* add support for the Qwest/Actiontec 802AIN Wireless N USB Network Adapter.

lsusb identifies the device as: "ID 1668:1200 Actiontec Electronics, Inc. [hex]"

usb_modeswitch package and appropriate rules are required to switch
the device from "ID 0ace:20ff ZyDas"

Changes-licensed-under: GPL
Signed-off-by: NSteve Tanner <steve.tanner@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch removes the incomplete AMPDU implementation in ar9170usb.

The code in question is:
 * too big and complex (more than 550 SLOC.)
   This is enough to qualify for a new separate code file!

 * unbalanced quantity & quality
	over-engineered areas like:
		* xmit scheduling and queuing frames for multiple HT peers
		* redundant frame sorting
	are confronted by gaping holes:
		* accurate transmission feedback
		* firmware error-handling and device reset
		* HT rate control algorithm

 * error-prone
	Since its inclusion, hardly anything was done to fix
	any of the outlined flaws from the initial commit message.

   => This also indicates poor maintainability.

 * relies heavily on several spinlocks.

As a result of this shortcomings, the code is slow and does not
even support the most basic 11n requirement: HT station mode.

Therefore, I request to purge my heap of **** from the kernel:
"ar9170: implement transmit aggregation".

The next item on the agenda is: (re-)start from scratch with
an adequate design to accommodate the special requirements
and features of the available frameworks and tools.
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes a regression introduced by the following patch:
"ar9170: load firmware asynchronously"

When we kick off a firmware loading request and then unbind,
or disconnect the usb device right away, we get into trouble:

> ------------[ cut here ]------------
> WARNING: at lib/kref.c:44 kref_get+0x1c/0x20()
> Hardware name: 18666GU
> Modules linked in: ar9170usb [...]
> Pid: 6588, comm: firmware/ar9170 Not tainted 2.6.34-rc5-wl #43
> Call Trace:
> [<c102b05e>] ? warn_slowpath_common+0x6e/0xb0
> [<c117c93c>] ? kref_get+0x1c/0x20
> [<c102b0b3>] ? warn_slowpath_null+0x13/0x20
> [<c117c93c>] ? kref_get+0x1c/0x20
> [<c117bb2f>] ? kobject_get+0xf/0x20
> [<c124d630>] ? get_device+0x10/0x20
> [<c124e5a0>] ? device_add+0x60/0x530
> [<c117b8b5>] ? kobject_init+0x25/0xa0
> [<c12569f9>] ? _request_firmware+0x139/0x3e0
> [<c1256cc0>] ? request_firmware_work_func+0x20/0x70
> [<c1256ca0>] ? request_firmware_work_func+0x0/0x70
> [<c103ff24>] ? kthread+0x74/0x80
> [<c103feb0>] ? kthread+0x0/0x80
> [<c1003136>] ? kernel_thread_helper+0x6/0x10
>---[ end trace 2d50bd818f64a1b7 ]---
- followed by a random Oops -

Avoid that by waiting for the firmware loading to finish
(whether successfully or not) before the unbind in
ar9170_usb_disconnect.
Reported-by: NJohannes Berg <johannes@sipsolutions.net>
Bug-fixed-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Also remove associated IEEE80211_HW_NOISE_DBM from ieee80211_hw_flags.
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds the following 5 entries to the usbid device table:

 * Netgear WNA1000
 * Proxim ORiNOCO Dual Band 802.11n USB Adapter
 * 3Com Dual Band 802.11n USB Adapter
 * H3C Dual Band 802.11n USB Adapter
 * WNC Generic 11n USB dongle

CC: <stable@kernel.org>
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This is a patch to files in ath/ar9170 that fixes a set of warnings
found by checkpatch.pl tool. A line over 80 characters, a few empty
spaces before tab and a few empty characters before a new line.
Signed-off-by: NLuis de Bethencourt <luisbg@ubuntu.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

While ar9170's USB transport packet size is currently set to 8KiB,
the PHY is capable of receiving AMPDUs with up to 64KiB.
Such a large frame will be split over several rx URBs and
exceed the previously allocated space for rx stream reconstruction.

This patch increases the buffer size to 64KiB which is
in fact the phy & rx stream designed size limit.

Cc: stable@kernel.org
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=15591Reported-by: NChristian Mehlis <mehlis@inf.fu-berlin.de>
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

An int urb is constructed but we fill it in with a bulk pipe type.

Commit f661c6f8 implemented a pipe type
check when CONFIG_USB_DEBUG is enabled. The check failed for all the ar9170
usb transfers and the driver could not configure the wifi dongle.

This went unnoticed until now because most people don't have
CONFIG_USB_DEBUG enabled.
Signed-off-by: NValentin Longchamp <valentin.longchamp@epfl.ch>
Cc: Stable <stable@kernel.org>
Acked-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds support for the NEC WL300NU-G USB wifi dongle.
Signed-off-by: NBen Konrath <ben@bagu.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This converts ar9170 to load firmware asynchronously
out of ->probe() and only register with mac80211 when
all firmware has been loaded successfully. If, on the
other hand, any firmware fails to load, it will now
unbind from the device.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This converts ar9170 to use the new station
add/remove callbacks instead of using the
old sta_notify callback.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

get_tx_stats() will be removed from mac80211.

Because ar9170 uses ieee80211_tx_queue_stats internally, create a new
identical struct ar9170_tx_queue_stats which the driver can use.

Compile-tested only.
Signed-off-by: NKalle Valo <kalle.valo@iki.fi>
Tested-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

All its members (vif, mac_addr, type) are now available
in the vif struct directly, so we can pass that instead
of the conf struct. I generated this patch (except the
mac80211 and header file changes) with this semantic
patch:

@@
identifier conf, fn, hw;
type tp;
@@
tp fn(struct ieee80211_hw *hw,
-struct ieee80211_if_init_conf *conf)
+struct ieee80211_vif *vif)
{
<...
(
-conf->type
+vif->type
|
-conf->mac_addr
+vif->addr
|
-conf->vif
+vif
)
...>
}
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NStefan Seyfried <seife@sphairon.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes a rather embarrassing typo.
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch aggregates a bunch of small random changes
that won't fit really anywhere else properly.

1. move tid-locating macro into a separate function.

2. remove redundant NULL check.

3. add modulation mask definition
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The flags in question were once useful for debugging.
Time has passed and now they do nothing more than
duplicating txinfo->flags.
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

AR9170 has the bad habit of choking when traffic builds up.
Tests have shown that this can partially be attributed to
a huge buildup of backlogged frames.
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch removes dead infrastructure which was meant
for an out-of-tree rate control algorithm.
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

At least two revisions of the D-Link DWA 160 exist, called A1 and A2. A1
(USB-ID 07d1:3c10) is already listed in usb.c as D-Link DWA 160A. A2
(USB-ID 07d1:3a09) works if added to ar9170_usb_ids. I didn't do much
testing until now, but I was able to connect to APs using WPA or WEP and
transmit data.

Summary:

* Add model revision number to the comment for D-Link DWA 160 A1 (07d1:3c10)
* Add support for D-Link DWA 160 A2 (07d1:3a09)
Signed-off-by: NThomas Klute <thomas2.klute@uni-dortmund.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The entire aggregation code currently operates on the
hw pointer and station addresses, but that needs to
change to make stations purely per-vif; As one step
preparing for that make the aggregation code callable
with the station, or by the combination of virtual
interface and station address.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch enables the driver to process all incoming
dupofdm-modulated frames when operating in HT40 mode.
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

With the WLAN_PRE80211 drivers moved to drivers/staging, this
distinction becomes unnecessary.
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch follows "ar9170: atomic pending A-MPDU counter"
idea and converts another critical counter to atomic_*.
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

ar9170_op_get_tsf: handle a carry from TSF_L into TSF_H
by reading TSF_H twice.
Signed-off-by: NJoerg Albert <jal2@gmx.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

add heavy clip handling for 2.4GHz only (similar to the vendor driver).
Signed-off-by: NJoerg Albert <jal2@gmx.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes some coding style issues and moves MAX_RATE_POWER into hw.h
Signed-off-by: NJoerg Albert <jal2@gmx.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

These are provided by ath_common.
Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds the usbid for TP-Link TL-WN821N v2.

Cc: stable@kernel.org
Reported-by: NFabian Lenz <lenz_fabian@yahoo.de>
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NJoerg Albert <jal2@gmx.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NJoerg Albert <jal2@gmx.de>
Acked-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NJoerg Albert <jal2@gmx.de>
Acked-by: NChristian Lamparter <chunkeey@web.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add beacon control by BSS_CHANGED_BEACON_ENABLED and
bss_conf->enable_beacon from mac80211.
Signed-off-by: NJoerg Albert <jal2@gmx.de>
Signed-off-by: NChristian Lamparter <chunkeey@web.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Thanks to "mac80211: allow configure_filter callback to sleep",
we no longer have to defer the work to the workqueue.
Signed-off-by: NChristian Lamparter <chunkeey@web.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>