Commit Graph

828 Commits

Author SHA1 Message Date
Luis R. Rodriguez 76d5a9e83b ath9k: use correct hw for tx aggregation TX completion
When ath9k virtual wiphys are used the sc->hw will not always represent
the active hw, instead we need to get it from the skb->cb private
driver area. This ensures the right hw is used to find a sta for
the TX'd skb.

Cc: Jouni.Malinen <Jouni.Malinen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11 17:09:02 -05:00
Luis R. Rodriguez 68a8911615 ath9k: pass the ieee80211_hw on radio enable/disable
We use the ieee80211_hw for radio enable/disable but the wrong
structure hw was being used in consideration for virtual wiphys
as each virtual wiphy has its own ieee80211_hw struct.

Just pass the hw struct to ensure we use the right one. This should
fix the hw used and passed for radio enable/disable. This includes
the stoping / starting of the software TX queues so mac80211 doesn't
send us data for a specific virtual wiphy. ath9k already takes care
of pausing virtual wiphys and stopping the respective queues on its
own, but this should handle the idle mac80211 conf calls as well.

Cc: Jouni.Malinen <Jouni.Malinen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11 17:09:01 -05:00
Luis R. Rodriguez cee71d6c14 ath9k: use the passed ieee80211_hw on ath_rx_prepare()
this now uses the proper hw which should mean finding the
right sta when using ath9k virtual wiphy stuff. Only
advantage I see here is getting the rssi properly updated
so the 'fix' itself isn't that great, but at least this
is correct.

Cc: Jouni.Malinen <Jouni.Malinen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11 17:09:01 -05:00
Luis R. Rodriguez b4afffc0cf ath9k: simpify RX by calling ath_get_virt_hw() once
ath_get_virt_hw() is required on RX to determine for which virtual
wiphy an skb came in for. Instead of searching for the hw twice do
it only once.

Cc: Jouni.Malinen <Jouni.Malinen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11 17:09:01 -05:00
Luis R. Rodriguez 1bdf6c3bec ath9k: update hw configuration for virtual wiphys
ath9k supports its own virtual wiphys. The hardware code
relies on the ieee80211_hw for the present interface but
with recent changes introduced the common->hw was never
updated and is required for virtual wiphys.

Cc: Jouni.Malinen <Jouni.Malinen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11 17:08:59 -05:00
Luis R. Rodriguez 194b7c13b4 ath9k: fix listening to idle requests
The way idle configuration detection was implemented as
busted due to the fact that it assumed the ath9k virtual wiphy,
the aphy, would be marked as inactive if it was not used but
it turns out an aphy is always active if its the only wiphy
present. We need to distinguish between aphy activity and
idleness so we now add an idle bool for the aphy and mark
it as such based on the passed IEEE80211_CONF_CHANGE_IDLE
from mac80211.

Previous to all_wiphys_idle would never be true when using
only one device so we never really were using
IEEE80211_CONF_CHANGE_IDLE -- we never turned the radio
off or on upon IEEE80211_CONF_CHANGE_IDLE changes as radio
changes depended on all_wiphys_idle being true either to
turn the radio on or off. Since it was always false for
one device this code was doing nothing.

Cc: Jouni.Malinen <Jouni.Malinen@atheros.com>
Reported-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-11 17:08:59 -05:00
David S. Miller 2071a0084a Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-1000.c
	drivers/net/wireless/iwlwifi/iwl-6000.c
	drivers/net/wireless/iwlwifi/iwl-core.h
2009-11-11 11:38:16 -08:00
Bob Copeland 1e93bd4a13 ath5k: add LED definition for BenQ Joybook R55v
Setup the GPIOs for the BenQ Joybook netbook.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-10 16:21:14 -05:00
Bob Copeland 6f9797ae22 ath5k: add LED support for HP Compaq CQ60
Add GPIO configuration for the Compaq CQ60 laptop

Reported-by: David Dreggors <ddreggors@jumptv.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-10 16:21:13 -05:00
Bob Copeland bcfc56a8be ath5k: don't reset mcast filter when configuring the mode
We should not zero out the multicast hash when configuring
the operating mode, since a zero value means all multicast
frames will get dropped.  Also, ath5k_mode_setup() gets
called after any reset, so the hash already set up in
configure_filter() is lost.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-10 16:21:13 -05:00
David S. Miller f6d773cd4f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2009-11-09 11:17:24 -08:00
Keng-Yu Lin 77c8258ff7 ath5k: add LED support for Acer Aspire One AO751h/AO531h
Add LED support for a Foxconn AR242X module, found on
the Acer Aspire One models AO751h/AO531h

Signed-off-by: Keng-Yu Lin <keng-yu.lin@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-06 16:49:08 -05:00
David S. Miller 230f9bb701 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/usb/cdc_ether.c

All CDC ethernet devices of type USB_CLASS_COMM need to use
'&mbm_info'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 00:55:55 -08:00
Johannes Berg 5ed176e1c4 mac80211: make ieee80211_find_sta per virtual interface
Since we have a TODO item to make all station
management dependent on virtual interfaces, I
figured I'd start with pushing such a change
to drivers before more drivers start using the
ieee80211_find_sta() API with a hw pointer and
cause us grief later on.

For now continue exporting the old API in form
of ieee80211_find_sta_by_hw(), but discourage
its use strongly.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-04 18:44:48 -05:00
Luis R. Rodriguez ddcd4c0818 ath9k_hw: make ath9k_phy_modify_rx_buffer() static
To do this we reorder callers in order in which they are called.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:38 -04:00
Luis R. Rodriguez a776582861 ath9k_hw: Fix and complete force bias for AR5416
Force bias is a fix for usage of AR5416 radios on the 2.4 GHz band
for orientation sensitivity. This was only partially implemented
with the ath9k_hw_decrease_chain_power() but first -- this was being
called for all chipsets which is not correct and second -- it was
missing the actual orientation code.

We now ensure to only enable force bias only for AR5416 and BUG_ON()
on other chipsets. Although ath9k_hw_decrease_chain_power() was enabled
for newer chipsets I suspect that it never ran unless the EEPROM had
ATH9K_ANT_FIXED_A or ATH9K_ANT_FIXED_B for antenna diversity.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:38 -04:00
Luis R. Rodriguez 896ff26035 ath9k_hw: remove unused modesIndex param from ath9k_hw_write_regs()
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:38 -04:00
Luis R. Rodriguez ae478cf69e ath9k_hw: make spur mitigation a callback
This only differs between single-chip solutions and non single-chip
solutions.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:38 -04:00
Luis R. Rodriguez e16393bbb1 ath9k_hw: order phy.c code and integrate spur mitigation
This reorders phy.c routines in the order in the order in which they are used
and also moves the spur mitigation helpers for each type of chip into phy.c
as they are RF related.

This patch has no functional changes.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:37 -04:00
Luis R. Rodriguez e68a060b5d ath9k_hw: use a callback for frequency change
This avoids a branch on every channel change.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:37 -04:00
Luis R. Rodriguez 0a3b7bac67 ath9k_hw: make both analog channel change routines return int
This allows us to later define a callback for both.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:37 -04:00
Luis R. Rodriguez dc51dd5039 ath9k_hw: rename ath9k_hw_rf_free() to ath9k_hw_rf_free_ext_banks()
This clarifies this is only required for external radios.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:37 -04:00
Luis R. Rodriguez 431ba3c6dc ath9k_hw: simplify ath9k_hw_rf_alloc_ext_banks()
This is calling an allocation and checking for it, simplify
this process in a macro.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:37 -04:00
Luis R. Rodriguez 574d6b122d ath9k_hw: simplify rf attach and rename to ath9k_hw_rf_alloc_ext_banks()
ath9k_hw_rfattach() was just calling a helper and this helper was
doing nothing for single-chip devices, and for non single-chip devices
it is just allocating memory for banks to program the RF registers
at a later time. Simplify this by having the hw initialization call
the rf bank allocation directly for external radios.

Also, propagate an -ENOMEM properly now upon failure.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:37 -04:00
Luis R. Rodriguez b67b4397cf ath9k_hw: bail out early on ath9k_hw_init_rf()
We a huge branch for old hardware and nothing for newer
hardware. Instead of doing this just bail out early for
newer hardware.

This patch has no functional changes.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:37 -04:00
Luis R. Rodriguez 131d1d036a ath9k_hw: start documenting 802.11n RF anlong front ends
Document what we can about the RF analog front ends (radios)
of Atheros 802.11n devices. What should be clearer now is the
what we do for old pre AR5416 and AR5418 MAC based devices in
comparison to the modern sigle-chip 802.11n solutions.

All devices after AR9280 are single chip and require less
programming -- the RF registers no longer need to be initialized
as they all have the RF analog front end embedded together with
the MAC/BB; this includes the AR9271. Older devices such as the
ones with the AR5416 MACs (PCI) or AR5418 MACs (PCI-E) have an
external 2.4 GHz AR2133 radio or a dual band 2.4 GHz / 5 GHz
AR5133 radio. These external radios require additional programming
of the RF registers.

Clarify which parts are for what devices and which code is
shared. This patch has no functional changes.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:37 -04:00
Luis R. Rodriguez c75724d174 ath9k_hw: change the way we initialize the pll for ar9271
We adjust the core clock for ar9271 to 117 MHz; this also
requires us to adjust the baud divider based on the targetted
baud rate.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:36 -04:00
Luis R. Rodriguez 8564328d85 ath9k_hw: update register initialization/reset values for ar9271
This update the register initialization/reset values (aka initvals)
for ar9271 based on the last recommended values on 2009-06-04 by our
systems engineering team.

The changes account for:

  * Supporting ar9271 1.0 and ar9271 1.1 together, the difference
    is bb_spectral_scan_ena, for 1.0 we'll set this to 0x1.

  * Ensuring we get the correct noise floor values -115 ~ -118
    when we enable bb_enable_ant_div_lnadiv=0 and
    mc_tx_def_ant_sel=1. Previous to this we would get noise
    floor values in the range -50 ~ -80. To fix settings for
    the registers:

     - bb_ch1_xatten1_db
     - bb_ch1_xatten2_db
     - bb_ch1_xatten1_margin
     - bb_ch1_xatten2_margin
     - bb_ch1_gain_force
     - bb_ch1_xatten2_hyst_margin
     - bb_ch1_xatten1_hyst_margin
     - bb_ch1_max_oc_gain

  * 0x8120[2] mc_mic_new_location_enable is changed to 0x1. The MAC team
    suggest to set this value.

  * 0x9910[0] bb_spectral_scan_ena is changed to 0x0.
    For ar9271 1.1 we don't need to enable this bit.

Cc: Stephen Chen <Stephen.Chen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:36 -04:00
Luis R. Rodriguez 0cab6559f8 ath9k_hw: modify the rf control register for ar9271 revision 1.0
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:36 -04:00
John W. Linville 133d7c6a50 wireless: remove WLAN_80211 and WLAN_PRE80211 from Kconfig
With the WLAN_PRE80211 drivers moved to drivers/staging, this
distinction becomes unnecessary.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:50:35 -04:00
Luis R. Rodriguez 1d9c185d67 ath9k_hw: remove bogus register write on ath9k_hw_9271_pa_cal()
An extra register was being written to for PA calibration
making the hardware unresponsive, remove it. Hardware
reset should now complete fine on ar9271.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:49:19 -04:00
Luis R. Rodriguez ec11bb88f9 ath9k_hw: correct AR_PHY_SPECTRAL_SCAN register offset
We had 0x9912 but AR_PHY_SPECTRAL_SCAN is 0x9910. By using the
0x9912 we were making the hardware unresponsive. This allows us
to move forward with hardware reset on ar9271 on the ath9k_htc
driver.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:49:19 -04:00
Luis R. Rodriguez 11158472c4 ath9k_hw: add AR9271 single chip name mapping
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:49:19 -04:00
Luis R. Rodriguez f934c4d9de ath9k_hw: distinguish single-chip solutions on initial probe print
Devices with external radios have revisions which we can count on.
On single chip solutions these EEPROM values for these radio revision
also exist but are not meaningful as the radios are embedded onto the
same chip. Each single-chip device evolves together as one device.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:49:18 -04:00
Luis R. Rodriguez 2da4f01a09 ath9k_hw: move mac name and rf name helpers to hw code
These are shared between ath9k and the future ath9k_htc driver.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 16:49:18 -04:00
Luis R. Rodriguez e55ea2b152 ath9k: fix misplaced semicolon on rate control
The patch e43419f9:

	ath9k: downgrade assert in rc.c for invalid rate

downgraded an ASSERT to a WARN_ON() but also misplaced a
semicolon at the end of the second check. What this did
was force the rate control code to always return the rate
even if we should have warned about it. Since this should
not have happened anymore anyway this fix isn't critical
as the proper rate would have been returned anyway.

Cc: stable@kernel.org
Reported-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30 15:50:25 -04:00
Vivek Natarajan bd6b4442ff ath: Updates for regulatory and country codes.
Add a few new country codes and update the regulatory domain for some
countries.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:50:04 -04:00
Christian Lamparter 68676df00d ar9170: don't filter BlockACK frames
The current A-MPDU tx_status report mechanism is too inaccurate.
With this patch BlockACK frames show now up to the driver and
can be processed.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:34 -04:00
Christian Lamparter 731d6bfc2d ar9170usb: atomic pending urbs counter
This patch follows "ar9170: atomic pending A-MPDU counter"
idea and converts another critical counter to atomic_*.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:34 -04:00
Christian Lamparter 02bdf5b48a ar9170: atomic pending A-MPDU counter
A ref-counting bug emerged after testing ar9170usb's HT
implementation on a bigger SMP/SMT system without the usual
_debugging_ overhead.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:34 -04:00
Bob Copeland e5e2647fd6 ath5k: use noise calibration from madwifi hal
This updates ath5k to calibrate the noise floor similar to the
way it is done in the madwifi hal and ath9k.  Of note:

- we start NF measurement at the same time as AGC calibration,
  but do not actually read the value until the periodic (long)
  calibration
- we keep a history of the last few values read and write the
  median back to the hardware for CCA
- we do not complain if NF calibration isn't complete, instead
  we keep the last read value.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:18 -04:00
Marek Lindner e307fcf0a1 ath9k: adjust ahb callbacks to new struct layout to avoid compile errors
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:48:18 -04:00
Sujith 332c556633 ath9k: Fix TX hang poll routine
When TX is hung, the chip is reset. Ensure that
the chip is awake by using the PS wrappers.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:55 -04:00
Luis R. Rodriguez 6226811f4e ath9k_hw: run ath9k_hw_9271_pa_cal() initial calibration
The PA calibration for ar9271 ath9k_hw_9271_pa_cal() can run during
reset or initial calibration, update the PA calibration to account
for that and initialize PA calibration variables for both conditions.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:47 -04:00
Luis R. Rodriguez b57df129aa ath9k_hw: run the carrier leakage calibration fix for ar9271 as well
This is required for the ar9271 hardware as well.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27 16:47:46 -04:00
Luis R. Rodriguez af1fc67c1a ath9k: use right parameter for MODULE_PARM_DESC() for debug
Reported-by: sujith.manoharan@atheros.com
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-09 16:23:34 -04:00
Luis R. Rodriguez 536b3a7a10 ath9k: rename ath_beaconq_setup() to ath9k_hw_beaconq_setup()
And move it to hw code on mac.c where it belongs.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:53 -04:00
Luis R. Rodriguez bd96d39095 ath9k: move ath_cleanup() below helpers to avoid forward declarations
This should fix the oops which occurs during module unload
due to the dereferencig of ah upon debugfs exit.

IP: [<46412d6b>] 0x46412d6b
*pde = 00000000
Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
last sysfs file: /sys/class/power_supply/BAT0/energy_full
Modules linked in: ath9k(-) ath9k_hw mac80211 ath cfg80211 <bleh>

Pid: 3112, comm: rmmod Not tainted (2.6.32-rc2-wl #101) 9461DUU
EIP: 0060:[<46412d6b>] EFLAGS: 00010246 CPU: 0
EIP is at 0x46412d6b
EAX: f5870004 EBX: f6700d94 ECX: 00000000 EDX: c14313a7
ESI: f5870000 EDI: fb58ce70 EBP: f6661eb4 ESP: f6661ea8
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process rmmod (pid: 3112, ti=f6660000 task=f6579380 task.ti=f6660000)
Stack:
fb57e5e5 f5ca5d50 fb58ce70 f6661ebc fb58629a f6661ec8 c11b715e f5ca5da8
<0> f6661ed8 c1223d98 f5ca5da8 f5ca5ddc f6661eec c1223e6f fb58ce70 fb58ce70
<0> c14958a0 f6661f00 c1222edb fb58ce70 fb58ce70 fb58cebc f6661f1c c12243c9
Call Trace:
[<fb57e5e5>] ? ath_cleanup+0x35/0x50 [ath9k]
[<fb58629a>] ? ath_pci_remove+0x1a/0x20 [ath9k]
[<c11b715e>] ? pci_device_remove+0x1e/0x40
[<c1223d98>] ? __device_release_driver+0x58/0xa0
[<c1223e6f>] ? driver_detach+0x8f/0xa0
[<c1222edb>] ? bus_remove_driver+0x7b/0xb0
[<c12243c9>] ? driver_unregister+0x49/0x80
[<c1158cf2>] ? sysfs_remove_file+0x12/0x20
[<c11b73b5>] ? pci_unregister_driver+0x35/0x90
[<fb586172>] ? ath_pci_exit+0x12/0x20 [ath9k]
[<fb5883ec>] ? ath9k_exit+0x10/0x3d [ath9k]
[<c131971d>] ? mutex_unlock+0xd/0x10
[<c1088c0f>] ? sys_delete_module+0x16f/0x220
[<c10e3d5d>] ? do_munmap+0x23d/0x290
[<c11a629c>] ? trace_hardirqs_off_thunk+0xc/0x10
[<c11a628c>] ? trace_hardirqs_on_thunk+0xc/0x10
[<c1003b41>] ? sysenter_exit+0xf/0x1a
[<c1003b08>] ? sysenter_do_call+0x12/0x3c
Code:  Bad EIP value.
EIP: [<46412d6b>] 0x46412d6b SS:ESP 0068:f6661ea8
CR2: 0000000046412d6b
---[ end trace 847f3b05ff3dcb19 ]---

Reported-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:53 -04:00
Luis R. Rodriguez 2568835cb4 ath9k: add a helper to clean the core driver upon module unload
The core driver needs to be stopped and then as a last step the
hardware needs to be stopped and its structure free'd. We do this
by moving the core driver cleanup to a new helper ath_clean_core()
and have ath_cleanup() call it. Only as a last step does
ath_cleanup() now free the hw.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:52 -04:00
Luis R. Rodriguez 7fda166651 ath9k: add helper to un-init the hw properly
This is used in several places, ensure we do it right in all
callers by using a helper.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:51 -04:00
Luis R. Rodriguez 211f5859af ath9k: initialize hw prior to debugfs
debugfs uses the hardware for several debugfs files as such the
hardware must be initialized and available prior to its usage. The
same applies to when we free the hw structs -- free debufs file
entries prior to free'ing the hardware.

Reported-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:51 -04:00
Luis R. Rodriguez faa27fae7d ath9k: move common->debug_mask setting to ath_init_softc()
What this means is we can enable now debug prints without
requiring CONFIG_ATH9K_DEBUG.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:51 -04:00
Luis R. Rodriguez 8ce54c5a5f ath5k: enable Power-Save Polls by setting the association ID
mac80211 has long provided us the association ID. This isn't useful except
for Power-Save polling which now gets enabled. We can now poll for our
pending frames on the AP during power save.

You can review the details of Power-Save on the wireless wiki:

http://wireless.kernel.org/en/developers/Documentation/ieee80211/power-savings

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:51 -04:00
Luis R. Rodriguez a3f86bff1c ath5k: fix regression which triggers an SME join upon assoc
This fixes a regression introduced by patch titled:

"atheros: define shared bssidmask setting"

The register for the BSSID was exchanged for the bssid mask register.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:50 -04:00
Luis R. Rodriguez abba06869e ath5k: remove temporary low_id and high_id vars on ath5k_hw_set_associd()
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:50 -04:00
Luis R. Rodriguez be5d6b75e0 ath5k: simplify passed params to ath5k_hw_set_associd()
We have access to common->curbssid and common->curaid so just
use those. Note that common->curaid is always 0 so this keeps
our current behaviour of always using 0 for now. Once we fix
storing the association ID passed by mac80211 this will
require no changes here.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:50 -04:00
Luis R. Rodriguez 91b9eb8261 ath5k: fix regression introduced upon the removal of AR5K_HIGH_ID()
The trick was to add four bytes whenever this was used. There
are two places where this was missed.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:50 -04:00
Luis R. Rodriguez a72d57a862 ath5k: use ath_hw_setbssidmask() for bssid mask setting upon assoc
This should avoid future typos.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:49 -04:00
Luis R. Rodriguez eb053a037d ath5k: fix regression on setting bssid mask on association
There was a typo on the second bssid mask register.
This was caused by the patch titled:

"ath5k: use common curbssid, bssidmask and macaddr"

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:49 -04:00
Rafael J. Wysocki baee1f3caa Wireless / ath5k: Simplify suspend and resume callbacks
Simplify the suspend and resume callbacks of ath5k by converting the
driver to struct dev_pm_ops and allowing the PCI PM core to do the
PCI-specific suspend/resume handling.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:46 -04:00
Luis R. Rodriguez bc974f4a23 atheros: define a common priv struct
hw code should never use private driver data, but
sometimes we need a backpointer so just stuff it on
the common ath struct.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:42 -04:00
Luis R. Rodriguez 7976b4263c ath9k_hw: add AR9271 srev and device ID to allow hw to support ar9271
This allows for hw support to be enabled for ar9271.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:42 -04:00
Luis R. Rodriguez 3ca340381a ath9k_hw: print device ID if not supported
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:42 -04:00
Luis R. Rodriguez 7322fd1929 ath9k: move hw code to its own module
hw code for Atheros 802.11n hardware is commmon between
different chipsets. This moves this code into a separate
module, the next expected user of this code will be
the ath9k_htc module.

The ath9k/ dir is now selected by ATH9K_HW, an option which
gets selected by either ath9k or ath9k_htc, but remains
invisible for user menuconfig configuration. If either
ath9k or ath9k_htc will be compiled into the kernel
ath9k_hw will also be compiled in.

Cc: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:41 -04:00
Luis R. Rodriguez 475a6e4d39 ath9k: use common read/write ops on pci and debug code
PCI and debug code will not be shared between ath9k and
ath9k_htc, so make that code use the common read/write ops.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:41 -04:00
Senthil Balasubramanian e41f0bfcb1 ath9k: Fix bugs in handling TX power
* Get power table offset from the EEPROM instead of using
  a hardcoded value of -5 if the EEPROM rev is >= 21.
* Add support in the 4k eeprom code for tx power offset
  in case we have a 4k AR9280 implementation.
* Fix tx power accuracy at high powers.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:40 -04:00
Senthil Balasubramanian ebb90cfc32 ath9k: Advertise midband for AR5416 devices
This has to be done if the EEPROM supports FCC Midband
capability.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:40 -04:00
Senthil Balasubramanian 63a75b912b ath9k: Reduce PLL Settle time and eliminate redundant PLL calls.
Reduce PLL Settle time and eliminate redundant PLL calls. Also reduce
the LoadNF timeout from 10 msec to 250usec as the 10 msec timeout was
hit with AR9285 in some cases.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:40 -04:00
Senthil Balasubramanian 1d50a69b18 ath9k: Handle ATH9K_BEACON_RESET_TSF properly
Clearing a local variable is unnecessary.
Get rid of it.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:40 -04:00
Senthil Balasubramanian 66afad0156 ath9k: Allow PSPOLL only when the interface is configured in AP mode
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:39 -04:00
Vasanthakumar Thiagarajan 7aa0349283 ath9k: Update initvals
* Move 0xa274 and 0xa27c to the top of tx_gain table.
* Update initvals to fix random failure of noise floor calibration.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:39 -04:00
Sujith 4921be8058 ath9k: Fix RTC reset for AR5416
For AR5416 chipsets, clearing RTC_RESET_EN when setting
the chip to SLEEP mode results in high power consumption.
This patch fixes this issue by not clearing it for AR5416.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:39 -04:00
Sujith 193cd4585e ath9k: Update INI release for AR9287
If the current channel is between 2412 and 2472 MHz and if the channel is
changing to 2484 MHz, then the registers 0xa1f4, 0xa1f8 and 0xa1fc need to be
programmed to the "japan_2484" values.  Conversely, if the current channel
is 2484 MHz and if the channel is changing to one between 2412 and 2472 MHz, then
the three registers need to be programmed to the "normal" values.

This is needed for compliance with Japanese regulatory requirements.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:38 -04:00
Vivek Natarajan 0b98eaaa02 ath9k: Add Calibration checks
* Prevent divide-by-zero errors in IQ Calibration.
* Do not run temperature compensation if initPDADC or currPDADC is zero.
* Also, introduce a separate function for handling OLC for AR9287.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:38 -04:00
Joerg Albert 181af38703 ar9170: handle overflow in tsf_low register during get_tsf
ar9170_op_get_tsf: handle a carry from TSF_L into TSF_H
by reading TSF_H twice.

Signed-off-by: Joerg Albert <jal2@gmx.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:38 -04:00
Joerg Albert 7c52c07de8 ar9170: add heavy clip handling
add heavy clip handling for 2.4GHz only (similar to the vendor driver).

Signed-off-by: Joerg Albert <jal2@gmx.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:38 -04:00
Joerg Albert 90f2908d32 ar9170: fixed coding style, moved define
This patch fixes some coding style issues and moves MAX_RATE_POWER into hw.h

Signed-off-by: Joerg Albert <jal2@gmx.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:38 -04:00
Luis R. Rodriguez 2ddb5c8b87 ath9k: make ath9k_common_ops const
As noted by Jiri.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:31 -04:00
Luis R. Rodriguez 5bb1279132 atheros: move bus ops to ath_common
This is the last part to make ath9k hw code core driver agnostic.
I believe ath9k_htc can now use use the hw code unmodified.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:30 -04:00
Luis R. Rodriguez 990b70ab24 ath9k: move ATH9K_RSSI_BAD to hw.h
mac.c is now core driver independent.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:30 -04:00
Luis R. Rodriguez cfe8cba982 ath9k: clarify what hw code is and remove ath9k.h from a few files
hw code will be shared between ath9k and ath9k_htc.
Just a few more files are left to clean up, mark them as well.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:30 -04:00
Luis R. Rodriguez 9680e8a391 ath9k: remove driver ASSERT, just use BUG_ON()
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:30 -04:00
Luis R. Rodriguez e3d01bfc3e ath9k: move ATH_AMPDU_LIMIT_MAX to hw.h
This is used by hw code.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:29 -04:00
Luis R. Rodriguez 25c56eec92 ath9k: remove ath9k_ht_macmode
This is used just to determine how to program the MAC,
either for 20 MHz operation of 40 MHz so just use conf_is_ht40()

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:29 -04:00
Luis R. Rodriguez 6420014ca4 ath9k: remove ath9k 25 MHz HT40 spacing stuff
This was for supporting 25 MHz spacing for HT40, this is not used
as we use 20 MHz spacing instead for HT40 as per 802.11n. The hardware
is capable of it though so we leave the phymode definition and EEPROM
parsing for it. If some experimenter wants to work on this stuff stuff
you can add an extension enabling bool on ath_common and perhaps some
debugfs knob to enable it. Keep in mind you'll also need to update the
phymode with the AR_PHY_FC_DYN2040_EXT_CH which has been left on the
driver.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:29 -04:00
Luis R. Rodriguez 43c2761364 atheros: move tx/rx chainmask to ath_common
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:29 -04:00
Luis R. Rodriguez c46917bb53 atheros: add common debug printing
ath9k uses this for now, ath9k_htc is expected to re-use this
as well. We lave ath5k as is, but it certainly can also be
converted later.

The ath9k module parameter and debugfs entry is kept.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:29 -04:00
Luis R. Rodriguez cd9bf68960 ath9k: separate core driver and hw timer code
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:28 -04:00
Luis R. Rodriguez b002a4a950 atheros: add ieee80211_hw to ath_common
Make use of it on hw code in ath9k to avoid
using the ath9k ath_softc.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:28 -04:00
Luis R. Rodriguez 13b8155920 atheros: define shared bssidmask setting
Also make ath5k and ath9k use it, and share register definitions.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:28 -04:00
Luis R. Rodriguez e5aa847489 ath5k: define ath_common ops
Only common ath read/write ops go through the common ops.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:28 -04:00
Luis R. Rodriguez 9adca126db ath5k: allocate ath5k_hw prior to initializing hw
We can propagate better errors upon failed hw initialization,
and set up the ath_common structure for attach purposes. This
will become important once we start using the ath_common
for read/write ops.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:28 -04:00
Luis R. Rodriguez 9e4bffd233 atheros/ath9k: add common read/write ops and port ath9k to use it
In an effort to make hw code driver core agnostic read
and write operations are defined on the ath_common structure.
This patch adds that and makes ath9k use it. This allows
drivers like ath9k_htc to define its own read/write ops and
still rely on the same hw code. This also paves the way for
sharing code between ath9k/ath5k/ath9k_htc.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:27 -04:00
Luis R. Rodriguez 867633f026 ath9k: Define bus agnostic bluetooth coex prep helper
We disable ASPM when enabling bluetooth coexistance. Disabling
ASPM is a bus specific operation. In the future other buses may
support bluetooth coexistance, an example is USB. To this end
move the current routine which disables ASPM into pci.c, and declare
it the PCI bt_coex_prep() helper. Additionally, since ASPM is
a PCI-Express primitive ensure we don't ever try to muck with ASPM
registers on non PCI-express devices.

This also cleans up hw.c to not include bus specific headers or
utilities.

Cc: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Cc: Stephen Chen <stephen.chen@atheros.com>
Cc: Zhifeng Cai <zhifeng.cai@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:27 -04:00
Luis R. Rodriguez db71971848 ath5k: move ath_common to ath5k_hw
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:27 -04:00
Luis R. Rodriguez 27c51f1a34 ath9k: move ath_common to ath_hw
This ensures that we can access common on hw related code
independent of the driver core.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:26 -04:00
Luis R. Rodriguez 394317fc79 ath5k: initialize eeprom struct early on attach
This fixes this sparse warning:

  CHECK   drivers/net/wireless/ath/ath5k/attach.c
drivers/net/wireless/ath/ath5k/attach.c:288:42: warning: symbol 'ee' shadows an earlier one
drivers/net/wireless/ath/ath5k/attach.c:109:34: originally declared here

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:26 -04:00
Luis R. Rodriguez 954fecea5d ath5k: use common curbssid, bssidmask and macaddr
The ah_sta_id was really being used as the macaddr.
ath5k still does not use the association ID now passed
up by mac80211, that can be fixed later.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:26 -04:00
Luis R. Rodriguez 8c727e7086 ar9170: make use of common macaddr and curbssid
These are provided by ath_common.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:26 -04:00
Luis R. Rodriguez 1510718d0f atheros/ath9k: move macaddr, curaid, curbssid and bssidmask to common
These are common amongst ath9k and ath5k, so put them into the
common structure and make ath9k to use it. ar9170 can use macaddr,
and curbssid. We'll change ath5k and ar9170 separately.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:25 -04:00
Luis R. Rodriguez 3453ad8839 ath9k: use ath9k_hw_write_associd() on reset
Use the already provided helper instead of rewriting the code
required in place.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:25 -04:00
Luis R. Rodriguez 7664072b79 ath9k: Use ath9k_hw_setbssidmask() on reset
The same code was being implemented on reset for setting the bssidmask,
instead just use the already provided helper.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:25 -04:00
Luis R. Rodriguez f2b2143e60 ath9k: make ath9k_hw_setbssidmask() and ath9k_hw_write_associd() use ath_hw
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:25 -04:00
Luis R. Rodriguez bcd8f54a84 atheros: use get_unaligned_le*() for bssid mask setting
Historically some macro helpers have been users for this,
AR5K_LOW_ID() and AR5K_HIGH_ID(), use upstream unaligned
helpers instead. This applid to ath5k and ar9170. ath9k
already uses this.

Worth noting is ath5k uses an ah_sta_id but that is already
the MAC address combined with the associaiton ID, ah_sta_id
is really ETH_ALEN in size.

Cc: Bob Copeland <me@bobcopeland.com>
Cc: Nick Kossifidis <mick@madwifi-project.org>
Cc: Christian Lamparter <chunkeey@web.de>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:25 -04:00
Luis R. Rodriguez 17753748e1 ath: move ath_bcast_mac to common header
This is used by both ath5k and ath9k to set the first bssid mask.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:24 -04:00
Luis R. Rodriguez 9ecdef4be8 ath9k: rename driver core and hw power save helpers
ath9k_hw_setpower_nolock --> ath9k_hw_setpower()
ath9k_hw_setpower() --> ath9k_setpower()

Also change the param for ath9k_setpower() to pass the ath_softc.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:24 -04:00
Luis R. Rodriguez 8c77a5694c ath9k: move ath9k_hw_setpower() to main.c
And we make it static.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:24 -04:00
Luis R. Rodriguez 1adc93c832 ath9k: avoid usage of ath9k_hw_setpower() on hw.c
ath9k_hw_setpower() is a core driver helper with locking
protection. Locking protection should be left to the driver
core, not the hw code. Hardware code no longer contends for
locking when it needs to wake up the chip or put it to sleep.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:24 -04:00
Luis R. Rodriguez a91d75aec1 ath9k: move ath9k_ps_wakeup() and ath9k_ps_restore() to main.c
These are driver core helpers.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:24 -04:00
Luis R. Rodriguez 21526d57ad ath9k: move ps helpers onto core driver when reseting tsf
When the TSF is reset power save state is disabled and
then restored. The helpers to disable power save and restore
it use a lock provided by the driver core. Move the callers
of the helpers outside of the hw code.

We reset the TSF when mac80211 tells us and on the beacon.c
helper ath9k_hw_beaconinit() when it is made explicitly required.
Add a helper on beacon.c which will deal with ps awake/restore
if we need to reset the TSF upon ath9k_hw_beaconinit().

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:23 -04:00
Luis R. Rodriguez a36cfbca21 ath9k: rename ath_btcoex_supported() to ath9k_hw_btcoex_supported()
Also just pass the ath_hw as the parameter.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:23 -04:00
Luis R. Rodriguez 8b4fc5ba89 ath9k: move ath_btcoex_config and ath_bt_mode to btcoex.c
These are only used by btcoex.c on one routine, so stuff them
into that file.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:23 -04:00
Luis R. Rodriguez 5e19729295 ath9k: now move ath9k_hw_btcoex_set_weight() to btcoex.c
After some necessary cleanups we now move ath9k_hw_btcoex_set_weight()
to where it belongs.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:23 -04:00
Luis R. Rodriguez 269ad8120b ath9k: simplify ath_btcoex_bt_stomp()
The second argument is always the hardware bt coex struct, so
remove it, and rename the function on the path with a ath9k_ prefix.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:23 -04:00
Luis R. Rodriguez 766ec4a9a8 ath9k: rename ath_btcoex_info to ath_btcoex_hw
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:22 -04:00
Luis R. Rodriguez 46289e1e5f ath9k: rename btcoex_scheme to just scheme
btcoex_scheme is already part of a btcoex struct, its implied
this is btcoex related.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:21 -04:00
Luis R. Rodriguez 05a0b3c920 ath9k: remove unused bt_duty_cycle
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:21 -04:00
Luis R. Rodriguez e08a6ace7d ath9k: move bt_stomp_type to driver core
The bt_stomp_type defines the bt coex weight, it has a one-to-one
mapping. In the future we may want to just use the weight directly.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:21 -04:00
Luis R. Rodriguez 8c1b39547e ath9k: replaces SC_OP_BTCOEX_ENABLED with a bool
Whether or not bluetooth coex has been enabled is a hardware
state and only the hardware helpers will be able to set this.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:21 -04:00
Luis R. Rodriguez bc74bf8fc3 ath9k: split ath9k_hw_btcoex_enable() into two helpers
One for 2-wire and another for 3-wire.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:20 -04:00
Luis R. Rodriguez 75d7839f4c ath9k: move driver core helpers to main.c
Keep on btcoex.c only hardware access helpers, move the
driver core specific code to main.c. To accomplish
this we had to split ath_init_btcoex_info() into two parts,
the driver core part -- ath_init_btcoex_timer() and the hw
specific part -- ath9k_hw_init_btcoex_hw_info(). This
highlights how ath_gen_timer is part of the driver core, not
hw related, so stuff that into ath_btcoex struct.

The ath9k_hw_btcoex_init() code is now put inline on
ath_init_softc() through a switch to it easier to follow,
since we did that we can now call ath_tx_get_qnum() from
the main.c instead of btcoex.c

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:20 -04:00
Luis R. Rodriguez 7a2f0f58c8 ath9k: split bluetooth hardware coex init into two helpers
Use a helper for 2-wire and another for 3-wire.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:20 -04:00
Luis R. Rodriguez af03abecd8 ath9k: move hw specific btcoex info to ath_hw
Since we now access it via the ath_hw declare the ath_hw pointer
at the header of some routines and se it. ath9k.h no longer needs to
access btcoex.h and to adjust for this move ath_btcoex_set_weight()
into btcoex.h and instead give main.c a helper for setting initial
values upon drv_start()

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:20 -04:00
Luis R. Rodriguez 2e20250a2c ath9k: move btcoex core driver info to its own struct
There is some bluetooth coexistance data which is driver
specific, stuff that into its own structure.

Cc: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:20 -04:00
Luis R. Rodriguez 4d6b228d84 ath9k: use ath_hw for DPRINTF() and debug init/exit
DPRINTF() is used in hw specific related code, as such
ensure we don't rely on the private driver core ath_softc
struct when calling it. Drivers can then implement their
own DPRINTF() as they see fit.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07 16:39:19 -04:00
Christian Lamparter e16c1bb67a ar9170: fix bug in iq-auto calibration value calculation
This patch fixes a embarrassing bug which was introduced by:
"[PATCH] ar9170: implement frequency calibration for one-stage/openfw"

The phy_data variable initialization has to done outside the for-loop
scope. This is because the for-loop uses u32 phy_data variable more
like a 4-byte field. But in each run only a single byte is calculated.
Therefore phy_data content needs to stay the same for at least 3 more
iterations, before the complete set can be uploaded.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-29 17:25:16 -04:00
David S. Miller 8b3f6af863 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	drivers/staging/Kconfig
	drivers/staging/Makefile
	drivers/staging/cpc-usb/TODO
	drivers/staging/cpc-usb/cpc-usb_drv.c
	drivers/staging/cpc-usb/cpc.h
	drivers/staging/cpc-usb/cpc_int.h
	drivers/staging/cpc-usb/cpcusb.h
2009-09-24 15:13:11 -07:00
Vivek Natarajan b37fa870c7 ath9k: Initialize txgain and rxgain for newer AR9287 chipsets.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:54 -04:00
Sujith e31f7b96f0 ath9k: Fix RFKILL bugs
This patch fixes 2 issues in RFKILL:

* Calling wiphy_rfkill_stop_polling() in ath9k_stop
  would mean that the driver cannot report HW status
  when the radio is re-enabled. Move this to ath_detach().

* Calling ath_radio_{enable/disable} without checking the current
  state results in ath_radio_enable() being called repeatedly
  for every invocation of rfkill_poll(). This is not needed
  in any case since wiphy_rfkill_set_hw_state() would call
  ->stop() if the radio has been disabled.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:54 -04:00
Christian Lamparter fe9f6342c8 ar9170usb: add usbid for TP-Link TL-WN821N v2
This patch adds the usbid for TP-Link TL-WN821N v2.

Cc: stable@kernel.org
Reported-by: Fabian Lenz <lenz_fabian@yahoo.de>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:53 -04:00
Vivek Natarajan a3ca95fbe4 ath9k: Disable autosleep feature by default.
Autosleep needs to be disabled for AR9287 chipsets also.
Since autosleep is not used for any of the currently supported
chipsets, disable it by default and can be enabled if needed
for any of the future chipsets.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:53 -04:00
Sujith edbf51f65e ath9k: Fix regression in PA calibration
The commit "ath9k: Fix bugs in programming registers during PA CAL"
removed a REG_READ of 0x7834. This resulted in incorrect
computation of the subsequent value to be written in RF2G6.

This patch fixes the regression by re-adding the REG_READ.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Senthil Balasubramanian d865ca6c14 ath9k: Fix bug in chain handling
* This patch fixes a bug in calculating the scaled
  power for three chain chipsets.

* Also, a delay is needed after setting DAC low-power mode in
  TOP1 RF register (Top Level Register Bits).

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Vivek Natarajan 42abfbee23 ath9k: Fix AHB reset for AR9280
The commit "ath9k: Do an AHB reset before doing RTC reset"
fixed RTC reset issue for AR9280 2.0 chipsets and above.
The fix is valid for all AR9280 chipsets.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Senthil Balasubramanian ce143bb044 ath9k: Adjust the chainmasks properly
This is needed to account for the number of chains in use,
not just the number of chains present.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Vasanthakumar Thiagarajan 0a475cc6a0 ath9k: Do a full reset for AR9280
AR9280 requires a full reset during channel change and HW reset.
Currently, a fast channel change is done. This patch fixes
this bug.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Vasanthakumar Thiagarajan 9ebef7997d ath9k: Don't read NF when chip has gone through full sleep mode
NF value may be incorrect when we read it just after the chip
has gone through a full sleep mode. Reading incorrect NF values
affects RX throughput.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Vasanthakumar Thiagarajan 204d794086 ath9k: Fix rx data corruption
Setting bit 20 and 25 of 0x8344 can cause occasional rx data
corruption, clear them to fix this issue.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:51 -04:00
Sujith d8caa83967 ath9k: Fix chip wakeup issue
Waking up the chip after powering it down fails sometimes.
In this case the CPU is locked for 200ms. Reduce this
interval to 10ms to avoid excessive busy looping.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:51 -04:00
Sujith 46fe782c97 ath9k: Restore TSF after RESET
For chips requiring RTC reset, TSF has to be restored
after power on reset.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:51 -04:00
Vivek Natarajan 93b1b37f6a ath9k: Revamp PCIE workarounds
* Disable L1 state ONLY when device is in D3 mode.
* Clear bit 22 of register 0x4004.
* Handle power on/off properly

Not setting the workarounds properly resulted in the
disappearance of the card in certain cases.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:50 -04:00
Vivek Natarajan 6170cd5c72 ath9k: Set default noise floor value for AR9287
The default noise floor was never initialized for
AR9287.This patch helps in reporting the correct
RSSI for this version of chipset.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:45 -04:00
Sujith 10a01bfd4e ath9k: Fix bug in ANI channel handling
When processing MIB interrupts, OFDM and CCK error
handling routines for low RSSI values have to be invoked
only when the channel mode is 11G/11B. Since HT channels
will also fall under the bands 2Ghz/5Ghz, check appropriately.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:39 -04:00
Uwe Kleine-Koenig 3dbda77e6f trivial: fix typos "man[ae]g?ment" -> "management"
Signed-off-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-21 15:14:56 +02:00
Sujith d37b7da39d ath9k: Fix bug in ANI channel handling
When processing MIB interrupts, OFDM and CCK error
handling routines for low RSSI values have to be invoked
only when the channel mode is 11G/11B. Since HT channels
will also fall under the bands 2Ghz/5Ghz, check appropriately.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-14 14:36:03 -04:00
Vasanthakumar Thiagarajan 8c8f9ba705 ath9k: Initialize the priority gpio for BT coex 3-wire
Oops, a stupid mistake in the original patch which adds coex 3-wire
support. Bluetooth priority gpio needs to be gpio 7.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-09 11:25:27 -04:00
Vasanthakumar Thiagarajan f42cc2c290 ath9k: Get rid of the modparam btcoex_enable
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-09 11:25:26 -04:00
Vasanthakumar Thiagarajan fe12946e66 ath9k: Enable btcoex based on the subsystem id of the device
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-09 11:25:26 -04:00
Vasanthakumar Thiagarajan aeac355d23 ath9k: Store subsystem id in struct hw_version
This subsystem id will be used later to turn on the btcoex
support.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-09 11:25:25 -04:00
Vasanthakumar Thiagarajan f020979d5d ath9k: Remove unnecessary casting to u8 in pci_read_config_byte() call
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-09 11:18:59 -04:00
Vasanthakumar Thiagarajan 7b6840ab5f ath9k: Disable ASPM when btcoex is active
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-09 11:18:57 -04:00
Joerg Albert fea6734a0e ath,ar9170: implemented conformance test limit calc. for tx power
apply the conformance test limits (CTL) stored in the eeprom upon
the values calculated for the tx power (ar->power_*).

This is based on the implementation in the vendor driver
(hal/hpmain.c, line 3700 ff.) with one difference:
If any ctl mode isn't found in the eeprom, we fall back to the "lower",
legacy modes (5GHT20,11A or 2GHT20,11G,11B). Otus only did 5GHT20->11A.

Currently CTL are applied for the FCC group only.

Signed-off-by: Joerg Albert <jal2@gmx.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-08 16:31:10 -04:00
Joerg Albert 7f42c37aa6 ath,ar9170: move CTL_ defines into regd.h
The ar9170 driver needs the defines for conformance test limit groups
and cannot include regd_common.h

Signed-off-by: Joerg Albert <jal2@gmx.de>
Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-08 16:31:09 -04:00
Christian Lamparter d9c35a506e ar9170: implement frequency calibration for one-stage/openfw
This patch ports some code from the vendor driver, which is
supposed to upload the right calibration values for the
chosen frequency.

In theory, this should give a better range and throughput
for all users with the open, or one-stage firmware.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-08 16:31:05 -04:00
Sujith 8813262ea7 ath9k: Fix channelFlags for 2GHZ
CHANNEL_G has to be set for 2GHZ channels since
IS_CHAN_G() checks for this in channelFlags and not in
chanmode. To make things messier, ath9k_hw_process_ini()
checks for CHANNEL_G in chanmode and not in channelFlags.
The supreme, brain-searing fix is to set the
flag in both cases.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-08 16:31:05 -04:00
Sujith 7ea310be65 ath9k: Fix RX Filter handling for BAR
BAR frames have to be sent to mac80211 only if the
current channel is HT. Also, move the macro to
enum ath9k_rx_filter.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-08 16:31:05 -04:00
Luis R. Rodriguez fc548af877 ath9k: claim irq for ath9k, not ath for pci
ath9k ahb requests an IRQ and indicates 'ath9k' claimed it,
ath9k pci requests an IRQ and indicates 'ath'   claims it;
since 'ath' is another module sync both ahb and pci to claim
the irq using 'ath9k'.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-08 16:31:04 -04:00
Luis R. Rodriguez 580171f7cd ath9k: propagate errors on ath_init_device() and request_irq()
We've cleaned up ath_init_device() and its children enough
to pass meaninful errors back from probe. When this fails
it means our device could not be initialized and a meaninful
error will have been passed.

Do the same for request_irq() and also synchronize the error
messages while at it.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-08 16:31:04 -04:00
Luis R. Rodriguez db6be53cba ath9k: propagate ieee80211_alloc_hw() failure
The -ENOMEM was never being passed on failure.
While at it use dev_err() as ahb does upon failure.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-08 16:31:04 -04:00
Joerg Albert 5c630ce7e6 ar9170: added phy register initialisation from eeprom values
This patch adds the initialisation of some PHY registers
from the modal_header[] values in the EEPROM
(see otus/hal/hpmain.c, line 333 ff.)

Signed-off-by: Joerg Albert <jal2@gmx.de>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-08 16:31:03 -04:00
Vivek Natarajan d0bec34293 ath9k: Reconfigure beacon timers after the scan is completed.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-02 15:29:04 -04:00
Vasanthakumar Thiagarajan 8f43161aa6 ath9k: Call spin_lock_bh() on btcoex_lock
As generic hw timer interrupt handler is moved to tasklet,
we no more need to call spin_lock_irqsave().

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-01 12:48:21 -04:00
Vasanthakumar Thiagarajan ebb8e1d78c ath9k: Move generic hw timer intr handler to bottom-half
There is no point handling this in hard irq, move it to
tasklet.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-01 12:48:21 -04:00
Vasanthakumar Thiagarajan 1c29ce672f ath9k: Do an AHB reset before doing RTC reset
Doing an RTC reset when DMA is active may corrupt memory,
make sure no DMA is active at this moment by doing an
AHB reset.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-31 14:42:15 -04:00
Pavel Roskin 97a81f5c50 ath5k: don't use PCI ID to find the chip revision
AR5K_SREV is available even if the chip has been put to sleep.  Relying
on the chip register allows binding non-standard PCI IDs by

echo VENDOR_ID PRODUCT_ID >/sys/bus/pci/drivers/ath5k/new_id

without having to specify the driver data as well.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Acked-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:55 -04:00
Pavel Roskin 3b3ee43da4 ath5k: fix uninitialized value use in ath5k_eeprom_read_turbo_modes()
The `val' variable in ath5k_eeprom_read_turbo_modes() is used
uninitialized.  gcc 4.4.1 with -fno-inline-functions-called-once reports
it:

eeprom.c: In function 'ath5k_eeprom_read_turbo_modes':
eeprom.c:441: warning: 'val' may be used uninitialized in this function

Comparing the code to the Atheros HAL, it's clear that the split between
ath5k_eeprom_read_modes() and ath5k_eeprom_read_turbo_modes() was
incorrect.

The Atheros HAL reads both turbo and non-turbo data from EEPROM in one
function.  Some turbo mode parameters are derived from the same EEPROM
values as non-turbo parameters, just from different bits.

Merge ath5k_eeprom_read_turbo_modes() into ath5k_eeprom_read_modes() to
fix the warning.  The actual values and offsets have been cross-checked
against Atheros HAL.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:54 -04:00
Bob Copeland ca5efbe243 ath5k: clarify srev comparison for CCMP check
As Pavel Roskin noted, the check for mac version as copied from
legacy_hal made no sense.  This replaces it with the equivalent
and makes up a suitable #define for the mac version legacy_hal
checked.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:54 -04:00
Vasanthakumar Thiagarajan 1773912bd2 ath9k: Add Bluetooth Coexistence 3-wire support
This patch adds 3-wire bluetooth coex support for AR9285.
This support can be enabled through btcoex_enable modparam.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:51 -04:00
Vasanthakumar Thiagarajan ff155a45ce ath9k: Add infrastructure for generic hw timers
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:51 -04:00
Vasanthakumar Thiagarajan 81fa16fbe0 ath9k: Remove hw capability bit meant for btcoex
We don't need a hw cap bit for btcoex anymore as btcoex scheme type
is enough to do this.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:51 -04:00
Vasanthakumar Thiagarajan 22f25d0d5e ath9k: Determine btcoex scheme type based on chip version
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:50 -04:00
Vasanthakumar Thiagarajan f14462c666 ath9k: Move btcoex related data to a separate struct
Also define macros for wlanactive and btactive (5 & 6) gpios.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:49 -04:00
Vasanthakumar Thiagarajan 42cc41edf2 ath9k: Configure btcoex register during every reset
Make sure btcoex register configured with appropriate values
after it is initialized with the default values from initvals.h
during reset.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:49 -04:00
Vasanthakumar Thiagarajan 17d50d1df4 ath9k: Move btcoex stuff from hw.[ch] to new btcoex.[ch]
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:48 -04:00
Vasanthakumar Thiagarajan f985ad12b5 ath9k: Split ath9k_hw_btcoex_enable() into two logical pieces
This function currently does initialization + enable the
btcoex support. Split it into two logical functions which
does the above operations separately. Btcoex initialization
is done during attach time and enabling this feature is done
in start(). Also, add code to disable btcoex support in stop().

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:48 -04:00
Sujith 7cf4a2e778 ath9k: Wrap DMA dump function with PS wakeup/restore
When dumping register contents, HW has to be awake.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:48 -04:00
Sujith b264c673a0 ath9k: Update INITVALs for AR9285
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:47 -04:00
Sujith 20caf0dd41 ath9k: Handle PA cal usage properly
PA Calibration is not needed for high power solutions.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:47 -04:00
Sujith 0abb096879 ath9k: Fix bugs in programming registers during PA CAL
* First PA driver (PDPADRV1) was not powered down properly.
* Compensation capacitor for dynamic PA was programmed incorrectly.

Also, remove a stray REG_READ.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:47 -04:00
Sujith a13883b0bf ath9k: Reduce the frequency of PA offset calibration
PA calibration need not be done if the offset is not varying.
The current logic does PA calibration even if the offset is the
same.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:46 -04:00
Roel Kluin 73f57f8398 ath9k: Fix read buffer overflow
Prevent a read of powInfo[-1] in the first iteration.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:46 -04:00
Bob Copeland 1c81874078 ath5k: add hardware CCMP encyption support
Recent ath5k hardware is capable of doing CCMP acceleration.
Enable it for the cards that support it.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:44 -04:00
Bob Copeland 1c5256bb16 ath5k: use the skb->cb directly for RX status
Save a memcpy by just storing updates directly in the skb
control block.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:44 -04:00
Marcos Chaparro 09c9bae26b ath5k: add led pin configuration for compaq c700 laptop
With this patch, a compaq c700 can turn on the wifi led.
The array of compatible devices now includes the hardware
present in this computer, as well as the led pin and
polarity.

Signed-off-by: Marcos Chaparro <nitrousnrg@gmail.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:43 -04:00
Bob Copeland 56d1de0a21 ath5k: clean up filter flags setting
The maze of if() statements in configure_filter is confusing.
Reorganizing it as a switch statement makes it more apparent what
is going on and reveals several suspicious settings.  This has no
functional changes, though it does remove some redundant flags
that are set earlier.

Also now that we can sleep, protect sc->filter_flags with the
sc lock.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:43 -04:00
Joerg Albert 229a7ef7c2 ar9170: remove unnecessary call to ar9170_set_beacon_timers
Signed-off-by: Joerg Albert <jal2@gmx.de>
Acked-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:41 -04:00
Joerg Albert ea39d1a402 ar9170: cleanup of bss_info_changed and beacon config
Add beacon control by BSS_CHANGED_BEACON_ENABLED and
bss_conf->enable_beacon from mac80211.

Signed-off-by: Joerg Albert <jal2@gmx.de>
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:41 -04:00
Sujith 3d832611d7 ath9k: Fix chainmask selection during scanning
The TX/RX chainmasks were set to 1x1 during scanning.
Configure them properly with the values retrieved from
the EEPROM.

Also, this requires scan_start/scan_end callbacks to be
locked with sc->mutex.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:30 -04:00
Javier Cardona 5eb6ba83aa ath9k: Add support FIF_OTHER_BSS filtering mode.
Support for FIF_OTHER_BSS was missing.  This patch adds support for this
filtering mode which in turn resolves a problem where mesh interfaces would not
receive broadcast traffic.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28 14:40:24 -04:00
Vasanthakumar Thiagarajan 22e66a4c15 ath9k: Nuke struct ath9k_node_stats
Other than ns_avgbrssi (Average beacon rssi) no data of
ath9k_node_stats is being used anywhere. Nuke this structure
and move its only useful member to ar5416Anistate. Also cleanup
this redundant data in ath_softc.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:36:08 -04:00
Vasanthakumar Thiagarajan ff36041652 ath9k: Fix bug in retrieving average beacon rssi
Currently the beacon rssi that LPF gives is divided and rounded
up by ATH_RSSI_EP_MULTIPLIER twice. This will leave the incorrect rssi
in ANI. Having correct rssi in ANI fixes the connection stability at
< 30dB rssi range. This patch removes the unncessary computation of average
rssi over already valid average rssi. Also removes the redundant macros to
find average rssi.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:36:08 -04:00
Christian Lamparter eeef41854d ar9170: refactor configure_filter
Thanks to "mac80211: allow configure_filter callback to sleep",
we no longer have to defer the work to the workqueue.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:36:06 -04:00
Luis R. Rodriguez 608b88cb34 ath: move regulatory info into shared common structure
This moves the shared regulatory structure into the
common structure. We will use this ongoing for common
data.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:36:03 -04:00
Sujith 4c48381786 ath9k: Fix TX poll cancelling
In ath9k_stop(), tx_complete_work was being cancelled twice.
This patch fixes it. Also, locking sc->mutex should be done
at the beginning.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:36:03 -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
Vivek Natarajan 326bebbcb5 ath9k: Updates for AR9287_12 version of chipset.
Enable AsyncFIFO and AGGWEP for AR9287_12 and later revisions only.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:35:52 -04:00
Vivek Natarajan d4fe5afa00 ath9k: Fix ref power interpolation logic for AR9287 chipsets.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:35:52 -04:00
Vivek Natarajan 08fc5c1ba0 ath9k: Enable LEDs for AR9287 chipsets.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:35:52 -04:00
Vivek Natarajan d340b1f0e5 ath9k: Set AR_WA for AR9287 as it improves consistency in throughput.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:35:51 -04:00
Vivek Natarajan db91f2e4d4 ath9k: Add open loop power control support for AR9287.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20 11:35:51 -04:00
Sujith eff563cf10 ath9k: Set HW state properly
This patch fixes a bug in ath9k_stop() where the HW
was not put into FULL_SLEEP state. Not doing so will
cause issues in suspend-resume and the HW will not respond
to chip resets.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:14:09 -04:00
Sujith 523c36fc9c ath9k: Fix bug in PCI resume
This patch fixes a bug where the device was enabled
before restoring the PCI state.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:14:09 -04:00
Sujith 1cf6873a19 ath9k: Remove duplicate variables
diversity_control and antenna_switch_swap are already
present in ath9k_ops_config. Remove duplicate occurrences
in ath_hw.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:14:08 -04:00
Sujith 1aa8e84736 ath9k: Remove has_hw_phycounters
PHY counters are available in all chipsets supported
by ath9k. Remove the check.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:14:08 -04:00
Luis R. Rodriguez 2a219eb267 ath9k: update kconfig to indicate support for AR9002 family
ath9k supports the AR9002 family of chipsets. This includes
the AR9285 and the miniPCI AR9223 and AR9220 (which themselves
have AR9280+AR5133).

We now refer people to the wiki page as it seems this is not
as popular as we would have hoped.

Reported-by: JD <jd1008@gmail.com>
Cc: Dakota Lee <Dakota.Lee@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:14:08 -04:00
Luis R. Rodriguez 13311b0011 ath5k: use bit shift operators for cache line size
This matches ath9k, providing consistency when reading both drivers.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:14:06 -04:00
Luis R. Rodriguez aeb63cfd4c ath5k: use common ath.ko ath_rxbuf_alloc()
Now that its shared we can remove ath5k's own implementation.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:14:06 -04:00
Luis R. Rodriguez d15dd3e5d7 ath: add common ath_rxbuf_alloc() and make ath9k use it
Turns out ath5k and ath9k can share the same helper to
allocates RX skbs. We allocate skbs aligned to the cache line
size. This requirement seems to have come from AR5210; when
this was not done it seems sometimes we'd get bogus data. I'm
also told it may have been a performance enhancement
consideration. In the end I can't be sure we can remove this
on new hardware so just keep this and start sharing it through
ath.ko.

Make ath9k start using this, ath5k is next.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:14:05 -04:00
Nick Kossifidis 6e220662bf ath5k: Use SWI to trigger calibration
* Get rid of calibration timer, instead use a software interrupt
  to schedule the calibration tasklet.

 a) We don't need a timer for this, there is no need for accuracy
   even with round_jiffies i think this is a waste of resources.
   Also we don't need to run calibration if we are idle (no
   interrupts).

 b) When we add ANI support we 'll just extend the poll function
   and calibration tasklet and handle all periodic phy calibration
   on one place (much cleaner).

 c) Having calibration on a tasklet is better since during calibration
   we can't transmit or receive (antennas are detached to measure
   noise floor), previously calibration could run in parallel with
   tx/rx and interfere (packet loss).

 v2: kill tasklet on stop_hw, stop/wake queues
 v3: use time_is_before_eq_jiffies to compare timestamp with current
     time

Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:56 -04:00
Nick Kossifidis b55a5de114 ath5k: Preserve pcicfg bits during attach
* During attach preserve pcicfg bits when enabling pci core
   sw retry fix.

Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:56 -04:00
Nick Kossifidis edd7fc7003 ath5k: Wakeup fixes
* Don't put chip to full sleep because there are problems during
   wakeup. Instead hold MAC/Baseband on warm reset state via a new
   function ath5k_hw_on_hold.

 * Minor cleanups

Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Tested-by: Ben Greear <greearb@candelatech.com>
Tested-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:56 -04:00
Nick Kossifidis d1cb0bdac1 ath5k: Linear PCDAC code fixes
* Set correct xpd curve indices for high/low gain curves during
   rfbuffer setup on RF5112B with both calibration curves available.

 * Don't return zero min power when we have the same pcdac value
   twice because it breaks interpolation. Instead return the right
   x barrier as we do when we have equal power levels for 2 different
   pcdac values.

Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:56 -04:00
Nick Kossifidis c38e7a9348 ath5k: Check EEPROM before tweaking SERDES
* Read PCI-E infos offset from EEPROM and if it points to
   serdes section (0x40), enable serdes programming (further tweaking
   of serdes values during attach). This follows Legacy and Sam's
   HAL sources.

Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:55 -04:00
Luis R. Rodriguez af6a3fc7e7 ath9k: Fix regression on receiving PS poll frames
In the the patch:

ath9k: use new FIF_PSPOLL configure filter

I forgot to add the new FIF_PSPOLL to the supported mask.
Without this we mask out the FIF_PSPOLL flag therefore
we'd ignore it from mac80211.

Cc: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:54 -04:00
Julia Lawall 4d30d309a3 drivers/net/wireless/ath/ath5k: Change constant name
Elsewhere, the tqi_type field is compared to constants having a name
beginning with AR5K_TX_QUEUE, rather than AR5K_TX_QUEUE_ID.  I have thus
converted AR5K_TX_QUEUE_ID_CAB to AR5K_TX_QUEUE_CAB.  This does, however,
change the value, so perhaps something else was wanted.

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:51 -04:00
Sujith 5e32b1ed7e ath9k: Update beacon RSSI
ANI uses the beacon RSSI for its operation.
Update this properly.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:35 -04:00
Sujith 180d674bab ath9k: Remove local chainmask variable
The chainmask can be obtained directly from ath_hw.
Also, use a helper macro for comparing CTLs - this improves readability.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:35 -04:00
Sujith bf466fb67c ath9k: Cleanup TX power calculation for 4K chips
Write CCK power-per-rate array always and report
correct TX power to regulatory.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:35 -04:00
Sujith 7f63845f2a ath9k: Clean antenna configuration for 4K EEPROM chips
This patch revamps the antenna configuration mechanism
for 4K chips.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:35 -04:00
Sujith 066edc80eb ath9k: Add macros for Antenna Diversity
A subsequent patch would use these for configuring
antennae on AR9285.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:34 -04:00
Sujith a37414a220 ath9k: Cleanup ath9k_hw_4k_set_gain() interface
regChainOffset is always zero, remove it.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:34 -04:00
Sujith b5aec950ee ath9k: Split eeprom.c into manageable pieces
Add eeprom_def.c, eeprom_4k.c and eeprom_9287.c
This improves maintainability.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:34 -04:00
Sujith 6780ccf565 ath9k: Remove a few DEBUG mesages
We have never used these at all.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:13:15 -04:00
Sujith c16c9d0657 ath9k: Try to fix whitespace damage
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:12:48 -04:00
Sujith 54e4cec69e ath9k: Cleanup function return types
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:12:48 -04:00
Sujith 87b5bee86d ath9k: Remove unneeded assignment of protocol field
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:12:47 -04:00
Luis R. Rodriguez 63b08b8d97 ath9k: use new FIF_PSPOLL configure filter
We used to set pspoll filter on ath9k on AP mode but
we no longer need this mode specific check as mac80211
now does the check for us and informs us when we should
enable pspoll through FIF_PSPOLL.

Cc: Igor Perminov <igor.perminov@inbox.ru>
Cc: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:12:39 -04:00
Joerg Albert e30eb4ab45 ath5k: fix missing output in monitor mode after ifconfig up
Let ath5k_chan_set() always call ath5k_reset().
This fixes the bug that we don't
get any packets in monitor mode after:

ifconfig wlan0 down
iwconfig wlan0 mode monitor channel 1
ifconfig wlan0 up

but they arrive after

iwconfig wlan0 channel 2

Signed-off-by: Joerg Albert <jal2@gmx.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14 09:12:39 -04:00
David S. Miller aa11d958d1 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	arch/microblaze/include/asm/socket.h
2009-08-12 17:44:53 -07:00
Dan Carpenter e9d126cdfa ar9170: fix read & write outside array bounds
queue == __AR9170_NUM_TXQ would cause a bug on the next line.

found by Smatch ( http://repo.or.cz/w/smatch.git ).

Cc: stable@kernel.org
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-10 16:41:01 -04:00
Christian Lamparter 363ec5614f ar9170usb: fix spurious firmware related message
When ar9170-2.fw was missing, the driver erroneously complained
about missing the initialization values file ar9170-1.fw...

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-10 16:41:01 -04:00
Luis R. Rodriguez 6b4f645a49 ath9k: fix compile warning on ath9k_hw_AR9287_check_eeprom()
CC [M]  drivers/net/wireless/ath/ath9k/eeprom.o
drivers/net/wireless/ath/ath9k/eeprom.c: In function ‘ath9k_hw_AR9287_check_eeprom’:
drivers/net/wireless/ath/ath9k/eeprom.c:2866: warning: comparison of distinct pointer types lacks a cast

Cc: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:35 -04:00
Luis R. Rodriguez e48e3a2f17 ath9k: cancel xmit poll work at stop() callback
We forgot to cancel this work at the stop() callback.

------------[ cut here ]------------
WARNING: at net/mac80211/util.c:511 ieee80211_queue_delayed_work+0x3a/0x40 [mac80211]()
Hardware name: 6460DWU
queueing ieee80211 work while going to suspend
Modules linked in: <-- snip -->
Pid: 5124, comm: phy0 Tainted: G        W  2.6.31-rc3-wl #4
Call Trace:
 [<ffffffffa03adcda>] ? ieee80211_queue_delayed_work+0x3a/0x40 [mac80211]
 [<ffffffff810552b8>] warn_slowpath_common+0x78/0xd0
 [<ffffffff81055394>] warn_slowpath_fmt+0x64/0x70
 [<ffffffff814ed2c9>] ? thread_return+0x3e/0x635
 [<ffffffffa03adcda>] ieee80211_queue_delayed_work+0x3a/0x40 [mac80211]
 [<ffffffffa0297690>] ath_tx_complete_poll_work+0xc0/0x100 [ath9k]
 [<ffffffffa02975d0>] ? ath_tx_complete_poll_work+0x0/0x100 [ath9k]
 [<ffffffff81069b68>] worker_thread+0x178/0x260
 [<ffffffff8106ecc0>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff810699f0>] ? worker_thread+0x0/0x260
 [<ffffffff8106e89e>] kthread+0x9e/0xb0
 [<ffffffff8101302a>] child_rip+0xa/0x20
 [<ffffffff8106e800>] ? kthread+0x0/0xb0
 [<ffffffff81013020>] ? child_rip+0x0/0x20

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:34 -04:00
Luis R. Rodriguez d7e7d229c7 ath9k: add initial hardware support for ar9271
We will finalize this after some driver core changes, for now
we leave this unsupported.

Cc: Stephen Chen <stephen.chen@atheros.com>
Cc: Zhifeng Cai <zhifeng.cai@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:34 -04:00
Luis R. Rodriguez 670388c5f5 ath9k: add initvals and registry definitions for AR9271
Cc: Stephen Chen <stephen.chen@atheros.com>
Cc: Zhifeng Cai <zhifeng.cai@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:34 -04:00
Luis R. Rodriguez edb1f9152f ath9k: add ar9271 revision and subrevision ID helpers
These will be used later to add support for ar9271.

Cc: Stephen Chen <stephen.chen@atheros.com>
Cc: Zhifeng Cai <zhifeng.cai@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:34 -04:00
Luis R. Rodriguez 475f5989d4 ath9k: Remove _t postfix for ar9287_eeprom structure
We don't use typdefs on ath9k, remove that _t.

Cc: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:33 -04:00
Luis R. Rodriguez 39068d1c28 ath9k: remove spurious check for channel on keycache reset
ath9k_hw_keyreset() has a spurious check for ah->curchan..
remove it.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:33 -04:00
Luis R. Rodriguez 2f69ffacb3 ath9k: remove dangling error check on keycache reset on hw init
The keycache reset will not fail as right above we ensure
to set the sc->keymax to be <= ah->caps.keycache_size. Just remove
this dangling check.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:33 -04:00
Luis R. Rodriguez 95fafca26d ath9k: call ath9k_hw_detach() once upon hw init failure
If hw initialization fails (ath9k_hw_init()) on ath_init_softc()
we bail out and call ath9k_hw_detach(). The call ath9k_hw_detach()
is conditional though as ath9k_hw_init() could itself have called
ath9k_hw_detach(). Just describing this is itself a brain twister.
Avoid this nonsense by removing ath9k_hw_detach() from ath9k_hw_init().

Upon hw initialization failure we expect the callers to take care of
the cleanup.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:33 -04:00
Luis R. Rodriguez 3ce1b1a949 ath9k: set sc->sc_ah to NULL after freeing it
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:32 -04:00
Luis R. Rodriguez 9db6b6a25f ath9k: set ah to null after freeing
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:32 -04:00
Luis R. Rodriguez e70c0cfdbf ath9k: rename ath9k_hw_ani_detach() to ath9k_hw_ani_disable()
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:32 -04:00
Luis R. Rodriguez 081b35ab2e ath9k: rename ath9k_hw_rfdetach() to ath9k_hw_rf_free()
This makes it clear what this does.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:31 -04:00
Luis R. Rodriguez 6b82752905 ath9k: use helper macro to kfree and nullify on ath9k_hw_rfdetach()
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:31 -04:00
Luis R. Rodriguez 39a21951ef ath9k: remove !NULL check before kfree()
kfree(NULL) works so remove all those branches which check
for it before kfree()'ing on ath9k_hw_rfdetach().

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:31 -04:00
Luis R. Rodriguez 1e40bcfa91 ath9k: distinguish between device initialization and ath_softc init
We re-label the device driver initialization routines from the
ath_softc, the "Software Carrier" fillers. This should make it
clearer what each of these do.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:30 -04:00
Luis R. Rodriguez f637cfd6bb ath9k: describe hw initialization better
During initialization ath9k tends to use "attach" to when we
initialize hardware due to the fact we used to attach a "HAL".
The notion of a HAL is long gone, so lets just be clear on what
we are doing.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:30 -04:00
Luis R. Rodriguez aa4058aea2 ath9k: break up hw initialization into a few more helpers
This makes reading the hardware initialization process
easier to understand. The new helpers added are:

ath9k_hw_init_cal_settings()
ath9k_hw_init_mode_regs()
ath9k_hw_init_mode_gain_regs()
ath9k_hw_init_11a_eeprom_fix()

This patch has no functional changes.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:30 -04:00
Luis R. Rodriguez 08e0403a14 ath9k: remove debug message for no memoery on ath_init()
We're now propagating the -ENOMEM error so there is no need to
keep a debug message there now.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:30 -04:00
Luis R. Rodriguez b8b0f377c7 ath9k: rename ath9k_hw_set_defaults() to ath9k_hw_init_config()
This reflects better what we are actually doing there.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:29 -04:00
Luis R. Rodriguez 50aca25b58 ath9k: rename ath9k_hw_newstate() to ath9k_hw_init_defaults()
This reflects better what we are actually doing there.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:29 -04:00
Luis R. Rodriguez f9d4a66803 ath9k: move hw macrevision checker to helper
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:29 -04:00
Luis R. Rodriguez 07c10c6177 ath9k: pass only one argument to hw attach
The softc is cached and set within the ath_hw struct.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:28 -04:00
Luis R. Rodriguez ee2bb460e2 ath9k: call hw initializer directly
ath9k_hw_attach() was going first through some device id verifier,
and then calling some other helper which was doing the real hardware
initialization. Lets just do the devid checks within the real worker
by calling a helper ath9k_hw_devid_supported().

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:28 -04:00
Luis R. Rodriguez e1e2f93ffa ath9k: move cache setting of softc ah prior to attach
We do this in case attach and friends try to get back to
ah from the softc somehow.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:28 -04:00
Luis R. Rodriguez 8df5d1b773 ath9k: move devid cache setting to ath_init()
This lets us trim one argument off of hw initializer routines.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:28 -04:00
Luis R. Rodriguez 4f3acf81f2 ath9k: move memory allocation of ath_hw to ath_init()
This lets us simplify attach code and arguments passed.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:27 -04:00
Luis R. Rodriguez 7819ac84b6 ath9k: propagate hw initialization errors
We were never propagating hw initialization errors, lets
do that now and also use -EOPNOTSUPP when device revision is
not supported yet.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:27 -04:00
Luis R. Rodriguez fbf54660d1 ath9k: use a switch for revising supported hw mac revisions
This makes adding new hw revisions a one line change here.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:27 -04:00
Luis R. Rodriguez ed459c1851 ath9k: remove usage of AR_SREV_*() wrapper to detect supported hw
We will clean this up next to just use a switch.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:44:26 -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
Bob Copeland 8784d2ee92 ath5k: fix CAB queue operation
We need to process tx descriptors for all queues (currently main tx
queue and cabq) which may have triggered the TX completion interrupt.
Otherwise, the queues can get stuck after sending a few frames.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:27 -04:00
Luis R. Rodriguez 91b092d734 ar9170: remove EXPERIMENTAL marker
Cc: Christian Lamparter <chunkeey@web.de>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:26 -04:00
Bob Copeland ae6f53f25f ath5k: update PCU opmode whenever a new interface is added
Previously, we would store the operating mode at interface up time,
but only update the PCU registers when the next reset happened.
The result is that if beacon configuration (ops->bss_info_changed)
happens before ops->config, we will program the wrong things into
the timer registers.  Consequently, beacons won't work in AP mode
until after a reset (channel change, scan etc.).

This is fragile anyway so just program the opmode as soon as
mac80211 gives it to us.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:25 -04:00
Vasanthakumar Thiagarajan 0b3acfa71a ath9k: Remove unused ath9k_hw_intrget()
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:24 -04:00
Vasanthakumar Thiagarajan 3fc0fbf407 ath9k: Maintain monotonicity of PER while going across different phy
Monotonicity of packet error rate should be kept when moving
from one phy to another (legacy to ht, ht single stream to dual,
etc). Current code skips updating per for other phys.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:24 -04:00
Vasanthakumar Thiagarajan 42e8856092 ath9k: Update rate control for 11NA HT40 mode
Now the lowest rate in 11na ht40 mode is 13.5Mbps this shortens the
range when compared to 11na ht20 mode where the lowest rate is 6.5Mbps.
To improve the range, make 6.5Mbps as the lowest rate in 11na ht40 mode,
this improves the range by approximately 2dB. 11ng ht40 does not have
this issue as it also has basic rates (1, 2, 5.5 and 11).

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:24 -04:00
Luis R. Rodriguez 75323fa3de ath5k: remove EXPERIMENTAL marker
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:21 -04:00
Luis R. Rodriguez 44b7dd6dde ath: use menuconfig to put ath stuff in its own page
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:21 -04:00
Luis R. Rodriguez b820b3bcb0 ath: simplify kconfig dependency and add documentation
Make atheros wireless drivers visible when you select
"Atheros wirless drivers". Adds links to ath.ko page,
and Atheros drivers page on the wiki.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:21 -04:00
Luis R. Rodriguez d17734aee6 ath: depend on cfg80211
The ath.ko module itself depends on cfg80211

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:20 -04:00
Luis R. Rodriguez e351cfbf4e ar9170: remove unneeded flush_workqueue()
cancel_delayed_work_sync() and cancel_work_sync() are already being
used therefore already waiting for all pending work by the driver
to have been completed, no need to flush the mac80211 workqueue.

Cc: Christian Lamparter <chunkeey@web.de>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:20 -04:00
Luis R. Rodriguez c94dbff799 ath9k: move workqueue cancels to stop callback
We should be cancelling our work at the stop callback since
we are borrowing the mac80211 workqueue for our work. As it
stands mac80211 expects this for suspend purposes.

The ath9k specific virtual wiphy stuff need only be
cancelled only when the we have no secondary virtual wiphys.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:19 -04:00
Luis R. Rodriguez 35c95ab9b5 ath9k: move cancel_delayed_work_sync() out of ath_deinit_leds()
We do this as we'll be moving the cancel elsewhere later.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:18 -04:00
Luis R. Rodriguez 9851bad7a3 ath9k: re-order cancelling of work on mac80211 workqueue
ath9k uses the mac80211 workqueue for 4 different types of work:

 * Led blink work
 * TX hang monitoring work
 * internal wiphy schedular work
 * channel change work done for internal wiphy schedular

Since the internal wiphy schedular can end up kicking off some
channel channel change work we should first cancel the wiphy
schedular work and then the channel change work.

The TX hang work can be cancelled second since we're going down
anyway.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04 16:43:18 -04:00
David S. Miller 2f6d7c1b34 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2009-07-30 19:26:55 -07:00
David S. Miller df597efb57 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-3945.h
	drivers/net/wireless/iwlwifi/iwl-tx.c
	drivers/net/wireless/iwlwifi/iwl3945-base.c
2009-07-30 19:22:43 -07:00
Luis R. Rodriguez 35a1e70dfe ath9k: remove unused ATH_PCI_VERSION
Our version goes by the kernel release.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29 15:46:21 -04:00
Sujith fec247c0d5 ath9k: Add debug counters for TX
Location: ath9k/phy#/xmit

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29 15:46:09 -04:00
Gabor Juhos cbdec97587 ath9k: get rid of unnecessary setpower calls
We are using setpower routines regardless of the current power mode.
Don't bother the hardware, if it is not necessary.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29 15:46:04 -04:00
Gabor Juhos 96148326c4 ath9k: fix race with IEEE80211_CONF_PS checks
There is a small window where the mac80211 changes the IEEE80211_CONF_PS
flag, and then informs the driver about the change. We have a race
condition if we are checking the flag in the same time. Avoid it by
introducing a local variable, and using that instead of checking the
IEEE80211_CONF_PS flag directly.

This fix the problem reported by Luis:
http://article.gmane.org/gmane.linux.kernel.wireless.general/34363

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29 15:46:03 -04:00
Alexander Beregalov ff8365ca88 ar9170: fix build error when !CONFIG_AR9170_LEDS
Fix this build error when CONFIG_AR9170_LEDS is not set
drivers/net/wireless/ath/ar9170/main.c:1296: error: 'struct ar9170' has
no member named 'led_work'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29 15:46:01 -04:00
Vivek Natarajan ac88b6ecdf ath9k: Add support for AR9287 based chipsets.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:19 -04:00
Sujith 4ef7084173 ath9k: Remove a few redundant variables/macros
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:15 -04:00
Sujith f83da96564 ath9k: Cleanup return values
Cleanup aggregation start/stop function interfaces.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:14 -04:00
Sujith 9e98ac65a3 ath9k: Remove redundant HT macros
These can be obtained from mac80211.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:14 -04:00
Sujith 305fe47fb8 ath9k: Fix a sparse warning
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:14 -04:00
Sujith c49fd520d1 ath9k: Trivial fix in Kconfig
Update filename for debug information.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:14 -04:00
Vivek Natarajan d9db5fa2c5 ath9k: Add init values for AR9287 based chipsets.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:12 -04:00
Luis R. Rodriguez 58d30d14a1 ath: map TH to FCC3_WORLD
TH gets 5 GHz.

Cc: David Quan <david.quan@atheros.com>
Cc: Michael Green <michael.green@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:24:08 -04:00
Roel Kluin 008749fc99 ath9k: Read outside array bounds
Incorrect limits leads to reads outside array bounds.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-27 15:19:36 -04:00
Luis R. Rodriguez 95a2b2ef82 ath9k: do not stop the queues in driver stop
mac80211 will have disabled the queues for us when
needed.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:30 -04:00
Pavel Roskin f974cfdd81 ath5k: fix values for bus error bits in ISR2
The new values are taken from the recently open sourced Atheros HAL.
Correctness is also confirmed by the users with access to Atheros
documentation.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:29 -04:00
Gabor Juhos f9b604f6c2 ath9k: make use ath9k_hw_wait int ath9k_hw_reset_tsf
We have a dedicated function for this kind of checks, use that
instead of duplicating the code.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:26 -04:00
Gabor Juhos 1b7e528b2e ath9k: wake up the chip for TSF reset
If we are in NETWORK SLEEP state, AR_SLP32_TSF_WRITE_STATUS limit
always exceeds in 'ath9k_hw_reset_tsf', because reading of the
AR_SLP3 register always return with the magic 0xdeadbeef value.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:26 -04:00
Johannes Berg e91d83346a wireless: remove print_mac uses
Use %pM instead, and also remove stray variables
declared with DECLARE_MAC_BUF.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:19 -04:00
Vivek Natarajan 04dc882d60 ath9k: Add AR9287 based chipsets' register information.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:19 -04:00
Luis R. Rodriguez 64839170be ath9k: disable radio when all devices are marked idle
This uses the new configuration changes indicated up by
mac80211 when all interfaces are marked idle. We need to do
a little more work as we have our own set of virtual
wiphys within ath9k.

Only when all virtual wiphys are inactive do we allow an idle
state change for a wiphy to trigger disabling the radio.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:19 -04:00
Gabor Juhos 709ade9eb8 ath9k: serialize ath9k_ps_{wakeup,restore} calls
These functions are changing the power mode of the chip, but this may
have unpredictable effects, if another code are trying to set the power
mode via 'ath9k_hw_setpower' in the same time from another context.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:19 -04:00
Gabor Juhos 0bc0798b76 ath9k: uninline ath9k_ps_{wakeup,restore} functions
Uninline these functions before we add functional changes to them.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:18 -04:00
Gabor Juhos 04717ccd80 ath9k: serialize ath9k_hw_setpower calls
Because ath9k_setpower is called from various contexts, we have to
protect it against concurrent calls.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:18 -04:00
Vasanthakumar Thiagarajan ebaa24534e ath9k: Remove pointless ath9k_ps_restore() in ath_detach()
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:18 -04:00
Vasanthakumar Thiagarajan c41d92dc9d ath9k: Handle tx desc shortage more appropriately
Update tx BA window and complete the frame as failed
one if we can't clone the holding descriptor due to
unavailability of descriptors.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:18 -04:00
Vasanthakumar Thiagarajan 8e7f98b569 ath9k: Remove bogus assert in ath_clone_txbuf()
oops, this one should be part of the original patch
"ath9k: downgrade assert in ath_clone_txbuf()"

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:18 -04:00
Senthil Balasubramanian 164ace3853 ath9k: Fix TX hang issue with Atheros chipsets
The hardware doesn't generate interrupts in some cases and so work
around this by monitoring the TX status periodically and reset the
chip if required.

This behavior of the hardware not generating the TX interrupts can
be noticed through ath9k debugfs interrupt statistics when heavy
traffic is being sent from STA to AP. One can easily see this behavior
when the STA is transmitting at a higher rates. The interrupt statistics
in the debugfs interface clearly shows that only RX interrupts alone
being generated and TX being stuck.

TX should be monitored through a timer and reset the chip only when
frames are queued to the hardware but TX interrupts are not generated
for the same even after one second. Also, we shouldn't remove holding
descriptor from AC queue if it happens to be the only descriptor and
schedule TX aggregation regarless of queue depth as it improves
scheduling of AMPDUs from software to hardware queue.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:18 -04:00
Senthil Balasubramanian dd8b15b027 ath9k: RX stucks during heavy traffic in HT40 mode.
Running iperf along with p2p traffic on both TX and RX side then
stop one side, then stop the other side, then start it up again,
eventually the STA gets into a mode that it can not pass data at
all.

A hardware workaround for invalid RSSI can make FIFO write pointer
to jump over read pointer, causing RX data corruption and repeated
DMA. Both TX and RX works fine when the workaround is disabled.

To replace the original hardware work around, software looks for
frames with post delimiter CRC error and mark the RSSI invalid so
that the upperlayer will not use the RSSI associated with this
frame. So disable the hardware workaround by updating the appropriate
registers.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:17 -04:00
Senthil Balasubramanian a59b5a5e68 ath9k: Manipulate and report the correct RSSI
RSSI reported by the RX descriptor requires little manipulation.
Manipulate and report the correct RSSI to the stack. This will
fix the improper signal levels reported by iwconfig iw dev wlanX
station dump. Also the Link Quality reported seems to be varying
(falls to zero also sometimes) when iperf is run from STA to AP.

Also use the default noise floor for now as the one reported
during the caliberation seems to be wrong.

The Signal and Link Quality before this patch (taken while TX is
in progress from STA to AP)

09:59:13.285428037 Link Quality=29/70  Signal level=-81 dBm
09:59:13.410660084 Link Quality=20/70  Signal level=-90 dBm
09:59:13.586864392 Link Quality=21/70  Signal level=-89 dBm
09:59:13.710296281 Link Quality=21/70  Signal level=-89 dBm
09:59:13.821683064 Link Quality=25/70  Signal level=-85 dBm
09:59:13.933402989 Link Quality=24/70  Signal level=-86 dBm
09:59:14.045839276 Link Quality=26/70  Signal level=-84 dBm
09:59:14.193926673 Link Quality=23/70  Signal level=-87 dBm
09:59:14.306230262 Link Quality=31/70  Signal level=-79 dBm
09:59:14.419459667 Link Quality=26/70  Signal level=-84 dBm
09:59:14.530711167 Link Quality=37/70  Signal level=-73 dBm
09:59:14.642593962 Link Quality=29/70  Signal level=-81 dBm
09:59:14.754361169 Link Quality=21/70  Signal level=-89 dBm
09:59:14.866217355 Link Quality=21/70  Signal level=-89 dBm
09:59:14.976963623 Link Quality=28/70  Signal level=-82 dBm
09:59:15.089149809 Link Quality=26/70  Signal level=-84 dBm
09:59:15.205039887 Link Quality=27/70  Signal level=-83 dBm
09:59:15.316368003 Link Quality=23/70  Signal level=-87 dBm
09:59:15.427684036 Link Quality=36/70  Signal level=-74 dBm
09:59:15.539756380 Link Quality=21/70  Signal level=-89 dBm
09:59:15.650549093 Link Quality=22/70  Signal level=-88 dBm
09:59:15.761171672 Link Quality=32/70  Signal level=-78 dBm
09:59:15.872793750 Link Quality=23/70  Signal level=-87 dBm
09:59:15.984421694 Link Quality=22/70  Signal level=-88 dBm
09:59:16.097315093 Link Quality=21/70  Signal level=-89 dBm

The link quality and signal level after this patch (take while
TX is in progress from STA to AP)

17:21:25.627848091 Link Quality=65/70  Signal level=-45 dBm
17:21:25.762805607 Link Quality=65/70  Signal level=-45 dBm
17:21:25.875521888 Link Quality=66/70  Signal level=-44 dBm
17:21:25.987468448 Link Quality=66/70  Signal level=-44 dBm
17:21:26.100628151 Link Quality=66/70  Signal level=-44 dBm
17:21:26.213129671 Link Quality=66/70  Signal level=-44 dBm
17:21:26.324923070 Link Quality=65/70  Signal level=-45 dBm
17:21:26.436831357 Link Quality=65/70  Signal level=-45 dBm
17:21:26.610356973 Link Quality=65/70  Signal level=-45 dBm
17:21:26.723340047 Link Quality=65/70  Signal level=-45 dBm
17:21:26.835715293 Link Quality=64/70  Signal level=-46 dBm
17:21:26.949542748 Link Quality=64/70  Signal level=-46 dBm
17:21:27.062261613 Link Quality=65/70  Signal level=-45 dBm
17:21:27.174511563 Link Quality=64/70  Signal level=-46 dBm
17:21:27.287616232 Link Quality=64/70  Signal level=-46 dBm
17:21:27.400598119 Link Quality=64/70  Signal level=-46 dBm
17:21:27.511381404 Link Quality=64/70  Signal level=-46 dBm
17:21:27.624530421 Link Quality=65/70  Signal level=-45 dBm
17:21:27.737807109 Link Quality=64/70  Signal level=-46 dBm
17:21:27.850861352 Link Quality=65/70  Signal level=-45 dBm
17:21:27.963369436 Link Quality=64/70  Signal level=-46 dBm
17:21:28.076582289 Link Quality=64/70  Signal level=-46 dBm

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:17 -04:00
Vasanthakumar Thiagarajan 922bac6022 ath9k: Nuke struct ath_tx_ratectrl_state
Move its only member (u8 per) to struct ath_rate_priv.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:17 -04:00
Vasanthakumar Thiagarajan c41304653e ath9k: Use probe interval instead of rssi reduce interval
Get rid of rssi reduce interval.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:17 -04:00
Vasanthakumar Thiagarajan ddf4a2db72 ath9k: Remove unused members from rate control structure
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:17 -04:00
Vasanthakumar Thiagarajan 39a4cafe16 ath9k: Remove dead code in rate control
ath9k rate control is based on only PER (packet error rate),
remove unused code which was intented to do rssi based rate
selection.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:16 -04:00
Luis R. Rodriguez e25739a171 ath9k: remove rate control wraper
After the cleanup we just use get_rate as a wrapper, skip
the wrapper.

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:16 -04:00
Luis R. Rodriguez 4c6d4f5c33 mac80211: add helper for management / no-ack frame rate decision
All current rate control algorithms agree to send management and no-ack
frames at the lowest rate. They also agree to do this when sta
and the private rate control data is NULL. We add a hlper to mac80211
for this and simplify the rate control algorithm code.

Developers wishing to make enhancements to rate control algorithms
are for broadcast/multicast can opt to not use this in their
gate_rate() mac80211 callback.

Cc: Zhu Yi <yi.zhu@intel.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Cc: ipw3945-devel@lists.sourceforge.net
Cc: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:16 -04:00
Luis R. Rodriguez 7682a76df8 ath9k: remove unnecessary IEEE80211_TX_CTL_NO_ACK checks
We check for this condition early on in our mac80211 get_rate()
callback ath_get_rate(), so remove this check later down the path.

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:16 -04:00
Luis R. Rodriguez 201c3b414b ath9k: rename ath_rc_ratefind_ht() to ath_rc_get_highest_rix()
The purpose is to find the highest rate we can use.

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:16 -04:00
Luis R. Rodriguez b9b6e15a94 ath9k: remap ATH9K_MODE_*
There are a lot of gaps here.

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:15 -04:00
Luis R. Rodriguez dfe80a3fd2 ath9k: remove ATH9K_MODE_11B
This saves us 2733 bytes.

   text    data     bss     dec     hex filename
 252265    3628    1584  257477   3edc5 ath9k-has-b-rate.ko
 249905    3628    1584  255117   3e48d ath9k.ko

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Siged-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:15 -04:00
Luis R. Rodriguez 4e6df85dac ath9k: remove unused ath_rc_isvalid_txmask()
Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:15 -04:00
Luis R. Rodriguez 39448b0a27 ath9k: rename ath_rc_get_nextlowervalid_txrate()
What this does is get us our next lower rate so call it that,
ath_rc_get_lower_rix().

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:15 -04:00
Luis R. Rodriguez 20f57215a2 ath9k: remove pointless wrapper ath_rc_rate_getidx()
This is just calling another helper, so just use the other
helper directly. This should make it clear that when do not
find the next rate we stick to the current one.

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:15 -04:00
Luis R. Rodriguez 7466c524a4 ath9k: remove unused stepdown when looking for the next rate
This is not used, remove this.

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:15 -04:00
Luis R. Rodriguez 984d021d56 ath9k: remove unused min rate calculation code
This is not used, and when we need to get the lowest rate
we should simply use mac80211's own rate_lowest_index(sband, sta).

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:15 -04:00
Luis R. Rodriguez dd1901830c ath9k: cleanup try count for MRR in rate control
This has no functional change and just cleans up the code
to be more legible and removes a useless variable for
Multi Rate Retry.

For regular frames we use 2 retries for MRR segments [0-2].
For the last MRR segment [3] we use 4.

MRR[0] = 2
MRR[1] = 2
MRR[2] = 2
MRR[3] = 4

Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:14 -04:00
Luis R. Rodriguez e43419f9ad ath9k: downgrade assert in rc.c for invalid rate
The case where no vaid rate is found should not happen now
but to help debugging and downgrade this to a warn.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:14 -04:00
Christian Lamparter acbadf01ff ar9170: implement transmit aggregation
This patch roughly implements xmit aggregation for ar9170-like device.
Not all AP are compatible with the driver(and firmware) yet, so YMMV.

A more refined code will definitely need the final HT specification
to be available for the public, lots of firmware modification and
possibly a redesigned driver just for good measure.
Sadly, these conditions won't come true anytime soon...

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24 15:05:12 -04:00
David S. Miller 74d154189d Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/iwmc3200wifi/netdev.c
	net/wireless/scan.c
2009-07-23 19:03:51 -07:00
Luis R. Rodriguez 5d2214ac5e ath: add support for special 0x8000 regulatory domain
Two users of ar9170 devices have now reported their cards
have been programmed with a regulatory domain of 0x8000.
This is not a valid regulatory domain as such these users were
unable to use these devices. Since this doesn't seem to be
a device EEPROM corruption we must treat it specially. It
may have been possible the manufacturer intended to use 0x0
as the regulatory domain and that would ultimately yield
to US but since we cannot get confirmationf or this we
default this special case to one of our world regulatory
domains, specifically 0x64.

Reported-by: DavidFreeman on #linux-wireless
Reported-by: Joerg Albert <jal2@gmx.de>
Cc: Christian Lamparter <chunkeey@web.de>,
Cc: Stephen Chen <stephen.chen@atheros.com>
Cc: David Quan <david.quan@atheros.com>
Cc: Tony Yang <tony.yang@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-21 15:59:50 -04:00
Luis R. Rodriguez c66284f2a4 ath9k: Tune ANI function processing on AP mode during ANI reset
For AP mode we must tune ANI specially for 2 GHz and
for 5 GHz. We mask in only the flags we want to toggle
on ath9k_hw_ani_control() through the ah->ani_function
bitmask, this will take care of ignoring changes during
ANI reset which we were disabling before.

Testedy-by: Steven Luo <steven@steven676.net>
Cc: Bennyam Malavazi <bennyam.malavazi@atheros.com>
Cc: Jouni Malinen <jouni.malinen@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-21 12:07:43 -04:00
Bob Copeland 65b5a69860 ath5k: temporarily disable crypto for AP mode
Pavel Roskin reported some issues with using AP mode without
nohwcrypt=1.  Most likely this is similar to the problem fixed
some time ago in ath9k by 3f53dd64f1,
"ath9k: Fix hw crypto configuration for TKIP in AP mode."

That only affects TKIP but it's easiest to just disable that and
WEP too until we get a proper fix in.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-21 12:07:42 -04:00
Bob Copeland 3355443ad7 ath5k: write PCU registers on initial reset
"Ath5k: unify resets"
introduced a regression into 2.6.28 where the PCU registers are never
initialized, due to ath5k_reset() always passing true for change_channel.
We subsequently program a lot of these registers but several may start
in an unknown state.

Cc: stable@kernel.org
Reported-by: Forrest Zhang <forrest@hifulltech.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:29 -04:00
Bob Copeland 0d0cd72fa1 ath5k: do not release irq across suspend/resume
Paraphrasing Rafael J. Wysocki: "drivers should not release PCI IRQs
in suspend."  Doing so causes a warning during suspend/resume on some
platforms.

Cc: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:29 -04:00
Bob Copeland 88f6bfe182 ath: remove unnecessary return in ath_regd_get_band_ctl
'default' case already returns NO_CTL

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:29 -04:00
Bob Copeland 21800491cc ath5k: rework beacon configuration
Using the enable_beacon flag allows some simplifications and fixes
some corner cases in beacon handling.  This change adds a state
variable for beaconing in ath5k_beacon_config and handles both
enabling and disabling, thus eliminating the need for
ath5k_beacon_disable.  We also now configure the beacon when any
of the beacon parameters change, so ath5k_beacon_reconfig is no
longer needed (its mmiowb gets moved to ath5k_beacon_config).
Finally, by locking around the whole config function, we don't
need to worry about clearing the interrupt mask register before
installing the new mask.

The upshot is this correctly disables beaconing when the interfaces
are taken down, it fixes a potential restarting of beaconing
when ath5k_reset() is called, and ensures that updates to the
beacon interval take effect immediately.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:29 -04:00
Bob Copeland cec8db2301 ath5k: send buffered frames after the beacon
Enable the "Content" After Beacon queue and utilize it to send
any buffered frames for power-saving clients.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:28 -04:00
Jiri Slaby 9d49e861a5 ath9k: remove permissions from debugfs files
Don't allow users to open debugfs files, because it can cause oopses.

When a user opens some file, driver unlinks it and frees the
corresponding structure, we will dereference freed memory.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:26 -04:00
Jiri Slaby 31670070ff ath5k: remove permissions from debugfs files
Don't allow users to open debugfs files, because it can cause oopses.

When a user opens some file, driver unlinks it and frees the
corresponding structure, we will dereference freed memory.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:26 -04:00
Joe Perches 6badaaf772 drivers/net/wireless/ath/ath9k: Remove unnecessary semicolons
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:26 -04:00
Senthil Balasubramanian 140add2135 ath9k: Handle different TX and RX streams properly.
This patch fixes an issue when the TX and RX streams are different.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:24 -04:00
Senthil Balasubramanian e5f0921a95 ath9k: race condition in SCANNING state check during ANI calibration
ANI calibration shouldn't be done when we are not on our home channel.
This is already verified. However, it is racy. Fix this by proper
spin locks.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:24 -04:00
Senthil Balasubramanian f38faa31e0 ath9k: stop ani when the STA gets disconnected.
ANI is not required when the STA is disconnected. So stop it and enable
ANI for adhoc and monitor mode.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:24 -04:00
Senthil Balasubramanian 2664f201ef ath9k: remove unnecessary STATION mode check.
Remove unncessary STATION mode check in ath9k_bss_assoc_info() as
it is called only for STATION mode.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:02:24 -04:00
Christian Lamparter 92179986ba ar9170usb: module link in sysfs
Andrey Yurovsky reported that the driver forwarded erroneously the
parent device structure instead of the real thing, which of course
led to some dodgy sysfs links (at least?).

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:01:57 -04:00
Luis R. Rodriguez 7d5ca3b8b2 ath9k: differentiate quality reporting between legacy and HT configurations
We were not differentiating quality between legacy and HT
configurations. We change this to consider the differences.

New theory for reporting quality:

At a hardware RSSI of 45 you will be able to use MCS 7  reliably.
At a hardware RSSI of 45 you will be able to use MCS 15 reliably.
At a hardware RSSI of 35 you should be able use 54 Mbps reliably.

MCS 7  is the highets MCS index usable by a 1-stream device.
MCS 15 is the highest MCS index usable by a 2-stream device.

All ath9k devices are either 1-stream or 2-stream.

How many bars you see is derived from the qual reporting.

A more elaborate scheme can be used here but it requires tables
of SNR/throughput for each possible mode used. For the MCS table
you can refer to the wireless wiki:

http://wireless.kernel.org/en/developers/Documentation/ieee80211/802.11n

This should fix this bug report:

http://bugzilla.kernel.org/show_bug.cgi?id=13537

Cc: Janath.Peiris@atheros.com
Cc: Matt.Smith@atheros.com
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:01:55 -04:00
Gabor Juhos 293dc5dfdb ath9k: remove ath_rx_ps_back_to_sleep helper
This helper only clears the SC_OP_WAIT_FOR_{BEACON,CAB} flags.
Remove it and clear these flags directly in the approptiate
places instead.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:01:47 -04:00
Gabor Juhos b7351a003c ath9k: remove unnecessary clearing of SC_OP_WAIT_{BEACON,CAB} flags
All SC_OP_WAIT_* flags will be cleared in 'ath9k_conf' when PS mode
is disabled, so we don't have to clear it here.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 15:01:47 -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
Vasanthakumar Thiagarajan c4f9f16b30 ath9k: Make sure we configure a non-zero beacon interval
This patch moves the sanity check on beacon interval
which was done only for mesh mode to all operating
modes just to be safe.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 14:57:41 -04:00
Bob Copeland f0f3d388ba ath5k: enable hardware LEDs
Cardbus and some PCI cards use hardware LEDs rather than software GPIOs.
Program them with the proper blink patterns when idle, scanning or
associated.  Fixes http://bugzilla.kernel.org/show_bug.cgi?id=13288.

Tested-by: Frans Pop <elendil@planet.nl>
Tested-by: Mark Hindley <mark@hindley.org.uk>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 14:57:41 -04:00
Bob Copeland 46026e8f48 ath5k: cleanup ath5k_hw struct
ah_gpios array isn't used, and ah_current_channel can be a pointer
instead of an embedded struct.  Removing these and some other
write-only variables, and moving some things around for better
packing and cache utilization saves 116 bytes.

   text	   data	    bss	    dec	    hex	filename
 121762	    472	     64	 122298	  1ddba	ath5k_before.ko
 121646	    472	     64	 122182	  1dd46	ath5k.ko

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 14:57:41 -04:00
Vasanthakumar Thiagarajan 8a46097a6c ath9k: downgrade ASSERT() in ath_clone_txbuf()
We can easily run out of tx buf if there is any stuck in
transmission, so downgrade it to WARN_ON().

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 14:57:39 -04:00
Vasanthakumar Thiagarajan c3d8f02ed9 ath9k: Remove unnecessary count for addba attempt
mac80211 already has one to keep track of number of failure
addba attempts.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 14:57:39 -04:00
Vasanthakumar Thiagarajan 089e698d23 ath9k: Nuke unneccesary helper function to see if aggr is active
IEEE80211_TX_CTL_AMPDU in tx control flags should be enough
to confirm BA is negotiated for that tid.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-10 14:57:38 -04:00
Jay Sternberg 804ef71ee1 Atheros Kconfig needs to be dependent on WLAN_80211
Atheros top level menu needs a "depends WLAN_80211" to properly indent
within menuconfig and xconfig interfaces.

This is purely a visual issue but it effects all subsequent drivers.
The issue is the top level menu does not include a dependency on
WLAN_80211 so within the tree structure, Atheros is at the same level as
WLAN_80211 but when WLAN_80211 collapsed, the menu disappears along with
all subsequent drives, so it is really a subordinate.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-08 15:24:29 -04:00
Vasanthakumar Thiagarajan cbfe89c67b ath9k: Fix leak in tx descriptor
When we reclaim the tx desc, we always assume that the
last desc is a holding desc, which is not true, and skip it.
If the tx queue is drained during channel change, internal
reset and etc, the last descriptor may not be the holding
descriptor and we fail to reclaim them. This results in the
following two issues.

1. Tx stuck - We drop all the frames coming from upper layer
due to shortage in tx desc.

2. Crash - If we fail to reclaim a tx descriptor, we miss to
update the tx BA window with the seq number of the frame
associated to that desc, which, at some point, result in
the following crash due to an assert failure in ath_tx_addto_baw().

This patch fixes these two issues.

 kernel BUG at ../drivers/net/wireless/ath/ath9k/xmit.c:180!
[155064.304164] invalid opcode: 0000 [#1] SMP
 Call Trace:
  [<fbc6d83b>] ? ath9k_tx+0xeb/0x160 [ath9k]
  [<fbbc9591>]  ipv6? __ieee80211_tx+0x41/0x120 [mac80211]
  [<fbbcb5ae>] ?  aes_i586ieee80211_master_start_xmit+0x28e/0x560 [mac80211]
  [<c037e501>]  aes_generic? _spin_lock_irqsave+0x31/0x40
  [<c02f347b>] ? dev_hard_start_xmit+0x16b/0x1c0
  [<c03058b5>] ? __qdisc_run+0x1b5/0x200
  [<fbbcda5a>] ?  af_packetieee80211_select_queue+0xa/0x100 [mac80211]
  [<c02f53b7>] ?  i915dev_queue_xmit+0x2e7/0x3f0
  [<fbbc9b49>] ? ieee80211_subif_start_xmit+0x369/0x7a0 [mac80211]
  [<c031bc35>] ? ip_output+0x55/0xb0
  [<c02e0188>] ? show_memcpy_count+0x18/0x60
  [<c02eb186>] ? __kfree_skb+0x36/0x90
  [<c02f2202>] ?  binfmt_miscdev_queue_xmit_nit+0xd2/0x110
  [<c02f347b>] ? dev_hard_start_xmit+0x16b/0x1c0
  [<c03058b5>] ? __qdisc_run+0x1b5/0x200
  [<c033bca7>] ?  scoarp_create+0x57/0x2a0
  [<c02f53b7>] ?  bridgedev_queue_xmit+0x2e7/0x3f0
  [<c03034a0>] ? eth_header+0x0/0xc0
  [<c033b95f>]  stp? arp_xmit+0x5f/0x70
  [<c033bf4f>] ? arp_send+0x5f/0x70
  [<c033c8f5>]  bnep? arp_solicit+0x105/0x210
  [<c02fa5aa>] ? neigh_timer_handler+0x19a/0x390
  [<c013bf88>] ? run_timer_softirq+0x138/0x210
  [<c02fa410>] ?  ppdevneigh_timer_handler+0x0/0x390
  [<c02fa410>] ? neigh_timer_handler+0x0/0x390

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-07 12:55:26 -04:00
Linus Torvalds 5165aece0e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (43 commits)
  via-velocity: Fix velocity driver unmapping incorrect size.
  mlx4_en: Remove redundant refill code on RX
  mlx4_en: Removed redundant check on lso header size
  mlx4_en: Cancel port_up check in transmit function
  mlx4_en: using stop/start_all_queues
  mlx4_en: Removed redundant skb->len check
  mlx4_en: Counting all the dropped packets on the TX side
  usbnet cdc_subset: fix issues talking to PXA gadgets
  Net: qla3xxx, remove sleeping in atomic
  ipv4: fix NULL pointer + success return in route lookup path
  isdn: clean up documentation index
  cfg80211: validate station settings
  cfg80211: allow setting station parameters in mesh
  cfg80211: allow adding/deleting stations on mesh
  ath5k: fix beacon_int handling
  MAINTAINERS: Fix Atheros pattern paths
  ath9k: restore PS mode, before we put the chip into FULL SLEEP state.
  ath9k: wait for beacon frame along with CAB
  acer-wmi: fix rfkill conversion
  ath5k: avoid PCI FATAL interrupts by restoring RETRY_TIMEOUT disabling
  ...
2009-06-22 11:57:09 -07:00
Jiri Slaby eab0cd493c ath5k: fix beacon_int handling
73ca520336
(ath5k: remove conf->beacon_int usage)
removed bintval setting from ath5k_config. We need to init the
interval earlier and don't touch it in add_interface anymore.

Otherwise it will be set only once by upper layer through
bss_info_changed but not on second and further hostap executions.

We ended up having bintval 1000 which rendered the AP useless on
many clients.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Cc: Luis R. Rodriguez <lrodriguez@atheros.com>
Cc: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-19 11:50:23 -04:00
Gabor Juhos 38ab422e64 ath9k: restore PS mode, before we put the chip into FULL SLEEP state.
We want to put the chip into FULL SLEEP state, when we are disabling the
radio, but the the current code always change it to AWAKE/NETWORK SLEEP.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-19 11:50:23 -04:00
Gabor Juhos 58f5fffdc3 ath9k: wait for beacon frame along with CAB
Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-19 11:50:22 -04:00
Jouni Malinen 8451d22dad ath5k: avoid PCI FATAL interrupts by restoring RETRY_TIMEOUT disabling
This reverts 'ath5k: remove dummy PCI "retry timeout" fix' on the
same theory as in 'ath9k: Fix PCI FATAL interrupts by restoring
RETRY_TIMEOUT disabling'.

Reported-by: Bob Copeland <me@bobcopeland.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-19 11:50:18 -04:00
Jouni Malinen f0214843ba ath9k: Fix PCI FATAL interrupts by restoring RETRY_TIMEOUT disabling
An earlier commit, 'ath9k: remove dummy PCI "retry timeout" fix', removed
code that was documented to disable RETRY_TIMEOUT register (PCI reg
0x41) since it was claimed to be a no-op. However, it turns out that
there are some combinations of hosts and ath9k-supported cards for
which this is not a no-op (reg 0x41 has value 0x80, not 0) and this
code (or something similar) is needed. In such cases, the driver may
be next to unusable due to very frequent PCI FATAL interrupts from the
card.

Reverting the earlier commit, i.e., restoring the RETRY_TIMEOUT
disabling, seems to resolve the issue. Since the removal of this code
was not based on any known issue and was purely a cleanup change, the
safest option here is to just revert that commit. Should there be
desire to clean this up in the future, the change will need to be
tested with a more complete coverage of cards and host systems.

http://bugzilla.kernel.org/show_bug.cgi?id=13483

Cc: stable@kernel.org
Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-19 11:50:17 -04:00
Linus Torvalds d2aa455037 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (55 commits)
  netxen: fix tx ring accounting
  netxen: fix detection of cut-thru firmware mode
  forcedeth: fix dma api mismatches
  atm: sk_wmem_alloc initial value is one
  net: correct off-by-one write allocations reports
  via-velocity : fix no link detection on boot
  Net / e100: Fix suspend of devices that cannot be power managed
  TI DaVinci EMAC : Fix rmmod error
  net: group address list and its count
  ipv4: Fix fib_trie rebalancing, part 2
  pkt_sched: Update drops stats in act_police
  sky2: version 1.23
  sky2: add GRO support
  sky2: skb recycling
  sky2: reduce default transmit ring
  sky2: receive counter update
  sky2: fix shutdown synchronization
  sky2: PCI irq issues
  sky2: more receive shutdown
  sky2: turn off pause during shutdown
  ...

Manually fix trivial conflict in net/core/skbuff.c due to kmemcheck
2009-06-18 14:07:15 -07:00
GeunSik Lim 156f5a7801 debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.
Many developers use "/debug/" or "/debugfs/" or "/sys/kernel/debug/"
directory name to mount debugfs filesystem for ftrace according to
./Documentation/tracers/ftrace.txt file.

And, three directory names(ex:/debug/, /debugfs/, /sys/kernel/debug/) is
existed in kernel source like ftrace, DRM, Wireless, Documentation,
Network[sky2]files to mount debugfs filesystem.

debugfs means debug filesystem for debugging easy to use by greg kroah
hartman. "/sys/kernel/debug/" name is suitable as directory name
of debugfs filesystem.
- debugfs related reference: http://lwn.net/Articles/334546/

Fix inconsistency of directory name to mount debugfs filesystem.

* From Steven Rostedt
  - find_debugfs() and tracing_files() in this patch.

Signed-off-by: GeunSik Lim <geunsik.lim@samsung.com>
Acked-by     : Inaky Perez-Gonzalez <inaky@linux.intel.com>
Reviewed-by  : Steven Rostedt <rostedt@goodmis.org>
Reviewed-by  : James Smart <james.smart@emulex.com>
CC: Jiri Kosina <trivial@kernel.org>
CC: David Airlie <airlied@linux.ie>
CC: Peter Osterlund <petero2@telia.com>
CC: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
CC: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
CC: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15 21:30:28 -07:00
Gabor Juhos f0e9a8606c ath9k: process rx packet if we are waiting for CAB
If we are in PS mode, we have to process the received frame if
the SC_OP_WAIT_FOR_CAB bit is set.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15 15:05:59 -04:00
Gabor Juhos 7fe96a1648 ath9k: prevent sleeping while we are waiting for CAB
We have to remain awake if the SC_OP_WAIT_FOR_CAB flag is set.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15 15:05:58 -04:00
Gabor Juhos 3989279ccc ath9k: restore power mode on error path
The ath9k_ps_{wakeup,restore} calls must be in balance.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15 15:05:58 -04:00
Johannes Berg 3b319aae42 ath9k: port to cfg80211 rfkill
This ports the ath9k rfkill code to the new API offered by
cfg80211 and thus removes a lot of useless stuff.

("With this series a kernel panic, which is a regression, during module
unload disappears." -- Vasanthakumar Thiagarajan <vasanth@atheros.com>

Other patches in the series:

  ath9k: Add helper to get ath9k specific current channel
  ath9k: Make sure we have current channel in ah_curchan before rf
    disable/enable

-- JWL)

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Luis Rodriguez <mcgrof@gmail.com>
Tested-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15 15:05:57 -04:00
Vasanthakumar Thiagarajan 159cd468bc ath9k: Make sure we have current channel in ah_curchan before rf disable/enable
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15 15:05:57 -04:00
Vasanthakumar Thiagarajan 82880a7cf9 ath9k: Add helper to get ath9k specific current channel
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15 15:05:56 -04:00
Nick Kossifidis 35edf8aae8 ath5k: fix mesh beaconing
This patch is from Nick Kossifidis but he forgot to send it.  It ensures
that the beacon queue gets started in mesh mode as well, otherwise ath5k
will not beacon in mesh point mode.

At this time, we still need to issue a scan before mesh beaconing will
work but that appears to be a separate problem.

Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-15 15:05:53 -04:00
Bob Copeland a6ae0716e5 ath5k: minor rfkill cleanup
Always enable rfkill since the ifdefs in the code is not really worth
the Kconfig option.  Also fix a few code style things, and remove the
usage of the ah_gpio[] array so we can remove it later.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-10 13:28:39 -04:00
Vasanthakumar Thiagarajan 5eae6592e9 ath9k: Fix tx stuck when connected to aggr disabled HT AP
This patch along with my previous patch in mac80211 "Fix the
way ADDBA count..", fixes hang in tx when connected to an HT
AP which rejects/times out on addba req.

AGGR_ADDBA_PROGRESS should be cleared in aggr state when addba
negotiation is terminated due to either addba response is timed out
or addba is denied by the AP. With out clearing this bit,
all frames are queued onto s/w queue for getting tx'd as aggr and
will never be scheduled onto hw queue.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-10 13:28:38 -04:00
Tobias Doerffel e6a3b61681 ath5k: added cfg80211 based rfkill support
This patch introduces initial rfkill support for the ath5k driver
based on rfkill support in the cfg80211 framework.
All rfkill related code is separated into newly created rfkill.c.

Changes to existing code are minimal:

* added a new data structure ath5k_rfkill to the ath5k_softc structure
* inserted calls to HW rfkill init/deinit routines
* ath5k_intr() has been extended to handle AR5K_INT_GPIO interrupts

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-10 13:27:54 -04:00
Christian Lamparter 9b9c5aaeed ar9170: xmit code revamp
This patch is a back-port from aggregation testing code.

In the past, we didn't limit the amount of active tx urbs.
However, ar9170 only has a limited buffer reserved for
pending data frames.

This wasn't much of a problem with the slower 802.11b/g.
We simply stopped the full queue and moved on to something different
in the mean time. But - as you guessed it -  this simple approach
stands in way for a decent aggregation implementation.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-10 13:27:54 -04:00
Johannes Berg 2543a0c4c0 ar9170: interpret firmware debug commands
This adds new commands that the original firmware will not send
but we can use them to debug firmware.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-10 13:27:54 -04:00
Christian Lamparter 2489e4ea6c ar9170: remove deprecated code
This patch removes code (deprecated by "cfg80211: add rfkill support" )

main.c: In function 'ar9170_op_config':
main.c:1306: warning: '__IEEE80211_CONF_CHANGE_RADIO_ENABLED'
is deprecated (declared at include/net/mac80211.h:551)

and a useless device state.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-04 10:58:14 -04:00
Bob Copeland 72828b1b3c ath5k: disable beacon interrupt when interface is down
When we remove the active interface, there's no need to continue
sending beacons; doing so would cause a null pointer deref in
ieee80211_beacon_get().  Disable the interrupt in remove_interface
and add a WARN_ON(!vif) in case there are other instances lurking.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:06:15 -04:00
Luis R. Rodriguez e03e5ffd8d ath: make regulatory parsing more verbose on debug
This should help when reviewing issues regarding regulatory
domain on ath5k/ath9k/ar9170.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:06:15 -04:00
Vasanthakumar Thiagarajan 581f725ccd ath9k: Fix write callback of 'debug' which configures debug mask
Handle error condition on copy_from_user() properly and
make sure a NUL terminated char[] is sent to strict_strtoul()
for proper conversion.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:06:15 -04:00
Johannes Berg 19d337dff9 rfkill: rewrite
This patch completely rewrites the rfkill core to address
the following deficiencies:

 * all rfkill drivers need to implement polling where necessary
   rather than having one central implementation

 * updating the rfkill state cannot be done from arbitrary
   contexts, forcing drivers to use schedule_work and requiring
   lots of code

 * rfkill drivers need to keep track of soft/hard blocked
   internally -- the core should do this

 * the rfkill API has many unexpected quirks, for example being
   asymmetric wrt. alloc/free and register/unregister

 * rfkill can call back into a driver from within a function the
   driver called -- this is prone to deadlocks and generally
   should be avoided

 * rfkill-input pointlessly is a separate module

 * drivers need to #ifdef rfkill functions (unless they want to
   depend on or select RFKILL) -- rfkill should provide inlines
   that do nothing if it isn't compiled in

 * the rfkill structure is not opaque -- drivers need to initialise
   it correctly (lots of sanity checking code required) -- instead
   force drivers to pass the right variables to rfkill_alloc()

 * the documentation is hard to read because it always assumes the
   reader is completely clueless and contains way TOO MANY CAPS

 * the rfkill code needlessly uses a lot of locks and atomic
   operations in locked sections

 * fix LED trigger to actually change the LED when the radio state
   changes -- this wasn't done before

Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> [thinkpad]
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:06:13 -04:00
Christian Lamparter 6d7db193f2 ar9170: cancel led worker properly on exit
"[PATCH 3/4 v2] ar9170: fix LED power state handling" revealed
a bug which can cause a ugly crash.

The delayed worker is canceled before the LED class functions are
unregistered... So, if something manages to update the LEDs
while unregister routine is running the timer could fire _after_ the
module has been unloaded.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:15 -04:00
Christian Lamparter 66d008139c ar9170usb: more minor fixes
This patch contains a few more mostly random fixes for the USB front-end.

1. handle irq command response, instead of printing it to the console.

2. remove fixed FIXME.
    (real fix: "ar9170usb: reset device on resume". )

3. some more one-liner.
	- get rid of a useless "return;"
	- add a few branch prediction hints in hot-paths
	etc.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:15 -04:00
Christian Lamparter b55d6bcf9b ar9170: fix lockdep warning on hibernate
This patch takes care of Johannes' deadlock report by moving the
mutex_lock right after cancel_work_sync in ar9170_op_stop.

Besides, the janitor does not need to hold the mutex anymore,
so this extra lines can be removed as well.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:15 -04:00
Christian Lamparter 2431fe9a4b ar9170: fix LED power state handling
This patch fixes a minor visual bug in the led code, which
left the LED in the wrong power state when it was toggled
in a _unexpected_ way (e.g: enabling the LED twice).

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:15 -04:00
Christian Lamparter 95cf8769bb ar9170: kill duplicated HT feature flag
This patch removes a redundant flag.

.cap	=	IEEE80211_HT_CAP_MAX_AMSDU |	\
>		IEEE80211_HT_CAP_SM_PS |			\ <
		[...]									\
>		IEEE80211_HT_CAP_SM_PS,			\ <
		.ampdu_factor   = 3,					\

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:13 -04:00
Christian Lamparter 864cc02e7c ar9170: use bitop macros for tx filter flags
This patch fixes a bug in configure_filter's (sub-)routines.
We never really cleared the flags once we updated the hardware state,
so we wasted our resources by applying already active settings.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:13 -04:00
Christian Lamparter 29ceff5d58 ar9170: introduce functions for MAC programming
This patch introduces 3 new function which are used to update
the MAC state, whenever needed... e.g: after a band switch.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:12 -04:00
Christian Lamparter d7433390e4 ar9170: 40mhz fixes
This patch replace a few constant magics which may affected
the device when operating in a 40MHz channel.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:12 -04:00
Christian Lamparter b9ad462e34 ar9170: update hardware definitions
This patch only contains a few uncritical updates for the
hardware definition header.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:12 -04:00
Christian Lamparter f46f0dc3f1 ar9170: fix beacon plcp settings
This patch fixes a simple copy & paste error that affected beacon
transmission in 802.11a mode.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:12 -04:00
Luis R. Rodriguez bdf6d32f93 ar9170: add AVM FRITZ devices
This adds:

USB 0x057C:0x8401       AVM FRITZ!WLAN USB Stick N
USB 0x057C:0x8402       AVM FRITZ!WLAN USB Stick N 2.4

These devices require the 1-stage firmware, if not present we
don't continue.

Cc: Peter Grabienski <Peter.Grabienski@Atheros.com>
Cc: Stephen Chen <Stephen.Chen@Atheros.com>
Cc: Michael Fortin <Michael.Fortin@Atheros.com>
Cc: Johnny Cheng <Johnny.Cheng@Atheros.com>
Cc: Yuan-Gu Wei <Yuan-Gu.Wei@atheros.com>
Cc: Joerg Albert <jal2@gmx.de>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:11 -04:00
Luis R. Rodriguez c768b58d62 ar9170: add support for 1-stage firmware
You can get the stage 1 firmware from here:

http://www.kernel.org/pub/linux/kernel/people/mcgrof/firmware/ar9170/ar9170.fw

md5sum: 34feec4ec0eae3bb92c7c1ea2dfb4530
sha1sum: 6e5250498b815c2940d97242de31e054ae44e079

Its license:

http://www.kernel.org/pub/linux/kernel/people/mcgrof/firmware/ar9170/LICENSE

This is a new firmware, tested with WNDA3100.

Cc: Peter Grabienski <Peter.Grabienski@Atheros.com>
Cc: Stephen Chen <Stephen.Chen@Atheros.com>
Cc: Michael Fortin <Michael.Fortin@Atheros.com>
Cc: Johnny Cheng <Johnny.Cheng@Atheros.com>
Cc: Yuan-Gu Wei <Yuan-Gu.Wei@atheros.com>
Cc: Joerg Albert <jal2@gmx.de>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:11 -04:00
Jouni Malinen 546256fbd0 ath9k: Add sanity check for beacon_int in adhoc/mesh case
It looks like mac80211 can request the driver to start beaconing with
a beacon interval of zero in some cases (at least for mesh point). This
does not sound correct and something may need to be fixed in
mac80211. However, taken into account the unpleasantness of getting
stuck in an infinite busy loop with rtnl_lock held, let's add a quick
workaround in the driver to avoid the worst symptom while someone more
familiar with the mesh implementation can figure out what should be done
with mac80211 as far as beacon interval configuration is concerned.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:11 -04:00
Bob Copeland 73ca520336 ath5k: remove conf->beacon_int usage
ieee80211_conf->beacon_int was deprecated and removed in a cleanup
patch, however it was accidentally added back to ath5k in the change
"ath5k: Allow user/driver to set txpower."  Remove it once more,
fixing the following warning:

[13091.968902] WARNING: at drivers/net/wireless/ath/ath5k/base.c:2167 warn_slowpath_null+0x15/0x1a()
[13091.968906] Hardware name: MacBook1,1
[13091.968909] Modules linked in: usb_storage fuse i915 drm af_packet acpi_cpufreq binfmt_misc dm_mirror dm_region_hash dm_log dm_multipath dm_mod snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_seq_dummy hid_apple arc4 ecb snd_seq_oss snd_seq_midi_event usbhid snd_seq ath5k mac80211 appletouch snd_seq_device snd_pcm_oss snd_mixer_oss sky2 snd_pcm ath processor cfg80211 snd_timer sg ohci1394 snd uhci_hcd bitrev ieee1394 joydev ehci_hcd crc32 snd_page_alloc button ac thermal battery sr_mod applesmc cdrom evdev input_polldev unix [last unloaded: microcode]
[13091.968985] Pid: 2132, comm: phy0 Tainted: G        W  2.6.30-rc5-wl #118
[13091.968988] Call Trace:
[13091.968994]  [<c0125884>] warn_slowpath_fmt+0x77/0xa6
[13091.969003]  [<c03557d8>] ? _spin_unlock+0x2c/0x41
[13091.969008]  [<c0355a56>] ? _spin_lock_irqsave+0x15/0x69
[13091.969012]  [<c0355783>] ? _spin_unlock_irqrestore+0x34/0x5d
[13091.969019]  [<c01445bb>] ? trace_hardirqs_off+0xb/0xd
[13091.969024]  [<c0355783>] ? _spin_unlock_irqrestore+0x34/0x5d
[13091.969029]  [<c01445bb>] ? trace_hardirqs_off+0xb/0xd
[13091.969034]  [<c0355783>] ? _spin_unlock_irqrestore+0x34/0x5d
[13091.969039]  [<c01258c8>] warn_slowpath_null+0x15/0x1a
[13091.969054]  [<f965846d>] ath5k_beacon_update_timers+0x44/0x27f [ath5k]
[13091.969059]  [<c0126370>] ? vprintk+0x2dd/0x312
[13091.969063]  [<c0125e50>] ? release_console_sem+0x1a6/0x1d3
[13091.969076]  [<f96586c5>] ath5k_reset_tsf+0x1d/0x2c [ath5k]
[13091.969095]  [<f93f4426>] __ieee80211_sta_join_ibss+0x35/0x3aa [mac80211]
[13091.969102]  [<c0252793>] ? extract_entropy+0x47/0x8a
[13091.969121]  [<f93f4b21>] ieee80211_sta_find_ibss+0x2de/0x32f [mac80211]
[13091.969126]  [<c035422c>] ? mutex_lock_nested+0x28b/0x2a5
[13091.969145]  [<f93f4b8e>] ? ieee80211_ibss_notify_scan_completed+0x1c/0x6f [mac80211]
[13091.969164]  [<f93f4bc9>] ieee80211_ibss_notify_scan_completed+0x57/0x6f [mac80211]
[13091.969182]  [<f93f26da>] ieee80211_scan_completed+0x31a/0x33f [mac80211]
[13091.969201]  [<f93f27ca>] ieee80211_scan_work+0xcb/0x18b [mac80211]
[13091.969207]  [<c0133a6a>] worker_thread+0x1b1/0x28e
[13091.969212]  [<c0133a25>] ? worker_thread+0x16c/0x28e
[13091.969230]  [<f93f26ff>] ? ieee80211_scan_work+0x0/0x18b [mac80211]
[13091.969237]  [<c013736e>] ? autoremove_wake_function+0x0/0x38
[13091.969242]  [<c01338b9>] ? worker_thread+0x0/0x28e
[13091.969246]  [<c0137031>] kthread+0x4a/0x70
[13091.971460]  [<c0136fe7>] ? kthread+0x0/0x70
[13091.971467]  [<c0103527>] kernel_thread_helper+0x7/0x10
[13091.971470] ---[ end trace 8defaa5d15c50cef ]---

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:11 -04:00
Jeff Hansen 2493928e4d ath9k: Add "debug" file to debugfs
This patch adds the debug file to the ath9k debugfs, which lets you modify
the debug_mask at runtime, without having to reload the ath9k module.

Signed-off-by: Jeff Hansen <x@jeffhansen.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:11 -04:00
Jeff Hansen bedf087af9 ath9k: Combine legacy and 11n rc statistics
This patch combines the legacy and 11n rcstats into one, using the normal
rate table indices instead of two separate indices for each mode.  Legacy
rates also get all of the PER and retry information, now, too.

Signed-off-by: Jeff Hansen <x@jeffhansen.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:11 -04:00
Jeff Hansen b74444f8a9 ath9k: Reset SC_OP_TSF_RESET flag after stuck beacon
I have a TrendNet 652-BRP running OpenWRT + ath9k very well.  The only
problem is that the beacon gets stuck maybe once a day.  After
Vasanthakumar Thiagarajan's "ath9k: cleanup beacon parameters
configuration" patch, ath9k would nearly re-configure the beacons after it
detected the stuck beacon, and did a reset.  But it would fail the
SC_OP_TSF_RESET check in ath_beacon_config_ap.  This patch gets the beacon
fully reconfigured after the reset.

Signed-off-by: Jeff Hansen <x@jeffhansen.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:11 -04:00
John W. Linville 55aa4e0f16 ath5k: avoid leaking mutex in ath5k_config
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03 14:05:08 -04:00
David S. Miller c649c0e31d Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/ath/ath5k/phy.c
	drivers/net/wireless/iwlwifi/iwl-agn.c
	drivers/net/wireless/iwlwifi/iwl3945-base.c
2009-05-25 01:42:21 -07:00
Zhu Yi e31a16d6f6 wireless: move some utility functions from mac80211 to cfg80211
The patch moves some utility functions from mac80211 to cfg80211.
Because these functions are doing generic 802.11 operations so they
are not mac80211 specific. The moving allows some fullmac drivers
to be also benefit from these utility functions.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-22 14:06:02 -04:00