From b119ad6e726cc805f739f8f6843b9de4df1f895e Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Thu, 6 Aug 2015 23:47:33 +0200 Subject: mac80211: add rate mask logic for vht rates Define rc_rateidx_vht_mcs_mask array and rate_idx_match_vht_mcs_mask() method in order to apply mcs mask for vht rates Signed-off-by: Lorenzo Bianconi Signed-off-by: Johannes Berg --- net/mac80211/vht.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'net/mac80211/vht.c') diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index f05808d0d80f..834ccdbc74be 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -426,3 +426,29 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, if (changed > 0) rate_control_rate_update(local, sband, sta, changed); } + +void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, + u16 vht_mask[NL80211_VHT_NSS_MAX]) +{ + int i; + u16 mask, cap = le16_to_cpu(vht_cap); + + for (i = 0; i < NL80211_VHT_NSS_MAX; i++) { + mask = (cap >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; + switch (mask) { + case IEEE80211_VHT_MCS_SUPPORT_0_7: + vht_mask[i] = 0x00FF; + break; + case IEEE80211_VHT_MCS_SUPPORT_0_8: + vht_mask[i] = 0x01FF; + break; + case IEEE80211_VHT_MCS_SUPPORT_0_9: + vht_mask[i] = 0x03FF; + break; + case IEEE80211_VHT_MCS_NOT_SUPPORTED: + default: + vht_mask[i] = 0; + break; + } + } +} -- cgit v1.2.3