code.delx.au - pulseaudio/blob - src/pulsecore/card.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2009 Lennart Poettering
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29
  30 #include <pulse/xmalloc.h>
  31
  32 #include <pulsecore/log.h>
  33 #include <pulsecore/macro.h>
  34 #include <pulsecore/core-util.h>
  35 #include <pulsecore/namereg.h>
  36
  37 #include "card.h"
  38
  39 pa_card_profile *pa_card_profile_new(const char *name, const char *description, size_t extra) {
  40     pa_card_profile *c;
  41
  42     pa_assert(name);
  43
  44     c = pa_xmalloc(PA_ALIGN(sizeof(pa_card_profile)) + extra);
  45     c->name = pa_xstrdup(name);
  46     c->description = pa_xstrdup(description);
  47
  48     return c;
  49 }
  50
  51 void pa_card_profile_free(pa_card_profile *c) {
  52     pa_assert(c);
  53
  54     pa_xfree(c->name);
  55     pa_xfree(c->description);
  56     pa_xfree(c);
  57 }
  58
  59 pa_card_new_data* pa_card_new_data_init(pa_card_new_data *data) {
  60     pa_assert(data);
  61
  62     memset(data, 0, sizeof(*data));
  63     data->proplist = pa_proplist_new();
  64
  65     return data;
  66 }
  67
  68 void pa_card_new_data_set_name(pa_card_new_data *data, const char *name) {
  69     pa_assert(data);
  70
  71     pa_xfree(data->name);
  72     data->name = pa_xstrdup(name);
  73 }
  74
  75 void pa_card_new_data_done(pa_card_new_data *data) {
  76
  77     pa_assert(data);
  78
  79     pa_proplist_free(data->proplist);
  80
  81     if (data->profiles) {
  82         pa_card_profile *c;
  83
  84         while ((c = pa_hashmap_steal_first(data->profiles)))
  85             pa_card_profile_free(c);
  86
  87         pa_hashmap_free(data->profiles, NULL, NULL);
  88     }
  89
  90     pa_xfree(data->name);
  91 }
  92
  93 pa_card *pa_card_new(pa_core *core, pa_card_new_data *data) {
  94     pa_card *c;
  95     const char *name;
  96
  97     pa_core_assert_ref(core);
  98     pa_assert(data);
  99     pa_assert(data->name);
 100
 101     c = pa_xnew(pa_card, 1);
 102
 103     if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_CARD, c, data->namereg_fail))) {
 104         pa_xfree(c);
 105         return NULL;
 106     }
 107
 108     pa_card_new_data_set_name(data, name);
 109
 110     if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_NEW], data) < 0) {
 111         pa_xfree(c);
 112         pa_namereg_unregister(core, name);
 113         return NULL;
 114     }
 115
 116     c->core = core;
 117     c->name = pa_xstrdup(data->name);
 118     c->proplist = pa_proplist_copy(data->proplist);
 119     c->driver = pa_xstrdup(data->driver);
 120     c->module = data->module;
 121
 122     c->sinks = pa_idxset_new(NULL, NULL);
 123     c->sources = pa_idxset_new(NULL, NULL);
 124
 125     c->profiles = data->profiles;
 126     data->profiles = NULL;
 127     if (!(c->active_profile = data->active_profile))
 128         if (c->profiles)
 129             c->active_profile = pa_hashmap_first(c->profiles);
 130     data->active_profile = NULL;
 131
 132     c->userdata = NULL;
 133     c->set_profile = NULL;
 134
 135     pa_assert_se(pa_idxset_put(core->cards, c, &c->index) >= 0);
 136
 137     pa_log_info("Created %u \"%s\"", c->index, c->name);
 138     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_NEW, c->index);
 139
 140     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_PUT], c);
 141     return c;
 142 }
 143
 144 void pa_card_free(pa_card *c) {
 145     pa_core *core;
 146     pa_card_profile *profile;
 147
 148     pa_assert(c);
 149     pa_assert(c->core);
 150
 151     core = c->core;
 152
 153     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_UNLINK], c);
 154
 155     pa_namereg_unregister(core, c->name);
 156
 157     pa_idxset_remove_by_data(c->core->cards, c, NULL);
 158
 159     pa_log_info("Freed %u \"%s\"", c->index, c->name);
 160
 161     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
 162
 163     pa_assert(pa_idxset_isempty(c->sinks));
 164     pa_idxset_free(c->sinks, NULL, NULL);
 165     pa_assert(pa_idxset_isempty(c->sources));
 166     pa_idxset_free(c->sources, NULL, NULL);
 167
 168     if (c->profiles) {
 169         while ((profile = pa_hashmap_steal_first(c->profiles)))
 170             pa_card_profile_free(profile);
 171
 172         pa_hashmap_free(c->profiles, NULL, NULL);
 173     }
 174
 175     pa_proplist_free(c->proplist);
 176     pa_xfree(c->driver);
 177     pa_xfree(c->name);
 178     pa_xfree(c);
 179
 180     pa_core_check_idle(core);
 181 }
 182
 183 int pa_card_set_profile(pa_card *c, const char *name) {
 184     pa_card_profile *profile;
 185     pa_assert(c);
 186
 187     if (!c->set_profile) {
 188         pa_log_warn("set_profile() operation not implemented for card %u", c->index);
 189         return -1;
 190     }
 191
 192     if (!c->profiles)
 193         return -1;
 194
 195     if (!(profile = pa_hashmap_get(c->profiles, name)))
 196         return -1;
 197
 198     if (c->active_profile == profile)
 199         return 0;
 200
 201     if (c->set_profile(c, profile) < 0)
 202         return -1;
 203
 204     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 205
 206     return 0;
 207 }