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514 lines
13 KiB
514 lines
13 KiB
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
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<book id="LinuxKernelAPI">
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<bookinfo>
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<title>The Linux Kernel API</title>
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<legalnotice>
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<para>
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This documentation is free software; you can redistribute
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it and/or modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later
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version.
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</para>
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<para>
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This program is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied
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warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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</para>
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<para>
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You should have received a copy of the GNU General Public
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License along with this program; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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MA 02111-1307 USA
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</para>
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<para>
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For more details see the file COPYING in the source
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distribution of Linux.
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</para>
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</legalnotice>
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</bookinfo>
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|
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<toc></toc>
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<chapter id="Basics">
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<title>Driver Basics</title>
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<sect1><title>Driver Entry and Exit points</title>
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!Iinclude/linux/init.h
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</sect1>
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|
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<sect1><title>Atomic and pointer manipulation</title>
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!Iinclude/asm-i386/atomic.h
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!Iinclude/asm-i386/unaligned.h
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</sect1>
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|
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<sect1><title>Delaying, scheduling, and timer routines</title>
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!Iinclude/linux/sched.h
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!Ekernel/sched.c
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!Ekernel/timer.c
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</sect1>
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<sect1><title>Internal Functions</title>
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!Ikernel/exit.c
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!Ikernel/signal.c
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</sect1>
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|
|
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<sect1><title>Kernel objects manipulation</title>
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<!--
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X!Iinclude/linux/kobject.h
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-->
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!Elib/kobject.c
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</sect1>
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|
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<sect1><title>Kernel utility functions</title>
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!Iinclude/linux/kernel.h
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<!-- This needs to clean up to make kernel-doc happy
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X!Ekernel/printk.c
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-->
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!Ekernel/panic.c
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!Ekernel/sys.c
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!Ekernel/rcupdate.c
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</sect1>
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|
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</chapter>
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|
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<chapter id="adt">
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<title>Data Types</title>
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<sect1><title>Doubly Linked Lists</title>
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!Iinclude/linux/list.h
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</sect1>
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</chapter>
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|
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<chapter id="libc">
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<title>Basic C Library Functions</title>
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<para>
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When writing drivers, you cannot in general use routines which are
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from the C Library. Some of the functions have been found generally
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useful and they are listed below. The behaviour of these functions
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may vary slightly from those defined by ANSI, and these deviations
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are noted in the text.
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</para>
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|
|
|
<sect1><title>String Conversions</title>
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|
!Ilib/vsprintf.c
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!Elib/vsprintf.c
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|
</sect1>
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|
<sect1><title>String Manipulation</title>
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|
<!-- All functions are exported at now
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X!Ilib/string.c
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-->
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|
!Elib/string.c
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</sect1>
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|
<sect1><title>Bit Operations</title>
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!Iinclude/asm-i386/bitops.h
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</sect1>
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</chapter>
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|
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<chapter id="mm">
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<title>Memory Management in Linux</title>
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|
<sect1><title>The Slab Cache</title>
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|
!Emm/slab.c
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|
</sect1>
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|
<sect1><title>User Space Memory Access</title>
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|
!Iinclude/asm-i386/uaccess.h
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|
!Iarch/i386/lib/usercopy.c
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|
</sect1>
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|
<sect1><title>More Memory Management Functions</title>
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|
!Iinclude/linux/rmap.h
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!Emm/readahead.c
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!Emm/filemap.c
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!Emm/memory.c
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!Emm/vmalloc.c
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|
!Emm/mempool.c
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!Emm/page-writeback.c
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!Emm/truncate.c
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</sect1>
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</chapter>
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|
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<chapter id="ipc">
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<title>Kernel IPC facilities</title>
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|
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<sect1><title>IPC utilities</title>
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!Iipc/util.c
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</sect1>
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</chapter>
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|
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<chapter id="kfifo">
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<title>FIFO Buffer</title>
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<sect1><title>kfifo interface</title>
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!Iinclude/linux/kfifo.h
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!Ekernel/kfifo.c
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</sect1>
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|
</chapter>
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|
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<chapter id="proc">
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<title>The proc filesystem</title>
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|
<sect1><title>sysctl interface</title>
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!Ekernel/sysctl.c
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</sect1>
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<sect1><title>proc filesystem interface</title>
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|
!Ifs/proc/base.c
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</sect1>
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</chapter>
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<chapter id="debugfs">
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<title>The debugfs filesystem</title>
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|
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<sect1><title>debugfs interface</title>
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|
!Efs/debugfs/inode.c
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|
!Efs/debugfs/file.c
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</sect1>
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</chapter>
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|
|
<chapter id="vfs">
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<title>The Linux VFS</title>
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|
<sect1><title>The Filesystem types</title>
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|
!Iinclude/linux/fs.h
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|
!Einclude/linux/fs.h
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|
</sect1>
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|
<sect1><title>The Directory Cache</title>
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|
!Efs/dcache.c
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!Iinclude/linux/dcache.h
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</sect1>
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|
<sect1><title>Inode Handling</title>
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|
!Efs/inode.c
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|
!Efs/bad_inode.c
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</sect1>
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|
<sect1><title>Registration and Superblocks</title>
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|
!Efs/super.c
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</sect1>
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|
<sect1><title>File Locks</title>
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!Efs/locks.c
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!Ifs/locks.c
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</sect1>
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<sect1><title>Other Functions</title>
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!Efs/mpage.c
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!Efs/namei.c
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!Efs/buffer.c
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!Efs/bio.c
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!Efs/seq_file.c
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!Efs/filesystems.c
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!Efs/fs-writeback.c
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!Efs/block_dev.c
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</sect1>
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</chapter>
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|
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<chapter id="netcore">
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<title>Linux Networking</title>
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<sect1><title>Networking Base Types</title>
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!Iinclude/linux/net.h
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</sect1>
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<sect1><title>Socket Buffer Functions</title>
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!Iinclude/linux/skbuff.h
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!Iinclude/net/sock.h
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!Enet/socket.c
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!Enet/core/skbuff.c
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!Enet/core/sock.c
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!Enet/core/datagram.c
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!Enet/core/stream.c
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</sect1>
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<sect1><title>Socket Filter</title>
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!Enet/core/filter.c
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</sect1>
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<sect1><title>Generic Network Statistics</title>
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|
!Iinclude/linux/gen_stats.h
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!Enet/core/gen_stats.c
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!Enet/core/gen_estimator.c
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</sect1>
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<sect1><title>SUN RPC subsystem</title>
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<!-- The !D functionality is not perfect, garbage has to be protected by comments
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!Dnet/sunrpc/sunrpc_syms.c
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-->
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!Enet/sunrpc/xdr.c
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|
!Enet/sunrpc/svcsock.c
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!Enet/sunrpc/sched.c
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</sect1>
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</chapter>
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|
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<chapter id="netdev">
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<title>Network device support</title>
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<sect1><title>Driver Support</title>
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!Enet/core/dev.c
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</sect1>
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<sect1><title>8390 Based Network Cards</title>
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!Edrivers/net/8390.c
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</sect1>
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<sect1><title>Synchronous PPP</title>
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!Edrivers/net/wan/syncppp.c
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</sect1>
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</chapter>
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<chapter id="modload">
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<title>Module Support</title>
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<sect1><title>Module Loading</title>
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!Ekernel/kmod.c
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</sect1>
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<sect1><title>Inter Module support</title>
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<para>
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Refer to the file kernel/module.c for more information.
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</para>
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<!-- FIXME: Removed for now since no structured comments in source
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X!Ekernel/module.c
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-->
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</sect1>
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</chapter>
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|
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<chapter id="hardware">
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<title>Hardware Interfaces</title>
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<sect1><title>Interrupt Handling</title>
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!Iarch/i386/kernel/irq.c
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</sect1>
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|
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<sect1><title>Resources Management</title>
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!Ekernel/resource.c
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</sect1>
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<sect1><title>MTRR Handling</title>
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!Earch/i386/kernel/cpu/mtrr/main.c
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</sect1>
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<sect1><title>PCI Support Library</title>
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!Edrivers/pci/pci.c
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!Edrivers/pci/pci-driver.c
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!Edrivers/pci/remove.c
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!Edrivers/pci/pci-acpi.c
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<!-- kerneldoc does not understand to __devinit
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X!Edrivers/pci/search.c
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-->
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!Edrivers/pci/msi.c
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!Edrivers/pci/bus.c
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!Edrivers/pci/hotplug.c
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!Edrivers/pci/probe.c
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!Edrivers/pci/rom.c
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</sect1>
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<sect1><title>PCI Hotplug Support Library</title>
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!Edrivers/pci/hotplug/pci_hotplug_core.c
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</sect1>
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<sect1><title>MCA Architecture</title>
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<sect2><title>MCA Device Functions</title>
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<para>
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Refer to the file arch/i386/kernel/mca.c for more information.
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</para>
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<!-- FIXME: Removed for now since no structured comments in source
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X!Earch/i386/kernel/mca.c
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-->
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</sect2>
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<sect2><title>MCA Bus DMA</title>
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!Iinclude/asm-i386/mca_dma.h
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</sect2>
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</sect1>
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</chapter>
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<chapter id="devfs">
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<title>The Device File System</title>
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!Efs/devfs/base.c
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</chapter>
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<chapter id="sysfs">
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<title>The Filesystem for Exporting Kernel Objects</title>
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!Efs/sysfs/file.c
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!Efs/sysfs/dir.c
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!Efs/sysfs/symlink.c
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!Efs/sysfs/bin.c
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</chapter>
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<chapter id="security">
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|
<title>Security Framework</title>
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|
!Esecurity/security.c
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|
</chapter>
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<chapter id="pmfuncs">
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<title>Power Management</title>
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!Ekernel/power/pm.c
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</chapter>
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<chapter id="devdrivers">
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<title>Device drivers infrastructure</title>
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<sect1><title>Device Drivers Base</title>
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|
<!--
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X!Iinclude/linux/device.h
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-->
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!Edrivers/base/driver.c
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!Edrivers/base/class_simple.c
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!Edrivers/base/core.c
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!Edrivers/base/firmware_class.c
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!Edrivers/base/transport_class.c
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!Edrivers/base/dmapool.c
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|
<!-- Cannot be included, because
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attribute_container_add_class_device_adapter
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and attribute_container_classdev_to_container
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exceed allowed 44 characters maximum
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X!Edrivers/base/attribute_container.c
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-->
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!Edrivers/base/sys.c
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<!--
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X!Edrivers/base/interface.c
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-->
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!Edrivers/base/platform.c
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!Edrivers/base/bus.c
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</sect1>
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<sect1><title>Device Drivers Power Management</title>
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!Edrivers/base/power/main.c
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!Edrivers/base/power/resume.c
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!Edrivers/base/power/suspend.c
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</sect1>
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<sect1><title>Device Drivers ACPI Support</title>
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<!-- Internal functions only
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X!Edrivers/acpi/sleep/main.c
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X!Edrivers/acpi/sleep/wakeup.c
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X!Edrivers/acpi/motherboard.c
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X!Edrivers/acpi/bus.c
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-->
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!Edrivers/acpi/scan.c
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<!-- No correct structured comments
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X!Edrivers/acpi/pci_bind.c
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-->
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</sect1>
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<sect1><title>Device drivers PnP support</title>
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!Edrivers/pnp/core.c
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<!-- No correct structured comments
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X!Edrivers/pnp/system.c
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-->
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!Edrivers/pnp/card.c
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!Edrivers/pnp/driver.c
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!Edrivers/pnp/manager.c
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!Edrivers/pnp/support.c
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</sect1>
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</chapter>
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<chapter id="blkdev">
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|
<title>Block Devices</title>
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!Edrivers/block/ll_rw_blk.c
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</chapter>
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<chapter id="miscdev">
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<title>Miscellaneous Devices</title>
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!Edrivers/char/misc.c
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</chapter>
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<chapter id="viddev">
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<title>Video4Linux</title>
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!Edrivers/media/video/videodev.c
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</chapter>
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<chapter id="snddev">
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<title>Sound Devices</title>
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!Iinclude/sound/core.h
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!Esound/sound_core.c
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!Iinclude/sound/pcm.h
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!Esound/core/pcm.c
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!Esound/core/device.c
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!Esound/core/info.c
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!Esound/core/rawmidi.c
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!Esound/core/sound.c
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!Esound/core/memory.c
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!Esound/core/pcm_memory.c
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!Esound/core/init.c
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!Esound/core/isadma.c
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!Esound/core/control.c
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!Esound/core/pcm_lib.c
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!Esound/core/hwdep.c
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!Esound/core/pcm_native.c
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!Esound/core/memalloc.c
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<!-- FIXME: Removed for now since no structured comments in source
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X!Isound/sound_firmware.c
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-->
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</chapter>
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|
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<chapter id="uart16x50">
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|
<title>16x50 UART Driver</title>
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!Iinclude/linux/serial_core.h
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|
!Edrivers/serial/serial_core.c
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|
!Edrivers/serial/8250.c
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|
</chapter>
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|
|
<chapter id="z85230">
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|
<title>Z85230 Support Library</title>
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|
!Edrivers/net/wan/z85230.c
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|
</chapter>
|
|
|
|
<chapter id="fbdev">
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|
<title>Frame Buffer Library</title>
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|
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<para>
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The frame buffer drivers depend heavily on four data structures.
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These structures are declared in include/linux/fb.h. They are
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fb_info, fb_var_screeninfo, fb_fix_screeninfo and fb_monospecs.
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The last three can be made available to and from userland.
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</para>
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<para>
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fb_info defines the current state of a particular video card.
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Inside fb_info, there exists a fb_ops structure which is a
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collection of needed functions to make fbdev and fbcon work.
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fb_info is only visible to the kernel.
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</para>
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<para>
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fb_var_screeninfo is used to describe the features of a video card
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|
that are user defined. With fb_var_screeninfo, things such as
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depth and the resolution may be defined.
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|
</para>
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<para>
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The next structure is fb_fix_screeninfo. This defines the
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properties of a card that are created when a mode is set and can't
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|
be changed otherwise. A good example of this is the start of the
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frame buffer memory. This "locks" the address of the frame buffer
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memory, so that it cannot be changed or moved.
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</para>
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|
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<para>
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The last structure is fb_monospecs. In the old API, there was
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|
little importance for fb_monospecs. This allowed for forbidden things
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|
such as setting a mode of 800x600 on a fix frequency monitor. With
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the new API, fb_monospecs prevents such things, and if used
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|
correctly, can prevent a monitor from being cooked. fb_monospecs
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|
will not be useful until kernels 2.5.x.
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|
</para>
|
|
|
|
<sect1><title>Frame Buffer Memory</title>
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|
!Edrivers/video/fbmem.c
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|
</sect1>
|
|
<!--
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|
<sect1><title>Frame Buffer Console</title>
|
|
X!Edrivers/video/console/fbcon.c
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|
</sect1>
|
|
-->
|
|
<sect1><title>Frame Buffer Colormap</title>
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|
!Edrivers/video/fbcmap.c
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|
</sect1>
|
|
<!-- FIXME:
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|
drivers/video/fbgen.c has no docs, which stuffs up the sgml. Comment
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|
out until somebody adds docs. KAO
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|
<sect1><title>Frame Buffer Generic Functions</title>
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|
X!Idrivers/video/fbgen.c
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|
</sect1>
|
|
KAO -->
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|
<sect1><title>Frame Buffer Video Mode Database</title>
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|
!Idrivers/video/modedb.c
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|
!Edrivers/video/modedb.c
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</sect1>
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|
<sect1><title>Frame Buffer Macintosh Video Mode Database</title>
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|
!Idrivers/video/macmodes.c
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|
</sect1>
|
|
<sect1><title>Frame Buffer Fonts</title>
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|
<para>
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|
Refer to the file drivers/video/console/fonts.c for more information.
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|
</para>
|
|
<!-- FIXME: Removed for now since no structured comments in source
|
|
X!Idrivers/video/console/fonts.c
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|
-->
|
|
</sect1>
|
|
</chapter>
|
|
</book>
|
|
|