src/sys/dev/pcmcia/if_sm_pcmcia.c

/*	$OpenBSD: if_sm_pcmcia.c,v 1.40 2023/09/11 08:41:27 mvs Exp $	*/
/*	$NetBSD: if_sm_pcmcia.c,v 1.11 1998/08/15 20:47:32 thorpej Exp $  */

/*-
 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
 * NASA Ames Research Center.
 *
 * 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 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 "bpfilter.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/syslog.h>
#include <sys/timeout.h>
#include <sys/device.h>

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

#include <netinet/in.h>
#include <netinet/if_ether.h>

#if NBPFILTER > 0
#include <net/bpf.h>
#endif

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

#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>

#include <dev/ic/smc91cxxvar.h>

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

int	sm_pcmcia_match(struct device *, void *, void *);
void	sm_pcmcia_attach(struct device *, struct device *, void *);
int	sm_pcmcia_detach(struct device *, int);
int	sm_pcmcia_activate(struct device *, int);

struct sm_pcmcia_softc {
	struct	smc91cxx_softc sc_smc;		/* real "smc" 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 */
};

const struct cfattach sm_pcmcia_ca = {
	sizeof(struct sm_pcmcia_softc), sm_pcmcia_match, sm_pcmcia_attach,
	sm_pcmcia_detach, sm_pcmcia_activate
};

int	sm_pcmcia_enable(struct smc91cxx_softc *);
void	sm_pcmcia_disable(struct smc91cxx_softc *);

int	sm_pcmcia_ascii_enaddr(const char *, u_int8_t *);
int	sm_pcmcia_funce_enaddr(struct device *, u_int8_t *);

int	sm_pcmcia_lannid_ciscallback(struct pcmcia_tuple *, void *);

struct sm_pcmcia_product {
	u_int16_t	spp_vendor;	/* vendor ID */
	u_int16_t	spp_product;	/* product ID */
	int		spp_expfunc;	/* expected function */
} sm_pcmcia_prod[] = {
	{ PCMCIA_VENDOR_MEGAHERTZ2,	PCMCIA_PRODUCT_MEGAHERTZ2_XJACK,
	  0 },
	{ PCMCIA_VENDOR_MEGAHERTZ2,	PCMCIA_PRODUCT_MEGAHERTZ2_XJEM1144,
	  0 },
	{ PCMCIA_VENDOR_NEWMEDIA,	PCMCIA_PRODUCT_NEWMEDIA_BASICS,
	  0 },
	{ PCMCIA_VENDOR_SMC,		PCMCIA_PRODUCT_SMC_8020,
	  0 },
	{ PCMCIA_VENDOR_PSION,		PCMCIA_PRODUCT_PSION_GOLDCARD,
	  0 }
};

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

	for (i = 0; i < nitems(sm_pcmcia_prod); i++)
		if (pa->manufacturer == sm_pcmcia_prod[i].spp_vendor &&
		    pa->product == sm_pcmcia_prod[i].spp_product &&
		    pa->pf->number == sm_pcmcia_prod[i].spp_expfunc)
			return (1);
	return (0);
}

void
sm_pcmcia_attach(struct device *parent, struct device *self, void *aux)
{
	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)self;
	struct smc91cxx_softc *sc = &psc->sc_smc;
	struct pcmcia_attach_args *pa = aux;
	struct pcmcia_config_entry *cfe;
	u_int8_t myla[ETHER_ADDR_LEN], *enaddr = NULL;
	const char *intrstr;

	psc->sc_pf = pa->pf;
	cfe = SIMPLEQ_FIRST(&pa->pf->cfe_head);

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

	/* XXX sanity check number of mem and i/o spaces */

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

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

#ifdef notyet
	sc->sc_enable = sm_pcmcia_enable;
	sc->sc_disable = sm_pcmcia_disable;
#endif
	sc->sc_enabled = 1;

	if (pcmcia_io_map(pa->pf, (cfe->flags & PCMCIA_CFE_IO16) ?
	    PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8, 0, cfe->iospace[0].length,
	    &psc->sc_pcioh, &psc->sc_io_window)) {
		printf(": can't map i/o space\n");
		return;
	}

	printf(" port 0x%lx/%lu", psc->sc_pcioh.addr,
	    (u_long)psc->sc_pcioh.size);

	/*
	 * First try to get the Ethernet address from FUNCE/LANNID tuple.
	 */
	if (sm_pcmcia_funce_enaddr(parent, myla))
		enaddr = myla;

	/*
	 * If that failed, try one of the CIS info strings.
	 */
	if (enaddr == NULL) {
		char *cisstr = NULL;

		switch (pa->manufacturer) {
		case PCMCIA_VENDOR_MEGAHERTZ2:
			cisstr = pa->pf->sc->card.cis1_info[3];
			break;
		case PCMCIA_VENDOR_SMC:
			cisstr = pa->pf->sc->card.cis1_info[2];
			break;
		}
		if (cisstr != NULL && sm_pcmcia_ascii_enaddr(cisstr, myla))
			enaddr = myla;
	}

	if (enaddr == NULL)
		printf(", unable to get Ethernet address\n");

	psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET,
	    smc91cxx_intr, sc, sc->sc_dev.dv_xname);
	intrstr = pcmcia_intr_string(psc->sc_pf, psc->sc_ih);
	if (*intrstr)
		printf(", %s", intrstr);

	/* Perform generic initialization. */
	smc91cxx_attach(sc, enaddr);

#ifdef notyet
	pcmcia_function_disable(pa->pf);
#endif
}

int
sm_pcmcia_detach(struct device *dev, int flags)
{
	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)dev;
	struct ifnet *ifp = &psc->sc_smc.sc_arpcom.ac_if;
	int rv = 0;

	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);

	ether_ifdetach(ifp);
	if_detach(ifp);

	return (rv);
}

int
sm_pcmcia_activate(struct device *dev, int act)
{
	struct sm_pcmcia_softc *sc = (struct sm_pcmcia_softc *)dev;
	struct ifnet *ifp = &sc->sc_smc.sc_arpcom.ac_if;

	switch (act) {
	case DVACT_DEACTIVATE:
		ifp->if_timer = 0;
		if (ifp->if_flags & IFF_RUNNING)
			smc91cxx_stop(&sc->sc_smc);
		if (sc->sc_ih)
			pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
		sc->sc_ih = NULL;
		pcmcia_function_disable(sc->sc_pf);
		break;
	}
	return (0);
}

int
sm_pcmcia_ascii_enaddr(const char *cisstr, u_int8_t *myla)
{
	char enaddr_str[12];
	int i, j;

	if (strlen(cisstr) != 12) {
		/* Bogus address! */
		return (0);
	}
	bcopy(cisstr, enaddr_str, sizeof enaddr_str);
	for (i = 0; i < 6; i++) {
		for (j = 0; j < 2; j++) {
			/* Convert to upper case. */
			if (enaddr_str[(i * 2) + j] >= 'a' &&
			    enaddr_str[(i * 2) + j] <= 'z')
				enaddr_str[(i * 2) + j] -= 'a' - 'A';

			/* Parse the digit. */
			if (enaddr_str[(i * 2) + j] >= '0' &&
			    enaddr_str[(i * 2) + j] <= '9')
				myla[i] |= enaddr_str[(i * 2) + j]
				    - '0';
			else if (enaddr_str[(i * 2) + j] >= 'A' &&
				 enaddr_str[(i * 2) + j] <= 'F')
				myla[i] |= enaddr_str[(i * 2) + j]
				    - 'A' + 10;
			else {
				/* Bogus digit!! */
				return (0);
			}

			/* Compensate for ordering of digits. */
			if (j == 0)
				myla[i] <<= 4;
		}
	}

	return (1);
}

int
sm_pcmcia_funce_enaddr(struct device *parent, u_int8_t *myla)
{

	return (pcmcia_scan_cis(parent, sm_pcmcia_lannid_ciscallback, myla));
}

int
sm_pcmcia_lannid_ciscallback(struct pcmcia_tuple *tuple, void *arg)
{
	u_int8_t *myla = arg;
	int i;

	if (tuple->code == PCMCIA_CISTPL_FUNCE || tuple->code ==
	    PCMCIA_CISTPL_SPCL) {
		/* subcode, length */
		if (tuple->length < 2)
			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++)
			myla[i] = pcmcia_tuple_read_1(tuple, i + 2);
		return (1);
	}
	return (0);
}

int
sm_pcmcia_enable(struct smc91cxx_softc *sc)
{
	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)sc;

	/* Establish the interrupt handler. */
	psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, smc91cxx_intr,
	    sc, sc->sc_dev.dv_xname);
	if (psc->sc_ih == NULL) {
		printf("%s: couldn't establish interrupt handler\n",
		    sc->sc_dev.dv_xname);
		return (1);
	}

	return (pcmcia_function_enable(psc->sc_pf));
}

void
sm_pcmcia_disable(struct smc91cxx_softc *sc)
{
	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)sc;

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