add new pa_card object as a way to logically combine multiple sinks and sources

src/pulsecore/card.h

@@ -0,0 +1,91 @@
+#ifndef foopulsecardhfoo
+#define foopulsecardhfoo
+
+/***
+  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.
+***/
+
+typedef struct pa_card pa_card;
+
+#include <pulse/proplist.h>
+#include <pulsecore/core.h>
+#include <pulsecore/module.h>
+#include <pulsecore/idxset.h>
+
+typedef struct pa_card_config {
+    char *name;
+
+    pa_bool_t optical_sink:1;
+    pa_bool_t optical_source:1;
+
+    unsigned n_sinks;
+    unsigned n_sources;
+
+    unsigned max_sink_channels;
+    unsigned max_source_channels;
+} pa_card_config;
+
+struct pa_card {
+    uint32_t index;
+    pa_core *core;
+
+    char *name;
+
+    pa_proplist *proplist;
+    pa_module *module;
+    char *driver;
+
+    pa_idxset *sinks;
+    pa_idxset *sources;
+
+    pa_hashmap *configs;
+    pa_card_config *active_config;
+
+    void *userdata;
+
+    int (*set_config)(pa_card *c, pa_card_config *config);
+};
+
+typedef struct pa_card_new_data {
+    char *name;
+
+    pa_proplist *proplist;
+    const char *driver;
+    pa_module *module;
+
+    pa_hashmap *configs;
+    pa_card_config *active_config;
+
+    pa_bool_t namereg_fail:1;
+} pa_card_new_data;
+
+pa_card_config *pa_card_config_new(const char *name);
+void pa_card_config_free(pa_card_config *c);
+
+pa_card_new_data *pa_card_new_data_init(pa_card_new_data *data);
+void pa_card_new_data_set_name(pa_card_new_data *data, const char *name);
+void pa_card_new_data_done(pa_card_new_data *data);
+
+pa_card *pa_card_new(pa_core *c, pa_card_new_data *data);
+void pa_card_free(pa_card *c);
+
+int pa_card_set_config(pa_card *c, const char *name);
+
+#endif