Cross Reference: /src/sys/dev/audio

History log of /src/sys/dev/audio
Revision	Date	Author	Comments
1.4	21-Jul-2021	skrll	need <sys/param.h> for COHERENCY_UNIT Minor KNF along the way.
1.3	11-Jan-2020	isaki	branches: 1.3.10; Remove old debug #ifdefs.
1.2	08-May-2019	isaki	branches: 1.2.2; 1.2.6; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	21-Apr-2019	isaki	branches: 1.1.2; file alaw.c was initially added on branch isaki-audio2.
1.1.2.1	21-Apr-2019	isaki	Reimplement audio subsystem. http://mail-index.netbsd.org/tech-kern/2019/04/01/msg024944.html At first step, audio and devices tightly coupled to audio. audio.c -> dev/audio.c: completely rewritten. mulaw.c -> audio/mulaw.c, audio/alaw.c: improve quality. audiovar.h, mulaw.h: should be removed. audio/linear.c: efficient new linear-linear converter. auconv.[ch]: should be removed but need some functions for now. aurateconv, auvolconv: removed (new audio.c handles it). audiobell.c: efficient and small new bell driver. audiobelldata.h: removed 4KB sine wave data. pad/pad.c: catch up audio, but not cloneable for now.
1.2.6.1	17-Jan-2020	ad	Sync with head.
1.2.2.3	08-Apr-2020	martin	Merge changes from current as of 20200406
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file alaw.c was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.3.10.1	01-Aug-2021	thorpej	Sync with HEAD.
1.147	15-Oct-2025	thorpej	Use device_setprop_string().
1.146	27-May-2024	nia	audio(4): Handle delta == 0 in audio_volume_(up\|down). These functions are used by the pmf power handler functions to deal with keyboard volume up/down key presses. However, delta is optional, and may not be returned by certain hardware drivers, including the earliest reference drivers (it is unlikely that these are used on any systems with pmf volume keys on the keyboard, but still). XXX it may make sense to have 16 as a minimum bound for delta, since pressing the volume up key on a keyboard 255 times doesn't sound particularly fun.
1.145	01-Oct-2023	mlelstv	Fix output for big-endian hardware. Also optimize the output scaling routine.
1.144	05-Jun-2023	mlelstv	We cannot handle input with precision != stride yet. Drain input buffer for unhandled input.
1.143	23-Apr-2023	mlelstv	print stage formats with AUDIO_DEBUG
1.142	23-Apr-2023	mlelstv	Be a little bit more informative on device timeout.
1.141	23-Apr-2023	mlelstv	Whitespace
1.140	23-Apr-2023	mlelstv	Add 24bit/32bit hardware support.
1.139	23-Apr-2023	mlelstv	Whitespace
1.138	23-Apr-2023	mlelstv	Make audio_device information available to drvctl and devpubd.
1.137	17-Apr-2023	mlelstv	Input and output codecs produce and consume internal audio data, so don't byteswap it.
1.136	25-Aug-2022	riastradh	branches: 1.136.4; audio(4): Fix bug in detaching audio16 and beyond. The minor numbers have only four bits for the unit number, so unit numbers past 15 can't be represented as is. Attempting to revoke them was once harmless, when the system made no attempt to avoid open/detach races; now it crashes because vdevgone assumes that the minor number can be mapped back to an autoconf device, but it's the wrong one. With this change, we stop trying to revoke units beyond 15, because they can't be opened anyway (which may be a bug in its own right, requiring expansion of the minor number encoding!). Reported-by: syzbot+6634ffd48997ae9b1eb0@syzkaller.appspotmail.com https://syzkaller.appspot.com/bug?id=db40a795a0b078f9b3b9fa0d3b7a9addcd2534de Reported-by: syzbot+d2df39bb3f72975c0a97@syzkaller.appspotmail.com https://syzkaller.appspot.com/bug?id=cbdd598287529cff9a8c4230263f7414df88db4b Reported-by: syzbot+1404969f68424f8f6e4b@syzkaller.appspotmail.com https://syzkaller.appspot.com/bug?id=6e4782408d0351769215fe433986f1844a546774 Reported-by: syzbot+2a4174a65609b3a00abb@syzkaller.appspotmail.com https://syzkaller.appspot.com/bug?id=886bbee544c2337683e24c801f9b632630a24681 Reported-by: syzbot+c0d9e49f22e571650736@syzkaller.appspotmail.com https://syzkaller.appspot.com/bug?id=7fb2e5576ebae731e859283f85c97747d2824f35 Reported-by: syzbot+583ba2cdb8aa6e59a4bf@syzkaller.appspotmail.com https://syzkaller.appspot.com/bug?id=2af44f5245eba572ebfb222070b9fd1378854303
1.135	13-Aug-2022	isaki	audio: Rework about usrbuf allocation. - Allocate the usrbuf from kmem(9) instead of uvm(9). The usrbuf has used uvm(9), in case mmap(2) might be issued later. However, despite the most apps don't use mmap(2), allocating (and reallocating) uvm(9) every time would be expensive. In addition, uvm(9) for recording usrbuf was totally pointless now. - For playback, the usrbuf memory will be allocated in pages. Because the usrbuf for playback is mostly near 64KB for backward compatibility. This will reduce reallocation especially from the initial ulaw to the most commonly used format like slinear16/2ch/48kHz. - When mmap(2) is called, it will replace the playback usrbuf from kmem(9) to uvm(9). - Prohibit changing playback format once mmap(2) is called. It follows netbsd-7. - For recording, the usrbuf memory will be allocated in the requested size every time as before. Because the usrbuf for recording is only one block and is enough small to the page in the most case. Inspired by PR kern/56947.
1.134	06-Jul-2022	riastradh	uvm(9): fo_mmap caller guarantees positive size. No functional change intended, just sprinkling assertions to make it clearer.
1.133	23-Apr-2022	isaki	audio(4): Fix a typo in comment. Remove several old comments.
1.132	23-Apr-2022	isaki	audio(4): Clean up about audio_realloc(). - audio_realloc() never returns NULL, so there is no need to check it. - audio_free() is no point in this case.
1.131	23-Apr-2022	isaki	audio(4): Remove no longer used counters. These were used at very early phase of development.
1.130	23-Apr-2022	isaki	audio(4): Restore(implement) AUDIO_GETIOFFS ioctl.
1.129	23-Apr-2022	isaki	audio(4): Fix an (unintended) minor behavior on AUDIO_FLUSH. On NetBSD7, when AUDIO_FLUSH was issued, .offset of AUDIO_GETOOFFS was reinitialized (to one block ahead from zero) or unchanged depend on whether the user encoding is hardware native or not (probably). I don't believe that it's intended or we need to maintain it. Now, AUDIO_FLUSH always clears the offset to zero.
1.128	21-Apr-2022	macallan	#if 0 now unused audio_track_is_record() to appease clang
1.127	20-Apr-2022	isaki	audio(4): Rework AUDIO_GETOOFFS. - Count .samples/.deltablks in blocks. It makes .deltablks integer wrap around safe. - Remove suspicious one block offset from .offset. I added the offset because it was observed so on NetBSD7. But according to manpage, it should not be. And it looks fine without the offset. - Related to that, remove a comment in AUDIO_WSEEK. Limit the user-visible buffer to usrbuf only.
1.126	20-Apr-2022	isaki	audio(4): Make recording buffer more robust. Previously, main buffer in recording track was usrbuf, which is the closest buffer to the userland. Because, this buffer arrangement was symmetrical with the playback track, and had affinity with the past implementation. However, in the current implementation, read(2) (from user application) takes recorded block out from inputbuf, which is the closest buffer to rmixer, to usrbuf. So it was not good way to use the usrbuf as main buffer. Now, usrbuf in recording track holds only fragment bytes in order to transfer to the userland, and main buffer in recording track is the inputbuf, the closest to rmixer. Buffer size of the inputbuf is also modified. Previously, it was less than 64KB or at least 4 blocks. This had affinity with playback track and the past implementation. But this was not appropriate for both formats with too large frames or too small frames. In large frames (for example, 192kHz/12ch), 184KB buffer would be allocated but it corresponds to only 40msec. In opposite, in small frames (for example, 8000Hz/1ch), 64KB buffer would be allocated and it corresponds to 4.1 seconds. But for such machines that have 8000Hz/1ch device, in-kernel 64KB memory would probably be expensive. Now, inputbuf will always be allocated 16(NBLKIN) blocks, regardless of its hardware format. It corresponds to 160msec on modern archs (if blk_ms=10), or 640msec on antique archs (if blk_ms=40).
1.125	20-Apr-2022	isaki	audio(4): Make debug messages better in audio_ioctl() and mixier_ioctl(). Divide by case. Reduce to one line if possible.
1.124	19-Apr-2022	riastradh	audio(4): Wait for opens to drain in detach. Otherwise detach may barge ahead and start freeing things before open has finished and is about to use them after free. Reported-by: syzbot+31d2619e72c2c8436cc9@syzkaller.appspotmail.com
1.123	09-Apr-2022	riastradh	audio(4): Use membar_acquire, not membar_enter. Cheaper and adequate to make an atomic_swap into a load-acquire.
1.122	31-Mar-2022	pgoyette	For device modules that provide both auto-config and /dev/xxx interfaces, make sure that initialization and destruction follow the proper sequence. This is triggered by the recent changes to the devsw stuff; per riastradh@ the required call sequence is: devsw_attach() config_init_component() or config_cf_attach() ... config_fini_component() or config_cf_detach() devsw_detach() While here, add a few missing calls to some of the detach routines. Testing of these changes has been limited to: 1. compile without build break 2. no related test failures from atf 3. modload/modunload work as well as before. No functional device testing done, since I don't have any of these devices. Let me know of any damage I might cause here! XXX Some of the modules affected by this commit are already XXX broken; see kern/56772. This commit does not break any additional modules (as far as I know).
1.121	28-Mar-2022	riastradh	audio(4): Use d_cfdriver/devtounit to avoid open/detach races.
1.120	26-Mar-2022	isaki	Add terminology comments.
1.119	26-Mar-2022	isaki	Improve comments.
1.118	26-Mar-2022	isaki	Remove a dead code in audio_track_record().
1.117	26-Mar-2022	isaki	Clarify the assertion in audio_rmixer_process(). By previous commit (r1.116), the assersion no longer fires even without this modification. But the condition was a bit inaccurate. There is no need to check the data length must be aligned to blocks here (though it also should be aligned now). What we should check here is that the tail must be aligned.
1.116	26-Mar-2022	isaki	Fix conditions that audio_read() calls audio_track_record(). audio_track_record() must be called when usrbuf has at least one free block. I hope that this will fix the panic reported in PR kern/56644. When an user process specifies the hardware format as its recording format (i.e., there is no track conversions), if the user process read(2) a small amount of data and the rmixer_process then runs, depending on the conditions, the panic may happen. I have never reproduced it because it's difficult to do intentionally. Thanks Y.Sugahara and riastradh@ for help and comments.
1.115	14-Mar-2022	riastradh	audio(4): Fix typo in previous -- atomic_store_release, not reease. Built the wrong kernel to compile-test AUDIO_DEBUG, oops.
1.114	14-Mar-2022	riastradh	audio(4): Membar audit. Won't affect anything on x86 because atomic r/m/w operations are always full sequential consistency barriers, but might potentially fix problems on, e.g., arm. Note 1: I'm not clear on why the track lock is a bespoke mutex made out of an atomic -- why not just mutex(9)? Note 2: I'm not convinced the audio_mlog_flush synchronization is correct; what happens if the softint runs on two CPUs at the same time and swaps mlog_wpage simultaneously? Note 3: Should maybe use atomic_load/store_relaxed for mlog_full and mlog_drop, and atomic_inc/dec for mlog_refs.
1.113	12-Dec-2021	andvar	fix various typos, mainly in comments.
1.112	10-Dec-2021	andvar	s/occured/occurred/ in comments, log messages and man pages.
1.111	05-Dec-2021	msaitoh	s/faciliate/facilitate/ in comment.
1.110	10-Oct-2021	riastradh	audio(9): Issue pserialize_perform outside sc_lock in audiodetach. Breaks another deadlock between sc_lock and high-priority xcalls at softint serial. With any luck, this should be the last such softint deadlock in audio!
1.109	10-Oct-2021	riastradh	audio(9): Call hw_if->getdev without sc_lock. Holding sc_lock is not necessary -- I reviewed all ~70 cases in-tree, and none of them rely on state protected by sc_lock. Essentially everything just copies from static data or data initialized at attach time. (Exceptions: tms320av110.c issues a bus_space_read_1, but I don't see any reason why that needs to be serialized; and uaudio.c reads from sc_dying, but that's not necessary and also not protected by sc_lock anyway.) Holding sc_lock is harmful because at least hdafg(4) can trigger module autoload that leads to pserialize_perform, which waits for logic to run at softint serial on all CPUs; at the same time, audio_softintr_rd/wr run at softint serial and take sc_lock, so this leads to deadlock.
1.108	26-Sep-2021	thorpej	Change the kqueue filterops::f_isfd field to filterops::f_flags, and define a flag FILTEROP_ISFD that has the meaning of the prior f_isfd. Field and flag name aligned with OpenBSD. This does not constitute a functional or ABI change, as the field location and size, and the value placed in that field, are the same as the previous code, but we're bumping __NetBSD_Version__ so 3rd-party module source code can adapt, as needed. NetBSD 9.99.89
1.107	07-Sep-2021	andvar	s/aquire/acquire/ in comments, also one typo fix acqure->acquire.
1.106	07-Aug-2021	thorpej	Merge thorpej-cfargs2.
1.105	21-Jul-2021	isaki	branches: 1.105.2; AUDIO_SETINFO: fix a bug that the gain and the balance could not be set at the same time. Fix PR kern/56308.
1.104	08-Jun-2021	riastradh	audio(4): Revert revision 1.96 and redo it another way. Instead of refusing to open /dev/audioN for writes when the device doesn't support playback, just refuse to issue writes. Although it seems more sensible to me to reject writable opens early on, and it seems Solaris does so, this makes querying device properties a little trickier and is a change to the NetBSD semantics.
1.103	04-Jun-2021	riastradh	audio(4): When closing /dev/audioN, drain before removing from list. Previously, in revision 1.100, I factored the SLIST_REMOVE out of audio_unlink and audio_close up into audioclose since it is now used by /dev/audio, /dev/audioctl, and /dev/mixer alike. But I didn't realize that the order 1. audio_track_drain 2. SLIST_REMOVE from sc_files was significant; it matters because audio_track_drain waits for wakeups that are delivered by hardware interrupts only to files listed in sc_files. This also fixes a bug introduced with the audiobell -- it was missing the SLIST_REMOVE altogether. For now, duplicate the SLIST_REMOVE calls in a few more places -- this is suboptimal but I want to make sure the logic works before factoring it all out to tidy up.
1.102	01-Jun-2021	riastradh	branches: 1.102.2; audio(4): audio_unlink never fails, so make it return void.
1.101	01-Jun-2021	riastradh	audio(4): Insert mixers and audioctls into sc_files on open too. This is necessary so that on detach we set file->dying before any operations, particularly audioclose, try to acquire a psref by the time the audio softc is gone. Candidate fix for PR kern/56164.
1.100	01-Jun-2021	riastradh	audio(4): No need to set file->dying when closing the file. No other file operations are possible by the time we get to audioclose.
1.99	01-Jun-2021	riastradh	audio(4): Grab sc->sc_cred under sc->sc_lock before freeing. Otherwise we may race with open, leaking a cred no longer in use and freeing a cred still in use.
1.98	01-Jun-2021	riastradh	audio(4): Use kmem_alloc(sizeof(*p)) style.
1.97	01-Jun-2021	riastradh	audio(4): Make sure to return ENXIO if device is being detached. Don't return 0 indicating successful open of an unusable device!
1.96	01-Jun-2021	riastradh	audio(4): Set AUMODE_PLAY/RECORD only if asked _and_ supported. If one is requested and _not_ supported, fail; otherwise we might enter audio_write with a null play track and crash on KASSERT.
1.95	02-May-2021	nia	audio: Only score hardware formats by channel count at count<=2 Scoring by channel count makes sense when you are using hardware that supports mono and stereo formats. However, if your hardware also supports surround formats, defaulting to those might be confusing. So, don't prefer them. Problem reported and fix tested by tcmart14 with a 2015 model Macbook Pro.
1.94	26-Apr-2021	thorpej	audioprint(): handle AUDIODEV_TYPE_AUX.
1.93	26-Apr-2021	thorpej	audio_attach_mi(): Be explicit about using the "audiobus" interface attribute, as the caller may be a device that carries more than one.
1.92	24-Apr-2021	thorpej	branches: 1.92.2; Merge thorpej-cfargs branch: Simplify and make extensible the config_search() / config_found() / config_attach() interfaces: rather than having different variants for which arguments you want pass along, just have a single call that takes a variadic list of tag-value arguments. Adjust all call sites: - Simplify wherever possible; don't pass along arguments that aren't actually needed. - Don't be explicit about what interface attribute is attaching if the device only has one. (More simplification.) - Add a config_probe() function to be used in indirect configuiration situations, making is visibly easier to see when indirect config is in play, and allowing for future change in semantics. (As of now, this is just a wrapper around config_match(), but that is an implementation detail.) Remove unnecessary or redundant interface attributes where they're not needed. There are currently 5 "cfargs" defined: - CFARG_SUBMATCH (submatch function for direct config) - CFARG_SEARCH (search function for indirect config) - CFARG_IATTR (interface attribte) - CFARG_LOCATORS (locators array) - CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles) ...and a sentinel value CFARG_EOL. Add some extra sanity checking to ensure that interface attributes aren't ambiguous. Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark ports to associate those device handles with device_t instance. This will trickle trough to more places over time (need back-end for pre-OFW Sun OBP; any others?).
1.91	14-Feb-2021	isaki	branches: 1.91.2; Add missing curlwp_bindx() corresponding to curlwp_bind(). Pointed out by riastradh@.
1.90	09-Feb-2021	isaki	Protect also audioopen() and audiobellopen() from audiodetach() with psref(9), as well as others(audioread, audiowrite, etc..). - Rename audio_file_enter to audio_sc_acquire_fromfile, audio_file_exit to audio_sc_release, for clarify. These are the reference counter for this sc. - Introduce audio_sc_acquire_foropen for audio{,bell}open. - audio_open needs to examine sc_dying again before inserting it into sc_files, in order to keep sc_files consistency. The race between audiodetach and audioopen is pointed out by riastradh@. Thank you for many advices.
1.89	09-Feb-2021	isaki	Change the lock conditions to call audio_unlink(). This can remove a different copy of audio_exlock_enter() in audio_unlink() and can use normal one. Also, in audiodetach(), this can set the exlock at more natual order (before calling audio_unlink()). No noticeable functional changes are intended. Thanks for comments, riastradh@.
1.88	15-Jan-2021	isaki	Improve error messages. - prefix MD device name if it's considered to be related to the MD driver. - revise some messages.
1.87	15-Jan-2021	isaki	Change (harmless) zero-length debug messages. sys/modules is compiled with -Wzero-length-format and this makes sys/modules compilable even if AUDIO_DEBUG is defined.
1.86	19-Dec-2020	thorpej	Use sel{record,remove}_knote().
1.85	13-Dec-2020	isaki	Revise comments.
1.84	13-Dec-2020	isaki	Fix a return value of audiopoll(). fo_poll is expected to return revents rather than errno on error.
1.83	13-Dec-2020	isaki	Avoid a dead lock in audiodetach, since rev 1.63. audio_unlink() must be called without exlock held (and audio_mixer_destroy() must be called with exlock held). This makes unplugging during playing/recording work (again). Reported by Julian Coleman on current-users: http://mail-index.netbsd.org/current-users/2020/12/10/msg040050.html
1.82	13-Dec-2020	isaki	Add missing newline.
1.81	09-Dec-2020	isaki	Rewrite error handling on audio_open(). This also fixes a few resource leaks on error case.
1.80	09-Dec-2020	isaki	Fix that audio_open() didn't halt the recording mixer correctly if fd_allocfile() failed, since rev 1.65. Will fix PR kern/55848.
1.79	07-Sep-2020	isaki	branches: 1.79.2; Fix misspellings in comment.
1.78	23-Aug-2020	isaki	Improve debug messages.
1.77	23-Aug-2020	isaki	Improve and update comments.
1.76	23-Aug-2020	isaki	Style fixes.
1.75	29-May-2020	isaki	Fix suspend/resume. - Revert temporary usage of sc_[pr]busy during suspend. These indicate whether the mixer needs to be restarted or not. - Avoid timeout error when about to suspend.
1.74	26-May-2020	nia	audio: Only restart recording mixer on resume if it's already been started
1.73	26-May-2020	nia	audio: remove comment that is no longer valid
1.72	26-May-2020	nia	audio: Restore compat with Solaris for 8-bit LINEAR. It's always signed, unless it's LINEAR8. PR kern/55175
1.71	26-May-2020	nia	audio: Fix logic for resuming when the device is in use. audio_[r/p]mixer_start should never be called when the device is marked busy. Resolves a panic on resume when audio is playing, PR kern/55301
1.70	23-May-2020	ad	Move proc_lock into the data segment. It was dynamically allocated because at the time we had mutex_obj_alloc() but not __cacheline_aligned.
1.69	01-May-2020	isaki	Move machine dependent AUDIO_BLK_MS default value to <machine/param.h>. If the port has __AUDIO_BLK_MS in <machine/param.h>, it will be used. Otherwise the default value (currently 10 msec) defined in audio.c will be used. This mechanism is for very old ports which cannot satisfactorily handle 10 msec block. Currently hppa, m68k, sh3, sparc(!64) and vax are. For port maintainers, if general models in your port cannot satisfactorily handle 10 msec block, please consider to define your suitable longer period (40 msec would be a good first choice). But please don't be eager to make the default value shorter. <machine/param.h> was discussed in source-changes-d. It's better than ifdef storm, or adding 60+ new header files in every arch/*/include/ directories for this. Thanks mrg@, ad@, and everyone. http://mail-index.netbsd.org/source-changes-d/2020/05/01/msg012572.html
1.68	29-Apr-2020	isaki	Set AUDIO_BLK_MS 40 msec on other old(slow) architectures not only m68k. Thanks tsutsui@ for comment about architecture choice. And move it from audiodef.h to audio.c as suggested by joerg@.
1.67	19-Apr-2020	isaki	Improve the blocksize notation. The blocksize is expressed in bytes, and the millisecond notation is supplementary information to make it easier to understand.
1.66	17-Apr-2020	isaki	Improve diagnostic messages.
1.65	26-Mar-2020	isaki	branches: 1.65.2; Fix to start recording immediately when open() with READ mode is called (unless pause). - Opening /dev/audio always initializes pause with false. Therefore it always starts recording. - Opening /dev/sound inherites pause from the sticky parameter. Therefore whether /dev/sound starts recording or not depends on the sticky pause parameter. This fixes two problems: - Opening /dev/audio didn't start recording after merging isaki-audio2. - Opening /dev/sound didn't start recording regardless of the sticky pause, probably since long time ago (at least netbsd-7).
1.64	07-Mar-2020	isaki	Fix/Update comments about allocm/freem.
1.63	07-Mar-2020	isaki	Split sc_lock and sc_exlock. Most (probably all) malloc/free (or routines which may sleep) now can be called without holding mutex. Pointed out by riastradh@.
1.62	04-Mar-2020	isaki	Restore backward compatibility with netbsd-7 audio. For sticky parameters (encoding, precision, channels, sample_rate and pause): - AUDIO_SETINFO for nonexistent track updates sticky parameters. - AUDIO_GETINFO for nonexistent track reads sticky parameters. For blocksize, hiwat, lowat and {play.record}.buffer_size: - AUDIO_SETINFO for nonexistent track does nothing. - AUDIO_GETINFO for nonexistent track returns dummy non-zero values. Nonexistent track is a playback track on O_RDONLY descriptor for example, or both tracks on /dev/audioctl.
1.61	01-Mar-2020	isaki	Improve an error message about round_blocksize.
1.60	01-Mar-2020	isaki	Fix wrong parameter displayed in debug messages.
1.59	01-Mar-2020	isaki	Reinitialize the sticky parameters whenever the hardware format is changed. When the number of the hardware channels becomes less than the number of channels that sticky parameters remember, subsequent open("/dev/sound") will fail without this treatment. This is for rev 1.43.
1.58	29-Feb-2020	isaki	Minor fix. audio_prinfo.pause is u_char, not bool.
1.57	29-Feb-2020	isaki	Release memories on audiobellclose. It's rest of the last commit.
1.56	23-Feb-2020	isaki	Prevent a race between audiodetach and fileops methods using psref(9). Fix PR kern/54427. Thank you so much riastradh@
1.55	23-Feb-2020	isaki	Improve error handling around audio_hw_probe(). It was difficult to return multiple errors.
1.54	23-Feb-2020	isaki	Make start_input/halt_input optional if the driver has no recording, make start_output/halt_output optional if the driver has no playback. And remove such never called functions.
1.53	22-Feb-2020	chs	remove some unnecessary includes of internal UVM headers.
1.52	22-Feb-2020	isaki	Make calling get_props() lockless. get_props() of all MD drivers now can be called without sc_lock.
1.51	22-Feb-2020	isaki	On audio_[pr]mixer_halt(), it's better to reset parameters in intr_lock.
1.50	22-Feb-2020	isaki	Add KASSERTs. audio_[pr]mixer_start() need exlock.
1.49	22-Feb-2020	isaki	Move #if DIAGNOSTIC..#endif to correct place. It should ignore stray interrupts regardless of DIAGNOSTIC.
1.48	22-Feb-2020	isaki	hw_if->query_format is already mandatory method. Drop null checks.
1.47	22-Feb-2020	isaki	Improve KASSERT messages.
1.46	22-Feb-2020	isaki	Change two aprint_error_dev() to device_printf() (and improve messages). This is also called from other than boot.
1.45	22-Feb-2020	isaki	const-ify. These arguments are no longer written back.
1.44	22-Feb-2020	isaki	Fix/Update comments.
1.43	22-Feb-2020	isaki	Limit the number of channels that userland apps can set (by AUDIO_SETINFO) to the number of channels supported by the hardware or less, if the hardware supports multi channels. - On monaural or stereo hardware, userland apps can always set 1ch or 2ch. The kernel (audio layer) can convert mono-stereo each other. - On 3ch (2.1ch) hardware, for example, userland apps can set 1, 2, or 3ch, but not 4ch or more. This allows userland apps to know actual number of channels supported by the hardware in the same way as before. PR kern/54973.
1.42	15-Feb-2020	isaki	Remove incorrect KASSERT(!mutex_owned()). Pointed out by riastradh@.
1.41	11-Jan-2020	isaki	Simplify async_mixer handling. - It makes FIOASYNC code in mixer_ioctl() symmetric. - For readability, mixer_async_{add,remove}() should take pid argument though pid is always curproc.
1.40	11-Jan-2020	isaki	Remove old debug #ifdefs.
1.39	08-Jan-2020	isaki	Fix an resource leak on audiobell close. audioclose() freed audio_file_t structure, but only audiobellclose didn't pass there. I change that all of freeing audio_file_t is done by each *_close().
1.38	08-Jan-2020	isaki	Remove obsoleted comment.
1.37	08-Jan-2020	isaki	branches: 1.37.2; Move mutex_exit() correct place to protect sc_async_mixer. Thanks maxv@!
1.36	27-Dec-2019	msaitoh	s/sucess/success/ in comment.
1.35	26-Dec-2019	isaki	Improve and simplify around audio_realloc().
1.34	26-Dec-2019	isaki	Use M_WAITOK instead of M_NOWAIT. These allocations don't require NOWAIT constraints. Will fix PR kern/54796.
1.33	06-Nov-2019	isaki	Fix a wrong calculation of recording ring buffer. Reported on http://mail-index.netbsd.org/current-users/2019/11/04/msg036976.html
1.32	18-Oct-2019	msaitoh	s/initalize/initialize/ in comment or printf message.
1.31	06-Sep-2019	isaki	Tune some debug message level. These messages are important for debugging hardware driver.
1.30	29-Aug-2019	isaki	Fix lock assertion on async I/O mode. psignal() must be called without any spin locks. Thanks maxv@!
1.29	23-Aug-2019	maxv	Add missing mutex, we were hitting a KASSERT.
1.28	10-Jul-2019	isaki	branches: 1.28.2; Use kmem_alloc/free() instead of old kern_malloc/free().
1.27	10-Jul-2019	isaki	Fix freem() argument. The 3rd argument is bufsize, not direction...
1.26	07-Jul-2019	isaki	Avoid memory reallocation on SET_FORMAT.
1.25	07-Jul-2019	isaki	Rearrange some KASSERT and debug messages, to sync with others.
1.24	07-Jul-2019	isaki	Fix to evaluate the validity of this track at earlier on audio_read(). It fixes a panic on read() against descriptor opened as O_RDWR on the half duplex device.
1.23	06-Jul-2019	isaki	Implement auto recovery of the mixing volume.
1.22	26-Jun-2019	isaki	Improve debug message and remove duplicated one.
1.21	26-Jun-2019	isaki	Improve audiobell (and interfaces with audio). - Generate pseudo sine wave if possible. It may improve timbre. If it cannot represent a sine wave, it falls back to a triangular wave or a rectangular wave. - Volume adjustment. - Calculate playback frequency based on mixer frequency. Now audiobellopen() initializes playback parameters other than sample_rate, and new audiobellsetrate() sets sample_rate.
1.20	25-Jun-2019	isaki	Put the lowered mixing volume back when all playback tracks are closed. TODO: about long life descriptor.
1.19	23-Jun-2019	isaki	Restore sysctl_teardown which was unintentionally dropped.
1.18	19-Jun-2019	isaki	Don't wait until a block is filled. This improves that short sound breaks.
1.17	12-Jun-2019	isaki	Fill silence if the last block of the first track is not filled.
1.16	10-Jun-2019	isaki	branches: 1.16.2; Use AUDIO_SCALEDOWN() macro rather than seemingly strange ifdefs. Discussed on source-changes-d.
1.15	10-Jun-2019	isaki	Add missing newline to some error messages.
1.14	10-Jun-2019	isaki	Call get_props() once at attach.
1.13	08-Jun-2019	isaki	Improve checking and displaying property. - Full/half duplex and independentness are valid only on bidirectional device. - MMAP is no longer hardware driver's property.
1.12	08-Jun-2019	isaki	Clean get_props(). - Make get_props() return AUDIO_PROP_{PLAYBACK,CAPTURE} properly. This eliminates need for audio.c to take care of such (old) drivers which don't return both of PLAYBACK and CAPTURE. - All get_props() doesn't need to return AUDIO_PROP_MMAP. It is handled in the audio layer now.
1.11	06-Jun-2019	isaki	Revert rev1.7. Don't take care of incorrect drivers. They should be fixed. PR kern/54264. OK'ed by nakayama@-san.
1.10	25-May-2019	isaki	Fix typo in comment.
1.9	23-May-2019	isaki	Remove unnecessary file lock. It has been introduced to prevent multiple syscalls entering simultaneously. But it's completely unnecessary. It fixes firefox problem in PR kern/54177.
1.8	21-May-2019	isaki	Adjust debug message. Inspired from PR kern/54177.
1.7	13-May-2019	nakayama	audio_open: On full duplex hardware, the flags passed to hw_if->open() is always (FREAD \| FWRITE). But some devices (e.g. uaudio) check its capabilities at open(), so unidirection devices like USB speakers always return EACCES. Avoid open() failure on such devices by checking the capabilities of the device and changing the flags passed to hw_if->open().
1.6	13-May-2019	nakayama	sysctl "multiuser" type is CTLTYPE_BOOL, so use bool instead of int.
1.5	13-May-2019	nakayama	audio_hw_probe: Return error if both play and record probes failed. Avoid audio is disabled on devices with only play like USB speakers.
1.4	13-May-2019	nakayama	audioattach: Output the cause of the audio device disabled along with the error code.
1.3	11-May-2019	maya	Don't use a confusing GCC extension. NFC
1.2	08-May-2019	isaki	Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	21-Apr-2019	isaki	branches: 1.1.2; file audio.c was initially added on branch isaki-audio2.
1.1.2.9	05-May-2019	isaki	Revive multiuser control.
1.1.2.8	04-May-2019	isaki	Improve comments.
1.1.2.7	04-May-2019	isaki	Move dev/audio_if.h -> dev/audio/audio_if.h
1.1.2.6	04-May-2019	isaki	Remove obsoleted methods in audio_hw_if. - drain: is handled in audio upper layer now. - mappage: is handled in audio upper layer now. - setfd: no one uses and it's meaningless now.
1.1.2.5	03-May-2019	isaki	Remove dev/audiovar.h. It already have been just a link to dev/audio/audiovar.h in this branch.
1.1.2.4	03-May-2019	isaki	Remove query_encoding and set_params interfaces from audio_hw_if and remove related backward compatible routines. All drivers were converted to use new query_format/set_format.
1.1.2.3	27-Apr-2019	isaki	Add audio_indexof_format(). It finds index matches with specified audio_param_t from array of audio_format_t. Formerly, it was auconv_set_converter() that convert userland params to the hardware native (linear) format and such conversion is unnecessary in audio2. But some drivers have gotten index from this format array using auconv_set_converter(). This function is an alternative to such usage.
1.1.2.2	24-Apr-2019	isaki	Accept if bufsize returned from round_buffersize() is a multiple of blksize.
1.1.2.1	21-Apr-2019	isaki	Reimplement audio subsystem. http://mail-index.netbsd.org/tech-kern/2019/04/01/msg024944.html At first step, audio and devices tightly coupled to audio. audio.c -> dev/audio.c: completely rewritten. mulaw.c -> audio/mulaw.c, audio/alaw.c: improve quality. audiovar.h, mulaw.h: should be removed. audio/linear.c: efficient new linear-linear converter. auconv.[ch]: should be removed but need some functions for now. aurateconv, auvolconv: removed (new audio.c handles it). audiobell.c: efficient and small new bell driver. audiobelldata.h: removed 4KB sine wave data. pad/pad.c: catch up audio, but not cloneable for now.
1.16.2.4	21-Apr-2020	martin	Sync with HEAD
1.16.2.3	13-Apr-2020	martin	Mostly merge changes from HEAD upto 20200411
1.16.2.2	10-Jun-2019	christos	Sync with HEAD
1.16.2.1	10-Jun-2019	christos	file audio.c was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.28.2.23	28-Jul-2021	snj	Pull up following revision(s) (requested by isaki in ticket #1325): sys/dev/audio/audio.c: revision 1.105 AUDIO_SETINFO: fix a bug that the gain and the balance could not be set at the same time. Fix PR kern/56308.
1.28.2.22	05-May-2021	martin	Pull up following revision(s) (requested by nia in ticket #1268): sys/dev/audio/audio.c: revision 1.95 audio: Only score hardware formats by channel count at count<=2 Scoring by channel count makes sense when you are using hardware that supports mono and stereo formats. However, if your hardware also supports surround formats, defaulting to those might be confusing. So, don't prefer them. Problem reported and fix tested by tcmart14 with a 2015 model Macbook Pro.
1.28.2.21	01-Mar-2021	martin	Pull up following revision(s) (requested by isaki in ticket #1219): sys/dev/audio/audio.c: revision 1.89 sys/dev/audio/audio.c: revision 1.90 sys/dev/audio/audio.c: revision 1.91 Change the lock conditions to call audio_unlink(). This can remove a different copy of audio_exlock_enter() in audio_unlink() and can use normal one. Also, in audiodetach(), this can set the exlock at more natual order (before calling audio_unlink()). No noticeable functional changes are intended. Thanks for comments, riastradh@. Protect also audioopen() and audiobellopen() from audiodetach() with psref(9), as well as others(audioread, audiowrite, etc..). - Rename audio_file_enter to audio_sc_acquire_fromfile, audio_file_exit to audio_sc_release, for clarify. These are the reference counter for this sc. - Introduce audio_sc_acquire_foropen for audio{,bell}open. - audio_open needs to examine sc_dying again before inserting it into sc_files, in order to keep sc_files consistency. The race between audiodetach and audioopen is pointed out by riastradh@. Thank you for many advices. Add missing curlwp_bindx() corresponding to curlwp_bind(). Pointed out by riastradh@.
1.28.2.20	28-Feb-2021	martin	Pull up following revision(s) (requested by isaki in ticket #1218): sys/dev/audio/audio.c: revision 1.84 Fix a return value of audiopoll(). fo_poll is expected to return revents rather than errno on error.
1.28.2.19	28-Feb-2021	martin	Pull up following revision(s) (requested by isaki in ticket #1217): sys/dev/audio/audio.c: revision 1.46 sys/dev/audio/audio.c: revision 1.82 sys/dev/audio/audio.c: revision 1.85 sys/dev/audio/audio.c: revision 1.87 sys/dev/audio/audio.c: revision 1.88 Change two aprint_error_dev() to device_printf() (and improve messages). This is also called from other than boot. Add missing newline. Revise comments. Change (harmless) zero-length debug messages. sys/modules is compiled with -Wzero-length-format and this makes sys/modules compilable even if AUDIO_DEBUG is defined. Improve error messages. - prefix MD device name if it's considered to be related to the MD driver. - revise some messages.
1.28.2.18	19-Dec-2020	martin	Pull up following revision(s) (requested by isaki in ticket #1158): sys/dev/audio/audio.c: revision 1.83 Avoid a dead lock in audiodetach, since rev 1.63. audio_unlink() must be called without exlock held (and audio_mixer_destroy() must be called with exlock held). This makes unplugging during playing/recording work (again). Reported by Julian Coleman on current-users: http://mail-index.netbsd.org/current-users/2020/12/10/msg040050.html
1.28.2.17	19-Dec-2020	martin	Pull up following revision(s) (requested by isaki in ticket #1156): sys/dev/audio/audio.c: revision 1.80 sys/dev/audio/audio.c: revision 1.81 Fix that audio_open() didn't halt the recording mixer correctly if fd_allocfile() failed, since rev 1.65. Will fix PR kern/55848. - Rewrite error handling on audio_open(). This also fixes a few resource leaks on error case.
1.28.2.16	07-Jun-2020	martin	Pull up following revision(s) (requested by isaki in ticket #950): sys/dev/audio/audio.c: revision 1.71 sys/dev/audio/audio.c: revision 1.73 sys/dev/audio/audio.c: revision 1.74 sys/dev/audio/audio.c: revision 1.75 sys/dev/audio/audiovar.h: revision 1.12 audio: Fix logic for resuming when the device is in use. audio_[r/p]mixer_start should never be called when the device is marked busy. Resolves a panic on resume when audio is playing, PR kern/55301 audio: remove comment that is no longer valid audio: Only restart recording mixer on resume if it's already been started Fix suspend/resume. - Revert temporary usage of sc_[pr]busy during suspend. These indicate whether the mixer needs to be restarted or not. - Avoid timeout error when about to suspend.
1.28.2.15	18-May-2020	martin	Pull up following revision(s) (requested by isaki in ticket #911): sys/dev/audio/audiodef.h: revision 1.13 sys/dev/audio/audiodef.h: revision 1.14 sys/arch/sparc/include/param.h: revision 1.74 sys/arch/evbarm/conf/GENERIC64: revision 1.148 sys/arch/sh3/include/param.h: revision 1.25 sys/arch/evbarm/conf/GENERIC: revision 1.75 sys/arch/m68k/include/param.h: revision 1.23 sys/arch/amd64/conf/GENERIC: revision 1.564 sys/arch/hppa/include/param.h: revision 1.27 sys/dev/audio/audio.c: revision 1.68 sys/arch/vax/include/param.h: revision 1.63 sys/dev/audio/audio.c: revision 1.69 Reduce default AUDIO_BLK_MS from 40msec to 10msec on all platform except m68k (m68k uses 40msec default as before). And remove the option from GENERIC. - It's not good idea to set such parameter in individual GENERICs. - 4msec is (probably no problem for most modern real hardware but) too aggressive to be default. - 10msec is too severe for antique machines but it's hard to draw a line. Set AUDIO_BLK_MS 40 msec on other old(slow) architectures not only m68k. Thanks tsutsui@ for comment about architecture choice. And move it from audiodef.h to audio.c as suggested by joerg@. Move machine dependent AUDIO_BLK_MS default value to <machine/param.h>. If the port has __AUDIO_BLK_MS in <machine/param.h>, it will be used. Otherwise the default value (currently 10 msec) defined in audio.c will be used. This mechanism is for very old ports which cannot satisfactorily handle 10 msec block. Currently hppa, m68k, sh3, sparc(!64) and vax are. For port maintainers, if general models in your port cannot satisfactorily handle 10 msec block, please consider to define your suitable longer period (40 msec would be a good first choice). But please don't be eager to make the default value shorter. <machine/param.h> was discussed in source-changes-d. It's better than ifdef storm, or adding 60+ new header files in every arch/*/include/ directories for this. Thanks mrg@, ad@, and everyone. http://mail-index.netbsd.org/source-changes-d/2020/05/01/msg012572.html
1.28.2.14	18-May-2020	martin	Pull up following revision(s) (requested by isaki in ticket #910): sys/dev/audio/audio.c: revision 1.49 sys/dev/audio/audio.c: revision 1.61 sys/dev/audio/audio.c: revision 1.66 sys/dev/audio/audio.c: revision 1.67 Move #if DIAGNOSTIC..#endif to correct place. It should ignore stray interrupts regardless of DIAGNOSTIC. Improve an error message about round_blocksize. Improve diagnostic messages. Improve the blocksize notation. The blocksize is expressed in bytes, and the millisecond notation is supplementary information to make it easier to understand.
1.28.2.13	18-May-2020	martin	Pull up following revision(s) (requested by isaki in ticket #909): sys/dev/audio/audio.c: revision 1.65 Fix to start recording immediately when open() with READ mode is called (unless pause). - Opening /dev/audio always initializes pause with false. Therefore it always starts recording. - Opening /dev/sound inherites pause from the sticky parameter. Therefore whether /dev/sound starts recording or not depends on the sticky pause parameter. This fixes two problems: - Opening /dev/audio didn't start recording after merging isaki-audio2. - Opening /dev/sound didn't start recording regardless of the sticky pause, probably since long time ago (at least netbsd-7).
1.28.2.12	30-Apr-2020	martin	Pull up following revision(s) (requested by isaki in ticket #877): sys/dev/audio/audio.c: revision 1.55 sys/dev/audio/audio.c: revision 1.41 sys/dev/audio/audio.c: revision 1.48 sys/dev/audio/audiovar.h: revision 1.7 sys/dev/audio/audio.c: revision 1.63 (via patch) sys/dev/audio/audiovar.h: revision 1.11 sys/dev/audio/audio.c: revision 1.64 Simplify async_mixer handling. - It makes FIOASYNC code in mixer_ioctl() symmetric. - For readability, mixer_async_{add,remove}() should take pid argument though pid is always curproc. hw_if->query_format is already mandatory method. Drop null checks. Improve error handling around audio_hw_probe(). It was difficult to return multiple errors. Split sc_lock and sc_exlock. Most (probably all) malloc/free (or routines which may sleep) now can be called without holding mutex. Pointed out by riastradh@. Fix/Update comments about allocm/freem.
1.28.2.11	30-Apr-2020	martin	Pull up following revision(s) (requested by isaki in ticket #876): sys/dev/audio/audio.c: revision 1.60 sys/dev/audio/audio.c: revision 1.62 Fix wrong parameter displayed in debug messages. Restore backward compatibility with netbsd-7 audio. For sticky parameters (encoding, precision, channels, sample_rate and pause): - AUDIO_SETINFO for nonexistent track updates sticky parameters. - AUDIO_GETINFO for nonexistent track reads sticky parameters. For blocksize, hiwat, lowat and {play.record}.buffer_size: - AUDIO_SETINFO for nonexistent track does nothing. - AUDIO_GETINFO for nonexistent track returns dummy non-zero values. Nonexistent track is a playback track on O_RDONLY descriptor for example, or both tracks on /dev/audioctl.
1.28.2.10	30-Apr-2020	martin	Pull up following revision(s) (requested by isaki in ticket #875): sys/dev/audio/audio.c: revision 1.59 share/man/man4/audio.4: revision 1.102 share/man/man4/audio.4: revision 1.103 sys/dev/audio/audio.c: revision 1.43 Limit the number of channels that userland apps can set (by AUDIO_SETINFO) to the number of channels supported by the hardware or less, if the hardware supports multi channels. - On monaural or stereo hardware, userland apps can always set 1ch or 2ch. The kernel (audio layer) can convert mono-stereo each other. - On 3ch (2.1ch) hardware, for example, userland apps can set 1, 2, or 3ch, but not 4ch or more. This allows userland apps to know actual number of channels supported by the hardware in the same way as before. PR kern/54973. Reinitialize the sticky parameters whenever the hardware format is changed. When the number of the hardware channels becomes less than the number of channels that sticky parameters remember, subsequent open("/dev/sound") will fail without this treatment. This is for rev 1.43. Add description about channel limitation introduced in audio.c 1.43. PR kern/54973. Remove trailing whitespace.
1.28.2.9	21-Mar-2020	martin	Pull up following revision(s) (requested by isaki in ticket #794): sys/dev/audio/audiodef.h: revision 1.10 sys/dev/audio/audio.c: revision 1.56 (via patch) sys/dev/audio/audio.c: revision 1.57 sys/dev/audio/audiovar.h: revision 1.8 sys/dev/audio/audio.c: revision 1.38 Remove obsoleted comment. Prevent a race between audiodetach and fileops methods using psref(9). Fix PR kern/54427. Thank you so much riastradh@ Release memories on audiobellclose. It's rest of the last commit.
1.28.2.8	21-Mar-2020	martin	Pull up following revision(s) (requested by isaki in ticket #793): sys/dev/audio/audio.c: revision 1.42 sys/dev/audio/audio.c: revision 1.47 sys/dev/audio/audiodef.h: revision 1.9 Remove incorrect KASSERT(!mutex_owned()). Pointed out by riastradh@. Improve KASSERT messages.
1.28.2.7	21-Jan-2020	martin	Pull up following revision(s) (requested by isaki in ticket #620): sys/dev/audio/audio.c: revision 1.39 Fix an resource leak on audiobell close. audioclose() freed audio_file_t structure, but only audiobellclose didn't pass there. I change that all of freeing audio_file_t is done by each *_close().
1.28.2.6	21-Jan-2020	martin	Pull up following revision(s) (requested by isaki in ticket #619): sys/dev/audio/audio.c: revision 1.37 Move mutex_exit() correct place to protect sc_async_mixer. Thanks maxv@!
1.28.2.5	02-Jan-2020	martin	Pull up following revision(s) (requested by isaki in ticket #593): sys/dev/audio/audio.c: revision 1.34 sys/dev/audio/audio.c: revision 1.35 Use M_WAITOK instead of M_NOWAIT. These allocations don't require NOWAIT constraints. Will fix PR kern/54796. - Improve and simplify around audio_realloc().
1.28.2.4	19-Nov-2019	martin	Pull up following revision(s) (requested by isaki in ticket #448): sys/dev/audio/audio.c: revision 1.33 Fix a wrong calculation of recording ring buffer. Reported on http://mail-index.netbsd.org/current-users/2019/11/04/msg036976.html
1.28.2.3	06-Oct-2019	martin	Pull up following revision(s) (requested by isaki in ticket #286): sys/dev/audio/audio.c: revision 1.31 Tune some debug message level. These messages are important for debugging hardware driver.
1.28.2.2	06-Oct-2019	martin	Pull up following revision(s) (requested by isaki in ticket #285): sys/dev/audio/audiovar.h: revision 1.5 sys/dev/audio/audio.c: revision 1.30 Fix lock assertion on async I/O mode. psignal() must be called without any spin locks. Thanks maxv@!
1.28.2.1	06-Oct-2019	martin	Pull up following revision(s) (requested by isaki in ticket #284): sys/dev/audio/audio.c: revision 1.29 Add missing mutex, we were hitting a KASSERT.
1.37.2.2	29-Feb-2020	ad	Sync with head.
1.37.2.1	17-Jan-2020	ad	Sync with head.
1.65.2.1	20-Apr-2020	bouyer	Sync with HEAD
1.79.2.3	03-Apr-2021	thorpej	Sync with HEAD.
1.79.2.2	03-Jan-2021	thorpej	Sync w/ HEAD.
1.79.2.1	14-Dec-2020	thorpej	Sync w/ HEAD.
1.91.2.8	06-Apr-2021	thorpej	audiosearch(): Remove a stray CFARG_LOCATORS tag.
1.91.2.7	05-Apr-2021	thorpej	config_match() -> config_probe() for the straight-forward indirect config cases. There are still a few odd balls using config_match() which should be sorted out later.
1.91.2.6	04-Apr-2021	thorpej	CFARG_SUBMATCH -> CFARG_SEARCH for the indirect configuration uses.
1.91.2.5	03-Apr-2021	thorpej	config_attach_loc() -> config_attach() with CFARG_LOCATORS argument.
1.91.2.4	28-Mar-2021	thorpej	audio only has one interface attribute, so no need to be explcit about it. audio also doesn't have locators, so don't pass any to config_search().
1.91.2.3	21-Mar-2021	thorpej	Give config_found() the same variadic arguments treatment as config_search(). This commit only adds the CFARG_EOL sentinel to the existing config_found() calls. Conversion of config_found_sm_loc() and config_found_ia() call sites will be in subsequent commits.
1.91.2.2	21-Mar-2021	thorpej	In "rescan" routines, always pass locators and the interface attribute straight through to config_search(). Also, for devices that carry only one interface attribute, no need to do an ifattr_match(), because rescan_with_cfdata() will have already validated that the parent is eligible, which includes an interface attribute check.
1.91.2.1	20-Mar-2021	thorpej	The proliferation if config_search_() and config_found_() combinations is a little absurd, so begin to tidy this up: - Introduce a new cfarg_t enumerated type, that defines the types of tag-value variadic arguments that can be passed to the various config_() functions (CFARG_SUBMATCH, CFARG_IATTR, and CFARG_LOCATORS, for now, plus a CFARG_EOL sentinel). - Collapse config_search_() into config_search() that takes these variadic arguments. - Convert all call sites of config_search_*() to the new signature. Noticed several incorrect usages along the way, which will be audited in a future commit.
1.92.2.3	01-Aug-2021	thorpej	Sync with HEAD.
1.92.2.2	17-Jun-2021	thorpej	Sync w/ HEAD.
1.92.2.1	13-May-2021	thorpej	Sync with HEAD.
1.102.2.1	06-Jun-2021	cjep	sync with head
1.105.2.1	04-Aug-2021	thorpej	Adapt to CFARGS().
1.136.4.1	26-Mar-2024	martin	Pull up following revision(s) (requested by mlelstv in ticket #650): sys/dev/audio/audio.c: revision 1.137 Input and output codecs produce and consume internal audio data, so don't byteswap it.
1.2	08-May-2019	isaki	branches: 1.2.2; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	04-May-2019	isaki	branches: 1.1.2; file audio_dai.h was initially added on branch isaki-audio2.
1.1.2.2	04-May-2019	isaki	Move dev/audio_if.h -> dev/audio/audio_if.h
1.1.2.1	04-May-2019	isaki	Move dev/audio_dai.h -> dev/audio/audio_dai.h
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file audio_dai.h was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.3	13-Sep-2020	isaki	Support audio descriptor for fstat(1). sys/dev/audio/*.h: export only what we need for fstat.
1.2	08-May-2019	isaki	branches: 1.2.2; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	04-May-2019	isaki	branches: 1.1.2; file audio_if.h was initially added on branch isaki-audio2.
1.1.2.2	08-May-2019	isaki	Good bye stream_filter.
1.1.2.1	04-May-2019	isaki	Move dev/audio_if.h -> dev/audio/audio_if.h
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file audio_if.h was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.5	21-Jul-2021	skrll	need <sys/param.h> for COHERENCY_UNIT Minor KNF along the way.
1.4	20-Mar-2021	isaki	branches: 1.4.2; Fix and improve the buffer length calculation to avoid zero length even if blk_ms is small. This fixes PR kern/56059.
1.3	26-Jun-2019	isaki	branches: 1.3.2; 1.3.10; 1.3.12; Improve audiobell (and interfaces with audio). - Generate pseudo sine wave if possible. It may improve timbre. If it cannot represent a sine wave, it falls back to a triangular wave or a rectangular wave. - Volume adjustment. - Calculate playback frequency based on mixer frequency. Now audiobellopen() initializes playback parameters other than sample_rate, and new audiobellsetrate() sets sample_rate.
1.2	08-May-2019	isaki	branches: 1.2.2; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	04-May-2019	isaki	branches: 1.1.2; file audiobell.c was initially added on branch isaki-audio2.
1.1.2.2	04-May-2019	isaki	Move dev/audio_if.h -> dev/audio/audio_if.h
1.1.2.1	04-May-2019	isaki	Move dev/audiobell* -> dev/audio/audiobell*.
1.2.2.3	13-Apr-2020	martin	Mostly merge changes from HEAD upto 20200411
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file audiobell.c was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.3.12.1	03-Apr-2021	thorpej	Sync with HEAD.
1.3.10.1	03-Apr-2021	thorpej	Sync with HEAD.
1.3.2.1	06-Apr-2021	martin	Pull up following revision(s) (requested by isaki in ticket #1241): sys/dev/audio/audiobell.c: revision 1.4 Fix and improve the buffer length calculation to avoid zero length even if blk_ms is small. This fixes PR kern/56059.
1.4.2.1	01-Aug-2021	thorpej	Sync with HEAD.
1.2	08-May-2019	isaki	branches: 1.2.2; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	04-May-2019	isaki	branches: 1.1.2; file audiobellvar.h was initially added on branch isaki-audio2.
1.1.2.1	04-May-2019	isaki	Move dev/audiobell* -> dev/audio/audiobell*.
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file audiobellvar.h was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.20	13-Aug-2022	isaki	audio: Rework about usrbuf allocation. - Allocate the usrbuf from kmem(9) instead of uvm(9). The usrbuf has used uvm(9), in case mmap(2) might be issued later. However, despite the most apps don't use mmap(2), allocating (and reallocating) uvm(9) every time would be expensive. In addition, uvm(9) for recording usrbuf was totally pointless now. - For playback, the usrbuf memory will be allocated in pages. Because the usrbuf for playback is mostly near 64KB for backward compatibility. This will reduce reallocation especially from the initial ulaw to the most commonly used format like slinear16/2ch/48kHz. - When mmap(2) is called, it will replace the playback usrbuf from kmem(9) to uvm(9). - Prohibit changing playback format once mmap(2) is called. It follows netbsd-7. - For recording, the usrbuf memory will be allocated in the requested size every time as before. Because the usrbuf for recording is only one block and is enough small to the page in the most case. Inspired by PR kern/56947.
1.19	23-Apr-2022	isaki	audio(4): Remove no longer used counters. These were used at very early phase of development.
1.18	20-Apr-2022	isaki	audio(4): Rework AUDIO_GETOOFFS. - Count .samples/.deltablks in blocks. It makes .deltablks integer wrap around safe. - Remove suspicious one block offset from .offset. I added the offset because it was observed so on NetBSD7. But according to manpage, it should not be. And it looks fine without the offset. - Related to that, remove a comment in AUDIO_WSEEK. Limit the user-visible buffer to usrbuf only.
1.17	20-Apr-2022	isaki	audio(4): Make recording buffer more robust. Previously, main buffer in recording track was usrbuf, which is the closest buffer to the userland. Because, this buffer arrangement was symmetrical with the playback track, and had affinity with the past implementation. However, in the current implementation, read(2) (from user application) takes recorded block out from inputbuf, which is the closest buffer to rmixer, to usrbuf. So it was not good way to use the usrbuf as main buffer. Now, usrbuf in recording track holds only fragment bytes in order to transfer to the userland, and main buffer in recording track is the inputbuf, the closest to rmixer. Buffer size of the inputbuf is also modified. Previously, it was less than 64KB or at least 4 blocks. This had affinity with playback track and the past implementation. But this was not appropriate for both formats with too large frames or too small frames. In large frames (for example, 192kHz/12ch), 184KB buffer would be allocated but it corresponds to only 40msec. In opposite, in small frames (for example, 8000Hz/1ch), 64KB buffer would be allocated and it corresponds to 4.1 seconds. But for such machines that have 8000Hz/1ch device, in-kernel 64KB memory would probably be expensive. Now, inputbuf will always be allocated 16(NBLKIN) blocks, regardless of its hardware format. It corresponds to 160msec on modern archs (if blk_ms=10), or 640msec on antique archs (if blk_ms=40).
1.16	21-Aug-2021	andvar	s/recoding/recording/ in comments where it didn't actually mean recoding.
1.15	13-Sep-2020	isaki	Support audio descriptor for fstat(1). sys/dev/audio/*.h: export only what we need for fstat.
1.14	29-Apr-2020	isaki	Set AUDIO_BLK_MS 40 msec on other old(slow) architectures not only m68k. Thanks tsutsui@ for comment about architecture choice. And move it from audiodef.h to audio.c as suggested by joerg@.
1.13	28-Mar-2020	isaki	Reduce default AUDIO_BLK_MS from 40msec to 10msec on all platform except m68k (m68k uses 40msec default as before). And remove the option from GENERIC. - It's not good idea to set such parameter in individual GENERICs. - 4msec is (probably no problem for most modern real hardware but) too aggressive to be default. - 10msec is too severe for antique machines but it's hard to draw a line.
1.12	05-Mar-2020	riastradh	Revert "Include opt_diagnostic.h for DIAGNOSTIC." This did not do what I thought it did. opt_diagnostic.h is only for the unused _DIAGNOSTIC, which seems like an abortive attempt to incrementally convert DIAGNOSTIC to an opt_*.h option rather than a command-line option.
1.11	05-Mar-2020	riastradh	Include opt_diagnostic.h for DIAGNOSTIC. ...at least, in header files, which may not have already included libkern.h.
1.10	23-Feb-2020	isaki	Prevent a race between audiodetach and fileops methods using psref(9). Fix PR kern/54427. Thank you so much riastradh@
1.9	22-Feb-2020	isaki	Improve KASSERT messages.
1.8	25-Jan-2020	jmcneill	defopt AUDIO_BLK_MS
1.7	06-Jul-2019	isaki	branches: 1.7.2; 1.7.4; Implement auto recovery of the mixing volume.
1.6	26-Jun-2019	isaki	Improve audiobell (and interfaces with audio). - Generate pseudo sine wave if possible. It may improve timbre. If it cannot represent a sine wave, it falls back to a triangular wave or a rectangular wave. - Volume adjustment. - Calculate playback frequency based on mixer frequency. Now audiobellopen() initializes playback parameters other than sample_rate, and new audiobellsetrate() sets sample_rate.
1.5	25-Jun-2019	isaki	Put the lowered mixing volume back when all playback tracks are closed. TODO: about long life descriptor.
1.4	10-Jun-2019	isaki	branches: 1.4.2; Use AUDIO_SCALEDOWN() macro rather than seemingly strange ifdefs. Discussed on source-changes-d.
1.3	23-May-2019	isaki	Remove unnecessary file lock. It has been introduced to prevent multiple syscalls entering simultaneously. But it's completely unnecessary. It fixes firefox problem in PR kern/54177.
1.2	08-May-2019	isaki	Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	21-Apr-2019	isaki	branches: 1.1.2; file audiodef.h was initially added on branch isaki-audio2.
1.1.2.2	24-Apr-2019	isaki	Accept if bufsize returned from round_buffersize() is a multiple of blksize.
1.1.2.1	21-Apr-2019	isaki	Reimplement audio subsystem. http://mail-index.netbsd.org/tech-kern/2019/04/01/msg024944.html At first step, audio and devices tightly coupled to audio. audio.c -> dev/audio.c: completely rewritten. mulaw.c -> audio/mulaw.c, audio/alaw.c: improve quality. audiovar.h, mulaw.h: should be removed. audio/linear.c: efficient new linear-linear converter. auconv.[ch]: should be removed but need some functions for now. aurateconv, auvolconv: removed (new audio.c handles it). audiobell.c: efficient and small new bell driver. audiobelldata.h: removed 4KB sine wave data. pad/pad.c: catch up audio, but not cloneable for now.
1.4.2.4	13-Apr-2020	martin	Mostly merge changes from HEAD upto 20200411
1.4.2.3	08-Apr-2020	martin	Merge changes from current as of 20200406
1.4.2.2	10-Jun-2019	christos	Sync with HEAD
1.4.2.1	10-Jun-2019	christos	file audiodef.h was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.7.4.2	29-Feb-2020	ad	Sync with head.
1.7.4.1	25-Jan-2020	ad	Sync with head.
1.7.2.4	18-May-2020	martin	Pull up following revision(s) (requested by isaki in ticket #911): sys/dev/audio/audiodef.h: revision 1.13 sys/dev/audio/audiodef.h: revision 1.14 sys/arch/sparc/include/param.h: revision 1.74 sys/arch/evbarm/conf/GENERIC64: revision 1.148 sys/arch/sh3/include/param.h: revision 1.25 sys/arch/evbarm/conf/GENERIC: revision 1.75 sys/arch/m68k/include/param.h: revision 1.23 sys/arch/amd64/conf/GENERIC: revision 1.564 sys/arch/hppa/include/param.h: revision 1.27 sys/dev/audio/audio.c: revision 1.68 sys/arch/vax/include/param.h: revision 1.63 sys/dev/audio/audio.c: revision 1.69 Reduce default AUDIO_BLK_MS from 40msec to 10msec on all platform except m68k (m68k uses 40msec default as before). And remove the option from GENERIC. - It's not good idea to set such parameter in individual GENERICs. - 4msec is (probably no problem for most modern real hardware but) too aggressive to be default. - 10msec is too severe for antique machines but it's hard to draw a line. Set AUDIO_BLK_MS 40 msec on other old(slow) architectures not only m68k. Thanks tsutsui@ for comment about architecture choice. And move it from audiodef.h to audio.c as suggested by joerg@. Move machine dependent AUDIO_BLK_MS default value to <machine/param.h>. If the port has __AUDIO_BLK_MS in <machine/param.h>, it will be used. Otherwise the default value (currently 10 msec) defined in audio.c will be used. This mechanism is for very old ports which cannot satisfactorily handle 10 msec block. Currently hppa, m68k, sh3, sparc(!64) and vax are. For port maintainers, if general models in your port cannot satisfactorily handle 10 msec block, please consider to define your suitable longer period (40 msec would be a good first choice). But please don't be eager to make the default value shorter. <machine/param.h> was discussed in source-changes-d. It's better than ifdef storm, or adding 60+ new header files in every arch/*/include/ directories for this. Thanks mrg@, ad@, and everyone. http://mail-index.netbsd.org/source-changes-d/2020/05/01/msg012572.html
1.7.2.3	21-Mar-2020	martin	Pull up following revision(s) (requested by isaki in ticket #794): sys/dev/audio/audiodef.h: revision 1.10 sys/dev/audio/audio.c: revision 1.56 (via patch) sys/dev/audio/audio.c: revision 1.57 sys/dev/audio/audiovar.h: revision 1.8 sys/dev/audio/audio.c: revision 1.38 Remove obsoleted comment. Prevent a race between audiodetach and fileops methods using psref(9). Fix PR kern/54427. Thank you so much riastradh@ Release memories on audiobellclose. It's rest of the last commit.
1.7.2.2	21-Mar-2020	martin	Pull up following revision(s) (requested by isaki in ticket #793): sys/dev/audio/audio.c: revision 1.42 sys/dev/audio/audio.c: revision 1.47 sys/dev/audio/audiodef.h: revision 1.9 Remove incorrect KASSERT(!mutex_owned()). Pointed out by riastradh@. Improve KASSERT messages.
1.7.2.1	27-Jan-2020	martin	Pull up following revision(s) (requested by nia in ticket #657): sys/dev/files.audio: revision 1.13 sys/dev/files.audio: revision 1.14 sys/arch/amd64/conf/GENERIC: revision 1.559 sys/arch/evbarm/conf/GENERIC: revision 1.71 sys/arch/evbarm/conf/GENERIC64: revision 1.134 sys/dev/audio/audiodef.h: revision 1.8 Set AUDIO_BLK_MS=4 - unlikely to cause significant overhead on non-m68k. Several of us have been setting this in /etc/sysctl.conf for months, to get better performance from applications that require synced audio, etc. It's also mentioned as a good value with low overhead on most archs here: href="https://mail-index.netbsd.org/tech-kern/2019/12/07/msg025830.html We could probably go lower, but this is low enough to make most/all software run well, removing frame drops. It's also low enough to get emulators/mednafen to stop complaining in the console. defopt AUDIO_BLK_MS Follow amd64 and set AUDIO_BLK_MS=4 by default defopt -> defparam (oops)
1.2	08-May-2019	isaki	branches: 1.2.2; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	21-Apr-2019	isaki	branches: 1.1.2; file audiofil.h was initially added on branch isaki-audio2.
1.1.2.1	21-Apr-2019	isaki	Reimplement audio subsystem. http://mail-index.netbsd.org/tech-kern/2019/04/01/msg024944.html At first step, audio and devices tightly coupled to audio. audio.c -> dev/audio.c: completely rewritten. mulaw.c -> audio/mulaw.c, audio/alaw.c: improve quality. audiovar.h, mulaw.h: should be removed. audio/linear.c: efficient new linear-linear converter. auconv.[ch]: should be removed but need some functions for now. aurateconv, auvolconv: removed (new audio.c handles it). audiobell.c: efficient and small new bell driver. audiobelldata.h: removed 4KB sine wave data. pad/pad.c: catch up audio, but not cloneable for now.
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file audiofil.h was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.13	23-Apr-2023	mlelstv	Enable 24bit support by default.
1.12	29-May-2020	isaki	Fix suspend/resume. - Revert temporary usage of sc_[pr]busy during suspend. These indicate whether the mixer needs to be restarted or not. - Avoid timeout error when about to suspend.
1.11	07-Mar-2020	isaki	Split sc_lock and sc_exlock. Most (probably all) malloc/free (or routines which may sleep) now can be called without holding mutex. Pointed out by riastradh@.
1.10	05-Mar-2020	riastradh	Revert "Include opt_diagnostic.h for DIAGNOSTIC." This did not do what I thought it did. opt_diagnostic.h is only for the unused _DIAGNOSTIC, which seems like an abortive attempt to incrementally convert DIAGNOSTIC to an opt_*.h option rather than a command-line option.
1.9	05-Mar-2020	riastradh	Include opt_diagnostic.h for DIAGNOSTIC. ...at least, in header files, which may not have already included libkern.h.
1.8	23-Feb-2020	isaki	Prevent a race between audiodetach and fileops methods using psref(9). Fix PR kern/54427. Thank you so much riastradh@
1.7	11-Jan-2020	isaki	Simplify async_mixer handling. - It makes FIOASYNC code in mixer_ioctl() symmetric. - For readability, mixer_async_{add,remove}() should take pid argument though pid is always curproc.
1.6	11-Jan-2020	isaki	Remove old debug #ifdefs.
1.5	29-Aug-2019	isaki	branches: 1.5.2; Fix lock assertion on async I/O mode. psignal() must be called without any spin locks. Thanks maxv@!
1.4	26-Jun-2019	isaki	branches: 1.4.2; Improve audiobell (and interfaces with audio). - Generate pseudo sine wave if possible. It may improve timbre. If it cannot represent a sine wave, it falls back to a triangular wave or a rectangular wave. - Volume adjustment. - Calculate playback frequency based on mixer frequency. Now audiobellopen() initializes playback parameters other than sample_rate, and new audiobellsetrate() sets sample_rate.
1.3	10-Jun-2019	isaki	branches: 1.3.2; Call get_props() once at attach.
1.2	08-May-2019	isaki	Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	21-Apr-2019	isaki	branches: 1.1.2; file audiovar.h was initially added on branch isaki-audio2.
1.1.2.3	05-May-2019	isaki	Revive multiuser control.
1.1.2.2	04-May-2019	isaki	Move dev/audio_if.h -> dev/audio/audio_if.h
1.1.2.1	21-Apr-2019	isaki	Reimplement audio subsystem. http://mail-index.netbsd.org/tech-kern/2019/04/01/msg024944.html At first step, audio and devices tightly coupled to audio. audio.c -> dev/audio.c: completely rewritten. mulaw.c -> audio/mulaw.c, audio/alaw.c: improve quality. audiovar.h, mulaw.h: should be removed. audio/linear.c: efficient new linear-linear converter. auconv.[ch]: should be removed but need some functions for now. aurateconv, auvolconv: removed (new audio.c handles it). audiobell.c: efficient and small new bell driver. audiobelldata.h: removed 4KB sine wave data. pad/pad.c: catch up audio, but not cloneable for now.
1.3.2.4	13-Apr-2020	martin	Mostly merge changes from HEAD upto 20200411
1.3.2.3	08-Apr-2020	martin	Merge changes from current as of 20200406
1.3.2.2	10-Jun-2019	christos	Sync with HEAD
1.3.2.1	10-Jun-2019	christos	file audiovar.h was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.4.2.4	07-Jun-2020	martin	Pull up following revision(s) (requested by isaki in ticket #950): sys/dev/audio/audio.c: revision 1.71 sys/dev/audio/audio.c: revision 1.73 sys/dev/audio/audio.c: revision 1.74 sys/dev/audio/audio.c: revision 1.75 sys/dev/audio/audiovar.h: revision 1.12 audio: Fix logic for resuming when the device is in use. audio_[r/p]mixer_start should never be called when the device is marked busy. Resolves a panic on resume when audio is playing, PR kern/55301 audio: remove comment that is no longer valid audio: Only restart recording mixer on resume if it's already been started Fix suspend/resume. - Revert temporary usage of sc_[pr]busy during suspend. These indicate whether the mixer needs to be restarted or not. - Avoid timeout error when about to suspend.
1.4.2.3	30-Apr-2020	martin	Pull up following revision(s) (requested by isaki in ticket #877): sys/dev/audio/audio.c: revision 1.55 sys/dev/audio/audio.c: revision 1.41 sys/dev/audio/audio.c: revision 1.48 sys/dev/audio/audiovar.h: revision 1.7 sys/dev/audio/audio.c: revision 1.63 (via patch) sys/dev/audio/audiovar.h: revision 1.11 sys/dev/audio/audio.c: revision 1.64 Simplify async_mixer handling. - It makes FIOASYNC code in mixer_ioctl() symmetric. - For readability, mixer_async_{add,remove}() should take pid argument though pid is always curproc. hw_if->query_format is already mandatory method. Drop null checks. Improve error handling around audio_hw_probe(). It was difficult to return multiple errors. Split sc_lock and sc_exlock. Most (probably all) malloc/free (or routines which may sleep) now can be called without holding mutex. Pointed out by riastradh@. Fix/Update comments about allocm/freem.
1.4.2.2	21-Mar-2020	martin	Pull up following revision(s) (requested by isaki in ticket #794): sys/dev/audio/audiodef.h: revision 1.10 sys/dev/audio/audio.c: revision 1.56 (via patch) sys/dev/audio/audio.c: revision 1.57 sys/dev/audio/audiovar.h: revision 1.8 sys/dev/audio/audio.c: revision 1.38 Remove obsoleted comment. Prevent a race between audiodetach and fileops methods using psref(9). Fix PR kern/54427. Thank you so much riastradh@ Release memories on audiobellclose. It's rest of the last commit.
1.4.2.1	06-Oct-2019	martin	Pull up following revision(s) (requested by isaki in ticket #285): sys/dev/audio/audiovar.h: revision 1.5 sys/dev/audio/audio.c: revision 1.30 Fix lock assertion on async I/O mode. psignal() must be called without any spin locks. Thanks maxv@!
1.5.2.2	29-Feb-2020	ad	Sync with head.
1.5.2.1	17-Jan-2020	ad	Sync with head.
1.5	20-Apr-2024	isaki	Fix typo in comment.
1.4	21-Jul-2021	skrll	need <sys/param.h> for COHERENCY_UNIT Minor KNF along the way.
1.3	11-Jan-2020	isaki	branches: 1.3.10; Remove old debug #ifdefs.
1.2	08-May-2019	isaki	branches: 1.2.2; 1.2.6; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	21-Apr-2019	isaki	branches: 1.1.2; file linear.c was initially added on branch isaki-audio2.
1.1.2.1	21-Apr-2019	isaki	Reimplement audio subsystem. http://mail-index.netbsd.org/tech-kern/2019/04/01/msg024944.html At first step, audio and devices tightly coupled to audio. audio.c -> dev/audio.c: completely rewritten. mulaw.c -> audio/mulaw.c, audio/alaw.c: improve quality. audiovar.h, mulaw.h: should be removed. audio/linear.c: efficient new linear-linear converter. auconv.[ch]: should be removed but need some functions for now. aurateconv, auvolconv: removed (new audio.c handles it). audiobell.c: efficient and small new bell driver. audiobelldata.h: removed 4KB sine wave data. pad/pad.c: catch up audio, but not cloneable for now.
1.2.6.1	17-Jan-2020	ad	Sync with head.
1.2.2.3	08-Apr-2020	martin	Merge changes from current as of 20200406
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file linear.c was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.3.10.1	01-Aug-2021	thorpej	Sync with HEAD.
1.2	08-May-2019	isaki	branches: 1.2.2; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	21-Apr-2019	isaki	branches: 1.1.2; file linear.h was initially added on branch isaki-audio2.
1.1.2.2	04-May-2019	isaki	Move dev/audio_if.h -> dev/audio/audio_if.h
1.1.2.1	21-Apr-2019	isaki	Reimplement audio subsystem. http://mail-index.netbsd.org/tech-kern/2019/04/01/msg024944.html At first step, audio and devices tightly coupled to audio. audio.c -> dev/audio.c: completely rewritten. mulaw.c -> audio/mulaw.c, audio/alaw.c: improve quality. audiovar.h, mulaw.h: should be removed. audio/linear.c: efficient new linear-linear converter. auconv.[ch]: should be removed but need some functions for now. aurateconv, auvolconv: removed (new audio.c handles it). audiobell.c: efficient and small new bell driver. audiobelldata.h: removed 4KB sine wave data. pad/pad.c: catch up audio, but not cloneable for now.
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file linear.h was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.6	02-Feb-2024	andvar	fix various typos in comments.
1.5	21-Jul-2021	skrll	need <sys/param.h> for COHERENCY_UNIT Minor KNF along the way.
1.4	12-Sep-2020	isaki	branches: 1.4.6; Improve slinear16-to-mulaw conversion calculation. It's about 2~3 times faster on my amd64 and x68k(68030).
1.3	11-Jan-2020	isaki	Remove old debug #ifdefs.
1.2	08-May-2019	isaki	branches: 1.2.2; 1.2.6; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	21-Apr-2019	isaki	branches: 1.1.2; file mulaw.c was initially added on branch isaki-audio2.
1.1.2.1	21-Apr-2019	isaki	Reimplement audio subsystem. http://mail-index.netbsd.org/tech-kern/2019/04/01/msg024944.html At first step, audio and devices tightly coupled to audio. audio.c -> dev/audio.c: completely rewritten. mulaw.c -> audio/mulaw.c, audio/alaw.c: improve quality. audiovar.h, mulaw.h: should be removed. audio/linear.c: efficient new linear-linear converter. auconv.[ch]: should be removed but need some functions for now. aurateconv, auvolconv: removed (new audio.c handles it). audiobell.c: efficient and small new bell driver. audiobelldata.h: removed 4KB sine wave data. pad/pad.c: catch up audio, but not cloneable for now.
1.2.6.1	17-Jan-2020	ad	Sync with head.
1.2.2.3	08-Apr-2020	martin	Merge changes from current as of 20200406
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file mulaw.c was added on branch phil-wifi on 2019-06-10 22:07:06 +0000
1.4.6.1	01-Aug-2021	thorpej	Sync with HEAD.
1.2	08-May-2019	isaki	branches: 1.2.2; Merge isaki-audio2 branch, the overhaul of audio subsystem. - Interrupt-oriented system rather than thread-oriented. - Improve stability, quality and performance. - Split playback and record cleanly. Improve halfduplex support. - Many bugs are fixed including deadlocks, resource leaks, abuses, etc. - Simplify audio filter mechanism. The encoding/channels/frequency conversions are completely handled in the upper layer. So the hard- ware driver only converts its hardware encoding (if necessary). - audio_hw_if changes: - Obsoletes query_encoding and add query_format instead. - Obsoletes set_params and add set_format instead. - Remove drain, setfd, mappage. - The call sequences are changed. - ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted. - ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced. - cleanup config attributes: au*conv and mulaw. - All hardware drivers should follow it (I've done as much as possible). Some file paths are changed: - dev/audio.c -> dev/audio/audio.c (rewritten) - dev/audiovar.h -> dev/audio/audiovar.h - dev/audio_dai.h -> dev/audio/audio_dai.h - dev/audio_if.h -> dev/audio/audio_if.h - dev/audiobell.c -> dev/audio/audiobell.c - dev/audiobellvar.h -> dev/audio/audiobellvar.h - dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
1.1	21-Apr-2019	isaki	branches: 1.1.2; file mulaw.h was initially added on branch isaki-audio2.
1.1.2.2	04-May-2019	isaki	Move dev/audio_if.h -> dev/audio/audio_if.h
1.1.2.1	21-Apr-2019	isaki	Reimplement audio subsystem. http://mail-index.netbsd.org/tech-kern/2019/04/01/msg024944.html At first step, audio and devices tightly coupled to audio. audio.c -> dev/audio.c: completely rewritten. mulaw.c -> audio/mulaw.c, audio/alaw.c: improve quality. audiovar.h, mulaw.h: should be removed. audio/linear.c: efficient new linear-linear converter. auconv.[ch]: should be removed but need some functions for now. aurateconv, auvolconv: removed (new audio.c handles it). audiobell.c: efficient and small new bell driver. audiobelldata.h: removed 4KB sine wave data. pad/pad.c: catch up audio, but not cloneable for now.
1.2.2.2	10-Jun-2019	christos	Sync with HEAD
1.2.2.1	08-May-2019	christos	file mulaw.h was added on branch phil-wifi on 2019-06-10 22:07:06 +0000

OpenGrok