1 files changed, 91 insertions, 0 deletions
diff --git a/sys/dev/usb/usb_mem.h b/sys/dev/usb/usb_mem.h
new file mode 100644
index 0000000..b3788de
--- /dev/null
+++ b/sys/dev/usb/usb_mem.h
@@ -0,0 +1,91 @@
+/*	$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.
+ */
+
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+typedef struct usb_dma_block {
+	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_dma_block) next;
+} usb_dma_block_t;
+
+#define DMAADDR(dma, o) ((dma)->block->map->dm_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 *);
+
+#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/bio.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 */
+
+#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))
+
+#ifdef __alpha__
+#define DMAADDR(dma, o)	(alpha_XXX_dmamap((vm_offset_t) *(dma) + (o)))
+#else
+#define DMAADDR(dma, o)	(vtophys(*(dma) + (o)))
+#endif
+#define KERNADDR(dma, o)	((void *) ((char *)*(dma) + (o)))
+#endif /* __FreeBSD__ */
+