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 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>
35 #include "alsa-util.h"
36 #include "alsa-sink.h"
37 #include "alsa-source.h"
38 #include "module-alsa-card-symdef.h"
40 PA_MODULE_AUTHOR("Lennart Poettering");
41 PA_MODULE_DESCRIPTION("ALSA Card");
42 PA_MODULE_VERSION(PACKAGE_VERSION
);
43 PA_MODULE_LOAD_ONCE(FALSE
);
45 "name=<name for the card/sink/source, to be prefixed> "
46 "card_name=<name for card> "
47 "sink_name=<name for sink> "
48 "source_name=<name for source> "
49 "device_id=<ALSA card index> "
50 "format=<sample format> "
52 "fragments=<number of fragments> "
53 "fragment_size=<fragment size> "
54 "mmap=<enable memory mapping?> "
55 "tsched=<enable system timer based scheduling mode?> "
56 "tsched_buffer_size=<buffer size when using timer based scheduling> "
57 "tsched_buffer_watermark=<lower fill watermark> "
58 "profile=<profile name> "
59 "ignore_dB=<ignore dB information from the device?>");
61 static const char* const valid_modargs
[] = {
74 "tsched_buffer_watermark",
80 #define DEFAULT_DEVICE_ID "0"
98 const pa_alsa_profile_info
*sink_profile
, *source_profile
;
101 static void enumerate_cb(
102 const pa_alsa_profile_info
*sink
,
103 const pa_alsa_profile_info
*source
,
106 struct userdata
*u
= userdata
;
109 struct profile_data
*d
;
112 if (sink
&& source
) {
113 n
= pa_sprintf_malloc("output-%s+input-%s", sink
->name
, source
->name
);
114 t
= pa_sprintf_malloc(_("Output %s + Input %s"), sink
->description
, _(source
->description
));
116 n
= pa_sprintf_malloc("output-%s", sink
->name
);
117 t
= pa_sprintf_malloc(_("Output %s"), _(sink
->description
));
120 n
= pa_sprintf_malloc("input-%s", source
->name
);
121 t
= pa_sprintf_malloc(_("Input %s"), _(source
->description
));
125 if (pa_channel_map_equal(&sink
->map
, &u
->core
->default_channel_map
))
127 else if (sink
->map
.channels
== u
->core
->default_channel_map
.channels
)
132 if (pa_channel_map_equal(&source
->map
, &u
->core
->default_channel_map
))
134 else if (source
->map
.channels
== u
->core
->default_channel_map
.channels
)
138 pa_log_info("Found output profile '%s'", t
);
140 p
= pa_card_profile_new(n
, t
, sizeof(struct profile_data
));
146 (sink
? sink
->priority
: 0) * 100 +
147 (source
? source
->priority
: 0) +
151 p
->n_sources
= !!source
;
154 p
->max_sink_channels
= sink
->map
.channels
;
156 p
->max_source_channels
= source
->map
.channels
;
158 d
= PA_CARD_PROFILE_DATA(p
);
160 d
->sink_profile
= sink
;
161 d
->source_profile
= source
;
163 pa_hashmap_put(u
->profiles
, p
->name
, p
);
166 static void add_disabled_profile(pa_hashmap
*profiles
) {
168 struct profile_data
*d
;
170 p
= pa_card_profile_new("off", _("Off"), sizeof(struct profile_data
));
172 d
= PA_CARD_PROFILE_DATA(p
);
173 d
->sink_profile
= d
->source_profile
= NULL
;
175 pa_hashmap_put(profiles
, p
->name
, p
);
178 static int card_set_profile(pa_card
*c
, pa_card_profile
*new_profile
) {
180 struct profile_data
*nd
, *od
;
183 pa_assert(new_profile
);
184 pa_assert_se(u
= c
->userdata
);
186 nd
= PA_CARD_PROFILE_DATA(new_profile
);
187 od
= PA_CARD_PROFILE_DATA(c
->active_profile
);
189 if (od
->sink_profile
!= nd
->sink_profile
) {
190 pa_queue
*inputs
= NULL
;
193 if (nd
->sink_profile
)
194 inputs
= pa_sink_move_all_start(u
->sink
);
196 pa_alsa_sink_free(u
->sink
);
200 if (nd
->sink_profile
) {
201 u
->sink
= pa_alsa_sink_new(c
->module
, u
->modargs
, __FILE__
, c
, nd
->sink_profile
);
205 pa_sink_move_all_finish(u
->sink
, inputs
, FALSE
);
207 pa_sink_move_all_fail(inputs
);
212 if (od
->source_profile
!= nd
->source_profile
) {
213 pa_queue
*outputs
= NULL
;
216 if (nd
->source_profile
)
217 outputs
= pa_source_move_all_start(u
->source
);
219 pa_alsa_source_free(u
->source
);
223 if (nd
->source_profile
) {
224 u
->source
= pa_alsa_source_new(c
->module
, u
->modargs
, __FILE__
, c
, nd
->source_profile
);
228 pa_source_move_all_finish(u
->source
, outputs
, FALSE
);
230 pa_source_move_all_fail(outputs
);
238 static void init_profile(struct userdata
*u
) {
239 struct profile_data
*d
;
243 d
= PA_CARD_PROFILE_DATA(u
->card
->active_profile
);
246 u
->sink
= pa_alsa_sink_new(u
->module
, u
->modargs
, __FILE__
, u
->card
, d
->sink_profile
);
248 if (d
->source_profile
)
249 u
->source
= pa_alsa_source_new(u
->module
, u
->modargs
, __FILE__
, u
->card
, d
->source_profile
);
252 static void set_card_name(pa_card_new_data
*data
, pa_modargs
*ma
, const char *device_id
) {
258 pa_assert(device_id
);
260 if ((n
= pa_modargs_get_value(ma
, "card_name", NULL
))) {
261 pa_card_new_data_set_name(data
, n
);
262 data
->namereg_fail
= TRUE
;
266 if ((n
= pa_modargs_get_value(ma
, "name", NULL
)))
267 data
->namereg_fail
= TRUE
;
270 data
->namereg_fail
= FALSE
;
273 t
= pa_sprintf_malloc("alsa_card.%s", n
);
274 pa_card_new_data_set_name(data
, t
);
278 int pa__init(pa_module
*m
) {
279 pa_card_new_data data
;
284 pa_reserve_wrapper
*reserve
= NULL
;
285 const char *description
;
287 pa_alsa_redirect_errors_inc();
288 snd_config_update_free_global();
292 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
293 pa_log("Failed to parse module arguments");
297 m
->userdata
= u
= pa_xnew(struct userdata
, 1);
300 u
->device_id
= pa_xstrdup(pa_modargs_get_value(ma
, "device_id", DEFAULT_DEVICE_ID
));
306 if ((alsa_card_index
= snd_card_get_index(u
->device_id
)) < 0) {
307 pa_log("Card '%s' doesn't exist: %s", u
->device_id
, snd_strerror(alsa_card_index
));
311 pa_snprintf(rname
, sizeof(rname
), "Audio%i", alsa_card_index
);
313 if (!(reserve
= pa_reserve_wrapper_get(m
->core
, rname
)))
316 pa_card_new_data_init(&data
);
317 data
.driver
= __FILE__
;
319 pa_alsa_init_proplist_card(m
->core
, data
.proplist
, alsa_card_index
);
320 pa_proplist_sets(data
.proplist
, PA_PROP_DEVICE_STRING
, u
->device_id
);
321 pa_alsa_init_description(data
.proplist
);
322 set_card_name(&data
, ma
, u
->device_id
);
325 if ((description
= pa_proplist_gets(data
.proplist
, PA_PROP_DEVICE_DESCRIPTION
)))
326 pa_reserve_wrapper_set_application_device_name(reserve
, description
);
328 u
->profiles
= data
.profiles
= pa_hashmap_new(pa_idxset_string_hash_func
, pa_idxset_string_compare_func
);
329 if (pa_alsa_probe_profiles(u
->device_id
, &m
->core
->default_sample_spec
, enumerate_cb
, u
) < 0) {
330 pa_card_new_data_done(&data
);
334 if (pa_hashmap_isempty(data
.profiles
)) {
335 pa_log("Failed to find a working profile.");
336 pa_card_new_data_done(&data
);
340 add_disabled_profile(data
.profiles
);
342 u
->card
= pa_card_new(m
->core
, &data
);
343 pa_card_new_data_done(&data
);
348 u
->card
->userdata
= u
;
349 u
->card
->set_profile
= card_set_profile
;
353 pa_reserve_wrapper_unref(reserve
);
359 pa_reserve_wrapper_unref(reserve
);
366 int pa__get_n_used(pa_module
*m
) {
370 pa_assert_se(u
= m
->userdata
);
373 (u
->sink
? pa_sink_linked_by(u
->sink
) : 0) +
374 (u
->source
? pa_source_linked_by(u
->source
) : 0);
377 void pa__done(pa_module
*m
) {
382 if (!(u
= m
->userdata
))
386 pa_alsa_sink_free(u
->sink
);
389 pa_alsa_source_free(u
->source
);
392 pa_card_free(u
->card
);
395 pa_modargs_free(u
->modargs
);
397 pa_xfree(u
->device_id
);
401 snd_config_update_free_global();
402 pa_alsa_redirect_errors_dec();