rt2x00: move under ralink vendor directory

Part of reorganising wireless drivers directory and Kconfig.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 0 insertions, 1549 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
deleted file mode 100644
index 5639ed8..0000000
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ /dev/null
@@ -1,1549 +0,0 @@
-/*
-	Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
-	Copyright (C) 2004 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
-	<http://rt2x00.serialmonkey.com>
-
-	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, see <http://www.gnu.org/licenses/>.
- */
-
-/*
-	Module: rt2x00lib
-	Abstract: rt2x00 generic device routines.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/log2.h>
-
-#include "rt2x00.h"
-#include "rt2x00lib.h"
-
-/*
- * Utility functions.
- */
-u32 rt2x00lib_get_bssidx(struct rt2x00_dev *rt2x00dev,
-			 struct ieee80211_vif *vif)
-{
-	/*
-	 * When in STA mode, bssidx is always 0 otherwise local_address[5]
-	 * contains the bss number, see BSS_ID_MASK comments for details.
-	 */
-	if (rt2x00dev->intf_sta_count)
-		return 0;
-	return vif->addr[5] & (rt2x00dev->ops->max_ap_intf - 1);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_get_bssidx);
-
-/*
- * Radio control handlers.
- */
-int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev)
-{
-	int status;
-
-	/*
-	 * Don't enable the radio twice.
-	 * And check if the hardware button has been disabled.
-	 */
-	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		return 0;
-
-	/*
-	 * Initialize all data queues.
-	 */
-	rt2x00queue_init_queues(rt2x00dev);
-
-	/*
-	 * Enable radio.
-	 */
-	status =
-	    rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_ON);
-	if (status)
-		return status;
-
-	rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_ON);
-
-	rt2x00leds_led_radio(rt2x00dev, true);
-	rt2x00led_led_activity(rt2x00dev, true);
-
-	set_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags);
-
-	/*
-	 * Enable queues.
-	 */
-	rt2x00queue_start_queues(rt2x00dev);
-	rt2x00link_start_tuner(rt2x00dev);
-	rt2x00link_start_agc(rt2x00dev);
-	if (rt2x00_has_cap_vco_recalibration(rt2x00dev))
-		rt2x00link_start_vcocal(rt2x00dev);
-
-	/*
-	 * Start watchdog monitoring.
-	 */
-	rt2x00link_start_watchdog(rt2x00dev);
-
-	return 0;
-}
-
-void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev)
-{
-	if (!test_and_clear_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		return;
-
-	/*
-	 * Stop watchdog monitoring.
-	 */
-	rt2x00link_stop_watchdog(rt2x00dev);
-
-	/*
-	 * Stop all queues
-	 */
-	rt2x00link_stop_agc(rt2x00dev);
-	if (rt2x00_has_cap_vco_recalibration(rt2x00dev))
-		rt2x00link_stop_vcocal(rt2x00dev);
-	rt2x00link_stop_tuner(rt2x00dev);
-	rt2x00queue_stop_queues(rt2x00dev);
-	rt2x00queue_flush_queues(rt2x00dev, true);
-
-	/*
-	 * Disable radio.
-	 */
-	rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_OFF);
-	rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF);
-	rt2x00led_led_activity(rt2x00dev, false);
-	rt2x00leds_led_radio(rt2x00dev, false);
-}
-
-static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac,
-					  struct ieee80211_vif *vif)
-{
-	struct rt2x00_dev *rt2x00dev = data;
-	struct rt2x00_intf *intf = vif_to_intf(vif);
-
-	/*
-	 * It is possible the radio was disabled while the work had been
-	 * scheduled. If that happens we should return here immediately,
-	 * note that in the spinlock protected area above the delayed_flags
-	 * have been cleared correctly.
-	 */
-	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		return;
-
-	if (test_and_clear_bit(DELAYED_UPDATE_BEACON, &intf->delayed_flags)) {
-		mutex_lock(&intf->beacon_skb_mutex);
-		rt2x00queue_update_beacon(rt2x00dev, vif);
-		mutex_unlock(&intf->beacon_skb_mutex);
-	}
-}
-
-static void rt2x00lib_intf_scheduled(struct work_struct *work)
-{
-	struct rt2x00_dev *rt2x00dev =
-	    container_of(work, struct rt2x00_dev, intf_work);
-
-	/*
-	 * Iterate over each interface and perform the
-	 * requested configurations.
-	 */
-	ieee80211_iterate_active_interfaces(rt2x00dev->hw,
-					    IEEE80211_IFACE_ITER_RESUME_ALL,
-					    rt2x00lib_intf_scheduled_iter,
-					    rt2x00dev);
-}
-
-static void rt2x00lib_autowakeup(struct work_struct *work)
-{
-	struct rt2x00_dev *rt2x00dev =
-	    container_of(work, struct rt2x00_dev, autowakeup_work.work);
-
-	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
-		return;
-
-	if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
-		rt2x00_err(rt2x00dev, "Device failed to wakeup\n");
-	clear_bit(CONFIG_POWERSAVING, &rt2x00dev->flags);
-}
-
-/*
- * Interrupt context handlers.
- */
-static void rt2x00lib_bc_buffer_iter(void *data, u8 *mac,
-				     struct ieee80211_vif *vif)
-{
-	struct ieee80211_tx_control control = {};
-	struct rt2x00_dev *rt2x00dev = data;
-	struct sk_buff *skb;
-
-	/*
-	 * Only AP mode interfaces do broad- and multicast buffering
-	 */
-	if (vif->type != NL80211_IFTYPE_AP)
-		return;
-
-	/*
-	 * Send out buffered broad- and multicast frames
-	 */
-	skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif);
-	while (skb) {
-		rt2x00mac_tx(rt2x00dev->hw, &control, skb);
-		skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif);
-	}
-}
-
-static void rt2x00lib_beaconupdate_iter(void *data, u8 *mac,
-					struct ieee80211_vif *vif)
-{
-	struct rt2x00_dev *rt2x00dev = data;
-
-	if (vif->type != NL80211_IFTYPE_AP &&
-	    vif->type != NL80211_IFTYPE_ADHOC &&
-	    vif->type != NL80211_IFTYPE_MESH_POINT &&
-	    vif->type != NL80211_IFTYPE_WDS)
-		return;
-
-	/*
-	 * Update the beacon without locking. This is safe on PCI devices
-	 * as they only update the beacon periodically here. This should
-	 * never be called for USB devices.
-	 */
-	WARN_ON(rt2x00_is_usb(rt2x00dev));
-	rt2x00queue_update_beacon(rt2x00dev, vif);
-}
-
-void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
-{
-	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		return;
-
-	/* send buffered bc/mc frames out for every bssid */
-	ieee80211_iterate_active_interfaces_atomic(
-		rt2x00dev->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
-		rt2x00lib_bc_buffer_iter, rt2x00dev);
-	/*
-	 * Devices with pre tbtt interrupt don't need to update the beacon
-	 * here as they will fetch the next beacon directly prior to
-	 * transmission.
-	 */
-	if (rt2x00_has_cap_pre_tbtt_interrupt(rt2x00dev))
-		return;
-
-	/* fetch next beacon */
-	ieee80211_iterate_active_interfaces_atomic(
-		rt2x00dev->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
-		rt2x00lib_beaconupdate_iter, rt2x00dev);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_beacondone);
-
-void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev)
-{
-	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		return;
-
-	/* fetch next beacon */
-	ieee80211_iterate_active_interfaces_atomic(
-		rt2x00dev->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
-		rt2x00lib_beaconupdate_iter, rt2x00dev);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_pretbtt);
-
-void rt2x00lib_dmastart(struct queue_entry *entry)
-{
-	set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
-	rt2x00queue_index_inc(entry, Q_INDEX);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_dmastart);
-
-void rt2x00lib_dmadone(struct queue_entry *entry)
-{
-	set_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags);
-	clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
-	rt2x00queue_index_inc(entry, Q_INDEX_DMA_DONE);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_dmadone);
-
-static inline int rt2x00lib_txdone_bar_status(struct queue_entry *entry)
-{
-	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
-	struct ieee80211_bar *bar = (void *) entry->skb->data;
-	struct rt2x00_bar_list_entry *bar_entry;
-	int ret;
-
-	if (likely(!ieee80211_is_back_req(bar->frame_control)))
-		return 0;
-
-	/*
-	 * Unlike all other frames, the status report for BARs does
-	 * not directly come from the hardware as it is incapable of
-	 * matching a BA to a previously send BAR. The hardware will
-	 * report all BARs as if they weren't acked at all.
-	 *
-	 * Instead the RX-path will scan for incoming BAs and set the
-	 * block_acked flag if it sees one that was likely caused by
-	 * a BAR from us.
-	 *
-	 * Remove remaining BARs here and return their status for
-	 * TX done processing.
-	 */
-	ret = 0;
-	rcu_read_lock();
-	list_for_each_entry_rcu(bar_entry, &rt2x00dev->bar_list, list) {
-		if (bar_entry->entry != entry)
-			continue;
-
-		spin_lock_bh(&rt2x00dev->bar_list_lock);
-		/* Return whether this BAR was blockacked or not */
-		ret = bar_entry->block_acked;
-		/* Remove the BAR from our checklist */
-		list_del_rcu(&bar_entry->list);
-		spin_unlock_bh(&rt2x00dev->bar_list_lock);
-		kfree_rcu(bar_entry, head);
-
-		break;
-	}
-	rcu_read_unlock();
-
-	return ret;
-}
-
-void rt2x00lib_txdone(struct queue_entry *entry,
-		      struct txdone_entry_desc *txdesc)
-{
-	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
-	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
-	unsigned int header_length, i;
-	u8 rate_idx, rate_flags, retry_rates;
-	u8 skbdesc_flags = skbdesc->flags;
-	bool success;
-
-	/*
-	 * Unmap the skb.
-	 */
-	rt2x00queue_unmap_skb(entry);
-
-	/*
-	 * Remove the extra tx headroom from the skb.
-	 */
-	skb_pull(entry->skb, rt2x00dev->extra_tx_headroom);
-
-	/*
-	 * Signal that the TX descriptor is no longer in the skb.
-	 */
-	skbdesc->flags &= ~SKBDESC_DESC_IN_SKB;
-
-	/*
-	 * Determine the length of 802.11 header.
-	 */
-	header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
-
-	/*
-	 * Remove L2 padding which was added during
-	 */
-	if (rt2x00_has_cap_flag(rt2x00dev, REQUIRE_L2PAD))
-		rt2x00queue_remove_l2pad(entry->skb, header_length);
-
-	/*
-	 * If the IV/EIV data was stripped from the frame before it was
-	 * passed to the hardware, we should now reinsert it again because
-	 * mac80211 will expect the same data to be present it the
-	 * frame as it was passed to us.
-	 */
-	if (rt2x00_has_cap_hw_crypto(rt2x00dev))
-		rt2x00crypto_tx_insert_iv(entry->skb, header_length);
-
-	/*
-	 * Send frame to debugfs immediately, after this call is completed
-	 * we are going to overwrite the skb->cb array.
-	 */
-	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TXDONE, entry->skb);
-
-	/*
-	 * Determine if the frame has been successfully transmitted and
-	 * remove BARs from our check list while checking for their
-	 * TX status.
-	 */
-	success =
-	    rt2x00lib_txdone_bar_status(entry) ||
-	    test_bit(TXDONE_SUCCESS, &txdesc->flags) ||
-	    test_bit(TXDONE_UNKNOWN, &txdesc->flags);
-
-	/*
-	 * Update TX statistics.
-	 */
-	rt2x00dev->link.qual.tx_success += success;
-	rt2x00dev->link.qual.tx_failed += !success;
-
-	rate_idx = skbdesc->tx_rate_idx;
-	rate_flags = skbdesc->tx_rate_flags;
-	retry_rates = test_bit(TXDONE_FALLBACK, &txdesc->flags) ?
-	    (txdesc->retry + 1) : 1;
-
-	/*
-	 * Initialize TX status
-	 */
-	memset(&tx_info->status, 0, sizeof(tx_info->status));
-	tx_info->status.ack_signal = 0;
-
-	/*
-	 * Frame was send with retries, hardware tried
-	 * different rates to send out the frame, at each
-	 * retry it lowered the rate 1 step except when the
-	 * lowest rate was used.
-	 */
-	for (i = 0; i < retry_rates && i < IEEE80211_TX_MAX_RATES; i++) {
-		tx_info->status.rates[i].idx = rate_idx - i;
-		tx_info->status.rates[i].flags = rate_flags;
-
-		if (rate_idx - i == 0) {
-			/*
-			 * The lowest rate (index 0) was used until the
-			 * number of max retries was reached.
-			 */
-			tx_info->status.rates[i].count = retry_rates - i;
-			i++;
-			break;
-		}
-		tx_info->status.rates[i].count = 1;
-	}
-	if (i < (IEEE80211_TX_MAX_RATES - 1))
-		tx_info->status.rates[i].idx = -1; /* terminate */
-
-	if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) {
-		if (success)
-			tx_info->flags |= IEEE80211_TX_STAT_ACK;
-		else
-			rt2x00dev->low_level_stats.dot11ACKFailureCount++;
-	}
-
-	/*
-	 * Every single frame has it's own tx status, hence report
-	 * every frame as ampdu of size 1.
-	 *
-	 * TODO: if we can find out how many frames were aggregated
-	 * by the hw we could provide the real ampdu_len to mac80211
-	 * which would allow the rc algorithm to better decide on
-	 * which rates are suitable.
-	 */
-	if (test_bit(TXDONE_AMPDU, &txdesc->flags) ||
-	    tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
-		tx_info->flags |= IEEE80211_TX_STAT_AMPDU;
-		tx_info->status.ampdu_len = 1;
-		tx_info->status.ampdu_ack_len = success ? 1 : 0;
-
-		if (!success)
-			tx_info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
-	}
-
-	if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
-		if (success)
-			rt2x00dev->low_level_stats.dot11RTSSuccessCount++;
-		else
-			rt2x00dev->low_level_stats.dot11RTSFailureCount++;
-	}
-
-	/*
-	 * Only send the status report to mac80211 when it's a frame
-	 * that originated in mac80211. If this was a extra frame coming
-	 * through a mac80211 library call (RTS/CTS) then we should not
-	 * send the status report back.
-	 */
-	if (!(skbdesc_flags & SKBDESC_NOT_MAC80211)) {
-		if (rt2x00_has_cap_flag(rt2x00dev, REQUIRE_TASKLET_CONTEXT))
-			ieee80211_tx_status(rt2x00dev->hw, entry->skb);
-		else
-			ieee80211_tx_status_ni(rt2x00dev->hw, entry->skb);
-	} else
-		dev_kfree_skb_any(entry->skb);
-
-	/*
-	 * Make this entry available for reuse.
-	 */
-	entry->skb = NULL;
-	entry->flags = 0;
-
-	rt2x00dev->ops->lib->clear_entry(entry);
-
-	rt2x00queue_index_inc(entry, Q_INDEX_DONE);
-
-	/*
-	 * If the data queue was below the threshold before the txdone
-	 * handler we must make sure the packet queue in the mac80211 stack
-	 * is reenabled when the txdone handler has finished. This has to be
-	 * serialized with rt2x00mac_tx(), otherwise we can wake up queue
-	 * before it was stopped.
-	 */
-	spin_lock_bh(&entry->queue->tx_lock);
-	if (!rt2x00queue_threshold(entry->queue))
-		rt2x00queue_unpause_queue(entry->queue);
-	spin_unlock_bh(&entry->queue->tx_lock);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_txdone);
-
-void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status)
-{
-	struct txdone_entry_desc txdesc;
-
-	txdesc.flags = 0;
-	__set_bit(status, &txdesc.flags);
-	txdesc.retry = 0;
-
-	rt2x00lib_txdone(entry, &txdesc);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_txdone_noinfo);
-
-static u8 *rt2x00lib_find_ie(u8 *data, unsigned int len, u8 ie)
-{
-	struct ieee80211_mgmt *mgmt = (void *)data;
-	u8 *pos, *end;
-
-	pos = (u8 *)mgmt->u.beacon.variable;
-	end = data + len;
-	while (pos < end) {
-		if (pos + 2 + pos[1] > end)
-			return NULL;
-
-		if (pos[0] == ie)
-			return pos;
-
-		pos += 2 + pos[1];
-	}
-
-	return NULL;
-}
-
-static void rt2x00lib_sleep(struct work_struct *work)
-{
-	struct rt2x00_dev *rt2x00dev =
-	    container_of(work, struct rt2x00_dev, sleep_work);
-
-	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
-		return;
-
-	/*
-	 * Check again is powersaving is enabled, to prevent races from delayed
-	 * work execution.
-	 */
-	if (!test_bit(CONFIG_POWERSAVING, &rt2x00dev->flags))
-		rt2x00lib_config(rt2x00dev, &rt2x00dev->hw->conf,
-				 IEEE80211_CONF_CHANGE_PS);
-}
-
-static void rt2x00lib_rxdone_check_ba(struct rt2x00_dev *rt2x00dev,
-				      struct sk_buff *skb,
-				      struct rxdone_entry_desc *rxdesc)
-{
-	struct rt2x00_bar_list_entry *entry;
-	struct ieee80211_bar *ba = (void *)skb->data;
-
-	if (likely(!ieee80211_is_back(ba->frame_control)))
-		return;
-
-	if (rxdesc->size < sizeof(*ba) + FCS_LEN)
-		return;
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(entry, &rt2x00dev->bar_list, list) {
-
-		if (ba->start_seq_num != entry->start_seq_num)
-			continue;
-
-#define TID_CHECK(a, b) (						\
-	((a) & cpu_to_le16(IEEE80211_BAR_CTRL_TID_INFO_MASK)) ==	\
-	((b) & cpu_to_le16(IEEE80211_BAR_CTRL_TID_INFO_MASK)))		\
-
-		if (!TID_CHECK(ba->control, entry->control))
-			continue;
-
-#undef TID_CHECK
-
-		if (!ether_addr_equal_64bits(ba->ra, entry->ta))
-			continue;
-
-		if (!ether_addr_equal_64bits(ba->ta, entry->ra))
-			continue;
-
-		/* Mark BAR since we received the according BA */
-		spin_lock_bh(&rt2x00dev->bar_list_lock);
-		entry->block_acked = 1;
-		spin_unlock_bh(&rt2x00dev->bar_list_lock);
-		break;
-	}
-	rcu_read_unlock();
-
-}
-
-static void rt2x00lib_rxdone_check_ps(struct rt2x00_dev *rt2x00dev,
-				      struct sk_buff *skb,
-				      struct rxdone_entry_desc *rxdesc)
-{
-	struct ieee80211_hdr *hdr = (void *) skb->data;
-	struct ieee80211_tim_ie *tim_ie;
-	u8 *tim;
-	u8 tim_len;
-	bool cam;
-
-	/* If this is not a beacon, or if mac80211 has no powersaving
-	 * configured, or if the device is already in powersaving mode
-	 * we can exit now. */
-	if (likely(!ieee80211_is_beacon(hdr->frame_control) ||
-		   !(rt2x00dev->hw->conf.flags & IEEE80211_CONF_PS)))
-		return;
-
-	/* min. beacon length + FCS_LEN */
-	if (skb->len <= 40 + FCS_LEN)
-		return;
-
-	/* and only beacons from the associated BSSID, please */
-	if (!(rxdesc->dev_flags & RXDONE_MY_BSS) ||
-	    !rt2x00dev->aid)
-		return;
-
-	rt2x00dev->last_beacon = jiffies;
-
-	tim = rt2x00lib_find_ie(skb->data, skb->len - FCS_LEN, WLAN_EID_TIM);
-	if (!tim)
-		return;
-
-	if (tim[1] < sizeof(*tim_ie))
-		return;
-
-	tim_len = tim[1];
-	tim_ie = (struct ieee80211_tim_ie *) &tim[2];
-
-	/* Check whenever the PHY can be turned off again. */
-
-	/* 1. What about buffered unicast traffic for our AID? */
-	cam = ieee80211_check_tim(tim_ie, tim_len, rt2x00dev->aid);
-
-	/* 2. Maybe the AP wants to send multicast/broadcast data? */
-	cam |= (tim_ie->bitmap_ctrl & 0x01);
-
-	if (!cam && !test_bit(CONFIG_POWERSAVING, &rt2x00dev->flags))
-		queue_work(rt2x00dev->workqueue, &rt2x00dev->sleep_work);
-}
-
-static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev,
-					struct rxdone_entry_desc *rxdesc)
-{
-	struct ieee80211_supported_band *sband;
-	const struct rt2x00_rate *rate;
-	unsigned int i;
-	int signal = rxdesc->signal;
-	int type = (rxdesc->dev_flags & RXDONE_SIGNAL_MASK);
-
-	switch (rxdesc->rate_mode) {
-	case RATE_MODE_CCK:
-	case RATE_MODE_OFDM:
-		/*
-		 * For non-HT rates the MCS value needs to contain the
-		 * actually used rate modulation (CCK or OFDM).
-		 */
-		if (rxdesc->dev_flags & RXDONE_SIGNAL_MCS)
-			signal = RATE_MCS(rxdesc->rate_mode, signal);
-
-		sband = &rt2x00dev->bands[rt2x00dev->curr_band];
-		for (i = 0; i < sband->n_bitrates; i++) {
-			rate = rt2x00_get_rate(sband->bitrates[i].hw_value);
-			if (((type == RXDONE_SIGNAL_PLCP) &&
-			     (rate->plcp == signal)) ||
-			    ((type == RXDONE_SIGNAL_BITRATE) &&
-			      (rate->bitrate == signal)) ||
-			    ((type == RXDONE_SIGNAL_MCS) &&
-			      (rate->mcs == signal))) {
-				return i;
-			}
-		}
-		break;
-	case RATE_MODE_HT_MIX:
-	case RATE_MODE_HT_GREENFIELD:
-		if (signal >= 0 && signal <= 76)
-			return signal;
-		break;
-	default:
-		break;
-	}
-
-	rt2x00_warn(rt2x00dev, "Frame received with unrecognized signal, mode=0x%.4x, signal=0x%.4x, type=%d\n",
-		    rxdesc->rate_mode, signal, type);
-	return 0;
-}
-
-void rt2x00lib_rxdone(struct queue_entry *entry, gfp_t gfp)
-{
-	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
-	struct rxdone_entry_desc rxdesc;
-	struct sk_buff *skb;
-	struct ieee80211_rx_status *rx_status;
-	unsigned int header_length;
-	int rate_idx;
-
-	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) ||
-	    !test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		goto submit_entry;
-
-	if (test_bit(ENTRY_DATA_IO_FAILED, &entry->flags))
-		goto submit_entry;
-
-	/*
-	 * Allocate a new sk_buffer. If no new buffer available, drop the
-	 * received frame and reuse the existing buffer.
-	 */
-	skb = rt2x00queue_alloc_rxskb(entry, gfp);
-	if (!skb)
-		goto submit_entry;
-
-	/*
-	 * Unmap the skb.
-	 */
-	rt2x00queue_unmap_skb(entry);
-
-	/*
-	 * Extract the RXD details.
-	 */
-	memset(&rxdesc, 0, sizeof(rxdesc));
-	rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc);
-
-	/*
-	 * Check for valid size in case we get corrupted descriptor from
-	 * hardware.
-	 */
-	if (unlikely(rxdesc.size == 0 ||
-		     rxdesc.size > entry->queue->data_size)) {
-		rt2x00_err(rt2x00dev, "Wrong frame size %d max %d\n",
-			   rxdesc.size, entry->queue->data_size);
-		dev_kfree_skb(entry->skb);
-		goto renew_skb;
-	}
-
-	/*
-	 * The data behind the ieee80211 header must be
-	 * aligned on a 4 byte boundary.
-	 */
-	header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
-
-	/*
-	 * Hardware might have stripped the IV/EIV/ICV data,
-	 * in that case it is possible that the data was
-	 * provided separately (through hardware descriptor)
-	 * in which case we should reinsert the data into the frame.
-	 */
-	if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) &&
-	    (rxdesc.flags & RX_FLAG_IV_STRIPPED))
-		rt2x00crypto_rx_insert_iv(entry->skb, header_length,
-					  &rxdesc);
-	else if (header_length &&
-		 (rxdesc.size > header_length) &&
-		 (rxdesc.dev_flags & RXDONE_L2PAD))
-		rt2x00queue_remove_l2pad(entry->skb, header_length);
-
-	/* Trim buffer to correct size */
-	skb_trim(entry->skb, rxdesc.size);
-
-	/*
-	 * Translate the signal to the correct bitrate index.
-	 */
-	rate_idx = rt2x00lib_rxdone_read_signal(rt2x00dev, &rxdesc);
-	if (rxdesc.rate_mode == RATE_MODE_HT_MIX ||
-	    rxdesc.rate_mode == RATE_MODE_HT_GREENFIELD)
-		rxdesc.flags |= RX_FLAG_HT;
-
-	/*
-	 * Check if this is a beacon, and more frames have been
-	 * buffered while we were in powersaving mode.
-	 */
-	rt2x00lib_rxdone_check_ps(rt2x00dev, entry->skb, &rxdesc);
-
-	/*
-	 * Check for incoming BlockAcks to match to the BlockAckReqs
-	 * we've send out.
-	 */
-	rt2x00lib_rxdone_check_ba(rt2x00dev, entry->skb, &rxdesc);
-
-	/*
-	 * Update extra components
-	 */
-	rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc);
-	rt2x00debug_update_crypto(rt2x00dev, &rxdesc);
-	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb);
-
-	/*
-	 * Initialize RX status information, and send frame
-	 * to mac80211.
-	 */
-	rx_status = IEEE80211_SKB_RXCB(entry->skb);
-
-	/* Ensure that all fields of rx_status are initialized
-	 * properly. The skb->cb array was used for driver
-	 * specific informations, so rx_status might contain
-	 * garbage.
-	 */
-	memset(rx_status, 0, sizeof(*rx_status));
-
-	rx_status->mactime = rxdesc.timestamp;
-	rx_status->band = rt2x00dev->curr_band;
-	rx_status->freq = rt2x00dev->curr_freq;
-	rx_status->rate_idx = rate_idx;
-	rx_status->signal = rxdesc.rssi;
-	rx_status->flag = rxdesc.flags;
-	rx_status->antenna = rt2x00dev->link.ant.active.rx;
-
-	ieee80211_rx_ni(rt2x00dev->hw, entry->skb);
-
-renew_skb:
-	/*
-	 * Replace the skb with the freshly allocated one.
-	 */
-	entry->skb = skb;
-
-submit_entry:
-	entry->flags = 0;
-	rt2x00queue_index_inc(entry, Q_INDEX_DONE);
-	if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) &&
-	    test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2x00dev->ops->lib->clear_entry(entry);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_rxdone);
-
-/*
- * Driver initialization handlers.
- */
-const struct rt2x00_rate rt2x00_supported_rates[12] = {
-	{
-		.flags = DEV_RATE_CCK,
-		.bitrate = 10,
-		.ratemask = BIT(0),
-		.plcp = 0x00,
-		.mcs = RATE_MCS(RATE_MODE_CCK, 0),
-	},
-	{
-		.flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
-		.bitrate = 20,
-		.ratemask = BIT(1),
-		.plcp = 0x01,
-		.mcs = RATE_MCS(RATE_MODE_CCK, 1),
-	},
-	{
-		.flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
-		.bitrate = 55,
-		.ratemask = BIT(2),
-		.plcp = 0x02,
-		.mcs = RATE_MCS(RATE_MODE_CCK, 2),
-	},
-	{
-		.flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
-		.bitrate = 110,
-		.ratemask = BIT(3),
-		.plcp = 0x03,
-		.mcs = RATE_MCS(RATE_MODE_CCK, 3),
-	},
-	{
-		.flags = DEV_RATE_OFDM,
-		.bitrate = 60,
-		.ratemask = BIT(4),
-		.plcp = 0x0b,
-		.mcs = RATE_MCS(RATE_MODE_OFDM, 0),
-	},
-	{
-		.flags = DEV_RATE_OFDM,
-		.bitrate = 90,
-		.ratemask = BIT(5),
-		.plcp = 0x0f,
-		.mcs = RATE_MCS(RATE_MODE_OFDM, 1),
-	},
-	{
-		.flags = DEV_RATE_OFDM,
-		.bitrate = 120,
-		.ratemask = BIT(6),
-		.plcp = 0x0a,
-		.mcs = RATE_MCS(RATE_MODE_OFDM, 2),
-	},
-	{
-		.flags = DEV_RATE_OFDM,
-		.bitrate = 180,
-		.ratemask = BIT(7),
-		.plcp = 0x0e,
-		.mcs = RATE_MCS(RATE_MODE_OFDM, 3),
-	},
-	{
-		.flags = DEV_RATE_OFDM,
-		.bitrate = 240,
-		.ratemask = BIT(8),
-		.plcp = 0x09,
-		.mcs = RATE_MCS(RATE_MODE_OFDM, 4),
-	},
-	{
-		.flags = DEV_RATE_OFDM,
-		.bitrate = 360,
-		.ratemask = BIT(9),
-		.plcp = 0x0d,
-		.mcs = RATE_MCS(RATE_MODE_OFDM, 5),
-	},
-	{
-		.flags = DEV_RATE_OFDM,
-		.bitrate = 480,
-		.ratemask = BIT(10),
-		.plcp = 0x08,
-		.mcs = RATE_MCS(RATE_MODE_OFDM, 6),
-	},
-	{
-		.flags = DEV_RATE_OFDM,
-		.bitrate = 540,
-		.ratemask = BIT(11),
-		.plcp = 0x0c,
-		.mcs = RATE_MCS(RATE_MODE_OFDM, 7),
-	},
-};
-
-static void rt2x00lib_channel(struct ieee80211_channel *entry,
-			      const int channel, const int tx_power,
-			      const int value)
-{
-	/* XXX: this assumption about the band is wrong for 802.11j */
-	entry->band = channel <= 14 ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
-	entry->center_freq = ieee80211_channel_to_frequency(channel,
-							    entry->band);
-	entry->hw_value = value;
-	entry->max_power = tx_power;
-	entry->max_antenna_gain = 0xff;
-}
-
-static void rt2x00lib_rate(struct ieee80211_rate *entry,
-			   const u16 index, const struct rt2x00_rate *rate)
-{
-	entry->flags = 0;
-	entry->bitrate = rate->bitrate;
-	entry->hw_value = index;
-	entry->hw_value_short = index;
-
-	if (rate->flags & DEV_RATE_SHORT_PREAMBLE)
-		entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE;
-}
-
-static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev,
-				    struct hw_mode_spec *spec)
-{
-	struct ieee80211_hw *hw = rt2x00dev->hw;
-	struct ieee80211_channel *channels;
-	struct ieee80211_rate *rates;
-	unsigned int num_rates;
-	unsigned int i;
-
-	num_rates = 0;
-	if (spec->supported_rates & SUPPORT_RATE_CCK)
-		num_rates += 4;
-	if (spec->supported_rates & SUPPORT_RATE_OFDM)
-		num_rates += 8;
-
-	channels = kcalloc(spec->num_channels, sizeof(*channels), GFP_KERNEL);
-	if (!channels)
-		return -ENOMEM;
-
-	rates = kcalloc(num_rates, sizeof(*rates), GFP_KERNEL);
-	if (!rates)
-		goto exit_free_channels;
-
-	/*
-	 * Initialize Rate list.
-	 */
-	for (i = 0; i < num_rates; i++)
-		rt2x00lib_rate(&rates[i], i, rt2x00_get_rate(i));
-
-	/*
-	 * Initialize Channel list.
-	 */
-	for (i = 0; i < spec->num_channels; i++) {
-		rt2x00lib_channel(&channels[i],
-				  spec->channels[i].channel,
-				  spec->channels_info[i].max_power, i);
-	}
-
-	/*
-	 * Intitialize 802.11b, 802.11g
-	 * Rates: CCK, OFDM.
-	 * Channels: 2.4 GHz
-	 */
-	if (spec->supported_bands & SUPPORT_BAND_2GHZ) {
-		rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_channels = 14;
-		rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_bitrates = num_rates;
-		rt2x00dev->bands[IEEE80211_BAND_2GHZ].channels = channels;
-		rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates;
-		hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
-		    &rt2x00dev->bands[IEEE80211_BAND_2GHZ];
-		memcpy(&rt2x00dev->bands[IEEE80211_BAND_2GHZ].ht_cap,
-		       &spec->ht, sizeof(spec->ht));
-	}
-
-	/*
-	 * Intitialize 802.11a
-	 * Rates: OFDM.
-	 * Channels: OFDM, UNII, HiperLAN2.
-	 */
-	if (spec->supported_bands & SUPPORT_BAND_5GHZ) {
-		rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_channels =
-		    spec->num_channels - 14;
-		rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_bitrates =
-		    num_rates - 4;
-		rt2x00dev->bands[IEEE80211_BAND_5GHZ].channels = &channels[14];
-		rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4];
-		hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
-		    &rt2x00dev->bands[IEEE80211_BAND_5GHZ];
-		memcpy(&rt2x00dev->bands[IEEE80211_BAND_5GHZ].ht_cap,
-		       &spec->ht, sizeof(spec->ht));
-	}
-
-	return 0;
-
- exit_free_channels:
-	kfree(channels);
-	rt2x00_err(rt2x00dev, "Allocation ieee80211 modes failed\n");
-	return -ENOMEM;
-}
-
-static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev)
-{
-	if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags))
-		ieee80211_unregister_hw(rt2x00dev->hw);
-
-	if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) {
-		kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
-		kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->bitrates);
-		rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
-		rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
-	}
-
-	kfree(rt2x00dev->spec.channels_info);
-}
-
-static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev)
-{
-	struct hw_mode_spec *spec = &rt2x00dev->spec;
-	int status;
-
-	if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags))
-		return 0;
-
-	/*
-	 * Initialize HW modes.
-	 */
-	status = rt2x00lib_probe_hw_modes(rt2x00dev, spec);
-	if (status)
-		return status;
-
-	/*
-	 * Initialize HW fields.
-	 */
-	rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues;
-
-	/*
-	 * Initialize extra TX headroom required.
-	 */
-	rt2x00dev->hw->extra_tx_headroom =
-		max_t(unsigned int, IEEE80211_TX_STATUS_HEADROOM,
-		      rt2x00dev->extra_tx_headroom);
-
-	/*
-	 * Take TX headroom required for alignment into account.
-	 */
-	if (rt2x00_has_cap_flag(rt2x00dev, REQUIRE_L2PAD))
-		rt2x00dev->hw->extra_tx_headroom += RT2X00_L2PAD_SIZE;
-	else if (rt2x00_has_cap_flag(rt2x00dev, REQUIRE_DMA))
-		rt2x00dev->hw->extra_tx_headroom += RT2X00_ALIGN_SIZE;
-
-	/*
-	 * Tell mac80211 about the size of our private STA structure.
-	 */
-	rt2x00dev->hw->sta_data_size = sizeof(struct rt2x00_sta);
-
-	/*
-	 * Allocate tx status FIFO for driver use.
-	 */
-	if (rt2x00_has_cap_flag(rt2x00dev, REQUIRE_TXSTATUS_FIFO)) {
-		/*
-		 * Allocate the txstatus fifo. In the worst case the tx
-		 * status fifo has to hold the tx status of all entries
-		 * in all tx queues. Hence, calculate the kfifo size as
-		 * tx_queues * entry_num and round up to the nearest
-		 * power of 2.
-		 */
-		int kfifo_size =
-			roundup_pow_of_two(rt2x00dev->ops->tx_queues *
-					   rt2x00dev->tx->limit *
-					   sizeof(u32));
-
-		status = kfifo_alloc(&rt2x00dev->txstatus_fifo, kfifo_size,
-				     GFP_KERNEL);
-		if (status)
-			return status;
-	}
-
-	/*
-	 * Initialize tasklets if used by the driver. Tasklets are
-	 * disabled until the interrupts are turned on. The driver
-	 * has to handle that.
-	 */
-#define RT2X00_TASKLET_INIT(taskletname) \
-	if (rt2x00dev->ops->lib->taskletname) { \
-		tasklet_init(&rt2x00dev->taskletname, \
-			     rt2x00dev->ops->lib->taskletname, \
-			     (unsigned long)rt2x00dev); \
-	}
-
-	RT2X00_TASKLET_INIT(txstatus_tasklet);
-	RT2X00_TASKLET_INIT(pretbtt_tasklet);
-	RT2X00_TASKLET_INIT(tbtt_tasklet);
-	RT2X00_TASKLET_INIT(rxdone_tasklet);
-	RT2X00_TASKLET_INIT(autowake_tasklet);
-
-#undef RT2X00_TASKLET_INIT
-
-	/*
-	 * Register HW.
-	 */
-	status = ieee80211_register_hw(rt2x00dev->hw);
-	if (status)
-		return status;
-
-	set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags);
-
-	return 0;
-}
-
-/*
- * Initialization/uninitialization handlers.
- */
-static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev)
-{
-	if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags))
-		return;
-
-	/*
-	 * Stop rfkill polling.
-	 */
-	if (rt2x00_has_cap_flag(rt2x00dev, REQUIRE_DELAYED_RFKILL))
-		rt2x00rfkill_unregister(rt2x00dev);
-
-	/*
-	 * Allow the HW to uninitialize.
-	 */
-	rt2x00dev->ops->lib->uninitialize(rt2x00dev);
-
-	/*
-	 * Free allocated queue entries.
-	 */
-	rt2x00queue_uninitialize(rt2x00dev);
-}
-
-static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev)
-{
-	int status;
-
-	if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags))
-		return 0;
-
-	/*
-	 * Allocate all queue entries.
-	 */
-	status = rt2x00queue_initialize(rt2x00dev);
-	if (status)
-		return status;
-
-	/*
-	 * Initialize the device.
-	 */
-	status = rt2x00dev->ops->lib->initialize(rt2x00dev);
-	if (status) {
-		rt2x00queue_uninitialize(rt2x00dev);
-		return status;
-	}
-
-	set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags);
-
-	/*
-	 * Start rfkill polling.
-	 */
-	if (rt2x00_has_cap_flag(rt2x00dev, REQUIRE_DELAYED_RFKILL))
-		rt2x00rfkill_register(rt2x00dev);
-
-	return 0;
-}
-
-int rt2x00lib_start(struct rt2x00_dev *rt2x00dev)
-{
-	int retval;
-
-	if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
-		return 0;
-
-	/*
-	 * If this is the first interface which is added,
-	 * we should load the firmware now.
-	 */
-	retval = rt2x00lib_load_firmware(rt2x00dev);
-	if (retval)
-		return retval;
-
-	/*
-	 * Initialize the device.
-	 */
-	retval = rt2x00lib_initialize(rt2x00dev);
-	if (retval)
-		return retval;
-
-	rt2x00dev->intf_ap_count = 0;
-	rt2x00dev->intf_sta_count = 0;
-	rt2x00dev->intf_associated = 0;
-
-	/* Enable the radio */
-	retval = rt2x00lib_enable_radio(rt2x00dev);
-	if (retval)
-		return retval;
-
-	set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags);
-
-	return 0;
-}
-
-void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev)
-{
-	if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
-		return;
-
-	/*
-	 * Perhaps we can add something smarter here,
-	 * but for now just disabling the radio should do.
-	 */
-	rt2x00lib_disable_radio(rt2x00dev);
-
-	rt2x00dev->intf_ap_count = 0;
-	rt2x00dev->intf_sta_count = 0;
-	rt2x00dev->intf_associated = 0;
-}
-
-static inline void rt2x00lib_set_if_combinations(struct rt2x00_dev *rt2x00dev)
-{
-	struct ieee80211_iface_limit *if_limit;
-	struct ieee80211_iface_combination *if_combination;
-
-	if (rt2x00dev->ops->max_ap_intf < 2)
-		return;
-
-	/*
-	 * Build up AP interface limits structure.
-	 */
-	if_limit = &rt2x00dev->if_limits_ap;
-	if_limit->max = rt2x00dev->ops->max_ap_intf;
-	if_limit->types = BIT(NL80211_IFTYPE_AP);
-#ifdef CONFIG_MAC80211_MESH
-	if_limit->types |= BIT(NL80211_IFTYPE_MESH_POINT);
-#endif
-
-	/*
-	 * Build up AP interface combinations structure.
-	 */
-	if_combination = &rt2x00dev->if_combinations[IF_COMB_AP];
-	if_combination->limits = if_limit;
-	if_combination->n_limits = 1;
-	if_combination->max_interfaces = if_limit->max;
-	if_combination->num_different_channels = 1;
-
-	/*
-	 * Finally, specify the possible combinations to mac80211.
-	 */
-	rt2x00dev->hw->wiphy->iface_combinations = rt2x00dev->if_combinations;
-	rt2x00dev->hw->wiphy->n_iface_combinations = 1;
-}
-
-static unsigned int rt2x00dev_extra_tx_headroom(struct rt2x00_dev *rt2x00dev)
-{
-	if (WARN_ON(!rt2x00dev->tx))
-		return 0;
-
-	if (rt2x00_is_usb(rt2x00dev))
-		return rt2x00dev->tx[0].winfo_size + rt2x00dev->tx[0].desc_size;
-
-	return rt2x00dev->tx[0].winfo_size;
-}
-
-/*
- * driver allocation handlers.
- */
-int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
-{
-	int retval = -ENOMEM;
-
-	/*
-	 * Set possible interface combinations.
-	 */
-	rt2x00lib_set_if_combinations(rt2x00dev);
-
-	/*
-	 * Allocate the driver data memory, if necessary.
-	 */
-	if (rt2x00dev->ops->drv_data_size > 0) {
-		rt2x00dev->drv_data = kzalloc(rt2x00dev->ops->drv_data_size,
-			                      GFP_KERNEL);
-		if (!rt2x00dev->drv_data) {
-			retval = -ENOMEM;
-			goto exit;
-		}
-	}
-
-	spin_lock_init(&rt2x00dev->irqmask_lock);
-	mutex_init(&rt2x00dev->csr_mutex);
-	INIT_LIST_HEAD(&rt2x00dev->bar_list);
-	spin_lock_init(&rt2x00dev->bar_list_lock);
-
-	set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
-
-	/*
-	 * Make room for rt2x00_intf inside the per-interface
-	 * structure ieee80211_vif.
-	 */
-	rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf);
-
-	/*
-	 * rt2x00 devices can only use the last n bits of the MAC address
-	 * for virtual interfaces.
-	 */
-	rt2x00dev->hw->wiphy->addr_mask[ETH_ALEN - 1] =
-		(rt2x00dev->ops->max_ap_intf - 1);
-
-	/*
-	 * Initialize work.
-	 */
-	rt2x00dev->workqueue =
-	    alloc_ordered_workqueue("%s", 0, wiphy_name(rt2x00dev->hw->wiphy));
-	if (!rt2x00dev->workqueue) {
-		retval = -ENOMEM;
-		goto exit;
-	}
-
-	INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled);
-	INIT_DELAYED_WORK(&rt2x00dev->autowakeup_work, rt2x00lib_autowakeup);
-	INIT_WORK(&rt2x00dev->sleep_work, rt2x00lib_sleep);
-
-	/*
-	 * Let the driver probe the device to detect the capabilities.
-	 */
-	retval = rt2x00dev->ops->lib->probe_hw(rt2x00dev);
-	if (retval) {
-		rt2x00_err(rt2x00dev, "Failed to allocate device\n");
-		goto exit;
-	}
-
-	/*
-	 * Allocate queue array.
-	 */
-	retval = rt2x00queue_allocate(rt2x00dev);
-	if (retval)
-		goto exit;
-
-	/* Cache TX headroom value */
-	rt2x00dev->extra_tx_headroom = rt2x00dev_extra_tx_headroom(rt2x00dev);
-
-	/*
-	 * Determine which operating modes are supported, all modes
-	 * which require beaconing, depend on the availability of
-	 * beacon entries.
-	 */
-	rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
-	if (rt2x00dev->bcn->limit > 0)
-		rt2x00dev->hw->wiphy->interface_modes |=
-		    BIT(NL80211_IFTYPE_ADHOC) |
-		    BIT(NL80211_IFTYPE_AP) |
-#ifdef CONFIG_MAC80211_MESH
-		    BIT(NL80211_IFTYPE_MESH_POINT) |
-#endif
-		    BIT(NL80211_IFTYPE_WDS);
-
-	rt2x00dev->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
-
-	/*
-	 * Initialize ieee80211 structure.
-	 */
-	retval = rt2x00lib_probe_hw(rt2x00dev);
-	if (retval) {
-		rt2x00_err(rt2x00dev, "Failed to initialize hw\n");
-		goto exit;
-	}
-
-	/*
-	 * Register extra components.
-	 */
-	rt2x00link_register(rt2x00dev);
-	rt2x00leds_register(rt2x00dev);
-	rt2x00debug_register(rt2x00dev);
-
-	/*
-	 * Start rfkill polling.
-	 */
-	if (!rt2x00_has_cap_flag(rt2x00dev, REQUIRE_DELAYED_RFKILL))
-		rt2x00rfkill_register(rt2x00dev);
-
-	return 0;
-
-exit:
-	rt2x00lib_remove_dev(rt2x00dev);
-
-	return retval;
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev);
-
-void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev)
-{
-	clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
-
-	/*
-	 * Stop rfkill polling.
-	 */
-	if (!rt2x00_has_cap_flag(rt2x00dev, REQUIRE_DELAYED_RFKILL))
-		rt2x00rfkill_unregister(rt2x00dev);
-
-	/*
-	 * Disable radio.
-	 */
-	rt2x00lib_disable_radio(rt2x00dev);
-
-	/*
-	 * Stop all work.
-	 */
-	cancel_work_sync(&rt2x00dev->intf_work);
-	cancel_delayed_work_sync(&rt2x00dev->autowakeup_work);
-	cancel_work_sync(&rt2x00dev->sleep_work);
-	if (rt2x00_is_usb(rt2x00dev)) {
-		hrtimer_cancel(&rt2x00dev->txstatus_timer);
-		cancel_work_sync(&rt2x00dev->rxdone_work);
-		cancel_work_sync(&rt2x00dev->txdone_work);
-	}
-	if (rt2x00dev->workqueue)
-		destroy_workqueue(rt2x00dev->workqueue);
-
-	/*
-	 * Free the tx status fifo.
-	 */
-	kfifo_free(&rt2x00dev->txstatus_fifo);
-
-	/*
-	 * Kill the tx status tasklet.
-	 */
-	tasklet_kill(&rt2x00dev->txstatus_tasklet);
-	tasklet_kill(&rt2x00dev->pretbtt_tasklet);
-	tasklet_kill(&rt2x00dev->tbtt_tasklet);
-	tasklet_kill(&rt2x00dev->rxdone_tasklet);
-	tasklet_kill(&rt2x00dev->autowake_tasklet);
-
-	/*
-	 * Uninitialize device.
-	 */
-	rt2x00lib_uninitialize(rt2x00dev);
-
-	/*
-	 * Free extra components
-	 */
-	rt2x00debug_deregister(rt2x00dev);
-	rt2x00leds_unregister(rt2x00dev);
-
-	/*
-	 * Free ieee80211_hw memory.
-	 */
-	rt2x00lib_remove_hw(rt2x00dev);
-
-	/*
-	 * Free firmware image.
-	 */
-	rt2x00lib_free_firmware(rt2x00dev);
-
-	/*
-	 * Free queue structures.
-	 */
-	rt2x00queue_free(rt2x00dev);
-
-	/*
-	 * Free the driver data.
-	 */
-	kfree(rt2x00dev->drv_data);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev);
-
-/*
- * Device state handlers
- */
-#ifdef CONFIG_PM
-int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state)
-{
-	rt2x00_dbg(rt2x00dev, "Going to sleep\n");
-
-	/*
-	 * Prevent mac80211 from accessing driver while suspended.
-	 */
-	if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
-		return 0;
-
-	/*
-	 * Cleanup as much as possible.
-	 */
-	rt2x00lib_uninitialize(rt2x00dev);
-
-	/*
-	 * Suspend/disable extra components.
-	 */
-	rt2x00leds_suspend(rt2x00dev);
-	rt2x00debug_deregister(rt2x00dev);
-
-	/*
-	 * Set device mode to sleep for power management,
-	 * on some hardware this call seems to consistently fail.
-	 * From the specifications it is hard to tell why it fails,
-	 * and if this is a "bad thing".
-	 * Overall it is safe to just ignore the failure and
-	 * continue suspending. The only downside is that the
-	 * device will not be in optimal power save mode, but with
-	 * the radio and the other components already disabled the
-	 * device is as good as disabled.
-	 */
-	if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP))
-		rt2x00_warn(rt2x00dev, "Device failed to enter sleep state, continue suspending\n");
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_suspend);
-
-int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev)
-{
-	rt2x00_dbg(rt2x00dev, "Waking up\n");
-
-	/*
-	 * Restore/enable extra components.
-	 */
-	rt2x00debug_register(rt2x00dev);
-	rt2x00leds_resume(rt2x00dev);
-
-	/*
-	 * We are ready again to receive requests from mac80211.
-	 */
-	set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_resume);
-#endif /* CONFIG_PM */
-
-/*
- * rt2x00lib module information.
- */
-MODULE_AUTHOR(DRV_PROJECT);
-MODULE_VERSION(DRV_VERSION);
-MODULE_DESCRIPTION("rt2x00 library");
-MODULE_LICENSE("GPL");