uwb: Remove the WLP subsystem and drivers

The only Wimedia LLC Protocol (WLP) hardware was an Intel i1480 chip
with a beta release of firmware that was never commercially available as
a product.  This hardware and firmware is no longer available as Intel
sold their UWB/WLP IP.  I also see little prospect of other WLP
capable hardware ever being available.

Signed-off-by: David Vrabel <david.vrabel@csr.com>

20 files changed, 1 insertions, 7803 deletions

diff --git a/drivers/uwb/Kconfig b/drivers/uwb/Kconfig
index bac8e7a6f17b..d100f54ed650 100644
--- a/drivers/uwb/Kconfig
+++ b/drivers/uwb/Kconfig
@@ -12,8 +12,7 @@ menuconfig UWB
 	  technology using a wide spectrum (3.1-10.6GHz). It is
 	  optimized for in-room use (480Mbps at 2 meters, 110Mbps at
 	  10m). It serves as the transport layer for other protocols,
-	  such as Wireless USB (WUSB), IP (WLP) and upcoming
-	  Bluetooth and 1394
+	  such as Wireless USB (WUSB).
 
 	  The topology is peer to peer; however, higher level
 	  protocols (such as WUSB) might impose a master/slave
@@ -58,13 +57,6 @@ config UWB_WHCI
           To compile this driver select Y (built in) or M (module). It
           is safe to select any even if you do not have the hardware.
 
-config UWB_WLP
-	tristate "Support WiMedia Link Protocol (Ethernet/IP over UWB)"
-	depends on UWB && NET
-	help
-	  This is a common library for drivers that implement
-	  networking over UWB.
-
 config UWB_I1480U
         tristate "Support for Intel Wireless UWB Link 1480 HWA"
         depends on UWB_HWA
@@ -77,14 +69,4 @@ config UWB_I1480U
          To compile this driver select Y (built in) or M (module). It
          is safe to select any even if you do not have the hardware.
 
-config UWB_I1480U_WLP
-        tristate "Support for Intel Wireless UWB Link 1480 HWA's WLP interface"
-        depends on UWB_I1480U &&  UWB_WLP && NET
-        help
-         This driver enables WLP support for the i1480 when connected via
-         USB. WLP is the WiMedia Link Protocol, or IP over UWB.
-
-         To compile this driver select Y (built in) or M (module). It
-         is safe to select any even if you don't have the hardware.
-
 endif # UWB
diff --git a/drivers/uwb/Makefile b/drivers/uwb/Makefile
index 2f98d080fe78..d47dd6e2942c 100644
--- a/drivers/uwb/Makefile
+++ b/drivers/uwb/Makefile
@@ -1,5 +1,4 @@
 obj-$(CONFIG_UWB)		+= uwb.o
-obj-$(CONFIG_UWB_WLP)		+= wlp/
 obj-$(CONFIG_UWB_WHCI)		+= umc.o whci.o whc-rc.o
 obj-$(CONFIG_UWB_HWA)		+= hwa-rc.o
 obj-$(CONFIG_UWB_I1480U)	+= i1480/
diff --git a/drivers/uwb/i1480/Makefile b/drivers/uwb/i1480/Makefile
index 212bbc7d4c32..d69da1684cfb 100644
--- a/drivers/uwb/i1480/Makefile
+++ b/drivers/uwb/i1480/Makefile
@@ -1,2 +1 @@
 obj-$(CONFIG_UWB_I1480U)	+= dfu/ i1480-est.o
-obj-$(CONFIG_UWB_I1480U_WLP)	+= i1480u-wlp/
diff --git a/drivers/uwb/i1480/i1480-wlp.h b/drivers/uwb/i1480/i1480-wlp.h
deleted file mode 100644
index 18a8b0e4567b..000000000000
--- a/drivers/uwb/i1480/i1480-wlp.h
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * Intel 1480 Wireless UWB Link
- * WLP specific definitions
- *
- *
- * Copyright (C) 2005-2006 Intel Corporation
- * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.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.
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * FIXME: docs
- */
-
-#ifndef __i1480_wlp_h__
-#define __i1480_wlp_h__
-
-#include <linux/spinlock.h>
-#include <linux/list.h>
-#include <linux/uwb.h>
-#include <linux/if_ether.h>
-#include <asm/byteorder.h>
-
-/* New simplified header format? */
-#undef WLP_HDR_FMT_2 		/* FIXME: rename */
-
-/**
- * Values of the Delivery ID & Type field when PCA or DRP
- *
- * The Delivery ID & Type field in the WLP TX header indicates whether
- * the frame is PCA or DRP. This is done based on the high level bit of
- * this field.
- * We use this constant to test if the traffic is PCA or DRP as follows:
- * if (wlp_tx_hdr_delivery_id_type(wlp_tx_hdr) & WLP_DRP)
- * 	this is DRP traffic
- * else
- * 	this is PCA traffic
- */
-enum deliver_id_type_bit {
-	WLP_DRP = 8,
-};
-
-/**
- * WLP TX header
- *
- * Indicates UWB/WLP-specific transmission parameters for a network
- * packet.
- */
-struct wlp_tx_hdr {
-	/* dword 0 */
-	struct uwb_dev_addr dstaddr;
-	u8                  key_index;
-	u8                  mac_params;
-	/* dword 1 */
-	u8                  phy_params;
-#ifndef WLP_HDR_FMT_2
-	u8                  reserved;
-	__le16              oui01;              /* FIXME: not so sure if __le16 or u8[2] */
-	/* dword 2 */
-	u8                  oui2;               /*        if all LE, it could be merged */
-	__le16              prid;
-#endif
-} __attribute__((packed));
-
-static inline int wlp_tx_hdr_delivery_id_type(const struct wlp_tx_hdr *hdr)
-{
-	return hdr->mac_params & 0x0f;
-}
-
-static inline int wlp_tx_hdr_ack_policy(const struct wlp_tx_hdr *hdr)
-{
-	return (hdr->mac_params >> 4) & 0x07;
-}
-
-static inline int wlp_tx_hdr_rts_cts(const struct wlp_tx_hdr *hdr)
-{
-	return (hdr->mac_params >> 7) & 0x01;
-}
-
-static inline void wlp_tx_hdr_set_delivery_id_type(struct wlp_tx_hdr *hdr, int id)
-{
-	hdr->mac_params = (hdr->mac_params & ~0x0f) | id;
-}
-
-static inline void wlp_tx_hdr_set_ack_policy(struct wlp_tx_hdr *hdr,
-					     enum uwb_ack_pol policy)
-{
-	hdr->mac_params = (hdr->mac_params & ~0x70) | (policy << 4);
-}
-
-static inline void wlp_tx_hdr_set_rts_cts(struct wlp_tx_hdr *hdr, int rts_cts)
-{
-	hdr->mac_params = (hdr->mac_params & ~0x80) | (rts_cts << 7);
-}
-
-static inline enum uwb_phy_rate wlp_tx_hdr_phy_rate(const struct wlp_tx_hdr *hdr)
-{
-	return hdr->phy_params & 0x0f;
-}
-
-static inline int wlp_tx_hdr_tx_power(const struct wlp_tx_hdr *hdr)
-{
-	return (hdr->phy_params >> 4) & 0x0f;
-}
-
-static inline void wlp_tx_hdr_set_phy_rate(struct wlp_tx_hdr *hdr, enum uwb_phy_rate rate)
-{
-	hdr->phy_params = (hdr->phy_params & ~0x0f) | rate;
-}
-
-static inline void wlp_tx_hdr_set_tx_power(struct wlp_tx_hdr *hdr, int pwr)
-{
-	hdr->phy_params = (hdr->phy_params & ~0xf0) | (pwr << 4);
-}
-
-
-/**
- * WLP RX header
- *
- * Provides UWB/WLP-specific transmission data for a received
- * network packet.
- */
-struct wlp_rx_hdr {
-	/* dword 0 */
-	struct uwb_dev_addr dstaddr;
-	struct uwb_dev_addr srcaddr;
-	/* dword 1 */
-	u8 		    LQI;
-	s8		    RSSI;
-	u8		    reserved3;
-#ifndef WLP_HDR_FMT_2
-	u8 		    oui0;
-	/* dword 2 */
-	__le16		    oui12;
-	__le16		    prid;
-#endif
-} __attribute__((packed));
-
-
-/** User configurable options for WLP */
-struct wlp_options {
-	struct mutex mutex; /* access to user configurable options*/
-	struct wlp_tx_hdr def_tx_hdr;	/* default tx hdr */
-	u8 pca_base_priority;
-	u8 bw_alloc; /*index into bw_allocs[] for PCA/DRP reservations*/
-};
-
-
-static inline
-void wlp_options_init(struct wlp_options *options)
-{
-	mutex_init(&options->mutex);
-	wlp_tx_hdr_set_ack_policy(&options->def_tx_hdr, UWB_ACK_INM);
-	wlp_tx_hdr_set_rts_cts(&options->def_tx_hdr, 1);
-	/* FIXME: default to phy caps */
-	wlp_tx_hdr_set_phy_rate(&options->def_tx_hdr, UWB_PHY_RATE_480);
-#ifndef WLP_HDR_FMT_2
-	options->def_tx_hdr.prid = cpu_to_le16(0x0000);
-#endif
-}
-
-
-/* sysfs helpers */
-
-extern ssize_t uwb_pca_base_priority_store(struct wlp_options *,
-					   const char *, size_t);
-extern ssize_t uwb_pca_base_priority_show(const struct wlp_options *, char *);
-extern ssize_t uwb_bw_alloc_store(struct wlp_options *, const char *, size_t);
-extern ssize_t uwb_bw_alloc_show(const struct wlp_options *, char *);
-extern ssize_t uwb_ack_policy_store(struct wlp_options *,
-				    const char *, size_t);
-extern ssize_t uwb_ack_policy_show(const struct wlp_options *, char *);
-extern ssize_t uwb_rts_cts_store(struct wlp_options *, const char *, size_t);
-extern ssize_t uwb_rts_cts_show(const struct wlp_options *, char *);
-extern ssize_t uwb_phy_rate_store(struct wlp_options *, const char *, size_t);
-extern ssize_t uwb_phy_rate_show(const struct wlp_options *, char *);
-
-
-/** Simple bandwidth allocation (temporary and too simple) */
-struct wlp_bw_allocs {
-	const char *name;
-	struct {
-		u8 mask, stream;
-	} tx, rx;
-};
-
-
-#endif /* #ifndef __i1480_wlp_h__ */
diff --git a/drivers/uwb/i1480/i1480u-wlp/Makefile b/drivers/uwb/i1480/i1480u-wlp/Makefile
deleted file mode 100644
index fe6709b8e68b..000000000000
--- a/drivers/uwb/i1480/i1480u-wlp/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-obj-$(CONFIG_UWB_I1480U_WLP) += i1480u-wlp.o
-
-i1480u-wlp-objs :=	\
-	lc.o		\
-	netdev.o	\
-	rx.o		\
-	sysfs.o		\
-	tx.o
diff --git a/drivers/uwb/i1480/i1480u-wlp/i1480u-wlp.h b/drivers/uwb/i1480/i1480u-wlp/i1480u-wlp.h
deleted file mode 100644
index 2e31f536a347..000000000000
--- a/drivers/uwb/i1480/i1480u-wlp/i1480u-wlp.h
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * Intel 1480 Wireless UWB Link USB
- * Header formats, constants, general internal interfaces
- *
- *
- * Copyright (C) 2005-2006 Intel Corporation
- * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.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.
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * This is not an standard interface.
- *
- * FIXME: docs
- *
- * i1480u-wlp is pretty simple: two endpoints, one for tx, one for
- * rx. rx is polled. Network packets (ethernet, whatever) are wrapped
- * in i1480 TX or RX headers (for sending over the air), and these
- * packets are wrapped in UNTD headers (for sending to the WLP UWB
- * controller).
- *
- * UNTD packets (UNTD hdr + i1480 hdr + network packet) packets
- * cannot be bigger than i1480u_MAX_FRG_SIZE. When this happens, the
- * i1480 packet is broken in chunks/packets:
- *
- * UNTD-1st.hdr + i1480.hdr + payload
- * UNTD-next.hdr + payload
- * ...
- * UNTD-last.hdr + payload
- *
- * so that each packet is smaller or equal than i1480u_MAX_FRG_SIZE.
- *
- * All HW structures and bitmaps are little endian, so we need to play
- * ugly tricks when defining bitfields. Hoping for the day GCC
- * implements __attribute__((endian(1234))).
- *
- * FIXME: ROADMAP to the whole implementation
- */
-
-#ifndef __i1480u_wlp_h__
-#define __i1480u_wlp_h__
-
-#include <linux/usb.h>
-#include <linux/netdevice.h>
-#include <linux/uwb.h>		/* struct uwb_rc, struct uwb_notifs_handler */
-#include <linux/wlp.h>
-#include "../i1480-wlp.h"
-
-#undef i1480u_FLOW_CONTROL	/* Enable flow control code */
-
-/**
- * Basic flow control
- */
-enum {
-	i1480u_TX_INFLIGHT_MAX = 1000,
-	i1480u_TX_INFLIGHT_THRESHOLD = 100,
-};
-
-/** Maximum size of a transaction that we can tx/rx */
-enum {
-	/* Maximum packet size computed as follows: max UNTD header (8) +
-	 * i1480 RX header (8) + max Ethernet header and payload (4096) +
-	 * Padding added by skb_reserve (2) to make post Ethernet payload
-	 * start on 16 byte boundary*/
-	i1480u_MAX_RX_PKT_SIZE = 4114,
-	i1480u_MAX_FRG_SIZE = 512,
-	i1480u_RX_BUFS = 9,
-};
-
-
-/**
- * UNTD packet type
- *
- * We need to fragment any payload whose UNTD packet is going to be
- * bigger than i1480u_MAX_FRG_SIZE.
- */
-enum i1480u_pkt_type {
-	i1480u_PKT_FRAG_1ST = 0x1,
-	i1480u_PKT_FRAG_NXT = 0x0,
-	i1480u_PKT_FRAG_LST = 0x2,
-	i1480u_PKT_FRAG_CMP = 0x3
-};
-enum {
-	i1480u_PKT_NONE = 0x4,
-};
-
-/** USB Network Transfer Descriptor - common */
-struct untd_hdr {
-	u8     type;
-	__le16 len;
-} __attribute__((packed));
-
-static inline enum i1480u_pkt_type untd_hdr_type(const struct untd_hdr *hdr)
-{
-	return hdr->type & 0x03;
-}
-
-static inline int untd_hdr_rx_tx(const struct untd_hdr *hdr)
-{
-	return (hdr->type >> 2) & 0x01;
-}
-
-static inline void untd_hdr_set_type(struct untd_hdr *hdr, enum i1480u_pkt_type type)
-{
-	hdr->type = (hdr->type & ~0x03) | type;
-}
-
-static inline void untd_hdr_set_rx_tx(struct untd_hdr *hdr, int rx_tx)
-{
-	hdr->type = (hdr->type & ~0x04) | (rx_tx << 2);
-}
-
-
-/**
- * USB Network Transfer Descriptor - Complete Packet
- *
- * This is for a packet that is smaller (header + payload) than
- * i1480u_MAX_FRG_SIZE.
- *
- * @hdr.total_len is the size of the payload; the payload doesn't
- * count this header nor the padding, but includes the size of i1480
- * header.
- */
-struct untd_hdr_cmp {
-	struct untd_hdr	hdr;
-	u8		padding;
-} __attribute__((packed));
-
-
-/**
- * USB Network Transfer Descriptor - First fragment
- *
- * @hdr.len is the size of the *whole packet* (excluding UNTD
- * headers); @fragment_len is the size of the payload (excluding UNTD
- * headers, but including i1480 headers).
- */
-struct untd_hdr_1st {
-	struct untd_hdr	hdr;
-	__le16		fragment_len;
-	u8		padding[3];
-} __attribute__((packed));
-
-
-/**
- * USB Network Transfer Descriptor - Next / Last [Rest]
- *
- * @hdr.len is the size of the payload, not including headrs.
- */
-struct untd_hdr_rst {
-	struct untd_hdr	hdr;
-	u8		padding;
-} __attribute__((packed));
-
-
-/**
- * Transmission context
- *
- * Wraps all the stuff needed to track a pending/active tx
- * operation.
- */
-struct i1480u_tx {
-	struct list_head list_node;
-	struct i1480u *i1480u;
-	struct urb *urb;
-
-	struct sk_buff *skb;
-	struct wlp_tx_hdr *wlp_tx_hdr;
-
-	void *buf;	/* if NULL, no new buf was used */
-	size_t buf_size;
-};
-
-/**
- * Basic flow control
- *
- * We maintain a basic flow control counter. "count" how many TX URBs are
- * outstanding. Only allow "max"
- * TX URBs to be outstanding. If this value is reached the queue will be
- * stopped. The queue will be restarted when there are
- * "threshold" URBs outstanding.
- * Maintain a counter of how many time the TX queue needed to be restarted
- * due to the "max" being exceeded and the "threshold" reached again. The
- * timestamp "restart_ts" is to keep track from when the counter was last
- * queried (see sysfs handling of file wlp_tx_inflight).
- */
-struct i1480u_tx_inflight {
-	atomic_t count;
-	unsigned long max;
-	unsigned long threshold;
-	unsigned long restart_ts;
-	atomic_t restart_count;
-};
-
-/**
- * Instance of a i1480u WLP interface
- *
- * Keeps references to the USB device that wraps it, as well as it's
- * interface and associated UWB host controller. As well, it also
- * keeps a link to the netdevice for integration into the networking
- * stack.
- * We maintian separate error history for the tx and rx endpoints because
- * the implementation does not rely on locking - having one shared
- * structure between endpoints may cause problems. Adding locking to the
- * implementation will have higher cost than adding a separate structure.
- */
-struct i1480u {
-	struct usb_device *usb_dev;
-	struct usb_interface *usb_iface;
-	struct net_device *net_dev;
-
-	spinlock_t lock;
-
-	/* RX context handling */
-	struct sk_buff *rx_skb;
-	struct uwb_dev_addr rx_srcaddr;
-	size_t rx_untd_pkt_size;
-	struct i1480u_rx_buf {
-		struct i1480u *i1480u;	/* back pointer */
-		struct urb *urb;
-		struct sk_buff *data;	/* i1480u_MAX_RX_PKT_SIZE each */
-	} rx_buf[i1480u_RX_BUFS];	/* N bufs */
-
-	spinlock_t tx_list_lock;	/* TX context */
-	struct list_head tx_list;
-	u8 tx_stream;
-
-	struct stats lqe_stats, rssi_stats;	/* radio statistics */
-
-	/* Options we can set from sysfs */
-	struct wlp_options options;
-	struct uwb_notifs_handler uwb_notifs_handler;
-	struct edc tx_errors;
-	struct edc rx_errors;
-	struct wlp wlp;
-#ifdef i1480u_FLOW_CONTROL
-	struct urb *notif_urb;
-	struct edc notif_edc;		/* error density counter */
-	u8 notif_buffer[1];
-#endif
-	struct i1480u_tx_inflight tx_inflight;
-};
-
-/* Internal interfaces */
-extern void i1480u_rx_cb(struct urb *urb);
-extern int i1480u_rx_setup(struct i1480u *);
-extern void i1480u_rx_release(struct i1480u *);
-extern void i1480u_tx_release(struct i1480u *);
-extern int i1480u_xmit_frame(struct wlp *, struct sk_buff *,
-			     struct uwb_dev_addr *);
-extern void i1480u_stop_queue(struct wlp *);
-extern void i1480u_start_queue(struct wlp *);
-extern int i1480u_sysfs_setup(struct i1480u *);
-extern void i1480u_sysfs_release(struct i1480u *);
-
-/* netdev interface */
-extern int i1480u_open(struct net_device *);
-extern int i1480u_stop(struct net_device *);
-extern netdev_tx_t i1480u_hard_start_xmit(struct sk_buff *,
-						struct net_device *);
-extern void i1480u_tx_timeout(struct net_device *);
-extern int i1480u_set_config(struct net_device *, struct ifmap *);
-extern int i1480u_change_mtu(struct net_device *, int);
-extern void i1480u_uwb_notifs_cb(void *, struct uwb_dev *, enum uwb_notifs);
-
-/* bandwidth allocation callback */
-extern void  i1480u_bw_alloc_cb(struct uwb_rsv *);
-
-/* Sys FS */
-extern struct attribute_group i1480u_wlp_attr_group;
-
-#endif /* #ifndef __i1480u_wlp_h__ */
diff --git a/drivers/uwb/i1480/i1480u-wlp/lc.c b/drivers/uwb/i1480/i1480u-wlp/lc.c
deleted file mode 100644
index def778cf2216..000000000000
--- a/drivers/uwb/i1480/i1480u-wlp/lc.c
+++ /dev/null
@@ -1,424 +0,0 @@
-/*
- * WUSB Wire Adapter: WLP interface
- * Driver for the Linux Network stack.
- *
- * Copyright (C) 2005-2006 Intel Corporation
- * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.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.
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * FIXME: docs
- *
- * This implements a very simple network driver for the WLP USB
- * device that is associated to a UWB (Ultra Wide Band) host.
- *
- * This is seen as an interface of a composite device. Once the UWB
- * host has an association to another WLP capable device, the
- * networking interface (aka WLP) can start to send packets back and
- * forth.
- *
- * Limitations:
- *
- *  - Hand cranked; can't ifup the interface until there is an association
- *
- *  - BW allocation very simplistic [see i1480u_mas_set() and callees].
- *
- *
- * ROADMAP:
- *
- *   ENTRY POINTS (driver model):
- *
- *     i1480u_driver_{exit,init}(): initialization of the driver.
- *
- *     i1480u_probe(): called by the driver code when a device
- *                     matching 'i1480u_id_table' is connected.
- *
- *                     This allocs a netdev instance, inits with
- *                     i1480u_add(), then registers_netdev().
- *         i1480u_init()
- *         i1480u_add()
- *
- *     i1480u_disconnect(): device has been disconnected/module
- *                          is being removed.
- *         i1480u_rm()
- */
-#include <linux/gfp.h>
-#include <linux/if_arp.h>
-#include <linux/etherdevice.h>
-
-#include "i1480u-wlp.h"
-
-
-
-static inline
-void i1480u_init(struct i1480u *i1480u)
-{
-	/* nothing so far... doesn't it suck? */
-	spin_lock_init(&i1480u->lock);
-	INIT_LIST_HEAD(&i1480u->tx_list);
-	spin_lock_init(&i1480u->tx_list_lock);
-	wlp_options_init(&i1480u->options);
-	edc_init(&i1480u->tx_errors);
-	edc_init(&i1480u->rx_errors);
-#ifdef i1480u_FLOW_CONTROL
-	edc_init(&i1480u->notif_edc);
-#endif
-	stats_init(&i1480u->lqe_stats);
-	stats_init(&i1480u->rssi_stats);
-	wlp_init(&i1480u->wlp);
-}
-
-/**
- * Fill WLP device information structure
- *
- * The structure will contain a few character arrays, each ending with a
- * null terminated string. Each string has to fit (excluding terminating
- * character) into a specified range obtained from the WLP substack.
- *
- * It is still not clear exactly how this device information should be
- * obtained. Until we find out we use the USB device descriptor as backup, some
- * information elements have intuitive mappings, other not.
- */
-static
-void i1480u_fill_device_info(struct wlp *wlp, struct wlp_device_info *dev_info)
-{
-	struct i1480u *i1480u = container_of(wlp, struct i1480u, wlp);
-	struct usb_device *usb_dev = i1480u->usb_dev;
-	/* Treat device name and model name the same */
-	if (usb_dev->descriptor.iProduct) {
-		usb_string(usb_dev, usb_dev->descriptor.iProduct,
-			   dev_info->name, sizeof(dev_info->name));
-		usb_string(usb_dev, usb_dev->descriptor.iProduct,
-			   dev_info->model_name, sizeof(dev_info->model_name));
-	}
-	if (usb_dev->descriptor.iManufacturer)
-		usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
-			   dev_info->manufacturer,
-			   sizeof(dev_info->manufacturer));
-	scnprintf(dev_info->model_nr, sizeof(dev_info->model_nr), "%04x",
-		  __le16_to_cpu(usb_dev->descriptor.bcdDevice));
-	if (usb_dev->descriptor.iSerialNumber)
-		usb_string(usb_dev, usb_dev->descriptor.iSerialNumber,
-			   dev_info->serial, sizeof(dev_info->serial));
-	/* FIXME: where should we obtain category? */
-	dev_info->prim_dev_type.category = cpu_to_le16(WLP_DEV_CAT_OTHER);
-	/* FIXME: Complete OUI and OUIsubdiv attributes */
-}
-
-#ifdef i1480u_FLOW_CONTROL
-/**
- * Callback for the notification endpoint
- *
- * This mostly controls the xon/xoff protocol. In case of hard error,
- * we stop the queue. If not, we always retry.
- */
-static
-void i1480u_notif_cb(struct urb *urb, struct pt_regs *regs)
-{
-	struct i1480u *i1480u = urb->context;
-	struct usb_interface *usb_iface = i1480u->usb_iface;
-	struct device *dev = &usb_iface->dev;
-	int result;
-
-	switch (urb->status) {
-	case 0:				/* Got valid data, do xon/xoff */
-		switch (i1480u->notif_buffer[0]) {
-		case 'N':
-			dev_err(dev, "XOFF STOPPING queue at %lu\n", jiffies);
-			netif_stop_queue(i1480u->net_dev);
-			break;
-		case 'A':
-			dev_err(dev, "XON STARTING queue at %lu\n", jiffies);
-			netif_start_queue(i1480u->net_dev);
-			break;
-		default:
-			dev_err(dev, "NEP: unknown data 0x%02hhx\n",
-				i1480u->notif_buffer[0]);
-		}
-		break;
-	case -ECONNRESET:		/* Controlled situation ... */
-	case -ENOENT:			/* we killed the URB... */
-		dev_err(dev, "NEP: URB reset/noent %d\n", urb->status);
-		goto error;
-	case -ESHUTDOWN:		/* going away! */
-		dev_err(dev, "NEP: URB down %d\n", urb->status);
-		goto error;
-	default:			/* Retry unless it gets ugly */
-		if (edc_inc(&i1480u->notif_edc, EDC_MAX_ERRORS,
-			    EDC_ERROR_TIMEFRAME)) {
-			dev_err(dev, "NEP: URB max acceptable errors "
-				"exceeded; resetting device\n");
-			goto error_reset;
-		}
-		dev_err(dev, "NEP: URB error %d\n", urb->status);
-		break;
-	}
-	result = usb_submit_urb(urb, GFP_ATOMIC);
-	if (result < 0) {
-		dev_err(dev, "NEP: Can't resubmit URB: %d; resetting device\n",
-			result);
-		goto error_reset;
-	}
-	return;
-
-error_reset:
-	wlp_reset_all(&i1480-wlp);
-error:
-	netif_stop_queue(i1480u->net_dev);
-	return;
-}
-#endif
-
-static const struct net_device_ops i1480u_netdev_ops = {
-	.ndo_open	= i1480u_open,
-	.ndo_stop 	= i1480u_stop,
-	.ndo_start_xmit = i1480u_hard_start_xmit,
-	.ndo_tx_timeout = i1480u_tx_timeout,
-	.ndo_set_config = i1480u_set_config,
-	.ndo_change_mtu = i1480u_change_mtu,
-};
-
-static
-int i1480u_add(struct i1480u *i1480u, struct usb_interface *iface)
-{
-	int result = -ENODEV;
-	struct wlp *wlp = &i1480u->wlp;
-	struct usb_device *usb_dev = interface_to_usbdev(iface);
-	struct net_device *net_dev = i1480u->net_dev;
-	struct uwb_rc *rc;
-	struct uwb_dev *uwb_dev;
-#ifdef i1480u_FLOW_CONTROL
-	struct usb_endpoint_descriptor *epd;
-#endif
-
-	i1480u->usb_dev = usb_get_dev(usb_dev);
-	i1480u->usb_iface = iface;
-	rc = uwb_rc_get_by_grandpa(&i1480u->usb_dev->dev);
-	if (rc == NULL) {
-		dev_err(&iface->dev, "Cannot get associated UWB Radio "
-			"Controller\n");
-		goto out;
-	}
-	wlp->xmit_frame = i1480u_xmit_frame;
-	wlp->fill_device_info = i1480u_fill_device_info;
-	wlp->stop_queue = i1480u_stop_queue;
-	wlp->start_queue = i1480u_start_queue;
-	result = wlp_setup(wlp, rc, net_dev);
-	if (result < 0) {
-		dev_err(&iface->dev, "Cannot setup WLP\n");
-		goto error_wlp_setup;
-	}
-	result = 0;
-	ether_setup(net_dev);			/* make it an etherdevice */
-	uwb_dev = &rc->uwb_dev;
-	/* FIXME: hookup address change notifications? */
-
-	memcpy(net_dev->dev_addr, uwb_dev->mac_addr.data,
-	       sizeof(net_dev->dev_addr));
-
-	net_dev->hard_header_len = sizeof(struct untd_hdr_cmp)
-		+ sizeof(struct wlp_tx_hdr)
-		+ WLP_DATA_HLEN
-		+ ETH_HLEN;
-	net_dev->mtu = 3500;
-	net_dev->tx_queue_len = 20;		/* FIXME: maybe use 1000? */
-
-/*	net_dev->flags &= ~IFF_BROADCAST;	FIXME: BUG in firmware */
-	/* FIXME: multicast disabled */
-	net_dev->flags &= ~IFF_MULTICAST;
-	net_dev->features &= ~NETIF_F_SG;
-	net_dev->features &= ~NETIF_F_FRAGLIST;
-	/* All NETIF_F_*_CSUM disabled */
-	net_dev->features |= NETIF_F_HIGHDMA;
-	net_dev->watchdog_timeo = 5*HZ;		/* FIXME: a better default? */
-
-	net_dev->netdev_ops = &i1480u_netdev_ops;
-
-#ifdef i1480u_FLOW_CONTROL
-	/* Notification endpoint setup (submitted when we open the device) */
-	i1480u->notif_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (i1480u->notif_urb == NULL) {
-		dev_err(&iface->dev, "Unable to allocate notification URB\n");
-		result = -ENOMEM;
-		goto error_urb_alloc;
-	}
-	epd = &iface->cur_altsetting->endpoint[0].desc;
-	usb_fill_int_urb(i1480u->notif_urb, usb_dev,
-			 usb_rcvintpipe(usb_dev, epd->bEndpointAddress),
-			 i1480u->notif_buffer, sizeof(i1480u->notif_buffer),
-			 i1480u_notif_cb, i1480u, epd->bInterval);
-
-#endif
-
-	i1480u->tx_inflight.max = i1480u_TX_INFLIGHT_MAX;
-	i1480u->tx_inflight.threshold = i1480u_TX_INFLIGHT_THRESHOLD;
-	i1480u->tx_inflight.restart_ts = jiffies;
-	usb_set_intfdata(iface, i1480u);
-	return result;
-
-#ifdef i1480u_FLOW_CONTROL
-error_urb_alloc:
-#endif
-	wlp_remove(wlp);
-error_wlp_setup:
-	uwb_rc_put(rc);
-out:
-	usb_put_dev(i1480u->usb_dev);
-	return result;
-}
-
-static void i1480u_rm(struct i1480u *i1480u)
-{
-	struct uwb_rc *rc = i1480u->wlp.rc;
-	usb_set_intfdata(i1480u->usb_iface, NULL);
-#ifdef i1480u_FLOW_CONTROL
-	usb_kill_urb(i1480u->notif_urb);
-	usb_free_urb(i1480u->notif_urb);
-#endif
-	wlp_remove(&i1480u->wlp);
-	uwb_rc_put(rc);
-	usb_put_dev(i1480u->usb_dev);
-}
-
-/** Just setup @net_dev's i1480u private data */
-static void i1480u_netdev_setup(struct net_device *net_dev)
-{
-	struct i1480u *i1480u = netdev_priv(net_dev);
-	/* Initialize @i1480u */
-	memset(i1480u, 0, sizeof(*i1480u));
-	i1480u_init(i1480u);
-}
-
-/**
- * Probe a i1480u interface and register it
- *
- * @iface:   USB interface to link to
- * @id:      USB class/subclass/protocol id
- * @returns: 0 if ok, < 0 errno code on error.
- *
- * Does basic housekeeping stuff and then allocs a netdev with space
- * for the i1480u  data. Initializes, registers in i1480u, registers in
- * netdev, ready to go.
- */
-static int i1480u_probe(struct usb_interface *iface,
-			const struct usb_device_id *id)
-{
-	int result;
-	struct net_device *net_dev;
-	struct device *dev = &iface->dev;
-	struct i1480u *i1480u;
-
-	/* Allocate instance [calls i1480u_netdev_setup() on it] */
-	result = -ENOMEM;
-	net_dev = alloc_netdev(sizeof(*i1480u), "wlp%d", i1480u_netdev_setup);
-	if (net_dev == NULL) {
-		dev_err(dev, "no memory for network device instance\n");
-		goto error_alloc_netdev;
-	}
-	SET_NETDEV_DEV(net_dev, dev);
-	i1480u = netdev_priv(net_dev);
-	i1480u->net_dev = net_dev;
-	result = i1480u_add(i1480u, iface);	/* Now setup all the wlp stuff */
-	if (result < 0) {
-		dev_err(dev, "cannot add i1480u device: %d\n", result);
-		goto error_i1480u_add;
-	}
-	result = register_netdev(net_dev);	/* Okey dokey, bring it up */
-	if (result < 0) {
-		dev_err(dev, "cannot register network device: %d\n", result);
-		goto error_register_netdev;
-	}
-	i1480u_sysfs_setup(i1480u);
-	if (result < 0)