FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/isa_dma.h
1 /*-
2 * Copyright (c) 1991 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * from: @(#)isa_device.h 7.1 (Berkeley) 5/9/91
34 * $FreeBSD: releng/5.2/sys/i386/isa/isa_dma.h 92765 2002-03-20 07:51:46Z alfred $
35 */
36
37 #ifndef _I386_ISA_ISA_DMA_H_
38 #define _I386_ISA_ISA_DMA_H_
39
40 #ifdef _KERNEL
41
42 #define ISADMA_READ 0x00100000
43 #define ISADMA_WRITE 0
44 #define ISADMA_RAW 0x00080000
45
46 void isa_dmacascade(int chan);
47 void isa_dmadone(int flags, caddr_t addr, int nbytes, int chan);
48 void isa_dmainit(int chan, u_int bouncebufsize);
49 void isa_dmastart(int flags, caddr_t addr, u_int nbytes, int chan);
50 int isa_dma_acquire(int chan);
51 void isa_dma_release(int chan);
52 int isa_dmastatus(int chan);
53 int isa_dmastop(int chan);
54 #endif
55
56 #endif /* !_I386_ISA_ISA_DMA_H_ */
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