xref: /btstack/src/mesh/mesh_node.c (revision e4058622b0e357c42ce3d19261c7b63753454c95)
1 /*
2  * Copyright (C) 2019 BlueKitchen GmbH
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the copyright holders nor the names of
14  *    contributors may be used to endorse or promote products derived
15  *    from this software without specific prior written permission.
16  * 4. Any redistribution, use, or modification is done solely for
17  *    personal benefit and not for any commercial purpose or for
18  *    monetary gain.
19  *
20  * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
24  * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * Please inquire about commercial licensing options at
34  * [email protected]
35  *
36  */
37 
38 #define __BTSTACK_FILE__ "mesh_node.c"
39 
40 #include <stddef.h>
41 
42 #include "mesh/mesh_node.h"
43 
44 static uint16_t primary_element_address;
45 
46 static mesh_element_t primary_element;
47 
48 static uint16_t mesh_element_index_next;
49 
50 static btstack_linked_list_t mesh_elements;
51 
52 void mesh_node_primary_element_address_set(uint16_t unicast_address){
53     primary_element_address = unicast_address;
54 }
55 
56 uint16_t mesh_node_primary_element_address_get(void){
57     return primary_element_address;
58 }
59 
60 void mesh_node_init(void){
61     // dd Primary Element to list of elements
62     mesh_element_add(&primary_element);
63 }
64 
65 void mesh_element_add(mesh_element_t * element){
66     element->element_index = mesh_element_index_next++;
67     btstack_linked_list_add_tail(&mesh_elements, (void*) element);
68 }
69 
70 uint16_t mesh_element_count(void){
71 	return (uint16_t) btstack_linked_list_count(&mesh_elements);
72 }
73 
74 mesh_element_t * mesh_primary_element(void){
75     return &primary_element;
76 }
77 
78 void mesh_access_set_primary_element_location(uint16_t location){
79     primary_element.loc = location;
80 }
81 
82 mesh_element_t * mesh_element_for_index(uint16_t element_index){
83     btstack_linked_list_iterator_t it;
84     btstack_linked_list_iterator_init(&it, &mesh_elements);
85     while (btstack_linked_list_iterator_has_next(&it)){
86         mesh_element_t * element = (mesh_element_t *) btstack_linked_list_iterator_next(&it);
87         if (element->element_index != element_index) continue;
88         return element;
89     }
90     return NULL;
91 }
92 
93 mesh_element_t * mesh_element_for_unicast_address(uint16_t unicast_address){
94     uint16_t element_index = unicast_address - mesh_node_primary_element_address_get();
95     return mesh_element_for_index(element_index);
96 }
97 
98 void mesh_element_iterator_init(mesh_element_iterator_t * iterator){
99     btstack_linked_list_iterator_init(&iterator->it, &mesh_elements);
100 }
101 
102 int mesh_element_iterator_has_next(mesh_element_iterator_t * iterator){
103     return btstack_linked_list_iterator_has_next(&iterator->it);
104 }
105 
106 mesh_element_t * mesh_element_iterator_next(mesh_element_iterator_t * iterator){
107     return (mesh_element_t *) btstack_linked_list_iterator_next(&iterator->it);
108 }
109