Commit Graph

183 Commits

Author SHA1 Message Date
Nick Kossifidis c87cdfd270 ath5k: Make some changes to follow register dumps.
Make some changes which mimic what we see in register dumps.
This patch does not add a helper to ath5k_hw_reset(). It
does seem clear we need a re-shuffle around ath5k_hw_reset()
though as code in there is lengthy and already hitting 80-char
limit. This can be dealt with later though.

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07 16:02:58 -05:00
Nick Kossifidis 56c9054f16 ath5k: Fixes for PCI-E cards
* Fix nic_wakeup for PCI-E chips (don't set AR5K_RESET_CTL_PCI bit)

 * Fix dma size setting for PCI-E chips (thanx to Bob Copeland).

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07 16:02:58 -05:00
Nick Kossifidis 74693a7f30 ath5k: Remove RF5413 from rf gain optimization functions
* Since RF2413 it seems that RF_BUFFER settings are different (notice
that the last part -"bank 7" or whatever- is smaller than in 5111/5112).
So until we know what's going on we assume there is no gain optimization
stuff in post-5112 chips.

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07 16:02:58 -05:00
Nick Kossifidis 903b474efa ath5k: more RF2413 stuff
* Add AR5K_RF2413 to radio check during hw_reset so it doesn't complain

 * Write ah_phy_spending value we set during attach instead of checking
each time for radio revision

 * Skip txpower setup for RF2413 because it can't transmit with it
(weird thing is that RF5413 has no problem with it).

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07 16:02:58 -05:00
Nick Kossifidis 0af2256319 ath5k: Identify RF2413 and deal with PHY_SPENDING
* Attach RF2413.

 * Propertly handle different AR5K_PHY_SPENDING settings for each RF
chip by adding a field in ath5k_hw. This way we won't have to check
inside hw_reset (see next patch).

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07 16:02:58 -05:00
Nick Kossifidis f714dd6d45 ath5k: Add RF2413 initial settings
* Add initial settings for RF2413

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07 16:02:57 -05:00
Nick Kossifidis 8daeef9717 ath5k: Add RF2413 srev values
* Add RF2413 srev values and a new entry on ath5k_radio enum for it
  since it differs from RF5413 (it's not like 5112-2112).

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07 16:02:57 -05:00
Pavel Roskin 38c07b430b ath5k: fix all endian issues reported by sparse
Changes-licensed-under: ISC
Signed-off-by: Pavel Roskin <proski@gnu.org>
Acked-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:41:56 -05:00
Jiri Slaby 6cd74e3b99 WDEV: ath5k, typecheck on nonDEBUG
At least type check the ATH5K_TRACE paramter on !ATH5K_DEBUG configs.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Acked-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:37:11 -05:00
Luis R. Rodriguez e71c9fac31 ath5k/phy.c: fix negative array index
Author: Adrian Bunk <bunk@kernel.org>

This patch fixes a negative array index spotted by the Coverity checker.

Changes-licensed-under: ISC

Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:19:38 -05:00
Luis R. Rodriguez 6844e63a94 ath5k: Use software encryption for now
Hardware encryption doesn't work yet so lets use software
encryption for now.

Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:19:38 -05:00
Luis R. Rodriguez b446197cc1 ath5k: Port debug.c over to the new band API and enable as build option
This patch finishes the port and enables debug as an build option.
This was tested on:

Atheros AR5213A chip found (MAC: 0x59, PHY: 0x43)
RF5112A multiband radio found (0x36)

Note:

For 2 GHz band on the above card I noticed we get negative channel
numbers. Will look into this unless someone beats me to it.

Example out put when loading using:

sudo modprobe ath5k debug=0x00000400

 Band 2 GHz: channels 26, rates 12
  channels:
     1 2412 00c0 0000
     2 2417 00c0 0000
     3 2422 00c0 0000
     4 2427 00c0 0000
     5 2432 00c0 0000
     6 2437 00c0 0000
     7 2442 00c0 0000
     8 2447 00c0 0000
     9 2452 00c0 0000
    10 2457 00c0 0000
    11 2462 00c0 0000
    12 2467 00c0 0000
    13 2472 00c0 0000
    14 2484 00c0 0000
   -498 2512 00c0 0000
   -494 2532 00c0 0000
   -490 2552 00c0 0000
   -486 2572 00c0 0000
   -482 2592 00c0 0000
   -478 2612 00c0 0000
   -474 2632 00c0 0000
   -470 2652 00c0 0000
   -466 2672 00c0 0000
   -462 2692 00c0 0000
   -458 2712 00c0 0000
   -454 2732 00c0 0000
 Band 5 GHz: channels 194, rates 8
  channels:
    27 5135 0140 0000
    28 5140 0140 0000
[... etc ]
   219 6095 0140 0000
   220 6100 0140 0000
  rates:
     60 000b 0000 0000
     90 000f 0000 0000
    120 000a 0000 0000
    180 000e 0000 0000
    240 0009 0000 0000
    360 000d 0000 0000
    480 0008 0000 0000
    540 000c 0000 0000

Changes to base.c, base.h
Changes-licensed-under: 3-Clause-BSD

Changes to debug.c, debug.h
Changes-licensed-under: GPL

Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:19:37 -05:00
Luis R. Rodriguez e9ddc0f25c ath5k: Use our own Kconfig file, we'll be expanding this shortly
Apologoes, this is a re-post of patch-04, forgot to git-add
our Kconfig... New series (only 2 patches needed fixing, which
I am reposting) can be found here:

http://kernel.org/pub/linux/kernel/people/mcgrof/patches/ath5k/2008-02-04.v2/

Use our own Kconfig file, we'll be expanding this shortly.

Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:19:37 -05:00
Luis R. Rodriguez a3f4b914a0 ath5k: ath5k_copy_channels() was not setting the channel band
ath5k_copy_channels() wasn't setting the channel's band so all
driver channels had a 2GHz band set. Lets set this.

Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:19:37 -05:00
Luis R. Rodriguez 400ec45a02 ath5k: Cleanup after API changes
Cleanup after API changes patch (checkpatch.pl stuff) and on
ath5k_hw_channel() make use of the existing ath5k_channel_ok()
instead of re-implementing the checks again. This was necessary
to make the code cleaner and fit the 80-chars wide limit so
sending it within the same patch.

Finally make a note that we *may* eventually move cap_range stuff
to struct wiphy (band frequency range capabilities). This
information can later be exported to userspace, for example,
and giving it access to mac80211 and drivers in general can come
in handy.

Changes to initvals.c, phy.c
Changes-licensed-under: ISC

Changes to ath5k.h, base.c
Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:19:37 -05:00
Luis R. Rodriguez d8ee398d18 ath5k: Port to new bitrate/channel API
Author: Nick Kossifidis <mickflemm@gmail.com>

Tested on 5211, 5213+5112, 5213A+2112A and it wors fine.

Also i figured out a way to process rate vallue found
on status descriptors, it's still buggy but we are getting
closer (i think it improved stability a little).

Changes to hw.c, initvals.c, phy.c
Changes-licensed-under: ISC

Changes to ath5k.h, base.c, base.h
Changes-licensed-under: 3-Clause-BSD

Acked-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29 15:19:35 -05:00
David Miller 04f93a87a2 ath5k: Fix build warnings on some 64-bit platforms.
'u64' is not necessarily 'unsigned long long'

drivers/net/wireless/ath5k/base.c: In function 'ath5k_beacon_update_timers':
drivers/net/wireless/ath5k/base.c:2130: warning: format '%llx' expects type 'long long unsigned int', but argument 4 has type 'u64'
drivers/net/wireless/ath5k/base.c:2130: warning: format '%llx' expects type 'long long unsigned int', but argument 5 has type 'u64'
drivers/net/wireless/ath5k/base.c: In function 'ath5k_intr':
drivers/net/wireless/ath5k/base.c:2391: warning: format '%llx' expects type 'long long unsigned int', but argument 6 has type 'u64'

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-20 20:11:48 -05:00
Jiri Slaby b988763857 WDEV, ath5k, don't return int from bool function
sparse sees int -> bool cast as an error:
hw.c:3754:10: warning: cast truncates bits from constant value (ffffffea becomes 0)
Fix it by converting the rettype to int and check appropriately.

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>
2008-02-20 20:11:48 -05:00
Jiri Slaby 65872e6b43 WDEV: ath5k, fix lock imbalance
Omitted lock causes sparse warning
drivers/net/wireless/ath5k/base.c:1682:1: warning: context imbalance in 'ath5k_tasklet_rx' - different lock contexts for basic block

Add the lock to the guilty fail path.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Cc: Luis R. Rodriguez <mcgrof@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-20 20:11:48 -05:00
Bruno Randolf 281c56dd27 ath5k: correct padding in tx descriptors
when setting up the tx descriptors for the hardware we must account for any
padding between the header and the data we might have added previously. frame
len is the length of the frame in the air (including FCS but no padding) and
buffer len is the length of the buffer (including padding, but without FCS).

changing the way ah_setup_tx_desc is called: now excluding the FCS, since it's
easier to add that in the function where we need it.

before this fix we sent trailing zero bytes after the packet (because frame len
included the padding) which was not a big problem without WEP, but with WEP
this resultes in a wrong WEP checksum and the packet is discarded - which is
how i noticed at all ;)

an easy way to run into header padding problems, btw, is to connect to a QoS
(WME) enabled access point (eg. madwifi) - QoS data frames are 2 byte longer
and will require padding.

this patch applies on top of luis latest patch series from 04.02.2008.

drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD
drivers/net/wireless/ath5k/hw.c:        Changes-licensed-under: ISC

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-15 13:44:17 -05:00
John W. Linville 04a9e451fd ath5k: fix section mismatch warning
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-01 16:15:50 -05:00
Bruno Randolf be9b72590c ath5k: debug level improvements
* use only one debug level for beacon debugging: unify ATH5K_DEBUG_BEACON and
ATH5K_DEBUG_BEACON_PROC.

* remove debug level ATH5K_DEBUG_FATAL. doesn't make sense as a debug level -
if it's fatal it should be logged as an error.

* fancier printing of debug levels. cat /debugfs/ath5k/phy0/debug.

* allow debug levels to be changed by echoing their name into
/debugfs/ath5k/phy0/debug. this will toggle the state, when it was off it will
be turned on and vice versa.

* use copy_from_user() when reading from the debug files. use unsigned int for
better optimization. reduce buffer sizes on stack.

drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD
drivers/net/wireless/ath5k/debug.c:     Changes-licensed-under: GPL
drivers/net/wireless/ath5k/debug.h:     Changes-licensed-under: GPL

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Acked-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31 19:26:35 -08:00
Bruno Randolf c0e1899bdb ath5k: always extend rx timestamp with tsf
always extend the rx timestamp with the local TSF, since this information is
also needed for proper IBSS merging. this is done in the tasklet for now, maybe
has to be moved to the interrupt handler like in madwifi.

drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:54 -08:00
Bruno Randolf 6d91e1d808 ath5k: configure backoff for IBSS beacon queue
in "11.1.2.2 Beacon generation in an IBSS" the IEEE802.11 standard says, each
STA should... "b) Calculate a random delay uniformly distributed in the range
between zero and twice aCWmin × aSlotTime,".

configure cwmin and cwmax of the beacon queue in IBSS mode according to this.
unfortunately beacon backoff does not work reliably yet, so i suspect we have a
problem somewhere else, since the same settings (and similar beacon timer
configuration) work for madwifi.

drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:53 -08:00
Bruno Randolf 036cd1ec03 ath5k: use SWBA to detect IBSS HW merges
use SWBA (software beacon alert) interrupts to keep track of the next beacon
time und check if a HW merge (automatic TSF update) has happened on every
received beacon with the same BSSID.

this is necessary because the atheros hardware will silently update the local
TSF in IBSS mode, but not its beacon timers. if the TSF is ahead of the beacon
timers no beacons are sent until the timers wrap around (typically after about
1 minute).

this solution is not very nice, since we have to look into every beacon, but
there is apparently no other way to detect HW merges.

drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD
drivers/net/wireless/ath5k/base.h:      Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:52 -08:00
Bruno Randolf 9804b98d57 ath5k: better beacon timer calculation
update ath5k_beacon_update_timers() for better beacon timer calculation in a
variety of situations. most important is the possibility to call it with the
timestamp of a received beacon, when we detected that a HW merge has happened
and we need to reconfigure the beacon timers based on that.

we call this from the mac80211 callback reset_tsf now instead of beacon_update,
and there will be more use of it in the next patch.

drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:51 -08:00
Bruno Randolf e535c1ac7e ath5k: beacon interval is in TU
the beacon interval is passed by mac80211 in TU already, so we can directly use
it without conversion. also update the comments about TU (1 TU is defined by
802.11 as 1024usec).

drivers/net/wireless/ath5k/ath5k.h:     Changes-licensed-under: ISC
drivers/net/wireless/ath5k/base.c:      Changes-licensed-under: 3-Clause-BSD
drivers/net/wireless/ath5k/base.h:      Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:50 -08:00
Bruno Randolf 1008e0f7b9 ath5k: use 3 instead of 0x00000003
reviewed beacon timer initialization with register traces from madwifi: what we
are doing is correct :). one minor fix: use 3 instead of 0x00000003 - it's more
readable.

drivers/net/wireless/ath5k/hw.c:        Changes-licensed-under: ISC

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:50 -08:00
John W. Linville 247ae44920 ath5k: reset key cache after resume
Otherwise it may be impossible to connected to an open network after a
resume.

This is a modified version of an original patch by
Alex Eskin <alexeskin@yahoo.com>:

	https://bugzilla.redhat.com/show_bug.cgi?id=425950#c8

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:48 -08:00
John W. Linville c65638a72c ath5k: use AR5K_KEYTABLE_SIZE when initializing key table
...instead of using AR5K_KEYCACHE_SIZE, which would seem to be a
typo/thinko...

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:47 -08:00
Luis R. Rodriguez 132127e505 ath5k: Fix frame duration oops
This patch fixes an oops which was introduced as a regression by
commit fd640775bd16e1df50c867cc547af0, on the patch titled,
"mac80211: dont use interface indices in drivers".

ieee80211_generic_frame_duration() now relies on sdata->flags which
itself gets set upon bringing the interface up. We check for the
virtual interface now before setting the rate duration registers.

After the mode changes are introduced onto mac80211 we should revisit
these changes.

This patch was tested on the following cards:

1) BG card:

Atheros AR5213A chip found (MAC: 0x59, PHY: 0x43)
RF2112A 2GHz radio found (0x46)

2) ABG card:

Atheros AR5213A chip found (MAC: 0x59,PHY: 0x43)
RF5112A multiband radio found (0x36)

Signed-off-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:09:40 -08:00
Johannes Berg 32bfd35d4b mac80211: dont use interface indices in drivers
This patch gets rid of the if_id stuff where possible in favour of
a new per-virtual-interface structure "struct ieee80211_vif". This
structure is located at the end of the per-interface structure and
contains a variable length driver-use data area.

This has two advantages:
 * removes the need to look up interfaces by if_id, this is better
   for working with network namespaces and performance
 * allows drivers to store and retrieve per-interface data without
   having to allocate own lists/hash tables

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:09:36 -08:00
Jiri Slaby fa1c114fda [PATCH] Net: add ath5k wireless driver
add ath5k wireless driver

Portions of this driver are covered by one or both of the ISC and
3-clause BSD licenses.  Specific license information is cited at the top
of each file.

Acked-by and Signed-off-by information is collected from individual
patches as collected in the wireless-2.6 tree prior to upstream
submission.

Acked-by: Matthew W. S. Bell  <mentor@madwifi.org>
Acked-by: Michael Taylor <mike.taylor@apprion.com>
Acked-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bradley M. Kuhn <bkuhn@softwarefreedom.org>
Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Francesco Gringoli <francesco.gringoli@ing.unibs.it>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Karen Sandler <karen@softwarefreedom.org>
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Luis R. Rodriguez <mcgrof@gmail.com>
Signed-off-by: Matt Norwood <norwood@softwarefreedom.org>
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Richard Fontana <fontana@softwarefreedom.org>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Ulrich Meis <meis@nets.rwth-aachen.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:09:35 -08:00