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/*
* module-agl-audio -- PulseAudio module for providing audio routing support
* (forked from "module-murphy-ivi" - https://github.com/otcshare )
* Copyright (c) 2012, Intel Corporation.
* Copyright (c) 2016, IoT.bzh
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU Lesser General Public License,
* version 2.1, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St - Fifth Floor, Boston,
* MA 02110-1301 USA.
*
*/
#include "router.h"
#include "switch.h"
#include "utils.h"
pa_router *pa_router_init (struct userdata *u)
{
pa_router *router;
size_t num_classes;
num_classes = agl_application_class_end;
router = pa_xnew0 (pa_router, 1);
router->rtgroups.input = pa_hashmap_new (pa_idxset_string_hash_func,
pa_idxset_string_compare_func);
router->rtgroups.output = pa_hashmap_new (pa_idxset_string_hash_func,
pa_idxset_string_compare_func);
router->maplen = num_classes;
router->priormap = pa_xnew0 (int, num_classes);
AGL_DLIST_INIT (router->nodlist);
AGL_DLIST_INIT (router->connlist);
return router;
}
void pa_router_done (struct userdata *u)
{
pa_router *router;
agl_node *e,*n;
agl_connection *conn, *c;
agl_rtgroup *rtg;
agl_rtgroup **map;
int i;
if (u && (router = u->router)) {
AGL_DLIST_FOR_EACH_SAFE(agl_node, rtprilist, e,n, &router->nodlist)
AGL_DLIST_UNLINK(agl_node, rtprilist, e);
AGL_DLIST_FOR_EACH_SAFE(agl_connection, link, conn,c, &router->connlist) {
AGL_DLIST_UNLINK(agl_connection, link, conn);
pa_xfree (conn);
}
/*
PA_HASHMAP_FOREACH(rtg, router->rtgroups.input, state) {
rtgroup_destroy(u, rtg);
}
PA_HASHMAP_FOREACH(rtg, router->rtgroups.output, state) {
rtgroup_destroy(u, rtg);
}*/
pa_hashmap_free (router->rtgroups.input);
pa_hashmap_free (router->rtgroups.output);
for (i = 0; i < AGL_ZONE_MAX; i++) {
if ((map = router->classmap.input[i]))
pa_xfree(map);
if ((map = router->classmap.output[i]))
pa_xfree(map);
}
pa_xfree (router->priormap);
pa_xfree (router);
u->router = NULL;
}
}
void agl_router_register_node (struct userdata *u, agl_node *node)
{
pa_assert (u);
pa_assert (node);
implement_default_route (u, node, NULL, pa_utils_new_stamp ());
}
void agl_router_unregister_node (struct userdata *u, agl_node *node)
{
pa_assert (u);
pa_assert (node);
remove_routes (u, node, NULL, pa_utils_new_stamp ());
}
agl_node *agl_router_make_prerouting (struct userdata *u, agl_node *data)
{
pa_router *router;
int priority;
static bool done_prerouting;
uint32_t stamp;
agl_node *start, *end;
agl_node *target;
pa_assert (u);
pa_assert_se (router = u->router);
pa_assert_se (data->implement == agl_stream);
//priority = node_priority (u, data);
done_prerouting = false;
target = NULL;
stamp = pa_utils_new_stamp ();
//make_explicit_routes (u, stamp);
//pa_audiomgr_delete_default_routes(u);
AGL_DLIST_FOR_EACH_BACKWARDS(agl_node, rtprilist, start, &router->nodlist) {
//if ((start->implement == agl_device) &&
// (!start->loop)) /* only manage looped real devices */
// continue;
/*if (priority >= node_priority (u, start)) {
target = find_default_route (u, data, stamp);
if (target)
implement_preroute (u, data, target, stamp);
else
done_prerouting = true;
}*/
if (start->stamp >= stamp)
continue;
//end = find_default_route (u, start, stamp);
//if (end)
// implement_default_route(u, start, end, stamp);
}
if (!done_prerouting) {
pa_log_debug ("Prerouting failed, trying to find default route as last resort");
//target = find_default_route (u, data, stamp);
//if (target)
// implement_preroute (u, data, target, stamp);
}
return target;
}
void agl_router_make_routing (struct userdata *u)
{
pa_router *router;
static bool ongoing_routing; /* true while we are actively routing */
uint32_t stamp;
agl_node *start, *end;
pa_assert (u);
pa_assert_se (router = u->router);
if (ongoing_routing) /* already routing, canceling */
return;
ongoing_routing = true;
stamp = pa_utils_new_stamp ();
pa_log_debug("stamp for routing: %d", stamp);
// make_explicit_routes (u, stamp);
// pa_audiomgr_delete_default_routes (u);
AGL_DLIST_FOR_EACH_BACKWARDS(agl_node, rtprilist, start, &router->nodlist) {
//if ((start->implement == agl_device) &&
// (!start->loop)) /* only manage looped real devices */
// continue;
if (start->stamp >= stamp)
continue;
end = find_default_route (u, start, stamp);
if (end)
implement_default_route (u, start, end, stamp);
}
// pa_audiomgr_send_default_routes (u);
ongoing_routing = false;
}
void implement_default_route (struct userdata *u,
agl_node *start, agl_node *end,
uint32_t stamp)
{
if (start->direction == agl_input) {
agl_switch_setup_link (u, start, end, false);
//agl_volume_add_limiting_class(u, end, volume_class(start), stamp);
} else {
agl_switch_setup_link (u, end, start, false);
}
}
agl_node *find_default_route (struct userdata *u, agl_node *start, uint32_t stamp)
{
/* TODO */
return NULL;
}
void remove_routes (struct userdata *u, agl_node *start, agl_node *end, uint32_t stamp)
{
if (start->direction == agl_input) {
agl_switch_teardown_link (u, start, end);
} else {
agl_switch_teardown_link (u, end, start);
}
}
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