1 /* $NetBSD: usb_mem.h,v 1.9 1999/10/13 08:10:58 augustss Exp $ */
2 /* $FreeBSD: src/sys/dev/usb/usb_mem.h,v 1.10.2.2 2000/10/31 23:23:30 n_hibma Exp $ */
3 /* $DragonFly: src/sys/bus/usb/usb_mem.h,v 1.2 2003/06/17 04:28:32 dillon Exp $ */
6 * Copyright (c) 1998 The NetBSD Foundation, Inc.
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Lennart Augustsson (lennart@augustsson.net) at
11 * Carlstedt Research & Technology.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the NetBSD
24 * Foundation, Inc. and its contributors.
25 * 4. Neither the name of The NetBSD Foundation nor the names of its
26 * contributors may be used to endorse or promote products derived
27 * from this software without specific prior written permission.
29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
32 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGE.
42 #if defined(__NetBSD__) || defined(__OpenBSD__)
43 typedef struct usb_dma_block {
47 bus_dma_segment_t segs[1];
52 LIST_ENTRY(usb_dma_block) next;
55 #define DMAADDR(dma, offset) ((dma)->block->segs[0].ds_addr + (dma)->offs + (offset))
56 #define KERNADDR(dma, offset) ((void *)((dma)->block->kaddr + (dma)->offs) + (offset))
58 usbd_status usb_allocmem(usbd_bus_handle,size_t,size_t, usb_dma_t *);
59 void usb_freemem(usbd_bus_handle, usb_dma_t *);
61 #elif defined(__FreeBSD__)
64 * FreeBSD does not have special functions for dma memory, so let's keep it
68 #include <sys/param.h>
69 #include <sys/systm.h>
70 #include <sys/queue.h>
73 #include <sys/malloc.h>
74 #include <sys/kernel.h>
78 #include <machine/pmap.h> /* for vtophys */
80 #define usb_allocmem(t,s,a,p) (*(p) = malloc(s, M_USB, M_NOWAIT), (*(p) == NULL? USBD_NOMEM: USBD_NORMAL_COMPLETION))
81 #define usb_freemem(t,p) (free(*(p), M_USB))
84 #define DMAADDR(dma, offset) (alpha_XXX_dmamap((vm_offset_t) *(dma) + (offset)))
86 #define DMAADDR(dma, offset) (vtophys(*(dma) + (offset)))
88 #define KERNADDR(dma, offset) ((void *) (*(dma) + (offset)))