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     uint32_t state;
  32     pa_card *card;
  33 /*    pa_source *source;
  34     pa_sink *sink; */
  35     pa_core *core;
  36
  37     pa_assert(p);
  38
  39     if (p->available == status)
  40         return;
  41
  42 /*    pa_assert(status != PA_PORT_AVAILABLE_UNKNOWN); */
  43
  44     p->available = status;
  45     pa_log_debug("Setting port %s to status %s", p->name, status == PA_PORT_AVAILABLE_YES ? "yes" :
  46        status == PA_PORT_AVAILABLE_NO ? "no" : "unknown");
  47
  48     /* Post subscriptions to the card which owns us */
  49     pa_assert_se(core = p->core);
  50     PA_IDXSET_FOREACH(card, core->cards, state)
  51         if (p == pa_hashmap_get(card->ports, p->name))
  52             pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, card->index);
  53 #if 0
  54 /* This stuff is temporarily commented out while figuring out whether to actually do this */
  55     if (p->is_output)
  56         PA_IDXSET_FOREACH(sink, core->sinks, state)
  57             if (p == pa_hashmap_get(sink->ports, p->name))
  58                 pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, sink->index);
  59     if (p->is_input)
  60         PA_IDXSET_FOREACH(source, core->sources, state)
  61             if (p == pa_hashmap_get(source->ports, p->name))
  62                 pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, source->index);
  63 #endif
  64
  65     pa_hook_fire(&core->hooks[PA_CORE_HOOK_PORT_AVAILABLE_CHANGED], p);
  66 }
  67
  68 static void device_port_free(pa_object *o) {
  69     pa_device_port *p = PA_DEVICE_PORT(o);
  70
  71     pa_assert(p);
  72     pa_assert(pa_device_port_refcnt(p) == 0);
  73
  74     if (p->proplist)
  75         pa_proplist_free(p->proplist);
  76     if (p->profiles)
  77         pa_hashmap_free(p->profiles, NULL, NULL);
  78     pa_xfree(p->name);
  79     pa_xfree(p->description);
  80     pa_xfree(p);
  81 }
  82
  83
  84 pa_device_port *pa_device_port_new(pa_core *c, const char *name, const char *description, size_t extra) {
  85     pa_device_port *p;
  86
  87     pa_assert(name);
  88
  89     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));
  90     p->parent.free = device_port_free;
  91
  92     p->name = pa_xstrdup(name);
  93     p->description = pa_xstrdup(description);
  94     p->core = c;
  95     p->priority = 0;
  96     p->available = PA_PORT_AVAILABLE_UNKNOWN;
  97     p->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
  98     p->is_input = FALSE;
  99     p->is_output = FALSE;
 100     p->latency_offset = 0;
 101     p->proplist = pa_proplist_new();
 102
 103     return p;
 104 }
 105
 106 void pa_device_port_hashmap_free(pa_hashmap *h) {
 107     pa_device_port *p;
 108
 109     pa_assert(h);
 110
 111     while ((p = pa_hashmap_steal_first(h)))
 112         pa_device_port_unref(p);
 113
 114     pa_hashmap_free(h, NULL, NULL);
 115 }
 116
 117 void pa_device_port_set_latency_offset(pa_device_port *p, pa_usec_t offset) {
 118     uint32_t state;
 119
 120     pa_assert(p);
 121
 122     p->latency_offset = offset;
 123
 124     if (p->is_output) {
 125         pa_sink *sink;
 126
 127         PA_IDXSET_FOREACH(sink, p->core->sinks, state)
 128             if (sink->active_port == p) {
 129                 pa_sink_set_latency_offset(sink, p->latency_offset);
 130                 break;
 131             }
 132
 133     } else {
 134         pa_source *source;
 135
 136         PA_IDXSET_FOREACH(source, p->core->sources, state)
 137             if (source->active_port == p) {
 138                 pa_source_set_latency_offset(source, p->latency_offset);
 139                 break;
 140             }
 141     }
 142 }