Contiki 2.5
nullmac.c
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1 /*
2  * Copyright (c) 2007, Swedish Institute of Computer Science.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the Institute nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * This file is part of the Contiki operating system.
30  *
31  * $Id: nullmac.c,v 1.15 2010/06/14 19:19:17 adamdunkels Exp $
32  */
33 
34 /**
35  * \file
36  * A MAC protocol that does not do anything.
37  * \author
38  * Adam Dunkels <adam@sics.se>
39  */
40 
41 #include "net/mac/nullmac.h"
42 #include "net/packetbuf.h"
43 #include "net/netstack.h"
44 
45 /*---------------------------------------------------------------------------*/
46 static void
47 send_packet(mac_callback_t sent, void *ptr)
48 {
49  NETSTACK_RDC.send(sent, ptr);
50 }
51 /*---------------------------------------------------------------------------*/
52 static void
53 packet_input(void)
54 {
55  NETSTACK_NETWORK.input();
56 }
57 /*---------------------------------------------------------------------------*/
58 static int
59 on(void)
60 {
61  return NETSTACK_RDC.on();
62 }
63 /*---------------------------------------------------------------------------*/
64 static int
65 off(int keep_radio_on)
66 {
67  return NETSTACK_RDC.off(keep_radio_on);
68 }
69 /*---------------------------------------------------------------------------*/
70 static unsigned short
71 channel_check_interval(void)
72 {
73  return 0;
74 }
75 /*---------------------------------------------------------------------------*/
76 static void
77 init(void)
78 {
79 }
80 /*---------------------------------------------------------------------------*/
81 const struct mac_driver nullmac_driver = {
82  "nullmac",
83  init,
84  send_packet,
85  packet_input,
86  on,
87  off,
88  channel_check_interval,
89 };
90 /*---------------------------------------------------------------------------*/
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