sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

[ath_hal] Add get/set NAV functions

The NAV (network allocation vector) register reflects the current MAC
tracking of NAV - when it will stay quiet before transmitting.

Other devices transmit their

[ath_hal] Add get/set NAV functions

The NAV (network allocation vector) register reflects the current MAC
tracking of NAV - when it will stay quiet before transmitting.

Other devices transmit their frame durations in their 802.11 PHY headers
and all devices that hear a frame - even if it's one in an encoding
they don't understand - will understand the low bitrate PHY header that
includes the frame duration. So, they'll set NAV to this value so
they'll stay quiet until the transmit completes.

Anyway, sometimes the PHY NAV header is garbled and sometimes, notably
older broadcom devices, will fake a long NAV so they can get "cleaner" air
for local calibration. When this happens, the hardware will stay quiet
for quite some time and this can lead to missed/stuck beacons, or
(for Very Large Values) a MAC hang.

This code just adds the ability to get/set the NAV; the driver will
need to take care of using it during transmit hangs and beacon misses
to see if it's due to a trash looking NAV.

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SPDX: license IDs for some ISC-related files.

Merge ^/head r303250 through r304235.

sys/dev: replace comma with semicolon when pertinent.

Uses of commas instead of a semicolons can easily go undetected. The comma
can serve as a statement separator but this shouldn't be abused when

sys/dev: replace comma with semicolon when pertinent.

Uses of commas instead of a semicolons can easily go undetected. The comma
can serve as a statement separator but this shouldn't be abused when
statements are meant to be standalone.

Detected with devel/coccinelle following a hint from DragonFlyBSD.

MFC after: 1 month

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[ath_hal] retire a "long RX desc" flag, store/use the TX/RX timestamp length.

* the code already stored the length of the RX desc, which I never used.
So, use that and retire the new flag I introd

[ath_hal] retire a "long RX desc" flag, store/use the TX/RX timestamp length.

* the code already stored the length of the RX desc, which I never used.
So, use that and retire the new flag I introduced a while ago.
* Introduce a TX timestamp length field and capability.

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dev/ath: minor spelling fixes in comments.

No functional change.

Reviewed by: adrian

Merge from head@274682

IFC @r272481

Sync to HEAD@r272516.

Reintegrate head@r272414

Sponsored by: The FreeBSD Foundation

Add initial support for the AR9485 CUS198 / CUS230 variants.

These variants have a few differences from the default AR9485 NIC,
namely:

* a non-default antenna switch config;
* slightly different R

Add initial support for the AR9485 CUS198 / CUS230 variants.

These variants have a few differences from the default AR9485 NIC,
namely:

* a non-default antenna switch config;
* slightly different RX gain table setup;
* an external XLNA hooked up to a GPIO pin;
* (and not yet done) RSSI threshold differences when
doing slow diversity.

To make this possible:

* Add the PCI device list from Linux ath9k, complete with vendor and
sub-vendor IDs for various things to be enabled;
* .. and until FreeBSD learns about a PCI device list like this,
write a search function inspired by the USB device enumeration code;
* add HAL_OPS_CONFIG to the HAL attach methods; the HAL can use this
to initialise its local driver parameters upon attach;
* copy these parameters over in the AR9300 HAL;
* don't default to override the antenna switch - only do it for
the chips that require it;
* I brought over ar9300_attenuation_apply() from ath9k which is cleaner
and easier to read for this particular NIC.

This is a work in progress. I'm worried that there's some post-AR9380
NIC out there which doesn't work without the antenna override set as
I currently haven't implemented bluetooth coexistence for the AR9380
and later HAL. But I'd rather have this code in the tree and fix it
up before 11.0-RELEASE happens versus having a set of newer NICs
in laptops be effectively RX deaf.

Tested:

* AR9380 (STA)
* AR9485 CUS198 (STA)

Obtained from: Qualcomm Atheros, Linux ath9k

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Merge fresh head.

sync from head

IFC @247348.

Begin adding support to explicitly set the current chainmask.

Right now the only way to set the chainmask is to set the hardware
configured chainmask through capabilities. This is fine for forcing

Begin adding support to explicitly set the current chainmask.

Right now the only way to set the chainmask is to set the hardware
configured chainmask through capabilities. This is fine for forcing
the chainmask to be something other than what the hardware is capable
of (eg to reduce TX/RX to one connected antenna) but it does change what
the HAL hardware chainmask configuration is.

For operational mode changes, it (may?) make sense to separately control
the TX/RX chainmask.

Right now it's done as part of ar5416_reset.c - ar5416UpdateChainMasks()
calculates which TX/RX chainmasks to enable based on the operating mode.
(1 for legacy and whatever is supported for 11n operation.) But doing
this in the HAL is suboptimal - the driver needs to know the currently
configured chainmask in order to correctly enable things for each
TX descriptor. This is currently done by overriding the chainmask
config in the ar5416 TX routines but this has to disappear - the AR9300
HAL support requires the driver to dynamically set the TX chainmask based
on the TX power and TX rate in order to meet mini-PCIe slot power
requirements.

So:

* Introduce a new HAL method to set the operational chainmask variables;
* Introduce null methods for the previous generation chipsets;
* Add new driver state to record the current chainmask separate from
the hardware configured chainmask.

Part #2 of this will involve disabling ar5416UpdateChainMasks() and moving
it into the driver; as well as properly programming the TX chainmask
based on the currently configured HAL chainmask.

Tested:

* AR5416, STA mode - both legacy (11a/11bg) and 11n rates - verified
that AR_SELFGEN_MASK (the chainmask used for self-generated frames like
ACKs and RTSes) is correct, as well as the TX descriptor contents is
correct.

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Sync with HEAD.

IFC @r243836

MFC

MFC @ r241285

Implement a HAL method to set a 64 bit TSF value.

TODO: implement it (and test) for the AR5210/AR5211.

IFC @ r242684

Sync from head

HAL updates!

* Add some more ANI spur immunity levels.
* For AR5111 radios attached to an AR5212, limit the 5GHz channels
that are available. A later revision of the AR5111 supports the 4.9GHz
P

HAL updates!

* Add some more ANI spur immunity levels.
* For AR5111 radios attached to an AR5212, limit the 5GHz channels
that are available. A later revision of the AR5111 supports the 4.9GHz
PSB channels but right now there's no check in place for the radio
revision.

If someone wants PSB support on AR5212+AR5111 radios then please let
me know and I'll add the relevant version check.

Obtained from: Qualcomm Atheros

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Merge head r233826 through r240095.