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From: Avinash Patil <patila@marvell.com>
To: <linux-wireless@vger.kernel.org>
Cc: <akarwar@marvell.com>, <cluo@marvell.com>, <gaoqs@marvell.com>,
	Avinash Patil <patila@marvell.com>
Subject: [PATCH v2 10/10] mwifiex: 11h handling for AP interface
Date: Wed, 28 Jan 2015 15:54:25 +0530	[thread overview]
Message-ID: <1422440665-3940-11-git-send-email-patila@marvell.com> (raw)
In-Reply-To: <1422440665-3940-1-git-send-email-patila@marvell.com>

This patch enables 11h extensions in FW upon detecting DFS
channel in start radar detection/channel switch handlers.
Patch also takes care of disabling 11h when non DFS channels
are to be set during start_ap handler.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Qingshui Gao <gaoqs@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
---
 drivers/net/wireless/mwifiex/11h.c      | 18 +++++++++++++++++-
 drivers/net/wireless/mwifiex/cfg80211.c | 22 ++++++++++++++++++++++
 drivers/net/wireless/mwifiex/decl.h     |  5 +++++
 drivers/net/wireless/mwifiex/fw.h       |  2 ++
 drivers/net/wireless/mwifiex/init.c     |  2 ++
 drivers/net/wireless/mwifiex/main.h     |  5 +++++
 6 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mwifiex/11h.c b/drivers/net/wireless/mwifiex/11h.c
index d794686..3ab87a8 100644
--- a/drivers/net/wireless/mwifiex/11h.c
+++ b/drivers/net/wireless/mwifiex/11h.c
@@ -21,6 +21,16 @@
 #include "fw.h"
 
 
+void mwifiex_init_11h_params(struct mwifiex_private *priv)
+{
+	priv->state_11h.is_11h_enabled = true;
+	priv->state_11h.is_11h_active = false;
+}
+
+inline int mwifiex_is_11h_active(struct mwifiex_private *priv)
+{
+	return priv->state_11h.is_11h_active;
+}
 /* This function appends 11h info to a buffer while joining an
  * infrastructure BSS
  */
@@ -69,10 +79,14 @@ mwifiex_11h_process_infra_join(struct mwifiex_private *priv, u8 **buffer,
 }
 
 /* Enable or disable the 11h extensions in the firmware */
-static int mwifiex_11h_activate(struct mwifiex_private *priv, bool flag)
+int mwifiex_11h_activate(struct mwifiex_private *priv, bool flag)
 {
 	u32 enable = flag;
 
+	/* enable master mode radar detection on AP interface */
+	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) && enable)
+		enable |= MWIFIEX_MASTER_RADAR_DET_MASK;
+
 	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 				HostCmd_ACT_GEN_SET, DOT11H_I, &enable, true);
 }
@@ -91,11 +105,13 @@ void mwifiex_11h_process_join(struct mwifiex_private *priv, u8 **buffer,
 		 * bit
 		 */
 		mwifiex_11h_activate(priv, true);
+		priv->state_11h.is_11h_active = true;
 		bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_SPECTRUM_MGMT;
 		mwifiex_11h_process_infra_join(priv, buffer, bss_desc);
 	} else {
 		/* Deactivate 11h functions in the firmware */
 		mwifiex_11h_activate(priv, false);
+		priv->state_11h.is_11h_active = false;
 		bss_desc->cap_info_bitmap &= ~WLAN_CAPABILITY_SPECTRUM_MGMT;
 	}
 }
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 2d1ea93..41c8e25 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1742,6 +1742,18 @@ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
 
 	mwifiex_set_wmm_params(priv, bss_cfg, params);
 
+	if (mwifiex_is_11h_active(priv) &&
+	    !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
+					   priv->bss_mode)) {
+		dev_dbg(priv->adapter->dev, "Disable 11h extensions in FW\n");
+		if (mwifiex_11h_activate(priv, false)) {
+			dev_err(priv->adapter->dev,
+				"Failed to disable 11h extensions!!");
+			return -1;
+		}
+		priv->state_11h.is_11h_active = true;
+	}
+
 	if (mwifiex_config_start_uap(priv, bss_cfg)) {
 		wiphy_err(wiphy, "Failed to start AP\n");
 		kfree(bss_cfg);
@@ -3209,6 +3221,16 @@ mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
 		return -EBUSY;
 	}
 
+	if (!mwifiex_is_11h_active(priv)) {
+		dev_dbg(priv->adapter->dev, "Enable 11h extensions in FW\n");
+		if (mwifiex_11h_activate(priv, true)) {
+			dev_err(priv->adapter->dev,
+				"Failed to activate 11h extensions!!");
+			return -1;
+		}
+		priv->state_11h.is_11h_active = true;
+	}
+
 	memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
 	radar_params.chandef = chandef;
 	radar_params.cac_time_ms = cac_time_ms;
diff --git a/drivers/net/wireless/mwifiex/decl.h b/drivers/net/wireless/mwifiex/decl.h
index 68aed4e..88d0ead 100644
--- a/drivers/net/wireless/mwifiex/decl.h
+++ b/drivers/net/wireless/mwifiex/decl.h
@@ -248,4 +248,9 @@ struct mwifiex_radar_params {
 	struct cfg80211_chan_def *chandef;
 	u32 cac_time_ms;
 } __packed;
+
+struct mwifiex_11h_intf_state {
+	bool is_11h_enabled;
+	bool is_11h_active;
+} __packed;
 #endif /* !_MWIFIEX_DECL_H_ */
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index 6d433227..df553e8 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -534,6 +534,8 @@ enum P2P_MODES {
 
 #define MWIFIEX_FW_V15		   15
 
+#define MWIFIEX_MASTER_RADAR_DET_MASK BIT(1)
+
 struct mwifiex_ie_types_header {
 	__le16 type;
 	__le16 len;
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index aa239a8..b77ba74 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -152,6 +152,8 @@ int mwifiex_init_priv(struct mwifiex_private *priv)
 	priv->check_tdls_tx = false;
 	memcpy(priv->tos_to_tid_inv, tos_to_tid_inv, MAX_NUM_TID);
 
+	mwifiex_init_11h_params(priv);
+
 	return mwifiex_add_bss_prio_tbl(priv);
 }
 
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 599698c..f0a6af1 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -595,6 +595,7 @@ struct mwifiex_private {
 	struct workqueue_struct *dfs_chan_sw_workqueue;
 	struct delayed_work dfs_chan_sw_work;
 	struct cfg80211_beacon_data beacon_after;
+	struct mwifiex_11h_intf_state state_11h;
 };
 
 enum mwifiex_ba_status {
@@ -1337,6 +1338,10 @@ int mwifiex_config_start_uap(struct mwifiex_private *priv,
 void mwifiex_uap_del_sta_data(struct mwifiex_private *priv,
 			      struct mwifiex_sta_node *node);
 
+void mwifiex_init_11h_params(struct mwifiex_private *priv);
+int mwifiex_is_11h_active(struct mwifiex_private *priv);
+int mwifiex_11h_activate(struct mwifiex_private *priv, bool flag);
+
 void mwifiex_11h_process_join(struct mwifiex_private *priv, u8 **buffer,
 			      struct mwifiex_bssdescriptor *bss_desc);
 int mwifiex_11h_handle_event_chanswann(struct mwifiex_private *priv);
-- 
1.8.1.4


      parent reply	other threads:[~2015-01-28  4:56 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-28 10:24 [PATCH v2 00/10] mwifiex: DFS support for mwifiex AP Avinash Patil
2015-01-28 10:24 ` [PATCH v2 01/10] mwifiex: do not send regulatory update while starting AP Avinash Patil
2015-01-29  8:26   ` [v2, " Kalle Valo
2015-01-28 10:24 ` [PATCH v2 02/10] mwifiex: store AP configuration in private structure Avinash Patil
2015-01-28 10:24 ` [PATCH v2 03/10] mwifiex: update IEs after AP has started Avinash Patil
2015-01-28 10:24 ` [PATCH v2 04/10] mwifiex: refactor start_ap handler Avinash Patil
2015-01-28 10:24 ` [PATCH v2 05/10] mwifiex: separate function for parsing head and tail IEs Avinash Patil
2015-01-28 10:24 ` [PATCH v2 06/10] mwifiex: add cfg80211 start_radar_detection handler Avinash Patil
2015-01-28 10:24 ` [PATCH v2 07/10] mwifiex: support for channel report for radar detection Avinash Patil
2015-01-28 10:24 ` [PATCH v2 08/10] mwifiex: handle radar detect event from FW Avinash Patil
2015-01-28 10:24 ` [PATCH v2 09/10] mwifiex: channel switch support for mwifiex Avinash Patil
2015-01-28 10:24 ` Avinash Patil [this message]

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