BSD 4_3_Net_2 development
[unix-history] / .ref-BSD-4_3_Reno / usr / src / sys / hpdev / dmavar.h
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1c15e888
C
1/*
2 * Copyright (c) 1982, 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution is only permitted until one year after the first shipment
6 * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and
7 * binary forms are permitted provided that: (1) source distributions retain
8 * this entire copyright notice and comment, and (2) distributions including
9 * binaries display the following acknowledgement: This product includes
10 * software developed by the University of California, Berkeley and its
11 * contributors'' in the documentation or other materials provided with the
12 * distribution and in all advertising materials mentioning features or use
13 * of this software. Neither the name of the University nor the names of
14 * its contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
19 *
20 * @(#)dmavar.h 7.1 (Berkeley) 5/8/90
21 */
22
23/* dmago flags */
24#define DMAGO_BYTE 0x00
25#define DMAGO_WORD 0x01
26#define DMAGO_LWORD 0x02
27#define DMAGO_PRI 0x04
28#define DMAGO_READ 0x08
29#define DMAGO_NOINT 0x80
30
31/* dma "controllers" (channels) */
32#define DMA0 0x1
33#define DMA1 0x2
34
35#ifdef KERNEL
36extern void dmago(), dmafree();
37extern int dmareq();
38#endif