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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * from: @(#)isa_device.h 7.1 (Berkeley) 5/9/91
30 * $FreeBSD$
31 */
32
33 #ifndef _I386_ISA_ISA_DMA_H_
34 #define _I386_ISA_ISA_DMA_H_
35
36 #ifdef _KERNEL
37
38 #define ISADMA_READ 0x00100000
39 #define ISADMA_WRITE 0
40 #define ISADMA_RAW 0x00080000
41
42 void isa_dmacascade(int chan);
43 void isa_dmadone(int flags, caddr_t addr, int nbytes, int chan);
44 void isa_dmainit(int chan, u_int bouncebufsize);
45 void isa_dmastart(int flags, caddr_t addr, u_int nbytes, int chan);
46 int isa_dma_acquire(int chan);
47 void isa_dma_release(int chan);
48 int isa_dmastatus(int chan);
49 int isa_dmastop(int chan);
50 #endif
51
52 #endif /* !_I386_ISA_ISA_DMA_H_ */
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