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alsa: Support ALSA without a use case manager

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The ALSA use case manager is a fairly recent addition,
so make sure the ALSA modules can be used on systems that
have an older version of ALSA.
This commit is contained in:
Pierre Ossman 2013-07-10 16:26:17 +02:00 • committed by Tanu Kaskinen
parent d90d99bd38
commit e55f4edaad
3 changed files with 73 additions and 2 deletions
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58
src/modules/alsa/alsa-ucm.c
View file

@ -66,6 +66,8 @@
} while (0)
#define PA_UCM_IS_MODIFIER_MAPPING(m) ((pa_proplist_gets((m)->proplist, PA_ALSA_PROP_UCM_MODIFIER)) != NULL)
#ifdef HAVE_ALSA_UCM
struct ucm_items {
const char *id;
const char *property;
@ -1618,3 +1620,59 @@ void pa_alsa_ucm_roled_stream_end(pa_alsa_ucm_config *ucm, const char *role, pa_
}
}
}
#else /* HAVE_ALSA_UCM */
/* Dummy functions for systems without UCM support */
int pa_alsa_ucm_query_profiles(pa_alsa_ucm_config *ucm, int card_index) {
pa_log_info("UCM not available.");
return -1;
}
pa_alsa_profile_set* pa_alsa_ucm_add_profile_set(pa_alsa_ucm_config *ucm, pa_channel_map *default_channel_map) {
return NULL;
}
int pa_alsa_ucm_set_profile(pa_alsa_ucm_config *ucm, const char *new_profile, const char *old_profile) {
return -1;
}
int pa_alsa_ucm_get_verb(snd_use_case_mgr_t *uc_mgr, const char *verb_name, const char *verb_desc, pa_alsa_ucm_verb **p_verb) {
return -1;
}
void pa_alsa_ucm_add_ports(
pa_hashmap **hash,
pa_proplist *proplist,
pa_alsa_ucm_mapping_context *context,
bool is_sink,
pa_card *card) {
}
void pa_alsa_ucm_add_ports_combination(
pa_hashmap *hash,
pa_alsa_ucm_mapping_context *context,
bool is_sink,
pa_hashmap *ports,
pa_card_profile *cp,
pa_core *core) {
}
int pa_alsa_ucm_set_port(pa_alsa_ucm_mapping_context *context, pa_device_port *port, bool is_sink) {
return -1;
}
void pa_alsa_ucm_free(pa_alsa_ucm_config *ucm) {
}
void pa_alsa_ucm_mapping_context_free(pa_alsa_ucm_mapping_context *context) {
}
void pa_alsa_ucm_roled_stream_begin(pa_alsa_ucm_config *ucm, const char *role, pa_direction_t dir) {
}
void pa_alsa_ucm_roled_stream_end(pa_alsa_ucm_config *ucm, const char *role, pa_direction_t dir) {
}
#endif