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 2.1 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 #include <pulse/util.h>
  32
  33 #include <pulsecore/log.h>
  34 #include <pulsecore/macro.h>
  35 #include <pulsecore/core-util.h>
  36 #include <pulsecore/namereg.h>
  37 #include <pulsecore/device-port.h>
  38
  39 #include "card.h"
  40
  41 pa_card_profile *pa_card_profile_new(const char *name, const char *description, size_t extra) {
  42     pa_card_profile *c;
  43
  44     pa_assert(name);
  45
  46     c = pa_xmalloc(PA_ALIGN(sizeof(pa_card_profile)) + extra);
  47     c->name = pa_xstrdup(name);
  48     c->description = pa_xstrdup(description);
  49
  50     c->priority = 0;
  51     c->n_sinks = c->n_sources = 0;
  52     c->max_sink_channels = c->max_source_channels = 0;
  53
  54     return c;
  55 }
  56
  57 void pa_card_profile_free(pa_card_profile *c) {
  58     pa_assert(c);
  59
  60     pa_xfree(c->name);
  61     pa_xfree(c->description);
  62     pa_xfree(c);
  63 }
  64
  65 pa_card_new_data* pa_card_new_data_init(pa_card_new_data *data) {
  66     pa_assert(data);
  67
  68     memset(data, 0, sizeof(*data));
  69     data->proplist = pa_proplist_new();
  70     data->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
  71     data->ports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
  72     return data;
  73 }
  74
  75 void pa_card_new_data_set_name(pa_card_new_data *data, const char *name) {
  76     pa_assert(data);
  77
  78     pa_xfree(data->name);
  79     data->name = pa_xstrdup(name);
  80 }
  81
  82 void pa_card_add_profile(pa_card *c, pa_card_profile *profile) {
  83     pa_assert(c);
  84     pa_assert(profile);
  85
  86     /* take ownership of the profile */
  87     pa_assert_se(pa_hashmap_put(c->profiles, profile->name, profile) >= 0);
  88
  89     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
  90
  91     pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_CARD_PROFILE_ADDED], profile);
  92 }
  93
  94 void pa_card_add_ports(pa_card *c, pa_hashmap *ports) {
  95     pa_device_port *p;
  96     void *state;
  97
  98     pa_assert(c);
  99     pa_assert(ports);
 100
 101     /* take ownership of the ports */
 102     PA_HASHMAP_FOREACH(p, ports, state)
 103         pa_assert_se(pa_hashmap_put(c->ports, p->name, p) >= 0);
 104
 105     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 106
 107     while ((p = pa_hashmap_steal_first(ports)) != NULL)
 108         pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_PORT_ADDED], p);
 109 }
 110
 111 void pa_card_new_data_set_profile(pa_card_new_data *data, const char *profile) {
 112     pa_assert(data);
 113
 114     pa_xfree(data->active_profile);
 115     data->active_profile = pa_xstrdup(profile);
 116 }
 117
 118 void pa_card_new_data_done(pa_card_new_data *data) {
 119
 120     pa_assert(data);
 121
 122     pa_proplist_free(data->proplist);
 123
 124     if (data->profiles) {
 125         pa_card_profile *c;
 126
 127         while ((c = pa_hashmap_steal_first(data->profiles)))
 128             pa_card_profile_free(c);
 129
 130         pa_hashmap_free(data->profiles, NULL, NULL);
 131     }
 132
 133     if (data->ports)
 134         pa_device_port_hashmap_free(data->ports);
 135
 136     pa_xfree(data->name);
 137     pa_xfree(data->active_profile);
 138 }
 139
 140 pa_card *pa_card_new(pa_core *core, pa_card_new_data *data) {
 141     pa_card *c;
 142     const char *name;
 143
 144     pa_core_assert_ref(core);
 145     pa_assert(data);
 146     pa_assert(data->name);
 147     pa_assert(data->profiles);
 148     pa_assert(!pa_hashmap_isempty(data->profiles));
 149
 150     c = pa_xnew(pa_card, 1);
 151
 152     if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_CARD, c, data->namereg_fail))) {
 153         pa_xfree(c);
 154         return NULL;
 155     }
 156
 157     pa_card_new_data_set_name(data, name);
 158
 159     if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_NEW], data) < 0) {
 160         pa_xfree(c);
 161         pa_namereg_unregister(core, name);
 162         return NULL;
 163     }
 164
 165     c->core = core;
 166     c->name = pa_xstrdup(data->name);
 167     c->proplist = pa_proplist_copy(data->proplist);
 168     c->driver = pa_xstrdup(pa_path_get_filename(data->driver));
 169     c->module = data->module;
 170
 171     c->sinks = pa_idxset_new(NULL, NULL);
 172     c->sources = pa_idxset_new(NULL, NULL);
 173
 174     /* As a minor optimization we just steal the list instead of
 175      * copying it here */
 176     c->profiles = data->profiles;
 177     data->profiles = NULL;
 178     c->ports = data->ports;
 179     data->ports = NULL;
 180
 181     c->active_profile = NULL;
 182     c->save_profile = FALSE;
 183
 184     if (data->active_profile)
 185         if ((c->active_profile = pa_hashmap_get(c->profiles, data->active_profile)))
 186             c->save_profile = data->save_profile;
 187
 188     if (!c->active_profile) {
 189         void *state;
 190         pa_card_profile *p;
 191
 192         PA_HASHMAP_FOREACH(p, c->profiles, state)
 193             if (!c->active_profile || p->priority > c->active_profile->priority)
 194                 c->active_profile = p;
 195     }
 196
 197     c->userdata = NULL;
 198     c->set_profile = NULL;
 199
 200     pa_device_init_description(c->proplist);
 201     pa_device_init_icon(c->proplist, TRUE);
 202     pa_device_init_intended_roles(c->proplist);
 203
 204     pa_assert_se(pa_idxset_put(core->cards, c, &c->index) >= 0);
 205
 206     pa_log_info("Created %u \"%s\"", c->index, c->name);
 207     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_NEW, c->index);
 208
 209     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_PUT], c);
 210     return c;
 211 }
 212
 213 void pa_card_free(pa_card *c) {
 214     pa_core *core;
 215
 216     pa_assert(c);
 217     pa_assert(c->core);
 218
 219     core = c->core;
 220
 221     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_UNLINK], c);
 222
 223     pa_namereg_unregister(core, c->name);
 224
 225     pa_idxset_remove_by_data(c->core->cards, c, NULL);
 226
 227     pa_log_info("Freed %u \"%s\"", c->index, c->name);
 228
 229     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
 230
 231     pa_assert(pa_idxset_isempty(c->sinks));
 232     pa_idxset_free(c->sinks, NULL, NULL);
 233     pa_assert(pa_idxset_isempty(c->sources));
 234     pa_idxset_free(c->sources, NULL, NULL);
 235
 236     pa_device_port_hashmap_free(c->ports);
 237
 238     if (c->profiles) {
 239         pa_card_profile *p;
 240
 241         while ((p = pa_hashmap_steal_first(c->profiles)))
 242             pa_card_profile_free(p);
 243
 244         pa_hashmap_free(c->profiles, NULL, NULL);
 245     }
 246
 247     pa_proplist_free(c->proplist);
 248     pa_xfree(c->driver);
 249     pa_xfree(c->name);
 250     pa_xfree(c);
 251 }
 252
 253 int pa_card_set_profile(pa_card *c, const char *name, pa_bool_t save) {
 254     pa_card_profile *profile;
 255     int r;
 256
 257     pa_assert(c);
 258
 259     if (!c->set_profile) {
 260         pa_log_debug("set_profile() operation not implemented for card %u \"%s\"", c->index, c->name);
 261         return -PA_ERR_NOTIMPLEMENTED;
 262     }
 263
 264     if (!name)
 265         return -PA_ERR_NOENTITY;
 266
 267     if (!(profile = pa_hashmap_get(c->profiles, name)))
 268         return -PA_ERR_NOENTITY;
 269
 270     if (c->active_profile == profile) {
 271         c->save_profile = c->save_profile || save;
 272         return 0;
 273     }
 274
 275     if ((r = c->set_profile(c, profile)) < 0)
 276         return r;
 277
 278     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 279
 280     pa_log_info("Changed profile of card %u \"%s\" to %s", c->index, c->name, profile->name);
 281
 282     c->active_profile = profile;
 283     c->save_profile = save;
 284
 285     pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_CARD_PROFILE_CHANGED], c);
 286
 287     return 0;
 288 }
 289
 290 int pa_card_suspend(pa_card *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
 291     pa_sink *sink;
 292     pa_source *source;
 293     uint32_t idx;
 294     int ret = 0;
 295
 296     pa_assert(c);
 297     pa_assert(cause != 0);
 298
 299     PA_IDXSET_FOREACH(sink, c->sinks, idx) {
 300         int r;
 301
 302         if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
 303             ret = r;
 304     }
 305
 306     PA_IDXSET_FOREACH(source, c->sources, idx) {
 307         int r;
 308
 309         if ((r = pa_source_suspend(source, suspend, cause)) < 0)
 310             ret = r;
 311     }
 312
 313     return ret;
 314 }