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_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_AVAILABLE_UNKNOWN); */
  39
  40     p->available = status;
  41     pa_log_debug("Setting port %s to status %s", p->name, status == PA_AVAILABLE_YES ? "yes" :
  42        status == PA_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, pa_direction_t direction, 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->core = c;
  78     p->name = pa_xstrdup(name);
  79     p->description = pa_xstrdup(description);
  80     p->core = c;
  81     p->card = NULL;
  82     p->priority = 0;
  83     p->available = PA_AVAILABLE_UNKNOWN;
  84     p->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
  85     p->direction = direction;
  86     p->latency_offset = 0;
  87     p->proplist = pa_proplist_new();
  88
  89     return p;
  90 }
  91
  92 void pa_device_port_set_latency_offset(pa_device_port *p, int64_t offset) {
  93     uint32_t state;
  94     pa_core *core;
  95
  96     pa_assert(p);
  97
  98     if (offset == p->latency_offset)
  99         return;
 100
 101     p->latency_offset = offset;
 102
 103     switch (p->direction) {
 104         case PA_DIRECTION_OUTPUT: {
 105             pa_sink *sink;
 106
 107             PA_IDXSET_FOREACH(sink, p->core->sinks, state) {
 108                 if (sink->active_port == p) {
 109                     pa_sink_set_latency_offset(sink, p->latency_offset);
 110                     break;
 111                 }
 112             }
 113
 114             break;
 115         }
 116
 117         case PA_DIRECTION_INPUT: {
 118             pa_source *source;
 119
 120             PA_IDXSET_FOREACH(source, p->core->sources, state) {
 121                 if (source->active_port == p) {
 122                     pa_source_set_latency_offset(source, p->latency_offset);
 123                     break;
 124                 }
 125             }
 126
 127             break;
 128         }
 129     }
 130
 131     pa_assert_se(core = p->core);
 132     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, p->card->index);
 133     pa_hook_fire(&core->hooks[PA_CORE_HOOK_PORT_LATENCY_OFFSET_CHANGED], p);
 134 }