tmc18c30_isa.c revision 67468
1/* $FreeBSD: head/sys/dev/stg/tmc18c30_isa.c 67468 2000-10-23 12:55:51Z non $ */ 2/* $NecBSD: tmc18c30_pisa.c,v 1.22 1998/11/26 01:59:21 honda Exp $ */ 3/* $NetBSD$ */ 4 5/* 6 * [Ported for FreeBSD] 7 * Copyright (c) 2000 8 * Noriaki Mitsunaga, Mitsuru Iwasaki and Takanori Watanabe. 9 * All rights reserved. 10 * [NetBSD for NEC PC-98 series] 11 * Copyright (c) 1996, 1997, 1998 12 * NetBSD/pc98 porting staff. All rights reserved. 13 * Copyright (c) 1996, 1997, 1998 14 * Naofumi HONDA. All rights reserved. 15 * Copyright (c) 1996, 1997, 1998 16 * Kouichi Matsuda. All rights reserved. 17 * 18 * Redistribution and use in source and binary forms, with or without 19 * modification, are permitted provided that the following conditions 20 * are met: 21 * 1. Redistributions of source code must retain the above copyright 22 * notice, this list of conditions and the following disclaimer. 23 * 2. Redistributions in binary form must reproduce the above copyright 24 * notice, this list of conditions and the following disclaimer in the 25 * documentation and/or other materials provided with the distribution. 26 * 3. The name of the author may not be used to endorse or promote products 27 * derived from this software without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 30 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 31 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 32 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 38 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 39 * POSSIBILITY OF SUCH DAMAGE. 40 */ 41 42#include <sys/param.h> 43#include <sys/systm.h> 44#include <sys/kernel.h> 45#include <sys/module.h> 46#include <sys/bus.h> 47#include <sys/disklabel.h> 48#if defined(__FreeBSD__) && __FreeBSD_version >= 500001 49#include <sys/bio.h> 50#endif 51#include <sys/buf.h> 52#include <sys/queue.h> 53#include <sys/malloc.h> 54#include <sys/errno.h> 55 56#include <vm/vm.h> 57 58#include <machine/bus_pio.h> 59#include <machine/bus.h> 60#include <machine/resource.h> 61#include <sys/rman.h> 62 63#include <isa/isavar.h> 64 65#include <machine/dvcfg.h> 66 67#include <sys/device_port.h> 68 69#include <cam/scsi/scsi_low.h> 70#include <isa/isa_common.h> 71#include <cam/scsi/scsi_low_pisa.h> 72 73#include <dev/stg/tmc18c30reg.h> 74#include <dev/stg/tmc18c30var.h> 75 76#define STG_HOSTID 7 77 78#include <sys/kernel.h> 79#include <sys/module.h> 80#include <sys/select.h> 81 82static int stgprobe(device_t devi); 83static int stgattach(device_t devi); 84 85static void stg_isa_unload __P((device_t)); 86 87static void 88stg_isa_intr(void * arg) 89{ 90 stgintr(arg); 91} 92 93static void 94stg_release_resource(device_t dev) 95{ 96 struct stg_softc *sc = device_get_softc(dev); 97 98 if (sc->stg_intrhand) { 99 bus_teardown_intr(dev, sc->irq_res, sc->stg_intrhand); 100 } 101 102 if (sc->port_res) { 103 bus_release_resource(dev, SYS_RES_IOPORT, 104 sc->port_rid, sc->port_res); 105 } 106 107 if (sc->irq_res) { 108 bus_release_resource(dev, SYS_RES_IRQ, 109 sc->irq_rid, sc->irq_res); 110 } 111 112 if (sc->mem_res) { 113 bus_release_resource(dev, SYS_RES_MEMORY, 114 sc->mem_rid, sc->mem_res); 115 } 116} 117 118static int 119stg_alloc_resource(device_t dev) 120{ 121 struct stg_softc *sc = device_get_softc(dev); 122 u_long maddr, msize; 123 int error; 124 125 sc->port_rid = 0; 126 sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->port_rid, 127 0, ~0, STGIOSZ, RF_ACTIVE); 128 if (sc->port_res == NULL) { 129 stg_release_resource(dev); 130 return(ENOMEM); 131 } 132 133 sc->irq_rid = 0; 134 sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid, 135 0, ~0, 1, RF_ACTIVE); 136 if (sc->irq_res == NULL) { 137 stg_release_resource(dev); 138 return(ENOMEM); 139 } 140 141 error = bus_get_resource(dev, SYS_RES_MEMORY, 0, &maddr, &msize); 142 if (error) { 143 return(0); /* XXX */ 144 } 145 146 /* no need to allocate memory if not configured */ 147 if (maddr == 0 || msize == 0) { 148 return(0); 149 } 150 151 sc->mem_rid = 0; 152 sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid, 153 0, ~0, msize, RF_ACTIVE); 154 if (sc->mem_res == NULL) { 155 stg_release_resource(dev); 156 return(ENOMEM); 157 } 158 159 return(0); 160} 161 162static int 163stg_isa_probe(device_t dev) 164{ 165 struct stg_softc *sc = device_get_softc(dev); 166 int error; 167 168 bzero(sc, sizeof(struct stg_softc)); 169 170 error = stg_alloc_resource(dev); 171 if (error) { 172 return(error); 173 } 174 175 if (stgprobe(dev) == 0) { 176 stg_release_resource(dev); 177 return(ENXIO); 178 } 179 180 stg_release_resource(dev); 181 182 return(0); 183} 184 185static int 186stg_isa_attach(device_t dev) 187{ 188 struct stg_softc *sc = device_get_softc(dev); 189 int error; 190 191 error = stg_alloc_resource(dev); 192 if (error) { 193 return(error); 194 } 195 196 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_CAM, 197 stg_isa_intr, (void *)sc, &sc->stg_intrhand); 198 if (error) { 199 stg_release_resource(dev); 200 return(error); 201 } 202 203 if (stgattach(dev) == 0) { 204 stg_release_resource(dev); 205 return(ENXIO); 206 } 207 208 return(0); 209} 210 211static void 212stg_isa_detach(device_t dev) 213{ 214 stg_isa_unload(dev); 215 stg_release_resource(dev); 216} 217 218static device_method_t stg_isa_methods[] = { 219 /* Device interface */ 220 DEVMETHOD(device_probe, stg_isa_probe), 221 DEVMETHOD(device_attach, stg_isa_attach), 222 DEVMETHOD(device_detach, stg_isa_detach), 223 224 { 0, 0 } 225}; 226 227static driver_t stg_isa_driver = { 228 "stg", 229 stg_isa_methods, 230 sizeof(struct stg_softc), 231}; 232 233static devclass_t stg_devclass; 234 235DRIVER_MODULE(stg, isa, stg_isa_driver, stg_devclass, 0, 0); 236 237static void 238stg_isa_unload(device_t devi) 239{ 240 struct stg_softc *sc = device_get_softc(devi); 241 242 printf("%s: unload\n",sc->sc_sclow.sl_xname); 243 scsi_low_deactivate((struct scsi_low_softc *)sc); 244 scsi_low_dettach(&sc->sc_sclow); 245} 246 247static int 248stgprobe(device_t devi) 249{ 250 int rv; 251 struct stg_softc *sc = device_get_softc(devi); 252 253 rv = stgprobesubr(rman_get_bustag(sc->port_res), 254 rman_get_bushandle(sc->port_res), 255 device_get_flags(devi)); 256 257 return rv; 258} 259 260static int 261stgattach(device_t devi) 262{ 263 struct stg_softc *sc; 264 struct scsi_low_softc *slp; 265 u_int32_t flags = device_get_flags(devi); 266 u_int iobase = bus_get_resource_start(devi, SYS_RES_IOPORT, 0); 267 268 char dvname[16]; 269 270 strcpy(dvname,"stg"); 271 272 273 if (iobase == 0) 274 { 275 printf("%s: no ioaddr is given\n", dvname); 276 return (0); 277 } 278 279 sc = device_get_softc(devi); 280 if (sc == NULL) { 281 return(0); 282 } 283 284 slp = &sc->sc_sclow; 285 slp->sl_dev = devi; 286 sc->sc_iot = rman_get_bustag(sc->port_res); 287 sc->sc_ioh = rman_get_bushandle(sc->port_res); 288 289 slp->sl_hostid = STG_HOSTID; 290 slp->sl_cfgflags = flags; 291 292 stgattachsubr(sc); 293 294 sc->sc_ih = stgintr; 295 296 printf("stg%d",device_get_unit(devi)); 297 return(STGIOSZ); 298} 299