1 /* $NetBSD: bus_dma_funcs.h,v 1.1 2011/07/01 17:28:55 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998, 2000, 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1996 Carnegie-Mellon University. 35 * All rights reserved. 36 * 37 * Author: Chris G. Demetriou 38 * 39 * Permission to use, copy, modify and distribute this software and 40 * its documentation is hereby granted, provided that both the copyright 41 * notice and this permission notice appear in all copies of the 42 * software, derivative works or modified versions, and any portions 43 * thereof, and that both notices appear in supporting documentation. 44 * 45 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 46 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 47 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 48 * 49 * Carnegie Mellon requests users of this software to return to 50 * 51 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 52 * School of Computer Science 53 * Carnegie Mellon University 54 * Pittsburgh PA 15213-3890 55 * 56 * any improvements or extensions that they make and grant Carnegie the 57 * rights to redistribute these changes. 58 */ 59 60 #ifndef _MIPS_BUS_DMA_FUNCS_H_ 61 #define _MIPS_BUS_DMA_FUNCS_H_ 62 63 #ifdef _KERNEL 64 /* 65 * Bus DMA methods. 66 */ 67 68 /* Forwards needed by prototypes below. */ 69 struct mbuf; 70 struct uio; 71 72 #define bus_dmamap_create(t, s, n, m, b, f, p) \ 73 (*(t)->_dmamap_ops.dmamap_create)((t), (s), (n), (m), (b), (f), (p)) 74 #define bus_dmamap_destroy(t, p) \ 75 (*(t)->_dmamap_ops.dmamap_destroy)((t), (p)) 76 #define bus_dmamap_load(t, m, b, s, p, f) \ 77 (*(t)->_dmamap_ops.dmamap_load)((t), (m), (b), (s), (p), (f)) 78 #define bus_dmamap_load_mbuf(t, m, b, f) \ 79 (*(t)->_dmamap_ops.dmamap_load_mbuf)((t), (m), (b), (f)) 80 #define bus_dmamap_load_uio(t, m, u, f) \ 81 (*(t)->_dmamap_ops.dmamap_load_uio)((t), (m), (u), (f)) 82 #define bus_dmamap_load_raw(t, m, sg, n, s, f) \ 83 (*(t)->_dmamap_ops.dmamap_load_raw)((t), (m), (sg), (n), (s), (f)) 84 #define bus_dmamap_unload(t, p) \ 85 (*(t)->_dmamap_ops.dmamap_unload)((t), (p)) 86 #define bus_dmamap_sync(t, p, o, l, ops) \ 87 (*(t)->_dmamap_ops.dmamap_sync)((t), (p), (o), (l), (ops)) 88 89 #define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \ 90 (*(t)->_dmamem_ops.dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f)) 91 #define bus_dmamem_free(t, sg, n) \ 92 (*(t)->_dmamem_ops.dmamem_free)((t), (sg), (n)) 93 #define bus_dmamem_map(t, sg, n, s, k, f) \ 94 (*(t)->_dmamem_ops.dmamem_map)((t), (sg), (n), (s), (k), (f)) 95 #define bus_dmamem_unmap(t, k, s) \ 96 (*(t)->_dmamem_ops.dmamem_unmap)((t), (k), (s)) 97 #define bus_dmamem_mmap(t, sg, n, o, p, f) \ 98 (*(t)->_dmamem_ops.dmamem_mmap)((t), (sg), (n), (o), (p), (f)) 99 100 #define bus_dmatag_subregion(t, mna, mxa, nt, f) \ 101 (*(t)->_dmatag_ops.dmatag_subregion)((t), (mna), (mxa), (nt), (f)) 102 #define bus_dmatag_destroy(t) \ 103 (*(t)->_dmatag_ops.dmatag_destroy)((t)) 104 105 #ifdef _MIPS_BUS_DMA_PRIVATE 106 107 int _bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t, 108 bus_size_t, int, bus_dmamap_t *); 109 void _bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t); 110 111 int _bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, void *, bus_size_t, 112 struct proc *, int); 113 int _bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t, struct mbuf *, int); 114 int _bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t, struct uio *, int); 115 int _bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t, bus_dma_segment_t *, 116 int, bus_size_t, int); 117 118 void _bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t); 119 void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, bus_size_t, 120 int); 121 122 int _bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size, 123 bus_size_t alignment, bus_size_t boundary, 124 bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags); 125 int _bus_dmamem_alloc_range(bus_dma_tag_t tag, bus_size_t size, 126 bus_size_t alignment, bus_size_t boundary, 127 bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags, 128 paddr_t low, paddr_t high); 129 void _bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs, 130 int nsegs); 131 int _bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs, 132 int nsegs, size_t size, void **kvap, int flags); 133 void _bus_dmamem_unmap(bus_dma_tag_t tag, void *kva, 134 size_t size); 135 paddr_t _bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs, 136 int nsegs, off_t off, int prot, int flags); 137 138 int _bus_dmatag_subregion(bus_dma_tag_t, bus_addr_t, bus_addr_t, 139 bus_dma_tag_t *, int); 140 void _bus_dmatag_destroy(bus_dma_tag_t); 141 142 #endif /* _MIPS_BUS_DMA_PRIVATE */ 143 144 #endif /* _KERNEL */ 145 146 #endif /* _MIPS_BUS_DMA_FUNCS_H_ */ 147