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/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
Copyright 2011 David Henningsson, Canonical Ltd.
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#include "device-port.h"
#include <pulsecore/card.h>
#include <pulsecore/core-util.h>
PA_DEFINE_PUBLIC_CLASS(pa_device_port, pa_object);
pa_device_port_new_data *pa_device_port_new_data_init(pa_device_port_new_data *data) {
pa_assert(data);
pa_zero(*data);
data->available = PA_AVAILABLE_UNKNOWN;
return data;
}
void pa_device_port_new_data_set_name(pa_device_port_new_data *data, const char *name) {
pa_assert(data);
pa_xfree(data->name);
data->name = pa_xstrdup(name);
}
void pa_device_port_new_data_set_description(pa_device_port_new_data *data, const char *description) {
pa_assert(data);
pa_xfree(data->description);
data->description = pa_xstrdup(description);
}
void pa_device_port_new_data_set_available(pa_device_port_new_data *data, pa_available_t available) {
pa_assert(data);
data->available = available;
}
void pa_device_port_new_data_set_direction(pa_device_port_new_data *data, pa_direction_t direction) {
pa_assert(data);
data->direction = direction;
}
void pa_device_port_new_data_done(pa_device_port_new_data *data) {
pa_assert(data);
pa_xfree(data->name);
pa_xfree(data->description);
}
void pa_device_port_set_preferred_profile(pa_device_port *p, const char *new_pp) {
pa_assert(p);
if (!pa_safe_streq(p->preferred_profile, new_pp)) {
pa_xfree(p->preferred_profile);
p->preferred_profile = pa_xstrdup(new_pp);
}
}
void pa_device_port_set_available(pa_device_port *p, pa_available_t status) {
pa_assert(p);
if (p->available == status)
return;
/* pa_assert(status != PA_AVAILABLE_UNKNOWN); */
p->available = status;
pa_log_debug("Setting port %s to status %s", p->name, status == PA_AVAILABLE_YES ? "yes" :
status == PA_AVAILABLE_NO ? "no" : "unknown");
/* Post subscriptions to the card which owns us */
/* XXX: We need to check p->card, because this function may be called
* before the card object has been created. The card object should probably
* be created before port objects, and then p->card could be non-NULL for
* the whole lifecycle of pa_device_port. */
if (p->card) {
pa_subscription_post(p->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, p->card->index);
pa_hook_fire(&p->core->hooks[PA_CORE_HOOK_PORT_AVAILABLE_CHANGED], p);
}
}
static void device_port_free(pa_object *o) {
pa_device_port *p = PA_DEVICE_PORT(o);
pa_assert(p);
pa_assert(pa_device_port_refcnt(p) == 0);
if (p->proplist)
pa_proplist_free(p->proplist);
if (p->profiles)
pa_hashmap_free(p->profiles);
pa_xfree(p->preferred_profile);
pa_xfree(p->name);
pa_xfree(p->description);
pa_xfree(p);
}
pa_device_port *pa_device_port_new(pa_core *c, pa_device_port_new_data *data, size_t extra) {
pa_device_port *p;
pa_assert(data);
pa_assert(data->name);
pa_assert(data->description);
pa_assert(data->direction == PA_DIRECTION_OUTPUT || data->direction == PA_DIRECTION_INPUT);
p = PA_DEVICE_PORT(pa_object_new_internal(PA_ALIGN(sizeof(pa_device_port)) + extra, pa_device_port_type_id, pa_device_port_check_type));
p->parent.free = device_port_free;
p->name = data->name;
data->name = NULL;
p->description = data->description;
data->description = NULL;
p->core = c;
p->card = NULL;
p->priority = 0;
p->available = data->available;
p->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
p->direction = data->direction;
p->latency_offset = 0;
p->proplist = pa_proplist_new();
return p;
}
void pa_device_port_set_latency_offset(pa_device_port *p, int64_t offset) {
uint32_t state;
pa_core *core;
pa_assert(p);
if (offset == p->latency_offset)
return;
p->latency_offset = offset;
switch (p->direction) {
case PA_DIRECTION_OUTPUT: {
pa_sink *sink;
PA_IDXSET_FOREACH(sink, p->core->sinks, state) {
if (sink->active_port == p) {
pa_sink_set_latency_offset(sink, p->latency_offset);
break;
}
}
break;
}
case PA_DIRECTION_INPUT: {
pa_source *source;
PA_IDXSET_FOREACH(source, p->core->sources, state) {
if (source->active_port == p) {
pa_source_set_latency_offset(source, p->latency_offset);
break;
}
}
break;
}
}
pa_assert_se(core = p->core);
pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, p->card->index);
pa_hook_fire(&core->hooks[PA_CORE_HOOK_PORT_LATENCY_OFFSET_CHANGED], p);
}
pa_device_port *pa_device_port_find_best(pa_hashmap *ports)
{
void *state;
pa_device_port *p, *best = NULL;
if (!ports)
return NULL;
/* First run: skip unavailable ports */
PA_HASHMAP_FOREACH(p, ports, state) {
if (p->available == PA_AVAILABLE_NO)
continue;
if (!best || p->priority > best->priority)
best = p;
}
/* Second run: if only unavailable ports exist, still suggest a port */
if (!best) {
PA_HASHMAP_FOREACH(p, ports, state)
if (!best || p->priority > best->priority)
best = p;
}
return best;
}
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