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if_ep_pcmcia.c revision 1.31
      1 /*	$NetBSD: if_ep_pcmcia.c,v 1.31 2000/03/13 20:32:28 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 	{ { PCMCIA_STR_3COM_3C1,	PCMCIA_VENDOR_3COM,
    174 	    PCMCIA_PRODUCT_3COM_3C1,	0 },
    175 	  ELINK_CHIPSET_3C509, 0 },
    176 
    177 	{ { NULL } }
    178 };
    179 
    180 int
    181 ep_pcmcia_match(parent, match, aux)
    182 	struct device *parent;
    183 	struct cfdata *match;
    184 	void *aux;
    185 {
    186 	struct pcmcia_attach_args *pa = aux;
    187 
    188 	if (pcmcia_product_lookup(pa,
    189 	    (const struct pcmcia_product *)ep_pcmcia_products,
    190 	    sizeof ep_pcmcia_products[0], NULL) != NULL)
    191 		return (1);
    192 
    193 	return (0);
    194 }
    195 
    196 int
    197 ep_pcmcia_enable(sc)
    198 	struct ep_softc *sc;
    199 {
    200 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    201 	struct pcmcia_function *pf = psc->sc_pf;
    202 	int error;
    203 
    204 	/* establish the interrupt. */
    205 	sc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, epintr, sc);
    206 	if (sc->sc_ih == NULL) {
    207 		printf("%s: couldn't establish interrupt\n",
    208 		    sc->sc_dev.dv_xname);
    209 		return (1);
    210 	}
    211 
    212 	error = ep_pcmcia_enable1(sc);
    213 	if (error != 0)
    214 		pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih);
    215 	return (error);
    216 }
    217 
    218 int
    219 ep_pcmcia_enable1(sc)
    220 	struct ep_softc *sc;
    221 {
    222 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    223 	struct pcmcia_function *pf = psc->sc_pf;
    224 	int ret;
    225 
    226 	if ((ret = pcmcia_function_enable(pf)))
    227 		return (ret);
    228 
    229 	if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) ||
    230 	    (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) ||
    231 	    (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) {
    232 		int reg;
    233 
    234 		/* turn off the serial-disable bit */
    235 
    236 		reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
    237 		if (reg & 0x08) {
    238 			reg &= ~0x08;
    239 			pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
    240 		}
    241 
    242 	}
    243 
    244 	return (ret);
    245 }
    246 
    247 void
    248 ep_pcmcia_disable(sc)
    249 	struct ep_softc *sc;
    250 {
    251 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    252 
    253 	ep_pcmcia_disable1(sc);
    254 	pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih);
    255 }
    256 
    257 void
    258 ep_pcmcia_disable1(sc)
    259 	struct ep_softc *sc;
    260 {
    261 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    262 
    263 	pcmcia_function_disable(psc->sc_pf);
    264 }
    265 
    266 void
    267 ep_pcmcia_attach(parent, self, aux)
    268 	struct device  *parent, *self;
    269 	void           *aux;
    270 {
    271 	struct ep_pcmcia_softc *psc = (void *) self;
    272 	struct ep_softc *sc = &psc->sc_ep;
    273 	struct pcmcia_attach_args *pa = aux;
    274 	struct pcmcia_config_entry *cfe;
    275 	const struct ep_pcmcia_product *epp;
    276 	u_int8_t myla[ETHER_ADDR_LEN];
    277 	u_int8_t *enaddr = NULL;
    278 	int i;
    279 
    280 	psc->sc_pf = pa->pf;
    281 	cfe = pa->pf->cfe_head.sqh_first;
    282 
    283 	/* Enable the card. */
    284 	pcmcia_function_init(pa->pf, cfe);
    285 	if (ep_pcmcia_enable1(sc)) {
    286 		printf(": function enable failed\n");
    287 		goto enable_failed;
    288 	}
    289 	sc->enabled = 1;
    290 
    291 	if (cfe->num_memspace != 0) {
    292 		printf(": unexpected number of memory spaces %d should be 0\n",
    293 		    cfe->num_memspace);
    294 		goto ioalloc_failed;
    295 	}
    296 
    297 	if (cfe->num_iospace != 1) {
    298 		printf(": unexpected number of I/O spaces %d should be 1\n",
    299 		    cfe->num_iospace);
    300 		goto ioalloc_failed;
    301 	}
    302 
    303 	if (pa->product == PCMCIA_PRODUCT_3COM_3C562) {
    304 		bus_addr_t maxaddr = (pa->pf->sc->iobase + pa->pf->sc->iosize);
    305 
    306 		for (i = pa->pf->sc->iobase; i < maxaddr; i += 0x10) {
    307 			/*
    308 			 * the 3c562 can only use 0x??00-0x??7f
    309 			 * according to the Linux driver
    310 			 */
    311 			if (i & 0x80)
    312 				continue;
    313 			if (pcmcia_io_alloc(pa->pf, i, cfe->iospace[0].length,
    314 			    0, &psc->sc_pcioh) == 0)
    315 				break;
    316 		}
    317 		if (i >= maxaddr) {
    318 			printf(": can't allocate i/o space\n");
    319 			goto ioalloc_failed;
    320 		}
    321 	} else {
    322 		if (pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length,
    323 		    cfe->iospace[0].length, &psc->sc_pcioh)) {
    324 			printf(": can't allocate i/o space\n");
    325 			goto ioalloc_failed;
    326 		}
    327 	}
    328 
    329 	sc->sc_iot = psc->sc_pcioh.iot;
    330 	sc->sc_ioh = psc->sc_pcioh.ioh;
    331 
    332 	if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ?
    333 	    PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, cfe->iospace[0].length,
    334 	    &psc->sc_pcioh, &psc->sc_io_window)) {
    335 		printf(": can't map i/o space\n");
    336 		goto iomap_failed;
    337 	}
    338 
    339 	switch (pa->product) {
    340 	case PCMCIA_PRODUCT_3COM_3C562:
    341 		/*
    342 		 * 3c562a-c use this; 3c562d does it in the regular way.
    343 		 * we might want to check the revision and produce a warning
    344 		 * in the future.
    345 		 */
    346 		/* FALLTHROUGH */
    347 	case PCMCIA_PRODUCT_3COM_3C574:
    348 	case PCMCIA_PRODUCT_3COM_3CCFEM556BI:
    349 		/*
    350 		 * Apparently, some 3c574s do it this way, as well.
    351 		 */
    352 		if (pcmcia_scan_cis(parent, ep_pcmcia_get_enaddr, myla))
    353 			enaddr = myla;
    354 		break;
    355 	}
    356 
    357 	epp = (const struct ep_pcmcia_product *)pcmcia_product_lookup(pa,
    358             (const struct pcmcia_product *)ep_pcmcia_products,
    359             sizeof ep_pcmcia_products[0], NULL);
    360 	if (epp == NULL)
    361 		panic("ep_pcmcia_attach: impossible");
    362 
    363 	printf(": %s\n", epp->epp_product.pp_name);
    364 
    365 	sc->bustype = ELINK_BUS_PCMCIA;
    366 	sc->ep_flags = epp->epp_flags;
    367 
    368 	sc->enable = ep_pcmcia_enable;
    369 	sc->disable = ep_pcmcia_disable;
    370 
    371 	if (epconfig(sc, epp->epp_chipset, enaddr)) {
    372 		printf("%s: couldn't configure controller\n",
    373 		    sc->sc_dev.dv_xname);
    374 		goto config_failed;
    375 	}
    376 
    377 	sc->enabled = 0;
    378 	ep_pcmcia_disable1(sc);
    379 	return;
    380 
    381  config_failed:
    382 	/* Unmap our i/o window. */
    383 	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
    384 
    385  iomap_failed:
    386 	/* Free our i/o space. */
    387 	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
    388 
    389  ioalloc_failed:
    390 	sc->enabled = 0;
    391 	ep_pcmcia_disable1(sc);
    392 
    393  enable_failed:
    394 	psc->sc_io_window = -1;
    395 }
    396 
    397 int
    398 ep_pcmcia_detach(self, flags)
    399 	struct device *self;
    400 	int flags;
    401 {
    402 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *)self;
    403 	int rv;
    404 
    405 	if (psc->sc_io_window == -1)
    406 		/* Nothing to detach. */
    407 		return (0);
    408 
    409 	rv = ep_detach(self, flags);
    410 	if (rv != 0)
    411 		return (rv);
    412 
    413 	/* Unmap our i/o window. */
    414 	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
    415 
    416 	/* Free our i/o space. */
    417 	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
    418 
    419 	return (0);
    420 }
    421 
    422 int
    423 ep_pcmcia_get_enaddr(tuple, arg)
    424 	struct pcmcia_tuple *tuple;
    425 	void *arg;
    426 {
    427 	u_int8_t *myla = arg;
    428 	int i;
    429 
    430 	/* this is 3c562a-c magic */
    431 	if (tuple->code == 0x88) {
    432 		if (tuple->length < ETHER_ADDR_LEN)
    433 			return (0);
    434 
    435 		for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
    436 			myla[i] = pcmcia_tuple_read_1(tuple, i + 1);
    437 			myla[i + 1] = pcmcia_tuple_read_1(tuple, i);
    438 		}
    439 
    440 		return (1);
    441 	}
    442 	return (0);
    443 }
    444