56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/*
|
|
* HE handling
|
|
*
|
|
* Copyright(c) 2017 Intel Deutschland GmbH
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#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;
|
|
}
|