contiki/examples/jn516x/tsch/tx-power-verification/rpl-border-router/rpl-border-router.c
2016-01-05 10:44:13 +01:00

170 lines
5.6 KiB
C

/*
* Copyright (c) 2015 NXP B.V.
* 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 NXP B.V. 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 NXP B.V. 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 NXP B.V. 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.
*
* This file is part of the Contiki operating system.
*
* Author: Theo van Daele <theo.van.daele@nxp.com>
*
*/
#include "contiki.h"
#include "contiki-lib.h"
#include "contiki-net.h"
#include "net/ip/uip.h"
#include "net/ipv6/uip-ds6.h"
#include "net/rpl/rpl.h"
#include "simple-udp.h"
#include "net/mac/tsch/tsch.h"
#include "net/mac/tsch/tsch-schedule.h"
#include "net/netstack.h"
#include "dev/slip.h"
#include "rest-engine.h"
#include "rpl-tools.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define DEBUG DEBUG_NONE
#include "net/ip/uip-debug.h"
static uip_ipaddr_t prefix;
static uint8_t prefix_set;
static void get_rssi_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
static void get_last_rssi_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
static char content[REST_MAX_CHUNK_SIZE];
static int content_len = 0;
#define CONTENT_PRINTF(...) { if(content_len < sizeof(content)) content_len += snprintf(content+content_len, sizeof(content)-content_len, __VA_ARGS__); }
PROCESS(border_router_process, "Border router process");
AUTOSTART_PROCESSES(&border_router_process);
RESOURCE(resource_get_rssi,
"title=\"Get RSSI\"",
get_rssi_handler,
NULL,
NULL,
NULL);
static void
get_rssi_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
int rssi_level;
unsigned int accept = -1;
REST.get_header_accept(request, &accept);
if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
content_len = 0;
NETSTACK_RADIO.get_value(RADIO_PARAM_RSSI, &rssi_level);
CONTENT_PRINTF("%d", rssi_level);
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
REST.set_response_payload(response, (uint8_t *)content, content_len);
}
}
RESOURCE(resource_get_last_rssi,
"title=\"Get last RSSI\"",
get_last_rssi_handler,
NULL,
NULL,
NULL);
static void
get_last_rssi_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
{
int last_rssi_level;
unsigned int accept = -1;
REST.get_header_accept(request, &accept);
if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
content_len = 0;
NETSTACK_RADIO.get_value(RADIO_PARAM_LAST_RSSI, &last_rssi_level);
CONTENT_PRINTF("%d", last_rssi_level);
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
REST.set_response_payload(response, (uint8_t *)content, content_len);
}
}
/*---------------------------------------------------------------------------*/
void
request_prefix(void)
{
/* mess up uip_buf with a dirty request... */
uip_buf[0] = '?';
uip_buf[1] = 'P';
uip_len = 2;
slip_send();
uip_len = 0;
}
/*---------------------------------------------------------------------------*/
void
set_prefix_64(uip_ipaddr_t *prefix_64)
{
memcpy(&prefix, prefix_64, 16);
prefix_set = 1;
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(border_router_process, ev, data)
{
static struct etimer et;
PROCESS_BEGIN();
/* While waiting for the prefix to be sent through the SLIP connection, the future
* border router can join an existing DAG as a parent or child, or acquire a default
* router that will later take precedence over the SLIP fallback interface.
* Prevent that by turning the radio off until we are initialized as a DAG root.
*/
prefix_set = 0;
PROCESS_PAUSE();
PRINTF("RPL-Border router started\n");
/* Request prefix until it has been received */
while(!prefix_set) {
etimer_set(&et, CLOCK_SECOND);
request_prefix();
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
PRINTF("Waiting for prefix\n");
}
PRINTF("Obtained prefix: ");
uip_debug_ipaddr_print(&prefix);
PRINTF("\n");
rpl_tools_init(&prefix);
rest_init_engine();
rest_activate_resource(&resource_get_rssi, "Get-RSSI");
rest_activate_resource(&resource_get_last_rssi, "Get-Last-RSSI");
PROCESS_END();
}
/*---------------------------------------------------------------------------*/