fix 11n channel construction

add macro for future regulatory mods

add PSB channels to the calibration list

fix compilation w/ AH_DEBUG

Overhaul regulatory support:
o remove HAL_CHANNEL; convert the hal to use net80211 channels; this
mostly involves mechanical changes to variable names and channel
attribute macros
o gut HAL_CHANN

Overhaul regulatory support:
o remove HAL_CHANNEL; convert the hal to use net80211 channels; this
mostly involves mechanical changes to variable names and channel
attribute macros
o gut HAL_CHANNEL_PRIVATE as most of the contents are now redundant
with the net80211 channel available
o change api for ath_hal_init_channels: no more reglass id's, no more outdoor
indication (was a noop), anM contents
o add ath_hal_getchannels to have the hal construct a channel list without
altering runtime state; this is used to retrieve the calibration list for
the device in ath_getradiocaps
o add ath_hal_set_channels to take a channel list and regulatory data from
above and construct internal state to match (maps frequencies for 900MHz
cards, setup for CTL lookups, etc)
o compact the private channel table: we keep one private channel
per frequency instead of one per HAL_CHANNEL; this gives a big
space savings and potentially improves ani and calibration by
sharing state (to be seen; didn't see anything in testing); a new config
option AH_MAXCHAN controls the table size (default to 96 which
was chosen to be ~3x the largest expected size)
o shrink ani state and change to mirror private channel table (one entry per
frequency indexed by ic_devdata)
o move ani state flags to private channel state
o remove country codes; use net80211 definitions instead
o remove GSM regulatory support; it's no longer needed now that we
pass in channel lists from above
o consolidate ADHOC_NO_11A attribute with DISALLOW_ADHOC_11A
o simplify initial channel list construction based on the EEPROM contents;
we preserve country code support for now but may want to just fallback
to a WWR sku and dispatch the discovered country code up to user space
so the channel list can be constructed using the master regdomain tables
o defer to net80211 for max antenna gain
o eliminate sorting of internal channel table; now that we use ic_devdata
as an index, table lookups are O(1)
o remove internal copy of the country code; the public one is sufficient
o remove AH_SUPPORT_11D conditional compilation; we always support 11d
o remove ath_hal_ispublicsafetysku; not needed any more
o remove ath_hal_isgsmsku; no more GSM stuff
o move Conformance Test Limit (CTL) state from private channel to a lookup
using per-band pointers cached in the private state block
o remove regulatory class id support; was unused and belongs in net80211
o fix channel list construction to set IEEE80211_CHAN_NOADHOC,
IEEE80211_CHAN_NOHOSTAP, and IEEE80211_CHAN_4MSXMIT
o remove private channel flags CHANNEL_DFS and CHANNEL_4MS_LIMIT; these are
now set in the constructed net80211 channel
o store CHANNEL_NFCREQUIRED (Noise Floor Required) channel attribute in one
of the driver-private flag bits of the net80211 channel
o move 900MHz frequency mapping into the hal; the mapped frequency is stored
in the private channel and used throughout the hal (no more mapping in the
driver and/or net80211)
o remove ath_hal_mhz2ieee; it's no longer needed as net80211 does the
calculation and available in the net80211 channel
o change noise floor calibration logic to work with compacted private channel
table setup; this may require revisiting as we no longer can distinguish
channel attributes (e.g. 11b vs 11g vs turbo) but since the data is used
only to calculate status data we can live with it for now
o change ah_getChipPowerLimits internal method to operate on a single channel
instead of all channels in the private channel table
o add ath_hal_gethwchannel to map a net80211 channel to a h/w frequency
(always the same except for 900MHz channels)
o add HAL_EEBADREG and HAL_EEBADCC status codes to better identify regulatory
problems
o remove CTRY_DEBUG and CTRY_DEFAULT enum's; these come from net80211 now
o change ath_hal_getwirelessmodes to really return wireless modes supported
by the hardware (was previously applying regulatory constraints)
o return channel interference status with IEEE80211_CHANSTATE_CWINT (should
change to a callback so hal api's can take const pointers)
o remove some #define's no longer needed with the inclusion of
<net80211/_ieee80211.h>

Sponsored by: Carlson Wireless

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export PSB frequencies

ath: clean up empty lines in .c and .h files

ath_hal: fix typo in ath_hal_printf

SPDX: license IDs for some ISC-related files.

[ath_hal] mad, mad hacks to get some semblence of correct HT/40 channels populated.

The HT40 channel population logic was "just" doing pairs of channels starting with
the band entry frequency. Trou

[ath_hal] mad, mad hacks to get some semblence of correct HT/40 channels populated.

The HT40 channel population logic was "just" doing pairs of channels starting with
the band entry frequency. Trouble is, a lot of the rules start way off at 5120MHz,
which isn't a valid 5GHz channel. Then, eg for HT40U, it would populate:

* (5120,5140)
* (5160,5180)
* (5200,5220)
* (5240,5260)

.. as the HT40U pairs, with the first being the primary channel. Channel 36
is 5180MHz, and since it's not a primary channel here, it wouldn't populate it.
Then, the next HT40U would be 5200/5220, which is highly wrong.

HT40D had the same problem.

So, this just forces that 5GHz HT40 channels start at channel 36 (5180),
no matter what the band edge says. This includes eg doing 4.9GHz channels.

This erm, meant that the HT40 channels for the low band was always wrong.

Oops!

Tested:

* AR9380, STA mode
* AR9344 SoC, AP mode

MFC after: 1 week

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[ath_hal] add a comment for the channel 144 regdomain flag.

I'm .. still trying to figure out what's going on.

[ath] convert recent changes over to HAL format.

This is needed to compile the ath tools, that includes this code
to run in userland.

Tested:

* Carambola 2, AR9331, STA mode

ath: refactor/split getchannels() method.

Split getchannels() method in ath_hal/ah_regdomain.c into a subset
of functions for better readability.

Note: due to different internal structure, it canno

ath: refactor/split getchannels() method.

Split getchannels() method in ath_hal/ah_regdomain.c into a subset
of functions for better readability.

Note: due to different internal structure, it cannot use
ieee80211_add_channel*() (however, some parts are done in a
similar manner).

Differential Revision: https://reviews.freebsd.org/D6139

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dev/ath: minor spelling fixes in comments.

No functional change.

Reviewed by: adrian

PicoStation M2HP presents reg domain 0x2a which is not found in atheros or linux
reference code. Add this workaround for now.

Reviewed by: adrian

Add XC900 SKU mapping.

Fix a corner case in the HAL debugging changes, where ah was NULL.

Although I tried to fix this earlier by introducing HALDEBUG_G(), it
turns out there seem to be other cases where the pointer value

Fix a corner case in the HAL debugging changes, where ah was NULL.

Although I tried to fix this earlier by introducing HALDEBUG_G(), it
turns out there seem to be other cases where the pointer value is still
NULL.

* Fix DO_HALDEBUG() and the HALDEBUG macro to check whether ah is NULL
before deferencing it
* Remove HALDEBUG_G() as it's no longer needed

This is hopefully a merge candidate for 9.0-RELEASE as enabling
debugging at startup could result in a kernel panic.

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Bitten again by the optional HALDEBUG compilation.

Remove this debugging, it's not needed anymore and when not enabled,
those variables trigger a compiler warning.

Approved by: re (kib, blanket)
Po

Bitten again by the optional HALDEBUG compilation.

Remove this debugging, it's not needed anymore and when not enabled,
those variables trigger a compiler warning.

Approved by: re (kib, blanket)
Pointy-hat-to: adrian, for not testing a non-debug compile of this code enough

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The older HAL code sets up the regulatory domain once; FreeBSD/net80211
allows it to be overridden at runtime.

Thus, add a function which updates ah_dfsDomain after a channel set
call to ath_hal_set

The older HAL code sets up the regulatory domain once; FreeBSD/net80211
allows it to be overridden at runtime.

Thus, add a function which updates ah_dfsDomain after a channel set
call to ath_hal_set_channels().

Approved by: re (kib, blanket)

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Introduce some more DFS related hooks, inspired both by local work
and the Atheros reference code.

The radar detection code needs to know what the current DFS domain is.
Since net80211 doesn't curre

Introduce some more DFS related hooks, inspired both by local work
and the Atheros reference code.

The radar detection code needs to know what the current DFS domain is.
Since net80211 doesn't currently know this information, it's extracted
from the HAL regulatory domain information.

The specifics:

* add a new ath_dfs API hook, ath_dfs_init_radar_filters(), which
updates the radar filters whenever the regulatory domain changes.
* add HAL_DFS_DOMAIN which describes the currently configured DFS domain .
* add a new HAL internal variable which tracks the currently configured
HAL DFS domain.
* add a new HAL capability, HAL_CAP_DFS_DMN, which returns the currently
configured HAL DFS domain setting.
* update the HAL DFS domain setting whenever the channel setting is
updated.

Since this isn't currently used by any radar code, these should all
be no-ops for existing users.

Obtained from: Atheros
Submitted by: KBC Networks, sibridge
Approved by: re (kib, blanket)

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This re-enables HT40 channels for use when DFS is enabled.

These should be disabled for the AR5416 in hostap/mesh/ibss mode,
as the AR5416 doesn't have support for radar detection on the
ext channel

This re-enables HT40 channels for use when DFS is enabled.

These should be disabled for the AR5416 in hostap/mesh/ibss mode,
as the AR5416 doesn't have support for radar detection on the
ext channel of a HT40 setup. Later chips do.

Approved by: re (kib)

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Re-introduce a global ath_hal_debug again for now, whilst I figure out what
to do about the few cases where the HAL state isn't available (regdomain)
or isn't yet setup (probe/attach.)

The global at

Re-introduce a global ath_hal_debug again for now, whilst I figure out what
to do about the few cases where the HAL state isn't available (regdomain)
or isn't yet setup (probe/attach.)

The global ath_hal_debug now affects all instances of the HAL.

This also restores the ability for probe/attach debugging to work; as
the sysctl tree may not be attached at that point. Users can just set
the global "hw.ath.hal.debug" to a suitable value to enable probe/attach
related debugging.

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Migrate the regulatory database definitions into separate header files
to both make things clearer, and to make it easier to write userland
code which pulls in these definitions without needing to pu

Migrate the regulatory database definitions into separate header files
to both make things clearer, and to make it easier to write userland
code which pulls in these definitions without needing to pull in the
rest of the HAL.

This stuff should be deprecated at some point in the future once
the net80211 regulatory domain support encapsulates all of the
defintions here.

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Break out the ath regulatory domain structures into a separate header file.

Add WorldB SKU.

Reviewed by: sam
MFC after: 1 week