manual update from upstream:

Applied Al's change 06a544971fad0992fe8b92c5647538d573089dd4
to new location of swiotlb.c

Signed-off-by: Tony Luck <tony.luck@intel.com>

8 files changed, 278 insertions, 326 deletions

diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 543f93e0f23f..b9fbe6e7f9ae 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -55,14 +55,6 @@ config BT_HCIUART_BCSP
 
 	  Say Y here to compile support for HCI BCSP protocol.
 
-config BT_HCIUART_BCSP_TXCRC
-	bool "Transmit CRC with every BCSP packet"
-	depends on BT_HCIUART_BCSP
-	help
-	  If you say Y here, a 16-bit CRC checksum will be transmitted along with
-	  every BCSP (BlueCore Serial Protocol) packet sent to the Bluetooth chip.
-	  This increases reliability, but slightly reduces efficiency.
-
 config BT_HCIBCM203X
 	tristate "HCI BCM203x USB driver"
 	depends on USB
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index 4fa85234d8b5..0db0400519c9 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -550,6 +550,9 @@ static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *
 	if (ignore)
 		return -ENODEV;
 
+	if (intf->cur_altsetting->desc.bInterfaceNumber > 0)
+		return -ENODEV;
+
 	data = kmalloc(sizeof(*data), GFP_KERNEL);
 	if (!data) {
 		BT_ERR("Can't allocate data structure");
diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
index 0ee324e1265d..0a4761415ac3 100644
--- a/drivers/bluetooth/hci_bcsp.c
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -1,35 +1,27 @@
-/* 
-   BlueCore Serial Protocol (BCSP) for Linux Bluetooth stack (BlueZ).
-   Copyright 2002 by Fabrizio Gennari <fabrizio.gennari@philips.com>
-
-   Based on
-       hci_h4.c  by Maxim Krasnyansky <maxk@qualcomm.com>
-       ABCSP     by Carl Orsborn <cjo@csr.com>
-
-   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.
-*/
-
 /*
- * $Id: hci_bcsp.c,v 1.2 2002/09/26 05:05:14 maxk Exp $
+ *
+ *  Bluetooth HCI UART driver
+ *
+ *  Copyright (C) 2002-2003  Fabrizio Gennari <fabrizio.gennari@philips.com>
+ *  Copyright (C) 2004-2005  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
  */
 
-#define VERSION "0.2"
-
 #include <linux/config.h>
 #include <linux/module.h>
 
@@ -52,16 +44,56 @@
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
+
 #include "hci_uart.h"
-#include "hci_bcsp.h"
 
 #ifndef CONFIG_BT_HCIUART_DEBUG
 #undef  BT_DBG
 #define BT_DBG( A... )
 #endif
 
+#define VERSION "0.3"
+
+static int txcrc = 1;
 static int hciextn = 1;
 
+#define BCSP_TXWINSIZE	4
+
+#define BCSP_ACK_PKT	0x05
+#define BCSP_LE_PKT	0x06
+
+struct bcsp_struct {
+	struct sk_buff_head unack;	/* Unack'ed packets queue */
+	struct sk_buff_head rel;	/* Reliable packets queue */
+	struct sk_buff_head unrel;	/* Unreliable packets queue */
+
+	unsigned long rx_count;
+	struct	sk_buff *rx_skb;
+	u8	rxseq_txack;		/* rxseq == txack. */
+	u8	rxack;			/* Last packet sent by us that the peer ack'ed */
+	struct	timer_list tbcsp;
+
+	enum {
+		BCSP_W4_PKT_DELIMITER,
+		BCSP_W4_PKT_START,
+		BCSP_W4_BCSP_HDR,
+		BCSP_W4_DATA,
+		BCSP_W4_CRC
+	} rx_state;
+
+	enum {
+		BCSP_ESCSTATE_NOESC,
+		BCSP_ESCSTATE_ESC
+	} rx_esc_state;
+
+	u8	use_crc;
+	u16	message_crc;
+	u8	txack_req;		/* Do we need to send ack's to the peer? */
+
+	/* Reliable packet sequence number - used to assign seq to each rel pkt. */
+	u8	msgq_txseq;
+};
+
 /* ---- BCSP CRC calculation ---- */
 
 /* Table for calculating CRC for polynomial 0x1021, LSB processed first,
@@ -111,6 +143,7 @@ static u16 bcsp_crc_reverse(u16 crc)
 		rev |= (crc & 1);
 		crc = crc >> 1;
 	}
+
 	return (rev);
 }
 
@@ -119,6 +152,7 @@ static u16 bcsp_crc_reverse(u16 crc)
 static void bcsp_slip_msgdelim(struct sk_buff *skb)
 {
 	const char pkt_delim = 0xc0;
+
 	memcpy(skb_put(skb, 1), &pkt_delim, 1);
 }
 
@@ -173,11 +207,8 @@ static struct sk_buff *bcsp_prepare_pkt(struct bcsp_struct *bcsp, u8 *data,
 {
 	struct sk_buff *nskb;
 	u8 hdr[4], chan;
-	int rel, i;
-
-#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
 	u16 BCSP_CRC_INIT(bcsp_txmsg_crc);
-#endif
+	int rel, i;
 
 	switch (pkt_type) {
 	case HCI_ACLDATA_PKT:
@@ -240,9 +271,9 @@ static struct sk_buff *bcsp_prepare_pkt(struct bcsp_struct *bcsp, u8 *data,
 		BT_DBG("Sending packet with seqno %u", bcsp->msgq_txseq);
 		bcsp->msgq_txseq = ++(bcsp->msgq_txseq) & 0x07;
 	}
-#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
-	hdr[0] |= 0x40;
-#endif
+
+	if (bcsp->use_crc)
+		hdr[0] |= 0x40;
 
 	hdr[1] = ((len << 4) & 0xff) | chan;
 	hdr[2] = len >> 4;
@@ -251,25 +282,25 @@ static struct sk_buff *bcsp_prepare_pkt(struct bcsp_struct *bcsp, u8 *data,
 	/* Put BCSP header */
 	for (i = 0; i < 4; i++) {
 		bcsp_slip_one_byte(nskb, hdr[i]);
-#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
-		bcsp_crc_update(&bcsp_txmsg_crc, hdr[i]);
-#endif
+
+		if (bcsp->use_crc)
+			bcsp_crc_update(&bcsp_txmsg_crc, hdr[i]);
 	}
 
 	/* Put payload */
 	for (i = 0; i < len; i++) {
 		bcsp_slip_one_byte(nskb, data[i]);
-#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
-		bcsp_crc_update(&bcsp_txmsg_crc, data[i]);
-#endif
+
+		if (bcsp->use_crc)
+			bcsp_crc_update(&bcsp_txmsg_crc, data[i]);
 	}
 
-#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
 	/* Put CRC */
-	bcsp_txmsg_crc = bcsp_crc_reverse(bcsp_txmsg_crc);
-	bcsp_slip_one_byte(nskb, (u8) ((bcsp_txmsg_crc >> 8) & 0x00ff));
-	bcsp_slip_one_byte(nskb, (u8) (bcsp_txmsg_crc & 0x00ff));
-#endif
+	if (bcsp->use_crc) {
+		bcsp_txmsg_crc = bcsp_crc_reverse(bcsp_txmsg_crc);
+		bcsp_slip_one_byte(nskb, (u8) ((bcsp_txmsg_crc >> 8) & 0x00ff));
+		bcsp_slip_one_byte(nskb, (u8) (bcsp_txmsg_crc & 0x00ff));
+	}
 
 	bcsp_slip_msgdelim(nskb);
 	return nskb;
@@ -317,7 +348,6 @@ static struct sk_buff *bcsp_dequeue(struct hci_uart *hu)
 
 	spin_unlock_irqrestore(&bcsp->unack.lock, flags);
 
-
 	/* We could not send a reliable packet, either because there are
 	   none or because there are too many unack'ed pkts. Did we receive
 	   any packets we have not acknowledged yet ? */
@@ -363,7 +393,7 @@ static void bcsp_pkt_cull(struct bcsp_struct *bcsp)
 		BT_ERR("Peer acked invalid packet");
 
 	BT_DBG("Removing %u pkts out of %u, up to seqno %u",
-	       pkts_to_be_removed, bcsp->unack.qlen, (seqno - 1) & 0x07);
+		pkts_to_be_removed, bcsp->unack.qlen, (seqno - 1) & 0x07);
 
 	for (i = 0, skb = ((struct sk_buff *) &bcsp->unack)->next; i < pkts_to_be_removed
 			&& skb != (struct sk_buff *) &bcsp->unack; i++) {
@@ -374,8 +404,10 @@ static void bcsp_pkt_cull(struct bcsp_struct *bcsp)
 		kfree_skb(skb);
 		skb = nskb;
 	}
+
 	if (bcsp->unack.qlen == 0)
 		del_timer(&bcsp->tbcsp);
+
 	spin_unlock_irqrestore(&bcsp->unack.lock, flags);
 
 	if (i != pkts_to_be_removed)
@@ -530,6 +562,7 @@ static inline void bcsp_complete_rx_pkt(struct hci_uart *hu)
 
 		hci_recv_frame(bcsp->rx_skb);
 	}
+
 	bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
 	bcsp->rx_skb = NULL;
 }
@@ -598,8 +631,8 @@ static int bcsp_recv(struct hci_uart *hu, void *data, int count)
 
 				BT_ERR ("Checksum failed: computed %04x received %04x",
 					bcsp_crc_reverse(bcsp->message_crc),
-				     	(bcsp->rx_skb-> data[bcsp->rx_skb->len - 2] << 8) +
-				     	bcsp->rx_skb->data[bcsp->rx_skb->len - 1]);
+					(bcsp->rx_skb-> data[bcsp->rx_skb->len - 2] << 8) +
+					bcsp->rx_skb->data[bcsp->rx_skb->len - 1]);
 
 				kfree_skb(bcsp->rx_skb);
 				bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
@@ -633,7 +666,7 @@ static int bcsp_recv(struct hci_uart *hu, void *data, int count)
 				bcsp->rx_count = 4;
 				bcsp->rx_esc_state = BCSP_ESCSTATE_NOESC;
 				BCSP_CRC_INIT(bcsp->message_crc);
-				
+
 				/* Do not increment ptr or decrement count
 				 * Allocate packet. Max len of a BCSP pkt= 
 				 * 0xFFF (payload) +4 (header) +2 (crc) */
@@ -698,6 +731,9 @@ static int bcsp_open(struct hci_uart *hu)
 
 	bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
 
+	if (txcrc)
+		bcsp->use_crc = 1;
+
 	return 0;
 }
 
@@ -718,18 +754,19 @@ static int bcsp_close(struct hci_uart *hu)
 }
 
 static struct hci_uart_proto bcsp = {
-	.id      = HCI_UART_BCSP,
-	.open    = bcsp_open,
-	.close   = bcsp_close,
-	.enqueue = bcsp_enqueue,
-	.dequeue = bcsp_dequeue,
-	.recv    = bcsp_recv,
-	.flush   = bcsp_flush
+	.id		= HCI_UART_BCSP,
+	.open		= bcsp_open,
+	.close		= bcsp_close,
+	.enqueue	= bcsp_enqueue,
+	.dequeue	= bcsp_dequeue,
+	.recv		= bcsp_recv,
+	.flush		= bcsp_flush
 };
 
 int bcsp_init(void)
 {
 	int err = hci_uart_register_proto(&bcsp);
+
 	if (!err)
 		BT_INFO("HCI BCSP protocol initialized");
 	else
@@ -743,5 +780,8 @@ int bcsp_deinit(void)
 	return hci_uart_unregister_proto(&bcsp);
 }
 
+module_param(txcrc, bool, 0644);
+MODULE_PARM_DESC(txcrc, "Transmit CRC with every BCSP packet");
+
 module_param(hciextn, bool, 0644);
 MODULE_PARM_DESC(hciextn, "Convert HCI Extensions into BCSP packets");
diff --git a/drivers/bluetooth/hci_bcsp.h b/drivers/bluetooth/hci_bcsp.h
deleted file mode 100644
index a2b3bb92274b..000000000000
--- a/drivers/bluetooth/hci_bcsp.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/* 
-   BlueCore Serial Protocol (BCSP) for Linux Bluetooth stack (BlueZ).
-   Copyright 2002 by Fabrizio Gennari <fabrizio.gennari@philips.com>
-
-   Based on
-       hci_h4.c  by Maxim Krasnyansky <maxk@qualcomm.com>
-       ABCSP     by Carl Orsborn <cjo@csr.com>
-
-   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.
-*/
-
-/* 
- * $Id: hci_bcsp.h,v 1.2 2002/09/26 05:05:14 maxk Exp $
- */
-
-#ifndef __HCI_BCSP_H__
-#define __HCI_BCSP_H__
-
-#define BCSP_TXWINSIZE  4
-
-#define BCSP_ACK_PKT    0x05
-#define BCSP_LE_PKT     0x06
-
-struct bcsp_struct {
-	struct sk_buff_head unack;	/* Unack'ed packets queue */
-	struct sk_buff_head rel;	/* Reliable packets queue */
-	struct sk_buff_head unrel;	/* Unreliable packets queue */
-
-	unsigned long rx_count;
-	struct  sk_buff *rx_skb;
-	u8      rxseq_txack;		/* rxseq == txack. */
-	u8      rxack;			/* Last packet sent by us that the peer ack'ed */
-	struct  timer_list tbcsp;
-	
-	enum {
-		BCSP_W4_PKT_DELIMITER,
-		BCSP_W4_PKT_START,
-		BCSP_W4_BCSP_HDR,
-		BCSP_W4_DATA,
-		BCSP_W4_CRC
-	} rx_state;
-
-	enum {
-		BCSP_ESCSTATE_NOESC,
-		BCSP_ESCSTATE_ESC
-	} rx_esc_state;
-
-	u16     message_crc;
-	u8      txack_req;		/* Do we need to send ack's to the peer? */
-
-	/* Reliable packet sequence number - used to assign seq to each rel pkt. */
-	u8      msgq_txseq;
-};
-
-#endif	/* __HCI_BCSP_H__ */
diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
index cf8a22d58d96..12e369a66fc2 100644
--- a/drivers/bluetooth/hci_h4.c
+++ b/drivers/bluetooth/hci_h4.c
@@ -1,33 +1,27 @@
-/* 
-   BlueZ - Bluetooth protocol stack for Linux
-   Copyright (C) 2000-2001 Qualcomm Incorporated
-
-   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
-
-   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.
-*/
-
 /*
- * Bluetooth HCI UART(H4) protocol.
  *
- * $Id: hci_h4.c,v 1.3 2002/09/09 01:17:32 maxk Exp $    
+ *  Bluetooth HCI UART driver
+ *
+ *  Copyright (C) 2000-2001  Qualcomm Incorporated
+ *  Copyright (C) 2002-2003  Maxim Krasnyansky <maxk@qualcomm.com>
+ *  Copyright (C) 2004-2005  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
  */
-#define VERSION "1.2"
 
 #include <linux/config.h>
 #include <linux/module.h>
@@ -51,24 +45,41 @@
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
+
 #include "hci_uart.h"
-#include "hci_h4.h"
 
 #ifndef CONFIG_BT_HCIUART_DEBUG
 #undef  BT_DBG
 #define BT_DBG( A... )
 #endif
 
+#define VERSION "1.2"
+
+struct h4_struct {
+	unsigned long rx_state;
+	unsigned long rx_count;
+	struct sk_buff *rx_skb;
+	struct sk_buff_head txq;
+};
+
+/* H4 receiver States */
+#define H4_W4_PACKET_TYPE	0
+#define H4_W4_EVENT_HDR		1
+#define H4_W4_ACL_HDR		2
+#define H4_W4_SCO_HDR		3
+#define H4_W4_DATA		4
+
 /* Initialize protocol */
 static int h4_open(struct hci_uart *hu)
 {
 	struct h4_struct *h4;
-	
+
 	BT_DBG("hu %p", hu);
-	
+
 	h4 = kmalloc(sizeof(*h4), GFP_ATOMIC);
 	if (!h4)
 		return -ENOMEM;
+
 	memset(h4, 0, sizeof(*h4));
 
 	skb_queue_head_init(&h4->txq);
@@ -83,7 +94,9 @@ static int h4_flush(struct hci_uart *hu)
 	struct h4_struct *h4 = hu->priv;
 
 	BT_DBG("hu %p", hu);
+
 	skb_queue_purge(&h4->txq);
+
 	return 0;
 }
 
@@ -91,16 +104,19 @@ static int h4_flush(struct hci_uart *hu)
 static int h4_close(struct hci_uart *hu)
 {
 	struct h4_struct *h4 = hu->priv;
+
 	hu->priv = NULL;
 
 	BT_DBG("hu %p", hu);
 
 	skb_queue_purge(&h4->txq);
+
 	if (h4->rx_skb)
 		kfree_skb(h4->rx_skb);
 
 	hu->priv = NULL;
 	kfree(h4);
+
 	return 0;
 }
 
@@ -114,6 +130,7 @@ static int h4_enqueue(struct hci_uart *hu, struct sk_buff *skb)
 	/* Prepend skb with frame type */
 	memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
 	skb_queue_tail(&h4->txq, skb);
+
 	return 0;
 }
 
@@ -122,6 +139,7 @@ static inline int h4_check_data_len(struct h4_struct *h4, int len)
 	register int room = skb_tailroom(h4->rx_skb);
 
 	BT_DBG("len %d room %d", len, room);
+
 	if (!len) {
 		hci_recv_frame(h4->rx_skb);
 	} else if (len > room) {
@@ -136,6 +154,7 @@ static inline int h4_check_data_len(struct h4_struct *h4, int len)
 	h4->rx_state = H4_W4_PACKET_TYPE;
 	h4->rx_skb   = NULL;
 	h4->rx_count = 0;
+
 	return 0;
 }
 
@@ -228,6 +247,7 @@ static int h4_recv(struct hci_uart *hu, void *data, int count)
 			ptr++; count--;
 			continue;
 		};
+
 		ptr++; count--;
 
 		/* Allocate packet */
@@ -238,9 +258,11 @@ static int h4_recv(struct hci_uart *hu, void *data, int count)
 			h4->rx_count = 0;
 			return 0;
 		}
+
 		h4->rx_skb->dev = (void *) hu->hdev;
 		bt_cb(h4->rx_skb)->pkt_type = type;
 	}
+
 	return count;
 }
 
@@ -251,23 +273,24 @@ static struct sk_buff *h4_dequeue(struct hci_uart *hu)
 }
 
 static struct hci_uart_proto h4p = {
-	.id      = HCI_UART_H4,
-	.open    = h4_open,
-	.close   = h4_close,
-	.recv    = h4_recv,
-	.enqueue = h4_enqueue,
-	.dequeue = h4_dequeue,
-	.flush   = h4_flush,
+	.id		= HCI_UART_H4,
+	.open		= h4_open,
+	.close		= h4_close,
+	.recv		= h4_recv,
+	.enqueue	= h4_enqueue,
+	.dequeue	= h4_dequeue,
+	.flush		= h4_flush,
 };
-	      
+
 int h4_init(void)
 {
 	int err = hci_uart_register_proto(&h4p);
+
 	if (!err)
 		BT_INFO("HCI H4 protocol initialized");
 	else
 		BT_ERR("HCI H4 protocol registration failed");
-	
+
 	return err;
 }
 
diff --git a/drivers/bluetooth/hci_h4.h b/drivers/bluetooth/hci_h4.h
deleted file mode 100644
index b95ff54bfd47..000000000000
--- a/drivers/bluetooth/hci_h4.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* 
-   BlueZ - Bluetooth protocol stack for Linux
-   Copyright (C) 2000-2001 Qualcomm Incorporated
-
-   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
-
-   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.
-*/
-
-/*
- * $Id: hci_h4.h,v 1.2 2002/09/09 01:17:32 maxk Exp $
- */
-
-#ifdef __KERNEL__
-struct h4_struct {
-	unsigned long rx_state;
-	unsigned long rx_count;
-	struct sk_buff *rx_skb;
-	struct sk_buff_head txq;
-};
-
-/* H4 receiver States */
-#define H4_W4_PACKET_TYPE 0
-#define H4_W4_EVENT_HDR	  1
-#define H4_W4_ACL_HDR     2
-#define H4_W4_SCO_HDR     3
-#define H4_W4_DATA        4
-
-#endif /* __KERNEL__ */
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index aed80cc22890..4a775f6ea390 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -1,33 +1,27 @@
-/* 
-   BlueZ - Bluetooth protocol stack for Linux
-   Copyright (C) 2000-2001 Qualcomm Incorporated
-
-   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
-
-   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.
-*/
-
 /*
- * Bluetooth HCI UART driver.
  *
- * $Id: hci_ldisc.c,v 1.5 2002/10/02 18:37:20 maxk Exp $    
+ *  Bluetooth HCI UART driver
+ *
+ *  Copyright (C) 2000-2001  Qualcomm Incorporated
+ *  Copyright (C) 2002-2003  Maxim Krasnyansky <maxk@qualcomm.com>
+ *  Copyright (C) 2004-2005  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
  */
-#define VERSION "2.1"
 
 #include <linux/config.h>
 #include <linux/module.h>
@@ -59,6 +53,8 @@
 #define BT_DBG( A... )
 #endif
 
+#define VERSION "2.2"
+
 static int reset = 0;
 
 static struct hci_uart_proto *hup[HCI_UART_MAX_PROTO];
@@ -72,6 +68,7 @@ int hci_uart_register_proto(struct hci_uart_proto *p)
 		return -EEXIST;
 
 	hup[p->id] = p;
+
 	return 0;
 }
 
@@ -84,6 +81,7 @@ int hci_uart_unregister_proto(struct hci_uart_proto *p)
 		return -EINVAL;
 
 	hup[p->id] = NULL;
+
 	return 0;
 }
 
@@ -91,13 +89,14 @@ static struct hci_uart_proto *hci_uart_get_proto(unsigned int id)
 {
 	if (id >= HCI_UART_MAX_PROTO)
 		return NULL;
+
 	return hup[id];
 }
 
 static inline void hci_uart_tx_complete(struct hci_uart *hu, int pkt_type)
 {
 	struct hci_dev *hdev = hu->hdev;
-	
+
 	/* Update HCI stat counters */
 	switch (pkt_type) {
 	case HCI_COMMAND_PKT:
@@ -117,10 +116,12 @@ static inline void hci_uart_tx_complete(struct hci_uart *hu, int pkt_type)
 static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu)
 {
 	struct sk_buff *skb = hu->tx_skb;
+
 	if (!skb)
 		skb = hu->proto->dequeue(hu);
 	else
 		hu->tx_skb = NULL;
+
 	return skb;
 }
 
@@ -129,7 +130,7 @@ int hci_uart_tx_wakeup(struct hci_uart *hu)
 	struct tty_struct *tty = hu->tty;
 	struct hci_dev *hdev = hu->hdev;
 	struct sk_buff *skb;
-	
+
 	if (test_and_set_bit(HCI_UART_SENDING, &hu->tx_state)) {
 		set_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);
 		return 0;
@@ -142,7 +143,7 @@ restart:
 
 	while ((skb = hci_uart_dequeue(hu))) {
 		int len;
-	
+
 		set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
 		len = tty->driver->write(tty, skb->data, skb->len);
 		hdev->stat.byte_tx += len;
@@ -152,11 +153,11 @@ restart:
 			hu->tx_skb = skb;
 			break;
 		}
-	
+
 		hci_uart_tx_complete(hu, bt_cb(skb)->pkt_type);
 		kfree_skb(skb);
-	} 
-	
+	}
+
 	if (test_bit(HCI_UART_TX_WAKEUP, &hu->tx_state))
 		goto restart;
 
@@ -173,6 +174,7 @@ static int hci_uart_open(struct hci_dev *hdev)
 	/* Nothing to do for UART driver */
 
 	set_bit(HCI_RUNNING, &hdev->flags);
+
 	return 0;
 }
 
@@ -234,6 +236,7 @@ static int hci_uart_send_frame(struct sk_buff *skb)
 	hu->proto->enqueue(hu, skb);
 
 	hci_uart_tx_wakeup(hu);
+
 	return 0;
 }
 
@@ -241,7 +244,8 @@ static void hci_uart_destruct(struct hci_dev *hdev)
 {
 	struct hci_uart *hu;
 
-	if (!hdev) return;
+	if (!hdev)
+		return;
 
 	BT_DBG("%s", hdev->name);
 
@@ -272,6 +276,7 @@ static int hci_uart_tty_open(struct tty_struct *tty)
 		BT_ERR("Can't allocate controll structure");
 		return -ENFILE;
 	}
+
 	memset(hu, 0, sizeof(struct hci_uart));
 
 	tty->disc_data = hu;
@@ -280,8 +285,10 @@ static int hci_uart_tty_open(struct tty_struct *tty)
 	spin_lock_init(&hu->rx_lock);
 
 	/* Flush any pending characters in the driver and line discipline. */
+
 	/* FIXME: why is this needed. Note don't use ldisc_ref here as the
 	   open path is before the ldisc is referencable */
+
 	if (tty->ldisc.flush_buffer)
 		tty->ldisc.flush_buffer(tty);
 
@@ -372,13 +379,13 @@ static int hci_uart_tty_room (struct tty_struct *tty)
 static void hci_uart_tty_receive(struct tty_struct *tty, const __u8 *data, char *flags, int count)
 {
 	struct hci_uart *hu = (void *)tty->disc_data;
-	
+
 	if (!hu || tty != hu->tty)
 		return;
 
 	if (!test_bit(HCI_UART_PROTO_SET, &hu->flags))
 		return;
-	
+
 	spin_lock(&hu->rx_lock);
 	hu->proto->recv(hu, (void *) data, count);
 	hu->hdev->stat.byte_rx += count;
@@ -429,8 +436,8 @@ static int hci_uart_register_dev(struct hci_uart *hu)
 static int hci_uart_set_proto(struct hci_uart *hu, int id)
 {
 	struct hci_uart_proto *p;
-	int err;	
-	
+	int err;
+
 	p = hci_uart_get_proto(id);
 	if (!p)
 		return -EPROTONOSUPPORT;
@@ -446,6 +453,7 @@ static int hci_uart_set_proto(struct hci_uart *hu, int id)
 		p->close(hu);
 		return err;
 	}
+
 	return 0;
 }
 
@@ -463,7 +471,7 @@ static int hci_uart_set_proto(struct hci_uart *hu, int id)
  * Return Value:    Command dependent
  */
 static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file * file,
-                            unsigned int cmd, unsigned long arg)
+					unsigned int cmd, unsigned long arg)
 {
 	struct hci_uart *hu = (void *)tty->disc_data;
 	int err = 0;
@@ -483,14 +491,14 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file * file,
 				return err;
 			}
 			tty->low_latency = 1;
-		} else	
+		} else
 			return -EBUSY;
 
 	case HCIUARTGETPROTO:
 		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
 			return hu->proto->id;
 		return -EUNATCH;
-		
+
 	default:
 		err = n_tty_ioctl(tty, file, cmd, arg);
 		break;
@@ -502,28 +510,24 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file * file,
 /*
  * We don't provide read/write/poll interface for user space.
  */
-static ssize_t hci_uart_tty_read(struct tty_struct *tty, struct file *file, unsigned char __user *buf, size_t nr)
+static ssize_t hci_uart_tty_read(struct tty_struct *tty, struct file *file,
+					unsigned char __user *buf, size_t nr)
 {
 	return 0;
 }
-static ssize_t hci_uart_tty_write(struct tty_struct *tty, struct file *file, const unsigned char *data, size_t count)
+
+static ssize_t hci_uart_tty_write(struct tty_struct *tty, struct file *file,
+					const unsigned char *data, size_t count)
 {
 	return 0;
 }
-static unsigned int hci_uart_tty_poll(struct tty_struct *tty, struct file *filp, poll_table *wait)
+
+static unsigned int hci_uart_tty_poll(struct tty_struct *tty,
+					struct file *filp, poll_table *wait)
 {
 	return 0;
 }
 
-#ifdef CONFIG_BT_HCIUART_H4
-int h4_init(void);
-int h4_deinit(void);
-#endif
-#ifdef CONFIG_BT_HCIUART_BCSP
-int bcsp_init(void);
-int bcsp_deinit(void);
-#endif
-
 static int __init hci_uart_init(void)
 {
 	static struct tty_ldisc hci_uart_ldisc;
@@ -534,18 +538,18 @@ static int __init hci_uart_init(void)
 	/* Register the tty discipline */
 
 	memset(&hci_uart_ldisc, 0, sizeof (hci_uart_ldisc));
-	hci_uart_ldisc.magic       = TTY_LDISC_MAGIC;
-	hci_uart_ldisc.name        = "n_hci";
-	hci_uart_ldisc.open        = hci_uart_tty_open;
-	hci_uart_ldisc.close       = hci_uart_tty_close;
-	hci_uart_ldisc.read        = hci_uart_tty_read;
-	hci_uart_ldisc.write       = hci_uart_tty_write;
-	hci_uart_ldisc.ioctl       = hci_uart_tty_ioctl;
-	hci_uart_ldisc.poll        = hci_uart_tty_poll;
-	hci_uart_ldisc.receive_room= hci_uart_tty_room;
-	hci_uart_ldisc.receive_buf = hci_uart_tty_receive;
-	hci_uart_ldisc.write_wakeup= hci_uart_tty_wakeup;
-	hci_uart_ldisc.owner       = THIS_MODULE;
+	hci_uart_ldisc.magic		= TTY_LDISC_MAGIC;
+	hci_uart_ldisc.name		= "n_hci";
+	hci_uart_ldisc.open		= hci_uart_tty_open;
+	hci_uart_ldisc.close		= hci_uart_tty_close;
+	hci_uart_ldisc.read		= hci_uart_tty_read;
+	hci_uart_ldisc.write		= hci_uart_tty_write;
+	hci_uart_ldisc.ioctl		= hci_uart_tty_ioctl;
+	hci_uart_ldisc.poll		= hci_uart_tty_poll;
+	hci_uart_ldisc.receive_room	= hci_uart_tty_room;
+	hci_uart_ldisc.receive_buf	= hci_uart_tty_receive;
+	hci_uart_ldisc.write_wakeup	= hci_uart_tty_wakeup;
+	hci_uart_ldisc.owner		= THIS_MODULE;
 
 	if ((err = tty_register_ldisc(N_HCI, &hci_uart_ldisc))) {
 		BT_ERR("HCI line discipline registration failed. (%d)", err);
diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h
index 0a57d72790ec..b250e6789dee 100644
--- a/drivers/bluetooth/hci_uart.h
+++ b/drivers/bluetooth/hci_uart.h
@@ -1,32 +1,29 @@
-/* 
-   BlueZ - Bluetooth protocol stack for Linux
-   Copyright (C) 2000-2001 Qualcomm Incorporated
-
-   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
-
-   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.
-*/
-
 /*
- * $Id: hci_uart.h,v 1.2 2002/09/09 01:17:32 maxk Exp $
+ *
+ *  Bluetooth HCI UART driver
+ *
+ *  Copyright (C) 2000-2001  Qualcomm Incorporated
+ *  Copyright (C) 2002-2003  Maxim Krasnyansky <maxk@qualcomm.com>
+ *  Copyright (C) 2004-2005  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
  */
 
-#ifndef N_HCI 
+#ifndef N_HCI
 #define N_HCI	15
 #endif
 
@@ -42,7 +39,6 @@
 #define HCI_UART_3WIRE	2
 #define HCI_UART_H4DS	3
 
-#ifdef __KERNEL__
 struct hci_uart;
 
 struct hci_uart_proto {
@@ -56,27 +52,35 @@ struct hci_uart_proto {
 };
 
 struct hci_uart {
-	struct tty_struct  *tty;
-	struct hci_dev     *hdev;
-	unsigned long      flags;
+	struct tty_struct	*tty;
+	struct hci_dev		*hdev;
+	unsigned long		flags;
 
-	struct hci_uart_proto *proto;
-	void               *priv;
-	
-	struct sk_buff     *tx_skb;
-	unsigned long      tx_state;
-	spinlock_t         rx_lock;
+	struct hci_uart_proto	*proto;
+	void			*priv;
+
+	struct sk_buff		*tx_skb;
+	unsigned long		tx_state;
+	spinlock_t		rx_lock;
 };
 
 /* HCI_UART flag bits */
-#define HCI_UART_PROTO_SET		0
+#define HCI_UART_PROTO_SET	0
 
 /* TX states  */
-#define HCI_UART_SENDING		1
-#define HCI_UART_TX_WAKEUP		2
+#define HCI_UART_SENDING	1
+#define HCI_UART_TX_WAKEUP	2
 
 int hci_uart_register_proto(struct hci_uart_proto *p);
 int hci_uart_unregister_proto(struct hci_uart_proto *p);
 int hci_uart_tx_wakeup(struct hci_uart *hu);
 
-#endif /* __KERNEL__ */
+#ifdef CONFIG_BT_HCIUART_H4
+int h4_init(void);
+int h4_deinit(void);
+#endif
+
+#ifdef CONFIG_BT_HCIUART_BCSP
+int bcsp_init(void);
+int bcsp_deinit(void);
+#endif