1 files changed, 0 insertions, 674 deletions

diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_pio.c b/drivers/net/wireless/bcm43xx/bcm43xx_pio.c
deleted file mode 100644
index 76ab109cd2db..000000000000
--- a/drivers/net/wireless/bcm43xx/bcm43xx_pio.c
+++ /dev/null
@@ -1,674 +0,0 @@
-/*
-
-  Broadcom BCM43xx wireless driver
-
-  PIO Transmission
-
-  Copyright (c) 2005 Michael Buesch <mbuesch@freenet.de>
-
-  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; see the file COPYING.  If not, write to
-  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
-  Boston, MA 02110-1301, USA.
-
-*/
-
-#include "bcm43xx.h"
-#include "bcm43xx_pio.h"
-#include "bcm43xx_main.h"
-#include "bcm43xx_xmit.h"
-#include "bcm43xx_power.h"
-
-#include <linux/delay.h>
-
-
-static void tx_start(struct bcm43xx_pioqueue *queue)
-{
-	bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-			  BCM43xx_PIO_TXCTL_INIT);
-}
-
-static void tx_octet(struct bcm43xx_pioqueue *queue,
-		     u8 octet)
-{
-	if (queue->need_workarounds) {
-		bcm43xx_pio_write(queue, BCM43xx_PIO_TXDATA,
-				  octet);
-		bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-				  BCM43xx_PIO_TXCTL_WRITELO);
-	} else {
-		bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-				  BCM43xx_PIO_TXCTL_WRITELO);
-		bcm43xx_pio_write(queue, BCM43xx_PIO_TXDATA,
-				  octet);
-	}
-}
-
-static u16 tx_get_next_word(struct bcm43xx_txhdr *txhdr,
-			    const u8 *packet,
-			    unsigned int *pos)
-{
-	const u8 *source;
-	unsigned int i = *pos;
-	u16 ret;
-
-	if (i < sizeof(*txhdr)) {
-		source = (const u8 *)txhdr;
-	} else {
-		source = packet;
-		i -= sizeof(*txhdr);
-	}
-	ret = le16_to_cpu( *((__le16 *)(source + i)) );
-	*pos += 2;
-
-	return ret;
-}
-
-static void tx_data(struct bcm43xx_pioqueue *queue,
-		    struct bcm43xx_txhdr *txhdr,
-		    const u8 *packet,
-		    unsigned int octets)
-{
-	u16 data;
-	unsigned int i = 0;
-
-	if (queue->need_workarounds) {
-		data = tx_get_next_word(txhdr, packet, &i);
-		bcm43xx_pio_write(queue, BCM43xx_PIO_TXDATA, data);
-	}
-	bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-			  BCM43xx_PIO_TXCTL_WRITELO |
-			  BCM43xx_PIO_TXCTL_WRITEHI);
-	while (i < octets - 1) {
-		data = tx_get_next_word(txhdr, packet, &i);
-		bcm43xx_pio_write(queue, BCM43xx_PIO_TXDATA, data);
-	}
-	if (octets % 2)
-		tx_octet(queue, packet[octets - sizeof(*txhdr) - 1]);
-}
-
-static void tx_complete(struct bcm43xx_pioqueue *queue,
-			struct sk_buff *skb)
-{
-	if (queue->need_workarounds) {
-		bcm43xx_pio_write(queue, BCM43xx_PIO_TXDATA,
-				  skb->data[skb->len - 1]);
-		bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-				  BCM43xx_PIO_TXCTL_WRITELO |
-				  BCM43xx_PIO_TXCTL_COMPLETE);
-	} else {
-		bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-				  BCM43xx_PIO_TXCTL_COMPLETE);
-	}
-}
-
-static u16 generate_cookie(struct bcm43xx_pioqueue *queue,
-			   struct bcm43xx_pio_txpacket *packet)
-{
-	u16 cookie = 0x0000;
-	int packetindex;
-
-	/* We use the upper 4 bits for the PIO
-	 * controller ID and the lower 12 bits
-	 * for the packet index (in the cache).
-	 */
-	switch (queue->mmio_base) {
-	case BCM43xx_MMIO_PIO1_BASE:
-		break;
-	case BCM43xx_MMIO_PIO2_BASE:
-		cookie = 0x1000;
-		break;
-	case BCM43xx_MMIO_PIO3_BASE:
-		cookie = 0x2000;
-		break;
-	case BCM43xx_MMIO_PIO4_BASE:
-		cookie = 0x3000;
-		break;
-	default:
-		assert(0);
-	}
-	packetindex = pio_txpacket_getindex(packet);
-	assert(((u16)packetindex & 0xF000) == 0x0000);
-	cookie |= (u16)packetindex;
-
-	return cookie;
-}
-
-static
-struct bcm43xx_pioqueue * parse_cookie(struct bcm43xx_private *bcm,
-				       u16 cookie,
-				       struct bcm43xx_pio_txpacket **packet)
-{
-	struct bcm43xx_pio *pio = bcm43xx_current_pio(bcm);
-	struct bcm43xx_pioqueue *queue = NULL;
-	int packetindex;
-
-	switch (cookie & 0xF000) {
-	case 0x0000:
-		queue = pio->queue0;
-		break;
-	case 0x1000:
-		queue = pio->queue1;
-		break;
-	case 0x2000:
-		queue = pio->queue2;
-		break;
-	case 0x3000:
-		queue = pio->queue3;
-		break;
-	default:
-		assert(0);
-	}
-	packetindex = (cookie & 0x0FFF);
-	assert(packetindex >= 0 && packetindex < BCM43xx_PIO_MAXTXPACKETS);
-	*packet = &(queue->tx_packets_cache[packetindex]);
-
-	return queue;
-}
-
-static void pio_tx_write_fragment(struct bcm43xx_pioqueue *queue,
-				  struct sk_buff *skb,
-				  struct bcm43xx_pio_txpacket *packet)
-{
-	struct bcm43xx_txhdr txhdr;
-	unsigned int octets;
-
-	assert(skb_shinfo(skb)->nr_frags == 0);
-	bcm43xx_generate_txhdr(queue->bcm,
-			       &txhdr, skb->data, skb->len,
-			       (packet->xmitted_frags == 0),
-			       generate_cookie(queue, packet));
-
-	tx_start(queue);
-	octets = skb->len + sizeof(txhdr);
-	if (queue->need_workarounds)
-		octets--;
-	tx_data(queue, &txhdr, (u8 *)skb->data, octets);
-	tx_complete(queue, skb);
-}
-
-static void free_txpacket(struct bcm43xx_pio_txpacket *packet,
-			  int irq_context)
-{
-	struct bcm43xx_pioqueue *queue = packet->queue;
-
-	ieee80211_txb_free(packet->txb);
-	list_move(&packet->list, &queue->txfree);
-	queue->nr_txfree++;
-
-	assert(queue->tx_devq_used >= packet->xmitted_octets);
-	assert(queue->tx_devq_packets >= packet->xmitted_frags);
-	queue->tx_devq_used -= packet->xmitted_octets;
-	queue->tx_devq_packets -= packet->xmitted_frags;
-}
-
-static int pio_tx_packet(struct bcm43xx_pio_txpacket *packet)
-{
-	struct bcm43xx_pioqueue *queue = packet->queue;
-	struct ieee80211_txb *txb = packet->txb;
-	struct sk_buff *skb;
-	u16 octets;
-	int i;
-
-	for (i = packet->xmitted_frags; i < txb->nr_frags; i++) {
-		skb = txb->fragments[i];
-
-		octets = (u16)skb->len + sizeof(struct bcm43xx_txhdr);
-		assert(queue->tx_devq_size >= octets);
-		assert(queue->tx_devq_packets <= BCM43xx_PIO_MAXTXDEVQPACKETS);
-		assert(queue->tx_devq_used <= queue->tx_devq_size);
-		/* Check if there is sufficient free space on the device
-		 * TX queue. If not, return and let the TX tasklet
-		 * retry later.
-		 */
-		if (queue->tx_devq_packets == BCM43xx_PIO_MAXTXDEVQPACKETS)
-			return -EBUSY;
-		if (queue->tx_devq_used + octets > queue->tx_devq_size)
-			return -EBUSY;
-		/* Now poke the device. */
-		pio_tx_write_fragment(queue, skb, packet);
-
-		/* Account for the packet size.
-		 * (We must not overflow the device TX queue)
-		 */
-		queue->tx_devq_packets++;
-		queue->tx_devq_used += octets;
-
-		assert(packet->xmitted_frags < packet->txb->nr_frags);
-		packet->xmitted_frags++;
-		packet->xmitted_octets += octets;
-	}
-	list_move_tail(&packet->list, &queue->txrunning);
-
-	return 0;
-}
-
-static void tx_tasklet(unsigned long d)
-{
-	struct bcm43xx_pioqueue *queue = (struct bcm43xx_pioqueue *)d;
-	struct bcm43xx_private *bcm = queue->bcm;
-	unsigned long flags;
-	struct bcm43xx_pio_txpacket *packet, *tmp_packet;
-	int err;
-	u16 txctl;
-
-	spin_lock_irqsave(&bcm->irq_lock, flags);
-
-	if (queue->tx_frozen)
-		goto out_unlock;
-	txctl = bcm43xx_pio_read(queue, BCM43xx_PIO_TXCTL);
-	if (txctl & BCM43xx_PIO_TXCTL_SUSPEND)
-		goto out_unlock;
-
-	list_for_each_entry_safe(packet, tmp_packet, &queue->txqueue, list) {
-		assert(packet->xmitted_frags < packet->txb->nr_frags);
-		if (packet->xmitted_frags == 0) {
-			int i;
-			struct sk_buff *skb;
-
-			/* Check if the device queue is big
-			 * enough for every fragment. If not, drop the
-			 * whole packet.
-			 */
-			for (i = 0; i < packet->txb->nr_frags; i++) {
-				skb = packet->txb->fragments[i];
-				if (unlikely(skb->len > queue->tx_devq_size)) {
-					dprintkl(KERN_ERR PFX "PIO TX device queue too small. "
-							      "Dropping packet.\n");
-					free_txpacket(packet, 1);
-					goto next_packet;
-				}
-			}
-		}
-		/* Try to transmit the packet.
-		 * This may not completely succeed.
-		 */
-		err = pio_tx_packet(packet);
-		if (err)
-			break;
-	next_packet:
-		continue;
-	}
-out_unlock:
-	spin_unlock_irqrestore(&bcm->irq_lock, flags);
-}
-
-static void setup_txqueues(struct bcm43xx_pioqueue *queue)
-{
-	struct bcm43xx_pio_txpacket *packet;
-	int i;
-
-	queue->nr_txfree = BCM43xx_PIO_MAXTXPACKETS;
-	for (i = 0; i < BCM43xx_PIO_MAXTXPACKETS; i++) {
-		packet = &(queue->tx_packets_cache[i]);
-
-		packet->queue = queue;
-		INIT_LIST_HEAD(&packet->list);
-
-		list_add(&packet->list, &queue->txfree);
-	}
-}
-
-static
-struct bcm43xx_pioqueue * bcm43xx_setup_pioqueue(struct bcm43xx_private *bcm,
-						 u16 pio_mmio_base)
-{
-	struct bcm43xx_pioqueue *queue;
-	u32 value;
-	u16 qsize;
-
-	queue = kzalloc(sizeof(*queue), GFP_KERNEL);
-	if (!queue)
-		goto out;
-
-	queue->bcm = bcm;
-	queue->mmio_base = pio_mmio_base;
-	queue->need_workarounds = (bcm->current_core->rev < 3);
-
-	INIT_LIST_HEAD(&queue->txfree);
-	INIT_LIST_HEAD(&queue->txqueue);
-	INIT_LIST_HEAD(&queue->txrunning);
-	tasklet_init(&queue->txtask, tx_tasklet,
-		     (unsigned long)queue);
-
-	value = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
-	value &= ~BCM43xx_SBF_XFER_REG_BYTESWAP;
-	bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value);
-
-	qsize = bcm43xx_read16(bcm, queue->mmio_base + BCM43xx_PIO_TXQBUFSIZE);
-	if (qsize == 0) {
-		printk(KERN_ERR PFX "ERROR: This card does not support PIO "
-				    "operation mode. Please use DMA mode "
-				    "(module parameter pio=0).\n");
-		goto err_freequeue;
-	}
-	if (qsize <= BCM43xx_PIO_TXQADJUST) {
-		printk(KERN_ERR PFX "PIO tx device-queue too small (%u)\n",
-		       qsize);
-		goto err_freequeue;
-	}
-	qsize -= BCM43xx_PIO_TXQADJUST;
-	queue->tx_devq_size = qsize;
-
-	setup_txqueues(queue);
-
-out:
-	return queue;
-
-err_freequeue:
-	kfree(queue);
-	queue = NULL;
-	goto out;
-}
-
-static void cancel_transfers(struct bcm43xx_pioqueue *queue)
-{
-	struct bcm43xx_pio_txpacket *packet, *tmp_packet;
-
-	netif_tx_disable(queue->bcm->net_dev);
-	tasklet_disable(&queue->txtask);
-
-	list_for_each_entry_safe(packet, tmp_packet, &queue->txrunning, list)
-		free_txpacket(packet, 0);
-	list_for_each_entry_safe(packet, tmp_packet, &queue->txqueue, list)
-		free_txpacket(packet, 0);
-}
-
-static void bcm43xx_destroy_pioqueue(struct bcm43xx_pioqueue *queue)
-{
-	if (!queue)
-		return;
-
-	cancel_transfers(queue);
-	kfree(queue);
-}
-
-void bcm43xx_pio_free(struct bcm43xx_private *bcm)
-{
-	struct bcm43xx_pio *pio;
-
-	if (!bcm43xx_using_pio(bcm))
-		return;
-	pio = bcm43xx_current_pio(bcm);
-
-	bcm43xx_destroy_pioqueue(pio->queue3);
-	pio->queue3 = NULL;
-	bcm43xx_destroy_pioqueue(pio->queue2);
-	pio->queue2 = NULL;
-	bcm43xx_destroy_pioqueue(pio->queue1);
-	pio->queue1 = NULL;
-	bcm43xx_destroy_pioqueue(pio->queue0);
-	pio->queue0 = NULL;
-}
-
-int bcm43xx_pio_init(struct bcm43xx_private *bcm)
-{
-	struct bcm43xx_pio *pio = bcm43xx_current_pio(bcm);
-	struct bcm43xx_pioqueue *queue;
-	int err = -ENOMEM;
-
-	queue = bcm43xx_setup_pioqueue(bcm, BCM43xx_MMIO_PIO1_BASE);
-	if (!queue)
-		goto out;
-	pio->queue0 = queue;
-
-	queue = bcm43xx_setup_pioqueue(bcm, BCM43xx_MMIO_PIO2_BASE);
-	if (!queue)
-		goto err_destroy0;
-	pio->queue1 = queue;
-
-	queue = bcm43xx_setup_pioqueue(bcm, BCM43xx_MMIO_PIO3_BASE);
-	if (!queue)
-		goto err_destroy1;
-	pio->queue2 = queue;
-
-	queue = bcm43xx_setup_pioqueue(bcm, BCM43xx_MMIO_PIO4_BASE);
-	if (!queue)
-		goto err_destroy2;
-	pio->queue3 = queue;
-
-	if (bcm->current_core->rev < 3)
-		bcm->irq_savedstate |= BCM43xx_IRQ_PIO_WORKAROUND;
-
-	dprintk(KERN_INFO PFX "PIO initialized\n");
-	err = 0;
-out:
-	return err;
-
-err_destroy2:
-	bcm43xx_destroy_pioqueue(pio->queue2);
-	pio->queue2 = NULL;
-err_destroy1:
-	bcm43xx_destroy_pioqueue(pio->queue1);
-	pio->queue1 = NULL;
-err_destroy0:
-	bcm43xx_destroy_pioqueue(pio->queue0);
-	pio->queue0 = NULL;
-	goto out;
-}
-
-int bcm43xx_pio_tx(struct bcm43xx_private *bcm,
-		   struct ieee80211_txb *txb)
-{
-	struct bcm43xx_pioqueue *queue = bcm43xx_current_pio(bcm)->queue1;
-	struct bcm43xx_pio_txpacket *packet;
-
-	assert(!queue->tx_suspended);
-	assert(!list_empty(&queue->txfree));
-
-	packet = list_entry(queue->txfree.next, struct bcm43xx_pio_txpacket, list);
-	packet->txb = txb;
-	packet->xmitted_frags = 0;
-	packet->xmitted_octets = 0;
-	list_move_tail(&packet->list, &queue->txqueue);
-	queue->nr_txfree--;
-	assert(queue->nr_txfree < BCM43xx_PIO_MAXTXPACKETS);
-
-	/* Suspend TX, if we are out of packets in the "free" queue. */
-	if (list_empty(&queue->txfree)) {
-		netif_stop_queue(queue->bcm->net_dev);
-		queue->tx_suspended = 1;
-	}
-
-	tasklet_schedule(&queue->txtask);
-
-	return 0;
-}
-
-void bcm43xx_pio_handle_xmitstatus(struct bcm43xx_private *bcm,
-				   struct bcm43xx_xmitstatus *status)
-{
-	struct bcm43xx_pioqueue *queue;
-	struct bcm43xx_pio_txpacket *packet;
-
-	queue = parse_cookie(bcm, status->cookie, &packet);
-	assert(queue);
-
-	free_txpacket(packet, 1);
-	if (queue->tx_suspended) {
-		queue->tx_suspended = 0;
-		netif_wake_queue(queue->bcm->net_dev);
-	}
-	/* If there are packets on the txqueue, poke the tasklet
-	 * to transmit them.
-	 */
-	if (!list_empty(&queue->txqueue))
-		tasklet_schedule(&queue->txtask);
-}
-
-static void pio_rx_error(struct bcm43xx_pioqueue *queue,
-			 int clear_buffers,
-			 const char *error)
-{
-	int i;
-
-	printkl("PIO RX error: %s\n", error);
-	bcm43xx_pio_write(queue, BCM43xx_PIO_RXCTL,
-			  BCM43xx_PIO_RXCTL_READY);
-	if (clear_buffers) {
-		assert(queue->mmio_base == BCM43xx_MMIO_PIO1_BASE);
-		for (i = 0; i < 15; i++) {
-			/* Dummy read. */
-			bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA);
-		}
-	}
-}
-
-void bcm43xx_pio_rx(struct bcm43xx_pioqueue *queue)
-{
-	__le16 preamble[21] = { 0 };
-	struct bcm43xx_rxhdr *rxhdr;
-	u16 tmp, len, rxflags2;
-	int i, preamble_readwords;
-	struct sk_buff *skb;
-
-	tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_RXCTL);
-	if (!(tmp & BCM43xx_PIO_RXCTL_DATAAVAILABLE))
-		return;
-	bcm43xx_pio_write(queue, BCM43xx_PIO_RXCTL,
-			  BCM43xx_PIO_RXCTL_DATAAVAILABLE);
-
-	for (i = 0; i < 10; i++) {
-		tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_RXCTL);
-		if (tmp & BCM43xx_PIO_RXCTL_READY)
-			goto data_ready;
-		udelay(10);
-	}
-	dprintkl(KERN_ERR PFX "PIO RX timed out\n");
-	return;
-data_ready:
-
-	len = bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA);
-	if (unlikely(len > 0x700)) {
-		pio_rx_error(queue, 0, "len > 0x700");
-		return;
-	}
-	if (unlikely(len == 0 && queue->mmio_base != BCM43xx_MMIO_PIO4_BASE)) {
-		pio_rx_error(queue, 0, "len == 0");
-		return;
-	}
-	preamble[0] = cpu_to_le16(len);
-	if (queue->mmio_base == BCM43xx_MMIO_PIO4_BASE)
-		preamble_readwords = 14 / sizeof(u16);
-	else
-		preamble_readwords = 18 / sizeof(u16);
-	for (i = 0; i < preamble_readwords; i++) {
-		tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA);
-		preamble[i + 1] = cpu_to_le16(tmp);
-	}
-	rxhdr = (struct bcm43xx_rxhdr *)preamble;
-	rxflags2 = le16_to_cpu(rxhdr->flags2);
-	if (unlikely(rxflags2 & BCM43xx_RXHDR_FLAGS2_INVALIDFRAME)) {
-		pio_rx_error(queue,
-			     (queue->mmio_base == BCM43xx_MMIO_PIO1_BASE),
-			     "invalid frame");
-		return;
-	}
-	if (queue->mmio_base == BCM43xx_MMIO_PIO4_BASE) {
-		/* We received an xmit status. */
-		struct bcm43xx_hwxmitstatus *hw;
-		struct bcm43xx_xmitstatus stat;
-
-		hw = (struct bcm43xx_hwxmitstatus *)(preamble + 1);
-		stat.cookie = le16_to_cpu(hw->cookie);
-		stat.flags = hw->flags;
-		stat.cnt1 = hw->cnt1;
-		stat.cnt2 = hw->cnt2;
-		stat.seq = le16_to_cpu(hw->seq);
-		stat.unknown = le16_to_cpu(hw->unknown);
-
-		bcm43xx_debugfs_log_txstat(queue->bcm, &stat);
-		bcm43xx_pio_handle_xmitstatus(queue->bcm, &stat);
-
-		return;
-	}
-
-	skb = dev_alloc_skb(len);
-	if (unlikely(!skb)) {
-		pio_rx_error(queue, 1, "OOM");
-		return;
-	}
-	skb_put(skb, len);
-	for (i = 0; i < len - 1; i += 2) {
-		tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA);
-		*((__le16 *)(skb->data + i)) = cpu_to_le16(tmp);
-	}
-	if (len % 2) {
-		tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA);
-		skb->data[len - 1] = (tmp & 0x00FF);
-/* The specs say the following is required, but
- * it is wrong and corrupts the PLCP. If we don't do
- * this, the PLCP seems to be correct. So ifdef it out for now.
- */
-#if 0
-		if (rxflags2 & BCM43xx_RXHDR_FLAGS2_TYPE2FRAME)
-			skb->data[2] = (tmp & 0xFF00) >> 8;
-		else
-			skb->data[0] = (tmp & 0xFF00) >> 8;
-#endif
-	}
-	skb_trim(skb, len - IEEE80211_FCS_LEN);
-	bcm43xx_rx(queue->bcm, skb, rxhdr);
-}
-
-void bcm43xx_pio_tx_suspend(struct bcm43xx_pioqueue *queue)
-{
-	bcm43xx_power_saving_ctl_bits(queue->bcm, -1, 1);
-	bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-			  bcm43xx_pio_read(queue, BCM43xx_PIO_TXCTL)
-			  | BCM43xx_PIO_TXCTL_SUSPEND);
-}
-
-void bcm43xx_pio_tx_resume(struct bcm43xx_pioqueue *queue)
-{
-	bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-			  bcm43xx_pio_read(queue, BCM43xx_PIO_TXCTL)
-			  & ~BCM43xx_PIO_TXCTL_SUSPEND);
-	bcm43xx_power_saving_ctl_bits(queue->bcm, -1, -1);
-	if (!list_empty(&queue->txqueue))
-		tasklet_schedule(&queue->txtask);
-}
-
-void bcm43xx_pio_freeze_txqueues(struct bcm43xx_private *bcm)
-{
-	struct bcm43xx_pio *pio;
-
-	assert(bcm43xx_using_pio(bcm));
-	pio = bcm43xx_current_pio(bcm);
-	pio->queue0->tx_frozen = 1;
-	pio->queue1->tx_frozen = 1;
-	pio->queue2->tx_frozen = 1;
-	pio->queue3->tx_frozen = 1;
-}
-
-void bcm43xx_pio_thaw_txqueues(struct bcm43xx_private *bcm)
-{
-	struct bcm43xx_pio *pio;
-
-	assert(bcm43xx_using_pio(bcm));
-	pio = bcm43xx_current_pio(bcm);
-	pio->queue0->tx_frozen = 0;
-	pio->queue1->tx_frozen = 0;
-	pio->queue2->tx_frozen = 0;
-	pio->queue3->tx_frozen = 0;
-	if (!list_empty(&pio->queue0->txqueue))
-		tasklet_schedule(&pio->queue0->txtask);
-	if (!list_empty(&pio->queue1->txqueue))
-		tasklet_schedule(&pio->queue1->txtask);
-	if (!list_empty(&pio->queue2->txqueue))
-		tasklet_schedule(&pio->queue2->txtask);
-	if (!list_empty(&pio->queue3->txqueue))
-		tasklet_schedule(&pio->queue3->txtask);
-}
-
-