mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
93 lines
3.3 KiB
C
93 lines
3.3 KiB
C
/* $NetBSD: usb_mem.h,v 1.4 1999/01/09 12:16:54 augustss Exp $ */
|
|
/* $FreeBSD$ */
|
|
|
|
/*
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Lennart Augustsson (augustss@carlstedt.se) at
|
|
* Carlstedt Research & Technology.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#if defined(__NetBSD__)
|
|
typedef struct usb_block_dma {
|
|
bus_dma_tag_t tag;
|
|
bus_dmamap_t map;
|
|
caddr_t kaddr;
|
|
bus_dma_segment_t segs[1];
|
|
int nsegs;
|
|
size_t size;
|
|
size_t align;
|
|
int fullblock;
|
|
LIST_ENTRY(usb_block_dma) next;
|
|
} usb_dma_block_t;
|
|
|
|
typedef struct {
|
|
usb_dma_block_t *block;
|
|
u_int offs;
|
|
} usb_dma_t;
|
|
|
|
#define DMAADDR(dma) ((dma)->block->segs[0].ds_addr + (dma)->offs)
|
|
#define KERNADDR(dma) ((void *)((dma)->block->kaddr + (dma)->offs))
|
|
|
|
usbd_status usb_allocmem __P((bus_dma_tag_t, size_t, size_t, usb_dma_t *));
|
|
void usb_freemem __P((bus_dma_tag_t, usb_dma_t *));
|
|
|
|
#elif defined(__FreeBSD__)
|
|
|
|
/*
|
|
* FreeBSD does not have special functions for dma memory, so let's keep it
|
|
* simple for now.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/kernel.h>
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <machine/pmap.h> /* for vtophys */
|
|
|
|
typedef void * usb_dma_t;
|
|
|
|
#define usb_allocmem(t,s,a,p) (*(p) = malloc(s, M_USB, M_NOWAIT), (*(p) == NULL? USBD_NOMEM: USBD_NORMAL_COMPLETION))
|
|
#define usb_freemem(t,p) (free(*(p), M_USB))
|
|
|
|
#define DMAADDR(dma) (vtophys(*(dma)))
|
|
#define KERNADDR(dma) ((void *) *(dma))
|
|
#endif
|
|
|