irda: move drivers/net/irda to drivers/staging/irda/drivers

Move the irda drivers from drivers/net/irda/ to
drivers/staging/irda/drivers as they will be deleted in a future kernel
release.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 1914 deletions

diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
deleted file mode 100644
index 723e49bc4baa..000000000000
--- a/drivers/net/irda/irda-usb.c
+++ /dev/null
@@ -1,1914 +0,0 @@
-/*****************************************************************************
- *
- * Filename:      irda-usb.c
- * Version:       0.10
- * Description:   IrDA-USB Driver
- * Status:        Experimental 
- * Author:        Dag Brattli <dag@brattli.net>
- *
- *	Copyright (C) 2000, Roman Weissgaerber <weissg@vienna.at>
- *      Copyright (C) 2001, Dag Brattli <dag@brattli.net>
- *      Copyright (C) 2001, Jean Tourrilhes <jt@hpl.hp.com>
- *      Copyright (C) 2004, SigmaTel, Inc. <irquality@sigmatel.com>
- *      Copyright (C) 2005, Milan Beno <beno@pobox.sk>
- *      Copyright (C) 2006, Nick Fedchik <nick@fedchik.org.ua>
- *          
- *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *****************************************************************************/
-
-/*
- *			    IMPORTANT NOTE
- *			    --------------
- *
- * As of kernel 2.5.20, this is the state of compliance and testing of
- * this driver (irda-usb) with regards to the USB low level drivers...
- *
- * This driver has been tested SUCCESSFULLY with the following drivers :
- *	o usb-uhci-hcd	(For Intel/Via USB controllers)
- *	o uhci-hcd	(Alternate/JE driver for Intel/Via USB controllers)
- *	o ohci-hcd	(For other USB controllers)
- *
- * This driver has NOT been tested with the following drivers :
- *	o ehci-hcd	(USB 2.0 controllers)
- *
- * Note that all HCD drivers do URB_ZERO_PACKET and timeout properly,
- * so we don't have to worry about that anymore.
- * One common problem is the failure to set the address on the dongle,
- * but this happens before the driver gets loaded...
- *
- * Jean II
- */
-
-/*------------------------------------------------------------------*/
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/slab.h>
-#include <linux/rtnetlink.h>
-#include <linux/usb.h>
-#include <linux/firmware.h>
-
-#include "irda-usb.h"
-
-/*------------------------------------------------------------------*/
-
-static int qos_mtt_bits = 0;
-
-/* These are the currently known IrDA USB dongles. Add new dongles here */
-static const struct usb_device_id dongles[] = {
-	/* ACTiSYS Corp.,  ACT-IR2000U FIR-USB Adapter */
-	{ USB_DEVICE(0x9c4, 0x011), .driver_info = IUC_SPEED_BUG | IUC_NO_WINDOW },
-	/* Look like ACTiSYS, Report : IBM Corp., IBM UltraPort IrDA */
-	{ USB_DEVICE(0x4428, 0x012), .driver_info = IUC_SPEED_BUG | IUC_NO_WINDOW },
-	/* KC Technology Inc.,  KC-180 USB IrDA Device */
-	{ USB_DEVICE(0x50f, 0x180), .driver_info = IUC_SPEED_BUG | IUC_NO_WINDOW },
-	/* Extended Systems, Inc.,  XTNDAccess IrDA USB (ESI-9685) */
-	{ USB_DEVICE(0x8e9, 0x100), .driver_info = IUC_SPEED_BUG | IUC_NO_WINDOW },
-	/* SigmaTel STIR4210/4220/4116 USB IrDA (VFIR) Bridge */
-	{ USB_DEVICE(0x66f, 0x4210), .driver_info = IUC_STIR421X | IUC_SPEED_BUG },
-	{ USB_DEVICE(0x66f, 0x4220), .driver_info = IUC_STIR421X | IUC_SPEED_BUG },
-	{ USB_DEVICE(0x66f, 0x4116), .driver_info = IUC_STIR421X | IUC_SPEED_BUG },
-	{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS |
-	  USB_DEVICE_ID_MATCH_INT_SUBCLASS,
-	  .bInterfaceClass = USB_CLASS_APP_SPEC,
-	  .bInterfaceSubClass = USB_CLASS_IRDA,
-	  .driver_info = IUC_DEFAULT, },
-	{ }, /* The end */
-};
-
-/*
- * Important note :
- * Devices based on the SigmaTel chipset (0x66f, 0x4200) are not designed
- * using the "USB-IrDA specification" (yes, there exist such a thing), and
- * therefore not supported by this driver (don't add them above).
- * There is a Linux driver, stir4200, that support those USB devices.
- * Jean II
- */
-
-MODULE_DEVICE_TABLE(usb, dongles);
-
-/*------------------------------------------------------------------*/
-
-static void irda_usb_init_qos(struct irda_usb_cb *self) ;
-static struct irda_class_desc *irda_usb_find_class_desc(struct usb_interface *intf);
-static void irda_usb_disconnect(struct usb_interface *intf);
-static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self);
-static netdev_tx_t irda_usb_hard_xmit(struct sk_buff *skb,
-					    struct net_device *dev);
-static int irda_usb_open(struct irda_usb_cb *self);
-static void irda_usb_close(struct irda_usb_cb *self);
-static void speed_bulk_callback(struct urb *urb);
-static void write_bulk_callback(struct urb *urb);
-static void irda_usb_receive(struct urb *urb);
-static void irda_usb_rx_defer_expired(unsigned long data);
-static int irda_usb_net_open(struct net_device *dev);
-static int irda_usb_net_close(struct net_device *dev);
-static int irda_usb_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static void irda_usb_net_timeout(struct net_device *dev);
-
-/************************ TRANSMIT ROUTINES ************************/
-/*
- * Receive packets from the IrDA stack and send them on the USB pipe.
- * Handle speed change, timeout and lot's of ugliness...
- */
-
-/*------------------------------------------------------------------*/
-/*
- * Function irda_usb_build_header(self, skb, header)
- *
- *   Builds USB-IrDA outbound header
- *
- * When we send an IrDA frame over an USB pipe, we add to it a 1 byte
- * header. This function create this header with the proper values.
- *
- * Important note : the USB-IrDA spec 1.0 say very clearly in chapter 5.4.2.2
- * that the setting of the link speed and xbof number in this outbound header
- * should be applied *AFTER* the frame has been sent.
- * Unfortunately, some devices are not compliant with that... It seems that
- * reading the spec is far too difficult...
- * Jean II
- */
-static void irda_usb_build_header(struct irda_usb_cb *self,
-				  __u8 *header,
-				  int	force)
-{
-	/* Here we check if we have an STIR421x chip,
-	 * and if either speed or xbofs (or both) needs
-	 * to be changed.
-	 */
-	if (self->capability & IUC_STIR421X &&
-	    ((self->new_speed != -1) || (self->new_xbofs != -1))) {
-
-		/* With STIR421x, speed and xBOFs must be set at the same
-		 * time, even if only one of them changes.
-		 */
-		if (self->new_speed == -1)
-			self->new_speed = self->speed ;
-
-		if (self->new_xbofs == -1)
-			self->new_xbofs = self->xbofs ;
-	}
-
-	/* Set the link speed */
-	if (self->new_speed != -1) {
-		/* Hum... Ugly hack :-(
-		 * Some device are not compliant with the spec and change
-		 * parameters *before* sending the frame. - Jean II
-		 */
-		if ((self->capability & IUC_SPEED_BUG) &&
-		    (!force) && (self->speed != -1)) {
-			/* No speed and xbofs change here
-			 * (we'll do it later in the write callback) */
-			pr_debug("%s(), not changing speed yet\n", __func__);
-			*header = 0;
-			return;
-		}
-
-		pr_debug("%s(), changing speed to %d\n",
-			 __func__, self->new_speed);
-		self->speed = self->new_speed;
-		/* We will do ` self->new_speed = -1; ' in the completion
-		 * handler just in case the current URB fail - Jean II */
-
-		switch (self->speed) {
-		case 2400:
-		        *header = SPEED_2400;
-			break;
-		default:
-		case 9600:
-			*header = SPEED_9600;
-			break;
-		case 19200:
-			*header = SPEED_19200;
-			break;
-		case 38400:
-			*header = SPEED_38400;
-			break;
-		case 57600:
-		        *header = SPEED_57600;
-			break;
-		case 115200:
-		        *header = SPEED_115200;
-			break;
-		case 576000:
-		        *header = SPEED_576000;
-			break;
-		case 1152000:
-		        *header = SPEED_1152000;
-			break;
-		case 4000000:
-		        *header = SPEED_4000000;
-			self->new_xbofs = 0;
-			break;
-		case 16000000:
-			*header = SPEED_16000000;
-  			self->new_xbofs = 0;
-  			break;
-  		}
-	} else
-		/* No change */
-		*header = 0;
-	
-	/* Set the negotiated additional XBOFS */
-	if (self->new_xbofs != -1) {
-		pr_debug("%s(), changing xbofs to %d\n",
-			 __func__, self->new_xbofs);
-		self->xbofs = self->new_xbofs;
-		/* We will do ` self->new_xbofs = -1; ' in the completion
-		 * handler just in case the current URB fail - Jean II */
-
-		switch (self->xbofs) {
-		case 48:
-			*header |= 0x10;
-			break;
-		case 28:
-		case 24:	/* USB spec 1.0 says 24 */
-			*header |= 0x20;
-			break;
-		default:
-		case 12:
-			*header |= 0x30;
-			break;
-		case 5: /* Bug in IrLAP spec? (should be 6) */
-		case 6:
-			*header |= 0x40;
-			break;
-		case 3:
-			*header |= 0x50;
-			break;
-		case 2:
-			*header |= 0x60;
-			break;
-		case 1:
-			*header |= 0x70;
-			break;
-		case 0:
-			*header |= 0x80;
-			break;
-		}
-	}
-}
-
-/*
-*   calculate turnaround time for SigmaTel header
-*/
-static __u8 get_turnaround_time(struct sk_buff *skb)
-{
-	int turnaround_time = irda_get_mtt(skb);
-
-	if ( turnaround_time == 0 )
-		return 0;
-	else if ( turnaround_time <= 10 )
-		return 1;
-	else if ( turnaround_time <= 50 )
-		return 2;
-	else if ( turnaround_time <= 100 )
-		return 3;
-	else if ( turnaround_time <= 500 )
-		return 4;
-	else if ( turnaround_time <= 1000 )
-		return 5;
-	else if ( turnaround_time <= 5000 )
-		return 6;
-	else
-		return 7;
-}
-
-
-/*------------------------------------------------------------------*/
-/*
- * Send a command to change the speed of the dongle
- * Need to be called with spinlock on.
- */
-static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self)
-{
-	__u8 *frame;
-	struct urb *urb;
-	int ret;
-
-	pr_debug("%s(), speed=%d, xbofs=%d\n", __func__,
-		 self->new_speed, self->new_xbofs);
-
-	/* Grab the speed URB */
-	urb = self->speed_urb;
-	if (urb->status != 0) {
-		net_warn_ratelimited("%s(), URB still in use!\n", __func__);
-		return;
-	}
-
-	/* Allocate the fake frame */
-	frame = self->speed_buff;
-
-	/* Set the new speed and xbofs in this fake frame */
-	irda_usb_build_header(self, frame, 1);
-
-	if (self->capability & IUC_STIR421X) {
-		if (frame[0] == 0) return ; // do nothing if no change
-		frame[1] = 0; // other parameters don't change here
-		frame[2] = 0;
-	}
-
-	/* Submit the 0 length IrDA frame to trigger new speed settings */
-        usb_fill_bulk_urb(urb, self->usbdev,
-		      usb_sndbulkpipe(self->usbdev, self->bulk_out_ep),
-                      frame, IRDA_USB_SPEED_MTU,
-                      speed_bulk_callback, self);
-	urb->transfer_buffer_length = self->header_length;
-	urb->transfer_flags = 0;
-
-	/* Irq disabled -> GFP_ATOMIC */
-	if ((ret = usb_submit_urb(urb, GFP_ATOMIC))) {
-		net_warn_ratelimited("%s(), failed Speed URB\n", __func__);
-	}
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Speed URB callback
- * Now, we can only get called for the speed URB.
- */
-static void speed_bulk_callback(struct urb *urb)
-{
-	struct irda_usb_cb *self = urb->context;
-	
-	/* We should always have a context */
-	IRDA_ASSERT(self != NULL, return;);
-	/* We should always be called for the speed URB */
-	IRDA_ASSERT(urb == self->speed_urb, return;);
-
-	/* Check for timeout and other USB nasties */
-	if (urb->status != 0) {
-		/* I get a lot of -ECONNABORTED = -103 here - Jean II */
-		pr_debug("%s(), URB complete status %d, transfer_flags 0x%04X\n",
-			 __func__, urb->status, urb->transfer_flags);
-
-		/* Don't do anything here, that might confuse the USB layer.
-		 * Instead, we will wait for irda_usb_net_timeout(), the
-		 * network layer watchdog, to fix the situation.
-		 * Jean II */
-		/* A reset of the dongle might be welcomed here - Jean II */
-		return;
-	}
-
-	/* urb is now available */
-	//urb->status = 0; -> tested above
-
-	/* New speed and xbof is now committed in hardware */
-	self->new_speed = -1;
-	self->new_xbofs = -1;
-
-	/* Allow the stack to send more packets */
-	netif_wake_queue(self->netdev);
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Send an IrDA frame to the USB dongle (for transmission)
- */
-static netdev_tx_t irda_usb_hard_xmit(struct sk_buff *skb,
-					    struct net_device *netdev)
-{
-	struct irda_usb_cb *self = netdev_priv(netdev);
-	struct urb *urb = self->tx_urb;
-	unsigned long flags;
-	s32 speed;
-	s16 xbofs;
-	int res, mtt;
-
-	pr_debug("%s() on %s\n", __func__, netdev->name);
-
-	netif_stop_queue(netdev);
-
-	/* Protect us from USB callbacks, net watchdog and else. */
-	spin_lock_irqsave(&self->lock, flags);
-
-	/* Check if the device is still there.
-	 * We need to check self->present under the spinlock because
-	 * of irda_usb_disconnect() is synchronous - Jean II */
-	if (!self->present) {
-		pr_debug("%s(), Device is gone...\n", __func__);
-		goto drop;
-	}
-
-	/* Check if we need to change the number of xbofs */
-        xbofs = irda_get_next_xbofs(skb);
-        if ((xbofs != self->xbofs) && (xbofs != -1)) {
-		self->new_xbofs = xbofs;
-	}
-
-        /* Check if we need to change the speed */
-	speed = irda_get_next_speed(skb);
-	if ((speed != self->speed) && (speed != -1)) {
-		/* Set the desired speed */
-		self->new_speed = speed;
-
-		/* Check for empty frame */
-		if (!skb->len) {
-			/* IrLAP send us an empty frame to make us change the
-			 * speed. Changing speed with the USB adapter is in
-			 * fact sending an empty frame to the adapter, so we
-			 * could just let the present function do its job.
-			 * However, we would wait for min turn time,
-			 * do an extra memcpy and increment packet counters...
-			 * Jean II */
-			irda_usb_change_speed_xbofs(self);
-			netif_trans_update(netdev);
-			/* Will netif_wake_queue() in callback */
-			goto drop;
-		}
-	}
-
-	if (urb->status != 0) {
-		net_warn_ratelimited("%s(), URB still in use!\n", __func__);
-		goto drop;
-	}
-
-	skb_copy_from_linear_data(skb, self->tx_buff + self->header_length, skb->len);
-
-	/* Change setting for next frame */
-	if (self->capability & IUC_STIR421X) {
-		__u8 turnaround_time;
-		__u8* frame = self->tx_buff;
-		turnaround_time = get_turnaround_time( skb );
-		irda_usb_build_header(self, frame, 0);
-		frame[2] = turnaround_time;
-		if ((skb->len != 0) &&
-		    ((skb->len % 128) == 0) &&
-		    ((skb->len % 512) != 0)) {
-			/* add extra byte for special SigmaTel feature */
-			frame[1] = 1;
-			skb_put(skb, 1);
-		} else {
-			frame[1] = 0;
-		}
-	} else {
-		irda_usb_build_header(self, self->tx_buff, 0);
-	}
-
-	/* FIXME: Make macro out of this one */
-	((struct irda_skb_cb *)skb->cb)->context = self;
-
-	usb_fill_bulk_urb(urb, self->usbdev,
-		      usb_sndbulkpipe(self->usbdev, self->bulk_out_ep),
-                      self->tx_buff, skb->len + self->header_length,
-                      write_bulk_callback, skb);
-
-	/* This flag (URB_ZERO_PACKET) indicates that what we send is not
-	 * a continuous stream of data but separate packets.
-	 * In this case, the USB layer will insert an empty USB frame (TD)
-	 * after each of our packets that is exact multiple of the frame size.
-	 * This is how the dongle will detect the end of packet - Jean II */
-	urb->transfer_flags = URB_ZERO_PACKET;
-
-	/* Generate min turn time. FIXME: can we do better than this? */
-	/* Trying to a turnaround time at this level is trying to measure
-	 * processor clock cycle with a wrist-watch, approximate at best...
-	 *
-	 * What we know is the last time we received a frame over USB.
-	 * Due to latency over USB that depend on the USB load, we don't
-	 * know when this frame was received over IrDA (a few ms before ?)
-	 * Then, same story for our outgoing frame...
-	 *
-	 * In theory, the USB dongle is supposed to handle the turnaround
-	 * by itself (spec 1.0, chater 4, page 6). Who knows ??? That's
-	 * why this code is enabled only for dongles that doesn't meet
-	 * the spec.
-	 * Jean II */
-	if (self->capability & IUC_NO_TURN) {
-		mtt = irda_get_mtt(skb);
-		if (mtt) {
-			int diff;
-			diff = ktime_us_delta(ktime_get(), self->stamp);
-#ifdef IU_USB_MIN_RTT
-			/* Factor in USB delays -> Get rid of udelay() that
-			 * would be lost in the noise - Jean II */
-			diff += IU_USB_MIN_RTT;
-#endif /* IU_USB_MIN_RTT */
-
-		        /* Check if the mtt is larger than the time we have
-			 * already used by all the protocol processing
-			 */
-			if (mtt > diff) {
-				mtt -= diff;
-				if (mtt > 1000)
-					mdelay(mtt/1000);
-				else
-					udelay(mtt);
-			}
-		}
-	}
-	
-	/* Ask USB to send the packet - Irq disabled -> GFP_ATOMIC */
-	if ((res = usb_submit_urb(urb, GFP_ATOMIC))) {
-		net_warn_ratelimited("%s(), failed Tx URB\n", __func__);
-		netdev->stats.tx_errors++;
-		/* Let USB recover : We will catch that in the watchdog */
-		/*netif_start_queue(netdev);*/
-	} else {
-		/* Increment packet stats */
-		netdev->stats.tx_packets++;
-                netdev->stats.tx_bytes += skb->len;
-		
-		netif_trans_update(netdev);
-	}
-	spin_unlock_irqrestore(&self->lock, flags);
-	
-	return NETDEV_TX_OK;
-
-drop:
-	/* Drop silently the skb and exit */
-	dev_kfree_skb(skb);
-	spin_unlock_irqrestore(&self->lock, flags);
-	return NETDEV_TX_OK;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Note : this function will be called only for tx_urb...
- */
-static void write_bulk_callback(struct urb *urb)
-{
-	unsigned long flags;
-	struct sk_buff *skb = urb->context;
-	struct irda_usb_cb *self = ((struct irda_skb_cb *) skb->cb)->context;
-	
-	/* We should always have a context */
-	IRDA_ASSERT(self != NULL, return;);
-	/* We should always be called for the speed URB */
-	IRDA_ASSERT(urb == self->tx_urb, return;);
-
-	/* Free up the skb */
-	dev_kfree_skb_any(skb);
-	urb->context = NULL;
-
-	/* Check for timeout and other USB nasties */
-	if (urb->status != 0) {
-		/* I get a lot of -ECONNABORTED = -103 here - Jean II */
-		pr_debug("%s(), URB complete status %d, transfer_flags 0x%04X\n",
-			 __func__, urb->status, urb->transfer_flags);
-
-		/* Don't do anything here, that might confuse the USB layer,
-		 * and we could go in recursion and blow the kernel stack...
-		 * Instead, we will wait for irda_usb_net_timeout(), the
-		 * network layer watchdog, to fix the situation.
-		 * Jean II */
-		/* A reset of the dongle might be welcomed here - Jean II */
-		return;
-	}
-
-	/* urb is now available */
-	//urb->status = 0; -> tested above
-
-	/* Make sure we read self->present properly */
-	spin_lock_irqsave(&self->lock, flags);
-
-	/* If the network is closed, stop everything */
-	if ((!self->netopen) || (!self->present)) {
-		pr_debug("%s(), Network is gone...\n", __func__);
-		spin_unlock_irqrestore(&self->lock, flags);
-		return;
-	}
-
-	/* If changes to speed or xbofs is pending... */
-	if ((self->new_speed != -1) || (self->new_xbofs != -1)) {
-		if ((self->new_speed != self->speed) ||
-		    (self->new_xbofs != self->xbofs)) {
-			/* We haven't changed speed yet (because of
-			 * IUC_SPEED_BUG), so do it now - Jean II */
-			pr_debug("%s(), Changing speed now...\n", __func__);
-			irda_usb_change_speed_xbofs(self);
-		} else {
-			/* New speed and xbof is now committed in hardware */
-			self->new_speed = -1;
-			self->new_xbofs = -1;
-			/* Done, waiting for next packet */
-			netif_wake_queue(self->netdev);
-		}
-	} else {
-		/* Otherwise, allow the stack to send more packets */
-		netif_wake_queue(self->netdev);
-	}
-	spin_unlock_irqrestore(&self->lock, flags);
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Watchdog timer from the network layer.
- * After a predetermined timeout, if we don't give confirmation that
- * the packet has been sent (i.e. no call to netif_wake_queue()),
- * the network layer will call this function.
- * Note that URB that we submit have also a timeout. When the URB timeout
- * expire, the normal URB callback is called (write_bulk_callback()).
- */
-static void irda_usb_net_timeout(struct net_device *netdev)
-{
-	unsigned long flags;
-	struct irda_usb_cb *self = netdev_priv(netdev);
-	struct urb *urb;
-	int	done = 0;	/* If we have made any progress */
-
-	pr_debug("%s(), Network layer thinks we timed out!\n", __func__);
-	IRDA_ASSERT(self != NULL, return;);
-
-	/* Protect us from USB callbacks, net Tx and else. */
-	spin_lock_irqsave(&self->lock, flags);
-
-	/* self->present *MUST* be read under spinlock */
-	if (!self->present) {
-		net_warn_ratelimited("%s(), device not present!\n", __func__);
-		netif_stop_queue(netdev);
-		spin_unlock_irqrestore(&self->lock, flags);
-		return;
-	}
-
-	/* Check speed URB */
-	urb = self->speed_urb;
-	if (urb->status != 0) {
-		pr_debug("%s: Speed change timed out, urb->status=%d, urb->transfer_flags=0x%04X\n",
-			 netdev->name, urb->status, urb->transfer_flags);
-
-		switch (urb->status) {
-		case -EINPROGRESS:
-			usb_unlink_urb(urb);
-			/* Note : above will  *NOT* call netif_wake_queue()
-			 * in completion handler, we will come back here.
-			 * Jean II */
-			done = 1;
-			break;
-		case -ECONNRESET:
-		case -ENOENT:			/* urb unlinked by us */
-		default:			/* ??? - Play safe */
-			urb->status = 0;
-			netif_wake_queue(self->netdev);
-			done = 1;
-			break;
-		}
-	}
-
-	/* Check Tx URB */
-	urb = self->tx_urb;
-	if (urb->status != 0) {
-		struct sk_buff *skb = urb->context;
-
-		pr_debug("%s: Tx timed out, urb->status=%d, urb->transfer_flags=0x%04X\n",
-			 netdev->name, urb->status, urb->transfer_flags);
-
-		/* Increase error count */
-		netdev->stats.tx_errors++;
-
-#ifdef IU_BUG_KICK_TIMEOUT
-		/* Can't be a bad idea to reset the speed ;-) - Jean II */
-		if(self->new_speed == -1)
-			self->new_speed = self->speed;
-		if(self->new_xbofs == -1)
-			self->new_xbofs = self->xbofs;
-		irda_usb_change_speed_xbofs(self);
-#endif /* IU_BUG_KICK_TIMEOUT */
-
-		switch (urb->status) {
-		case -EINPROGRESS:
-			usb_unlink_urb(urb);
-			/* Note : above will  *NOT* call netif_wake_queue()
-			 * in completion handler, because urb->status will
-			 * be -ENOENT. We will fix that at the next watchdog,
-			 * leaving more time to USB to recover...
-			 * Jean II */
-			done = 1;
-			break;
-		case -ECONNRESET:
-		case -ENOENT:			/* urb unlinked by us */
-		default:			/* ??? - Play safe */
-			if(skb != NULL) {
-				dev_kfree_skb_any(skb);
-				urb->context = NULL;
-			}
-			urb->status = 0;
-			netif_wake_queue(self->netdev);
-			done = 1;
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&self->lock, flags);
-
-	/* Maybe we need a reset */
-	/* Note : Some drivers seem to use a usb_set_interface() when they
-	 * need to reset the hardware. Hum...
-	 */
-
-	/* if(done == 0) */
-}
-
-/************************* RECEIVE ROUTINES *************************/
-/*
- * Receive packets from the USB layer stack and pass them to the IrDA stack.
- * Try to work around USB failures...
- */
-
-/*
- * Note :
- * Some of you may have noticed that most dongle have an interrupt in pipe
- * that we don't use. Here is the little secret...
- * When we hang a Rx URB on the bulk in pipe, it generates some USB traffic
- * in every USB frame. This is unnecessary overhead.
- * The interrupt in pipe will generate an event every time a packet is
- * received. Reading an interrupt pipe adds minimal overhead, but has some
- * latency (~1ms).
- * If we are connected (speed != 9600), we want to minimise latency, so
- * we just always hang the Rx URB and ignore the interrupt.
- * If we are not connected (speed == 9600), there is usually no Rx traffic,
- * and we want to minimise the USB overhead. In this case we should wait
- * on the interrupt pipe and hang the Rx URB only when an interrupt is
- * received.
- * Jean II
- *
- * Note : don't read the above as what we are currently doing, but as
- * something we could do with KC dongle. Also don't forget that the
- * interrupt pipe is not part of the original standard, so this would
- * need to be optional...
- * Jean II
- */
-
-/*------------------------------------------------------------------*/
-/*
- * Submit a Rx URB to the USB layer to handle reception of a frame
- * Mostly called by the completion callback of the previous URB.
- *
- * Jean II
- */
-static void irda_usb_submit(struct irda_usb_cb *self, struct sk_buff *skb, struct urb *urb)
-{
-	struct irda_skb_cb *cb;
-	int ret;
-
-	/* This should never happen */
-	IRDA_ASSERT(skb != NULL, return;);
-	IRDA_ASSERT(urb != NULL, return;);
-
-	/* Save ourselves in the skb */
-	cb = (struct irda_skb_cb *) skb->cb;
-	cb->context = self;
-
-	/* Reinitialize URB */
-	usb_fill_bulk_urb(urb, self->usbdev, 
-		      usb_rcvbulkpipe(self->usbdev, self->bulk_in_ep), 
-		      skb->data, IRDA_SKB_MAX_MTU,
-                      irda_usb_receive, skb);
-	urb->status = 0;
-
-	/* Can be called from irda_usb_receive (irq handler) -> GFP_ATOMIC */
-	ret = usb_submit_urb(urb, GFP_ATOMIC);
-	if (ret) {
-		/* If this ever happen, we are in deep s***.
-		 * Basically, the Rx path will stop... */
-		net_warn_ratelimited("%s(), Failed to submit Rx URB %d\n",
-				     __func__, ret);
-	}
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Function irda_usb_receive(urb)
- *
- *     Called by the USB subsystem when a frame has been received
- *
- */
-static void irda_usb_receive(struct urb *urb)
-{
-	struct sk_buff *skb = (struct sk_buff *) urb->context;
-	struct irda_usb_cb *self; 
-	struct irda_skb_cb *cb;
-	struct sk_buff *newskb;
-	struct sk_buff *dataskb;
-	struct urb *next_urb;
-	unsigned int len, docopy;
-
-	pr_debug("%s(), len=%d\n", __func__, urb->actual_length);
-	
-	/* Find ourselves */
-	cb = (struct irda_skb_cb *) skb->cb;
-	IRDA_ASSERT(cb != NULL, return;);
-	self = (struct irda_usb_cb *) cb->context;
-	IRDA_ASSERT(self != NULL, return;);
-
-	/* If the network is closed or the device gone, stop everything */
-	if ((!self->netopen) || (!self->present)) {
-		pr_debug("%s(), Network is gone!\n", __func__);
-		/* Don't re-submit the URB : will stall the Rx path */
-		return;
-	}
-	
-	/* Check the status */
-	if (urb->status != 0) {
-		switch (urb->status) {
-		case -EILSEQ:
-			self->netdev->stats.rx_crc_errors++;
-			/* Also precursor to a hot-unplug on UHCI. */
-			/* Fallthrough... */
-		case -ECONNRESET:
-			/* Random error, if I remember correctly */
-			/* uhci_cleanup_unlink() is going to kill the Rx
-			 * URB just after we return. No problem, at this
-			 * point the URB will be idle ;-) - Jean II */
-		case -ESHUTDOWN:
-			/* That's usually a hot-unplug. Submit will fail... */
-		case -ETIME:
-			/* Usually precursor to a hot-unplug on OHCI. */
-		default:
-			self->netdev->stats.rx_errors++;
-			pr_debug("%s(), RX status %d, transfer_flags 0x%04X\n",
-				 __func__, urb->status, urb->transfer_flags);
-			break;
-		}
-		/* If we received an error, we don't want to resubmit the
-		 * Rx URB straight away but to give the USB layer a little
-		 * bit of breathing room.
-		 * We are in the USB thread context, therefore there is a
-		 * danger of recursion (new URB we submit fails, we come
-		 * back here).
-		 * With recent USB stack (2.6.15+), I'm seeing that on
-		 * hot unplug of the dongle...
-		 * Lowest effective timer is 10ms...
-		 * Jean II */
-		self->rx_defer_timer.function = irda_usb_rx_defer_expired;
-		self->rx_defer_timer.data = (unsigned long) urb;
-		mod_timer(&self->rx_defer_timer,
-			  jiffies + msecs_to_jiffies(10));
-
-		return;
-	}
-	
-	/* Check for empty frames */
-	if (urb->actual_length <= self->header_length) {
-		net_warn_ratelimited("%s(), empty frame!\n", __func__);
-		goto done;
-	}
-
-	/*  
-	 * Remember the time we received this frame, so we can
-	 * reduce the min turn time a bit since we will know
-	 * how much time we have used for protocol processing
-	 */
-	self->stamp = ktime_get();
-
-	/* Check if we need to copy the data to a new skb or not.
-	 * For most frames, we use ZeroCopy and pass the already
-	 * allocated skb up the stack.
-	 * If the frame is small, it is more efficient to copy it
-	 * to save memory (copy will be fast anyway - that's
-	 * called Rx-copy-break). Jean II */
-	docopy = (urb->actual_length < IRDA_RX_COPY_THRESHOLD);
-
-	/* Allocate a new skb */
-	if (self->capability & IUC_STIR421X)
-		newskb = dev_alloc_skb(docopy ? urb->actual_length :
-				       IRDA_SKB_MAX_MTU +
-				       USB_IRDA_STIR421X_HEADER);
-	else
-		newskb = dev_alloc_skb(docopy ? urb->actual_length :
-				       IRDA_SKB_MAX_MTU);
-
-	if (!newskb)  {
-		self->netdev->stats.rx_dropped++;
-		/* We could deliver the current skb, but this would stall
-		 * the Rx path. Better drop the packet... Jean II */
-		goto done;  
-	}
-
-	/* Make sure IP header get aligned (IrDA header is 5 bytes) */
-	/* But IrDA-USB header is 1 byte. Jean II */
-	//skb_reserve(newskb, USB_IRDA_HEADER - 1);
-
-	if(docopy) {
-		/* Copy packet, so we can recycle the original */
-		skb_copy_from_linear_data(skb, newskb->data, urb->actual_length);
-		/* Deliver this new skb */
-		dataskb = newskb;
-		/* And hook the old skb to the URB
-		 * Note : we don't need to "clean up" the old skb,
-		 * as we never touched it. Jean II */
-	} else {
-		/* We are using ZeroCopy. Deliver old skb */
-		dataskb = skb;
-		/* And hook the new skb to the URB */
-		skb = newskb;
-	}
-
-	/* Set proper length on skb & remove USB-IrDA header */
-	skb_put(dataskb, urb->actual_length);
-	skb_pull(dataskb, self->header_length);
-
-	/* Ask the networking layer to queue the packet for the IrDA stack */
-	dataskb->dev = self->netdev;
-	skb_reset_mac_header(dataskb);
-	dataskb->protocol = htons(ETH_P_IRDA);
-	len = dataskb->len;
-	netif_rx(dataskb);
-
-	/* Keep stats up to date */
-	self->netdev->stats.rx_bytes += len;
-	self->netdev->stats.rx_packets++;
-
-done:
-	/* Note : at this point, the URB we've just received (urb)
-	 * is still referenced by the USB layer. For example, if we
-	 * have received a -ECONNRESET, uhci_cleanup_unlink() will
-	 * continue to process it (in fact, cleaning it up).
-	 * If we were to submit this URB, disaster would ensue.
-	 * Therefore, we submit our idle URB, and put this URB in our
-	 * idle slot....
-	 * Jean II */
-	/* Note : with this scheme, we could submit the idle URB before
-	 * processing the Rx URB. I don't think it would buy us anything as
-	 * we are running in the USB thread context. Jean II */
-	next_urb = self->idle_rx_urb;
-
-	/* Recycle Rx URB : Now, the idle URB is the present one */
-	urb->context = NULL;
-	self->idle_rx_urb = urb;
-
-	/* Submit the idle URB to replace the URB we've just received.
-	 * Do it last to avoid race conditions... Jean II */
-	irda_usb_submit(self, skb, next_urb);
-}
-
-/*------------------------------------------------------------------*/
-/*
- * In case of errors, we want the USB layer to have time to recover.
- * Now, it is time to resubmit ouur Rx URB...
- */
-static void irda_usb_rx_defer_expired(unsigned long data)
-{
-	struct urb *urb = (struct urb *) data;
-	struct sk_buff *skb = (struct sk_buff *) urb->context;
-	struct irda_usb_cb *self; 
-	struct irda_skb_cb *cb;
-	struct urb *next_urb;
-
-	/* Find ourselves */
-	cb = (struct irda_skb_cb *) skb->cb;
-	IRDA_ASSERT(cb != NULL, return;);
-	self = (struct irda_usb_cb *) cb->context;
-	IRDA_ASSERT(self != NULL, return;);
-
-	/* Same stuff as when Rx is done, see above... */
-	next_urb = self->idle_rx_urb;
-	urb->context = NULL;
-	self->idle_rx_urb = urb;
-	irda_usb_submit(self, skb, next_urb);
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Callbak from IrDA layer. IrDA wants to know if we have
- * started receiving anything.
- */
-static int irda_usb_is_receiving(struct irda_usb_cb *self)
-{
-	/* Note : because of the way UHCI works, it's almost impossible
-	 * to get this info. The Controller DMA directly to memory and
-	 * signal only when the whole frame is finished. To know if the
-	 * first TD of the URB has been filled or not seems hard work...
-	 *
-	 * The other solution would be to use the "receiving" command
-	 * on the default decriptor with a usb_control_msg(), but that
-	 * would add USB traffic and would return result only in the
-	 * next USB frame (~1ms).
-	 *
-	 * I've been told that current dongles send status info on their
-	 * interrupt endpoint, and that's what the Windows driver uses
-	 * to know this info. Unfortunately, this is not yet in the spec...
-	 *
-	 * Jean II
-	 */
-
-	return 0; /* For now */
-}
-
-#define STIR421X_PATCH_PRODUCT_VER     "Product Version: "
-#define STIR421X_PATCH_STMP_TAG        "STMP"
-#define STIR421X_PATCH_CODE_OFFSET     512 /* patch image starts before here */
-/* marks end of patch file header (PC DOS text file EOF character) */
-#define STIR421X_PATCH_END_OF_HDR_TAG  0x1A
-#define STIR421X_PATCH_BLOCK_SIZE      1023
-
-/*
- * Function stir421x_fwupload (struct irda_usb_cb *self,
- *                             unsigned char *patch,
- *                             const unsigned int patch_len)
- *
- *   Upload firmware code to SigmaTel 421X IRDA-USB dongle
- */
-static int stir421x_fw_upload(struct irda_usb_cb *self,
-			     const unsigned char *patch,
-			     const unsigned int patch_len)
-{
-        int ret = -ENOMEM;
-        int actual_len = 0;
-        unsigned int i;
-        unsigned int block_size = 0;
-        unsigned char *patch_block;
-
-        patch_block = kzalloc(STIR421X_PATCH_BLOCK_SIZE, GFP_KERNEL);
-	if (patch_block == NULL)
-		return -ENOMEM;
-
-	/* break up patch into 1023-byte sections */
-	for (i = 0; i < patch_len; i += block_size) {
-		block_size = patch_len - i;
-
-		if (block_size > STIR421X_PATCH_BLOCK_SIZE)
-			block_size = STIR421X_PATCH_BLOCK_SIZE;
-
-		/* upload the patch section */
-		memcpy(patch_block, patch + i, block_size);
-
-		ret = usb_bulk_msg(self->usbdev,
-				   usb_sndbulkpipe(self->usbdev,
-						   self->bulk_out_ep),
-				   patch_block, block_size,
-				   &actual_len, msecs_to_jiffies(500));
-		pr_debug("%s(): Bulk send %u bytes, ret=%d\n",
-			 __func__, actual_len, ret);
-