tmc18c30_isa.c revision 73280
1/* $FreeBSD: head/sys/dev/stg/tmc18c30_isa.c 73280 2001-03-01 17:09:09Z markm $ */ 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 81static int stgprobe(device_t devi); 82static int stgattach(device_t devi); 83 84static void stg_isa_unload __P((device_t)); 85 86static void 87stg_isa_intr(void * arg) 88{ 89 stgintr(arg); 90} 91 92static void 93stg_release_resource(device_t dev) 94{ 95 struct stg_softc *sc = device_get_softc(dev); 96 97 if (sc->stg_intrhand) { 98 bus_teardown_intr(dev, sc->irq_res, sc->stg_intrhand); 99 } 100 101 if (sc->port_res) { 102 bus_release_resource(dev, SYS_RES_IOPORT, 103 sc->port_rid, sc->port_res); 104 } 105 106 if (sc->irq_res) { 107 bus_release_resource(dev, SYS_RES_IRQ, 108 sc->irq_rid, sc->irq_res); 109 } 110 111 if (sc->mem_res) { 112 bus_release_resource(dev, SYS_RES_MEMORY, 113 sc->mem_rid, sc->mem_res); 114 } 115} 116 117static int 118stg_alloc_resource(device_t dev) 119{ 120 struct stg_softc *sc = device_get_softc(dev); 121 u_long maddr, msize; 122 int error; 123 124 sc->port_rid = 0; 125 sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->port_rid, 126 0, ~0, STGIOSZ, RF_ACTIVE); 127 if (sc->port_res == NULL) { 128 stg_release_resource(dev); 129 return(ENOMEM); 130 } 131 132 sc->irq_rid = 0; 133 sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid, 134 0, ~0, 1, RF_ACTIVE); 135 if (sc->irq_res == NULL) { 136 stg_release_resource(dev); 137 return(ENOMEM); 138 } 139 140 error = bus_get_resource(dev, SYS_RES_MEMORY, 0, &maddr, &msize); 141 if (error) { 142 return(0); /* XXX */ 143 } 144 145 /* no need to allocate memory if not configured */ 146 if (maddr == 0 || msize == 0) { 147 return(0); 148 } 149 150 sc->mem_rid = 0; 151 sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid, 152 0, ~0, msize, RF_ACTIVE); 153 if (sc->mem_res == NULL) { 154 stg_release_resource(dev); 155 return(ENOMEM); 156 } 157 158 return(0); 159} 160 161static int 162stg_isa_probe(device_t dev) 163{ 164 struct stg_softc *sc = device_get_softc(dev); 165 int error; 166 167 bzero(sc, sizeof(struct stg_softc)); 168 169 error = stg_alloc_resource(dev); 170 if (error) { 171 return(error); 172 } 173 174 if (stgprobe(dev) == 0) { 175 stg_release_resource(dev); 176 return(ENXIO); 177 } 178 179 stg_release_resource(dev); 180 181 return(0); 182} 183 184static int 185stg_isa_attach(device_t dev) 186{ 187 struct stg_softc *sc = device_get_softc(dev); 188 int error; 189 190 error = stg_alloc_resource(dev); 191 if (error) { 192 return(error); 193 } 194 195 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_CAM | INTR_ENTROPY, 196 stg_isa_intr, (void *)sc, &sc->stg_intrhand); 197 if (error) { 198 stg_release_resource(dev); 199 return(error); 200 } 201 202 if (stgattach(dev) == 0) { 203 stg_release_resource(dev); 204 return(ENXIO); 205 } 206 207 return(0); 208} 209 210static void 211stg_isa_detach(device_t dev) 212{ 213 stg_isa_unload(dev); 214 stg_release_resource(dev); 215} 216 217static device_method_t stg_isa_methods[] = { 218 /* Device interface */ 219 DEVMETHOD(device_probe, stg_isa_probe), 220 DEVMETHOD(device_attach, stg_isa_attach), 221 DEVMETHOD(device_detach, stg_isa_detach), 222 223 { 0, 0 } 224}; 225 226static driver_t stg_isa_driver = { 227 "stg", 228 stg_isa_methods, 229 sizeof(struct stg_softc), 230}; 231 232static devclass_t stg_devclass; 233 234DRIVER_MODULE(stg, isa, stg_isa_driver, stg_devclass, 0, 0); 235 236static void 237stg_isa_unload(device_t devi) 238{ 239 struct stg_softc *sc = device_get_softc(devi); 240 241 printf("%s: unload\n",sc->sc_sclow.sl_xname); 242 scsi_low_deactivate((struct scsi_low_softc *)sc); 243 scsi_low_dettach(&sc->sc_sclow); 244} 245 246static int 247stgprobe(device_t devi) 248{ 249 int rv; 250 struct stg_softc *sc = device_get_softc(devi); 251 252 rv = stgprobesubr(rman_get_bustag(sc->port_res), 253 rman_get_bushandle(sc->port_res), 254 device_get_flags(devi)); 255 256 return rv; 257} 258 259static int 260stgattach(device_t devi) 261{ 262 struct stg_softc *sc; 263 struct scsi_low_softc *slp; 264 u_int32_t flags = device_get_flags(devi); 265 u_int iobase = bus_get_resource_start(devi, SYS_RES_IOPORT, 0); 266 267 char dvname[16]; 268 269 strcpy(dvname,"stg"); 270 271 272 if (iobase == 0) 273 { 274 printf("%s: no ioaddr is given\n", dvname); 275 return (0); 276 } 277 278 sc = device_get_softc(devi); 279 if (sc == NULL) { 280 return(0); 281 } 282 283 slp = &sc->sc_sclow; 284 slp->sl_dev = devi; 285 sc->sc_iot = rman_get_bustag(sc->port_res); 286 sc->sc_ioh = rman_get_bushandle(sc->port_res); 287 288 slp->sl_hostid = STG_HOSTID; 289 slp->sl_cfgflags = flags; 290 291 stgattachsubr(sc); 292 293 sc->sc_ih = stgintr; 294 295 return(STGIOSZ); 296} 297