mwifiex: add support to configure VHT for AP mode

Currently, default VHT configuration from the firmware is used
for the VHT operations. Adding vhtcfg command to configure the
firmware based on input received from cfg.

Enable VHT for AP mode only when cfg80211_ap_settings has a
VHT IE i.e., when ieee80211ac is set to 1 in the hostapd.conf.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/uap_cmd.c b/drivers/net/wireless/mwifiex/uap_cmd.c
index 6e76a15a8950..b04b1db29100 100644
--- a/drivers/net/wireless/mwifiex/uap_cmd.c
+++ b/drivers/net/wireless/mwifiex/uap_cmd.c
@@ -18,6 +18,7 @@
  */
 
 #include "main.h"
+#include "11ac.h"
 
 /* This function parses security related parameters from cfg80211_ap_settings
  * and sets into FW understandable bss_config structure.
@@ -177,6 +178,60 @@ mwifiex_set_ht_params(struct mwifiex_private *priv,
 	return;
 }
 
+/* This function updates 11ac related parameters from IE
+ * and sets them into bss_config structure.
+ */
+void mwifiex_set_vht_params(struct mwifiex_private *priv,
+			    struct mwifiex_uap_bss_param *bss_cfg,
+			    struct cfg80211_ap_settings *params)
+{
+	const u8 *vht_ie;
+
+	vht_ie = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, params->beacon.tail,
+				  params->beacon.tail_len);
+	if (vht_ie) {
+		memcpy(&bss_cfg->vht_cap, vht_ie + 2,
+		       sizeof(struct ieee80211_vht_cap));
+		priv->ap_11ac_enabled = 1;
+	} else {
+		priv->ap_11ac_enabled = 0;
+	}
+
+	return;
+}
+
+/* Enable VHT only when cfg80211_ap_settings has VHT IE.
+ * Otherwise disable VHT.
+ */
+void mwifiex_set_vht_width(struct mwifiex_private *priv,
+			   enum nl80211_chan_width width,
+			   bool ap_11ac_enable)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct mwifiex_11ac_vht_cfg vht_cfg;
+
+	vht_cfg.band_config = VHT_CFG_5GHZ;
+	vht_cfg.cap_info = adapter->hw_dot_11ac_dev_cap;
+
+	if (!ap_11ac_enable) {
+		vht_cfg.mcs_tx_set = DISABLE_VHT_MCS_SET;
+		vht_cfg.mcs_rx_set = DISABLE_VHT_MCS_SET;
+	} else {
+		vht_cfg.mcs_tx_set = DEFAULT_VHT_MCS_SET;
+		vht_cfg.mcs_rx_set = DEFAULT_VHT_MCS_SET;
+	}
+
+	vht_cfg.misc_config  = VHT_CAP_UAP_ONLY;
+
+	if (ap_11ac_enable && width >= NL80211_CHAN_WIDTH_80)
+		vht_cfg.misc_config |= VHT_BW_80_160_80P80;
+
+	mwifiex_send_cmd_sync(priv, HostCmd_CMD_11AC_CFG,
+			      HostCmd_ACT_GEN_SET, 0, &vht_cfg);
+
+	return;
+}
+
 /* This function finds supported rates IE from beacon parameter and sets
  * these rates into bss_config structure.
  */