diff options
Diffstat (limited to 'device/dev_hdr.h')
| -rw-r--r-- | device/dev_hdr.h | 48 |
1 files changed, 36 insertions, 12 deletions
diff --git a/device/dev_hdr.h b/device/dev_hdr.h index b976caf..50e2977 100644 --- a/device/dev_hdr.h +++ b/device/dev_hdr.h @@ -28,6 +28,31 @@ * Date: 3/89 */ +/* + * Mach device emulation definitions (i386at version). + * + * Copyright (c) 1996 The University of Utah and + * the Computer Systems Laboratory at the University of Utah (CSL). + * All rights reserved. + * + * Permission to use, copy, modify and distribute this software is hereby + * granted provided that (1) source code retains these copyright, permission, + * and disclaimer notices, and (2) redistributions including binaries + * reproduce the notices in supporting documentation, and (3) all advertising + * materials mentioning features or use of this software display the following + * acknowledgement: ``This product includes software developed by the + * Computer Systems Laboratory at the University of Utah.'' + * + * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS + * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF + * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * CSL requests users of this software to return to csl-dist@cs.utah.edu any + * improvements that they make and grant CSL redistribution rights. + * + * Author: Shantanu Goel, University of Utah CSL + */ + #ifndef _DEVICE_DEV_HDR_H_ #define _DEVICE_DEV_HDR_H_ @@ -37,16 +62,17 @@ #include <device/conf.h> -#ifdef i386 -#include <i386at/dev_hdr.h> -#else -#define mach_device device -#define mach_device_t device_t -#define MACH_DEVICE_NULL DEVICE_NULL -#define mach_device_reference device_reference -#define mach_device_deallocate device_deallocate -#define mach_convert_device_to_port convert_device_to_port -#endif +/* This structure is associated with each open device port. + The port representing the device points to this structure. */ +struct device +{ + struct device_emulation_ops *emul_ops; + void *emul_data; +}; + +typedef struct device *device_t; + +#define DEVICE_NULL ((device_t) 0) /* * Generic device header. May be allocated with the device, @@ -72,9 +98,7 @@ struct mach_device { int dev_number; /* device number */ int bsize; /* replacement for DEV_BSIZE */ struct dev_ops *dev_ops; /* and operations vector */ -#ifdef i386 struct device dev; /* the real device structure */ -#endif }; typedef struct mach_device *mach_device_t; #define MACH_DEVICE_NULL ((mach_device_t)0) |