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
129
130
131
132
|
/* Copyright (c) 2016, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/slab.h>
#define ICNSS_MAX_CH_NUM 45
static DEFINE_MUTEX(unsafe_channel_list_lock);
static DEFINE_MUTEX(dfs_nol_info_lock);
static struct icnss_unsafe_channel_list {
u16 unsafe_ch_count;
u16 unsafe_ch_list[ICNSS_MAX_CH_NUM];
} unsafe_channel_list;
static struct icnss_dfs_nol_info {
void *dfs_nol_info;
u16 dfs_nol_info_len;
} dfs_nol_info;
int icnss_set_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 ch_count)
{
mutex_lock(&unsafe_channel_list_lock);
if ((!unsafe_ch_list) || (ch_count > ICNSS_MAX_CH_NUM)) {
mutex_unlock(&unsafe_channel_list_lock);
return -EINVAL;
}
unsafe_channel_list.unsafe_ch_count = ch_count;
if (ch_count != 0) {
memcpy(
(char *)unsafe_channel_list.unsafe_ch_list,
(char *)unsafe_ch_list, ch_count * sizeof(u16));
}
mutex_unlock(&unsafe_channel_list_lock);
return 0;
}
EXPORT_SYMBOL(icnss_set_wlan_unsafe_channel);
int icnss_get_wlan_unsafe_channel(u16 *unsafe_ch_list,
u16 *ch_count, u16 buf_len)
{
mutex_lock(&unsafe_channel_list_lock);
if (!unsafe_ch_list || !ch_count) {
mutex_unlock(&unsafe_channel_list_lock);
return -EINVAL;
}
if (buf_len < (unsafe_channel_list.unsafe_ch_count * sizeof(u16))) {
mutex_unlock(&unsafe_channel_list_lock);
return -ENOMEM;
}
*ch_count = unsafe_channel_list.unsafe_ch_count;
memcpy(
(char *)unsafe_ch_list,
(char *)unsafe_channel_list.unsafe_ch_list,
unsafe_channel_list.unsafe_ch_count * sizeof(u16));
mutex_unlock(&unsafe_channel_list_lock);
return 0;
}
EXPORT_SYMBOL(icnss_get_wlan_unsafe_channel);
int icnss_wlan_set_dfs_nol(const void *info, u16 info_len)
{
void *temp;
struct icnss_dfs_nol_info *dfs_info;
mutex_lock(&dfs_nol_info_lock);
if (!info || !info_len) {
mutex_unlock(&dfs_nol_info_lock);
return -EINVAL;
}
temp = kmalloc(info_len, GFP_KERNEL);
if (!temp) {
mutex_unlock(&dfs_nol_info_lock);
return -ENOMEM;
}
memcpy(temp, info, info_len);
dfs_info = &dfs_nol_info;
kfree(dfs_info->dfs_nol_info);
dfs_info->dfs_nol_info = temp;
dfs_info->dfs_nol_info_len = info_len;
mutex_unlock(&dfs_nol_info_lock);
return 0;
}
EXPORT_SYMBOL(icnss_wlan_set_dfs_nol);
int icnss_wlan_get_dfs_nol(void *info, u16 info_len)
{
int len;
struct icnss_dfs_nol_info *dfs_info;
mutex_lock(&dfs_nol_info_lock);
if (!info || !info_len) {
mutex_unlock(&dfs_nol_info_lock);
return -EINVAL;
}
dfs_info = &dfs_nol_info;
if (dfs_info->dfs_nol_info == NULL ||
dfs_info->dfs_nol_info_len == 0) {
mutex_unlock(&dfs_nol_info_lock);
return -ENOENT;
}
len = min(info_len, dfs_info->dfs_nol_info_len);
memcpy(info, dfs_info->dfs_nol_info, len);
mutex_unlock(&dfs_nol_info_lock);
return len;
}
EXPORT_SYMBOL(icnss_wlan_get_dfs_nol);
|
