diff options
| author | Ryder Lee <ryder.lee@mediatek.com> | 2023-03-28 01:07:42 +0800 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-03-31 11:09:59 +0200 |
| commit | df1875c4f345092716f1529d6e8c43e7fc7f250a (patch) | |
| tree | f947041b6df2a90f0ad238ca7e286354e8ddfa6f /net/mac80211/util.c | |
| parent | 0b354b8b09be37f672ca0f91855f86331d08f1a4 (diff) | |
wifi: mac80211: enable EHT mesh support
Similar to AP beacon, this enables the basic mesh EHT mode, including
EHT operation IE and the fixed field of EHT operation information IE.
As for the optional part (i.e. preamble puncturing bitmap) will be
added in future patch.
Tested-by: Lian Chen <lian.chen@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Link: https://lore.kernel.org/r/1e0ddb9001312451c3e99c4eed2072caf8075f61.1679935259.git.ryder.lee@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 9f5cc16538f3..1527d6aafc14 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -3485,6 +3485,77 @@ out: return pos; } +u8 *ieee80211_ie_build_eht_oper(u8 *pos, struct cfg80211_chan_def *chandef, + const struct ieee80211_sta_eht_cap *eht_cap) + +{ + const struct ieee80211_eht_mcs_nss_supp_20mhz_only *eht_mcs_nss = + &eht_cap->eht_mcs_nss_supp.only_20mhz; + struct ieee80211_eht_operation *eht_oper; + struct ieee80211_eht_operation_info *eht_oper_info; + u8 eht_oper_len = offsetof(struct ieee80211_eht_operation, optional); + u8 eht_oper_info_len = + offsetof(struct ieee80211_eht_operation_info, optional); + u8 chan_width = 0; + + *pos++ = WLAN_EID_EXTENSION; + *pos++ = 1 + eht_oper_len + eht_oper_info_len; + *pos++ = WLAN_EID_EXT_EHT_OPERATION; + + eht_oper = (struct ieee80211_eht_operation *)pos; + + memcpy(&eht_oper->basic_mcs_nss, eht_mcs_nss, sizeof(*eht_mcs_nss)); + eht_oper->params |= IEEE80211_EHT_OPER_INFO_PRESENT; + pos += eht_oper_len; + + eht_oper_info = + (struct ieee80211_eht_operation_info *)eht_oper->optional; + + eht_oper_info->ccfs0 = + ieee80211_frequency_to_channel(chandef->center_freq1); + if (chandef->center_freq2) + eht_oper_info->ccfs1 = + ieee80211_frequency_to_channel(chandef->center_freq2); + else + eht_oper_info->ccfs1 = 0; + + switch (chandef->width) { + case NL80211_CHAN_WIDTH_320: + chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ; + eht_oper_info->ccfs1 = eht_oper_info->ccfs0; + if (chandef->chan->center_freq < chandef->center_freq1) + eht_oper_info->ccfs0 -= 16; + else + eht_oper_info->ccfs0 += 16; + break; + case NL80211_CHAN_WIDTH_160: + eht_oper_info->ccfs1 = eht_oper_info->ccfs0; + if (chandef->chan->center_freq < chandef->center_freq1) + eht_oper_info->ccfs0 -= 8; + else + eht_oper_info->ccfs0 += 8; + fallthrough; + case NL80211_CHAN_WIDTH_80P80: + chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ; + break; + case NL80211_CHAN_WIDTH_80: + chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ; + break; + case NL80211_CHAN_WIDTH_40: + chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ; + break; + default: + chan_width = IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ; + break; + } + eht_oper_info->control = chan_width; + pos += eht_oper_info_len; + + /* TODO: eht_oper_info->optional */ + + return pos; +} + bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, struct cfg80211_chan_def *chandef) { |