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if_ep_pcmcia.c revision 1.29
      1 /*	$NetBSD: if_ep_pcmcia.c,v 1.29 2000/02/04 01:27:12 cgd Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998, 2000 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 int	ep_pcmcia_detach __P((struct device *, int));
    122 
    123 int	ep_pcmcia_get_enaddr __P((struct pcmcia_tuple *, void *));
    124 int	ep_pcmcia_enable __P((struct ep_softc *));
    125 void	ep_pcmcia_disable __P((struct ep_softc *));
    126 
    127 int	ep_pcmcia_enable1 __P((struct ep_softc *));
    128 void	ep_pcmcia_disable1 __P((struct ep_softc *));
    129 
    130 struct ep_pcmcia_softc {
    131 	struct ep_softc sc_ep;			/* real "ep" softc */
    132 
    133 	/* PCMCIA-specific goo */
    134 	struct pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
    135 	int sc_io_window;			/* our i/o window */
    136 	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
    137 };
    138 
    139 struct cfattach ep_pcmcia_ca = {
    140 	sizeof(struct ep_pcmcia_softc), ep_pcmcia_match, ep_pcmcia_attach,
    141 	    ep_pcmcia_detach, ep_activate
    142 };
    143 
    144 const struct ep_pcmcia_product {
    145 	struct pcmcia_product epp_product;
    146 	u_short		epp_chipset;	/* 3Com chipset used */
    147 	int		epp_flags;	/* initial softc flags */
    148 } ep_pcmcia_products[] = {
    149 	{ { PCMCIA_STR_3COM_3C562,		PCMCIA_VENDOR_3COM,
    150 	    PCMCIA_PRODUCT_3COM_3C562,		0 },
    151 	  ELINK_CHIPSET_3C509, 0 },
    152 
    153 	{ { PCMCIA_STR_3COM_3C589,		PCMCIA_VENDOR_3COM,
    154 	    PCMCIA_PRODUCT_3COM_3C589,		0 },
    155 	  ELINK_CHIPSET_3C509, 0 },
    156 
    157 	{ { PCMCIA_STR_3COM_3CXEM556,		PCMCIA_VENDOR_3COM,
    158 	    PCMCIA_PRODUCT_3COM_3CXEM556,	0 },
    159 	  ELINK_CHIPSET_3C509, 0 },
    160 
    161 	{ { PCMCIA_STR_3COM_3CXEM556INT,	PCMCIA_VENDOR_3COM,
    162 	    PCMCIA_PRODUCT_3COM_3CXEM556INT,	0 },
    163 	  ELINK_CHIPSET_3C509, 0 },
    164 
    165 	{ { PCMCIA_STR_3COM_3C574,		PCMCIA_VENDOR_3COM,
    166 	    PCMCIA_PRODUCT_3COM_3C574,		0 },
    167 	  ELINK_CHIPSET_ROADRUNNER, ELINK_FLAGS_MII },
    168 
    169 	{ { PCMCIA_STR_3COM_3CCFEM556BI,	PCMCIA_VENDOR_3COM,
    170 	    PCMCIA_PRODUCT_3COM_3CCFEM556BI,	0 },
    171 	  ELINK_CHIPSET_ROADRUNNER, ELINK_FLAGS_MII },
    172 
    173 	{ { NULL } }
    174 };
    175 
    176 int
    177 ep_pcmcia_match(parent, match, aux)
    178 	struct device *parent;
    179 	struct cfdata *match;
    180 	void *aux;
    181 {
    182 	struct pcmcia_attach_args *pa = aux;
    183 
    184 	if (pcmcia_product_lookup(pa,
    185 	    (const struct pcmcia_product *)ep_pcmcia_products,
    186 	    sizeof ep_pcmcia_products[0], NULL) != NULL)
    187 		return (1);
    188 
    189 	return (0);
    190 }
    191 
    192 int
    193 ep_pcmcia_enable(sc)
    194 	struct ep_softc *sc;
    195 {
    196 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    197 	struct pcmcia_function *pf = psc->sc_pf;
    198 
    199 	/* establish the interrupt. */
    200 	sc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, epintr, sc);
    201 	if (sc->sc_ih == NULL) {
    202 		printf("%s: couldn't establish interrupt\n",
    203 		    sc->sc_dev.dv_xname);
    204 		return (1);
    205 	}
    206 
    207 	return (ep_pcmcia_enable1(sc));
    208 }
    209 
    210 int
    211 ep_pcmcia_enable1(sc)
    212 	struct ep_softc *sc;
    213 {
    214 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    215 	struct pcmcia_function *pf = psc->sc_pf;
    216 	int ret;
    217 
    218 	if ((ret = pcmcia_function_enable(pf)))
    219 		return (ret);
    220 
    221 	if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) ||
    222 	    (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) ||
    223 	    (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) {
    224 		int reg;
    225 
    226 		/* turn off the serial-disable bit */
    227 
    228 		reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
    229 		if (reg & 0x08) {
    230 			reg &= ~0x08;
    231 			pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
    232 		}
    233 
    234 	}
    235 
    236 	return (ret);
    237 }
    238 
    239 void
    240 ep_pcmcia_disable(sc)
    241 	struct ep_softc *sc;
    242 {
    243 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    244 
    245 	ep_pcmcia_disable1(sc);
    246 	if (sc->sc_ih != NULL)
    247 		pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih);
    248 	sc->sc_ih = NULL;
    249 }
    250 
    251 void
    252 ep_pcmcia_disable1(sc)
    253 	struct ep_softc *sc;
    254 {
    255 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    256 
    257 	pcmcia_function_disable(psc->sc_pf);
    258 }
    259 
    260 void
    261 ep_pcmcia_attach(parent, self, aux)
    262 	struct device  *parent, *self;
    263 	void           *aux;
    264 {
    265 	struct ep_pcmcia_softc *psc = (void *) self;
    266 	struct ep_softc *sc = &psc->sc_ep;
    267 	struct pcmcia_attach_args *pa = aux;
    268 	struct pcmcia_config_entry *cfe;
    269 	const struct ep_pcmcia_product *epp;
    270 	u_int8_t myla[ETHER_ADDR_LEN];
    271 	u_int8_t *enaddr = NULL;
    272 	int i;
    273 
    274 	psc->sc_pf = pa->pf;
    275 	cfe = pa->pf->cfe_head.sqh_first;
    276 
    277 	/* Enable the card. */
    278 	pcmcia_function_init(pa->pf, cfe);
    279 	if (ep_pcmcia_enable1(sc))
    280 		printf(": function enable failed\n");
    281 
    282 	sc->enabled = 1;
    283 
    284 	if (cfe->num_memspace != 0)
    285 		printf(": unexpected number of memory spaces %d should be 0\n",
    286 		    cfe->num_memspace);
    287 
    288 	if (cfe->num_iospace != 1)
    289 		printf(": unexpected number of I/O spaces %d should be 1\n",
    290 		    cfe->num_iospace);
    291 
    292 	if (pa->product == PCMCIA_PRODUCT_3COM_3C562) {
    293 		bus_addr_t maxaddr = (pa->pf->sc->iobase + pa->pf->sc->iosize);
    294 
    295 		for (i = pa->pf->sc->iobase; i < maxaddr; i += 0x10) {
    296 			/*
    297 			 * the 3c562 can only use 0x??00-0x??7f
    298 			 * according to the Linux driver
    299 			 */
    300 			if (i & 0x80)
    301 				continue;
    302 			if (pcmcia_io_alloc(pa->pf, i, cfe->iospace[0].length,
    303 			    0, &psc->sc_pcioh) == 0)
    304 				break;
    305 		}
    306 		if (i >= maxaddr) {
    307 			printf(": can't allocate i/o space\n");
    308 			return;
    309 		}
    310 	} else {
    311 		if (pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length,
    312 		    cfe->iospace[0].length, &psc->sc_pcioh))
    313 			printf(": can't allocate i/o space\n");
    314 	}
    315 
    316 	sc->sc_iot = psc->sc_pcioh.iot;
    317 	sc->sc_ioh = psc->sc_pcioh.ioh;
    318 
    319 	if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ?
    320 	    PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, cfe->iospace[0].length,
    321 	    &psc->sc_pcioh, &psc->sc_io_window)) {
    322 		printf(": can't map i/o space\n");
    323 		return;
    324 	}
    325 
    326 	switch (pa->product) {
    327 	case PCMCIA_PRODUCT_3COM_3C562:
    328 		/*
    329 		 * 3c562a-c use this; 3c562d does it in the regular way.
    330 		 * we might want to check the revision and produce a warning
    331 		 * in the future.
    332 		 */
    333 		/* FALLTHROUGH */
    334 	case PCMCIA_PRODUCT_3COM_3C574:
    335 	case PCMCIA_PRODUCT_3COM_3CCFEM556BI:
    336 		/*
    337 		 * Apparently, some 3c574s do it this way, as well.
    338 		 */
    339 		if (pcmcia_scan_cis(parent, ep_pcmcia_get_enaddr, myla))
    340 			enaddr = myla;
    341 		break;
    342 	}
    343 
    344 	epp = (const struct ep_pcmcia_product *)pcmcia_product_lookup(pa,
    345             (const struct pcmcia_product *)ep_pcmcia_products,
    346             sizeof ep_pcmcia_products[0], NULL);
    347 	if (epp == NULL)
    348 		panic("ep_pcmcia_attach: impossible");
    349 
    350 	printf(": %s\n", epp->epp_product.pp_name);
    351 
    352 	sc->bustype = ELINK_BUS_PCMCIA;
    353 	sc->ep_flags = epp->epp_flags;
    354 
    355 	sc->enable = ep_pcmcia_enable;
    356 	sc->disable = ep_pcmcia_disable;
    357 
    358 	epconfig(sc, epp->epp_chipset, enaddr);
    359 
    360 	sc->enabled = 0;
    361 
    362 	ep_pcmcia_disable1(sc);
    363 }
    364 
    365 int
    366 ep_pcmcia_detach(self, flags)
    367 	struct device *self;
    368 	int flags;
    369 {
    370 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *)self;
    371 	int rv;
    372 
    373 	rv = ep_detach(self, flags);
    374 	if (rv)
    375 		return (rv);
    376 
    377 	/* Unmap our i/o window. */
    378 	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
    379 
    380 	/* Free our i/o space. */
    381 	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
    382 
    383 	return (0);
    384 }
    385 
    386 int
    387 ep_pcmcia_get_enaddr(tuple, arg)
    388 	struct pcmcia_tuple *tuple;
    389 	void *arg;
    390 {
    391 	u_int8_t *myla = arg;
    392 	int i;
    393 
    394 	/* this is 3c562a-c magic */
    395 	if (tuple->code == 0x88) {
    396 		if (tuple->length < ETHER_ADDR_LEN)
    397 			return (0);
    398 
    399 		for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
    400 			myla[i] = pcmcia_tuple_read_1(tuple, i + 1);
    401 			myla[i + 1] = pcmcia_tuple_read_1(tuple, i);
    402 		}
    403 
    404 		return (1);
    405 	}
    406 	return (0);
    407 }
    408