-
Notifications
You must be signed in to change notification settings - Fork 0
/
nwkGroup.c
128 lines (116 loc) · 4.59 KB
/
nwkGroup.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
/**
* \file nwkGroup.c
*
* \brief Multicast group management implementation
*
* Copyright (C) 2012-2014, Atmel Corporation. All rights reserved.
*
* \asf_license_start
*
* 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. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
*
* \asf_license_stop
*
* $Id: nwkGroup.c 9157 2014-01-28 19:32:53Z ataradov $
*
*/
/*- Includes ---------------------------------------------------------------*/
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "sysConfig.h"
#ifdef NWK_ENABLE_MULTICAST
/*- Definitions ------------------------------------------------------------*/
#define NWK_GROUP_FREE 0xffff
/*- Prototypes -------------------------------------------------------------*/
static bool nwkGroupSwitch(uint16_t from, uint16_t to);
/*- Variables --------------------------------------------------------------*/
static uint16_t nwkGroups[NWK_GROUPS_AMOUNT];
/*- Implementations --------------------------------------------------------*/
/*************************************************************************//**
@brief Initializes the Group module
*****************************************************************************/
void nwkGroupInit(void)
{
for (uint8_t i = 0; i < NWK_GROUPS_AMOUNT; i++)
nwkGroups[i] = NWK_GROUP_FREE;
}
/*************************************************************************//**
@brief Adds node to the @a group
@param[in] group Group ID
@return @c true in case of success and @c false otherwise
*****************************************************************************/
bool NWK_GroupAdd(uint16_t group)
{
return nwkGroupSwitch(NWK_GROUP_FREE, group);
}
/*************************************************************************//**
@brief Removes node from the @a group
@param[in] group Group ID
@return @c true in case of success and @c false otherwise
*****************************************************************************/
bool NWK_GroupRemove(uint16_t group)
{
return nwkGroupSwitch(group, NWK_GROUP_FREE);
}
/*************************************************************************//**
@brief Verifies if node is a member of the @a group
@param[in] group Group ID
@return @c true if node is a member of the group and @c false otherwise
*****************************************************************************/
bool NWK_GroupIsMember(uint16_t group)
{
for (uint8_t i = 0; i < NWK_GROUPS_AMOUNT; i++)
if (group == nwkGroups[i])
return true;
return false;
}
/*************************************************************************//**
@brief Switches records with IDs @a from and @a to in the the group table
@param[in] from Source group ID
@param[in] to Destination group ID
@return @c true if @a from entry was found and @c false otherwise
*****************************************************************************/
static bool nwkGroupSwitch(uint16_t from, uint16_t to)
{
for (uint8_t i = 0; i < NWK_GROUPS_AMOUNT; i++)
{
if (from == nwkGroups[i])
{
nwkGroups[i] = to;
return true;
}
}
return false;
}
uint16_t* NWK_GetGroups(void) {
return nwkGroups;
}
#endif // NWK_ENABLE_MULTICAST