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>
27 #include <pulse/i18n.h>
29 #include <pulsecore/core-util.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 "device_id=<ALSA card index> "
57 "format=<sample format> "
59 "fragments=<number of fragments> "
60 "fragment_size=<fragment size> "
61 "mmap=<enable memory mapping?> "
62 "tsched=<enable system timer based scheduling mode?> "
63 "tsched_buffer_size=<buffer size when using timer based scheduling> "
64 "tsched_buffer_watermark=<lower fill watermark> "
65 "profile=<profile name> "
66 "ignore_dB=<ignore dB information from the device?>");
68 static const char* const valid_modargs
[] = {
84 "tsched_buffer_watermark",
90 #define DEFAULT_DEVICE_ID "0"
102 pa_alsa_profile_set
*profile_set
;
105 struct profile_data
{
106 pa_alsa_profile
*profile
;
109 static void add_profiles(struct userdata
*u
, pa_hashmap
*h
) {
116 PA_HASHMAP_FOREACH(ap
, u
->profile_set
->profiles
, state
) {
117 struct profile_data
*d
;
122 cp
= pa_card_profile_new(ap
->name
, ap
->description
, sizeof(struct profile_data
));
123 cp
->priority
= ap
->priority
;
125 if (ap
->output_mappings
) {
126 cp
->n_sinks
= pa_idxset_size(ap
->output_mappings
);
128 PA_IDXSET_FOREACH(m
, ap
->output_mappings
, idx
)
129 if (m
->channel_map
.channels
> cp
->max_sink_channels
)
130 cp
->max_sink_channels
= m
->channel_map
.channels
;
133 if (ap
->input_mappings
) {
134 cp
->n_sources
= pa_idxset_size(ap
->input_mappings
);
136 PA_IDXSET_FOREACH(m
, ap
->input_mappings
, idx
)
137 if (m
->channel_map
.channels
> cp
->max_source_channels
)
138 cp
->max_source_channels
= m
->channel_map
.channels
;
141 d
= PA_CARD_PROFILE_DATA(cp
);
144 pa_hashmap_put(h
, cp
->name
, cp
);
148 static void add_disabled_profile(pa_hashmap
*profiles
) {
150 struct profile_data
*d
;
152 p
= pa_card_profile_new("off", _("Off"), sizeof(struct profile_data
));
154 d
= PA_CARD_PROFILE_DATA(p
);
157 pa_hashmap_put(profiles
, p
->name
, p
);
160 static int card_set_profile(pa_card
*c
, pa_card_profile
*new_profile
) {
162 struct profile_data
*nd
, *od
;
165 pa_queue
*sink_inputs
= NULL
, *source_outputs
= NULL
;
168 pa_assert(new_profile
);
169 pa_assert_se(u
= c
->userdata
);
171 nd
= PA_CARD_PROFILE_DATA(new_profile
);
172 od
= PA_CARD_PROFILE_DATA(c
->active_profile
);
174 if (od
->profile
&& od
->profile
->output_mappings
)
175 PA_IDXSET_FOREACH(am
, od
->profile
->output_mappings
, idx
) {
180 nd
->profile
->output_mappings
&&
181 pa_idxset_get_by_data(nd
->profile
->output_mappings
, am
, NULL
))
184 sink_inputs
= pa_sink_move_all_start(am
->sink
, sink_inputs
);
185 pa_alsa_sink_free(am
->sink
);
189 if (od
->profile
&& od
->profile
->input_mappings
)
190 PA_IDXSET_FOREACH(am
, od
->profile
->input_mappings
, idx
) {
195 nd
->profile
->input_mappings
&&
196 pa_idxset_get_by_data(nd
->profile
->input_mappings
, am
, NULL
))
199 source_outputs
= pa_source_move_all_start(am
->source
, source_outputs
);
200 pa_alsa_source_free(am
->source
);
204 if (nd
->profile
&& nd
->profile
->output_mappings
)
205 PA_IDXSET_FOREACH(am
, nd
->profile
->output_mappings
, idx
) {
208 am
->sink
= pa_alsa_sink_new(c
->module
, u
->modargs
, __FILE__
, c
, am
);
210 if (sink_inputs
&& am
->sink
) {
211 pa_sink_move_all_finish(am
->sink
, sink_inputs
, FALSE
);
216 if (nd
->profile
&& nd
->profile
->input_mappings
)
217 PA_IDXSET_FOREACH(am
, nd
->profile
->input_mappings
, idx
) {
220 am
->source
= pa_alsa_source_new(c
->module
, u
->modargs
, __FILE__
, c
, am
);
222 if (source_outputs
&& am
->source
) {
223 pa_source_move_all_finish(am
->source
, source_outputs
, FALSE
);
224 source_outputs
= NULL
;
229 pa_sink_move_all_fail(sink_inputs
);
232 pa_source_move_all_fail(source_outputs
);
237 static void init_profile(struct userdata
*u
) {
240 struct profile_data
*d
;
244 d
= PA_CARD_PROFILE_DATA(u
->card
->active_profile
);
246 if (d
->profile
&& d
->profile
->output_mappings
)
247 PA_IDXSET_FOREACH(am
, d
->profile
->output_mappings
, idx
)
248 am
->sink
= pa_alsa_sink_new(u
->module
, u
->modargs
, __FILE__
, u
->card
, am
);
250 if (d
->profile
&& d
->profile
->input_mappings
)
251 PA_IDXSET_FOREACH(am
, d
->profile
->input_mappings
, idx
)
252 am
->source
= pa_alsa_source_new(u
->module
, u
->modargs
, __FILE__
, u
->card
, am
);
255 static void set_card_name(pa_card_new_data
*data
, pa_modargs
*ma
, const char *device_id
) {
261 pa_assert(device_id
);
263 if ((n
= pa_modargs_get_value(ma
, "card_name", NULL
))) {
264 pa_card_new_data_set_name(data
, n
);
265 data
->namereg_fail
= TRUE
;
269 if ((n
= pa_modargs_get_value(ma
, "name", NULL
)))
270 data
->namereg_fail
= TRUE
;
273 data
->namereg_fail
= FALSE
;
276 t
= pa_sprintf_malloc("alsa_card.%s", n
);
277 pa_card_new_data_set_name(data
, t
);
281 int pa__init(pa_module
*m
) {
282 pa_card_new_data data
;
286 pa_reserve_wrapper
*reserve
= NULL
;
287 const char *description
;
290 pa_alsa_refcnt_inc();
294 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
295 pa_log("Failed to parse module arguments");
299 m
->userdata
= u
= pa_xnew0(struct userdata
, 1);
302 u
->device_id
= pa_xstrdup(pa_modargs_get_value(ma
, "device_id", DEFAULT_DEVICE_ID
));
305 if ((alsa_card_index
= snd_card_get_index(u
->device_id
)) < 0) {
306 pa_log("Card '%s' doesn't exist: %s", u
->device_id
, pa_alsa_strerror(alsa_card_index
));
310 if (!pa_in_system_mode()) {
313 if ((rname
= pa_alsa_get_reserve_name(u
->device_id
))) {
314 reserve
= pa_reserve_wrapper_get(m
->core
, rname
);
323 fn
= pa_udev_get_property(alsa_card_index
, "PULSE_PROFILE_SET");
326 u
->profile_set
= pa_alsa_profile_set_new(fn
, &u
->core
->default_channel_map
);
332 pa_alsa_profile_set_probe(u
->profile_set
, u
->device_id
, &m
->core
->default_sample_spec
);
334 pa_card_new_data_init(&data
);
335 data
.driver
= __FILE__
;
338 pa_alsa_init_proplist_card(m
->core
, data
.proplist
, alsa_card_index
);
340 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_STRING
, u
->device_id
);
341 pa_alsa_init_description(data
.proplist
);
342 set_card_name(&data
, ma
, u
->device_id
);
345 if ((description
= pa_proplist_gets(data
.proplist
, PA_PROP_DEVICE_DESCRIPTION
)))
346 pa_reserve_wrapper_set_application_device_name(reserve
, description
);
348 data
.profiles
= pa_hashmap_new(pa_idxset_string_hash_func
, pa_idxset_string_compare_func
);
349 add_profiles(u
, data
.profiles
);
351 if (pa_hashmap_isempty(data
.profiles
)) {
352 pa_log("Failed to find a working profile.");
353 pa_card_new_data_done(&data
);
357 add_disabled_profile(data
.profiles
);
359 if (pa_modargs_get_proplist(ma
, "card_properties", data
.proplist
, PA_UPDATE_REPLACE
) < 0) {
360 pa_log("Invalid properties");
361 pa_card_new_data_done(&data
);
365 u
->card
= pa_card_new(m
->core
, &data
);
366 pa_card_new_data_done(&data
);
371 u
->card
->userdata
= u
;
372 u
->card
->set_profile
= card_set_profile
;
377 pa_reserve_wrapper_unref(reserve
);
383 pa_reserve_wrapper_unref(reserve
);
390 int pa__get_n_used(pa_module
*m
) {
398 pa_assert_se(u
= m
->userdata
);
401 PA_IDXSET_FOREACH(sink
, u
->card
->sinks
, idx
)
402 n
+= pa_sink_linked_by(sink
);
404 PA_IDXSET_FOREACH(source
, u
->card
->sources
, idx
)
405 n
+= pa_source_linked_by(source
);
410 void pa__done(pa_module
*m
) {
415 if (!(u
= m
->userdata
))
418 if (u
->card
&& u
->card
->sinks
) {
421 while ((s
= pa_idxset_steal_first(u
->card
->sinks
, NULL
)))
422 pa_alsa_sink_free(s
);
425 if (u
->card
&& u
->card
->sources
) {
428 while ((s
= pa_idxset_steal_first(u
->card
->sources
, NULL
)))
429 pa_alsa_source_free(s
);
433 pa_card_free(u
->card
);
436 pa_modargs_free(u
->modargs
);
439 pa_alsa_profile_set_free(u
->profile_set
);
441 pa_xfree(u
->device_id
);
445 pa_alsa_refcnt_dec();