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
133
134
135
136
137
138
139
140
141
142
|
// SPDX-License-Identifier: ISC
/*
* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <net/mac80211.h>
#include "core.h"
#include "mac.h"
#include "p2p.h"
static void ath12k_p2p_noa_ie_fill(u8 *data, size_t len,
const struct ath12k_wmi_p2p_noa_info *noa)
{
struct ieee80211_p2p_noa_attr *noa_attr;
u8 ctwindow = le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_CTWIN_TU);
bool oppps = le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_OPP_PS);
__le16 *noa_attr_len;
u16 attr_len;
u8 noa_descriptors = le32_get_bits(noa->noa_attr,
WMI_P2P_NOA_INFO_DESC_NUM);
int i;
/* P2P IE */
data[0] = WLAN_EID_VENDOR_SPECIFIC;
data[1] = len - 2;
data[2] = (WLAN_OUI_WFA >> 16) & 0xff;
data[3] = (WLAN_OUI_WFA >> 8) & 0xff;
data[4] = (WLAN_OUI_WFA >> 0) & 0xff;
data[5] = WLAN_OUI_TYPE_WFA_P2P;
/* NOA ATTR */
data[6] = IEEE80211_P2P_ATTR_ABSENCE_NOTICE;
noa_attr_len = (__le16 *)&data[7]; /* 2 bytes */
noa_attr = (struct ieee80211_p2p_noa_attr *)&data[9];
noa_attr->index = le32_get_bits(noa->noa_attr,
WMI_P2P_NOA_INFO_INDEX);
noa_attr->oppps_ctwindow = ctwindow;
if (oppps)
noa_attr->oppps_ctwindow |= IEEE80211_P2P_OPPPS_ENABLE_BIT;
for (i = 0; i < noa_descriptors; i++) {
noa_attr->desc[i].count =
__le32_to_cpu(noa->descriptors[i].type_count);
noa_attr->desc[i].duration = noa->descriptors[i].duration;
noa_attr->desc[i].interval = noa->descriptors[i].interval;
noa_attr->desc[i].start_time = noa->descriptors[i].start_time;
}
attr_len = 2; /* index + oppps_ctwindow */
attr_len += noa_descriptors * sizeof(struct ieee80211_p2p_noa_desc);
*noa_attr_len = __cpu_to_le16(attr_len);
}
static size_t ath12k_p2p_noa_ie_len_compute(const struct ath12k_wmi_p2p_noa_info *noa)
{
size_t len = 0;
if (!(le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_DESC_NUM)) &&
!(le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_OPP_PS)))
return 0;
len += 1 + 1 + 4; /* EID + len + OUI */
len += 1 + 2; /* noa attr + attr len */
len += 1 + 1; /* index + oppps_ctwindow */
len += le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_DESC_NUM) *
sizeof(struct ieee80211_p2p_noa_desc);
return len;
}
static void ath12k_p2p_noa_ie_assign(struct ath12k_vif *arvif, void *ie,
size_t len)
{
struct ath12k *ar = arvif->ar;
lockdep_assert_held(&ar->data_lock);
kfree(arvif->u.ap.noa_data);
arvif->u.ap.noa_data = ie;
arvif->u.ap.noa_len = len;
}
static void __ath12k_p2p_noa_update(struct ath12k_vif *arvif,
const struct ath12k_wmi_p2p_noa_info *noa)
{
struct ath12k *ar = arvif->ar;
void *ie;
size_t len;
lockdep_assert_held(&ar->data_lock);
ath12k_p2p_noa_ie_assign(arvif, NULL, 0);
len = ath12k_p2p_noa_ie_len_compute(noa);
if (!len)
return;
ie = kmalloc(len, GFP_ATOMIC);
if (!ie)
return;
ath12k_p2p_noa_ie_fill(ie, len, noa);
ath12k_p2p_noa_ie_assign(arvif, ie, len);
}
void ath12k_p2p_noa_update(struct ath12k_vif *arvif,
const struct ath12k_wmi_p2p_noa_info *noa)
{
struct ath12k *ar = arvif->ar;
spin_lock_bh(&ar->data_lock);
__ath12k_p2p_noa_update(arvif, noa);
spin_unlock_bh(&ar->data_lock);
}
static void ath12k_p2p_noa_update_vdev_iter(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
struct ath12k_p2p_noa_arg *arg = data;
if (arvif->vdev_id != arg->vdev_id)
return;
ath12k_p2p_noa_update(arvif, arg->noa);
}
void ath12k_p2p_noa_update_by_vdev_id(struct ath12k *ar, u32 vdev_id,
const struct ath12k_wmi_p2p_noa_info *noa)
{
struct ath12k_p2p_noa_arg arg = {
.vdev_id = vdev_id,
.noa = noa,
};
ieee80211_iterate_active_interfaces_atomic(ath12k_ar_to_hw(ar),
IEEE80211_IFACE_ITER_NORMAL,
ath12k_p2p_noa_update_vdev_iter,
&arg);
}
|
