code.delx.au - pulseaudio/blob - src/modules/alsa/module-alsa-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 <pulse/xmalloc.h>
  27
  28 #include <pulsecore/core-util.h>
  29 #include <pulsecore/i18n.h>
  30 #include <pulsecore/modargs.h>
  31 #include <pulsecore/queue.h>
  32
  33 #include <modules/reserve-wrap.h>
  34
  35 #ifdef HAVE_UDEV
  36 #include <modules/udev-util.h>
  37 #endif
  38
  39 #include "alsa-util.h"
  40 #include "alsa-ucm.h"
  41 #include "alsa-sink.h"
  42 #include "alsa-source.h"
  43 #include "module-alsa-card-symdef.h"
  44
  45 PA_MODULE_AUTHOR("Lennart Poettering");
  46 PA_MODULE_DESCRIPTION("ALSA Card");
  47 PA_MODULE_VERSION(PACKAGE_VERSION);
  48 PA_MODULE_LOAD_ONCE(false);
  49 PA_MODULE_USAGE(
  50         "name=<name for the card/sink/source, to be prefixed> "
  51         "card_name=<name for the card> "
  52         "card_properties=<properties for the card> "
  53         "sink_name=<name for the sink> "
  54         "sink_properties=<properties for the sink> "
  55         "source_name=<name for the source> "
  56         "source_properties=<properties for the source> "
  57         "namereg_fail=<when false attempt to synthesise new names if they are already taken> "
  58         "device_id=<ALSA card index> "
  59         "format=<sample format> "
  60         "rate=<sample rate> "
  61         "fragments=<number of fragments> "
  62         "fragment_size=<fragment size> "
  63         "mmap=<enable memory mapping?> "
  64         "tsched=<enable system timer based scheduling mode?> "
  65         "tsched_buffer_size=<buffer size when using timer based scheduling> "
  66         "tsched_buffer_watermark=<lower fill watermark> "
  67         "profile=<profile name> "
  68         "fixed_latency_range=<disable latency range changes on underrun?> "
  69         "ignore_dB=<ignore dB information from the device?> "
  70         "deferred_volume=<Synchronize software and hardware volume changes to avoid momentary jumps?> "
  71         "profile_set=<profile set configuration file> "
  72         "paths_dir=<directory containing the path configuration files> "
  73         "use_ucm=<load use case manager> "
  74 );
  75
  76 static const char* const valid_modargs[] = {
  77     "name",
  78     "card_name",
  79     "card_properties",
  80     "sink_name",
  81     "sink_properties",
  82     "source_name",
  83     "source_properties",
  84     "namereg_fail",
  85     "device_id",
  86     "format",
  87     "rate",
  88     "fragments",
  89     "fragment_size",
  90     "mmap",
  91     "tsched",
  92     "tsched_buffer_size",
  93     "tsched_buffer_watermark",
  94     "fixed_latency_range",
  95     "profile",
  96     "ignore_dB",
  97     "deferred_volume",
  98     "profile_set",
  99     "paths_dir",
 100     "use_ucm",
 101     NULL
 102 };
 103
 104 #define DEFAULT_DEVICE_ID "0"
 105
 106 struct userdata {
 107     pa_core *core;
 108     pa_module *module;
 109
 110     char *device_id;
 111     int alsa_card_index;
 112
 113     snd_mixer_t *mixer_handle;
 114     snd_hctl_t *hctl_handle;
 115     pa_hashmap *jacks;
 116     pa_alsa_fdlist *mixer_fdl;
 117
 118     pa_card *card;
 119
 120     pa_modargs *modargs;
 121
 122     pa_alsa_profile_set *profile_set;
 123
 124     /* ucm stuffs */
 125     bool use_ucm;
 126     pa_alsa_ucm_config ucm;
 127
 128     /* hooks for modifier action */
 129     pa_hook_slot
 130         *sink_input_put_hook_slot,
 131         *source_output_put_hook_slot,
 132         *sink_input_unlink_hook_slot,
 133         *source_output_unlink_hook_slot;
 134 };
 135
 136 struct profile_data {
 137     pa_alsa_profile *profile;
 138 };
 139
 140 static void add_profiles(struct userdata *u, pa_hashmap *h, pa_hashmap *ports) {
 141     pa_alsa_profile *ap;
 142     void *state;
 143
 144     pa_assert(u);
 145     pa_assert(h);
 146
 147     PA_HASHMAP_FOREACH(ap, u->profile_set->profiles, state) {
 148         struct profile_data *d;
 149         pa_card_profile *cp;
 150         pa_alsa_mapping *m;
 151         uint32_t idx;
 152
 153         cp = pa_card_profile_new(ap->name, ap->description, sizeof(struct profile_data));
 154         cp->priority = ap->priority;
 155
 156         if (ap->output_mappings) {
 157             cp->n_sinks = pa_idxset_size(ap->output_mappings);
 158
 159             PA_IDXSET_FOREACH(m, ap->output_mappings, idx) {
 160                 if (u->use_ucm)
 161                     pa_alsa_ucm_add_ports_combination(NULL, &m->ucm_context, true, ports, cp, u->core);
 162                 else
 163                     pa_alsa_path_set_add_ports(m->output_path_set, cp, ports, NULL, u->core);
 164                 if (m->channel_map.channels > cp->max_sink_channels)
 165                     cp->max_sink_channels = m->channel_map.channels;
 166             }
 167         }
 168
 169         if (ap->input_mappings) {
 170             cp->n_sources = pa_idxset_size(ap->input_mappings);
 171
 172             PA_IDXSET_FOREACH(m, ap->input_mappings, idx) {
 173                 if (u->use_ucm)
 174                     pa_alsa_ucm_add_ports_combination(NULL, &m->ucm_context, false, ports, cp, u->core);
 175                 else
 176                     pa_alsa_path_set_add_ports(m->input_path_set, cp, ports, NULL, u->core);
 177                 if (m->channel_map.channels > cp->max_source_channels)
 178                     cp->max_source_channels = m->channel_map.channels;
 179             }
 180         }
 181
 182         d = PA_CARD_PROFILE_DATA(cp);
 183         d->profile = ap;
 184
 185         pa_hashmap_put(h, cp->name, cp);
 186     }
 187 }
 188
 189 static void add_disabled_profile(pa_hashmap *profiles) {
 190     pa_card_profile *p;
 191     struct profile_data *d;
 192
 193     p = pa_card_profile_new("off", _("Off"), sizeof(struct profile_data));
 194
 195     d = PA_CARD_PROFILE_DATA(p);
 196     d->profile = NULL;
 197
 198     pa_hashmap_put(profiles, p->name, p);
 199 }
 200
 201 static int card_set_profile(pa_card *c, pa_card_profile *new_profile) {
 202     struct userdata *u;
 203     struct profile_data *nd, *od;
 204     uint32_t idx;
 205     pa_alsa_mapping *am;
 206     pa_queue *sink_inputs = NULL, *source_outputs = NULL;
 207     int ret = 0;
 208
 209     pa_assert(c);
 210     pa_assert(new_profile);
 211     pa_assert_se(u = c->userdata);
 212
 213     nd = PA_CARD_PROFILE_DATA(new_profile);
 214     od = PA_CARD_PROFILE_DATA(c->active_profile);
 215
 216     if (od->profile && od->profile->output_mappings)
 217         PA_IDXSET_FOREACH(am, od->profile->output_mappings, idx) {
 218             if (!am->sink)
 219                 continue;
 220
 221             if (nd->profile &&
 222                 nd->profile->output_mappings &&
 223                 pa_idxset_get_by_data(nd->profile->output_mappings, am, NULL))
 224                 continue;
 225
 226             sink_inputs = pa_sink_move_all_start(am->sink, sink_inputs);
 227             pa_alsa_sink_free(am->sink);
 228             am->sink = NULL;
 229         }
 230
 231     if (od->profile && od->profile->input_mappings)
 232         PA_IDXSET_FOREACH(am, od->profile->input_mappings, idx) {
 233             if (!am->source)
 234                 continue;
 235
 236             if (nd->profile &&
 237                 nd->profile->input_mappings &&
 238                 pa_idxset_get_by_data(nd->profile->input_mappings, am, NULL))
 239                 continue;
 240
 241             source_outputs = pa_source_move_all_start(am->source, source_outputs);
 242             pa_alsa_source_free(am->source);
 243             am->source = NULL;
 244         }
 245
 246     /* if UCM is available for this card then update the verb */
 247     if (u->use_ucm) {
 248         if (pa_alsa_ucm_set_profile(&u->ucm, nd->profile ? nd->profile->name : NULL,
 249                     od->profile ? od->profile->name : NULL) < 0) {
 250             ret = -1;
 251             goto finish;
 252         }
 253     }
 254
 255     if (nd->profile && nd->profile->output_mappings)
 256         PA_IDXSET_FOREACH(am, nd->profile->output_mappings, idx) {
 257
 258             if (!am->sink)
 259                 am->sink = pa_alsa_sink_new(c->module, u->modargs, __FILE__, c, am);
 260
 261             if (sink_inputs && am->sink) {
 262                 pa_sink_move_all_finish(am->sink, sink_inputs, false);
 263                 sink_inputs = NULL;
 264             }
 265         }
 266
 267     if (nd->profile && nd->profile->input_mappings)
 268         PA_IDXSET_FOREACH(am, nd->profile->input_mappings, idx) {
 269
 270             if (!am->source)
 271                 am->source = pa_alsa_source_new(c->module, u->modargs, __FILE__, c, am);
 272
 273             if (source_outputs && am->source) {
 274                 pa_source_move_all_finish(am->source, source_outputs, false);
 275                 source_outputs = NULL;
 276             }
 277         }
 278
 279 finish:
 280     if (sink_inputs)
 281         pa_sink_move_all_fail(sink_inputs);
 282
 283     if (source_outputs)
 284         pa_source_move_all_fail(source_outputs);
 285
 286     return ret;
 287 }
 288
 289 static void init_profile(struct userdata *u) {
 290     uint32_t idx;
 291     pa_alsa_mapping *am;
 292     struct profile_data *d;
 293     pa_alsa_ucm_config *ucm = &u->ucm;
 294
 295     pa_assert(u);
 296
 297     d = PA_CARD_PROFILE_DATA(u->card->active_profile);
 298
 299     if (d->profile && u->use_ucm) {
 300         /* Set initial verb */
 301         if (pa_alsa_ucm_set_profile(ucm, d->profile->name, NULL) < 0) {
 302             pa_log("Failed to set ucm profile %s", d->profile->name);
 303             return;
 304         }
 305     }
 306
 307     if (d->profile && d->profile->output_mappings)
 308         PA_IDXSET_FOREACH(am, d->profile->output_mappings, idx)
 309             am->sink = pa_alsa_sink_new(u->module, u->modargs, __FILE__, u->card, am);
 310
 311     if (d->profile && d->profile->input_mappings)
 312         PA_IDXSET_FOREACH(am, d->profile->input_mappings, idx)
 313             am->source = pa_alsa_source_new(u->module, u->modargs, __FILE__, u->card, am);
 314 }
 315
 316 static void report_port_state(pa_device_port *p, struct userdata *u) {
 317     void *state;
 318     pa_alsa_jack *jack;
 319     pa_available_t pa = PA_AVAILABLE_UNKNOWN;
 320     pa_device_port *port;
 321
 322     PA_HASHMAP_FOREACH(jack, u->jacks, state) {
 323         pa_available_t cpa;
 324
 325         if (u->use_ucm)
 326             port = pa_hashmap_get(u->card->ports, jack->name);
 327         else {
 328             if (jack->path)
 329                 port = jack->path->port;
 330             else
 331                 continue;
 332         }
 333
 334         if (p != port)
 335             continue;
 336
 337         cpa = jack->plugged_in ? jack->state_plugged : jack->state_unplugged;
 338
 339         /* "Yes" and "no" trumphs "unknown" if we have more than one jack */
 340         if (cpa == PA_AVAILABLE_UNKNOWN)
 341             continue;
 342
 343         if ((cpa == PA_AVAILABLE_NO && pa == PA_AVAILABLE_YES) ||
 344             (pa == PA_AVAILABLE_NO && cpa == PA_AVAILABLE_YES))
 345             pa_log_warn("Availability of port '%s' is inconsistent!", p->name);
 346         else
 347             pa = cpa;
 348     }
 349
 350     pa_device_port_set_available(p, pa);
 351 }
 352
 353 static int report_jack_state(snd_hctl_elem_t *elem, unsigned int mask) {
 354     struct userdata *u = snd_hctl_elem_get_callback_private(elem);
 355     snd_ctl_elem_value_t *elem_value;
 356     bool plugged_in;
 357     void *state;
 358     pa_alsa_jack *jack;
 359     pa_device_port *port;
 360
 361     pa_assert(u);
 362
 363     if (mask == SND_CTL_EVENT_MASK_REMOVE)
 364         return 0;
 365
 366     snd_ctl_elem_value_alloca(&elem_value);
 367     if (snd_hctl_elem_read(elem, elem_value) < 0) {
 368         pa_log_warn("Failed to read jack detection from '%s'", pa_strnull(snd_hctl_elem_get_name(elem)));
 369         return 0;
 370     }
 371
 372     plugged_in = !!snd_ctl_elem_value_get_boolean(elem_value, 0);
 373
 374     pa_log_debug("Jack '%s' is now %s", pa_strnull(snd_hctl_elem_get_name(elem)), plugged_in ? "plugged in" : "unplugged");
 375
 376     PA_HASHMAP_FOREACH(jack, u->jacks, state)
 377         if (jack->hctl_elem == elem) {
 378             jack->plugged_in = plugged_in;
 379             if (u->use_ucm) {
 380                 pa_assert(u->card->ports);
 381                 port = pa_hashmap_get(u->card->ports, jack->name);
 382                 pa_assert(port);
 383             }
 384             else {
 385                 pa_assert(jack->path);
 386                 pa_assert_se(port = jack->path->port);
 387             }
 388             report_port_state(port, u);
 389         }
 390     return 0;
 391 }
 392
 393 static pa_device_port* find_port_with_eld_device(pa_hashmap *ports, int device) {
 394     void *state;
 395     pa_device_port *p;
 396
 397     PA_HASHMAP_FOREACH(p, ports, state) {
 398         pa_alsa_port_data *data = PA_DEVICE_PORT_DATA(p);
 399         pa_assert(data->path);
 400         if (device == data->path->eld_device)
 401             return p;
 402     }
 403     return NULL;
 404 }
 405
 406 static int hdmi_eld_changed(snd_hctl_elem_t *elem, unsigned int mask) {
 407     struct userdata *u = snd_hctl_elem_get_callback_private(elem);
 408     int device = snd_hctl_elem_get_device(elem);
 409     const char *old_monitor_name;
 410     pa_device_port *p;
 411     pa_hdmi_eld eld;
 412     bool changed = false;
 413
 414     if (mask == SND_CTL_EVENT_MASK_REMOVE)
 415         return 0;
 416
 417     p = find_port_with_eld_device(u->card->ports, device);
 418     if (p == NULL) {
 419         pa_log_error("Invalid device changed in ALSA: %d", device);
 420         return 0;
 421     }
 422
 423     if (pa_alsa_get_hdmi_eld(u->hctl_handle, device, &eld) < 0)
 424         memset(&eld, 0, sizeof(eld));
 425
 426     old_monitor_name = pa_proplist_gets(p->proplist, PA_PROP_DEVICE_PRODUCT_NAME);
 427     if (eld.monitor_name[0] == '\0') {
 428         changed |= old_monitor_name != NULL;
 429         pa_proplist_unset(p->proplist, PA_PROP_DEVICE_PRODUCT_NAME);
 430     } else {
 431         changed |= (old_monitor_name == NULL) || (strcmp(old_monitor_name, eld.monitor_name) != 0);
 432         pa_proplist_sets(p->proplist, PA_PROP_DEVICE_PRODUCT_NAME, eld.monitor_name);
 433     }
 434
 435     if (changed && mask != 0)
 436         pa_subscription_post(u->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, u->card->index);
 437
 438     return 0;
 439 }
 440
 441 static void init_eld_ctls(struct userdata *u) {
 442     void *state;
 443     pa_device_port *port;
 444
 445     if (!u->hctl_handle)
 446         return;
 447
 448     PA_HASHMAP_FOREACH(port, u->card->ports, state) {
 449         pa_alsa_port_data *data = PA_DEVICE_PORT_DATA(port);
 450         snd_hctl_elem_t* hctl_elem;
 451         int device;
 452
 453         pa_assert(data->path);
 454         device = data->path->eld_device;
 455         if (device < 0)
 456             continue;
 457
 458         hctl_elem = pa_alsa_find_eld_ctl(u->hctl_handle, device);
 459         if (!hctl_elem) {
 460             pa_log_debug("No ELD device found for port %s.", port->name);
 461             continue;
 462         }
 463
 464         snd_hctl_elem_set_callback_private(hctl_elem, u);
 465         snd_hctl_elem_set_callback(hctl_elem, hdmi_eld_changed);
 466         hdmi_eld_changed(hctl_elem, 0);
 467     }
 468 }
 469
 470 static void init_jacks(struct userdata *u) {
 471     void *state;
 472     pa_alsa_path* path;
 473     pa_alsa_jack* jack;
 474
 475     u->jacks = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
 476
 477     if (u->use_ucm) {
 478         PA_LLIST_FOREACH(jack, u->ucm.jacks)
 479             if (jack->has_control)
 480                 pa_hashmap_put(u->jacks, jack, jack);
 481     } else {
 482         /* See if we have any jacks */
 483         if (u->profile_set->output_paths)
 484             PA_HASHMAP_FOREACH(path, u->profile_set->output_paths, state)
 485                 PA_LLIST_FOREACH(jack, path->jacks)
 486                     if (jack->has_control)
 487                         pa_hashmap_put(u->jacks, jack, jack);
 488
 489         if (u->profile_set->input_paths)
 490             PA_HASHMAP_FOREACH(path, u->profile_set->input_paths, state)
 491                 PA_LLIST_FOREACH(jack, path->jacks)
 492                     if (jack->has_control)
 493                         pa_hashmap_put(u->jacks, jack, jack);
 494     }
 495
 496     pa_log_debug("Found %d jacks.", pa_hashmap_size(u->jacks));
 497
 498     if (pa_hashmap_size(u->jacks) == 0)
 499         return;
 500
 501     u->mixer_fdl = pa_alsa_fdlist_new();
 502
 503     u->mixer_handle = pa_alsa_open_mixer(u->alsa_card_index, NULL, &u->hctl_handle);
 504     if (u->mixer_handle && pa_alsa_fdlist_set_handle(u->mixer_fdl, NULL, u->hctl_handle, u->core->mainloop) >= 0) {
 505         PA_HASHMAP_FOREACH(jack, u->jacks, state) {
 506             jack->hctl_elem = pa_alsa_find_jack(u->hctl_handle, jack->alsa_name);
 507             if (!jack->hctl_elem) {
 508                 pa_log_warn("Jack '%s' seems to have disappeared.", jack->alsa_name);
 509                 jack->has_control = false;
 510                 continue;
 511             }
 512             snd_hctl_elem_set_callback_private(jack->hctl_elem, u);
 513             snd_hctl_elem_set_callback(jack->hctl_elem, report_jack_state);
 514             report_jack_state(jack->hctl_elem, 0);
 515         }
 516
 517     } else
 518         pa_log("Failed to open hctl/mixer for jack detection");
 519
 520 }
 521
 522 static void set_card_name(pa_card_new_data *data, pa_modargs *ma, const char *device_id) {
 523     char *t;
 524     const char *n;
 525
 526     pa_assert(data);
 527     pa_assert(ma);
 528     pa_assert(device_id);
 529
 530     if ((n = pa_modargs_get_value(ma, "card_name", NULL))) {
 531         pa_card_new_data_set_name(data, n);
 532         data->namereg_fail = true;
 533         return;
 534     }
 535
 536     if ((n = pa_modargs_get_value(ma, "name", NULL)))
 537         data->namereg_fail = true;
 538     else {
 539         n = device_id;
 540         data->namereg_fail = false;
 541     }
 542
 543     t = pa_sprintf_malloc("alsa_card.%s", n);
 544     pa_card_new_data_set_name(data, t);
 545     pa_xfree(t);
 546 }
 547
 548 static pa_hook_result_t sink_input_put_hook_callback(pa_core *c, pa_sink_input *sink_input, struct userdata *u) {
 549     const char *role;
 550     pa_sink *sink = sink_input->sink;
 551
 552     pa_assert(sink);
 553
 554     role = pa_proplist_gets(sink_input->proplist, PA_PROP_MEDIA_ROLE);
 555
 556     /* new sink input linked to sink of this card */
 557     if (role && sink->card == u->card)
 558         pa_alsa_ucm_roled_stream_begin(&u->ucm, role, PA_DIRECTION_OUTPUT);
 559
 560     return PA_HOOK_OK;
 561 }
 562
 563 static pa_hook_result_t source_output_put_hook_callback(pa_core *c, pa_source_output *source_output, struct userdata *u) {
 564     const char *role;
 565     pa_source *source = source_output->source;
 566
 567     pa_assert(source);
 568
 569     role = pa_proplist_gets(source_output->proplist, PA_PROP_MEDIA_ROLE);
 570
 571     /* new source output linked to source of this card */
 572     if (role && source->card == u->card)
 573         pa_alsa_ucm_roled_stream_begin(&u->ucm, role, PA_DIRECTION_INPUT);
 574
 575     return PA_HOOK_OK;
 576 }
 577
 578 static pa_hook_result_t sink_input_unlink_hook_callback(pa_core *c, pa_sink_input *sink_input, struct userdata *u) {
 579     const char *role;
 580     pa_sink *sink = sink_input->sink;
 581
 582     pa_assert(sink);
 583
 584     role = pa_proplist_gets(sink_input->proplist, PA_PROP_MEDIA_ROLE);
 585
 586     /* new sink input unlinked from sink of this card */
 587     if (role && sink->card == u->card)
 588         pa_alsa_ucm_roled_stream_end(&u->ucm, role, PA_DIRECTION_OUTPUT);
 589
 590     return PA_HOOK_OK;
 591 }
 592
 593 static pa_hook_result_t source_output_unlink_hook_callback(pa_core *c, pa_source_output *source_output, struct userdata *u) {
 594     const char *role;
 595     pa_source *source = source_output->source;
 596
 597     pa_assert(source);
 598
 599     role = pa_proplist_gets(source_output->proplist, PA_PROP_MEDIA_ROLE);
 600
 601     /* new source output unlinked from source of this card */
 602     if (role && source->card == u->card)
 603         pa_alsa_ucm_roled_stream_end(&u->ucm, role, PA_DIRECTION_INPUT);
 604
 605     return PA_HOOK_OK;
 606 }
 607
 608 int pa__init(pa_module *m) {
 609     pa_card_new_data data;
 610     bool ignore_dB = false;
 611     struct userdata *u;
 612     pa_reserve_wrapper *reserve = NULL;
 613     const char *description;
 614     const char *profile = NULL;
 615     char *fn = NULL;
 616     bool namereg_fail = false;
 617
 618     pa_alsa_refcnt_inc();
 619
 620     pa_assert(m);
 621
 622     m->userdata = u = pa_xnew0(struct userdata, 1);
 623     u->core = m->core;
 624     u->module = m;
 625     u->use_ucm = true;
 626     u->ucm.core = m->core;
 627
 628     if (!(u->modargs = pa_modargs_new(m->argument, valid_modargs))) {
 629         pa_log("Failed to parse module arguments.");
 630         goto fail;
 631     }
 632
 633     u->device_id = pa_xstrdup(pa_modargs_get_value(u->modargs, "device_id", DEFAULT_DEVICE_ID));
 634
 635     if ((u->alsa_card_index = snd_card_get_index(u->device_id)) < 0) {
 636         pa_log("Card '%s' doesn't exist: %s", u->device_id, pa_alsa_strerror(u->alsa_card_index));
 637         goto fail;
 638     }
 639
 640     if (pa_modargs_get_value_boolean(u->modargs, "ignore_dB", &ignore_dB) < 0) {
 641         pa_log("Failed to parse ignore_dB argument.");
 642         goto fail;
 643     }
 644
 645     if (!pa_in_system_mode()) {
 646         char *rname;
 647
 648         if ((rname = pa_alsa_get_reserve_name(u->device_id))) {
 649             reserve = pa_reserve_wrapper_get(m->core, rname);
 650             pa_xfree(rname);
 651
 652             if (!reserve)
 653                 goto fail;
 654         }
 655     }
 656
 657     pa_modargs_get_value_boolean(u->modargs, "use_ucm", &u->use_ucm);
 658     if (u->use_ucm && !pa_alsa_ucm_query_profiles(&u->ucm, u->alsa_card_index)) {
 659         pa_log_info("Found UCM profiles");
 660
 661         u->profile_set = pa_alsa_ucm_add_profile_set(&u->ucm, &u->core->default_channel_map);
 662
 663         /* hook start of sink input/source output to enable modifiers */
 664         /* A little bit later than module-role-cork */
 665         u->sink_input_put_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_PUT], PA_HOOK_LATE+10,
 666                 (pa_hook_cb_t) sink_input_put_hook_callback, u);
 667         u->source_output_put_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], PA_HOOK_LATE+10,
 668                 (pa_hook_cb_t) source_output_put_hook_callback, u);
 669
 670         /* hook end of sink input/source output to disable modifiers */
 671         /* A little bit later than module-role-cork */
 672         u->sink_input_unlink_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK], PA_HOOK_LATE+10,
 673                 (pa_hook_cb_t) sink_input_unlink_hook_callback, u);
 674         u->source_output_unlink_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], PA_HOOK_LATE+10,
 675                 (pa_hook_cb_t) source_output_unlink_hook_callback, u);
 676     }
 677     else {
 678         u->use_ucm = false;
 679 #ifdef HAVE_UDEV
 680         fn = pa_udev_get_property(u->alsa_card_index, "PULSE_PROFILE_SET");
 681 #endif
 682
 683         if (pa_modargs_get_value(u->modargs, "profile_set", NULL)) {
 684             pa_xfree(fn);
 685             fn = pa_xstrdup(pa_modargs_get_value(u->modargs, "profile_set", NULL));
 686         }
 687
 688         u->profile_set = pa_alsa_profile_set_new(fn, &u->core->default_channel_map);
 689         pa_xfree(fn);
 690     }
 691
 692     if (!u->profile_set)
 693         goto fail;
 694
 695     u->profile_set->ignore_dB = ignore_dB;
 696
 697     pa_alsa_profile_set_probe(u->profile_set, u->device_id, &m->core->default_sample_spec, m->core->default_n_fragments, m->core->default_fragment_size_msec);
 698     pa_alsa_profile_set_dump(u->profile_set);
 699
 700     pa_card_new_data_init(&data);
 701     data.driver = __FILE__;
 702     data.module = m;
 703
 704     pa_alsa_init_proplist_card(m->core, data.proplist, u->alsa_card_index);
 705
 706     pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->device_id);
 707     pa_alsa_init_description(data.proplist, NULL);
 708     set_card_name(&data, u->modargs, u->device_id);
 709
 710     /* We need to give pa_modargs_get_value_boolean() a pointer to a local
 711      * variable instead of using &data.namereg_fail directly, because
 712      * data.namereg_fail is a bitfield and taking the address of a bitfield
 713      * variable is impossible. */
 714     namereg_fail = data.namereg_fail;
 715     if (pa_modargs_get_value_boolean(u->modargs, "namereg_fail", &namereg_fail) < 0) {
 716         pa_log("Failed to parse namereg_fail argument.");
 717         pa_card_new_data_done(&data);
 718         goto fail;
 719     }
 720     data.namereg_fail = namereg_fail;
 721
 722     if (reserve)
 723         if ((description = pa_proplist_gets(data.proplist, PA_PROP_DEVICE_DESCRIPTION)))
 724             pa_reserve_wrapper_set_application_device_name(reserve, description);
 725
 726     add_profiles(u, data.profiles, data.ports);
 727
 728     if (pa_hashmap_isempty(data.profiles)) {
 729         pa_log("Failed to find a working profile.");
 730         pa_card_new_data_done(&data);
 731         goto fail;
 732     }
 733
 734     add_disabled_profile(data.profiles);
 735
 736     if (pa_modargs_get_proplist(u->modargs, "card_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
 737         pa_log("Invalid properties");
 738         pa_card_new_data_done(&data);
 739         goto fail;
 740     }
 741
 742     if ((profile = pa_modargs_get_value(u->modargs, "profile", NULL)))
 743         pa_card_new_data_set_profile(&data, profile);
 744
 745     u->card = pa_card_new(m->core, &data);
 746     pa_card_new_data_done(&data);
 747
 748     if (!u->card)
 749         goto fail;
 750
 751     u->card->userdata = u;
 752     u->card->set_profile = card_set_profile;
 753
 754     init_jacks(u);
 755     init_profile(u);
 756     init_eld_ctls(u);
 757
 758     if (reserve)
 759         pa_reserve_wrapper_unref(reserve);
 760
 761     if (!pa_hashmap_isempty(u->profile_set->decibel_fixes))
 762         pa_log_warn("Card %s uses decibel fixes (i.e. overrides the decibel information for some alsa volume elements). "
 763                     "Please note that this feature is meant just as a help for figuring out the correct decibel values. "
 764                     "PulseAudio is not the correct place to maintain the decibel mappings! The fixed decibel values "
 765                     "should be sent to ALSA developers so that they can fix the driver. If it turns out that this feature "
 766                     "is abused (i.e. fixes are not pushed to ALSA), the decibel fix feature may be removed in some future "
 767                     "PulseAudio version.", u->card->name);
 768
 769     return 0;
 770
 771 fail:
 772     if (reserve)
 773         pa_reserve_wrapper_unref(reserve);
 774
 775     pa__done(m);
 776
 777     return -1;
 778 }
 779
 780 int pa__get_n_used(pa_module *m) {
 781     struct userdata *u;
 782     int n = 0;
 783     uint32_t idx;
 784     pa_sink *sink;
 785     pa_source *source;
 786
 787     pa_assert(m);
 788     pa_assert_se(u = m->userdata);
 789     pa_assert(u->card);
 790
 791     PA_IDXSET_FOREACH(sink, u->card->sinks, idx)
 792         n += pa_sink_linked_by(sink);
 793
 794     PA_IDXSET_FOREACH(source, u->card->sources, idx)
 795         n += pa_source_linked_by(source);
 796
 797     return n;
 798 }
 799
 800 void pa__done(pa_module*m) {
 801     struct userdata *u;
 802
 803     pa_assert(m);
 804
 805     if (!(u = m->userdata))
 806         goto finish;
 807
 808     if (u->sink_input_put_hook_slot)
 809         pa_hook_slot_free(u->sink_input_put_hook_slot);
 810
 811     if (u->sink_input_unlink_hook_slot)
 812         pa_hook_slot_free(u->sink_input_unlink_hook_slot);
 813
 814     if (u->source_output_put_hook_slot)
 815         pa_hook_slot_free(u->source_output_put_hook_slot);
 816
 817     if (u->source_output_unlink_hook_slot)
 818         pa_hook_slot_free(u->source_output_unlink_hook_slot);
 819
 820     if (u->mixer_fdl)
 821         pa_alsa_fdlist_free(u->mixer_fdl);
 822     if (u->mixer_handle)
 823         snd_mixer_close(u->mixer_handle);
 824     if (u->jacks)
 825         pa_hashmap_free(u->jacks);
 826
 827     if (u->card && u->card->sinks)
 828         pa_idxset_remove_all(u->card->sinks, (pa_free_cb_t) pa_alsa_sink_free);
 829
 830     if (u->card && u->card->sources)
 831         pa_idxset_remove_all(u->card->sources, (pa_free_cb_t) pa_alsa_source_free);
 832
 833     if (u->card)
 834         pa_card_free(u->card);
 835
 836     if (u->modargs)
 837         pa_modargs_free(u->modargs);
 838
 839     if (u->profile_set)
 840         pa_alsa_profile_set_free(u->profile_set);
 841
 842     pa_alsa_ucm_free(&u->ucm);
 843
 844     pa_xfree(u->device_id);
 845     pa_xfree(u);
 846
 847 finish:
 848     pa_alsa_refcnt_dec();
 849 }