1/*-
2 * Copyright (c) 1999,2000 Jonathan Lemon
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
|
26 * $FreeBSD: head/sys/dev/ida/ida_disk.c 124539 2004-01-15 04:05:47Z mdodd $
|
| 26 * $FreeBSD: head/sys/dev/ida/ida_disk.c 125975 2004-02-18 21:36:53Z phk $ |
27 */
28
29/*
30 * Disk driver for Compaq SMART RAID adapters.
31 */
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/kernel.h>
36
37#include <sys/bio.h>
38#include <sys/bus.h>
39#include <sys/conf.h>
40#include <sys/cons.h>
41
42#include <machine/bus_memio.h>
43#include <machine/bus_pio.h>
44#include <machine/bus.h>
45#include <sys/rman.h>
46
47#include <vm/vm.h>
48#include <vm/pmap.h>
49#include <machine/md_var.h>
50
51#include <geom/geom_disk.h>
52
53#include <dev/ida/idareg.h>
54#include <dev/ida/idavar.h>
55
56/* prototypes */
57static int idad_probe(device_t dev);
58static int idad_attach(device_t dev);
59static int idad_detach(device_t dev);
60
61static d_strategy_t idad_strategy;
62static dumper_t idad_dump;
63
64static devclass_t idad_devclass;
65
66static device_method_t idad_methods[] = {
67 DEVMETHOD(device_probe, idad_probe),
68 DEVMETHOD(device_attach, idad_attach),
69 DEVMETHOD(device_detach, idad_detach),
70 { 0, 0 }
71};
72
73static driver_t idad_driver = {
74 "idad",
75 idad_methods,
76 sizeof(struct idad_softc)
77};
78
79DRIVER_MODULE(idad, ida, idad_driver, idad_devclass, 0, 0);
80
81/*
82 * Read/write routine for a buffer. Finds the proper unit, range checks
83 * arguments, and schedules the transfer. Does not wait for the transfer
84 * to complete. Multi-page transfers are supported. All I/O requests must
85 * be a multiple of a sector in length.
86 */
87static void
88idad_strategy(struct bio *bp)
89{
90 struct idad_softc *drv;
91 int s;
92
93 drv = bp->bio_disk->d_drv1;
94 if (drv == NULL) {
95 bp->bio_error = EINVAL;
96 goto bad;
97 }
98
99 /*
100 * software write protect check
101 */
102 if (drv->flags & DRV_WRITEPROT && (bp->bio_cmd == BIO_WRITE)) {
103 bp->bio_error = EROFS;
104 goto bad;
105 }
106
107 bp->bio_driver1 = drv;
108 s = splbio();
109 ida_submit_buf(drv->controller, bp);
110 splx(s);
111 return;
112
113bad:
114 bp->bio_flags |= BIO_ERROR;
115
116 /*
117 * Correctly set the buf to indicate a completed transfer
118 */
119 bp->bio_resid = bp->bio_bcount;
120 biodone(bp);
121 return;
122}
123
124static int
125idad_dump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
126{
127
128 struct idad_softc *drv;
129 int error = 0;
130 struct disk *dp;
131
132 dp = arg;
133 drv = dp->d_drv1;
134 if (drv == NULL)
135 return (ENXIO);
136
137 drv->controller->flags &= ~IDA_INTERRUPTS;
138
139 if (length > 0) {
140 error = ida_command(drv->controller, CMD_WRITE, virtual,
141 length, drv->drive, offset / DEV_BSIZE, DMA_DATA_OUT);
142 }
143 drv->controller->flags |= IDA_INTERRUPTS;
144 return (error);
145}
146
147void
148idad_intr(struct bio *bp)
149{
150 struct idad_softc *drv;
151
152 drv = bp->bio_disk->d_drv1;
153
154 if (bp->bio_flags & BIO_ERROR)
155 bp->bio_error = EIO;
156 else
157 bp->bio_resid = 0;
158
159 biodone(bp);
160}
161
162static int
163idad_probe(device_t dev)
164{
165
166 device_set_desc(dev, "Compaq Logical Drive");
167 return (0);
168}
169
170static int
171idad_attach(device_t dev)
172{
173 struct ida_drive_info dinfo;
174 struct idad_softc *drv;
175 device_t parent;
176 int error;
177
178 drv = (struct idad_softc *)device_get_softc(dev);
179 parent = device_get_parent(dev);
180 drv->dev = dev;
181 drv->controller = (struct ida_softc *)device_get_softc(parent);
182 drv->unit = device_get_unit(dev);
183 drv->drive = drv->controller->num_drives;
184 drv->controller->num_drives++;
185
186 error = ida_command(drv->controller, CMD_GET_LOG_DRV_INFO,
187 &dinfo, sizeof(dinfo), drv->drive, 0, DMA_DATA_IN);
188 if (error) {
189 device_printf(dev, "CMD_GET_LOG_DRV_INFO failed\n");
190 return (ENXIO);
191 }
192
193 drv->cylinders = dinfo.dp.ncylinders;
194 drv->heads = dinfo.dp.nheads;
195 drv->sectors = dinfo.dp.nsectors;
196 drv->secsize = dinfo.secsize == 0 ? 512 : dinfo.secsize;
197 drv->secperunit = dinfo.secperunit;
198
199 /* XXX
200 * other initialization
201 */
202 device_printf(dev, "%uMB (%u sectors), blocksize=%d\n",
203 drv->secperunit / ((1024 * 1024) / drv->secsize),
204 drv->secperunit, drv->secsize);
205
|
206 drv->disk.d_strategy = idad_strategy;
207 drv->disk.d_name = "idad";
208 drv->disk.d_dump = idad_dump;
209 drv->disk.d_sectorsize = drv->secsize;
210 drv->disk.d_mediasize = (off_t)drv->secperunit * drv->secsize;
211 drv->disk.d_fwsectors = drv->sectors;
212 drv->disk.d_fwheads = drv->heads;
213 drv->disk.d_drv1 = drv;
214 drv->disk.d_maxsize = DFLTPHYS; /* XXX guess? */
215 disk_create(drv->unit, &drv->disk, 0, NULL, NULL);
|
206 drv->disk = disk_alloc();
207 drv->disk->d_strategy = idad_strategy;
208 drv->disk->d_name = "idad";
209 drv->disk->d_dump = idad_dump;
210 drv->disk->d_sectorsize = drv->secsize;
211 drv->disk->d_mediasize = (off_t)drv->secperunit * drv->secsize;
212 drv->disk->d_fwsectors = drv->sectors;
213 drv->disk->d_fwheads = drv->heads;
214 drv->disk->d_drv1 = drv;
215 drv->disk->d_maxsize = DFLTPHYS; /* XXX guess? */
216 drv->disk->d_unit = drv->unit;
217 drv->disk->d_flags = DISKFLAG_NEEDSGIANT;
218 disk_create(drv->disk, DISK_VERSION); |
219
220 return (0);
221}
222
223static int
224idad_detach(device_t dev)
225{
226 struct idad_softc *drv;
227
228 drv = (struct idad_softc *)device_get_softc(dev);
|
226 disk_destroy(&drv->disk);
|
| 229 disk_destroy(drv->disk); |
230 return (0);
231}
|