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
|
/* $OpenBSD: atascsi.c,v 1.1 2007/02/19 11:44:24 dlg Exp $ */
/*
* Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/queue.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <dev/ata/atascsi.h>
struct atascsi {
struct device *ab_dev;
void *ab_cookie;
int *ab_ports;
struct atascsi_methods *ab_methods;
struct scsi_adapter ab_switch;
struct scsi_link ab_link;
struct scsibus_softc *ab_scsibus;
};
int atascsi_probe(struct atascsi *, int);
int atascsi_cmd(struct scsi_xfer *);
/* template */
struct scsi_adapter atascsi_switch = {
atascsi_cmd, /* scsi_cmd */
minphys, /* scsi_minphys */
NULL,
NULL,
NULL /* ioctl */
};
struct scsi_device atascsi_device = {
NULL, NULL, NULL, NULL
};
struct atascsi *
atascsi_attach(struct device *self, struct atascsi_attach_args *aaa)
{
struct scsibus_attach_args saa;
struct atascsi *ab;
int i;
ab = malloc(sizeof(struct atascsi), M_DEVBUF, M_WAITOK);
bzero(ab, sizeof(struct atascsi));
ab->ab_dev = self;
ab->ab_cookie = aaa->aaa_cookie;
ab->ab_methods = aaa->aaa_methods;
/* copy from template and modify for ourselves */
ab->ab_switch = atascsi_switch;
ab->ab_switch.scsi_minphys = aaa->aaa_minphys;
/* fill in our scsi_link */
ab->ab_link.device = &atascsi_device;
ab->ab_link.adapter = &ab->ab_switch;
ab->ab_link.adapter_softc = ab;
ab->ab_link.adapter_buswidth = aaa->aaa_nports;
ab->ab_link.luns = 1; /* XXX port multiplier as luns */
ab->ab_link.adapter_target = aaa->aaa_nports;
ab->ab_link.openings = aaa->aaa_ncmds;
ab->ab_ports = malloc(sizeof(int) * aaa->aaa_nports,
M_DEVBUF, M_WAITOK);
bzero(ab->ab_ports, sizeof(int) * aaa->aaa_nports);
/* fill in the port array with the type of devices there */
for (i = 0; i < ab->ab_link.adapter_buswidth; i++)
atascsi_probe(ab, i);
bzero(&saa, sizeof(saa));
saa.saa_sc_link = &ab->ab_link;
/* stash the scsibus so we can do hotplug on it */
ab->ab_scsibus = (struct scsibus_softc *)config_found(self, &saa,
scsiprint);
return (ab);
}
int
atascsi_detach(struct atascsi *ab)
{
return (0);
}
int
atascsi_probe(struct atascsi *ab, int port)
{
if (port > ab->ab_link.adapter_buswidth)
return (ENXIO);
ab->ab_ports[port] = ab->ab_methods->probe(ab->ab_cookie, port);
return (0);
}
int
atascsi_cmd(struct scsi_xfer *xs)
{
int s;
xs->error = XS_DRIVER_STUFFUP;
s = splbio();
scsi_done(xs);
splx(s);
return (COMPLETE);
}
|