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if_ep_pcmcia.c revision 1.16
      1 /*	$NetBSD: if_ep_pcmcia.c,v 1.16 1998/08/17 23:20:40 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 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 /*
     41  * Copyright (c) 1997 Marc Horowitz.  All rights reserved.
     42  *
     43  * Redistribution and use in source and binary forms, with or without
     44  * modification, are permitted provided that the following conditions
     45  * are met:
     46  * 1. Redistributions of source code must retain the above copyright
     47  *    notice, this list of conditions and the following disclaimer.
     48  * 2. Redistributions in binary form must reproduce the above copyright
     49  *    notice, this list of conditions and the following disclaimer in the
     50  *    documentation and/or other materials provided with the distribution.
     51  * 3. All advertising materials mentioning features or use of this software
     52  *    must display the following acknowledgement:
     53  *	This product includes software developed by Marc Horowitz.
     54  * 4. The name of the author may not be used to endorse or promote products
     55  *    derived from this software without specific prior written permission.
     56  *
     57  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     58  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     59  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     60  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     61  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     62  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     63  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     64  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     65  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     66  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     67  */
     68 
     69 #include "opt_inet.h"
     70 #include "opt_ns.h"
     71 #include "bpfilter.h"
     72 
     73 #include <sys/param.h>
     74 #include <sys/systm.h>
     75 #include <sys/mbuf.h>
     76 #include <sys/socket.h>
     77 #include <sys/ioctl.h>
     78 #include <sys/errno.h>
     79 #include <sys/syslog.h>
     80 #include <sys/select.h>
     81 #include <sys/device.h>
     82 
     83 #include <net/if.h>
     84 #include <net/if_dl.h>
     85 #include <net/if_ether.h>
     86 #include <net/if_media.h>
     87 
     88 #ifdef INET
     89 #include <netinet/in.h>
     90 #include <netinet/in_systm.h>
     91 #include <netinet/in_var.h>
     92 #include <netinet/ip.h>
     93 #include <netinet/if_inarp.h>
     94 #endif
     95 
     96 #ifdef NS
     97 #include <netns/ns.h>
     98 #include <netns/ns_if.h>
     99 #endif
    100 
    101 #if NBPFILTER > 0
    102 #include <net/bpf.h>
    103 #include <net/bpfdesc.h>
    104 #endif
    105 
    106 #include <machine/cpu.h>
    107 #include <machine/bus.h>
    108 #include <machine/intr.h>
    109 
    110 #include <dev/mii/miivar.h>
    111 
    112 #include <dev/ic/elink3var.h>
    113 #include <dev/ic/elink3reg.h>
    114 
    115 #include <dev/pcmcia/pcmciareg.h>
    116 #include <dev/pcmcia/pcmciavar.h>
    117 #include <dev/pcmcia/pcmciadevs.h>
    118 
    119 int	ep_pcmcia_match __P((struct device *, struct cfdata *, void *));
    120 void	ep_pcmcia_attach __P((struct device *, struct device *, void *));
    121 
    122 int	ep_pcmcia_get_enaddr __P((struct pcmcia_tuple *, void *));
    123 int	ep_pcmcia_enable __P((struct ep_softc *));
    124 void	ep_pcmcia_disable __P((struct ep_softc *));
    125 
    126 int	ep_pcmcia_enable1 __P((struct ep_softc *));
    127 void	ep_pcmcia_disable1 __P((struct ep_softc *));
    128 
    129 struct ep_pcmcia_softc {
    130 	struct ep_softc sc_ep;			/* real "ep" softc */
    131 
    132 	/* PCMCIA-specific goo */
    133 	struct pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
    134 	int sc_io_window;			/* our i/o window */
    135 	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
    136 };
    137 
    138 struct cfattach ep_pcmcia_ca = {
    139 	sizeof(struct ep_pcmcia_softc), ep_pcmcia_match, ep_pcmcia_attach
    140 };
    141 
    142 struct ep_pcmcia_product {
    143 	u_int32_t	epp_product;	/* PCMCIA product ID */
    144 	u_short		epp_chipset;	/* 3Com chipset used */
    145 	int		epp_flags;	/* initial softc flags */
    146 	int		epp_expfunc;	/* expected function */
    147 	const char	*epp_name;	/* device name */
    148 } ep_pcmcia_products[] = {
    149 	{ PCMCIA_PRODUCT_3COM_3C562,	EP_CHIPSET_3C509,
    150 	  0,				0,
    151 	  PCMCIA_STR_3COM_3C562 },
    152 	{ PCMCIA_PRODUCT_3COM_3C589,	EP_CHIPSET_3C509,
    153 	  0,				0,
    154 	  PCMCIA_STR_3COM_3C589 },
    155 
    156 	{ PCMCIA_PRODUCT_3COM_3C574,	EP_CHIPSET_ROADRUNNER,
    157 	  EP_FLAGS_MII,			0,
    158 	  PCMCIA_STR_3COM_3C574 },
    159 
    160 	{ 0,				0,
    161 	  0,				0,
    162 	  NULL },
    163 };
    164 
    165 struct ep_pcmcia_product *ep_pcmcia_lookup __P((struct pcmcia_attach_args *));
    166 
    167 struct ep_pcmcia_product *
    168 ep_pcmcia_lookup(pa)
    169 	struct pcmcia_attach_args *pa;
    170 {
    171 	struct ep_pcmcia_product *epp;
    172 
    173 	for (epp = ep_pcmcia_products; epp->epp_name != NULL; epp++)
    174 		if (pa->product == epp->epp_product &&
    175 		    pa->pf->number == epp->epp_expfunc)
    176 			return (epp);
    177 
    178 	return (NULL);
    179 }
    180 
    181 int
    182 ep_pcmcia_match(parent, match, aux)
    183 	struct device *parent;
    184 	struct cfdata *match;
    185 	void *aux;
    186 {
    187 	struct pcmcia_attach_args *pa = aux;
    188 
    189 	if (pa->manufacturer != PCMCIA_VENDOR_3COM)
    190 		return (0);
    191 
    192 	if (ep_pcmcia_lookup(pa) != NULL)
    193 		return (1);
    194 
    195 	return (0);
    196 }
    197 
    198 int
    199 ep_pcmcia_enable(sc)
    200 	struct ep_softc *sc;
    201 {
    202 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    203 	struct pcmcia_function *pf = psc->sc_pf;
    204 
    205 	/* establish the interrupt. */
    206 	sc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, epintr, sc);
    207 	if (sc->sc_ih == NULL) {
    208 		printf("%s: couldn't establish interrupt\n",
    209 		    sc->sc_dev.dv_xname);
    210 		return (1);
    211 	}
    212 
    213 	return (ep_pcmcia_enable1(sc));
    214 }
    215 
    216 int
    217 ep_pcmcia_enable1(sc)
    218 	struct ep_softc *sc;
    219 {
    220 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    221 	struct pcmcia_function *pf = psc->sc_pf;
    222 	int ret;
    223 
    224 	if ((ret = pcmcia_function_enable(pf)))
    225 		return (ret);
    226 
    227 	if (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) {
    228 		int reg;
    229 
    230 		/* turn off the serial-disable bit */
    231 
    232 		reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
    233 		if (reg & 0x08) {
    234 			reg &= ~0x08;
    235 			pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
    236 		}
    237 
    238 	}
    239 
    240 	return (ret);
    241 }
    242 
    243 void
    244 ep_pcmcia_disable(sc)
    245 	struct ep_softc *sc;
    246 {
    247 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    248 
    249 	ep_pcmcia_disable1(sc);
    250 	pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih);
    251 }
    252 
    253 void
    254 ep_pcmcia_disable1(sc)
    255 	struct ep_softc *sc;
    256 {
    257 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    258 
    259 	pcmcia_function_disable(psc->sc_pf);
    260 }
    261 
    262 void
    263 ep_pcmcia_attach(parent, self, aux)
    264 	struct device  *parent, *self;
    265 	void           *aux;
    266 {
    267 	struct ep_pcmcia_softc *psc = (void *) self;
    268 	struct ep_softc *sc = &psc->sc_ep;
    269 	struct pcmcia_attach_args *pa = aux;
    270 	struct pcmcia_config_entry *cfe;
    271 	struct ep_pcmcia_product *epp;
    272 	u_int8_t myla[ETHER_ADDR_LEN];
    273 	u_int8_t *enaddr = NULL;
    274 	int i;
    275 
    276 	psc->sc_pf = pa->pf;
    277 	cfe = pa->pf->cfe_head.sqh_first;
    278 
    279 	/* Enable the card. */
    280 	pcmcia_function_init(pa->pf, cfe);
    281 	if (ep_pcmcia_enable1(sc))
    282 		printf(": function enable failed\n");
    283 
    284 	sc->enabled = 1;
    285 
    286 	if (cfe->num_memspace != 0)
    287 		printf(": unexpected number of memory spaces %d should be 0\n",
    288 		    cfe->num_memspace);
    289 
    290 	if (cfe->num_iospace != 1)
    291 		printf(": unexpected number of I/O spaces %d should be 1\n",
    292 		    cfe->num_iospace);
    293 
    294 	if (pa->product == PCMCIA_PRODUCT_3COM_3C562) {
    295 		bus_addr_t maxaddr = (pa->pf->sc->iobase + pa->pf->sc->iosize);
    296 
    297 		for (i = pa->pf->sc->iobase; i < maxaddr; i += 0x10) {
    298 			/*
    299 			 * the 3c562 can only use 0x??00-0x??7f
    300 			 * according to the Linux driver
    301 			 */
    302 			if (i & 0x80)
    303 				continue;
    304 			if (pcmcia_io_alloc(pa->pf, i, cfe->iospace[0].length,
    305 			    0, &psc->sc_pcioh) == 0)
    306 				break;
    307 		}
    308 		if (i >= maxaddr) {
    309 			printf(": can't allocate i/o space\n");
    310 			return;
    311 		}
    312 	} else {
    313 		if (pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length,
    314 		    cfe->iospace[0].length, &psc->sc_pcioh))
    315 			printf(": can't allocate i/o space\n");
    316 	}
    317 
    318 	sc->sc_iot = psc->sc_pcioh.iot;
    319 	sc->sc_ioh = psc->sc_pcioh.ioh;
    320 
    321 	if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ?
    322 	    PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, cfe->iospace[0].length,
    323 	    &psc->sc_pcioh, &psc->sc_io_window)) {
    324 		printf(": can't map i/o space\n");
    325 		return;
    326 	}
    327 
    328 	switch (pa->product) {
    329 	case PCMCIA_PRODUCT_3COM_3C562:
    330 		/*
    331 		 * 3c562a-c use this; 3c562d does it in the regular way.
    332 		 * we might want to check the revision and produce a warning
    333 		 * in the future.
    334 		 */
    335 		/* FALLTHROUGH */
    336 	case PCMCIA_PRODUCT_3COM_3C574:
    337 		/*
    338 		 * Apparently, some 3c574s do it this way, as well.
    339 		 */
    340 		if (pcmcia_scan_cis(parent, ep_pcmcia_get_enaddr, myla))
    341 			enaddr = myla;
    342 		break;
    343 	}
    344 
    345 	sc->bustype = EP_BUS_PCMCIA;
    346 
    347 	epp = ep_pcmcia_lookup(pa);
    348 	if (epp == NULL)
    349 		panic("ep_pcmcia_attach: impossible");
    350 
    351 	printf(": %s\n", epp->epp_name);
    352 
    353 	sc->enable = ep_pcmcia_enable;
    354 	sc->disable = ep_pcmcia_disable;
    355 
    356 	epconfig(sc, epp->epp_chipset, enaddr);
    357 
    358 	sc->enabled = 0;
    359 
    360 	ep_pcmcia_disable1(sc);
    361 }
    362 
    363 int
    364 ep_pcmcia_get_enaddr(tuple, arg)
    365 	struct pcmcia_tuple *tuple;
    366 	void *arg;
    367 {
    368 	u_int8_t *myla = arg;
    369 	int i;
    370 
    371 	/* this is 3c562a-c magic */
    372 	if (tuple->code == 0x88) {
    373 		if (tuple->length < ETHER_ADDR_LEN)
    374 			return (0);
    375 
    376 		for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
    377 			myla[i] = pcmcia_tuple_read_1(tuple, i + 1);
    378 			myla[i + 1] = pcmcia_tuple_read_1(tuple, i);
    379 		}
    380 
    381 		return (1);
    382 	}
    383 	return (0);
    384 }
    385