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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
41cbb0f5 LC |
2 | /* |
3 | * HE handling | |
4 | * | |
5 | * Copyright(c) 2017 Intel Deutschland GmbH | |
41cbb0f5 LC |
6 | */ |
7 | ||
8 | #include "ieee80211_i.h" | |
9 | ||
10 | void | |
11 | ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, | |
12 | struct ieee80211_supported_band *sband, | |
13 | const u8 *he_cap_ie, u8 he_cap_len, | |
14 | struct sta_info *sta) | |
15 | { | |
16 | struct ieee80211_sta_he_cap *he_cap = &sta->sta.he_cap; | |
17 | struct ieee80211_he_cap_elem *he_cap_ie_elem = (void *)he_cap_ie; | |
18 | u8 he_ppe_size; | |
19 | u8 mcs_nss_size; | |
20 | u8 he_total_size; | |
21 | ||
22 | memset(he_cap, 0, sizeof(*he_cap)); | |
23 | ||
24 | if (!he_cap_ie || !ieee80211_get_he_sta_cap(sband)) | |
25 | return; | |
26 | ||
27 | /* Make sure size is OK */ | |
28 | mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap_ie_elem); | |
29 | he_ppe_size = | |
30 | ieee80211_he_ppe_size(he_cap_ie[sizeof(he_cap->he_cap_elem) + | |
31 | mcs_nss_size], | |
32 | he_cap_ie_elem->phy_cap_info); | |
33 | he_total_size = sizeof(he_cap->he_cap_elem) + mcs_nss_size + | |
34 | he_ppe_size; | |
35 | if (he_cap_len < he_total_size) | |
36 | return; | |
37 | ||
38 | memcpy(&he_cap->he_cap_elem, he_cap_ie, sizeof(he_cap->he_cap_elem)); | |
39 | ||
40 | /* HE Tx/Rx HE MCS NSS Support Field */ | |
41 | memcpy(&he_cap->he_mcs_nss_supp, | |
42 | &he_cap_ie[sizeof(he_cap->he_cap_elem)], mcs_nss_size); | |
43 | ||
44 | /* Check if there are (optional) PPE Thresholds */ | |
45 | if (he_cap->he_cap_elem.phy_cap_info[6] & | |
46 | IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) | |
47 | memcpy(he_cap->ppe_thres, | |
48 | &he_cap_ie[sizeof(he_cap->he_cap_elem) + mcs_nss_size], | |
49 | he_ppe_size); | |
50 | ||
51 | he_cap->has_he = true; | |
52 | } | |
697f6c50 JC |
53 | |
54 | void | |
55 | ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, | |
56 | const struct ieee80211_he_operation *he_op_ie_elem) | |
57 | { | |
58 | struct ieee80211_he_operation *he_operation = | |
59 | &vif->bss_conf.he_operation; | |
60 | ||
61 | if (!he_op_ie_elem) { | |
62 | memset(he_operation, 0, sizeof(*he_operation)); | |
63 | return; | |
64 | } | |
65 | ||
66 | vif->bss_conf.he_operation = *he_op_ie_elem; | |
67 | } | |
1ced169c JC |
68 | |
69 | void | |
70 | ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, | |
71 | const struct ieee80211_he_spr *he_spr_ie_elem) | |
72 | { | |
73 | struct ieee80211_he_obss_pd *he_obss_pd = | |
74 | &vif->bss_conf.he_obss_pd; | |
5db16ba8 | 75 | const u8 *data; |
1ced169c JC |
76 | |
77 | memset(he_obss_pd, 0, sizeof(*he_obss_pd)); | |
78 | ||
79 | if (!he_spr_ie_elem) | |
80 | return; | |
5db16ba8 | 81 | data = he_spr_ie_elem->optional; |
1ced169c JC |
82 | |
83 | if (he_spr_ie_elem->he_sr_control & | |
84 | IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT) | |
85 | data++; | |
86 | if (he_spr_ie_elem->he_sr_control & | |
87 | IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT) { | |
88 | he_obss_pd->max_offset = *data++; | |
89 | he_obss_pd->min_offset = *data++; | |
90 | he_obss_pd->enable = true; | |
91 | } | |
92 | } |