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_config *pa_card_config_new(const char *name) {
  40     pa_card_config *c;
  41
  42     pa_assert(name);
  43
  44     c = pa_xnew0(pa_card_config, 1);
  45     c->name = pa_xstrdup(name);
  46
  47     return c;
  48 }
  49
  50 void pa_card_config_free(pa_card_config *c) {
  51     pa_assert(c);
  52
  53     pa_xfree(c->name);
  54     pa_xfree(c);
  55 }
  56
  57 pa_card_new_data* pa_card_new_data_init(pa_card_new_data *data) {
  58     pa_assert(data);
  59
  60     memset(data, 0, sizeof(*data));
  61     data->proplist = pa_proplist_new();
  62
  63     return data;
  64 }
  65
  66 void pa_card_new_data_set_name(pa_card_new_data *data, const char *name) {
  67     pa_assert(data);
  68
  69     pa_xfree(data->name);
  70     data->name = pa_xstrdup(name);
  71 }
  72
  73 void pa_card_new_data_done(pa_card_new_data *data) {
  74
  75     pa_assert(data);
  76
  77     pa_proplist_free(data->proplist);
  78
  79     if (data->configs) {
  80         pa_card_config *c;
  81
  82         while ((c = pa_hashmap_steal_first(data->configs)))
  83             pa_card_config_free(c);
  84
  85         pa_hashmap_free(data->configs, NULL, NULL);
  86     }
  87
  88     pa_xfree(data->name);
  89 }
  90
  91 pa_card *pa_card_new(pa_core *core, pa_card_new_data *data) {
  92     pa_card *c;
  93     const char *name;
  94
  95     pa_core_assert_ref(core);
  96     pa_assert(data);
  97     pa_assert(data->name);
  98
  99     c = pa_xnew(pa_card, 1);
 100
 101     if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_CARD, c, data->namereg_fail))) {
 102         pa_xfree(c);
 103         return NULL;
 104     }
 105
 106     pa_card_new_data_set_name(data, name);
 107
 108     if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_NEW], data) < 0) {
 109         pa_xfree(c);
 110         pa_namereg_unregister(core, name);
 111         return NULL;
 112     }
 113
 114     c->core = core;
 115     c->name = pa_xstrdup(data->name);
 116     c->proplist = pa_proplist_copy(data->proplist);
 117     c->driver = pa_xstrdup(data->driver);
 118     c->module = data->module;
 119
 120     c->sinks = pa_idxset_new(NULL, NULL);
 121     c->sources = pa_idxset_new(NULL, NULL);
 122
 123     c->configs = data->configs;
 124     data->configs = NULL;
 125     c->active_config = data->active_config;
 126     data->active_config = NULL;
 127
 128     c->userdata = NULL;
 129     c->set_config = NULL;
 130
 131     pa_assert_se(pa_idxset_put(core->cards, c, &c->index) >= 0);
 132
 133     pa_log_info("Created %u \"%s\"", c->index, c->name);
 134     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_NEW, c->index);
 135
 136     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_PUT], c);
 137     return c;
 138 }
 139
 140 void pa_card_free(pa_card *c) {
 141     pa_core *core;
 142     pa_card_config *config;
 143
 144     pa_assert(c);
 145     pa_assert(c->core);
 146
 147     core = c->core;
 148
 149     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_UNLINK], c);
 150
 151     pa_namereg_unregister(core, c->name);
 152
 153     pa_idxset_remove_by_data(c->core->cards, c, NULL);
 154
 155     pa_log_info("Freed %u \"%s\"", c->index, c->name);
 156
 157     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
 158
 159     pa_assert(pa_idxset_isempty(c->sinks));
 160     pa_idxset_free(c->sinks, NULL, NULL);
 161     pa_assert(pa_idxset_isempty(c->sources));
 162     pa_idxset_free(c->sources, NULL, NULL);
 163
 164     while ((config = pa_hashmap_steal_first(c->configs)))
 165         pa_card_config_free(config);
 166
 167     pa_hashmap_free(c->configs, NULL, NULL);
 168
 169     pa_proplist_free(c->proplist);
 170     pa_xfree(c->driver);
 171     pa_xfree(c->name);
 172     pa_xfree(c);
 173
 174     pa_core_check_idle(core);
 175 }
 176
 177 int pa_card_set_config(pa_card *c, const char *name) {
 178     pa_card_config *config;
 179     pa_assert(c);
 180
 181     if (!c->set_config) {
 182         pa_log_warn("set_config() operation not implemented for card %u", c->index);
 183         return -1;
 184     }
 185
 186     if (!c->configs)
 187         return -1;
 188
 189     if (!(config = pa_hashmap_get(c->configs, name)))
 190         return -1;
 191
 192     if (c->set_config(c, config) < 0)
 193         return -1;
 194
 195     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 196
 197     return 0;
 198 }