Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 1476 insertions, 0 deletions

diff --git a/kernel/drivers/net/wireless/rt2x00/rt2x00.h b/kernel/drivers/net/wireless/rt2x00/rt2x00.h
new file mode 100644
index 000000000..9bb398bed
--- /dev/null
+++ b/kernel/drivers/net/wireless/rt2x00/rt2x00.h
@@ -0,0 +1,1476 @@
+/*
+	Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
+	Copyright (C) 2004 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
+	Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@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: rt2x00
+	Abstract: rt2x00 global information.
+ */
+
+#ifndef RT2X00_H
+#define RT2X00_H
+
+#include <linux/bitops.h>
+#include <linux/interrupt.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/firmware.h>
+#include <linux/leds.h>
+#include <linux/mutex.h>
+#include <linux/etherdevice.h>
+#include <linux/input-polldev.h>
+#include <linux/kfifo.h>
+#include <linux/hrtimer.h>
+#include <linux/average.h>
+
+#include <net/mac80211.h>
+
+#include "rt2x00debug.h"
+#include "rt2x00dump.h"
+#include "rt2x00leds.h"
+#include "rt2x00reg.h"
+#include "rt2x00queue.h"
+
+/*
+ * Module information.
+ */
+#define DRV_VERSION	"2.3.0"
+#define DRV_PROJECT	"http://rt2x00.serialmonkey.com"
+
+/* Debug definitions.
+ * Debug output has to be enabled during compile time.
+ */
+#ifdef CONFIG_RT2X00_DEBUG
+#define DEBUG
+#endif /* CONFIG_RT2X00_DEBUG */
+
+/* Utility printing macros
+ * rt2x00_probe_err is for messages when rt2x00_dev is uninitialized
+ */
+#define rt2x00_probe_err(fmt, ...)					\
+	printk(KERN_ERR KBUILD_MODNAME ": %s: Error - " fmt,		\
+	       __func__, ##__VA_ARGS__)
+#define rt2x00_err(dev, fmt, ...)					\
+	wiphy_err((dev)->hw->wiphy, "%s: Error - " fmt,			\
+		  __func__, ##__VA_ARGS__)
+#define rt2x00_warn(dev, fmt, ...)					\
+	wiphy_warn((dev)->hw->wiphy, "%s: Warning - " fmt,		\
+		   __func__, ##__VA_ARGS__)
+#define rt2x00_info(dev, fmt, ...)					\
+	wiphy_info((dev)->hw->wiphy, "%s: Info - " fmt,			\
+		   __func__, ##__VA_ARGS__)
+
+/* Various debug levels */
+#define rt2x00_dbg(dev, fmt, ...)					\
+	wiphy_dbg((dev)->hw->wiphy, "%s: Debug - " fmt,			\
+		  __func__, ##__VA_ARGS__)
+#define rt2x00_eeprom_dbg(dev, fmt, ...)				\
+	wiphy_dbg((dev)->hw->wiphy, "%s: EEPROM recovery - " fmt,	\
+		  __func__, ##__VA_ARGS__)
+
+/*
+ * Duration calculations
+ * The rate variable passed is: 100kbs.
+ * To convert from bytes to bits we multiply size with 8,
+ * then the size is multiplied with 10 to make the
+ * real rate -> rate argument correction.
+ */
+#define GET_DURATION(__size, __rate)	(((__size) * 8 * 10) / (__rate))
+#define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))
+
+/*
+ * Determine the number of L2 padding bytes required between the header and
+ * the payload.
+ */
+#define L2PAD_SIZE(__hdrlen)	(-(__hdrlen) & 3)
+
+/*
+ * Determine the alignment requirement,
+ * to make sure the 802.11 payload is padded to a 4-byte boundrary
+ * we must determine the address of the payload and calculate the
+ * amount of bytes needed to move the data.
+ */
+#define ALIGN_SIZE(__skb, __header) \
+	(  ((unsigned long)((__skb)->data + (__header))) & 3 )
+
+/*
+ * Constants for extra TX headroom for alignment purposes.
+ */
+#define RT2X00_ALIGN_SIZE	4 /* Only whole frame needs alignment */
+#define RT2X00_L2PAD_SIZE	8 /* Both header & payload need alignment */
+
+/*
+ * Standard timing and size defines.
+ * These values should follow the ieee80211 specifications.
+ */
+#define ACK_SIZE		14
+#define IEEE80211_HEADER	24
+#define PLCP			48
+#define BEACON			100
+#define PREAMBLE		144
+#define SHORT_PREAMBLE		72
+#define SLOT_TIME		20
+#define SHORT_SLOT_TIME		9
+#define SIFS			10
+#define PIFS			( SIFS + SLOT_TIME )
+#define SHORT_PIFS		( SIFS + SHORT_SLOT_TIME )
+#define DIFS			( PIFS + SLOT_TIME )
+#define SHORT_DIFS		( SHORT_PIFS + SHORT_SLOT_TIME )
+#define EIFS			( SIFS + DIFS + \
+				  GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
+#define SHORT_EIFS		( SIFS + SHORT_DIFS + \
+				  GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
+
+enum rt2x00_chip_intf {
+	RT2X00_CHIP_INTF_PCI,
+	RT2X00_CHIP_INTF_PCIE,
+	RT2X00_CHIP_INTF_USB,
+	RT2X00_CHIP_INTF_SOC,
+};
+
+/*
+ * Chipset identification
+ * The chipset on the device is composed of a RT and RF chip.
+ * The chipset combination is important for determining device capabilities.
+ */
+struct rt2x00_chip {
+	u16 rt;
+#define RT2460		0x2460
+#define RT2560		0x2560
+#define RT2570		0x2570
+#define RT2661		0x2661
+#define RT2573		0x2573
+#define RT2860		0x2860	/* 2.4GHz */
+#define RT2872		0x2872	/* WSOC */
+#define RT2883		0x2883	/* WSOC */
+#define RT3070		0x3070
+#define RT3071		0x3071
+#define RT3090		0x3090	/* 2.4GHz PCIe */
+#define RT3290		0x3290
+#define RT3352		0x3352  /* WSOC */
+#define RT3390		0x3390
+#define RT3572		0x3572
+#define RT3593		0x3593
+#define RT3883		0x3883	/* WSOC */
+#define RT5390		0x5390  /* 2.4GHz */
+#define RT5392		0x5392  /* 2.4GHz */
+#define RT5592		0x5592
+
+	u16 rf;
+	u16 rev;
+
+	enum rt2x00_chip_intf intf;
+};
+
+/*
+ * RF register values that belong to a particular channel.
+ */
+struct rf_channel {
+	int channel;
+	u32 rf1;
+	u32 rf2;
+	u32 rf3;
+	u32 rf4;
+};
+
+/*
+ * Channel information structure
+ */
+struct channel_info {
+	unsigned int flags;
+#define GEOGRAPHY_ALLOWED	0x00000001
+
+	short max_power;
+	short default_power1;
+	short default_power2;
+	short default_power3;
+};
+
+/*
+ * Antenna setup values.
+ */
+struct antenna_setup {
+	enum antenna rx;
+	enum antenna tx;
+	u8 rx_chain_num;
+	u8 tx_chain_num;
+};
+
+/*
+ * Quality statistics about the currently active link.
+ */
+struct link_qual {
+	/*
+	 * Statistics required for Link tuning by driver
+	 * The rssi value is provided by rt2x00lib during the
+	 * link_tuner() callback function.
+	 * The false_cca field is filled during the link_stats()
+	 * callback function and could be used during the
+	 * link_tuner() callback function.
+	 */
+	int rssi;
+	int false_cca;
+
+	/*
+	 * VGC levels
+	 * Hardware driver will tune the VGC level during each call
+	 * to the link_tuner() callback function. This vgc_level is
+	 * is determined based on the link quality statistics like
+	 * average RSSI and the false CCA count.
+	 *
+	 * In some cases the drivers need to differentiate between
+	 * the currently "desired" VGC level and the level configured
+	 * in the hardware. The latter is important to reduce the
+	 * number of BBP register reads to reduce register access
+	 * overhead. For this reason we store both values here.
+	 */
+	u8 vgc_level;
+	u8 vgc_level_reg;
+
+	/*
+	 * Statistics required for Signal quality calculation.
+	 * These fields might be changed during the link_stats()
+	 * callback function.
+	 */
+	int rx_success;
+	int rx_failed;
+	int tx_success;
+	int tx_failed;
+};
+
+/*
+ * Antenna settings about the currently active link.
+ */
+struct link_ant {
+	/*
+	 * Antenna flags
+	 */
+	unsigned int flags;
+#define ANTENNA_RX_DIVERSITY	0x00000001
+#define ANTENNA_TX_DIVERSITY	0x00000002
+#define ANTENNA_MODE_SAMPLE	0x00000004
+
+	/*
+	 * Currently active TX/RX antenna setup.
+	 * When software diversity is used, this will indicate
+	 * which antenna is actually used at this time.
+	 */
+	struct antenna_setup active;
+
+	/*
+	 * RSSI history information for the antenna.
+	 * Used to determine when to switch antenna
+	 * when using software diversity.
+	 */
+	int rssi_history;
+
+	/*
+	 * Current RSSI average of the currently active antenna.
+	 * Similar to the avg_rssi in the link_qual structure
+	 * this value is updated by using the walking average.
+	 */
+	struct ewma rssi_ant;
+};
+
+/*
+ * To optimize the quality of the link we need to store
+ * the quality of received frames and periodically
+ * optimize the link.
+ */
+struct link {
+	/*
+	 * Link tuner counter
+	 * The number of times the link has been tuned
+	 * since the radio has been switched on.
+	 */
+	u32 count;
+
+	/*
+	 * Quality measurement values.
+	 */
+	struct link_qual qual;
+
+	/*
+	 * TX/RX antenna setup.
+	 */
+	struct link_ant ant;
+
+	/*
+	 * Currently active average RSSI value
+	 */
+	struct ewma avg_rssi;
+
+	/*
+	 * Work structure for scheduling periodic link tuning.
+	 */
+	struct delayed_work work;
+
+	/*
+	 * Work structure for scheduling periodic watchdog monitoring.
+	 * This work must be scheduled on the kernel workqueue, while
+	 * all other work structures must be queued on the mac80211
+	 * workqueue. This guarantees that the watchdog can schedule
+	 * other work structures and wait for their completion in order
+	 * to bring the device/driver back into the desired state.
+	 */
+	struct delayed_work watchdog_work;
+
+	/*
+	 * Work structure for scheduling periodic AGC adjustments.
+	 */
+	struct delayed_work agc_work;
+
+	/*
+	 * Work structure for scheduling periodic VCO calibration.
+	 */
+	struct delayed_work vco_work;
+};
+
+enum rt2x00_delayed_flags {
+	DELAYED_UPDATE_BEACON,
+};
+
+/*
+ * Interface structure
+ * Per interface configuration details, this structure
+ * is allocated as the private data for ieee80211_vif.
+ */
+struct rt2x00_intf {
+	/*
+	 * beacon->skb must be protected with the mutex.
+	 */
+	struct mutex beacon_skb_mutex;
+
+	/*
+	 * Entry in the beacon queue which belongs to
+	 * this interface. Each interface has its own
+	 * dedicated beacon entry.
+	 */
+	struct queue_entry *beacon;
+	bool enable_beacon;
+
+	/*
+	 * Actions that needed rescheduling.
+	 */
+	unsigned long delayed_flags;
+
+	/*
+	 * Software sequence counter, this is only required
+	 * for hardware which doesn't support hardware
+	 * sequence counting.
+	 */
+	atomic_t seqno;
+};
+
+static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
+{
+	return (struct rt2x00_intf *)vif->drv_priv;
+}
+
+/**
+ * struct hw_mode_spec: Hardware specifications structure
+ *
+ * Details about the supported modes, rates and channels
+ * of a particular chipset. This is used by rt2x00lib
+ * to build the ieee80211_hw_mode array for mac80211.
+ *
+ * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz).
+ * @supported_rates: Rate types which are supported (CCK, OFDM).
+ * @num_channels: Number of supported channels. This is used as array size
+ *	for @tx_power_a, @tx_power_bg and @channels.
+ * @channels: Device/chipset specific channel values (See &struct rf_channel).
+ * @channels_info: Additional information for channels (See &struct channel_info).
+ * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
+ */
+struct hw_mode_spec {
+	unsigned int supported_bands;
+#define SUPPORT_BAND_2GHZ	0x00000001
+#define SUPPORT_BAND_5GHZ	0x00000002
+
+	unsigned int supported_rates;
+#define SUPPORT_RATE_CCK	0x00000001
+#define SUPPORT_RATE_OFDM	0x00000002
+
+	unsigned int num_channels;
+	const struct rf_channel *channels;
+	const struct channel_info *channels_info;
+
+	struct ieee80211_sta_ht_cap ht;
+};
+
+/*
+ * Configuration structure wrapper around the
+ * mac80211 configuration structure.
+ * When mac80211 configures the driver, rt2x00lib
+ * can precalculate values which are equal for all
+ * rt2x00 drivers. Those values can be stored in here.
+ */
+struct rt2x00lib_conf {
+	struct ieee80211_conf *conf;
+
+	struct rf_channel rf;
+	struct channel_info channel;
+};
+
+/*
+ * Configuration structure for erp settings.
+ */
+struct rt2x00lib_erp {
+	int short_preamble;
+	int cts_protection;
+
+	u32 basic_rates;
+
+	int slot_time;
+
+	short sifs;
+	short pifs;
+	short difs;
+	short eifs;
+
+	u16 beacon_int;
+	u16 ht_opmode;
+};
+
+/*
+ * Configuration structure for hardware encryption.
+ */
+struct rt2x00lib_crypto {
+	enum cipher cipher;
+
+	enum set_key_cmd cmd;
+	const u8 *address;
+
+	u32 bssidx;
+
+	u8 key[16];
+	u8 tx_mic[8];
+	u8 rx_mic[8];
+
+	int wcid;
+};
+
+/*
+ * Configuration structure wrapper around the
+ * rt2x00 interface configuration handler.
+ */
+struct rt2x00intf_conf {
+	/*
+	 * Interface type
+	 */
+	enum nl80211_iftype type;
+
+	/*
+	 * TSF sync value, this is dependent on the operation type.
+	 */
+	enum tsf_sync sync;
+
+	/*
+	 * The MAC and BSSID addresses are simple array of bytes,
+	 * these arrays are little endian, so when sending the addresses
+	 * to the drivers, copy the it into a endian-signed variable.
+	 *
+	 * Note that all devices (except rt2500usb) have 32 bits
+	 * register word sizes. This means that whatever variable we
+	 * pass _must_ be a multiple of 32 bits. Otherwise the device
+	 * might not accept what we are sending to it.
+	 * This will also make it easier for the driver to write
+	 * the data to the device.
+	 */
+	__le32 mac[2];
+	__le32 bssid[2];
+};
+
+/*
+ * Private structure for storing STA details
+ * wcid: Wireless Client ID
+ */
+struct rt2x00_sta {
+	int wcid;
+};
+
+static inline struct rt2x00_sta* sta_to_rt2x00_sta(struct ieee80211_sta *sta)
+{
+	return (struct rt2x00_sta *)sta->drv_priv;
+}
+
+/*
+ * rt2x00lib callback functions.
+ */
+struct rt2x00lib_ops {
+	/*
+	 * Interrupt handlers.
+	 */
+	irq_handler_t irq_handler;
+
+	/*
+	 * TX status tasklet handler.
+	 */
+	void (*txstatus_tasklet) (unsigned long data);
+	void (*pretbtt_tasklet) (unsigned long data);
+	void (*tbtt_tasklet) (unsigned long data);
+	void (*rxdone_tasklet) (unsigned long data);
+	void (*autowake_tasklet) (unsigned long data);
+
+	/*
+	 * Device init handlers.
+	 */
+	int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
+	char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
+	int (*check_firmware) (struct rt2x00_dev *rt2x00dev,
+			       const u8 *data, const size_t len);
+	int (*load_firmware) (struct rt2x00_dev *rt2x00dev,
+			      const u8 *data, const size_t len);
+
+	/*
+	 * Device initialization/deinitialization handlers.
+	 */
+	int (*initialize) (struct rt2x00_dev *rt2x00dev);
+	void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
+
+	/*
+	 * queue initialization handlers
+	 */
+	bool (*get_entry_state) (struct queue_entry *entry);
+	void (*clear_entry) (struct queue_entry *entry);
+
+	/*
+	 * Radio control handlers.
+	 */
+	int (*set_device_state) (struct rt2x00_dev *rt2x00dev,
+				 enum dev_state state);
+	int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev);
+	void (*link_stats) (struct rt2x00_dev *rt2x00dev,
+			    struct link_qual *qual);
+	void (*reset_tuner) (struct rt2x00_dev *rt2x00dev,
+			     struct link_qual *qual);
+	void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
+			    struct link_qual *qual, const u32 count);
+	void (*gain_calibration) (struct rt2x00_dev *rt2x00dev);
+	void (*vco_calibration) (struct rt2x00_dev *rt2x00dev);
+
+	/*
+	 * Data queue handlers.
+	 */
+	void (*watchdog) (struct rt2x00_dev *rt2x00dev);
+	void (*start_queue) (struct data_queue *queue);
+	void (*kick_queue) (struct data_queue *queue);
+	void (*stop_queue) (struct data_queue *queue);
+	void (*flush_queue) (struct data_queue *queue, bool drop);
+	void (*tx_dma_done) (struct queue_entry *entry);
+
+	/*
+	 * TX control handlers
+	 */
+	void (*write_tx_desc) (struct queue_entry *entry,
+			       struct txentry_desc *txdesc);
+	void (*write_tx_data) (struct queue_entry *entry,
+			       struct txentry_desc *txdesc);
+	void (*write_beacon) (struct queue_entry *entry,
+			      struct txentry_desc *txdesc);
+	void (*clear_beacon) (struct queue_entry *entry);
+	int (*get_tx_data_len) (struct queue_entry *entry);
+
+	/*
+	 * RX control handlers
+	 */
+	void (*fill_rxdone) (struct queue_entry *entry,
+			     struct rxdone_entry_desc *rxdesc);
+
+	/*
+	 * Configuration handlers.
+	 */
+	int (*config_shared_key) (struct rt2x00_dev *rt2x00dev,
+				  struct rt2x00lib_crypto *crypto,
+				  struct ieee80211_key_conf *key);
+	int (*config_pairwise_key) (struct rt2x00_dev *rt2x00dev,
+				    struct rt2x00lib_crypto *crypto,
+				    struct ieee80211_key_conf *key);
+	void (*config_filter) (struct rt2x00_dev *rt2x00dev,
+			       const unsigned int filter_flags);
+	void (*config_intf) (struct rt2x00_dev *rt2x00dev,
+			     struct rt2x00_intf *intf,
+			     struct rt2x00intf_conf *conf,
+			     const unsigned int flags);
+#define CONFIG_UPDATE_TYPE		( 1 << 1 )
+#define CONFIG_UPDATE_MAC		( 1 << 2 )
+#define CONFIG_UPDATE_BSSID		( 1 << 3 )
+
+	void (*config_erp) (struct rt2x00_dev *rt2x00dev,
+			    struct rt2x00lib_erp *erp,
+			    u32 changed);
+	void (*config_ant) (struct rt2x00_dev *rt2x00dev,
+			    struct antenna_setup *ant);
+	void (*config) (struct rt2x00_dev *rt2x00dev,
+			struct rt2x00lib_conf *libconf,
+			const unsigned int changed_flags);
+	int (*sta_add) (struct rt2x00_dev *rt2x00dev,
+			struct ieee80211_vif *vif,
+			struct ieee80211_sta *sta);
+	int (*sta_remove) (struct rt2x00_dev *rt2x00dev,
+			   int wcid);
+};
+
+/*
+ * rt2x00 driver callback operation structure.
+ */
+struct rt2x00_ops {
+	const char *name;
+	const unsigned int drv_data_size;
+	const unsigned int max_ap_intf;
+	const unsigned int eeprom_size;
+	const unsigned int rf_size;
+	const unsigned int tx_queues;
+	void (*queue_init)(struct data_queue *queue);
+	const struct rt2x00lib_ops *lib;
+	const void *drv;
+	const struct ieee80211_ops *hw;
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	const struct rt2x00debug *debugfs;
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+/*
+ * rt2x00 state flags
+ */
+enum rt2x00_state_flags {
+	/*
+	 * Device flags
+	 */
+	DEVICE_STATE_PRESENT,
+	DEVICE_STATE_REGISTERED_HW,
+	DEVICE_STATE_INITIALIZED,
+	DEVICE_STATE_STARTED,
+	DEVICE_STATE_ENABLED_RADIO,
+	DEVICE_STATE_SCANNING,
+
+	/*
+	 * Driver configuration
+	 */
+	CONFIG_CHANNEL_HT40,
+	CONFIG_POWERSAVING,
+	CONFIG_HT_DISABLED,
+	CONFIG_QOS_DISABLED,
+
+	/*
+	 * Mark we currently are sequentially reading TX_STA_FIFO register
+	 * FIXME: this is for only rt2800usb, should go to private data
+	 */
+	TX_STATUS_READING,
+};
+
+/*
+ * rt2x00 capability flags
+ */
+enum rt2x00_capability_flags {
+	/*
+	 * Requirements
+	 */
+	REQUIRE_FIRMWARE,
+	REQUIRE_BEACON_GUARD,
+	REQUIRE_ATIM_QUEUE,
+	REQUIRE_DMA,
+	REQUIRE_COPY_IV,
+	REQUIRE_L2PAD,
+	REQUIRE_TXSTATUS_FIFO,
+	REQUIRE_TASKLET_CONTEXT,
+	REQUIRE_SW_SEQNO,
+	REQUIRE_HT_TX_DESC,
+	REQUIRE_PS_AUTOWAKE,
+	REQUIRE_DELAYED_RFKILL,
+
+	/*
+	 * Capabilities
+	 */
+	CAPABILITY_HW_BUTTON,
+	CAPABILITY_HW_CRYPTO,
+	CAPABILITY_POWER_LIMIT,
+	CAPABILITY_CONTROL_FILTERS,
+	CAPABILITY_CONTROL_FILTER_PSPOLL,
+	CAPABILITY_PRE_TBTT_INTERRUPT,
+	CAPABILITY_LINK_TUNING,
+	CAPABILITY_FRAME_TYPE,
+	CAPABILITY_RF_SEQUENCE,
+	CAPABILITY_EXTERNAL_LNA_A,
+	CAPABILITY_EXTERNAL_LNA_BG,
+	CAPABILITY_DOUBLE_ANTENNA,
+	CAPABILITY_BT_COEXIST,
+	CAPABILITY_VCO_RECALIBRATION,
+};
+
+/*
+ * Interface combinations
+ */
+enum {
+	IF_COMB_AP = 0,
+	NUM_IF_COMB,
+};
+
+/*
+ * rt2x00 device structure.
+ */
+struct rt2x00_dev {
+	/*
+	 * Device structure.
+	 * The structure stored in here depends on the
+	 * system bus (PCI or USB).
+	 * When accessing this variable, the rt2x00dev_{pci,usb}
+	 * macros should be used for correct typecasting.
+	 */
+	struct device *dev;
+
+	/*
+	 * Callback functions.
+	 */
+	const struct rt2x00_ops *ops;
+
+	/*
+	 * Driver data.
+	 */
+	void *drv_data;
+
+	/*
+	 * IEEE80211 control structure.
+	 */
+	struct ieee80211_hw *hw;
+	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
+	enum ieee80211_band curr_band;
+	int curr_freq;
+
+	/*
+	 * If enabled, the debugfs interface structures
+	 * required for deregistration of debugfs.
+	 */
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	struct rt2x00debug_intf *debugfs_intf;
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+	/*
+	 * LED structure for changing the LED status
+	 * by mac8011 or the kernel.
+	 */
+#ifdef CONFIG_RT2X00_LIB_LEDS
+	struct rt2x00_led led_radio;
+	struct rt2x00_led led_assoc;
+	struct rt2x00_led led_qual;
+	u16 led_mcu_reg;
+#endif /* CONFIG_RT2X00_LIB_LEDS */
+
+	/*
+	 * Device state flags.
+	 * In these flags the current status is stored.
+	 * Access to these flags should occur atomically.
+	 */
+	unsigned long flags;
+
+	/*
+	 * Device capabiltiy flags.
+	 * In these flags the device/driver capabilities are stored.
+	 * Access to these flags should occur non-atomically.
+	 */
+	unsigned long cap_flags;
+
+	/*
+	 * Device information, Bus IRQ and name (PCI, SoC)
+	 */
+	int irq;
+	const char *name;
+
+	/*
+	 * Chipset identification.
+	 */
+	struct rt2x00_chip chip;
+
+	/*
+	 * hw capability specifications.
+	 */
+	struct hw_mode_spec spec;
+
+	/*
+	 * This is the default TX/RX antenna setup as indicated
+	 * by the device's EEPROM.
+	 */
+	struct antenna_setup default_ant;
+
+	/*
+	 * Register pointers
+	 * csr.base: CSR base register address. (PCI)
+	 * csr.cache: CSR cache for usb_control_msg. (USB)
+	 */
+	union csr {
+		void __iomem *base;
+		void *cache;
+	} csr;
+
+	/*
+	 * Mutex to protect register accesses.
+	 * For PCI and USB devices it protects against concurrent indirect
+	 * register access (BBP, RF, MCU) since accessing those
+	 * registers require multiple calls to the CSR registers.
+	 * For USB devices it also protects the csr_cache since that
+	 * field is used for normal CSR access and it cannot support
+	 * multiple callers simultaneously.
+	 */
+	struct mutex csr_mutex;
+
+	/*
+	 * Current packet filter configuration for the device.
+	 * This contains all currently active FIF_* flags send
+	 * to us by mac80211 during configure_filter().
+	 */
+	unsigned int packet_filter;
+
+	/*
+	 * Interface details:
+	 *  - Open ap interface count.
+	 *  - Open sta interface count.
+	 *  - Association count.
+	 *  - Beaconing enabled count.
+	 */
+	unsigned int intf_ap_count;
+	unsigned int intf_sta_count;
+	unsigned int intf_associated;
+	unsigned int intf_beaconing;
+
+	/*
+	 * Interface combinations
+	 */
+	struct ieee80211_iface_limit if_limits_ap;
+	struct ieee80211_iface_combination if_combinations[NUM_IF_COMB];
+
+	/*
+	 * Link quality
+	 */
+	struct link link;
+
+	/*
+	 * EEPROM data.
+	 */
+	__le16 *eeprom;
+
+	/*
+	 * Active RF register values.
+	 * These are stored here so we don't need
+	 * to read the rf registers and can directly
+	 * use this value instead.
+	 * This field should be accessed by using
+	 * rt2x00_rf_read() and rt2x00_rf_write().
+	 */
+	u32 *rf;
+
+	/*
+	 * LNA gain
+	 */
+	short lna_gain;
+
+	/*
+	 * Current TX power value.
+	 */
+	u16 tx_power;
+
+	/*
+	 * Current retry values.
+	 */
+	u8 short_retry;
+	u8 long_retry;
+
+	/*
+	 * Rssi <-> Dbm offset
+	 */
+	u8 rssi_offset;
+
+	/*
+	 * Frequency offset.
+	 */
+	u8 freq_offset;
+
+	/*
+	 * Association id.
+	 */
+	u16 aid;
+
+	/*
+	 * Beacon interval.
+	 */
+	u16 beacon_int;
+
+	/**
+	 * Timestamp of last received beacon
+	 */
+	unsigned long last_beacon;
+
+	/*
+	 * Low level statistics which will have
+	 * to be kept up to date while device is running.
+	 */
+	struct ieee80211_low_level_stats low_level_stats;
+
+	/**
+	 * Work queue for all work which should not be placed
+	 * on the mac80211 workqueue (because of dependencies
+	 * between various work structures).
+	 */
+	struct workqueue_struct *workqueue;
+
+	/*
+	 * Scheduled work.
+	 * NOTE: intf_work will use ieee80211_iterate_active_interfaces()
+	 * which means it cannot be placed on the hw->workqueue
+	 * due to RTNL locking requirements.
+	 */
+	struct work_struct intf_work;
+
+	/**
+	 * Scheduled work for TX/RX done handling (USB devices)
+	 */
+	struct work_struct rxdone_work;
+	struct work_struct txdone_work;
+
+	/*
+	 * Powersaving work
+	 */
+	struct delayed_work autowakeup_work;
+	struct work_struct sleep_work;
+
+	/*
+	 * Data queue arrays for RX, TX, Beacon and ATIM.
+	 */
+	unsigned int data_queues;
+	struct data_queue *rx;
+	struct data_queue *tx;
+	struct data_queue *bcn;
+	struct data_queue *atim;
+
+	/*
+	 * Firmware image.
+	 */
+	const struct firmware *fw;
+
+	/*
+	 * FIFO for storing tx status reports between isr and tasklet.
+	 */
+	DECLARE_KFIFO_PTR(txstatus_fifo, u32);
+
+	/*
+	 * Timer to ensure tx status reports are read (rt2800usb).
+	 */
+	struct hrtimer txstatus_timer;
+
+	/*
+	 * Tasklet for processing tx status reports (rt2800pci).
+	 */
+	struct tasklet_struct txstatus_tasklet;
+	struct tasklet_struct pretbtt_tasklet;
+	struct tasklet_struct tbtt_tasklet;
+	struct tasklet_struct rxdone_tasklet;
+	struct tasklet_struct autowake_tasklet;
+
+	/*
+	 * Used for VCO periodic calibration.
+	 */
+	int rf_channel;
+
+	/*
+	 * Protect the interrupt mask register.
+	 */
+	spinlock_t irqmask_lock;
+
+	/*
+	 * List of BlockAckReq TX entries that need driver BlockAck processing.
+	 */
+	struct list_head bar_list;
+	spinlock_t bar_list_lock;
+
+	/* Extra TX headroom required for alignment purposes. */
+	unsigned int extra_tx_headroom;
+};
+
+struct rt2x00_bar_list_entry {
+	struct list_head list;
+	struct rcu_head head;
+
+	struct queue_entry *entry;
+	int block_acked;
+
+	/* Relevant parts of the IEEE80211 BAR header */
+	__u8 ra[6];
+	__u8 ta[6];
+	__le16 control;
+	__le16 start_seq_num;
+};
+
+/*
+ * Register defines.
+ * Some registers require multiple attempts before success,
+ * in those cases REGISTER_BUSY_COUNT attempts should be
+ * taken with a REGISTER_BUSY_DELAY interval. Due to USB
+ * bus delays, we do not have to loop so many times to wait
+ * for valid register value on that bus.
+ */
+#define REGISTER_BUSY_COUNT	100
+#define REGISTER_USB_BUSY_COUNT 20
+#define REGISTER_BUSY_DELAY	100
+
+/*
+ * Generic RF access.
+ * The RF is being accessed by word index.
+ */
+static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
+				  const unsigned int word, u32 *data)
+{
+	BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
+	*data = rt2x00dev->rf[word - 1];
+}
+
+static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
+				   const unsigned int word, u32 data)
+{
+	BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
+	rt2x00dev->rf[word - 1] = data;
+}
+
+/*
+ * Generic EEPROM access. The EEPROM is being accessed by word or byte index.
+ */
+static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev,
+				       const unsigned int word)
+{
+	return (void *)&rt2x00dev->eeprom[word];
+}
+
+static inline void rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev,
+				      const unsigned int word, u16 *data)
+{
+	*data = le16_to_cpu(rt2x00dev->eeprom[word]);
+}
+
+static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev,
+				       const unsigned int word, u16 data)
+{
+	rt2x00dev->eeprom[word] = cpu_to_le16(data);
+}
+
+static inline u8 rt2x00_eeprom_byte(struct rt2x00_dev *rt2x00dev,
+				    const unsigned int byte)
+{
+	return *(((u8 *)rt2x00dev->eeprom) + byte);
+}
+
+/*
+ * Chipset handlers
+ */
+static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
+				   const u16 rt, const u16 rf, const u16 rev)
+{
+	rt2x00dev->chip.rt = rt;
+	rt2x00dev->chip.rf = rf;
+	rt2x00dev->chip.rev = rev;
+
+	rt2x00_info(rt2x00dev, "Chipset detected - rt: %04x, rf: %04x, rev: %04x\n",
+		    rt2x00dev->chip.rt, rt2x00dev->chip.rf,
+		    rt2x00dev->chip.rev);
+}
+
+static inline void rt2x00_set_rt(struct rt2x00_dev *rt2x00dev,
+				 const u16 rt, const u16 rev)
+{
+	rt2x00dev->chip.rt = rt;
+	rt2x00dev->chip.rev = rev;
+
+	rt2x00_info(rt2x00dev, "RT chipset %04x, rev %04x detected\n",
+		    rt2x00dev->chip.rt, rt2x00dev->chip.rev);
+}
+
+static inline void rt2x00_set_rf(struct rt2x00_dev *rt2x00dev, const u16 rf)
+{
+	rt2x00dev->chip.rf = rf;
+
+	rt2x00_info(rt2x00dev, "RF chipset %04x detected\n",
+		    rt2x00dev->chip.rf);
+}
+
+static inline bool rt2x00_rt(struct rt2x00_dev *rt2x00dev, const u16 rt)
+{
+	return (rt2x00dev->chip.rt == rt);
+}
+
+static inline bool rt2x00_rf(struct rt2x00_dev *rt2x00dev, const u16 rf)
+{
+	return (rt2x00dev->chip.rf == rf);
+}
+
+static inline u16 rt2x00_rev(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00dev->chip.rev;
+}
+
+static inline bool rt2x00_rt_rev(struct rt2x00_dev *rt2x00dev,
+				 const u16 rt, const u16 rev)
+{
+	return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) == rev);
+}
+
+static inline bool rt2x00_rt_rev_lt(struct rt2x00_dev *rt2x00dev,
+				    const u16 rt, const u16 rev)
+{
+	return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) < rev);
+}
+
+static inline bool rt2x00_rt_rev_gte(struct rt2x00_dev *rt2x00dev,
+				     const u16 rt, const u16 rev)
+{
+	return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) >= rev);
+}
+
+static inline void rt2x00_set_chip_intf(struct rt2x00_dev *rt2x00dev,
+					enum rt2x00_chip_intf intf)
+{
+	rt2x00dev->chip.intf = intf;
+}
+
+static inline bool rt2x00_intf(struct rt2x00_dev *rt2x00dev,
+			       enum rt2x00_chip_intf intf)
+{
+	return (rt2x00dev->chip.intf == intf);
+}
+
+static inline bool rt2x00_is_pci(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCI) ||
+	       rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
+}
+
+static inline bool rt2x00_is_pcie(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
+}
+
+static inline bool rt2x00_is_usb(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_USB);
+}
+
+static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
+}
+
+/* Helpers for capability flags */
+
+static inline bool
+rt2x00_has_cap_flag(struct rt2x00_dev *rt2x00dev,
+		    enum rt2x00_capability_flags cap_flag)
+{
+	return test_bit(cap_flag, &rt2x00dev->cap_flags);
+}
+
+static inline bool
+rt2x00_has_cap_hw_crypto(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_HW_CRYPTO);
+}
+
+static inline bool
+rt2x00_has_cap_power_limit(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_POWER_LIMIT);
+}
+
+static inline bool
+rt2x00_has_cap_control_filters(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_CONTROL_FILTERS);
+}
+
+static inline bool
+rt2x00_has_cap_control_filter_pspoll(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_CONTROL_FILTER_PSPOLL);
+}
+
+static inline bool
+rt2x00_has_cap_pre_tbtt_interrupt(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_PRE_TBTT_INTERRUPT);
+}
+
+static inline bool
+rt2x00_has_cap_link_tuning(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_LINK_TUNING);
+}
+
+static inline bool
+rt2x00_has_cap_frame_type(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_FRAME_TYPE);
+}
+
+static inline bool
+rt2x00_has_cap_rf_sequence(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_RF_SEQUENCE);
+}
+
+static inline bool
+rt2x00_has_cap_external_lna_a(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_EXTERNAL_LNA_A);
+}
+
+static inline bool
+rt2x00_has_cap_external_lna_bg(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_EXTERNAL_LNA_BG);
+}
+
+static inline bool
+rt2x00_has_cap_double_antenna(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_DOUBLE_ANTENNA);
+}
+
+static inline bool
+rt2x00_has_cap_bt_coexist(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_BT_COEXIST);
+}
+
+static inline bool
+rt2x00_has_cap_vco_recalibration(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_VCO_RECALIBRATION);
+}
+
+/**
+ * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
+ * @entry: Pointer to &struct queue_entry
+ *
+ * Returns -ENOMEM if mapping fail, 0 otherwise.
+ */
+int rt2x00queue_map_txskb(struct queue_entry *entry);
+
+/**
+ * rt2x00queue_unmap_skb - Unmap a skb from DMA.
+ * @entry: Pointer to &struct queue_entry
+ */
+void rt2x00queue_unmap_skb(struct queue_entry *entry);
+
+/**
+ * rt2x00queue_get_tx_queue - Convert tx queue index to queue pointer
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @queue: rt2x00 queue index (see &enum data_queue_qid).
+ *
+ * Returns NULL for non tx queues.
+ */
+static inline struct data_queue *
+rt2x00queue_get_tx_queue(struct rt2x00_dev *rt2x00dev,
+			 const enum data_queue_qid queue)
+{
+	if (queue < rt2x00dev->ops->tx_queues && rt2x00dev->tx)
+		return &rt2x00dev->tx[queue];
+
+	if (queue == QID_ATIM)
+		return rt2x00dev->atim;
+
+	return NULL;
+}
+
+/**
+ * rt2x00queue_get_entry - Get queue entry where the given index points to.
+ * @queue: Pointer to &struct data_queue from where we obtain the entry.
+ * @index: Index identifier for obtaining the correct index.
+ */
+struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
+					  enum queue_index index);
+
+/**
+ * rt2x00queue_pause_queue - Pause a data queue
+ * @queue: Pointer to &struct data_queue.
+ *
+ * This function will pause the data queue locally, preventing
+ * new frames to be added to the queue (while the hardware is
+ * still allowed to run).
+ */
+void rt2x00queue_pause_queue(struct data_queue *queue);
+
+/**
+ * rt2x00queue_unpause_queue - unpause a data queue
+ * @queue: Pointer to &struct data_queue.
+ *
+ * This function will unpause the data queue locally, allowing
+ * new frames to be added to the queue again.
+ */
+void rt2x00queue_unpause_queue(struct data_queue *queue);
+
+/**
+ * rt2x00queue_start_queue - Start a data queue
+ * @queue: Pointer to &struct data_queue.
+ *
+ * This function will start handling all pending frames in the queue.
+ */
+void rt2x00queue_start_queue(struct data_queue *queue);
+
+/**
+ * rt2x00queue_stop_queue - Halt a data queue
+ * @queue: Pointer to &struct data_queue.
+ *
+ * This function will stop all pending frames in the queue.
+ */
+void rt2x00queue_stop_queue(struct data_queue *queue);
+
+/**
+ * rt2x00queue_flush_queue - Flush a data queue
+ * @queue: Pointer to &struct data_queue.
+ * @drop: True to drop all pending frames.
+ *
+ * This function will flush the queue. After this call
+ * the queue is guaranteed to be empty.
+ */
+void rt2x00queue_flush_queue(struct data_queue *queue, bool drop);
+
+/**
+ * rt2x00queue_start_queues - Start all data queues
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * This function will loop through all available queues to start them
+ */
+void rt2x00queue_start_queues(struct rt2x00_dev *rt2x00dev);
+
+/**
+ * rt2x00queue_stop_queues - Halt all data queues
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * This function will loop through all available queues to stop
+ * any pending frames.
+ */
+void rt2x00queue_stop_queues(struct rt2x00_dev *rt2x00dev);
+
+/**
+ * rt2x00queue_flush_queues - Flush all data queues
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @drop: True to drop all pending frames.
+ *
+ * This function will loop through all available queues to flush
+ * any pending frames.
+ */
+void rt2x00queue_flush_queues(struct rt2x00_dev *rt2x00dev, bool drop);
+
+/*
+ * Debugfs handlers.
+ */
+/**
+ * rt2x00debug_dump_frame - Dump a frame to userspace through debugfs.
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ * @type: The type of frame that is being dumped.
+ * @skb: The skb containing the frame to be dumped.
+ */
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
+			    enum rt2x00_dump_type type, struct sk_buff *skb);
+#else
+static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
+					  enum rt2x00_dump_type type,
+					  struct sk_buff *skb)
+{
+}
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+/*
+ * Utility functions.
+ */
+u32 rt2x00lib_get_bssidx(struct rt2x00_dev *rt2x00dev,
+			 struct ieee80211_vif *vif);
+
+/*
+ * Interrupt context handlers.
+ */
+void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_dmastart(struct queue_entry *entry);
+void rt2x00lib_dmadone(struct queue_entry *entry);
+void rt2x00lib_txdone(struct queue_entry *entry,
+		      struct txdone_entry_desc *txdesc);
+void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status);
+void rt2x00lib_rxdone(struct queue_entry *entry, gfp_t gfp);
+
+/*
+ * mac80211 handlers.
+ */
+void rt2x00mac_tx(struct ieee80211_hw *hw,
+		  struct ieee80211_tx_control *control,
+		  struct sk_buff *skb);
+int rt2x00mac_start(struct ieee80211_hw *hw);
+void rt2x00mac_stop(struct ieee80211_hw *hw);
+int rt2x00mac_add_interface(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif);
+void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif);
+int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed);
+void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
+				unsigned int changed_flags,
+				unsigned int *total_flags,
+				u64 multicast);
+int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
+		      bool set);
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+		      struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+		      struct ieee80211_key_conf *key);
+#else
+#define rt2x00mac_set_key	NULL
+#endif /* CONFIG_RT2X00_LIB_CRYPTO */
+int rt2x00mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		      struct ieee80211_sta *sta);
+int rt2x00mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			 struct ieee80211_sta *sta);
+void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw,
+			     struct ieee80211_vif *vif,
+			     const u8 *mac_addr);
+void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif);
+int rt2x00mac_get_stats(struct ieee80211_hw *hw,
+			struct ieee80211_low_level_stats *stats);
+void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif,
+				struct ieee80211_bss_conf *bss_conf,
+				u32 changes);
+int rt2x00mac_conf_tx(struct ieee80211_hw *hw,
+		      struct ieee80211_vif *vif, u16 queue,
+		      const struct ieee80211_tx_queue_params *params);
+void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw);
+void rt2x00mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		     u32 queues, bool drop);
+int rt2x00mac_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant);
+int rt2x00mac_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant);
+void rt2x00mac_get_ringparam(struct ieee80211_hw *hw,
+			     u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
+bool rt2x00mac_tx_frames_pending(struct ieee80211_hw *hw);
+
+/*
+ * Driver allocation handlers.
+ */
+int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
+#ifdef CONFIG_PM
+int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
+int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
+#endif /* CONFIG_PM */
+
+#endif /* RT2X00_H */