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if_sm_pcmcia.c revision 1.18
      1 /*	$NetBSD: if_sm_pcmcia.c,v 1.18 1999/09/28 23:20:42 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9  * NASA Ames Research Center.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the NetBSD
     22  *	Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 #include "opt_inet.h"
     41 #include "opt_ns.h"
     42 #include "bpfilter.h"
     43 
     44 #include <sys/param.h>
     45 #include <sys/systm.h>
     46 #include <sys/mbuf.h>
     47 #include <sys/socket.h>
     48 #include <sys/ioctl.h>
     49 #include <sys/errno.h>
     50 #include <sys/syslog.h>
     51 #include <sys/select.h>
     52 #include <sys/device.h>
     53 
     54 #include <net/if.h>
     55 #include <net/if_dl.h>
     56 #include <net/if_ether.h>
     57 #include <net/if_media.h>
     58 
     59 #ifdef INET
     60 #include <netinet/in.h>
     61 #include <netinet/in_systm.h>
     62 #include <netinet/in_var.h>
     63 #include <netinet/ip.h>
     64 #include <netinet/if_inarp.h>
     65 #endif
     66 
     67 #ifdef NS
     68 #include <netns/ns.h>
     69 #include <netns/ns_if.h>
     70 #endif
     71 
     72 #if NBPFILTER > 0
     73 #include <net/bpf.h>
     74 #include <net/bpfdesc.h>
     75 #endif
     76 
     77 #include <machine/intr.h>
     78 #include <machine/bus.h>
     79 
     80 #include <dev/ic/smc91cxxreg.h>
     81 #include <dev/ic/smc91cxxvar.h>
     82 
     83 #include <dev/pcmcia/pcmciareg.h>
     84 #include <dev/pcmcia/pcmciavar.h>
     85 #include <dev/pcmcia/pcmciadevs.h>
     86 
     87 int	sm_pcmcia_match __P((struct device *, struct cfdata *, void *));
     88 void	sm_pcmcia_attach __P((struct device *, struct device *, void *));
     89 int	sm_pcmcia_detach __P((struct device *, int));
     90 
     91 struct sm_pcmcia_softc {
     92 	struct	smc91cxx_softc sc_smc;		/* real "smc" softc */
     93 
     94 	/* PCMCIA-specific goo. */
     95 	struct	pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
     96 	int	sc_io_window;			/* our i/o window */
     97 	void	*sc_ih;				/* interrupt cookie */
     98 	struct	pcmcia_function *sc_pf;		/* our PCMCIA function */
     99 };
    100 
    101 struct cfattach sm_pcmcia_ca = {
    102 	sizeof(struct sm_pcmcia_softc), sm_pcmcia_match, sm_pcmcia_attach,
    103 	    sm_pcmcia_detach, smc91cxx_activate
    104 };
    105 
    106 int	sm_pcmcia_enable __P((struct smc91cxx_softc *));
    107 void	sm_pcmcia_disable __P((struct smc91cxx_softc *));
    108 
    109 int	sm_pcmcia_ascii_enaddr __P((const char *, u_int8_t *));
    110 int	sm_pcmcia_funce_enaddr __P((struct device *, u_int8_t *));
    111 
    112 int	sm_pcmcia_lannid_ciscallback __P((struct pcmcia_tuple *, void *));
    113 
    114 struct sm_pcmcia_product {
    115 	u_int32_t	spp_vendor;	/* vendor ID */
    116 	u_int32_t	spp_product;	/* product ID */
    117 	int		spp_expfunc;	/* expected function */
    118 	const char	*spp_name;	/* product name */
    119 } sm_pcmcia_products[] = {
    120 	{ PCMCIA_VENDOR_MEGAHERTZ2,	PCMCIA_PRODUCT_MEGAHERTZ2_XJACK,
    121 	  0,				PCMCIA_STR_MEGAHERTZ2_XJACK },
    122 
    123 	{ PCMCIA_VENDOR_NEWMEDIA,	PCMCIA_PRODUCT_NEWMEDIA_BASICS,
    124 	  0,				PCMCIA_STR_NEWMEDIA_BASICS },
    125 
    126 #if 0
    127 	{ PCMCIA_VENDOR_SMC,		PCMCIA_PRODUCT_SMC_8020BT,
    128 	  0,				PCMCIA_STR_SMC_8020BT },
    129 #endif
    130 
    131 	{ 0,				0,
    132 	  0,				NULL },
    133 };
    134 
    135 struct sm_pcmcia_product *sm_pcmcia_lookup __P((struct pcmcia_attach_args *));
    136 
    137 struct sm_pcmcia_product *
    138 sm_pcmcia_lookup(pa)
    139 	struct pcmcia_attach_args *pa;
    140 {
    141 	struct sm_pcmcia_product *spp;
    142 
    143 	for (spp = sm_pcmcia_products; spp->spp_name != NULL; spp++)
    144 		if (pa->manufacturer == spp->spp_vendor &&
    145 		    pa->product == spp->spp_product &&
    146 		    pa->pf->number == spp->spp_expfunc)
    147 			return (spp);
    148 	return (NULL);
    149 }
    150 
    151 int
    152 sm_pcmcia_match(parent, match, aux)
    153 	struct device *parent;
    154 	struct cfdata *match;
    155 	void *aux;
    156 {
    157 	struct pcmcia_attach_args *pa = aux;
    158 
    159 	if (sm_pcmcia_lookup(pa) != NULL)
    160 		return (1);
    161 	return (0);
    162 }
    163 
    164 void
    165 sm_pcmcia_attach(parent, self, aux)
    166 	struct device *parent, *self;
    167 	void *aux;
    168 {
    169 	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)self;
    170 	struct smc91cxx_softc *sc = &psc->sc_smc;
    171 	struct pcmcia_attach_args *pa = aux;
    172 	struct pcmcia_config_entry *cfe;
    173 	u_int8_t myla[ETHER_ADDR_LEN], *enaddr = NULL;
    174 	struct sm_pcmcia_product *spp;
    175 
    176 	psc->sc_pf = pa->pf;
    177 	cfe = pa->pf->cfe_head.sqh_first;
    178 
    179 	/* Enable the card. */
    180 	pcmcia_function_init(pa->pf, cfe);
    181 	if (pcmcia_function_enable(pa->pf)) {
    182 		printf(": function enable failed\n");
    183 		return;
    184 	}
    185 
    186 	/* XXX sanity check number of mem and i/o spaces */
    187 
    188 	/* Allocate and map i/o space for the card. */
    189 	if (pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length,
    190 	    cfe->iospace[0].length, &psc->sc_pcioh)) {
    191 		printf(": can't allocate i/o space\n");
    192 		return;
    193 	}
    194 
    195 	sc->sc_bst = psc->sc_pcioh.iot;
    196 	sc->sc_bsh = psc->sc_pcioh.ioh;
    197 
    198 	sc->sc_enable = sm_pcmcia_enable;
    199 	sc->sc_disable = sm_pcmcia_disable;
    200 
    201 	if (pcmcia_io_map(pa->pf, (cfe->flags & PCMCIA_CFE_IO16) ?
    202 	    PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8, 0, cfe->iospace[0].length,
    203 	    &psc->sc_pcioh, &psc->sc_io_window)) {
    204 		printf(": can't map i/o space\n");
    205 		return;
    206 	}
    207 
    208 	spp = sm_pcmcia_lookup(pa);
    209 	if (spp == NULL)
    210 		panic("sm_pcmcia_attach: impossible");
    211 
    212 	printf(": %s\n", spp->spp_name);
    213 
    214 	/*
    215 	 * First try to get the Ethernet address from FUNCE/LANNID tuple.
    216 	 */
    217 	if (sm_pcmcia_funce_enaddr(parent, myla))
    218 		enaddr = myla;
    219 
    220 	/*
    221 	 * If that failed, try one of the CIS info strings.
    222 	 */
    223 	if (enaddr == NULL) {
    224 		char *cisstr = NULL;
    225 
    226 		switch (pa->manufacturer) {
    227 		case PCMCIA_VENDOR_MEGAHERTZ:
    228 		case PCMCIA_VENDOR_MEGAHERTZ2:
    229 			cisstr = pa->pf->sc->card.cis1_info[3];
    230 			break;
    231 
    232 		case PCMCIA_VENDOR_SMC:
    233 			cisstr = pa->pf->sc->card.cis1_info[2];
    234 			break;
    235 		}
    236 
    237 		if (cisstr != NULL && sm_pcmcia_ascii_enaddr(cisstr, myla))
    238 			enaddr = myla;
    239 	}
    240 
    241 	if (enaddr == NULL)
    242 		printf("%s: unable to get Ethernet address\n",
    243 		    sc->sc_dev.dv_xname);
    244 
    245 	/* Perform generic intialization. */
    246 	smc91cxx_attach(sc, enaddr);
    247 
    248 	pcmcia_function_disable(pa->pf);
    249 }
    250 
    251 int
    252 sm_pcmcia_detach(self, flags)
    253 	struct device *self;
    254 	int flags;
    255 {
    256 	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)self;
    257 
    258 	/* Unmap our i/o window. */
    259 	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
    260 
    261 	/* Free our i/o space. */
    262 	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
    263 
    264 #ifdef notyet
    265 	/*
    266 	 * Our softc is about to go away, so drop our reference
    267 	 * to the ifnet.
    268 	 */
    269 	if_delref(psc->sc_smc.sc_ec.ec_if);
    270 	return (0);
    271 #else
    272 	return (EBUSY);
    273 #endif
    274 }
    275 
    276 int
    277 sm_pcmcia_ascii_enaddr(cisstr, myla)
    278 	const char *cisstr;
    279 	u_int8_t *myla;
    280 {
    281 	u_int8_t digit;
    282 	int i;
    283 
    284 	memset(myla, 0, ETHER_ADDR_LEN);
    285 
    286 	for (i = 0, digit = 0; i < (ETHER_ADDR_LEN * 2); i++) {
    287 		if (cisstr[i] >= '0' && cisstr[i] <= '9')
    288 			digit |= cisstr[i] - '0';
    289 		else if (cisstr[i] >= 'a' && cisstr[i] <= 'f')
    290 			digit |= (cisstr[i] - 'a') + 10;
    291 		else if (cisstr[i] >= 'A' && cisstr[i] <= 'F')
    292 			digit |= (cisstr[i] - 'A') + 10;
    293 		else {
    294 			/* Bogus digit!! */
    295 			return (0);
    296 		}
    297 
    298 		/* Compensate for ordering of digits. */
    299 		if (i & 1) {
    300 			myla[i >> 1] = digit;
    301 			digit = 0;
    302 		} else
    303 			digit <<= 4;
    304 	}
    305 
    306 	return (1);
    307 }
    308 
    309 int
    310 sm_pcmcia_funce_enaddr(parent, myla)
    311 	struct device *parent;
    312 	u_int8_t *myla;
    313 {
    314 
    315 	return (pcmcia_scan_cis(parent, sm_pcmcia_lannid_ciscallback, myla));
    316 }
    317 
    318 int
    319 sm_pcmcia_lannid_ciscallback(tuple, arg)
    320 	struct pcmcia_tuple *tuple;
    321 	void *arg;
    322 {
    323 	u_int8_t *myla = arg;
    324 	int i;
    325 
    326 	if (tuple->code == PCMCIA_CISTPL_FUNCE) {
    327 		/* subcode, length */
    328 		if (tuple->length < 2)
    329 			return (0);
    330 
    331 		if ((pcmcia_tuple_read_1(tuple, 0) !=
    332 		     PCMCIA_TPLFE_TYPE_LAN_NID) ||
    333 		    (pcmcia_tuple_read_1(tuple, 1) != ETHER_ADDR_LEN))
    334 			return (0);
    335 
    336 		for (i = 0; i < ETHER_ADDR_LEN; i++)
    337 			myla[i] = pcmcia_tuple_read_1(tuple, i + 2);
    338 		return (1);
    339 	}
    340 	return (0);
    341 }
    342 
    343 int
    344 sm_pcmcia_enable(sc)
    345 	struct smc91cxx_softc *sc;
    346 {
    347 	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)sc;
    348 
    349 	/* Establish the interrupt handler. */
    350 	psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, smc91cxx_intr,
    351 	    sc);
    352 	if (psc->sc_ih == NULL) {
    353 		printf("%s: couldn't establish interrupt handler\n",
    354 		    sc->sc_dev.dv_xname);
    355 		return (1);
    356 	}
    357 
    358 	return (pcmcia_function_enable(psc->sc_pf));
    359 }
    360 
    361 void
    362 sm_pcmcia_disable(sc)
    363 	struct smc91cxx_softc *sc;
    364 {
    365 	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)sc;
    366 
    367 	pcmcia_function_disable(psc->sc_pf);
    368 
    369 	pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
    370 }
    371