3 * Hidetoshi Shimokawa. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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:
16 * This product includes software developed by Hidetoshi Shimokawa.
18 * 4. Neither the name of the author nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * $FreeBSD: src/sys/dev/firewire/fwdma.h,v 1.1.2.1 2003/04/28 03:29:18 simokawa Exp $
37 #if __FreeBSD_version >= 500111
38 typedef int bus_dmasync_op_t;
42 bus_dma_tag_t dma_tag;
54 struct fwdma_alloc_multi {
58 bus_dma_tag_t dma_tag;
59 struct fwdma_seg seg[0];
62 static __inline void *
63 fwdma_v_addr(struct fwdma_alloc_multi *am, int index)
65 bus_size_t ssize = am->ssize;
66 int offset = am->esize * index;
68 return ((caddr_t)am->seg[offset / ssize].v_addr + (offset % ssize));
71 static __inline bus_addr_t
72 fwdma_bus_addr(struct fwdma_alloc_multi *am, int index)
74 bus_size_t ssize = am->ssize;
75 int offset = am->esize * index;
77 return (am->seg[offset / ssize].bus_addr + (offset % ssize));
81 fwdma_sync(struct fwdma_alloc *dma, bus_dmasync_op_t op)
83 bus_dmamap_sync(dma->dma_tag, dma->dma_map, op);
87 fwdma_sync_multiseg(struct fwdma_alloc_multi *am,
88 int start, int end, bus_dmasync_op_t op)
90 struct fwdma_seg *seg, *eseg;
92 seg = &am->seg[am->esize * start / am->ssize];
93 eseg = &am->seg[am->esize * end / am->ssize];
94 for (; seg <= eseg; seg ++)
95 bus_dmamap_sync(am->dma_tag, seg->dma_map, op);
99 fwdma_sync_multiseg_all(struct fwdma_alloc_multi *am, bus_dmasync_op_t op)
101 struct fwdma_seg *seg;
105 for (i = 0; i < am->nseg; i++, seg++)
106 bus_dmamap_sync(am->dma_tag, seg->dma_map, op);
109 void *fwdma_malloc(struct firewire_comm *, int, bus_size_t, struct fwdma_alloc *, int);
110 void fwdma_free(struct firewire_comm *, struct fwdma_alloc *);
111 void *fwdma_malloc_size(bus_dma_tag_t, bus_dmamap_t *, bus_size_t, bus_addr_t *, int);
112 void fwdma_free_size(bus_dma_tag_t, bus_dmamap_t, void *, bus_size_t);
113 struct fwdma_alloc_multi *fwdma_malloc_multiseg(struct firewire_comm *,
115 void fwdma_free_multiseg(struct fwdma_alloc_multi *);