Input: add to kernel-api docbook
[linux-2.6.git] / Documentation / DocBook / kernel-api.tmpl
1 <?xml version="1.0" encoding="UTF-8"?>
2 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
3         "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
4
5 <book id="LinuxKernelAPI">
6  <bookinfo>
7   <title>The Linux Kernel API</title>
8   
9   <legalnotice>
10    <para>
11      This documentation is free software; you can redistribute
12      it and/or modify it under the terms of the GNU General Public
13      License as published by the Free Software Foundation; either
14      version 2 of the License, or (at your option) any later
15      version.
16    </para>
17       
18    <para>
19      This program is distributed in the hope that it will be
20      useful, but WITHOUT ANY WARRANTY; without even the implied
21      warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
22      See the GNU General Public License for more details.
23    </para>
24       
25    <para>
26      You should have received a copy of the GNU General Public
27      License along with this program; if not, write to the Free
28      Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29      MA 02111-1307 USA
30    </para>
31       
32    <para>
33      For more details see the file COPYING in the source
34      distribution of Linux.
35    </para>
36   </legalnotice>
37  </bookinfo>
38
39 <toc></toc>
40
41   <chapter id="Basics">
42      <title>Driver Basics</title>
43      <sect1><title>Driver Entry and Exit points</title>
44 !Iinclude/linux/init.h
45      </sect1>
46
47      <sect1><title>Atomic and pointer manipulation</title>
48 !Iinclude/asm-i386/atomic.h
49 !Iinclude/asm-i386/unaligned.h
50      </sect1>
51
52      <sect1><title>Delaying, scheduling, and timer routines</title>
53 !Iinclude/linux/sched.h
54 !Ekernel/sched.c
55 !Ekernel/timer.c
56      </sect1>
57      <sect1><title>High-resolution timers</title>
58 !Iinclude/linux/ktime.h
59 !Iinclude/linux/hrtimer.h
60 !Ekernel/hrtimer.c
61      </sect1>
62      <sect1><title>Workqueues and Kevents</title>
63 !Ekernel/workqueue.c
64      </sect1>
65      <sect1><title>Internal Functions</title>
66 !Ikernel/exit.c
67 !Ikernel/signal.c
68 !Iinclude/linux/kthread.h
69 !Ekernel/kthread.c
70      </sect1>
71
72      <sect1><title>Kernel objects manipulation</title>
73 <!--
74 X!Iinclude/linux/kobject.h
75 -->
76 !Elib/kobject.c
77      </sect1>
78
79      <sect1><title>Kernel utility functions</title>
80 !Iinclude/linux/kernel.h
81 !Ekernel/printk.c
82 !Ekernel/panic.c
83 !Ekernel/sys.c
84 !Ekernel/rcupdate.c
85      </sect1>
86
87   </chapter>
88
89   <chapter id="adt">
90      <title>Data Types</title>
91      <sect1><title>Doubly Linked Lists</title>
92 !Iinclude/linux/list.h
93      </sect1>
94   </chapter>
95
96   <chapter id="libc">
97      <title>Basic C Library Functions</title>
98
99      <para>
100        When writing drivers, you cannot in general use routines which are
101        from the C Library.  Some of the functions have been found generally
102        useful and they are listed below.  The behaviour of these functions
103        may vary slightly from those defined by ANSI, and these deviations
104        are noted in the text.
105      </para>
106
107      <sect1><title>String Conversions</title>
108 !Ilib/vsprintf.c
109 !Elib/vsprintf.c
110      </sect1>
111      <sect1><title>String Manipulation</title>
112 <!-- All functions are exported at now
113 X!Ilib/string.c
114  -->
115 !Elib/string.c
116      </sect1>
117      <sect1><title>Bit Operations</title>
118 !Iinclude/asm-i386/bitops.h
119      </sect1>
120   </chapter>
121
122   <chapter id="kernel-lib">
123      <title>Basic Kernel Library Functions</title>
124
125      <para>
126        The Linux kernel provides more basic utility functions.
127      </para>
128
129      <sect1><title>Bitmap Operations</title>
130 !Elib/bitmap.c
131 !Ilib/bitmap.c
132      </sect1>
133
134      <sect1><title>Command-line Parsing</title>
135 !Elib/cmdline.c
136      </sect1>
137
138      <sect1><title>CRC Functions</title>
139 !Elib/crc16.c
140 !Elib/crc32.c
141 !Elib/crc-ccitt.c
142      </sect1>
143   </chapter>
144
145   <chapter id="mm">
146      <title>Memory Management in Linux</title>
147      <sect1><title>The Slab Cache</title>
148 !Iinclude/linux/slab.h
149 !Emm/slab.c
150      </sect1>
151      <sect1><title>User Space Memory Access</title>
152 !Iinclude/asm-i386/uaccess.h
153 !Earch/i386/lib/usercopy.c
154      </sect1>
155      <sect1><title>More Memory Management Functions</title>
156 !Iinclude/linux/rmap.h
157 !Emm/readahead.c
158 !Emm/filemap.c
159 !Emm/memory.c
160 !Emm/vmalloc.c
161 !Imm/page_alloc.c
162 !Emm/mempool.c
163 !Emm/page-writeback.c
164 !Emm/truncate.c
165      </sect1>
166   </chapter>
167
168
169   <chapter id="ipc">
170      <title>Kernel IPC facilities</title>
171
172      <sect1><title>IPC utilities</title>
173 !Iipc/util.c
174      </sect1>
175   </chapter>
176
177   <chapter id="kfifo">
178      <title>FIFO Buffer</title>
179      <sect1><title>kfifo interface</title>
180 !Iinclude/linux/kfifo.h
181 !Ekernel/kfifo.c
182      </sect1>
183   </chapter>
184
185   <chapter id="relayfs">
186      <title>relay interface support</title>
187
188      <para>
189         Relay interface support
190         is designed to provide an efficient mechanism for tools and
191         facilities to relay large amounts of data from kernel space to
192         user space.
193      </para>
194
195      <sect1><title>relay interface</title>
196 !Ekernel/relay.c
197 !Ikernel/relay.c
198      </sect1>
199   </chapter>
200
201   <chapter id="netcore">
202      <title>Linux Networking</title>
203      <sect1><title>Networking Base Types</title>
204 !Iinclude/linux/net.h
205      </sect1>
206      <sect1><title>Socket Buffer Functions</title>
207 !Iinclude/linux/skbuff.h
208 !Iinclude/net/sock.h
209 !Enet/socket.c
210 !Enet/core/skbuff.c
211 !Enet/core/sock.c
212 !Enet/core/datagram.c
213 !Enet/core/stream.c
214      </sect1>
215      <sect1><title>Socket Filter</title>
216 !Enet/core/filter.c
217      </sect1>
218      <sect1><title>Generic Network Statistics</title>
219 !Iinclude/linux/gen_stats.h
220 !Enet/core/gen_stats.c
221 !Enet/core/gen_estimator.c
222      </sect1>
223      <sect1><title>SUN RPC subsystem</title>
224 <!-- The !D functionality is not perfect, garbage has to be protected by comments
225 !Dnet/sunrpc/sunrpc_syms.c
226 -->
227 !Enet/sunrpc/xdr.c
228 !Enet/sunrpc/svcsock.c
229 !Enet/sunrpc/sched.c
230      </sect1>
231   </chapter>
232
233   <chapter id="netdev">
234      <title>Network device support</title>
235      <sect1><title>Driver Support</title>
236 !Enet/core/dev.c
237 !Enet/ethernet/eth.c
238 !Iinclude/linux/etherdevice.h
239 <!-- FIXME: Removed for now since no structured comments in source
240 X!Enet/core/wireless.c
241 -->
242      </sect1>
243      <sect1><title>Synchronous PPP</title>
244 !Edrivers/net/wan/syncppp.c
245      </sect1>
246   </chapter>
247
248   <chapter id="modload">
249      <title>Module Support</title>
250      <sect1><title>Module Loading</title>
251 !Ekernel/kmod.c
252      </sect1>
253      <sect1><title>Inter Module support</title>
254         <para>
255            Refer to the file kernel/module.c for more information.
256         </para>
257 <!-- FIXME: Removed for now since no structured comments in source
258 X!Ekernel/module.c
259 -->
260      </sect1>
261   </chapter>
262
263   <chapter id="hardware">
264      <title>Hardware Interfaces</title>
265      <sect1><title>Interrupt Handling</title>
266 !Ekernel/irq/manage.c
267      </sect1>
268
269      <sect1><title>DMA Channels</title>
270 !Ekernel/dma.c
271      </sect1>
272
273      <sect1><title>Resources Management</title>
274 !Ikernel/resource.c
275 !Ekernel/resource.c
276      </sect1>
277
278      <sect1><title>MTRR Handling</title>
279 !Earch/i386/kernel/cpu/mtrr/main.c
280      </sect1>
281
282      <sect1><title>PCI Support Library</title>
283 !Edrivers/pci/pci.c
284 !Edrivers/pci/pci-driver.c
285 !Edrivers/pci/remove.c
286 !Edrivers/pci/pci-acpi.c
287 !Edrivers/pci/search.c
288 !Edrivers/pci/msi.c
289 !Edrivers/pci/bus.c
290 <!-- FIXME: Removed for now since no structured comments in source
291 X!Edrivers/pci/hotplug.c
292 -->
293 !Edrivers/pci/probe.c
294 !Edrivers/pci/rom.c
295      </sect1>
296      <sect1><title>PCI Hotplug Support Library</title>
297 !Edrivers/pci/hotplug/pci_hotplug_core.c
298      </sect1>
299      <sect1><title>MCA Architecture</title>
300         <sect2><title>MCA Device Functions</title>
301            <para>
302               Refer to the file arch/i386/kernel/mca.c for more information.
303            </para>
304 <!-- FIXME: Removed for now since no structured comments in source
305 X!Earch/i386/kernel/mca.c
306 -->
307         </sect2>
308         <sect2><title>MCA Bus DMA</title>
309 !Iinclude/asm-i386/mca_dma.h
310         </sect2>
311      </sect1>
312   </chapter>
313
314   <chapter id="firmware">
315      <title>Firmware Interfaces</title>
316      <sect1><title>DMI Interfaces</title>
317 !Edrivers/firmware/dmi_scan.c
318      </sect1>
319   </chapter>
320
321   <chapter id="security">
322      <title>Security Framework</title>
323 !Esecurity/security.c
324   </chapter>
325
326   <chapter id="audit">
327      <title>Audit Interfaces</title>
328 !Ekernel/audit.c
329 !Ikernel/auditsc.c
330 !Ikernel/auditfilter.c
331   </chapter>
332
333   <chapter id="accounting">
334      <title>Accounting Framework</title>
335 !Ikernel/acct.c
336   </chapter>
337
338   <chapter id="pmfuncs">
339      <title>Power Management</title>
340 !Ekernel/power/pm.c
341   </chapter>
342
343   <chapter id="devdrivers">
344      <title>Device drivers infrastructure</title>
345      <sect1><title>Device Drivers Base</title>
346 <!--
347 X!Iinclude/linux/device.h
348 -->
349 !Edrivers/base/driver.c
350 !Edrivers/base/core.c
351 !Edrivers/base/class.c
352 !Edrivers/base/firmware_class.c
353 !Edrivers/base/transport_class.c
354 !Edrivers/base/dmapool.c
355 <!-- Cannot be included, because
356      attribute_container_add_class_device_adapter
357  and attribute_container_classdev_to_container
358      exceed allowed 44 characters maximum
359 X!Edrivers/base/attribute_container.c
360 -->
361 !Edrivers/base/sys.c
362 <!--
363 X!Edrivers/base/interface.c
364 -->
365 !Edrivers/base/platform.c
366 !Edrivers/base/bus.c
367      </sect1>
368      <sect1><title>Device Drivers Power Management</title>
369 !Edrivers/base/power/main.c
370 !Edrivers/base/power/resume.c
371 !Edrivers/base/power/suspend.c
372      </sect1>
373      <sect1><title>Device Drivers ACPI Support</title>
374 <!-- Internal functions only
375 X!Edrivers/acpi/sleep/main.c
376 X!Edrivers/acpi/sleep/wakeup.c
377 X!Edrivers/acpi/motherboard.c
378 X!Edrivers/acpi/bus.c
379 -->
380 !Edrivers/acpi/scan.c
381 !Idrivers/acpi/scan.c
382 <!-- No correct structured comments
383 X!Edrivers/acpi/pci_bind.c
384 -->
385      </sect1>
386      <sect1><title>Device drivers PnP support</title>
387 !Edrivers/pnp/core.c
388 <!-- No correct structured comments
389 X!Edrivers/pnp/system.c
390  -->
391 !Edrivers/pnp/card.c
392 !Edrivers/pnp/driver.c
393 !Edrivers/pnp/manager.c
394 !Edrivers/pnp/support.c
395      </sect1>
396   </chapter>
397
398   <chapter id="blkdev">
399      <title>Block Devices</title>
400 !Eblock/ll_rw_blk.c
401   </chapter>
402
403   <chapter id="chrdev">
404         <title>Char devices</title>
405 !Efs/char_dev.c
406   </chapter>
407
408   <chapter id="miscdev">
409      <title>Miscellaneous Devices</title>
410 !Edrivers/char/misc.c
411   </chapter>
412
413   <chapter id="parportdev">
414      <title>Parallel Port Devices</title>
415 !Iinclude/linux/parport.h
416 !Edrivers/parport/ieee1284.c
417 !Edrivers/parport/share.c
418 !Idrivers/parport/daisy.c
419   </chapter>
420
421   <chapter id="viddev">
422      <title>Video4Linux</title>
423 !Edrivers/media/video/videodev.c
424   </chapter>
425
426   <chapter id="snddev">
427      <title>Sound Devices</title>
428 !Iinclude/sound/core.h
429 !Esound/sound_core.c
430 !Iinclude/sound/pcm.h
431 !Esound/core/pcm.c
432 !Esound/core/device.c
433 !Esound/core/info.c
434 !Esound/core/rawmidi.c
435 !Esound/core/sound.c
436 !Esound/core/memory.c
437 !Esound/core/pcm_memory.c
438 !Esound/core/init.c
439 !Esound/core/isadma.c
440 !Esound/core/control.c
441 !Esound/core/pcm_lib.c
442 !Esound/core/hwdep.c
443 !Esound/core/pcm_native.c
444 !Esound/core/memalloc.c
445 <!-- FIXME: Removed for now since no structured comments in source
446 X!Isound/sound_firmware.c
447 -->
448   </chapter>
449
450   <chapter id="uart16x50">
451      <title>16x50 UART Driver</title>
452 !Iinclude/linux/serial_core.h
453 !Edrivers/serial/serial_core.c
454 !Edrivers/serial/8250.c
455   </chapter>
456
457   <chapter id="z85230">
458      <title>Z85230 Support Library</title>
459 !Edrivers/net/wan/z85230.c
460   </chapter>
461
462   <chapter id="fbdev">
463      <title>Frame Buffer Library</title>
464
465      <para>
466        The frame buffer drivers depend heavily on four data structures.  
467        These structures are declared in include/linux/fb.h.  They are 
468        fb_info, fb_var_screeninfo, fb_fix_screeninfo and fb_monospecs. 
469        The last three can be made available to and from userland. 
470      </para>
471
472      <para>
473        fb_info defines the current state of a particular video card. 
474        Inside fb_info, there exists a fb_ops structure which is a 
475        collection of needed functions to make fbdev and fbcon work.
476        fb_info is only visible to the kernel.
477      </para>
478
479      <para>
480        fb_var_screeninfo is used to describe the features of a video card 
481        that are user defined.  With fb_var_screeninfo, things such as
482        depth and the resolution may be defined.
483      </para>
484
485      <para>
486        The next structure is fb_fix_screeninfo. This defines the 
487        properties of a card that are created when a mode is set and can't 
488        be changed otherwise.  A good example of this is the start of the 
489        frame buffer memory.  This "locks" the address of the frame buffer
490        memory, so that it cannot be changed or moved.
491      </para>
492
493      <para>
494        The last structure is fb_monospecs. In the old API, there was 
495        little importance for fb_monospecs. This allowed for forbidden things 
496        such as setting a mode of 800x600 on a fix frequency monitor. With 
497        the new API, fb_monospecs prevents such things, and if used 
498        correctly, can prevent a monitor from being cooked.  fb_monospecs
499        will not be useful until kernels 2.5.x.
500      </para>
501
502      <sect1><title>Frame Buffer Memory</title>
503 !Edrivers/video/fbmem.c
504      </sect1>
505 <!--
506      <sect1><title>Frame Buffer Console</title>
507 X!Edrivers/video/console/fbcon.c
508      </sect1>
509 -->
510      <sect1><title>Frame Buffer Colormap</title>
511 !Edrivers/video/fbcmap.c
512      </sect1>
513 <!-- FIXME:
514   drivers/video/fbgen.c has no docs, which stuffs up the sgml.  Comment
515   out until somebody adds docs.  KAO
516      <sect1><title>Frame Buffer Generic Functions</title>
517 X!Idrivers/video/fbgen.c
518      </sect1>
519 KAO -->
520      <sect1><title>Frame Buffer Video Mode Database</title>
521 !Idrivers/video/modedb.c
522 !Edrivers/video/modedb.c
523      </sect1>
524      <sect1><title>Frame Buffer Macintosh Video Mode Database</title>
525 !Edrivers/video/macmodes.c
526      </sect1>
527      <sect1><title>Frame Buffer Fonts</title>
528         <para>
529            Refer to the file drivers/video/console/fonts.c for more information.
530         </para>
531 <!-- FIXME: Removed for now since no structured comments in source
532 X!Idrivers/video/console/fonts.c
533 -->
534      </sect1>
535   </chapter>
536
537   <chapter id="input_subsystem">
538      <title>Input Subsystem</title>
539 !Iinclude/linux/input.h
540 !Edrivers/input/input.c
541 !Edrivers/input/ff-core.c
542 !Edrivers/input/ff-memless.c
543   </chapter>
544 </book>