1 /*
2  *  Copyright (c) 2019, The OpenThread Authors.
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 are met:
7  *  1. Redistributions of source code must retain the above copyright
8  *     notice, this list of conditions and the following disclaimer.
9  *  2. Redistributions in binary form must reproduce the above copyright
10  *     notice, this list of conditions and the following disclaimer in the
11  *     documentation and/or other materials provided with the distribution.
12  *  3. Neither the name of the copyright holder nor the
13  *     names of its contributors may be used to endorse or promote products
14  *     derived from this software without specific prior written permission.
15  *
16  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  *  POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 /**
30  * @file
31  *   This file includes compile-time configurations for the Announce Sender.
32  */
33 
34 #ifndef CONFIG_ANNOUNCE_SENDER_H_
35 #define CONFIG_ANNOUNCE_SENDER_H_
36 
37 /**
38  * @addtogroup config-announce-sender
39  *
40  * @brief
41  *   This module includes configuration variables for the Announce Sender.
42  *
43  * @{
44  */
45 
46 /**
47  * @def OPENTHREAD_CONFIG_ANNOUNCE_SENDER_ENABLE
48  *
49  * Define as 1 to enable `AnnounceSender` which will periodically send MLE Announce message on all channels.
50  *
51  * The list of channels is determined from the Operational Dataset's ChannelMask.
52  */
53 #ifndef OPENTHREAD_CONFIG_ANNOUNCE_SENDER_ENABLE
54 #define OPENTHREAD_CONFIG_ANNOUNCE_SENDER_ENABLE 1
55 #endif
56 
57 /**
58  * @def OPENTHREAD_CONFIG_ANNOUNCE_SENDER_INTERVAL
59  *
60  * Specifies the time interval (in milliseconds) between `AnnounceSender` transmit cycles.
61  *
62  * In a cycle, the `AnnounceSender` sends MLE Announcement on all channels in Active Operational Dataset's ChannelMask.
63  * The transmissions on different channels happen uniformly over the given interval (i.e., if there are 16 channels,
64  * there will be 16 MLE Announcement messages each on one channel with `interval / 16`  between two consecutive MLE
65  * Announcement transmissions).
66  *
67  * Applicable only if `AnnounceSender` feature is enabled (see `OPENTHREAD_CONFIG_ANNOUNCE_SENDER_ENABLE`).
68  */
69 #ifndef OPENTHREAD_CONFIG_ANNOUNCE_SENDER_INTERVAL
70 #define OPENTHREAD_CONFIG_ANNOUNCE_SENDER_INTERVAL 688000 // 688 seconds = 11 min and 28 sec.
71 #endif
72 
73 /**
74  * @def OPENTHREAD_CONFIG_ANNOUNCE_SENDER_REDUNDANCY_CONSTANT
75  *
76  * Specifies the number of MLE Announcement messages that the device must receive within a cycle interval to skip
77  * sending the Announcement itself.
78  *
79  * This is used as the trickle timer redundancy constant in `AnnounceSender`.
80  *
81  * Applicable only if `AnnounceSender` feature is enabled (see `OPENTHREAD_CONFIG_ANNOUNCE_SENDER_ENABLE`).
82  */
83 #ifndef OPENTHREAD_CONFIG_ANNOUNCE_SENDER_REDUNDANCY_CONSTANT
84 #define OPENTHREAD_CONFIG_ANNOUNCE_SENDER_REDUNDANCY_CONSTANT 8
85 #endif
86 
87 /**
88  *  @def OPENTHREAD_CONFIG_ANNOUNCE_SENDER_JITTER_INTERVAL
89  *
90  * Specifies the jitter interval (in milliseconds) used by `AnnounceSender`. A random jitter interval is applied to
91  * the period between any two successive MLE Announcement transmissions (possibly) on different channels.
92  */
93 #ifndef OPENTHREAD_CONFIG_ANNOUNCE_SENDER_JITTER_INTERVAL
94 #define OPENTHREAD_CONFIG_ANNOUNCE_SENDER_JITTER_INTERVAL 500
95 #endif
96 
97 /**
98  * @}
99  */
100 
101 #endif // CONFIG_ANNOUNCE_SENDER_H_
102