/*	$FreeBSD: src/sys/dev/stg/tmc18c30_pccard.c,v 1.2.2.6 2001/12/17 13:30:19 non Exp $	*/
/*	$DragonFly: src/sys/dev/disk/stg/tmc18c30_pccard.c,v 1.8 2005/06/06 21:48:16 eirikn Exp $	*/
/*	$NecBSD: tmc18c30_pisa.c,v 1.22 1998/11/26 01:59:21 honda Exp $	*/
/*	$NetBSD$	*/

/*
 * [Ported for FreeBSD]
 *  Copyright (c) 2000
 *      Noriaki Mitsunaga, Mitsuru Iwasaki and Takanori Watanabe.
 *      All rights reserved.
 * [NetBSD for NEC PC-98 series]
 *  Copyright (c) 1996, 1997, 1998
 *	NetBSD/pc98 porting staff. All rights reserved.
 *  Copyright (c) 1996, 1997, 1998
 *	Naofumi HONDA. All rights reserved.
 *  Copyright (c) 1996, 1997, 1998
 *	Kouichi Matsuda. 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.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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/param.h>
#include <sys/systm.h>
#include <sys/disklabel.h>
#include <sys/buf.h>
#include <sys/queue.h>
#include <sys/malloc.h>
#include <sys/errno.h>
#include <sys/thread2.h>

#include <vm/vm.h>

#include <machine/bus.h>
#include <machine/bus_pio.h>
#include <machine/dvcfg.h>

#include <sys/device_port.h>

#include <bus/pccard/pccarddevs.h>
#include <bus/pccard/pccardvar.h>

#include <bus/cam/scsi/scsi_low.h>
#include <bus/cam/scsi/scsi_low_pisa.h>

#include "tmc18c30reg.h"
#include "tmc18c30var.h"

#define	STG_HOSTID	7

#include	<sys/kernel.h>
#include	<sys/module.h>
#include	<bus/pccard/cardinfo.h>
#include	<bus/pccard/slot.h>

static const struct pccard_product stg_products[] = {
	PCMCIA_CARD(FUTUREDOMAIN, SCSI2GO, 0),
	PCMCIA_CARD(IBM, SCSICARD, 0),
	PCMCIA_CARD(RATOC, REX5536, 0),
	PCMCIA_CARD(RATOC, REX5536AM, 0),
	PCMCIA_CARD(RATOC, REX5536M, 0),
	{ NULL }
};

static	int	stgprobe(DEVPORT_PDEVICE devi);
static	int	stgattach(DEVPORT_PDEVICE devi);

static	void	stg_card_unload	(DEVPORT_PDEVICE);

/*
 * Additional code for FreeBSD new-bus PCCard frontend
 */

static int stg_pccard_match(device_t dev)
{
  	const struct pccard_product *pp;

	if ((pp = pccard_product_lookup(dev, stg_products,
	    sizeof(stg_products[0]), NULL)) != NULL) {
		if (pp->pp_name != NULL)
			device_set_desc(dev, pp->pp_name);
		return(0);
	}
	return(EIO);
}

static void
stg_pccard_intr(void * arg)
{
	stgintr(arg);
}

static void
stg_release_resource(DEVPORT_PDEVICE dev)
{
	struct stg_softc	*sc = device_get_softc(dev);

	if (sc->stg_intrhand) {
		bus_teardown_intr(dev, sc->irq_res, sc->stg_intrhand);
	}

	if (sc->port_res) {
		bus_release_resource(dev, SYS_RES_IOPORT,
				     sc->port_rid, sc->port_res);
	}

	if (sc->irq_res) {
		bus_release_resource(dev, SYS_RES_IRQ,
				     sc->irq_rid, sc->irq_res);
	}

	if (sc->mem_res) {
		bus_release_resource(dev, SYS_RES_MEMORY,
				     sc->mem_rid, sc->mem_res);
	}
}

static int
stg_alloc_resource(DEVPORT_PDEVICE dev)
{
	struct stg_softc	*sc = device_get_softc(dev);
	u_long			ioaddr, iosize, maddr, msize;
	int			error;

	error = bus_get_resource(dev, SYS_RES_IOPORT, 0, &ioaddr, &iosize);
	if (error || iosize < STGIOSZ) {
		return(ENOMEM);
	}

	sc->port_rid = 0;
	sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->port_rid,
					  0, ~0, STGIOSZ, RF_ACTIVE);
	if (sc->port_res == NULL) {
		stg_release_resource(dev);
		return(ENOMEM);
	}

	sc->irq_rid = 0;
	sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid,
					 0, ~0, 1, RF_ACTIVE);
	if (sc->irq_res == NULL) {
		stg_release_resource(dev);
		return(ENOMEM);
	}

	error = bus_get_resource(dev, SYS_RES_MEMORY, 0, &maddr, &msize);
	if (error) {
		return(0);      /* XXX */
	}

	/* no need to allocate memory if not configured */
	if (maddr == 0 || msize == 0) {
		return(0);
	}

	sc->mem_rid = 0;
	sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid,
					 0, ~0, 1, RF_ACTIVE);
	if (sc->mem_res == NULL) {
		stg_release_resource(dev);
		return(ENOMEM);
	}

	return(0);
}

static int
stg_pccard_probe(DEVPORT_PDEVICE dev)
{
	struct stg_softc	*sc = device_get_softc(dev);
	int			error;

	bzero(sc, sizeof(struct stg_softc));

	error = stg_alloc_resource(dev);
	if (error) {
		return(error);
	}

	if (stgprobe(dev) == 0) {
		stg_release_resource(dev);
		return(ENXIO);
	}

	stg_release_resource(dev);

	return(0);
}

static int
stg_pccard_attach(DEVPORT_PDEVICE dev)
{
	struct stg_softc	*sc = device_get_softc(dev);
	int			error;

	error = stg_alloc_resource(dev);
	if (error) {
		return(error);
	}

	error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_CAM,
			       stg_pccard_intr, (void *)sc,
			       &sc->stg_intrhand, NULL);
	if (error) {
		stg_release_resource(dev);
		return(error);
	}

	if (stgattach(dev) == 0) {
		stg_release_resource(dev);
		return(ENXIO);
	}

	return(0);
}

static	void
stg_pccard_detach(DEVPORT_PDEVICE dev)
{
	stg_card_unload(dev);
	stg_release_resource(dev);
}

static device_method_t stg_pccard_methods[] = {
	/* Device interface */
	DEVMETHOD(device_probe,		pccard_compat_probe),
	DEVMETHOD(device_attach,	pccard_compat_attach),
	DEVMETHOD(device_detach,	stg_pccard_detach),

	/* Card interface */
	DEVMETHOD(card_compat_match,	stg_pccard_match),
	DEVMETHOD(card_compat_probe,	stg_pccard_probe),
	DEVMETHOD(card_compat_attach,	stg_pccard_attach),

	{ 0, 0 }
};

static driver_t stg_pccard_driver = {
	"stg",
	stg_pccard_methods,
	sizeof(struct stg_softc),
};

static devclass_t stg_devclass;

MODULE_DEPEND(stg, scsi_low, 1, 1, 1);
DRIVER_MODULE(stg, pccard, stg_pccard_driver, stg_devclass, 0, 0);

static	void
stg_card_unload(DEVPORT_PDEVICE devi)
{
	struct stg_softc *sc = DEVPORT_PDEVGET_SOFTC(devi);

	printf("%s: unload\n",sc->sc_sclow.sl_xname);
	crit_enter();
	scsi_low_deactivate((struct scsi_low_softc *)sc);
        scsi_low_dettach(&sc->sc_sclow);
	crit_exit();
}

static	int
stgprobe(DEVPORT_PDEVICE devi)
{
	int rv;
	struct stg_softc *sc = device_get_softc(devi);

	rv = stgprobesubr(rman_get_bustag(sc->port_res),
			  rman_get_bushandle(sc->port_res),
			  DEVPORT_PDEVFLAGS(devi));

	return rv;
}

static	int
stgattach(DEVPORT_PDEVICE devi)
{
	struct stg_softc *sc;
	struct scsi_low_softc *slp;
	u_int32_t flags = DEVPORT_PDEVFLAGS(devi);
	u_int iobase = DEVPORT_PDEVIOBASE(devi);
	char	dvname[16];

	strcpy(dvname,"stg");

	if (iobase == 0)
	{
		printf("%s: no ioaddr is given\n", dvname);
		return (0);
	}

	sc = DEVPORT_PDEVALLOC_SOFTC(devi);
	if (sc == NULL) {
		return(0);
	}

	slp = &sc->sc_sclow;
	slp->sl_dev = devi;
	sc->sc_iot = rman_get_bustag(sc->port_res);
	sc->sc_ioh = rman_get_bushandle(sc->port_res);

	slp->sl_hostid = STG_HOSTID;
	slp->sl_cfgflags = flags;

	crit_enter();
	stgattachsubr(sc);
	crit_exit();

	return(STGIOSZ);
}