89a056df78
Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
107 lines
3 KiB
XML
107 lines
3 KiB
XML
<?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="MCAGuide">
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<bookinfo>
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<title>MCA Driver Programming Interface</title>
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<authorgroup>
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<author>
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<firstname>Alan</firstname>
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<surname>Cox</surname>
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<affiliation>
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<address>
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<email>alan@lxorguk.ukuu.org.uk</email>
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</address>
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</affiliation>
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</author>
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<author>
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<firstname>David</firstname>
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<surname>Weinehall</surname>
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</author>
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<author>
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<firstname>Chris</firstname>
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<surname>Beauregard</surname>
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</author>
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</authorgroup>
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<copyright>
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<year>2000</year>
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<holder>Alan Cox</holder>
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<holder>David Weinehall</holder>
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<holder>Chris Beauregard</holder>
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</copyright>
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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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<toc></toc>
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<chapter id="intro">
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<title>Introduction</title>
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<para>
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The MCA bus functions provide a generalised interface to find MCA
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bus cards, to claim them for a driver, and to read and manipulate POS
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registers without being aware of the motherboard internals or
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certain deep magic specific to onboard devices.
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</para>
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<para>
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The basic interface to the MCA bus devices is the slot. Each slot
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is numbered and virtual slot numbers are assigned to the internal
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devices. Using a pci_dev as other busses do does not really make
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sense in the MCA context as the MCA bus resources require card
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specific interpretation.
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</para>
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<para>
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Finally the MCA bus functions provide a parallel set of DMA
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functions mimicing the ISA bus DMA functions as closely as possible,
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although also supporting the additional DMA functionality on the
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MCA bus controllers.
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</para>
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</chapter>
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<chapter id="bugs">
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<title>Known Bugs And Assumptions</title>
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<para>
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None.
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</para>
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</chapter>
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<chapter id="pubfunctions">
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<title>Public Functions Provided</title>
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!Edrivers/mca/mca-legacy.c
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</chapter>
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<chapter id="dmafunctions">
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<title>DMA Functions Provided</title>
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!Iarch/x86/include/asm/mca_dma.h
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</chapter>
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</book>
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