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>
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 (!pa_in_system_mode())
314 if (!(reserve = pa_reserve_wrapper_get(m->core, rname)))
317 pa_card_new_data_init(&data);
318 data.driver = __FILE__;
320 pa_alsa_init_proplist_card(m->core, data.proplist, alsa_card_index);
321 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->device_id);
322 pa_alsa_init_description(data.proplist);
323 set_card_name(&data, ma, u->device_id);
326 if ((description = pa_proplist_gets(data.proplist, PA_PROP_DEVICE_DESCRIPTION)))
327 pa_reserve_wrapper_set_application_device_name(reserve, description);
329 u->profiles = data.profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
330 if (pa_alsa_probe_profiles(u->device_id, &m->core->default_sample_spec, enumerate_cb, u) < 0) {
331 pa_card_new_data_done(&data);
335 if (pa_hashmap_isempty(data.profiles)) {
336 pa_log("Failed to find a working profile.");
337 pa_card_new_data_done(&data);
341 add_disabled_profile(data.profiles);
343 u->card = pa_card_new(m->core, &data);
344 pa_card_new_data_done(&data);
349 u->card->userdata = u;
350 u->card->set_profile = card_set_profile;
354 pa_reserve_wrapper_unref(reserve);
360 pa_reserve_wrapper_unref(reserve);
367 int pa__get_n_used(pa_module *m) {
371 pa_assert_se(u = m->userdata);
374 (u->sink ? pa_sink_linked_by(u->sink) : 0) +
375 (u->source ? pa_source_linked_by(u->source) : 0);
378 void pa__done(pa_module*m) {
383 if (!(u = m->userdata))
387 pa_alsa_sink_free(u->sink);
390 pa_alsa_source_free(u->source);
393 pa_card_free(u->card);
396 pa_modargs_free(u->modargs);
398 pa_xfree(u->device_id);
402 snd_config_update_free_global();
403 pa_alsa_redirect_errors_dec();