1 /* $NetBSD: bus.h,v 1.11 2003/07/28 17:35:54 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 /*-
41 * Copyright (c) 1996 Charles M. Hannum. All rights reserved.
42 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
43 *
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
46 * are met:
47 * 1. Redistributions of source code must retain the above copyright
48 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 * must display the following acknowledgement:
54 * This product includes software developed by Christopher G. Demetriou
55 * for the NetBSD Project.
56 * 4. The name of the author may not be used to endorse or promote products
57 * derived from this software without specific prior written permission
58 *
59 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
60 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
61 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
62 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
63 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
64 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
65 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
66 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
67 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
68 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
69 *
70 * $FreeBSD: src/sys/arm/include/bus_dma.h,v 1.2 2007/01/17 00:53:05 cognet Exp $
71 */
72
73 #ifndef _ARM_BUS_DMA_H
74 #define _ARM_BUS_DMA_H
75
76 #include <sys/bus_dma.h>
77
78 /* Bus Space DMA macros */
79
80 #define BUS_DMA_TAG_VALID(t) ((t) != (bus_dma_tag_t)0)
81
82 #ifdef _ARM32_BUS_DMA_PRIVATE
83 /*
84 * arm32_dma_range
85 *
86 * This structure describes a valid DMA range.
87 */
88 struct arm32_dma_range {
89 bus_addr_t dr_sysbase; /* system base address */
90 bus_addr_t dr_busbase; /* appears here on bus */
91 bus_size_t dr_len; /* length of range */
92 };
93
94 /* _dm_buftype */
95 #define ARM32_BUFTYPE_INVALID 0
96 #define ARM32_BUFTYPE_LINEAR 1
97 #define ARM32_BUFTYPE_MBUF 2
98 #define ARM32_BUFTYPE_UIO 3
99 #define ARM32_BUFTYPE_RAW 4
100
101 struct arm32_dma_range *bus_dma_get_range(void);
102 int bus_dma_get_range_nb(void);
103
104 extern bus_dma_tag_t arm_root_dma_tag;
105
106 #endif /* _ARM32_BUS_DMA_PRIVATE */
107
108 #endif /* _ARM_BUS_DMA_H */
109 Cache object: 67ba46659dcf7df070fde6942fffe655
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