The recent updates do not take in account the possible
calls for the capture stream. Fix the avail and delay
inconsistencies (and assert).
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This reverts commit aba87e5098.
The commit does not look good. The plugins must handle
the delay value correctly.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Do hw_ptr sync only once after the status call. This avoids
double update.
Also, the application pointer must not change when
the status is called. Add assert() call for this condition.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
No functional changes - move the code to snd_pcm_plugin_sync_hw_ptr()
and put the mmap capture updates to separate function for readability.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
It's no reason to sync the avail/delay fields using the mirrored
buffer pointers. The slave information must be valid.
The original report probably tries to fix something for
the specific plugin. Revert all changes.
Fixes: afe6ff3b33 ("pcm: plugin status - fix the return value (regression)")
Fixes: 4f90392f07 ("pcm: fix the snd_pcm_plugin_status() avail and delay fields")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The snd_pcm_plugin_avail_update() error code in snd_pcm_plugin_status()
should not be reported to the caller. The state errors can be determined
using the state member in the status structure.
Fixes: 4f90392f07 ("pcm: fix the snd_pcm_plugin_status() avail and delay fields")
BugLink: https://github.com/alsa-project/alsa-lib/issues/107
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The __snd_pcm_state() must return a valid state, not an error value
when the plugin callback is not defined. Use the first state
SND_PCM_STATE_OPEN - the other functions will return the error
code depending on this state.
Link: https://lore.kernel.org/alsa-devel/20201226213547.175071-10-alexhenrie24@gmail.com/
Reported-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
It was wrongly defined with SNDRV_ prefix. Fix it.
Fixes: ea02dbd20a ("pcm: Add snd_pcm_audio_tstamp_type_t constants")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
These are mostly a copy-paste from the kernel headers. But since functions
snd_pcm_audio_tstamp_config make use of these they should be added to the
public API as well.
Reported-by: Alex Moon <alex.r.moon@gmail.com>
Signed-off-by: David Henningsson <diwic@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Set the status tstamp field so that it can be accessed with
snd_pcm_status_get_htstamp().
Signed-off-by: Jonas Holmberg <jonashg@axis.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Use codec_provider and codec_consumer for bclk and fsync
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
use fsync_provider for structure fields, 'codec_provider' and
'codec_consumer' for options and modify #defines to use CP and CC
suffixes.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
use bclk_provider for structure fields, 'codec_provider' and
'codec_consumer' for options and modify #defines to use CP and CC
suffixes.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The syscalls may return EINTR when a signal is handled.
Implement safe_write() function which does simple write
retry.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The rewind or forward may cause the stream pointer change. Although
this patch does not fix the real meter update issue, it breaks
the possible big loops when the stream pointers are desynced with
the meters. It does not make sense to copy more samples than the
pcm buffer contains.
Link: https://lore.kernel.org/alsa-devel/f56d6a67-014a-e562-c253-830c0ec03717@ivitera.com/
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The commit b2a4272ecb introduced a slightly
different behaviour for ALSA_PLUGIN_DIR. The fallback causes that the
alsa libraries are searched in all library directories.
It was never intended to do the system wide library lookups for
internal modules.
Fixes: b2a4272ecb ("snd_dlopen: do not use absolute plugin path for snd_dlopen() calls")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
In some cases, it may be useful to specify the plugin directory
using the environment variable.
BugLink: https://github.com/alsa-project/alsa-lib/issues/82
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The avail and delay fields in the returned status structure does not
reflect the actual hw_ptr/appl_ptr. This change correct this.
TODO: Unfortunately, the delay might contain also information about
extra hardware / buffering delay which is hidden with this change.
Link: https://lore.kernel.org/alsa-devel/d9c1f37e-5c8d-f289-270e-c6cda7a56ce3@axis.com/
Reported-by: Jonas Holmberg <jonashg@axis.com>
Tested-by: Jonas Holmberg <jonashg@axis.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
