2 This file is part of PulseAudio.
4 Copyright 2009 Lennart Poettering
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.
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.
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
26 #include <pulse/xmalloc.h>
28 #include <pulsecore/core-util.h>
29 #include <pulsecore/i18n.h>
30 #include <pulsecore/modargs.h>
31 #include <pulsecore/queue.h>
33 #include <modules/reserve-wrap.h>
36 #include <modules/udev-util.h>
39 #include "alsa-util.h"
40 #include "alsa-sink.h"
41 #include "alsa-source.h"
42 #include "module-alsa-card-symdef.h"
44 PA_MODULE_AUTHOR("Lennart Poettering");
45 PA_MODULE_DESCRIPTION("ALSA Card");
46 PA_MODULE_VERSION(PACKAGE_VERSION
);
47 PA_MODULE_LOAD_ONCE(FALSE
);
49 "name=<name for the card/sink/source, to be prefixed> "
50 "card_name=<name for the card> "
51 "card_properties=<properties for the card> "
52 "sink_name=<name for the sink> "
53 "sink_properties=<properties for the sink> "
54 "source_name=<name for the source> "
55 "source_properties=<properties for the source> "
56 "namereg_fail=<when false attempt to synthesise new names if they are already taken> "
57 "device_id=<ALSA card index> "
58 "format=<sample format> "
60 "fragments=<number of fragments> "
61 "fragment_size=<fragment size> "
62 "mmap=<enable memory mapping?> "
63 "tsched=<enable system timer based scheduling mode?> "
64 "tsched_buffer_size=<buffer size when using timer based scheduling> "
65 "tsched_buffer_watermark=<lower fill watermark> "
66 "profile=<profile name> "
67 "fixed_latency_range=<disable latency range changes on underrun?> "
68 "ignore_dB=<ignore dB information from the device?> "
69 "deferred_volume=<Synchronize software and hardware volume changes to avoid momentary jumps?> "
70 "profile_set=<profile set configuration file> "
71 "paths_dir=<directory containing the path configuration files> "
74 static const char* const valid_modargs
[] = {
91 "tsched_buffer_watermark",
92 "fixed_latency_range",
101 #define DEFAULT_DEVICE_ID "0"
110 snd_mixer_t
*mixer_handle
;
111 snd_hctl_t
*hctl_handle
;
113 pa_alsa_fdlist
*mixer_fdl
;
119 pa_alsa_profile_set
*profile_set
;
122 struct profile_data
{
123 pa_alsa_profile
*profile
;
126 static void add_profiles(struct userdata
*u
, pa_hashmap
*h
, pa_hashmap
*ports
) {
133 PA_HASHMAP_FOREACH(ap
, u
->profile_set
->profiles
, state
) {
134 struct profile_data
*d
;
139 cp
= pa_card_profile_new(ap
->name
, ap
->description
, sizeof(struct profile_data
));
140 cp
->priority
= ap
->priority
;
142 if (ap
->output_mappings
) {
143 cp
->n_sinks
= pa_idxset_size(ap
->output_mappings
);
145 PA_IDXSET_FOREACH(m
, ap
->output_mappings
, idx
) {
146 pa_alsa_path_set_add_ports(m
->output_path_set
, cp
, ports
, NULL
, u
->core
);
147 if (m
->channel_map
.channels
> cp
->max_sink_channels
)
148 cp
->max_sink_channels
= m
->channel_map
.channels
;
152 if (ap
->input_mappings
) {
153 cp
->n_sources
= pa_idxset_size(ap
->input_mappings
);
155 PA_IDXSET_FOREACH(m
, ap
->input_mappings
, idx
) {
156 pa_alsa_path_set_add_ports(m
->input_path_set
, cp
, ports
, NULL
, u
->core
);
157 if (m
->channel_map
.channels
> cp
->max_source_channels
)
158 cp
->max_source_channels
= m
->channel_map
.channels
;
162 d
= PA_CARD_PROFILE_DATA(cp
);
165 pa_hashmap_put(h
, cp
->name
, cp
);
169 static void add_disabled_profile(pa_hashmap
*profiles
) {
171 struct profile_data
*d
;
173 p
= pa_card_profile_new("off", _("Off"), sizeof(struct profile_data
));
175 d
= PA_CARD_PROFILE_DATA(p
);
178 pa_hashmap_put(profiles
, p
->name
, p
);
181 static int card_set_profile(pa_card
*c
, pa_card_profile
*new_profile
) {
183 struct profile_data
*nd
, *od
;
186 pa_queue
*sink_inputs
= NULL
, *source_outputs
= NULL
;
189 pa_assert(new_profile
);
190 pa_assert_se(u
= c
->userdata
);
192 nd
= PA_CARD_PROFILE_DATA(new_profile
);
193 od
= PA_CARD_PROFILE_DATA(c
->active_profile
);
195 if (od
->profile
&& od
->profile
->output_mappings
)
196 PA_IDXSET_FOREACH(am
, od
->profile
->output_mappings
, idx
) {
201 nd
->profile
->output_mappings
&&
202 pa_idxset_get_by_data(nd
->profile
->output_mappings
, am
, NULL
))
205 sink_inputs
= pa_sink_move_all_start(am
->sink
, sink_inputs
);
206 pa_alsa_sink_free(am
->sink
);
210 if (od
->profile
&& od
->profile
->input_mappings
)
211 PA_IDXSET_FOREACH(am
, od
->profile
->input_mappings
, idx
) {
216 nd
->profile
->input_mappings
&&
217 pa_idxset_get_by_data(nd
->profile
->input_mappings
, am
, NULL
))
220 source_outputs
= pa_source_move_all_start(am
->source
, source_outputs
);
221 pa_alsa_source_free(am
->source
);
225 if (nd
->profile
&& nd
->profile
->output_mappings
)
226 PA_IDXSET_FOREACH(am
, nd
->profile
->output_mappings
, idx
) {
229 am
->sink
= pa_alsa_sink_new(c
->module
, u
->modargs
, __FILE__
, c
, am
);
231 if (sink_inputs
&& am
->sink
) {
232 pa_sink_move_all_finish(am
->sink
, sink_inputs
, FALSE
);
237 if (nd
->profile
&& nd
->profile
->input_mappings
)
238 PA_IDXSET_FOREACH(am
, nd
->profile
->input_mappings
, idx
) {
241 am
->source
= pa_alsa_source_new(c
->module
, u
->modargs
, __FILE__
, c
, am
);
243 if (source_outputs
&& am
->source
) {
244 pa_source_move_all_finish(am
->source
, source_outputs
, FALSE
);
245 source_outputs
= NULL
;
250 pa_sink_move_all_fail(sink_inputs
);
253 pa_source_move_all_fail(source_outputs
);
258 static void init_profile(struct userdata
*u
) {
261 struct profile_data
*d
;
265 d
= PA_CARD_PROFILE_DATA(u
->card
->active_profile
);
267 if (d
->profile
&& d
->profile
->output_mappings
)
268 PA_IDXSET_FOREACH(am
, d
->profile
->output_mappings
, idx
)
269 am
->sink
= pa_alsa_sink_new(u
->module
, u
->modargs
, __FILE__
, u
->card
, am
);
271 if (d
->profile
&& d
->profile
->input_mappings
)
272 PA_IDXSET_FOREACH(am
, d
->profile
->input_mappings
, idx
)
273 am
->source
= pa_alsa_source_new(u
->module
, u
->modargs
, __FILE__
, u
->card
, am
);
276 static void report_port_state(pa_device_port
*p
, struct userdata
*u
)
280 pa_port_available_t pa
= PA_PORT_AVAILABLE_UNKNOWN
;
282 PA_HASHMAP_FOREACH(jack
, u
->jacks
, state
) {
283 pa_port_available_t cpa
;
288 if (p
!= jack
->path
->port
)
291 cpa
= jack
->plugged_in
? jack
->state_plugged
: jack
->state_unplugged
;
293 /* "Yes" and "no" trumphs "unknown" if we have more than one jack */
294 if (cpa
== PA_PORT_AVAILABLE_UNKNOWN
)
297 if ((cpa
== PA_PORT_AVAILABLE_NO
&& pa
== PA_PORT_AVAILABLE_YES
) ||
298 (pa
== PA_PORT_AVAILABLE_NO
&& cpa
== PA_PORT_AVAILABLE_YES
))
299 pa_log_warn("Availability of port '%s' is inconsistent!", p
->name
);
304 pa_device_port_set_available(p
, pa
);
307 static int report_jack_state(snd_hctl_elem_t
*elem
, unsigned int mask
)
309 struct userdata
*u
= snd_hctl_elem_get_callback_private(elem
);
310 snd_ctl_elem_value_t
*elem_value
;
311 pa_bool_t plugged_in
;
317 if (mask
== SND_CTL_EVENT_MASK_REMOVE
)
320 snd_ctl_elem_value_alloca(&elem_value
);
321 if (snd_hctl_elem_read(elem
, elem_value
) < 0) {
322 pa_log_warn("Failed to read jack detection from '%s'", pa_strnull(snd_hctl_elem_get_name(elem
)));
326 plugged_in
= !!snd_ctl_elem_value_get_boolean(elem_value
, 0);
328 pa_log_debug("Jack '%s' is now %s", pa_strnull(snd_hctl_elem_get_name(elem
)), plugged_in
? "plugged in" : "unplugged");
330 PA_HASHMAP_FOREACH(jack
, u
->jacks
, state
)
331 if (jack
->hctl_elem
== elem
) {
332 jack
->plugged_in
= plugged_in
;
333 pa_assert(jack
->path
&& jack
->path
->port
);
334 report_port_state(jack
->path
->port
, u
);
339 static void init_jacks(struct userdata
*u
) {
344 u
->jacks
= pa_hashmap_new(pa_idxset_trivial_hash_func
, pa_idxset_trivial_compare_func
);
346 /* See if we have any jacks */
347 if (u
->profile_set
->output_paths
)
348 PA_HASHMAP_FOREACH(path
, u
->profile_set
->output_paths
, state
)
349 PA_LLIST_FOREACH(jack
, path
->jacks
)
350 if (jack
->has_control
)
351 pa_hashmap_put(u
->jacks
, jack
, jack
);
353 if (u
->profile_set
->input_paths
)
354 PA_HASHMAP_FOREACH(path
, u
->profile_set
->input_paths
, state
)
355 PA_LLIST_FOREACH(jack
, path
->jacks
)
356 if (jack
->has_control
)
357 pa_hashmap_put(u
->jacks
, jack
, jack
);
359 pa_log_debug("Found %d jacks.", pa_hashmap_size(u
->jacks
));
361 if (pa_hashmap_size(u
->jacks
) == 0)
364 u
->mixer_fdl
= pa_alsa_fdlist_new();
366 u
->mixer_handle
= pa_alsa_open_mixer(u
->alsa_card_index
, NULL
, &u
->hctl_handle
);
367 if (u
->mixer_handle
&& pa_alsa_fdlist_set_handle(u
->mixer_fdl
, NULL
, u
->hctl_handle
, u
->core
->mainloop
) >= 0) {
368 PA_HASHMAP_FOREACH(jack
, u
->jacks
, state
) {
369 jack
->hctl_elem
= pa_alsa_find_jack(u
->hctl_handle
, jack
->alsa_name
);
370 if (!jack
->hctl_elem
) {
371 pa_log_warn("Jack '%s' seems to have disappeared.", jack
->alsa_name
);
372 jack
->has_control
= FALSE
;
375 snd_hctl_elem_set_callback_private(jack
->hctl_elem
, u
);
376 snd_hctl_elem_set_callback(jack
->hctl_elem
, report_jack_state
);
377 report_jack_state(jack
->hctl_elem
, 0);
381 pa_log("Failed to open hctl/mixer for jack detection");
385 static void set_card_name(pa_card_new_data
*data
, pa_modargs
*ma
, const char *device_id
) {
391 pa_assert(device_id
);
393 if ((n
= pa_modargs_get_value(ma
, "card_name", NULL
))) {
394 pa_card_new_data_set_name(data
, n
);
395 data
->namereg_fail
= TRUE
;
399 if ((n
= pa_modargs_get_value(ma
, "name", NULL
)))
400 data
->namereg_fail
= TRUE
;
403 data
->namereg_fail
= FALSE
;
406 t
= pa_sprintf_malloc("alsa_card.%s", n
);
407 pa_card_new_data_set_name(data
, t
);
411 int pa__init(pa_module
*m
) {
412 pa_card_new_data data
;
414 pa_bool_t ignore_dB
= FALSE
;
416 pa_reserve_wrapper
*reserve
= NULL
;
417 const char *description
;
418 const char *profile
= NULL
;
420 pa_bool_t namereg_fail
= FALSE
;
422 pa_alsa_refcnt_inc();
426 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
427 pa_log("Failed to parse module arguments");
431 if (pa_modargs_get_value_boolean(ma
, "ignore_dB", &ignore_dB
) < 0) {
432 pa_log("Failed to parse ignore_dB argument.");
436 m
->userdata
= u
= pa_xnew0(struct userdata
, 1);
439 u
->device_id
= pa_xstrdup(pa_modargs_get_value(ma
, "device_id", DEFAULT_DEVICE_ID
));
442 if ((u
->alsa_card_index
= snd_card_get_index(u
->device_id
)) < 0) {
443 pa_log("Card '%s' doesn't exist: %s", u
->device_id
, pa_alsa_strerror(u
->alsa_card_index
));
447 if (!pa_in_system_mode()) {
450 if ((rname
= pa_alsa_get_reserve_name(u
->device_id
))) {
451 reserve
= pa_reserve_wrapper_get(m
->core
, rname
);
460 fn
= pa_udev_get_property(u
->alsa_card_index
, "PULSE_PROFILE_SET");
463 if (pa_modargs_get_value(ma
, "profile_set", NULL
)) {
465 fn
= pa_xstrdup(pa_modargs_get_value(ma
, "profile_set", NULL
));
468 u
->profile_set
= pa_alsa_profile_set_new(fn
, &u
->core
->default_channel_map
);
471 u
->profile_set
->ignore_dB
= ignore_dB
;
476 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
);
477 pa_alsa_profile_set_dump(u
->profile_set
);
479 pa_card_new_data_init(&data
);
480 data
.driver
= __FILE__
;
483 pa_alsa_init_proplist_card(m
->core
, data
.proplist
, u
->alsa_card_index
);
485 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_STRING
, u
->device_id
);
486 pa_alsa_init_description(data
.proplist
);
487 set_card_name(&data
, ma
, u
->device_id
);
489 /* We need to give pa_modargs_get_value_boolean() a pointer to a local
490 * variable instead of using &data.namereg_fail directly, because
491 * data.namereg_fail is a bitfield and taking the address of a bitfield
492 * variable is impossible. */
493 namereg_fail
= data
.namereg_fail
;
494 if (pa_modargs_get_value_boolean(ma
, "namereg_fail", &namereg_fail
) < 0) {
495 pa_log("Failed to parse namereg_fail argument.");
496 pa_card_new_data_done(&data
);
499 data
.namereg_fail
= namereg_fail
;
502 if ((description
= pa_proplist_gets(data
.proplist
, PA_PROP_DEVICE_DESCRIPTION
)))
503 pa_reserve_wrapper_set_application_device_name(reserve
, description
);
505 data
.profiles
= pa_hashmap_new(pa_idxset_string_hash_func
, pa_idxset_string_compare_func
);
506 add_profiles(u
, data
.profiles
, data
.ports
);
508 if (pa_hashmap_isempty(data
.profiles
)) {
509 pa_log("Failed to find a working profile.");
510 pa_card_new_data_done(&data
);
514 add_disabled_profile(data
.profiles
);
516 if (pa_modargs_get_proplist(ma
, "card_properties", data
.proplist
, PA_UPDATE_REPLACE
) < 0) {
517 pa_log("Invalid properties");
518 pa_card_new_data_done(&data
);
522 if ((profile
= pa_modargs_get_value(ma
, "profile", NULL
)))
523 pa_card_new_data_set_profile(&data
, profile
);
525 u
->card
= pa_card_new(m
->core
, &data
);
526 pa_card_new_data_done(&data
);
531 u
->card
->userdata
= u
;
532 u
->card
->set_profile
= card_set_profile
;
538 pa_reserve_wrapper_unref(reserve
);
540 if (!pa_hashmap_isempty(u
->profile_set
->decibel_fixes
))
541 pa_log_warn("Card %s uses decibel fixes (i.e. overrides the decibel information for some alsa volume elements). "
542 "Please note that this feature is meant just as a help for figuring out the correct decibel values. "
543 "Pulseaudio is not the correct place to maintain the decibel mappings! The fixed decibel values "
544 "should be sent to ALSA developers so that they can fix the driver. If it turns out that this feature "
545 "is abused (i.e. fixes are not pushed to ALSA), the decibel fix feature may be removed in some future "
546 "Pulseaudio version.", u
->card
->name
);
552 pa_reserve_wrapper_unref(reserve
);
559 int pa__get_n_used(pa_module
*m
) {
567 pa_assert_se(u
= m
->userdata
);
570 PA_IDXSET_FOREACH(sink
, u
->card
->sinks
, idx
)
571 n
+= pa_sink_linked_by(sink
);
573 PA_IDXSET_FOREACH(source
, u
->card
->sources
, idx
)
574 n
+= pa_source_linked_by(source
);
579 void pa__done(pa_module
*m
) {
584 if (!(u
= m
->userdata
))
588 pa_alsa_fdlist_free(u
->mixer_fdl
);
590 snd_mixer_close(u
->mixer_handle
);
592 pa_hashmap_free(u
->jacks
, NULL
, NULL
);
594 if (u
->card
&& u
->card
->sinks
) {
597 while ((s
= pa_idxset_steal_first(u
->card
->sinks
, NULL
)))
598 pa_alsa_sink_free(s
);
601 if (u
->card
&& u
->card
->sources
) {
604 while ((s
= pa_idxset_steal_first(u
->card
->sources
, NULL
)))
605 pa_alsa_source_free(s
);
609 pa_card_free(u
->card
);
612 pa_modargs_free(u
->modargs
);
615 pa_alsa_profile_set_free(u
->profile_set
);
617 pa_xfree(u
->device_id
);
621 pa_alsa_refcnt_dec();