1 files changed, 254 insertions, 0 deletions
diff --git a/src/pulsecore/card.c b/src/pulsecore/card.c
new file mode 100644
index 00000000..8e1ba536
--- /dev/null
+++ b/src/pulsecore/card.c
@@ -0,0 +1,254 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2009 Lennart Poettering
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2 of the License,
+  or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <pulse/xmalloc.h>
+#include <pulse/util.h>
+
+#include <pulsecore/log.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/namereg.h>
+
+#include "card.h"
+
+pa_card_profile *pa_card_profile_new(const char *name, const char *description, size_t extra) {
+    pa_card_profile *c;
+
+    pa_assert(name);
+
+    c = pa_xmalloc(PA_ALIGN(sizeof(pa_card_profile)) + extra);
+    c->name = pa_xstrdup(name);
+    c->description = pa_xstrdup(description);
+
+    c->priority = 0;
+    c->n_sinks = c->n_sources = 0;
+    c->max_sink_channels = c->max_source_channels = 0;
+
+    return c;
+}
+
+void pa_card_profile_free(pa_card_profile *c) {
+    pa_assert(c);
+
+    pa_xfree(c->name);
+    pa_xfree(c->description);
+    pa_xfree(c);
+}
+
+pa_card_new_data* pa_card_new_data_init(pa_card_new_data *data) {
+    pa_assert(data);
+
+    memset(data, 0, sizeof(*data));
+    data->proplist = pa_proplist_new();
+
+    return data;
+}
+
+void pa_card_new_data_set_name(pa_card_new_data *data, const char *name) {
+    pa_assert(data);
+
+    pa_xfree(data->name);
+    data->name = pa_xstrdup(name);
+}
+
+void pa_card_new_data_set_profile(pa_card_new_data *data, const char *profile) {
+    pa_assert(data);
+
+    pa_xfree(data->active_profile);
+    data->active_profile = pa_xstrdup(profile);
+}
+
+void pa_card_new_data_done(pa_card_new_data *data) {
+
+    pa_assert(data);
+
+    pa_proplist_free(data->proplist);
+
+    if (data->profiles) {
+        pa_card_profile *c;
+
+        while ((c = pa_hashmap_steal_first(data->profiles)))
+            pa_card_profile_free(c);
+
+        pa_hashmap_free(data->profiles, NULL, NULL);
+    }
+
+    pa_xfree(data->name);
+    pa_xfree(data->active_profile);
+}
+
+pa_card *pa_card_new(pa_core *core, pa_card_new_data *data) {
+    pa_card *c;
+    const char *name;
+
+    pa_core_assert_ref(core);
+    pa_assert(data);
+    pa_assert(data->name);
+
+    c = pa_xnew(pa_card, 1);
+
+    if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_CARD, c, data->namereg_fail))) {
+        pa_xfree(c);
+        return NULL;
+    }
+
+    pa_card_new_data_set_name(data, name);
+
+    if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_NEW], data) < 0) {
+        pa_xfree(c);
+        pa_namereg_unregister(core, name);
+        return NULL;
+    }
+
+    c->core = core;
+    c->name = pa_xstrdup(data->name);
+    c->proplist = pa_proplist_copy(data->proplist);
+    c->driver = pa_xstrdup(pa_path_get_filename(data->driver));
+    c->module = data->module;
+
+    c->sinks = pa_idxset_new(NULL, NULL);
+    c->sources = pa_idxset_new(NULL, NULL);
+
+    /* As a minor optimization we just steal the list instead of
+     * copying it here */
+    c->profiles = data->profiles;
+    data->profiles = NULL;
+
+    c->active_profile = NULL;
+
+    if (data->active_profile && c->profiles)
+        c->active_profile = pa_hashmap_get(c->profiles, data->active_profile);
+
+    if (!c->active_profile && c->profiles) {
+        void *state = NULL;
+        pa_card_profile *p;
+
+        while ((p = pa_hashmap_iterate(c->profiles, &state, NULL))) {
+            if (!c->active_profile ||
+                p->priority > c->active_profile->priority)
+
+                c->active_profile = p;
+        }
+    }
+
+    c->userdata = NULL;
+    c->set_profile = NULL;
+
+    pa_assert_se(pa_idxset_put(core->cards, c, &c->index) >= 0);
+
+    pa_log_info("Created %u \"%s\"", c->index, c->name);
+    pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_NEW, c->index);
+
+    pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_PUT], c);
+    return c;
+}
+
+void pa_card_free(pa_card *c) {
+    pa_core *core;
+    pa_card_profile *profile;
+
+    pa_assert(c);
+    pa_assert(c->core);
+
+    core = c->core;
+
+    pa_hook_fire(&core->hooks[PA_CORE_HOOK_CARD_UNLINK], c);
+
+    pa_namereg_unregister(core, c->name);
+
+    pa_idxset_remove_by_data(c->core->cards, c, NULL);
+
+    pa_log_info("Freed %u \"%s\"", c->index, c->name);
+
+    pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_REMOVE, c->index);
+
+    pa_assert(pa_idxset_isempty(c->sinks));
+    pa_idxset_free(c->sinks, NULL, NULL);
+    pa_assert(pa_idxset_isempty(c->sources));
+    pa_idxset_free(c->sources, NULL, NULL);
+
+    if (c->profiles) {
+        while ((profile = pa_hashmap_steal_first(c->profiles)))
+            pa_card_profile_free(profile);
+
+        pa_hashmap_free(c->profiles, NULL, NULL);
+    }
+
+    pa_proplist_free(c->proplist);
+    pa_xfree(c->driver);
+    pa_xfree(c->name);
+    pa_xfree(c);
+}
+
+int pa_card_set_profile(pa_card *c, const char *name) {
+    pa_card_profile *profile;
+    pa_assert(c);
+
+    if (!c->set_profile) {
+        pa_log_warn("set_profile() operation not implemented for card %u \"%s\"", c->index, c->name);
+        return -1;
+    }
+
+    if (!c->profiles)
+        return -1;
+
+    if (!(profile = pa_hashmap_get(c->profiles, name)))
+        return -1;
+
+    if (c->active_profile == profile)
+        return 0;
+
+    if (c->set_profile(c, profile) < 0)
+        return -1;
+
+    pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, c->index);
+
+    pa_log_info("Successfully changed profile of card %u \"%s\" to %s", c->index, c->name, profile->name);
+
+    c->active_profile = profile;
+
+    return 0;
+}
+
+int pa_card_suspend(pa_card *c, pa_bool_t suspend) {
+    pa_sink *sink;
+    pa_source *source;
+    uint32_t idx;
+    int ret = 0;
+
+    pa_assert(c);
+
+    for (sink = pa_idxset_first(c->sinks, &idx); sink; sink = pa_idxset_next(c->sinks, &idx))
+        ret -= pa_sink_suspend(sink, suspend) < 0;
+
+    for (source = pa_idxset_first(c->sources, &idx); source; source = pa_idxset_next(c->sources, &idx))
+        ret -= pa_source_suspend(source, suspend) < 0;
+
+    return ret;
+}