1 /*
2 * Copyright (c) 2019 Foundries.io
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #define LOG_MODULE_NAME net_lwm2m_obj_location
8 #define LOG_LEVEL CONFIG_LWM2M_LOG_LEVEL
9
10 #include <zephyr/logging/log.h>
11 LOG_MODULE_REGISTER(LOG_MODULE_NAME);
12
13 #include <stdint.h>
14 #include <zephyr/init.h>
15
16 #include "lwm2m_object.h"
17 #include "lwm2m_engine.h"
18
19 #define LOCATION_VERSION_MAJOR 1
20 #define LOCATION_VERSION_MINOR 0
21
22 /* resource IDs */
23 #define LOCATION_LATITUDE_ID 0
24 #define LOCATION_LONGITUDE_ID 1
25 #define LOCATION_ALTITUDE_ID 2
26 #define LOCATION_RADIUS_ID 3
27 #define LOCATION_VELOCITY_ID 4
28 #define LOCATION_TIMESTAMP_ID 5
29 #define LOCATION_SPEED_ID 6
30
31 #define LOCATION_MAX_ID 7
32
33 /*
34 * Calculate resource instances as follows:
35 * start with LOCATION_MAX_ID
36 */
37 #define RESOURCE_INSTANCE_COUNT (LOCATION_MAX_ID)
38
39 /* resource state */
40 static double latitude;
41 static double longitude;
42 static double altitude;
43 static double radius;
44 static double speed;
45 static time_t timestamp;
46
47 static struct lwm2m_engine_obj location;
48 static struct lwm2m_engine_obj_field fields[] = {
49 OBJ_FIELD_DATA(LOCATION_LATITUDE_ID, R, FLOAT),
50 OBJ_FIELD_DATA(LOCATION_LONGITUDE_ID, R, FLOAT),
51 OBJ_FIELD_DATA(LOCATION_ALTITUDE_ID, R_OPT, FLOAT),
52 OBJ_FIELD_DATA(LOCATION_RADIUS_ID, R_OPT, FLOAT),
53 OBJ_FIELD_DATA(LOCATION_VELOCITY_ID, R_OPT, OPAQUE),
54 OBJ_FIELD_DATA(LOCATION_TIMESTAMP_ID, R, TIME),
55 OBJ_FIELD_DATA(LOCATION_SPEED_ID, R_OPT, FLOAT),
56 };
57
58 static struct lwm2m_engine_obj_inst inst;
59 static struct lwm2m_engine_res res[LOCATION_MAX_ID];
60 static struct lwm2m_engine_res_inst res_inst[RESOURCE_INSTANCE_COUNT];
61
location_create(uint16_t obj_inst_id)62 static struct lwm2m_engine_obj_inst *location_create(uint16_t obj_inst_id)
63 {
64 int i = 0, j = 0;
65
66 if (inst.resource_count) {
67 LOG_ERR("Only 1 instance of Location object can exist.");
68 return NULL;
69 }
70
71 init_res_instance(res_inst, ARRAY_SIZE(res_inst));
72
73 /* initialize instance resource data */
74 INIT_OBJ_RES_DATA(LOCATION_LATITUDE_ID, res, i, res_inst, j,
75 &latitude, sizeof(latitude));
76 INIT_OBJ_RES_DATA(LOCATION_LONGITUDE_ID, res, i, res_inst, j,
77 &longitude, sizeof(longitude));
78 INIT_OBJ_RES_DATA(LOCATION_ALTITUDE_ID, res, i, res_inst, j,
79 &altitude, sizeof(altitude));
80 INIT_OBJ_RES_DATA(LOCATION_RADIUS_ID, res, i, res_inst, j,
81 &radius, sizeof(radius));
82 INIT_OBJ_RES_OPTDATA(LOCATION_VELOCITY_ID, res, i, res_inst, j);
83 INIT_OBJ_RES_DATA(LOCATION_TIMESTAMP_ID, res, i, res_inst, j,
84 ×tamp, sizeof(timestamp));
85 INIT_OBJ_RES_DATA(LOCATION_SPEED_ID, res, i, res_inst, j,
86 &speed, sizeof(speed));
87
88 inst.resources = res;
89 inst.resource_count = i;
90
91 LOG_DBG("Create Location instance: %d", obj_inst_id);
92
93 return &inst;
94 }
95
ipso_location_init(void)96 static int ipso_location_init(void)
97 {
98 int ret;
99 struct lwm2m_engine_obj_inst *obj_inst = NULL;
100
101 location.obj_id = LWM2M_OBJECT_LOCATION_ID;
102 location.version_major = LOCATION_VERSION_MAJOR;
103 location.version_minor = LOCATION_VERSION_MINOR;
104 location.is_core = true;
105 location.fields = fields;
106 location.field_count = ARRAY_SIZE(fields);
107 location.max_instance_count = 1U;
108 location.create_cb = location_create;
109 lwm2m_register_obj(&location);
110
111 /* auto create the only instance */
112 ret = lwm2m_create_obj_inst(LWM2M_OBJECT_LOCATION_ID, 0, &obj_inst);
113 if (ret < 0) {
114 LOG_DBG("Create LWM2M instance 0 error: %d", ret);
115 }
116
117 return ret;
118 }
119
120 LWM2M_CORE_INIT(ipso_location_init);
121
