add updated mac80211 - this no longer relies on patching includes in the kernel trees, but just uses its own instead

SVN-Revision: 9290

3 files changed, 1780 insertions, 0 deletions

diff --git a/package/mac80211/src/include/net/cfg80211.h b/package/mac80211/src/include/net/cfg80211.h
new file mode 100644
index 0000000000..d30960e175
--- /dev/null
+++ b/package/mac80211/src/include/net/cfg80211.h
@@ -0,0 +1,83 @@
+#ifndef __NET_CFG80211_H
+#define __NET_CFG80211_H
+
+#include <linux/netlink.h>
+#include <linux/skbuff.h>
+#include <linux/nl80211.h>
+#include <net/genetlink.h>
+
+/*
+ * 802.11 configuration in-kernel interface
+ *
+ * Copyright 2006, 2007	Johannes Berg <johannes@sipsolutions.net>
+ */
+
+/* Radiotap header iteration
+ *   implemented in net/wireless/radiotap.c
+ *   docs in Documentation/networking/radiotap-headers.txt
+ */
+/**
+ * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
+ * @rtheader: pointer to the radiotap header we are walking through
+ * @max_length: length of radiotap header in cpu byte ordering
+ * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
+ * @this_arg: pointer to current radiotap arg
+ * @arg_index: internal next argument index
+ * @arg: internal next argument pointer
+ * @next_bitmap: internal pointer to next present u32
+ * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
+ */
+
+struct ieee80211_radiotap_iterator {
+	struct ieee80211_radiotap_header *rtheader;
+	int max_length;
+	int this_arg_index;
+	u8 *this_arg;
+
+	int arg_index;
+	u8 *arg;
+	__le32 *next_bitmap;
+	u32 bitmap_shifter;
+};
+
+extern int ieee80211_radiotap_iterator_init(
+   struct ieee80211_radiotap_iterator *iterator,
+   struct ieee80211_radiotap_header *radiotap_header,
+   int max_length);
+
+extern int ieee80211_radiotap_iterator_next(
+   struct ieee80211_radiotap_iterator *iterator);
+
+
+/* from net/wireless.h */
+struct wiphy;
+
+/**
+ * struct cfg80211_ops - backend description for wireless configuration
+ *
+ * This struct is registered by fullmac card drivers and/or wireless stacks
+ * in order to handle configuration requests on their interfaces.
+ *
+ * All callbacks except where otherwise noted should return 0
+ * on success or a negative error code.
+ *
+ * All operations are currently invoked under rtnl for consistency with the
+ * wireless extensions but this is subject to reevaluation as soon as this
+ * code is used more widely and we have a first user without wext.
+ *
+ * @add_virtual_intf: create a new virtual interface with the given name
+ *
+ * @del_virtual_intf: remove the virtual interface determined by ifindex.
+ *
+ * @change_virtual_intf: change type of virtual interface
+ *
+ */
+struct cfg80211_ops {
+	int	(*add_virtual_intf)(struct wiphy *wiphy, char *name,
+				    enum nl80211_iftype type);
+	int	(*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
+	int	(*change_virtual_intf)(struct wiphy *wiphy, int ifindex,
+				       enum nl80211_iftype type);
+};
+
+#endif /* __NET_CFG80211_H */
diff --git a/package/mac80211/src/include/net/ieee80211_radiotap.h b/package/mac80211/src/include/net/ieee80211_radiotap.h
new file mode 100644
index 0000000000..dfd8bf66ce
--- /dev/null
+++ b/package/mac80211/src/include/net/ieee80211_radiotap.h
@@ -0,0 +1,268 @@
+/* $FreeBSD: src/sys/net80211/ieee80211_radiotap.h,v 1.5 2005/01/22 20:12:05 sam Exp $ */
+/* $NetBSD: ieee80211_radiotap.h,v 1.11 2005/06/22 06:16:02 dyoung Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004 David Young.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of David Young may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DAVID
+ * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ */
+
+/*
+ * Modifications to fit into the linux IEEE 802.11 stack,
+ * Mike Kershaw (dragorn@kismetwireless.net)
+ */
+
+#ifndef IEEE80211RADIOTAP_H
+#define IEEE80211RADIOTAP_H
+
+#include <linux/if_ether.h>
+#include <linux/kernel.h>
+#include <asm/unaligned.h>
+
+/* Radiotap header version (from official NetBSD feed) */
+#define IEEE80211RADIOTAP_VERSION	"1.5"
+/* Base version of the radiotap packet header data */
+#define PKTHDR_RADIOTAP_VERSION		0
+
+/* A generic radio capture format is desirable. There is one for
+ * Linux, but it is neither rigidly defined (there were not even
+ * units given for some fields) nor easily extensible.
+ *
+ * I suggest the following extensible radio capture format. It is
+ * based on a bitmap indicating which fields are present.
+ *
+ * I am trying to describe precisely what the application programmer
+ * should expect in the following, and for that reason I tell the
+ * units and origin of each measurement (where it applies), or else I
+ * use sufficiently weaselly language ("is a monotonically nondecreasing
+ * function of...") that I cannot set false expectations for lawyerly
+ * readers.
+ */
+
+/* XXX tcpdump/libpcap do not tolerate variable-length headers,
+ * yet, so we pad every radiotap header to 64 bytes. Ugh.
+ */
+#define IEEE80211_RADIOTAP_HDRLEN	64
+
+/* The radio capture header precedes the 802.11 header.
+ * All data in the header is little endian on all platforms.
+ */
+struct ieee80211_radiotap_header {
+	u8 it_version;		/* Version 0. Only increases
+				 * for drastic changes,
+				 * introduction of compatible
+				 * new fields does not count.
+				 */
+	u8 it_pad;
+	__le16 it_len;		/* length of the whole
+				 * header in bytes, including
+				 * it_version, it_pad,
+				 * it_len, and data fields.
+				 */
+	__le32 it_present;	/* A bitmap telling which
+				 * fields are present. Set bit 31
+				 * (0x80000000) to extend the
+				 * bitmap by another 32 bits.
+				 * Additional extensions are made
+				 * by setting bit 31.
+				 */
+};
+
+/* Name                                 Data type    Units
+ * ----                                 ---------    -----
+ *
+ * IEEE80211_RADIOTAP_TSFT              __le64       microseconds
+ *
+ *      Value in microseconds of the MAC's 64-bit 802.11 Time
+ *      Synchronization Function timer when the first bit of the
+ *      MPDU arrived at the MAC. For received frames, only.
+ *
+ * IEEE80211_RADIOTAP_CHANNEL           2 x __le16   MHz, bitmap
+ *
+ *      Tx/Rx frequency in MHz, followed by flags (see below).
+ *
+ * IEEE80211_RADIOTAP_FHSS              __le16       see below
+ *
+ *      For frequency-hopping radios, the hop set (first byte)
+ *      and pattern (second byte).
+ *
+ * IEEE80211_RADIOTAP_RATE              u8           500kb/s
+ *
+ *      Tx/Rx data rate
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTSIGNAL     s8           decibels from
+ *                                                   one milliwatt (dBm)
+ *
+ *      RF signal power at the antenna, decibel difference from
+ *      one milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTNOISE      s8           decibels from
+ *                                                   one milliwatt (dBm)
+ *
+ *      RF noise power at the antenna, decibel difference from one
+ *      milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTSIGNAL      u8           decibel (dB)
+ *
+ *      RF signal power at the antenna, decibel difference from an
+ *      arbitrary, fixed reference.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTNOISE       u8           decibel (dB)
+ *
+ *      RF noise power at the antenna, decibel difference from an
+ *      arbitrary, fixed reference point.
+ *
+ * IEEE80211_RADIOTAP_LOCK_QUALITY      __le16       unitless
+ *
+ *      Quality of Barker code lock. Unitless. Monotonically
+ *      nondecreasing with "better" lock strength. Called "Signal
+ *      Quality" in datasheets.  (Is there a standard way to measure
+ *      this?)
+ *
+ * IEEE80211_RADIOTAP_TX_ATTENUATION    __le16       unitless
+ *
+ *      Transmit power expressed as unitless distance from max
+ *      power set at factory calibration.  0 is max power.
+ *      Monotonically nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DB_TX_ATTENUATION __le16       decibels (dB)
+ *
+ *      Transmit power expressed as decibel distance from max power
+ *      set at factory calibration.  0 is max power.  Monotonically
+ *      nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DBM_TX_POWER      s8           decibels from
+ *                                                   one milliwatt (dBm)
+ *
+ *      Transmit power expressed as dBm (decibels from a 1 milliwatt
+ *      reference). This is the absolute power level measured at
+ *      the antenna port.
+ *
+ * IEEE80211_RADIOTAP_FLAGS             u8           bitmap
+ *
+ *      Properties of transmitted and received frames. See flags
+ *      defined below.
+ *
+ * IEEE80211_RADIOTAP_ANTENNA           u8           antenna index
+ *
+ *      Unitless indication of the Rx/Tx antenna for this packet.
+ *      The first antenna is antenna 0.
+ *
+ * IEEE80211_RADIOTAP_RX_FLAGS          __le16       bitmap
+ *
+ *     Properties of received frames. See flags defined below.
+ *
+ * IEEE80211_RADIOTAP_TX_FLAGS          __le16       bitmap
+ *
+ *     Properties of transmitted frames. See flags defined below.
+ *
+ * IEEE80211_RADIOTAP_RTS_RETRIES       u8           data
+ *
+ *     Number of rts retries a transmitted frame used.
+ *
+ * IEEE80211_RADIOTAP_DATA_RETRIES      u8           data
+ *
+ *     Number of unicast retries a transmitted frame used.
+ *
+ */
+enum ieee80211_radiotap_type {
+	IEEE80211_RADIOTAP_TSFT = 0,
+	IEEE80211_RADIOTAP_FLAGS = 1,
+	IEEE80211_RADIOTAP_RATE = 2,
+	IEEE80211_RADIOTAP_CHANNEL = 3,
+	IEEE80211_RADIOTAP_FHSS = 4,
+	IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5,
+	IEEE80211_RADIOTAP_DBM_ANTNOISE = 6,
+	IEEE80211_RADIOTAP_LOCK_QUALITY = 7,
+	IEEE80211_RADIOTAP_TX_ATTENUATION = 8,
+	IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9,
+	IEEE80211_RADIOTAP_DBM_TX_POWER = 10,
+	IEEE80211_RADIOTAP_ANTENNA = 11,
+	IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
+	IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
+	IEEE80211_RADIOTAP_RX_FLAGS = 14,
+	IEEE80211_RADIOTAP_TX_FLAGS = 15,
+	IEEE80211_RADIOTAP_RTS_RETRIES = 16,
+	IEEE80211_RADIOTAP_DATA_RETRIES = 17,
+	IEEE80211_RADIOTAP_EXT = 31
+};
+
+/* Channel flags. */
+#define	IEEE80211_CHAN_TURBO	0x0010	/* Turbo channel */
+#define	IEEE80211_CHAN_CCK	0x0020	/* CCK channel */
+#define	IEEE80211_CHAN_OFDM	0x0040	/* OFDM channel */
+#define	IEEE80211_CHAN_2GHZ	0x0080	/* 2 GHz spectrum channel. */
+#define	IEEE80211_CHAN_5GHZ	0x0100	/* 5 GHz spectrum channel */
+#define	IEEE80211_CHAN_PASSIVE	0x0200	/* Only passive scan allowed */
+#define	IEEE80211_CHAN_DYN	0x0400	/* Dynamic CCK-OFDM channel */
+#define	IEEE80211_CHAN_GFSK	0x0800	/* GFSK channel (FHSS PHY) */
+
+/* For IEEE80211_RADIOTAP_FLAGS */
+#define	IEEE80211_RADIOTAP_F_CFP	0x01	/* sent/received
+						 * during CFP
+						 */
+#define	IEEE80211_RADIOTAP_F_SHORTPRE	0x02	/* sent/received
+						 * with short
+						 * preamble
+						 */
+#define	IEEE80211_RADIOTAP_F_WEP	0x04	/* sent/received
+						 * with WEP encryption
+						 */
+#define	IEEE80211_RADIOTAP_F_FRAG	0x08	/* sent/received
+						 * with fragmentation
+						 */
+#define	IEEE80211_RADIOTAP_F_FCS	0x10	/* frame includes FCS */
+#define	IEEE80211_RADIOTAP_F_DATAPAD	0x20	/* frame has padding between
+						 * 802.11 header and payload
+						 * (to 32-bit boundary)
+						 */
+/* For IEEE80211_RADIOTAP_RX_FLAGS */
+#define IEEE80211_RADIOTAP_F_RX_BADFCS	0x0001	/* frame failed crc check */
+
+/* For IEEE80211_RADIOTAP_TX_FLAGS */
+#define IEEE80211_RADIOTAP_F_TX_FAIL	0x0001	/* failed due to excessive
+						 * retries */
+#define IEEE80211_RADIOTAP_F_TX_CTS	0x0002	/* used cts 'protection' */
+#define IEEE80211_RADIOTAP_F_TX_RTS	0x0004	/* used rts/cts handshake */
+
+/* Ugly macro to convert literal channel numbers into their mhz equivalents
+ * There are certianly some conditions that will break this (like feeding it '30')
+ * but they shouldn't arise since nothing talks on channel 30. */
+#define ieee80211chan2mhz(x) \
+	(((x) <= 14) ? \
+	(((x) == 14) ? 2484 : ((x) * 5) + 2407) : \
+	((x) + 1000) * 5)
+
+/* helpers */
+static inline int ieee80211_get_radiotap_len(unsigned char *data)
+{
+	struct ieee80211_radiotap_header *hdr =
+		(struct ieee80211_radiotap_header *)data;
+
+	return le16_to_cpu(get_unaligned(&hdr->it_len));
+}
+
+#endif				/* IEEE80211_RADIOTAP_H */
diff --git a/package/mac80211/src/include/net/mac80211.h b/package/mac80211/src/include/net/mac80211.h
new file mode 100644
index 0000000000..2b1bffbf5e
--- /dev/null
+++ b/package/mac80211/src/include/net/mac80211.h
@@ -0,0 +1,1429 @@
+/*
+ * mac80211 <-> driver interface
+ *
+ * Copyright 2002-2005, Devicescape Software, Inc.
+ * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef MAC80211_H
+#define MAC80211_H
+
+#include <linux/kernel.h>
+#include <linux/if_ether.h>
+#include <linux/skbuff.h>
+#include <linux/wireless.h>
+#include <linux/device.h>
+#include <linux/ieee80211.h>
+#include <net/wireless.h>
+#include <net/cfg80211.h>
+
+/**
+ * DOC: Introduction
+ *
+ * mac80211 is the Linux stack for 802.11 hardware that implements
+ * only partial functionality in hard- or firmware. This document
+ * defines the interface between mac80211 and low-level hardware
+ * drivers.
+ */
+
+/**
+ * DOC: Calling mac80211 from interrupts
+ *
+ * Only ieee80211_tx_status_irqsafe() and ieee80211_rx_irqsafe() can be
+ * called in hardware interrupt context. The low-level driver must not call any
+ * other functions in hardware interrupt context. If there is a need for such
+ * call, the low-level driver should first ACK the interrupt and perform the
+ * IEEE 802.11 code call after this, e.g. from a scheduled workqueue function.
+ */
+
+/**
+ * DOC: Warning
+ *
+ * If you're reading this document and not the header file itself, it will
+ * be incomplete because not all documentation has been converted yet.
+ */
+
+/**
+ * DOC: Frame format
+ *
+ * As a general rule, when frames are passed between mac80211 and the driver,
+ * they start with the IEEE 802.11 header and include the same octets that are
+ * sent over the air except for the FCS which should be calculated by the
+ * hardware.
+ *
+ * There are, however, various exceptions to this rule for advanced features:
+ *
+ * The first exception is for hardware encryption and decryption offload
+ * where the IV/ICV may or may not be generated in hardware.
+ *
+ * Secondly, when the hardware handles fragmentation, the frame handed to
+ * the driver from mac80211 is the MSDU, not the MPDU.
+ *
+ * Finally, for received frames, the driver is able to indicate that it has
+ * filled a radiotap header and put that in front of the frame; if it does
+ * not do so then mac80211 may add this under certain circumstances.
+ */
+
+#define IEEE80211_CHAN_W_SCAN 0x00000001
+#define IEEE80211_CHAN_W_ACTIVE_SCAN 0x00000002
+#define IEEE80211_CHAN_W_IBSS 0x00000004
+
+/* Channel information structure. Low-level driver is expected to fill in chan,
+ * freq, and val fields. Other fields will be filled in by 80211.o based on
+ * hostapd information and low-level driver does not need to use them. The
+ * limits for each channel will be provided in 'struct ieee80211_conf' when
+ * configuring the low-level driver with hw->config callback. If a device has
+ * a default regulatory domain, IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED
+ * can be set to let the driver configure all fields */
+struct ieee80211_channel {
+	short chan; /* channel number (IEEE 802.11) */
+	short freq; /* frequency in MHz */
+	int val; /* hw specific value for the channel */
+	int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */
+	unsigned char power_level;
+	unsigned char antenna_max;
+};
+
+#define IEEE80211_RATE_ERP 0x00000001
+#define IEEE80211_RATE_BASIC 0x00000002
+#define IEEE80211_RATE_PREAMBLE2 0x00000004
+#define IEEE80211_RATE_SUPPORTED 0x00000010
+#define IEEE80211_RATE_OFDM 0x00000020
+#define IEEE80211_RATE_CCK 0x00000040
+#define IEEE80211_RATE_MANDATORY 0x00000100
+
+#define IEEE80211_RATE_CCK_2 (IEEE80211_RATE_CCK | IEEE80211_RATE_PREAMBLE2)
+#define IEEE80211_RATE_MODULATION(f) \
+	(f & (IEEE80211_RATE_CCK | IEEE80211_RATE_OFDM))
+
+/* Low-level driver should set PREAMBLE2, OFDM and CCK flags.
+ * BASIC, SUPPORTED, ERP, and MANDATORY flags are set in 80211.o based on the
+ * configuration. */
+struct ieee80211_rate {
+	int rate; /* rate in 100 kbps */
+	int val; /* hw specific value for the rate */
+	int flags; /* IEEE80211_RATE_ flags */
+	int val2; /* hw specific value for the rate when using short preamble
+		   * (only when IEEE80211_RATE_PREAMBLE2 flag is set, i.e., for
+		   * 2, 5.5, and 11 Mbps) */
+	signed char min_rssi_ack;
+	unsigned char min_rssi_ack_delta;
+
+	/* following fields are set by 80211.o and need not be filled by the
+	 * low-level driver */
+	int rate_inv; /* inverse of the rate (LCM(all rates) / rate) for
+		       * optimizing channel utilization estimates */
+};
+
+/**
+ * enum ieee80211_phymode - PHY modes
+ *
+ * @MODE_IEEE80211A: 5GHz as defined by 802.11a/802.11h
+ * @MODE_IEEE80211B: 2.4 GHz as defined by 802.11b
+ * @MODE_IEEE80211G: 2.4 GHz as defined by 802.11g (with OFDM),
+ *	backwards compatible with 11b mode
+ * @NUM_IEEE80211_MODES: internal
+ */
+enum ieee80211_phymode {
+	MODE_IEEE80211A,
+	MODE_IEEE80211B,
+	MODE_IEEE80211G,
+
+	/* keep last */
+	NUM_IEEE80211_MODES
+};
+
+/**
+ * struct ieee80211_hw_mode - PHY mode definition
+ *
+ * This structure describes the capabilities supported by the device
+ * in a single PHY mode.
+ *
+ * @mode: the PHY mode for this definition
+ * @num_channels: number of supported channels
+ * @channels: pointer to array of supported channels
+ * @num_rates: number of supported bitrates
+ * @rates: pointer to array of supported bitrates
+ * @list: internal
+ */
+struct ieee80211_hw_mode {
+	struct list_head list;
+	struct ieee80211_channel *channels;
+	struct ieee80211_rate *rates;
+	enum ieee80211_phymode mode;
+	int num_channels;
+	int num_rates;
+};
+
+/**
+ * struct ieee80211_tx_queue_params - transmit queue configuration
+ *
+ * The information provided in this structure is required for QoS
+ * transmit queue configuration.
+ *
+ * @aifs: arbitration interface space [0..255, -1: use default]
+ * @cw_min: minimum contention window [will be a value of the form
+ *	2^n-1 in the range 1..1023; 0: use default]
+ * @cw_max: maximum contention window [like @cw_min]
+ * @burst_time: maximum burst time in units of 0.1ms, 0 meaning disabled
+ */
+struct ieee80211_tx_queue_params {
+	int aifs;
+	int cw_min;
+	int cw_max;
+	int burst_time;
+};
+
+/**
+ * struct ieee80211_tx_queue_stats_data - transmit queue statistics
+ *
+ * @len: number of packets in queue
+ * @limit: queue length limit
+ * @count: number of frames sent
+ */
+struct ieee80211_tx_queue_stats_data {
+	unsigned int len;
+	unsigned int limit;
+	unsigned int count;
+};
+
+/**
+ * enum ieee80211_tx_queue - transmit queue number
+ *
+ * These constants are used with some callbacks that take a
+ * queue number to set parameters for a queue.
+ *
+ * @IEEE80211_TX_QUEUE_DATA0: data queue 0
+ * @IEEE80211_TX_QUEUE_DATA1: data queue 1
+ * @IEEE80211_TX_QUEUE_DATA2: data queue 2
+ * @IEEE80211_TX_QUEUE_DATA3: data queue 3
+ * @IEEE80211_TX_QUEUE_DATA4: data queue 4
+ * @IEEE80211_TX_QUEUE_SVP: ??
+ * @NUM_TX_DATA_QUEUES: number of data queues
+ * @IEEE80211_TX_QUEUE_AFTER_BEACON: transmit queue for frames to be
+ *	sent after a beacon
+ * @IEEE80211_TX_QUEUE_BEACON: transmit queue for beacon frames
+ */
+enum ieee80211_tx_queue {
+	IEEE80211_TX_QUEUE_DATA0,
+	IEEE80211_TX_QUEUE_DATA1,
+	IEEE80211_TX_QUEUE_DATA2,
+	IEEE80211_TX_QUEUE_DATA3,
+	IEEE80211_TX_QUEUE_DATA4,
+	IEEE80211_TX_QUEUE_SVP,
+
+	NUM_TX_DATA_QUEUES,
+
+/* due to stupidity in the sub-ioctl userspace interface, the items in
+ * this struct need to have fixed values. As soon as it is removed, we can
+ * fix these entries. */
+	IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
+	IEEE80211_TX_QUEUE_BEACON = 7
+};
+
+struct ieee80211_tx_queue_stats {
+	struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES];
+};
+
+struct ieee80211_low_level_stats {
+	unsigned int dot11ACKFailureCount;
+	unsigned int dot11RTSFailureCount;
+	unsigned int dot11FCSErrorCount;
+	unsigned int dot11RTSSuccessCount;
+};
+
+/* Transmit control fields. This data structure is passed to low-level driver
+ * with each TX frame. The low-level driver is responsible for configuring
+ * the hardware to use given values (depending on what is supported). */
+
+struct ieee80211_tx_control {
+	int tx_rate; /* Transmit rate, given as the hw specific value for the
+		      * rate (from struct ieee80211_rate) */
+	int rts_cts_rate; /* Transmit rate for RTS/CTS frame, given as the hw
+			   * specific value for the rate (from
+			   * struct ieee80211_rate) */
+
+#define IEEE80211_TXCTL_REQ_TX_STATUS	(1<<0)/* request TX status callback for
+						* this frame */
+#define IEEE80211_TXCTL_DO_NOT_ENCRYPT	(1<<1) /* send this frame without
+						* encryption; e.g., for EAPOL
+						* frames */
+#define IEEE80211_TXCTL_USE_RTS_CTS	(1<<2) /* use RTS-CTS before sending
+						* frame */
+#define IEEE80211_TXCTL_USE_CTS_PROTECT	(1<<3) /* use CTS protection for the
+						* frame (e.g., for combined
+						* 802.11g / 802.11b networks) */
+#define IEEE80211_TXCTL_NO_ACK		(1<<4) /* tell the low level not to
+						* wait for an ack */
+#define IEEE80211_TXCTL_RATE_CTRL_PROBE	(1<<5)
+#define IEEE80211_TXCTL_CLEAR_DST_MASK	(1<<6)
+#define IEEE80211_TXCTL_REQUEUE		(1<<7)
+#define IEEE80211_TXCTL_FIRST_FRAGMENT	(1<<8) /* this is a first fragment of
+						* the frame */
+#define IEEE80211_TXCTL_LONG_RETRY_LIMIT (1<<10) /* this frame should be send
+						  * using the through
+						  * set_retry_limit configured
+						  * long retry value */
+	u32 flags;			       /* tx control flags defined
+						* above */
+	u8 key_idx;		/* keyidx from hw->set_key(), undefined if
+				 * IEEE80211_TXCTL_DO_NOT_ENCRYPT is set */
+	u8 retry_limit;		/* 1 = only first attempt, 2 = one retry, ..
+				 * This could be used when set_retry_limit
+				 * is not implemented by the driver */
+	u8 power_level;		/* per-packet transmit power level, in dBm */
+	u8 antenna_sel_tx; 	/* 0 = default/diversity, 1 = Ant0, 2 = Ant1 */
+	u8 icv_len;		/* length of the ICV/MIC field in octets */
+	u8 iv_len;		/* length of the IV field in octets */
+	u8 queue;		/* hardware queue to use for this frame;
+				 * 0 = highest, hw->queues-1 = lowest */
+	struct ieee80211_rate *rate;		/* internal 80211.o rate */
+	struct ieee80211_rate *rts_rate;	/* internal 80211.o rate
+						 * for RTS/CTS */
+	int alt_retry_rate; /* retry rate for the last retries, given as the
+			     * hw specific value for the rate (from
+			     * struct ieee80211_rate). To be used to limit
+			     * packet dropping when probing higher rates, if hw
+			     * supports multiple retry rates. -1 = not used */
+	int type;	/* internal */
+	int ifindex;	/* internal */
+};
+
+
+/**
+ * enum mac80211_rx_flags - receive flags
+ *
+ * These flags are used with the @flag member of &struct ieee80211_rx_status.
+ * @RX_FLAG_MMIC_ERROR: Michael MIC error was reported on this frame.
+ *	Use together with %RX_FLAG_MMIC_STRIPPED.
+ * @RX_FLAG_DECRYPTED: This frame was decrypted in hardware.
+ * @RX_FLAG_RADIOTAP: This frame starts with a radiotap header.
+ * @RX_FLAG_MMIC_STRIPPED: the Michael MIC is stripped off this frame,
+ *	verification has been done by the hardware.
+ * @RX_FLAG_IV_STRIPPED: The IV/ICV are stripped from this frame.
+ *	If this flag is set, the stack cannot do any replay detection
+ *	hence the driver or hardware will have to do that.
+ * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on
+ *	the frame.
+ * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on
+ *	the frame.
+ */
+enum mac80211_rx_flags {
+	RX_FLAG_MMIC_ERROR	= 1<<0,
+	RX_FLAG_DECRYPTED	= 1<<1,
+	RX_FLAG_RADIOTAP	= 1<<2,
+	RX_FLAG_MMIC_STRIPPED	= 1<<3,
+	RX_FLAG_IV_STRIPPED	= 1<<4,
+	RX_FLAG_FAILED_FCS_CRC	= 1<<5,
+	RX_FLAG_FAILED_PLCP_CRC = 1<<6,
+};
+
+/**
+ * struct ieee80211_rx_status - receive status
+ *
+ * The low-level driver should provide this information (the subset
+ * supported by hardware) to the 802.11 code with each received
+ * frame.
+ * @mactime: MAC timestamp as defined by 802.11
+ * @freq: frequency the radio was tuned to when receiving this frame, in MHz
+ * @channel: channel the radio was tuned to
+ * @phymode: active PHY mode
+ * @ssi: signal strength when receiving this frame
+ * @signal: used as 'qual' in statistics reporting
+ * @noise: PHY noise when receiving this frame
+ * @antenna: antenna used
+ * @rate: data rate
+ * @flag: %RX_FLAG_*
+ */
+struct ieee80211_rx_status {
+	u64 mactime;
+	int freq;
+	int channel;
+	enum ieee80211_phymode phymode;
+	int ssi;
+	int signal;
+	int noise;
+	int antenna;
+	int rate;
+	int flag;
+};
+
+/**
+ * enum ieee80211_tx_status_flags - transmit status flags
+ *
+ * Status flags to indicate various transmit conditions.
+ *
+ * @IEEE80211_TX_STATUS_TX_FILTERED: The frame was not transmitted
+ *	because the destination STA was in powersave mode.
+ *
+ * @IEEE80211_TX_STATUS_ACK: Frame was acknowledged
+ */
+enum ieee80211_tx_status_flags {
+	IEEE80211_TX_STATUS_TX_FILTERED	= 1<<0,
+	IEEE80211_TX_STATUS_ACK		= 1<<1,
+};
+
+/**
+ * struct ieee80211_tx_status - transmit status
+ *
+ * As much information as possible should be provided for each transmitted
+ * frame with ieee80211_tx_status().
+ *
+ * @control: a copy of the &struct ieee80211_tx_control passed to the driver
+ *	in the tx() callback.
+ *
+ * @flags: transmit status flags, defined above
+ *
+ * @ack_signal: signal strength of the ACK frame
+ *
+ * @excessive_retries: set to 1 if the frame was retried many times
+ *	but not acknowledged
+ *
+ * @retry_count: number of retries
+ *
+ * @queue_length: ?? REMOVE
+ * @queue_number: ?? REMOVE
+ */
+struct ieee80211_tx_status {
+	struct ieee80211_tx_control control;
+	u8 flags;
+	bool excessive_retries;
+	u8 retry_count;
+	int ack_signal;
+	int queue_length;
+	int queue_number;
+};
+
+/**
+ * enum ieee80211_conf_flags - configuration flags
+ *
+ * Flags to define PHY configuration options
+ *
+ * @IEEE80211_CONF_SHORT_SLOT_TIME: use 802.11g short slot time
+ * @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported)
+ *
+ */
+enum ieee80211_conf_flags {
+	IEEE80211_CONF_SHORT_SLOT_TIME	= 1<<0,
+	IEEE80211_CONF_RADIOTAP		= 1<<1,
+};
+
+/**
+ * struct ieee80211_conf - configuration of the device
+ *
+ * This struct indicates how the driver shall configure the hardware.
+ *
+ * @radio_enabled: when zero, driver is required to switch off the radio.
+ *	TODO make a flag
+ * @channel: IEEE 802.11 channel number
+ * @freq: frequency in MHz
+ * @channel_val: hardware specific channel value for the channel
+ * @phymode: PHY mode to activate (REMOVE)
+ * @chan: channel to switch to, pointer to the channel information
+ * @mode: pointer to mode definition
+ * @regulatory_domain: ??
+ * @beacon_int: beacon interval (TODO make interface config)
+ * @flags: configuration flags defined above
+ * @power_level: transmit power limit for current regulatory domain in dBm
+ * @antenna_max: maximum antenna gain
+ * @antenna_sel_tx: transmit antenna selection, 0: default/diversity,
+ *	1/2: antenna 0/1
+ * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx
+ */
+struct ieee80211_conf {
+	int channel;			/* IEEE 802.11 channel number */
+	int freq;			/* MHz */
+	int channel_val;		/* hw specific value for the channel */
+
+	enum ieee80211_phymode phymode;
+	struct ieee80211_channel *chan;
+	struct ieee80211_hw_mode *mode;
+	unsigned int regulatory_domain;
+	int radio_enabled;
+
+	int beacon_int;
+	u32 flags;
+	u8 power_level;
+	u8 antenna_max;
+	u8 antenna_sel_tx;
+	u8 antenna_sel_rx;
+};
+
+/**
+ * enum ieee80211_if_types - types of 802.11 network interfaces
+ *
+ * @IEEE80211_IF_TYPE_INVALID: invalid interface type, not used
+ *	by mac80211 itself
+ * @IEEE80211_IF_TYPE_AP: interface in AP mode.
+ * @IEEE80211_IF_TYPE_MGMT: special interface for communication with hostap
+ *	daemon. Drivers should never see this type.
+ * @IEEE80211_IF_TYPE_STA: interface in STA (client) mode.
+ * @IEEE80211_IF_TYPE_IBSS: interface in IBSS (ad-hoc) mode.
+ * @IEEE80211_IF_TYPE_MNTR: interface in monitor (rfmon) mode.
+ * @IEEE80211_IF_TYPE_WDS: interface in WDS mode.
+ * @IEEE80211_IF_TYPE_VLAN: VLAN interface bound to an AP, drivers
+ *	will never see this type.
+ */
+enum ieee80211_if_types {
+	IEEE80211_IF_TYPE_INVALID,
+	IEEE80211_IF_TYPE_AP,
+	IEEE80211_IF_TYPE_STA,
+	IEEE80211_IF_TYPE_IBSS,
+	IEEE80211_IF_TYPE_MNTR,
+	IEEE80211_IF_TYPE_WDS,
+	IEEE80211_IF_TYPE_VLAN,
+};
+
+/**
+ * struct ieee80211_if_init_conf - initial configuration of an interface
+ *
+ * @if_id: internal interface ID. This number has no particular meaning to
+ *	drivers and the only allowed usage is to pass it to
+ *	ieee80211_beacon_get() and ieee80211_get_buffered_bc() functions.
+ *	This field is not valid for monitor interfaces
+ *	(interfaces of %IEEE80211_IF_TYPE_MNTR type).
+ * @type: one of &enum ieee80211_if_types constants. Determines the type of
+ *	added/removed interface.
+ * @mac_addr: pointer to MAC address of the interface. This pointer is valid
+ *	until the interface is removed (i.e. it cannot be used after
+ *	remove_interface() callback was called for this interface).
+ *
+ * This structure is used in add_interface() and remove_interface()
+ * callbacks of &struct ieee80211_hw.
+ *
+ * When you allow multiple interfaces to be added to your PHY, take care
+ * that the hardware can actually handle multiple MAC addresses. However,
+ * also take care that when there's no interface left with mac_addr != %NULL
+ * you remove the MAC address from the device to avoid acknowledging packets
+ * in pure monitor mode.
+ */
+struct ieee80211_if_init_conf {
+	int if_id;
+	enum ieee80211_if_types type;
+	void *mac_addr;
+};
+
+/**
+ * struct ieee80211_if_conf - configuration of an interface
+ *
+ * @type: type of the interface. This is always the same as was specified in
+ *	&struct ieee80211_if_init_conf. The type of an interface never changes
+ *	during the life of the interface; this field is present only for
+ *	convenience.
+ * @bssid: BSSID of the network we are associated to/creating.
+ * @ssid: used (together with @ssid_len) by drivers for hardware that
+ *	generate beacons independently. The pointer is valid only during the
+ *	config_interface() call, so copy the value somewhere if you need
+ *	it.
+ * @ssid_len: length of the @ssid field.
+ * @beacon: beacon template. Valid only if @host_gen_beacon_template in
+ *	&struct ieee80211_hw is set. The driver is responsible of freeing
+ *	the sk_buff.
+ * @beacon_control: tx_control for the beacon template, this field is only
+ *	valid when the @beacon field was set.
+ *
+ * This structure is passed to the config_interface() callback of
+ * &struct ieee80211_hw.
+ */
+struct ieee80211_if_conf {
+	int type;
+	u8 *bssid;
+	u8 *ssid;
+	size_t ssid_len;
+	struct sk_buff *beacon;
+	struct ieee80211_tx_control *beacon_control;
+};
+
+/**
+ * enum ieee80211_key_alg - key algorithm
+ * @ALG_WEP: WEP40 or WEP104
+ * @ALG_TKIP: TKIP
+ * @ALG_CCMP: CCMP (AES)
+ */
+enum ieee80211_key_alg {
+	ALG_WEP,
+	ALG_TKIP,
+	ALG_CCMP,
+};
+
+
+/**
+ * enum ieee80211_key_flags - key flags
+ *
+ * These flags are used for communication about keys between the driver
+ * and mac80211, with the @flags parameter of &struct ieee80211_key_conf.
+ *
+ * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates
+ *	that the STA this key will be used with could be using QoS.
+ * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the
+ *	driver to indicate that it requires IV generation for this
+ *	particular key.
+ * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by
+ *	the driver for a TKIP key if it requires Michael MIC
+ *	generation in software.
+ */
+enum ieee80211_key_flags {
+	IEEE80211_KEY_FLAG_WMM_STA	= 1<<0,
+	IEEE80211_KEY_FLAG_GENERATE_IV	= 1<<1,
+	IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2,
+};
+
+/**
+ * struct ieee80211_key_conf - key information
+ *
+ * This key information is given by mac80211 to the driver by
+ * the set_key() callback in &struct ieee80211_ops.
+ *
+ * @hw_key_idx: To be set by the driver, this is the key index the driver
+ *	wants to be given when a frame is transmitted and needs to be
+ *	encrypted in hardware.
+ * @alg: The key algorithm.
+ * @flags: key flags, see &enum ieee80211_key_flags.
+ * @keyidx: the key index (0-3)
+ * @keylen: key material length
+ * @key: key material
+ */
+struct ieee80211_key_conf {
+	enum ieee80211_key_alg alg;
+	u8 hw_key_idx;
+	u8 flags;
+	s8 keyidx;
+	u8 keylen;
+	u8 key[0];
+};
+
+#define IEEE80211_SEQ_COUNTER_RX	0
+#define IEEE80211_SEQ_COUNTER_TX	1
+
+/**
+ * enum set_key_cmd - key command
+ *
+ * Used with the set_key() callback in &struct ieee80211_ops, this
+ * indicates whether a key is being removed or added.
+ *
+ * @SET_KEY: a key is set
+ * @DISABLE_KEY: a key must be disabled
+ */
+enum set_key_cmd {
+	SET_KEY, DISABLE_KEY,
+};
+
+/**
+ * enum sta_notify_cmd - sta notify command
+ *
+ * Used with the sta_notify() callback in &struct ieee80211_ops, this
+ * indicates addition and removal of a station to station table
+ *
+ * @STA_NOTIFY_ADD: a station was added to the station table
+ * @STA_NOTIFY_REMOVE: a station being removed from the station table
+ */
+enum sta_notify_cmd {
+	STA_NOTIFY_ADD, STA_NOTIFY_REMOVE
+};
+
+/**
+ * enum ieee80211_hw_flags - hardware flags
+ *
+ * These flags are used to indicate hardware capabilities to
+ * the stack. Generally, flags here should have their meaning
+ * done in a way that the simplest hardware doesn't need setting
+ * any particular flags. There are some exceptions to this rule,
+ * however, so you are advised to review these flags carefully.
+ *
+ * @IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE:
+ *	The device only needs to be supplied with a beacon template.
+ *	If you need the host to generate each beacon then don't use
+ *	this flag and call ieee80211_beacon_get() when you need the
+ *	next beacon frame. Note that if you set this flag, you must
+ *	implement the set_tim() callback for powersave mode to work
+ *	properly.
+ *	This flag is only relevant for access-point mode.
+ *
+ * @IEEE80211_HW_RX_INCLUDES_FCS:
+ *	Indicates that received frames passed to the stack include
+ *	the FCS at the end.
+ *
+ * @IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING:
+ *	Some wireless LAN chipsets buffer broadcast/multicast frames
+ *	for power saving stations in the hardware/firmware and others
+ *	rely on the host system for such buffering. This option is used
+ *	to configure the IEEE 802.11 upper layer to buffer broadcast and
+ *	multicast frames when there are power saving stations so that
+ *	the driver can fetch them with ieee80211_get_buffered_bc(). Note
+ *	that not setting this flag works properly only when the
+ *	%IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is also not set because
+ *	otherwise the stack will not know when the DTIM beacon was sent.
+ *
+ * @IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED:
+ *	Channels are already configured to the default regulatory domain
+ *	specified in the device's EEPROM
+ */
+enum ieee80211_hw_flags {
+	IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE		= 1<<0,
+	IEEE80211_HW_RX_INCLUDES_FCS			= 1<<1,
+	IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING	= 1<<2,
+	IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED	= 1<<3,
+};
+
+/**
+ * struct ieee80211_hw - hardware information and state
+ *
+ * This structure contains the configuration and hardware
+ * information for an 802.11 PHY.
+ *
+ * @wiphy: This points to the &struct wiphy allocated for this
+ *	802.11 PHY. You must fill in the @perm_addr and @dev
+ *	members of this structure using SET_IEEE80211_DEV()
+ *	and SET_IEEE80211_PERM_ADDR().
+ *
+ * @conf: &struct ieee80211_conf, device configuration, don't use.
+ *
+ * @workqueue: single threaded workqueue available for driver use,
+ *	allocated by mac80211 on registration and flushed on
+ *	unregistration.
+ *
+ * @priv: pointer to private area that was allocated for driver use
+ *	along with this structure.
+ *
+ * @flags: hardware flags, see &enum ieee80211_hw_flags.
+ *
+ * @extra_tx_headroom: headroom to reserve in each transmit skb
+ *	for use by the driver (e.g. for transmit headers.)
+ *
+ * @channel_change_time: time (in microseconds) it takes to change channels.
+ *
+ * @max_rssi: Maximum value for ssi in RX information, use
+ *	negative numbers for dBm and 0 to indicate no support.
+ *
+ * @max_signal: like @max_rssi, but for the signal value.
+ *
+ * @max_noise: like @max_rssi, but for the noise value.
+ *
+ * @queues: number of available hardware transmit queues for
+ *	data packets. WMM/QoS requires at least four.
+ */
+struct ieee80211_hw {
+	struct ieee80211_conf conf;
+	struct wiphy *wiphy;
+	struct workqueue_struct *workqueue;
+	void *priv;
+	u32 flags;
+	unsigned int extra_tx_headroom;
+	int channel_change_time;
+	u8 queues;
+	s8 max_rssi;
+	s8 max_signal;
+	s8 max_noise;
+};
+
+/**
+ * SET_IEEE80211_DEV - set device for 802.11 hardware
+ *
+ * @hw: the &struct ieee80211_hw to set the device for
+ * @dev: the &struct device of this 802.11 device
+ */
+static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev)
+{
+	set_wiphy_dev(hw->wiphy, dev);
+}
+
+/**
+ * SET_IEEE80211_PERM_ADDR - set the permanenet MAC address for 802.11 hardware
+ *
+ * @hw: the &struct ieee80211_hw to set the MAC address for
+ * @addr: the address to set
+ */
+static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr)
+{
+	memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);
+}
+
+/**
+ * DOC: Hardware crypto acceleration
+ *
+ * mac80211 is capable of taking advantage of many hardware
+ * acceleration designs for encryption and decryption operations.
+ *
+ * The set_key() callback in the &struct ieee80211_ops for a given
+ * device is called to enable hardware acceleration of encryption and
+ * decryption. The callback takes an @address parameter that will be
+ * the broadcast address for default keys, the other station's hardware
+ * address for individual keys or the zero address for keys that will
+ * be used only for transmission.
+ * Multiple transmission keys with the same key index may be used when
+ * VLANs are configured for an access point.
+ *
+ * The @local_address parameter will always be set to our own address,
+ * this is only relevant if you support multiple local addresses.
+ *
+ * When transmitting, the TX control data will use the @hw_key_idx
+ * selected by the driver by modifying the &struct ieee80211_key_conf
+ * pointed to by the @key parameter to the set_key() function.
+ *
+ * The set_key() call for the %SET_KEY command should return 0 if
+ * the key is now in use, -%EOPNOTSUPP or -%ENOSPC if it couldn't be
+ * added; if you return 0 then hw_key_idx must be assigned to the
+ * hardware key index, you are free to use the full u8 range.
+ *
+ * When the cmd is %DISABLE_KEY then it must succeed.
+ *
+ * Note that it is permissible to not decrypt a frame even if a key
+ * for it has been uploaded to hardware, the stack will not make any
+ * decision based on whether a key has been uploaded or not but rather
+ * based on the receive flags.
+ *
+ * The &struct ieee80211_key_conf structure pointed to by the @key
+ * parameter is guaranteed to be valid until another call to set_key()
+ * removes it, but it can only be used as a cookie to differentiate
+ * keys.
+ */
+
+/**
+ * DOC: Frame filtering
+ *
+ * mac80211 requires to see many management frames for proper
+ * operation, and users may want to see many more frames when
+ * in monitor mode. However, for best CPU usage and power consumption,
+ * having as few frames as possible percolate through the stack is
+ * desirable. Hence, the hardware should filter as much as possible.
+ *
+ * To achieve this, mac80211 uses filter flags (see below) to tell
+ * the driver's configure_filter() function which frames should be
+ * passed to mac80211 and which should be filtered out.
+ *
+ * The configure_filter() callback is invoked with the parameters
+ * @mc_count and @mc_list for the combined multicast address list
+ * of all virtual interfaces, @changed_flags telling which flags
+ * were changed and @total_flags with the new flag states.
+ *
+ * If your device has no multicast address filters your driver will
+ * need to check both the %FIF_ALLMULTI flag and the @mc_count
+ * parameter to see whether multicast frames should be accepted
+ * or dropped.
+ *
+ * All unsupported flags in @total_flags must be cleared, i.e. you
+ * should clear all bits except those you honoured.
+ */
+
+/**
+ * enum ieee80211_filter_flags - hardware filter flags
+ *
+ * These flags determine what the filter in hardware should be
+ * programmed to let through and what should not be passed to the
+ * stack. It is always safe to pass more frames than requested,
+ * but this has negative impact on power consumption.
+ *
+ * @FIF_PROMISC_IN_BSS: promiscuous mode within your BSS,
+ *	think of the BSS as your network segment and then this corresponds
+ *	to the regular ethernet device promiscuous mode.
+ *
+ * @FIF_ALLMULTI: pass all multicast frames, this is used if requested
+ *	by the user or if the hardware is not capable of filtering by
+ *	multicast address.
+ *
+ * @FIF_FCSFAIL: pass frames with failed FCS (but you need to set the
+ *	%RX_FLAG_FAILED_FCS_CRC for them)
+ *
+ * @FIF_PLCPFAIL: pass frames with failed PLCP CRC (but you need to set
+ *	the %RX_FLAG_FAILED_PLCP_CRC for them
+ *
+ * @FIF_BCN_PRBRESP_PROMISC: This flag is set during scanning to indicate
+ *	to the hardware that it should not filter beacons or probe responses
+ *	by BSSID. Filtering them can greatly reduce the amount of processing
+ *	mac80211 needs to do and the amount of CPU wakeups, so you should
+ *	honour this flag if possible.
+ *
+ * @FIF_CONTROL: pass control frames, if PROMISC_IN_BSS is not set then
+ *	only those addressed to this station
+ *
+ * @FIF_OTHER_BSS: pass frames destined to other BSSes
+ */
+enum ieee80211_filter_flags {
+	FIF_PROMISC_IN_BSS	= 1<<0,
+	FIF_ALLMULTI		= 1<<1,
+	FIF_FCSFAIL		= 1<<2,
+	FIF_PLCPFAIL		= 1<<3,
+	FIF_BCN_PRBRESP_PROMISC	= 1<<4,
+	FIF_CONTROL		= 1<<5,
+	FIF_OTHER_BSS		= 1<<6,
+};
+
+/**
+ * enum ieee80211_erp_change_flags - erp change flags
+ *
+ * These flags are used with the erp_ie_changed() callback in
+ * &struct ieee80211_ops to indicate which parameter(s) changed.
+ * @IEEE80211_ERP_CHANGE_PROTECTION: protection changed
+ * @IEEE80211_ERP_CHANGE_PREAMBLE: barker preamble mode changed
+ */
+enum ieee80211_erp_change_flags {
+	IEEE80211_ERP_CHANGE_PROTECTION	= 1<<0,
+	IEEE80211_ERP_CHANGE_PREAMBLE	= 1<<1,
+};
+
+
+/**
+ * struct ieee80211_ops - callbacks from mac80211 to the driver
+ *
+ * This structure contains various callbacks that the driver may
+ * handle or, in some cases, must handle, for example to configure
+ * the hardware to a new channel or to transmit a frame.
+ *
+ * @tx: Handler that 802.11 module calls for each transmitted frame.
+ *	skb contains the buffer starting from the IEEE 802.11 header.
+ *	The low-level driver should send the frame out based on
+ *	configuration in the TX control data. Must be implemented and
+ *	atomic.
+ *
+ * @start: Called before the first netdevice attached to the hardware
+ *	is enabled. This should turn on the hardware and must turn on
+ *	frame reception (for possibly enabled monitor interfaces.)
+ *	Returns negative error codes, these may be seen in userspace,
+ *	or zero.
+ *	When the device is started it should not have a MAC address
+ *	to avoid acknowledging frames before a non-monitor device
+ *	is added.
+ *	Must be implemented.
+ *
+ * @stop: Called after last netdevice attached to the hardware
+ *	is disabled. This should turn off the hardware (at least
+ *	it must turn off frame reception.)
+ *	May be called right after add_interface if that rejects
+ *	an interface.
+ *	Must be implemented.
+ *
+ * @add_interface: Called when a netdevice attached to the hardware is
+ *	enabled. Because it is not called for monitor mode devices, @open
+ *	and @stop must be implemented.
+ *	The driver should perform any initialization it needs before
+ *	the device can be enabled. The initial configuration for the
+ *	interface is given in the conf parameter.
+ *	The callback may refuse to add an interface by returning a
+ *	negative error code (which will be seen in userspace.)
+ *	Must be implemented.
+ *
+ * @remove_interface: Notifies a driver that an interface is going down.
+ *	The @stop callback is called after this if it is the last interface
+ *	and no monitor interfaces are present.
+ *	When all interfaces are removed, the MAC address in the hardware
+ *	must be cleared so the device no longer acknowledges packets,
+ *	the mac_addr member of the conf structure is, however, set to the
+ *	MAC address of the device going away.
+ *	Hence, this callback must be implemented.
+ *
+ * @config: Handler for configuration requests. IEEE 802.11 code calls this
+ *	function to change hardware configuration, e.g., channel.
+ *
+ * @config_interface: Handler for configuration requests related to interfaces
+ *	(e.g. BSSID changes.)
+ *
+ * @configure_filter: Configure the device's RX filter.
+ *	See the section "Frame filtering" for more information.
+ *	This callback must be implemented and atomic.
+ *
+ * @set_tim: Set TIM bit. If the hardware/firmware takes care of beacon
+ *	generation (that is, %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is set)
+ *	mac80211 calls this function when a TIM bit must be set or cleared
+ *	for a given AID. Must be atomic.
+ *
+ * @set_key: See the section "Hardware crypto acceleration"
+ *	This callback can sleep, and is only called between add_interface
+ *	and remove_interface calls, i.e. while the interface with the
+ *	given local_address is enabled.
+ *
+ * @set_ieee8021x: Enable/disable IEEE 802.1X. This item requests wlan card
+ *	to pass unencrypted EAPOL-Key frames even when encryption is
+ *	configured. If the wlan card does not require such a configuration,
+ *	this function pointer can be set to NULL.
+ *
+ * @set_port_auth: Set port authorization state (IEEE 802.1X PAE) to be
+ *	authorized (@authorized=1) or unauthorized (=0). This function can be
+ *	used if the wlan hardware or low-level driver implements PAE.
+ *	mac80211 will filter frames based on authorization state in any case,
+ *	so this function pointer can be NULL if low-level driver does not
+ *	require event notification about port state changes.
+ *
+ * @hw_scan: Ask the hardware to service the scan request, no need to start
+ *	the scan state machine in stack.
+ *
+ * @get_stats: return low-level statistics
+ *
+ * @set_privacy_invoked: For devices that generate their own beacons and probe
+ *	response or association responses this updates the state of privacy_invoked
+ *	returns 0 for success or an error number.
+ *
+ * @get_sequence_counter: For devices that have internal sequence counters this
+ *	callback allows mac80211 to access the current value of a counter.
+ *	This callback seems not well-defined, tell us if you need it.
+ *
+ * @set_rts_threshold: Configuration of RTS threshold (if device needs it)
+ *
+ * @set_frag_threshold: Configuration of fragmentation threshold. Assign this if
+ *	the device does fragmentation by itself; if this method is assigned then
+ *	the stack will not do fragmentation.
+ *
+ * @set_retry_limit: Configuration of retry limits (if device needs it)
+ *
+ * @sta_notify: Notifies low level driver about addition or removal
+ *	of assocaited station or AP.
+ *
+ * @erp_ie_changed: Handle ERP IE change notifications. Must be atomic.
+ *
+ * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
+ *	bursting) for a hardware TX queue. The @queue parameter uses the
+ *	%IEEE80211_TX_QUEUE_* constants. Must be atomic.
+ *
+ * @get_tx_stats: Get statistics of the current TX queue status. This is used
+ *	to get number of currently queued packets (queue length), maximum queue
+ *	size (limit), and total number of packets sent using each TX queue
+ *	(count). This information is used for WMM to find out which TX
+ *	queues have room for more packets and by hostapd to provide
+ *	statistics about the current queueing state to external programs.
+ *
+ * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently,
+ *	this is only used for IBSS mode debugging and, as such, is not a
+ *	required function. Must be atomic.
+ *
+ * @reset_tsf: Reset the TSF timer and allow firmware/hardware to synchronize
+ *	with other STAs in the IBSS. This is only used in IBSS mode. This
+ *	function is optional if the firmware/hardware takes full care of
+ *	TSF synchronization.
+ *
+ * @beacon_update: Setup beacon data for IBSS beacons. Unlike access point,
+ *	IBSS uses a fixed beacon frame which is configured using this
+ *	function.
+ *	If the driver returns success (0) from this callback, it owns
+ *	the skb. That means the driver is responsible to kfree_skb() it.
+ *	The control structure is not dynamically allocated. That means the
+ *	driver does not own the pointer and if it needs it somewhere
+ *	outside of the context of this function, it must copy it
+ *	somewhere else.
+ *	This handler is required only for IBSS mode.
+ *
+ * @tx_last_beacon: Determine whether the last IBSS beacon was sent by us.
+ *	This is needed only for IBSS mode and the result of this function is
+ *	used to determine whether to reply to Probe Requests.
+ */
+struct ieee80211_ops {
+	int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb,
+		  struct ieee80211_tx_control *control);
+	int (*start)(struct ieee80211_hw *hw);
+	void (*stop)(struct ieee80211_hw *hw);
+	int (*add_interface)(struct ieee80211_hw *hw,
+			     struct ieee80211_if_init_conf *conf);
+	void (*remove_interface)(struct ieee80211_hw *hw,
+				 struct ieee80211_if_init_conf *conf);
+	int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
+	int (*config_interface)(struct ieee80211_hw *hw,
+				int if_id, struct ieee80211_if_conf *conf);
+	void (*configure_filter)(struct ieee80211_hw *hw,
+				 unsigned int changed_flags,
+				 unsigned int *total_flags,
+				 int mc_count, struct dev_addr_list *mc_list);
+	int (*set_tim)(struct ieee80211_hw *hw, int aid, int set);
+	int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+		       const u8 *local_address, const u8 *address,
+		       struct ieee80211_key_conf *key);
+	int (*set_ieee8021x)(struct ieee80211_hw *hw, int use_ieee8021x);
+	int (*set_port_auth)(struct ieee80211_hw *hw, u8 *addr,
+			     int authorized);
+	int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len);
+	int (*get_stats)(struct ieee80211_hw *hw,
+			 struct ieee80211_low_level_stats *stats);
+	int (*set_privacy_invoked)(struct ieee80211_hw *hw,
+				   int privacy_invoked);
+	int (*get_sequence_counter)(struct ieee80211_hw *hw,
+				    u8* addr, u8 keyidx, u8 txrx,
+				    u32* iv32, u16* iv16);
+	int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value);
+	int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
+	int (*set_retry_limit)(struct ieee80211_hw *hw,
+			       u32 short_retry, u32 long_retr);
+	void (*sta_notify)(struct ieee80211_hw *hw, int if_id,
+			enum sta_notify_cmd, const u8 *addr);
+	void (*erp_ie_changed)(struct ieee80211_hw *hw, u8 changes,
+			       int cts_protection, int preamble);
+	int (*conf_tx)(struct ieee80211_hw *hw, int queue,
+		       const struct ieee80211_tx_queue_params *params);
+	int (*get_tx_stats)(struct ieee80211_hw *hw,
+			    struct ieee80211_tx_queue_stats *stats);
+	u64 (*get_tsf)(struct ieee80211_hw *hw);
+	void (*reset_tsf)(struct ieee80211_hw *hw);
+	int (*beacon_update)(struct ieee80211_hw *hw,
+			     struct sk_buff *skb,
+			     struct ieee80211_tx_control *control);
+	int (*tx_last_beacon)(struct ieee80211_hw *hw);
+};
+
+/**
+ * ieee80211_alloc_hw -  Allocate a new hardware device
+ *
+ * This must be called once for each hardware device. The returned pointer
+ * must be used to refer to this device when calling other functions.
+ * mac80211 allocates a private data area for the driver pointed to by
+ * @priv in &struct ieee80211_hw, the size of this area is given as
+ * @priv_data_len.
+ *
+ * @priv_data_len: length of private data
+ * @ops: callbacks for this device
+ */
+struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
+					const struct ieee80211_ops *ops);
+
+/**
+ * ieee80211_register_hw - Register hardware device
+ *
+ * You must call this function before any other functions
+ * except ieee80211_register_hwmode.
+ *
+ * @hw: the device to register as returned by ieee80211_alloc_hw()
+ */
+int ieee80211_register_hw(struct ieee80211_hw *hw);
+
+#ifdef CONFIG_MAC80211_LEDS
+extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw);
+extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw);
+extern char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw);
+#endif
+/**
+ * ieee80211_get_tx_led_name - get name of TX LED
+ *
+ * mac80211 creates a transmit LED trigger for each wireless hardware
+ * that can be used to drive LEDs if your driver registers a LED device.
+ * This function returns the name (or %NULL if not configured for LEDs)
+ * of the trigger so you can automatically link the LED device.
+ *
+ * @hw: the hardware to get the LED trigger name for
+ */
+static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
+{
+#ifdef CONFIG_MAC80211_LEDS
+	return __ieee80211_get_tx_led_name(hw);
+#else
+	return NULL;
+#endif
+}
+
+/**
+ * ieee80211_get_rx_led_name - get name of RX LED
+ *
+ * mac80211 creates a receive LED trigger for each wireless hardware
+ * that can be used to drive LEDs if your driver registers a LED device.
+ * This function returns the name (or %NULL if not configured for LEDs)
+ * of the trigger so you can automatically link the LED device.
+ *
+ * @hw: the hardware to get the LED trigger name for
+ */
+static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
+{
+#ifdef CONFIG_MAC80211_LEDS
+	return __ieee80211_get_rx_led_name(hw);
+#else
+	return NULL;
+#endif
+}
+
+static inline char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
+{
+#ifdef CONFIG_MAC80211_LEDS
+	return __ieee80211_get_assoc_led_name(hw);
+#else
+	return NULL;
+#endif
+}
+
+
+/* Register a new hardware PHYMODE capability to the stack. */
+int ieee80211_register_hwmode(struct ieee80211_hw *hw,
+			      struct ieee80211_hw_mode *mode);
+
+/**
+ * ieee80211_unregister_hw - Unregister a hardware device
+ *
+ * This function instructs mac80211 to free allocated resources
+ * and unregister netdevices from the networking subsystem.
+ *
+ * @hw: the hardware to unregister
+ */
+void ieee80211_unregister_hw(struct ieee80211_hw *hw);
+
+/**
+ * ieee80211_free_hw - free hardware descriptor
+ *
+ * This function frees everything that was allocated, including the
+ * private data for the driver. You must call ieee80211_unregister_hw()
+ * before calling this function
+ *
+ * @hw: the hardware to free
+ */
+void ieee80211_free_hw(struct ieee80211_hw *hw);
+
+/* trick to avoid symbol clashes with the ieee80211 subsystem */
+void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
+		    struct ieee80211_rx_status *status);
+
+/**
+ * ieee80211_rx - receive frame
+ *
+ * Use this function to hand received frames to mac80211. The receive
+ * buffer in @skb must start with an IEEE 802.11 header or a radiotap
+ * header if %RX_FLAG_RADIOTAP is set in the @status flags.
+ *
+ * This function may not be called in IRQ context.
+ *
+ * @hw: the hardware this frame came in on
+ * @skb: the buffer to receive, owned by mac80211 after this call
+ * @status: status of this frame; the status pointer need not be valid
+ *	after this function returns
+ */
+static inline void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
+				struct ieee80211_rx_status *status)
+{
+	__ieee80211_rx(hw, skb, status);
+}
+
+/**
+ * ieee80211_rx_irqsafe - receive frame
+ *
+ * Like ieee80211_rx() but can be called in IRQ context
+ * (internally defers to a workqueue.)
+ *
+ * @hw: the hardware this frame came in on
+ * @skb: the buffer to receive, owned by mac80211 after this call
+ * @status: status of this frame; the status pointer need not be valid
+ *	after this function returns and is not freed by mac80211,
+ *	it is recommended that it points to a stack area
+ */
+void ieee80211_rx_irqsafe(struct ieee80211_hw *hw,
+			  struct sk_buff *skb,
+			  struct ieee80211_rx_status *status);
+
+/**
+ * ieee80211_tx_status - transmit status callback
+ *
+ * Call this function for all transmitted frames after they have been
+ * transmitted. It is permissible to not call this function for
+ * multicast frames but this can affect statistics.
+ *
+ * @hw: the hardware the frame was transmitted by
+ * @skb: the frame that was transmitted, owned by mac80211 after this call
+ * @status: status information for this frame; the status pointer need not
+ *	be valid after this function returns and is not freed by mac80211,
+ *	it is recommended that it points to a stack area
+ */
+void ieee80211_tx_status(struct ieee80211_hw *hw,
+			 struct sk_buff *skb,
+			 struct ieee80211_tx_status *status);
+void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
+				 struct sk_buff *skb,
+				 struct ieee80211_tx_status *status);
+
+/**
+ * ieee80211_beacon_get - beacon generation function
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @control: will be filled with information needed to send this beacon.
+ *
+ * If the beacon frames are generated by the host system (i.e., not in
+ * hardware/firmware), the low-level driver uses this function to receive
+ * the next beacon frame from the 802.11 code. The low-level is responsible
+ * for calling this function before beacon data is needed (e.g., based on
+ * hardware interrupt). Returned skb is used only once and low-level driver
+ * is responsible of freeing it.
+ */
+struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
+				     int if_id,
+				     struct ieee80211_tx_control *control);
+
+/**
+ * ieee80211_rts_get - RTS frame generation function
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame: pointer to the frame that is going to be protected by the RTS.
+ * @frame_len: the frame length (in octets).
+ * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @rts: The buffer where to store the RTS frame.
+ *
+ * If the RTS frames are generated by the host system (i.e., not in
+ * hardware/firmware), the low-level driver uses this function to receive
+ * the next RTS frame from the 802.11 code. The low-level is responsible
+ * for calling this function before and RTS frame is needed.
+ */
+void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id,
+		       const void *frame, size_t frame_len,
+		       const struct ieee80211_tx_control *frame_txctl,
+		       struct ieee80211_rts *rts);
+
+/**
+ * ieee80211_rts_duration - Get the duration field for an RTS frame
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame_len: the length of the frame that is going to be protected by the RTS.
+ * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ *
+ * If the RTS is generated in firmware, but the host system must provide
+ * the duration field, the low-level driver uses this function to receive
+ * the duration field value in little-endian byteorder.
+ */
+__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id,
+			      size_t frame_len,
+			      const struct ieee80211_tx_control *frame_txctl);
+
+/**
+ * ieee80211_ctstoself_get - CTS-to-self frame generation function
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame: pointer to the frame that is going to be protected by the CTS-to-self.
+ * @frame_len: the frame length (in octets).
+ * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @cts: The buffer where to store the CTS-to-self frame.
+ *
+ * If the CTS-to-self frames are generated by the host system (i.e., not in
+ * hardware/firmware), the low-level driver uses this function to receive
+ * the next CTS-to-self frame from the 802.11 code. The low-level is responsible
+ * for calling this function before and CTS-to-self frame is needed.
+ */
+void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id,
+			     const void *frame, size_t frame_len,
+			     const struct ieee80211_tx_control *frame_txctl,
+			     struct ieee80211_cts *cts);
+
+/**
+ * ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame_len: the length of the frame that is going to be protected by the CTS-to-self.
+ * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ *
+ * If the CTS-to-self is generated in firmware, but the host system must provide
+ * the duration field, the low-level driver uses this function to receive
+ * the duration field value in little-endian byteorder.
+ */
+__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id,
+				    size_t frame_len,
+				    const struct ieee80211_tx_control *frame_txctl);
+
+/**
+ * ieee80211_generic_frame_duration - Calculate the duration field for a frame
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame_len: the length of the frame.
+ * @rate: the rate (in 100kbps) at which the frame is going to be transmitted.
+ *
+ * Calculate the duration field of some generic frame, given its
+ * length and transmission rate (in 100kbps).
+ */
+__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, int if_id,
+					size_t frame_len,
+					int rate);
+
+/**
+ * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @control: will be filled with information needed to send returned frame.
+ *
+ * Function for accessing buffered broadcast and multicast frames. If
+ * hardware/firmware does not implement buffering of broadcast/multicast
+ * frames when power saving is used, 802.11 code buffers them in the host
+ * memory. The low-level driver uses this function to fetch next buffered
+ * frame. In most cases, this is used when generating beacon frame. This
+ * function returns a pointer to the next buffered skb or NULL if no more
+ * buffered frames are available.
+ *
+ * Note: buffered frames are returned only after DTIM beacon frame was
+ * generated with ieee80211_beacon_get() and the low-level driver must thus
+ * call ieee80211_beacon_get() first. ieee80211_get_buffered_bc() returns
+ * NULL if the previous generated beacon was not DTIM, so the low-level driver
+ * does not need to check for DTIM beacons separately and should be able to
+ * use common code for all beacons.
+ */
+struct sk_buff *
+ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
+			  struct ieee80211_tx_control *control);
+
+/**
+ * ieee80211_get_hdrlen_from_skb - get header length from data
+ *
+ * Given an skb with a raw 802.11 header at the data pointer this function
+ * returns the 802.11 header length in bytes (not including encryption
+ * headers). If the data in the sk_buff is too short to contain a valid 802.11
+ * header the function returns 0.
+ *
+ * @skb: the frame
+ */
+int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
+
+/**
+ * ieee80211_get_hdrlen - get header length from frame control
+ *
+ * This function returns the 802.11 header length in bytes (not including
+ * encryption headers.)
+ *
+ * @fc: the frame control field (in CPU endianness)
+ */
+int ieee80211_get_hdrlen(u16 fc);
+
+/**
+ * ieee80211_wake_queue - wake specific queue
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @queue: queue number (counted from zero).
+ *
+ * Drivers should use this function instead of netif_wake_queue.
+ */
+void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue);
+
+/**
+ * ieee80211_stop_queue - stop specific queue
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @queue: queue number (counted from zero).
+ *
+ * Drivers should use this function instead of netif_stop_queue.
+ */
+void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue);
+
+/**
+ * ieee80211_start_queues - start all queues
+ * @hw: pointer to as obtained from ieee80211_alloc_hw().
+ *
+ * Drivers should use this function instead of netif_start_queue.
+ */
+void ieee80211_start_queues(struct ieee80211_hw *hw);
+
+/**
+ * ieee80211_stop_queues - stop all queues
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ *
+ * Drivers should use this function instead of netif_stop_queue.
+ */
+void ieee80211_stop_queues(struct ieee80211_hw *hw);
+
+/**
+ * ieee80211_wake_queues - wake all queues
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ *
+ * Drivers should use this function instead of netif_wake_queue.
+ */
+void ieee80211_wake_queues(struct ieee80211_hw *hw);
+
+/**
+ * ieee80211_scan_completed - completed hardware scan
+ *
+ * When hardware scan offload is used (i.e. the hw_scan() callback is
+ * assigned) this function needs to be called by the driver to notify
+ * mac80211 that the scan finished.
+ *
+ * @hw: the hardware that finished the scan
+ */
+void ieee80211_scan_completed(struct ieee80211_hw *hw);
+
+#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
+#define MAC_ARG(x) ((u8*)(x))[0], ((u8*)(x))[1], ((u8*)(x))[2], \
+		   ((u8*)(x))[3], ((u8*)(x))[4], ((u8*)(x))[5]
+
+#endif /* MAC80211_H */