1 files changed, 47 insertions, 0 deletions
diff --git a/scsi/adapters/scsi_user_dma.h b/scsi/adapters/scsi_user_dma.h
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+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+/*
+ *	File: scsi_user_dma.h
+ * 	Author: Alessandro Forin, Carnegie Mellon University
+ *	Date:	4/91
+ *
+ *	Defines for Mach 2.5 compat, user-space DMA routines
+ */
+
+/* There is one such structure per I/O device
+   that needs to xfer data to/from user space */
+
+typedef struct fdma {
+	vm_offset_t	kernel_virtual;
+	vm_size_t	max_data;
+	vm_offset_t	user_virtual;
+	int		xfer_size_rnd;
+} *fdma_t;
+
+extern int
+	fdma_init(/* fdma_t, vm_size_t */),
+	fdma_map(/* fdma_t, struct buf* */),
+	fdma_unmap(/* fdma_t, struct buf* */);