Switch athn(4) 802.11n Tx rate adaptation from MiRA to RA.

Tests:
AR5418: Uwe Werler
AR9280: kn, jmatthew, Lauri Tirkkonen, Scott Bennett, Mikolaj Kucharski
AR9285: kevlo, trondd, myself

ok deraadt@

Stop exporting `wt_hwqueue' now that drivers don't advertise it.

Pointed by and ok jsg@

Kill unused IEEE80211_RADIOTAP_HWQUEUE.

Its value is conflicting with an effort to standardize TX flags fields of
the radiotap header from Mathy Vanhoef.

This flag used to indicate the presence of

Kill unused IEEE80211_RADIOTAP_HWQUEUE.

Its value is conflicting with an effort to standardize TX flags fields of
the radiotap header from Mathy Vanhoef.

This flag used to indicate the presence of a specific hardware queue used
by WME but is unchecked.

ok sthen@, kn@

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Complete athn(4) noisefloor calibration code and enable it.
Update default/min/max noisefloor values to those used by Linux ath9k.
Tested by jmc, juanfra, kn, and myself, on 9280 and 9271 devices.

Enable IQ/ADC calibration in the athn(4) driver.
Code for this was already present, it was just not being called yet.
Tested on AR9280 and AR9271 by jmc@, kevlo@, jmatthew@, juanfra@, and myself.

Finish initial 11n support for athn(4).

The heavy lifting was done by damien@ years ago. I didn't even have
to figure out what the hardware expects, the code was already there.

This driver now supp

Finish initial 11n support for athn(4).

The heavy lifting was done by damien@ years ago. I didn't even have
to figure out what the hardware expects, the code was already there.

This driver now supports MCS 0-15 in client and hostap mode.
No Tx aggregation and no 40 MHz channels yet.

tested by vgross@, bmercer@, tb@, jmc@, Vadim Vygonets, Peter Kay
ok bmercer@ tb@ phessler@

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Remove the IEEE80211_NO_HT macro. Reduces ifdef spaghetti, enables 11n mode
in bsd.rd, and might uncover some bugs. Suggested by tedu@ and deraadt@.
ok sthen@ jasper@ deraadt@

Add a DVACT_WAKEUP op to the *_activate() API. This is called after the
kernel resumes normal (non-cold, able to run processes, etc) operation.
Previously we were relying on specific DVACT_RESUME op

Add a DVACT_WAKEUP op to the *_activate() API. This is called after the
kernel resumes normal (non-cold, able to run processes, etc) operation.
Previously we were relying on specific DVACT_RESUME op's in drivers
creating callback/threads themselves, but that has become too common,
indicating the need for a built-in mechanism.
ok dlg kettenis, tested by a sufficient amount of people

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Fix values of AR9003 Rx queue software indexes. Both indexes were zero,
which is obviously not intended given how they are used in the ar9003 code.
No currently working athn(4) devices are affected b

Fix values of AR9003 Rx queue software indexes. Both indexes were zero,
which is obviously not intended given how they are used in the ar9003 code.
No currently working athn(4) devices are affected by this change.

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Init values for the AR9485 were for version 1.0 of this chip, which according
to Atheros Linux developers was never sold. So update initvals to what Linux
is using for the 1.1 generation. Because the

Init values for the AR9485 were for version 1.0 of this chip, which according
to Atheros Linux developers was never sold. So update initvals to what Linux
is using for the 1.1 generation. Because the serdes values are written to
different registers on the AR9485 this involves tweaking the serdes init code
for all athn(4) chip families. This commit doesn't make AR9485 devices work
yet but is a step in the right direction.

Tested by krw, kettenis, and Andrew Ngo. ok kettenis@

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Add support for power saving in Host AP mode.

ok stsp@, deraadt@

Allow a variable number of words for the Serializer/Deserializer programming.
Probably not enought to make the AR9380 chips to work, but at least the kernel
shouldn't crash anymore when we see one.

Allow a variable number of words for the Serializer/Deserializer programming.
Probably not enought to make the AR9380 chips to work, but at least the kernel
shouldn't crash anymore when we see one.

ok stsp@

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fix LEDs handling.
do not read back the LED GPIO pin since it is configured in output
only mode.
makes the link LED blink on the WiFiStation EXT when scanning (the
LEDs indicating the signal strength

fix LEDs handling.
do not read back the LED GPIO pin since it is configured in output
only mode.
makes the link LED blink on the WiFiStation EXT when scanning (the
LEDs indicating the signal strength are not working yet).

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"athn* at uhub? port ?"
this adds preliminary support for the Atheros AR9271 chipset and
probably the AR9280+AR7010 and AR9287+AR7010 too though those were
not tested.
scanning still takes a very lon

"athn* at uhub? port ?"
this adds preliminary support for the Atheros AR9271 chipset and
probably the AR9280+AR7010 and AR9287+AR7010 too though those were
not tested.
scanning still takes a very long time (~1 sec per channel) but
otherwise, operation in STA mode seems stable.
will implement fast channel change soon.

committed over the Ubiquiti WifiStation EXT (AR9271) on i386 with WPA.
requires firmware (see man page for details)

ok deraadt@ (who checked the .h files)

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add code to read OTPROM on the AR9485

limit the number of Tx chains used on some 3-stream AR9380 chips
for MCS0~15 to not exceed the PCIe power requirements.

Make the athn(4) back-end more bus agnostic by moving read and write
operations to callbacks in the PCI and CardBus front-ends.
This will allow support of other buses like USB.
Assume the following m

Make the athn(4) back-end more bus agnostic by moving read and write
operations to callbacks in the PCI and CardBus front-ends.
This will allow support of other buses like USB.
Assume the following memory model:
- writes are ordered but may be buffered and require explicit flush
- a read always flushes all buffered writes

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Several updates for the Osprey (AR9380):
- Add the different ROM templates for the different chips
- Fix AR_PHY_65NM_CH0_TOP_XPABIASLVL definition
- Apply attenuation settings from the ROM

Stop compiling with ATHN_DEBUG defined by default.

fix initialization value of analog register AR_AN_TOP2 on some high
power AR9220 adapters.
this should fix at least Ubiquiti SR71-12 and Winstron DMNA92 adapters.

problem reported by Giuseppe Scalzi

fix initialization value of analog register AR_AN_TOP2 on some high
power AR9220 adapters.
this should fix at least Ubiquiti SR71-12 and Winstron DMNA92 adapters.

problem reported by Giuseppe Scalzi and Alex Dervish
fix tested by Giuseppe Scalzi with a Winstron DMNA92

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Enable periodic (every 4 minutes) power amplifier calibration
on AR9285 and AR9287.

For chips in open-loop power control mode, periodically (every 30 secs)
compensate Tx gain for temperature changes.

Add suspend/unsuspend logic.

ok damien@, deraadt@

According to Linux ath9k, the AR9280 1.0 was never sold.
Since this is the only chip revision that requires split TKIP MIC keys,
remove code that deal with that.

cleanup/fix PA predistortion code.