summaryrefslogtreecommitdiff
path: root/Documentation/sound
AgeCommit message (Collapse)Author
2016-05-08ALSA: compress: fix some typoVinod Koul
Noticed two typos in Documentation, so fix them up Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-25ALSA: doc: fix spelling mistakesEric Engestrom
Signed-off-by: Eric Engestrom <eric@engestrom.ch> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-12ALSA: hda - Update documentationTakashi Iwai
Update the URLs for alsa-info.sh and hda-emu. Also drop the alsa-driver snapshot URL since it's been discontinued recently. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-08ALSA: Fix a typo in timestamping.txtMasanari Iida
This patch fix a spelling typo found in Documentation/sound/alsa/timestamping.txt Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-10Merge branch 'topic/hda-mst' into for-nextTakashi Iwai
2016-01-29ALSA: doc: Update option descriptions for snd-usb-audioTakashi Iwai
The autoclock and quirk_alias options have been added. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-29ALSA: Add documentation about HD-audio DP MSTLibin Yang
Add the documentation about HD-audio DP MST: 1. Overview 2. Jack Others will be added later. Signed-off-by: Libin Yang <libin.yang@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-11-16ASoC: img: Add documentation for SPDIF in controlsDamien.Horsley
Add documentation for the controls present in the SPDIF input controller driver Signed-off-by: Damien.Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-17ALSA: hda - Remove obsoleted documentationTakashi Iwai
It's totally outdated. We need a revised version later, maybe better integrated into kernel doc. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-06-09Doc: sound:oss: Fix typo in sound/ossMasanari Iida
This patch fix some spelling typo found in Documentations/sound/oss. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-19ALSA: hda - Sync HD-Audio-Models.txt for Realtek codecsTakashi Iwai
Added missing model entries and updated the codec names. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-19ALSA: hda - Add headset-mode* model options for ALC269 & coTakashi Iwai
Modern machines tend to have only one headset jack nowadays, and they often need these quirks. Let's allow them applicable via model option for ease of debugging. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-27ALSA: Docs: Add documentation for Jack kcontrolsJie Yang
Add documentation describing Jack kcontrols and how to use them with HD-Audio and ASoC. Signed-off-by: Jie Yang <yang.jie@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-13Merge tag 'asoc-v4.1-2' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for v4.1 More updates for v4.1, pretty much all drivers: - Lots of cleanups from Lars, mainly moving things from the CODEC level to the card level. - Continuing improvements to rcar from Morimoto-san, pcm512x from Howard and Peter, the Intel platforms from Vinod, Jie, Jin and Han, and to rt5670 from Bard. - Support for some non-DSP Qualcomm platforms, Google's Storm platform, Maxmim MAX98925 CODECs and the Ingenic JZ4780 SoC.
2015-03-21ALSA: ControlName.txt: Add 'Analogue' as a prefix for volume controlsHoward Mitchell
Currently 'Playback Volume' is the correct way to express an analogue volume control. However, this control name has initialisation defaults applied when using 'alsactl restore' and in some cases this is not appropriate. An example would be a control that has a selection of 0db and -6dB of gain that is intended to set the fullscale ouput voltage of a DAC. The TI pcm512x family of DAcs have such a control. In this case the device/driver reset defaults are preferred. Signed-off-by: Howard Mitchell <hm@hmbedded.co.uk> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-03-20ALSA: hda - Rename power_mgmt flag with power_save_nodeTakashi Iwai
David suggested that the name "power_mgmt" is too ambiguous. Rename the flag with a bit clearer one "power_save_node". Also, add the corresponding description to HD-Audio.txt, too. Reported-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-20ALSA: core: selection of audio_tstamp type and accuracy reportsPierre-Louis Bossart
Audio timestamps can be extracted from sample counters, wall clocks, PHC clocks (Ethernet AVB), on-demand synchronized snapshots. This patch provides the ability to report timestamping capabilities, select timestamp types and retrieve timestamp accuracy, if supported. Details can be found in Documentations/sound/alsa/timestamping.txt This functionality is introduced by reclaiming the reserved_aligned field introduced by commit9c7066aef4a5eb8e4063de28f06c508bf6f2963a in snd_pcm_status to provide userspace with selection/query capabilities. Additional driver_tstamp and audio_tstamp_accuracy fields are also added. snd_pcm_mmap_status remains a read-only structure with only the audio timestamp value accessible from user space. The selection of audio timestamp type is done through snd_pcm_status only This commit does not impact ABI and does not impact the default behavior. By default audio timestamp is aligned with hw_pointer and reports the DMA position. Backwards compatibility is handled by using the HDAudio wall clock for playback and the hw_ptr for all other cases. For timestamp selection a new STATUS_EXT ioctl is introduced with read/write parameters. Alsa-lib will be modified to make use of STATUS_EXT. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: hda - Add "eapd" model string for AD1986A codecTakashi Iwai
Also update the documentation to the latest state. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04ALSA: pcm: Add xrun_injection proc entryTakashi Iwai
This patch adds a new proc entry for PCM substreams to inject an XRUN. When a PCM substream is running and any value is written to its xrun_injection proc file, the driver triggers XRUN. This is a useful feature for debugging XRUN and error handling code paths. Note that this entry is enabled only when CONFIG_SND_PCM_XRUN_DEBUG is set. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04ALSA: pcm: Replace PCM hwptr tracking with tracepointsTakashi Iwai
ALSA PCM core has a mechanism tracking the PCM hwptr updates for analyzing XRUNs. But its log is limited (up to 10) and its log output is a kernel message, which is hard to handle. In this patch, the hwptr logging is moved to the tracing infrastructure instead of its own. Not only the hwptr updates but also XRUN and hwptr errors are recorded on the trace log, so that user can see such events at the exact timing. The new "snd_pcm" entry will appear in the tracing events: # ls -F /sys/kernel/debug/tracing/events/snd_pcm enable filter hw_ptr_error/ hwptr/ xrun/ The hwptr is for the regular hwptr update events. An event trace looks like: aplay-26187 [004] d..3 4012.834761: hwptr: pcmC0D0p/sub0: POS: pos=488, old=0, base=0, period=1024, buf=16384 "POS" shows the hwptr update by the explicit position update call and "IRQ" means the hwptr update by the interrupt, i.e. snd_pcm_period_elapsed() call. The "pos" is the passed ring-buffer offset by the caller, "old" is the previous hwptr, "base" is the hwptr base position, "period" and "buf" are period- and buffer-size of the target PCM substream. (Note that the hwptr position displayed here isn't the ring-buffer offset. It increments up to the PCM position boundary.) The XRUN event appears similarly, but without "pos" field. The hwptr error events appear with the PCM identifier and its reason string, such as "Lost interrupt?". The XRUN and hwptr error reports on kernel message are still left, can be turned on/off via xrun_debug proc like before. But the bit 3, 4, 5 and 6 bits of xrun_debug proc are dropped by this patch. Also, along with the change, the message strings have been reformatted to be a bit more consistent. Last but not least, the hwptr reporting is enabled only when CONFIG_SND_PCM_XRUN_DEBUG is set. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-20ALSA: Update control names documentationDavid Henningsson
This document was not really up-to-date. Add recent additions to this standard - based on what the HDA driver currently does, which is some kind of a de facto standard. Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-08-04ALSA: virtuoso: add Xonar Essence STX II supportClemens Ladisch
Just add the PCI ID for the STX II. It appears to work the same as the STX, except for the addition of the not-yet-supported daughterboard. Tested-by: Mario <fugazzi99@gmail.com> Tested-by: corubba <corubba@gmx.de> Cc: <stable@vger.kernel.org> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-07-15ALSA: hda - Update model list documentation for IDT codecsTakashi Iwai
Just add missing recent entries. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-06-25ALSA: hda - Adjust speaker HPF and add LED support for HP Spectre 13Takashi Iwai
HP Spectre 13 has the IDT 92HD95 codec, and BIOS seems to set the default high-pass filter in some "safer" range, which results in the very soft tone from the built-in speakers in contrast to Windows. Also, the mute LED control is missing, since 92HD95 codec still has no HP-specific fixups for GPIO setups. This patch adds these missing features: the HPF is adjusted by the vendor-specific verb, and the LED is set up from a DMI string (but with the default polarity = 0 assumption due to the incomplete BIOS on the given machine). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=74841 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-05-05doc: spelling error changesCarlos Garcia
Fixed multiple spelling errors. Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Carlos E. Garcia <carlos@cgarcia.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-02-27x86, platforms: Remove SGI Visual WorkstationH. Peter Anvin
The SGI Visual Workstation seems to be dead; remove support so we don't have to continue maintaining it. Cc: Andrey Panin <pazke@donpac.ru> Cc: Michael Reed <mdr@sgi.com> Link: http://lkml.kernel.org/r/530CFD6C.7040705@zytor.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-01-07ASoC: docs: Update the Overview documentLiam Girdwood
Update the ASoC overview to bring it up to date with the current code base and include multi-component. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-29ALSA: Fix typo in documentation/alsaMasanari Iida
Correct spelling typo in documentation/alsa Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-10-24Merge remote-tracking branch 'asoc/topic/doc' into asoc-nextMark Brown
2013-10-11ALSA: hda - Add a headset mic model for ALC269 and friendsDavid Henningsson
Using the headset mic model will cause the headset mic to be labeled "headset mic" instead of just "mic". Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-09-27ALSA: hda - Add documentation for CS4208 fixupsTakashi Iwai
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-09-23ASoC: Docs: Add documentation for Dynamic PCMLiam Girdwood
Add documentation describing DPCM with examples of a DSP based smart phone. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-23ASoC: Docs: Machine updateLiam Girdwood
Update the machine driver documentation and bring it up to date with the current code base. This includes multi component. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-23ASoC: Docs: update DAPMLiam Girdwood
Update the DAPM documentation and bring it up to date with the current code base. This includes API changes and new widgets. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-23ASoC: Docs: Platform updateLiam Girdwood
Update the platform class driver documentation and bring it up to date with the current code base. This includes multi component and DSP. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-23ASoC: Docs: Update codec documentationLiam Girdwood
Update the codec class driver documentation and bring it up to date with the current code base. This includes API changes, regmap and multi component. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-06Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree from Jiri Kosina: "The usual trivial updates all over the tree -- mostly typo fixes and documentation updates" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits) doc: Documentation/cputopology.txt fix typo treewide: Convert retrun typos to return Fix comment typo for init_cma_reserved_pageblock Documentation/trace: Correcting and extending tracepoint documentation mm/hotplug: fix a typo in Documentation/memory-hotplug.txt power: Documentation: Update s2ram link doc: fix a typo in Documentation/00-INDEX Documentation/printk-formats.txt: No casts needed for u64/s64 doc: Fix typo "is is" in Documentations treewide: Fix printks with 0x%# zram: doc fixes Documentation/kmemcheck: update kmemcheck documentation doc: documentation/hwspinlock.txt fix typo PM / Hibernate: add section for resume options doc: filesystems : Fix typo in Documentations/filesystems scsi/megaraid fixed several typos in comments ppc: init_32: Fix error typo "CONFIG_START_KERNEL" treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks page_isolation: Fix a comment typo in test_pages_isolated() doc: fix a typo about irq affinity ...
2013-08-27doc: Fix typo "is is" in DocumentationsMasanari Iida
Fix double words "is is" in Documentations. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Rob Landley <rob@landley.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-08-20Documentation/sound/alsa/ fix a typoStefan Huber
Corrected the word avarage to average in the file compress_offload.txt. Signed-off-by: Stefan Huber <steffhip@gmail.com> Signed-off-by: Matthias Schid <aircrach115@gmail.com> Signed-off-by: Simon Puels <simon.puels@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-07-29ALSA: hda - Fix invalid multi-io creation on VAIO-Z laptopsTakashi Iwai
VAIO-Z laptops need to use the specific DAC for the speaker output by some unknown reason although the codec itself supports the flexible connection. So we implemented a workaround by a new flag, no_primary_hp, for assigning the speaker pin first. This worked until 3.8 kernel, but it got broken because the driver learned for a better multi-io pin mapping, and not it can assign two mic pins for multi-io. Since the multi-io requires to be the primary output, the hp and two mic pins are assigned in prior to the speaker in the end. Although the machine has two mic pins, one of them is used as a noise- canceling headphone, thus it's no real retaskable mic jack. Thus, at best, we can disable the multi-io assignment and make the parser behavior back to the state before the multi-io. This patch adds again a new flag, no_multi_io, to indicate that the device has no multi-io capability, and set it in the fixup for VAIO-Z. The no_multi_io flag itself can be used generically, added via a helper line, too. Reported-by: Tormen <my.nl.abos@gmail.com> Reported-by: Adam Williamson <awilliam@redhat.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-07-29ALSA: hda - Remove analog mic pin override from STAC9228 dell-bios quirkTakashi Iwai
The current fixup for dell-bios model with STAC9228 codec contains the override of pin 0x0c for analog mic. But this is actually just adding a bogus pin and confuses the parser. Better to remove it for the auto-mic switching. Meanwhile, for a possible regression, keep the old configuration as model=dell-bios-amic, so that people can test it again quickly. Tested on Dell 1420n laptop. Reported-and-tested-by: Eric Shattow <lucent@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-07-25doc: Fix typo in doucmentationsMasanari Iida
Correct typo (double words) in documentations. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-06-17ALSA: hda - Update HD-Audio-Models.txtDavid Henningsson
Add new known codecs, and fix up tabs. Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-06-17ALSA: hda - Add models for Dell headset jacksDavid Henningsson
These headset jacks keep coming in on more and more platforms, and it's possible I don't catch them all. Make it easier to test and verify by making models. Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-04-15Merge tag 'asoc-v3.10' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Updates for v3.10 A bunch of changes here, the most interesting one subsystem wise being Morimoto-san's work to create snd_soc_component which doesn't do much for now but will be pretty important going forwards: - Add a new component object type which will form the basis of moving to a more generic handling of SoC and off-SoC components, contributed by Kuninori Morimoto. - A fairly large set of cleanups for the dmaengine integration from Lars-Peter Clausen, starting to move towards being able to have a generic driver based on the library. - Performance optimisations to DAPM from Ryo Tsutsui. - Support for mixer control sharing in DAPM from Stephen Warren. - Multiplatform ARM cleanups from Arnd Bergmann. - New CODEC drivers for AK5385 and TAS5086 from Daniel Mack.
2013-04-04Revert "ALSA: hda - Allow power_save_controller option override DCAPS"Takashi Iwai
This reverts commit 6ab317419c62850a71e2adfd1573e5ee87d8774f. The commit [6ab317419c: ALSA: hda - Allow power_save_controller option override DCAPS] changed the behavior of power_save_controller so that it can override the driver capability. This assumed that this option is rarely changed dynamically unlike power_save option. Too naive. It turned out that the user-space power-management tool tries to set power_save_controller option to 1 together with power_save option without knowing what's actually doing. This enabled forcibly the runtime PM of the controller, which is known to be broken om many chips thus disabled as default. So, the only sane fix is to revert this commit again. It was intended to ease debugging/testing for runtime PM enablement, but obviously we need another way for it. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=56171 Reported-and-tested-by: Nikita Tsukanov <keks9n@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-03-18Merge branch 'for-linus' into for-nextTakashi Iwai
Back-merged for refactoring beep stuff.
2013-03-17ALSA: documentation: Fix typo in Documentation/soundMasanari Iida
Correct spelling typos in Documentation/sound/alsa Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-03-07ALSA: hda - Consolidate add_in_jack_modes and add_out_jack_modes hintsTakashi Iwai
There is no big merit to distinguish these two hints. Instead, just have a single flag, add_jack_modes, for creating the jack mode enum ctls for both I/O directions. The hint string parser code is left and translated as add_jack_modes just for keeping compatibility. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-03-07ALSA: hda - Add the generic Headphone Mic featureTakashi Iwai
This patch improves the generic parser code to allow to set up the headphone jack as a mic input. User can enable this feature by giving hp_mic hint string. The former shared hp/mic feature for the single built-in mic is still retained. This detection can be disabled now via hp_mic_detect hint string, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
generated by cgit v0.10.2 at 2024-11-03 12:41:13 (GMT)