142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* HE handling
|
|
*
|
|
* Copyright(c) 2017 Intel Deutschland GmbH
|
|
* Copyright(c) 2019 - 2020 Intel Corporation
|
|
*/
|
|
|
|
#include "ieee80211_i.h"
|
|
|
|
static void
|
|
ieee80211_update_from_he_6ghz_capa(const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
|
|
struct sta_info *sta)
|
|
{
|
|
enum ieee80211_smps_mode smps_mode;
|
|
|
|
if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
|
|
sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
|
|
switch (le16_get_bits(he_6ghz_capa->capa,
|
|
IEEE80211_HE_6GHZ_CAP_SM_PS)) {
|
|
case WLAN_HT_CAP_SM_PS_INVALID:
|
|
case WLAN_HT_CAP_SM_PS_STATIC:
|
|
smps_mode = IEEE80211_SMPS_STATIC;
|
|
break;
|
|
case WLAN_HT_CAP_SM_PS_DYNAMIC:
|
|
smps_mode = IEEE80211_SMPS_DYNAMIC;
|
|
break;
|
|
case WLAN_HT_CAP_SM_PS_DISABLED:
|
|
smps_mode = IEEE80211_SMPS_OFF;
|
|
break;
|
|
}
|
|
|
|
sta->sta.smps_mode = smps_mode;
|
|
} else {
|
|
sta->sta.smps_mode = IEEE80211_SMPS_OFF;
|
|
}
|
|
|
|
switch (le16_get_bits(he_6ghz_capa->capa,
|
|
IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN)) {
|
|
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
|
|
sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454;
|
|
break;
|
|
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
|
|
sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_7991;
|
|
break;
|
|
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
|
|
default:
|
|
sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_3895;
|
|
break;
|
|
}
|
|
|
|
sta->sta.he_6ghz_capa = *he_6ghz_capa;
|
|
}
|
|
|
|
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,
|
|
const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
|
|
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;
|
|
|
|
sta->cur_max_bandwidth = ieee80211_sta_cap_rx_bw(sta);
|
|
sta->sta.bandwidth = ieee80211_sta_cur_vht_bw(sta);
|
|
|
|
if (sband->band == NL80211_BAND_6GHZ && he_6ghz_capa)
|
|
ieee80211_update_from_he_6ghz_capa(he_6ghz_capa, sta);
|
|
}
|
|
|
|
void
|
|
ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
|
|
const struct ieee80211_he_operation *he_op_ie)
|
|
{
|
|
memset(&vif->bss_conf.he_oper, 0, sizeof(vif->bss_conf.he_oper));
|
|
if (!he_op_ie)
|
|
return;
|
|
|
|
vif->bss_conf.he_oper.params = __le32_to_cpu(he_op_ie->he_oper_params);
|
|
vif->bss_conf.he_oper.nss_set = __le16_to_cpu(he_op_ie->he_mcs_nss_set);
|
|
}
|
|
|
|
void
|
|
ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
|
|
const struct ieee80211_he_spr *he_spr_ie_elem)
|
|
{
|
|
struct ieee80211_he_obss_pd *he_obss_pd =
|
|
&vif->bss_conf.he_obss_pd;
|
|
const u8 *data;
|
|
|
|
memset(he_obss_pd, 0, sizeof(*he_obss_pd));
|
|
|
|
if (!he_spr_ie_elem)
|
|
return;
|
|
data = he_spr_ie_elem->optional;
|
|
|
|
if (he_spr_ie_elem->he_sr_control &
|
|
IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT)
|
|
data++;
|
|
if (he_spr_ie_elem->he_sr_control &
|
|
IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT) {
|
|
he_obss_pd->max_offset = *data++;
|
|
he_obss_pd->min_offset = *data++;
|
|
he_obss_pd->enable = true;
|
|
}
|
|
}
|