nes-proj/apps/oma-lwm2m/lwm2m-device.c

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/*
* Copyright (c) 2015, Yanzi Networks 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 oma-lwm2m
* @{
*/
/**
* \file
* Implementation of the Contiki OMA LWM2M device
* \author
* Joakim Eriksson <joakime@sics.se>
* Niclas Finne <nfi@sics.se>
*/
#include "lwm2m-object.h"
#include "lwm2m-device.h"
#include "lwm2m-engine.h"
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif
static int32_t time_offset = 0;
/*---------------------------------------------------------------------------*/
static int
read_lwtime(lwm2m_context_t *ctx, uint8_t *outbuf, size_t outsize)
{
return ctx->writer->write_int(ctx, outbuf, outsize,
time_offset + clock_seconds());
}
/*---------------------------------------------------------------------------*/
static int
set_lwtime(lwm2m_context_t *ctx, const uint8_t *inbuf, size_t insize,
uint8_t *outbuf, size_t outsize)
{
/* assume that this only read one TLV value */
int32_t lw_time;
size_t len = ctx->reader->read_int(ctx, inbuf, insize, &lw_time);
if(len == 0) {
PRINTF("FAIL: could not read time '%*.s'\n", (int)insize, inbuf);
} else {
PRINTF("Got: time: %*.s => %" PRId32 "\n", (int)insize, inbuf, lw_time);
time_offset = lw_time - clock_seconds();
PRINTF("Write time...%" PRId32 " => offset = %" PRId32 "\n",
lw_time, time_offset);
}
/* return the number of bytes read */
return len;
}
/*---------------------------------------------------------------------------*/
#ifdef PLATFORM_REBOOT
static struct ctimer reboot_timer;
static void
do_the_reboot(void *ptr)
{
PLATFORM_REBOOT();
}
static int
reboot(lwm2m_context_t *ctx, const uint8_t *arg, size_t argsize,
uint8_t *outbuf, size_t outsize)
{
PRINTF("Device will reboot!\n");
ctimer_set(&reboot_timer, CLOCK_SECOND / 2, do_the_reboot, NULL);
return 0;
}
#endif /* PLATFORM_REBOOT */
/*---------------------------------------------------------------------------*/
#ifdef PLATFORM_FACTORY_DEFAULT
static int
factory_reset(lwm2m_context_t *ctx, const uint8_t *arg, size_t arg_size,
uint8_t *outbuf, size_t outsize)
{
PRINTF("Device will do factory default!\n");
PLATFORM_FACTORY_DEFAULT();
return 0;
}
#endif /* PLATFORM_FACTORY_DEFAULT */
/*---------------------------------------------------------------------------*/
LWM2M_RESOURCES(device_resources,
#ifdef LWM2M_DEVICE_MANUFACTURER
LWM2M_RESOURCE_STRING(0, LWM2M_DEVICE_MANUFACTURER),
#endif /* LWM2M_DEVICE_MANUFACTURER */
#ifdef LWM2M_DEVICE_TYPE
LWM2M_RESOURCE_STRING(17, LWM2M_DEVICE_TYPE),
#endif /* LWM2M_DEVICE_TYPE */
#ifdef LWM2M_DEVICE_MODEL_NUMBER
LWM2M_RESOURCE_STRING(1, LWM2M_DEVICE_MODEL_NUMBER),
#endif /* LWM2M_DEVICE_MODEL_NUMBER */
#ifdef LWM2M_DEVICE_SERIAL_NO
LWM2M_RESOURCE_STRING(2, LWM2M_DEVICE_SERIAL_NO),
#endif /* LWM2M_DEVICE_SERIAL_NO */
#ifdef LWM2M_DEVICE_FIRMWARE_VERSION
LWM2M_RESOURCE_STRING(3, LWM2M_DEVICE_FIRMWARE_VERSION),
#endif /* LWM2M_DEVICE_FIRMWARE_VERSION */
#ifdef PLATFORM_REBOOT
LWM2M_RESOURCE_CALLBACK(4, { NULL, NULL, reboot }),
#endif /* PLATFORM_REBOOT */
#ifdef PLATFORM_FACTORY_DEFAULT
LWM2M_RESOURCE_CALLBACK(5, { NULL, NULL, factory_reset }),
#endif /* PLATFORM_FACTORY_DEFAULT */
/* Current Time */
LWM2M_RESOURCE_CALLBACK(13, { read_lwtime, set_lwtime, NULL }),
);
LWM2M_INSTANCES(device_instances, LWM2M_INSTANCE(0, device_resources));
LWM2M_OBJECT(device, 3, device_instances);
/*---------------------------------------------------------------------------*/
void
lwm2m_device_init(void)
{
/**
* Register this device and its handlers - the handlers
* automatically sends in the object to handle.
*/
PRINTF("*** Init lwm2m-device\n");
lwm2m_engine_register_object(&device);
}
/*---------------------------------------------------------------------------*/
/** @} */