alsaloop: pcmjob.c: use portable way to initialize recursive mutex

PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP is not in POSIX, as _NP
(non-portable) suggests.

exposing such a symbol in musl libc would lock in the ABI for all
times and makes it impossible to do future changes to the under-
lying struct without hideous symbol versioning hacks.

use the portable way instead: pthread_once was designed for such
cases.

Signed-off-by: John Spencer <maillist-alsa@barfooze.de>
Tested-by: John Spencer <maillist-alsa@barfooze.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
speaker-test: Fix chmapped channel selection without specified chmap

The channel selection currently does not work properly when there is a
driver-provided non-ALSA-traditional channel map but no manual channel
map was explicitely requested with "-m".

For example, the CEA/HDMI 8ch map is FL,FR,RLC,RRC,FC,LFE,RL,RR. Note
that it is otherwise the same as the traditional ALSA channel map,
except that the traditional rear speakers are considered
rear-center speakers and the traditional side speakers are considered
rear speakers.

Speaker-test tries to play back channels in this following order:
  0, /* Front Left  */
  4, /* Center      */
  1, /* Front Right */
  7, /* Side Right  */
  3, /* Rear Right  */
  2, /* Rear Left   */
  6, /* Side Left   */
  5, /* LFE         */

When it is the time to play back Side Left/Right, speaker-test tries to
look for SL/SR in the chmap, but doesn't find it, so it just plays back
channels 6/7 (which indeed are the side speakers, or RL/RR in this
channel map - so the correct channels are selected).

When it becomes the time to playback Rear Left/Right, speaker-test again
tries to find RL/RR in the chmap, and this time it does find them in the
chmap positions 6/7.

So the channels 6/7 are tested twice and 2/3 are never tested.

To fix this, define a generic playback order channel_order[] to be used
when the channel map is present (but not user-defined) and generate a
(speaker/playback number => channel number) mapping with the channels
ordered in the following order:
1. regular channels found in channel_order[] in the defined order,
2. channels not found in channel_order[] ordered by channel number.
3. UNKNOWN channels ordered by channel number.
4. NA channels ordered by channel number.
For channels outside the channel map just use their channel numbers (so
they will be last after all of the above).

For example, if the playback device has a fictional default channel map
of FR,FL,UNKNOWN1,FOO,BAR,RR,RL,UNKNOWN2, the playback order will be
FL,FR,RR,RL,FOO,BAR,UNKNOWN1,UNKNOWN2(,any_extra_channels).

When the channel mapping is specified manually, the specified order is
used for playback as before.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
speaker-test: Always show chmap channel names if available

Currently speaker-test only uses channel names retrieved by
snd_pcm_chmap_long_name() when a channel map has been manually set.

However, the device may provide a default (or fixed) channel map that
differs from the traditional ALSA map, in which case wrong channel names
are shown.

Fix that by always using the name from the channel map when a channel
map is present.

Note that the names retrieved by snd_pcm_chmap_long_name() are not
currently localized via gettext.

Also note that Linux kernel HDMI driver reported wrong default channel
maps before 56cac413dd6d43af8355f5d1f90a199b540f73fc ("ALSA: hda - hdmi:
Fix reported channel map on common default layouts").

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
speaker-test: Show out-of-chmap channels as Unknown

Currently speaker-test falls back to ALSA default channel names for
channels out-of-chmap.

This causes e.g. the 4th channel of
$ speaker-test -c4 -Dhdmi -m "FR,FL,FC"
to be shown as "Rear Right".

Change the code to show such channels as Unknown instead, similar to
when snd_pcm_chmap_long_name() does not know the name.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
alsaconf: support newer m-i-t and kmod

The m-i-t package made it up to 3.10 versions before ending, so update
the glob to handle those too.

Most distros are moving on to kmod, so we also want to handle the version
string that package outputs.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
alsaconf: update gentoo to use modprobe.d method as everyone else

We migrated off modules.d a long time ago.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
configure: detect udevdir via pkg-config, fallback to /lib/udev/rules.d

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
alsactl: Add monitor command

With monitor command, you can monitor the events received from the
given control device.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
alsactl: Fix REMOVE event handling in monitor command

SND_CTL_EVENT_MASK_REMOVE has to be checked at first and ignore the
rest if it matches.  Suggested by Clemens.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
alsactl: monitor all cards as default

Signed-off-by: Takashi Iwai <tiwai@suse.de>