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Added SNDRV_PCM_STATE_DISCONNECTED state.

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Changed direct plugins to handle DISCONNECT/SUSPEND states from slave.
This commit is contained in:
Jaroslav Kysela 2004-01-19 19:48:27 +00:00
parent bc2f075269
commit 9105bb7fcd
5 changed files with 89 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

4
include/pcm.h
View file

@ -254,7 +254,9 @@ typedef enum _snd_pcm_state {
SND_PCM_STATE_PAUSED,
/** Hardware is suspended */
SND_PCM_STATE_SUSPENDED,
SND_PCM_STATE_LAST = SND_PCM_STATE_SUSPENDED
/** Hardware is disconnected */
SND_PCM_STATE_DISCONNECTED,
SND_PCM_STATE_LAST = SND_PCM_STATE_DISCONNECTED
} snd_pcm_state_t;
/** PCM start mode */

10
src/pcm/pcm.c
View file

@ -199,6 +199,9 @@ In other case, the calls #snd_pcm_prepare(),
#snd_pcm_drop(), #snd_pcm_drain() can be used
to leave this state.
\par SND_PCM_STATE_DISCONNECTED
The device is physicaly disconnected. It does not accept any I/O calls in this state.
\section pcm_formats PCM formats
The full list of formats present the #snd_pcm_format_t type.
@ -1276,6 +1279,7 @@ static const char *snd_pcm_state_names[] = {
STATE(DRAINING),
STATE(PAUSED),
STATE(SUSPENDED),
STATE(DISCONNECTED),
};
static const char *snd_pcm_access_names[] = {
@ -2050,6 +2054,8 @@ int snd_pcm_wait(snd_pcm_t *pcm, int timeout)
return -EPIPE;
case SND_PCM_STATE_SUSPENDED:
return -ESTRPIPE;
case SND_PCM_STATE_DISCONNECTED:
return -ENOTTY; /* linux VFS does this? */
default:
return -EIO;
}
@ -5932,6 +5938,8 @@ snd_pcm_sframes_t snd_pcm_read_areas(snd_pcm_t *pcm, const snd_pcm_channel_area_
return -EPIPE;
case SND_PCM_STATE_SUSPENDED:
return -ESTRPIPE;
case SND_PCM_STATE_DISCONNECTED:
return -ENOTTY;
default:
return -EBADFD;
}
@ -6003,6 +6011,8 @@ snd_pcm_sframes_t snd_pcm_write_areas(snd_pcm_t *pcm, const snd_pcm_channel_area
return -EPIPE;
case SND_PCM_STATE_SUSPENDED:
return -ESTRPIPE;
case SND_PCM_STATE_DISCONNECTED:
return -ENOTTY;
default:
return -EBADFD;
}

28
src/pcm/pcm_dmix.c
View file

@ -385,6 +385,15 @@ static int snd_pcm_dmix_sync_ptr(snd_pcm_t *pcm)
snd_pcm_uframes_t slave_hw_ptr, old_slave_hw_ptr, avail;
snd_pcm_sframes_t diff;
switch (snd_pcm_state(dmix->spcm)) {
case SND_PCM_STATE_SUSPENDED:
return -ESTRPIPE;
case SND_PCM_STATE_DISCONNECTED:
dmix->state = -ENOTTY;
return -ENOTTY;
default:
break;
}
old_slave_hw_ptr = dmix->slave_hw_ptr;
slave_hw_ptr = dmix->slave_hw_ptr = *dmix->spcm->hw.ptr;
diff = slave_hw_ptr - old_slave_hw_ptr;
@ -420,6 +429,7 @@ static int snd_pcm_dmix_sync_ptr(snd_pcm_t *pcm)
static int snd_pcm_dmix_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
{
snd_pcm_direct_t *dmix = pcm->private_data;
snd_pcm_state_t state;
switch (dmix->state) {
case SNDRV_PCM_STATE_DRAINING:
@ -430,7 +440,8 @@ static int snd_pcm_dmix_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
break;
}
memset(status, 0, sizeof(*status));
status->state = dmix->state;
state = snd_pcm_state(dmix->spcm);
status->state = state == SNDRV_PCM_STATE_RUNNING ? dmix->state : state;
status->trigger_tstamp = dmix->trigger_tstamp;
status->tstamp = snd_pcm_hw_fast_tstamp(dmix->spcm);
status->avail = snd_pcm_mmap_playback_avail(pcm);
@ -442,6 +453,15 @@ static int snd_pcm_dmix_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
static snd_pcm_state_t snd_pcm_dmix_state(snd_pcm_t *pcm)
{
snd_pcm_direct_t *dmix = pcm->private_data;
switch (snd_pcm_state(dmix->spcm)) {
case SND_PCM_STATE_SUSPENDED:
return -ESTRPIPE;
case SND_PCM_STATE_DISCONNECTED:
dmix->state = -ENOTTY;
return -ENOTTY;
default:
break;
}
return dmix->state;
}
@ -462,6 +482,8 @@ static int snd_pcm_dmix_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp)
return 0;
case SNDRV_PCM_STATE_XRUN:
return -EPIPE;
case SNDRV_PCM_STATE_DISCONNECTED:
return -ENOTTY;
default:
return -EBADFD;
}
@ -480,6 +502,8 @@ static int snd_pcm_dmix_hwsync(snd_pcm_t *pcm)
return 0;
case SNDRV_PCM_STATE_XRUN:
return -EPIPE;
case SNDRV_PCM_STATE_DISCONNECTED:
return -ENOTTY;
default:
return -EBADFD;
}
@ -891,7 +915,7 @@ int snd_pcm_dmix_open(snd_pcm_t **pcmp, const char *name,
if (dmix->channels == UINT_MAX)
dmix->channels = dmix->shmptr->s.channels;
snd_pcm_direct_semaphore_up(dmix, DIRECT_IPC_SEM_CLIENT);
*pcmp = pcm;

26
src/pcm/pcm_dshare.c
View file

@ -132,6 +132,15 @@ static int snd_pcm_dshare_sync_ptr(snd_pcm_t *pcm)
snd_pcm_uframes_t slave_hw_ptr, old_slave_hw_ptr, avail;
snd_pcm_sframes_t diff;
switch (snd_pcm_state(dshare->spcm)) {
case SND_PCM_STATE_SUSPENDED:
return -ESTRPIPE;
case SND_PCM_STATE_DISCONNECTED:
dshare->state = SNDRV_PCM_STATE_DISCONNECTED;
return -ENOTTY;
default:
break;
}
old_slave_hw_ptr = dshare->slave_hw_ptr;
slave_hw_ptr = dshare->slave_hw_ptr = *dshare->spcm->hw.ptr;
diff = slave_hw_ptr - old_slave_hw_ptr;
@ -167,6 +176,7 @@ static int snd_pcm_dshare_sync_ptr(snd_pcm_t *pcm)
static int snd_pcm_dshare_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
{
snd_pcm_direct_t *dshare = pcm->private_data;
snd_pcm_state_t state;
switch (dshare->state) {
case SNDRV_PCM_STATE_DRAINING:
@ -177,7 +187,8 @@ static int snd_pcm_dshare_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
break;
}
memset(status, 0, sizeof(*status));
status->state = dshare->state;
state = snd_pcm_state(dshare->spcm);
status->state = state == SND_PCM_STATE_RUNNING ? dshare->state : state;
status->trigger_tstamp = dshare->trigger_tstamp;
status->tstamp = snd_pcm_hw_fast_tstamp(dshare->spcm);
status->avail = snd_pcm_mmap_playback_avail(pcm);
@ -189,6 +200,15 @@ static int snd_pcm_dshare_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
static snd_pcm_state_t snd_pcm_dshare_state(snd_pcm_t *pcm)
{
snd_pcm_direct_t *dshare = pcm->private_data;
switch (snd_pcm_state(dshare->spcm)) {
case SND_PCM_STATE_SUSPENDED:
return -ESTRPIPE;
case SND_PCM_STATE_DISCONNECTED:
dshare->state = SNDRV_PCM_STATE_DISCONNECTED;
return -ENOTTY;
default:
break;
}
return dshare->state;
}
@ -209,6 +229,8 @@ static int snd_pcm_dshare_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp)
return 0;
case SNDRV_PCM_STATE_XRUN:
return -EPIPE;
case SNDRV_PCM_STATE_DISCONNECTED:
return -ENOTTY;
default:
return -EBADFD;
}
@ -227,6 +249,8 @@ static int snd_pcm_dshare_hwsync(snd_pcm_t *pcm)
return 0;
case SNDRV_PCM_STATE_XRUN:
return -EPIPE;
case SNDRV_PCM_STATE_DISCONNECTED:
return -ENOTTY;
default:
return -EBADFD;
}

26
src/pcm/pcm_dsnoop.c
View file

@ -114,6 +114,15 @@ static snd_pcm_sframes_t snd_pcm_dsnoop_sync_ptr(snd_pcm_t *pcm)
snd_pcm_uframes_t slave_hw_ptr, old_slave_hw_ptr, avail;
snd_pcm_sframes_t diff;
switch (snd_pcm_state(dsnoop->spcm)) {
case SND_PCM_STATE_SUSPENDED:
return -ESTRPIPE;
case SND_PCM_STATE_DISCONNECTED:
dsnoop->state = SNDRV_PCM_STATE_DISCONNECTED;
return -ENOTTY;
default:
break;
}
old_slave_hw_ptr = dsnoop->slave_hw_ptr;
slave_hw_ptr = dsnoop->slave_hw_ptr = *dsnoop->spcm->hw.ptr;
diff = slave_hw_ptr - old_slave_hw_ptr;
@ -150,6 +159,7 @@ static snd_pcm_sframes_t snd_pcm_dsnoop_sync_ptr(snd_pcm_t *pcm)
static int snd_pcm_dsnoop_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
{
snd_pcm_direct_t *dsnoop = pcm->private_data;
snd_pcm_state_t state;
switch(dsnoop->state) {
case SNDRV_PCM_STATE_DRAINING:
@ -160,7 +170,8 @@ static int snd_pcm_dsnoop_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
break;
}
memset(status, 0, sizeof(*status));
status->state = dsnoop->state;
state = snd_pcm_state(dsnoop->spcm);
status->state = state == SND_PCM_STATE_RUNNING ? dsnoop->state : state;
status->trigger_tstamp = dsnoop->trigger_tstamp;
status->tstamp = snd_pcm_hw_fast_tstamp(dsnoop->spcm);
status->avail = snd_pcm_mmap_capture_avail(pcm);
@ -172,6 +183,15 @@ static int snd_pcm_dsnoop_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
static snd_pcm_state_t snd_pcm_dsnoop_state(snd_pcm_t *pcm)
{
snd_pcm_direct_t *dsnoop = pcm->private_data;
switch (snd_pcm_state(dsnoop->spcm)) {
case SND_PCM_STATE_SUSPENDED:
return -ESTRPIPE;
case SND_PCM_STATE_DISCONNECTED:
dsnoop->state = SNDRV_PCM_STATE_DISCONNECTED;
return -ENOTTY;
default:
break;
}
return dsnoop->state;
}
@ -192,6 +212,8 @@ static int snd_pcm_dsnoop_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp)
return 0;
case SNDRV_PCM_STATE_XRUN:
return -EPIPE;
case SNDRV_PCM_STATE_DISCONNECTED:
return -ENOTTY;
default:
return -EBADFD;
}
@ -210,6 +232,8 @@ static int snd_pcm_dsnoop_hwsync(snd_pcm_t *pcm)
return 0;
case SNDRV_PCM_STATE_XRUN:
return -EPIPE;
case SNDRV_PCM_STATE_DISCONNECTED:
return -ENOTTY;
default:
return -EBADFD;
}