sys/dev/disk/fd/fd_pccard.c

   1 /*
   2  * Copyright (c) 1990 The Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Don Ahn.
   7  *
   8  * Libretto PCMCIA floppy support by David Horwitt (dhorwitt@ucsd.edu)
   9  * aided by the Linux floppy driver modifications from David Bateman
  10  * (dbateman@eng.uts.edu.au).
  11  *
  12  * Copyright (c) 1993, 1994 by
  13  *  jc@irbs.UUCP (John Capo)
  14  *  vak@zebub.msk.su (Serge Vakulenko)
  15  *  ache@astral.msk.su (Andrew A. Chernov)
  16  *
  17  * Copyright (c) 1993, 1994, 1995 by
  18  *  joerg_wunsch@uriah.sax.de (Joerg Wunsch)
  19  *  dufault@hda.com (Peter Dufault)
  20  *
  21  * Copyright (c) 2001 Joerg Wunsch,
  22  *  joerg_wunsch@uriah.sax.de (Joerg Wunsch)
  23  *
  24  * Redistribution and use in source and binary forms, with or without
  25  * modification, are permitted provided that the following conditions
  26  * are met:
  27  * 1. Redistributions of source code must retain the above copyright
  28  *    notice, this list of conditions and the following disclaimer.
  29  * 2. Redistributions in binary form must reproduce the above copyright
  30  *    notice, this list of conditions and the following disclaimer in the
  31  *    documentation and/or other materials provided with the distribution.
  32  * 3. All advertising materials mentioning features or use of this software
  33  *    must display the following acknowledgement:
  34  *      This product includes software developed by the University of
  35  *      California, Berkeley and its contributors.
  36  * 4. Neither the name of the University nor the names of its contributors
  37  *    may be used to endorse or promote products derived from this software
  38  *    without specific prior written permission.
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  */
  53
  54 #include <sys/param.h>
  55 #include <sys/systm.h>
  56 #include <sys/buf.h>
  57 #include <sys/bus.h>
  58 #include <sys/kernel.h>
  59 #include <sys/module.h>
  60
  61 #include "fdc.h"
  62 #include "fdreg.h"
  63
  64 #include <bus/pccard/pccardvar.h>
  65
  66 #include "card_if.h"
  67 #include "pccarddevs.h"
  68
  69 static const struct pccard_product fdc_products[] = {
  70         PCMCIA_CARD(YEDATA, EXTERNAL_FDD, 0),
  71         { NULL }
  72 };
  73
  74 static void
  75 fdctl_wr_pcmcia(fdc_p fdc, u_int8_t v)
  76 {
  77         bus_space_write_1(fdc->portt, fdc->porth, FDCTL+fdc->port_off, v);
  78 }
  79
  80 static int fdc_pccard_match(device_t dev)
  81 {
  82         const struct pccard_product *pp;
  83
  84         if ((pp = pccard_product_lookup(dev, fdc_products,
  85             sizeof(fdc_products[0]), NULL)) != NULL) {
  86                 device_set_desc(dev, pp->pp_name);
  87                 return (0);
  88         }
  89         return (ENXIO);
  90 }
  91
  92 static int
  93 fdc_pccard_probe(device_t dev)
  94 {
  95         int     error;
  96         struct  fdc_data *fdc;
  97
  98         fdc = device_get_softc(dev);
  99         bzero(fdc, sizeof *fdc);
 100         fdc->fdc_dev = dev;
 101         fdc->fdctl_wr = fdctl_wr_pcmcia;
 102
 103         fdc->flags |= FDC_ISPCMCIA | FDC_NODMA;
 104
 105         /* Attempt to allocate our resources for the duration of the probe */
 106         error = fdc_alloc_resources(fdc);
 107         if (error)
 108                 goto out;
 109
 110         /* First - lets reset the floppy controller */
 111         fdout_wr(fdc, 0);
 112         DELAY(100);
 113         fdout_wr(fdc, FDO_FRST);
 114
 115         /* see if it can handle a command */
 116         if (fd_cmd(fdc, 3, NE7CMD_SPECIFY, NE7_SPEC_1(3, 240),
 117                    NE7_SPEC_2(2, 0), 0)) {
 118                 error = ENXIO;
 119                 goto out;
 120         }
 121
 122         fdc->fdct = FDC_NE765;
 123
 124 out:
 125         fdc_release_resources(fdc);
 126         return (error);
 127 }
 128
 129 static int
 130 fdc_pccard_detach(device_t dev)
 131 {
 132         struct  fdc_data *fdc;
 133         int     error;
 134
 135         fdc = device_get_softc(dev);
 136
 137         /* have our children detached first */
 138         if ((error = bus_generic_detach(dev)))
 139                 return (error);
 140
 141         if ((fdc->flags & FDC_ATTACHED) == 0) {
 142                 device_printf(dev, "already unloaded\n");
 143                 return (0);
 144         }
 145         fdc->flags &= ~FDC_ATTACHED;
 146
 147         BUS_TEARDOWN_INTR(device_get_parent(dev), dev, fdc->res_irq,
 148                           fdc->fdc_intr);
 149         fdc_release_resources(fdc);
 150         device_printf(dev, "unload\n");
 151         return (0);
 152 }
 153
 154 static device_method_t fdc_pccard_methods[] = {
 155         /* Device interface */
 156         DEVMETHOD(device_probe,         pccard_compat_probe),
 157         DEVMETHOD(device_attach,        pccard_compat_attach),
 158         DEVMETHOD(device_detach,        fdc_pccard_detach),
 159         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
 160         DEVMETHOD(device_suspend,       bus_generic_suspend),
 161         DEVMETHOD(device_resume,        bus_generic_resume),
 162
 163         /* Card interface */
 164         DEVMETHOD(card_compat_match,    fdc_pccard_match),
 165         DEVMETHOD(card_compat_probe,    fdc_pccard_probe),
 166         DEVMETHOD(card_compat_attach,   fdc_attach),
 167         /* Device interface */
 168
 169         /* Bus interface */
 170         DEVMETHOD(bus_print_child,      fdc_print_child),
 171         DEVMETHOD(bus_read_ivar,        fdc_read_ivar),
 172         /* Our children never use any other bus interface methods. */
 173
 174         DEVMETHOD_END
 175 };
 176
 177 static driver_t fdc_pccard_driver = {
 178         "fdc",
 179         fdc_pccard_methods,
 180         sizeof(struct fdc_data)
 181 };
 182
 183 DRIVER_MODULE(fdc, pccard, fdc_pccard_driver, fdc_devclass, NULL, NULL);