diff options
Diffstat (limited to 'sys/legacy/dev/usb/usb_mem.h')
| -rw-r--r-- | sys/legacy/dev/usb/usb_mem.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/sys/legacy/dev/usb/usb_mem.h b/sys/legacy/dev/usb/usb_mem.h new file mode 100644 index 0000000..b8f0a14 --- /dev/null +++ b/sys/legacy/dev/usb/usb_mem.h @@ -0,0 +1,58 @@ +/* $NetBSD: usb_mem.h,v 1.18 2002/05/28 17:45:17 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 (lennart@augustsson.net) 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. + */ + +typedef struct usb_dma_block { + bus_dma_tag_t tag; + bus_dmamap_t map; + void *kaddr; + bus_dma_segment_t segs[1]; + int nsegs; + size_t size; + size_t align; + int fullblock; + LIST_ENTRY(usb_dma_block) next; +} usb_dma_block_t; + +#define DMAADDR(dma, o) ((dma)->block->segs[0].ds_addr + (dma)->offs + (o)) +#define KERNADDR(dma, o) \ + ((void *)((char *)((dma)->block->kaddr) + (dma)->offs + (o))) + +usbd_status usb_allocmem(usbd_bus_handle,size_t,size_t, usb_dma_t *); +void usb_freemem(usbd_bus_handle, usb_dma_t *); |
