Merge remote-tracking branch 'wireless-next/master'

Conflicts:
	drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h

31 files changed, 4017 insertions, 733 deletions

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 17f33a62f6db..60ca52819247 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -15,8 +15,9 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
-#include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/amp.h>
+
+#include "a2mp.h"
+#include "amp.h"
 
 /* Global AMP Manager list */
 LIST_HEAD(amp_mgr_list);
@@ -75,33 +76,26 @@ u8 __next_ident(struct amp_mgr *mgr)
 	return mgr->ident;
 }
 
-static inline void __a2mp_cl_bredr(struct a2mp_cl *cl)
-{
-	cl->id = 0;
-	cl->type = 0;
-	cl->status = 1;
-}
-
 /* hci_dev_list shall be locked */
-static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl)
+static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl)
 {
-	int i = 0;
 	struct hci_dev *hdev;
+	int i = 1;
 
-	__a2mp_cl_bredr(cl);
+	cl[0].id = AMP_ID_BREDR;
+	cl[0].type = AMP_TYPE_BREDR;
+	cl[0].status = AMP_STATUS_BLUETOOTH_ONLY;
 
 	list_for_each_entry(hdev, &hci_dev_list, list) {
-		/* Iterate through AMP controllers */
-		if (hdev->id == HCI_BREDR_ID)
-			continue;
-
-		/* Starting from second entry */
-		if (++i >= num_ctrl)
-			return;
-
-		cl[i].id = hdev->id;
-		cl[i].type = hdev->amp_type;
-		cl[i].status = hdev->amp_status;
+		if (hdev->dev_type == HCI_AMP) {
+			cl[i].id = hdev->id;
+			cl[i].type = hdev->amp_type;
+			if (test_bit(HCI_UP, &hdev->flags))
+				cl[i].status = hdev->amp_status;
+			else
+				cl[i].status = AMP_STATUS_POWERED_DOWN;
+			i++;
+		}
 	}
 }
 
@@ -129,6 +123,7 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	struct a2mp_discov_rsp *rsp;
 	u16 ext_feat;
 	u8 num_ctrl;
+	struct hci_dev *hdev;
 
 	if (len < sizeof(*req))
 		return -EINVAL;
@@ -152,7 +147,14 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
 
 	read_lock(&hci_dev_list_lock);
 
-	num_ctrl = __hci_num_ctrl();
+	/* at minimum the BR/EDR needs to be listed */
+	num_ctrl = 1;
+
+	list_for_each_entry(hdev, &hci_dev_list, list) {
+		if (hdev->dev_type == HCI_AMP)
+			num_ctrl++;
+	}
+
 	len = num_ctrl * sizeof(struct a2mp_cl) + sizeof(*rsp);
 	rsp = kmalloc(len, GFP_ATOMIC);
 	if (!rsp) {
@@ -163,7 +165,7 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	rsp->mtu = __constant_cpu_to_le16(L2CAP_A2MP_DEFAULT_MTU);
 	rsp->ext_feat = 0;
 
-	__a2mp_add_cl(mgr, rsp->cl, num_ctrl);
+	__a2mp_add_cl(mgr, rsp->cl);
 
 	read_unlock(&hci_dev_list_lock);
 
@@ -208,7 +210,7 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
 		BT_DBG("Remote AMP id %d type %d status %d", cl->id, cl->type,
 		       cl->status);
 
-		if (cl->id != HCI_BREDR_ID && cl->type == HCI_AMP) {
+		if (cl->id != AMP_ID_BREDR && cl->type != AMP_TYPE_BREDR) {
 			struct a2mp_info_req req;
 
 			found = true;
@@ -344,7 +346,7 @@ static int a2mp_getampassoc_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	tmp = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC);
 
 	hdev = hci_dev_get(req->id);
-	if (!hdev || hdev->amp_type == HCI_BREDR || tmp) {
+	if (!hdev || hdev->amp_type == AMP_TYPE_BREDR || tmp) {
 		struct a2mp_amp_assoc_rsp rsp;
 		rsp.id = req->id;
 
@@ -451,7 +453,7 @@ static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	rsp.remote_id = req->local_id;
 
 	hdev = hci_dev_get(req->remote_id);
-	if (!hdev || hdev->amp_type != HCI_AMP) {
+	if (!hdev || hdev->amp_type == AMP_TYPE_BREDR) {
 		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
 		goto send_rsp;
 	}
@@ -535,7 +537,8 @@ static int a2mp_discphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 		goto send_rsp;
 	}
 
-	hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, mgr->l2cap_conn->dst);
+	hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK,
+				       &mgr->l2cap_conn->hcon->dst);
 	if (!hcon) {
 		BT_ERR("No phys link exist");
 		rsp.status = A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS;
@@ -871,7 +874,7 @@ void a2mp_send_getinfo_rsp(struct hci_dev *hdev)
 	rsp.id = hdev->id;
 	rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
 
-	if (hdev->amp_type != HCI_BREDR) {
+	if (hdev->amp_type != AMP_TYPE_BREDR) {
 		rsp.status = 0;
 		rsp.total_bw = cpu_to_le32(hdev->amp_total_bw);
 		rsp.max_bw = cpu_to_le32(hdev->amp_max_bw);
diff --git a/net/bluetooth/a2mp.h b/net/bluetooth/a2mp.h
new file mode 100644
index 000000000000..487b54c1308f
--- /dev/null
+++ b/net/bluetooth/a2mp.h
@@ -0,0 +1,150 @@
+/*
+   Copyright (c) 2010,2011 Code Aurora Forum.  All rights reserved.
+   Copyright (c) 2011,2012 Intel Corp.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 and
+   only version 2 as published by the Free Software Foundation.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+*/
+
+#ifndef __A2MP_H
+#define __A2MP_H
+
+#include <net/bluetooth/l2cap.h>
+
+#define A2MP_FEAT_EXT	0x8000
+
+enum amp_mgr_state {
+	READ_LOC_AMP_INFO,
+	READ_LOC_AMP_ASSOC,
+	READ_LOC_AMP_ASSOC_FINAL,
+	WRITE_REMOTE_AMP_ASSOC,
+};
+
+struct amp_mgr {
+	struct list_head	list;
+	struct l2cap_conn	*l2cap_conn;
+	struct l2cap_chan	*a2mp_chan;
+	struct l2cap_chan	*bredr_chan;
+	struct kref		kref;
+	__u8			ident;
+	__u8			handle;
+	unsigned long		state;
+	unsigned long		flags;
+
+	struct list_head	amp_ctrls;
+	struct mutex		amp_ctrls_lock;
+};
+
+struct a2mp_cmd {
+	__u8	code;
+	__u8	ident;
+	__le16	len;
+	__u8	data[0];
+} __packed;
+
+/* A2MP command codes */
+#define A2MP_COMMAND_REJ         0x01
+struct a2mp_cmd_rej {
+	__le16	reason;
+	__u8	data[0];
+} __packed;
+
+#define A2MP_DISCOVER_REQ        0x02
+struct a2mp_discov_req {
+	__le16	mtu;
+	__le16	ext_feat;
+} __packed;
+
+struct a2mp_cl {
+	__u8	id;
+	__u8	type;
+	__u8	status;
+} __packed;
+
+#define A2MP_DISCOVER_RSP        0x03
+struct a2mp_discov_rsp {
+	__le16     mtu;
+	__le16     ext_feat;
+	struct a2mp_cl cl[0];
+} __packed;
+
+#define A2MP_CHANGE_NOTIFY       0x04
+#define A2MP_CHANGE_RSP          0x05
+
+#define A2MP_GETINFO_REQ         0x06
+struct a2mp_info_req {
+	__u8       id;
+} __packed;
+
+#define A2MP_GETINFO_RSP         0x07
+struct a2mp_info_rsp {
+	__u8	id;
+	__u8	status;
+	__le32	total_bw;
+	__le32	max_bw;
+	__le32	min_latency;
+	__le16	pal_cap;
+	__le16	assoc_size;
+} __packed;
+
+#define A2MP_GETAMPASSOC_REQ     0x08
+struct a2mp_amp_assoc_req {
+	__u8	id;
+} __packed;
+
+#define A2MP_GETAMPASSOC_RSP     0x09
+struct a2mp_amp_assoc_rsp {
+	__u8	id;
+	__u8	status;
+	__u8	amp_assoc[0];
+} __packed;
+
+#define A2MP_CREATEPHYSLINK_REQ  0x0A
+#define A2MP_DISCONNPHYSLINK_REQ 0x0C
+struct a2mp_physlink_req {
+	__u8	local_id;
+	__u8	remote_id;
+	__u8	amp_assoc[0];
+} __packed;
+
+#define A2MP_CREATEPHYSLINK_RSP  0x0B
+#define A2MP_DISCONNPHYSLINK_RSP 0x0D
+struct a2mp_physlink_rsp {
+	__u8	local_id;
+	__u8	remote_id;
+	__u8	status;
+} __packed;
+
+/* A2MP response status */
+#define A2MP_STATUS_SUCCESS			0x00
+#define A2MP_STATUS_INVALID_CTRL_ID		0x01
+#define A2MP_STATUS_UNABLE_START_LINK_CREATION	0x02
+#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS	0x02
+#define A2MP_STATUS_COLLISION_OCCURED		0x03
+#define A2MP_STATUS_DISCONN_REQ_RECVD		0x04
+#define A2MP_STATUS_PHYS_LINK_EXISTS		0x05
+#define A2MP_STATUS_SECURITY_VIOLATION		0x06
+
+extern struct list_head amp_mgr_list;
+extern struct mutex amp_mgr_list_lock;
+
+struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr);
+int amp_mgr_put(struct amp_mgr *mgr);
+u8 __next_ident(struct amp_mgr *mgr);
+struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
+				       struct sk_buff *skb);
+struct amp_mgr *amp_mgr_lookup_by_state(u8 state);
+void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data);
+void a2mp_discover_amp(struct l2cap_chan *chan);
+void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
+void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
+void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status);
+void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status);
+
+#endif /* __A2MP_H */
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index e6e1278dca89..1f1a1118f489 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -30,7 +30,7 @@
 #include <net/bluetooth/bluetooth.h>
 #include <linux/proc_fs.h>
 
-#define VERSION "2.16"
+#define VERSION "2.17"
 
 /* Bluetooth sockets */
 #define BT_MAX_PROTO	8
@@ -221,12 +221,12 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (flags & (MSG_OOB))
 		return -EOPNOTSUPP;
 
-	msg->msg_namelen = 0;
-
 	skb = skb_recv_datagram(sk, flags, noblock, &err);
 	if (!skb) {
-		if (sk->sk_shutdown & RCV_SHUTDOWN)
+		if (sk->sk_shutdown & RCV_SHUTDOWN) {
+			msg->msg_namelen = 0;
 			return 0;
+		}
 		return err;
 	}
 
@@ -238,9 +238,16 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 
 	skb_reset_transport_header(skb);
 	err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
-	if (err == 0)
+	if (err == 0) {
 		sock_recv_ts_and_drops(msg, sk, skb);
 
+		if (bt_sk(sk)->skb_msg_name)
+			bt_sk(sk)->skb_msg_name(skb, msg->msg_name,
+						&msg->msg_namelen);
+		else
+			msg->msg_namelen = 0;
+	}
+
 	skb_free_datagram(sk, skb);
 
 	return err ? : copied;
@@ -604,7 +611,7 @@ static int bt_seq_show(struct seq_file *seq, void *v)
 	struct bt_sock_list *l = s->l;
 
 	if (v == SEQ_START_TOKEN) {
-		seq_puts(seq ,"sk               RefCnt Rmem   Wmem   User   Inode  Src Dst Parent");
+		seq_puts(seq ,"sk               RefCnt Rmem   Wmem   User   Inode  Parent");
 
 		if (l->custom_seq_show) {
 			seq_putc(seq, ' ');
@@ -617,15 +624,13 @@ static int bt_seq_show(struct seq_file *seq, void *v)
 		struct bt_sock *bt = bt_sk(sk);
 
 		seq_printf(seq,
-			   "%pK %-6d %-6u %-6u %-6u %-6lu %pMR %pMR %-6lu",
+			   "%pK %-6d %-6u %-6u %-6u %-6lu %-6lu",
 			   sk,
 			   atomic_read(&sk->sk_refcnt),
 			   sk_rmem_alloc_get(sk),
 			   sk_wmem_alloc_get(sk),
 			   from_kuid(seq_user_ns(seq), sock_i_uid(sk)),
 			   sock_i_ino(sk),
-			   &bt->src,
-			   &bt->dst,
 			   bt->parent? sock_i_ino(bt->parent): 0LU);
 
 		if (l->custom_seq_show) {
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index d459ed43c779..bb39509b3f06 100644
--- a/net/bluetooth/amp.c
+++ b/net/bluetooth/amp.c
@@ -14,10 +14,11 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci.h>
 #include <net/bluetooth/hci_core.h>
-#include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/amp.h>
 #include <crypto/hash.h>
 
+#include "a2mp.h"
+#include "amp.h"
+
 /* Remote AMP Controllers interface */
 void amp_ctrl_get(struct amp_ctrl *ctrl)
 {
@@ -110,7 +111,7 @@ static u8 __next_handle(struct amp_mgr *mgr)
 struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr,
 			     u8 remote_id, bool out)
 {
-	bdaddr_t *dst = mgr->l2cap_conn->dst;
+	bdaddr_t *dst = &mgr->l2cap_conn->hcon->dst;
 	struct hci_conn *hcon;
 
 	hcon = hci_conn_add(hdev, AMP_LINK, dst);
@@ -409,7 +410,8 @@ void amp_create_logical_link(struct l2cap_chan *chan)
 	struct hci_cp_create_accept_logical_link cp;
 	struct hci_dev *hdev;
 
-	BT_DBG("chan %p hs_hcon %p dst %pMR", chan, hs_hcon, chan->conn->dst);
+	BT_DBG("chan %p hs_hcon %p dst %pMR", chan, hs_hcon,
+	       &chan->conn->hcon->dst);
 
 	if (!hs_hcon)
 		return;
diff --git a/net/bluetooth/amp.h b/net/bluetooth/amp.h
new file mode 100644
index 000000000000..7ea3db77ba89
--- /dev/null
+++ b/net/bluetooth/amp.h
@@ -0,0 +1,54 @@
+/*
+   Copyright (c) 2011,2012 Intel Corp.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 and
+   only version 2 as published by the Free Software Foundation.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+*/
+
+#ifndef __AMP_H
+#define __AMP_H
+
+struct amp_ctrl {
+	struct list_head	list;
+	struct kref		kref;
+	__u8			id;
+	__u16			assoc_len_so_far;
+	__u16			assoc_rem_len;
+	__u16			assoc_len;
+	__u8			*assoc;
+};
+
+int amp_ctrl_put(struct amp_ctrl *ctrl);
+void amp_ctrl_get(struct amp_ctrl *ctrl);
+struct amp_ctrl *amp_ctrl_add(struct amp_mgr *mgr, u8 id);
+struct amp_ctrl *amp_ctrl_lookup(struct amp_mgr *mgr, u8 id);
+void amp_ctrl_list_flush(struct amp_mgr *mgr);
+
+struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr,
+			     u8 remote_id, bool out);
+
+int phylink_gen_key(struct hci_conn *hcon, u8 *data, u8 *len, u8 *type);
+
+void amp_read_loc_info(struct hci_dev *hdev, struct amp_mgr *mgr);
+void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle);
+void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr);
+void amp_read_loc_assoc_final_data(struct hci_dev *hdev,
+				   struct hci_conn *hcon);
+void amp_create_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
+			struct hci_conn *hcon);
+void amp_accept_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
+			struct hci_conn *hcon);
+void amp_write_remote_assoc(struct hci_dev *hdev, u8 handle);
+void amp_write_rem_assoc_continue(struct hci_dev *hdev, u8 handle);
+void amp_physical_cfm(struct hci_conn *bredr_hcon, struct hci_conn *hs_hcon);
+void amp_create_logical_link(struct l2cap_chan *chan);
+void amp_disconnect_logical_link(struct hci_chan *hchan);
+void amp_destroy_logical_link(struct hci_chan *hchan, u8 reason);
+
+#endif /* __AMP_H */
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index e430b1abcd2f..a841d3e776c5 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -32,6 +32,7 @@
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/hci_core.h>
 
 #include "bnep.h"
@@ -510,20 +511,13 @@ static int bnep_session(void *arg)
 
 static struct device *bnep_get_device(struct bnep_session *session)
 {
-	bdaddr_t *src = &bt_sk(session->sock->sk)->src;
-	bdaddr_t *dst = &bt_sk(session->sock->sk)->dst;
-	struct hci_dev *hdev;
 	struct hci_conn *conn;
 
-	hdev = hci_get_route(dst, src);
-	if (!hdev)
+	conn = l2cap_pi(session->sock->sk)->chan->conn->hcon;
+	if (!conn)
 		return NULL;
 
-	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
-
-	hci_dev_put(hdev);
-
-	return conn ? &conn->dev : NULL;
+	return &conn->dev;
 }
 
 static struct device_type bnep_type = {
@@ -539,8 +533,8 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
 
 	BT_DBG("");
 
-	baswap((void *) dst, &bt_sk(sock->sk)->dst);
-	baswap((void *) src, &bt_sk(sock->sk)->src);
+	baswap((void *) dst, &l2cap_pi(sock->sk)->chan->dst);
+	baswap((void *) src, &l2cap_pi(sock->sk)->chan->src);
 
 	/* session struct allocated as private part of net_device */
 	dev = alloc_netdev(sizeof(struct bnep_session),
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index e0a6ebf2baa6..67fe5e84e68f 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -340,20 +340,20 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
 
 	down_write(&cmtp_session_sem);
 
-	s = __cmtp_get_session(&bt_sk(sock->sk)->dst);
+	s = __cmtp_get_session(&l2cap_pi(sock->sk)->chan->dst);
 	if (s && s->state == BT_CONNECTED) {
 		err = -EEXIST;
 		goto failed;
 	}
 
-	bacpy(&session->bdaddr, &bt_sk(sock->sk)->dst);
+	bacpy(&session->bdaddr, &l2cap_pi(sock->sk)->chan->dst);
 
 	session->mtu = min_t(uint, l2cap_pi(sock->sk)->chan->omtu,
 					l2cap_pi(sock->sk)->chan->imtu);
 
 	BT_DBG("mtu %d", session->mtu);
 
-	sprintf(session->name, "%pMR", &bt_sk(sock->sk)->dst);
+	sprintf(session->name, "%pMR", &session->bdaddr);
 
 	session->sock  = sock;
 	session->state = BT_CONFIG;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 514148b7a66b..ff04b051792d 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -28,8 +28,9 @@
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
-#include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/smp.h>
+
+#include "smp.h"
+#include "a2mp.h"
 
 struct sco_param {
 	u16 pkt_type;
@@ -49,30 +50,6 @@ static const struct sco_param sco_param_wideband[] = {
 	{ EDR_ESCO_MASK | ESCO_EV3,   0x0008 }, /* T1 */
 };
 
-static void hci_le_create_connection(struct hci_conn *conn)
-{
-	struct hci_dev *hdev = conn->hdev;
-	struct hci_cp_le_create_conn cp;
-
-	conn->state = BT_CONNECT;
-	conn->out = true;
-	conn->link_mode |= HCI_LM_MASTER;
-	conn->sec_level = BT_SECURITY_LOW;
-
-	memset(&cp, 0, sizeof(cp));
-	cp.scan_interval = __constant_cpu_to_le16(0x0060);
-	cp.scan_window = __constant_cpu_to_le16(0x0030);
-	bacpy(&cp.peer_addr, &conn->dst);
-	cp.peer_addr_type = conn->dst_type;
-	cp.conn_interval_min = __constant_cpu_to_le16(0x0028);
-	cp.conn_interval_max = __constant_cpu_to_le16(0x0038);
-	cp.supervision_timeout = __constant_cpu_to_le16(0x002a);
-	cp.min_ce_len = __constant_cpu_to_le16(0x0000);
-	cp.max_ce_len = __constant_cpu_to_le16(0x0000);
-
-	hci_send_cmd(hdev, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp);
-}
-
 static void hci_le_create_connection_cancel(struct hci_conn *conn)
 {
 	hci_send_cmd(conn->hdev, HCI_OP_LE_CREATE_CONN_CANCEL, 0, NULL);
@@ -404,6 +381,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
 		return NULL;
 
 	bacpy(&conn->dst, dst);
+	bacpy(&conn->src, &hdev->bdaddr);
 	conn->hdev  = hdev;
 	conn->type  = type;
 	conn->mode  = HCI_CM_ACTIVE;
@@ -546,34 +524,128 @@ struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src)
 }
 EXPORT_SYMBOL(hci_get_route);
 
+static void create_le_conn_complete(struct hci_dev *hdev, u8 status)
+{
+	struct hci_conn *conn;
+
+	if (status == 0)
+		return;
+
+	BT_ERR("HCI request failed to create LE connection: status 0x%2.2x",
+	       status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
+	if (!conn)
+		goto done;
+
+	conn->state = BT_CLOSED;
+
+	mgmt_connect_failed(hdev, &conn->dst, conn->type, conn->dst_type,
+			    status);
+
+	hci_proto_connect_cfm(conn, status);
+
+	hci_conn_del(conn);
+
+done:
+	hci_dev_unlock(hdev);
+}
+
+static int hci_create_le_conn(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_le_create_conn cp;
+	struct hci_request req;
+	int err;
+
+	hci_req_init(&req, hdev);
+
+	memset(&cp, 0, sizeof(cp));
+	cp.scan_interval = cpu_to_le16(hdev->le_scan_interval);
+	cp.scan_window = cpu_to_le16(hdev->le_scan_window);
+	bacpy(&cp.peer_addr, &conn->dst);
+	cp.peer_addr_type = conn->dst_type;
+	cp.own_address_type = conn->src_type;
+	cp.conn_interval_min = __constant_cpu_to_le16(0x0028);
+	cp.conn_interval_max = __constant_cpu_to_le16(0x0038);
+	cp.supervision_timeout = __constant_cpu_to_le16(0x002a);
+	cp.min_ce_len = __constant_cpu_to_le16(0x0000);
+	cp.max_ce_len = __constant_cpu_to_le16(0x0000);
+	hci_req_add(&req, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp);
+
+	err = hci_req_run(&req, create_le_conn_complete);
+	if (err) {
+		hci_conn_del(conn);
+		return err;
+	}
+
+	return 0;
+}
+
 static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 				    u8 dst_type, u8 sec_level, u8 auth_type)
 {
-	struct hci_conn *le;
+	struct hci_conn *conn;
+	int err;
 
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->flags))
+	if (test_bit(HCI_ADVERTISING, &hdev->flags))
 		return ERR_PTR(-ENOTSUPP);
 
-	le = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst);
-	if (!le) {
-		le = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
-		if (le)
-			return ERR_PTR(-EBUSY);
+	/* Some devices send ATT messages as soon as the physical link is
+	 * established. To be able to handle these ATT messages, the user-
+	 * space first establishes the connection and then starts the pairing
+	 * process.
+	 *
+	 * So if a hci_conn object already exists for the following connection
+	 * attempt, we simply update pending_sec_level and auth_type fields
+	 * and return the object found.
+	 */
+	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst);
+	if (conn) {
+		conn->pending_sec_level = sec_level;
+		conn->auth_type = auth_type;
+		goto done;
+	}
 
-		le = hci_conn_add(hdev, LE_LINK, dst);
-		if (!le)
-			return ERR_PTR(-ENOMEM);
+	/* Since the controller supports only one LE connection attempt at a
+	 * time, we return -EBUSY if there is any connection attempt running.
+	 */
+	conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
+	if (conn)
+		return ERR_PTR(-EBUSY);
+
+	conn = hci_conn_add(hdev, LE_LINK, dst);
+	if (!conn)
+		return ERR_PTR(-ENOMEM);
 
-		le->dst_type = bdaddr_to_le(dst_type);
-		hci_le_create_connection(le);
+	if (dst_type == BDADDR_LE_PUBLIC)
+		conn->dst_type = ADDR_LE_DEV_PUBLIC;
+	else
+		conn->dst_type = ADDR_LE_DEV_RANDOM;
+
+	if (bacmp(&conn->src, BDADDR_ANY)) {
+		conn->src_type = ADDR_LE_DEV_PUBLIC;
+	} else {
+		bacpy(&conn->src, &hdev->static_addr);
+		conn->src_type = ADDR_LE_DEV_RANDOM;
 	}
 
-	le->pending_sec_level = sec_level;
-	le->auth_type = auth_type;
+	conn->state = BT_CONNECT;
+	conn->out = true;
+	conn->link_mode |= HCI_LM_MASTER;
+	conn->sec_level = BT_SECURITY_LOW;
+	conn->pending_sec_level = sec_level;
+	conn->auth_type = auth_type;
 
-	hci_conn_hold(le);
+	err = hci_create_le_conn(conn);
+	if (err)
+		return ERR_PTR(err);
 
-	return le;
+done:
+	hci_conn_hold(conn);
+	return conn;
 }
 
 static struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 82dbdc6a7e9e..7add9c96e32c 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -307,11 +307,23 @@ static void amp_init(struct hci_request *req)
 	/* Read Local Version */
 	hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL);
 
+	/* Read Local Supported Commands */
+	hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
+
+	/* Read Local Supported Features */
+	hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
+
 	/* Read Local AMP Info */
 	hci_req_add(req, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL);
 
 	/* Read Data Blk size */
 	hci_req_add(req, HCI_OP_READ_DATA_BLOCK_SIZE, 0, NULL);
+
+	/* Read Flow Control Mode */
+	hci_req_add(req, HCI_OP_READ_FLOW_CONTROL_MODE, 0, NULL);
+
+	/* Read Location Data */
+	hci_req_add(req, HCI_OP_READ_LOCATION_DATA, 0, NULL);
 }
 
 static void hci_init1_req(struct hci_request *req, unsigned long opt)
@@ -341,6 +353,8 @@ static void hci_init1_req(struct hci_request *req, unsigned long opt)
 
 static void bredr_setup(struct hci_request *req)
 {
+	struct hci_dev *hdev = req->hdev;
+
 	__le16 param;
 	__u8 flt_type;
 
@@ -356,6 +370,12 @@ static void bredr_setup(struct hci_request *req)
 	/* Read Voice Setting */
 	hci_req_add(req, HCI_OP_READ_VOICE_SETTING, 0, NULL);
 
+	/* Read Number of Supported IAC */
+	hci_req_add(req, HCI_OP_READ_NUM_SUPPORTED_IAC, 0, NULL);
+
+	/* Read Current IAC LAP */
+	hci_req_add(req, HCI_OP_READ_CURRENT_IAC_LAP, 0, NULL);
+
 	/* Clear Event Filters */
 	flt_type = HCI_FLT_CLEAR_ALL;
 	hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
@@ -364,8 +384,10 @@ static void bredr_setup(struct hci_request *req)
 	param = __constant_cpu_to_le16(0x7d00);
 	hci_req_add(req, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
 
-	/* Read page scan parameters */
-	if (req->hdev->hci_ver > BLUETOOTH_VER_1_1) {
+	/* AVM Berlin (31), aka "BlueFRITZ!", reports version 1.2,
+	 * but it does not support page scan related HCI commands.
+	 */
+	if (hdev->manufacturer != 31 && hdev->hci_ver > BLUETOOTH_VER_1_1) {
 		hci_req_add(req, HCI_OP_READ_PAGE_SCAN_ACTIVITY, 0, NULL);
 		hci_req_add(req, HCI_OP_READ_PAGE_SCAN_TYPE, 0, NULL);
 	}
@@ -1036,6 +1058,11 @@ int hci_inquiry(void __user *arg)
 		goto done;
 	}
 
+	if (hdev->dev_type != HCI_BREDR) {
+		err = -EOPNOTSUPP;
+		goto done;
+	}
+
 	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
 		err = -EOPNOTSUPP;
 		goto done;
@@ -1105,7 +1132,7 @@ static u8 create_ad(struct hci_dev *hdev, u8 *ptr)
 	u8 ad_len = 0, flags = 0;
 	size_t name_len;
 
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
 		flags |= LE_AD_GENERAL;
 
 	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
@@ -1196,13 +1223,29 @@ static int hci_dev_do_open(struct hci_dev *hdev)
 		goto done;
 	}
 
-	/* Check for rfkill but allow the HCI setup stage to proceed
-	 * (which in itself doesn't cause any RF activity).
-	 */
-	if (test_bit(HCI_RFKILLED, &hdev->dev_flags) &&
-	    !test_bit(HCI_SETUP, &hdev->dev_flags)) {
-		ret = -ERFKILL;
-		goto done;
+	if (!test_bit(HCI_SETUP, &hdev->dev_flags)) {
+		/* Check for rfkill but allow the HCI setup stage to
+		 * proceed (which in itself doesn't cause any RF activity).
+		 */
+		if (test_bit(HCI_RFKILLED, &hdev->dev_flags)) {
+			ret = -ERFKILL;
+			goto done;
+		}
+
+		/* Check for valid public address or a configured static
+		 * random adddress, but let the HCI setup proceed to
+		 * be able to determine if there is a public address
+		 * or not.
+		 *
+		 * This check is only valid for BR/EDR controllers
+		 * since AMP controllers do not have an address.
+		 */
+		if (hdev->dev_type == HCI_BREDR &&
+		    !bacmp(&hdev->bdaddr, BDADDR_ANY) &&
+		    !bacmp(&hdev->static_addr, BDADDR_ANY)) {
+			ret = -EADDRNOTAVAIL;
+			goto done;
+		}
 	}
 
 	if (test_bit(HCI_UP, &hdev->flags)) {
@@ -1238,7 +1281,7 @@ static int hci_dev_do_open(struct hci_dev *hdev)
 		hci_notify(hdev, HCI_DEV_UP);
 		if (!test_bit(HCI_SETUP, &hdev->dev_flags) &&
 		    !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) &&
-		    mgmt_valid_hdev(hdev)) {
+		    hdev->dev_type == HCI_BREDR) {
 			hci_dev_lock(hdev);
 			mgmt_powered(hdev, 1);
 			hci_dev_unlock(hdev);
@@ -1288,6 +1331,10 @@ int hci_dev_open(__u16 dev)
 	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags))
 		cancel_delayed_work(&hdev->power_off);
 
+	/* After this call it is guaranteed that the setup procedure
+	 * has finished. This means that error conditions like RFKILL
+	 * or no valid public or static random address apply.
+	 */
 	flush_workqueue(hdev->req_workqueue);
 
 	err = hci_dev_do_open(hdev);
@@ -1341,6 +1388,7 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	skb_queue_purge(&hdev->cmd_q);
 	atomic_set(&hdev->cmd_cnt, 1);
 	if (!test_bit(HCI_RAW, &hdev->flags) &&
+	    !test_bit(HCI_AUTO_OFF, &hdev->dev_flags) &&
 	    test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) {
 		set_bit(HCI_INIT, &hdev->flags);
 		__hci_req_sync(hdev, hci_reset_req, 0, HCI_CMD_TIMEOUT);
@@ -1373,15 +1421,16 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	hdev->flags = 0;
 	hdev->dev_flags &= ~HCI_PERSISTENT_MASK;
 
-	if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags) &&
-	    mgmt_valid_hdev(hdev)) {
-		hci_dev_lock(hdev);
-		mgmt_powered(hdev, 0);
-		hci_dev_unlock(hdev);
+	if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
+		if (hdev->dev_type == HCI_BREDR) {
+			hci_dev_lock(hdev);
+			mgmt_powered(hdev, 0);
+			hci_dev_unlock(hdev);
+		}
 	}
 
 	/* Controller radio is available but is currently powered down */
-	hdev->amp_status = 0;
+	hdev->amp_status = AMP_STATUS_POWERED_DOWN;
 
 	memset(hdev->eir, 0, sizeof(hdev->eir));
 	memset(hdev->dev_class, 0, sizeof(hdev->dev_class));
@@ -1500,6 +1549,11 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 		goto done;
 	}
 
+	if (hdev->dev_type != HCI_BREDR) {
+		err = -EOPNOTSUPP;
+		goto done;
+	}
+
 	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
 		err = -EOPNOTSUPP;
 		goto done;
@@ -1703,7 +1757,14 @@ static void hci_power_on(struct work_struct *work)
 		return;
 	}
 
-	if (test_bit(HCI_RFKILLED, &hdev->dev_flags)) {
+	/* During the HCI setup phase, a few error conditions are
+	 * ignored and they need to be checked now. If they are still
+	 * valid, it is important to turn the device back off.
+	 */
+	if (test_bit(HCI_RFKILLED, &hdev->dev_flags) ||
+	    (hdev->dev_type == HCI_BREDR &&
+	     !bacmp(&hdev->bdaddr, BDADDR_ANY) &&
+	     !bacmp(&hdev->static_addr, BDADDR_ANY))) {
 		clear_bit(HCI_AUTO_OFF, &hdev->dev_flags);
 		hci_dev_do_close(hdev);
 	} else if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
@@ -2216,13 +2277,17 @@ struct hci_dev *hci_alloc_dev(void)
 	hdev->pkt_type  = (HCI_DM1 | HCI_DH1 | HCI_HV1);
 	hdev->esco_type = (ESCO_HV1);
 	hdev->link_mode = (HCI_LM_ACCEPT);
-	hdev->io_capability = 0x03; /* No Input No Output */
+	hdev->num_iac = 0x01;		/* One IAC support is mandatory */
+	hdev->io_capability = 0x03;	/* No Input No Output */
 	hdev->inq_tx_power = HCI_TX_POWER_INVALID;
 	hdev->adv_tx_power = HCI_TX_POWER_INVALID;
 
 	hdev->sniff_max_interval = 800;
 	hdev->sniff_min_interval = 80;
 
+	hdev->le_scan_interval = 0x0060;
+	hdev->le_scan_window = 0x0030;
+
 	mutex_init(&hdev->lock);
 	mutex_init(&hdev->req_lock);
 
@@ -2329,9 +2394,9 @@ int hci_register_dev(struct hci_dev *hdev)
 		set_bit(HCI_RFKILLED, &hdev->dev_flags);
 
 	set_bit(HCI_SETUP, &hdev->dev_flags);
+	set_bit(HCI_AUTO_OFF, &hdev->dev_flags);
 
-	if (hdev->dev_type != HCI_AMP) {
-		set_bit(HCI_AUTO_OFF, &hdev->dev_flags);
+	if (hdev->dev_type == HCI_BREDR) {
 		/* Assume BR/EDR support until proven otherwise (such as
 		 * through reading supported features during init.
 		 */
@@ -2435,9 +2500,8 @@ int hci_resume_dev(struct hci_dev *hdev)
 EXPORT_SYMBOL(hci_resume_dev);
 
 /* Receive frame from HCI drivers */
-int hci_recv_frame(struct sk_buff *skb)
+int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
 		      && !test_bit(HCI_INIT, &hdev->flags))) {
 		kfree_skb(skb);
@@ -2496,7 +2560,6 @@ static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
 		scb->expect = hlen;
 		scb->pkt_type = type;
 
-		skb->dev = (void *) hdev;
 		hdev->reassembly[index] = skb;
 	}
 
@@ -2556,7 +2619,7 @@ static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
 			/* Complete frame */
 
 			bt_cb(skb)->pkt_type = type;
-			hci_recv_frame(skb);
+			hci_recv_frame(hdev, skb);
 
 			hdev->reassembly[index] = NULL;
 			return remain;
@@ -2647,15 +2710,8 @@ int hci_unregister_cb(struct hci_cb *cb)
 }
 EXPORT_SYMBOL(hci_unregister_cb);
 
-static int hci_send_frame(struct sk_buff *skb)
+static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
-
-	if (!hdev) {
-		kfree_skb(skb);
-		return -ENODEV;
-	}
-
 	BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
 
 	/* Time stamp */
@@ -2672,7 +2728,8 @@ static int hci_send_frame(struct sk_buff *skb)
 	/* Get rid of skb owner, prior to sending to the driver. */
 	skb_orphan(skb);
 
-	return hdev->send(skb);
+	if (hdev->send(hdev, skb) < 0)
+		BT_ERR("%s sending frame failed", hdev->name);
 }
 
 void hci_req_init(struct hci_request *req, struct hci_dev *hdev)
@@ -2735,7 +2792,6 @@ static struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode,
 	BT_DBG("skb len %d", skb->len);
 
 	bt_cb(skb)->pkt_type = HCI_COMMAND_PKT;
-	skb->dev = (void *) hdev;
 
 	return skb;
 }
@@ -2879,7 +2935,6 @@ static void hci_queue_acl(struct hci_chan *chan, struct sk_buff_head *queue,
 		do {
 			skb = list; list = list->next;
 
-			skb->dev = (void *) hdev;
 			bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
 			hci_add_acl_hdr(skb, conn->handle, flags);
 
@@ -2898,8 +2953,6 @@ void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags)
 
 	BT_DBG("%s chan %p flags 0x%4.4x", hdev->name, chan, flags);
 
-	skb->dev = (void *) hdev;
-
 	hci_queue_acl(chan, &chan->data_q, skb, flags);
 
 	queue_work(hdev->workqueue, &hdev->tx_work);
@@ -2920,7 +2973,6 @@ void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
 	skb_reset_transport_header(skb);
 	memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE);
 
-	skb->dev = (void *) hdev;
 	bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
 
 	skb_queue_tail(&conn->data_q, skb);
@@ -3185,7 +3237,7 @@ static void hci_sched_acl_pkt(struct hci_dev *hdev)
 			hci_conn_enter_active_mode(chan->conn,
 						   bt_cb(skb)->force_active);
 
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 			hdev->acl_last_tx = jiffies;
 
 			hdev->acl_cnt--;
@@ -3237,7 +3289,7 @@ static void hci_sched_acl_blk(struct hci_dev *hdev)
 			hci_conn_enter_active_mode(chan->conn,
 						   bt_cb(skb)->force_active);
 
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 			hdev->acl_last_tx = jiffies;
 
 			hdev->block_cnt -= blocks;
@@ -3290,7 +3342,7 @@ static void hci_sched_sco(struct hci_dev *hdev)
 	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 
 			conn->sent++;
 			if (conn->sent == ~0)
@@ -3314,7 +3366,7 @@ static void hci_sched_esco(struct hci_dev *hdev)
 						     &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 
 			conn->sent++;
 			if (conn->sent == ~0)
@@ -3356,7 +3408,7 @@ static void hci_sched_le(struct hci_dev *hdev)
 
 			skb = skb_dequeue(&chan->data_q);
 
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 			hdev->le_last_tx = jiffies;
 
 			cnt--;
@@ -3392,7 +3444,7 @@ static void hci_tx_work(struct work_struct *work)
 
 	/* Send next queued raw (unknown type) packet */
 	while ((skb = skb_dequeue(&hdev->raw_q)))
-		hci_send_frame(skb);
+		hci_send_frame(hdev, skb);
 }
 
 /* ----- HCI RX task (incoming data processing) ----- */
@@ -3638,7 +3690,7 @@ static void hci_cmd_work(struct work_struct *work)
 		hdev->sent_cmd = skb_clone(skb, GFP_KERNEL);
 		if (hdev->sent_cmd) {
 			atomic_dec(&hdev->cmd_cnt);
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 			if (test_bit(HCI_RESET, &hdev->flags))
 				del_timer(&hdev->cmd_timer);
 			else
@@ -3650,15 +3702,3 @@ static void hci_cmd_work(struct work_struct *work)
 		}
 	}
 }
-
-u8 bdaddr_to_le(u8 bdaddr_type)
-{
-	switch (bdaddr_type) {
-	case BDADDR_LE_PUBLIC:
-		return ADDR_LE_DEV_PUBLIC;
-
-	default:
-		/* Fallback to LE Random address type */
-		return ADDR_LE_DEV_RANDOM;
-	}
-}
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 4785ab0795f5..5391469ff1a5 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -29,8 +29,9 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/mgmt.h>
-#include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/amp.h>
+
+#include "a2mp.h"
+#include "amp.h"
 
 /* Handle HCI Event packets */
 
@@ -417,6 +418,21 @@ static void hci_cc_write_voice_setting(struct hci_dev *hdev,
 		hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
 }
 
+static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
+					  struct sk_buff *skb)
+{
+	struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hdev->num_iac = rp->num_iac;
+
+	BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
+}
+
 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
@@ -918,12 +934,12 @@ static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
 
 	if (!status) {
 		if (*sent)
-			set_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+			set_bit(HCI_ADVERTISING, &hdev->dev_flags);
 		else
-			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+			clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
 	}
 
-	if (!test_bit(HCI_INIT, &hdev->flags)) {
+	if (*sent && !test_bit(HCI_INIT, &hdev->flags)) {
 		struct hci_request req;
 
 		hci_req_init(&req, hdev);
@@ -1005,7 +1021,7 @@ static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
 		} else {
 			hdev->features[1][0] &= ~LMP_HOST_LE;
 			clear_bit(HCI_LE_ENABLED, &hdev->dev_flags);
-			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+			clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
 		}
 
 		if (sent->simul)
@@ -1296,9 +1312,11 @@ static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
 		goto unlock;
 
 	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
-		struct hci_cp_auth_requested cp;
-		cp.handle = __cpu_to_le16(conn->handle);
-		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
+		struct hci_cp_auth_requested auth_cp;
+
+		auth_cp.handle = __cpu_to_le16(conn->handle);
+		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
+			     sizeof(auth_cp), &auth_cp);
 	}
 
 unlock:
@@ -1470,33 +1488,6 @@ static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
 	hci_dev_unlock(hdev);
 }
 
-static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
-{
-	struct hci_conn *conn;
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-	if (status) {
-		hci_dev_lock(hdev);
-
-		conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
-		if (!conn) {
-			hci_dev_unlock(hdev);
-			return;
-		}
-
-		BT_DBG("%s bdaddr %pMR conn %p", hdev->name, &conn->dst, conn);
-
-		conn->state = BT_CLOSED;
-		mgmt_connect_failed(hdev, &conn->dst, conn->type,
-				    conn->dst_type, status);
-		hci_proto_connect_cfm(conn, status);
-		hci_conn_del(conn);
-
-		hci_dev_unlock(hdev);
-	}
-}
-
 static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status)
 {
 	struct hci_cp_create_phy_link *cp;
@@ -1826,10 +1817,25 @@ static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	}
 
 	if (ev->status == 0) {
-		if (conn->type == ACL_LINK && conn->flush_key)
+		u8 type = conn->type;
+
+		if (type == ACL_LINK && conn->flush_key)
 			hci_remove_link_key(hdev, &conn->dst);
 		hci_proto_disconn_cfm(conn, ev->reason);
 		hci_conn_del(conn);
+
+		/* Re-enable advertising if necessary, since it might
+		 * have been disabled by the connection. From the
+		 * HCI_LE_Set_Advertise_Enable command description in
+		 * the core specification (v4.0):
+		 * "The Controller shall continue advertising until the Host
+		 * issues an LE_Set_Advertise_Enable command with
+		 * Advertising_Enable set to 0x00 (Advertising is disabled)
+		 * or until a connection is created or until the Advertising
+		 * is timed out due to Directed Advertising."
+		 */
+		if (type == LE_LINK)
+			mgmt_reenable_advertising(hdev);
 	}
 
 unlock:
@@ -2144,6 +2150,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_write_voice_setting(hdev, skb);
 		break;
 
+	case HCI_OP_READ_NUM_SUPPORTED_IAC:
+		hci_cc_read_num_supported_iac(hdev, skb);
+		break;
+
 	case HCI_OP_WRITE_SSP_MODE:
 		hci_cc_write_ssp_mode(hdev, skb);
 		break;
@@ -2347,10 +2357,6 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cs_disconnect(hdev, ev->status);
 		break;
 
-	case HCI_OP_LE_CREATE_CONN:
-		hci_cs_le_create_conn(hdev, ev->status);
-		break;
-
 	case HCI_OP_CREATE_PHY_LINK:
 		hci_cs_create_phylink(hdev, ev->status);
 		break;
@@ -3490,6 +3496,17 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 		conn->dst_type = ev->bdaddr_type;
 
+		/* The advertising parameters for own address type
+		 * define which source address and source address
+		 * type this connections has.
+		 */
+		if (bacmp(&conn->src, BDADDR_ANY)) {
+			conn->src_type = ADDR_LE_DEV_PUBLIC;
+		} else {
+			bacpy(&conn->src, &hdev->static_addr);
+			conn->src_type = ADDR_LE_DEV_RANDOM;
+		}
+
 		if (ev->role == LE_CONN_ROLE_MASTER) {
 			conn->out = true;
 			conn->link_mode |= HCI_LM_MASTER;
@@ -3645,8 +3662,8 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 	skb_pull(skb, HCI_EVENT_HDR_SIZE);
 
 	if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) {
-		struct hci_command_hdr *hdr = (void *) hdev->sent_cmd->data;
-		u16 opcode = __le16_to_cpu(hdr->opcode);
+		struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
+		u16 opcode = __le16_to_cpu(cmd_hdr->opcode);
 
 		hci_req_cmd_complete(hdev, opcode, 0);
 	}
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 579886186c3a..97f96ebdd56d 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -387,7 +387,6 @@ static void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
 	__net_timestamp(skb);
 
 	bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
-	skb->dev = (void *) hdev;
 	hci_send_to_sock(hdev, skb);
 	kfree_skb(skb);
 }
@@ -518,6 +517,9 @@ static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
 	if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags))
 		return -EBUSY;
 
+	if (hdev->dev_type != HCI_BREDR)
+		return -EOPNOTSUPP;
+
 	switch (cmd) {
 	case HCISETRAW:
 		if (!capable(CAP_NET_ADMIN))
@@ -550,10 +552,7 @@ static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
 		return hci_sock_blacklist_del(hdev, (void __user *) arg);
 	}
 
-	if (hdev->ioctl)
-		return hdev->ioctl(hdev, cmd, arg);
-
-	return -EINVAL;
+	return -ENOIOCTLCMD;
 }
 
 static int hci_sock_ioctl(struct socket *sock, unsigned int cmd,
@@ -942,7 +941,6 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 	bt_cb(skb)->pkt_type = *((unsigned char *) skb->data);
 	skb_pull(skb, 1);
-	skb->dev = (void *) hdev;
 
 	if (hci_pi(sk)->channel == HCI_CHANNEL_RAW &&
 	    bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) {
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index bdc35a7a7fee..292e619db896 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -767,10 +767,10 @@ static int hidp_setup_hid(struct hidp_session *session,
 	strncpy(hid->name, req->name, sizeof(req->name) - 1);
 
 	snprintf(hid->phys, sizeof(hid->phys), "%pMR",
-		 &bt_sk(session->ctrl_sock->sk)->src);
+		 &l2cap_pi(session->ctrl_sock->sk)->chan->src);
 
 	snprintf(hid->uniq, sizeof(hid->uniq), "%pMR",
-		 &bt_sk(session->ctrl_sock->sk)->dst);
+		 &l2cap_pi(session->ctrl_sock->sk)->chan->dst);
 
 	hid->dev.parent = &session->conn->hcon->dev;
 	hid->ll_driver = &hidp_hid_driver;
@@ -1283,23 +1283,29 @@ static int hidp_session_thread(void *arg)
 static int hidp_verify_sockets(struct socket *ctrl_sock,
 			       struct socket *intr_sock)
 {
+	struct l2cap_chan *ctrl_chan, *intr_chan;
 	struct bt_sock *ctrl, *intr;
 	struct hidp_session *session;
 
 	if (!l2cap_is_socket(ctrl_sock) || !l2cap_is_socket(intr_sock))
 		return -EINVAL;
 
+	ctrl_chan = l2cap_pi(ctrl_sock->sk)->chan;
+	intr_chan = l2cap_pi(intr_sock->sk)->chan;
+
+	if (bacmp(&ctrl_chan->src, &intr_chan->src) ||
+	    bacmp(&ctrl_chan->dst, &intr_chan->dst))
+		return -ENOTUNIQ;
+
 	ctrl = bt_sk(ctrl_sock->sk);
 	intr = bt_sk(intr_sock->sk);
 
-	if (bacmp(&ctrl->src, &intr->src) || bacmp(&ctrl->dst, &intr->dst))
-		return -ENOTUNIQ;
 	if (ctrl->sk.sk_state != BT_CONNECTED ||
 	    intr->sk.sk_state != BT_CONNECTED)
 		return -EBADFD;
 
 	/* early session check, we check again during session registration */
-	session = hidp_session_find(&ctrl->dst);
+	session = hidp_session_find(&ctrl_chan->dst);
 	if (session) {
 		hidp_session_put(session);
 		return -EEXIST;
@@ -1332,7 +1338,7 @@ int hidp_connection_add(struct hidp_connadd_req *req,
 	if (!conn)
 		return -EBADFD;
 
-	ret = hidp_session_new(&session, &bt_sk(ctrl_sock->sk)->dst, ctrl_sock,
+	ret = hidp_session_new(&session, &chan->dst, ctrl_sock,
 			       intr_sock, req, conn);
 	if (ret)
 		goto out_conn;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 02dba4e6df96..0c3446da1ec9 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -36,14 +36,15 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
-#include <net/bluetooth/smp.h>
-#include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/amp.h>
+
+#include "smp.h"
+#include "a2mp.h"
+#include "amp.h"
 
 bool disable_ertm;
 
-static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
-static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP, };
+static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN | L2CAP_FEAT_UCD;
+static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP | L2CAP_FC_CONNLESS, };
 
 static LIST_HEAD(chan_list);
 static DEFINE_RWLOCK(chan_list_lock);
@@ -58,6 +59,18 @@ static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err);
 static void l2cap_tx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
 		     struct sk_buff_head *skbs, u8 event);
 
+static inline __u8 bdaddr_type(struct hci_conn *hcon, __u8 type)
+{
+	if (hcon->type == LE_LINK) {
+		if (type == ADDR_LE_DEV_PUBLIC)
+			return BDADDR_LE_PUBLIC;
+		else
+			return BDADDR_LE_RANDOM;
+	}
+
+	return BDADDR_BREDR;
+}
+
 /* ---- L2CAP channels ---- */
 
 static struct l2cap_chan *__l2cap_get_chan_by_dcid(struct l2cap_conn *conn,
@@ -148,7 +161,7 @@ static struct l2cap_chan *__l2cap_global_chan_by_addr(__le16 psm, bdaddr_t *src)
 	struct l2cap_chan *c;
 
 	list_for_each_entry(c, &chan_list, global_l) {
-		if (c->sport == psm && !bacmp(&bt_sk(c->sk)->src, src))
+		if (c->sport == psm && !bacmp(&c->src, src))
 			return c;
 	}
 	return NULL;
@@ -620,10 +633,8 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
 void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 {
 	struct l2cap_conn *conn = chan->conn;
-	struct sock *sk = chan->sk;
 
-	BT_DBG("chan %p state %s sk %p", chan, state_to_string(chan->state),
-	       sk);
+	BT_DBG("chan %p state %s", chan, state_to_string(chan->state));
 
 	switch (chan->state) {
 	case BT_LISTEN:
@@ -634,6 +645,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 	case BT_CONFIG:
 		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
 		    conn->hcon->type == ACL_LINK) {
+			struct sock *sk = chan->sk;
 			__set_chan_timer(chan, sk->sk_sndtimeo);
 			l2cap_send_disconn_req(chan, reason);
 		} else
@@ -646,10 +658,11 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 			struct l2cap_conn_rsp rsp;
 			__u16 result;
 
-			if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))
+			if (test_bit(FLAG_DEFER_SETUP, &chan->flags))
 				result = L2CAP_CR_SEC_BLOCK;
 			else
 				result = L2CAP_CR_BAD_PSM;
+
 			l2cap_state_change(chan, BT_DISCONN);
 
 			rsp.scid   = cpu_to_le16(chan->dcid);
@@ -676,7 +689,8 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 
 static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
 {
-	if (chan->chan_type == L2CAP_CHAN_RAW) {
+	switch (chan->chan_type) {
+	case L2CAP_CHAN_RAW:
 		switch (chan->sec_level) {
 		case BT_SECURITY_HIGH:
 			return HCI_AT_DEDICATED_BONDING_MITM;
@@ -685,15 +699,29 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
 		default:
 			return HCI_AT_NO_BONDING;
 		}
-	} else if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) {
-		if (chan->sec_level == BT_SECURITY_LOW)
-			chan->sec_level = BT_SECURITY_SDP;
-
+		break;
+	case L2CAP_CHAN_CONN_LESS:
+		if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_3DSP)) {
+			if (chan->sec_level == BT_SECURITY_LOW)
+				chan->sec_level = BT_SECURITY_SDP;
+		}
 		if (chan->sec_level == BT_SECURITY_HIGH)
 			return HCI_AT_NO_BONDING_MITM;
 		else
 			return HCI_AT_NO_BONDING;
-	} else {
+		break;
+	case L2CAP_CHAN_CONN_ORIENTED:
+		if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) {
+			if (chan->sec_level == BT_SECURITY_LOW)
+				chan->sec_level = BT_SECURITY_SDP;
+
+			if (chan->sec_level == BT_SECURITY_HIGH)
+				return HCI_AT_NO_BONDING_MITM;
+			else
+				return HCI_AT_NO_BONDING;
+		}
+		/* fall through */
+	default:
 		switch (chan->sec_level) {
 		case BT_SECURITY_HIGH:
 			return HCI_AT_GENERAL_BONDING_MITM;
@@ -702,6 +730,7 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
 		default:
 			return HCI_AT_NO_BONDING;
 		}
+		break;
 	}
 }
 
@@ -1015,11 +1044,27 @@ static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan)
 static bool __amp_capable(struct l2cap_chan *chan)
 {
 	struct l2cap_conn *conn = chan->conn;
+	struct hci_dev *hdev;
+	bool amp_available = false;
+
+	if (!conn->hs_enabled)
+		return false;
 
-	if (conn->hs_enabled && hci_amp_capable() &&
-	    chan->chan_policy == BT_CHANNEL_POLICY_AMP_PREFERRED &&
-	    conn->fixed_chan_mask & L2CAP_FC_A2MP)
-		return true;
+	if (!(conn->fixed_chan_mask & L2CAP_FC_A2MP))
+		return false;
+
+	read_lock(&hci_dev_list_lock);
+	list_for_each_entry(hdev, &hci_dev_list, list) {
+		if (hdev->amp_type != AMP_TYPE_BREDR &&
+		    test_bit(HCI_UP, &hdev->flags)) {
+			amp_available = true;
+			break;
+		}
+	}
+	read_unlock(&hci_dev_list_lock);
+
+	if (chan->chan_policy == BT_CHANNEL_POLICY_AMP_PREFERRED)
+		return amp_available;
 
 	return false;
 }
@@ -1224,8 +1269,6 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 	mutex_lock(&conn->chan_lock);
 
 	list_for_each_entry_safe(chan, tmp, &conn->chan_l, list) {
-		struct sock *sk = chan->sk;
-
 		l2cap_chan_lock(chan);
 
 		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
@@ -1257,9 +1300,10 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 			rsp.dcid = cpu_to_le16(chan->scid);
 
 			if (l2cap_chan_check_security(chan)) {
+				struct sock *sk = chan->sk;
+
 				lock_sock(sk);
-				if (test_bit(BT_SK_DEFER_SETUP,
-					     &bt_sk(sk)->flags)) {
+				if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 					rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND);
 					rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
 					chan->ops->defer(chan);
@@ -1308,8 +1352,6 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid,
 	read_lock(&chan_list_lock);
 
 	list_for_each_entry(c, &chan_list, global_l) {
-		struct sock *sk = c->sk;
-
 		if (state && c->state != state)
 			continue;
 
@@ -1318,16 +1360,16 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid,
 			int src_any, dst_any;
 
 			/* Exact match. */
-			src_match = !bacmp(&bt_sk(sk)->src, src);
-			dst_match = !bacmp(&bt_sk(sk)->dst, dst);
+			src_match = !bacmp(&c->src, src);
+			dst_match = !bacmp(&c->dst, dst);
 			if (src_match && dst_match) {
 				read_unlock(&chan_list_lock);
 				return c;
 			}
 
 			/* Closest match */
-			src_any = !bacmp(&bt_sk(sk)->src, BDADDR_ANY);
-			dst_any = !bacmp(&bt_sk(sk)->dst, BDADDR_ANY);
+			src_any = !bacmp(&c->src, BDADDR_ANY);
+			dst_any = !bacmp(&c->dst, BDADDR_ANY);
 			if ((src_match && dst_any) || (src_any && dst_match) ||
 			    (src_any && dst_any))
 				c1 = c;
@@ -1348,7 +1390,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	/* Check if we have socket listening on cid */
 	pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_ATT,
-					  conn->src, conn->dst);
+					  &conn->hcon->src, &conn->hcon->dst);
 	if (!pchan)
 		return;
 
@@ -1366,8 +1408,10 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	chan->dcid = L2CAP_CID_ATT;
 
-	bacpy(&bt_sk(chan->sk)->src, conn->src);
-	bacpy(&bt_sk(chan->sk)->dst, conn->dst);
+	bacpy(&chan->src, &conn->hcon->src);
+	bacpy(&chan->dst, &conn->hcon->dst);
+	chan->src_type = bdaddr_type(conn->hcon, conn->hcon->src_type);
+	chan->dst_type = bdaddr_type(conn->hcon, conn->hcon->dst_type);
 
 	__l2cap_chan_add(conn, chan);
 
@@ -1632,9 +1676,6 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon)
 		break;
 	}
 
-	conn->src = &hcon->hdev->bdaddr;
-	conn->dst = &hcon->dst;
-
 	conn->feat_mask = 0;
 
 	if (hcon->type == ACL_LINK)
@@ -1691,8 +1732,6 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm,
 	read_lock(&chan_list_lock);
 
 	list_for_each_entry(c, &chan_list, global_l) {
-		struct sock *sk = c->sk;
-
 		if (state && c->state != state)
 			continue;
 
@@ -1701,16 +1740,16 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm,
 			int src_any, dst_any;
 
 			/* Exact match. */
-			src_match = !bacmp(&bt_sk(sk)->src, src);
-			dst_match = !bacmp(&bt_sk(sk)->dst, dst);
+			src_match = !bacmp(&c->src, src);
+			dst_match = !bacmp(&c->dst, dst);
 			if (src_match && dst_match) {
 				read_unlock(&chan_list_lock);
 				return c;
 			}
 
 			/* Closest match */
-			src_any = !bacmp(&bt_sk(sk)->src, BDADDR_ANY);
-			dst_any = !bacmp(&bt_sk(sk)->dst, BDADDR_ANY);
+			src_any = !bacmp(&c->src, BDADDR_ANY);
+			dst_any = !bacmp(&c->dst, BDADDR_ANY);
 			if ((src_match && dst_any) || (src_any && dst_match) ||
 			    (src_any && dst_any))
 				c1 = c;
@@ -1726,17 +1765,16 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 		       bdaddr_t *dst, u8 dst_type)
 {
 	struct sock *sk = chan->sk;
-	bdaddr_t *src = &bt_sk(sk)->src;
 	struct l2cap_conn *conn;
 	struct hci_conn *hcon;
 	struct hci_dev *hdev;
 	__u8 auth_type;
 	int err;
 
-	BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", src, dst,
+	BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", &chan->src, dst,
 	       dst_type, __le16_to_cpu(psm));
 
-	hdev = hci_get_route(dst, src);
+	hdev = hci_get_route(dst, &chan->src);
 	if (!hdev)
 		return -EHOSTUNREACH;
 
@@ -1793,9 +1831,8 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	}
 
 	/* Set destination address and psm */
-	lock_sock(sk);
-	bacpy(&bt_sk(sk)->dst, dst);
-	release_sock(sk);
+	bacpy(&chan->dst, dst);
+	chan->dst_type = dst_type;
 
 	chan->psm = psm;
 	chan->dcid = cid;
@@ -1828,7 +1865,8 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	}
 
 	/* Update source addr of the socket */
-	bacpy(src, conn->src);
+	bacpy(&chan->src, &hcon->src);
+	chan->src_type = bdaddr_type(hcon, hcon->src_type);
 
 	l2cap_chan_unlock(chan);
 	l2cap_chan_add(conn, chan);
@@ -2266,7 +2304,8 @@ static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan,
 	int err, count, hlen = L2CAP_HDR_SIZE + L2CAP_PSMLEN_SIZE;
 	struct l2cap_hdr *lh;
 
-	BT_DBG("chan %p len %zu priority %u", chan, len, priority);
+	BT_DBG("chan %p psm 0x%2.2x len %zu priority %u", chan,
+	       __le16_to_cpu(chan->psm), len, priority);
 
 	count = min_t(unsigned int, (conn->mtu - hlen), len);
 
@@ -2281,7 +2320,7 @@ static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan,
 	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
 	lh->cid = cpu_to_le16(chan->dcid);
 	lh->len = cpu_to_le16(len + L2CAP_PSMLEN_SIZE);
-	put_unaligned(chan->psm, skb_put(skb, L2CAP_PSMLEN_SIZE));
+	put_unaligned(chan->psm, (__le16 *) skb_put(skb, L2CAP_PSMLEN_SIZE));
 
 	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
 	if (unlikely(err < 0)) {
@@ -3046,8 +3085,8 @@ int l2cap_ertm_init(struct l2cap_chan *chan)
 
 	skb_queue_head_init(&chan->tx_q);
 
-	chan->local_amp_id = 0;
-	chan->move_id = 0;
+	chan->local_amp_id = AMP_ID_BREDR;
+	chan->move_id = AMP_ID_BREDR;
 	chan->move_state = L2CAP_MOVE_STABLE;
 	chan->move_role = L2CAP_MOVE_ROLE_NONE;
 
@@ -3100,7 +3139,7 @@ static inline bool __l2cap_efs_supported(struct l2cap_conn *conn)
 static void __l2cap_set_ertm_timeouts(struct l2cap_chan *chan,
 				      struct l2cap_conf_rfc *rfc)
 {
-	if (chan->local_amp_id && chan->hs_hcon) {
+	if (chan->local_amp_id != AMP_ID_BREDR && chan->hs_hcon) {
 		u64 ertm_to = chan->hs_hcon->hdev->amp_be_flush_to;
 
 		/* Class 1 devices have must have ERTM timeouts
@@ -3727,7 +3766,8 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	BT_DBG("psm 0x%2.2x scid 0x%4.4x", __le16_to_cpu(psm), scid);
 
 	/* Check if we have socket listening on psm */
-	pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, conn->src, conn->dst);
+	pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, &conn->hcon->src,
+					 &conn->hcon->dst);
 	if (!pchan) {
 		result = L2CAP_CR_BAD_PSM;
 		goto sendresp;
@@ -3765,8 +3805,10 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	 */
 	conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
 
-	bacpy(&bt_sk(sk)->src, conn->src);
-	bacpy(&bt_sk(sk)->dst, conn->dst);
+	bacpy(&chan->src, &conn->hcon->src);
+	bacpy(&chan->dst, &conn->hcon->dst);
+	chan->src_type = bdaddr_type(conn->hcon, conn->hcon->src_type);
+	chan->dst_type = bdaddr_type(conn->hcon, conn->hcon->dst_type);
 	chan->psm  = psm;
 	chan->dcid = scid;
 	chan->local_amp_id = amp_id;
@@ -3781,7 +3823,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 
 	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) {
 		if (l2cap_chan_check_security(chan)) {
-			if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) {
+			if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 				__l2cap_state_change(chan, BT_CONNECT2);
 				result = L2CAP_CR_PEND;
 				status = L2CAP_CS_AUTHOR_PEND;
@@ -3791,12 +3833,12 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 				 * The connection will succeed after the
 				 * physical link is up.
 				 */
-				if (amp_id) {
-					__l2cap_state_change(chan, BT_CONNECT2);
-					result = L2CAP_CR_PEND;
-				} else {
+				if (amp_id == AMP_ID_BREDR) {
 					__l2cap_state_change(chan, BT_CONFIG);
 					result = L2CAP_CR_SUCCESS;
+				} else {
+					__l2cap_state_change(chan, BT_CONNECT2);
+					result = L2CAP_CR_PEND;
 				}
 				status = L2CAP_CS_NO_INFO;
 			}
@@ -4423,7 +4465,7 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn,
 	BT_DBG("psm 0x%2.2x, scid 0x%4.4x, amp_id %d", psm, scid, req->amp_id);
 
 	/* For controller id 0 make BR/EDR connection */
-	if (req->amp_id == HCI_BREDR_ID) {
+	if (req->amp_id == AMP_ID_BREDR) {
 		l2cap_connect(conn, cmd, data, L2CAP_CREATE_CHAN_RSP,
 			      req->amp_id);
 		return 0;
@@ -4445,7 +4487,8 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn,
 		struct amp_mgr *mgr = conn->hcon->amp_mgr;
 		struct hci_conn *hs_hcon;
 
-		hs_hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, conn->dst);
+		hs_hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK,
+						  &conn->hcon->dst);
 		if (!hs_hcon) {
 			hci_dev_put(hdev);
 			return -EBADSLT;
@@ -4658,7 +4701,7 @@ void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
 
 	if (chan->state != BT_CONNECTED) {
 		/* Ignore logical link if channel is on BR/EDR */
-		if (chan->local_amp_id)
+		if (chan->local_amp_id != AMP_ID_BREDR)
 			l2cap_logical_finish_create(chan, hchan);
 	} else {
 		l2cap_logical_finish_move(chan, hchan);
@@ -4669,7 +4712,7 @@ void l2cap_move_start(struct l2cap_chan *chan)
 {
 	BT_DBG("chan %p", chan);
 
-	if (chan->local_amp_id == HCI_BREDR_ID) {
+	if (chan->local_amp_id == AMP_ID_BREDR) {
 		if (chan->chan_policy != BT_CHANNEL_POLICY_AMP_PREFERRED)
 			return;
 		chan->move_role = L2CAP_MOVE_ROLE_INITIATOR;
@@ -4868,7 +4911,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 		goto send_move_response;
 	}
 
-	if (req->dest_amp_id) {
+	if (req->dest_amp_id != AMP_ID_BREDR) {
 		struct hci_dev *hdev;
 		hdev = hci_dev_get(req->dest_amp_id);
 		if (!hdev || hdev->dev_type != HCI_AMP ||
@@ -4888,7 +4931,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 	 */
 	if ((__chan_is_moving(chan) ||
 	     chan->move_role != L2CAP_MOVE_ROLE_NONE) &&
-	    bacmp(conn->src, conn->dst) > 0) {
+	    bacmp(&conn->hcon->src, &conn->hcon->dst) > 0) {
 		result = L2CAP_MR_COLLISION;
 		goto send_move_response;
 	}
@@ -4898,7 +4941,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 	chan->move_id = req->dest_amp_id;
 	icid = chan->dcid;
 
-	if (!req->dest_amp_id) {
+	if (req->dest_amp_id == AMP_ID_BREDR) {
 		/* Moving to BR/EDR */
 		if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
 			chan->move_state = L2CAP_MOVE_WAIT_LOCAL_BUSY;
@@ -5090,7 +5133,7 @@ static int l2cap_move_channel_confirm(struct l2cap_conn *conn,
 	if (chan->move_state == L2CAP_MOVE_WAIT_CONFIRM) {
 		if (result == L2CAP_MC_CONFIRMED) {
 			chan->local_amp_id = chan->move_id;
-			if (!chan->local_amp_id)
+			if (chan->local_amp_id == AMP_ID_BREDR)
 				__release_logical_link(chan);
 		} else {
 			chan->move_id = chan->local_amp_id;
@@ -5130,7 +5173,7 @@ static inline int l2cap_move_channel_confirm_rsp(struct l2cap_conn *conn,
 	if (chan->move_state == L2CAP_MOVE_WAIT_CONFIRM_RSP) {
 		chan->local_amp_id = chan->move_id;
 
-		if (!chan->local_amp_id && chan->hs_hchan)
+		if (chan->local_amp_id == AMP_ID_BREDR && chan->hs_hchan)
 			__release_logical_link(chan);
 
 		l2cap_move_done(chan);
@@ -6403,7 +6446,8 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
 	if (hcon->type != ACL_LINK)
 		goto drop;
 
-	chan = l2cap_global_chan_by_psm(0, psm, conn->src, conn->dst);
+	chan = l2cap_global_chan_by_psm(0, psm, &conn->hcon->src,
+					&conn->hcon->dst);
 	if (!chan)
 		goto drop;
 
@@ -6415,6 +6459,10 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
 	if (chan->imtu < skb->len)
 		goto drop;
 
+	/* Store remote BD_ADDR and PSM for msg_name */
+	bacpy(&bt_cb(skb)->bdaddr, &conn->hcon->dst);
+	bt_cb(skb)->psm = psm;
+
 	if (!chan->ops->recv(chan, skb))
 		return;
 
@@ -6432,7 +6480,7 @@ static void l2cap_att_channel(struct l2cap_conn *conn,
 		goto drop;
 
 	chan = l2cap_global_chan_by_scid(BT_CONNECTED, L2CAP_CID_ATT,
-					 conn->src, conn->dst);
+					 &conn->hcon->src, &conn->hcon->dst);
 	if (!chan)
 		goto drop;
 
@@ -6507,17 +6555,15 @@ int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
 	/* Find listening sockets and check their link_mode */
 	read_lock(&chan_list_lock);
 	list_for_each_entry(c, &chan_list, global_l) {
-		struct sock *sk = c->sk;
-
 		if (c->state != BT_LISTEN)
 			continue;
 
-		if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr)) {
+		if (!bacmp(&c->src, &hdev->bdaddr)) {
 			lm1 |= HCI_LM_ACCEPT;
 			if (test_bit(FLAG_ROLE_SWITCH, &c->flags))
 				lm1 |= HCI_LM_MASTER;
 			exact++;
-		} else if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+		} else if (!bacmp(&c->src, BDADDR_ANY)) {
 			lm2 |= HCI_LM_ACCEPT;
 			if (test_bit(FLAG_ROLE_SWITCH, &c->flags))
 				lm2 |= HCI_LM_MASTER;
@@ -6623,11 +6669,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 
 		if (!status && (chan->state == BT_CONNECTED ||
 				chan->state == BT_CONFIG)) {
-			struct sock *sk = chan->sk;
-
-			clear_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags);
-			sk->sk_state_change(sk);
-
+			chan->ops->resume(chan);
 			l2cap_check_encryption(chan, encrypt);
 			l2cap_chan_unlock(chan);
 			continue;
@@ -6647,8 +6689,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 			lock_sock(sk);
 
 			if (!status) {
-				if (test_bit(BT_SK_DEFER_SETUP,
-					     &bt_sk(sk)->flags)) {
+				if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 					res = L2CAP_CR_PEND;
 					stat = L2CAP_CS_AUTHOR_PEND;
 					chan->ops->defer(chan);
@@ -6782,9 +6823,13 @@ int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 		conn->rx_len -= skb->len;
 
 		if (!conn->rx_len) {
-			/* Complete frame received */
-			l2cap_recv_frame(conn, conn->rx_skb);
+			/* Complete frame received. l2cap_recv_frame
+			 * takes ownership of the skb so set the global
+			 * rx_skb pointer to NULL first.
+			 */
+			struct sk_buff *rx_skb = conn->rx_skb;
 			conn->rx_skb = NULL;
+			l2cap_recv_frame(conn, rx_skb);
 		}
 		break;
 	}
@@ -6801,10 +6846,8 @@ static int l2cap_debugfs_show(struct seq_file *f, void *p)
 	read_lock(&chan_list_lock);
 
 	list_for_each_entry(c, &chan_list, global_l) {
-		struct sock *sk = c->sk;
-
 		seq_printf(f, "%pMR %pMR %d %d 0x%4.4x 0x%4.4x %d %d %d %d\n",
-			   &bt_sk(sk)->src, &bt_sk(sk)->dst,
+			   &c->src, &c->dst,
 			   c->state, __le16_to_cpu(c->psm),
 			   c->scid, c->dcid, c->imtu, c->omtu,
 			   c->sec_level, c->mode);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 9119898ef040..5ffd75e20bde 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -32,7 +32,8 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
-#include <net/bluetooth/smp.h>
+
+#include "smp.h"
 
 static struct bt_sock_list l2cap_sk_list = {
 	.lock = __RW_LOCK_UNLOCKED(l2cap_sk_list.lock)
@@ -68,6 +69,9 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 	if (la.l2_cid && la.l2_psm)
 		return -EINVAL;
 
+	if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
+		return -EINVAL;
+
 	lock_sock(sk);
 
 	if (sk->sk_state != BT_OPEN) {
@@ -99,11 +103,20 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 	if (err < 0)
 		goto done;
 
-	if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
-	    __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
-		chan->sec_level = BT_SECURITY_SDP;
+	switch (chan->chan_type) {
+	case L2CAP_CHAN_CONN_LESS:
+		if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_3DSP)
+			chan->sec_level = BT_SECURITY_SDP;
+		break;
+	case L2CAP_CHAN_CONN_ORIENTED:
+		if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
+		    __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
+			chan->sec_level = BT_SECURITY_SDP;
+		break;
+	}
 
-	bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);
+	bacpy(&chan->src, &la.l2_bdaddr);
+	chan->src_type = la.l2_bdaddr_type;
 
 	chan->state = BT_BOUND;
 	sk->sk_state = BT_BOUND;
@@ -134,6 +147,15 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 	if (la.l2_cid && la.l2_psm)
 		return -EINVAL;
 
+	if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
+		return -EINVAL;
+
+	if (chan->src_type == BDADDR_BREDR && la.l2_bdaddr_type != BDADDR_BREDR)
+		return -EINVAL;
+
+	if (chan->src_type != BDADDR_BREDR && la.l2_bdaddr_type == BDADDR_BREDR)
+		return -EINVAL;
+
 	err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
 				 &la.l2_bdaddr, la.l2_bdaddr_type);
 	if (err)
@@ -265,12 +287,14 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr,
 
 	if (peer) {
 		la->l2_psm = chan->psm;
-		bacpy(&la->l2_bdaddr, &bt_sk(sk)->dst);
+		bacpy(&la->l2_bdaddr, &chan->dst);
 		la->l2_cid = cpu_to_le16(chan->dcid);
+		la->l2_bdaddr_type = chan->dst_type;
 	} else {
 		la->l2_psm = chan->sport;
-		bacpy(&la->l2_bdaddr, &bt_sk(sk)->src);
+		bacpy(&la->l2_bdaddr, &chan->src);
 		la->l2_cid = cpu_to_le16(chan->scid);
+		la->l2_bdaddr_type = chan->src_type;
 	}
 
 	return 0;
@@ -660,10 +684,13 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (opt)
+		if (opt) {
 			set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
-		else
+			set_bit(FLAG_DEFER_SETUP, &chan->flags);
+		} else {
 			clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
+			clear_bit(FLAG_DEFER_SETUP, &chan->flags);
+		}
 		break;
 
 	case BT_FLUSHABLE:
@@ -678,7 +705,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 		}
 
 		if (opt == BT_FLUSHABLE_OFF) {
-			struct l2cap_conn *conn = chan->conn;
+			conn = chan->conn;
 			/* proceed further only when we have l2cap_conn and
 			   No Flush support in the LM */
 			if (!conn || !lmp_no_flush_capable(conn->hcon->hdev)) {
@@ -964,13 +991,12 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
 
 static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 {
-	int err;
 	struct sock *sk = chan->data;
-	struct l2cap_pinfo *pi = l2cap_pi(sk);
+	int err;
 
 	lock_sock(sk);
 
-	if (pi->rx_busy_skb) {
+	if (l2cap_pi(sk)->rx_busy_skb) {
 		err = -ENOMEM;
 		goto done;
 	}
@@ -986,9 +1012,9 @@ static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 	 * acked and reassembled until there is buffer space
 	 * available.
 	 */
-	if (err < 0 && pi->chan->mode == L2CAP_MODE_ERTM) {
-		pi->rx_busy_skb = skb;
-		l2cap_chan_busy(pi->chan, 1);
+	if (err < 0 && chan->mode == L2CAP_MODE_ERTM) {
+		l2cap_pi(sk)->rx_busy_skb = skb;
+		l2cap_chan_busy(chan, 1);
 		err = 0;
 	}
 
@@ -1098,6 +1124,14 @@ static void l2cap_sock_defer_cb(struct l2cap_chan *chan)
 		parent->sk_data_ready(parent, 0);
 }
 
+static void l2cap_sock_resume_cb(struct l2cap_chan *chan)
+{
+	struct sock *sk = chan->data;
+
+	clear_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags);
+	sk->sk_state_change(sk);
+}
+
 static struct l2cap_ops l2cap_chan_ops = {
 	.name		= "L2CAP Socket Interface",
 	.new_connection	= l2cap_sock_new_connection_cb,
@@ -1107,6 +1141,7 @@ static struct l2cap_ops l2cap_chan_ops = {
 	.state_change	= l2cap_sock_state_change_cb,
 	.ready		= l2cap_sock_ready_cb,
 	.defer		= l2cap_sock_defer_cb,
+	.resume		= l2cap_sock_resume_cb,
 	.alloc_skb	= l2cap_sock_alloc_skb_cb,
 };
 
@@ -1116,6 +1151,7 @@ static void l2cap_sock_destruct(struct sock *sk)
 
 	if (l2cap_pi(sk)->chan)
 		l2cap_chan_put(l2cap_pi(sk)->chan);
+
 	if (l2cap_pi(sk)->rx_busy_skb) {
 		kfree_skb(l2cap_pi(sk)->rx_busy_skb);
 		l2cap_pi(sk)->rx_busy_skb = NULL;
@@ -1125,10 +1161,22 @@ static void l2cap_sock_destruct(struct sock *sk)
 	skb_queue_purge(&sk->sk_write_queue);
 }
 
+static void l2cap_skb_msg_name(struct sk_buff *skb, void *msg_name,
+			       int *msg_namelen)
+{
+	struct sockaddr_l2 *la = (struct sockaddr_l2 *) msg_name;
+
+	memset(la, 0, sizeof(struct sockaddr_l2));
+	la->l2_family = AF_BLUETOOTH;
+	la->l2_psm = bt_cb(skb)->psm;
+	bacpy(&la->l2_bdaddr, &bt_cb(skb)->bdaddr);
+
+	*msg_namelen = sizeof(struct sockaddr_l2);
+}
+
 static void l2cap_sock_init(struct sock *sk, struct sock *parent)
 {
-	struct l2cap_pinfo *pi = l2cap_pi(sk);
-	struct l2cap_chan *chan = pi->chan;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
 
 	BT_DBG("sk %p", sk);
 
@@ -1152,13 +1200,13 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
 
 		security_sk_clone(parent, sk);
 	} else {
-
 		switch (sk->sk_type) {
 		case SOCK_RAW:
 			chan->chan_type = L2CAP_CHAN_RAW;
 			break;
 		case SOCK_DGRAM:
 			chan->chan_type = L2CAP_CHAN_CONN_LESS;
+			bt_sk(sk)->skb_msg_name = l2cap_skb_msg_name;
 			break;
 		case SOCK_SEQPACKET:
 		case SOCK_STREAM:
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 16125ff918f1..861e389f4b4c 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -30,7 +30,8 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/mgmt.h>
-#include <net/bluetooth/smp.h>
+
+#include "smp.h"
 
 #define MGMT_VERSION	1
 #define MGMT_REVISION	4
@@ -77,6 +78,7 @@ static const u16 mgmt_commands[] = {
 	MGMT_OP_SET_ADVERTISING,
 	MGMT_OP_SET_BREDR,
 	MGMT_OP_SET_STATIC_ADDRESS,
+	MGMT_OP_SET_SCAN_PARAMS,
 };
 
 static const u16 mgmt_events[] = {
@@ -182,11 +184,6 @@ static u8 mgmt_status_table[] = {
 	MGMT_STATUS_CONNECT_FAILED,	/* MAC Connection Failed */
 };
 
-bool mgmt_valid_hdev(struct hci_dev *hdev)
-{
-	return hdev->dev_type == HCI_BREDR;
-}
-
 static u8 mgmt_status(u8 hci_status)
 {
 	if (hci_status < ARRAY_SIZE(mgmt_status_table))
@@ -322,10 +319,8 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	count = 0;
 	list_for_each_entry(d, &hci_dev_list, list) {
-		if (!mgmt_valid_hdev(d))
-			continue;
-
-		count++;
+		if (d->dev_type == HCI_BREDR)
+			count++;
 	}
 
 	rp_len = sizeof(*rp) + (2 * count);
@@ -343,11 +338,10 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
 		if (test_bit(HCI_USER_CHANNEL, &d->dev_flags))
 			continue;
 
-		if (!mgmt_valid_hdev(d))
-			continue;
-
-		rp->index[count++] = cpu_to_le16(d->id);
-		BT_DBG("Added hci%u", d->id);
+		if (d->dev_type == HCI_BREDR) {
+			rp->index[count++] = cpu_to_le16(d->id);
+			BT_DBG("Added hci%u", d->id);
+		}
 	}
 
 	rp->num_controllers = cpu_to_le16(count);
@@ -370,9 +364,6 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 	settings |= MGMT_SETTING_POWERED;
 	settings |= MGMT_SETTING_PAIRABLE;
 
-	if (lmp_ssp_capable(hdev))
-		settings |= MGMT_SETTING_SSP;
-
 	if (lmp_bredr_capable(hdev)) {
 		settings |= MGMT_SETTING_CONNECTABLE;
 		if (hdev->hci_ver >= BLUETOOTH_VER_1_2)
@@ -380,7 +371,11 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 		settings |= MGMT_SETTING_DISCOVERABLE;
 		settings |= MGMT_SETTING_BREDR;
 		settings |= MGMT_SETTING_LINK_SECURITY;
-		settings |= MGMT_SETTING_HS;
+
+		if (lmp_ssp_capable(hdev)) {
+			settings |= MGMT_SETTING_SSP;
+			settings |= MGMT_SETTING_HS;
+		}
 	}
 
 	if (lmp_le_capable(hdev)) {
@@ -425,7 +420,7 @@ static u32 get_current_settings(struct hci_dev *hdev)
 	if (test_bit(HCI_HS_ENABLED, &hdev->dev_flags))
 		settings |= MGMT_SETTING_HS;
 
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
 		settings |= MGMT_SETTING_ADVERTISING;
 
 	return settings;
@@ -940,11 +935,52 @@ static u8 mgmt_le_support(struct hci_dev *hdev)
 		return MGMT_STATUS_SUCCESS;
 }
 
+static void set_discoverable_complete(struct hci_dev *hdev, u8 status)
+{
+	struct pending_cmd *cmd;
+	struct mgmt_mode *cp;
+	bool changed;
+
+	BT_DBG("status 0x%02x", status);
+
+	hci_dev_lock(hdev);
+
+	cmd = mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
+	if (!cmd)
+		goto unlock;
+
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+		cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
+		goto remove_cmd;
+	}
+
+	cp = cmd->param;
+	if (cp->val)
+		changed = !test_and_set_bit(HCI_DISCOVERABLE,
+					    &hdev->dev_flags);
+	else
+		changed = test_and_clear_bit(HCI_DISCOVERABLE,
+					     &hdev->dev_flags);
+
+	send_settings_rsp(cmd->sk, MGMT_OP_SET_DISCOVERABLE, hdev);
+
+	if (changed)
+		new_settings(hdev, cmd->sk);
+
+remove_cmd:
+	mgmt_pending_remove(cmd);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 			    u16 len)
 {
 	struct mgmt_cp_set_discoverable *cp = data;
 	struct pending_cmd *cmd;
+	struct hci_request req;
 	u16 timeout;
 	u8 scan, status;
 	int err;
@@ -1026,6 +1062,8 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
+	hci_req_init(&req, hdev);
+
 	scan = SCAN_PAGE;
 
 	if (cp->val)
@@ -1033,7 +1071,9 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	else
 		cancel_delayed_work(&hdev->discov_off);
 
-	err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+
+	err = hci_req_run(&req, set_discoverable_complete);
 	if (err < 0)
 		mgmt_pending_remove(cmd);
 
@@ -1077,9 +1117,58 @@ static void write_fast_connectable(struct hci_request *req, bool enable)
 		hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
 }
 
+static u8 get_adv_type(struct hci_dev *hdev)
+{
+	struct pending_cmd *cmd;
+	bool connectable;
+
+	/* If there's a pending mgmt command the flag will not yet have
+	 * it's final value, so check for this first.
+	 */
+	cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
+	if (cmd) {
+		struct mgmt_mode *cp = cmd->param;
+		connectable = !!cp->val;
+	} else {
+		connectable = test_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+	}
+
+	return connectable ? LE_ADV_IND : LE_ADV_NONCONN_IND;
+}
+
+static void enable_advertising(struct hci_request *req)
+{
+	struct hci_dev *hdev = req->hdev;
+	struct hci_cp_le_set_adv_param cp;
+	u8 enable = 0x01;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.min_interval = __constant_cpu_to_le16(0x0800);
+	cp.max_interval = __constant_cpu_to_le16(0x0800);
+	cp.type = get_adv_type(hdev);
+	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
+	else
+		cp.own_address_type = ADDR_LE_DEV_RANDOM;
+	cp.channel_map = 0x07;
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
+}
+
+static void disable_advertising(struct hci_request *req)
+{
+	u8 enable = 0x00;
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
+}
+
 static void set_connectable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
+	struct mgmt_mode *cp;
+	bool changed;
 
 	BT_DBG("status 0x%02x", status);
 
@@ -1089,8 +1178,24 @@ static void set_connectable_complete(struct hci_dev *hdev, u8 status)
 	if (!cmd)
 		goto unlock;
 
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+		cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
+		goto remove_cmd;
+	}
+
+	cp = cmd->param;
+	if (cp->val)
+		changed = !test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+	else
+		changed = test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+
 	send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev);
 
+	if (changed)
+		new_settings(hdev, cmd->sk);
+
+remove_cmd:
 	mgmt_pending_remove(cmd);
 
 unlock:
@@ -1103,15 +1208,15 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
 	struct hci_request req;
-	u8 scan, status;
+	u8 scan;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
-	status = mgmt_bredr_support(hdev);
-	if (status)
+	if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags) &&
+	    !test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
-				  status);
+				  MGMT_STATUS_REJECTED);
 
 	if (cp->val != 0x00 && cp->val != 0x01)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
@@ -1149,30 +1254,29 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	if (!!cp->val == test_bit(HCI_PSCAN, &hdev->flags)) {
-		err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
-		goto failed;
-	}
-
 	cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
 	}
 
-	if (cp->val) {
-		scan = SCAN_PAGE;
-	} else {
-		scan = 0;
+	hci_req_init(&req, hdev);
 
-		if (test_bit(HCI_ISCAN, &hdev->flags) &&
-		    hdev->discov_timeout > 0)
-			cancel_delayed_work(&hdev->discov_off);
-	}
+	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags) &&
+	    cp->val != test_bit(HCI_PSCAN, &hdev->flags)) {
 
-	hci_req_init(&req, hdev);
+		if (cp->val) {
+			scan = SCAN_PAGE;
+		} else {
+			scan = 0;
 
-	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+			if (test_bit(HCI_ISCAN, &hdev->flags) &&
+					hdev->discov_timeout > 0)
+				cancel_delayed_work(&hdev->discov_off);
+		}
+
+		hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+	}
 
 	/* If we're going from non-connectable to connectable or
 	 * vice-versa when fast connectable is enabled ensure that fast
@@ -1183,9 +1287,20 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	if (cp->val || test_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags))
 		write_fast_connectable(&req, false);
 
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) &&
+	    hci_conn_num(hdev, LE_LINK) == 0) {
+		disable_advertising(&req);
+		enable_advertising(&req);
+	}
+
 	err = hci_req_run(&req, set_connectable_complete);
-	if (err < 0)
+	if (err < 0) {
 		mgmt_pending_remove(cmd);
+		if (err == -ENODATA)
+			err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE,
+						hdev);
+		goto failed;
+	}
 
 failed:
 	hci_dev_unlock(hdev);
@@ -1196,6 +1311,7 @@ static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data,
 			u16 len)
 {
 	struct mgmt_mode *cp = data;
+	bool changed;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
@@ -1207,17 +1323,18 @@ static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data,
 	hci_dev_lock(hdev);
 
 	if (cp->val)
-		set_bit(HCI_PAIRABLE, &hdev->dev_flags);
+		changed = !test_and_set_bit(HCI_PAIRABLE, &hdev->dev_flags);
 	else
-		clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
+		changed = test_and_clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
 
 	err = send_settings_rsp(sk, MGMT_OP_SET_PAIRABLE, hdev);
 	if (err < 0)
-		goto failed;
+		goto unlock;
 
-	err = new_settings(hdev, sk);
+	if (changed)
+		err = new_settings(hdev, sk);
 
-failed:
+unlock:
 	hci_dev_unlock(hdev);
 	return err;
 }
@@ -1296,7 +1413,7 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 {
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
-	u8 val, status;
+	u8 status;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
@@ -1315,14 +1432,20 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	hci_dev_lock(hdev);
 
-	val = !!cp->val;
-
 	if (!hdev_is_powered(hdev)) {
-		bool changed = false;
+		bool changed;
 
-		if (val != test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
-			change_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
-			changed = true;
+		if (cp->val) {
+			changed = !test_and_set_bit(HCI_SSP_ENABLED,
+						    &hdev->dev_flags);
+		} else {
+			changed = test_and_clear_bit(HCI_SSP_ENABLED,
+						     &hdev->dev_flags);
+			if (!changed)
+				changed = test_and_clear_bit(HCI_HS_ENABLED,
+							     &hdev->dev_flags);
+			else
+				clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
 		}
 
 		err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
@@ -1335,13 +1458,14 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		goto failed;
 	}
 
-	if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev)) {
+	if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev) ||
+	    mgmt_pending_find(MGMT_OP_SET_HS, hdev)) {
 		err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
 				 MGMT_STATUS_BUSY);
 		goto failed;
 	}
 
-	if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) == val) {
+	if (!!cp->val == test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
 		err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
 		goto failed;
 	}
@@ -1352,7 +1476,7 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		goto failed;
 	}
 
-	err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(val), &val);
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &cp->val);
 	if (err < 0) {
 		mgmt_pending_remove(cmd);
 		goto failed;
@@ -1376,6 +1500,14 @@ static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	if (status)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS, status);
 
+	if (!lmp_ssp_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
+	if (!test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
+				  MGMT_STATUS_REJECTED);
+
 	if (cp->val != 0x00 && cp->val != 0x01)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
 				  MGMT_STATUS_INVALID_PARAMS);
@@ -1463,8 +1595,8 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 			changed = true;
 		}
 
-		if (!val && test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
-			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+		if (!val && test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
+			clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
 			changed = true;
 		}
 
@@ -1500,8 +1632,8 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	hci_req_init(&req, hdev);
 
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags) && !val)
-		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(val), &val);
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) && !val)
+		disable_advertising(&req);
 
 	hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
 		    &hci_cp);
@@ -2888,7 +3020,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 			goto failed;
 		}
 
-		if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
+		if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
 			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
 					 MGMT_STATUS_REJECTED);
 			mgmt_pending_remove(cmd);
@@ -2906,6 +3038,10 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 		param_cp.type = LE_SCAN_ACTIVE;
 		param_cp.interval = cpu_to_le16(DISCOV_LE_SCAN_INT);
 		param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN);
+		if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+			param_cp.own_address_type = ADDR_LE_DEV_PUBLIC;
+		else
+			param_cp.own_address_type = ADDR_LE_DEV_RANDOM;
 		hci_req_add(&req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
 			    &param_cp);
 
@@ -3214,7 +3350,8 @@ static void set_advertising_complete(struct hci_dev *hdev, u8 status)
 		sock_put(match.sk);
 }
 
-static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
+static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
+			   u16 len)
 {
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
@@ -3236,13 +3373,19 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, u1
 	hci_dev_lock(hdev);
 
 	val = !!cp->val;
-	enabled = test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+	enabled = test_bit(HCI_ADVERTISING, &hdev->dev_flags);
 
-	if (!hdev_is_powered(hdev) || val == enabled) {
+	/* The following conditions are ones which mean that we should
+	 * not do any HCI communication but directly send a mgmt
+	 * response to user space (after toggling the flag if
+	 * necessary).
+	 */
+	if (!hdev_is_powered(hdev) || val == enabled ||
+	    hci_conn_num(hdev, LE_LINK) > 0) {
 		bool changed = false;
 
-		if (val != test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
-			change_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+		if (val != test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
+			change_bit(HCI_ADVERTISING, &hdev->dev_flags);
 			changed = true;
 		}
 
@@ -3271,7 +3414,10 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, u1
 
 	hci_req_init(&req, hdev);
 
-	hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(val), &val);
+	if (val)
+		enable_advertising(&req);
+	else
+		disable_advertising(&req);
 
 	err = hci_req_run(&req, set_advertising_complete);
 	if (err < 0)
@@ -3322,6 +3468,47 @@ static int set_static_address(struct sock *sk, struct hci_dev *hdev,
 	return err;
 }
 
+static int set_scan_params(struct sock *sk, struct hci_dev *hdev,
+			   void *data, u16 len)
+{
+	struct mgmt_cp_set_scan_params *cp = data;
+	__u16 interval, window;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!lmp_le_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
+	interval = __le16_to_cpu(cp->interval);
+
+	if (interval < 0x0004 || interval > 0x4000)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
+				  MGMT_STATUS_INVALID_PARAMS);
+
+	window = __le16_to_cpu(cp->window);
+
+	if (window < 0x0004 || window > 0x4000)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
+				  MGMT_STATUS_INVALID_PARAMS);
+
+	if (window > interval)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
+				  MGMT_STATUS_INVALID_PARAMS);
+
+	hci_dev_lock(hdev);
+
+	hdev->le_scan_interval = interval;
+	hdev->le_scan_window = window;
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, 0, NULL, 0);
+
+	hci_dev_unlock(hdev);
+
+	return err;
+}
+
 static void fast_connectable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
@@ -3420,6 +3607,26 @@ unlock:
 	return err;
 }
 
+static void set_bredr_scan(struct hci_request *req)
+{
+	struct hci_dev *hdev = req->hdev;
+	u8 scan = 0;
+
+	/* Ensure that fast connectable is disabled. This function will
+	 * not do anything if the page scan parameters are already what
+	 * they should be.
+	 */
+	write_fast_connectable(req, false);
+
+	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+		scan |= SCAN_PAGE;
+	if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
+		scan |= SCAN_INQUIRY;
+
+	if (scan)
+		hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+}
+
 static void set_bredr_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
@@ -3482,7 +3689,6 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	if (!hdev_is_powered(hdev)) {
 		if (!cp->val) {
-			clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
 			clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
 			clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
 			clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
@@ -3525,7 +3731,12 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
 
 	hci_req_init(&req, hdev);
+
+	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+		set_bredr_scan(&req);
+
 	hci_update_ad(&req);
+
 	err = hci_req_run(&req, set_bredr_complete);
 	if (err < 0)
 		mgmt_pending_remove(cmd);
@@ -3587,15 +3798,19 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
 
 	for (i = 0; i < key_count; i++) {
 		struct mgmt_ltk_info *key = &cp->keys[i];
-		u8 type;
+		u8 type, addr_type;
+
+		if (key->addr.type == BDADDR_LE_PUBLIC)
+			addr_type = ADDR_LE_DEV_PUBLIC;
+		else
+			addr_type = ADDR_LE_DEV_RANDOM;
 
 		if (key->master)
 			type = HCI_SMP_LTK;
 		else
 			type = HCI_SMP_LTK_SLAVE;
 
-		hci_add_ltk(hdev, &key->addr.bdaddr,
-			    bdaddr_to_le(key->addr.type),
+		hci_add_ltk(hdev, &key->addr.bdaddr, addr_type,
 			    type, 0, key->authenticated, key->val,
 			    key->enc_size, key->ediv, key->rand);
 	}
@@ -3658,6 +3873,7 @@ static const struct mgmt_handler {
 	{ set_advertising,        false, MGMT_SETTING_SIZE },
 	{ set_bredr,              false, MGMT_SETTING_SIZE },
 	{ set_static_address,     false, MGMT_SET_STATIC_ADDRESS_SIZE },
+	{ set_scan_params,        false, MGMT_SET_SCAN_PARAMS_SIZE },
 };
 
 
@@ -3703,7 +3919,8 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
 			goto done;
 		}
 
-		if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+		if (test_bit(HCI_SETUP, &hdev->dev_flags) ||
+		    test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
 			err = cmd_status(sk, index, opcode,
 					 MGMT_STATUS_INVALID_INDEX);
 			goto done;
@@ -3753,44 +3970,24 @@ done:
 	return err;
 }
 
-int mgmt_index_added(struct hci_dev *hdev)
+void mgmt_index_added(struct hci_dev *hdev)
 {
-	if (!mgmt_valid_hdev(hdev))
-		return -ENOTSUPP;
+	if (hdev->dev_type != HCI_BREDR)
+		return;
 
-	return mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
+	mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
 }
 
-int mgmt_index_removed(struct hci_dev *hdev)
+void mgmt_index_removed(struct hci_dev *hdev)
 {
 	u8 status = MGMT_STATUS_INVALID_INDEX;
 
-	if (!mgmt_valid_hdev(hdev))
-		return -ENOTSUPP;
+	if (hdev->dev_type != HCI_BREDR)
+		return;
 
 	mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
 
-	return mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
-}
-
-static void set_bredr_scan(struct hci_request *req)
-{
-	struct hci_dev *hdev = req->hdev;
-	u8 scan = 0;
-
-	/* Ensure that fast connectable is disabled. This function will
-	 * not do anything if the page scan parameters are already what
-	 * they should be.
-	 */
-	write_fast_connectable(req, false);
-
-	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
-		scan |= SCAN_PAGE;
-	if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
-		scan |= SCAN_INQUIRY;
-
-	if (scan)
-		hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+	mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
 }
 
 static void powered_complete(struct hci_dev *hdev, u8 status)
@@ -3849,12 +4046,9 @@ static int powered_update_hci(struct hci_dev *hdev)
 		if (bacmp(&hdev->static_addr, BDADDR_ANY))
 			hci_req_add(&req, HCI_OP_LE_SET_RANDOM_ADDR, 6,
 				    &hdev->static_addr);
-	}
-
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
-		u8 adv = 0x01;
 
-		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
+		if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
+			enable_advertising(&req);
 	}
 
 	link_sec = test_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
@@ -3908,33 +4102,37 @@ new_settings:
 	return err;
 }
 
-int mgmt_set_powered_failed(struct hci_dev *hdev, int err)
+void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
 {
 	struct pending_cmd *cmd;
 	u8 status;
 
 	cmd = mgmt_pending_find(MGMT_OP_SET_POWERED, hdev);
 	if (!cmd)
-		return -ENOENT;
+		return;
 
 	if (err == -ERFKILL)
 		status = MGMT_STATUS_RFKILLED;
 	else
 		status = MGMT_STATUS_FAILED;
 
-	err = cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
+	cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
 
 	mgmt_pending_remove(cmd);
-
-	return err;
 }
 
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 {
-	struct cmd_lookup match = { NULL, hdev };
 	bool changed = false;
 	int err = 0;
 
+	/* Nothing needed here if there's a pending command since that
+	 * commands request completion callback takes care of everything
+	 * necessary.
+	 */
+	if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev))
+		return 0;
+
 	if (discoverable) {
 		if (!test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
 			changed = true;
@@ -3943,24 +4141,24 @@ int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 			changed = true;
 	}
 
-	mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, settings_rsp,
-			     &match);
-
 	if (changed)
-		err = new_settings(hdev, match.sk);
-
-	if (match.sk)
-		sock_put(match.sk);
+		err = new_settings(hdev, NULL);
 
 	return err;
 }
 
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
 {
-	struct pending_cmd *cmd;
 	bool changed = false;
 	int err = 0;
 
+	/* Nothing needed here if there's a pending command since that
+	 * commands request completion callback takes care of everything
+	 * necessary.
+	 */
+	if (mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev))
+		return 0;
+
 	if (connectable) {
 		if (!test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags))
 			changed = true;
@@ -3969,10 +4167,8 @@ int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
 			changed = true;
 	}
 
-	cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
-
 	if (changed)
-		err = new_settings(hdev, cmd ? cmd->sk : NULL);
+		err = new_settings(hdev, NULL);
 
 	return err;
 }
@@ -4032,9 +4228,9 @@ int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent)
 			  NULL);
 }
 
-int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-			  u8 addr_type, u32 flags, u8 *name, u8 name_len,
-			  u8 *dev_class)
+void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+			   u8 addr_type, u32 flags, u8 *name, u8 name_len,
+			   u8 *dev_class)
 {
 	char buf[512];
 	struct mgmt_ev_device_connected *ev = (void *) buf;
@@ -4055,8 +4251,8 @@ int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 
 	ev->eir_len = cpu_to_le16(eir_len);
 
-	return mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
-			  sizeof(*ev) + eir_len, NULL);
+	mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
+		    sizeof(*ev) + eir_len, NULL);
 }
 
 static void disconnect_rsp(struct pending_cmd *cmd, void *data)
@@ -4094,12 +4290,11 @@ static void unpair_device_rsp(struct pending_cmd *cmd, void *data)
 	mgmt_pending_remove(cmd);
 }
 
-int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
-			     u8 link_type, u8 addr_type, u8 reason)
+void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			      u8 link_type, u8 addr_type, u8 reason)
 {
 	struct mgmt_ev_device_disconnected ev;
 	struct sock *sk = NULL;
-	int err;
 
 	mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk);
 
@@ -4107,45 +4302,39 @@ int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
 	ev.addr.type = link_to_bdaddr(link_type, addr_type);
 	ev.reason = reason;
 
-	err = mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev),
-			 sk);
+	mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), sk);
 
 	if (sk)
 		sock_put(sk);
 
 	mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
 			     hdev);
-
-	return err;
 }
 
-int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
-			   u8 link_type, u8 addr_type, u8 status)
+void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			    u8 link_type, u8 addr_type, u8 status)
 {
 	struct mgmt_rp_disconnect rp;
 	struct pending_cmd *cmd;
-	int err;
 
 	mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
 			     hdev);
 
 	cmd = mgmt_pending_find(MGMT_OP_DISCONNECT, hdev);
 	if (!cmd)
-		return -ENOENT;
+		return;
 
 	bacpy(&rp.addr.bdaddr, bdaddr);
 	rp.addr.type = link_to_bdaddr(link_type, addr_type);
 
-	err = cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT,
-			   mgmt_status(status), &rp, sizeof(rp));
+	cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT,
+		     mgmt_status(status), &rp, sizeof(rp));
 
 	mgmt_pending_remove(cmd);
-
-	return err;
 }
 
-int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-			u8 addr_type, u8 status)
+void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+			 u8 addr_type, u8 status)
 {
 	struct mgmt_ev_connect_failed ev;
 
@@ -4153,7 +4342,7 @@ int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	ev.addr.type = link_to_bdaddr(link_type, addr_type);
 	ev.status = mgmt_status(status);
 
-	return mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
+	mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
 }
 
 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
@@ -4382,8 +4571,10 @@ int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
 		u8 mgmt_err = mgmt_status(status);
 
 		if (enable && test_and_clear_bit(HCI_SSP_ENABLED,
-						 &hdev->dev_flags))
+						 &hdev->dev_flags)) {
+			clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
 			err = new_settings(hdev, NULL);
+		}
 
 		mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
 				     &mgmt_err);
@@ -4392,11 +4583,14 @@ int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
 	}
 
 	if (enable) {
-		if (!test_and_set_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
-			changed = true;
+		changed = !test_and_set_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
 	} else {
-		if (test_and_clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
-			changed = true;
+		changed = test_and_clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
+		if (!changed)
+			changed = test_and_clear_bit(HCI_HS_ENABLED,
+						     &hdev->dev_flags);
+		else
+			clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
 	}
 
 	mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
@@ -4507,20 +4701,20 @@ int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
 	return err;
 }
 
-int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-		      u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8
-		      ssp, u8 *eir, u16 eir_len)
+void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		       u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8
+		       ssp, u8 *eir, u16 eir_len)
 {
 	char buf[512];
 	struct mgmt_ev_device_found *ev = (void *) buf;
 	size_t ev_size;
 
 	if (!hci_discovery_active(hdev))
-		return -EPERM;
+		return;
 
 	/* Leave 5 bytes for a potential CoD field */
 	if (sizeof(*ev) + eir_len + 5 > sizeof(buf))
-		return -EINVAL;
+		return;
 
 	memset(buf, 0, sizeof(buf));
 
@@ -4542,11 +4736,11 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	ev->eir_len = cpu_to_le16(eir_len);
 	ev_size = sizeof(*ev) + eir_len;
 
-	return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
+	mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
 }
 
-int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-		     u8 addr_type, s8 rssi, u8 *name, u8 name_len)
+void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		      u8 addr_type, s8 rssi, u8 *name, u8 name_len)
 {
 	struct mgmt_ev_device_found *ev;
 	char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2];
@@ -4565,11 +4759,10 @@ int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 
 	ev->eir_len = cpu_to_le16(eir_len);
 
-	return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev,
-			  sizeof(*ev) + eir_len, NULL);
+	mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, sizeof(*ev) + eir_len, NULL);
 }
 
-int mgmt_discovering(struct hci_dev *hdev, u8 discovering)
+void mgmt_discovering(struct hci_dev *hdev, u8 discovering)
 {
 	struct mgmt_ev_discovering ev;
 	struct pending_cmd *cmd;
@@ -4593,7 +4786,7 @@ int mgmt_discovering(struct hci_dev *hdev, u8 discovering)
 	ev.type = hdev->discovery.type;
 	ev.discovering = discovering;
 
-	return mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
+	mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
 }
 
 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
@@ -4623,3 +4816,36 @@ int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 	return mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &ev, sizeof(ev),
 			  cmd ? cmd->sk : NULL);
 }
+
+static void adv_enable_complete(struct hci_dev *hdev, u8 status)
+{
+	BT_DBG("%s status %u", hdev->name, status);
+
+	/* Clear the advertising mgmt setting if we failed to re-enable it */
+	if (status) {
+		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
+		new_settings(hdev, NULL);
+	}
+}
+
+void mgmt_reenable_advertising(struct hci_dev *hdev)
+{
+	struct hci_request req;
+
+	if (hci_conn_num(hdev, LE_LINK) > 0)
+		return;
+
+	if (!test_bit(HCI_ADVERTISING, &hdev->dev_flags))
+		return;
+
+	hci_req_init(&req, hdev);
+	enable_advertising(&req);
+
+	/* If this fails we have no option but to let user space know
+	 * that we've disabled advertising.
+	 */
+	if (hci_req_run(&req, adv_enable_complete) < 0) {
+		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
+		new_settings(hdev, NULL);
+	}
+}
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index ca957d34b0c8..27e936a7ddd9 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -641,13 +641,13 @@ static struct rfcomm_session *rfcomm_session_get(bdaddr_t *src, bdaddr_t *dst)
 {
 	struct rfcomm_session *s;
 	struct list_head *p, *n;
-	struct bt_sock *sk;
+	struct l2cap_chan *chan;
 	list_for_each_safe(p, n, &session_list) {
 		s = list_entry(p, struct rfcomm_session, list);
-		sk = bt_sk(s->sock->sk);
+		chan = l2cap_pi(s->sock->sk)->chan;
 
-		if ((!bacmp(src, BDADDR_ANY) || !bacmp(&sk->src, src)) &&
-				!bacmp(&sk->dst, dst))
+		if ((!bacmp(src, BDADDR_ANY) || !bacmp(&chan->src, src)) &&
+		    !bacmp(&chan->dst, dst))
 			return s;
 	}
 	return NULL;
@@ -732,11 +732,11 @@ failed:
 
 void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src, bdaddr_t *dst)
 {
-	struct sock *sk = s->sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(s->sock->sk)->chan;
 	if (src)
-		bacpy(src, &bt_sk(sk)->src);
+		bacpy(src, &chan->src);
 	if (dst)
-		bacpy(dst, &bt_sk(sk)->dst);
+		bacpy(dst, &chan->dst);
 }
 
 /* ---- RFCOMM frame sending ---- */
@@ -2112,12 +2112,11 @@ static int rfcomm_dlc_debugfs_show(struct seq_file *f, void *x)
 	rfcomm_lock();
 
 	list_for_each_entry(s, &session_list, list) {
+		struct l2cap_chan *chan = l2cap_pi(s->sock->sk)->chan;
 		struct rfcomm_dlc *d;
 		list_for_each_entry(d, &s->dlcs, list) {
-			struct sock *sk = s->sock->sk;
-
 			seq_printf(f, "%pMR %pMR %ld %d %d %d %d\n",
-				   &bt_sk(sk)->src, &bt_sk(sk)->dst,
+				   &chan->src, &chan->dst,
 				   d->state, d->dlci, d->mtu,
 				   d->rx_credits, d->tx_credits);
 		}
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 072938dc527d..df17276eb32b 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -87,7 +87,8 @@ static void rfcomm_sk_state_change(struct rfcomm_dlc *d, int err)
 		parent->sk_data_ready(parent, 0);
 	} else {
 		if (d->state == BT_CONNECTED)
-			rfcomm_session_getaddr(d->session, &bt_sk(sk)->src, NULL);
+			rfcomm_session_getaddr(d->session,
+					       &rfcomm_pi(sk)->src, NULL);
 		sk->sk_state_change(sk);
 	}
 
@@ -110,7 +111,7 @@ static struct sock *__rfcomm_get_sock_by_addr(u8 channel, bdaddr_t *src)
 
 	sk_for_each(sk, &rfcomm_sk_list.head) {
 		if (rfcomm_pi(sk)->channel == channel &&
-				!bacmp(&bt_sk(sk)->src, src))
+				!bacmp(&rfcomm_pi(sk)->src, src))
 			break;
 	}
 
@@ -132,11 +133,11 @@ static struct sock *rfcomm_get_sock_by_channel(int state, u8 channel, bdaddr_t *
 
 		if (rfcomm_pi(sk)->channel == channel) {
 			/* Exact match. */
-			if (!bacmp(&bt_sk(sk)->src, src))
+			if (!bacmp(&rfcomm_pi(sk)->src, src))
 				break;
 
 			/* Closest match */
-			if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY))
+			if (!bacmp(&rfcomm_pi(sk)->src, BDADDR_ANY))
 				sk1 = sk;
 		}
 	}
@@ -355,7 +356,7 @@ static int rfcomm_sock_bind(struct socket *sock, struct sockaddr *addr, int addr
 		err = -EADDRINUSE;
 	} else {
 		/* Save source address */
-		bacpy(&bt_sk(sk)->src, &sa->rc_bdaddr);
+		bacpy(&rfcomm_pi(sk)->src, &sa->rc_bdaddr);
 		rfcomm_pi(sk)->channel = sa->rc_channel;
 		sk->sk_state = BT_BOUND;
 	}
@@ -393,13 +394,14 @@ static int rfcomm_sock_connect(struct socket *sock, struct sockaddr *addr, int a
 	}
 
 	sk->sk_state = BT_CONNECT;
-	bacpy(&bt_sk(sk)->dst, &sa->rc_bdaddr);
+	bacpy(&rfcomm_pi(sk)->dst, &sa->rc_bdaddr);
 	rfcomm_pi(sk)->channel = sa->rc_channel;
 
 	d->sec_level = rfcomm_pi(sk)->sec_level;
 	d->role_switch = rfcomm_pi(sk)->role_switch;
 
-	err = rfcomm_dlc_open(d, &bt_sk(sk)->src, &sa->rc_bdaddr, sa->rc_channel);
+	err = rfcomm_dlc_open(d, &rfcomm_pi(sk)->src, &sa->rc_bdaddr,
+			      sa->rc_channel);
 	if (!err)
 		err = bt_sock_wait_state(sk, BT_CONNECTED,
 				sock_sndtimeo(sk, flags & O_NONBLOCK));
@@ -429,7 +431,7 @@ static int rfcomm_sock_listen(struct socket *sock, int backlog)
 	}
 
 	if (!rfcomm_pi(sk)->channel) {
-		bdaddr_t *src = &bt_sk(sk)->src;
+		bdaddr_t *src = &rfcomm_pi(sk)->src;
 		u8 channel;
 
 		err = -EINVAL;
@@ -530,9 +532,9 @@ static int rfcomm_sock_getname(struct socket *sock, struct sockaddr *addr, int *
 	sa->rc_family  = AF_BLUETOOTH;
 	sa->rc_channel = rfcomm_pi(sk)->channel;
 	if (peer)
-		bacpy(&sa->rc_bdaddr, &bt_sk(sk)->dst);
+		bacpy(&sa->rc_bdaddr, &rfcomm_pi(sk)->dst);
 	else
-		bacpy(&sa->rc_bdaddr, &bt_sk(sk)->src);
+		bacpy(&sa->rc_bdaddr, &rfcomm_pi(sk)->src);
 
 	*len = sizeof(struct sockaddr_rc);
 	return 0;
@@ -951,8 +953,8 @@ int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel, struct rfcomm_dlc *
 	bt_sock_reclassify_lock(sk, BTPROTO_RFCOMM);
 
 	rfcomm_sock_init(sk, parent);
-	bacpy(&bt_sk(sk)->src, &src);
-	bacpy(&bt_sk(sk)->dst, &dst);
+	bacpy(&rfcomm_pi(sk)->src, &src);
+	bacpy(&rfcomm_pi(sk)->dst, &dst);
 	rfcomm_pi(sk)->channel = channel;
 
 	sk->sk_state = BT_CONFIG;
@@ -979,7 +981,7 @@ static int rfcomm_sock_debugfs_show(struct seq_file *f, void *p)
 
 	sk_for_each(sk, &rfcomm_sk_list.head) {
 		seq_printf(f, "%pMR %pMR %d %d\n",
-			   &bt_sk(sk)->src, &bt_sk(sk)->dst,
+			   &rfcomm_pi(sk)->src, &rfcomm_pi(sk)->dst,
 			   sk->sk_state, rfcomm_pi(sk)->channel);
 	}
 
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 96bd388d93a4..a92aebac56ca 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -92,9 +92,6 @@ static struct sco_conn *sco_conn_add(struct hci_conn *hcon)
 	hcon->sco_data = conn;
 	conn->hcon = hcon;
 
-	conn->src = &hdev->bdaddr;
-	conn->dst = &hcon->dst;
-
 	if (hdev->sco_mtu > 0)
 		conn->mtu = hdev->sco_mtu;
 	else
@@ -156,16 +153,14 @@ static int sco_chan_add(struct sco_conn *conn, struct sock *sk,
 
 static int sco_connect(struct sock *sk)
 {
-	bdaddr_t *src = &bt_sk(sk)->src;
-	bdaddr_t *dst = &bt_sk(sk)->dst;
 	struct sco_conn *conn;
 	struct hci_conn *hcon;
 	struct hci_dev  *hdev;
 	int err, type;
 
-	BT_DBG("%pMR -> %pMR", src, dst);
+	BT_DBG("%pMR -> %pMR", &sco_pi(sk)->src, &sco_pi(sk)->dst);
 
-	hdev = hci_get_route(dst, src);
+	hdev = hci_get_route(&sco_pi(sk)->dst, &sco_pi(sk)->src);
 	if (!hdev)
 		return -EHOSTUNREACH;
 
@@ -182,7 +177,8 @@ static int sco_connect(struct sock *sk)
 		goto done;
 	}
 
-	hcon = hci_connect_sco(hdev, type, dst, sco_pi(sk)->setting);
+	hcon = hci_connect_sco(hdev, type, &sco_pi(sk)->dst,
+			       sco_pi(sk)->setting);
 	if (IS_ERR(hcon)) {
 		err = PTR_ERR(hcon);
 		goto done;
@@ -196,7 +192,7 @@ static int sco_connect(struct sock *sk)
 	}
 
 	/* Update source addr of the socket */
-	bacpy(src, conn->src);
+	bacpy(&sco_pi(sk)->src, &hcon->src);
 
 	err = sco_chan_add(conn, sk, NULL);
 	if (err)
@@ -270,7 +266,7 @@ static struct sock *__sco_get_sock_listen_by_addr(bdaddr_t *ba)
 		if (sk->sk_state != BT_LISTEN)
 			continue;
 
-		if (!bacmp(&bt_sk(sk)->src, ba))
+		if (!bacmp(&sco_pi(sk)->src, ba))
 			return sk;
 	}
 
@@ -291,11 +287,11 @@ static struct sock *sco_get_sock_listen(bdaddr_t *src)
 			continue;
 
 		/* Exact match. */
-		if (!bacmp(&bt_sk(sk)->src, src))
+		if (!bacmp(&sco_pi(sk)->src, src))
 			break;
 
 		/* Closest match */
-		if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY))
+		if (!bacmp(&sco_pi(sk)->src, BDADDR_ANY))
 			sk1 = sk;
 	}
 
@@ -475,7 +471,7 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
 		goto done;
 	}
 
-	bacpy(&bt_sk(sk)->src, &sa->sco_bdaddr);
+	bacpy(&sco_pi(sk)->src, &sa->sco_bdaddr);
 
 	sk->sk_state = BT_BOUND;
 
@@ -505,7 +501,7 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen
 	lock_sock(sk);
 
 	/* Set destination address and psm */
-	bacpy(&bt_sk(sk)->dst, &sa->sco_bdaddr);
+	bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr);
 
 	err = sco_connect(sk);
 	if (err)
@@ -522,7 +518,7 @@ done:
 static int sco_sock_listen(struct socket *sock, int backlog)
 {
 	struct sock *sk = sock->sk;
-	bdaddr_t *src = &bt_sk(sk)->src;
+	bdaddr_t *src = &sco_pi(sk)->src;
 	int err = 0;
 
 	BT_DBG("sk %p backlog %d", sk, backlog);
@@ -626,9 +622,9 @@ static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len
 	*len = sizeof(struct sockaddr_sco);
 
 	if (peer)
-		bacpy(&sa->sco_bdaddr, &bt_sk(sk)->dst);
+		bacpy(&sa->sco_bdaddr, &sco_pi(sk)->dst);
 	else
-		bacpy(&sa->sco_bdaddr, &bt_sk(sk)->src);
+		bacpy(&sa->sco_bdaddr, &sco_pi(sk)->src);
 
 	return 0;
 }
@@ -999,7 +995,7 @@ static void sco_conn_ready(struct sco_conn *conn)
 	} else {
 		sco_conn_lock(conn);
 
-		parent = sco_get_sock_listen(conn->src);
+		parent = sco_get_sock_listen(&conn->hcon->src);
 		if (!parent) {
 			sco_conn_unlock(conn);
 			return;
@@ -1017,8 +1013,8 @@ static void sco_conn_ready(struct sco_conn *conn)
 
 		sco_sock_init(sk, parent);
 
-		bacpy(&bt_sk(sk)->src, conn->src);
-		bacpy(&bt_sk(sk)->dst, conn->dst);
+		bacpy(&sco_pi(sk)->src, &conn->hcon->src);
+		bacpy(&sco_pi(sk)->dst, &conn->hcon->dst);
 
 		hci_conn_hold(conn->hcon);
 		__sco_chan_add(conn, sk, parent);
@@ -1051,8 +1047,8 @@ int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 		if (sk->sk_state != BT_LISTEN)
 			continue;
 
-		if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) ||
-		    !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+		if (!bacmp(&sco_pi(sk)->src, &hdev->bdaddr) ||
+		    !bacmp(&sco_pi(sk)->src, BDADDR_ANY)) {
 			lm |= HCI_LM_ACCEPT;
 
 			if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))
@@ -1111,8 +1107,8 @@ static int sco_debugfs_show(struct seq_file *f, void *p)
 	read_lock(&sco_sk_list.lock);
 
 	sk_for_each(sk, &sco_sk_list.head) {
-		seq_printf(f, "%pMR %pMR %d\n", &bt_sk(sk)->src,
-			   &bt_sk(sk)->dst, sk->sk_state);
+		seq_printf(f, "%pMR %pMR %d\n", &sco_pi(sk)->src,
+			   &sco_pi(sk)->dst, sk->sk_state);
 	}
 
 	read_unlock(&sco_sk_list.lock);
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 884b2081a262..463e50c58716 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -28,7 +28,8 @@
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/mgmt.h>
-#include <net/bluetooth/smp.h>
+
+#include "smp.h"
 
 #define SMP_TIMEOUT	msecs_to_jiffies(30000)
 
@@ -85,8 +86,8 @@ static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
 }
 
 static int smp_c1(struct crypto_blkcipher *tfm, u8 k[16], u8 r[16],
-		u8 preq[7], u8 pres[7], u8 _iat, bdaddr_t *ia,
-		u8 _rat, bdaddr_t *ra, u8 res[16])
+		  u8 preq[7], u8 pres[7], u8 _iat, bdaddr_t *ia,
+		  u8 _rat, bdaddr_t *ra, u8 res[16])
 {
 	u8 p1[16], p2[16];
 	int err;
@@ -126,8 +127,8 @@ static int smp_c1(struct crypto_blkcipher *tfm, u8 k[16], u8 r[16],
 	return err;
 }
 
-static int smp_s1(struct crypto_blkcipher *tfm, u8 k[16],
-			u8 r1[16], u8 r2[16], u8 _r[16])
+static int smp_s1(struct crypto_blkcipher *tfm, u8 k[16], u8 r1[16],
+		  u8 r2[16], u8 _r[16])
 {
 	int err;
 
@@ -150,7 +151,7 @@ static int smp_rand(u8 *buf)
 }
 
 static struct sk_buff *smp_build_cmd(struct l2cap_conn *conn, u8 code,
-						u16 dlen, void *data)
+				     u16 dlen, void *data)
 {
 	struct sk_buff *skb;
 	struct l2cap_hdr *lh;
@@ -213,9 +214,8 @@ static __u8 seclevel_to_authreq(__u8 sec_level)
 }
 
 static void build_pairing_cmd(struct l2cap_conn *conn,
-				struct smp_cmd_pairing *req,
-				struct smp_cmd_pairing *rsp,
-				__u8 authreq)
+			      struct smp_cmd_pairing *req,
+			      struct smp_cmd_pairing *rsp, __u8 authreq)
 {
 	u8 dist_keys = 0;
 
@@ -249,7 +249,7 @@ static u8 check_enc_key_size(struct l2cap_conn *conn, __u8 max_key_size)
 	struct smp_chan *smp = conn->smp_chan;
 
 	if ((max_key_size > SMP_MAX_ENC_KEY_SIZE) ||
-			(max_key_size < SMP_MIN_ENC_KEY_SIZE))
+	    (max_key_size < SMP_MIN_ENC_KEY_SIZE))
 		return SMP_ENC_KEY_SIZE;
 
 	smp->enc_key_size = max_key_size;
@@ -263,15 +263,15 @@ static void smp_failure(struct l2cap_conn *conn, u8 reason, u8 send)
 
 	if (send)
 		smp_send_cmd(conn, SMP_CMD_PAIRING_FAIL, sizeof(reason),
-								&reason);
+			     &reason);
 
-	clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->hcon->flags);
-	mgmt_auth_failed(conn->hcon->hdev, conn->dst, hcon->type,
-			 hcon->dst_type, HCI_ERROR_AUTH_FAILURE);
+	clear_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags);
+	mgmt_auth_failed(hcon->hdev, &hcon->dst, hcon->type, hcon->dst_type,
+			 HCI_ERROR_AUTH_FAILURE);
 
 	cancel_delayed_work_sync(&conn->security_timer);
 
-	if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags))
+	if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags))
 		smp_chan_destroy(conn);
 }
 
@@ -309,8 +309,8 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
 	/* If either side has unknown io_caps, use JUST WORKS */
 	/* Otherwise, look up method from the table */
 	if (!(auth & SMP_AUTH_MITM) ||
-			local_io > SMP_IO_KEYBOARD_DISPLAY ||
-			remote_io > SMP_IO_KEYBOARD_DISPLAY)
+	    local_io > SMP_IO_KEYBOARD_DISPLAY ||
+	    remote_io > SMP_IO_KEYBOARD_DISPLAY)
 		method = JUST_WORKS;
 	else
 		method = gen_method[remote_io][local_io];
@@ -354,10 +354,10 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
 	hci_dev_lock(hcon->hdev);
 
 	if (method == REQ_PASSKEY)
-		ret = mgmt_user_passkey_request(hcon->hdev, conn->dst,
+		ret = mgmt_user_passkey_request(hcon->hdev, &hcon->dst,
 						hcon->type, hcon->dst_type);
 	else
-		ret = mgmt_user_confirm_request(hcon->hdev, conn->dst,
+		ret = mgmt_user_confirm_request(hcon->hdev, &hcon->dst,
 						hcon->type, hcon->dst_type,
 						cpu_to_le32(passkey), 0);
 
@@ -386,12 +386,13 @@ static void confirm_work(struct work_struct *work)
 	smp->tfm = tfm;
 
 	if (conn->hcon->out)
-		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp, 0,
-			     conn->src, conn->hcon->dst_type, conn->dst, res);
+		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp,
+			     conn->hcon->src_type, &conn->hcon->src,
+			     conn->hcon->dst_type, &conn->hcon->dst, res);
 	else
 		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp,
-			     conn->hcon->dst_type, conn->dst, 0, conn->src,
-			     res);
+			     conn->hcon->dst_type, &conn->hcon->dst,
+			     conn->hcon->src_type, &conn->hcon->src, res);
 	if (ret) {
 		reason = SMP_UNSPECIFIED;
 		goto error;
@@ -425,11 +426,13 @@ static void random_work(struct work_struct *work)
 	BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave");
 
 	if (hcon->out)
-		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp, 0,
-			     conn->src, hcon->dst_type, conn->dst, res);
+		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp,
+			     hcon->src_type, &hcon->src,
+			     hcon->dst_type, &hcon->dst, res);
 	else
 		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp,
-			     hcon->dst_type, conn->dst, 0, conn->src, res);
+			     hcon->dst_type, &hcon->dst,
+			     hcon->src_type, &hcon->src, res);
 	if (ret) {
 		reason = SMP_UNSPECIFIED;
 		goto error;
@@ -477,9 +480,9 @@ static void random_work(struct work_struct *work)
 		swap128(key, stk);
 
 		memset(stk + smp->enc_key_size, 0,
-				SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
+		       SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
 
-		hci_add_ltk(hcon->hdev, conn->dst, hcon->dst_type,
+		hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type,
 			    HCI_SMP_STK_SLAVE, 0, 0, stk, smp->enc_key_size,
 			    ediv, rand);
 	}
@@ -494,7 +497,7 @@ static struct smp_chan *smp_chan_create(struct l2cap_conn *conn)
 {
 	struct smp_chan *smp;
 
-	smp = kzalloc(sizeof(struct smp_chan), GFP_ATOMIC);
+	smp = kzalloc(sizeof(*smp), GFP_ATOMIC);
 	if (!smp)
 		return NULL;
 
@@ -649,7 +652,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
 	memcpy(&smp->prsp[1], rsp, sizeof(*rsp));
 
 	if ((req->auth_req & SMP_AUTH_BONDING) &&
-			(rsp->auth_req & SMP_AUTH_BONDING))
+	    (rsp->auth_req & SMP_AUTH_BONDING))
 		auth = SMP_AUTH_BONDING;
 
 	auth |= (req->auth_req | rsp->auth_req) & SMP_AUTH_MITM;
@@ -684,7 +687,7 @@ static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb)
 
 		swap128(smp->prnd, random);
 		smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(random),
-								random);
+			     random);
 	} else if (test_bit(SMP_FLAG_TK_VALID, &smp->smp_flags)) {
 		queue_work(hdev->workqueue, &smp->confirm);
 	} else {
@@ -714,7 +717,7 @@ static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level)
 	struct smp_ltk *key;
 	struct hci_conn *hcon = conn->hcon;
 
-	key = hci_find_ltk_by_addr(hcon->hdev, conn->dst, hcon->dst_type);
+	key = hci_find_ltk_by_addr(hcon->hdev, &hcon->dst, hcon->dst_type);
 	if (!key)
 		return 0;
 
@@ -728,8 +731,8 @@ static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level)
 	hcon->enc_key_size = key->enc_size;
 
 	return 1;
-
 }
+
 static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
 {
 	struct smp_cmd_security_req *rp = (void *) skb->data;
@@ -835,9 +838,9 @@ static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb)
 	skb_pull(skb, sizeof(*rp));
 
 	hci_dev_lock(hdev);
-	authenticated = (conn->hcon->sec_level == BT_SECURITY_HIGH);
-	hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type,
-		    HCI_SMP_LTK, 1, authenticated, smp->tk, smp->enc_key_size,
+	authenticated = (hcon->sec_level == BT_SECURITY_HIGH);
+	hci_add_ltk(hdev, &hcon->dst, hcon->dst_type, HCI_SMP_LTK, 1,
+		    authenticated, smp->tk, smp->enc_key_size,
 		    rp->ediv, rp->rand);
 	smp_distribute_keys(conn, 1);
 	hci_dev_unlock(hdev);
@@ -985,7 +988,7 @@ int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
 		smp_send_cmd(conn, SMP_CMD_ENCRYPT_INFO, sizeof(enc), &enc);
 
 		authenticated = hcon->sec_level == BT_SECURITY_HIGH;
-		hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type,
+		hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type,
 			    HCI_SMP_LTK_SLAVE, 1, authenticated,
 			    enc.ltk, smp->enc_key_size, ediv, ident.rand);
 
@@ -1007,10 +1010,10 @@ int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
 
 		/* Just public address */
 		memset(&addrinfo, 0, sizeof(addrinfo));
-		bacpy(&addrinfo.bdaddr, conn->src);
+		bacpy(&addrinfo.bdaddr, &conn->hcon->src);
 
 		smp_send_cmd(conn, SMP_CMD_IDENT_ADDR_INFO, sizeof(addrinfo),
-								&addrinfo);
+			     &addrinfo);
 
 		*keydist &= ~SMP_DIST_ID_KEY;
 	}
diff --git a/net/bluetooth/smp.h b/net/bluetooth/smp.h
new file mode 100644
index 000000000000..f8ba07f3e5fa
--- /dev/null
+++ b/net/bluetooth/smp.h
@@ -0,0 +1,146 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL 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.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#ifndef __SMP_H
+#define __SMP_H
+
+struct smp_command_hdr {
+	__u8	code;
+} __packed;
+
+#define SMP_CMD_PAIRING_REQ	0x01
+#define SMP_CMD_PAIRING_RSP	0x02
+struct smp_cmd_pairing {
+	__u8	io_capability;
+	__u8	oob_flag;
+	__u8	auth_req;
+	__u8	max_key_size;
+	__u8	init_key_dist;
+	__u8	resp_key_dist;
+} __packed;
+
+#define SMP_IO_DISPLAY_ONLY	0x00
+#define SMP_IO_DISPLAY_YESNO	0x01
+#define SMP_IO_KEYBOARD_ONLY	0x02
+#define SMP_IO_NO_INPUT_OUTPUT	0x03
+#define SMP_IO_KEYBOARD_DISPLAY	0x04
+
+#define SMP_OOB_NOT_PRESENT	0x00
+#define SMP_OOB_PRESENT		0x01
+
+#define SMP_DIST_ENC_KEY	0x01
+#define SMP_DIST_ID_KEY		0x02
+#define SMP_DIST_SIGN		0x04
+
+#define SMP_AUTH_NONE		0x00
+#define SMP_AUTH_BONDING	0x01
+#define SMP_AUTH_MITM		0x04
+
+#define SMP_CMD_PAIRING_CONFIRM	0x03
+struct smp_cmd_pairing_confirm {
+	__u8	confirm_val[16];
+} __packed;
+
+#define SMP_CMD_PAIRING_RANDOM	0x04
+struct smp_cmd_pairing_random {
+	__u8	rand_val[16];
+} __packed;
+
+#define SMP_CMD_PAIRING_FAIL	0x05
+struct smp_cmd_pairing_fail {
+	__u8	reason;
+} __packed;
+
+#define SMP_CMD_ENCRYPT_INFO	0x06
+struct smp_cmd_encrypt_info {
+	__u8	ltk[16];
+} __packed;
+
+#define SMP_CMD_MASTER_IDENT	0x07
+struct smp_cmd_master_ident {
+	__le16	ediv;
+	__u8	rand[8];
+} __packed;
+
+#define SMP_CMD_IDENT_INFO	0x08
+struct smp_cmd_ident_info {
+	__u8	irk[16];
+} __packed;
+
+#define SMP_CMD_IDENT_ADDR_INFO	0x09
+struct smp_cmd_ident_addr_info {
+	__u8	addr_type;
+	bdaddr_t bdaddr;
+} __packed;
+
+#define SMP_CMD_SIGN_INFO	0x0a
+struct smp_cmd_sign_info {
+	__u8	csrk[16];
+} __packed;
+
+#define SMP_CMD_SECURITY_REQ	0x0b
+struct smp_cmd_security_req {
+	__u8	auth_req;
+} __packed;
+
+#define SMP_PASSKEY_ENTRY_FAILED	0x01
+#define SMP_OOB_NOT_AVAIL		0x02
+#define SMP_AUTH_REQUIREMENTS		0x03
+#define SMP_CONFIRM_FAILED		0x04
+#define SMP_PAIRING_NOTSUPP		0x05
+#define SMP_ENC_KEY_SIZE		0x06
+#define SMP_CMD_NOTSUPP			0x07
+#define SMP_UNSPECIFIED			0x08
+#define SMP_REPEATED_ATTEMPTS		0x09
+
+#define SMP_MIN_ENC_KEY_SIZE		7
+#define SMP_MAX_ENC_KEY_SIZE		16
+
+#define SMP_FLAG_TK_VALID	1
+#define SMP_FLAG_CFM_PENDING	2
+#define SMP_FLAG_MITM_AUTH	3
+
+struct smp_chan {
+	struct l2cap_conn *conn;
+	u8		preq[7]; /* SMP Pairing Request */
+	u8		prsp[7]; /* SMP Pairing Response */
+	u8		prnd[16]; /* SMP Pairing Random (local) */
+	u8		rrnd[16]; /* SMP Pairing Random (remote) */
+	u8		pcnf[16]; /* SMP Pairing Confirm */
+	u8		tk[16]; /* SMP Temporary Key */
+	u8		enc_key_size;
+	unsigned long	smp_flags;
+	struct crypto_blkcipher	*tfm;
+	struct work_struct confirm;
+	struct work_struct random;
+
+};
+
+/* SMP Commands */
+int smp_conn_security(struct hci_conn *hcon, __u8 sec_level);
+int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb);
+int smp_distribute_keys(struct l2cap_conn *conn, __u8 force);
+int smp_user_confirm_reply(struct hci_conn *conn, u16 mgmt_op, __le32 passkey);
+
+void smp_chan_destroy(struct l2cap_conn *conn);
+
+#endif /* __SMP_H */
diff --git a/net/nfc/Kconfig b/net/nfc/Kconfig
index 5948b2fc72f6..6e0fa0cce198 100644
--- a/net/nfc/Kconfig
+++ b/net/nfc/Kconfig
@@ -14,6 +14,20 @@ menuconfig NFC
 	  To compile this support as a module, choose M here: the module will
 	  be called nfc.
 
+config NFC_DIGITAL
+	depends on NFC
+	select CRC_CCITT
+	select CRC_ITU_T
+	tristate "NFC Digital Protocol stack support"
+	default n
+	help
+	  Say Y if you want to build NFC digital protocol stack support.
+	  This is needed by NFC chipsets whose firmware only implement
+	  the NFC analog layer.
+
+	  To compile this support as a module, choose M here: the module will
+	  be called nfc_digital.
+
 source "net/nfc/nci/Kconfig"
 source "net/nfc/hci/Kconfig"
 
diff --git a/net/nfc/Makefile b/net/nfc/Makefile
index a76f4533cb6c..2555ff8e7219 100644
--- a/net/nfc/Makefile
+++ b/net/nfc/Makefile
@@ -5,7 +5,9 @@
 obj-$(CONFIG_NFC) += nfc.o
 obj-$(CONFIG_NFC_NCI) += nci/
 obj-$(CONFIG_NFC_HCI) += hci/
+obj-$(CONFIG_NFC_DIGITAL) += nfc_digital.o
 
 nfc-objs := core.o netlink.o af_nfc.o rawsock.o llcp_core.o llcp_commands.o \
 		llcp_sock.o
 
+nfc_digital-objs := digital_core.o digital_technology.o digital_dep.o
diff --git a/net/nfc/core.c b/net/nfc/core.c
index e92923cf3e03..872529105abc 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -384,6 +384,19 @@ int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
 {
 	dev->dep_link_up = true;
 
+	if (!dev->active_target) {
+		struct nfc_target *target;
+
+		target = nfc_find_target(dev, target_idx);
+		if (target == NULL)
+			return -ENOTCONN;
+
+		dev->active_target = target;
+	}
+
+	dev->polling = false;
+	dev->rf_mode = rf_mode;
+
 	nfc_llcp_mac_is_up(dev, target_idx, comm_mode, rf_mode);
 
 	return nfc_genl_dep_link_up_event(dev, target_idx, comm_mode, rf_mode);
@@ -536,7 +549,7 @@ error:
 	return rc;
 }
 
-static struct nfc_se *find_se(struct nfc_dev *dev, u32 se_idx)
+struct nfc_se *nfc_find_se(struct nfc_dev *dev, u32 se_idx)
 {
 	struct nfc_se *se, *n;
 
@@ -546,6 +559,7 @@ static struct nfc_se *find_se(struct nfc_dev *dev, u32 se_idx)
 
 	return NULL;
 }
+EXPORT_SYMBOL(nfc_find_se);
 
 int nfc_enable_se(struct nfc_dev *dev, u32 se_idx)
 {
@@ -577,7 +591,7 @@ int nfc_enable_se(struct nfc_dev *dev, u32 se_idx)
 		goto error;
 	}
 
-	se = find_se(dev, se_idx);
+	se = nfc_find_se(dev, se_idx);
 	if (!se) {
 		rc = -EINVAL;
 		goto error;
@@ -622,7 +636,7 @@ int nfc_disable_se(struct nfc_dev *dev, u32 se_idx)
 		goto error;
 	}
 
-	se = find_se(dev, se_idx);
+	se = nfc_find_se(dev, se_idx);
 	if (!se) {
 		rc = -EINVAL;
 		goto error;
@@ -881,7 +895,7 @@ int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type)
 
 	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
 
-	se = find_se(dev, se_idx);
+	se = nfc_find_se(dev, se_idx);
 	if (se)
 		return -EALREADY;
 
diff --git a/net/nfc/digital.h b/net/nfc/digital.h
new file mode 100644
index 000000000000..08b29b55ea63
--- /dev/null
+++ b/net/nfc/digital.h
@@ -0,0 +1,170 @@
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef __DIGITAL_H
+#define __DIGITAL_H
+
+#include <net/nfc/nfc.h>
+#include <net/nfc/digital.h>
+
+#include <linux/crc-ccitt.h>
+#include <linux/crc-itu-t.h>
+
+#define PROTOCOL_ERR(req) pr_err("%d: NFC Digital Protocol error: %s\n", \
+				 __LINE__, req)
+
+#define DIGITAL_CMD_IN_SEND        0
+#define DIGITAL_CMD_TG_SEND        1
+#define DIGITAL_CMD_TG_LISTEN      2
+#define DIGITAL_CMD_TG_LISTEN_MDAA 3
+
+#define DIGITAL_MAX_HEADER_LEN 7
+#define DIGITAL_CRC_LEN        2
+
+#define DIGITAL_SENSF_NFCID2_NFC_DEP_B1 0x01
+#define DIGITAL_SENSF_NFCID2_NFC_DEP_B2 0xFE
+
+#define DIGITAL_SENS_RES_NFC_DEP 0x0100
+#define DIGITAL_SEL_RES_NFC_DEP  0x40
+#define DIGITAL_SENSF_FELICA_SC  0xFFFF
+
+#define DIGITAL_DRV_CAPS_IN_CRC(ddev) \
+	((ddev)->driver_capabilities & NFC_DIGITAL_DRV_CAPS_IN_CRC)
+#define DIGITAL_DRV_CAPS_TG_CRC(ddev) \
+	((ddev)->driver_capabilities & NFC_DIGITAL_DRV_CAPS_TG_CRC)
+
+struct digital_data_exch {
+	data_exchange_cb_t cb;
+	void *cb_context;
+};
+
+struct sk_buff *digital_skb_alloc(struct nfc_digital_dev *ddev,
+				  unsigned int len);
+
+int digital_send_cmd(struct nfc_digital_dev *ddev, u8 cmd_type,
+		     struct sk_buff *skb, struct digital_tg_mdaa_params *params,
+		     u16 timeout, nfc_digital_cmd_complete_t cmd_cb,
+		     void *cb_context);
+
+int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param);
+static inline int digital_in_send_cmd(struct nfc_digital_dev *ddev,
+				      struct sk_buff *skb, u16 timeout,
+				      nfc_digital_cmd_complete_t cmd_cb,
+				      void *cb_context)
+{
+	return digital_send_cmd(ddev, DIGITAL_CMD_IN_SEND, skb, NULL, timeout,
+				cmd_cb, cb_context);
+}
+
+void digital_poll_next_tech(struct nfc_digital_dev *ddev);
+
+int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech);
+int digital_in_send_sensf_req(struct nfc_digital_dev *ddev, u8 rf_tech);
+
+int digital_target_found(struct nfc_digital_dev *ddev,
+			 struct nfc_target *target, u8 protocol);
+
+int digital_in_recv_mifare_res(struct sk_buff *resp);
+
+int digital_in_send_atr_req(struct nfc_digital_dev *ddev,
+			    struct nfc_target *target, __u8 comm_mode, __u8 *gb,
+			    size_t gb_len);
+int digital_in_send_dep_req(struct nfc_digital_dev *ddev,
+			    struct nfc_target *target, struct sk_buff *skb,
+			    struct digital_data_exch *data_exch);
+
+int digital_tg_configure_hw(struct nfc_digital_dev *ddev, int type, int param);
+static inline int digital_tg_send_cmd(struct nfc_digital_dev *ddev,
+			struct sk_buff *skb, u16 timeout,
+			nfc_digital_cmd_complete_t cmd_cb, void *cb_context)
+{
+	return digital_send_cmd(ddev, DIGITAL_CMD_TG_SEND, skb, NULL, timeout,
+				cmd_cb, cb_context);
+}
+
+void digital_tg_recv_sens_req(struct nfc_digital_dev *ddev, void *arg,
+			      struct sk_buff *resp);
+
+void digital_tg_recv_sensf_req(struct nfc_digital_dev *ddev, void *arg,
+			       struct sk_buff *resp);
+
+static inline int digital_tg_listen(struct nfc_digital_dev *ddev, u16 timeout,
+				    nfc_digital_cmd_complete_t cb, void *arg)
+{
+	return digital_send_cmd(ddev, DIGITAL_CMD_TG_LISTEN, NULL, NULL,
+				timeout, cb, arg);
+}
+
+void digital_tg_recv_atr_req(struct nfc_digital_dev *ddev, void *arg,
+			     struct sk_buff *resp);
+
+int digital_tg_send_dep_res(struct nfc_digital_dev *ddev, struct sk_buff *skb);
+
+int digital_tg_listen_nfca(struct nfc_digital_dev *ddev, u8 rf_tech);
+int digital_tg_listen_nfcf(struct nfc_digital_dev *ddev, u8 rf_tech);
+
+typedef u16 (*crc_func_t)(u16, const u8 *, size_t);
+
+#define CRC_A_INIT 0x6363
+#define CRC_B_INIT 0xFFFF
+#define CRC_F_INIT 0x0000
+
+void digital_skb_add_crc(struct sk_buff *skb, crc_func_t crc_func, u16 init,
+			 u8 bitwise_inv, u8 msb_first);
+
+static inline void digital_skb_add_crc_a(struct sk_buff *skb)
+{
+	digital_skb_add_crc(skb, crc_ccitt, CRC_A_INIT, 0, 0);
+}
+
+static inline void digital_skb_add_crc_b(struct sk_buff *skb)
+{
+	digital_skb_add_crc(skb, crc_ccitt, CRC_B_INIT, 1, 0);
+}
+
+static inline void digital_skb_add_crc_f(struct sk_buff *skb)
+{
+	digital_skb_add_crc(skb, crc_itu_t, CRC_F_INIT, 0, 1);
+}
+
+static inline void digital_skb_add_crc_none(struct sk_buff *skb)
+{
+	return;
+}
+
+int digital_skb_check_crc(struct sk_buff *skb, crc_func_t crc_func,
+			  u16 crc_init, u8 bitwise_inv, u8 msb_first);
+
+static inline int digital_skb_check_crc_a(struct sk_buff *skb)
+{
+	return digital_skb_check_crc(skb, crc_ccitt, CRC_A_INIT, 0, 0);
+}
+
+static inline int digital_skb_check_crc_b(struct sk_buff *skb)
+{
+	return digital_skb_check_crc(skb, crc_ccitt, CRC_B_INIT, 1, 0);
+}
+
+static inline int digital_skb_check_crc_f(struct sk_buff *skb)
+{
+	return digital_skb_check_crc(skb, crc_itu_t, CRC_F_INIT, 0, 1);
+}
+
+static inline int digital_skb_check_crc_none(struct sk_buff *skb)
+{
+	return 0;
+}
+
+#endif /* __DIGITAL_H */
diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
new file mode 100644
index 000000000000..09fc95439955
--- /dev/null
+++ b/net/nfc/digital_core.c
@@ -0,0 +1,737 @@
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#define pr_fmt(fmt) "digital: %s: " fmt, __func__
+
+#include <linux/module.h>
+
+#include "digital.h"
+
+#define DIGITAL_PROTO_NFCA_RF_TECH \
+	(NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK | NFC_PROTO_NFC_DEP_MASK)
+
+#define DIGITAL_PROTO_NFCF_RF_TECH \
+	(NFC_PROTO_FELICA_MASK | NFC_PROTO_NFC_DEP_MASK)
+
+struct digital_cmd {
+	struct list_head queue;
+
+	u8 type;
+	u8 pending;
+
+	u16 timeout;
+	struct sk_buff *req;
+	struct sk_buff *resp;
+	struct digital_tg_mdaa_params *mdaa_params;
+
+	nfc_digital_cmd_complete_t cmd_cb;
+	void *cb_context;
+};
+
+struct sk_buff *digital_skb_alloc(struct nfc_digital_dev *ddev,
+				  unsigned int len)
+{
+	struct sk_buff *skb;
+
+	skb = alloc_skb(len + ddev->tx_headroom + ddev->tx_tailroom,
+			GFP_KERNEL);
+	if (skb)
+		skb_reserve(skb, ddev->tx_headroom);
+
+	return skb;
+}
+
+void digital_skb_add_crc(struct sk_buff *skb, crc_func_t crc_func, u16 init,
+			 u8 bitwise_inv, u8 msb_first)
+{
+	u16 crc;
+
+	crc = crc_func(init, skb->data, skb->len);
+
+	if (bitwise_inv)
+		crc = ~crc;
+
+	if (msb_first)
+		crc = __fswab16(crc);
+
+	*skb_put(skb, 1) = crc & 0xFF;
+	*skb_put(skb, 1) = (crc >> 8) & 0xFF;
+}
+
+int digital_skb_check_crc(struct sk_buff *skb, crc_func_t crc_func,
+			  u16 crc_init, u8 bitwise_inv, u8 msb_first)
+{
+	int rc;
+	u16 crc;
+
+	if (skb->len <= 2)
+		return -EIO;
+
+	crc = crc_func(crc_init, skb->data, skb->len - 2);
+
+	if (bitwise_inv)
+		crc = ~crc;
+
+	if (msb_first)
+		crc = __swab16(crc);
+
+	rc = (skb->data[skb->len - 2] - (crc & 0xFF)) +
+	     (skb->data[skb->len - 1] - ((crc >> 8) & 0xFF));
+
+	if (rc)
+		return -EIO;
+
+	skb_trim(skb, skb->len - 2);
+
+	return 0;
+}
+
+static inline void digital_switch_rf(struct nfc_digital_dev *ddev, bool on)
+{
+	ddev->ops->switch_rf(ddev, on);
+}
+
+static inline void digital_abort_cmd(struct nfc_digital_dev *ddev)
+{
+	ddev->ops->abort_cmd(ddev);
+}
+
+static void digital_wq_cmd_complete(struct work_struct *work)
+{
+	struct digital_cmd *cmd;
+	struct nfc_digital_dev *ddev = container_of(work,
+						    struct nfc_digital_dev,
+						    cmd_complete_work);
+
+	mutex_lock(&ddev->cmd_lock);
+
+	cmd = list_first_entry_or_null(&ddev->cmd_queue, struct digital_cmd,
+				       queue);
+	if (!cmd) {
+		mutex_unlock(&ddev->cmd_lock);
+		return;
+	}
+
+	list_del(&cmd->queue);
+
+	mutex_unlock(&ddev->cmd_lock);
+
+	if (!IS_ERR(cmd->resp))
+		print_hex_dump_debug("DIGITAL RX: ", DUMP_PREFIX_NONE, 16, 1,
+				     cmd->resp->data, cmd->resp->len, false);
+
+	cmd->cmd_cb(ddev, cmd->cb_context, cmd->resp);
+
+	kfree(cmd->mdaa_params);
+	kfree(cmd);
+
+	schedule_work(&ddev->cmd_work);
+}
+
+static void digital_send_cmd_complete(struct nfc_digital_dev *ddev,
+				      void *arg, struct sk_buff *resp)
+{
+	struct digital_cmd *cmd = arg;
+
+	cmd->resp = resp;
+
+	schedule_work(&ddev->cmd_complete_work);
+}
+
+static void digital_wq_cmd(struct work_struct *work)
+{
+	int rc;
+	struct digital_cmd *cmd;
+	struct digital_tg_mdaa_params *params;
+	struct nfc_digital_dev *ddev = container_of(work,
+						    struct nfc_digital_dev,
+						    cmd_work);
+
+	mutex_lock(&ddev->cmd_lock);
+
+	cmd = list_first_entry_or_null(&ddev->cmd_queue, struct digital_cmd,
+				       queue);
+	if (!cmd || cmd->pending) {
+		mutex_unlock(&ddev->cmd_lock);
+		return;
+	}
+
+	mutex_unlock(&ddev->cmd_lock);
+
+	if (cmd->req)
+		print_hex_dump_debug("DIGITAL TX: ", DUMP_PREFIX_NONE, 16, 1,
+				     cmd->req->data, cmd->req->len, false);
+
+	switch (cmd->type) {
+	case DIGITAL_CMD_IN_SEND:
+		rc = ddev->ops->in_send_cmd(ddev, cmd->req, cmd->timeout,
+					    digital_send_cmd_complete, cmd);
+		break;
+
+	case DIGITAL_CMD_TG_SEND:
+		rc = ddev->ops->tg_send_cmd(ddev, cmd->req, cmd->timeout,
+					    digital_send_cmd_complete, cmd);
+		break;
+
+	case DIGITAL_CMD_TG_LISTEN:
+		rc = ddev->ops->tg_listen(ddev, cmd->timeout,
+					  digital_send_cmd_complete, cmd);
+		break;
+
+	case DIGITAL_CMD_TG_LISTEN_MDAA:
+		params = cmd->mdaa_params;
+
+		rc = ddev->ops->tg_listen_mdaa(ddev, params, cmd->timeout,
+					       digital_send_cmd_complete, cmd);
+		break;
+
+	default:
+		pr_err("Unknown cmd type %d\n", cmd->type);
+		return;
+	}
+
+	if (!rc)
+		return;
+
+	pr_err("in_send_command returned err %d\n", rc);
+
+	mutex_lock(&ddev->cmd_lock);
+	list_del(&cmd->queue);
+	mutex_unlock(&ddev->cmd_lock);
+
+	kfree_skb(cmd->req);
+	kfree(cmd->mdaa_params);
+	kfree(cmd);
+
+	schedule_work(&ddev->cmd_work);
+}
+
+int digital_send_cmd(struct nfc_digital_dev *ddev, u8 cmd_type,
+		     struct sk_buff *skb, struct digital_tg_mdaa_params *params,
+		     u16 timeout, nfc_digital_cmd_complete_t cmd_cb,
+		     void *cb_context)
+{
+	struct digital_cmd *cmd;
+
+	cmd = kzalloc(sizeof(struct digital_cmd), GFP_KERNEL);
+	if (!cmd)
+		return -ENOMEM;
+
+	cmd->type = cmd_type;
+	cmd->timeout = timeout;
+	cmd->req = skb;
+	cmd->mdaa_params = params;
+	cmd->cmd_cb = cmd_cb;
+	cmd->cb_context = cb_context;
+	INIT_LIST_HEAD(&cmd->queue);
+
+	mutex_lock(&ddev->cmd_lock);
+	list_add_tail(&cmd->queue, &ddev->cmd_queue);
+	mutex_unlock(&ddev->cmd_lock);
+
+	schedule_work(&ddev->cmd_work);
+
+	return 0;
+}
+
+int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
+{
+	int rc;
+
+	rc = ddev->ops->in_configure_hw(ddev, type, param);
+	if (rc)
+		pr_err("in_configure_hw failed: %d\n", rc);
+
+	return rc;
+}
+
+int digital_tg_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
+{
+	int rc;
+
+	rc = ddev->ops->tg_configure_hw(ddev, type, param);
+	if (rc)
+		pr_err("tg_configure_hw failed: %d\n", rc);
+
+	return rc;
+}
+
+static int digital_tg_listen_mdaa(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	struct digital_tg_mdaa_params *params;
+
+	params = kzalloc(sizeof(struct digital_tg_mdaa_params), GFP_KERNEL);
+	if (!params)
+		return -ENOMEM;
+
+	params->sens_res = DIGITAL_SENS_RES_NFC_DEP;
+	get_random_bytes(params->nfcid1, sizeof(params->nfcid1));
+	params->sel_res = DIGITAL_SEL_RES_NFC_DEP;
+
+	params->nfcid2[0] = DIGITAL_SENSF_NFCID2_NFC_DEP_B1;
+	params->nfcid2[1] = DIGITAL_SENSF_NFCID2_NFC_DEP_B2;
+	get_random_bytes(params->nfcid2 + 2, NFC_NFCID2_MAXSIZE - 2);
+	params->sc = DIGITAL_SENSF_FELICA_SC;
+
+	return digital_send_cmd(ddev, DIGITAL_CMD_TG_LISTEN_MDAA, NULL, params,
+				500, digital_tg_recv_atr_req, NULL);
+}
+
+int digital_target_found(struct nfc_digital_dev *ddev,
+			 struct nfc_target *target, u8 protocol)
+{
+	int rc;
+	u8 framing;
+	u8 rf_tech;
+	int (*check_crc)(struct sk_buff *skb);
+	void (*add_crc)(struct sk_buff *skb);
+
+	rf_tech = ddev->poll_techs[ddev->poll_tech_index].rf_tech;
+
+	switch (protocol) {
+	case NFC_PROTO_JEWEL:
+		framing = NFC_DIGITAL_FRAMING_NFCA_T1T;
+		check_crc = digital_skb_check_crc_b;
+		add_crc = digital_skb_add_crc_b;
+		break;
+
+	case NFC_PROTO_MIFARE:
+		framing = NFC_DIGITAL_FRAMING_NFCA_T2T;
+		check_crc = digital_skb_check_crc_a;
+		add_crc = digital_skb_add_crc_a;
+		break;
+
+	case NFC_PROTO_FELICA:
+		framing = NFC_DIGITAL_FRAMING_NFCF_T3T;
+		check_crc = digital_skb_check_crc_f;
+		add_crc = digital_skb_add_crc_f;
+		break;
+
+	case NFC_PROTO_NFC_DEP:
+		if (rf_tech == NFC_DIGITAL_RF_TECH_106A) {
+			framing = NFC_DIGITAL_FRAMING_NFCA_NFC_DEP;
+			check_crc = digital_skb_check_crc_a;
+			add_crc = digital_skb_add_crc_a;
+		} else {
+			framing = NFC_DIGITAL_FRAMING_NFCF_NFC_DEP;
+			check_crc = digital_skb_check_crc_f;
+			add_crc = digital_skb_add_crc_f;
+		}
+		break;
+
+	default:
+		pr_err("Invalid protocol %d\n", protocol);
+		return -EINVAL;
+	}
+
+	pr_debug("rf_tech=%d, protocol=%d\n", rf_tech, protocol);
+
+	ddev->curr_rf_tech = rf_tech;
+	ddev->curr_protocol = protocol;
+
+	if (DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
+		ddev->skb_add_crc = digital_skb_add_crc_none;
+		ddev->skb_check_crc = digital_skb_check_crc_none;
+	} else {
+		ddev->skb_add_crc = add_crc;
+		ddev->skb_check_crc = check_crc;
+	}
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING, framing);
+	if (rc)
+		return rc;
+
+	target->supported_protocols = (1 << protocol);
+	rc = nfc_targets_found(ddev->nfc_dev, target, 1);
+	if (rc)
+		return rc;
+
+	ddev->poll_tech_count = 0;
+
+	return 0;
+}
+
+void digital_poll_next_tech(struct nfc_digital_dev *ddev)
+{
+	digital_switch_rf(ddev, 0);
+
+	mutex_lock(&ddev->poll_lock);
+
+	if (!ddev->poll_tech_count) {
+		mutex_unlock(&ddev->poll_lock);
+		return;
+	}
+
+	ddev->poll_tech_index = (ddev->poll_tech_index + 1) %
+				ddev->poll_tech_count;
+
+	mutex_unlock(&ddev->poll_lock);
+
+	schedule_work(&ddev->poll_work);
+}
+
+static void digital_wq_poll(struct work_struct *work)
+{
+	int rc;
+	struct digital_poll_tech *poll_tech;
+	struct nfc_digital_dev *ddev = container_of(work,
+						    struct nfc_digital_dev,
+						    poll_work);
+	mutex_lock(&ddev->poll_lock);
+
+	if (!ddev->poll_tech_count) {
+		mutex_unlock(&ddev->poll_lock);
+		return;
+	}
+
+	poll_tech = &ddev->poll_techs[ddev->poll_tech_index];
+
+	mutex_unlock(&ddev->poll_lock);
+
+	rc = poll_tech->poll_func(ddev, poll_tech->rf_tech);
+	if (rc)
+		digital_poll_next_tech(ddev);
+}
+
+static void digital_add_poll_tech(struct nfc_digital_dev *ddev, u8 rf_tech,
+				  digital_poll_t poll_func)
+{
+	struct digital_poll_tech *poll_tech;
+
+	if (ddev->poll_tech_count >= NFC_DIGITAL_POLL_MODE_COUNT_MAX)
+		return;
+
+	poll_tech = &ddev->poll_techs[ddev->poll_tech_count++];
+
+	poll_tech->rf_tech = rf_tech;
+	poll_tech->poll_func = poll_func;
+}
+
+/**
+ * start_poll operation
+ *
+ * For every supported protocol, the corresponding polling function is added
+ * to the table of polling technologies (ddev->poll_techs[]) using
+ * digital_add_poll_tech().
+ * When a polling function fails (by timeout or protocol error) the next one is
+ * schedule by digital_poll_next_tech() on the poll workqueue (ddev->poll_work).
+ */
+static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
+			      __u32 tm_protocols)
+{
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+	u32 matching_im_protocols, matching_tm_protocols;
+
+	pr_debug("protocols: im 0x%x, tm 0x%x, supported 0x%x\n", im_protocols,
+		 tm_protocols, ddev->protocols);
+
+	matching_im_protocols = ddev->protocols & im_protocols;
+	matching_tm_protocols = ddev->protocols & tm_protocols;
+
+	if (!matching_im_protocols && !matching_tm_protocols) {
+		pr_err("Unknown protocol\n");
+		return -EINVAL;
+	}
+
+	if (ddev->poll_tech_count) {
+		pr_err("Already polling\n");
+		return -EBUSY;
+	}
+
+	if (ddev->curr_protocol) {
+		pr_err("A target is already active\n");
+		return -EBUSY;
+	}
+
+	ddev->poll_tech_count = 0;
+	ddev->poll_tech_index = 0;
+
+	if (matching_im_protocols & DIGITAL_PROTO_NFCA_RF_TECH)
+		digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_106A,
+				      digital_in_send_sens_req);
+
+	if (im_protocols & DIGITAL_PROTO_NFCF_RF_TECH) {
+		digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_212F,
+				      digital_in_send_sensf_req);
+
+		digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_424F,
+				      digital_in_send_sensf_req);
+	}
+
+	if (tm_protocols & NFC_PROTO_NFC_DEP_MASK) {
+		if (ddev->ops->tg_listen_mdaa) {
+			digital_add_poll_tech(ddev, 0,
+					      digital_tg_listen_mdaa);
+		} else {
+			digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_106A,
+					      digital_tg_listen_nfca);
+
+			digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_212F,
+					      digital_tg_listen_nfcf);
+
+			digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_424F,
+					      digital_tg_listen_nfcf);
+		}
+	}
+
+	if (!ddev->poll_tech_count) {
+		pr_err("Unsupported protocols: im=0x%x, tm=0x%x\n",
+		       matching_im_protocols, matching_tm_protocols);
+		return -EINVAL;
+	}
+
+	schedule_work(&ddev->poll_work);
+
+	return 0;
+}
+
+static void digital_stop_poll(struct nfc_dev *nfc_dev)
+{
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	mutex_lock(&ddev->poll_lock);
+
+	if (!ddev->poll_tech_count) {
+		pr_err("Polling operation was not running\n");
+		mutex_unlock(&ddev->poll_lock);
+		return;
+	}
+
+	ddev->poll_tech_count = 0;
+
+	mutex_unlock(&ddev->poll_lock);
+
+	cancel_work_sync(&ddev->poll_work);
+
+	digital_abort_cmd(ddev);
+}
+
+static int digital_dev_up(struct nfc_dev *nfc_dev)
+{
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	digital_switch_rf(ddev, 1);
+
+	return 0;
+}
+
+static int digital_dev_down(struct nfc_dev *nfc_dev)
+{
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	digital_switch_rf(ddev, 0);
+
+	return 0;
+}
+
+static int digital_dep_link_up(struct nfc_dev *nfc_dev,
+			       struct nfc_target *target,
+			       __u8 comm_mode, __u8 *gb, size_t gb_len)
+{
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	return digital_in_send_atr_req(ddev, target, comm_mode, gb, gb_len);
+}
+
+static int digital_dep_link_down(struct nfc_dev *nfc_dev)
+{
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	ddev->curr_protocol = 0;
+
+	return 0;
+}
+
+static int digital_activate_target(struct nfc_dev *nfc_dev,
+				   struct nfc_target *target, __u32 protocol)
+{
+	return 0;
+}
+
+static void digital_deactivate_target(struct nfc_dev *nfc_dev,
+				      struct nfc_target *target)
+{
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	ddev->curr_protocol = 0;
+}
+
+static int digital_tg_send(struct nfc_dev *dev, struct sk_buff *skb)
+{
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(dev);
+
+	return digital_tg_send_dep_res(ddev, skb);
+}
+
+static void digital_in_send_complete(struct nfc_digital_dev *ddev, void *arg,
+				     struct sk_buff *resp)
+{
+	struct digital_data_exch *data_exch = arg;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		goto done;
+	}
+
+	if (ddev->curr_protocol == NFC_PROTO_MIFARE)
+		rc = digital_in_recv_mifare_res(resp);
+	else
+		rc = ddev->skb_check_crc(resp);
+
+	if (rc) {
+		kfree_skb(resp);
+		resp = NULL;
+	}
+
+done:
+	data_exch->cb(data_exch->cb_context, resp, rc);
+
+	kfree(data_exch);
+}
+
+static int digital_in_send(struct nfc_dev *nfc_dev, struct nfc_target *target,
+			   struct sk_buff *skb, data_exchange_cb_t cb,
+			   void *cb_context)
+{
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+	struct digital_data_exch *data_exch;
+
+	data_exch = kzalloc(sizeof(struct digital_data_exch), GFP_KERNEL);
+	if (!data_exch) {
+		pr_err("Failed to allocate data_exch struct\n");
+		return -ENOMEM;
+	}
+
+	data_exch->cb = cb;
+	data_exch->cb_context = cb_context;
+
+	if (ddev->curr_protocol == NFC_PROTO_NFC_DEP)
+		return digital_in_send_dep_req(ddev, target, skb, data_exch);
+
+	ddev->skb_add_crc(skb);
+
+	return digital_in_send_cmd(ddev, skb, 500, digital_in_send_complete,
+				   data_exch);
+}
+
+static struct nfc_ops digital_nfc_ops = {
+	.dev_up = digital_dev_up,
+	.dev_down = digital_dev_down,
+	.start_poll = digital_start_poll,
+	.stop_poll = digital_stop_poll,
+	.dep_link_up = digital_dep_link_up,
+	.dep_link_down = digital_dep_link_down,
+	.activate_target = digital_activate_target,
+	.deactivate_target = digital_deactivate_target,
+	.tm_send = digital_tg_send,
+	.im_transceive = digital_in_send,
+};
+
+struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
+					    __u32 supported_protocols,
+					    __u32 driver_capabilities,
+					    int tx_headroom, int tx_tailroom)
+{
+	struct nfc_digital_dev *ddev;
+
+	if (!ops->in_configure_hw || !ops->in_send_cmd || !ops->tg_listen ||
+	    !ops->tg_configure_hw || !ops->tg_send_cmd || !ops->abort_cmd ||
+	    !ops->switch_rf)
+		return NULL;
+
+	ddev = kzalloc(sizeof(struct nfc_digital_dev), GFP_KERNEL);
+	if (!ddev)
+		return NULL;
+
+	ddev->driver_capabilities = driver_capabilities;
+	ddev->ops = ops;
+
+	mutex_init(&ddev->cmd_lock);
+	INIT_LIST_HEAD(&ddev->cmd_queue);
+
+	INIT_WORK(&ddev->cmd_work, digital_wq_cmd);
+	INIT_WORK(&ddev->cmd_complete_work, digital_wq_cmd_complete);
+
+	mutex_init(&ddev->poll_lock);
+	INIT_WORK(&ddev->poll_work, digital_wq_poll);
+
+	if (supported_protocols & NFC_PROTO_JEWEL_MASK)
+		ddev->protocols |= NFC_PROTO_JEWEL_MASK;
+	if (supported_protocols & NFC_PROTO_MIFARE_MASK)
+		ddev->protocols |= NFC_PROTO_MIFARE_MASK;
+	if (supported_protocols & NFC_PROTO_FELICA_MASK)
+		ddev->protocols |= NFC_PROTO_FELICA_MASK;
+	if (supported_protocols & NFC_PROTO_NFC_DEP_MASK)
+		ddev->protocols |= NFC_PROTO_NFC_DEP_MASK;
+
+	ddev->tx_headroom = tx_headroom + DIGITAL_MAX_HEADER_LEN;
+	ddev->tx_tailroom = tx_tailroom + DIGITAL_CRC_LEN;
+
+	ddev->nfc_dev = nfc_allocate_device(&digital_nfc_ops, ddev->protocols,
+					    ddev->tx_headroom,
+					    ddev->tx_tailroom);
+	if (!ddev->nfc_dev) {
+		pr_err("nfc_allocate_device failed\n");
+		goto free_dev;
+	}
+
+	nfc_set_drvdata(ddev->nfc_dev, ddev);
+
+	return ddev;
+
+free_dev:
+	kfree(ddev);
+
+	return NULL;
+}
+EXPORT_SYMBOL(nfc_digital_allocate_device);
+
+void nfc_digital_free_device(struct nfc_digital_dev *ddev)
+{
+	nfc_free_device(ddev->nfc_dev);
+	kfree(ddev);
+}
+EXPORT_SYMBOL(nfc_digital_free_device);
+
+int nfc_digital_register_device(struct nfc_digital_dev *ddev)
+{
+	return nfc_register_device(ddev->nfc_dev);
+}
+EXPORT_SYMBOL(nfc_digital_register_device);
+
+void nfc_digital_unregister_device(struct nfc_digital_dev *ddev)
+{
+	struct digital_cmd *cmd, *n;
+
+	nfc_unregister_device(ddev->nfc_dev);
+
+	mutex_lock(&ddev->poll_lock);
+	ddev->poll_tech_count = 0;
+	mutex_unlock(&ddev->poll_lock);
+
+	cancel_work_sync(&ddev->poll_work);
+	cancel_work_sync(&ddev->cmd_work);
+	cancel_work_sync(&ddev->cmd_complete_work);
+
+	list_for_each_entry_safe(cmd, n, &ddev->cmd_queue, queue) {
+		list_del(&cmd->queue);
+		kfree(cmd->mdaa_params);
+		kfree(cmd);
+	}
+}
+EXPORT_SYMBOL(nfc_digital_unregister_device);
+
+MODULE_LICENSE("GPL");
diff --git a/net/nfc/digital_dep.c b/net/nfc/digital_dep.c
new file mode 100644
index 000000000000..07bbc24fb4c7
--- /dev/null
+++ b/net/nfc/digital_dep.c
@@ -0,0 +1,729 @@
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#define pr_fmt(fmt) "digital: %s: " fmt, __func__
+
+#include "digital.h"
+
+#define DIGITAL_NFC_DEP_FRAME_DIR_OUT 0xD4
+#define DIGITAL_NFC_DEP_FRAME_DIR_IN  0xD5
+
+#define DIGITAL_NFC_DEP_NFCA_SOD_SB   0xF0
+
+#define DIGITAL_CMD_ATR_REQ 0x00
+#define DIGITAL_CMD_ATR_RES 0x01
+#define DIGITAL_CMD_PSL_REQ 0x04
+#define DIGITAL_CMD_PSL_RES 0x05
+#define DIGITAL_CMD_DEP_REQ 0x06
+#define DIGITAL_CMD_DEP_RES 0x07
+
+#define DIGITAL_ATR_REQ_MIN_SIZE 16
+#define DIGITAL_ATR_REQ_MAX_SIZE 64
+
+#define DIGITAL_NFCID3_LEN ((u8)8)
+#define DIGITAL_LR_BITS_PAYLOAD_SIZE_254B 0x30
+#define DIGITAL_GB_BIT	0x02
+
+#define DIGITAL_NFC_DEP_PFB_TYPE(pfb) ((pfb) & 0xE0)
+
+#define DIGITAL_NFC_DEP_PFB_TIMEOUT_BIT 0x10
+
+#define DIGITAL_NFC_DEP_PFB_IS_TIMEOUT(pfb) \
+				((pfb) & DIGITAL_NFC_DEP_PFB_TIMEOUT_BIT)
+#define DIGITAL_NFC_DEP_MI_BIT_SET(pfb)  ((pfb) & 0x10)
+#define DIGITAL_NFC_DEP_NAD_BIT_SET(pfb) ((pfb) & 0x08)
+#define DIGITAL_NFC_DEP_DID_BIT_SET(pfb) ((pfb) & 0x04)
+#define DIGITAL_NFC_DEP_PFB_PNI(pfb)     ((pfb) & 0x03)
+
+#define DIGITAL_NFC_DEP_PFB_I_PDU          0x00
+#define DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU   0x40
+#define DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU 0x80
+
+struct digital_atr_req {
+	u8 dir;
+	u8 cmd;
+	u8 nfcid3[10];
+	u8 did;
+	u8 bs;
+	u8 br;
+	u8 pp;
+	u8 gb[0];
+} __packed;
+
+struct digital_atr_res {
+	u8 dir;
+	u8 cmd;
+	u8 nfcid3[10];
+	u8 did;
+	u8 bs;
+	u8 br;
+	u8 to;
+	u8 pp;
+	u8 gb[0];
+} __packed;
+
+struct digital_psl_req {
+	u8 dir;
+	u8 cmd;
+	u8 did;
+	u8 brs;
+	u8 fsl;
+} __packed;
+
+struct digital_psl_res {
+	u8 dir;
+	u8 cmd;
+	u8 did;
+} __packed;
+
+struct digital_dep_req_res {
+	u8 dir;
+	u8 cmd;
+	u8 pfb;
+} __packed;
+
+static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp);
+
+static void digital_skb_push_dep_sod(struct nfc_digital_dev *ddev,
+				     struct sk_buff *skb)
+{
+	skb_push(skb, sizeof(u8));
+
+	skb->data[0] = skb->len;
+
+	if (ddev->curr_rf_tech == NFC_DIGITAL_RF_TECH_106A)
+		*skb_push(skb, sizeof(u8)) = DIGITAL_NFC_DEP_NFCA_SOD_SB;
+}
+
+static int digital_skb_pull_dep_sod(struct nfc_digital_dev *ddev,
+				    struct sk_buff *skb)
+{
+	u8 size;
+
+	if (skb->len < 2)
+		return -EIO;
+
+	if (ddev->curr_rf_tech == NFC_DIGITAL_RF_TECH_106A)
+		skb_pull(skb, sizeof(u8));
+
+	size = skb->data[0];
+	if (size != skb->len)
+		return -EIO;
+
+	skb_pull(skb, sizeof(u8));
+
+	return 0;
+}
+
+static void digital_in_recv_atr_res(struct nfc_digital_dev *ddev, void *arg,
+				 struct sk_buff *resp)
+{
+	struct nfc_target *target = arg;
+	struct digital_atr_res *atr_res;
+	u8 gb_len;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto exit;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	if (resp->len < sizeof(struct digital_atr_res)) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	gb_len = resp->len - sizeof(struct digital_atr_res);
+
+	atr_res = (struct digital_atr_res *)resp->data;
+
+	rc = nfc_set_remote_general_bytes(ddev->nfc_dev, atr_res->gb, gb_len);
+	if (rc)
+		goto exit;
+
+	rc = nfc_dep_link_is_up(ddev->nfc_dev, target->idx, NFC_COMM_ACTIVE,
+				NFC_RF_INITIATOR);
+
+	ddev->curr_nfc_dep_pni = 0;
+
+exit:
+	dev_kfree_skb(resp);
+
+	if (rc)
+		ddev->curr_protocol = 0;
+}
+
+int digital_in_send_atr_req(struct nfc_digital_dev *ddev,
+			    struct nfc_target *target, __u8 comm_mode, __u8 *gb,
+			    size_t gb_len)
+{
+	struct sk_buff *skb;
+	struct digital_atr_req *atr_req;
+	uint size;
+
+	size = DIGITAL_ATR_REQ_MIN_SIZE + gb_len;
+
+	if (size > DIGITAL_ATR_REQ_MAX_SIZE) {
+		PROTOCOL_ERR("14.6.1.1");
+		return -EINVAL;
+	}
+
+	skb = digital_skb_alloc(ddev, size);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_atr_req));
+
+	atr_req = (struct digital_atr_req *)skb->data;
+	memset(atr_req, 0, sizeof(struct digital_atr_req));
+
+	atr_req->dir = DIGITAL_NFC_DEP_FRAME_DIR_OUT;
+	atr_req->cmd = DIGITAL_CMD_ATR_REQ;
+	if (target->nfcid2_len)
+		memcpy(atr_req->nfcid3, target->nfcid2,
+		       max(target->nfcid2_len, DIGITAL_NFCID3_LEN));
+	else
+		get_random_bytes(atr_req->nfcid3, DIGITAL_NFCID3_LEN);
+
+	atr_req->did = 0;
+	atr_req->bs = 0;
+	atr_req->br = 0;
+
+	atr_req->pp = DIGITAL_LR_BITS_PAYLOAD_SIZE_254B;
+
+	if (gb_len) {
+		atr_req->pp |= DIGITAL_GB_BIT;
+		memcpy(skb_put(skb, gb_len), gb, gb_len);
+	}
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	digital_in_send_cmd(ddev, skb, 500, digital_in_recv_atr_res, target);
+
+	return 0;
+}
+
+static int digital_in_send_rtox(struct nfc_digital_dev *ddev,
+				struct digital_data_exch *data_exch, u8 rtox)
+{
+	struct digital_dep_req_res *dep_req;
+	struct sk_buff *skb;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, 1);
+	if (!skb)
+		return -ENOMEM;
+
+	*skb_put(skb, 1) = rtox;
+
+	skb_push(skb, sizeof(struct digital_dep_req_res));
+
+	dep_req = (struct digital_dep_req_res *)skb->data;
+
+	dep_req->dir = DIGITAL_NFC_DEP_FRAME_DIR_OUT;
+	dep_req->cmd = DIGITAL_CMD_DEP_REQ;
+	dep_req->pfb = DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU |
+		       DIGITAL_NFC_DEP_PFB_TIMEOUT_BIT;
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	rc = digital_in_send_cmd(ddev, skb, 1500, digital_in_recv_dep_res,
+				 data_exch);
+
+	return rc;
+}
+
+static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	struct digital_data_exch *data_exch = arg;
+	struct digital_dep_req_res *dep_res;
+	u8 pfb;
+	uint size;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto error;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	dep_res = (struct digital_dep_req_res *)resp->data;
+
+	if (resp->len < sizeof(struct digital_dep_req_res) ||
+	    dep_res->dir != DIGITAL_NFC_DEP_FRAME_DIR_IN ||
+	    dep_res->cmd != DIGITAL_CMD_DEP_RES) {
+		rc = -EIO;
+		goto error;
+	}
+
+	pfb = dep_res->pfb;
+
+	switch (DIGITAL_NFC_DEP_PFB_TYPE(pfb)) {
+	case DIGITAL_NFC_DEP_PFB_I_PDU:
+		if (DIGITAL_NFC_DEP_PFB_PNI(pfb) != ddev->curr_nfc_dep_pni) {
+			PROTOCOL_ERR("14.12.3.3");
+			rc = -EIO;
+			goto error;
+		}
+
+		ddev->curr_nfc_dep_pni =
+			DIGITAL_NFC_DEP_PFB_PNI(ddev->curr_nfc_dep_pni + 1);
+		rc = 0;
+		break;
+
+	case DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU:
+		pr_err("Received a ACK/NACK PDU\n");
+		rc = -EIO;
+		goto error;
+
+	case DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU:
+		if (!DIGITAL_NFC_DEP_PFB_IS_TIMEOUT(pfb)) {
+			rc = -EINVAL;
+			goto error;
+		}
+
+		rc = digital_in_send_rtox(ddev, data_exch, resp->data[3]);
+		if (rc)
+			goto error;
+
+		kfree_skb(resp);
+		return;
+	}
+
+	if (DIGITAL_NFC_DEP_MI_BIT_SET(pfb)) {
+		pr_err("MI bit set. Chained PDU not supported\n");
+		rc = -EIO;
+		goto error;
+	}
+
+	size = sizeof(struct digital_dep_req_res);
+
+	if (DIGITAL_NFC_DEP_DID_BIT_SET(pfb))
+		size++;
+
+	if (size > resp->len) {
+		rc = -EIO;
+		goto error;
+	}
+
+	skb_pull(resp, size);
+
+exit:
+	data_exch->cb(data_exch->cb_context, resp, rc);
+
+error:
+	kfree(data_exch);
+
+	if (rc)
+		kfree_skb(resp);
+}
+
+int digital_in_send_dep_req(struct nfc_digital_dev *ddev,
+			    struct nfc_target *target, struct sk_buff *skb,
+			    struct digital_data_exch *data_exch)
+{
+	struct digital_dep_req_res *dep_req;
+
+	skb_push(skb, sizeof(struct digital_dep_req_res));
+
+	dep_req = (struct digital_dep_req_res *)skb->data;
+	dep_req->dir = DIGITAL_NFC_DEP_FRAME_DIR_OUT;
+	dep_req->cmd = DIGITAL_CMD_DEP_REQ;
+	dep_req->pfb = ddev->curr_nfc_dep_pni;
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	return digital_in_send_cmd(ddev, skb, 1500, digital_in_recv_dep_res,
+				   data_exch);
+}
+
+static void digital_tg_recv_dep_req(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	int rc;
+	struct digital_dep_req_res *dep_req;
+	size_t size;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto exit;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	size = sizeof(struct digital_dep_req_res);
+	dep_req = (struct digital_dep_req_res *)resp->data;
+
+	if (resp->len < size || dep_req->dir != DIGITAL_NFC_DEP_FRAME_DIR_OUT ||
+	    dep_req->cmd != DIGITAL_CMD_DEP_REQ) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	if (DIGITAL_NFC_DEP_DID_BIT_SET(dep_req->pfb))
+		size++;
+
+	if (resp->len < size) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	switch (DIGITAL_NFC_DEP_PFB_TYPE(dep_req->pfb)) {
+	case DIGITAL_NFC_DEP_PFB_I_PDU:
+		pr_debug("DIGITAL_NFC_DEP_PFB_I_PDU\n");
+		ddev->curr_nfc_dep_pni = DIGITAL_NFC_DEP_PFB_PNI(dep_req->pfb);
+		break;
+	case DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU:
+		pr_err("Received a ACK/NACK PDU\n");
+		rc = -EINVAL;
+		goto exit;
+		break;
+	case DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU:
+		pr_err("Received a SUPERVISOR PDU\n");
+		rc = -EINVAL;
+		goto exit;
+		break;
+	}
+
+	skb_pull(resp, size);
+
+	rc = nfc_tm_data_received(ddev->nfc_dev, resp);
+
+exit:
+	if (rc)
+		kfree_skb(resp);
+}
+
+int digital_tg_send_dep_res(struct nfc_digital_dev *ddev, struct sk_buff *skb)
+{
+	struct digital_dep_req_res *dep_res;
+
+	skb_push(skb, sizeof(struct digital_dep_req_res));
+	dep_res = (struct digital_dep_req_res *)skb->data;
+
+	dep_res->dir = DIGITAL_NFC_DEP_FRAME_DIR_IN;
+	dep_res->cmd = DIGITAL_CMD_DEP_RES;
+	dep_res->pfb = ddev->curr_nfc_dep_pni;
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	return digital_tg_send_cmd(ddev, skb, 1500, digital_tg_recv_dep_req,
+				   NULL);
+}
+
+static void digital_tg_send_psl_res_complete(struct nfc_digital_dev *ddev,
+					     void *arg, struct sk_buff *resp)
+{
+	u8 rf_tech = PTR_ERR(arg);
+
+	if (IS_ERR(resp))
+		return;
+
+	digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);
+
+	digital_tg_listen(ddev, 1500, digital_tg_recv_dep_req, NULL);
+
+	dev_kfree_skb(resp);
+}
+
+static int digital_tg_send_psl_res(struct nfc_digital_dev *ddev, u8 did,
+				   u8 rf_tech)
+{
+	struct digital_psl_res *psl_res;
+	struct sk_buff *skb;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, sizeof(struct digital_psl_res));
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_psl_res));
+
+	psl_res = (struct digital_psl_res *)skb->data;
+
+	psl_res->dir = DIGITAL_NFC_DEP_FRAME_DIR_IN;
+	psl_res->cmd = DIGITAL_CMD_PSL_RES;
+	psl_res->did = did;
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	rc = digital_tg_send_cmd(ddev, skb, 0, digital_tg_send_psl_res_complete,
+				 ERR_PTR(rf_tech));
+
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+static void digital_tg_recv_psl_req(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	int rc;
+	struct digital_psl_req *psl_req;
+	u8 rf_tech;
+	u8 dsi;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto exit;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	psl_req = (struct digital_psl_req *)resp->data;
+
+	if (resp->len != sizeof(struct digital_psl_req) ||
+	    psl_req->dir != DIGITAL_NFC_DEP_FRAME_DIR_OUT ||
+	    psl_req->cmd != DIGITAL_CMD_PSL_REQ) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	dsi = (psl_req->brs >> 3) & 0x07;
+	switch (dsi) {
+	case 0:
+		rf_tech = NFC_DIGITAL_RF_TECH_106A;
+		break;
+	case 1:
+		rf_tech = NFC_DIGITAL_RF_TECH_212F;
+		break;
+	case 2:
+		rf_tech = NFC_DIGITAL_RF_TECH_424F;
+		break;
+	default:
+		pr_err("Unsuported dsi value %d\n", dsi);
+		goto exit;
+	}
+
+	rc = digital_tg_send_psl_res(ddev, psl_req->did, rf_tech);
+
+exit:
+	kfree_skb(resp);
+}
+
+static void digital_tg_send_atr_res_complete(struct nfc_digital_dev *ddev,
+					     void *arg, struct sk_buff *resp)
+{
+	int offset;
+
+	if (IS_ERR(resp)) {
+		digital_poll_next_tech(ddev);
+		return;
+	}
+
+	offset = 2;
+	if (resp->data[0] == DIGITAL_NFC_DEP_NFCA_SOD_SB)
+		offset++;
+
+	if (resp->data[offset] == DIGITAL_CMD_PSL_REQ)
+		digital_tg_recv_psl_req(ddev, arg, resp);
+	else
+		digital_tg_recv_dep_req(ddev, arg, resp);
+}
+
+static int digital_tg_send_atr_res(struct nfc_digital_dev *ddev,
+				   struct digital_atr_req *atr_req)
+{
+	struct digital_atr_res *atr_res;
+	struct sk_buff *skb;
+	u8 *gb;
+	size_t gb_len;
+	int rc;
+
+	gb = nfc_get_local_general_bytes(ddev->nfc_dev, &gb_len);
+	if (!gb)
+		gb_len = 0;
+
+	skb = digital_skb_alloc(ddev, sizeof(struct digital_atr_res) + gb_len);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_atr_res));
+	atr_res = (struct digital_atr_res *)skb->data;
+
+	memset(atr_res, 0, sizeof(struct digital_atr_res));
+
+	atr_res->dir = DIGITAL_NFC_DEP_FRAME_DIR_IN;
+	atr_res->cmd = DIGITAL_CMD_ATR_RES;
+	memcpy(atr_res->nfcid3, atr_req->nfcid3, sizeof(atr_req->nfcid3));
+	atr_res->to = 8;
+	atr_res->pp = DIGITAL_LR_BITS_PAYLOAD_SIZE_254B;
+	if (gb_len) {
+		skb_put(skb, gb_len);
+
+		atr_res->pp |= DIGITAL_GB_BIT;
+		memcpy(atr_res->gb, gb, gb_len);
+	}
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	rc = digital_tg_send_cmd(ddev, skb, 999,
+				 digital_tg_send_atr_res_complete, NULL);
+	if (rc) {
+		kfree_skb(skb);
+		return rc;
+	}
+
+	return rc;
+}
+
+void digital_tg_recv_atr_req(struct nfc_digital_dev *ddev, void *arg,
+			     struct sk_buff *resp)
+{
+	int rc;
+	struct digital_atr_req *atr_req;
+	size_t gb_len, min_size;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (!resp->len) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	if (resp->data[0] == DIGITAL_NFC_DEP_NFCA_SOD_SB) {
+		min_size = DIGITAL_ATR_REQ_MIN_SIZE + 2;
+
+		ddev->curr_rf_tech = NFC_DIGITAL_RF_TECH_106A;
+		ddev->skb_add_crc = digital_skb_add_crc_a;
+		ddev->skb_check_crc = digital_skb_check_crc_a;
+	} else {
+		min_size = DIGITAL_ATR_REQ_MIN_SIZE + 1;
+
+		ddev->curr_rf_tech = NFC_DIGITAL_RF_TECH_212F;
+		ddev->skb_add_crc = digital_skb_add_crc_f;
+		ddev->skb_check_crc = digital_skb_check_crc_f;
+	}
+
+	if (resp->len < min_size) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	if (DIGITAL_DRV_CAPS_TG_CRC(ddev)) {
+		ddev->skb_add_crc = digital_skb_add_crc_none;
+		ddev->skb_check_crc = digital_skb_check_crc_none;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto exit;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	atr_req = (struct digital_atr_req *)resp->data;
+
+	if (atr_req->dir != DIGITAL_NFC_DEP_FRAME_DIR_OUT ||
+	    atr_req->cmd != DIGITAL_CMD_ATR_REQ) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED);
+	if (rc)
+		goto exit;
+
+	rc = digital_tg_send_atr_res(ddev, atr_req);
+	if (rc)
+		goto exit;
+
+	gb_len = resp->len - sizeof(struct digital_atr_req);
+	rc = nfc_tm_activated(ddev->nfc_dev, NFC_PROTO_NFC_DEP_MASK,
+			      NFC_COMM_PASSIVE, atr_req->gb, gb_len);
+	if (rc)
+		goto exit;
+
+	ddev->poll_tech_count = 0;
+
+	rc = 0;
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
new file mode 100644
index 000000000000..251c8c753ebe
--- /dev/null
+++ b/net/nfc/digital_technology.c
@@ -0,0 +1,770 @@
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#define pr_fmt(fmt) "digital: %s: " fmt, __func__
+
+#include "digital.h"
+
+#define DIGITAL_CMD_SENS_REQ    0x26
+#define DIGITAL_CMD_ALL_REQ     0x52
+#define DIGITAL_CMD_SEL_REQ_CL1 0x93
+#define DIGITAL_CMD_SEL_REQ_CL2 0x95
+#define DIGITAL_CMD_SEL_REQ_CL3 0x97
+
+#define DIGITAL_SDD_REQ_SEL_PAR 0x20
+
+#define DIGITAL_SDD_RES_CT  0x88
+#define DIGITAL_SDD_RES_LEN 5
+
+#define DIGITAL_SEL_RES_NFCID1_COMPLETE(sel_res) (!((sel_res) & 0x04))
+#define DIGITAL_SEL_RES_IS_T2T(sel_res) (!((sel_res) & 0x60))
+#define DIGITAL_SEL_RES_IS_NFC_DEP(sel_res) ((sel_res) & 0x40)
+
+#define DIGITAL_SENS_RES_IS_T1T(sens_res) (((sens_res) & 0x0C00) == 0x0C00)
+#define DIGITAL_SENS_RES_IS_VALID(sens_res) \
+	((!((sens_res) & 0x001F) && (((sens_res) & 0x0C00) == 0x0C00)) || \
+	(((sens_res) & 0x001F) && ((sens_res) & 0x0C00) != 0x0C00))
+
+#define DIGITAL_MIFARE_READ_RES_LEN 16
+#define DIGITAL_MIFARE_ACK_RES	0x0A
+
+#define DIGITAL_CMD_SENSF_REQ	0x00
+#define DIGITAL_CMD_SENSF_RES	0x01
+
+#define DIGITAL_SENSF_RES_MIN_LENGTH 17
+#define DIGITAL_SENSF_RES_RD_AP_B1   0x00
+#define DIGITAL_SENSF_RES_RD_AP_B2   0x8F
+
+#define DIGITAL_SENSF_REQ_RC_NONE 0
+#define DIGITAL_SENSF_REQ_RC_SC   1
+#define DIGITAL_SENSF_REQ_RC_AP   2
+
+struct digital_sdd_res {
+	u8 nfcid1[4];
+	u8 bcc;
+} __packed;
+
+struct digital_sel_req {
+	u8 sel_cmd;
+	u8 b2;
+	u8 nfcid1[4];
+	u8 bcc;
+} __packed;
+
+struct digital_sensf_req {
+	u8 cmd;
+	u8 sc1;
+	u8 sc2;
+	u8 rc;
+	u8 tsn;
+} __packed;
+
+struct digital_sensf_res {
+	u8 cmd;
+	u8 nfcid2[8];
+	u8 pad0[2];
+	u8 pad1[3];
+	u8 mrti_check;
+	u8 mrti_update;
+	u8 pad2;
+	u8 rd[2];
+} __packed;
+
+static int digital_in_send_sdd_req(struct nfc_digital_dev *ddev,
+				   struct nfc_target *target);
+
+static void digital_in_recv_sel_res(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	struct nfc_target *target = arg;
+	int rc;
+	u8 sel_res;
+	u8 nfc_proto;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (!DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
+		rc = digital_skb_check_crc_a(resp);
+		if (rc) {
+			PROTOCOL_ERR("4.4.1.3");
+			goto exit;
+		}
+	}
+
+	if (!resp->len) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	sel_res = resp->data[0];
+
+	if (!DIGITAL_SEL_RES_NFCID1_COMPLETE(sel_res)) {
+		rc = digital_in_send_sdd_req(ddev, target);
+		if (rc)
+			goto exit;
+
+		goto exit_free_skb;
+	}
+
+	if (DIGITAL_SEL_RES_IS_T2T(sel_res)) {
+		nfc_proto = NFC_PROTO_MIFARE;
+	} else if (DIGITAL_SEL_RES_IS_NFC_DEP(sel_res)) {
+		nfc_proto = NFC_PROTO_NFC_DEP;
+	} else {
+		rc = -EOPNOTSUPP;
+		goto exit;
+	}
+
+	target->sel_res = sel_res;
+
+	rc = digital_target_found(ddev, target, nfc_proto);
+
+exit:
+	kfree(target);
+
+exit_free_skb:
+	dev_kfree_skb(resp);
+
+	if (rc)
+		digital_poll_next_tech(ddev);
+}
+
+static int digital_in_send_sel_req(struct nfc_digital_dev *ddev,
+				   struct nfc_target *target,
+				   struct digital_sdd_res *sdd_res)
+{
+	struct sk_buff *skb;
+	struct digital_sel_req *sel_req;
+	u8 sel_cmd;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, sizeof(struct digital_sel_req));
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_sel_req));
+	sel_req = (struct digital_sel_req *)skb->data;
+
+	if (target->nfcid1_len <= 4)
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL1;
+	else if (target->nfcid1_len < 10)
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL2;
+	else
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL3;
+
+	sel_req->sel_cmd = sel_cmd;
+	sel_req->b2 = 0x70;
+	memcpy(sel_req->nfcid1, sdd_res->nfcid1, 4);
+	sel_req->bcc = sdd_res->bcc;
+
+	if (DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
+		rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A);
+		if (rc)
+			goto exit;
+	} else {
+		digital_skb_add_crc_a(skb);
+	}
+
+	rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sel_res,
+				 target);
+exit:
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+static void digital_in_recv_sdd_res(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	struct nfc_target *target = arg;
+	struct digital_sdd_res *sdd_res;
+	int rc;
+	u8 offset, size;
+	u8 i, bcc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (resp->len < DIGITAL_SDD_RES_LEN) {
+		PROTOCOL_ERR("4.7.2.8");
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	sdd_res = (struct digital_sdd_res *)resp->data;
+
+	for (i = 0, bcc = 0; i < 4; i++)
+		bcc ^= sdd_res->nfcid1[i];
+
+	if (bcc != sdd_res->bcc) {
+		PROTOCOL_ERR("4.7.2.6");
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	if (sdd_res->nfcid1[0] == DIGITAL_SDD_RES_CT) {
+		offset = 1;
+		size = 3;
+	} else {
+		offset = 0;
+		size = 4;
+	}
+
+	memcpy(target->nfcid1 + target->nfcid1_len, sdd_res->nfcid1 + offset,
+	       size);
+	target->nfcid1_len += size;
+
+	rc = digital_in_send_sel_req(ddev, target, sdd_res);
+
+exit:
+	dev_kfree_skb(resp);
+
+	if (rc) {
+		kfree(target);
+		digital_poll_next_tech(ddev);
+	}
+}
+
+static int digital_in_send_sdd_req(struct nfc_digital_dev *ddev,
+				   struct nfc_target *target)
+{
+	int rc;
+	struct sk_buff *skb;
+	u8 sel_cmd;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCA_STANDARD);
+	if (rc)
+		return rc;
+
+	skb = digital_skb_alloc(ddev, 2);
+	if (!skb)
+		return -ENOMEM;
+
+	if (target->nfcid1_len == 0)
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL1;
+	else if (target->nfcid1_len == 3)
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL2;
+	else
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL3;
+
+	*skb_put(skb, sizeof(u8)) = sel_cmd;
+	*skb_put(skb, sizeof(u8)) = DIGITAL_SDD_REQ_SEL_PAR;
+
+	return digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sdd_res,
+				   target);
+}
+
+static void digital_in_recv_sens_res(struct nfc_digital_dev *ddev, void *arg,
+				     struct sk_buff *resp)
+{
+	struct nfc_target *target = NULL;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (resp->len < sizeof(u16)) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	target = kzalloc(sizeof(struct nfc_target), GFP_KERNEL);
+	if (!target) {
+		rc = -ENOMEM;
+		goto exit;
+	}
+
+	target->sens_res = __le16_to_cpu(*(__le16 *)resp->data);
+
+	if (!DIGITAL_SENS_RES_IS_VALID(target->sens_res)) {
+		PROTOCOL_ERR("4.6.3.3");
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	if (DIGITAL_SENS_RES_IS_T1T(target->sens_res))
+		rc = digital_target_found(ddev, target, NFC_PROTO_JEWEL);
+	else
+		rc = digital_in_send_sdd_req(ddev, target);
+
+exit:
+	dev_kfree_skb(resp);
+
+	if (rc) {
+		kfree(target);
+		digital_poll_next_tech(ddev);
+	}
+}
+
+int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	struct sk_buff *skb;
+	int rc;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH,
+				     NFC_DIGITAL_RF_TECH_106A);
+	if (rc)
+		return rc;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCA_SHORT);
+	if (rc)
+		return rc;
+
+	skb = digital_skb_alloc(ddev, 1);
+	if (!skb)
+		return -ENOMEM;
+
+	*skb_put(skb, sizeof(u8)) = DIGITAL_CMD_SENS_REQ;
+
+	rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sens_res, NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+int digital_in_recv_mifare_res(struct sk_buff *resp)
+{
+	/* Successful READ command response is 16 data bytes + 2 CRC bytes long.
+	 * Since the driver can't differentiate a ACK/NACK response from a valid
+	 * READ response, the CRC calculation must be handled at digital level
+	 * even if the driver supports it for this technology.
+	 */
+	if (resp->len == DIGITAL_MIFARE_READ_RES_LEN + DIGITAL_CRC_LEN) {
+		if (digital_skb_check_crc_a(resp)) {
+			PROTOCOL_ERR("9.4.1.2");
+			return -EIO;
+		}
+
+		return 0;
+	}
+
+	/* ACK response (i.e. successful WRITE). */
+	if (resp->len == 1 && resp->data[0] == DIGITAL_MIFARE_ACK_RES) {
+		resp->data[0] = 0;
+		return 0;
+	}
+
+	/* NACK and any other responses are treated as error. */
+	return -EIO;
+}
+
+static void digital_in_recv_sensf_res(struct nfc_digital_dev *ddev, void *arg,
+				   struct sk_buff *resp)
+{
+	int rc;
+	u8 proto;
+	struct nfc_target target;
+	struct digital_sensf_res *sensf_res;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (resp->len < DIGITAL_SENSF_RES_MIN_LENGTH) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	if (!DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
+		rc = digital_skb_check_crc_f(resp);
+		if (rc) {
+			PROTOCOL_ERR("6.4.1.8");
+			goto exit;
+		}
+	}
+
+	skb_pull(resp, 1);
+
+	memset(&target, 0, sizeof(struct nfc_target));
+
+	sensf_res = (struct digital_sensf_res *)resp->data;
+
+	memcpy(target.sensf_res, sensf_res, resp->len);
+	target.sensf_res_len = resp->len;
+
+	memcpy(target.nfcid2, sensf_res->nfcid2, NFC_NFCID2_MAXSIZE);
+	target.nfcid2_len = NFC_NFCID2_MAXSIZE;
+
+	if (target.nfcid2[0] == DIGITAL_SENSF_NFCID2_NFC_DEP_B1 &&
+	    target.nfcid2[1] == DIGITAL_SENSF_NFCID2_NFC_DEP_B2)
+		proto = NFC_PROTO_NFC_DEP;
+	else
+		proto = NFC_PROTO_FELICA;
+
+	rc = digital_target_found(ddev, &target, proto);
+
+exit:
+	dev_kfree_skb(resp);
+
+	if (rc)
+		digital_poll_next_tech(ddev);
+}
+
+int digital_in_send_sensf_req(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	struct digital_sensf_req *sensf_req;
+	struct sk_buff *skb;
+	int rc;
+	u8 size;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);
+	if (rc)
+		return rc;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCF);
+	if (rc)
+		return rc;
+
+	size = sizeof(struct digital_sensf_req);
+
+	skb = digital_skb_alloc(ddev, size);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, size);
+
+	sensf_req = (struct digital_sensf_req *)skb->data;
+	sensf_req->cmd = DIGITAL_CMD_SENSF_REQ;
+	sensf_req->sc1 = 0xFF;
+	sensf_req->sc2 = 0xFF;
+	sensf_req->rc = 0;
+	sensf_req->tsn = 0;
+
+	*skb_push(skb, 1) = size + 1;
+
+	if (!DIGITAL_DRV_CAPS_IN_CRC(ddev))
+		digital_skb_add_crc_f(skb);
+
+	rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sensf_res,
+				 NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+static int digital_tg_send_sel_res(struct nfc_digital_dev *ddev)
+{
+	struct sk_buff *skb;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, 1);
+	if (!skb)
+		return -ENOMEM;
+
+	*skb_put(skb, 1) = DIGITAL_SEL_RES_NFC_DEP;
+
+	if (!DIGITAL_DRV_CAPS_TG_CRC(ddev))
+		digital_skb_add_crc_a(skb);
+
+	rc = digital_tg_send_cmd(ddev, skb, 300, digital_tg_recv_atr_req,
+				 NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+static void digital_tg_recv_sel_req(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (!DIGITAL_DRV_CAPS_TG_CRC(ddev)) {
+		rc = digital_skb_check_crc_a(resp);
+		if (rc) {
+			PROTOCOL_ERR("4.4.1.3");
+			goto exit;
+		}
+	}
+
+	/* Silently ignore SEL_REQ content and send a SEL_RES for NFC-DEP */
+
+	rc = digital_tg_send_sel_res(ddev);
+
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
+
+static int digital_tg_send_sdd_res(struct nfc_digital_dev *ddev)
+{
+	struct sk_buff *skb;
+	struct digital_sdd_res *sdd_res;
+	int rc, i;
+
+	skb = digital_skb_alloc(ddev, sizeof(struct digital_sdd_res));
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_sdd_res));
+	sdd_res = (struct digital_sdd_res *)skb->data;
+
+	sdd_res->nfcid1[0] = 0x08;
+	get_random_bytes(sdd_res->nfcid1 + 1, 3);
+
+	sdd_res->bcc = 0;
+	for (i = 0; i < 4; i++)
+		sdd_res->bcc ^= sdd_res->nfcid1[i];
+
+	rc = digital_tg_send_cmd(ddev, skb, 300, digital_tg_recv_sel_req,
+				 NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+static void digital_tg_recv_sdd_req(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	u8 *sdd_req;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	sdd_req = resp->data;
+
+	if (resp->len < 2 || sdd_req[0] != DIGITAL_CMD_SEL_REQ_CL1 ||
+	    sdd_req[1] != DIGITAL_SDD_REQ_SEL_PAR) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	rc = digital_tg_send_sdd_res(ddev);
+
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
+
+static int digital_tg_send_sens_res(struct nfc_digital_dev *ddev)
+{
+	struct sk_buff *skb;
+	u8 *sens_res;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, 2);
+	if (!skb)
+		return -ENOMEM;
+
+	sens_res = skb_put(skb, 2);
+
+	sens_res[0] = (DIGITAL_SENS_RES_NFC_DEP >> 8) & 0xFF;
+	sens_res[1] = DIGITAL_SENS_RES_NFC_DEP & 0xFF;
+
+	rc = digital_tg_send_cmd(ddev, skb, 300, digital_tg_recv_sdd_req,
+				 NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+void digital_tg_recv_sens_req(struct nfc_digital_dev *ddev, void *arg,
+			      struct sk_buff *resp)
+{
+	u8 sens_req;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	sens_req = resp->data[0];
+
+	if (!resp->len || (sens_req != DIGITAL_CMD_SENS_REQ &&
+	    sens_req != DIGITAL_CMD_ALL_REQ)) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	rc = digital_tg_send_sens_res(ddev);
+
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
+
+static int digital_tg_send_sensf_res(struct nfc_digital_dev *ddev,
+			      struct digital_sensf_req *sensf_req)
+{
+	struct sk_buff *skb;
+	u8 size;
+	int rc;
+	struct digital_sensf_res *sensf_res;
+
+	size = sizeof(struct digital_sensf_res);
+
+	if (sensf_req->rc != DIGITAL_SENSF_REQ_RC_NONE)
+		size -= sizeof(sensf_res->rd);
+
+	skb = digital_skb_alloc(ddev, size);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, size);
+
+	sensf_res = (struct digital_sensf_res *)skb->data;
+
+	memset(sensf_res, 0, size);
+
+	sensf_res->cmd = DIGITAL_CMD_SENSF_RES;
+	sensf_res->nfcid2[0] = DIGITAL_SENSF_NFCID2_NFC_DEP_B1;
+	sensf_res->nfcid2[1] = DIGITAL_SENSF_NFCID2_NFC_DEP_B2;
+	get_random_bytes(&sensf_res->nfcid2[2], 6);
+
+	switch (sensf_req->rc) {
+	case DIGITAL_SENSF_REQ_RC_SC:
+		sensf_res->rd[0] = sensf_req->sc1;
+		sensf_res->rd[1] = sensf_req->sc2;
+		break;
+	case DIGITAL_SENSF_REQ_RC_AP:
+		sensf_res->rd[0] = DIGITAL_SENSF_RES_RD_AP_B1;
+		sensf_res->rd[1] = DIGITAL_SENSF_RES_RD_AP_B2;
+		break;
+	}
+
+	*skb_push(skb, sizeof(u8)) = size + 1;
+
+	if (!DIGITAL_DRV_CAPS_TG_CRC(ddev))
+		digital_skb_add_crc_f(skb);
+
+	rc = digital_tg_send_cmd(ddev, skb, 300,
+				 digital_tg_recv_atr_req, NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+void digital_tg_recv_sensf_req(struct nfc_digital_dev *ddev, void *arg,
+			       struct sk_buff *resp)
+{
+	struct digital_sensf_req *sensf_req;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (!DIGITAL_DRV_CAPS_TG_CRC(ddev)) {
+		rc = digital_skb_check_crc_f(resp);
+		if (rc) {
+			PROTOCOL_ERR("6.4.1.8");
+			goto exit;
+		}
+	}
+
+	if (resp->len != sizeof(struct digital_sensf_req) + 1) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	skb_pull(resp, 1);
+	sensf_req = (struct digital_sensf_req *)resp->data;
+
+	if (sensf_req->cmd != DIGITAL_CMD_SENSF_REQ) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	rc = digital_tg_send_sensf_res(ddev, sensf_req);
+
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
+
+int digital_tg_listen_nfca(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	int rc;
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);
+	if (rc)
+		return rc;
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCA_NFC_DEP);
+	if (rc)
+		return rc;
+
+	return digital_tg_listen(ddev, 300, digital_tg_recv_sens_req, NULL);
+}
+
+int digital_tg_listen_nfcf(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	int rc;
+	u8 *nfcid2;
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);
+	if (rc)
+		return rc;
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCF_NFC_DEP);
+	if (rc)
+		return rc;
+
+	nfcid2 = kzalloc(NFC_NFCID2_MAXSIZE, GFP_KERNEL);
+	if (!nfcid2)
+		return -ENOMEM;
+
+	nfcid2[0] = DIGITAL_SENSF_NFCID2_NFC_DEP_B1;
+	nfcid2[1] = DIGITAL_SENSF_NFCID2_NFC_DEP_B2;
+	get_random_bytes(nfcid2 + 2, NFC_NFCID2_MAXSIZE - 2);
+
+	return digital_tg_listen(ddev, 300, digital_tg_recv_sensf_req, nfcid2);
+}
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index c7cf37ba7298..f1d426f10cce 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -21,11 +21,8 @@
 #include <linux/export.h>
 #include <linux/spi/spi.h>
 #include <linux/crc-ccitt.h>
-#include <linux/nfc.h>
 #include <net/nfc/nci_core.h>
 
-#define NCI_SPI_HDR_LEN			4
-#define NCI_SPI_CRC_LEN			2
 #define NCI_SPI_ACK_SHIFT		6
 #define NCI_SPI_MSB_PAYLOAD_MASK	0x3F
 
@@ -41,54 +38,48 @@
 
 #define CRC_INIT		0xFFFF
 
-static int nci_spi_open(struct nci_dev *nci_dev)
-{
-	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
-
-	return ndev->ops->open(ndev);
-}
-
-static int nci_spi_close(struct nci_dev *nci_dev)
-{
-	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
-
-	return ndev->ops->close(ndev);
-}
-
-static int __nci_spi_send(struct nci_spi_dev *ndev, struct sk_buff *skb)
+static int __nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb,
+			  int cs_change)
 {
 	struct spi_message m;
 	struct spi_transfer t;
 
-	t.tx_buf = skb->data;
-	t.len = skb->len;
-	t.cs_change = 0;
-	t.delay_usecs = ndev->xfer_udelay;
+	memset(&t, 0, sizeof(struct spi_transfer));
+	/* a NULL skb means we just want the SPI chip select line to raise */
+	if (skb) {
+		t.tx_buf = skb->data;
+		t.len = skb->len;
+	} else {
+		/* still set tx_buf non NULL to make the driver happy */
+		t.tx_buf = &t;
+		t.len = 0;
+	}
+	t.cs_change = cs_change;
+	t.delay_usecs = nspi->xfer_udelay;
 
 	spi_message_init(&m);
 	spi_message_add_tail(&t, &m);
 
-	return spi_sync(ndev->spi, &m);
+	return spi_sync(nspi->spi, &m);
 }
 
-static int nci_spi_send(struct nci_dev *nci_dev, struct sk_buff *skb)
+int nci_spi_send(struct nci_spi *nspi,
+		 struct completion *write_handshake_completion,
+		 struct sk_buff *skb)
 {
-	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
 	unsigned int payload_len = skb->len;
 	unsigned char *hdr;
 	int ret;
 	long completion_rc;
 
-	ndev->ops->deassert_int(ndev);
-
 	/* add the NCI SPI header to the start of the buffer */
 	hdr = skb_push(skb, NCI_SPI_HDR_LEN);
 	hdr[0] = NCI_SPI_DIRECT_WRITE;
-	hdr[1] = ndev->acknowledge_mode;
+	hdr[1] = nspi->acknowledge_mode;
 	hdr[2] = payload_len >> 8;
 	hdr[3] = payload_len & 0xFF;
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		u16 crc;
 
 		crc = crc_ccitt(CRC_INIT, skb->data, skb->len);
@@ -96,123 +87,77 @@ static int nci_spi_send(struct nci_dev *nci_dev, struct sk_buff *skb)
 		*skb_put(skb, 1) = crc & 0xFF;
 	}
 
-	ret = __nci_spi_send(ndev, skb);
+	if (write_handshake_completion)	{
+		/* Trick SPI driver to raise chip select */
+		ret = __nci_spi_send(nspi, NULL, 1);
+		if (ret)
+			goto done;
 
-	kfree_skb(skb);
-	ndev->ops->assert_int(ndev);
+		/* wait for NFC chip hardware handshake to complete */
+		if (wait_for_completion_timeout(write_handshake_completion,
+						msecs_to_jiffies(1000)) == 0) {
+			ret = -ETIME;
+			goto done;
+		}
+	}
 
-	if (ret != 0 || ndev->acknowledge_mode == NCI_SPI_CRC_DISABLED)
+	ret = __nci_spi_send(nspi, skb, 0);
+	if (ret != 0 || nspi->acknowledge_mode == NCI_SPI_CRC_DISABLED)
 		goto done;
 
-	init_completion(&ndev->req_completion);
-	completion_rc =
-		wait_for_completion_interruptible_timeout(&ndev->req_completion,
-							  NCI_SPI_SEND_TIMEOUT);
+	init_completion(&nspi->req_completion);
+	completion_rc =	wait_for_completion_interruptible_timeout(
+							&nspi->req_completion,
+							NCI_SPI_SEND_TIMEOUT);
 
-	if (completion_rc <= 0 || ndev->req_result == ACKNOWLEDGE_NACK)
+	if (completion_rc <= 0 || nspi->req_result == ACKNOWLEDGE_NACK)
 		ret = -EIO;
 
 done:
+	kfree_skb(skb);
+
 	return ret;
 }
-
-static struct nci_ops nci_spi_ops = {
-	.open = nci_spi_open,
-	.close = nci_spi_close,
-	.send = nci_spi_send,
-};
+EXPORT_SYMBOL_GPL(nci_spi_send);
 
 /* ---- Interface to NCI SPI drivers ---- */
 
 /**
- * nci_spi_allocate_device - allocate a new nci spi device
+ * nci_spi_allocate_spi - allocate a new nci spi
  *
  * @spi: SPI device
- * @ops: device operations
- * @supported_protocols: NFC protocols supported by the device
- * @supported_se: NFC Secure Elements supported by the device
- * @acknowledge_mode: Acknowledge mode used by the device
+ * @acknowledge_mode: Acknowledge mode used by the NFC device
  * @delay: delay between transactions in us
+ * @ndev: nci dev to send incoming nci frames to
  */
-struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
-						struct nci_spi_ops *ops,
-						u32 supported_protocols,
-						u32 supported_se,
-						u8 acknowledge_mode,
-						unsigned int delay)
+struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
+				     u8 acknowledge_mode, unsigned int delay,
+				     struct nci_dev *ndev)
 {
-	struct nci_spi_dev *ndev;
-	int tailroom = 0;
+	struct nci_spi *nspi;
 
-	if (!ops->open || !ops->close || !ops->assert_int || !ops->deassert_int)
+	nspi = devm_kzalloc(&spi->dev, sizeof(struct nci_spi), GFP_KERNEL);
+	if (!nspi)
 		return NULL;
 
-	if (!supported_protocols)
-		return NULL;
-
-	ndev = devm_kzalloc(&spi->dev, sizeof(struct nci_dev), GFP_KERNEL);
-	if (!ndev)
-		return NULL;
+	nspi->acknowledge_mode = acknowledge_mode;
+	nspi->xfer_udelay = delay;
 
-	ndev->ops = ops;
-	ndev->acknowledge_mode = acknowledge_mode;
-	ndev->xfer_udelay = delay;
+	nspi->spi = spi;
+	nspi->ndev = ndev;
 
-	if (acknowledge_mode == NCI_SPI_CRC_ENABLED)
-		tailroom += NCI_SPI_CRC_LEN;
-
-	ndev->nci_dev = nci_allocate_device(&nci_spi_ops, supported_protocols,
-					    NCI_SPI_HDR_LEN, tailroom);
-	if (!ndev->nci_dev)
-		return NULL;
-
-	nci_set_drvdata(ndev->nci_dev, ndev);
-
-	return ndev;
+	return nspi;
 }
-EXPORT_SYMBOL_GPL(nci_spi_allocate_device);
+EXPORT_SYMBOL_GPL(nci_spi_allocate_spi);
 
-/**
- * nci_spi_free_device - deallocate nci spi device
- *
- * @ndev: The nci spi device to deallocate
- */
-void nci_spi_free_device(struct nci_spi_dev *ndev)
-{
-	nci_free_device(ndev->nci_dev);
-}
-EXPORT_SYMBOL_GPL(nci_spi_free_device);
-
-/**
- * nci_spi_register_device - register a nci spi device in the nfc subsystem
- *
- * @pdev: The nci spi device to register
- */
-int nci_spi_register_device(struct nci_spi_dev *ndev)
-{
-	return nci_register_device(ndev->nci_dev);
-}
-EXPORT_SYMBOL_GPL(nci_spi_register_device);
-
-/**
- * nci_spi_unregister_device - unregister a nci spi device in the nfc subsystem
- *
- * @dev: The nci spi device to unregister
- */
-void nci_spi_unregister_device(struct nci_spi_dev *ndev)
-{
-	nci_unregister_device(ndev->nci_dev);
-}
-EXPORT_SYMBOL_GPL(nci_spi_unregister_device);
-
-static int send_acknowledge(struct nci_spi_dev *ndev, u8 acknowledge)
+static int send_acknowledge(struct nci_spi *nspi, u8 acknowledge)
 {
 	struct sk_buff *skb;
 	unsigned char *hdr;
 	u16 crc;
 	int ret;
 
-	skb = nci_skb_alloc(ndev->nci_dev, 0, GFP_KERNEL);
+	skb = nci_skb_alloc(nspi->ndev, 0, GFP_KERNEL);
 
 	/* add the NCI SPI header to the start of the buffer */
 	hdr = skb_push(skb, NCI_SPI_HDR_LEN);
@@ -225,14 +170,14 @@ static int send_acknowledge(struct nci_spi_dev *ndev, u8 acknowledge)
 	*skb_put(skb, 1) = crc >> 8;
 	*skb_put(skb, 1) = crc & 0xFF;
 
-	ret = __nci_spi_send(ndev, skb);
+	ret = __nci_spi_send(nspi, skb, 0);
 
 	kfree_skb(skb);
 
 	return ret;
 }
 
-static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *ndev)
+static struct sk_buff *__nci_spi_read(struct nci_spi *nspi)
 {
 	struct sk_buff *skb;
 	struct spi_message m;
@@ -242,43 +187,49 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *ndev)
 	int ret;
 
 	spi_message_init(&m);
+
+	memset(&tx, 0, sizeof(struct spi_transfer));
 	req[0] = NCI_SPI_DIRECT_READ;
-	req[1] = ndev->acknowledge_mode;
+	req[1] = nspi->acknowledge_mode;
 	tx.tx_buf = req;
 	tx.len = 2;
 	tx.cs_change = 0;
 	spi_message_add_tail(&tx, &m);
+
+	memset(&rx, 0, sizeof(struct spi_transfer));
 	rx.rx_buf = resp_hdr;
 	rx.len = 2;
 	rx.cs_change = 1;
 	spi_message_add_tail(&rx, &m);
-	ret = spi_sync(ndev->spi, &m);
 
+	ret = spi_sync(nspi->spi, &m);
 	if (ret)
 		return NULL;
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED)
 		rx_len = ((resp_hdr[0] & NCI_SPI_MSB_PAYLOAD_MASK) << 8) +
 				resp_hdr[1] + NCI_SPI_CRC_LEN;
 	else
 		rx_len = (resp_hdr[0] << 8) | resp_hdr[1];
 
-	skb = nci_skb_alloc(ndev->nci_dev, rx_len, GFP_KERNEL);
+	skb = nci_skb_alloc(nspi->ndev, rx_len, GFP_KERNEL);
 	if (!skb)
 		return NULL;
 
 	spi_message_init(&m);
+
+	memset(&rx, 0, sizeof(struct spi_transfer));
 	rx.rx_buf = skb_put(skb, rx_len);
 	rx.len = rx_len;
 	rx.cs_change = 0;
-	rx.delay_usecs = ndev->xfer_udelay;
+	rx.delay_usecs = nspi->xfer_udelay;
 	spi_message_add_tail(&rx, &m);
-	ret = spi_sync(ndev->spi, &m);
 
+	ret = spi_sync(nspi->spi, &m);
 	if (ret)
 		goto receive_error;
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		*skb_push(skb, 1) = resp_hdr[1];
 		*skb_push(skb, 1) = resp_hdr[0];
 	}
@@ -318,61 +269,53 @@ static u8 nci_spi_get_ack(struct sk_buff *skb)
 }
 
 /**
- * nci_spi_recv_frame - receive frame from NCI SPI drivers
+ * nci_spi_read - read frame from NCI SPI drivers
  *
- * @ndev: The nci spi device
+ * @nspi: The nci spi
  * Context: can sleep
  *
  * This call may only be used from a context that may sleep.  The sleep
  * is non-interruptible, and has no timeout.
  *
- * It returns zero on success, else a negative error code.
+ * It returns an allocated skb containing the frame on success, or NULL.
  */
-int nci_spi_recv_frame(struct nci_spi_dev *ndev)
+struct sk_buff *nci_spi_read(struct nci_spi *nspi)
 {
 	struct sk_buff *skb;
-	int ret = 0;
-
-	ndev->ops->deassert_int(ndev);
 
 	/* Retrieve frame from SPI */
-	skb = __nci_spi_recv_frame(ndev);
-	if (!skb) {
-		ret = -EIO;
+	skb = __nci_spi_read(nspi);
+	if (!skb)
 		goto done;
-	}
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		if (!nci_spi_check_crc(skb)) {
-			send_acknowledge(ndev, ACKNOWLEDGE_NACK);
+			send_acknowledge(nspi, ACKNOWLEDGE_NACK);
 			goto done;
 		}
 
 		/* In case of acknowledged mode: if ACK or NACK received,
 		 * unblock completion of latest frame sent.
 		 */
-		ndev->req_result = nci_spi_get_ack(skb);
-		if (ndev->req_result)
-			complete(&ndev->req_completion);
+		nspi->req_result = nci_spi_get_ack(skb);
+		if (nspi->req_result)
+			complete(&nspi->req_completion);
 	}
 
 	/* If there is no payload (ACK/NACK only frame),
 	 * free the socket buffer
 	 */
-	if (skb->len == 0) {
+	if (!skb->len) {
 		kfree_skb(skb);
+		skb = NULL;
 		goto done;
 	}
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
-		send_acknowledge(ndev, ACKNOWLEDGE_ACK);
-
-	/* Forward skb to NCI core layer */
-	ret = nci_recv_frame(ndev->nci_dev, skb);
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED)
+		send_acknowledge(nspi, ACKNOWLEDGE_ACK);
 
 done:
-	ndev->ops->assert_int(ndev);
 
-	return ret;
+	return skb;
 }
-EXPORT_SYMBOL_GPL(nci_spi_recv_frame);
+EXPORT_SYMBOL_GPL(nci_spi_read);
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 68063b2025da..84b7e3ea7b7a 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -58,6 +58,7 @@ static const struct nla_policy nfc_genl_policy[NFC_ATTR_MAX + 1] = {
 	[NFC_ATTR_LLC_SDP] = { .type = NLA_NESTED },
 	[NFC_ATTR_FIRMWARE_NAME] = { .type = NLA_STRING,
 				     .len = NFC_FIRMWARE_NAME_MAXSIZE },
+	[NFC_ATTR_SE_APDU] = { .type = NLA_BINARY },
 };
 
 static const struct nla_policy nfc_sdp_genl_policy[NFC_SDP_ATTR_MAX + 1] = {
@@ -1278,6 +1279,91 @@ static int nfc_genl_dump_ses_done(struct netlink_callback *cb)
 	return 0;
 }
 
+struct se_io_ctx {
+	u32 dev_idx;
+	u32 se_idx;
+};
+
+static void se_io_cb(void *context, u8 *apdu, size_t apdu_len, int err)
+{
+	struct se_io_ctx *ctx = context;
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg) {
+		kfree(ctx);
+		return;
+	}
+
+	hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+			  NFC_CMD_SE_IO);
+	if (!hdr)
+		goto free_msg;
+
+	if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, ctx->dev_idx) ||
+	    nla_put_u32(msg, NFC_ATTR_SE_INDEX, ctx->se_idx) ||
+	    nla_put(msg, NFC_ATTR_SE_APDU, apdu_len, apdu))
+		goto nla_put_failure;
+
+	genlmsg_end(msg, hdr);
+
+	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+	kfree(ctx);
+
+	return;
+
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+free_msg:
+	nlmsg_free(msg);
+	kfree(ctx);
+
+	return;
+}
+
+static int nfc_genl_se_io(struct sk_buff *skb, struct genl_info *info)
+{
+	struct nfc_dev *dev;
+	struct se_io_ctx *ctx;
+	u32 dev_idx, se_idx;
+	u8 *apdu;
+	size_t apdu_len;
+
+	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
+	    !info->attrs[NFC_ATTR_SE_INDEX] ||
+	    !info->attrs[NFC_ATTR_SE_APDU])
+		return -EINVAL;
+
+	dev_idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+	se_idx = nla_get_u32(info->attrs[NFC_ATTR_SE_INDEX]);
+
+	dev = nfc_get_device(dev_idx);
+	if (!dev)
+		return -ENODEV;
+
+	if (!dev->ops || !dev->ops->se_io)
+		return -ENOTSUPP;
+
+	apdu_len = nla_len(info->attrs[NFC_ATTR_SE_APDU]);
+	if (apdu_len == 0)
+		return -EINVAL;
+
+	apdu = nla_data(info->attrs[NFC_ATTR_SE_APDU]);
+	if (!apdu)
+		return -EINVAL;
+
+	ctx = kzalloc(sizeof(struct se_io_ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->dev_idx = dev_idx;
+	ctx->se_idx = se_idx;
+
+	return dev->ops->se_io(dev, se_idx, apdu, apdu_len, se_io_cb, ctx);
+}
+
 static struct genl_ops nfc_genl_ops[] = {
 	{
 		.cmd = NFC_CMD_GET_DEVICE,
@@ -1358,6 +1444,11 @@ static struct genl_ops nfc_genl_ops[] = {
 		.done = nfc_genl_dump_ses_done,
 		.policy = nfc_genl_policy,
 	},
+	{
+		.cmd = NFC_CMD_SE_IO,
+		.doit = nfc_genl_se_io,
+		.policy = nfc_genl_policy,
+	},
 };
 
 
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c
index 313bf1bc848a..cd958b381f96 100644
--- a/net/nfc/rawsock.c
+++ b/net/nfc/rawsock.c
@@ -142,11 +142,11 @@ static void rawsock_data_exchange_complete(void *context, struct sk_buff *skb,
 
 	err = rawsock_add_header(skb);
 	if (err)
-		goto error;
+		goto error_skb;
 
 	err = sock_queue_rcv_skb(sk, skb);
 	if (err)
-		goto error;
+		goto error_skb;
 
 	spin_lock_bh(&sk->sk_write_queue.lock);
 	if (!skb_queue_empty(&sk->sk_write_queue))
@@ -158,6 +158,9 @@ static void rawsock_data_exchange_complete(void *context, struct sk_buff *skb,
 	sock_put(sk);
 	return;
 
+error_skb:
+	kfree_skb(skb);
+
 error:
 	rawsock_report_error(sk, err);
 	sock_put(sk);
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index d62cb1e91475..a0ec143ba3dc 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -768,23 +768,25 @@ const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
 }
 EXPORT_SYMBOL(freq_reg_info);
 
-#ifdef CONFIG_CFG80211_REG_DEBUG
-static const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
+const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
 {
 	switch (initiator) {
 	case NL80211_REGDOM_SET_BY_CORE:
-		return "Set by core";
+		return "core";
 	case NL80211_REGDOM_SET_BY_USER:
-		return "Set by user";
+		return "user";
 	case NL80211_REGDOM_SET_BY_DRIVER:
-		return "Set by driver";
+		return "driver";
 	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
-		return "Set by country IE";
+		return "country IE";
 	default:
 		WARN_ON(1);
-		return "Set by bug";
+		return "bug";
 	}
 }
+EXPORT_SYMBOL(reg_initiator_name);
+
+#ifdef CONFIG_CFG80211_REG_DEBUG
 
 static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
 				    const struct ieee80211_reg_rule *reg_rule)
@@ -979,14 +981,17 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	struct regulatory_request *lr = get_last_request();
 
 	if (!lr) {
-		REG_DBG_PRINT("Ignoring regulatory request %s since last_request is not set\n",
+		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+			      "since last_request is not set\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
 
 	if (initiator == NL80211_REGDOM_SET_BY_CORE &&
 	    wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) {
-		REG_DBG_PRINT("Ignoring regulatory request %s since the driver uses its own custom regulatory domain\n",
+		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+			      "since the driver uses its own custom "
+			      "regulatory domain\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
@@ -998,7 +1003,9 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY && !wiphy->regd &&
 	    initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
 	    !is_world_regdom(lr->alpha2)) {
-		REG_DBG_PRINT("Ignoring regulatory request %s since the driver requires its own regulatory domain to be set first\n",
+		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+			      "since the driver requires its own regulatory "
+			      "domain to be set first\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}