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