PulseAudio ALSA modules report errors after calling
snd_pcm_avail_delay(), with a delay lower than the number of samples
available.
Correct delay using Jaroslav's recommendation:
"the result should be 'delay(slave) + mmap_capture_avail(pcm)"
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
If we try to print this then it causes a read past the end of the array
in snd_pcm_type_name().
From: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
plug->client_frames and plug->slave_frames are not used by
any plugin, remove dead code.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
For capture stream, the delay must be obtained as last, but we need to
update the ring buffer pointers for the avail_update call. So, rearrange
the code a bit and add hwsync call as first.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add API to disable period wakeups.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Fix required before interrupt disabling routines patch can be applied.
Without this fix, the interrupts are only disabled when directly
accessing hw devices.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
The sequences are not parsed correctly. First cfg value is the command
and second value is the command argument.
Also, fix strcmp calls in ucm/main.c (reported by
abraham duenas <aduejazz@gmail.com>).
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The device name of the M-Audio AudioPhile USB is actually "Audiophile USB (tm)".
Also keep the old string, just to be sure.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
libtool is only created at the end of ./configure, so it doesn't make
sense to grep it in ./configure (the check would always fail the first
time). However, ltmain.sh is copied into the ${srcdir} by libtoolize and
should be safe to check at any time that configure can be run.
Signed-off-by: Simon McVittie <smcv@debian.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
For TLV information that indicates that the minimum value is actually
muted, the returned range used the wrong minimum dB value, and
converting dB values to raw control values did not round up correctly
near the minimum.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Avoid configuration file processing races when multiple threads call
the *open() functions together (for example using alsaloop with
multiple -T jobs can reproduce this issue).
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
- new "Value {}" section is introduced for read-only values
describing the PCM and control/mixer IDs (or any other
things)
- more complete implementation for API functions
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
- separate code to more files
- use standard lists to represent structures
- use alsa-lib configuration parser
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
- merge all similar functions to one - make everything
string based
- add possibility to create virtual cards
- add comment pairs for the end user interface
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add doxygen and make support for UCM.
CC: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Justin Xu <justinx@slimlogic.co.uk>
Signed-off-by: Stefan Schmidt <stefan@slimlogic.co.uk>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This patch adds audio Use Case management support to alsa-lib.
UCM is designed to abstract the audio device hardware mixer controls into
high level abstract use cases.
The use case manager works by configuring the sound card ALSA kcontrols to
change the hardware digital and analog audio routing to match the requested
device use case. The use case manager kcontrol configurations are stored in
easy to modify text files.
UCM development has been kindly sponsored by Texas Instruments Inc,
Wolfson Microelectronics PLC and Slimlogic Ltd.
CC: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Stefan Schmidt <stefan@slimlogic.co.uk>
Signed-off-by: Justin Xu <justinx@slimlogic.co.uk>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This patch adds the API header for alsa-lib Use Case Management support.
This file defines the public interface exported by UCM to client
applications.
UCM development has been kindly sponsored by Texas Instruments Inc,
Wolfson Microelectronics PLC and Slimlogic Ltd.
CC: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Stefan Schmidt <stefan@slimlogic.co.uk>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Justin Xu <justinx@slimlogic.co.uk>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
- changed logic to get/put blocks
- added mutex locking of the symbol list
- added reference counting (do not free used dl handles)
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
As discussed with Takashi, removing the lock allows apps to mute
the output using the mixer interface.
Other AES controls remain locked.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This tries to fix the issue when logical device indexes does not match the
hardware device indexes (like hdmi -> 0:3, 1:7, 2:8, 3:9).
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
In the put conversion, the support for 3-byte formats was missing.
This resulted in inaudible volume with rate plugin & co.
Typos fixed by Mark Hills <mark@pogo.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Having getenv directly in the function is not a good idea. Allow
configuration of the behaviour change in snd_pcm_param_choose() function
using alsa.conf. Use the environment variable LIBASOUND_COMPAT only
as fallback.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Some broken applications like Audacious don't set any timing parameters.
While the alsa-lib behaviour is to select the smallest period size and
biggest buffer size, the result is the generation of thousands
interrupts per second.
The default value in alsa.conf is 5000usec.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Commit 92608badc519a8c1f65d93743396517aaa582b53 in linux kernel added
the possibility of 3 additional HDMI devices on indexes 7-9.
Present all those additional devices using the "hdmi" alias as well.
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Get_card_name() can be called more than once on the same list, so it
must free the previous list->cardname before replacing it.
Signed-off-by: John Lindgren <john.lindgren@tds.net>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cosmetic fix.
There was a tab instead of new line after snd_ctl_get_dB_range
function.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When converting from dB to raw value, and DB_RANGE is
used with non overlapping map, dB value in between the
sub ranges will be not found.
For example, if the control has the following:
0: -10dB
1: -5dB
2: 0dB
3: 2dB
4: 4dB
static const unsigned int nonoverlapping_tlv[] = {
TLV_DB_RANGE_HEAD(2),
0, 2, TLV_DB_SCALE_ITEM(-1000, 500, 0),
3, 4, TLV_DB_SCALE_ITEM(200, 200, 0),
};
Range 1: -10 .. 0dB
Range 2: 2 .. 4dB
If user asks for 1dB the snd_tlv_convert_from_dB will not find
the raw value, since the 1dB is not part of either range.
To fix this, we will store the previous non maching range's
maximum raw value. If the dB value is not found in the next range,
we will check, if the requested dB value is in between the current
and the previous range, and if it is than pick the apropriate raw
value based on the xdir (up or down rounding).
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When converting from dB value to raw value, the control's
full range was not checked in case of SND_CTL_TLVT_DB_RANGE.
Check out of range dB values, and return apropriate raw
value for the caller.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
