Merge branch 'for-linville' of git://github.com/kvalo/ath6kl

drivers/net/wireless/ath/ath6kl/Makefile

@@ -25,7 +25,8 @@
 obj-$(CONFIG_ATH6KL) += ath6kl_core.o
 ath6kl_core-y += debug.o
 ath6kl_core-y += hif.o
-ath6kl_core-y += htc.o
+ath6kl_core-y += htc_mbox.o
+ath6kl_core-y += htc_pipe.o
 ath6kl_core-y += bmi.o
 ath6kl_core-y += cfg80211.o
 ath6kl_core-y += init.o

drivers/net/wireless/ath/ath6kl/cfg80211.c

@@ -51,6 +51,8 @@
 	.max_power      = 30,                       \
 }
 
+#define DEFAULT_BG_SCAN_PERIOD 60
+
 static struct ieee80211_rate ath6kl_rates[] = {
 	RATETAB_ENT(10, 0x1, 0),
 	RATETAB_ENT(20, 0x2, 0),
@@ -71,7 +73,8 @@ static struct ieee80211_rate ath6kl_rates[] = {
 #define ath6kl_g_rates     (ath6kl_rates + 0)
 #define ath6kl_g_rates_size    12
 
-#define ath6kl_g_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
+#define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20
+#define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
 			IEEE80211_HT_CAP_SGI_20		 | \
 			IEEE80211_HT_CAP_SGI_40)
 
@@ -128,7 +131,7 @@ static struct ieee80211_supported_band ath6kl_band_5ghz = {
 	.channels = ath6kl_5ghz_a_channels,
 	.n_bitrates = ath6kl_a_rates_size,
 	.bitrates = ath6kl_a_rates,
-	.ht_cap.cap = ath6kl_g_htcap,
+	.ht_cap.cap = ath6kl_a_htcap,
 	.ht_cap.ht_supported = true,
 };
 
@@ -609,6 +612,17 @@ static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
 					vif->req_bssid, vif->ch_hint,
 					ar->connect_ctrl_flags, nw_subtype);
 
+	/* disable background scan if period is 0 */
+	if (sme->bg_scan_period == 0)
+		sme->bg_scan_period = 0xffff;
+
+	/* configure default value if not specified */
+	if (sme->bg_scan_period == -1)
+		sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
+
+	ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0,
+				  sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
+
 	up(&ar->sem);
 
 	if (status == -EINVAL) {
@@ -943,6 +957,8 @@ static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
 	if (test_bit(CONNECTED, &vif->flags))
 		force_fg_scan = 1;
 
+	vif->scan_req = request;
+
 	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
 		     ar->fw_capabilities)) {
 		/*
@@ -965,10 +981,10 @@ static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
 						ATH6KL_FG_SCAN_INTERVAL,
 						n_channels, channels);
 	}
-	if (ret)
+	if (ret) {
 		ath6kl_err("wmi_startscan_cmd failed\n");
-	else
+		vif->scan_req = NULL;
-		vif->scan_req = request;
+	}
 
 	kfree(channels);
 
@@ -1438,9 +1454,38 @@ static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
 					struct vif_params *params)
 {
 	struct ath6kl_vif *vif = netdev_priv(ndev);
+	int i;
 
 	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
 
+	/*
+	 * Don't bring up p2p on an interface which is not initialized
+	 * for p2p operation where fw does not have capability to switch
+	 * dynamically between non-p2p and p2p type interface.
+	 */
+	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
+		      vif->ar->fw_capabilities) &&
+	    (type == NL80211_IFTYPE_P2P_CLIENT ||
+	     type == NL80211_IFTYPE_P2P_GO)) {
+		if (vif->ar->vif_max == 1) {
+			if (vif->fw_vif_idx != 0)
+				return -EINVAL;
+			else
+				goto set_iface_type;
+		}
+
+		for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) {
+			if (i == vif->fw_vif_idx)
+				break;
+		}
+
+		if (i == vif->ar->vif_max) {
+			ath6kl_err("Invalid interface to bring up P2P\n");
+			return -EINVAL;
+		}
+	}
+
+set_iface_type:
 	switch (type) {
 	case NL80211_IFTYPE_STATION:
 		vif->next_mode = INFRA_NETWORK;
@@ -1926,12 +1971,61 @@ static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
 	return 0;
 }
 
+static int is_hsleep_mode_procsed(struct ath6kl_vif *vif)
+{
+	return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
+}
+
+static bool is_ctrl_ep_empty(struct ath6kl *ar)
+{
+	return !ar->tx_pending[ar->ctrl_ep];
+}
+
+static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif)
+{
+	int ret, left;
+
+	clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
+
+	ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
+						 ATH6KL_HOST_MODE_ASLEEP);
+	if (ret)
+		return ret;
+
+	left = wait_event_interruptible_timeout(ar->event_wq,
+						is_hsleep_mode_procsed(vif),
+						WMI_TIMEOUT);
+	if (left == 0) {
+		ath6kl_warn("timeout, didn't get host sleep cmd processed event\n");
+		ret = -ETIMEDOUT;
+	} else if (left < 0) {
+		ath6kl_warn("error while waiting for host sleep cmd processed event %d\n",
+			    left);
+		ret = left;
+	}
+
+	if (ar->tx_pending[ar->ctrl_ep]) {
+		left = wait_event_interruptible_timeout(ar->event_wq,
+							is_ctrl_ep_empty(ar),
+							WMI_TIMEOUT);
+		if (left == 0) {
+			ath6kl_warn("clear wmi ctrl data timeout\n");
+			ret = -ETIMEDOUT;
+		} else if (left < 0) {
+			ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
+			ret = left;
+		}
+	}
+
+	return ret;
+}
+
 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
 {
 	struct in_device *in_dev;
 	struct in_ifaddr *ifa;
 	struct ath6kl_vif *vif;
-	int ret, left;
+	int ret;
 	u32 filter = 0;
 	u16 i, bmiss_time;
 	u8 index = 0;
@@ -2032,39 +2126,11 @@ static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
 	if (ret)
 		return ret;
 
-	clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
+	ret = ath6kl_cfg80211_host_sleep(ar, vif);
-
-	ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
-						 ATH6KL_HOST_MODE_ASLEEP);
 	if (ret)
 		return ret;
 
-	left = wait_event_interruptible_timeout(ar->event_wq,
+	return 0;
-			test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags),
-			WMI_TIMEOUT);
-	if (left == 0) {
-		ath6kl_warn("timeout, didn't get host sleep cmd "
-			    "processed event\n");
-		ret = -ETIMEDOUT;
-	} else if (left < 0) {
-		ath6kl_warn("error while waiting for host sleep cmd "
-			    "processed event %d\n", left);
-		ret = left;
-	}
-
-	if (ar->tx_pending[ar->ctrl_ep]) {
-		left = wait_event_interruptible_timeout(ar->event_wq,
-				ar->tx_pending[ar->ctrl_ep] == 0, WMI_TIMEOUT);
-		if (left == 0) {
-			ath6kl_warn("clear wmi ctrl data timeout\n");
-			ret = -ETIMEDOUT;
-		} else if (left < 0) {
-			ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
-			ret = left;
-		}
-	}
-
-	return ret;
 }
 
 static int ath6kl_wow_resume(struct ath6kl *ar)
@@ -2111,10 +2177,82 @@ static int ath6kl_wow_resume(struct ath6kl *ar)
 	return 0;
 }
 
+static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar)
+{
+	struct ath6kl_vif *vif;
+	int ret;
+
+	vif = ath6kl_vif_first(ar);
+	if (!vif)
+		return -EIO;
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	ath6kl_cfg80211_stop_all(ar);
+
+	/* Save the current power mode before enabling power save */
+	ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
+
+	ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
+	if (ret)
+		return ret;
+
+	/* Disable WOW mode */
+	ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
+					  ATH6KL_WOW_MODE_DISABLE,
+					  0, 0);
+	if (ret)
+		return ret;
+
+	/* Flush all non control pkts in TX path */
+	ath6kl_tx_data_cleanup(ar);
+
+	ret = ath6kl_cfg80211_host_sleep(ar, vif);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar)
+{
+	struct ath6kl_vif *vif;
+	int ret;
+
+	vif = ath6kl_vif_first(ar);
+
+	if (!vif)
+		return -EIO;
+
+	if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
+		ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
+					       ar->wmi->saved_pwr_mode);
+		if (ret)
+			return ret;
+	}
+
+	ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
+						 ATH6KL_HOST_MODE_AWAKE);
+	if (ret)
+		return ret;
+
+	ar->state = ATH6KL_STATE_ON;
+
+	/* Reset scan parameter to default values */
+	ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
+					0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
 int ath6kl_cfg80211_suspend(struct ath6kl *ar,
 			    enum ath6kl_cfg_suspend_mode mode,
 			    struct cfg80211_wowlan *wow)
 {
+	struct ath6kl_vif *vif;
 	enum ath6kl_state prev_state;
 	int ret;
 
@@ -2139,15 +2277,12 @@ int ath6kl_cfg80211_suspend(struct ath6kl *ar,
 
 	case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
 
-		ath6kl_cfg80211_stop_all(ar);
+		ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n");
 
-		/* save the current power mode before enabling power save */
+		ret = ath6kl_cfg80211_deepsleep_suspend(ar);
-		ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
-
-		ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
 		if (ret) {
-			ath6kl_warn("wmi powermode command failed during suspend: %d\n",
+			ath6kl_err("deepsleep suspend failed: %d\n", ret);
-				    ret);
+			return ret;
 		}
 
 		ar->state = ATH6KL_STATE_DEEPSLEEP;
@@ -2187,6 +2322,9 @@ int ath6kl_cfg80211_suspend(struct ath6kl *ar,
 		break;
 	}
 
+	list_for_each_entry(vif, &ar->vif_list, list)
+		ath6kl_cfg80211_scan_complete_event(vif, true);
+
 	return 0;
 }
 EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
@@ -2208,17 +2346,13 @@ int ath6kl_cfg80211_resume(struct ath6kl *ar)
 		break;
 
 	case ATH6KL_STATE_DEEPSLEEP:
-		if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
+		ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n");
-			ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
+
-						       ar->wmi->saved_pwr_mode);
+		ret = ath6kl_cfg80211_deepsleep_resume(ar);
-			if (ret) {
+		if (ret) {
-				ath6kl_warn("wmi powermode command failed during resume: %d\n",
+			ath6kl_warn("deep sleep resume failed: %d\n", ret);
-					    ret);
+			return ret;
-			}
 		}
-
-		ar->state = ATH6KL_STATE_ON;
-
 		break;
 
 	case ATH6KL_STATE_CUTPOWER:
@@ -2292,31 +2426,25 @@ void ath6kl_check_wow_status(struct ath6kl *ar)
 }
 #endif
 
-static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev,
+static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band,
-			      struct ieee80211_channel *chan,
+			    bool ht_enable)
-			      enum nl80211_channel_type channel_type)
 {
-	struct ath6kl_vif *vif;
+	struct ath6kl_htcap *htcap = &vif->htcap;
 
-	/*
+	if (htcap->ht_enable == ht_enable)
-	 * 'dev' could be NULL if a channel change is required for the hardware
+		return 0;
-	 * device itself, instead of a particular VIF.
-	 *
-	 * FIXME: To be handled properly when monitor mode is supported.
-	 */
-	if (!dev)
-		return -EBUSY;
 
-	vif = netdev_priv(dev);
+	if (ht_enable) {
+		/* Set default ht capabilities */
+		htcap->ht_enable = true;
+		htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ?
+				   ath6kl_g_htcap : ath6kl_a_htcap;
+		htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
+	} else /* Disable ht */
+		memset(htcap, 0, sizeof(*htcap));
 
-	if (!ath6kl_cfg80211_ready(vif))
+	return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx,
-		return -EIO;
+					band, htcap);
-
-	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n",
-		   __func__, chan->center_freq, chan->hw_value);
-	vif->next_chan = chan->center_freq;
-
-	return 0;
 }
 
 static bool ath6kl_is_p2p_ie(const u8 *pos)
@@ -2393,6 +2521,81 @@ static int ath6kl_set_ies(struct ath6kl_vif *vif,
 	return 0;
 }
 
+static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev,
+			      struct ieee80211_channel *chan,
+			      enum nl80211_channel_type channel_type)
+{
+	struct ath6kl_vif *vif;
+
+	/*
+	 * 'dev' could be NULL if a channel change is required for the hardware
+	 * device itself, instead of a particular VIF.
+	 *
+	 * FIXME: To be handled properly when monitor mode is supported.
+	 */
+	if (!dev)
+		return -EBUSY;
+
+	vif = netdev_priv(dev);
+
+	if (!ath6kl_cfg80211_ready(vif))
+		return -EIO;
+
+	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n",
+		   __func__, chan->center_freq, chan->hw_value);
+	vif->next_chan = chan->center_freq;
+	vif->next_ch_type = channel_type;
+	vif->next_ch_band = chan->band;
+
+	return 0;
+}
+
+static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon,
+				u8 *rsn_capab)
+{
+	const u8 *rsn_ie;
+	size_t rsn_ie_len;
+	u16 cnt;
+
+	if (!beacon->tail)
+		return -EINVAL;
+
+	rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len);
+	if (!rsn_ie)
+		return -EINVAL;
+
+	rsn_ie_len = *(rsn_ie + 1);
+	/* skip element id and length */
+	rsn_ie += 2;
+
+	/* skip version, group cipher */
+	if (rsn_ie_len < 6)
+		return -EINVAL;
+	rsn_ie +=  6;
+	rsn_ie_len -= 6;
+
+	/* skip pairwise cipher suite */
+	if (rsn_ie_len < 2)
+		return -EINVAL;
+	cnt = *((u16 *) rsn_ie);
+	rsn_ie += (2 + cnt * 4);
+	rsn_ie_len -= (2 + cnt * 4);
+
+	/* skip akm suite */
+	if (rsn_ie_len < 2)
+		return -EINVAL;
+	cnt = *((u16 *) rsn_ie);
+	rsn_ie += (2 + cnt * 4);
+	rsn_ie_len -= (2 + cnt * 4);
+
+	if (rsn_ie_len < 2)
+		return -EINVAL;
+
+	memcpy(rsn_capab, rsn_ie, 2);
+
+	return 0;
+}
+
 static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
 			   struct cfg80211_ap_settings *info)
 {
@@ -2405,6 +2608,7 @@ static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	struct wmi_connect_cmd p;
 	int res;
 	int i, ret;
+	u16 rsn_capab = 0;
 
 	ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__);
 
@@ -2534,6 +2738,34 @@ static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
 		p.nw_subtype = SUBTYPE_NONE;
 	}
 
+	if (info->inactivity_timeout) {
+		res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx,
+						  info->inactivity_timeout);
+		if (res < 0)
+			return res;
+	}
+
+	if (ath6kl_set_htcap(vif, vif->next_ch_band,
+			     vif->next_ch_type != NL80211_CHAN_NO_HT))
+		return -EIO;
+
+	/*
+	 * Get the PTKSA replay counter in the RSN IE. Supplicant
+	 * will use the RSN IE in M3 message and firmware has to
+	 * advertise the same in beacon/probe response. Send
+	 * the complete RSN IE capability field to firmware
+	 */
+	if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) &&
+	    test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
+		     ar->fw_capabilities)) {
+		res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
+					    WLAN_EID_RSN, WMI_RSN_IE_CAPB,
+					    (const u8 *) &rsn_capab,
+					    sizeof(rsn_capab));
+		if (res < 0)
+			return res;
+	}
+
 	res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
 	if (res < 0)
 		return res;
@@ -2568,6 +2800,13 @@ static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 	ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
 	clear_bit(CONNECTED, &vif->flags);
 
+	/* Restore ht setting in firmware */
+	if (ath6kl_set_htcap(vif, IEEE80211_BAND_2GHZ, true))
+		return -EIO;
+
+	if (ath6kl_set_htcap(vif, IEEE80211_BAND_5GHZ, true))
+		return -EIO;
+
 	return 0;
 }
 
@@ -2749,6 +2988,21 @@ static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif,
 	return false;
 }
 
+/* Check if SSID length is greater than DIRECT- */
+static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
+{
+	const struct ieee80211_mgmt *mgmt;
+	mgmt = (const struct ieee80211_mgmt *) buf;
+
+	/* variable[1] contains the SSID tag length */
+	if (buf + len >= &mgmt->u.probe_resp.variable[1] &&
+	    (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) {
+		return true;
+	}
+
+	return false;
+}
+
 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
 			  struct ieee80211_channel *chan, bool offchan,
 			  enum nl80211_channel_type channel_type,
@@ -2763,11 +3017,11 @@ static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
 	bool more_data, queued;
 
 	mgmt = (const struct ieee80211_mgmt *) buf;
-	if (buf + len >= mgmt->u.probe_resp.variable &&
+	if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
-	    vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
+	    ieee80211_is_probe_resp(mgmt->frame_control) &&
-	    ieee80211_is_probe_resp(mgmt->frame_control)) {
+	    ath6kl_is_p2p_go_ssid(buf, len)) {
 		/*
-		 * Send Probe Response frame in AP mode using a separate WMI
+		 * Send Probe Response frame in GO mode using a separate WMI
 		 * command to allow the target to fill in the generic IEs.
 		 */
 		*cookie = 0; /* TX status not supported */
@@ -2835,6 +3089,8 @@ static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
 	if (vif->sme_state != SME_DISCONNECTED)
 		return -EBUSY;
 
+	ath6kl_cfg80211_scan_complete_event(vif, true);
+
 	for (i = 0; i < ar->wiphy->max_sched_scan_ssids; i++) {
 		ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
 					  i, DISABLE_SSID_FLAG,
@@ -3096,6 +3352,7 @@ struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name,
 	vif->next_mode = nw_type;
 	vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL;
 	vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME;
+	vif->htcap.ht_enable = true;
 
 	memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
 	if (fw_vif_idx != 0)
@@ -3183,6 +3440,10 @@ int ath6kl_cfg80211_init(struct ath6kl *ar)
 	if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities))
 		ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
 
+	if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,
+		     ar->fw_capabilities))
+		ar->wiphy->features = NL80211_FEATURE_INACTIVITY_TIMER;
+
 	ar->wiphy->probe_resp_offload =
 		NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
 		NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |

drivers/net/wireless/ath/ath6kl/common.h

@@ -22,7 +22,8 @@
 
 #define ATH6KL_MAX_IE			256
 
-extern int ath6kl_printk(const char *level, const char *fmt, ...);
+extern __printf(2, 3)
+int ath6kl_printk(const char *level, const char *fmt, ...);
 
 /*
  * Reflects the version of binary interface exposed by ATH6KL target
@@ -77,6 +78,7 @@ enum crypto_type {
 
 struct htc_endpoint_credit_dist;
 struct ath6kl;
+struct ath6kl_htcap;
 enum htc_credit_dist_reason;
 struct ath6kl_htc_credit_info;
 

drivers/net/wireless/ath/ath6kl/core.c

@@ -20,9 +20,11 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/export.h>
+#include <linux/vmalloc.h>
 
 #include "debug.h"
 #include "hif-ops.h"
+#include "htc-ops.h"
 #include "cfg80211.h"
 
 unsigned int debug_mask;
@@ -39,12 +41,36 @@ module_param(uart_debug, uint, 0644);
 module_param(ath6kl_p2p, uint, 0644);
 module_param(testmode, uint, 0644);
 
-int ath6kl_core_init(struct ath6kl *ar)
+void ath6kl_core_tx_complete(struct ath6kl *ar, struct sk_buff *skb)
+{
+	ath6kl_htc_tx_complete(ar, skb);
+}
+EXPORT_SYMBOL(ath6kl_core_tx_complete);
+
+void ath6kl_core_rx_complete(struct ath6kl *ar, struct sk_buff *skb, u8 pipe)
+{
+	ath6kl_htc_rx_complete(ar, skb, pipe);
+}
+EXPORT_SYMBOL(ath6kl_core_rx_complete);
+
+int ath6kl_core_init(struct ath6kl *ar, enum ath6kl_htc_type htc_type)
 {
 	struct ath6kl_bmi_target_info targ_info;
 	struct net_device *ndev;
 	int ret = 0, i;
 
+	switch (htc_type) {
+	case ATH6KL_HTC_TYPE_MBOX:
+		ath6kl_htc_mbox_attach(ar);
+		break;
+	case ATH6KL_HTC_TYPE_PIPE:
+		ath6kl_htc_pipe_attach(ar);
+		break;
+	default:
+		WARN_ON(1);
+		return -ENOMEM;
+	}
+
 	ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");
 	if (!ar->ath6kl_wq)
 		return -ENOMEM;
@@ -280,7 +306,7 @@ void ath6kl_core_cleanup(struct ath6kl *ar)
 
 	kfree(ar->fw_board);
 	kfree(ar->fw_otp);
-	kfree(ar->fw);
+	vfree(ar->fw);
 	kfree(ar->fw_patch);
 	kfree(ar->fw_testscript);
 

drivers/net/wireless/ath/ath6kl/core.h

@@ -91,6 +91,15 @@ enum ath6kl_fw_capability {
 	 */
 	ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
 
+	/*
+	 * Firmware has support to cleanup inactive stations
+	 * in AP mode.
+	 */
+	ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,
+
+	/* Firmware has support to override rsn cap of rsn ie */
+	ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
+
 	/* this needs to be last */
 	ATH6KL_FW_CAPABILITY_MAX,
 };
@@ -205,6 +214,8 @@ struct ath6kl_fw_ie {
 #define ATH6KL_CONF_ENABLE_TX_BURST		BIT(3)
 #define ATH6KL_CONF_UART_DEBUG			BIT(4)
 
+#define P2P_WILDCARD_SSID_LEN			7 /* DIRECT- */
+
 enum wlan_low_pwr_state {
 	WLAN_POWER_STATE_ON,
 	WLAN_POWER_STATE_CUT_PWR,
@@ -454,6 +465,11 @@ enum ath6kl_hif_type {
 	ATH6KL_HIF_TYPE_USB,
 };
 
+enum ath6kl_htc_type {
+	ATH6KL_HTC_TYPE_MBOX,
+	ATH6KL_HTC_TYPE_PIPE,
+};
+
 /* Max number of filters that hw supports */
 #define ATH6K_MAX_MC_FILTERS_PER_LIST 7
 struct ath6kl_mc_filter {
@@ -461,6 +477,12 @@ struct ath6kl_mc_filter {
 	char hw_addr[ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE];
 };
 
+struct ath6kl_htcap {
+	bool ht_enable;
+	u8 ampdu_factor;
+	unsigned short cap_info;
+};
+
 /*
  * Driver's maximum limit, note that some firmwares support only one vif
  * and the runtime (current) limit must be checked from ar->vif_max.
@@ -509,6 +531,7 @@ struct ath6kl_vif {
 	struct ath6kl_wep_key wep_key_list[WMI_MAX_KEY_INDEX + 1];
 	struct ath6kl_key keys[WMI_MAX_KEY_INDEX + 1];
 	struct aggr_info *aggr_cntxt;
+	struct ath6kl_htcap htcap;
 
 	struct timer_list disconnect_timer;
 	struct timer_list sched_scan_timer;
@@ -521,6 +544,8 @@ struct ath6kl_vif {
 	u32 send_action_id;
 	bool probe_req_report;
 	u16 next_chan;
+	enum nl80211_channel_type next_ch_type;
+	enum ieee80211_band next_ch_band;
 	u16 assoc_bss_beacon_int;
 	u16 listen_intvl_t;
 	u16 bmiss_time_t;
@@ -568,6 +593,7 @@ struct ath6kl {
 
 	struct ath6kl_bmi bmi;
 	const struct ath6kl_hif_ops *hif_ops;
+	const struct ath6kl_htc_ops *htc_ops;
 	struct wmi *wmi;
 	int tx_pending[ENDPOINT_MAX];
 	int total_tx_data_pend;
@@ -746,7 +772,8 @@ void init_netdev(struct net_device *dev);
 void ath6kl_cookie_init(struct ath6kl *ar);
 void ath6kl_cookie_cleanup(struct ath6kl *ar);
 void ath6kl_rx(struct htc_target *target, struct htc_packet *packet);
-void ath6kl_tx_complete(void *context, struct list_head *packet_queue);
+void ath6kl_tx_complete(struct htc_target *context,
+			struct list_head *packet_queue);
 enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target,
 					       struct htc_packet *packet);
 void ath6kl_stop_txrx(struct ath6kl *ar);
@@ -821,8 +848,11 @@ int ath6kl_init_hw_params(struct ath6kl *ar);
 
 void ath6kl_check_wow_status(struct ath6kl *ar);
 
+void ath6kl_core_tx_complete(struct ath6kl *ar, struct sk_buff *skb);
+void ath6kl_core_rx_complete(struct ath6kl *ar, struct sk_buff *skb, u8 pipe);
+
 struct ath6kl *ath6kl_core_create(struct device *dev);
-int ath6kl_core_init(struct ath6kl *ar);
+int ath6kl_core_init(struct ath6kl *ar, enum ath6kl_htc_type htc_type);
 void ath6kl_core_cleanup(struct ath6kl *ar);
 void ath6kl_core_destroy(struct ath6kl *ar);
 

drivers/net/wireless/ath/ath6kl/debug.c

@@ -616,6 +616,12 @@ static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
 			 "Num disconnects", tgt_stats->cs_discon_cnt);
 	len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
 			 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi);
+	len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
+			 "ARP pkt received", tgt_stats->arp_received);
+	len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
+			 "ARP pkt matched", tgt_stats->arp_matched);
+	len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
+			 "ARP pkt replied", tgt_stats->arp_replied);
 
 	if (len > buf_len)
 		len = buf_len;

drivers/net/wireless/ath/ath6kl/debug.h

@@ -43,6 +43,7 @@ enum ATH6K_DEBUG_MASK {
 	ATH6KL_DBG_WMI_DUMP	= BIT(19),
 	ATH6KL_DBG_SUSPEND	= BIT(20),
 	ATH6KL_DBG_USB		= BIT(21),
+	ATH6KL_DBG_USB_BULK	= BIT(22),
 	ATH6KL_DBG_ANY	        = 0xffffffff  /* enable all logs */
 };
 

drivers/net/wireless/ath/ath6kl/hif-ops.h

@@ -150,4 +150,38 @@ static inline void ath6kl_hif_stop(struct ath6kl *ar)
 	ar->hif_ops->stop(ar);
 }
 
+static inline int ath6kl_hif_pipe_send(struct ath6kl *ar,
+				       u8 pipe, struct sk_buff *hdr_buf,
+				       struct sk_buff *buf)
+{
+	ath6kl_dbg(ATH6KL_DBG_HIF, "hif pipe send\n");
+
+	return ar->hif_ops->pipe_send(ar, pipe, hdr_buf, buf);
+}
+
+static inline void ath6kl_hif_pipe_get_default(struct ath6kl *ar,
+					       u8 *ul_pipe, u8 *dl_pipe)
+{
+	ath6kl_dbg(ATH6KL_DBG_HIF, "hif pipe get default\n");
+
+	ar->hif_ops->pipe_get_default(ar, ul_pipe, dl_pipe);
+}
+
+static inline int ath6kl_hif_pipe_map_service(struct ath6kl *ar,
+					      u16 service_id, u8 *ul_pipe,
+					      u8 *dl_pipe)
+{
+	ath6kl_dbg(ATH6KL_DBG_HIF, "hif pipe get default\n");
+
+	return ar->hif_ops->pipe_map_service(ar, service_id, ul_pipe, dl_pipe);
+}
+
+static inline u16 ath6kl_hif_pipe_get_free_queue_number(struct ath6kl *ar,
+							u8 pipe)
+{
+	ath6kl_dbg(ATH6KL_DBG_HIF, "hif pipe get free queue number\n");
+
+	return ar->hif_ops->pipe_get_free_queue_number(ar, pipe);
+}
+
 #endif

drivers/net/wireless/ath/ath6kl/hif.h

@@ -256,6 +256,12 @@ struct ath6kl_hif_ops {
 	int (*power_on)(struct ath6kl *ar);
 	int (*power_off)(struct ath6kl *ar);
 	void (*stop)(struct ath6kl *ar);
+	int (*pipe_send)(struct ath6kl *ar, u8 pipe, struct sk_buff *hdr_buf,
+			 struct sk_buff *buf);
+	void (*pipe_get_default)(struct ath6kl *ar, u8 *pipe_ul, u8 *pipe_dl);
+	int (*pipe_map_service)(struct ath6kl *ar, u16 service_id, u8 *pipe_ul,
+				u8 *pipe_dl);
+	u16 (*pipe_get_free_queue_number)(struct ath6kl *ar, u8 pipe);
 };
 
 int ath6kl_hif_setup(struct ath6kl_device *dev);

drivers/net/wireless/ath/ath6kl/htc-ops.h

@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2004-2011 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef HTC_OPS_H
+#define HTC_OPS_H
+
+#include "htc.h"
+#include "debug.h"
+
+static inline void *ath6kl_htc_create(struct ath6kl *ar)
+{
+	return ar->htc_ops->create(ar);
+}
+
+static inline int ath6kl_htc_wait_target(struct htc_target *target)
+{
+	return target->dev->ar->htc_ops->wait_target(target);
+}
+
+static inline int ath6kl_htc_start(struct htc_target *target)
+{
+	return target->dev->ar->htc_ops->start(target);
+}
+
+static inline int ath6kl_htc_conn_service(struct htc_target *target,
+					  struct htc_service_connect_req *req,
+					  struct htc_service_connect_resp *resp)
+{
+	return target->dev->ar->htc_ops->conn_service(target, req, resp);
+}
+
+static inline int ath6kl_htc_tx(struct htc_target *target,
+				struct htc_packet *packet)
+{
+	return target->dev->ar->htc_ops->tx(target, packet);
+}
+
+static inline void ath6kl_htc_stop(struct htc_target *target)
+{
+	return target->dev->ar->htc_ops->stop(target);
+}
+
+static inline void ath6kl_htc_cleanup(struct htc_target *target)
+{
+	return target->dev->ar->htc_ops->cleanup(target);
+}
+
+static inline void ath6kl_htc_flush_txep(struct htc_target *target,
+					 enum htc_endpoint_id endpoint,
+					 u16 tag)
+{
+	return target->dev->ar->htc_ops->flush_txep(target, endpoint, tag);
+}
+
+static inline void ath6kl_htc_flush_rx_buf(struct htc_target *target)
+{
+	return target->dev->ar->htc_ops->flush_rx_buf(target);
+}
+
+static inline void ath6kl_htc_activity_changed(struct htc_target *target,
+					       enum htc_endpoint_id endpoint,
+					       bool active)
+{
+	return target->dev->ar->htc_ops->activity_changed(target, endpoint,
+							  active);
+}
+
+static inline int ath6kl_htc_get_rxbuf_num(struct htc_target *target,
+					   enum htc_endpoint_id endpoint)
+{
+	return target->dev->ar->htc_ops->get_rxbuf_num(target, endpoint);
+}
+
+static inline int ath6kl_htc_add_rxbuf_multiple(struct htc_target *target,
+						struct list_head *pktq)
+{
+	return target->dev->ar->htc_ops->add_rxbuf_multiple(target, pktq);
+}
+
+static inline int ath6kl_htc_credit_setup(struct htc_target *target,
+					  struct ath6kl_htc_credit_info *info)
+{
+	return target->dev->ar->htc_ops->credit_setup(target, info);
+}
+
+static inline void ath6kl_htc_tx_complete(struct ath6kl *ar,
+					  struct sk_buff *skb)
+{
+	ar->htc_ops->tx_complete(ar, skb);
+}
+
+
+static inline void ath6kl_htc_rx_complete(struct ath6kl *ar,
+					  struct sk_buff *skb, u8 pipe)
+{
+	ar->htc_ops->rx_complete(ar, skb, pipe);
+}
+
+
+#endif

drivers/net/wireless/ath/ath6kl/htc.h

@@ -25,6 +25,7 @@
 /* send direction */
 #define HTC_FLAGS_NEED_CREDIT_UPDATE (1 << 0)
 #define HTC_FLAGS_SEND_BUNDLE        (1 << 1)
+#define HTC_FLAGS_TX_FIXUP_NETBUF    (1 << 2)
 
 /* receive direction */
 #define HTC_FLG_RX_UNUSED        (1 << 0)
@@ -56,6 +57,10 @@
 #define HTC_CONN_FLGS_THRESH_LVL_THREE_QUAT	0x2
 #define HTC_CONN_FLGS_REDUCE_CRED_DRIB		0x4
 #define HTC_CONN_FLGS_THRESH_MASK		0x3
+/* disable credit flow control on a specific service */
+#define HTC_CONN_FLGS_DISABLE_CRED_FLOW_CTRL          (1 << 3)
+#define HTC_CONN_FLGS_SET_RECV_ALLOC_SHIFT    8
+#define HTC_CONN_FLGS_SET_RECV_ALLOC_MASK     0xFF00
 
 /* connect response status codes */
 #define HTC_SERVICE_SUCCESS      0
@@ -75,6 +80,7 @@
 #define HTC_RECORD_LOOKAHEAD_BUNDLE 3
 
 #define HTC_SETUP_COMP_FLG_RX_BNDL_EN     (1 << 0)
+#define HTC_SETUP_COMP_FLG_DISABLE_TX_CREDIT_FLOW (1 << 1)
 
 #define MAKE_SERVICE_ID(group, index) \
 	(int)(((int)group << 8) | (int)(index))
@@ -109,6 +115,8 @@
 
 /* HTC operational parameters */
 #define HTC_TARGET_RESPONSE_TIMEOUT        2000	/* in ms */
+#define HTC_TARGET_RESPONSE_POLL_WAIT      10
+#define HTC_TARGET_RESPONSE_POLL_COUNT     200
 #define HTC_TARGET_DEBUG_INTR_MASK         0x01
 #define HTC_TARGET_CREDIT_INTR_MASK        0xF0
 
@@ -128,6 +136,7 @@
 
 #define HTC_RECV_WAIT_BUFFERS        (1 << 0)
 #define HTC_OP_STATE_STOPPING        (1 << 0)
+#define HTC_OP_STATE_SETUP_COMPLETE  (1 << 1)
 
 /*
  * The frame header length and message formats defined herein were selected
@@ -311,6 +320,14 @@ struct htc_packet {
 
 	void (*completion) (struct htc_target *, struct htc_packet *);
 	struct htc_target *context;
+
+	/*
+	 * optimization for network-oriented data, the HTC packet
+	 * can pass the network buffer corresponding to the HTC packet
+	 * lower layers may optimized the transfer knowing this is
+	 * a network buffer
+	 */
+	struct sk_buff *skb;
 };
 
 enum htc_send_full_action {
@@ -319,12 +336,14 @@ enum htc_send_full_action {
 };
 
 struct htc_ep_callbacks {
+	void (*tx_complete) (struct htc_target *, struct htc_packet *);
 	void (*rx) (struct htc_target *, struct htc_packet *);
 	void (*rx_refill) (struct htc_target *, enum htc_endpoint_id endpoint);
 	enum htc_send_full_action (*tx_full) (struct htc_target *,
 					      struct htc_packet *);
 	struct htc_packet *(*rx_allocthresh) (struct htc_target *,
 					      enum htc_endpoint_id, int);
+	void (*tx_comp_multi) (struct htc_target *, struct list_head *);
 	int rx_alloc_thresh;
 	int rx_refill_thresh;
 };
@@ -502,6 +521,13 @@ struct htc_endpoint {
 	u32 conn_flags;
 	struct htc_endpoint_stats ep_st;
 	u16 tx_drop_packet_threshold;
+
+	struct {
+		u8 pipeid_ul;
+		u8 pipeid_dl;
+		struct list_head tx_lookup_queue;
+		bool tx_credit_flow_enabled;
+	} pipe;
 };
 
 struct htc_control_buffer {
@@ -509,6 +535,42 @@ struct htc_control_buffer {
 	u8 *buf;
 };
 
+struct htc_pipe_txcredit_alloc {
+	u16 service_id;
+	u8 credit_alloc;
+};
+
+enum htc_send_queue_result {
+	HTC_SEND_QUEUE_OK = 0,	/* packet was queued */
+	HTC_SEND_QUEUE_DROP = 1,	/* this packet should be dropped */
+};
+
+struct ath6kl_htc_ops {
+	void* (*create)(struct ath6kl *ar);
+	int (*wait_target)(struct htc_target *target);
+	int (*start)(struct htc_target *target);
+	int (*conn_service)(struct htc_target *target,
+			    struct htc_service_connect_req *req,
+			    struct htc_service_connect_resp *resp);
+	int  (*tx)(struct htc_target *target, struct htc_packet *packet);
+	void (*stop)(struct htc_target *target);
+	void (*cleanup)(struct htc_target *target);
+	void (*flush_txep)(struct htc_target *target,
+			   enum htc_endpoint_id endpoint, u16 tag);
+	void (*flush_rx_buf)(struct htc_target *target);
+	void (*activity_changed)(struct htc_target *target,
+				 enum htc_endpoint_id endpoint,
+				 bool active);
+	int (*get_rxbuf_num)(struct htc_target *target,
+			     enum htc_endpoint_id endpoint);
+	int (*add_rxbuf_multiple)(struct htc_target *target,
+				  struct list_head *pktq);
+	int (*credit_setup)(struct htc_target *target,
+			    struct ath6kl_htc_credit_info *cred_info);
+	int (*tx_complete)(struct ath6kl *ar, struct sk_buff *skb);
+	int (*rx_complete)(struct ath6kl *ar, struct sk_buff *skb, u8 pipe);
+};
+
 struct ath6kl_device;
 
 /* our HTC target state */
@@ -557,36 +619,19 @@ struct htc_target {
 
 	/* counts the number of Tx without bundling continously per AC */
 	u32 ac_tx_count[WMM_NUM_AC];
+
+	struct {
+		struct htc_packet *htc_packet_pool;
+		u8 ctrl_response_buf[HTC_MAX_CTRL_MSG_LEN];
+		int ctrl_response_len;
+		bool ctrl_response_valid;
+		struct htc_pipe_txcredit_alloc txcredit_alloc[ENDPOINT_MAX];
+	} pipe;
 };
 
-void *ath6kl_htc_create(struct ath6kl *ar);
-void ath6kl_htc_set_credit_dist(struct htc_target *target,
-				struct ath6kl_htc_credit_info *cred_info,
-				u16 svc_pri_order[], int len);
-int ath6kl_htc_wait_target(struct htc_target *target);
-int ath6kl_htc_start(struct htc_target *target);
-int ath6kl_htc_conn_service(struct htc_target *target,
-			    struct htc_service_connect_req *req,
-			    struct htc_service_connect_resp *resp);
-int ath6kl_htc_tx(struct htc_target *target, struct htc_packet *packet);
-void ath6kl_htc_stop(struct htc_target *target);
-void ath6kl_htc_cleanup(struct htc_target *target);
-void ath6kl_htc_flush_txep(struct htc_target *target,
-			   enum htc_endpoint_id endpoint, u16 tag);
-void ath6kl_htc_flush_rx_buf(struct htc_target *target);
-void ath6kl_htc_indicate_activity_change(struct htc_target *target,
-					 enum htc_endpoint_id endpoint,
-					 bool active);
-int ath6kl_htc_get_rxbuf_num(struct htc_target *target,
-			     enum htc_endpoint_id endpoint);
-int ath6kl_htc_add_rxbuf_multiple(struct htc_target *target,
-				  struct list_head *pktq);
 int ath6kl_htc_rxmsg_pending_handler(struct htc_target *target,
 				     u32 msg_look_ahead, int *n_pkts);
 
-int ath6kl_credit_setup(void *htc_handle,
-			struct ath6kl_htc_credit_info *cred_info);
-
 static inline void set_htc_pkt_info(struct htc_packet *packet, void *context,
 				    u8 *buf, unsigned int len,
 				    enum htc_endpoint_id eid, u16 tag)
@@ -626,4 +671,7 @@ static inline int get_queue_depth(struct list_head *queue)
 	return depth;
 }
 
+void ath6kl_htc_pipe_attach(struct ath6kl *ar);
+void ath6kl_htc_mbox_attach(struct ath6kl *ar);
+
 #endif

drivers/net/wireless/ath/ath6kl/htc_mbox.c

@@ -23,6 +23,14 @@
 
 #define CALC_TXRX_PADDED_LEN(dev, len)  (__ALIGN_MASK((len), (dev)->block_mask))
 
+static void ath6kl_htc_mbox_cleanup(struct htc_target *target);
+static void ath6kl_htc_mbox_stop(struct htc_target *target);
+static int ath6kl_htc_mbox_add_rxbuf_multiple(struct htc_target *target,
+					      struct list_head *pkt_queue);
+static void ath6kl_htc_set_credit_dist(struct htc_target *target,
+				       struct ath6kl_htc_credit_info *cred_info,
+				       u16 svc_pri_order[], int len);
+
 /* threshold to re-enable Tx bundling for an AC*/
 #define TX_RESUME_BUNDLE_THRESHOLD	1500
 
@@ -130,8 +138,8 @@ static void ath6kl_credit_init(struct ath6kl_htc_credit_info *cred_info,
 }
 
 /* initialize and setup credit distribution */
-int ath6kl_credit_setup(void *htc_handle,
+static int ath6kl_htc_mbox_credit_setup(struct htc_target *htc_target,
-			struct ath6kl_htc_credit_info *cred_info)
+			       struct ath6kl_htc_credit_info *cred_info)
 {
 	u16 servicepriority[5];
 
@@ -144,7 +152,7 @@ int ath6kl_credit_setup(void *htc_handle,
 	servicepriority[4] = WMI_DATA_BK_SVC; /* lowest */
 
 	/* set priority list */
-	ath6kl_htc_set_credit_dist(htc_handle, cred_info, servicepriority, 5);
+	ath6kl_htc_set_credit_dist(htc_target, cred_info, servicepriority, 5);
 
 	return 0;
 }
@@ -432,7 +440,7 @@ static void htc_tx_complete(struct htc_endpoint *endpoint,
 		   "htc tx complete ep %d pkts %d\n",
 		   endpoint->eid, get_queue_depth(txq));
 
-	ath6kl_tx_complete(endpoint->target->dev->ar, txq);
+	ath6kl_tx_complete(endpoint->target, txq);
 }
 
 static void htc_tx_comp_handler(struct htc_target *target,
@@ -1065,7 +1073,7 @@ static int htc_setup_tx_complete(struct htc_target *target)
 	return status;
 }
 
-void ath6kl_htc_set_credit_dist(struct htc_target *target,
+static void ath6kl_htc_set_credit_dist(struct htc_target *target,
 				struct ath6kl_htc_credit_info *credit_info,
 				u16 srvc_pri_order[], int list_len)
 {
@@ -1093,7 +1101,8 @@ void ath6kl_htc_set_credit_dist(struct htc_target *target,
 	}
 }
 
-int ath6kl_htc_tx(struct htc_target *target, struct htc_packet *packet)
+static int ath6kl_htc_mbox_tx(struct htc_target *target,
+			      struct htc_packet *packet)
 {
 	struct htc_endpoint *endpoint;
 	struct list_head queue;
@@ -1121,7 +1130,7 @@ int ath6kl_htc_tx(struct htc_target *target, struct htc_packet *packet)
 }
 
 /* flush endpoint TX queue */
-void ath6kl_htc_flush_txep(struct htc_target *target,
+static void ath6kl_htc_mbox_flush_txep(struct htc_target *target,
 			   enum htc_endpoint_id eid, u16 tag)
 {
 	struct htc_packet *packet, *tmp_pkt;
@@ -1173,12 +1182,13 @@ static void ath6kl_htc_flush_txep_all(struct htc_target *target)
 		if (endpoint->svc_id == 0)
 			/* not in use.. */
 			continue;
-		ath6kl_htc_flush_txep(target, i, HTC_TX_PACKET_TAG_ALL);
+		ath6kl_htc_mbox_flush_txep(target, i, HTC_TX_PACKET_TAG_ALL);
 	}
 }
 
-void ath6kl_htc_indicate_activity_change(struct htc_target *target,
+static void ath6kl_htc_mbox_activity_changed(struct htc_target *target,
-					 enum htc_endpoint_id eid, bool active)
+					     enum htc_endpoint_id eid,
+					     bool active)
 {
 	struct htc_endpoint *endpoint = &target->endpoint[eid];
 	bool dist = false;
@@ -1246,7 +1256,7 @@ static int htc_add_rxbuf(struct htc_target *target, struct htc_packet *packet)
 
 	INIT_LIST_HEAD(&queue);
 	list_add_tail(&packet->list, &queue);
-	return ath6kl_htc_add_rxbuf_multiple(target, &queue);
+	return ath6kl_htc_mbox_add_rxbuf_multiple(target, &queue);
 }
 
 static void htc_reclaim_rxbuf(struct htc_target *target,
@@ -1353,7 +1363,9 @@ static int ath6kl_htc_rx_setup(struct htc_target *target,
 					sizeof(*htc_hdr));
 
 	if (!htc_valid_rx_frame_len(target, ep->eid, full_len)) {
-		ath6kl_warn("Rx buffer requested with invalid length\n");
+		ath6kl_warn("Rx buffer requested with invalid length htc_hdr:eid %d, flags 0x%x, len %d\n",
+			    htc_hdr->eid, htc_hdr->flags,
+			    le16_to_cpu(htc_hdr->payld_len));
 		return -EINVAL;
 	}
 
@@ -2288,7 +2300,7 @@ static struct htc_packet *htc_wait_for_ctrl_msg(struct htc_target *target)
 	return NULL;
 }
 
-int ath6kl_htc_add_rxbuf_multiple(struct htc_target *target,
+static int ath6kl_htc_mbox_add_rxbuf_multiple(struct htc_target *target,
 				  struct list_head *pkt_queue)
 {
 	struct htc_endpoint *endpoint;
@@ -2350,7 +2362,7 @@ int ath6kl_htc_add_rxbuf_multiple(struct htc_target *target,
 	return status;
 }
 
-void ath6kl_htc_flush_rx_buf(struct htc_target *target)
+static void ath6kl_htc_mbox_flush_rx_buf(struct htc_target *target)
 {
 	struct htc_endpoint *endpoint;
 	struct htc_packet *packet, *tmp_pkt;
@@ -2392,7 +2404,7 @@ void ath6kl_htc_flush_rx_buf(struct htc_target *target)
 	}
 }
 
-int ath6kl_htc_conn_service(struct htc_target *target,
+static int ath6kl_htc_mbox_conn_service(struct htc_target *target,
 			    struct htc_service_connect_req *conn_req,
 			    struct htc_service_connect_resp *conn_resp)
 {
@@ -2564,7 +2576,7 @@ static void reset_ep_state(struct htc_target *target)
 	INIT_LIST_HEAD(&target->cred_dist_list);
 }
 
-int ath6kl_htc_get_rxbuf_num(struct htc_target *target,
+static int ath6kl_htc_mbox_get_rxbuf_num(struct htc_target *target,
 			     enum htc_endpoint_id endpoint)
 {
 	int num;
@@ -2624,7 +2636,7 @@ static void htc_setup_msg_bndl(struct htc_target *target)
 	}
 }
 
-int ath6kl_htc_wait_target(struct htc_target *target)
+static int ath6kl_htc_mbox_wait_target(struct htc_target *target)
 {
 	struct htc_packet *packet = NULL;
 	struct htc_ready_ext_msg *rdy_msg;
@@ -2693,12 +2705,12 @@ int ath6kl_htc_wait_target(struct htc_target *target)
 	connect.svc_id = HTC_CTRL_RSVD_SVC;
 
 	/* connect fake service */
-	status = ath6kl_htc_conn_service((void *)target, &connect, &resp);
+	status = ath6kl_htc_mbox_conn_service((void *)target, &connect, &resp);
 
 	if (status)
 		/*
 		 * FIXME: this call doesn't make sense, the caller should
-		 * call ath6kl_htc_cleanup() when it wants remove htc
+		 * call ath6kl_htc_mbox_cleanup() when it wants remove htc
 		 */
 		ath6kl_hif_cleanup_scatter(target->dev->ar);
 
@@ -2715,7 +2727,7 @@ int ath6kl_htc_wait_target(struct htc_target *target)
  * Start HTC, enable interrupts and let the target know
  * host has finished setup.
  */
-int ath6kl_htc_start(struct htc_target *target)
+static int ath6kl_htc_mbox_start(struct htc_target *target)
 {
 	struct htc_packet *packet;
 	int status;
@@ -2752,7 +2764,7 @@ int ath6kl_htc_start(struct htc_target *target)
 	status = ath6kl_hif_unmask_intrs(target->dev);
 
 	if (status)
-		ath6kl_htc_stop(target);
+		ath6kl_htc_mbox_stop(target);
 
 	return status;
 }
@@ -2796,7 +2808,7 @@ static int ath6kl_htc_reset(struct htc_target *target)
 }
 
 /* htc_stop: stop interrupt reception, and flush all queued buffers */
-void ath6kl_htc_stop(struct htc_target *target)
+static void ath6kl_htc_mbox_stop(struct htc_target *target)
 {
 	spin_lock_bh(&target->htc_lock);
 	target->htc_flags |= HTC_OP_STATE_STOPPING;
@@ -2811,12 +2823,12 @@ void ath6kl_htc_stop(struct htc_target *target)
 
 	ath6kl_htc_flush_txep_all(target);
 
-	ath6kl_htc_flush_rx_buf(target);
+	ath6kl_htc_mbox_flush_rx_buf(target);
 
 	ath6kl_htc_reset(target);
 }
 
-void *ath6kl_htc_create(struct ath6kl *ar)
+static void *ath6kl_htc_mbox_create(struct ath6kl *ar)
 {
 	struct htc_target *target = NULL;
 	int status = 0;
@@ -2857,13 +2869,13 @@ void *ath6kl_htc_create(struct ath6kl *ar)
 	return target;
 
 err_htc_cleanup:
-	ath6kl_htc_cleanup(target);
+	ath6kl_htc_mbox_cleanup(target);
 
 	return NULL;
 }
 
 /* cleanup the HTC instance */
-void ath6kl_htc_cleanup(struct htc_target *target)
+static void ath6kl_htc_mbox_cleanup(struct htc_target *target)
 {
 	struct htc_packet *packet, *tmp_packet;
 
@@ -2888,3 +2900,24 @@ void ath6kl_htc_cleanup(struct htc_target *target)
 	kfree(target->dev);
 	kfree(target);
 }
+
+static const struct ath6kl_htc_ops ath6kl_htc_mbox_ops = {
+	.create = ath6kl_htc_mbox_create,
+	.wait_target = ath6kl_htc_mbox_wait_target,
+	.start = ath6kl_htc_mbox_start,
+	.conn_service = ath6kl_htc_mbox_conn_service,
+	.tx = ath6kl_htc_mbox_tx,
+	.stop = ath6kl_htc_mbox_stop,
+	.cleanup = ath6kl_htc_mbox_cleanup,
+	.flush_txep = ath6kl_htc_mbox_flush_txep,
+	.flush_rx_buf = ath6kl_htc_mbox_flush_rx_buf,
+	.activity_changed = ath6kl_htc_mbox_activity_changed,
+	.get_rxbuf_num = ath6kl_htc_mbox_get_rxbuf_num,
+	.add_rxbuf_multiple = ath6kl_htc_mbox_add_rxbuf_multiple,
+	.credit_setup = ath6kl_htc_mbox_credit_setup,
+};
+
+void ath6kl_htc_mbox_attach(struct ath6kl *ar)
+{
+	ar->htc_ops = &ath6kl_htc_mbox_ops;
+}

drivers/net/wireless/ath/ath6kl/init.c

@@ -23,12 +23,14 @@
 #include <linux/export.h>
 #include <linux/of.h>
 #include <linux/mmc/sdio_func.h>
+#include <linux/vmalloc.h>
 
 #include "core.h"
 #include "cfg80211.h"
 #include "target.h"
 #include "debug.h"
 #include "hif-ops.h"
+#include "htc-ops.h"
 
 static const struct ath6kl_hw hw_list[] = {
 	{
@@ -258,6 +260,7 @@ static int ath6kl_init_service_ep(struct ath6kl *ar)
 	memset(&connect, 0, sizeof(connect));
 
 	/* these fields are the same for all service endpoints */
+	connect.ep_cb.tx_comp_multi = ath6kl_tx_complete;
 	connect.ep_cb.rx = ath6kl_rx;
 	connect.ep_cb.rx_refill = ath6kl_rx_refill;
 	connect.ep_cb.tx_full = ath6kl_tx_queue_full;
@@ -487,22 +490,31 @@ int ath6kl_configure_target(struct ath6kl *ar)
 		fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS);
 
 	/*
-	 * By default, submodes :
+	 * Submodes when fw does not support dynamic interface
+	 * switching:
 	 *		vif[0] - AP/STA/IBSS
 	 *		vif[1] - "P2P dev"/"P2P GO"/"P2P Client"
 	 *		vif[2] - "P2P dev"/"P2P GO"/"P2P Client"
+	 * Otherwise, All the interface are initialized to p2p dev.
 	 */
 
-	for (i = 0; i < ar->max_norm_iface; i++)
+	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
-		fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
+		     ar->fw_capabilities)) {
-			      (i * HI_OPTION_FW_SUBMODE_BITS);
+		for (i = 0; i < ar->vif_max; i++)
+			fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
+				(i * HI_OPTION_FW_SUBMODE_BITS);
+	} else {
+		for (i = 0; i < ar->max_norm_iface; i++)
+			fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
+				(i * HI_OPTION_FW_SUBMODE_BITS);
 
-	for (i = ar->max_norm_iface; i < ar->vif_max; i++)
+		for (i = ar->max_norm_iface; i < ar->vif_max; i++)
-		fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
+			fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
-			      (i * HI_OPTION_FW_SUBMODE_BITS);
+				(i * HI_OPTION_FW_SUBMODE_BITS);
 
-	if (ar->p2p && ar->vif_max == 1)
+		if (ar->p2p && ar->vif_max == 1)
-		fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
+			fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
+	}
 
 	if (ath6kl_bmi_write_hi32(ar, hi_app_host_interest,
 				  HTC_PROTOCOL_VERSION) != 0) {
@@ -541,18 +553,20 @@ int ath6kl_configure_target(struct ath6kl *ar)
 	 * but possible in theory.
 	 */
 
-	param = ar->hw.board_ext_data_addr;
+	if (ar->target_type == TARGET_TYPE_AR6003) {
-	ram_reserved_size = ar->hw.reserved_ram_size;
+		param = ar->hw.board_ext_data_addr;
+		ram_reserved_size = ar->hw.reserved_ram_size;
 
-	if (ath6kl_bmi_write_hi32(ar, hi_board_ext_data, param) != 0) {
+		if (ath6kl_bmi_write_hi32(ar, hi_board_ext_data, param) != 0) {
-		ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
+			ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
-		return -EIO;
+			return -EIO;
-	}
+		}
 
-	if (ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz,
+		if (ath6kl_bmi_write_hi32(ar, hi_end_ram_reserve_sz,
-				  ram_reserved_size) != 0) {
+					  ram_reserved_size) != 0) {
-		ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
+			ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
-		return -EIO;
+			return -EIO;
+		}
 	}
 
 	/* set the block size for the target */
@@ -926,13 +940,14 @@ static int ath6kl_fetch_fw_apin(struct ath6kl *ar, const char *name)
 			if (ar->fw != NULL)
 				break;
 
-			ar->fw = kmemdup(data, ie_len, GFP_KERNEL);
+			ar->fw = vmalloc(ie_len);
 
 			if (ar->fw == NULL) {
 				ret = -ENOMEM;
 				goto out;
 			}
 
+			memcpy(ar->fw, data, ie_len);
 			ar->fw_len = ie_len;
 			break;
 		case ATH6KL_FW_IE_PATCH_IMAGE:
@@ -1509,7 +1524,7 @@ int ath6kl_init_hw_start(struct ath6kl *ar)
 	}
 
 	/* setup credit distribution */
-	ath6kl_credit_setup(ar->htc_target, &ar->credit_state_info);
+	ath6kl_htc_credit_setup(ar->htc_target, &ar->credit_state_info);
 
 	/* start HTC */
 	ret = ath6kl_htc_start(ar->htc_target);

drivers/net/wireless/ath/ath6kl/main.c

@@ -758,6 +758,10 @@ static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
 	stats->wow_evt_discarded +=
 		le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
 
+	stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received);
+	stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied);
+	stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched);
+
 	if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
 		clear_bit(STATS_UPDATE_PEND, &vif->flags);
 		wake_up(&ar->event_wq);

drivers/net/wireless/ath/ath6kl/sdio.c

@@ -1362,7 +1362,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
 		goto err_core_alloc;
 	}
 
-	ret = ath6kl_core_init(ar);
+	ret = ath6kl_core_init(ar, ATH6KL_HTC_TYPE_MBOX);
 	if (ret) {
 		ath6kl_err("Failed to init ath6kl core\n");
 		goto err_core_alloc;

drivers/net/wireless/ath/ath6kl/txrx.c

@@ -19,6 +19,7 @@
 
 #include "core.h"
 #include "debug.h"
+#include "htc-ops.h"
 
 /*
  * tid - tid_mux0..tid_mux3
@@ -324,6 +325,7 @@ int ath6kl_control_tx(void *devt, struct sk_buff *skb,
 	cookie->map_no = 0;
 	set_htc_pkt_info(&cookie->htc_pkt, cookie, skb->data, skb->len,
 			 eid, ATH6KL_CONTROL_PKT_TAG);
+	cookie->htc_pkt.skb = skb;
 
 	/*
 	 * This interface is asynchronous, if there is an error, cleanup
@@ -492,6 +494,7 @@ int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev)
 	cookie->map_no = map_no;
 	set_htc_pkt_info(&cookie->htc_pkt, cookie, skb->data, skb->len,
 			 eid, htc_tag);
+	cookie->htc_pkt.skb = skb;
 
 	ath6kl_dbg_dump(ATH6KL_DBG_RAW_BYTES, __func__, "tx ",
 			skb->data, skb->len);
@@ -572,7 +575,7 @@ void ath6kl_indicate_tx_activity(void *devt, u8 traffic_class, bool active)
 
 notify_htc:
 	/* notify HTC, this may cause credit distribution changes */
-	ath6kl_htc_indicate_activity_change(ar->htc_target, eid, active);
+	ath6kl_htc_activity_changed(ar->htc_target, eid, active);
 }
 
 enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target,
@@ -668,9 +671,10 @@ static void ath6kl_tx_clear_node_map(struct ath6kl_vif *vif,
 	}
 }
 
-void ath6kl_tx_complete(void *context, struct list_head *packet_queue)
+void ath6kl_tx_complete(struct htc_target *target,
+			struct list_head *packet_queue)
 {
-	struct ath6kl *ar = context;
+	struct ath6kl *ar = target->dev->ar;
 	struct sk_buff_head skb_queue;
 	struct htc_packet *packet;
 	struct sk_buff *skb;
@@ -889,6 +893,7 @@ void ath6kl_rx_refill(struct htc_target *target, enum htc_endpoint_id endpoint)
 			skb->data = PTR_ALIGN(skb->data - 4, 4);
 		set_htc_rxpkt_info(packet, skb, skb->data,
 				   ATH6KL_BUFFER_SIZE, endpoint);
+		packet->skb = skb;
 		list_add_tail(&packet->list, &queue);
 	}
 
@@ -911,6 +916,8 @@ void ath6kl_refill_amsdu_rxbufs(struct ath6kl *ar, int count)
 			skb->data = PTR_ALIGN(skb->data - 4, 4);
 		set_htc_rxpkt_info(packet, skb, skb->data,
 				   ATH6KL_AMSDU_BUFFER_SIZE, 0);
+		packet->skb = skb;
+
 		spin_lock_bh(&ar->lock);
 		list_add_tail(&packet->list, &ar->amsdu_rx_buffer_queue);
 		spin_unlock_bh(&ar->lock);
@@ -1283,6 +1290,7 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet)
 	struct wmi_data_hdr *dhdr;
 	int min_hdr_len;
 	u8 meta_type, dot11_hdr = 0;
+	u8 pad_before_data_start;
 	int status = packet->status;
 	enum htc_endpoint_id ept = packet->endpoint;
 	bool is_amsdu, prev_ps, ps_state = false;
@@ -1494,6 +1502,10 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet)
 	seq_no = wmi_data_hdr_get_seqno(dhdr);
 	meta_type = wmi_data_hdr_get_meta(dhdr);
 	dot11_hdr = wmi_data_hdr_get_dot11(dhdr);
+	pad_before_data_start =
+		(le16_to_cpu(dhdr->info3) >> WMI_DATA_HDR_PAD_BEFORE_DATA_SHIFT)
+			& WMI_DATA_HDR_PAD_BEFORE_DATA_MASK;
+
 	skb_pull(skb, sizeof(struct wmi_data_hdr));
 
 	switch (meta_type) {
@@ -1512,6 +1524,8 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet)
 		break;
 	}
 
+	skb_pull(skb, pad_before_data_start);
+
 	if (dot11_hdr)
 		status = ath6kl_wmi_dot11_hdr_remove(ar->wmi, skb);
 	else if (!is_amsdu)
@@ -1581,7 +1595,8 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet)
 			/* aggregation code will handle the skb */
 			return;
 		}
-	}
+	} else if (!is_broadcast_ether_addr(datap->h_dest))
+		vif->net_stats.multicast++;
 
 	ath6kl_deliver_frames_to_nw_stack(vif->ndev, skb);
 }

drivers/net/wireless/ath/ath6kl/usb.c

@@ -21,15 +21,77 @@
 #include "debug.h"
 #include "core.h"
 
+/* constants */
+#define TX_URB_COUNT            32
+#define RX_URB_COUNT            32
+#define ATH6KL_USB_RX_BUFFER_SIZE  1700
+
+/* tx/rx pipes for usb */
+enum ATH6KL_USB_PIPE_ID {
+	ATH6KL_USB_PIPE_TX_CTRL = 0,
+	ATH6KL_USB_PIPE_TX_DATA_LP,
+	ATH6KL_USB_PIPE_TX_DATA_MP,
+	ATH6KL_USB_PIPE_TX_DATA_HP,
+	ATH6KL_USB_PIPE_RX_CTRL,
+	ATH6KL_USB_PIPE_RX_DATA,
+	ATH6KL_USB_PIPE_RX_DATA2,
+	ATH6KL_USB_PIPE_RX_INT,
+	ATH6KL_USB_PIPE_MAX
+};
+
+#define ATH6KL_USB_PIPE_INVALID ATH6KL_USB_PIPE_MAX
+
+struct ath6kl_usb_pipe {
+	struct list_head urb_list_head;
+	struct usb_anchor urb_submitted;
+	u32 urb_alloc;
+	u32 urb_cnt;
+	u32 urb_cnt_thresh;
+	unsigned int usb_pipe_handle;
+	u32 flags;
+	u8 ep_address;
+	u8 logical_pipe_num;
+	struct ath6kl_usb *ar_usb;
+	u16 max_packet_size;
+	struct work_struct io_complete_work;
+	struct sk_buff_head io_comp_queue;
+	struct usb_endpoint_descriptor *ep_desc;
+};
+
+#define ATH6KL_USB_PIPE_FLAG_TX    (1 << 0)
+
 /* usb device object */
 struct ath6kl_usb {
+	/* protects pipe->urb_list_head and  pipe->urb_cnt */
+	spinlock_t cs_lock;
+
 	struct usb_device *udev;
 	struct usb_interface *interface;
+	struct ath6kl_usb_pipe pipes[ATH6KL_USB_PIPE_MAX];
 	u8 *diag_cmd_buffer;
 	u8 *diag_resp_buffer;
 	struct ath6kl *ar;
 };
 
+/* usb urb object */
+struct ath6kl_urb_context {
+	struct list_head link;
+	struct ath6kl_usb_pipe *pipe;
+	struct sk_buff *skb;
+	struct ath6kl *ar;
+};
+
+/* USB endpoint definitions */
+#define ATH6KL_USB_EP_ADDR_APP_CTRL_IN          0x81
+#define ATH6KL_USB_EP_ADDR_APP_DATA_IN          0x82
+#define ATH6KL_USB_EP_ADDR_APP_DATA2_IN         0x83
+#define ATH6KL_USB_EP_ADDR_APP_INT_IN           0x84
+
+#define ATH6KL_USB_EP_ADDR_APP_CTRL_OUT         0x01
+#define ATH6KL_USB_EP_ADDR_APP_DATA_LP_OUT      0x02
+#define ATH6KL_USB_EP_ADDR_APP_DATA_MP_OUT      0x03
+#define ATH6KL_USB_EP_ADDR_APP_DATA_HP_OUT      0x04
+
 /* diagnostic command defnitions */
 #define ATH6KL_USB_CONTROL_REQ_SEND_BMI_CMD        1
 #define ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP       2
@@ -55,11 +117,493 @@ struct ath6kl_usb_ctrl_diag_resp_read {
 	__le32 value;
 } __packed;
 
+/* function declarations */
+static void ath6kl_usb_recv_complete(struct urb *urb);
+
+#define ATH6KL_USB_IS_BULK_EP(attr) (((attr) & 3) == 0x02)
+#define ATH6KL_USB_IS_INT_EP(attr)  (((attr) & 3) == 0x03)
+#define ATH6KL_USB_IS_ISOC_EP(attr)  (((attr) & 3) == 0x01)
+#define ATH6KL_USB_IS_DIR_IN(addr)  ((addr) & 0x80)
+
+/* pipe/urb operations */
+static struct ath6kl_urb_context *
+ath6kl_usb_alloc_urb_from_pipe(struct ath6kl_usb_pipe *pipe)
+{
+	struct ath6kl_urb_context *urb_context = NULL;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pipe->ar_usb->cs_lock, flags);
+	if (!list_empty(&pipe->urb_list_head)) {
+		urb_context =
+		    list_first_entry(&pipe->urb_list_head,
+				     struct ath6kl_urb_context, link);
+		list_del(&urb_context->link);
+		pipe->urb_cnt--;
+	}
+	spin_unlock_irqrestore(&pipe->ar_usb->cs_lock, flags);
+
+	return urb_context;
+}
+
+static void ath6kl_usb_free_urb_to_pipe(struct ath6kl_usb_pipe *pipe,
+					struct ath6kl_urb_context *urb_context)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&pipe->ar_usb->cs_lock, flags);
+	pipe->urb_cnt++;
+
+	list_add(&urb_context->link, &pipe->urb_list_head);
+	spin_unlock_irqrestore(&pipe->ar_usb->cs_lock, flags);
+}
+
+static void ath6kl_usb_cleanup_recv_urb(struct ath6kl_urb_context *urb_context)
+{
+	if (urb_context->skb != NULL) {
+		dev_kfree_skb(urb_context->skb);
+		urb_context->skb = NULL;
+	}
+
+	ath6kl_usb_free_urb_to_pipe(urb_context->pipe, urb_context);
+}
+
+static inline struct ath6kl_usb *ath6kl_usb_priv(struct ath6kl *ar)
+{
+	return ar->hif_priv;
+}
+
+/* pipe resource allocation/cleanup */
+static int ath6kl_usb_alloc_pipe_resources(struct ath6kl_usb_pipe *pipe,
+					   int urb_cnt)
+{
+	struct ath6kl_urb_context *urb_context;
+	int status = 0, i;
+
+	INIT_LIST_HEAD(&pipe->urb_list_head);
+	init_usb_anchor(&pipe->urb_submitted);
+
+	for (i = 0; i < urb_cnt; i++) {
+		urb_context = kzalloc(sizeof(struct ath6kl_urb_context),
+				      GFP_KERNEL);
+		if (urb_context == NULL)
+			/* FIXME: set status to -ENOMEM */
+			break;
+
+		urb_context->pipe = pipe;
+
+		/*
+		 * we are only allocate the urb contexts here, the actual URB
+		 * is allocated from the kernel as needed to do a transaction
+		 */
+		pipe->urb_alloc++;
+		ath6kl_usb_free_urb_to_pipe(pipe, urb_context);
+	}
+
+	ath6kl_dbg(ATH6KL_DBG_USB,
+		   "ath6kl usb: alloc resources lpipe:%d hpipe:0x%X urbs:%d\n",
+		   pipe->logical_pipe_num, pipe->usb_pipe_handle,
+		   pipe->urb_alloc);
+
+	return status;
+}
+
+static void ath6kl_usb_free_pipe_resources(struct ath6kl_usb_pipe *pipe)
+{
+	struct ath6kl_urb_context *urb_context;
+
+	if (pipe->ar_usb == NULL) {
+		/* nothing allocated for this pipe */
+		return;
+	}
+
+	ath6kl_dbg(ATH6KL_DBG_USB,
+		   "ath6kl usb: free resources lpipe:%d"
+		   "hpipe:0x%X urbs:%d avail:%d\n",
+		   pipe->logical_pipe_num, pipe->usb_pipe_handle,
+		   pipe->urb_alloc, pipe->urb_cnt);
+
+	if (pipe->urb_alloc != pipe->urb_cnt) {
+		ath6kl_dbg(ATH6KL_DBG_USB,
+			   "ath6kl usb: urb leak! lpipe:%d"
+			   "hpipe:0x%X urbs:%d avail:%d\n",
+			   pipe->logical_pipe_num, pipe->usb_pipe_handle,
+			   pipe->urb_alloc, pipe->urb_cnt);
+	}
+
+	while (true) {
+		urb_context = ath6kl_usb_alloc_urb_from_pipe(pipe);
+		if (urb_context == NULL)
+			break;
+		kfree(urb_context);
+	}
+
+}
+
+static void ath6kl_usb_cleanup_pipe_resources(struct ath6kl_usb *ar_usb)
+{
+	int i;
+
+	for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++)
+		ath6kl_usb_free_pipe_resources(&ar_usb->pipes[i]);
+
+}
+
+static u8 ath6kl_usb_get_logical_pipe_num(struct ath6kl_usb *ar_usb,
+					  u8 ep_address, int *urb_count)
+{
+	u8 pipe_num = ATH6KL_USB_PIPE_INVALID;
+
+	switch (ep_address) {
+	case ATH6KL_USB_EP_ADDR_APP_CTRL_IN:
+		pipe_num = ATH6KL_USB_PIPE_RX_CTRL;
+		*urb_count = RX_URB_COUNT;
+		break;
+	case ATH6KL_USB_EP_ADDR_APP_DATA_IN:
+		pipe_num = ATH6KL_USB_PIPE_RX_DATA;
+		*urb_count = RX_URB_COUNT;
+		break;
+	case ATH6KL_USB_EP_ADDR_APP_INT_IN:
+		pipe_num = ATH6KL_USB_PIPE_RX_INT;
+		*urb_count = RX_URB_COUNT;
+		break;
+	case ATH6KL_USB_EP_ADDR_APP_DATA2_IN:
+		pipe_num = ATH6KL_USB_PIPE_RX_DATA2;
+		*urb_count = RX_URB_COUNT;
+		break;
+	case ATH6KL_USB_EP_ADDR_APP_CTRL_OUT:
+		pipe_num = ATH6KL_USB_PIPE_TX_CTRL;
+		*urb_count = TX_URB_COUNT;
+		break;
+	case ATH6KL_USB_EP_ADDR_APP_DATA_LP_OUT:
+		pipe_num = ATH6KL_USB_PIPE_TX_DATA_LP;
+		*urb_count = TX_URB_COUNT;
+		break;
+	case ATH6KL_USB_EP_ADDR_APP_DATA_MP_OUT:
+		pipe_num = ATH6KL_USB_PIPE_TX_DATA_MP;
+		*urb_count = TX_URB_COUNT;
+		break;
+	case ATH6KL_USB_EP_ADDR_APP_DATA_HP_OUT:
+		pipe_num = ATH6KL_USB_PIPE_TX_DATA_HP;
+		*urb_count = TX_URB_COUNT;
+		break;
+	default:
+		/* note: there may be endpoints not currently used */
+		break;
+	}
+
+	return pipe_num;
+}
+
+static int ath6kl_usb_setup_pipe_resources(struct ath6kl_usb *ar_usb)
+{
+	struct usb_interface *interface = ar_usb->interface;
+	struct usb_host_interface *iface_desc = interface->cur_altsetting;
+	struct usb_endpoint_descriptor *endpoint;
+	struct ath6kl_usb_pipe *pipe;
+	int i, urbcount, status = 0;
+	u8 pipe_num;
+
+	ath6kl_dbg(ATH6KL_DBG_USB, "setting up USB Pipes using interface\n");
+
+	/* walk decriptors and setup pipes */
+	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+		endpoint = &iface_desc->endpoint[i].desc;
+
+		if (ATH6KL_USB_IS_BULK_EP(endpoint->bmAttributes)) {
+			ath6kl_dbg(ATH6KL_DBG_USB,
+				   "%s Bulk Ep:0x%2.2X maxpktsz:%d\n",
+				   ATH6KL_USB_IS_DIR_IN
+				   (endpoint->bEndpointAddress) ?
+				   "RX" : "TX", endpoint->bEndpointAddress,
+				   le16_to_cpu(endpoint->wMaxPacketSize));
+		} else if (ATH6KL_USB_IS_INT_EP(endpoint->bmAttributes)) {
+			ath6kl_dbg(ATH6KL_DBG_USB,
+				   "%s Int Ep:0x%2.2X maxpktsz:%d interval:%d\n",
+				   ATH6KL_USB_IS_DIR_IN
+				   (endpoint->bEndpointAddress) ?
+				   "RX" : "TX", endpoint->bEndpointAddress,
+				   le16_to_cpu(endpoint->wMaxPacketSize),
+				   endpoint->bInterval);
+		} else if (ATH6KL_USB_IS_ISOC_EP(endpoint->bmAttributes)) {
+			/* TODO for ISO */
+			ath6kl_dbg(ATH6KL_DBG_USB,
+				   "%s ISOC Ep:0x%2.2X maxpktsz:%d interval:%d\n",
+				   ATH6KL_USB_IS_DIR_IN
+				   (endpoint->bEndpointAddress) ?
+				   "RX" : "TX", endpoint->bEndpointAddress,
+				   le16_to_cpu(endpoint->wMaxPacketSize),
+				   endpoint->bInterval);
+		}
+		urbcount = 0;
+
+		pipe_num =
+		    ath6kl_usb_get_logical_pipe_num(ar_usb,
+						    endpoint->bEndpointAddress,
+						    &urbcount);
+		if (pipe_num == ATH6KL_USB_PIPE_INVALID)
+			continue;
+
+		pipe = &ar_usb->pipes[pipe_num];
+		if (pipe->ar_usb != NULL) {
+			/* hmmm..pipe was already setup */
+			continue;
+		}
+
+		pipe->ar_usb = ar_usb;
+		pipe->logical_pipe_num = pipe_num;
+		pipe->ep_address = endpoint->bEndpointAddress;
+		pipe->max_packet_size = le16_to_cpu(endpoint->wMaxPacketSize);
+
+		if (ATH6KL_USB_IS_BULK_EP(endpoint->bmAttributes)) {
+			if (ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) {
+				pipe->usb_pipe_handle =
+				    usb_rcvbulkpipe(ar_usb->udev,
+						    pipe->ep_address);
+			} else {
+				pipe->usb_pipe_handle =
+				    usb_sndbulkpipe(ar_usb->udev,
+						    pipe->ep_address);
+			}
+		} else if (ATH6KL_USB_IS_INT_EP(endpoint->bmAttributes)) {
+			if (ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) {
+				pipe->usb_pipe_handle =
+				    usb_rcvintpipe(ar_usb->udev,
+						   pipe->ep_address);
+			} else {
+				pipe->usb_pipe_handle =
+				    usb_sndintpipe(ar_usb->udev,
+						   pipe->ep_address);
+			}
+		} else if (ATH6KL_USB_IS_ISOC_EP(endpoint->bmAttributes)) {
+			/* TODO for ISO */
+			if (ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) {
+				pipe->usb_pipe_handle =
+				    usb_rcvisocpipe(ar_usb->udev,
+						    pipe->ep_address);
+			} else {
+				pipe->usb_pipe_handle =
+				    usb_sndisocpipe(ar_usb->udev,
+						    pipe->ep_address);
+			}
+		}
+
+		pipe->ep_desc = endpoint;
+
+		if (!ATH6KL_USB_IS_DIR_IN(pipe->ep_address))
+			pipe->flags |= ATH6KL_USB_PIPE_FLAG_TX;
+
+		status = ath6kl_usb_alloc_pipe_resources(pipe, urbcount);
+		if (status != 0)
+			break;
+	}
+
+	return status;
+}
+
+/* pipe operations */
+static void ath6kl_usb_post_recv_transfers(struct ath6kl_usb_pipe *recv_pipe,
+					   int buffer_length)
+{
+	struct ath6kl_urb_context *urb_context;
+	struct urb *urb;
+	int usb_status;
+
+	while (true) {
+		urb_context = ath6kl_usb_alloc_urb_from_pipe(recv_pipe);
+		if (urb_context == NULL)
+			break;
+
+		urb_context->skb = dev_alloc_skb(buffer_length);
+		if (urb_context->skb == NULL)
+			goto err_cleanup_urb;
+
+		urb = usb_alloc_urb(0, GFP_ATOMIC);
+		if (urb == NULL)
+			goto err_cleanup_urb;
+
+		usb_fill_bulk_urb(urb,
+				  recv_pipe->ar_usb->udev,
+				  recv_pipe->usb_pipe_handle,
+				  urb_context->skb->data,
+				  buffer_length,
+				  ath6kl_usb_recv_complete, urb_context);
+
+		ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+			   "ath6kl usb: bulk recv submit:%d, 0x%X (ep:0x%2.2X), %d bytes buf:0x%p\n",
+			   recv_pipe->logical_pipe_num,
+			   recv_pipe->usb_pipe_handle, recv_pipe->ep_address,
+			   buffer_length, urb_context->skb);
+
+		usb_anchor_urb(urb, &recv_pipe->urb_submitted);
+		usb_status = usb_submit_urb(urb, GFP_ATOMIC);
+
+		if (usb_status) {
+			ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+				   "ath6kl usb : usb bulk recv failed %d\n",
+				   usb_status);
+			usb_unanchor_urb(urb);
+			usb_free_urb(urb);
+			goto err_cleanup_urb;
+		}
+		usb_free_urb(urb);
+	}
+	return;
+
+err_cleanup_urb:
+	ath6kl_usb_cleanup_recv_urb(urb_context);
+	return;
+}
+
+static void ath6kl_usb_flush_all(struct ath6kl_usb *ar_usb)
+{
+	int i;
+
+	for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++) {
+		if (ar_usb->pipes[i].ar_usb != NULL)
+			usb_kill_anchored_urbs(&ar_usb->pipes[i].urb_submitted);
+	}
+
+	/*
+	 * Flushing any pending I/O may schedule work this call will block
+	 * until all scheduled work runs to completion.
+	 */
+	flush_scheduled_work();
+}
+
+static void ath6kl_usb_start_recv_pipes(struct ath6kl_usb *ar_usb)
+{
+	/*
+	 * note: control pipe is no longer used
+	 * ar_usb->pipes[ATH6KL_USB_PIPE_RX_CTRL].urb_cnt_thresh =
+	 *      ar_usb->pipes[ATH6KL_USB_PIPE_RX_CTRL].urb_alloc/2;
+	 * ath6kl_usb_post_recv_transfers(&ar_usb->
+	 *		pipes[ATH6KL_USB_PIPE_RX_CTRL],
+	 *		ATH6KL_USB_RX_BUFFER_SIZE);
+	 */
+
+	ar_usb->pipes[ATH6KL_USB_PIPE_RX_DATA].urb_cnt_thresh =
+	    ar_usb->pipes[ATH6KL_USB_PIPE_RX_DATA].urb_alloc / 2;
+	ath6kl_usb_post_recv_transfers(&ar_usb->pipes[ATH6KL_USB_PIPE_RX_DATA],
+				       ATH6KL_USB_RX_BUFFER_SIZE);
+}
+
+/* hif usb rx/tx completion functions */
+static void ath6kl_usb_recv_complete(struct urb *urb)
+{
+	struct ath6kl_urb_context *urb_context = urb->context;
+	struct ath6kl_usb_pipe *pipe = urb_context->pipe;
+	struct sk_buff *skb = NULL;
+	int status = 0;
+
+	ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+		   "%s: recv pipe: %d, stat:%d, len:%d urb:0x%p\n", __func__,
+		   pipe->logical_pipe_num, urb->status, urb->actual_length,
+		   urb);
+
+	if (urb->status != 0) {
+		status = -EIO;
+		switch (urb->status) {
+		case -ECONNRESET:
+		case -ENOENT:
+		case -ESHUTDOWN:
+			/*
+			 * no need to spew these errors when device
+			 * removed or urb killed due to driver shutdown
+			 */
+			status = -ECANCELED;
+			break;
+		default:
+			ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+				   "%s recv pipe: %d (ep:0x%2.2X), failed:%d\n",
+				   __func__, pipe->logical_pipe_num,
+				   pipe->ep_address, urb->status);
+			break;
+		}
+		goto cleanup_recv_urb;
+	}
+
+	if (urb->actual_length == 0)
+		goto cleanup_recv_urb;
+
+	skb = urb_context->skb;
+
+	/* we are going to pass it up */
+	urb_context->skb = NULL;
+	skb_put(skb, urb->actual_length);
+
+	/* note: queue implements a lock */
+	skb_queue_tail(&pipe->io_comp_queue, skb);
+	schedule_work(&pipe->io_complete_work);
+
+cleanup_recv_urb:
+	ath6kl_usb_cleanup_recv_urb(urb_context);
+
+	if (status == 0 &&
+	    pipe->urb_cnt >= pipe->urb_cnt_thresh) {
+		/* our free urbs are piling up, post more transfers */
+		ath6kl_usb_post_recv_transfers(pipe, ATH6KL_USB_RX_BUFFER_SIZE);
+	}
+}
+
+static void ath6kl_usb_usb_transmit_complete(struct urb *urb)
+{
+	struct ath6kl_urb_context *urb_context = urb->context;
+	struct ath6kl_usb_pipe *pipe = urb_context->pipe;
+	struct sk_buff *skb;
+
+	ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+		   "%s: pipe: %d, stat:%d, len:%d\n",
+		   __func__, pipe->logical_pipe_num, urb->status,
+		   urb->actual_length);
+
+	if (urb->status != 0) {
+		ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+			   "%s:  pipe: %d, failed:%d\n",
+			   __func__, pipe->logical_pipe_num, urb->status);
+	}
+
+	skb = urb_context->skb;
+	urb_context->skb = NULL;
+	ath6kl_usb_free_urb_to_pipe(urb_context->pipe, urb_context);
+
+	/* note: queue implements a lock */
+	skb_queue_tail(&pipe->io_comp_queue, skb);
+	schedule_work(&pipe->io_complete_work);
+}
+
+static void ath6kl_usb_io_comp_work(struct work_struct *work)
+{
+	struct ath6kl_usb_pipe *pipe = container_of(work,
+						    struct ath6kl_usb_pipe,
+						    io_complete_work);
+	struct ath6kl_usb *ar_usb;
+	struct sk_buff *skb;
+
+	ar_usb = pipe->ar_usb;
+
+	while ((skb = skb_dequeue(&pipe->io_comp_queue))) {
+		if (pipe->flags & ATH6KL_USB_PIPE_FLAG_TX) {
+			ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+				   "ath6kl usb xmit callback buf:0x%p\n", skb);
+			ath6kl_core_tx_complete(ar_usb->ar, skb);
+		} else {
+			ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+				   "ath6kl usb recv callback buf:0x%p\n", skb);
+			ath6kl_core_rx_complete(ar_usb->ar, skb,
+						pipe->logical_pipe_num);
+		}
+	}
+}
+
 #define ATH6KL_USB_MAX_DIAG_CMD (sizeof(struct ath6kl_usb_ctrl_diag_cmd_write))
 #define ATH6KL_USB_MAX_DIAG_RESP (sizeof(struct ath6kl_usb_ctrl_diag_resp_read))
 
 static void ath6kl_usb_destroy(struct ath6kl_usb *ar_usb)
 {
+	ath6kl_usb_flush_all(ar_usb);
+
+	ath6kl_usb_cleanup_pipe_resources(ar_usb);
+
 	usb_set_intfdata(ar_usb->interface, NULL);
 
 	kfree(ar_usb->diag_cmd_buffer);
@@ -70,19 +614,28 @@ static void ath6kl_usb_destroy(struct ath6kl_usb *ar_usb)
 
 static struct ath6kl_usb *ath6kl_usb_create(struct usb_interface *interface)
 {
-	struct ath6kl_usb *ar_usb = NULL;
 	struct usb_device *dev = interface_to_usbdev(interface);
+	struct ath6kl_usb *ar_usb;
+	struct ath6kl_usb_pipe *pipe;
 	int status = 0;
+	int i;
 
 	ar_usb = kzalloc(sizeof(struct ath6kl_usb), GFP_KERNEL);
 	if (ar_usb == NULL)
 		goto fail_ath6kl_usb_create;
 
-	memset(ar_usb, 0, sizeof(struct ath6kl_usb));
 	usb_set_intfdata(interface, ar_usb);
+	spin_lock_init(&(ar_usb->cs_lock));
 	ar_usb->udev = dev;
 	ar_usb->interface = interface;
 
+	for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++) {
+		pipe = &ar_usb->pipes[i];
+		INIT_WORK(&pipe->io_complete_work,
+			  ath6kl_usb_io_comp_work);
+		skb_queue_head_init(&pipe->io_comp_queue);
+	}
+
 	ar_usb->diag_cmd_buffer = kzalloc(ATH6KL_USB_MAX_DIAG_CMD, GFP_KERNEL);
 	if (ar_usb->diag_cmd_buffer == NULL) {
 		status = -ENOMEM;
@@ -96,6 +649,8 @@ static struct ath6kl_usb *ath6kl_usb_create(struct usb_interface *interface)
 		goto fail_ath6kl_usb_create;
 	}
 
+	status = ath6kl_usb_setup_pipe_resources(ar_usb);
+
 fail_ath6kl_usb_create:
 	if (status != 0) {
 		ath6kl_usb_destroy(ar_usb);
@@ -114,11 +669,177 @@ static void ath6kl_usb_device_detached(struct usb_interface *interface)
 
 	ath6kl_stop_txrx(ar_usb->ar);
 
+	/* Delay to wait for the target to reboot */
+	mdelay(20);
 	ath6kl_core_cleanup(ar_usb->ar);
-
 	ath6kl_usb_destroy(ar_usb);
 }
 
+/* exported hif usb APIs for htc pipe */
+static void hif_start(struct ath6kl *ar)
+{
+	struct ath6kl_usb *device = ath6kl_usb_priv(ar);
+	int i;
+
+	ath6kl_usb_start_recv_pipes(device);
+
+	/* set the TX resource avail threshold for each TX pipe */
+	for (i = ATH6KL_USB_PIPE_TX_CTRL;
+	     i <= ATH6KL_USB_PIPE_TX_DATA_HP; i++) {
+		device->pipes[i].urb_cnt_thresh =
+		    device->pipes[i].urb_alloc / 2;
+	}
+}
+
+static int ath6kl_usb_send(struct ath6kl *ar, u8 PipeID,
+			   struct sk_buff *hdr_skb, struct sk_buff *skb)
+{
+	struct ath6kl_usb *device = ath6kl_usb_priv(ar);
+	struct ath6kl_usb_pipe *pipe = &device->pipes[PipeID];
+	struct ath6kl_urb_context *urb_context;
+	int usb_status, status = 0;
+	struct urb *urb;
+	u8 *data;
+	u32 len;
+
+	ath6kl_dbg(ATH6KL_DBG_USB_BULK, "+%s pipe : %d, buf:0x%p\n",
+		   __func__, PipeID, skb);
+
+	urb_context = ath6kl_usb_alloc_urb_from_pipe(pipe);
+
+	if (urb_context == NULL) {
+		/*
+		 * TODO: it is possible to run out of urbs if
+		 * 2 endpoints map to the same pipe ID
+		 */
+		ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+			   "%s pipe:%d no urbs left. URB Cnt : %d\n",
+			   __func__, PipeID, pipe->urb_cnt);
+		status = -ENOMEM;
+		goto fail_hif_send;
+	}
+
+	urb_context->skb = skb;
+
+	data = skb->data;
+	len = skb->len;
+
+	urb = usb_alloc_urb(0, GFP_ATOMIC);
+	if (urb == NULL) {
+		status = -ENOMEM;
+		ath6kl_usb_free_urb_to_pipe(urb_context->pipe,
+					    urb_context);
+		goto fail_hif_send;
+	}
+
+	usb_fill_bulk_urb(urb,
+			  device->udev,
+			  pipe->usb_pipe_handle,
+			  data,
+			  len,
+			  ath6kl_usb_usb_transmit_complete, urb_context);
+
+	if ((len % pipe->max_packet_size) == 0) {
+		/* hit a max packet boundary on this pipe */
+		urb->transfer_flags |= URB_ZERO_PACKET;
+	}
+
+	ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+		   "athusb bulk send submit:%d, 0x%X (ep:0x%2.2X), %d bytes\n",
+		   pipe->logical_pipe_num, pipe->usb_pipe_handle,
+		   pipe->ep_address, len);
+
+	usb_anchor_urb(urb, &pipe->urb_submitted);
+	usb_status = usb_submit_urb(urb, GFP_ATOMIC);
+
+	if (usb_status) {
+		ath6kl_dbg(ATH6KL_DBG_USB_BULK,
+			   "ath6kl usb : usb bulk transmit failed %d\n",
+			   usb_status);
+		usb_unanchor_urb(urb);
+		ath6kl_usb_free_urb_to_pipe(urb_context->pipe,
+					    urb_context);
+		status = -EINVAL;
+	}
+	usb_free_urb(urb);
+
+fail_hif_send:
+	return status;
+}
+
+static void hif_stop(struct ath6kl *ar)
+{
+	struct ath6kl_usb *device = ath6kl_usb_priv(ar);
+
+	ath6kl_usb_flush_all(device);
+}
+
+static void ath6kl_usb_get_default_pipe(struct ath6kl *ar,
+					u8 *ul_pipe, u8 *dl_pipe)
+{
+	*ul_pipe = ATH6KL_USB_PIPE_TX_CTRL;
+	*dl_pipe = ATH6KL_USB_PIPE_RX_CTRL;
+}
+
+static int ath6kl_usb_map_service_pipe(struct ath6kl *ar, u16 svc_id,
+				       u8 *ul_pipe, u8 *dl_pipe)
+{
+	int status = 0;
+
+	switch (svc_id) {
+	case HTC_CTRL_RSVD_SVC:
+	case WMI_CONTROL_SVC:
+		*ul_pipe = ATH6KL_USB_PIPE_TX_CTRL;
+		/* due to large control packets, shift to data pipe */
+		*dl_pipe = ATH6KL_USB_PIPE_RX_DATA;
+		break;
+	case WMI_DATA_BE_SVC:
+	case WMI_DATA_BK_SVC:
+		*ul_pipe = ATH6KL_USB_PIPE_TX_DATA_LP;
+		/*
+		* Disable rxdata2 directly, it will be enabled
+		* if FW enable rxdata2
+		*/
+		*dl_pipe = ATH6KL_USB_PIPE_RX_DATA;
+		break;
+	case WMI_DATA_VI_SVC:
+		*ul_pipe = ATH6KL_USB_PIPE_TX_DATA_MP;
+		/*
+		* Disable rxdata2 directly, it will be enabled
+		* if FW enable rxdata2
+		*/
+		*dl_pipe = ATH6KL_USB_PIPE_RX_DATA;
+		break;
+	case WMI_DATA_VO_SVC:
+		*ul_pipe = ATH6KL_USB_PIPE_TX_DATA_HP;
+		/*
+		* Disable rxdata2 directly, it will be enabled
+		* if FW enable rxdata2
+		*/
+		*dl_pipe = ATH6KL_USB_PIPE_RX_DATA;
+		break;
+	default:
+		status = -EPERM;
+		break;
+	}
+
+	return status;
+}
+
+static u16 ath6kl_usb_get_free_queue_number(struct ath6kl *ar, u8 pipe_id)
+{
+	struct ath6kl_usb *device = ath6kl_usb_priv(ar);
+
+	return device->pipes[pipe_id].urb_cnt;
+}
+
+static void hif_detach_htc(struct ath6kl *ar)
+{
+	struct ath6kl_usb *device = ath6kl_usb_priv(ar);
+
+	ath6kl_usb_flush_all(device);
+}
+
 static int ath6kl_usb_submit_ctrl_out(struct ath6kl_usb *ar_usb,
 				   u8 req, u16 value, u16 index, void *data,
 				   u32 size)
@@ -301,14 +1022,21 @@ static int ath6kl_usb_bmi_write(struct ath6kl *ar, u8 *buf, u32 len)
 
 static int ath6kl_usb_power_on(struct ath6kl *ar)
 {
+	hif_start(ar);
 	return 0;
 }
 
 static int ath6kl_usb_power_off(struct ath6kl *ar)
 {
+	hif_detach_htc(ar);
 	return 0;
 }
 
+static void ath6kl_usb_stop(struct ath6kl *ar)
+{
+	hif_stop(ar);
+}
+
 static const struct ath6kl_hif_ops ath6kl_usb_ops = {
 	.diag_read32 = ath6kl_usb_diag_read32,
 	.diag_write32 = ath6kl_usb_diag_write32,
@@ -316,6 +1044,11 @@ static const struct ath6kl_hif_ops ath6kl_usb_ops = {
 	.bmi_write = ath6kl_usb_bmi_write,
 	.power_on = ath6kl_usb_power_on,
 	.power_off = ath6kl_usb_power_off,
+	.stop = ath6kl_usb_stop,
+	.pipe_send = ath6kl_usb_send,
+	.pipe_get_default = ath6kl_usb_get_default_pipe,
+	.pipe_map_service = ath6kl_usb_map_service_pipe,
+	.pipe_get_free_queue_number = ath6kl_usb_get_free_queue_number,
 };
 
 /* ath6kl usb driver registered functions */
@@ -368,7 +1101,7 @@ static int ath6kl_usb_probe(struct usb_interface *interface,
 
 	ar_usb->ar = ar;
 
-	ret = ath6kl_core_init(ar);
+	ret = ath6kl_core_init(ar, ATH6KL_HTC_TYPE_PIPE);
 	if (ret) {
 		ath6kl_err("Failed to init ath6kl core: %d\n", ret);
 		goto err_core_free;
@@ -392,6 +1125,46 @@ static void ath6kl_usb_remove(struct usb_interface *interface)
 	ath6kl_usb_device_detached(interface);
 }
 
+#ifdef CONFIG_PM
+
+static int ath6kl_usb_suspend(struct usb_interface *interface,
+			      pm_message_t message)
+{
+	struct ath6kl_usb *device;
+	device = usb_get_intfdata(interface);
+
+	ath6kl_usb_flush_all(device);
+	return 0;
+}
+
+static int ath6kl_usb_resume(struct usb_interface *interface)
+{
+	struct ath6kl_usb *device;
+	device = usb_get_intfdata(interface);
+
+	ath6kl_usb_post_recv_transfers(&device->pipes[ATH6KL_USB_PIPE_RX_DATA],
+				       ATH6KL_USB_RX_BUFFER_SIZE);
+	ath6kl_usb_post_recv_transfers(&device->pipes[ATH6KL_USB_PIPE_RX_DATA2],
+				       ATH6KL_USB_RX_BUFFER_SIZE);
+
+	return 0;
+}
+
+static int ath6kl_usb_reset_resume(struct usb_interface *intf)
+{
+	if (usb_get_intfdata(intf))
+		ath6kl_usb_remove(intf);
+	return 0;
+}
+
+#else
+
+#define ath6kl_usb_suspend NULL
+#define ath6kl_usb_resume NULL
+#define ath6kl_usb_reset_resume NULL
+
+#endif
+
 /* table of devices that work with this driver */
 static struct usb_device_id ath6kl_usb_ids[] = {
 	{USB_DEVICE(0x0cf3, 0x9374)},
@@ -403,8 +1176,12 @@ MODULE_DEVICE_TABLE(usb, ath6kl_usb_ids);
 static struct usb_driver ath6kl_usb_driver = {
 	.name = "ath6kl_usb",
 	.probe = ath6kl_usb_probe,
+	.suspend = ath6kl_usb_suspend,
+	.resume = ath6kl_usb_resume,
+	.reset_resume = ath6kl_usb_reset_resume,
 	.disconnect = ath6kl_usb_remove,
 	.id_table = ath6kl_usb_ids,
+	.supports_autosuspend = true,
 };
 
 static int ath6kl_usb_init(void)

drivers/net/wireless/ath/ath6kl/wmi.c

@@ -2882,6 +2882,43 @@ int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
 	return ret;
 }
 
+int ath6kl_wmi_set_htcap_cmd(struct wmi *wmi, u8 if_idx,
+			     enum ieee80211_band band,
+			     struct ath6kl_htcap *htcap)
+{
+	struct sk_buff *skb;
+	struct wmi_set_htcap_cmd *cmd;
+
+	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_set_htcap_cmd *) skb->data;
+
+	/*
+	 * NOTE: Band in firmware matches enum ieee80211_band, it is unlikely
+	 * this will be changed in firmware. If at all there is any change in
+	 * band value, the host needs to be fixed.
+	 */
+	cmd->band = band;
+	cmd->ht_enable = !!htcap->ht_enable;
+	cmd->ht20_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_20);
+	cmd->ht40_supported =
+		!!(htcap->cap_info & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+	cmd->ht40_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_40);
+	cmd->intolerant_40mhz =
+		!!(htcap->cap_info & IEEE80211_HT_CAP_40MHZ_INTOLERANT);
+	cmd->max_ampdu_len_exp = htcap->ampdu_factor;
+
+	ath6kl_dbg(ATH6KL_DBG_WMI,
+		   "Set htcap: band:%d ht_enable:%d 40mhz:%d sgi_20mhz:%d sgi_40mhz:%d 40mhz_intolerant:%d ampdu_len_exp:%d\n",
+		   cmd->band, cmd->ht_enable, cmd->ht40_supported,
+		   cmd->ht20_sgi, cmd->ht40_sgi, cmd->intolerant_40mhz,
+		   cmd->max_ampdu_len_exp);
+	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_HT_CAP_CMDID,
+				   NO_SYNC_WMIFLAG);
+}
+
 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len)
 {
 	struct sk_buff *skb;
@@ -3032,6 +3069,9 @@ int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac,
 	cm->reason = cpu_to_le16(reason);
 	cm->cmd = cmd;
 
+	ath6kl_dbg(ATH6KL_DBG_WMI, "ap_set_mlme: cmd=%d reason=%d\n", cm->cmd,
+		   cm->reason);
+
 	return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID,
 				   NO_SYNC_WMIFLAG);
 }
@@ -3181,6 +3221,29 @@ int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
 				   NO_SYNC_WMIFLAG);
 }
 
+int ath6kl_wmi_set_ie_cmd(struct wmi *wmi, u8 if_idx, u8 ie_id, u8 ie_field,
+			  const u8 *ie_info, u8 ie_len)
+{
+	struct sk_buff *skb;
+	struct wmi_set_ie_cmd *p;
+
+	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
+	if (!skb)
+		return -ENOMEM;
+
+	ath6kl_dbg(ATH6KL_DBG_WMI, "set_ie_cmd: ie_id=%u ie_ie_field=%u ie_len=%u\n",
+		   ie_id, ie_field, ie_len);
+	p = (struct wmi_set_ie_cmd *) skb->data;
+	p->ie_id = ie_id;
+	p->ie_field = ie_field;
+	p->ie_len = ie_len;
+	if (ie_info && ie_len > 0)
+		memcpy(p->ie_info, ie_info, ie_len);
+
+	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IE_CMDID,
+				   NO_SYNC_WMIFLAG);
+}
+
 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable)
 {
 	struct sk_buff *skb;
@@ -3392,6 +3455,23 @@ int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx)
 				     WMI_CANCEL_REMAIN_ON_CHNL_CMDID);
 }
 
+int ath6kl_wmi_set_inact_period(struct wmi *wmi, u8 if_idx, int inact_timeout)
+{
+	struct sk_buff *skb;
+	struct wmi_set_inact_period_cmd *cmd;
+
+	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_set_inact_period_cmd *) skb->data;
+	cmd->inact_period = cpu_to_le32(inact_timeout);
+	cmd->num_null_func = 0;
+
+	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_CONN_INACT_CMDID,
+				   NO_SYNC_WMIFLAG);
+}
+
 static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb)
 {
 	struct wmix_cmd_hdr *cmd;

drivers/net/wireless/ath/ath6kl/wmi.h

@@ -182,6 +182,9 @@ enum wmi_data_hdr_flags {
 #define WMI_DATA_HDR_META_MASK      0x7
 #define WMI_DATA_HDR_META_SHIFT     13
 
+#define WMI_DATA_HDR_PAD_BEFORE_DATA_MASK               0xFF
+#define WMI_DATA_HDR_PAD_BEFORE_DATA_SHIFT              0x8
+
 /* Macros for operating on WMI_DATA_HDR (info3) field */
 #define WMI_DATA_HDR_IF_IDX_MASK    0xF
 
@@ -423,6 +426,7 @@ enum wmi_cmd_id {
 	WMI_SET_FRAMERATES_CMDID,
 	WMI_SET_AP_PS_CMDID,
 	WMI_SET_QOS_SUPP_CMDID,
+	WMI_SET_IE_CMDID,
 
 	/* WMI_THIN_RESERVED_... mark the start and end
 	 * values for WMI_THIN_RESERVED command IDs. These
@@ -629,6 +633,11 @@ enum wmi_mgmt_frame_type {
 	WMI_NUM_MGMT_FRAME
 };
 
+enum wmi_ie_field_type {
+	WMI_RSN_IE_CAPB	= 0x1,
+	WMI_IE_FULL	= 0xFF,  /* indicats full IE */
+};
+
 /* WMI_CONNECT_CMDID  */
 enum network_type {
 	INFRA_NETWORK = 0x01,
@@ -1268,6 +1277,16 @@ struct wmi_mcast_filter_add_del_cmd {
 	u8 mcast_mac[ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE];
 } __packed;
 
+struct wmi_set_htcap_cmd {
+	u8 band;
+	u8 ht_enable;
+	u8 ht40_supported;
+	u8 ht20_sgi;
+	u8 ht40_sgi;
+	u8 intolerant_40mhz;
+	u8 max_ampdu_len_exp;
+} __packed;
+
 /* Command Replies */
 
 /* WMI_GET_CHANNEL_LIST_CMDID reply */
@@ -1913,6 +1932,14 @@ struct wmi_set_appie_cmd {
 	u8 ie_info[0];
 } __packed;
 
+struct wmi_set_ie_cmd {
+	u8 ie_id;
+	u8 ie_field;	/* enum wmi_ie_field_type */
+	u8 ie_len;
+	u8 reserved;
+	u8 ie_info[0];
+} __packed;
+
 /* Notify the WSC registration status to the target */
 #define WSC_REG_ACTIVE     1
 #define WSC_REG_INACTIVE   0
@@ -2141,6 +2168,11 @@ struct wmi_ap_hidden_ssid_cmd {
 	u8 hidden_ssid;
 } __packed;
 
+struct wmi_set_inact_period_cmd {
+	__le32 inact_period;
+	u8 num_null_func;
+} __packed;
+
 /* AP mode events */
 struct wmi_ap_set_apsd_cmd {
 	u8 enable;
@@ -2465,6 +2497,9 @@ int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi);
 int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg);
 int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
 				 u8 keep_alive_intvl);
+int ath6kl_wmi_set_htcap_cmd(struct wmi *wmi, u8 if_idx,
+			     enum ieee80211_band band,
+			     struct ath6kl_htcap *htcap);
 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len);
 
 s32 ath6kl_wmi_get_rate(s8 rate_index);
@@ -2515,6 +2550,9 @@ int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
 			     const u8 *ie, u8 ie_len);
 
+int ath6kl_wmi_set_ie_cmd(struct wmi *wmi, u8 if_idx, u8 ie_id, u8 ie_field,
+			  const u8 *ie_info, u8 ie_len);
+
 /* P2P */
 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable);
 
@@ -2538,6 +2576,8 @@ int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx);
 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
 			     const u8 *ie, u8 ie_len);
 
+int ath6kl_wmi_set_inact_period(struct wmi *wmi, u8 if_idx, int inact_timeout);
+
 void ath6kl_wmi_sscan_timer(unsigned long ptr);
 
 struct ath6kl_vif *ath6kl_get_vif_by_index(struct ath6kl *ar, u8 if_idx);