This patch adds support for power save for 5000 HW.
Signed-off-by: NMohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

rt2x00usb_vendor_request_large_buff is write-only, so it is
safe to make the argument a const.

Fixes compile warning:
drivers/net/wireless/rt2x00/rt73usb.c: In function 'rt73usb_load_firmware':
drivers/net/wireless/rt2x00/rt73usb.c:916: warning: passing argument 5 of 'rt2x00usb_vendor_request_large_buff' discards qualifiers from pointer target typ
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Some module parameters with only one line have the '\n' at the end of the
description.  This is not needed nor wanted as after the description the
type (i.e.  int) is followed by a newline.

Some modules contain a multi-line description, these are not affected
by this patch.
Signed-off-by: NNiels de Vos <niels.devos@wincor-nixdorf.com>
Acked-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: Ed L. Cashin <ecashin@coraid.com>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Roland Dreier <rolandd@cisco.com>
Acked-by: NMauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

iwl3945_rx_reply_rx was sending packets too early to
mac80211, before updating signal strength/quality.
This resulted in garbage power levels.
Signed-off-by: NMaxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Use the standard offsetof() macro to fix a compile warning below:
  CC [M]  drivers/net/wireless/prism54/isl_ioctl.o
drivers/net/wireless/prism54/isl_ioctl.c: In function 'prism2_ioctl_set_generic_element':
drivers/net/wireless/prism54/isl_ioctl.c:2658: warning: cast from pointer to integer of different size
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

ipw_write8() can't be used alone with a loop because of a wrong definition.

  CC [M]  drivers/net/wireless/ipw2200.o
drivers/net/wireless/ipw2200.c: In function 'ipw_ethtool_set_eeprom':
drivers/net/wireless/ipw2200.c:10579: warning: array subscript is above array bounds
drivers/net/wireless/ipw2200.c: In function 'ipw_load':
drivers/net/wireless/ipw2200.c:2663: warning: array subscript is above array bounds

Add missing do {} while (0) to fix them.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Some users of the RTL8187B have experienced difficulties since commit
49292d56 that introduced the power
management wext hooks. This difficulty has not made much sense until
it was realized that it was possible for mac80211 to make a call to the
config routine while that routine was already being executed. On this
device, it is necessary to loopback the TX when changing channels. Unless
this is properly restored, the device will lockup. A mutex now protects
the device state, and the private data in several places.

The problem was found by Herton Ronaldo Krzesinski <herton@mandriva.com.br>,
who also suggested this type of fix.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Acked-by: NHerton Ronaldo Krzesinski <herton@mandriva.com.br>
Acked-by: NHin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

In kernel version 2.6.26-rc9 my wireless LAN card worked; but in the
released 2.6.26, my RaLink rt2500 card wouldn't associate.

Git-bisect led me to this patch:

	61486e0f
	rt2x00: Remove ieee80211_tx_control argument from write_tx_desc()

I believe that there is a problem with that patch --- it
(inadvertantly) removes an extra line of code, that used to set the
DATABYTE_COUNT field.

This patch reinstates that line, and with it my card works again.
Signed-off-by: NPeter Chubb <peterc@gelato.unsw.edu.au>
Acked-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Since only mesh-enabled firmware has the CMD_802_11_MONITOR_MODE on
which the rtap functionality depends, only expose the rtap functionality
when mesh is also available.
Signed-off-by: NDan Williams <dcbw@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The sequence counter can be accessed in IRQ context,
which means the lock protecting the counter should
be irqsave. To prevent making the entire intf->lock irqsave
without reason, create a new lock which only protects
the sequence counter.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When the EEPROM_BBPTUNE_VGC word is valid, we should
override EEPROM_BBPTUNE_VGCLOWER field with the BBP
value.

And we should _not_ do that when EEPROM_BBPTUNE_R17 is valid.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

After the hardware has indicated the firmware upload has completed
and the device is ready, we should wait another millisecond to
make sure the device is really ready to continue.

Without this timout, bringing the interface down and up again will
fail due to incorrect register initialization.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The if-statement to determine the new TX/RX antenna
configuration was incomplete. It lacks the general
else-clause when the antenna wasn't changed.

This is a correct event, since it can occur when only
one of the antenna's has been changed or when the new
configuration is being forced (like when the interface
has just been added).
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Although most rt2x00 debugfs files don't contain
information which could compromise network security,
it is better to set the access permissions to root only.

This will be required when HW crypto is implemented,
because it could be possible to read the HW key from
the registers.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch from Davide Cavalca adds a usb ID for an rtl8187L device.
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch avoids stopping queue in the middle of the fragmented packet.
It is required that there will be ~10 (max packet/min fragment) or 16
(4 bits of frag number) free tfds all the time.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NHelmut Schaa <hschaa@suse.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Mask out previously demanded interrupt flags because we set
new ones. Don't allow mixing them after switch from sta to
ibss and vice versa.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Cc: Luis R. Rodriguez <mcgrof@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Enable I/Q calibration each time we have correction results (we
   were only enabling calibration during reset). If we don't we commit
   the same results each time calibration routine is called.
 * Add some documentation and a TODO on nf calibration
 * Return -EAGAIN on noise floor timeout/failure

Changes-licensed-under: ISC
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Add channel function for RF2425 (got this from decompiling binary
   HAL, i have no idea why there is a 5GHz section but i'm looking
   into it)
 * Update RF5112 channel function (also got this from decompiling binary HAL)
 * Set JAPAN setting for channel 14 on all PHY chips

Changes-licensed-under: ISC
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Add initial RF gain settings for RF2425

Changes-licensed-under: ISC
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Update ath5k_hw_reset and add some more documentation about PHY calibration
 * Fix ath5k_hw_set_power to use AR5K_SLEEP_CTL_SLE_ALLOW for Network sleep
 * Preserve sleep duration field while setting AR5K_SLEEP_CTL
   and reduce delays & checks for register's status (got this from
   decompiling & dumps, it works for me but it needs testing)

Changes-licensed-under: ISC
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Do an ADC test during reset to match recent regdumps

Changes-licensed-under: ISC
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Update hw_reset to calculate some of the values we were using as static
 * Increase activation to rx delay

Changes-licensed-under: ISC
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Correctly attach RF2425
 * Update SREV values for Radio chips
 * Update hw_attach to use new SPENDING values
 * Write a bit after POST for some chips

Changes-licensed-under: ISC
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Restore saved initial value after POST

Changes-licensed-under: ISC
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

* Update list of registers
* Use updated register macros inside hw.c, initvals.c and debug.c

Changes-licensed-under: ISC
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes mac80211 to not use the skb->cb over the queue step
from virtual interfaces to the master. The patch also, for now,
disables aggregation because that would still require requeuing,
will fix that in a separate patch. There are two other places (software
requeue and powersaving stations) where requeue can happen, but that is
not currently used by any drivers/not possible to use respectively.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Wireless statistics produced by the RTL8187B driver are not particularly
informative about the strength of the received signal. From the data sheet
provided by Realtek, I discovered that certain parts of the RX header
should have the information necessary to calculate signal quality and
strength. With testing, it became clear that most of these quantities were
very jittery - only the AGC correlated with the signals expected from nearby
AP's. As a result, the quality and strength are derived from the agc value.
The scaling has been determined so that the numbers are close to those
obtained by b43 under the same conditions. The results are qualitatively
correct.

Statistics derived for the RTL8187 have not been changed.

The RX header variables have been renamed to match the quantites described
in the Realtek data sheet.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

"mac80211: fix TX sequence numbers" broke rtl8187. This
patch makes the same kind of fix that was done for rt2x00. Note that
this code will have to be reworked for proper sequence numbers on beacons.
In addition, the sequence number has been placed in the hardware state,
not the vif state.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mac80211_hwsim.c:503:20: warning: Using plain integer as NULL pointer
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

ia64:

drivers/net/wireless/iwlwifi/iwl-led.c: In function `iwl_get_blink_rate':
drivers/net/wireless/iwlwifi/iwl-led.c:271: warning: long long int format, s64 arg (arg 6)
drivers/net/wireless/iwlwifi/iwl-led.c:271: warning: long long int format, u64 arg (arg 7)

We do not know what type the architecture uses to impement u64 and s64,
hence we must cast the variables for printing.

Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When the queues are being initialized the entry flags fields must be
reset to 0. When this does not happen some entries might still be
marked as "occupied" after an ifdown & ifup cycle which would trigger
errors when the entry is being accessed:

	phy0 -> rt2x00queue_write_tx_frame: Error - Arrived at non-free entry in the non-full queue 0.
	Please file bug report to http://rt2x00.serialmonkey.com.

This also fixes the mac80211 warning:

	------------[ cut here ]------------
	WARNING: at net/mac80211/tx.c:1238 ieee80211_master_start_xmit+0x30a/0x350 [mac80211]()

which was triggered by the queue error.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

rt2x00 will only perform configuration changes from
mac80211 when the configuration option has changed.
This means it keeps track of the current active configuration
and will check these values when the config() callback function
is used.

However this causes breakage when the interface has been
brought down and up again, since all stored active values
aren't reset while the registers might have.
This is for example the case with rt61pci antenna registers which
will jump to invalid values when the interface has been started.

To make sure a full configuration takes place after the start()
callback function, a new flag is added which will be checked
during config() and skips the "what's changed" phase.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The mutex is released on a successful return, so it would seem that it
should be released on an error return as well.

The semantic patch finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression l;
@@

mutex_lock(l);
... when != mutex_unlock(l)
    when any
    when strict
(
if (...) { ... when != mutex_unlock(l)
+   mutex_unlock(l);
    return ...;
}
|
mutex_unlock(l);
)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NMichael Buesch <mb@bu3sch.de>
Cc: stable <stable@kernel.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The mutex is released on a successful return, so it would seem that it
should be released on an error return as well.

The semantic patch finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression l;
@@

mutex_lock(l);
... when != mutex_unlock(l)
    when any
    when strict
(
if (...) { ... when != mutex_unlock(l)
+   mutex_unlock(l);
    return ...;
}
|
mutex_unlock(l);
)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When sending the RTS/CTS frame fails, we should
free the skb buffer which was created.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When IEEE80211_TX_CTL_ASSIGN_SEQ is not set,
the driver should disable hardware sequence counting
to make sure the mac80211 provided counter is used.
This fixes QOS sequence counting, since that is one
of the cases where mac80211 provides a seperate
sequence counter.

By moving the sequence counting code to rt2x00queue
we make sure that _all_ frames get the sequence counter,
including RTS/CTS and Beacon frames.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

When setting up a beacon template, the length of the beacon is
calculated with the assumption that the SKB already contains
the Tx descriptor. In the case of beacons it doesn't.

This patch undoes the damage by adding the Tx descriptor length
to the beacon length. This is safe, because the shortest possible
beacon is longer than the Tx header.
Signed-off-by: NIwo Mergler <Iwo@call-direct.com.au>
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Switches rt73usb to use large vendor requests for firmware
and beacons. This also fixes the garbled beacon bug.
Signed-off-by: NIwo Mergler <Iwo@call-direct.com.au>
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>