Contiki-NG
border-router-embedded.c
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1 /*
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3  * modification, are permitted provided that the following conditions
4  * are met:
5  * 1. Redistributions of source code must retain the above copyright
6  * notice, this list of conditions and the following disclaimer.
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8  * notice, this list of conditions and the following disclaimer in the
9  * documentation and/or other materials provided with the distribution.
10  * 3. Neither the name of the Institute nor the names of its contributors
11  * may be used to endorse or promote products derived from this software
12  * without specific prior written permission.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * This file is part of the Contiki operating system.
27  *
28  */
29 /**
30  * \file
31  * border-router
32  * \author
33  * Niclas Finne <nfi@sics.se>
34  * Joakim Eriksson <joakime@sics.se>
35  * Nicolas Tsiftes <nvt@sics.se>
36  */
37 
38 #include "contiki.h"
39 #include "net/routing/routing.h"
40 #if PLATFORM_SUPPORTS_BUTTON_HAL
41 #include "dev/button-hal.h"
42 #else
43 #include "dev/button-sensor.h"
44 #endif
45 #include "dev/slip.h"
46 #include "rpl-border-router.h"
47 
48 /*---------------------------------------------------------------------------*/
49 /* Log configuration */
50 #include "sys/log.h"
51 #define LOG_MODULE "BR"
52 #define LOG_LEVEL LOG_LEVEL_INFO
53 
54 void request_prefix(void);
55 
56 /*---------------------------------------------------------------------------*/
57 PROCESS(border_router_process, "Border router process");
58 /*---------------------------------------------------------------------------*/
59 PROCESS_THREAD(border_router_process, ev, data)
60 {
61  static struct etimer et;
62 
63  PROCESS_BEGIN();
64 
65 /* While waiting for the prefix to be sent through the SLIP connection, the future
66  * border router can join an existing DAG as a parent or child, or acquire a default
67  * router that will later take precedence over the SLIP fallback interface.
68  * Prevent that by turning the radio off until we are initialized as a DAG root.
69  */
70  prefix_set = 0;
71  NETSTACK_MAC.off();
72 
73  PROCESS_PAUSE();
74 
75 #if !PLATFORM_SUPPORTS_BUTTON_HAL
76  SENSORS_ACTIVATE(button_sensor);
77 #endif
78 
79  LOG_INFO("RPL-Border router started\n");
80 
81  /* Request prefix until it has been received */
82  while(!prefix_set) {
84  request_prefix();
86  LOG_INFO("Waiting for prefix\n");
87  }
88 
89  NETSTACK_MAC.on();
90 
91  print_local_addresses();
92 
93  while(1) {
94  PROCESS_YIELD();
95 #if PLATFORM_SUPPORTS_BUTTON_HAL
96  if(ev == button_hal_release_event) {
97 #else
98  if(ev == sensors_event && data == &button_sensor) {
99 #endif
100  LOG_INFO("Initiating global repair\n");
101  NETSTACK_ROUTING.global_repair("Button press");
102  }
103  }
104 
105  PROCESS_END();
106 }
107 /*---------------------------------------------------------------------------*/
SENSORS & button_sensor
Exports global symbols for the sensor API.
Definition: z1-sensors.c:46
#define PROCESS(name, strname)
Declare a process.
Definition: process.h:307
process_event_t button_hal_release_event
A broadcast event generated when a button gets released.
Definition: button-hal.c:54
int(* on)(void)
Turn the MAC layer on.
Definition: mac.h:75
#define PROCESS_BEGIN()
Define the beginning of a process.
Definition: process.h:120
#define PROCESS_END()
Define the end of a process.
Definition: process.h:131
#define PROCESS_WAIT_EVENT_UNTIL(c)
Wait for an event to be posted to the process, with an extra condition.
Definition: process.h:157
#define PROCESS_PAUSE()
Yield the process for a short while.
Definition: process.h:221
void(* global_repair)(const char *str)
Triggers a global topology repair.
Definition: routing.h:120
int(* off)(void)
Turn the MAC layer off.
Definition: mac.h:78
#define CLOCK_SECOND
A second, measured in system clock time.
Definition: clock.h:82
Routing driver header file
int etimer_expired(struct etimer *et)
Check if an event timer has expired.
Definition: etimer.c:213
#define PROCESS_YIELD()
Yield the currently running process.
Definition: process.h:164
A timer.
Definition: etimer.h:76
PROCESS_THREAD(cc2538_rf_process, ev, data)
Implementation of the cc2538 RF driver process.
Definition: cc2538-rf.c:1107
Header file for the logging system
void etimer_set(struct etimer *et, clock_time_t interval)
Set an event timer.
Definition: etimer.c:177
Header file for the button HAL.