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pcm: direct: Fix for sync issue on xrun recover

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If using very short periods, DSHARE/DSNOOP/DMIX may report underruns while in
status 'prepared'. This prohibits correct recovery. Now slave xrun conditions
for DSHARE/DSNOOP/DMIX are being handled properly.

Signed-off-by: Andreas Pape <apape@de.adit-jv.com>
Signed-off-by: Joshua Frkuska <joshua_frkuska@mentor.com>
Signed-off-by: Mounesh Sutar <mounesh_sutar@mentor.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Andreas Pape 2017-01-10 12:03:36 +05:30 • committed by Takashi Iwai
parent 3f0dc404f1
commit 1a9bd0f044
5 changed files with 162 additions and 16 deletions
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5
src/pcm/pcm_direct.h
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@ -66,6 +66,7 @@ typedef struct {
char socket_name[256]; /* name of communication socket */
snd_pcm_type_t type; /* PCM type (currently only hw) */
int use_server;
unsigned int recoveries; /* no of executed recoveries on slave*/
struct {
unsigned int format;
snd_interval_t rate;
@ -157,6 +158,7 @@ struct snd_pcm_direct {
int var_periodsize; /* allow variable period size if max_periods is != -1*/
unsigned int channels; /* client's channels */
unsigned int *bindings;
unsigned int recoveries; /* mirror of executed recoveries on slave */
union {
struct {
int shmid_sum; /* IPC global sum ring buffer memory identification */
@ -324,7 +326,8 @@ int snd_pcm_direct_open_secondary_client(snd_pcm_t **spcmp, snd_pcm_direct_t *dm
snd_pcm_chmap_query_t **snd_pcm_direct_query_chmaps(snd_pcm_t *pcm);
snd_pcm_chmap_t *snd_pcm_direct_get_chmap(snd_pcm_t *pcm);
int snd_pcm_direct_set_chmap(snd_pcm_t *pcm, const snd_pcm_chmap_t *map);
int snd_pcm_direct_slave_recover(snd_pcm_direct_t *direct);
int snd_pcm_direct_client_chk_xrun(snd_pcm_direct_t *direct, snd_pcm_t *pcm);
int snd_timer_async(snd_timer_t *timer, int sig, pid_t pid);
struct timespec snd_pcm_hw_fast_tstamp(snd_pcm_t *pcm);