FreeBSD/Linux Kernel Cross Reference
sys/dev/ips/ips_disk.c
1 /*-
2 * Copyright (c) 2002 Adaptec Inc.
3 * All rights reserved.
4 *
5 * Written by: David Jeffery
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: releng/5.1/sys/dev/ips/ips_disk.c 114902 2003-05-11 06:36:49Z scottl $
29 */
30
31
32 #include <dev/ips/ips.h>
33 #include <dev/ips/ips_disk.h>
34 #include <sys/stat.h>
35
36 static int ipsd_probe(device_t dev);
37 static int ipsd_attach(device_t dev);
38 static int ipsd_detach(device_t dev);
39
40 static disk_open_t ipsd_open;
41 static disk_close_t ipsd_close;
42 static disk_strategy_t ipsd_strategy;
43
44 static device_method_t ipsd_methods[] = {
45 DEVMETHOD(device_probe, ipsd_probe),
46 DEVMETHOD(device_attach, ipsd_attach),
47 DEVMETHOD(device_detach, ipsd_detach),
48 { 0, 0 }
49 };
50
51
52 static driver_t ipsd_driver = {
53 "ipsd",
54 ipsd_methods,
55 sizeof(ipsdisk_softc_t)
56 };
57
58 static devclass_t ipsd_devclass;
59 DRIVER_MODULE(ipsd, ips, ipsd_driver, ipsd_devclass, 0, 0);
60
61 /* handle opening of disk device. It must set up all
62 information about the geometry and size of the disk */
63 static int ipsd_open(struct disk *dp)
64 {
65 ipsdisk_softc_t *dsc = dp->d_drv1;
66
67 dsc->state |= IPS_DEV_OPEN;
68 DEVICE_PRINTF(2, dsc->dev, "I'm open\n");
69 return 0;
70 }
71
72 static int ipsd_close(struct disk *dp)
73 {
74 ipsdisk_softc_t *dsc = dp->d_drv1;
75 dsc->state &= ~IPS_DEV_OPEN;
76 DEVICE_PRINTF(2, dsc->dev, "I'm closed for the day\n");
77 return 0;
78 }
79
80 /* ipsd_finish is called to clean up and return a completed IO request */
81 void ipsd_finish(struct bio *iobuf)
82 {
83 if (iobuf->bio_flags & BIO_ERROR) {
84 ipsdisk_softc_t *dsc;
85 dsc = iobuf->bio_disk->d_drv1;
86 device_printf(dsc->dev, "iobuf error %d\n", iobuf->bio_error);
87 } else
88 iobuf->bio_resid = 0;
89
90 biodone(iobuf);
91 }
92
93
94 static void ipsd_strategy(struct bio *iobuf)
95 {
96 ipsdisk_softc_t *dsc;
97
98 dsc = iobuf->bio_disk->d_drv1;
99 DEVICE_PRINTF(8,dsc->dev,"in strategy\n");
100 (uint32_t)iobuf->bio_driver1 = dsc->sc->drives[dsc->disk_number].drivenum;
101 ips_start_io_request(dsc->sc, iobuf);
102 }
103
104 static int ipsd_probe(device_t dev)
105 {
106 DEVICE_PRINTF(2,dev, "in probe\n");
107 device_set_desc(dev, "Logical Drive");
108 return 0;
109 }
110
111 static int ipsd_attach(device_t dev)
112 {
113 device_t adapter;
114 ipsdisk_softc_t *dsc;
115 u_int totalsectors;
116
117 DEVICE_PRINTF(2,dev, "in attach\n");
118
119 dsc = (ipsdisk_softc_t *)device_get_softc(dev);
120 bzero(dsc, sizeof(ipsdisk_softc_t));
121 adapter = device_get_parent(dev);
122 dsc->dev = dev;
123 dsc->sc = device_get_softc(adapter);
124 dsc->unit = device_get_unit(dev);
125 dsc->disk_number = (int) device_get_ivars(dev);
126 dsc->ipsd_disk.d_drv1 = dsc;
127 dsc->ipsd_disk.d_name = "ipsd";
128 dsc->ipsd_disk.d_maxsize = IPS_MAX_IO_SIZE;
129 dsc->ipsd_disk.d_open = ipsd_open;
130 dsc->ipsd_disk.d_close = ipsd_close;
131 dsc->ipsd_disk.d_strategy = ipsd_strategy;
132
133 totalsectors = dsc->sc->drives[dsc->disk_number].sector_count;
134 if ((totalsectors > 0x400000) &&
135 ((dsc->sc->adapter_info.miscflags & 0x8) == 0)) {
136 dsc->ipsd_disk.d_fwheads = IPS_NORM_HEADS;
137 dsc->ipsd_disk.d_fwsectors = IPS_NORM_SECTORS;
138 } else {
139 dsc->ipsd_disk.d_fwheads = IPS_COMP_HEADS;
140 dsc->ipsd_disk.d_fwsectors = IPS_COMP_SECTORS;
141 }
142 dsc->ipsd_disk.d_sectorsize = IPS_BLKSIZE;
143 dsc->ipsd_disk.d_mediasize = totalsectors * IPS_BLKSIZE;
144 disk_create(dsc->unit, &dsc->ipsd_disk, 0, NULL, NULL);
145
146 device_printf(dev, "Logical Drive (%dMB)\n",
147 dsc->sc->drives[dsc->disk_number].sector_count >> 11);
148 return 0;
149 }
150
151 static int ipsd_detach(device_t dev)
152 {
153 ipsdisk_softc_t *dsc;
154
155 DEVICE_PRINTF(2, dev,"in detach\n");
156 dsc = (ipsdisk_softc_t *)device_get_softc(dev);
157 if(dsc->state & IPS_DEV_OPEN)
158 return (EBUSY);
159 disk_destroy(&dsc->ipsd_disk);
160 return 0;
161 }
162
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