code.delx.au - pulseaudio/blob - src/pulsecore/device-port.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 Lennart Poettering
   5   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   6   Copyright 2011 David Henningsson, Canonical Ltd.
   7
   8   PulseAudio is free software; you can redistribute it and/or modify
   9   it under the terms of the GNU Lesser General Public License as published
  10   by the Free Software Foundation; either version 2.1 of the License,
  11   or (at your option) any later version.
  12
  13   PulseAudio is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with PulseAudio; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21   USA.
  22 ***/
  23
  24 #include "device-port.h"
  25 #include <pulsecore/card.h>
  26
  27 PA_DEFINE_PUBLIC_CLASS(pa_device_port, pa_object);
  28
  29 void pa_device_port_set_available(pa_device_port *p, pa_port_available_t status)
  30 {
  31     pa_core *core;
  32
  33     pa_assert(p);
  34
  35     if (p->available == status)
  36         return;
  37
  38 /*    pa_assert(status != PA_PORT_AVAILABLE_UNKNOWN); */
  39
  40     p->available = status;
  41     pa_log_debug("Setting port %s to status %s", p->name, status == PA_PORT_AVAILABLE_YES ? "yes" :
  42        status == PA_PORT_AVAILABLE_NO ? "no" : "unknown");
  43
  44     /* Post subscriptions to the card which owns us */
  45     pa_assert_se(core = p->core);
  46     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, p->card->index);
  47
  48     pa_hook_fire(&core->hooks[PA_CORE_HOOK_PORT_AVAILABLE_CHANGED], p);
  49 }
  50
  51 static void device_port_free(pa_object *o) {
  52     pa_device_port *p = PA_DEVICE_PORT(o);
  53
  54     pa_assert(p);
  55     pa_assert(pa_device_port_refcnt(p) == 0);
  56
  57     if (p->proplist)
  58         pa_proplist_free(p->proplist);
  59
  60     if (p->profiles)
  61         pa_hashmap_free(p->profiles, NULL);
  62
  63     pa_xfree(p->name);
  64     pa_xfree(p->description);
  65     pa_xfree(p);
  66 }
  67
  68
  69 pa_device_port *pa_device_port_new(pa_core *c, const char *name, const char *description, size_t extra) {
  70     pa_device_port *p;
  71
  72     pa_assert(name);
  73
  74     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));
  75     p->parent.free = device_port_free;
  76
  77     p->name = pa_xstrdup(name);
  78     p->description = pa_xstrdup(description);
  79     p->core = c;
  80     p->card = NULL;
  81     p->priority = 0;
  82     p->available = PA_PORT_AVAILABLE_UNKNOWN;
  83     p->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
  84     p->is_input = FALSE;
  85     p->is_output = FALSE;
  86     p->latency_offset = 0;
  87     p->proplist = pa_proplist_new();
  88
  89     return p;
  90 }
  91
  92 void pa_device_port_hashmap_free(pa_hashmap *h) {
  93     pa_assert(h);
  94
  95     pa_hashmap_free(h, (pa_free_cb_t) pa_device_port_unref);
  96 }
  97
  98 void pa_device_port_set_latency_offset(pa_device_port *p, int64_t offset) {
  99     uint32_t state;
 100     pa_core *core;
 101
 102     pa_assert(p);
 103
 104     if (offset == p->latency_offset)
 105         return;
 106
 107     p->latency_offset = offset;
 108
 109     if (p->is_output) {
 110         pa_sink *sink;
 111
 112         PA_IDXSET_FOREACH(sink, p->core->sinks, state)
 113             if (sink->active_port == p) {
 114                 pa_sink_set_latency_offset(sink, p->latency_offset);
 115                 break;
 116             }
 117
 118     } else {
 119         pa_source *source;
 120
 121         PA_IDXSET_FOREACH(source, p->core->sources, state)
 122             if (source->active_port == p) {
 123                 pa_source_set_latency_offset(source, p->latency_offset);
 124                 break;
 125             }
 126     }
 127
 128     pa_assert_se(core = p->core);
 129     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, p->card->index);
 130     pa_hook_fire(&core->hooks[PA_CORE_HOOK_PORT_LATENCY_OFFSET_CHANGED], p);
 131 }