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->card = NULL;
  48     c->name = pa_xstrdup(name);
  49     c->description = pa_xstrdup(description);
  50
  51     c->priority = 0;
  52     c->n_sinks = c->n_sources = 0;
  53     c->max_sink_channels = c->max_source_channels = 0;
  54
  55     return c;
  56 }
  57
  58 void pa_card_profile_free(pa_card_profile *c) {
  59     pa_assert(c);
  60
  61     pa_xfree(c->name);
  62     pa_xfree(c->description);
  63     pa_xfree(c);
  64 }
  65
  66 void pa_card_profile_set_available(pa_card_profile *c, pa_available_t available) {
  67     pa_core *core;
  68
  69     pa_assert(c);
  70     pa_assert(c->card); /* Modify member variable directly during creation instead of using this function */
  71
  72     if (c->available == available)
  73         return;
  74
  75     c->available = available;
  76     pa_log_debug("Setting card %s profile %s to availability status %s", c->card->name, c->name,
  77                  available == PA_AVAILABLE_YES ? "yes" : available == PA_AVAILABLE_NO ? "no" : "unknown");
  78
  79     /* Post subscriptions to the card which owns us */
  80     pa_assert_se(core = c->card->core);
  81     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->card->index);
  82
  83     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_PROFILE_AVAILABLE_CHANGED], c);
  84 }
  85
  86 pa_card_new_data* pa_card_new_data_init(pa_card_new_data *data) {
  87     pa_assert(data);
  88
  89     memset(data, 0, sizeof(*data));
  90     data->proplist = pa_proplist_new();
  91     data->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
  92     data->ports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
  93     return data;
  94 }
  95
  96 void pa_card_new_data_set_name(pa_card_new_data *data, const char *name) {
  97     pa_assert(data);
  98
  99     pa_xfree(data->name);
 100     data->name = pa_xstrdup(name);
 101 }
 102
 103 void pa_card_add_profile(pa_card *c, pa_card_profile *profile) {
 104     pa_assert(c);
 105     pa_assert(profile);
 106
 107     /* take ownership of the profile */
 108     pa_assert_se(pa_hashmap_put(c->profiles, profile->name, profile) >= 0);
 109     profile->card = c;
 110
 111     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 112
 113     pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_CARD_PROFILE_ADDED], profile);
 114 }
 115
 116 void pa_card_add_ports(pa_card *c, pa_hashmap *ports) {
 117     pa_device_port *p;
 118     void *state;
 119
 120     pa_assert(c);
 121     pa_assert(ports);
 122
 123     /* take ownership of the ports */
 124     PA_HASHMAP_FOREACH(p, ports, state) {
 125         p->card = c;
 126         pa_assert_se(pa_hashmap_put(c->ports, p->name, p) >= 0);
 127     }
 128
 129     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 130
 131     while ((p = pa_hashmap_steal_first(ports)) != NULL)
 132         pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_PORT_ADDED], p);
 133 }
 134
 135 void pa_card_new_data_set_profile(pa_card_new_data *data, const char *profile) {
 136     pa_assert(data);
 137
 138     pa_xfree(data->active_profile);
 139     data->active_profile = pa_xstrdup(profile);
 140 }
 141
 142 void pa_card_new_data_done(pa_card_new_data *data) {
 143
 144     pa_assert(data);
 145
 146     pa_proplist_free(data->proplist);
 147
 148     if (data->profiles)
 149         pa_hashmap_free(data->profiles, (pa_free_cb_t) pa_card_profile_free);
 150
 151     if (data->ports)
 152         pa_hashmap_free(data->ports, (pa_free_cb_t) pa_device_port_unref);
 153
 154     pa_xfree(data->name);
 155     pa_xfree(data->active_profile);
 156 }
 157
 158 pa_card *pa_card_new(pa_core *core, pa_card_new_data *data) {
 159     pa_card *c;
 160     const char *name;
 161     void *state;
 162     pa_card_profile *profile;
 163     pa_device_port *port;
 164
 165     pa_core_assert_ref(core);
 166     pa_assert(data);
 167     pa_assert(data->name);
 168     pa_assert(data->profiles);
 169     pa_assert(!pa_hashmap_isempty(data->profiles));
 170
 171     c = pa_xnew(pa_card, 1);
 172
 173     if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_CARD, c, data->namereg_fail))) {
 174         pa_xfree(c);
 175         return NULL;
 176     }
 177
 178     pa_card_new_data_set_name(data, name);
 179
 180     if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_NEW], data) < 0) {
 181         pa_xfree(c);
 182         pa_namereg_unregister(core, name);
 183         return NULL;
 184     }
 185
 186     c->core = core;
 187     c->name = pa_xstrdup(data->name);
 188     c->proplist = pa_proplist_copy(data->proplist);
 189     c->driver = pa_xstrdup(pa_path_get_filename(data->driver));
 190     c->module = data->module;
 191
 192     c->sinks = pa_idxset_new(NULL, NULL);
 193     c->sources = pa_idxset_new(NULL, NULL);
 194
 195     /* As a minor optimization we just steal the list instead of
 196      * copying it here */
 197     pa_assert_se(c->profiles = data->profiles);
 198     data->profiles = NULL;
 199     pa_assert_se(c->ports = data->ports);
 200     data->ports = NULL;
 201
 202     PA_HASHMAP_FOREACH(profile, c->profiles, state)
 203         profile->card = c;
 204
 205     PA_HASHMAP_FOREACH(port, c->ports, state)
 206         port->card = c;
 207
 208     c->active_profile = NULL;
 209     c->save_profile = FALSE;
 210
 211     if (data->active_profile)
 212         if ((c->active_profile = pa_hashmap_get(c->profiles, data->active_profile)))
 213             c->save_profile = data->save_profile;
 214
 215     if (!c->active_profile) {
 216         PA_HASHMAP_FOREACH(profile, c->profiles, state)
 217             if (!c->active_profile || profile->priority > c->active_profile->priority)
 218                 c->active_profile = profile;
 219     }
 220
 221     c->userdata = NULL;
 222     c->set_profile = NULL;
 223
 224     pa_device_init_description(c->proplist);
 225     pa_device_init_icon(c->proplist, TRUE);
 226     pa_device_init_intended_roles(c->proplist);
 227
 228     pa_assert_se(pa_idxset_put(core->cards, c, &c->index) >= 0);
 229
 230     pa_log_info("Created %u \"%s\"", c->index, c->name);
 231     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_NEW, c->index);
 232
 233     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_PUT], c);
 234     return c;
 235 }
 236
 237 void pa_card_free(pa_card *c) {
 238     pa_core *core;
 239
 240     pa_assert(c);
 241     pa_assert(c->core);
 242
 243     core = c->core;
 244
 245     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_UNLINK], c);
 246
 247     pa_namereg_unregister(core, c->name);
 248
 249     pa_idxset_remove_by_data(c->core->cards, c, NULL);
 250
 251     pa_log_info("Freed %u \"%s\"", c->index, c->name);
 252
 253     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
 254
 255     pa_assert(pa_idxset_isempty(c->sinks));
 256     pa_idxset_free(c->sinks, NULL);
 257     pa_assert(pa_idxset_isempty(c->sources));
 258     pa_idxset_free(c->sources, NULL);
 259
 260     pa_hashmap_free(c->ports, (pa_free_cb_t) pa_device_port_unref);
 261
 262     if (c->profiles)
 263         pa_hashmap_free(c->profiles, (pa_free_cb_t) pa_card_profile_free);
 264
 265     pa_proplist_free(c->proplist);
 266     pa_xfree(c->driver);
 267     pa_xfree(c->name);
 268     pa_xfree(c);
 269 }
 270
 271 int pa_card_set_profile(pa_card *c, const char *name, pa_bool_t save) {
 272     pa_card_profile *profile;
 273     int r;
 274
 275     pa_assert(c);
 276
 277     if (!c->set_profile) {
 278         pa_log_debug("set_profile() operation not implemented for card %u \"%s\"", c->index, c->name);
 279         return -PA_ERR_NOTIMPLEMENTED;
 280     }
 281
 282     if (!name)
 283         return -PA_ERR_NOENTITY;
 284
 285     if (!(profile = pa_hashmap_get(c->profiles, name)))
 286         return -PA_ERR_NOENTITY;
 287
 288     if (c->active_profile == profile) {
 289         c->save_profile = c->save_profile || save;
 290         return 0;
 291     }
 292
 293     if ((r = c->set_profile(c, profile)) < 0)
 294         return r;
 295
 296     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 297
 298     pa_log_info("Changed profile of card %u \"%s\" to %s", c->index, c->name, profile->name);
 299
 300     c->active_profile = profile;
 301     c->save_profile = save;
 302
 303     pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_CARD_PROFILE_CHANGED], c);
 304
 305     return 0;
 306 }
 307
 308 int pa_card_suspend(pa_card *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
 309     pa_sink *sink;
 310     pa_source *source;
 311     uint32_t idx;
 312     int ret = 0;
 313
 314     pa_assert(c);
 315     pa_assert(cause != 0);
 316
 317     PA_IDXSET_FOREACH(sink, c->sinks, idx) {
 318         int r;
 319
 320         if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
 321             ret = r;
 322     }
 323
 324     PA_IDXSET_FOREACH(source, c->sources, idx) {
 325         int r;
 326
 327         if ((r = pa_source_suspend(source, suspend, cause)) < 0)
 328             ret = r;
 329     }
 330
 331     return ret;
 332 }