2 * Copyright (c) 1999,2000 Jonathan Lemon
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
30 * Disk driver for Compaq SMART RAID adapters.
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
43 #include <machine/bus.h>
48 #include <machine/md_var.h>
50 #include <geom/geom_disk.h>
52 #include <dev/ida/idareg.h>
53 #include <dev/ida/idavar.h>
56 static int idad_probe(device_t dev);
57 static int idad_attach(device_t dev);
58 static int idad_detach(device_t dev);
60 static d_strategy_t idad_strategy;
61 static dumper_t idad_dump;
63 static devclass_t idad_devclass;
65 static device_method_t idad_methods[] = {
66 DEVMETHOD(device_probe, idad_probe),
67 DEVMETHOD(device_attach, idad_attach),
68 DEVMETHOD(device_detach, idad_detach),
72 static driver_t idad_driver = {
75 sizeof(struct idad_softc)
78 DRIVER_MODULE(idad, ida, idad_driver, idad_devclass, 0, 0);
81 * Read/write routine for a buffer. Finds the proper unit, range checks
82 * arguments, and schedules the transfer. Does not wait for the transfer
83 * to complete. Multi-page transfers are supported. All I/O requests must
84 * be a multiple of a sector in length.
87 idad_strategy(struct bio *bp)
89 struct idad_softc *drv;
91 drv = bp->bio_disk->d_drv1;
93 bp->bio_error = EINVAL;
98 * software write protect check
100 if (drv->flags & DRV_WRITEPROT && (bp->bio_cmd == BIO_WRITE)) {
101 bp->bio_error = EROFS;
105 bp->bio_driver1 = drv;
106 ida_submit_buf(drv->controller, bp);
110 bp->bio_flags |= BIO_ERROR;
113 * Correctly set the buf to indicate a completed transfer
115 bp->bio_resid = bp->bio_bcount;
121 idad_dump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
124 struct idad_softc *drv;
133 drv->controller->flags &= ~IDA_INTERRUPTS;
136 error = ida_command(drv->controller, CMD_WRITE, virtual,
137 length, drv->drive, offset / DEV_BSIZE, DMA_DATA_OUT);
139 drv->controller->flags |= IDA_INTERRUPTS;
144 idad_intr(struct bio *bp)
146 struct idad_softc *drv;
148 drv = bp->bio_disk->d_drv1;
150 if (bp->bio_flags & BIO_ERROR)
159 idad_probe(device_t dev)
162 device_set_desc(dev, "Compaq Logical Drive");
167 idad_attach(device_t dev)
169 struct ida_drive_info dinfo;
170 struct idad_softc *drv;
174 drv = (struct idad_softc *)device_get_softc(dev);
175 parent = device_get_parent(dev);
177 drv->controller = (struct ida_softc *)device_get_softc(parent);
178 drv->unit = device_get_unit(dev);
179 drv->drive = (intptr_t)device_get_ivars(dev);
181 mtx_lock(&drv->controller->lock);
182 error = ida_command(drv->controller, CMD_GET_LOG_DRV_INFO,
183 &dinfo, sizeof(dinfo), drv->drive, 0, DMA_DATA_IN);
184 mtx_unlock(&drv->controller->lock);
186 device_printf(dev, "CMD_GET_LOG_DRV_INFO failed\n");
190 drv->cylinders = dinfo.dp.ncylinders;
191 drv->heads = dinfo.dp.nheads;
192 drv->sectors = dinfo.dp.nsectors;
193 drv->secsize = dinfo.secsize == 0 ? 512 : dinfo.secsize;
194 drv->secperunit = dinfo.secperunit;
197 * other initialization
199 device_printf(dev, "%uMB (%u sectors), blocksize=%d\n",
200 drv->secperunit / ((1024 * 1024) / drv->secsize),
201 drv->secperunit, drv->secsize);
203 drv->disk = disk_alloc();
204 drv->disk->d_strategy = idad_strategy;
205 drv->disk->d_name = "idad";
206 drv->disk->d_dump = idad_dump;
207 drv->disk->d_sectorsize = drv->secsize;
208 drv->disk->d_mediasize = (off_t)drv->secperunit * drv->secsize;
209 drv->disk->d_fwsectors = drv->sectors;
210 drv->disk->d_fwheads = drv->heads;
211 drv->disk->d_drv1 = drv;
212 drv->disk->d_maxsize = DFLTPHYS; /* XXX guess? */
213 drv->disk->d_unit = drv->unit;
214 disk_create(drv->disk, DISK_VERSION);
220 idad_detach(device_t dev)
222 struct idad_softc *drv;
224 drv = (struct idad_softc *)device_get_softc(dev);
225 disk_destroy(drv->disk);