1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/* $NetBSD: device.h,v 1.11 1996/10/01 01:04:50 jonathan Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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 University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
* @(#)device.h 8.1 (Berkeley) 6/10/93
*/
/*
* This structure is used to encapsulate the routines for a device driver.
* This allows an "object oriented" approach so a controller device driver
* can support multiple attached devices or a device can be attached to
* different types of controllers.
*/
struct ScsiCmd;
struct pmax_driver {
char *d_name; /* device driver name (e.g., "rz") */
/* routine to probe & initialize device */
int (*d_init) __P((void *));
/* routine to start operation */
void (*d_start) __P((struct ScsiCmd *cmd));
/* routine to call when operation complete */
void (*d_done) __P(( int unit, int errno, int buflen,
int status_byte));
/* routine to call when interrupt is seen */
int (*d_intr) __P((void* sc));
};
/*
* This structure describes controllers directly connected to CPU
* and is partially initialized in "ioconf.c" by the 'config' program.
*/
struct pmax_ctlr {
struct pmax_driver *pmax_driver;/* controller driver routines */
int pmax_unit; /* controller number */
char *pmax_addr; /* address of controller */
int pmax_pri; /* interrupt priority */
int pmax_flags; /* flags */
int pmax_alive; /* true if init routine succeeded */
};
/*
* This structure describes devices connected to a SCSI interface
* and is partially initialized in "ioconf.c" by the 'config' program.
*/
struct pmax_scsi_device {
struct pmax_driver *sd_driver; /* SCSI device driver routines */
struct pmax_driver *sd_cdriver; /* SCSI interface driver routines */
int sd_unit; /* device unit number */
int sd_ctlr; /* SCSI interface number */
int sd_drive; /* SCSI address number */
int sd_slave; /* LUN if device has multiple units */
int sd_flags; /* flags */
int sd_alive; /* true if init routine succeeded */
};
/* Define special unit types used by the config program */
#define QUES -1 /* -1 means '?' */
#define UNKNOWN -2 /* -2 means not set yet */
/*
* This structure contains information that a SCSI interface controller
* needs to execute a SCSI command.
*/
typedef struct ScsiCmd {
struct pmax_scsi_device *sd; /* device requesting the command */
int unit; /* unit number passed to device done routine */
int flags; /* control flags for this command (see below) */
int buflen; /* length of the data buffer in bytes */
char *buf; /* pointer to data buffer for this command */
int cmdlen; /* length of data in cmdbuf */
u_char *cmd; /* buffer for the SCSI command */
int error; /* compatibility hack for new scsi */
} ScsiCmd;
/*
* Define flags for controlling the SCSI command.
*
* SCSICMD_DATA_TO_DEVICE
* TRUE -> data is to be transferred to the device.
* FALSE -> data is to be transferred from the device.
* meaningless if buflen is 0.
* SCSICMD_USE_SYNC
* Attempt to negotiate for a synchronous data transfer.
*/
#define SCSICMD_DATA_TO_DEVICE 0x01
#define SCSICMD_USE_SYNC 0x02
#ifdef _KERNEL
extern struct pmax_ctlr pmax_cinit[];
extern struct pmax_scsi_device scsi_dinit[];
/*
* Old-style pmax driver glue:
* Callbacks to add known a controller, and to configure all slaves on
* all known controllers.
*/
void pmax_add_scsi __P((struct pmax_driver *dp, int unit));
void configure_scsi __P((void));
#endif /* _KERNEL */
|
