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/9.0/sys/dev/fdc/fdc_pccard.c 223624 2011-06-28 08:36:48Z kevlo $");
   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 <dev/fdc/fdcvar.h>
   42 #include <dev/pccard/pccardvar.h>
   43 #include "pccarddevs.h"
   44 
   45 static int fdc_pccard_probe(device_t);
   46 static int fdc_pccard_attach(device_t);
   47 
   48 static const struct pccard_product fdc_pccard_products[] = {
   49         PCMCIA_CARD(YEDATA, EXTERNAL_FDD),
   50 };
   51         
   52 static int
   53 fdc_pccard_alloc_resources(device_t dev, struct fdc_data *fdc)
   54 {
   55         struct resource *res;
   56         int rid, i;
   57 
   58         rid = 0;
   59         res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0ul, ~0ul, 1,
   60             RF_ACTIVE);
   61         if (res == NULL) {
   62                 device_printf(dev, "cannot alloc I/O port range\n");
   63                 return (ENXIO);
   64         }
   65         for (i = 0; i < FDC_MAXREG; i++) {
   66                 fdc->resio[i] = res;
   67                 fdc->ridio[i] = rid;
   68                 fdc->ioff[i] = i;
   69                 fdc->ioh[i] = rman_get_bushandle(res);
   70         }
   71         fdc->iot = rman_get_bustag(res);
   72 
   73         fdc->rid_irq = 0;
   74         fdc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &fdc->rid_irq,
   75             RF_ACTIVE | RF_SHAREABLE);
   76         if (fdc->res_irq == NULL) {
   77                 device_printf(dev, "cannot reserve interrupt line\n");
   78                 return (ENXIO);
   79         }
   80         return (0);
   81 }
   82 
   83 static int
   84 fdc_pccard_probe(device_t dev)
   85 {
   86         if (pccard_product_lookup(dev, fdc_pccard_products,
   87             sizeof(fdc_pccard_products[0]), NULL) != NULL) {
   88                 device_set_desc(dev, "PC Card Floppy");
   89                 return (0);
   90         }
   91         return (ENXIO);
   92 }
   93 
   94 static int
   95 fdc_pccard_attach(device_t dev)
   96 {
   97         int error;
   98         struct  fdc_data *fdc;
   99         device_t child;
  100 
  101         fdc = device_get_softc(dev);
  102         fdc->flags = FDC_NODMA | FDC_NOFAST;
  103         fdc->fdct = FDC_NE765;
  104         error = fdc_pccard_alloc_resources(dev, fdc);
  105         if (error == 0)
  106                 error = fdc_attach(dev);
  107         if (error == 0) {
  108                 child = fdc_add_child(dev, "fd", -1);
  109                 device_set_flags(child, 0x24);
  110                 error = bus_generic_attach(dev);
  111         }
  112         if (error)
  113                 fdc_release_resources(fdc);
  114         return (error);
  115 }
  116 
  117 static device_method_t fdc_pccard_methods[] = {
  118         /* Device interface */
  119         DEVMETHOD(device_probe,         fdc_pccard_probe),
  120         DEVMETHOD(device_attach,        fdc_pccard_attach),
  121         DEVMETHOD(device_detach,        fdc_detach),
  122         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
  123         DEVMETHOD(device_suspend,       bus_generic_suspend),
  124         DEVMETHOD(device_resume,        bus_generic_resume),
  125 
  126         /* Bus interface */
  127         DEVMETHOD(bus_print_child,      fdc_print_child),
  128         DEVMETHOD(bus_read_ivar,        fdc_read_ivar),
  129         DEVMETHOD(bus_write_ivar,       fdc_write_ivar),
  130         /* Our children never use any other bus interface methods. */
  131 
  132         { 0, 0 }
  133 };
  134 
  135 static driver_t fdc_pccard_driver = {
  136         "fdc",
  137         fdc_pccard_methods,
  138         sizeof(struct fdc_data)
  139 };
  140 
  141 DRIVER_MODULE(fdc, pccard, fdc_pccard_driver, fdc_devclass, 0, 0);

Cache object: 26eecf9bc16e967dde7005c59b3b24c8


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