set BSSID Mask during reset (cache it and reuse it durring set_associd)
* Update beacon_init to flush pending BMISS interrupts and handle setting of adhoc
beacon ATIM policy flag for ad-hoc mode. Also set TSF to 0 to start TSF increment
on AP mode. We need to handle sleep timers for AR5212 there + add support for PCF.
* Properly clean MIC key from keytable when TKIP is used (Bob is working on set_key
function etc so i leave it for now).
Tested on AR5212 (Hainan) and AR5413 and works fine
v2 Set PISR on AR5211+ and ISR on AR5210, got to sleep more ;-)
Changes-Licensed-under: ISC
Signed-Off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
ath5k_rx_status fields rs_antenna and rs_more are u8s, but we
were setting them with bitwise ANDs of 32-bit values.
As a consequence, jumbo frames would not be discarded as intended.
Then, because the hw rate value of such frames is zero, and, since
"ath5k: rates cleanup", we do not fall back to the basic rate, such
packets would trigger the following WARN_ON:
------------[ cut here ]------------
WARNING: at net/mac80211/rx.c:2192 __ieee80211_rx+0x4d/0x57e [mac80211]()
Modules linked in: ath5k af_packet sha256_generic aes_i586 aes_generic cbc loop i915 drm binfmt_misc acpi_cpufreq fan container nls_utf8 hfsplus dm_crypt dm_mod kvm_intel kvm fuse sbp2 snd_hda_intel snd_pcm_oss snd_pcm snd_mixer_oss snd_seq_dummy snd_seq_oss arc4 joydev hid_apple ecb snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device usbhid appletouch mac80211 sky2 snd ehci_hcd ohci1394 bitrev crc32 sr_mod cdrom rtc sg uhci_hcd snd_page_alloc cfg80211 ieee1394 thermal ac battery processor button evdev unix [last unloaded: ath5k]
Pid: 0, comm: swapper Tainted: G W 2.6.28-rc2-wl #14
Call Trace:
[<c0123d1e>] warn_on_slowpath+0x41/0x5b
[<c012005d>] ? sched_debug_show+0x31e/0x9c6
[<c012489f>] ? vprintk+0x369/0x389
[<c0309539>] ? _spin_unlock_irqrestore+0x54/0x58
[<c011cd8f>] ? try_to_wake_up+0x14f/0x15a
[<f81918cb>] __ieee80211_rx+0x4d/0x57e [mac80211]
[<f828872a>] ath5k_tasklet_rx+0x5a1/0x5e4 [ath5k]
[<c013b9cd>] ? clockevents_program_event+0xd4/0xe3
[<c01283a9>] tasklet_action+0x94/0xfd
[<c0127d19>] __do_softirq+0x8c/0x13e
[<c0127e04>] do_softirq+0x39/0x55
[<c0128082>] irq_exit+0x46/0x85
[<c010576c>] do_IRQ+0x9a/0xb2
[<c010461c>] common_interrupt+0x28/0x30
[<f80e934a>] ? acpi_idle_enter_bm+0x2ad/0x31b [processor]
[<c02976bf>] cpuidle_idle_call+0x65/0x9a
[<c010262c>] cpu_idle+0x76/0xa6
[<c02fb402>] rest_init+0x62/0x64
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Unfortunately, the result was that mac80211 didn't see all the beacons
it actually wanted to see. This caused lost associations.
Hopefully we can revisit this when mac80211 is less greedy about seeing
beacons directly...
This reverts commit 063279062a.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
*Properly get/set all available ISR/IMR values and review common/uncommon bits
*Better handling of per-txq interrupts (we can now resolve what q is generating
each interrupt -this will help in debuging wme later)
*Some minor updates from legacy-hal
*Properly handle RXNOFRM and TXNOFRM interrupt masking (even when we don't set
them on IMR they keep showing up, so we disable them by zeroing AR5K_RXNOFRM
and AR5K_TXNOFRM registers). This doesn't exist on legacy-hal but i've tested
it on various cards and it works fine.
Changes-Licensed-under: ISC
Signed-Off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
A few changes to reduce checkpatch.pl errors in the ath5k driver. For
the most part, I only fixed cosmetic things, and left the actual 'code
flow' untouched (hopefully)!
Diff is against wireless-testing HEAD.
Signed-off-by: John Daiker <daikerjohn@gmail.com>
Reviewed-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
So after the previous changes we were still unhappy with how
convoluted the API is and decided to make things simpler for
everybody. This completely changes the rate control API, now
taking into account 802.11n with MCS rates and more control,
most drivers don't support that though.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch fixes mesh point operation (thanks to YanBo for pointing
out the problem): make mesh point interfaces start beaconing when
they come up and configure the RX filter in mesh mode so that mesh
beacons and action frames are received. Add mesh point to the check
in ath5k_add_interface. Tested with multiple AR5211 cards.
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This adjusts ath5k's signal quality reporting taking into
consideration received beacons at an RSSI of 35 should indicate
you can use of 54 Mbps on a single stream card (all ath5k cards)
reliably.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Add support for AP mode. This involves:
- enablement in ath5k_beacon_config -- initialize beacon timer
- add AP to the supported modes in ath5k_add_interface
- handle beacon change even for AP in ath5k_config_interface
- remove useless test for IBSS in ath5k_beacon_update
Note that it doesn't enable the AP mode for the driver. It must
be enabled by NL80211_IFTYPE_AP bit added to interface_modes.
v2:
Fixed opmode constant (IEEE80211_ to NL80211_)
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Cc: Luis R. Rodriguez <mcgrof@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This makes mac80211 notify the driver which configuration
actually changed, e.g. channel etc.
No driver changes, this is just plumbing, driver authors are
expected to act on this if they want to.
Also remove the HW CONFIG debug printk, it's incorrect, often
we configure something else.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
We were setting RX_FILTER_BEACON even after entering STA mode,
which leads to a lot of unnecessary wakeups. This should fix the
bug "Ath5k driver has too many interrupts per second at idle" at
http://bugzilla.kernel.org/show_bug.cgi?id=11749.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Take care to handle register 0xa228 exactly as in the HAL released by
Atheros. This change is required to make ath5k work again on my system
since commit 2203d6be (ath5k: Misc hw_reset updates), thus fixing a
regression in 2.6.27 and therefore hopefully eligible for inclusion into
a stable release.
v2: Only overwrite initial register values on later revisions of AR5212
chips.
v3: Use standard macros to manipulate the register.
Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
After a s2ram / resume cycle, resetting the key cache does not work
unless it is deferred until after the hardware has been reinitialised by
a call to ath5k_hw_reset(). This fixes a regression introduced by
"ath5k: fix suspend-related oops on rmmod".
Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Alina Friedrichsen