snd_hdspe(4): Add sysctls to select analog signal levels.

RME HDSPE AIO sound cards support different sensitivity levels at the
analog input, and different gain levels for the analog line and phones

snd_hdspe(4): Add sysctls to select analog signal levels.

RME HDSPE AIO sound cards support different sensitivity levels at the
analog input, and different gain levels for the analog line and phones
outputs. Expose these settings as sysctl tunables.

Test Plan:
The following tests on hardware should be performed if possible:
- Phones output volume changes according to sysctl setting
(caution, still extremely loud).
- Create loop to feedback the line output to line input, recording the
sound played.
- Iterate through input signal levels and observe volume changes in
recorded audio.
- Iterate through output signal levels and observe volume changes in
recorded audio.

Reviewed by: br, christos
Differential Revision: https://reviews.freebsd.org/D47412

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snd_hdspe(4): AO4S/AI4S support.

Add support for RME AO4S/AI4S extension cards. They are designed as a bracket
with 4 stereo TRS jacks each.

https://archiv.rme-audio.de/download/ao4s192_e.pdf
https

snd_hdspe(4): AO4S/AI4S support.

Add support for RME AO4S/AI4S extension cards. They are designed as a bracket
with 4 stereo TRS jacks each.

https://archiv.rme-audio.de/download/ao4s192_e.pdf
https://archiv.rme-audio.de/download/ai4s192_e.pdf

Reviewed by: Florian Walpen <dev@submerge.ch>
Differential Revision: https://reviews.freebsd.org/D46409

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snd_hdspe(4): Recognize newer firmware's PCI vendor id.

At least for HDSPe RayDAT cards, newer firmware comes with RME's own PCI
vendor id instead of the Xilinx one. Other HDSPe cards are probably a

snd_hdspe(4): Recognize newer firmware's PCI vendor id.

At least for HDSPe RayDAT cards, newer firmware comes with RME's own PCI
vendor id instead of the Xilinx one. Other HDSPe cards are probably also
affected. Update snd_hdspe(4) to recognize both the old Xilinx and the
new RME vendor ids.

Differential Revision: https://reviews.freebsd.org/D44978
MFC after: 1 day

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snd_hdspe(4): Only buffer_copy() audio data once.

Instead of blindly copying two periods of audio data to and from DMA
buffers, keep track of the writing position and derive the actual
part of audio

snd_hdspe(4): Only buffer_copy() audio data once.

Instead of blindly copying two periods of audio data to and from DMA
buffers, keep track of the writing position and derive the actual
part of audio data that needs to be copied.
This approximately halves the number of samples copied in total.

Differential Revision: https://reviews.freebsd.org/D44084

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snd_hdspe(4): Per device sysctl for sample rate.

Some hardware setups require a specific sample rate due to devices being
connected to digital ports (AES, S/PDIF, ADAT). Add a per device sysctl
"sam

snd_hdspe(4): Per device sysctl for sample rate.

Some hardware setups require a specific sample rate due to devices being
connected to digital ports (AES, S/PDIF, ADAT). Add a per device sysctl
"sample_rate" to let the user override sample rate requests from the pcm
infrastructure, when needed.

Differential Revision: https://reviews.freebsd.org/D43659

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snd_hdspe(4): Per device sysctl for period.

Let the user choose a period (interrupt cadence in samples), in the
official RME drivers this setting is available as "Buffer Size".
Override the period p

snd_hdspe(4): Per device sysctl for period.

Let the user choose a period (interrupt cadence in samples), in the
official RME drivers this setting is available as "Buffer Size".
Override the period propagated through blocksize by pcm channel latency
settings (see sound(4)), since these are unreliable and differ between
playback and recording channels.

Differential Revision: https://reviews.freebsd.org/D43527

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snd_hdspe(4): One pcm device per physical ADAT port.

ADAT connections transport 8, 4 or 2 audio channels depending on the
sample rate. Instead of splitting each physical ADAT port into 4
(potentiall

snd_hdspe(4): One pcm device per physical ADAT port.

ADAT connections transport 8, 4 or 2 audio channels depending on the
sample rate. Instead of splitting each physical ADAT port into 4
(potentially unmapped) stereo pcm devices, create just one pcm
device of variable channel width for every ADAT port.
Depending on the sample rate and channel width selected, the pcm
channels may be only partially mapped to ADAT channels and vice versa.

Added flexibility of the new channel mapping is also prerequisite to
introduce more pcm device layouts in follow-up commits.

Reviewed by: br
Differential Revision: https://reviews.freebsd.org/D43393

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Setups with digital audio connections like SPDIF and ADAT require
a designated master clock to stay in sync. Add a sysctl setting
to control the preferred clock source for each HDSPe sound card.
Comp

Setups with digital audio connections like SPDIF and ADAT require
a designated master clock to stay in sync. Add a sysctl setting
to control the preferred clock source for each HDSPe sound card.
Complement this by sysctl values to list available clock sources,
show the currently effective clock source and display the sync
status of all connections. Clock sources are named according to
RME user manuals.

Submitted by: Florian Walpen <dev@submerge.ch>
Differential Revision: https://reviews.freebsd.org/D43252

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

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

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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MfH @r295202

Expect to see panics in routing code at least now.

Merge ^/head r294599 through r294776.

MFH

Sponsored by: The FreeBSD Foundation

o Add gain-level control registers.
o Fix style.

Sponsored by: Machdep, Inc.

MFC

IFC @ r234692

sys/amd64/include/cpufunc.h
sys/amd64/include/fpu.h
sys/amd64/amd64/fpu.c
sys/amd64/vmm/vmm.c

- Add API to allow vmm FPU state init/save/restore.

FP stuff discussed with: kib

Merge head up to r232685 to projects/pf/head.

Add driver for the RME HDSPe AIO/RayDAT sound cards -- snd_hdspe(4).
Cards are expensive and so rare, so leave the driver as module.

Submitted by: Ruslan Bukin <br@bsdpad.com>
MFC after: 2 weeks