freebsd-dev/sys/dev/fdc/fdc_pccard.c

/*-
 * Copyright (c) 2004-2005 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.
 * 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("$FreeBSD$");

#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 <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),
};
	
static int
fdc_pccard_alloc_resources(device_t dev, struct fdc_data *fdc)
{
	struct resource *res;
	int rid, i;

	rid = 0;
	res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0ul, ~0ul, 1,
	    RF_ACTIVE);
	if (res == NULL) {
		device_printf(dev, "cannot alloc I/O port range\n");
		return (ENXIO);
	}
	for (i = 0; i < FDC_MAXREG; i++) {
		fdc->resio[i] = res;
		fdc->ridio[i] = rid;
		fdc->ioff[i] = i;
		fdc->ioh[i] = rman_get_bushandle(res);
	}
	fdc->iot = rman_get_bustag(res);

	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)
{
	if (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_NOFAST;
	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);