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
138
139
140
141
142
143
144
145
146
147
148
149
|
/* $OpenBSD: sd_atapi.c,v 1.5 2005/04/16 16:41:46 krw Exp $ */
/* $NetBSD: sd_atapi.c,v 1.3 1998/08/31 22:28:07 cgd Exp $ */
/*
* Copyright 1998
* Digital Equipment Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and conditions.
* Subject to these conditions, you may download, copy, install,
* use, modify and distribute this software in source and/or binary
* form. No title or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions as
* they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or logo of
* Digital Equipment Corporation. Neither the "Digital Equipment
* Corporation" name nor any trademark or logo of Digital Equipment
* Corporation may be used to endorse or promote products derived
* from this software without the prior written permission of
* Digital Equipment Corporation.
*
* 3) This software is provided "AS-IS" and any express or implied
* warranties, including but not limited to, any implied warranties
* of merchantability, fitness for a particular purpose, or
* non-infringement are disclaimed. In no event shall DIGITAL be
* liable for any damages whatsoever, and in particular, DIGITAL
* shall not be liable for special, indirect, consequential, or
* incidental damages or damages for lost profits, loss of
* revenue or loss of use, whether such damages arise in contract,
* negligence, tort, under statute, in equity, at law or otherwise,
* even if advised of the possibility of such damage.
*/
/*
* ATAPI disk attachment for the 'sd' driver.
*
* Chris Demetriou, January 10, 1998.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/buf.h>
#include <sys/malloc.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/disk.h>
#include <sys/conf.h>
#include <scsi/scsi_all.h>
#include <scsi/scsi_disk.h>
#include <scsi/scsiconf.h>
#include <scsi/atapi_all.h>
#include <scsi/atapi_disk.h>
#include <scsi/sdvar.h>
static int sd_atapibus_get_parms(struct sd_softc *,
struct disk_parms *, int);
const struct sd_ops sd_atapibus_ops = {
sd_atapibus_get_parms,
};
static int
sd_atapibus_get_parms(sd, dp, flags)
struct sd_softc *sd;
struct disk_parms *dp;
int flags;
{
struct atapi_read_format_capacities scsi_cmd;
struct atapi_capacity_descriptor *descp;
struct atapi_sd_mode_data sense_data;
char capacity_data[ATAPI_CAP_DESC_SIZE(1)];
u_int16_t rpm;
int error;
bzero(&scsi_cmd, sizeof scsi_cmd);
scsi_cmd.opcode = ATAPI_READ_FORMAT_CAPACITIES;
_lto2b(ATAPI_CAP_DESC_SIZE(1), scsi_cmd.length);
error = scsi_scsi_cmd(sd->sc_link,
(struct scsi_generic *)&scsi_cmd, sizeof(scsi_cmd),
(void *)capacity_data, ATAPI_CAP_DESC_SIZE(1), SDRETRIES, 20000,
NULL, flags | SCSI_DATA_IN);
SC_DEBUG(sd->sc_link, SDEV_DB2,
("sd_atapibus_get_parms: read format capacities error=%d\n",
error));
if (error != 0)
return (SDGP_RESULT_OFFLINE);
descp = (struct atapi_capacity_descriptor *)
&capacity_data[ATAPI_CAP_DESC_OFFSET_DESC(0)];
switch (descp->byte5 & ATAPI_CAP_DESC_CODE_MASK) {
case ATAPI_CAP_DESC_CODE_UNFORMATTED:
return SDGP_RESULT_UNFORMATTED;
case ATAPI_CAP_DESC_CODE_FORMATTED:
break;
case ATAPI_CAP_DESC_CODE_NONE:
return SDGP_RESULT_OFFLINE;
default:
#ifdef DIAGNOSTIC
printf("%s: strange capacity descriptor byte5 0x%x\n",
sd->sc_dev.dv_xname, (u_int)descp->byte5);
#endif
break;
}
/*
* Try to determine disk size, block size and geometry. If disk size
* (in sectors) can be determined, then fake the rest if necessary.
*
* XXX Rigid geometry page?
*/
dp->rot_rate = 3600;
dp->blksize = _3btol(descp->blklen);
if (dp->blksize == 0)
dp->blksize = 512;
dp->disksize = _4btol(descp->nblks);
if (dp->disksize == 0)
return (SDGP_RESULT_OFFLINE);
error = atapi_mode_sense(sd->sc_link, ATAPI_FLEX_GEOMETRY_PAGE,
(struct scsi_mode_header_big *)&sense_data, FLEXGEOMETRYPAGESIZE,
flags, SDRETRIES, 20000);
SC_DEBUG(sd->sc_link, SDEV_DB2,
("sd_atapibus_get_parms: mode sense (flex) error=%d\n", error));
if (error == 0) {
dp->heads = sense_data.pages.flex_geometry.nheads;
dp->sectors = sense_data.pages.flex_geometry.ph_sec_tr;
dp->cyls = _2btol(sense_data.pages.flex_geometry.ncyl);
rpm = _2btol(sense_data.pages.flex_geometry.rot_rate);
if (rpm)
dp->rot_rate = rpm;
} else {
dp->heads = 64;
dp->sectors = 32;
dp->cyls = dp->disksize / (64 * 32);
}
return (SDGP_RESULT_OK);
}
|
