NetBSD/sys/dev/pcmcia/if_mbe_pcmcia.c

/*	$NetBSD: if_mbe_pcmcia.c,v 1.21 2001/11/13 07:26:33 lukem Exp $	*/

/*-
 * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Enami Tsugutomo.
 *
 * 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 the NetBSD
 *	Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
__KERNEL_RCSID(0, "$NetBSD: if_mbe_pcmcia.c,v 1.21 2001/11/13 07:26:33 lukem Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/socket.h>

#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>

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

#include <dev/ic/mb86960reg.h>
#include <dev/ic/mb86960var.h>

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

int	mbe_pcmcia_match __P((struct device *, struct cfdata *, void *));
void	mbe_pcmcia_attach __P((struct device *, struct device *, void *));
int	mbe_pcmcia_detach __P((struct device *, int));

struct mbe_pcmcia_softc {
	struct	mb86960_softc sc_mb86960;	/* real "mb" softc */

	/* PCMCIA-specific goo. */
	struct	pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
	int	sc_io_window;			/* our i/o window */
	void	*sc_ih;				/* interrupt cookie */
	struct	pcmcia_function *sc_pf;		/* our PCMCIA function */
};

struct cfattach mbe_pcmcia_ca = {
	sizeof(struct mbe_pcmcia_softc), mbe_pcmcia_match, mbe_pcmcia_attach,
	    mbe_pcmcia_detach, mb86960_activate
};

int	mbe_pcmcia_enable __P((struct mb86960_softc *));
void	mbe_pcmcia_disable __P((struct mb86960_softc *));

struct mbe_pcmcia_get_enaddr_args {
	u_int8_t enaddr[ETHER_ADDR_LEN];
	int maddr;
};
int	mbe_pcmcia_get_enaddr_from_cis __P((struct pcmcia_tuple *, void *));
int	mbe_pcmcia_get_enaddr_from_mem __P((struct mbe_pcmcia_softc *,
	    struct mbe_pcmcia_get_enaddr_args *));

const struct mbe_pcmcia_product {
	struct pcmcia_product mpp_product;
	u_int32_t mpp_ioalign;			/* required alignment */
	int mpp_enet_maddr;
} mbe_pcmcia_products[] = {
	{ { PCMCIA_STR_TDK_LAK_CD021BX,		PCMCIA_VENDOR_TDK,
	    PCMCIA_PRODUCT_TDK_LAK_CD021BX,	0 },
	  0, -1 }, 

	{ { PCMCIA_STR_TDK_LAK_CF010,		PCMCIA_VENDOR_TDK,
	    PCMCIA_PRODUCT_TDK_LAK_CF010,	0 },
	  0, -1 },

#if 0 /* XXX 86960-based? */
	{ { PCMCIA_STR_TDK_LAK_DFL9610,		PCMCIA_VENDOR_TDK,
	    PCMCIA_PRODUCT_TDK_LAK_DFL9610,	1 },
	  0, -1 },
#endif

	{ { PCMCIA_STR_CONTEC_CNETPC,		PCMCIA_VENDOR_CONTEC,
	    PCMCIA_PRODUCT_CONTEC_CNETPC,	0 },
	  0, -1 },

	{ { PCMCIA_STR_FUJITSU_LA501,		PCMCIA_VENDOR_FUJITSU,
	    PCMCIA_PRODUCT_FUJITSU_LA501,	0 },
	  0x20, -1 },

	{ { PCMCIA_STR_FUJITSU_LA10S,		PCMCIA_VENDOR_FUJITSU,
	    PCMCIA_PRODUCT_FUJITSU_LA10S,	0 },
	  0, -1 },

	{ { PCMCIA_STR_RATOC_REX_R280,		PCMCIA_VENDOR_RATOC,
	    PCMCIA_PRODUCT_RATOC_REX_R280,	0 },
	  0, 0x1fc },

	{ { NULL } }
};

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

	if (pcmcia_product_lookup(pa,
	    (const struct pcmcia_product *)mbe_pcmcia_products,
	    sizeof mbe_pcmcia_products[0], NULL) != NULL)
		return (1);

	return (0);
}

void
mbe_pcmcia_attach(parent, self, aux)
	struct device *parent, *self;
	void *aux;
{
	struct mbe_pcmcia_softc *psc = (struct mbe_pcmcia_softc *)self;
	struct mb86960_softc *sc = &psc->sc_mb86960;
	struct pcmcia_attach_args *pa = aux;
	struct pcmcia_config_entry *cfe;
	struct mbe_pcmcia_get_enaddr_args pgea;
	const struct mbe_pcmcia_product *mpp;
	int rv;

	mpp = (const struct mbe_pcmcia_product *)pcmcia_product_lookup(pa,
	    (const struct pcmcia_product *)mbe_pcmcia_products,
	    sizeof mbe_pcmcia_products[0], NULL);
	if (mpp == NULL) {
		printf("\n");
		panic("mbe_pcmcia_attach: impossible");
	}

	psc->sc_pf = pa->pf;
	cfe = pa->pf->cfe_head.sqh_first;

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

	/* Allocate and map i/o space for the card. */
	if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
	    cfe->iospace[0].length,
	    mpp->mpp_ioalign ? mpp->mpp_ioalign : cfe->iospace[0].length,
	    &psc->sc_pcioh)) {
		printf(": can't allocate i/o space\n");
		goto ioalloc_failed;
	}

	sc->sc_bst = psc->sc_pcioh.iot;
	sc->sc_bsh = psc->sc_pcioh.ioh;

	sc->sc_enable = mbe_pcmcia_enable;
	sc->sc_disable = mbe_pcmcia_disable;

	/*
	 * Don't bother checking flags; the back-end sets the chip
	 * into 16-bit mode.
	 */
	if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_IO16, 0, cfe->iospace[0].length,
	    &psc->sc_pcioh, &psc->sc_io_window)) {
		printf(": can't map i/o space\n");
		goto iomap_failed;
	}

	printf(": %s\n", mpp->mpp_product.pp_name);

	/* Read station address from mem or CIS. */
	if (mpp->mpp_enet_maddr >= 0) {
		pgea.maddr = mpp->mpp_enet_maddr;
		if (mbe_pcmcia_get_enaddr_from_mem(psc, &pgea) != 0) {
			printf("%s: Couldn't get ethernet address "
			    "from mem\n", sc->sc_dev.dv_xname);
			goto no_enaddr;
		}
	} else {
		rv = pcmcia_scan_cis(parent,
		    mbe_pcmcia_get_enaddr_from_cis, &pgea);
		if (rv == -1) {
			printf("%s: Couldn't read CIS to get ethernet "
			    "address\n", sc->sc_dev.dv_xname);
			goto no_enaddr;
		} else if (rv == 0) {
			printf("%s: Couldn't get ethernet address "
			    "from CIS\n", sc->sc_dev.dv_xname);
			goto no_enaddr;
		}
#ifdef DIAGNOSTIC
		if (rv != 1) {
			printf("%s: pcmcia_scan_cis returns %d\n",
			    sc->sc_dev.dv_xname, rv);
			panic("mbe_pcmcia_attach");
		}
		printf("%s: Ethernet address from CIS: %s\n",
		    sc->sc_dev.dv_xname, ether_sprintf(pgea.enaddr));
#endif
	}

	/* Perform generic initialization. */
	mb86960_attach(sc, MB86960_TYPE_86965, pgea.enaddr);

	mb86960_config(sc, NULL, 0, 0);

	pcmcia_function_disable(pa->pf);
	return;

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

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

 ioalloc_failed:
	pcmcia_function_disable(pa->pf);

 enable_failed:
	psc->sc_io_window = -1;
}

int
mbe_pcmcia_detach(self, flags)
	struct device *self;
	int flags;
{
	struct mbe_pcmcia_softc *psc = (struct mbe_pcmcia_softc *)self;
	int error;

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

	error = mb86960_detach(&psc->sc_mb86960);
	if (error != 0)
		return (error);

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

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

	return (0);
}

int
mbe_pcmcia_enable(sc)
	struct mb86960_softc *sc;
{
	struct mbe_pcmcia_softc *psc = (struct mbe_pcmcia_softc *)sc;

	/* Establish the interrupt handler. */
	psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, mb86960_intr,
	    sc);
	if (psc->sc_ih == NULL) {
		printf("%s: couldn't establish interrupt handler\n",
		    sc->sc_dev.dv_xname);
		return (1);
	}

	if (pcmcia_function_enable(psc->sc_pf)) {
		pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
		return (1);
	}

	return (0);
}

void
mbe_pcmcia_disable(sc)
	struct mb86960_softc *sc;
{
	struct mbe_pcmcia_softc *psc = (struct mbe_pcmcia_softc *)sc;

	pcmcia_function_disable(psc->sc_pf);
	pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
}

int
mbe_pcmcia_get_enaddr_from_cis(tuple, arg)
	struct pcmcia_tuple *tuple;
	void *arg;
{
	struct mbe_pcmcia_get_enaddr_args *p = arg;
	int i;

	if (tuple->code == PCMCIA_CISTPL_FUNCE) {
		if (tuple->length < 2) /* sub code and ether addr length */
			return (0);

		if ((pcmcia_tuple_read_1(tuple, 0) !=
			PCMCIA_TPLFE_TYPE_LAN_NID) ||
		    (pcmcia_tuple_read_1(tuple, 1) != ETHER_ADDR_LEN))
			return (0);

		for (i = 0; i < ETHER_ADDR_LEN; i++)
			p->enaddr[i] = pcmcia_tuple_read_1(tuple, i + 2);
		return (1);
	}
	return (0);
}

int
mbe_pcmcia_get_enaddr_from_mem(psc, ea)
	struct mbe_pcmcia_softc *psc;
	struct mbe_pcmcia_get_enaddr_args *ea;
{
	struct mb86960_softc *sc = &psc->sc_mb86960;
	struct pcmcia_mem_handle pcmh;
	bus_addr_t offset;
	int i, mwindow, rv = 1;

	if (ea->maddr < 0)
		goto bad_memaddr;

	if (pcmcia_mem_alloc(psc->sc_pf, ETHER_ADDR_LEN * 2, &pcmh)) {
		printf("%s: can't alloc mem for enet addr\n", 
		    sc->sc_dev.dv_xname);
		goto memalloc_failed;
	}

	if (pcmcia_mem_map(psc->sc_pf, PCMCIA_MEM_ATTR, ea->maddr,
	    ETHER_ADDR_LEN * 2, &pcmh, &offset, &mwindow)) {
		printf("%s: can't map mem for enet addr\n", 
		    sc->sc_dev.dv_xname);
		goto memmap_failed;
	}

	for (i = 0; i < ETHER_ADDR_LEN; i++)
		ea->enaddr[i] = bus_space_read_1(pcmh.memt, pcmh.memh,
		    offset + (i * 2));

	rv = 0;
	pcmcia_mem_unmap(psc->sc_pf, mwindow);
memmap_failed:
	pcmcia_mem_free(psc->sc_pf, &pcmh);
memalloc_failed:
bad_memaddr:

	return (rv);
}