NetBSD/sys/dev/pcmcia/aic_pcmcia.c

/*	$NetBSD: aic_pcmcia.c,v 1.16 2000/02/04 09:31:07 enami Exp $	*/

/*
 * Copyright (c) 1997 Marc Horowitz.  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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Marc Horowitz.
 * 4. 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/select.h>
#include <sys/device.h>

#include <machine/cpu.h>
#include <machine/bus.h>
#include <machine/intr.h>

#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsipiconf.h>
#include <dev/scsipi/scsi_all.h>

#include <dev/ic/aic6360var.h>

#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciadevs.h>

int	aic_pcmcia_match __P((struct device *, struct cfdata *, void *));
void	aic_pcmcia_attach __P((struct device *, struct device *, void *));
int	aic_pcmcia_detach __P((struct device *, int));

struct aic_pcmcia_softc {
	struct aic_softc sc_aic;		/* real "aic" softc */

	/* PCMCIA-specific goo. */
	struct pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
	int sc_io_window;			/* our i/o window */
	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
	void *sc_ih;				/* interrupt handler */
	int sc_flags;
#define AIC_PCMCIA_ATTACH	0x0001		/* attach is in progress */
};

struct cfattach aic_pcmcia_ca = {
	sizeof(struct aic_pcmcia_softc), aic_pcmcia_match, aic_pcmcia_attach,
	aic_pcmcia_detach, aic_activate
};

int	aic_pcmcia_enable __P((void *, int));

const struct pcmcia_product aic_pcmcia_products[] = {
	{ PCMCIA_STR_ADAPTEC_APA1460,		PCMCIA_VENDOR_ADAPTEC,
	  PCMCIA_PRODUCT_ADAPTEC_APA1460,	0 },

	{ PCMCIA_STR_ADAPTEC_APA1460A,		PCMCIA_VENDOR_ADAPTEC,
	  PCMCIA_PRODUCT_ADAPTEC_APA1460A,	0 },

	{ PCMCIA_STR_NEWMEDIA_BUSTOASTER,	PCMCIA_VENDOR_NEWMEDIA,
	  PCMCIA_PRODUCT_NEWMEDIA_BUSTOASTER,	0 },

	{ NULL }
};

int
aic_pcmcia_match(parent, match, aux)
	struct device *parent;
	struct cfdata *match;
	void *aux;
{
	struct pcmcia_attach_args *pa = aux;

        if (pcmcia_product_lookup(pa, aic_pcmcia_products,
            sizeof aic_pcmcia_products[0], NULL) != NULL)
		return (1);
	return (0);
}

void
aic_pcmcia_attach(parent, self, aux)
	struct device *parent, *self;
	void *aux;
{
	struct aic_pcmcia_softc *psc = (void *)self;
	struct aic_softc *sc = &psc->sc_aic;
	struct pcmcia_attach_args *pa = aux;
	struct pcmcia_config_entry *cfe;
	struct pcmcia_function *pf = pa->pf;
	const struct pcmcia_product *pp;

	psc->sc_pf = pf;

	for (cfe = SIMPLEQ_FIRST(&pf->cfe_head); cfe != NULL;
	    cfe = SIMPLEQ_NEXT(cfe, cfe_list)) {
		if (cfe->num_memspace != 0 ||
		    cfe->num_iospace != 1)
			continue;

		/*
		 * The bustoaster has a default config as first
		 * entry, we don't want to use that.
		 */
		if (pa->manufacturer == PCMCIA_VENDOR_NEWMEDIA &&
		    pa->product == PCMCIA_PRODUCT_NEWMEDIA_BUSTOASTER &&
		    cfe->iospace[0].start == 0)
			continue;

		if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
		    cfe->iospace[0].length, 0, &psc->sc_pcioh) == 0)
			break;
	}

	if (cfe == 0) {
		printf(": can't alloc i/o space\n");
		goto no_config_entry;
	}

	sc->sc_iot = psc->sc_pcioh.iot;
	sc->sc_ioh = psc->sc_pcioh.ioh;

	/* Enable the card. */
	pcmcia_function_init(pf, cfe);
	if (pcmcia_function_enable(pf)) {
		printf(": function enable failed\n");
		goto enable_failed;
	}

	/* Map in the io space */
	if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, psc->sc_pcioh.size,
	    &psc->sc_pcioh, &psc->sc_io_window)) {
		printf(": can't map i/o space\n");
		goto iomap_failed;
	}

	if (!aic_find(sc->sc_iot, sc->sc_ioh)) {
		printf(": unable to detect chip!\n");
		goto no_aic_found;
	}

	pp = pcmcia_product_lookup(pa, aic_pcmcia_products,
	    sizeof aic_pcmcia_products[0], NULL);
	if (pp == NULL) {
		printf("\n");
		panic("aic_pcmcia_attach: impossible");
	}

	printf(": %s\n", pp->pp_name);

	/* We can enable and disable the controller. */
	sc->sc_adapter.scsipi_enable = aic_pcmcia_enable;

	psc->sc_flags |= AIC_PCMCIA_ATTACH;
	aicattach(sc);
	psc->sc_flags &= ~AIC_PCMCIA_ATTACH;
	return;

 no_aic_found:
	/* Unmap our i/o window. */
	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);

 iomap_failed:
	/* Disable the device. */
	pcmcia_function_disable(psc->sc_pf);

 enable_failed:
	/* Unmap our i/o space. */
	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);

 no_config_entry:
	psc->sc_io_window = -1;
}

int
aic_pcmcia_detach(self, flags)
	struct device *self;
	int flags;
{
	struct aic_pcmcia_softc *sc = (struct aic_pcmcia_softc *)self;
	int error;

	if (sc->sc_io_window == -1)
		/* Nothing to detach. */
		return (0);

	if ((error = aic_detach(self, flags)) != 0)
		return (error);

	/* Unmap our i/o window and i/o space. */
	pcmcia_io_unmap(sc->sc_pf, sc->sc_io_window);
	pcmcia_io_free(sc->sc_pf, &sc->sc_pcioh);

	return (0);
}
int
aic_pcmcia_enable(arg, onoff)
	void *arg;
	int onoff;
{
	struct aic_pcmcia_softc *psc = arg;

	if (onoff) {
		/* Establish the interrupt handler. */
		psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_BIO,
		    aicintr, &psc->sc_aic);
		if (psc->sc_ih == NULL) {
			printf("%s: couldn't establish interrupt handler\n",
			    psc->sc_aic.sc_dev.dv_xname);
			return (EIO);
		}

		/*
		 * If attach is in progress, we know that card power is
		 * enabled and chip will be initialized later.
		 * Otherwise, enable and reset now.
		 */
		if ((psc->sc_flags & AIC_PCMCIA_ATTACH) == 0) {
			if (pcmcia_function_enable(psc->sc_pf)) {
				printf("%s: couldn't enable PCMCIA function\n",
				    psc->sc_aic.sc_dev.dv_xname);
				pcmcia_intr_disestablish(psc->sc_pf,
				    psc->sc_ih);
				return (EIO);
			}

			/* Initialize only chip.  */
			aic_init(&psc->sc_aic, 0);
		}
	} else {
		pcmcia_function_disable(psc->sc_pf);
		pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
	}

	return (0);
}