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  MCA Driver Programming Interface
 
  
   
    Alan
    Cox
    
     
      alan@redhat.com
     
    
   
   
    David
    Weinehall
   
   
    Chris
    Beauregard
   
  
 
  
   2000
   Alan Cox
   David Weinehall
   Chris Beauregard
  
 
  
   
     This documentation is free software; you can redistribute
     it and/or modify it under the terms of the GNU General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later
     version.
   
 
   
     This program 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.
   
 
   
     You should have received a copy of the GNU General Public
     License along with this program; if not, write to the Free
     Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
     MA 02111-1307 USA
   
 
   
     For more details see the file COPYING in the source
     distribution of Linux.
   
  
 
 

 
  
      Introduction
  
        The MCA bus functions provide a generalised interface to find MCA
        bus cards, to claim them for a driver, and to read and manipulate POS
        registers without being aware of the motherboard internals or
        certain deep magic specific to onboard devices.
  
  
        The basic interface to the MCA bus devices is the slot. Each slot
        is numbered and virtual slot numbers are assigned to the internal
        devices. Using a pci_dev as other busses do does not really make
        sense in the MCA context as the MCA bus resources require card
        specific interpretation.
  
  
        Finally the MCA bus functions provide a parallel set of DMA
        functions mimicing the ISA bus DMA functions as closely as possible,
        although also supporting the additional DMA functionality on the
        MCA bus controllers.
  
  
  
     Known Bugs And Assumptions
  
        None.
  
  
 
  
     Public Functions Provided
!Earch/i386/kernel/mca.c
  
 
  
     DMA Functions Provided
!Iinclude/asm-i386/mca_dma.h
  
 


Line No.	Rev	Author	Line
1	1275	phoenix
2
3
4
5			`MCA Driver Programming Interface`
6
7
8
9			`Alan`
10			`Cox`
11
12
13			`alan@redhat.com`
14
15
16
17
18			`David`
19			`Weinehall`
20
21
22			`Chris`
23			`Beauregard`
24
25
26
27
28			`2000`
29			`Alan Cox`
30			`David Weinehall`
31			`Chris Beauregard`
32
33
34
35
36			`This documentation is free software; you can redistribute`
37			`it and/or modify it under the terms of the GNU General Public`
38			`License as published by the Free Software Foundation; either`
39			`version 2 of the License, or (at your option) any later`
40			`version.`
41
42
43
44			`This program is distributed in the hope that it will be`
45			`useful, but WITHOUT ANY WARRANTY; without even the implied`
46			`warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.`
47			`See the GNU General Public License for more details.`
48
49
50
51			`You should have received a copy of the GNU General Public`
52			`License along with this program; if not, write to the Free`
53			`Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,`
54			`MA 02111-1307 USA`
55
56
57
58			`For more details see the file COPYING in the source`
59			`distribution of Linux.`
60
61
62
63
64
65
66
67			`Introduction`
68
69			`The MCA bus functions provide a generalised interface to find MCA`
70			`bus cards, to claim them for a driver, and to read and manipulate POS`
71			`registers without being aware of the motherboard internals or`
72			`certain deep magic specific to onboard devices.`
73
74
75			`The basic interface to the MCA bus devices is the slot. Each slot`
76			`is numbered and virtual slot numbers are assigned to the internal`
77			`devices. Using a pci_dev as other busses do does not really make`
78			`sense in the MCA context as the MCA bus resources require card`
79			`specific interpretation.`
80
81
82			`Finally the MCA bus functions provide a parallel set of DMA`
83			`functions mimicing the ISA bus DMA functions as closely as possible,`
84			`although also supporting the additional DMA functionality on the`
85			`MCA bus controllers.`
86
87
88
89			`Known Bugs And Assumptions`
90
91			`None.`
92
93
94
95
96			`Public Functions Provided`
97			`!Earch/i386/kernel/mca.c`
98
99
100
101			`DMA Functions Provided`
102			`!Iinclude/asm-i386/mca_dma.h`
103
104
105

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