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 Channel Monitor.
32  */
33 
34 #ifndef CONFIG_CHANNEL_MONITOR_H_
35 #define CONFIG_CHANNEL_MONITOR_H_
36 
37 /**
38  * @addtogroup config-channel-monitor
39  *
40  * @brief
41  *   This module includes configuration variables for Channel Monitor.
42  *
43  * @{
44  */
45 
46 /**
47  * @def OPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE
48  *
49  * Define to 1 to enable Channel Monitor support.
50  */
51 #ifndef OPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE
52 #define OPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE 0
53 #endif
54 
55 /**
56  * @def OPENTHREAD_CONFIG_CHANNEL_MONITOR_SAMPLE_INTERVAL
57  *
58  * The sample interval in milliseconds used by Channel Monitoring feature.
59 
60  * When enabled, a zero-duration Energy Scan is performed, collecting a single RSSI sample per channel during each
61  * interval.
62  *
63  * Applicable only if Channel Monitoring feature is enabled (i.e., `OPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE` is set).
64  */
65 #ifndef OPENTHREAD_CONFIG_CHANNEL_MONITOR_SAMPLE_INTERVAL
66 #define OPENTHREAD_CONFIG_CHANNEL_MONITOR_SAMPLE_INTERVAL 41000
67 #endif
68 
69 /**
70  * @def OPENTHREAD_CONFIG_CHANNEL_MONITOR_RSSI_THRESHOLD
71  *
72  * The RSSI threshold in dBm used by Channel Monitoring feature.
73  *
74  * The RSSI samples are compared with the given threshold. Channel monitoring reports the average rate of RSSI samples
75  * that are above this threshold within an observation window (per channel).
76  *
77  * It is recommended that this value is set to same value as the CCA threshold used by radio.
78  *
79  * Applicable only if Channel Monitoring feature is enabled (i.e., `OPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE` is set).
80  */
81 #ifndef OPENTHREAD_CONFIG_CHANNEL_MONITOR_RSSI_THRESHOLD
82 #define OPENTHREAD_CONFIG_CHANNEL_MONITOR_RSSI_THRESHOLD -75
83 #endif
84 
85 /**
86  * @def OPENTHREAD_CONFIG_CHANNEL_MONITOR_SAMPLE_WINDOW
87  *
88  * The averaging sample window length (in units of channel sample interval) used by Channel Monitoring feature.
89  *
90  * Channel monitoring will sample all channels every sample interval. It maintains the average rate of RSSI samples
91  * that are above the RSSI threshold within (approximately) this sample window.
92  *
93  * Applicable only if Channel Monitoring feature is enabled (i.e., `OPENTHREAD_CONFIG_CHANNEL_MONITOR_ENABLE` is set).
94  */
95 #ifndef OPENTHREAD_CONFIG_CHANNEL_MONITOR_SAMPLE_WINDOW
96 #define OPENTHREAD_CONFIG_CHANNEL_MONITOR_SAMPLE_WINDOW 960
97 #endif
98 
99 /**
100  * @}
101  */
102 
103 #endif // CONFIG_CHANNEL_MONITOR_H_
104