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_memio.h>
44 #include <machine/bus_pio.h>
45 #include <machine/bus.h>
50 #include <machine/md_var.h>
52 #include <geom/geom_disk.h>
54 #include <dev/ida/idareg.h>
55 #include <dev/ida/idavar.h>
58 static int idad_probe(device_t dev);
59 static int idad_attach(device_t dev);
60 static int idad_detach(device_t dev);
62 static d_strategy_t idad_strategy;
63 static dumper_t idad_dump;
65 static devclass_t idad_devclass;
67 static device_method_t idad_methods[] = {
68 DEVMETHOD(device_probe, idad_probe),
69 DEVMETHOD(device_attach, idad_attach),
70 DEVMETHOD(device_detach, idad_detach),
74 static driver_t idad_driver = {
77 sizeof(struct idad_softc)
80 DRIVER_MODULE(idad, ida, idad_driver, idad_devclass, 0, 0);
83 * Read/write routine for a buffer. Finds the proper unit, range checks
84 * arguments, and schedules the transfer. Does not wait for the transfer
85 * to complete. Multi-page transfers are supported. All I/O requests must
86 * be a multiple of a sector in length.
89 idad_strategy(struct bio *bp)
91 struct idad_softc *drv;
94 drv = bp->bio_disk->d_drv1;
96 bp->bio_error = EINVAL;
101 * software write protect check
103 if (drv->flags & DRV_WRITEPROT && (bp->bio_cmd == BIO_WRITE)) {
104 bp->bio_error = EROFS;
108 bp->bio_driver1 = drv;
110 ida_submit_buf(drv->controller, bp);
115 bp->bio_flags |= BIO_ERROR;
118 * Correctly set the buf to indicate a completed transfer
120 bp->bio_resid = bp->bio_bcount;
126 idad_dump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
129 struct idad_softc *drv;
138 drv->controller->flags &= ~IDA_INTERRUPTS;
141 error = ida_command(drv->controller, CMD_WRITE, virtual,
142 length, drv->drive, offset / DEV_BSIZE, DMA_DATA_OUT);
144 drv->controller->flags |= IDA_INTERRUPTS;
149 idad_intr(struct bio *bp)
151 struct idad_softc *drv;
153 drv = bp->bio_disk->d_drv1;
155 if (bp->bio_flags & BIO_ERROR)
164 idad_probe(device_t dev)
167 device_set_desc(dev, "Compaq Logical Drive");
172 idad_attach(device_t dev)
174 struct ida_drive_info dinfo;
175 struct idad_softc *drv;
179 drv = (struct idad_softc *)device_get_softc(dev);
180 parent = device_get_parent(dev);
182 drv->controller = (struct ida_softc *)device_get_softc(parent);
183 drv->unit = device_get_unit(dev);
184 drv->drive = drv->controller->num_drives;
185 drv->controller->num_drives++;
187 error = ida_command(drv->controller, CMD_GET_LOG_DRV_INFO,
188 &dinfo, sizeof(dinfo), drv->drive, 0, DMA_DATA_IN);
190 device_printf(dev, "CMD_GET_LOG_DRV_INFO failed\n");
194 drv->cylinders = dinfo.dp.ncylinders;
195 drv->heads = dinfo.dp.nheads;
196 drv->sectors = dinfo.dp.nsectors;
197 drv->secsize = dinfo.secsize == 0 ? 512 : dinfo.secsize;
198 drv->secperunit = dinfo.secperunit;
201 * other initialization
203 device_printf(dev, "%uMB (%u sectors), blocksize=%d\n",
204 drv->secperunit / ((1024 * 1024) / drv->secsize),
205 drv->secperunit, drv->secsize);
207 drv->disk = disk_alloc();
208 drv->disk->d_strategy = idad_strategy;
209 drv->disk->d_name = "idad";
210 drv->disk->d_dump = idad_dump;
211 drv->disk->d_sectorsize = drv->secsize;
212 drv->disk->d_mediasize = (off_t)drv->secperunit * drv->secsize;
213 drv->disk->d_fwsectors = drv->sectors;
214 drv->disk->d_fwheads = drv->heads;
215 drv->disk->d_drv1 = drv;
216 drv->disk->d_maxsize = DFLTPHYS; /* XXX guess? */
217 drv->disk->d_unit = drv->unit;
218 drv->disk->d_flags = DISKFLAG_NEEDSGIANT;
219 disk_create(drv->disk, DISK_VERSION);
225 idad_detach(device_t dev)
227 struct idad_softc *drv;
229 drv = (struct idad_softc *)device_get_softc(dev);
230 disk_destroy(drv->disk);