nes-proj/os/services/ipso-objects/ipso-control-template.c

205 lines
6.0 KiB
C

/*
* Copyright (c) 2016, SICS Swedish ICT AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \addtogroup ipso-objects
* @{
*
*/
/**
* \file
* Implementation of OMA LWM2M / IPSO control template.
* Useful for implementing controllable objects
* \author
* Joakim Eriksson <joakime@sics.se>
* Niclas Finne <nfi@sics.se>
*/
#include "ipso-control-template.h"
#include "lwm2m-engine.h"
#include "coap-timer.h"
#include <inttypes.h>
#include <string.h>
#include <stdio.h>
#define IPSO_ONOFF 5850
#define IPSO_DIMMER 5851
#define IPSO_ON_TIME 5852
static const lwm2m_resource_id_t resources[] =
{
RW(IPSO_ONOFF),
RW(IPSO_DIMMER),
RW(IPSO_ON_TIME)
};
/*---------------------------------------------------------------------------*/
lwm2m_status_t
ipso_control_set_on(ipso_control_t *control, uint8_t onoroff)
{
uint8_t v;
if(onoroff) {
v = control->value & 0x7f;
if(v == 0) {
v = 100;
}
} else {
v = 0;
}
return ipso_control_set_value(control, v);
}
/*---------------------------------------------------------------------------*/
lwm2m_status_t
ipso_control_set_value(ipso_control_t *control, uint8_t value)
{
lwm2m_status_t status = LWM2M_STATUS_OK;
int was_on;
was_on = ipso_control_is_on(control);
if(value == 0) {
if(was_on) {
/* Turn off */
status = control->set_value(0);
if(status == LWM2M_STATUS_OK) {
control->value &= 0x7f;
control->on_time +=
(coap_timer_uptime() - control->last_on_time) / 1000;
}
}
} else {
/* Restrict value between 0 - 100 */
if(value > 100) {
value = 100;
}
value |= 0x80;
if(value != control->value) {
status = control->set_value(value & 0x7f);
if(status == LWM2M_STATUS_OK) {
control->value = value;
if(! was_on) {
control->last_on_time = coap_timer_uptime();
}
}
}
}
return status;
}
/*---------------------------------------------------------------------------*/
static lwm2m_status_t
lwm2m_callback(lwm2m_object_instance_t *object, lwm2m_context_t *ctx)
{
ipso_control_t *control;
int32_t v;
/* Here we cast to our sensor-template struct */
control = (ipso_control_t *)object;
if(ctx->operation == LWM2M_OP_READ) {
switch(ctx->resource_id) {
case IPSO_ONOFF:
v = ipso_control_is_on(control) ? 1 : 0;
break;
case IPSO_DIMMER:
v = ipso_control_get_value(control);
break;
case IPSO_ON_TIME:
v = control->on_time;
if(ipso_control_is_on(control)) {
v += (coap_timer_uptime() - control->last_on_time) / 1000;
}
printf("ON-TIME: %"PRId32" (last on: %"PRIu32"\n", v, control->on_time);
break;
default:
return LWM2M_STATUS_ERROR;
}
lwm2m_object_write_int(ctx, v);
return LWM2M_STATUS_OK;
} else if(ctx->operation == LWM2M_OP_WRITE) {
switch(ctx->resource_id) {
case IPSO_ONOFF:
if(lwm2m_object_read_int(ctx, ctx->inbuf->buffer, ctx->inbuf->size, &v) == 0) {
return LWM2M_STATUS_ERROR;
}
return ipso_control_set_on(control, v > 0);
case IPSO_DIMMER:
if(lwm2m_object_read_int(ctx, ctx->inbuf->buffer, ctx->inbuf->size, &v) == 0) {
return LWM2M_STATUS_ERROR;
}
if(v < 0) {
v = 0;
} else if(v > 100) {
v = 100;
}
return ipso_control_set_value(control, v & 0xff);
case IPSO_ON_TIME:
if(lwm2m_object_read_int(ctx, ctx->inbuf->buffer, ctx->inbuf->size, &v) == 0) {
return LWM2M_STATUS_ERROR;
}
if(v == 0) {
control->on_time = 0;
control->last_on_time = coap_timer_uptime();
return LWM2M_STATUS_OK;
} else {
/* Only allowed to write 0 to reset ontime */
return LWM2M_STATUS_FORBIDDEN;
}
break;
default:
return LWM2M_STATUS_ERROR;
}
} else {
return LWM2M_STATUS_OPERATION_NOT_ALLOWED;
}
}
/*---------------------------------------------------------------------------*/
int
ipso_control_add(ipso_control_t *control)
{
control->reg_object.resource_ids = resources;
control->reg_object.resource_count =
sizeof(resources) / sizeof(lwm2m_resource_id_t);
control->reg_object.callback = lwm2m_callback;
return lwm2m_engine_add_object(&control->reg_object);
}
/*---------------------------------------------------------------------------*/
int
ipso_control_remove(ipso_control_t *control)
{
lwm2m_engine_remove_object(&control->reg_object);
return 1;
}
/*---------------------------------------------------------------------------*/