The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/fdc/fdc_pccard.c

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    1 /*-
    2  * Copyright (c) 2004-2005 M. Warner Losh.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: releng/6.1/sys/dev/fdc/fdc_pccard.c 147580 2005-06-24 14:36:54Z imp $");
   29 
   30 #include <sys/param.h>
   31 #include <sys/bio.h>
   32 #include <sys/bus.h>
   33 #include <sys/kernel.h>
   34 #include <sys/lock.h>
   35 #include <sys/module.h>
   36 #include <sys/mutex.h>
   37 #include <sys/rman.h>
   38 #include <sys/systm.h>
   39 #include <machine/bus.h>
   40 
   41 #include <machine/bus.h>
   42 
   43 #include <dev/fdc/fdcvar.h>
   44 #include <dev/pccard/pccardvar.h>
   45 #include "pccarddevs.h"
   46 
   47 static int fdc_pccard_probe(device_t);
   48 static int fdc_pccard_attach(device_t);
   49 
   50 static const struct pccard_product fdc_pccard_products[] = {
   51         PCMCIA_CARD(YEDATA, EXTERNAL_FDD),
   52 };
   53         
   54 static int
   55 fdc_pccard_alloc_resources(device_t dev, struct fdc_data *fdc)
   56 {
   57         struct resource *res;
   58         int rid, i;
   59 
   60         rid = 0;
   61         res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0ul, ~0ul, 1,
   62             RF_ACTIVE);
   63         if (res == NULL) {
   64                 device_printf(dev, "cannot alloc I/O port range\n");
   65                 return (ENXIO);
   66         }
   67         for (i = 0; i < FDC_MAXREG; i++) {
   68                 fdc->resio[i] = res;
   69                 fdc->ridio[i] = rid;
   70                 fdc->ioff[i] = i;
   71                 fdc->ioh[i] = rman_get_bushandle(res);
   72         }
   73         fdc->iot = rman_get_bustag(res);
   74 
   75         fdc->rid_irq = 0;
   76         fdc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &fdc->rid_irq,
   77             RF_ACTIVE | RF_SHAREABLE);
   78         if (fdc->res_irq == NULL) {
   79                 device_printf(dev, "cannot reserve interrupt line\n");
   80                 return (ENXIO);
   81         }
   82         return (0);
   83 }
   84 
   85 static int
   86 fdc_pccard_probe(device_t dev)
   87 {
   88         const struct pccard_product *pp;
   89 
   90         if ((pp = pccard_product_lookup(dev, fdc_pccard_products,
   91             sizeof(fdc_pccard_products[0]), NULL)) != NULL) {
   92                 device_set_desc(dev, "PC Card Floppy");
   93                 return (0);
   94         }
   95         return (ENXIO);
   96 }
   97 
   98 static int
   99 fdc_pccard_attach(device_t dev)
  100 {
  101         int error;
  102         struct  fdc_data *fdc;
  103         device_t child;
  104 
  105         fdc = device_get_softc(dev);
  106         fdc->flags = FDC_NODMA | FDC_NOFAST;
  107         fdc->fdct = FDC_NE765;
  108         error = fdc_pccard_alloc_resources(dev, fdc);
  109         if (error == 0)
  110                 error = fdc_attach(dev);
  111         if (error == 0) {
  112                 child = fdc_add_child(dev, "fd", -1);
  113                 device_set_flags(child, 0x24);
  114                 error = bus_generic_attach(dev);
  115         }
  116         if (error)
  117                 fdc_release_resources(fdc);
  118         return (error);
  119 }
  120 
  121 static device_method_t fdc_pccard_methods[] = {
  122         /* Device interface */
  123         DEVMETHOD(device_probe,         fdc_pccard_probe),
  124         DEVMETHOD(device_attach,        fdc_pccard_attach),
  125         DEVMETHOD(device_detach,        fdc_detach),
  126         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
  127         DEVMETHOD(device_suspend,       bus_generic_suspend),
  128         DEVMETHOD(device_resume,        bus_generic_resume),
  129 
  130         /* Bus interface */
  131         DEVMETHOD(bus_print_child,      fdc_print_child),
  132         DEVMETHOD(bus_read_ivar,        fdc_read_ivar),
  133         DEVMETHOD(bus_write_ivar,       fdc_write_ivar),
  134         /* Our children never use any other bus interface methods. */
  135 
  136         { 0, 0 }
  137 };
  138 
  139 static driver_t fdc_pccard_driver = {
  140         "fdc",
  141         fdc_pccard_methods,
  142         sizeof(struct fdc_data)
  143 };
  144 
  145 DRIVER_MODULE(fdc, pccard, fdc_pccard_driver, fdc_devclass, 0, 0);

Cache object: 1f7231009861887a858d0f5c96f1d8fa


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