From 474a41e94dfc85167e1761bfbb8bf180f90633b2 Mon Sep 17 00:00:00 2001 From: Maithili Hinge Date: Tue, 18 Mar 2014 22:24:10 -0700 Subject: [PATCH] mwifiex: update MCS set as per RX-STBC bit from hostapd To set AP in 1X1 or 2X2 mode through hostapd, we need to set RX-STBC* in hostapd.conf file. Depending upon RX-STBC bit in ht_cap IE received from hostapd, we need to update mcs set in bss_cfg appropriately before starting AP. Signed-off-by: Maithili Hinge Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/cfg80211.c | 6 +++--- drivers/net/wireless/mwifiex/fw.h | 5 +++++ drivers/net/wireless/mwifiex/uap_cmd.c | 20 ++++++++++++++++++++ 3 files changed, 28 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index ee45d626eedb..21ee27ab7b74 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -2100,10 +2100,10 @@ mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, else ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; - if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap)) - ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; + if (adapter->user_dev_mcs_support == HT_STREAM_2X2) + ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT; else - ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT); + ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h index 341e41978ac6..b485dc1ae5eb 100644 --- a/drivers/net/wireless/mwifiex/fw.h +++ b/drivers/net/wireless/mwifiex/fw.h @@ -202,6 +202,11 @@ enum MWIFIEX_802_11_PRIVACY_FILTER { #define MWIFIEX_DEF_AMPDU IEEE80211_HT_AMPDU_PARM_FACTOR +#define GET_RXSTBC(x) (x & IEEE80211_HT_CAP_RX_STBC) +#define MWIFIEX_RX_STBC1 0x0100 +#define MWIFIEX_RX_STBC12 0x0200 +#define MWIFIEX_RX_STBC123 0x0300 + /* dev_cap bitmap * BIT * 0-16 reserved diff --git a/drivers/net/wireless/mwifiex/uap_cmd.c b/drivers/net/wireless/mwifiex/uap_cmd.c index a6a6a53cda40..9be6544bdded 100644 --- a/drivers/net/wireless/mwifiex/uap_cmd.c +++ b/drivers/net/wireless/mwifiex/uap_cmd.c @@ -159,6 +159,7 @@ mwifiex_set_ht_params(struct mwifiex_private *priv, struct cfg80211_ap_settings *params) { const u8 *ht_ie; + u16 cap_info; if (!ISSUPP_11NENABLED(priv->adapter->fw_cap_info)) return; @@ -168,6 +169,25 @@ mwifiex_set_ht_params(struct mwifiex_private *priv, if (ht_ie) { memcpy(&bss_cfg->ht_cap, ht_ie + 2, sizeof(struct ieee80211_ht_cap)); + cap_info = le16_to_cpu(bss_cfg->ht_cap.cap_info); + memset(&bss_cfg->ht_cap.mcs, 0, + priv->adapter->number_of_antenna); + switch (GET_RXSTBC(cap_info)) { + case MWIFIEX_RX_STBC1: + /* HT_CAP 1X1 mode */ + memset(&bss_cfg->ht_cap.mcs, 0xff, 1); + break; + case MWIFIEX_RX_STBC12: /* fall through */ + case MWIFIEX_RX_STBC123: + /* HT_CAP 2X2 mode */ + memset(&bss_cfg->ht_cap.mcs, 0xff, 2); + break; + default: + dev_warn(priv->adapter->dev, + "Unsupported RX-STBC, default to 2x2\n"); + memset(&bss_cfg->ht_cap.mcs, 0xff, 2); + break; + } priv->ap_11n_enabled = 1; } else { memset(&bss_cfg->ht_cap , 0, sizeof(struct ieee80211_ht_cap)); -- GitLab