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1.1 root 1: /*
2: * Mach Operating System
3: * Copyright (c) 1993,1991,1990,1989 Carnegie Mellon University
4: * All Rights Reserved.
5: *
6: * Permission to use, copy, modify and distribute this software and its
7: * documentation is hereby granted, provided that both the copyright
8: * notice and this permission notice appear in all copies of the
9: * software, derivative works or modified versions, and any portions
10: * thereof, and that both notices appear in supporting documentation.
11: *
12: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
13: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14: * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15: *
16: * Carnegie Mellon requests users of this software to return to
17: *
18: * Software Distribution Coordinator or [email protected]
19: * School of Computer Science
20: * Carnegie Mellon University
21: * Pittsburgh PA 15213-3890
22: *
23: * any improvements or extensions that they make and grant Carnegie Mellon
24: * the rights to redistribute these changes.
25: */
26: /*
27: * Author: David B. Golub, Carnegie Mellon University
28: * Date: 8/88
29: */
30:
31: #ifndef _DEVICE_CONF_H_
32: #define _DEVICE_CONF_H_
33:
34: #include <mach/machine/vm_types.h>
35:
36: /*
37: * Operations list for major device types.
38: */
39: struct dev_ops {
40: char * d_name; /* name for major device */
41: int (*d_open)(); /* open device */
42: int (*d_close)(); /* close device */
43: int (*d_read)(); /* read */
44: int (*d_write)(); /* write */
45: int (*d_getstat)(); /* get status/control */
46: int (*d_setstat)(); /* set status/control */
47: vm_offset_t (*d_mmap)(); /* map memory */
48: int (*d_async_in)();/* asynchronous input setup */
49: int (*d_reset)(); /* reset device */
50: int (*d_port_death)();
51: /* clean up reply ports */
52: int d_subdev; /* number of sub-devices per
53: unit */
54: int (*d_dev_info)(); /* driver info for kernel */
55: };
56: typedef struct dev_ops *dev_ops_t;
57:
58: /*
59: * Routines for null entries.
60: */
61: extern int nulldev(); /* no operation - OK */
62: extern int nodev(); /* no operation - error */
63: extern vm_offset_t nomap(); /* no operation - error */
64:
65: /*
66: * Flavor constants for d_dev_info routine
67: */
68: #define D_INFO_BLOCK_SIZE 1
69:
70: /*
71: * Head of list of attached devices
72: */
73: extern struct dev_ops dev_name_list[];
74: extern int dev_name_count;
75:
76: /*
77: * Macro to search device list
78: */
79: #define dev_search(dp) \
80: for (dp = dev_name_list; \
81: dp < &dev_name_list[dev_name_count]; \
82: dp++)
83:
84: /*
85: * Indirection vectors for certain devices.
86: */
87: struct dev_indirect {
88: char * d_name; /* name for device */
89: dev_ops_t d_ops; /* operations (major device) */
90: int d_unit; /* and unit number */
91: };
92: typedef struct dev_indirect *dev_indirect_t;
93:
94: /*
95: * List of indirect devices.
96: */
97: extern struct dev_indirect dev_indirect_list[];
98: extern int dev_indirect_count;
99:
100: /*
101: * Macro to search indirect list
102: */
103: #define dev_indirect_search(di) \
104: for (di = dev_indirect_list; \
105: di < &dev_indirect_list[dev_indirect_count]; \
106: di++)
107:
108: /*
109: * Exported routine to set indirection.
110: */
1.1.1.2 ! root 111: extern void dev_set_indirect(char *, dev_ops_t, int);
1.1 root 112:
113: #endif /* _DEVICE_CONF_H_ */
114:
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