253 lines
6.5 KiB
C
253 lines
6.5 KiB
C
/*
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* Copyright (c) 2019 Foundries.io
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/*
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* Source material for IPSO On/Off Switch object (3342):
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* http://www.openmobilealliance.org/tech/profiles/lwm2m/3342.xml
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*/
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#define LOG_MODULE_NAME net_ipso_onoff_switch
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#define LOG_LEVEL CONFIG_LWM2M_LOG_LEVEL
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(LOG_MODULE_NAME);
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#include <stdint.h>
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#include <zephyr/init.h>
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#include "lwm2m_object.h"
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#include "lwm2m_engine.h"
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#include "lwm2m_resource_ids.h"
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#define SWITCH_VERSION_MAJOR 1
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#if defined(CONFIG_LWM2M_IPSO_ONOFF_SWITCH_VERSION_1_1)
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#define SWITCH_VERSION_MINOR 1
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#define SWITCH_MAX_ID 7
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#else
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#define SWITCH_VERSION_MINOR 0
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#define SWITCH_MAX_ID 5
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#endif /* defined(CONFIG_LWM2M_IPSO_ONOFF_SWITCH_VERSION_1_1) */
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#define MAX_INSTANCE_COUNT CONFIG_LWM2M_IPSO_ONOFF_SWITCH_INSTANCE_COUNT
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/*
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* Calculate resource instances as follows:
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* start with SWITCH_MAX_ID
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*/
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#define RESOURCE_INSTANCE_COUNT (SWITCH_MAX_ID)
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/* resource state */
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struct ipso_switch_data {
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uint64_t trigger_offset;
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int64_t on_time_sec;
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int64_t off_time_sec;
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int64_t counter;
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uint16_t obj_inst_id;
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bool last_state;
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bool state;
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};
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static struct ipso_switch_data switch_data[MAX_INSTANCE_COUNT];
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static struct lwm2m_engine_obj onoff_switch;
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static struct lwm2m_engine_obj_field fields[] = {
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OBJ_FIELD_DATA(DIGITAL_INPUT_STATE_RID, R, BOOL),
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OBJ_FIELD_DATA(DIGITAL_INPUT_COUNTER_RID, R_OPT, S64),
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OBJ_FIELD_DATA(ON_TIME_RID, RW_OPT, S64),
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OBJ_FIELD_DATA(OFF_TIME_RID, RW_OPT, S64),
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OBJ_FIELD_DATA(APPLICATION_TYPE_RID, RW_OPT, STRING),
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#if defined(CONFIG_LWM2M_IPSO_ONOFF_SWITCH_VERSION_1_1)
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OBJ_FIELD_DATA(TIMESTAMP_RID, R_OPT, TIME),
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OBJ_FIELD_DATA(FRACTIONAL_TIMESTAMP_RID, R_OPT, FLOAT),
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#endif
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};
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static struct lwm2m_engine_obj_inst inst[MAX_INSTANCE_COUNT];
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static struct lwm2m_engine_res res[MAX_INSTANCE_COUNT][SWITCH_MAX_ID];
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static struct lwm2m_engine_res_inst
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res_inst[MAX_INSTANCE_COUNT][RESOURCE_INSTANCE_COUNT];
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static int get_switch_index(uint16_t obj_inst_id)
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{
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int i, ret = -ENOENT;
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for (i = 0; i < ARRAY_SIZE(inst); i++) {
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if (!inst[i].obj || inst[i].obj_inst_id != obj_inst_id) {
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continue;
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}
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ret = i;
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break;
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}
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return ret;
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}
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static int state_post_write_cb(uint16_t obj_inst_id,
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uint16_t res_id, uint16_t res_inst_id,
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uint8_t *data, uint16_t data_len,
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bool last_block, size_t total_size)
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{
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int i;
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i = get_switch_index(obj_inst_id);
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if (i < 0) {
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return i;
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}
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if (switch_data[i].state) {
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/* reset off time */
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switch_data[i].off_time_sec = 0;
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if (!switch_data[i].last_state) {
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/* off to on transition */
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switch_data[i].counter++;
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if (switch_data[i].counter < 0) {
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switch_data[i].counter = 0;
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}
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}
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} else {
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/* reset on time */
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switch_data[i].on_time_sec = 0;
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}
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switch_data[i].last_state = switch_data[i].state;
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switch_data[i].trigger_offset = k_uptime_get();
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return 0;
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}
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static void *on_time_read_cb(uint16_t obj_inst_id,
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uint16_t res_id, uint16_t res_inst_id,
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size_t *data_len)
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{
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int i = get_switch_index(obj_inst_id);
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if (i < 0) {
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return NULL;
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}
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if (switch_data[i].state) {
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switch_data[i].on_time_sec =
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(int64_t)((k_uptime_get() - switch_data[i].trigger_offset) / 1000);
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}
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*data_len = sizeof(switch_data[i].on_time_sec);
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return &switch_data[i].on_time_sec;
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}
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static void *off_time_read_cb(uint16_t obj_inst_id,
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uint16_t res_id, uint16_t res_inst_id,
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size_t *data_len)
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{
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int i = get_switch_index(obj_inst_id);
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if (i < 0) {
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return NULL;
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}
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if (!switch_data[i].state) {
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switch_data[i].off_time_sec =
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(int64_t)((k_uptime_get() - switch_data[i].trigger_offset) / 1000);
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}
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*data_len = sizeof(switch_data[i].off_time_sec);
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return &switch_data[i].off_time_sec;
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}
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static int time_post_write_cb(uint16_t obj_inst_id,
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uint16_t res_id, uint16_t res_inst_id,
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uint8_t *data, uint16_t data_len,
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bool last_block, size_t total_size)
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{
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int i = get_switch_index(obj_inst_id);
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if (i < 0) {
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return i;
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}
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switch_data[i].trigger_offset = 0U;
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return 0;
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}
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static struct lwm2m_engine_obj_inst *switch_create(uint16_t obj_inst_id)
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{
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int index, avail = -1, i = 0, j = 0;
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/* Check that there is no other instance with this ID */
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for (index = 0; index < ARRAY_SIZE(inst); index++) {
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if (inst[index].obj && inst[index].obj_inst_id == obj_inst_id) {
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LOG_ERR("Can not create instance - "
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"already existing: %u", obj_inst_id);
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return NULL;
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}
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/* Save first available slot index */
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if (avail < 0 && !inst[index].obj) {
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avail = index;
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}
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}
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if (avail < 0) {
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LOG_ERR("Can not create instance - no more room: %u",
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obj_inst_id);
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return NULL;
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}
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/* Set default values */
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(void)memset(&switch_data[avail], 0, sizeof(switch_data[avail]));
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switch_data[avail].obj_inst_id = obj_inst_id;
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(void)memset(res[avail], 0,
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sizeof(res[avail][0]) * ARRAY_SIZE(res[avail]));
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init_res_instance(res_inst[avail], ARRAY_SIZE(res_inst[avail]));
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/* initialize instance resource data */
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INIT_OBJ_RES(DIGITAL_INPUT_STATE_RID, res[avail], i, res_inst[avail],
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j, 1, false, true, &switch_data[avail].state,
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sizeof(switch_data[avail].state),
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NULL, NULL, NULL, state_post_write_cb, NULL);
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INIT_OBJ_RES_DATA(DIGITAL_INPUT_COUNTER_RID, res[avail], i,
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res_inst[avail], j, &switch_data[avail].counter,
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sizeof(switch_data[avail].counter));
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INIT_OBJ_RES_OPT(ON_TIME_RID, res[avail], i,
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res_inst[avail], j, 1, false, true,
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on_time_read_cb, NULL, NULL, time_post_write_cb, NULL);
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INIT_OBJ_RES_OPT(OFF_TIME_RID, res[avail], i,
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res_inst[avail], j, 1, false, true,
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off_time_read_cb, NULL, NULL, time_post_write_cb, NULL);
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INIT_OBJ_RES_OPTDATA(APPLICATION_TYPE_RID, res[avail], i,
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res_inst[avail], j);
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#if defined(CONFIG_LWM2M_IPSO_ONOFF_SWITCH_VERSION_1_1)
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INIT_OBJ_RES_OPTDATA(TIMESTAMP_RID, res[avail], i, res_inst[avail], j);
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INIT_OBJ_RES_OPTDATA(FRACTIONAL_TIMESTAMP_RID, res[avail], i,
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res_inst[avail], j);
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#endif
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inst[avail].resources = res[avail];
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inst[avail].resource_count = i;
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LOG_DBG("Create IPSO On/Off Switch instance: %d", obj_inst_id);
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return &inst[avail];
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}
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static int ipso_switch_init(void)
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{
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onoff_switch.obj_id = IPSO_OBJECT_ONOFF_SWITCH_ID;
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onoff_switch.version_major = SWITCH_VERSION_MAJOR;
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onoff_switch.version_minor = SWITCH_VERSION_MINOR;
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onoff_switch.is_core = false;
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onoff_switch.fields = fields;
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onoff_switch.field_count = ARRAY_SIZE(fields);
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onoff_switch.max_instance_count = ARRAY_SIZE(inst);
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onoff_switch.create_cb = switch_create;
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lwm2m_register_obj(&onoff_switch);
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return 0;
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}
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LWM2M_OBJ_INIT(ipso_switch_init);
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