Commit Graph

803 Commits

Author SHA1 Message Date
Cristian Ciocaltea
67c7666fe8
ASoC: doc: Fix undefined SND_SOC_DAPM_NOPM argument
The virtual widget example makes use of an undefined SND_SOC_DAPM_NOPM
argument passed to SND_SOC_DAPM_MIXER().  Replace with the correct
SND_SOC_NOPM definition.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20231121120751.77355-1-cristian.ciocaltea@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-11-21 17:02:22 +00:00
Takashi Iwai
39cd06e3f7 ASoC: Updates for v6.7
This is quite a large set of changes but mostly due to API cleanups and
 in driver specific ways rather than due to anything subsystem wide.
 Highlights include:
 
  - Standardisation of API prefixes on snd_soc_, removing asoc_.
  - GPIO API usage improvements.
  - Support for HDA patches.
  - Lots of work on SOF, including crash dump support.
  - Support for AMD platforms with es83xx, Awinc AT87390, many Intel
    platforms, many Mediatek platforms, Qualcomm SM6115,  Richtek RTQ9128
    and Texas Instruments TAS575x.
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Merge tag 'asoc-v6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v6.7

This is quite a large set of changes but mostly due to API cleanups and
in driver specific ways rather than due to anything subsystem wide.
Highlights include:

 - Standardisation of API prefixes on snd_soc_, removing asoc_.
 - GPIO API usage improvements.
 - Support for HDA patches.
 - Lots of work on SOF, including crash dump support.
 - Support for AMD platforms with es83xx, Awinc AT87390, many Intel
   platforms, many Mediatek platforms, Qualcomm SM6115,  Richtek RTQ9128
   and Texas Instruments TAS575x.

[ the merge conflicts around SOF Intel HD-audio and CS35L41 subcodec
  drivers are resolved here -- tiwai ]
2023-10-21 09:49:15 +02:00
Amadeusz Sławiński
b5d5c87986
ASoC: doc: Update codec to codec examples
There are examples in documentation for codec to codec connection.
However they show method before recent series of patches which renamed
the fields. Update documentation accordingly.

Fixes: 7ddc7f91be ("ASoC: soc.h: clarify Codec2Codec params")
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230928134706.662947-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-09-28 16:04:13 +02:00
Takashi Iwai
60edec9bef ALSA: docs: Fix a typo of midi2_ump_probe option for snd-usb-audio
A simple typo fix: midi2_probe => midi2_ump_probe.

Fixes: febdfa0e9c ("ALSA: docs: Update MIDI 2.0 documentation for UMP 1.1 enhancement")
Link: https://lore.kernel.org/r/20230912075944.14032-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-09-12 10:00:46 +02:00
Oswald Buddenhagen
0982e519df ALSA: emu10k1: add separate documentation for E-MU cards
They are sufficiently different from Sound Blasters.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230825222157.170978-3-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-26 09:25:17 +02:00
Oswald Buddenhagen
13890a6a87 ALSA: emu10k1: more documentation updates
- Clarify the data flows. For SB Live! I fixed only the most obvious
  point ("from" vs. "for").
- Mention 7.1 side channels on Audigy.
- Be unspecific about the output DACs on Audigy, as lots of variants
  actually exist (see emu_chip_details table).

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230825222157.170978-2-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-26 09:25:08 +02:00
Oswald Buddenhagen
d945ef3627 ALSA: emu10k1: de-duplicate audigy-mixer.rst vs. sb-live-mixer.rst
Let the MANUALS/PATENTS section of the former simply refer to the latter
- there is no point in duplicating this information with little value to
end users.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230825222157.170978-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-26 09:24:59 +02:00
Takashi Iwai
a3ca016af1 ALSA: doc: Fix missing backquote in midi-2.0.rst
Fix the missing  missing backquote that caused a sphinx warning:
  Documentation/sound/designs/midi-2.0.rst:517: WARNING: Inline interpreted text or phrase reference start-string without end-string.

Fixes: e240cff9e6 ("ALSA: documentation: Add description for USB MIDI 2.0 gadget driver")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/r/20230825152957.18c54ae2@canb.auug.org.au
Link: https://lore.kernel.org/r/20230825092351.11780-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-25 11:24:35 +02:00
Takashi Iwai
e240cff9e6 ALSA: documentation: Add description for USB MIDI 2.0 gadget driver
The USB MIDI 2.0 gadget driver is now supported for 6.6 kernel, and
here we show a brief instruction how to enable and use it.

Link: https://lore.kernel.org/r/20230824075108.29958-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-24 10:03:18 +02:00
Takashi Iwai
36fc349aee ALSA: doc: Update description for the new PCM copy ops
Update the documentation about the PCM copy callbacks.
The update was kept minimalistic, just correcting the use of copy_user
ops with the single copy ops, and drop/update the text mentioning the
copy_kernel.

Link: https://lore.kernel.org/r/20230815190136.8987-24-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-18 12:19:19 +02:00
Srinivas Kandagatla
7ea9ee0064 ALSA: compress: allow setting codec params after next track
For gapless playback it is possible that each track can have different
codec profile with same decoder, for example we have WMA album,
we may have different tracks as WMA v9, WMA v10 and so on

Or if DSP's like QDSP have abililty to switch decoders on single stream
for each track, then this call could be used to set new codec parameters.

Existing code does not allow to change this profile while doing gapless
playback.

Reuse existing SNDRV_COMPRESS_SET_PARAMS to set this new track params along
some additional checks to enforce proper state machine.

With this new changes now the user can call SNDRV_COMPRESS_SET_PARAMS
anytime after setting next track and additional check in write should
also ensure that params are set before writing new data.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20230619092805.21649-1-srinivas.kandagatla@linaro.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-21 07:28:31 +02:00
Takashi Iwai
508b662b69 Merge branch 'topic/midi20' into for-next
As the updated MIDI 2.0 spec has been published freshly, this is a
catch up to add the support for new specs, especially UMP v1.1
features, on Linux kernel.

The new UMP v1.1 introduced the concept of Function Blocks (FB), which
is a kind of superset of USB MIDI 2.0 Group Terminal Blocks (GTB).
The patch set adds the support for FB as the primary information
source while keeping the parse of GTB as fallback.  Also UMP v1.1
supports the groupless messages, the protocol switch, static FBs, and
other new fundamental features, and those are supported as well.

Link: https://www.midi.org/midi-articles/details-about-midi-2-0-midi-ci-profiles-and-property-exchange
Link: https://lore.kernel.org/r/20230612081054.17200-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-13 07:37:59 +02:00
Takashi Iwai
febdfa0e9c ALSA: docs: Update MIDI 2.0 documentation for UMP 1.1 enhancement
There have been a few enhancements for the new UMP 1.1 features.
Update the documentation accordingly.

Link: https://lore.kernel.org/r/20230612081054.17200-11-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-12 18:22:35 +02:00
Ivan Orlov
f091ec768c docs: sound: add 'pcmtest' driver documentation
Add documentation for the new Virtual PCM Test Driver. It covers all
possible usage cases: errors and delay injections, random and
pattern-based data generation, playback and ioctl redefinition
functionalities testing.

We have a lot of different virtual media drivers, which can be used for
testing of the userspace applications and media subsystem middle layer.
However, all of them are aimed at testing the video functionality and
simulating the video devices. For audio devices we have only snd-dummy
module, which is good in simulating the correct behavior of an ALSA device.
I decided to write a tool, which would help to test the userspace ALSA
programs (and the PCM middle layer as well) under unusual circumstances
to figure out how they would behave. So I came up with this Virtual PCM
Test Driver.

This new Virtual PCM Test Driver has several features which can be useful
during the userspace ALSA applications testing/fuzzing, or testing/fuzzing
of the PCM middle layer. Not all of them can be implemented using the
existing virtual drivers (like dummy or loopback). Here is what can this
driver do:

- Simulate both capture and playback processes
- Check the playback stream for containing the looped pattern
- Generate random or pattern-based capture data
- Inject delays into the playback and capturing processes
- Inject errors during the PCM callbacks

Also, this driver can check the playback stream for containing the
predefined pattern, which is used in the corresponding selftest to check
the PCM middle layer data transferring functionality. Additionally, this
driver redefines the default RESET ioctl, and the selftest covers this PCM
API functionality as well.

The driver supports both interleaved and non-interleaved access modes, and
have separate pattern buffers for each channel. The driver supports up to
4 channels and up to 8 substreams.

Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230606193254.20791-1-ivan.orlov0322@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-07 13:08:35 +02:00
Takashi Iwai
03a58514d4 Merge branch 'topic/midi20' into for-next
This is a (largish) patch set for adding the support of MIDI 2.0
functionality, mainly targeted for USB devices.  MIDI 2.0 is a
complete overhaul of the 40-years old MIDI 1.0.  Unlike MIDI 1.0 byte
stream, MIDI 2.0 uses packets in 32bit words for Universal MIDI Packet
(UMP) protocol.  It supports both MIDI 1.0 commands for compatibility
and the extended MIDI 2.0 commands for higher resolutions and more
functions.

For supporting the UMP, the patch set extends the existing ALSA
rawmidi and sequencer interfaces, and adds the USB MIDI 2.0 support to
the standard USB-audio driver.

The rawmidi for UMP has a different device name (/dev/snd/umpC*D*) and
it reads/writes UMP packet data in 32bit CPU-native endianness.  For
the old MIDI 1.0 applications, the legacy rawmidi interface is
provided, too.

As default, USB-audio driver will take the alternate setting for MIDI
2.0 interface, and the compatibility with MIDI 1.0 is provided via the
rawmidi common layer.  However, user may let the driver falling back
to the old MIDI 1.0 interface by a module option, too.

A UMP-capable rawmidi device can create the corresponding ALSA
sequencer client(s) to support the UMP Endpoint and UMP Group
connections.  As a nature of ALSA sequencer, arbitrary connections
between clients/ports are allowed, and the ALSA sequencer core
performs the automatic conversions for the connections between a new
UMP sequencer client and a legacy MIDI 1.0 sequencer client.  It
allows the existing application to use MIDI 2.0 devices without
changes.

The MIDI-CI, which is another major extension in MIDI 2.0, isn't
covered by this patch set.  It would be implemented rather in
user-space.

Roughly speaking, the first half of this patch set is for extending
the rawmidi and USB-audio, and the second half is for extending the
ALSA sequencer interface.

The patch set is based on 6.4-rc2 kernel, but all patches can be
cleanly applicable on 6.2 and 6.3 kernels, too (while 6.1 and older
kernels would need minor adjustment for uapi header changes).

The updates for alsa-lib and alsa-utils will follow shortly later.

The author thanks members of MIDI Association OS/API Working Group,
especially Andrew Mee, for great helps for the initial design and
debugging / testing the drivers.

Link: https://lore.kernel.org/r/20230523075358.9672-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 14:14:47 +02:00
Takashi Iwai
6b39e30dce ALSA: docs: Add MIDI 2.0 documentation
Add the brief document for describing the MIDI 2.0 implementation on
Linux kernel.  Both rawmidi and sequencer API extensions are
described.

Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-38-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:40 +02:00
Oswald Buddenhagen
155e3d3bf0 ALSA: emu10k1: straighten out FX send init
The mixer structures were filled in two places: on driver init, and when
the devices are opened. The latter made the former pointless, so we
remove the former. This implies that mixer dumps may now return all
zeroes, which is OK, as restoring them is meaningless as well.

Things were even weirder for the (generally unused) secondary sends:

Some of the initialization loops were forgotten when support for Audigy
was added, thus creating the technically illegal state of multiple sends
being routed to the same FX accumulator (though it apparently doesn't
matter when the amount is zero).

The global multi-channel init used some rather bizarre values for the
secondary sends, and the init on open actually forgot to re-initialize
them. We now use a not really more useful, but simpler formula.

The direct register init was also bogus. This doesn't really matter, as
the value is overwritten when a voice comes into use, but still.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230516093612.3536451-2-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-17 17:04:31 +02:00
Oswald Buddenhagen
bcdbd3b788 ALSA: emu10k1: enable bit-exact playback, part 2: voice attenuation
The voice volume is a raw fractional multiplier that can't actually
represent 1.0. To still enable real pass-through, we now set the volume
to 0.5 (which results in no loss of precision, as the FX bus provides
fractional values) and scale up the samples in DSP code.

To maintain backwards compatibility with existing configuration files,
we rescale the values in the mixer controls. The range is extended
upwards from 0xffff to 0x1fffd, which actually introduces the
possibility of specifying an amplification.

There is still a minor incompatibility with user space, namely if
someone loaded custom DSP code. They'll just get half the volume, so
this doesn't seem like a big deal.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230514170323.3408834-8-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-16 11:11:04 +02:00
Bagas Sanjaya
e4212ed0ba ALSA: docs: Fix code block indentation in ALSA driver example
Sphinx reports htmldocs warnings:

Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3997: WARNING: Literal block expected; none found.
Documentation/sound/kernel-api/writing-an-alsa-driver.rst:4004: WARNING: Literal block expected; none found.
Documentation/sound/kernel-api/writing-an-alsa-driver.rst:4009: WARNING: Unexpected indentation.
Documentation/sound/kernel-api/writing-an-alsa-driver.rst:4035: WARNING: Literal block expected; none found.

These are due to indentation of example driver snippets which is outside
the code block scope.

Fix these by indenting code blocks in question to the scope.

Fixes: 4d421eebe1 ("ALSA: docs: writing-an-alsa-driver.rst: polishing")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/linux-doc/202305021822.4U6XOvGf-lkp@intel.com/
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20230503035416.62722-1-bagasdotme@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-03 08:08:25 +02:00
Ivan Orlov
1604f51b40 ALSA: docs: Extend module parameters description
Common ALSA module parameters look a little bit confusing because of the
description lacking, and it took me a while to understand the purpose of
their existence. To figure it out I asked the question about them to the
"alsa-devel" mailing list, and Takashi Iwai answered me with the text I
appended to the ALSA documentation in this patch.

These common module parameters aren't used a lot nowadays, but as I
understand they are important for providing compatibility with some
existing user-space apps. So in my opinion it is a good idea to document
why we need them.

Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230501101634.476297-1-ivan.orlov0322@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-03 08:06:37 +02:00
Takashi Iwai
ea3292986c Merge branch 'for-linus' into for-next
Merge 6.3-devel branch back in order to apply the more Realtek HD-audio
changes cleanly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-04-27 14:21:18 +02:00
Takashi Iwai
baa6584a24 ASoC: Updates for v6.4
The bulk of the commits here are for the conversion of drivers to use
 void remove callbacks but there's a reasonable amount of other stuff
 going on, the pace of development with the SOF code continues to be high
 and there's a bunch of new drivers too:
 
  - More core cleanups from Morimto-san.
  - Update drivers to have remove() callbacks returning void, mostly
    mechanical with some substantial changes.
  - Continued feature and simplification work on SOF, including addition
    of a no-DSP mode for bringup, HDA MLink and extensions to the IPC4
    protocol.
  - Hibernation support for CS35L45.
  - More DT binding conversions.
  - Support for Cirrus Logic CS35L56, Freescale QMC, Maxim MAX98363,
    nVidia systems with MAX9809x and RT5631, Realtek RT712, Renesas R-Car
    Gen4, Rockchip RK3588 and TI TAS5733.
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Merge tag 'asoc-v6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v6.4

The bulk of the commits here are for the conversion of drivers to use
void remove callbacks but there's a reasonable amount of other stuff
going on, the pace of development with the SOF code continues to be high
and there's a bunch of new drivers too:

 - More core cleanups from Morimto-san.
 - Update drivers to have remove() callbacks returning void, mostly
   mechanical with some substantial changes.
 - Continued feature and simplification work on SOF, including addition
   of a no-DSP mode for bringup, HDA MLink and extensions to the IPC4
   protocol.
 - Hibernation support for CS35L45.
 - More DT binding conversions.
 - Support for Cirrus Logic CS35L56, Freescale QMC, Maxim MAX98363,
   nVidia systems with MAX9809x and RT5631, Realtek RT712, Renesas R-Car
   Gen4, Rockchip RK3588 and TI TAS5733.
2023-04-24 15:15:31 +02:00
Oswald Buddenhagen
4d421eebe1 ALSA: docs: writing-an-alsa-driver.rst: polishing
- Update some outdated info
- Language fixes
- Whitespace/formatting fixes
- Prefer attached over stand-alone '::'

[ dropped a trailing white space in the patch -- tiwai ]

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>

Link: https://lore.kernel.org/r/20230421112751.990244-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-04-21 16:47:18 +02:00
Oswald Buddenhagen
9f656705c5 ALSA: pcm: rewrite snd_pcm_playback_silence()
The auto-silencer supports two modes: "thresholded" to fill up "just
enough", and "top-up" to fill up "as much as possible". The two modes
used rather distinct code paths, which this patch unifies. The only
remaining distinction is how much we actually want to fill.

This fixes a bug in thresholded mode, where we failed to use new_hw_ptr,
resulting in under-fill.

Top-up mode is now more well-behaved and much easier to understand in
corner cases.

This also updates comments in the proximity of silencing-related data
structures.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230420113324.877164-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-04-21 12:21:04 +02:00
Pierre-Louis Bossart
c7a92574ec
Documentation: sound: add description of Intel HDaudio multi-links
Add description of 'Skylake' multi-link structure added in 2015 and
recent extensions to support SoundWire/DMIC/SSP interfaces.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20230404104127.5629-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-04-06 16:45:33 +01:00
Oswald Buddenhagen
d3330cb8e3 ALSA: emu10k1: documentation updates
- Less misinformation
- Language and whitespace fixups

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230405201220.2197893-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-04-06 10:14:23 +02:00
Oswald Buddenhagen
c17f8fd317 ALSA: hda/sigmatel: add pin overrides for Intel DP45SG motherboard
Like the other boards from the D*45* series, this one sets up the
outputs not quite correctly.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230405201220.2197826-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-04-06 08:10:18 +02:00
Takashi Iwai
03f62c9cef ALSA: docs: A few more words for PCM XRUN handling and stream locks
Enhance the documents about the PCM, missing descriptions for a couple
of helpers like snd_pcm_period_elapsed_under_stream_lock() and
snd_pcm_stop_xrun().

Link: https://lore.kernel.org/r/20230323065237.5062-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-03-24 14:52:59 +01:00
Takashi Iwai
f84af109f6 ALSA: docs: Add description about ack callback -EPIPE error handling
Add a brief description about the newly added behavior of the PCM ack
callback with -EPIPE error.

Link: https://lore.kernel.org/r/20230323065237.5062-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-03-24 14:52:58 +01:00
Linus Torvalds
70756b49be It has been a moderately calm cycle for documentation; the significant
changes include:
 
 - Some significant additions to the memory-management documentation
 
 - Some improvements to navigation in the HTML-rendered docs
 
 - More Spanish and Chinese translations
 
 ...and the usual set of typo fixes and such.
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Merge tag 'docs-6.3' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "It has been a moderately calm cycle for documentation; the significant
  changes include:

   - Some significant additions to the memory-management documentation

   - Some improvements to navigation in the HTML-rendered docs

   - More Spanish and Chinese translations

  ... and the usual set of typo fixes and such"

* tag 'docs-6.3' of git://git.lwn.net/linux: (68 commits)
  Documentation/watchdog/hpwdt: Fix Format
  Documentation/watchdog/hpwdt: Fix Reference
  Documentation: core-api: padata: correct spelling
  docs/mm: Physical Memory: correct spelling in reference to CONFIG_PAGE_EXTENSION
  docs: Use HTML comments for the kernel-toc SPDX line
  docs: Add more information to the HTML sidebar
  Documentation: KVM: Update AMD memory encryption link
  printk: Document that CONFIG_BOOT_PRINTK_DELAY required for boot_delay=
  Documentation: userspace-api: correct spelling
  Documentation: sparc: correct spelling
  Documentation: driver-api: correct spelling
  Documentation: admin-guide: correct spelling
  docs: add workload-tracing document to admin-guide
  docs/admin-guide/mm: remove useless markup
  docs/mm: remove useless markup
  docs/mm: Physical Memory: remove useless markup
  docs/sp_SP: Add process magic-number translation
  docs: ftrace: always use canonical ftrace path
  Doc/damon: fix the data path error
  dma-buf: Add "dma-buf" to title of documentation
  ...
2023-02-22 12:00:20 -08:00
Ross Zwisler
2abfcd293b docs: ftrace: always use canonical ftrace path
The canonical location for the tracefs filesystem is at /sys/kernel/tracing.

But, from Documentation/trace/ftrace.rst:

  Before 4.1, all ftrace tracing control files were within the debugfs
  file system, which is typically located at /sys/kernel/debug/tracing.
  For backward compatibility, when mounting the debugfs file system,
  the tracefs file system will be automatically mounted at:

  /sys/kernel/debug/tracing

Many parts of Documentation still reference this older debugfs path, so
let's update them to avoid confusion.

Signed-off-by: Ross Zwisler <zwisler@google.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20230125213251.2013791-1-zwisler@google.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-01-31 14:02:30 -07:00
Miquel Raynal
372a0d7856 ALSA: doc: Fix PCM interface section typos
Fix two mistakes in the PCM interface section:
1/ Members of the snd_pcm_hardware structure are channels_{min,max}
   and not channel_{min,max} (mind the 's').
2/ Another sentence is incomplete as the reference to one structure
   member (period_bytes_max) is missing.

There is no relevant 'Fixes:' tag to apply as both typos predate the
Git era.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20230130162924.119389-1-miquel.raynal@bootlin.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-01-31 09:35:40 +01:00
Randy Dunlap
ba35c3a599 Documentation: sound: correct spelling
Correct spelling problems for Documentation/sound/ as reported
by codespell.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20230127064005.1558-27-rdunlap@infradead.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-01-29 09:23:45 +01:00
SeongJae Park
1c7b394a56 Docs/sound/index: Add missing SPDX License Identifier
Add missing SPDX License Identifier for sound documentation index file.

Signed-off-by: SeongJae Park <sj@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20230122213650.187710-9-sj@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-01-24 15:28:52 -07:00
SeongJae Park
941c95fdd6 Docs/subsystem-apis: Remove '[The ]Linux' prefixes from titles of listed documents
Some documents that listed on subsystem-apis have 'Linux' or 'The Linux'
title prefixes.  It's duplicated information, and makes finding the
document of interest with human eyes not easy.  Remove the prefixes from
the titles.

Signed-off-by: SeongJae Park <sj@kernel.org>
Acked-by: Iwona Winiarska <iwona.winiarska@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230122184834.181977-1-sj@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-01-24 15:27:08 -07:00
Takashi Iwai
0db78532ff ALSA: doc: Drop snd_dma_continuous_data() usages
Update the documentation to follow the recent change of the memory
allocation helpers.  The macro snd_dma_continuous_data() is gone, and
the driver needs to set up the coherent dma mask for allocating in the
lower memory addresses, instead.

Link: https://lore.kernel.org/r/20220823115740.14123-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-08-24 08:00:26 +02:00
Mark Brown
39c5c44fc4
ASoC: Merge up fixes
Needed for the Rockchip driver.
2022-07-11 15:51:01 +01:00
Marek Vasut
0735e400fa
ASoC: doc: Capitalize RESET line name
Make sure all AC97 interface lines are spelled in capitals,
to avoid confusing readers about where the 5th line is.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Mark Brown <broonie@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20220628165840.152235-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-07-07 17:16:30 +01:00
Marek Vasut
d15534a6f4
ASoC: doc: Update dead links
The alsa-project documentation is now part of the kernel docs,
the original links are long dead, update links.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Mark Brown <broonie@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20220628165807.152191-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-06-30 10:56:27 +01:00
Takashi Iwai
0f1f7a6661 ALSA: usb-audio: Add quirk bits for enabling/disabling generic implicit fb
For making easier to test, add the new quirk_flags bits 17 and 18 to
enable and disable the generic implicit feedback mode.  The bit 17 is
equivalent with implicit_fb=1 option, applying the generic implicit
feedback sync mode.  OTOH, the bit 18 disables the implicit fb mode
forcibly.

Link: https://lore.kernel.org/r/20220421064101.12456-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-21 10:17:17 +02:00
Matt Kramer
ef248d9bd6 ALSA: hda/realtek: Add alc256-samsung-headphone fixup
This fixes the near-silence of the headphone jack on the ALC256-based
Samsung Galaxy Book Flex Alpha (NP730QCJ). The magic verbs were found
through trial and error, using known ALC298 hacks as inspiration. The
fixup is auto-enabled only when the NP730QCJ is detected. It can be
manually enabled using model=alc256-samsung-headphone.

Signed-off-by: Matt Kramer <mccleetus@gmail.com>
Link: https://lore.kernel.org/r/3168355.aeNJFYEL58@linus
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-03-22 21:51:02 +01:00
Sunrisepeak
76f22f4dca Documentation: sound: fix typo in control-names.rst
change 'cannel' to 'channel'

Signed-off-by: Sunrisepeak <speakshen@163.com>
Link: https://lore.kernel.org/r/20220227145204.16600-1-speakshen@163.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-03-02 09:42:26 +01:00
Bradley Scott
aa72394667 ALSA: hda/realtek: Add new alc285-hp-amp-init model
Adds a new "alc285-hp-amp-init" model that can be used to apply the ALC285
HP speaker amplifier initialization fixup to devices that are not already
known by passing "hda_model=alc285-hp-amp-init" to the
snd-sof-intel-hda-common module or "model=alc285-hp-amp-init" to the
snd-hda-intel module, depending on which is being used.

Signed-off-by: Bradley Scott <bscott@teksavvy.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211213162246.506838-1-bscott@teksavvy.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-12-14 10:44:26 +01:00
John Keeping
a6d968a3e8
ASoC: doc: update codec example code
As the codec API has evolved the documentation has not kept up and still
uses old fields that have been removed.  Update the examples to
represent the current API.

Signed-off-by: John Keeping <john@metanate.com>
Link: https://lore.kernel.org/r/20211024151731.360638-1-john@metanate.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-25 12:36:14 +01:00
Sugar Zhang
b0e3b0a707
ASoC: dmaengine: Introduce module option prealloc_buffer_size_kbytes
Currently, The fixed 512KB prealloc buffer size is too larger for
tiny memory kernel (such as 16MB memory). This patch adds the module
option "prealloc_buffer_size_kbytes" to specify prealloc buffer size.

It's suitable for cards which use the generic dmaengine pcm driver
with no config.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Link: https://lore.kernel.org/r/1632394246-59341-1-git-send-email-sugar.zhang@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-27 13:01:13 +01:00
Linus Torvalds
4ac6d90867 Yet another set of documentation changes:
- A reworking of PDF generation to yield better results for documents
    using CJK fonts in particular.
 
  - A new set of translations into traditional Chinese, a dialect for which
    I am assured there is a community of interested readers.
 
  - A lot more regular Chinese translation work as well.
 
 ...plus the usual assortment of updates, fixes, typo tweaks, etc.
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Merge tag 'docs-5.15' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "Yet another set of documentation changes:

   - A reworking of PDF generation to yield better results for documents
     using CJK fonts in particular.

   - A new set of translations into traditional Chinese, a dialect for
     which I am assured there is a community of interested readers.

   - A lot more regular Chinese translation work as well.

  ... plus the usual assortment of updates, fixes, typo tweaks, etc"

* tag 'docs-5.15' of git://git.lwn.net/linux: (55 commits)
  docs: sphinx-requirements: Move sphinx_rtd_theme to top
  docs: pdfdocs: Enable language-specific font choice of zh_TW translations
  docs: pdfdocs: Teach xeCJK about character classes of quotation marks
  docs: pdfdocs: Permit AutoFakeSlant for CJK fonts
  docs: pdfdocs: One-half spacing for CJK translations
  docs: pdfdocs: Add conf.py local to translations for ascii-art alignment
  docs: pdfdocs: Preserve inter-phrase space in Korean translations
  docs: pdfdocs: Choose Serif font as CJK mainfont if possible
  docs: pdfdocs: Add CJK-language-specific font settings
  docs: pdfdocs: Refactor config for CJK document
  scripts/kernel-doc: Override -Werror from KCFLAGS with KDOC_WERROR
  docs/zh_CN: Add zh_CN/accounting/psi.rst
  doc: align Italian translation
  Documentation/features/vm: riscv supports THP now
  docs/zh_CN: add infiniband user_verbs translation
  docs/zh_CN: add infiniband user_mad translation
  docs/zh_CN: add infiniband tag_matching translation
  docs/zh_CN: add infiniband sysfs translation
  docs/zh_CN: add infiniband opa_vnic translation
  docs/zh_CN: add infiniband ipoib translation
  ...
2021-09-01 18:49:47 -07:00
Takashi Iwai
6e41340994 ALSA: usb-audio: Move set-interface-first workaround into common quirk
The recent quirk for WALKMAN (commit 7af5a14371: "ALSA: usb-audio:
Fix regression on Sony WALKMAN NW-A45 DAC") may be required for other
devices and is worth to be put into the common quirk flags.
This patch adds a new quirk flag bit QUIRK_FLAG_SET_IFACE_FIRST and a
quirk table entry for the device.

Link: https://lore.kernel.org/r/20210824055720.9240-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-08-24 07:58:16 +02:00
Takashi Iwai
2231af793f ALSA: doc: Fix indentation warning
Fix a trivial warning for the indentation by putting an empty line:
  Documentation/sound/alsa-configuration.rst:2258: WARNING: Unexpected indentation.

Fixes: a39978ed6d ("ALSA: doc: Add the description of quirk_flags option for snd-usb-audio")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/r/20210823113518.30134-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-08-23 13:35:40 +02:00
Takashi Iwai
4a1672d183 ALSA: hda: Update documentation for aliasing via the model option
The previous patch allowed user to specify the aliasing of SSID via
model option for applying a quirk.  Update the documentation
accordingly.

Link: https://lore.kernel.org/r/20210823073722.14873-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-08-23 10:59:23 +02:00
Takashi Iwai
a39978ed6d ALSA: doc: Add the description of quirk_flags option for snd-usb-audio
Just briefly described about the new option.

Link: https://lore.kernel.org/r/20210729074404.19728-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-08-02 09:06:08 +02:00