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 * $FreeBSD$ 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 } 162 163