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, 987 deletions

diff --git a/drivers/net/irda/sir_dev.c b/drivers/net/irda/sir_dev.c
deleted file mode 100644
index 6af26a7d787c..000000000000
--- a/drivers/net/irda/sir_dev.c
+++ /dev/null
@@ -1,987 +0,0 @@
-/*********************************************************************
- *
- *	sir_dev.c:	irda sir network device
- * 
- *	Copyright (c) 2002 Martin Diehl
- * 
- *	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.
- *
- ********************************************************************/    
-
-#include <linux/hardirq.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-
-#include <net/irda/irda.h>
-#include <net/irda/wrapper.h>
-#include <net/irda/irda_device.h>
-
-#include "sir-dev.h"
-
-
-static struct workqueue_struct *irda_sir_wq;
-
-/* STATE MACHINE */
-
-/* substate handler of the config-fsm to handle the cases where we want
- * to wait for transmit completion before changing the port configuration
- */
-
-static int sirdev_tx_complete_fsm(struct sir_dev *dev)
-{
-	struct sir_fsm *fsm = &dev->fsm;
-	unsigned next_state, delay;
-	unsigned bytes_left;
-
-	do {
-		next_state = fsm->substate;	/* default: stay in current substate */
-		delay = 0;
-
-		switch(fsm->substate) {
-
-		case SIRDEV_STATE_WAIT_XMIT:
-			if (dev->drv->chars_in_buffer)
-				bytes_left = dev->drv->chars_in_buffer(dev);
-			else
-				bytes_left = 0;
-			if (!bytes_left) {
-				next_state = SIRDEV_STATE_WAIT_UNTIL_SENT;
-				break;
-			}
-
-			if (dev->speed > 115200)
-				delay = (bytes_left*8*10000) / (dev->speed/100);
-			else if (dev->speed > 0)
-				delay = (bytes_left*10*10000) / (dev->speed/100);
-			else
-				delay = 0;
-			/* expected delay (usec) until remaining bytes are sent */
-			if (delay < 100) {
-				udelay(delay);
-				delay = 0;
-				break;
-			}
-			/* sleep some longer delay (msec) */
-			delay = (delay+999) / 1000;
-			break;
-
-		case SIRDEV_STATE_WAIT_UNTIL_SENT:
-			/* block until underlaying hardware buffer are empty */
-			if (dev->drv->wait_until_sent)
-				dev->drv->wait_until_sent(dev);
-			next_state = SIRDEV_STATE_TX_DONE;
-			break;
-
-		case SIRDEV_STATE_TX_DONE:
-			return 0;
-
-		default:
-			net_err_ratelimited("%s - undefined state\n", __func__);
-			return -EINVAL;
-		}
-		fsm->substate = next_state;
-	} while (delay == 0);
-	return delay;
-}
-
-/*
- * Function sirdev_config_fsm
- *
- * State machine to handle the configuration of the device (and attached dongle, if any).
- * This handler is scheduled for execution in kIrDAd context, so we can sleep.
- * however, kIrDAd is shared by all sir_dev devices so we better don't sleep there too
- * long. Instead, for longer delays we start a timer to reschedule us later.
- * On entry, fsm->sem is always locked and the netdev xmit queue stopped.
- * Both must be unlocked/restarted on completion - but only on final exit.
- */
-
-static void sirdev_config_fsm(struct work_struct *work)
-{
-	struct sir_dev *dev = container_of(work, struct sir_dev, fsm.work.work);
-	struct sir_fsm *fsm = &dev->fsm;
-	int next_state;
-	int ret = -1;
-	unsigned delay;
-
-	pr_debug("%s(), <%ld>\n", __func__, jiffies);
-
-	do {
-		pr_debug("%s - state=0x%04x / substate=0x%04x\n",
-			 __func__, fsm->state, fsm->substate);
-
-		next_state = fsm->state;
-		delay = 0;
-
-		switch(fsm->state) {
-
-		case SIRDEV_STATE_DONGLE_OPEN:
-			if (dev->dongle_drv != NULL) {
-				ret = sirdev_put_dongle(dev);
-				if (ret) {
-					fsm->result = -EINVAL;
-					next_state = SIRDEV_STATE_ERROR;
-					break;
-				}
-			}
-
-			/* Initialize dongle */
-			ret = sirdev_get_dongle(dev, fsm->param);
-			if (ret) {
-				fsm->result = ret;
-				next_state = SIRDEV_STATE_ERROR;
-				break;
-			}
-
-			/* Dongles are powered through the modem control lines which
-			 * were just set during open. Before resetting, let's wait for
-			 * the power to stabilize. This is what some dongle drivers did
-			 * in open before, while others didn't - should be safe anyway.
-			 */
-
-			delay = 50;
-			fsm->substate = SIRDEV_STATE_DONGLE_RESET;
-			next_state = SIRDEV_STATE_DONGLE_RESET;
-
-			fsm->param = 9600;
-
-			break;
-
-		case SIRDEV_STATE_DONGLE_CLOSE:
-			/* shouldn't we just treat this as success=? */
-			if (dev->dongle_drv == NULL) {
-				fsm->result = -EINVAL;
-				next_state = SIRDEV_STATE_ERROR;
-				break;
-			}
-
-			ret = sirdev_put_dongle(dev);
-			if (ret) {
-				fsm->result = ret;
-				next_state = SIRDEV_STATE_ERROR;
-				break;
-			}
-			next_state = SIRDEV_STATE_DONE;
-			break;
-
-		case SIRDEV_STATE_SET_DTR_RTS:
-			ret = sirdev_set_dtr_rts(dev,
-				(fsm->param&0x02) ? TRUE : FALSE,
-				(fsm->param&0x01) ? TRUE : FALSE);
-			next_state = SIRDEV_STATE_DONE;
-			break;
-
-		case SIRDEV_STATE_SET_SPEED:
-			fsm->substate = SIRDEV_STATE_WAIT_XMIT;
-			next_state = SIRDEV_STATE_DONGLE_CHECK;
-			break;
-
-		case SIRDEV_STATE_DONGLE_CHECK:
-			ret = sirdev_tx_complete_fsm(dev);
-			if (ret < 0) {
-				fsm->result = ret;
-				next_state = SIRDEV_STATE_ERROR;
-				break;
-			}
-			if ((delay=ret) != 0)
-				break;
-
-			if (dev->dongle_drv) {
-				fsm->substate = SIRDEV_STATE_DONGLE_RESET;
-				next_state = SIRDEV_STATE_DONGLE_RESET;
-			}
-			else {
-				dev->speed = fsm->param;
-				next_state = SIRDEV_STATE_PORT_SPEED;
-			}
-			break;
-
-		case SIRDEV_STATE_DONGLE_RESET:
-			if (dev->dongle_drv->reset) {
-				ret = dev->dongle_drv->reset(dev);
-				if (ret < 0) {
-					fsm->result = ret;
-					next_state = SIRDEV_STATE_ERROR;
-					break;
-				}
-			}
-			else
-				ret = 0;
-			if ((delay=ret) == 0) {
-				/* set serial port according to dongle default speed */
-				if (dev->drv->set_speed)
-					dev->drv->set_speed(dev, dev->speed);
-				fsm->substate = SIRDEV_STATE_DONGLE_SPEED;
-				next_state = SIRDEV_STATE_DONGLE_SPEED;
-			}
-			break;
-
-		case SIRDEV_STATE_DONGLE_SPEED:
-			if (dev->dongle_drv->set_speed) {
-				ret = dev->dongle_drv->set_speed(dev, fsm->param);
-				if (ret < 0) {
-					fsm->result = ret;
-					next_state = SIRDEV_STATE_ERROR;
-					break;
-				}
-			}
-			else
-				ret = 0;
-			if ((delay=ret) == 0)
-				next_state = SIRDEV_STATE_PORT_SPEED;
-			break;
-
-		case SIRDEV_STATE_PORT_SPEED:
-			/* Finally we are ready to change the serial port speed */
-			if (dev->drv->set_speed)
-				dev->drv->set_speed(dev, dev->speed);
-			dev->new_speed = 0;
-			next_state = SIRDEV_STATE_DONE;
-			break;
-
-		case SIRDEV_STATE_DONE:
-			/* Signal network layer so it can send more frames */
-			netif_wake_queue(dev->netdev);
-			next_state = SIRDEV_STATE_COMPLETE;
-			break;
-
-		default:
-			net_err_ratelimited("%s - undefined state\n", __func__);
-			fsm->result = -EINVAL;
-			/* fall thru */
-
-		case SIRDEV_STATE_ERROR:
-			net_err_ratelimited("%s - error: %d\n",
-					    __func__, fsm->result);
-
-#if 0	/* don't enable this before we have netdev->tx_timeout to recover */
-			netif_stop_queue(dev->netdev);
-#else
-			netif_wake_queue(dev->netdev);
-#endif
-			/* fall thru */
-
-		case SIRDEV_STATE_COMPLETE:
-			/* config change finished, so we are not busy any longer */
-			sirdev_enable_rx(dev);
-			up(&fsm->sem);
-			return;
-		}
-		fsm->state = next_state;
-	} while(!delay);
-
-	queue_delayed_work(irda_sir_wq, &fsm->work, msecs_to_jiffies(delay));
-}
-
-/* schedule some device configuration task for execution by kIrDAd
- * on behalf of the above state machine.
- * can be called from process or interrupt/tasklet context.
- */
-
-int sirdev_schedule_request(struct sir_dev *dev, int initial_state, unsigned param)
-{
-	struct sir_fsm *fsm = &dev->fsm;
-
-	pr_debug("%s - state=0x%04x / param=%u\n", __func__,
-		 initial_state, param);
-
-	if (down_trylock(&fsm->sem)) {
-		if (in_interrupt()  ||  in_atomic()  ||  irqs_disabled()) {
-			pr_debug("%s(), state machine busy!\n", __func__);
-			return -EWOULDBLOCK;
-		} else
-			down(&fsm->sem);
-	}
-
-	if (fsm->state == SIRDEV_STATE_DEAD) {
-		/* race with sirdev_close should never happen */
-		net_err_ratelimited("%s(), instance staled!\n", __func__);
-		up(&fsm->sem);
-		return -ESTALE;		/* or better EPIPE? */
-	}
-
-	netif_stop_queue(dev->netdev);
-	atomic_set(&dev->enable_rx, 0);
-
-	fsm->state = initial_state;
-	fsm->param = param;
-	fsm->result = 0;
-
-	INIT_DELAYED_WORK(&fsm->work, sirdev_config_fsm);
-	queue_delayed_work(irda_sir_wq, &fsm->work, 0);
-	return 0;
-}
-
-
-/***************************************************************************/
-
-void sirdev_enable_rx(struct sir_dev *dev)
-{
-	if (unlikely(atomic_read(&dev->enable_rx)))
-		return;
-
-	/* flush rx-buffer - should also help in case of problems with echo cancelation */
-	dev->rx_buff.data = dev->rx_buff.head;
-	dev->rx_buff.len = 0;
-	dev->rx_buff.in_frame = FALSE;
-	dev->rx_buff.state = OUTSIDE_FRAME;
-	atomic_set(&dev->enable_rx, 1);
-}
-
-static int sirdev_is_receiving(struct sir_dev *dev)
-{
-	if (!atomic_read(&dev->enable_rx))
-		return 0;
-
-	return dev->rx_buff.state != OUTSIDE_FRAME;
-}
-
-int sirdev_set_dongle(struct sir_dev *dev, IRDA_DONGLE type)
-{
-	int err;
-
-	pr_debug("%s : requesting dongle %d.\n", __func__, type);
-
-	err = sirdev_schedule_dongle_open(dev, type);
-	if (unlikely(err))
-		return err;
-	down(&dev->fsm.sem);		/* block until config change completed */
-	err = dev->fsm.result;
-	up(&dev->fsm.sem);
-	return err;
-}
-EXPORT_SYMBOL(sirdev_set_dongle);
-
-/* used by dongle drivers for dongle programming */
-
-int sirdev_raw_write(struct sir_dev *dev, const char *buf, int len)
-{
-	unsigned long flags;
-	int ret;
-
-	if (unlikely(len > dev->tx_buff.truesize))
-		return -ENOSPC;
-
-	spin_lock_irqsave(&dev->tx_lock, flags);	/* serialize with other tx operations */
-	while (dev->tx_buff.len > 0) {			/* wait until tx idle */
-		spin_unlock_irqrestore(&dev->tx_lock, flags);
-		msleep(10);
-		spin_lock_irqsave(&dev->tx_lock, flags);
-	}
-
-	dev->tx_buff.data = dev->tx_buff.head;
-	memcpy(dev->tx_buff.data, buf, len);	
-	dev->tx_buff.len = len;
-
-	ret = dev->drv->do_write(dev, dev->tx_buff.data, dev->tx_buff.len);
-	if (ret > 0) {
-		pr_debug("%s(), raw-tx started\n", __func__);
-
-		dev->tx_buff.data += ret;
-		dev->tx_buff.len -= ret;
-		dev->raw_tx = 1;
-		ret = len;		/* all data is going to be sent */
-	}
-	spin_unlock_irqrestore(&dev->tx_lock, flags);
-	return ret;
-}
-EXPORT_SYMBOL(sirdev_raw_write);
-
-/* seems some dongle drivers may need this */
-
-int sirdev_raw_read(struct sir_dev *dev, char *buf, int len)
-{
-	int count;
-
-	if (atomic_read(&dev->enable_rx))
-		return -EIO;		/* fail if we expect irda-frames */
-
-	count = (len < dev->rx_buff.len) ? len : dev->rx_buff.len;
-
-	if (count > 0) {
-		memcpy(buf, dev->rx_buff.data, count);
-		dev->rx_buff.data += count;
-		dev->rx_buff.len -= count;
-	}
-
-	/* remaining stuff gets flushed when re-enabling normal rx */
-
-	return count;
-}
-EXPORT_SYMBOL(sirdev_raw_read);
-
-int sirdev_set_dtr_rts(struct sir_dev *dev, int dtr, int rts)
-{
-	int ret = -ENXIO;
-	if (dev->drv->set_dtr_rts)
-		ret =  dev->drv->set_dtr_rts(dev, dtr, rts);
-	return ret;
-}
-EXPORT_SYMBOL(sirdev_set_dtr_rts);
-
-/**********************************************************************/
-
-/* called from client driver - likely with bh-context - to indicate
- * it made some progress with transmission. Hence we send the next
- * chunk, if any, or complete the skb otherwise
- */
-
-void sirdev_write_complete(struct sir_dev *dev)
-{
-	unsigned long flags;
-	struct sk_buff *skb;
-	int actual = 0;
-	int err;
-	
-	spin_lock_irqsave(&dev->tx_lock, flags);
-
-	pr_debug("%s() - dev->tx_buff.len = %d\n",
-		 __func__, dev->tx_buff.len);
-
-	if (likely(dev->tx_buff.len > 0))  {
-		/* Write data left in transmit buffer */
-		actual = dev->drv->do_write(dev, dev->tx_buff.data, dev->tx_buff.len);
-
-		if (likely(actual>0)) {
-			dev->tx_buff.data += actual;
-			dev->tx_buff.len  -= actual;
-		}
-		else if (unlikely(actual<0)) {
-			/* could be dropped later when we have tx_timeout to recover */
-			net_err_ratelimited("%s: drv->do_write failed (%d)\n",
-					    __func__, actual);
-			if ((skb=dev->tx_skb) != NULL) {
-				dev->tx_skb = NULL;
-				dev_kfree_skb_any(skb);
-				dev->netdev->stats.tx_errors++;
-				dev->netdev->stats.tx_dropped++;
-			}
-			dev->tx_buff.len = 0;
-		}
-		if (dev->tx_buff.len > 0)
-			goto done;	/* more data to send later */
-	}
-
-	if (unlikely(dev->raw_tx != 0)) {
-		/* in raw mode we are just done now after the buffer was sent
-		 * completely. Since this was requested by some dongle driver
-		 * running under the control of the irda-thread we must take
-		 * care here not to re-enable the queue. The queue will be
-		 * restarted when the irda-thread has completed the request.
-		 */
-
-		pr_debug("%s(), raw-tx done\n", __func__);
-		dev->raw_tx = 0;
-		goto done;	/* no post-frame handling in raw mode */
-	}
-
-	/* we have finished now sending this skb.
-	 * update statistics and free the skb.
-	 * finally we check and trigger a pending speed change, if any.
-	 * if not we switch to rx mode and wake the queue for further
-	 * packets.
-	 * note the scheduled speed request blocks until the lower
-	 * client driver and the corresponding hardware has really
-	 * finished sending all data (xmit fifo drained f.e.)
-	 * before the speed change gets finally done and the queue
-	 * re-activated.
-	 */
-
-	pr_debug("%s(), finished with frame!\n", __func__);
-		
-	if ((skb=dev->tx_skb) != NULL) {
-		dev->tx_skb = NULL;
-		dev->netdev->stats.tx_packets++;
-		dev->netdev->stats.tx_bytes += skb->len;
-		dev_kfree_skb_any(skb);
-	}
-
-	if (unlikely(dev->new_speed > 0)) {
-		pr_debug("%s(), Changing speed!\n", __func__);
-		err = sirdev_schedule_speed(dev, dev->new_speed);
-		if (unlikely(err)) {
-			/* should never happen
-			 * forget the speed change and hope the stack recovers
-			 */
-			net_err_ratelimited("%s - schedule speed change failed: %d\n",
-					    __func__, err);
-			netif_wake_queue(dev->netdev);
-		}
-		/* else: success
-		 *	speed change in progress now
-		 *	on completion dev->new_speed gets cleared,
-		 *	rx-reenabled and the queue restarted
-		 */
-	}
-	else {
-		sirdev_enable_rx(dev);
-		netif_wake_queue(dev->netdev);
-	}
-
-done:
-	spin_unlock_irqrestore(&dev->tx_lock, flags);
-}
-EXPORT_SYMBOL(sirdev_write_complete);
-
-/* called from client driver - likely with bh-context - to give us
- * some more received bytes. We put them into the rx-buffer,
- * normally unwrapping and building LAP-skb's (unless rx disabled)
- */
-
-int sirdev_receive(struct sir_dev *dev, const unsigned char *cp, size_t count) 
-{
-	if (!dev || !dev->netdev) {
-		net_warn_ratelimited("%s(), not ready yet!\n", __func__);
-		return -1;
-	}
-
-	if (!dev->irlap) {
-		net_warn_ratelimited("%s - too early: %p / %zd!\n",
-				     __func__, cp, count);
-		return -1;
-	}
-
-	if (cp==NULL) {
-		/* error already at lower level receive
-		 * just update stats and set media busy
-		 */
-		irda_device_set_media_busy(dev->netdev, TRUE);
-		dev->netdev->stats.rx_dropped++;
-		pr_debug("%s; rx-drop: %zd\n", __func__, count);
-		return 0;
-	}
-
-	/* Read the characters into the buffer */
-	if (likely(atomic_read(&dev->enable_rx))) {
-		while (count--)
-			/* Unwrap and destuff one byte */
-			async_unwrap_char(dev->netdev, &dev->netdev->stats,
-					  &dev->rx_buff, *cp++);
-	} else {
-		while (count--) {
-			/* rx not enabled: save the raw bytes and never
-			 * trigger any netif_rx. The received bytes are flushed
-			 * later when we re-enable rx but might be read meanwhile
-			 * by the dongle driver.
-			 */
-			dev->rx_buff.data[dev->rx_buff.len++] = *cp++;
-
-			/* What should we do when the buffer is full? */
-			if (unlikely(dev->rx_buff.len == dev->rx_buff.truesize))
-				dev->rx_buff.len = 0;
-		}
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(sirdev_receive);
-
-/**********************************************************************/
-
-/* callbacks from network layer */
-
-static netdev_tx_t sirdev_hard_xmit(struct sk_buff *skb,
-					  struct net_device *ndev)
-{
-	struct sir_dev *dev = netdev_priv(ndev);
-	unsigned long flags;
-	int actual = 0;
-	int err;
-	s32 speed;
-
-	IRDA_ASSERT(dev != NULL, return NETDEV_TX_OK;);
-
-	netif_stop_queue(ndev);
-
-	pr_debug("%s(), skb->len = %d\n", __func__, skb->len);
-
-	speed = irda_get_next_speed(skb);
-	if ((speed != dev->speed) && (speed != -1)) {
-		if (!skb->len) {
-			err = sirdev_schedule_speed(dev, speed);
-			if (unlikely(err == -EWOULDBLOCK)) {
-				/* Failed to initiate the speed change, likely the fsm
-				 * is still busy (pretty unlikely, but...)
-				 * We refuse to accept the skb and return with the queue
-				 * stopped so the network layer will retry after the
-				 * fsm completes and wakes the queue.
-				 */
-				 return NETDEV_TX_BUSY;
-			}
-			else if (unlikely(err)) {
-				/* other fatal error - forget the speed change and
-				 * hope the stack will recover somehow
-				 */
-				 netif_start_queue(ndev);
-			}
-			/* else: success
-			 *	speed change in progress now
-			 *	on completion the queue gets restarted
-			 */
-
-			dev_kfree_skb_any(skb);
-			return NETDEV_TX_OK;
-		} else
-			dev->new_speed = speed;
-	}
-
-	/* Init tx buffer*/
-	dev->tx_buff.data = dev->tx_buff.head;
-
-	/* Check problems */
-	if(spin_is_locked(&dev->tx_lock)) {
-		pr_debug("%s(), write not completed\n", __func__);
-	}
-
-	/* serialize with write completion */
-	spin_lock_irqsave(&dev->tx_lock, flags);
-
-        /* Copy skb to tx_buff while wrapping, stuffing and making CRC */
-	dev->tx_buff.len = async_wrap_skb(skb, dev->tx_buff.data, dev->tx_buff.truesize); 
-
-	/* transmission will start now - disable receive.
-	 * if we are just in the middle of an incoming frame,
-	 * treat it as collision. probably it's a good idea to
-	 * reset the rx_buf OUTSIDE_FRAME in this case too?
-	 */
-	atomic_set(&dev->enable_rx, 0);
-	if (unlikely(sirdev_is_receiving(dev)))
-		dev->netdev->stats.collisions++;
-
-	actual = dev->drv->do_write(dev, dev->tx_buff.data, dev->tx_buff.len);
-
-	if (likely(actual > 0)) {
-		dev->tx_skb = skb;
-		dev->tx_buff.data += actual;
-		dev->tx_buff.len -= actual;
-	}
-	else if (unlikely(actual < 0)) {
-		/* could be dropped later when we have tx_timeout to recover */
-		net_err_ratelimited("%s: drv->do_write failed (%d)\n",
-				    __func__, actual);
-		dev_kfree_skb_any(skb);
-		dev->netdev->stats.tx_errors++;
-		dev->netdev->stats.tx_dropped++;
-		netif_wake_queue(ndev);
-	}
-	spin_unlock_irqrestore(&dev->tx_lock, flags);
-
-	return NETDEV_TX_OK;
-}
-
-/* called from network layer with rtnl hold */
-
-static int sirdev_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
-{
-	struct if_irda_req *irq = (struct if_irda_req *) rq;
-	struct sir_dev *dev = netdev_priv(ndev);
-	int ret = 0;
-
-	IRDA_ASSERT(dev != NULL, return -1;);
-
-	pr_debug("%s(), %s, (cmd=0x%X)\n", __func__, ndev->name, cmd);
-	
-	switch (cmd) {
-	case SIOCSBANDWIDTH: /* Set bandwidth */
-		if (!capable(CAP_NET_ADMIN))
-			ret = -EPERM;
-		else
-			ret = sirdev_schedule_speed(dev, irq->ifr_baudrate);
-		/* cannot sleep here for completion
-		 * we are called from network layer with rtnl hold
-		 */
-		break;
-
-	case SIOCSDONGLE: /* Set dongle */
-		if (!capable(CAP_NET_ADMIN))
-			ret = -EPERM;
-		else
-			ret = sirdev_schedule_dongle_open(dev, irq->ifr_dongle);
-		/* cannot sleep here for completion
-		 * we are called from network layer with rtnl hold
-		 */
-		break;
-
-	case SIOCSMEDIABUSY: /* Set media busy */
-		if (!capable(CAP_NET_ADMIN))
-			ret = -EPERM;
-		else
-			irda_device_set_media_busy(dev->netdev, TRUE);
-		break;
-
-	case SIOCGRECEIVING: /* Check if we are receiving right now */
-		irq->ifr_receiving = sirdev_is_receiving(dev);
-		break;
-
-	case SIOCSDTRRTS:
-		if (!capable(CAP_NET_ADMIN))
-			ret = -EPERM;
-		else
-			ret = sirdev_schedule_dtr_rts(dev, irq->ifr_dtr, irq->ifr_rts);
-		/* cannot sleep here for completion
-		 * we are called from network layer with rtnl hold
-		 */
-		break;
-
-	case SIOCSMODE:
-#if 0
-		if (!capable(CAP_NET_ADMIN))
-			ret = -EPERM;
-		else
-			ret = sirdev_schedule_mode(dev, irq->ifr_mode);
-		/* cannot sleep here for completion
-		 * we are called from network layer with rtnl hold
-		 */
-		break;
-#endif
-	default:
-		ret = -EOPNOTSUPP;
-	}
-	
-	return ret;
-}
-
-/* ----------------------------------------------------------------------------- */
-
-#define SIRBUF_ALLOCSIZE 4269	/* worst case size of a wrapped IrLAP frame */
-
-static int sirdev_alloc_buffers(struct sir_dev *dev)
-{
-	dev->tx_buff.truesize = SIRBUF_ALLOCSIZE;
-	dev->rx_buff.truesize = IRDA_SKB_MAX_MTU; 
-
-	/* Bootstrap ZeroCopy Rx */
-	dev->rx_buff.skb = __netdev_alloc_skb(dev->netdev, dev->rx_buff.truesize,
-					      GFP_KERNEL);
-	if (dev->rx_buff.skb == NULL)
-		return -ENOMEM;
-	skb_reserve(dev->rx_buff.skb, 1);
-	dev->rx_buff.head = dev->rx_buff.skb->data;
-
-	dev->tx_buff.head = kmalloc(dev->tx_buff.truesize, GFP_KERNEL);
-	if (dev->tx_buff.head == NULL) {
-		kfree_skb(dev->rx_buff.skb);
-		dev->rx_buff.skb = NULL;
-		dev->rx_buff.head = NULL;
-		return -ENOMEM;
-	}
-
-	dev->tx_buff.data = dev->tx_buff.head;
-	dev->rx_buff.data = dev->rx_buff.head;
-	dev->tx_buff.len = 0;
-	dev->rx_buff.len = 0;
-
-	dev->rx_buff.in_frame = FALSE;
-	dev->rx_buff.state = OUTSIDE_FRAME;
-	return 0;
-};
-
-static void sirdev_free_buffers(struct sir_dev *dev)
-{
-	kfree_skb(dev->rx_buff.skb);
-	kfree(dev->tx_buff.head);
-	dev->rx_buff.head = dev->tx_buff.head = NULL;
-	dev->rx_buff.skb = NULL;
-}
-
-static int sirdev_open(struct net_device *ndev)
-{
-	struct sir_dev *dev = netdev_priv(ndev);
-	const struct sir_driver *drv = dev->drv;
-
-	if (!drv)
-		return -ENODEV;
-
-	/* increase the reference count of the driver module before doing serious stuff */
-	if (!try_module_get(drv->owner))
-		return -ESTALE;
-
-	if (sirdev_alloc_buffers(dev))
-		goto errout_dec;
-
-	if (!dev->drv->start_dev  ||  dev->drv->start_dev(dev))
-		goto errout_free;
-
-	sirdev_enable_rx(dev);
-	dev->raw_tx = 0;
-
-	netif_start_queue(ndev);
-	dev->irlap = irlap_open(ndev, &dev->qos, dev->hwname);
-	if (!dev->irlap)
-		goto errout_stop;
-
-	netif_wake_queue(ndev);
-
-	pr_debug("%s - done, speed = %d\n", __func__, dev->speed);
-
-	return 0;
-
-errout_stop:
-	atomic_set(&dev->enable_rx, 0);
-	if (dev->drv->stop_dev)
-		dev->drv->stop_dev(dev);
-errout_free:
-	sirdev_free_buffers(dev);
-errout_dec:
-	module_put(drv->owner);
-	return -EAGAIN;
-}
-
-static int sirdev_close(struct net_device *ndev)
-{
-	struct sir_dev *dev = netdev_priv(ndev);
-	const struct sir_driver *drv;
-
-/* pr_debug("%s\n", __func__); */
-
-	netif_stop_queue(ndev);
-
-	down(&dev->fsm.sem);		/* block on pending config completion */
-
-	atomic_set(&dev->enable_rx, 0);
-
-	if (unlikely(!dev->irlap))
-		goto out;
-	irlap_close(dev->irlap);
-	dev->irlap = NULL;
-
-	drv = dev->drv;
-	if (unlikely(!drv  ||  !dev->priv))
-		goto out;
-
-	if (drv->stop_dev)
-		drv->stop_dev(dev);
-
-	sirdev_free_buffers(dev);
-	module_put(drv->owner);
-
-out:
-	dev->speed = 0;
-	up(&dev->fsm.sem);
-	return 0;
-}
-
-static const struct net_device_ops sirdev_ops = {
-	.ndo_start_xmit	= sirdev_hard_xmit,
-	.ndo_open	= sirdev_open,
-	.ndo_stop	= sirdev_close,
-	.ndo_do_ioctl	= sirdev_ioctl,
-};
-/* ----------------------------------------------------------------------------- */
-
-struct sir_dev * sirdev_get_instance(const struct sir_driver *drv, const char *name)
-{
-	struct net_device *ndev;
-	struct sir_dev *dev;
-
-	pr_debug("%s - %s\n", __func__, name);
-
-	/* instead of adding tests to protect against drv->do_write==NULL
-	 * at several places we refuse to create a sir_dev instance for
-	 * drivers which don't implement do_write.
-	 */
-	if (!drv ||  !drv->do_write)
-		return NULL;
-
-	/*
-	 *  Allocate new instance of the device
-	 */
-	ndev = alloc_irdadev(sizeof(*dev));
-	if (ndev == NULL) {
-		net_err_ratelimited("%s - Can't allocate memory for IrDA control block!\n",
-				    __func__);
-		goto out;
-	}
-	dev = netdev_priv(ndev);
-
-	irda_init_max_qos_capabilies(&dev->qos);
-	dev->qos.baud_rate.bits = IR_9600|IR_19200|IR_38400|IR_57600|IR_115200;
-	dev->qos.min_turn_time.bits = drv->qos_mtt_bits;
-	irda_qos_bits_to_value(&dev->qos);
-
-	strncpy(dev->hwname, name, sizeof(dev->hwname)-1);
-
-	atomic_set(&dev->enable_rx, 0);
-	dev->tx_skb = NULL;
-
-	spin_lock_init(&dev->tx_lock);
-	sema_init(&dev->fsm.sem, 1);
-
-	dev->drv = drv;
-	dev->netdev = ndev;
-
-	/* Override the network functions we need to use */
-	ndev->netdev_ops = &sirdev_ops;
-
-	if (register_netdev(ndev)) {
-		net_err_ratelimited("%s(), register_netdev() failed!\n",
-				    __func__);
-		goto out_freenetdev;
-	}
-
-	return dev;
-
-out_freenetdev:
-	free_netdev(ndev);
-out:
-	return NULL;
-}
-EXPORT_SYMBOL(sirdev_get_instance);
-
-int sirdev_put_instance(struct sir_dev *dev)
-{
-	int err = 0;
-
-	pr_debug("%s\n", __func__);
-
-	atomic_set(&dev->enable_rx, 0);
-
-	netif_carrier_off(dev->netdev);
-	netif_device_detach(dev->netdev);
-
-	if (dev->dongle_drv)
-		err = sirdev_schedule_dongle_close(dev);
-	if (err)
-		net_err_ratelimited("%s - error %d\n", __func__, err);
-
-	sirdev_close(dev->netdev);
-
-	down(&dev->fsm.sem);
-	dev->fsm.state = SIRDEV_STATE_DEAD;	/* mark staled */
-	dev->dongle_drv = NULL;
-	dev->priv = NULL;
-	up(&dev->fsm.sem);
-
-	/* Remove netdevice */
-	unregister_netdev(dev->netdev);
-
-	free_netdev(dev->netdev);
-
-	return 0;
-}
-EXPORT_SYMBOL(sirdev_put_instance);
-
-static int __init sir_wq_init(void)
-{
-	irda_sir_wq = create_singlethread_workqueue("irda_sir_wq");
-	if (!irda_sir_wq)
-		return -ENOMEM;
-	return 0;
-}
-
-static void __exit sir_wq_exit(void)
-{
-	destroy_workqueue(irda_sir_wq);
-}
-
-module_init(sir_wq_init);
-module_exit(sir_wq_exit);
-
-MODULE_AUTHOR("Martin Diehl <info@mdiehl.de>");
-MODULE_DESCRIPTION("IrDA SIR core");
-MODULE_LICENSE("GPL");