sys/dev/disk/stg/tmc18c30_isa.c

   1 /*      $FreeBSD: src/sys/dev/stg/tmc18c30_isa.c,v 1.2.2.4 2001/09/04 04:45:23 non Exp $        */
   2 /*      $DragonFly: src/sys/dev/disk/stg/tmc18c30_isa.c,v 1.12 2007/05/17 21:08:49 dillon Exp $ */
   3 /*      $NecBSD: tmc18c30_pisa.c,v 1.22 1998/11/26 01:59:21 honda Exp $ */
   4 /*      $NetBSD$        */
   5
   6 /*
   7 * [Ported for FreeBSD]
   8 *  Copyright (c) 2000
   9 *      Noriaki Mitsunaga, Mitsuru Iwasaki and Takanori Watanabe.
  10 *      All rights reserved.
  11 * [NetBSD for NEC PC-98 series]
  12 *  Copyright (c) 1996, 1997, 1998
  13 *       NetBSD/pc98 porting staff. All rights reserved.
  14 *  Copyright (c) 1996, 1997, 1998
  15 *       Naofumi HONDA. All rights reserved.
  16 *  Copyright (c) 1996, 1997, 1998
  17 *       Kouichi Matsuda. All rights reserved.
  18 *
  19 *  Redistribution and use in source and binary forms, with or without
  20 *  modification, are permitted provided that the following conditions
  21 *  are met:
  22 *  1. Redistributions of source code must retain the above copyright
  23 *     notice, this list of conditions and the following disclaimer.
  24 *  2. Redistributions in binary form must reproduce the above copyright
  25 *     notice, this list of conditions and the following disclaimer in the
  26 *     documentation and/or other materials provided with the distribution.
  27 *  3. The name of the author may not be used to endorse or promote products
  28 *     derived from this software without specific prior written permission.
  29 *
  30 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  31 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  32 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  33 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  34 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  35 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  36 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  39 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  40 * POSSIBILITY OF SUCH DAMAGE.
  41 */
  42
  43 #include <sys/param.h>
  44 #include <sys/systm.h>
  45 #include <sys/kernel.h>
  46 #include <sys/module.h>
  47 #include <sys/bus.h>
  48 #include <sys/buf.h>
  49 #include <sys/queue.h>
  50 #include <sys/malloc.h>
  51 #include <sys/errno.h>
  52 #include <sys/rman.h>
  53 #include <sys/device_port.h>
  54 #include <sys/thread2.h>
  55
  56 #include <vm/vm.h>
  57
  58 #include <bus/isa/isavar.h>
  59
  60 #include <bus/cam/scsi/scsi_low.h>
  61 #include <bus/isa/isa_common.h>
  62 #include <bus/cam/scsi/scsi_low_pisa.h>
  63
  64 #include "tmc18c30reg.h"
  65 #include "tmc18c30var.h"
  66
  67 #define STG_HOSTID      7
  68
  69 #include        <sys/kernel.h>
  70 #include        <sys/module.h>
  71
  72 static  int     stgprobe(device_t devi);
  73 static  int     stgattach(device_t devi);
  74
  75 static  void    stg_isa_unload  (device_t);
  76
  77 static void
  78 stg_isa_intr(void * arg)
  79 {
  80         stgintr(arg);
  81 }
  82
  83 static void
  84 stg_release_resource(device_t dev)
  85 {
  86         struct stg_softc        *sc = device_get_softc(dev);
  87
  88         if (sc->stg_intrhand) {
  89                 bus_teardown_intr(dev, sc->irq_res, sc->stg_intrhand);
  90         }
  91
  92         if (sc->port_res) {
  93                 bus_release_resource(dev, SYS_RES_IOPORT,
  94                                      sc->port_rid, sc->port_res);
  95         }
  96
  97         if (sc->irq_res) {
  98                 bus_release_resource(dev, SYS_RES_IRQ,
  99                                      sc->irq_rid, sc->irq_res);
 100         }
 101
 102         if (sc->mem_res) {
 103                 bus_release_resource(dev, SYS_RES_MEMORY,
 104                                      sc->mem_rid, sc->mem_res);
 105         }
 106 }
 107
 108 static int
 109 stg_alloc_resource(device_t dev)
 110 {
 111         struct stg_softc        *sc = device_get_softc(dev);
 112         u_long                  maddr, msize;
 113         int                     error;
 114
 115         sc->port_rid = 0;
 116         sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->port_rid,
 117                                           0, ~0, STGIOSZ, RF_ACTIVE);
 118         if (sc->port_res == NULL) {
 119                 stg_release_resource(dev);
 120                 return(ENOMEM);
 121         }
 122
 123         sc->irq_rid = 0;
 124         sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid,
 125                                          0, ~0, 1, RF_ACTIVE);
 126         if (sc->irq_res == NULL) {
 127                 stg_release_resource(dev);
 128                 return(ENOMEM);
 129         }
 130
 131         error = bus_get_resource(dev, SYS_RES_MEMORY, 0, &maddr, &msize);
 132         if (error) {
 133                 return(0);      /* XXX */
 134         }
 135
 136         /* no need to allocate memory if not configured */
 137         if (maddr == 0 || msize == 0) {
 138                 return(0);
 139         }
 140
 141         sc->mem_rid = 0;
 142         sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid,
 143                                          0, ~0, 1, RF_ACTIVE);
 144         if (sc->mem_res == NULL) {
 145                 stg_release_resource(dev);
 146                 return(ENOMEM);
 147         }
 148
 149         return(0);
 150 }
 151
 152 static int
 153 stg_isa_probe(device_t dev)
 154 {
 155         struct stg_softc        *sc = device_get_softc(dev);
 156         int                     error;
 157
 158         bzero(sc, sizeof(struct stg_softc));
 159
 160         error = stg_alloc_resource(dev);
 161         if (error) {
 162                 return(error);
 163         }
 164
 165         if (stgprobe(dev) == 0) {
 166                 stg_release_resource(dev);
 167                 return(ENXIO);
 168         }
 169
 170         stg_release_resource(dev);
 171
 172         return(0);
 173 }
 174
 175 static int
 176 stg_isa_attach(device_t dev)
 177 {
 178         struct stg_softc        *sc = device_get_softc(dev);
 179         int                     error;
 180
 181         error = stg_alloc_resource(dev);
 182         if (error) {
 183                 return(error);
 184         }
 185
 186         error = bus_setup_intr(dev, sc->irq_res, 0,
 187                                stg_isa_intr, (void *)sc,
 188                                &sc->stg_intrhand, NULL);
 189         if (error) {
 190                 stg_release_resource(dev);
 191                 return(error);
 192         }
 193
 194         if (stgattach(dev) == 0) {
 195                 stg_release_resource(dev);
 196                 return(ENXIO);
 197         }
 198
 199         return(0);
 200 }
 201
 202 static  void
 203 stg_isa_detach(device_t dev)
 204 {
 205         stg_isa_unload(dev);
 206         stg_release_resource(dev);
 207 }
 208
 209 static device_method_t stg_isa_methods[] = {
 210         /* Device interface */
 211         DEVMETHOD(device_probe,         stg_isa_probe),
 212         DEVMETHOD(device_attach,        stg_isa_attach),
 213         DEVMETHOD(device_detach,        stg_isa_detach),
 214
 215         { 0, 0 }
 216 };
 217
 218 static driver_t stg_isa_driver = {
 219         "stg",
 220         stg_isa_methods,
 221         sizeof(struct stg_softc),
 222 };
 223
 224 static devclass_t stg_devclass;
 225
 226 DRIVER_MODULE(stg, isa, stg_isa_driver, stg_devclass, 0, 0);
 227
 228 static  void
 229 stg_isa_unload(device_t devi)
 230 {
 231         struct stg_softc *sc = device_get_softc(devi);
 232
 233         kprintf("%s: unload\n",sc->sc_sclow.sl_xname);
 234         crit_enter();
 235         scsi_low_deactivate((struct scsi_low_softc *)sc);
 236         scsi_low_dettach(&sc->sc_sclow);
 237         crit_exit();
 238 }
 239
 240 static  int
 241 stgprobe(device_t devi)
 242 {
 243         int rv;
 244         struct stg_softc *sc = device_get_softc(devi);
 245
 246         rv = stgprobesubr(rman_get_bustag(sc->port_res),
 247                           rman_get_bushandle(sc->port_res),
 248                           device_get_flags(devi));
 249
 250         return rv;
 251 }
 252
 253 static  int
 254 stgattach(device_t devi)
 255 {
 256         struct stg_softc *sc;
 257         struct scsi_low_softc *slp;
 258         u_int32_t flags = device_get_flags(devi);
 259         u_int iobase = bus_get_resource_start(devi, SYS_RES_IOPORT, 0);
 260         char    dvname[16];
 261
 262         strcpy(dvname,"stg");
 263
 264
 265         if (iobase == 0)
 266         {
 267                 kprintf("%s: no ioaddr is given\n", dvname);
 268                 return (0);
 269         }
 270
 271         sc = device_get_softc(devi);
 272         if (sc == NULL) {
 273                 return(0);
 274         }
 275
 276         slp = &sc->sc_sclow;
 277         slp->sl_dev = devi;
 278         sc->sc_iot = rman_get_bustag(sc->port_res);
 279         sc->sc_ioh = rman_get_bushandle(sc->port_res);
 280
 281         slp->sl_hostid = STG_HOSTID;
 282         slp->sl_cfgflags = flags;
 283
 284         crit_enter();
 285         stgattachsubr(sc);
 286         crit_exit();
 287
 288         return(STGIOSZ);
 289 }