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     c->priority = 0;
  49     c->n_sinks = c->n_sources = 0;
  50     c->max_sink_channels = c->max_source_channels = 0;
  51
  52     return c;
  53 }
  54
  55 void pa_card_profile_free(pa_card_profile *c) {
  56     pa_assert(c);
  57
  58     pa_xfree(c->name);
  59     pa_xfree(c->description);
  60     pa_xfree(c);
  61 }
  62
  63 pa_card_new_data* pa_card_new_data_init(pa_card_new_data *data) {
  64     pa_assert(data);
  65
  66     memset(data, 0, sizeof(*data));
  67     data->proplist = pa_proplist_new();
  68
  69     return data;
  70 }
  71
  72 void pa_card_new_data_set_name(pa_card_new_data *data, const char *name) {
  73     pa_assert(data);
  74
  75     pa_xfree(data->name);
  76     data->name = pa_xstrdup(name);
  77 }
  78
  79 void pa_card_new_data_done(pa_card_new_data *data) {
  80
  81     pa_assert(data);
  82
  83     pa_proplist_free(data->proplist);
  84
  85     if (data->profiles) {
  86         pa_card_profile *c;
  87
  88         while ((c = pa_hashmap_steal_first(data->profiles)))
  89             pa_card_profile_free(c);
  90
  91         pa_hashmap_free(data->profiles, NULL, NULL);
  92     }
  93
  94     pa_xfree(data->name);
  95 }
  96
  97 pa_card *pa_card_new(pa_core *core, pa_card_new_data *data) {
  98     pa_card *c;
  99     const char *name;
 100
 101     pa_core_assert_ref(core);
 102     pa_assert(data);
 103     pa_assert(data->name);
 104
 105     c = pa_xnew(pa_card, 1);
 106
 107     if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_CARD, c, data->namereg_fail))) {
 108         pa_xfree(c);
 109         return NULL;
 110     }
 111
 112     pa_card_new_data_set_name(data, name);
 113
 114     if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_NEW], data) < 0) {
 115         pa_xfree(c);
 116         pa_namereg_unregister(core, name);
 117         return NULL;
 118     }
 119
 120     c->core = core;
 121     c->name = pa_xstrdup(data->name);
 122     c->proplist = pa_proplist_copy(data->proplist);
 123     c->driver = pa_xstrdup(data->driver);
 124     c->module = data->module;
 125
 126     c->sinks = pa_idxset_new(NULL, NULL);
 127     c->sources = pa_idxset_new(NULL, NULL);
 128
 129     c->profiles = data->profiles;
 130     data->profiles = NULL;
 131     if (!(c->active_profile = data->active_profile))
 132         if (c->profiles) {
 133             void *state = NULL;
 134             pa_card_profile *p;
 135
 136             while ((p = pa_hashmap_iterate(c->profiles, &state, NULL))) {
 137                 if (!c->active_profile ||
 138                     p->priority > c->active_profile->priority)
 139
 140                     c->active_profile = p;
 141             }
 142         }
 143     data->active_profile = NULL;
 144
 145     c->userdata = NULL;
 146     c->set_profile = NULL;
 147
 148     pa_assert_se(pa_idxset_put(core->cards, c, &c->index) >= 0);
 149
 150     pa_log_info("Created %u \"%s\"", c->index, c->name);
 151     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_NEW, c->index);
 152
 153     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_PUT], c);
 154     return c;
 155 }
 156
 157 void pa_card_free(pa_card *c) {
 158     pa_core *core;
 159     pa_card_profile *profile;
 160
 161     pa_assert(c);
 162     pa_assert(c->core);
 163
 164     core = c->core;
 165
 166     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_UNLINK], c);
 167
 168     pa_namereg_unregister(core, c->name);
 169
 170     pa_idxset_remove_by_data(c->core->cards, c, NULL);
 171
 172     pa_log_info("Freed %u \"%s\"", c->index, c->name);
 173
 174     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
 175
 176     pa_assert(pa_idxset_isempty(c->sinks));
 177     pa_idxset_free(c->sinks, NULL, NULL);
 178     pa_assert(pa_idxset_isempty(c->sources));
 179     pa_idxset_free(c->sources, NULL, NULL);
 180
 181     if (c->profiles) {
 182         while ((profile = pa_hashmap_steal_first(c->profiles)))
 183             pa_card_profile_free(profile);
 184
 185         pa_hashmap_free(c->profiles, NULL, NULL);
 186     }
 187
 188     pa_proplist_free(c->proplist);
 189     pa_xfree(c->driver);
 190     pa_xfree(c->name);
 191     pa_xfree(c);
 192
 193     pa_core_check_idle(core);
 194 }
 195
 196 int pa_card_set_profile(pa_card *c, const char *name) {
 197     pa_card_profile *profile;
 198     pa_assert(c);
 199
 200     if (!c->set_profile) {
 201         pa_log_warn("set_profile() operation not implemented for card %u", c->index);
 202         return -1;
 203     }
 204
 205     if (!c->profiles)
 206         return -1;
 207
 208     if (!(profile = pa_hashmap_get(c->profiles, name)))
 209         return -1;
 210
 211     if (c->active_profile == profile)
 212         return 0;
 213
 214     if (c->set_profile(c, profile) < 0)
 215         return -1;
 216
 217     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 218
 219     return 0;
 220 }