Correct the lack of markers and missing comments for some unions.
Fixes: 040356ecf0 ("ump: Add helpers to parse / set UMP packet data")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The usage of \section and \subsection were wrong in the previous
commit, where the tags were missing.
Fixes: 3390f31664 ("seq: Add description about MIDI 2.0 and UMP handling")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fix a typo that caused a doxygen error.
Fixes: 6767f623ca ("ump: Add missing *_set variants for snd_ump_endpoint_info and snd_ump_block_info")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Provide an example program to demonstrate how to create a UMP Endpoint
and Blocks, i.e. a virtual UMP device.
It's a simple filtering application that just haves the incoming note
on/off velocity and sends out to the output. The UMP Endpoint and
Block attributes can be adjusted via command-line options.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
For making it easer for applications to create a virtual UMP Endpoint
and UMP blocks, add two API helper functions.
snd_seq_create_ump_endpoint() creates (unsurprisingly) a UMP Endpoint,
based on the given snd_ump_endpoint_info_t information. The number of
(max) UMP groups belonging to this Endpoint has to be specified.
This function sets up the Endpoint info on the sequencer client, and
creates a MIDI 2.0 UMP port as well as UMP Group ports automatically.
The name of the sequencer client is updated from the Endpoint name,
too.
After creating a UMP Endpoint, create each UMP Block via
snd_seq_create_ump_block() function with a snd_ump_block_info_t info.
The associated groups for each block have to be specified there.
The port names and capability bits are updated accordingly after
setting each block information.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The API functions to fill the data on snd_ump_endpoint_info and
snd_ump_block_info were missing. Let's add them.
They can be used to construct a virtual UMP endpoint and block.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Improve the shutdown order for the asynchronous users. There may be
unhandled signals, because the signal is reset before signal deactivation
using fnctl (O_ASYNC).
Closes: https://github.com/alsa-project/alsa-lib/issues/394
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Use the appropriate variable for access/eaccess call.
Fixes: https://github.com/alsa-project/alsa-lib/issues/395
Fixes: ef6463a2 ("ucm: fix Path condition - substitute Path and Mode fields")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The hdmi.conf contains the high level macro to be used by cards to create
the hdmi: device.
Instead of including it in different config files, include it in the main
aliases.conf and remove it's inclusion by other config files.
This change is needed to add support for the hdmi: device mapping via UCM.
Closes: https://github.com/alsa-project/alsa-lib/pull/393
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This device is just an external USB soundcard with a female 3.5mm jack
for a headset, no S/PDIF | IEC958 connector. Add it to the blacklist to
prevent it being opened.
Link: https://lore.kernel.org/alsa-devel/ZeWGbxZIc7AF96h0@m.b4.vu/
Signed-off-by: David Senoner <seda18@rolmail.net>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Try to explain more the output value and its relation between
format and sample bits defined by the format.
Link: https://github.com/larsimmisch/pyalsaaudio/pull/146
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The word "nominal" is not so correct here. Use similar
wording as we use in the kernel space (the bit-width of the format).
Link: https://github.com/larsimmisch/pyalsaaudio/pull/146
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
As Pavel noted, a possibility to automatically convert standard
linear samples to iec958 subframe format would be handy for latest
Raspberry HDMI driver.
Link: https://lore.kernel.org/alsa-devel/81b0be0a-5ab7-db91-21cb-0c59a55291e9@ivitera.com/
Suggested-by: Pavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
contrary to libasound, version script for libatopology is a regular
source file. while it's often the case that $(builddir) and $(srcdir)
point to the same directory, they don't always have to. therefore path
needs to point explicitly to $(srcdir) for Versions script in topology
Closes: https://github.com/alsa-project/alsa-lib/pull/383
Fixes: GH-382
Fixes: dc7da761f3 ("topology: separate Versions linker script")
Signed-off-by: Jan Palus <jpalus@fastmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
I'm not sure this is the best way to describe the interaction, but I think
this needs to be mentioned in some form at least.
Closes: https://github.com/alsa-project/alsa-lib/pull/381
Signed-off-by: Zeno Endemann <zeno.endemann@mailbox.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The exported symbols were tagged with ALSA_0.9 version previously.
We cannot use a different version (regressions).
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
`class` is a c++ keyword, let's try not to use them in public headers
Closes: https://github.com/alsa-project/alsa-lib/pull/286
Signed-off-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This fixes functionality on specific setups with UBSan.
Closes: https://github.com/alsa-project/alsa-lib/pull/351
Signed-off-by: q66 <q66@chimera-linux.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This 7.1 analog sound card identifies as the following:
0d8c:0102 C-Media Electronics, Inc. CM106 Like Sound Device (lsusb)
1 [ICUSBAUDIO7D ]: USB-Audio - ICUSBAUDIO7D (/proc/asound/cards)
It has the following four-channel analog stream layout:
Interface 1
Altset 3
Format: S16_LE
Channels: 4
Endpoint: 6 OUT (ADAPTIVE)
Rates: 44100, 48000
Bits: 16
Channel map: FL FR FC LFE
(/proc/asound/card1/stream0)
This layout makes it impossible to play audio to the surround (SL/SR)
speakers plugged into the "Surround" jack in 4 channel mode. Instead,
set six_channel so that the six-channel layout will be used to access
those speakers:
Interface 1
Altset 4
Format: S16_LE
Channels: 6
Endpoint: 6 OUT (ADAPTIVE)
Rates: 44100, 48000
Bits: 16
Channel map: FL FR FC LFE SL SR
Tested with speaker-test -Dsurround40:CARD=ICUSBAUDIO7D,DEV=0 -c4
The speaker system that required surround40 in order to downmix LFE into
the front/rear mix is a Klipsch ProMedia v.2-400, which has 4 speakers
and a subwoofer with an internal crossover, connected via front and rear
stereo analog cables.
Closes: https://github.com/alsa-project/alsa-lib/pull/319
Signed-off-by: Ryan Underwood <nemesis@icequake.net>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Configure script allows for the disabling of the pcm module. When
disabled, the pcm symbols will not be available. Add guards to remove
symbols from version map when not present.
Closes: https://github.com/alsa-project/alsa-lib/pull/376
Signed-off-by: Nicholas Vinson <nvinson234@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Modern autoconf practice says AC_OUTPUT() should be called with no
arguments and generated configuration files should be specified by
calling AC_CONFIG_FILES() before AC_OUTPUT().
Update configure.ac to follow this practice.
Closes: https://github.com/alsa-project/alsa-lib/pull/376
Signed-off-by: Nicholas Vinson <nvinson234@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
A slightly different solution is preferred than PR recommends (bellow).
Only symbols with snd_ prefix should be public. Create a minimal Versions
file for libatopology.
Link: https://github.com/alsa-project/alsa-lib/pull/376
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Like snd_seq_ev_clear(), let's add a helper to clear the event record
for a UMP-capable sequencer event.
While we're at it, change snd_seq_ev_clear() to be a static inline
function, so that we make sure that the proper pointer type is
passed.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In some places samples and frames are used interchangeably, which may
be a little confusing, so update it to say 'frames' where it could matter.
Closes: https://github.com/alsa-project/alsa-lib/pull/375
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The start_treshold is defined as unsigned, so fix the condition
to allow using values avobe LONG_MAX.
Also, fix the documentation for the 64-bit platforms (INTMAX -> LONG_MAX).
Fixes: https://github.com/alsa-project/alsa-lib/issues/374
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
As noted in the github issue, the poll descriptors may change depending
on the stream parameters.
Fixes: cd04da2b ("pcm: clarify documentation of poll descriptor usage")
Fixes: https://github.com/alsa-project/alsa-lib/issues/372
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
