Some systems, like Android/Bionic, do not support SysV at all.
Let the configure script detect if the header is available, and
if not, automatically disable the pieces that require it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This header isn't used in these files, so stop trying to include it.
This helps builds on systems that don't provide the header (such as
Android/Bionic).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If you build with --disable-pcm, the rawmidi code fails to link because
it uses the page_size helper declared in local.h, but the page_* funcs
are in the pcm mmap module. Move these funcs into conf.c so that they
are always available to the rest of the system.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Currently, dmix & co plugins ignore the XRUN state of the slave PCM.
It's (supposedly) because dmix deals with the PCM in a free-wheel
mode, which is equivalent with XRUN. But, this difference (whether
the correct freewheel or XRUN) should be done by the kernel, and we
may have an XRUN state indeed (e.g. via xrun injection).
This patch fixes this lack of behavior, to handle PCM xrun and does
prepare when the slave PCM is in such a state.
Also, the patch consolidates the prepare callback for all dmix, dsnoop
and dshare plugins, and fix/cleanup a bit for dshare/dsnoop codes to
align with dsnoop code.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Because of a typo in referencing the input array in
snd_pcm_ladspa_allocate_memory(), ladpsa PCM plugin may cause a
segfault at prepare when input and and output channels are different:
#0 0x00007ffff78623ef in snd_pcm_ladspa_allocate_memory (pcm=0x626fa0, pcm=0x626fa0, pcm=0x626fa0, ladspa=0x621ad0) at pcm_ladspa.c:753
#1 snd_pcm_ladspa_init (pcm=0x626fa0) at pcm_ladspa.c:834
#2 0x00007ffff7842946 in snd_pcm_plugin_prepare (pcm=0x626fa0) at pcm_plugin.c:171
#3 0x00007ffff784290f in snd_pcm_plugin_prepare (pcm=0x62c760) at pcm_plugin.c:162
#4 0x000000000040256a in ?? ()
#5 0x00007ffff7222ec5 in __libc_start_main (main=0x401d80,a argc=4, argv=0x7fffffffde28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffde18) at libc-start.c:287
#6 0x0000000000402fdd in ?? ()
This patch corrects the wrong reference.
Reported-and-tested-by: Andreas Hartmann <mail@andreashartmann.eu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
There are strange "!" added before snd_config_get_id() return value
checks in a couple of places in pcm_route.c. This essentially makes
the result always positive, making checks bogus.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A few error checks are wrongly performed with logical and (&&) instead
of logical or (||), which condition never met.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When method snd_pcm_set_params sets sample rate to 22050 and latency to 50000
to davinci soc driver method snd_pcm_hw_params_set_buffer_time_near fails
and variable params is already changed in the method so the next method
snd_pcm_hw_params_set_period_time_near fails also.
Signed-off-by: Martin Geier <martin.geier@streamunlimited.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
use STATUS_EXT ioctl if PCM protocol is > 2.0.12
All audio timestamp configuration will be ignored with an
older protocol.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Enable kernel-side functionality by letting user select what sort of
timestamp it desires
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
extend support to link, link_estimated and link_synchronized
timestamp. wall-clock is deprecated
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
After suspend and resume, the alsa driver is stopped. But if alsa-lib run
into snd_pcm_xxxx_drain(), it need to wait avail >= pcm->stop_threshold,
otherwise, it will not exit the loop, so finally it is blocked at poll() of
snd_pcm_wait_nocheck(pcm, -1).
This patch is to add state check after snd_pcm_wait_nocheck(pcm, -1), if
the state is SND_PCM_STATE_SUSPENDED, then return error.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fetch the timestamp and other status fields by issuing
snd_pcm_status() for the slave PCM. Also, fill the delay field
properly. This should fix longstanding PA's complaints.
Reported-by: Dan Hordern <danhordern@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
It's no fatal error from sw params, and it's really bad habit to use
assert() and abort the operation as a system library.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Using assert() for non-fatal error checks is really brain-dead.
These are especially bad, as it hits even in the normal operation with
plugins and some h/w constraints.
Reported-by: Alan Horstmann <gineera@aspect135.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Like pcm and rawmidi, each object parser needs to accept the hint
component. Now a new local function _snd_conf_generic_id() was
introduced to replace each call of "comment" and "type" field checks.
Also, the two existing identical functions for pcm and rawmidi are
removed and the new function is used commonly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
PCM and control shm plugins and aserver have some codes to resolve the
host address and check whether it's a local host although the given
address is never used. In addition, the code contains gethostbyname()
that is known to be obsoleted. So, let's get rid of all these unused
codes.
The host configuration item is still accepted (but just ignored) for
keeping the compatibility.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The size argument is wrong for one of the snprintf() calls in
snd_pcm_chmap_print(), allowing an overflow to happen (the user-provided
buffer may be written data up to 2x its actual size).
Seen in an user report here: http://trac.kodi.tv/ticket/15641
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Just a couple of quick fixes related to tstamp_type.
- snd_pcm_sw_params(): copy tstamp_type field
- snd_pcm_tstamp_type_name(): fix argument type
- snd_pcm_dump_sw_setup(): fix dumping of tstamp_type field
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch adds big-endian DSD sample format and fixes return value of DSD
formats for snd_pcm_format_little_endian().
Signed-off-by: Jussi Laako <jussi@sonarnerd.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When a slave PCM gets an error like XRUN, it stops and notifies with
SND_TIMER_EVENT_MSTOP event. But the current code filters out this
type and eventually hang due to the empty timer queue. The fix is to
just add this event type to the filter bit mask.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If it is, then it means most likely the driver problem, so we should
return error immediately instead.
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The current behavior of snd_pcm_rewindable and snd_pcm_forwardable means
that the returned value is only accurate to one period. Or maybe even
meaningless if period interrupts are off. Fetch the up-to-date position
of the hardware pointer, as that's what is wanted by callers.
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Such negative returns are possible during an underrun if xrun detection
is disabled.
So, don't store the result in an unsigned variable (where it will
overflow), and postpone the trigger in such case, too.
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Such negative values can happen when an underrun happens and xrun
detection is disabled. Another situation is if the device updated the
pointer before alsa-lib has a chance to detect the xrun.
The problem is that these negative values could propagate to the
snd_pcm_rewindable return value, where it is specified that negative
returns must be interpreted as error codes and not as negative amount of
samples.
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
There are a few places where the argument of the .rewind or .forward
callback is checked against the same value as returned by .rewindable or
.forwardable. Express this "don't rewind more than rewindable" logic
explicitly, so that the future fixes to the rewindable size can go to
one function instead of two.
While at it, take advantage of the fact that snd_pcm_mmap_avail() cannot
return negative values (except due to integer overflow, which is AFAICS
impossible given the current boundary choice).
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add the new DSD_U32_LE sample format to alsa-lib.
NB include/pcm.h and include/sound/asound.h are updated so a new sync with the
kernel headers is not needed
Signed-off-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The return value was wrong for playback if slave->hw_ptr was near the
boundary and *pcm->appl.ptr was near zero. The wrong result was greater
than the boundary.
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This function returned incorrect results when hw.ptr was near the
boundary and hw.appl_ptr was near zero. Here "incorrect" means "greater
than the boundary".
The result was incorrect, because it was used as a return value of
various *_rewindable() functions and also as the delay for ioplug.
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Functions 'snd_pcm_format_silence_64' and 'snd_pcm_format_size' also need to be
able to handle the DSD smaple format.
Changes from v1:
- Correct silence pattern for DSD
Signed-off-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Support for DSD sample formats has been added a while ago. This patch makes
those sample formats beter usable from userland (e.g. aplay).
[These implementation details have been forgotten in the previous DSD
support patch -- tiwai]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
CLOCK_MONITONIC is defined in <bits/time.h>, add <time.h> before
<sys/time.h>.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The PCM route plugin can assign the destination value from average of
multiple sources with attenuation. This requires the read of each
channel value, sums and writes the resultant value in the requested
format.
Currently, get_labels is used for reading source values while
put32_labels is used for writing the dest value. This is, however,
a buggy implementation; get_labels gives the value as is only with
endianness and signedness conversions, but put32_labels assumes that
the value is normalized to 32bit int and it shifts down to the dest
format. In addition, the current code lacks get_labels entries for
the 24bit formats, as Shengjiu Wang spotted out.
For fixing these bugs, this patch replaces the read with
get32_labels and use always 64bit int for sum. This simplifies the
code a lot and drops many lines.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fill the new proto field introduced to sw_params with the current PCM
protocol version. This makes tstamp_type evaluated properly in the
kernel.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
