1 /*- 2 * Written by: David Jeffery 3 * Copyright (c) 2002 Adaptec Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <dev/ips/ips.h> 32 #include <dev/ips/ips_disk.h> 33 #include <sys/stat.h> 34 35 static int ipsd_probe(device_t dev); 36 static int ipsd_attach(device_t dev); 37 static int ipsd_detach(device_t dev); 38 39 static disk_open_t ipsd_open; 40 static disk_close_t ipsd_close; 41 static disk_strategy_t ipsd_strategy; 42 43 static device_method_t ipsd_methods[] = { 44 DEVMETHOD(device_probe, ipsd_probe), 45 DEVMETHOD(device_attach, ipsd_attach), 46 DEVMETHOD(device_detach, ipsd_detach), 47 { 0, 0 } 48 }; 49 50 51 static driver_t ipsd_driver = { 52 "ipsd", 53 ipsd_methods, 54 sizeof(ipsdisk_softc_t) 55 }; 56 57 static devclass_t ipsd_devclass; 58 DRIVER_MODULE(ipsd, ips, ipsd_driver, ipsd_devclass, 0, 0); 59 60 /* handle opening of disk device. It must set up all 61 information about the geometry and size of the disk */ 62 static int ipsd_open(struct disk *dp) 63 { 64 ipsdisk_softc_t *dsc = dp->d_drv1; 65 66 dsc->state |= IPS_DEV_OPEN; 67 DEVICE_PRINTF(2, dsc->dev, "I'm open\n"); 68 return 0; 69 } 70 71 static int ipsd_close(struct disk *dp) 72 { 73 ipsdisk_softc_t *dsc = dp->d_drv1; 74 dsc->state &= ~IPS_DEV_OPEN; 75 DEVICE_PRINTF(2, dsc->dev, "I'm closed for the day\n"); 76 return 0; 77 } 78 79 /* ipsd_finish is called to clean up and return a completed IO request */ 80 void ipsd_finish(struct bio *iobuf) 81 { 82 ipsdisk_softc_t *dsc; 83 dsc = iobuf->bio_disk->d_drv1; 84 85 if (iobuf->bio_flags & BIO_ERROR) { 86 ipsdisk_softc_t *dsc; 87 dsc = iobuf->bio_disk->d_drv1; 88 device_printf(dsc->dev, "iobuf error %d\n", iobuf->bio_error); 89 } else 90 iobuf->bio_resid = 0; 91 92 biodone(iobuf); 93 ips_start_io_request(dsc->sc); 94 } 95 96 97 static void ipsd_strategy(struct bio *iobuf) 98 { 99 ipsdisk_softc_t *dsc; 100 101 dsc = iobuf->bio_disk->d_drv1; 102 DEVICE_PRINTF(8,dsc->dev,"in strategy\n"); 103 iobuf->bio_driver1 = (void *)(uintptr_t)dsc->sc->drives[dsc->disk_number].drivenum; 104 mtx_lock(&dsc->sc->queue_mtx); 105 bioq_disksort(&dsc->sc->queue, iobuf); 106 mtx_unlock(&dsc->sc->queue_mtx); 107 ips_start_io_request(dsc->sc); 108 } 109 110 static int ipsd_probe(device_t dev) 111 { 112 DEVICE_PRINTF(2,dev, "in probe\n"); 113 device_set_desc(dev, "Logical Drive"); 114 return 0; 115 } 116 117 static int ipsd_attach(device_t dev) 118 { 119 device_t adapter; 120 ipsdisk_softc_t *dsc; 121 u_int totalsectors; 122 123 DEVICE_PRINTF(2,dev, "in attach\n"); 124 125 dsc = (ipsdisk_softc_t *)device_get_softc(dev); 126 bzero(dsc, sizeof(ipsdisk_softc_t)); 127 adapter = device_get_parent(dev); 128 dsc->dev = dev; 129 dsc->sc = device_get_softc(adapter); 130 dsc->unit = device_get_unit(dev); 131 dsc->disk_number = (uintptr_t) device_get_ivars(dev); 132 dsc->ipsd_disk = disk_alloc(); 133 dsc->ipsd_disk->d_drv1 = dsc; 134 dsc->ipsd_disk->d_name = "ipsd"; 135 dsc->ipsd_disk->d_maxsize = IPS_MAX_IO_SIZE; 136 dsc->ipsd_disk->d_open = ipsd_open; 137 dsc->ipsd_disk->d_close = ipsd_close; 138 dsc->ipsd_disk->d_strategy = ipsd_strategy; 139 140 totalsectors = dsc->sc->drives[dsc->disk_number].sector_count; 141 if ((totalsectors > 0x400000) && 142 ((dsc->sc->adapter_info.miscflags & 0x8) == 0)) { 143 dsc->ipsd_disk->d_fwheads = IPS_NORM_HEADS; 144 dsc->ipsd_disk->d_fwsectors = IPS_NORM_SECTORS; 145 } else { 146 dsc->ipsd_disk->d_fwheads = IPS_COMP_HEADS; 147 dsc->ipsd_disk->d_fwsectors = IPS_COMP_SECTORS; 148 } 149 dsc->ipsd_disk->d_sectorsize = IPS_BLKSIZE; 150 dsc->ipsd_disk->d_mediasize = (off_t)totalsectors * IPS_BLKSIZE; 151 dsc->ipsd_disk->d_unit = dsc->unit; 152 dsc->ipsd_disk->d_flags = DISKFLAG_NEEDSGIANT; 153 disk_create(dsc->ipsd_disk, DISK_VERSION); 154 155 device_printf(dev, "Logical Drive (%dMB)\n", 156 dsc->sc->drives[dsc->disk_number].sector_count >> 11); 157 return 0; 158 } 159 160 static int ipsd_detach(device_t dev) 161 { 162 ipsdisk_softc_t *dsc; 163 164 DEVICE_PRINTF(2, dev,"in detach\n"); 165 dsc = (ipsdisk_softc_t *)device_get_softc(dev); 166 if(dsc->state & IPS_DEV_OPEN) 167 return (EBUSY); 168 disk_destroy(dsc->ipsd_disk); 169 return 0; 170 } 171