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* sys/dev: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-271-0/+2
| | | | | | | | | | | | | | | 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. Notes: svn path=/head/; revision=326255
* Sound Mega-commit. Expect further cleanup until code freeze.Ariff Abdullah2009-06-071-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For a slightly thorough explaination, please refer to [1] http://people.freebsd.org/~ariff/SOUND_4.TXT.html . Summary of changes includes: 1 Volume Per-Channel (vpc). Provides private / standalone volume control unique per-stream pcm channel without touching master volume / pcm. Applications can directly use SNDCTL_DSP_[GET|SET][PLAY|REC]VOL, or for backwards compatibility, SOUND_MIXER_PCM through the opened dsp device instead of /dev/mixer. Special "bypass" mode is enabled through /dev/mixer which will automatically detect if the adjustment is made through /dev/mixer and forward its request to this private volume controller. Changes to this volume object will not interfere with other channels. Requirements: - SNDCTL_DSP_[GET|SET][PLAY|REC]_VOL are newer ioctls (OSSv4) which require specific application modifications (preferred). - No modifications required for using bypass mode, so applications like mplayer or xmms should work out of the box. Kernel hints: - hint.pcm.%d.vpc (0 = disable vpc). Kernel sysctls: - hw.snd.vpc_mixer_bypass (default: 1). Enable or disable /dev/mixer bypass mode. - hw.snd.vpc_autoreset (default: 1). By default, closing/opening /dev/dsp will reset the volume back to 0 db gain/attenuation. Setting this to 0 will preserve its settings across device closing/opening. - hw.snd.vpc_reset (default: 0). Panic/reset button to reset all volume settings back to 0 db. - hw.snd.vpc_0db (default: 45). 0 db relative to linear mixer value. 2 High quality fixed-point Bandlimited SINC sampling rate converter, based on Julius O'Smith's Digital Audio Resampling - http://ccrma.stanford.edu/~jos/resample/. It includes a filter design script written in awk (the clumsiest joke I've ever written) - 100% 32bit fixed-point, 64bit accumulator. - Possibly among the fastest (if not fastest) of its kind. - Resampling quality is tunable, either runtime or during kernel compilation (FEEDER_RATE_PRESETS). - Quality can be further customized during kernel compilation by defining FEEDER_RATE_PRESETS in /etc/make.conf. Kernel sysctls: - hw.snd.feeder_rate_quality. 0 - Zero-order Hold (ZOH). Fastest, bad quality. 1 - Linear Interpolation (LINEAR). Slightly slower than ZOH, better quality but still does not eliminate aliasing. 2 - (and above) - Sinc Interpolation(SINC). Best quality. SINC quality always start from 2 and above. Rough quality comparisons: - http://people.freebsd.org/~ariff/z_comparison/ 3 Bit-perfect mode. Bypasses all feeder/dsp effects. Pure sound will be directly fed into the hardware. 4 Parametric (compile time) Software Equalizer (Bass/Treble mixer). Can be customized by defining FEEDER_EQ_PRESETS in /etc/make.conf. 5 Transparent/Adaptive Virtual Channel. Now you don't have to disable vchans in order to make digital format pass through. It also makes vchans more dynamic by choosing a better format/rate among all the concurrent streams, which means that dev.pcm.X.play.vchanformat/rate becomes sort of optional. 6 Exclusive Stream, with special open() mode O_EXCL. This will "mute" other concurrent vchan streams and only allow a single channel with O_EXCL set to keep producing sound. Other Changes: * most feeder_* stuffs are compilable in userland. Let's not speculate whether we should go all out for it (save that for FreeBSD 16.0-RELEASE). * kobj signature fixups, thanks to Andriy Gapon <avg@freebsd.org> * pull out channel mixing logic out of vchan.c and create its own feeder_mixer for world justice. * various refactoring here and there, for good or bad. * activation of few more OSSv4 ioctls() (see [1] above). * opt_snd.h for possible compile time configuration: (mostly for debugging purposes, don't try these at home) SND_DEBUG SND_DIAGNOSTIC SND_FEEDER_MULTIFORMAT SND_FEEDER_FULL_MULTIFORMAT SND_FEEDER_RATE_HP SND_PCM_64 SND_OLDSTEREO Manual page updates are on the way. Tested by: joel, Olivier SMEDTS <olivier at gid0 d org>, too many unsung / unnamed heroes. Notes: svn path=/head/; revision=193640
* s/WHETHERIN/WHETHER IN/ & s/THEPOSSIBILITY/THE POSSIBILITY/ in theJoel Dahl2007-01-311-2/+2
| | | | | | | | | license text. Approved by: imp Notes: svn path=/head/; revision=166364
* snd_ak452x is replaced by snd_spicds and snd_envy24ht is new.Alexander Leidinger2006-10-011-1/+2
| | | | Notes: svn path=/head/; revision=162933
* Connect snd_hda(4) to build process...Ariff Abdullah2006-10-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for Intel High Definition Audio Controller. This driver make a special guarantee that "playback" works on majority hardwares with minimal or without specific vendor quirk. This driver is a product of collaborative effort made by: Stephane E. Potvin <sepotvin@videotron.ca> Andrea Bittau <a.bittau@cs.ucl.ac.uk> Wesley Morgan <morganw@chemikals.org> Daniel Eischen <deischen@FreeBSD.org> Maxime Guillaud <bsd-ports@mguillaud.net> Ariff Abdullah <ariff@FreeBSD.org> ....and various people from freebsd-multimedia@FreeBSD.org Refer to snd_hda(4) for features and issues. Welcome To HDA. Sponsored by: Defenxis Sdn. Bhd. Notes: svn path=/head/; revision=162925
* - Connect the snd_emu10kx driver to the build. [1]Alexander Leidinger2006-07-151-1/+1
| | | | | | | | | - Bump __FreeBSD_version, no need to build the port now. Submitted by: Yuriy Tsibizov <Yuriy.Tsibizov@gfk.ru> [1] Notes: svn path=/head/; revision=160386
* Load the envy24 driver in the meta-module too.Alexander Leidinger2006-06-171-0/+2
| | | | Notes: svn path=/head/; revision=159693
* Remove the snd_es1888 module now that it isn't build anymore.Alexander Leidinger2006-06-171-1/+0
| | | | | | | Noticed by: Neil Short <neshort@yahoo.com> Notes: svn path=/head/; revision=159682
* Sort list of modules.Joel Dahl2006-01-231-1/+1
| | | | | | | Approved by: ariff Notes: svn path=/head/; revision=154709
* Support for ATI IXP 200 / 300 / 400 series audio controllers.Ariff Abdullah2005-11-271-0/+1
| | | | Notes: svn path=/head/; revision=152851
* Start each of the license/copyright comments with /*-, minor shuffle of linesWarner Losh2005-01-061-1/+1
| | | | Notes: svn path=/head/; revision=139749
* Do a pass over all modules in the kernel and make them return EOPNOTSUPPPoul-Henning Kamp2004-07-151-0/+1
| | | | | | | | | | | for unknown events. A number of modules return EINVAL in this instance, and I have left those alone for now and instead taught MOD_QUIESCE to accept this as "didn't do anything". Notes: svn path=/head/; revision=132199
* Add dependency to snd_via8233Michael Reifenberger2004-01-291-0/+1
| | | | Notes: svn path=/head/; revision=125195
* intel ich/ich2 driver - this needs some work but is functional enough forCameron Grant2001-07-011-0/+2
| | | | | | | | | | | | | | | | | | the impatient. Hardware... Provided by: ps Lost by: <censored> Found by: <censored> Not delivered by: Ashley Penney <ashp@unloved.org> Retrieved by: greid, Andrew McKay <andy@openirc.co.uk> Delivered by: Andrew McKay <andy@openirc.co.uk> PR: kern/25507 Submitted by: Katsurajima Naoto <raven@katsurajima.seya.yokohama.jp> Notes: svn path=/head/; revision=79047
* Initial version of Avance Logic ALS4000 pcm driver.Orion Hodson2001-04-231-0/+1
| | | | Notes: svn path=/head/; revision=75885
* pcm driver for S3 Sonicvibes chipset.Orion Hodson2001-03-191-0/+3
| | | | | | | Reviewed by: Cameron Grant Notes: svn path=/head/; revision=74429
* Driver for the ESS Maestro3 and Allegro sound chips. Note that due to theScott Long2001-02-011-0/+1
| | | | | | | | | amount of GPL'd firmware in the driver, it will only be built as a module. Approved by: cg Notes: svn path=/head/; revision=71901
* switch over to new sb8/sb16 codeCameron Grant2000-11-011-3/+2
| | | | Notes: svn path=/head/; revision=68140
* add commented-out dependancies on the new sb8 and sb16 driversCameron Grant2000-10-281-0/+2
| | | | Notes: svn path=/head/; revision=67806
* Enable the snd_maestro module and have the snd_driver module depend on it.John Baldwin2000-09-231-0/+1
| | | | | | | Approved by: cg Notes: svn path=/head/; revision=66302
* Missed a step when activating the solo driver.Nick Sayer2000-08-091-1/+1
| | | | Notes: svn path=/head/; revision=64466
* activate via82c686 audio driverCameron Grant2000-08-091-1/+1
| | | | Notes: svn path=/head/; revision=64441
* do-nothing module that depends on all sound driversCameron Grant2000-07-031-0/+70
Notes: svn path=/head/; revision=62484
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