The right function name is snd_seq_has_queue_tempo_base().
Fixes: 24c7f42733 ("seq: Add API functions to set different tempo base values")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Implement the API function calls corresponding to the new sequencer
port flag bit that has been added recently to the kernel.
A UMP MIDI 2.0 device allow to have an optional MIDI 1.0 port while
speaking in MIDI 2.0 protocol for other UMP Groups. The new seq port
flag indicates that.
This is rather a minor difference, and since ALSA sequencer core
covers the all conversions, usually you don't have to worry about it
at all.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
snd_seq_create_ump_block() receives a snd_ump_block_info_t data at the
creation of a FB and updates its associated sequencer port, but it
handled the port direction incorrectly. The UMP / port direction
means the connectivity, but the current code translated other way
round. The correct translation should be that input = receiver, i.e.
a writable port for applications, and output = source, a readable port
for applications.
This patch corrects the translation, and add more comments to the
direction definition.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
MIDI2 Set Tempo message uses 10ns-based values, and we need to update
the API to change the base time unit.
This patch adds a few new API functions:
- snd_seq_has_queue_tempo_base() returns 1 if the client supports a
new tempo-base value; if 0, it's an old system and application has
to use the tempo in the fixed 1us unit
- the tempo base can be changed with
snd_seq_queue_tempo_set_tempo_base(), provided in nsec unit;
the value has to be either 10 or 1000 (or 0 as default, equivalent
with 1000)
The protocol version is checked and fallback to the fixed 1us base for
the old clients.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Add a helper function to return the number of words of a given UMP
packet type. Used for parsing MIDI Clip File stream, for example.
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>
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>
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>
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>
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>
This is based on my understanding of the intended behavior, the
test/pcm.c example code, as well as the github pull request
discussion (#370).
There needs to be more clarifiaction regarding the exact semantics
of the value of the revents output parameter of
snd_pcm_poll_descriptors_revents, since there are events that do
not necessarily correspond to POLLIN or POLLOUT (such as period
events), but I believe this is a lot less obvious and needs
confirmation first.
Closes: https://github.com/alsa-project/alsa-lib/pull/370
Signed-off-by: Zeno Endemann <zeno.endemann@mailbox.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Update snd_pcm_subformat_t getters and setters so they no longer throw
warnings when building.
Closes: https://github.com/alsa-project/alsa-lib/pull/342
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Improve granularity of format selection for S32/U32 formats by adding
masks representing 20, 24 and 32 most significant bits.
Closes: https://github.com/alsa-project/alsa-lib/pull/342
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Allow userspace applications to select subformats easily just like in
snd_pcm_format_t case - by string conversion.
Closes: https://github.com/alsa-project/alsa-lib/pull/342
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
