1 /**
2 * @file lwm2m_obj_binaryappdata.c
3 * @brief
4 *
5 * Copyright (c) 2022 Kickmaker
6 *
7 * SPDX-License-Identifier: Apache-2.0
8 */
9
10 /*
11 * BinaryAppDataContainer
12 * https://raw.githubusercontent.com/OpenMobileAlliance/lwm2m-registry/prod/19.xml
13 */
14
15 #define LOG_MODULE_NAME net_lwm2m_binaryappdata
16 #define LOG_LEVEL CONFIG_LWM2M_LOG_LEVEL
17
18 #include <zephyr/logging/log.h>
19 LOG_MODULE_REGISTER(LOG_MODULE_NAME);
20
21 #include <string.h>
22 #include <zephyr/init.h>
23
24 #include "lwm2m_object.h"
25 #include "lwm2m_engine.h"
26 #include "lwm2m_obj_binaryappdata.h"
27
28 #define BINARYAPPDATA_VERSION_MAJOR 1
29 #define BINARYAPPDATA_VERSION_MINOR 0
30 #define BINARYAPPDATA_MAX_ID 6
31
32 #define MAX_INSTANCE_COUNT CONFIG_LWM2M_BINARYAPPDATA_INSTANCE_COUNT
33 #define BINARYAPPDATA_DATA_INSTANCE_MAX CONFIG_LWM2M_BINARYAPPDATA_DATA_INSTANCE_COUNT
34
35 /*
36 * Calculate resource instances as follows:
37 * start with BINARYAPPDATA_MAX_ID
38 * subtract EXEC resources (0)
39 * add BINARYAPPDATA_DATA_INSTANCE_MAX resource instances
40 */
41 #define RESOURCE_INSTANCE_COUNT (BINARYAPPDATA_MAX_ID - (0) + BINARYAPPDATA_DATA_INSTANCE_MAX)
42
43 static struct lwm2m_engine_obj lwm2m_binaryappdata;
44 static struct lwm2m_engine_obj_field fields[] = {
45 OBJ_FIELD_DATA(LWM2M_BINARYAPPDATA_DATA_ID, RW, OPAQUE),
46 OBJ_FIELD_DATA(LWM2M_BINARYAPPDATA_DATA_PRIORITY_ID, RW_OPT, U8),
47 OBJ_FIELD_DATA(LWM2M_BINARYAPPDATA_DATA_CREATION_TIME_ID, RW_OPT, TIME),
48 OBJ_FIELD_DATA(LWM2M_BINARYAPPDATA_DATA_DESCRIPTION_ID, RW_OPT, STRING),
49 OBJ_FIELD_DATA(LWM2M_BINARYAPPDATA_DATA_FORMAT_ID, RW_OPT, STRING),
50 OBJ_FIELD_DATA(LWM2M_BINARYAPPDATA_APP_ID, RW_OPT, U16),
51 };
52
53 static struct lwm2m_engine_obj_inst inst[MAX_INSTANCE_COUNT];
54 static struct lwm2m_engine_res res[MAX_INSTANCE_COUNT][BINARYAPPDATA_MAX_ID];
55 static struct lwm2m_engine_res_inst res_inst[MAX_INSTANCE_COUNT][RESOURCE_INSTANCE_COUNT];
56
lwm2m_binaryappdata_create(uint16_t obj_inst_id)57 static struct lwm2m_engine_obj_inst *lwm2m_binaryappdata_create(uint16_t obj_inst_id)
58 {
59 int index, avail = -1, i = 0, j = 0;
60
61 /* Check that there is no other instance with this ID */
62 for (index = 0; index < ARRAY_SIZE(inst); index++) {
63 if (inst[index].obj && inst[index].obj_inst_id == obj_inst_id) {
64 LOG_ERR("Can not create instance - "
65 "already existing: %u",
66 obj_inst_id);
67 return NULL;
68 }
69
70 /* Save first available slot index */
71 if (avail < 0 && !inst[index].obj) {
72 avail = index;
73 }
74 }
75
76 if (avail < 0) {
77 LOG_ERR("Can not create instance - no more room: %u", obj_inst_id);
78 return NULL;
79 }
80
81 (void)memset(res[avail], 0, sizeof(res[avail][0]) * ARRAY_SIZE(res[avail]));
82
83 init_res_instance(res_inst[avail], ARRAY_SIZE(res_inst[avail]));
84
85 /* initialize instance resource data */
86 INIT_OBJ_RES_OPT(LWM2M_BINARYAPPDATA_DATA_ID, res[avail], i, res_inst[avail], j,
87 BINARYAPPDATA_DATA_INSTANCE_MAX, true, true, NULL, NULL, NULL, NULL, NULL);
88 INIT_OBJ_RES_OPTDATA(LWM2M_BINARYAPPDATA_DATA_PRIORITY_ID, res[avail], i,
89 res_inst[avail], j);
90 INIT_OBJ_RES_OPTDATA(LWM2M_BINARYAPPDATA_DATA_CREATION_TIME_ID, res[avail], i,
91 res_inst[avail], j);
92 INIT_OBJ_RES_OPTDATA(LWM2M_BINARYAPPDATA_DATA_DESCRIPTION_ID, res[avail], i,
93 res_inst[avail], j);
94 INIT_OBJ_RES_OPTDATA(LWM2M_BINARYAPPDATA_DATA_FORMAT_ID, res[avail], i, res_inst[avail], j);
95 INIT_OBJ_RES_OPTDATA(LWM2M_BINARYAPPDATA_APP_ID, res[avail], i, res_inst[avail], j);
96
97 inst[avail].resources = res[avail];
98 inst[avail].resource_count = i;
99
100 LOG_DBG("Created LWM2M binary app data container instance: %d", obj_inst_id);
101 return &inst[avail];
102 }
103
lwm2m_binaryappdata_init(void)104 static int lwm2m_binaryappdata_init(void)
105 {
106 int ret = 0;
107
108 /* initialize the Event Log field data */
109 lwm2m_binaryappdata.obj_id = LWM2M_OBJECT_BINARYAPPDATACONTAINER_ID;
110 lwm2m_binaryappdata.version_major = BINARYAPPDATA_VERSION_MAJOR;
111 lwm2m_binaryappdata.version_minor = BINARYAPPDATA_VERSION_MINOR;
112 lwm2m_binaryappdata.is_core = false;
113 lwm2m_binaryappdata.fields = fields;
114 lwm2m_binaryappdata.field_count = ARRAY_SIZE(fields);
115 lwm2m_binaryappdata.max_instance_count = MAX_INSTANCE_COUNT;
116 lwm2m_binaryappdata.create_cb = lwm2m_binaryappdata_create;
117 lwm2m_register_obj(&lwm2m_binaryappdata);
118
119 return ret;
120 }
121
122 LWM2M_OBJ_INIT(lwm2m_binaryappdata_init);
123
