| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * HE handling |
| * |
| * Copyright(c) 2017 Intel Deutschland GmbH |
| */ |
| |
| #include "ieee80211_i.h" |
| |
| void |
| ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_supported_band *sband, |
| const u8 *he_cap_ie, u8 he_cap_len, |
| struct sta_info *sta) |
| { |
| struct ieee80211_sta_he_cap *he_cap = &sta->sta.he_cap; |
| struct ieee80211_he_cap_elem *he_cap_ie_elem = (void *)he_cap_ie; |
| u8 he_ppe_size; |
| u8 mcs_nss_size; |
| u8 he_total_size; |
| |
| memset(he_cap, 0, sizeof(*he_cap)); |
| |
| if (!he_cap_ie || !ieee80211_get_he_sta_cap(sband)) |
| return; |
| |
| /* Make sure size is OK */ |
| mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap_ie_elem); |
| he_ppe_size = |
| ieee80211_he_ppe_size(he_cap_ie[sizeof(he_cap->he_cap_elem) + |
| mcs_nss_size], |
| he_cap_ie_elem->phy_cap_info); |
| he_total_size = sizeof(he_cap->he_cap_elem) + mcs_nss_size + |
| he_ppe_size; |
| if (he_cap_len < he_total_size) |
| return; |
| |
| memcpy(&he_cap->he_cap_elem, he_cap_ie, sizeof(he_cap->he_cap_elem)); |
| |
| /* HE Tx/Rx HE MCS NSS Support Field */ |
| memcpy(&he_cap->he_mcs_nss_supp, |
| &he_cap_ie[sizeof(he_cap->he_cap_elem)], mcs_nss_size); |
| |
| /* Check if there are (optional) PPE Thresholds */ |
| if (he_cap->he_cap_elem.phy_cap_info[6] & |
| IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) |
| memcpy(he_cap->ppe_thres, |
| &he_cap_ie[sizeof(he_cap->he_cap_elem) + mcs_nss_size], |
| he_ppe_size); |
| |
| he_cap->has_he = true; |
| } |