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

     /*-
      * Copyright (c) 2004 M. Warner Losh.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions, and the following disclaimer,
     *    without modification, immediately at the beginning of the file.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in
     *    the documentation and/or other materials provided with the
     *    distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
     * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/5.3/sys/dev/fdc/fdc_pccard.c 135415 2004-09-18 04:57:55Z imp $");
    
    #include <sys/param.h>
    #include <sys/bio.h>
    #include <sys/bus.h>
    #include <sys/kernel.h>
    #include <sys/lock.h>
    #include <sys/module.h>
    #include <sys/mutex.h>
    #include <sys/rman.h>
    #include <sys/systm.h>
    #include <machine/bus.h>
    
    #include <machine/bus.h>
    
    #include <dev/fdc/fdcvar.h>
    #include <dev/pccard/pccardvar.h>
    #include "pccarddevs.h"
    
    static int fdc_pccard_probe(device_t);
    static int fdc_pccard_attach(device_t);
    
    static const struct pccard_product fdc_pccard_products[] = {
            PCMCIA_CARD(YEDATA, EXTERNAL_FDD, 0),
    };
            
    static int
    fdc_pccard_alloc_resources(device_t dev, struct fdc_data *fdc)
    {
            fdc->rid_ioport = 0;
            fdc->res_ioport = bus_alloc_resource(dev, SYS_RES_IOPORT,
                &fdc->rid_ioport, 0ul, ~0ul, 1, RF_ACTIVE);
            if (fdc->res_ioport == NULL) {
                    device_printf(dev, "cannot alloc I/O port range\n");
                    return (ENXIO);
            }
            fdc->portt = rman_get_bustag(fdc->res_ioport);
            fdc->porth = rman_get_bushandle(fdc->res_ioport);
            fdc->stst = fdc->portt;
            fdc->stsh = fdc->porth;
            fdc->sts_off = 0;
            fdc->ctlt = fdc->portt;
            fdc->ctlh = fdc->porth;
            fdc->ctl_off = 7;
    
            fdc->rid_irq = 0;
            fdc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &fdc->rid_irq,
                RF_ACTIVE | RF_SHAREABLE);
            if (fdc->res_irq == NULL) {
                    device_printf(dev, "cannot reserve interrupt line\n");
                    return (ENXIO);
            }
            return (0);
    }
    
    static int
    fdc_pccard_probe(device_t dev)
    {
            const struct pccard_product *pp;
    
            if ((pp = pccard_product_lookup(dev, fdc_pccard_products,
                sizeof(fdc_pccard_products[0]), NULL)) != NULL) {
                    device_set_desc(dev, "PC Card Floppy");
                    return (0);
            }
            return (ENXIO);
    }
    
    static int
    fdc_pccard_attach(device_t dev)
   {
           int error;
           struct  fdc_data *fdc;
           device_t child;
   
           fdc = device_get_softc(dev);
           fdc->flags = FDC_NODMA;
           fdc->fdct = FDC_NE765;
           error = fdc_pccard_alloc_resources(dev, fdc);
           if (error == 0)
                   error = fdc_attach(dev);
           if (error == 0) {
                   child = fdc_add_child(dev, "fd", -1);
                   device_set_flags(child, 0x24);
                   error = bus_generic_attach(dev);
           }
           if (error)
                   fdc_release_resources(fdc);
           return (error);
   }
   
   static device_method_t fdc_pccard_methods[] = {
           /* Device interface */
           DEVMETHOD(device_probe,         fdc_pccard_probe),
           DEVMETHOD(device_attach,        fdc_pccard_attach),
           DEVMETHOD(device_detach,        fdc_detach),
           DEVMETHOD(device_shutdown,      bus_generic_shutdown),
           DEVMETHOD(device_suspend,       bus_generic_suspend),
           DEVMETHOD(device_resume,        bus_generic_resume),
   
           /* Bus interface */
           DEVMETHOD(bus_print_child,      fdc_print_child),
           DEVMETHOD(bus_read_ivar,        fdc_read_ivar),
           DEVMETHOD(bus_write_ivar,       fdc_write_ivar),
           /* Our children never use any other bus interface methods. */
   
           { 0, 0 }
   };
   
   static driver_t fdc_pccard_driver = {
           "fdc",
           fdc_pccard_methods,
           sizeof(struct fdc_data)
   };
   
   DRIVER_MODULE(fdc, pccard, fdc_pccard_driver, fdc_devclass, 0, 0);

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