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     pa_assert(!c->card); /* Card profiles shouldn't be freed before removing them from the card. */
  61
  62     pa_xfree(c->name);
  63     pa_xfree(c->description);
  64     pa_xfree(c);
  65 }
  66
  67 pa_card_new_data* pa_card_new_data_init(pa_card_new_data *data) {
  68     pa_assert(data);
  69
  70     memset(data, 0, sizeof(*data));
  71     data->proplist = pa_proplist_new();
  72     data->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
  73     data->ports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
  74     return data;
  75 }
  76
  77 void pa_card_new_data_set_name(pa_card_new_data *data, const char *name) {
  78     pa_assert(data);
  79
  80     pa_xfree(data->name);
  81     data->name = pa_xstrdup(name);
  82 }
  83
  84 void pa_card_add_profile(pa_card *c, pa_card_profile *profile) {
  85     pa_assert(c);
  86     pa_assert(profile);
  87
  88     /* take ownership of the profile */
  89     pa_assert_se(pa_hashmap_put(c->profiles, profile->name, profile) >= 0);
  90     profile->card = c;
  91
  92     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
  93
  94     pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_CARD_PROFILE_ADDED], profile);
  95 }
  96
  97 void pa_card_add_ports(pa_card *c, pa_hashmap *ports) {
  98     pa_device_port *p;
  99     void *state;
 100
 101     pa_assert(c);
 102     pa_assert(ports);
 103
 104     /* take ownership of the ports */
 105     PA_HASHMAP_FOREACH(p, ports, state) {
 106         p->card = c;
 107         pa_assert_se(pa_hashmap_put(c->ports, p->name, p) >= 0);
 108     }
 109
 110     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 111
 112     while ((p = pa_hashmap_steal_first(ports)) != NULL)
 113         pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_PORT_ADDED], p);
 114 }
 115
 116 void pa_card_new_data_set_profile(pa_card_new_data *data, const char *profile) {
 117     pa_assert(data);
 118
 119     pa_xfree(data->active_profile);
 120     data->active_profile = pa_xstrdup(profile);
 121 }
 122
 123 void pa_card_new_data_done(pa_card_new_data *data) {
 124
 125     pa_assert(data);
 126
 127     pa_proplist_free(data->proplist);
 128
 129     if (data->profiles) {
 130         pa_card_profile *c;
 131
 132         while ((c = pa_hashmap_steal_first(data->profiles)))
 133             pa_card_profile_free(c);
 134
 135         pa_hashmap_free(data->profiles, NULL, NULL);
 136     }
 137
 138     if (data->ports)
 139         pa_device_port_hashmap_free(data->ports);
 140
 141     pa_xfree(data->name);
 142     pa_xfree(data->active_profile);
 143 }
 144
 145 pa_card *pa_card_new(pa_core *core, pa_card_new_data *data) {
 146     pa_card *c;
 147     const char *name;
 148     void *state;
 149     pa_card_profile *profile;
 150     pa_device_port *port;
 151
 152     pa_core_assert_ref(core);
 153     pa_assert(data);
 154     pa_assert(data->name);
 155     pa_assert(data->profiles);
 156     pa_assert(!pa_hashmap_isempty(data->profiles));
 157
 158     c = pa_xnew(pa_card, 1);
 159
 160     if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_CARD, c, data->namereg_fail))) {
 161         pa_xfree(c);
 162         return NULL;
 163     }
 164
 165     pa_card_new_data_set_name(data, name);
 166
 167     if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_NEW], data) < 0) {
 168         pa_xfree(c);
 169         pa_namereg_unregister(core, name);
 170         return NULL;
 171     }
 172
 173     c->core = core;
 174     c->name = pa_xstrdup(data->name);
 175     c->proplist = pa_proplist_copy(data->proplist);
 176     c->driver = pa_xstrdup(pa_path_get_filename(data->driver));
 177     c->module = data->module;
 178
 179     c->sinks = pa_idxset_new(NULL, NULL);
 180     c->sources = pa_idxset_new(NULL, NULL);
 181
 182     /* As a minor optimization we just steal the list instead of
 183      * copying it here */
 184     pa_assert_se(c->profiles = data->profiles);
 185     data->profiles = NULL;
 186     pa_assert_se(c->ports = data->ports);
 187     data->ports = NULL;
 188
 189     PA_HASHMAP_FOREACH(profile, c->profiles, state)
 190         profile->card = c;
 191
 192     PA_HASHMAP_FOREACH(port, c->ports, state)
 193         port->card = c;
 194
 195     c->active_profile = NULL;
 196     c->save_profile = FALSE;
 197
 198     if (data->active_profile)
 199         if ((c->active_profile = pa_hashmap_get(c->profiles, data->active_profile)))
 200             c->save_profile = data->save_profile;
 201
 202     if (!c->active_profile) {
 203         PA_HASHMAP_FOREACH(profile, c->profiles, state)
 204             if (!c->active_profile || profile->priority > c->active_profile->priority)
 205                 c->active_profile = profile;
 206     }
 207
 208     c->userdata = NULL;
 209     c->set_profile = NULL;
 210
 211     pa_device_init_description(c->proplist);
 212     pa_device_init_icon(c->proplist, TRUE);
 213     pa_device_init_intended_roles(c->proplist);
 214
 215     pa_assert_se(pa_idxset_put(core->cards, c, &c->index) >= 0);
 216
 217     pa_log_info("Created %u \"%s\"", c->index, c->name);
 218     pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_NEW, c->index);
 219
 220     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_PUT], c);
 221     return c;
 222 }
 223
 224 void pa_card_free(pa_card *c) {
 225     pa_core *core;
 226
 227     pa_assert(c);
 228     pa_assert(c->core);
 229
 230     core = c->core;
 231
 232     pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_UNLINK], c);
 233
 234     pa_namereg_unregister(core, c->name);
 235
 236     pa_idxset_remove_by_data(c->core->cards, c, NULL);
 237
 238     pa_log_info("Freed %u \"%s\"", c->index, c->name);
 239
 240     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
 241
 242     pa_assert(pa_idxset_isempty(c->sinks));
 243     pa_idxset_free(c->sinks, NULL, NULL);
 244     pa_assert(pa_idxset_isempty(c->sources));
 245     pa_idxset_free(c->sources, NULL, NULL);
 246
 247     pa_device_port_hashmap_free(c->ports);
 248
 249     if (c->profiles) {
 250         pa_card_profile *p;
 251
 252         while ((p = pa_hashmap_steal_first(c->profiles))) {
 253             p->card = NULL;
 254             pa_card_profile_free(p);
 255         }
 256
 257         pa_hashmap_free(c->profiles, NULL, NULL);
 258     }
 259
 260     pa_proplist_free(c->proplist);
 261     pa_xfree(c->driver);
 262     pa_xfree(c->name);
 263     pa_xfree(c);
 264 }
 265
 266 int pa_card_set_profile(pa_card *c, const char *name, pa_bool_t save) {
 267     pa_card_profile *profile;
 268     int r;
 269
 270     pa_assert(c);
 271
 272     if (!c->set_profile) {
 273         pa_log_debug("set_profile() operation not implemented for card %u \"%s\"", c->index, c->name);
 274         return -PA_ERR_NOTIMPLEMENTED;
 275     }
 276
 277     if (!name)
 278         return -PA_ERR_NOENTITY;
 279
 280     if (!(profile = pa_hashmap_get(c->profiles, name)))
 281         return -PA_ERR_NOENTITY;
 282
 283     if (c->active_profile == profile) {
 284         c->save_profile = c->save_profile || save;
 285         return 0;
 286     }
 287
 288     if ((r = c->set_profile(c, profile)) < 0)
 289         return r;
 290
 291     pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
 292
 293     pa_log_info("Changed profile of card %u \"%s\" to %s", c->index, c->name, profile->name);
 294
 295     c->active_profile = profile;
 296     c->save_profile = save;
 297
 298     pa_hook_fire(&c->core->hooks[PA_CORE_HOOK_CARD_PROFILE_CHANGED], c);
 299
 300     return 0;
 301 }
 302
 303 int pa_card_suspend(pa_card *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
 304     pa_sink *sink;
 305     pa_source *source;
 306     uint32_t idx;
 307     int ret = 0;
 308
 309     pa_assert(c);
 310     pa_assert(cause != 0);
 311
 312     PA_IDXSET_FOREACH(sink, c->sinks, idx) {
 313         int r;
 314
 315         if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
 316             ret = r;
 317     }
 318
 319     PA_IDXSET_FOREACH(source, c->sources, idx) {
 320         int r;
 321
 322         if ((r = pa_source_suspend(source, suspend, cause)) < 0)
 323             ret = r;
 324     }
 325
 326     return ret;
 327 }