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The correct suffix is 'y' for the kernel code and
'objs' for the user space. Update documentation.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240506085219.3403731-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Use the new DEFINE_SIMPLE_DEV_PM_OPS() instead of SIMPLE_DEV_PM_OPS()
for the example code. This allows us to drop CONFIG_PM_SLEEP ifdefs.
While we're at it, expand the driver definition instead of passing
directly via .driver.pm field. This seems to be a more common
pattern.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20240207155140.18238-30-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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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>
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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: 4d421eebe1465d ("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>
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- Update some outdated info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>
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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>
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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>
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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>
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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>
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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>
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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
...
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The conversion tools used during DocBook/LaTeX/html/Markdown->ReST
conversion and some cut-and-pasted text contain some characters that
aren't easily reachable on standard keyboards and/or could cause
troubles when parsed by the documentation build system.
Replace the occurences of the following characters:
- U+00a0 (' '): NO-BREAK SPACE
as it can cause lines being truncated on PDF output
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/21abe5fa495a05ac1f998ed66184a77e19ac89cc.1626947264.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Give brief explanations about the device-managed resources and the
newly introduced snd_devm_card_new() helper.
Link: https://lore.kernel.org/r/20210715075941.23332-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The doc currently mentions that the IEC958 Playback Default should be
exposed on the PCM iface, and the Playback Mask on the mixer iface.
It's a bit confusing to advise to have two related controls on two
separate ifaces, and it looks like the drivers that currently expose
those controls use any combination of the mixer and PCM ifaces.
Let's try to clarify the situation a bit, and encourage to at least have
the controls on the same iface.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20210525132354.297468-2-maxime@cerno.tech
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During the process of converting the documentation to reST, some links
were converted using the following wrong syntax (and sometimes using %20
instead of spaces):
`Display text <#section-name-in-html>`__
This syntax isn't valid according to the docutils' spec [1], but more
importantly, it is specific to HTML, since it uses '#' to link to an
HTML anchor.
The right syntax would instead use a docutils hyperlink reference as the
embedded URI to point to the section [2], that is:
`Display text <Section Name_>`__
This syntax works in both HTML and PDF.
The LaTeX toolchain doesn't mind the HTML anchor syntax when generating
the pdf documentation (make pdfdocs), that is, the build succeeds but
the links don't work, but that syntax causes errors when trying to build
using the not-yet-merged rst2pdf:
ValueError: format not resolved, probably missing URL scheme or undefined destination target for 'Forcing%20Quiescent%20States'
So, use the correct syntax in order to have it work in all different
output formats.
[1]: https://docutils.sourceforge.io/docs/ref/rst/restructuredtext.html#reference-names
[2]: https://docutils.sourceforge.io/docs/ref/rst/restructuredtext.html#embedded-uris-and-aliases
Fixes: ccc9971e2147 ("docs: rcu: convert some articles from html to ReST")
Fixes: c8cce10a62aa ("docs: Fix the reference labels in Locking.rst")
Fixes: e548cdeffcd8 ("docs-rst: convert kernel-locking to ReST")
Fixes: 7ddedebb03b7 ("ALSA: doc: ReSTize writing-an-alsa-driver document")
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20201228144537.135353-1-nfraprado@protonmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Some such markups are invalid, as reported by Sphinx:
./Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3317: WARNING: Unparseable C cross-reference: 'snd_rawmidi_transmit*'
Invalid C declaration: Expected end of definition. [error at 20]
snd_rawmidi_transmit*
--------------------^
./Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3917: WARNING: Unparseable C cross-reference: 'copy_from/to_user'
Invalid C declaration: Expected end of definition. [error at 9]
copy_from/to_user
---------^
The first case seems to be better replaced by a literal.
For the second one, let's generate cross-references, by
spliting it in two.
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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the :c:type shouldn't be used with structs with Sphinx 3,
as the C domain there uses .. c:struct for structs.
As we have the automarkup extension, let's just get rid of
all :c:type as a whole, as those will be automagically
marked as such.
This solves a bunch of warnings with Sphinx 3, like those:
.../Documentation/sound/kernel-api/writing-an-alsa-driver.rst:490: WARNING: Unparseable C cross-reference: 'calling snd_card_free'
Invalid C declaration: Expected end of definition. [error at 8]
calling snd_card_free
--------^
.../Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3328: WARNING: Unparseable C cross-reference: 'snd_rawmidi_transmit*'
Invalid C declaration: Expected end of definition. [error at 20]
snd_rawmidi_transmit*
--------------------^
.../Documentation/sound/kernel-api/writing-an-alsa-driver.rst:3928: WARNING: Unparseable C cross-reference: 'copy_from/to_user'
Invalid C declaration: Expected end of definition. [error at 9]
copy_from/to_user
---------^
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The sound API is documented on two different parts:
under Documentation/driver-api/sound.rst and under
Documentation/sound/kernel-api/alsa-driver-api.rst.
The alsa-driver-api.rst seems more complete, and APIs
are split per type. There's just one missing kernel-doc
markup there.
Add it and drop the duplicated one.
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.9
The biggest changes here one again come from Mormioto-san who has
continued his dilligent work cleaning up long standing issues in the
APIs, it's particularly nice to see the transition from digital_mute()
to mute_stream() finally completed. There's also been a lot of work on
the x86 code again, this time a big focus has been on cleaning up some
issues identified by various static tests, and on the Freescale systems.
Otherwise the biggest thing has been a lot of driver additions:
- Convert users of digital_mute() to mute_stream().
- Simplify I/O helper functions.
- Add a helper for getting the RTD from a substream.
- Many, many fixes and cleanups to the x86 code.
- New drivers for Freescale MQS and i.MX6sx, Intel KeemBay I2S, Maxim
MAX98360A and MAX98373 Soundwire, several Mediatek boards, nVidia
Tegra 186 and 210, RealTek RL6231, Samsung Midas and Aries boards (some
of the first phones I worked on!) and TI J721e EVM.
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GFP_KRENEL -> GFP_KERNEL
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/1596224129-7699-1-git-send-email-Julia.Lawall@inria.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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sound/soc/soc-io.c was merged into sound/soc/soc-component.c, so fixup
the Documentation to use the updated file name.
Error: Cannot open file ../sound/soc/soc-io.c
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno ../sound/soc/soc-io.c' failed with return code 1
Fixes: 460b42d162e3 ("ASoC: soc-component: merge soc-io.c into soc-component.c")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/a9f59f30-8cf2-ea82-567c-1706fd64fe62@infradead.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"As the diffstat shows we've had again a lot of works done for this
cycle: the majority of changes are the continued componentization and
code refactoring in ASoC, the tree-wide PCM API updates and cleanups
and SOF updates while a few ASoC driver updates are seen, too.
Here we go, some highlights:
Core:
- Finally y2038 support landed to ALSA ABI; some ioctls have been
extended and lots of tricks were applied
- Applying the new managed PCM buffer API to all drivers; the API
itself was already merged in 5.5
- The already deprecated dimension support in ALSA control API is
dropped completely now
- Verification of ALSA control elements to catch API misuses
ASoC:
- Further code refactorings and moving things to the component level
- Lots of updates and improvements on SOF / Intel drivers; now
including common HDMI driver and SoundWire support
- New driver support for Ingenic JZ4770, Mediatek MT6660, Qualcomm
WCD934x and WSA881x, and Realtek RT700, RT711, RT715, RT1011,
RT1015 and RT1308
HD-audio:
- Improved ring-buffer communications using waitqueue
- Drop the superfluous buffer preallocation on x86
Others:
- Many code cleanups, mostly constifications over the whole tree
- USB-audio: quirks for MOTU, Corsair Virtuoso, Line6 Helix
- FireWire: code refactoring for oxfw and dice drivers"
* tag 'sound-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (638 commits)
ALSA: usb-audio: add quirks for Line6 Helix devices fw>=2.82
ALSA: hda: Add Clevo W65_67SB the power_save blacklist
ASoC: soc-core: remove null_snd_soc_ops
ASoC: soc-pcm: add soc_rtd_trigger()
ASoC: soc-pcm: add soc_rtd_hw_free()
ASoC: soc-pcm: add soc_rtd_hw_params()
ASoC: soc-pcm: add soc_rtd_prepare()
ASoC: soc-pcm: add soc_rtd_shutdown()
ASoC: soc-pcm: add soc_rtd_startup()
ASoC: rt1015: add rt1015 amplifier driver
ASoC: madera: Correct some kernel doc
ASoC: topology: fix soc_tplg_fe_link_create() - link->dobj initialization order
ASoC: Intel: skl_hda_dsp_common: Fix global-out-of-bounds bug
ASoC: madera: Correct DMIC only input hook ups
ALSA: cs46xx: fix spelling mistake "to" -> "too"
ALSA: hda - Add docking station support for Lenovo Thinkpad T420s
ASoC: Add MediaTek MT6660 Speaker Amp Driver
ASoC: dt-bindings: rt5645: add suppliers
ASoC: max98090: fix deadlock in max98090_dapm_put_enum_double()
ASoC: dapm: add snd_soc_dapm_put_enum_double_locked
...
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ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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The reference to snd_info_entry_ops is rather read-only, so declare it
as a const pointer. This allows a bit more optimization.
There should be no functional changes by this patch.
Link: https://lore.kernel.org/r/20200103081714.9560-29-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Update the documentation for adding the const prefix to snd_device_ops
definitions as well.
Link: https://lore.kernel.org/r/20200103081714.9560-20-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Add the documentation about the new PCM sync_stop ops and
card->sync_irq field.
Link: https://lore.kernel.org/r/20191117085308.23915-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Mention that it's completely optional now.
Link: https://lore.kernel.org/r/20191117085308.23915-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Update the documentation for the newly introduced managed buffer
allocation mode accordingly. The old preallocation is no longer
recommended.
Link: https://lore.kernel.org/r/20191117085308.23915-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The macro will be removed soon later, so update the documentation to
reflect that as well.
Link: https://lore.kernel.org/r/20191105151856.10785-25-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The recent changes simplified the required setup for SG- and vmalloc-
buffers. Update the documentation accordingly.
Link: https://lore.kernel.org/r/20191105080138.1260-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Currently we pass the artificial device pointer to the allocation
helper in the case of SNDRV_DMA_TYPE_CONTINUOUS for passing the GFP
flags. But all common cases are the allocations with GFP_KERNEL, and
it's messy to put this in each place.
In this patch, the memalloc core helper is changed to accept the NULL
device pointer and it treats as the default mode, GFP_KERNEL, so that
all callers can omit the complex argument but just leave NULL.
Link: https://lore.kernel.org/r/20191105080138.1260-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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chip->ioport is dereferenced in two places, but the struct is
defined as follows:
struct mychip {
struct snd_card *card;
struct pci_dev *pci;
unsigned long port;
int irq;
};
Signed-off-by: Christina Quast <cquast@hanoverdisplays.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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We used to pass NULL to memory allocators for ISA devices due to
historical reasons. But we prefer rather a proper device object to be
assigned, so let's fix it by replacing snd_dma_isa_data() call with
card->dev reference, and kill snd_dma_isa_data() definition.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The PCM suspend procedure was changed for drivers, so that they don't
have to call snd_pcm_suspend*() in each callback any longer. Update
the documentation to adapt the changes.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Slightly brushing up and throw the old dust away from my ancient
writing-an-alsa-driver document. The contents aren't changed so much
but the obsoleted parts are dropped.
Also, remove the date and the version number. It's useless.
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Make sound doc refs valid.
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Another simple conversion from DocBook to ReST.
This required a few manual fixups and reformats, but the most of
contents are kept as is.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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A simple conversion of alsa-driver-api document from DocBook to ReST.
It's moved to the new Documentation/sound/kernel-api subdirectory that
will contain other ALSA kernel API documents.
The GPL legal note was removed, as it's superfluous (and doesn't fit
with ReST kernel docs pretty well).
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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