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