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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
<book id="mac80211-developers-guide">
<bookinfo>
<title>The mac80211 subsystem for kernel developers</title>
<authorgroup>
<author>
<firstname>Johannes</firstname>
<surname>Berg</surname>
<affiliation>
<address><email>johannes@sipsolutions.net</email></address>
</affiliation>
</author>
</authorgroup>
<copyright>
<year>2007-2009</year>
<holder>Johannes Berg</holder>
</copyright>
<legalnotice>
<para>
This documentation 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.
</para>
<para>
This documentation 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.
</para>
<para>
You should have received a copy of the GNU General Public
License along with this documentation; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
MA 02111-1307 USA
</para>
<para>
For more details see the file COPYING in the source
distribution of Linux.
</para>
</legalnotice>
<abstract>
!Pinclude/net/mac80211.h Introduction
!Pinclude/net/mac80211.h Warning
</abstract>
</bookinfo>
<toc></toc>
<!--
Generally, this document shall be ordered by increasing complexity.
It is important to note that readers should be able to read only
the first few sections to get a working driver and only advanced
usage should require reading the full document.
-->
<part>
<title>The basic mac80211 driver interface</title>
<partintro>
<para>
You should read and understand the information contained
within this part of the book while implementing a driver.
In some chapters, advanced usage is noted, that may be
skipped at first.
</para>
<para>
This part of the book only covers station and monitor mode
functionality, additional information required to implement
the other modes is covered in the second part of the book.
</para>
</partintro>
<chapter id="basics">
<title>Basic hardware handling</title>
<para>TBD</para>
<para>
This chapter shall contain information on getting a hw
struct allocated and registered with mac80211.
</para>
<para>
Since it is required to allocate rates/modes before registering
a hw struct, this chapter shall also contain information on setting
up the rate/mode structs.
</para>
<para>
Additionally, some discussion about the callbacks and
the general programming model should be in here, including
the definition of ieee80211_ops which will be referred to
a lot.
</para>
<para>
Finally, a discussion of hardware capabilities should be done
with references to other parts of the book.
</para>
<!-- intentionally multiple !F lines to get proper order -->
!Finclude/net/mac80211.h ieee80211_hw
!Finclude/net/mac80211.h ieee80211_hw_flags
!Finclude/net/mac80211.h SET_IEEE80211_DEV
!Finclude/net/mac80211.h SET_IEEE80211_PERM_ADDR
!Finclude/net/mac80211.h ieee80211_ops
!Finclude/net/mac80211.h ieee80211_alloc_hw
!Finclude/net/mac80211.h ieee80211_register_hw
!Finclude/net/mac80211.h ieee80211_get_tx_led_name
!Finclude/net/mac80211.h ieee80211_get_rx_led_name
!Finclude/net/mac80211.h ieee80211_get_assoc_led_name
!Finclude/net/mac80211.h ieee80211_get_radio_led_name
!Finclude/net/mac80211.h ieee80211_unregister_hw
!Finclude/net/mac80211.h ieee80211_free_hw
</chapter>
<chapter id="phy-handling">
<title>PHY configuration</title>
<para>TBD</para>
<para>
This chapter should describe PHY handling including
start/stop callbacks and the various structures used.
</para>
!Finclude/net/mac80211.h ieee80211_conf
!Finclude/net/mac80211.h ieee80211_conf_flags
</chapter>
<chapter id="iface-handling">
<title>Virtual interfaces</title>
<para>TBD</para>
<para>
This chapter should describe virtual interface basics
that are relevant to the driver (VLANs, MGMT etc are not.)
It should explain the use of the add_iface/remove_iface
callbacks as well as the interface configuration callbacks.
</para>
<para>Things related to AP mode should be discussed there.</para>
<para>
Things related to supporting multiple interfaces should be
in the appropriate chapter, a BIG FAT note should be here about
this though and the recommendation to allow only a single
interface in STA mode at first!
</para>
!Finclude/net/mac80211.h ieee80211_if_init_conf
!Finclude/net/mac80211.h ieee80211_if_conf
</chapter>
<chapter id="rx-tx">
<title>Receive and transmit processing</title>
<sect1>
<title>what should be here</title>
<para>TBD</para>
<para>
This should describe the receive and transmit
paths in mac80211/the drivers as well as
transmit status handling.
</para>
</sect1>
<sect1>
<title>Frame format</title>
!Pinclude/net/mac80211.h Frame format
</sect1>
<sect1>
<title>Packet alignment</title>
!Pnet/mac80211/rx.c Packet alignment
</sect1>
<sect1>
<title>Calling into mac80211 from interrupts</title>
!Pinclude/net/mac80211.h Calling mac80211 from interrupts
</sect1>
<sect1>
<title>functions/definitions</title>
!Finclude/net/mac80211.h ieee80211_rx_status
!Finclude/net/mac80211.h mac80211_rx_flags
!Finclude/net/mac80211.h ieee80211_tx_info
!Finclude/net/mac80211.h ieee80211_rx
!Finclude/net/mac80211.h ieee80211_rx_irqsafe
!Finclude/net/mac80211.h ieee80211_tx_status
!Finclude/net/mac80211.h ieee80211_tx_status_irqsafe
!Finclude/net/mac80211.h ieee80211_rts_get
!Finclude/net/mac80211.h ieee80211_rts_duration
!Finclude/net/mac80211.h ieee80211_ctstoself_get
!Finclude/net/mac80211.h ieee80211_ctstoself_duration
!Finclude/net/mac80211.h ieee80211_generic_frame_duration
!Finclude/net/mac80211.h ieee80211_get_hdrlen_from_skb
!Finclude/net/mac80211.h ieee80211_hdrlen
!Finclude/net/mac80211.h ieee80211_wake_queue
!Finclude/net/mac80211.h ieee80211_stop_queue
!Finclude/net/mac80211.h ieee80211_wake_queues
!Finclude/net/mac80211.h ieee80211_stop_queues
</sect1>
</chapter>
<chapter id="filters">
<title>Frame filtering</title>
!Pinclude/net/mac80211.h Frame filtering
!Finclude/net/mac80211.h ieee80211_filter_flags
</chapter>
</part>
<part id="advanced">
<title>Advanced driver interface</title>
<partintro>
<para>
Information contained within this part of the book is
of interest only for advanced interaction of mac80211
with drivers to exploit more hardware capabilities and
improve performance.
</para>
</partintro>
<chapter id="hardware-crypto-offload">
<title>Hardware crypto acceleration</title>
!Pinclude/net/mac80211.h Hardware crypto acceleration
<!-- intentionally multiple !F lines to get proper order -->
!Finclude/net/mac80211.h set_key_cmd
!Finclude/net/mac80211.h ieee80211_key_conf
!Finclude/net/mac80211.h ieee80211_key_alg
!Finclude/net/mac80211.h ieee80211_key_flags
</chapter>
<chapter id="powersave">
<title>Powersave support</title>
!Pinclude/net/mac80211.h Powersave support
</chapter>
<chapter id="qos">
<title>Multiple queues and QoS support</title>
<para>TBD</para>
!Finclude/net/mac80211.h ieee80211_tx_queue_params
!Finclude/net/mac80211.h ieee80211_tx_queue_stats
</chapter>
<chapter id="AP">
<title>Access point mode support</title>
<para>TBD</para>
<para>Some parts of the if_conf should be discussed here instead</para>
<para>
Insert notes about VLAN interfaces with hw crypto here or
in the hw crypto chapter.
</para>
!Finclude/net/mac80211.h ieee80211_get_buffered_bc
!Finclude/net/mac80211.h ieee80211_beacon_get
</chapter>
<chapter id="multi-iface">
<title>Supporting multiple virtual interfaces</title>
<para>TBD</para>
<para>
Note: WDS with identical MAC address should almost always be OK
</para>
<para>
Insert notes about having multiple virtual interfaces with
different MAC addresses here, note which configurations are
supported by mac80211, add notes about supporting hw crypto
with it.
</para>
</chapter>
<chapter id="hardware-scan-offload">
<title>Hardware scan offload</title>
<para>TBD</para>
!Finclude/net/mac80211.h ieee80211_scan_completed
</chapter>
</part>
<part id="rate-control">
<title>Rate control interface</title>
<partintro>
<para>TBD</para>
<para>
This part of the book describes the rate control algorithm
interface and how it relates to mac80211 and drivers.
</para>
</partintro>
<chapter id="dummy">
<title>dummy chapter</title>
<para>TBD</para>
</chapter>
</part>
<part id="internal">
<title>Internals</title>
<partintro>
<para>TBD</para>
<para>
This part of the book describes mac80211 internals.
</para>
</partintro>
<chapter id="key-handling">
<title>Key handling</title>
<sect1>
<title>Key handling basics</title>
!Pnet/mac80211/key.c Key handling basics
</sect1>
<sect1>
<title>MORE TBD</title>
<para>TBD</para>
</sect1>
</chapter>
<chapter id="rx-processing">
<title>Receive processing</title>
<para>TBD</para>
</chapter>
<chapter id="tx-processing">
<title>Transmit processing</title>
<para>TBD</para>
</chapter>
<chapter id="sta-info">
<title>Station info handling</title>
<sect1>
<title>Programming information</title>
!Fnet/mac80211/sta_info.h sta_info
!Fnet/mac80211/sta_info.h ieee80211_sta_info_flags
</sect1>
<sect1>
<title>STA information lifetime rules</title>
!Pnet/mac80211/sta_info.c STA information lifetime rules
</sect1>
</chapter>
<chapter id="synchronisation">
<title>Synchronisation</title>
<para>TBD</para>
<para>Locking, lots of RCU</para>
</chapter>
</part>
</book>
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