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