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Continued config implementation. Added incomplete support for pcm

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This commit is contained in:
Abramo Bagnara 2000-08-24 17:07:44 +00:00
parent c709eb8140
commit 244653df61
8 changed files with 329 additions and 19 deletions
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168
src/pcm/pcm.c
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@ -27,6 +27,7 @@
#include <sys/poll.h>
#include <sys/uio.h>
#include "pcm_local.h"
#include "list.h"
snd_pcm_type_t snd_pcm_type(snd_pcm_t *handle)
{
@ -501,3 +502,170 @@ ssize_t snd_pcm_samples_to_bytes(snd_pcm_t *handle, ssize_t samples)
return samples * handle->bits_per_sample / 8;
}
static int _snd_pcm_open_hw(snd_pcm_t **handlep, snd_config_t *conf,
int stream, int mode)
{
snd_config_iterator_t i;
long card = -1, device = -1, subdevice = -1;
char *str;
int err;
snd_config_foreach(i, conf) {
snd_config_t *n = snd_config_entry(i);
if (strcmp(n->id, "comment") == 0)
continue;
if (strcmp(n->id, "type") == 0)
continue;
if (strcmp(n->id, "stream") == 0)
continue;
if (strcmp(n->id, "card") == 0) {
err = snd_config_integer_get(n, &card);
if (err < 0) {
err = snd_config_string_get(n, &str);
if (err < 0)
return -EINVAL;
card = snd_card_name(str);
if (card < 0)
return card;
}
continue;
}
if (strcmp(n->id, "device") == 0) {
err = snd_config_integer_get(n, &device);
if (err < 0)
return err;
continue;
}
if (strcmp(n->id, "subdevice") == 0) {
err = snd_config_integer_get(n, &subdevice);
if (err < 0)
return err;
continue;
}
return -EINVAL;
}
if (card < 0 || device < 0)
return -EINVAL;
return snd_pcm_hw_open_subdevice(handlep, card, device, subdevice, stream, mode);
}
static int _snd_pcm_open_plug(snd_pcm_t **handlep, snd_config_t *conf,
int stream, int mode)
{
snd_config_iterator_t i;
long card = -1, device = -1, subdevice = -1;
char *str;
int err;
snd_config_foreach(i, conf) {
snd_config_t *n = snd_config_entry(i);
if (strcmp(n->id, "comment") == 0)
continue;
if (strcmp(n->id, "type") == 0)
continue;
if (strcmp(n->id, "stream") == 0)
continue;
if (strcmp(n->id, "card") == 0) {
err = snd_config_integer_get(n, &card);
if (err < 0) {
err = snd_config_string_get(n, &str);
if (err < 0)
return -EINVAL;
card = snd_card_name(str);
if (card < 0)
return card;
}
continue;
}
if (strcmp(n->id, "device") == 0) {
err = snd_config_integer_get(n, &device);
if (err < 0)
return err;
continue;
}
if (strcmp(n->id, "subdevice") == 0) {
err = snd_config_integer_get(n, &subdevice);
if (err < 0)
return err;
continue;
}
return -EINVAL;
}
if (card < 0 || device < 0)
return -EINVAL;
return snd_pcm_plug_open_subdevice(handlep, card, device, subdevice, stream, mode);
}
static int _snd_pcm_open_multi(snd_pcm_t **handle, snd_config_t *conf,
int stream, int mode)
{
snd_config_iterator_t i;
char *str;
int err;
snd_config_foreach(i, conf) {
snd_config_t *n = snd_config_entry(i);
if (strcmp(n->id, "comment") == 0)
continue;
if (strcmp(n->id, "type") == 0)
continue;
if (strcmp(n->id, "stream") == 0)
continue;
if (strcmp(n->id, "slave") == 0) {
if (snd_config_type(n) != SND_CONFIG_TYPE_COMPOUND)
return -EINVAL;
/* Not yet implemented */
continue;
}
if (strcmp(n->id, "binding") == 0) {
if (snd_config_type(n) != SND_CONFIG_TYPE_COMPOUND)
return -EINVAL;
/* Not yet implemented */
continue;
}
return -EINVAL;
}
return -ENOSYS;
}
int snd_pcm_open(snd_pcm_t **handlep, char *name,
int stream, int mode)
{
char *str;
int err;
snd_config_t *pcm_conf, *conf;
assert(handlep && name);
err = snd_config_update();
if (err < 0)
return err;
err = snd_config_searchv(snd_config, &pcm_conf, "pcm", name, 0);
if (err < 0)
return err;
if (snd_config_type(pcm_conf) != SND_CONFIG_TYPE_COMPOUND)
return -EINVAL;
err = snd_config_search(pcm_conf, "stream", &conf);
if (err >= 0) {
err = snd_config_string_get(conf, &str);
if (err < 0)
return err;
if (strcmp(str, "playback") == 0) {
if (stream != SND_PCM_STREAM_PLAYBACK)
return -EINVAL;
} else if (strcmp(str, "capture") == 0) {
if (stream != SND_PCM_STREAM_CAPTURE)
return -EINVAL;
} else
return -EINVAL;
}
err = snd_config_search(pcm_conf, "type", &conf);
if (err < 0)
return err;
err = snd_config_string_get(conf, &str);
if (err < 0)
return err;
if (strcmp(str, "hw") == 0)
return _snd_pcm_open_hw(handlep, pcm_conf, stream, mode);
else if (strcmp(str, "plug") == 0)
return _snd_pcm_open_plug(handlep, pcm_conf, stream, mode);
else if (strcmp(str, "multi") == 0)
return _snd_pcm_open_multi(handlep, pcm_conf, stream, mode);
else
return -EINVAL;
}