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xirc.c revision 1.36
      1 /*	$NetBSD: xirc.c,v 1.36 2019/10/05 01:35:26 mrg Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999, 2000, 2004 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 and by Charles M. Hannum.
     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  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: xirc.c,v 1.36 2019/10/05 01:35:26 mrg Exp $");
     35 
     36 #include "opt_inet.h"
     37 
     38 #include <sys/param.h>
     39 #include <sys/systm.h>
     40 #include <sys/mbuf.h>
     41 #include <sys/socket.h>
     42 #include <sys/ioctl.h>
     43 #include <sys/errno.h>
     44 #include <sys/syslog.h>
     45 #include <sys/select.h>
     46 #include <sys/tty.h>
     47 #include <sys/device.h>
     48 
     49 #include <net/if.h>
     50 #include <net/if_dl.h>
     51 #include <net/if_ether.h>
     52 #include <net/if_media.h>
     53 #include <net/bpf.h>
     54 
     55 #ifdef INET
     56 #include <netinet/in.h>
     57 #include <netinet/in_systm.h>
     58 #include <netinet/in_var.h>
     59 #include <netinet/ip.h>
     60 #include <netinet/if_inarp.h>
     61 #endif
     62 
     63 #include <sys/intr.h>
     64 #include <sys/bus.h>
     65 
     66 #include <dev/pcmcia/pcmciareg.h>
     67 #include <dev/pcmcia/pcmciavar.h>
     68 #include <dev/pcmcia/pcmciadevs.h>
     69 
     70 #include "xirc.h"
     71 
     72 #if NCOM_XIRC > 0
     73 #include <dev/ic/comreg.h>
     74 #include <dev/ic/comvar.h>
     75 #endif
     76 
     77 #if NXI_XIRC > 0
     78 #include <dev/mii/mii.h>
     79 #include <dev/mii/miivar.h>
     80 
     81 #include <dev/pcmcia/if_xivar.h>
     82 #endif
     83 #include <dev/pcmcia/if_xireg.h>
     84 
     85 struct xirc_softc {
     86 	device_t sc_dev;		/* generic device glue */
     87 
     88 	struct pcmcia_function *sc_pf;	/* our PCMCIA function */
     89 	void *sc_ih;			/* interrupt handle */
     90 
     91 	u_int16_t sc_id;
     92 	u_int8_t sc_mako_intmask;
     93 	int sc_chipset;
     94 
     95 	/*
     96 	 * Data for the Modem portion.
     97 	 */
     98 	device_t sc_modem;
     99 	struct pcmcia_io_handle sc_modem_pcioh;
    100 	int sc_modem_io_window;
    101 
    102 	/*
    103 	 * Data for the Ethernet portion.
    104 	 */
    105 	device_t sc_ethernet;
    106 	struct pcmcia_io_handle sc_ethernet_pcioh;
    107 	int sc_ethernet_io_window;
    108 
    109 	int sc_flags;
    110 #define	XIRC_MODEM_MAPPED	0x01
    111 #define	XIRC_ETHERNET_MAPPED	0x02
    112 #define	XIRC_MODEM_ENABLED	0x04
    113 #define	XIRC_ETHERNET_ENABLED	0x08
    114 #define	XIRC_MODEM_ALLOCED	0x10
    115 #define	XIRC_ETHERNET_ALLOCED	0x20
    116 };
    117 
    118 int	xirc_match(device_t, cfdata_t, void *);
    119 void	xirc_attach(device_t, device_t, void *);
    120 int	xirc_detach(device_t, int);
    121 void	xirc_childdet(device_t, device_t);
    122 
    123 CFATTACH_DECL2_NEW(xirc, sizeof(struct xirc_softc),
    124     xirc_match, xirc_attach, xirc_detach, NULL, NULL, xirc_childdet);
    125 
    126 int	xirc_print(void *, const char *);
    127 
    128 int	xirc_manfid_ciscallback(struct pcmcia_tuple *, void *);
    129 struct pcmcia_config_entry *
    130 	xirc_mako_alloc(struct xirc_softc *);
    131 struct pcmcia_config_entry *
    132 	xirc_dingo_alloc_modem(struct xirc_softc *);
    133 struct pcmcia_config_entry *
    134 	xirc_dingo_alloc_ethernet(struct xirc_softc *);
    135 
    136 int	xirc_enable(struct xirc_softc *, int, int);
    137 void	xirc_disable(struct xirc_softc *, int, int);
    138 
    139 int	xirc_intr(void *);
    140 
    141 int
    142 xirc_match(device_t parent, cfdata_t match,
    143     void *aux)
    144 {
    145 	struct pcmcia_attach_args *pa = aux;
    146 
    147 	/* XXX Toshiba, Accton */
    148 
    149 	if (pa->manufacturer == PCMCIA_VENDOR_COMPAQ2 &&
    150 	    pa->product == PCMCIA_PRODUCT_COMPAQ2_CPQ_10_100)
    151 		return (1);
    152 
    153 	if (pa->manufacturer == PCMCIA_VENDOR_INTEL &&
    154 	    pa->product == PCMCIA_PRODUCT_INTEL_EEPRO100)
    155 		return (1);
    156 
    157 	if (pa->manufacturer == PCMCIA_VENDOR_XIRCOM &&
    158 	    (pa->product & (XIMEDIA_ETHER << 8)) != 0)
    159 		return (2);
    160 
    161 	return (0);
    162 }
    163 
    164 void
    165 xirc_attach(device_t parent, device_t self, void *aux)
    166 {
    167 	struct xirc_softc *sc = device_private(self);
    168 	struct pcmcia_attach_args *pa = aux;
    169 	struct pcmcia_config_entry *cfe;
    170 	int rv;
    171 	int error;
    172 
    173 	sc->sc_dev = self;
    174 
    175 	sc->sc_pf = pa->pf;
    176 
    177 	pcmcia_socket_enable(parent);
    178 	rv = pcmcia_scan_cis(parent, xirc_manfid_ciscallback, &sc->sc_id);
    179 	pcmcia_socket_disable(parent);
    180 	if (!rv) {
    181 		aprint_error_dev(self, "failed to find ID\n");
    182 		return;
    183 	}
    184 
    185 	switch (sc->sc_id & 0x100f) {
    186 	case 0x0001:	/* CE */
    187 	case 0x0002:	/* CE2 */
    188 		sc->sc_chipset = XI_CHIPSET_SCIPPER;
    189 		break;
    190 	case 0x0003:	/* CE3 */
    191 		sc->sc_chipset = XI_CHIPSET_MOHAWK;
    192 		break;
    193 	case 0x1001:
    194 	case 0x1002:
    195 	case 0x1003:
    196 	case 0x1004:
    197 		sc->sc_chipset = XI_CHIPSET_SCIPPER;
    198 		break;
    199 	case 0x1005:
    200 		sc->sc_chipset = XI_CHIPSET_MOHAWK;
    201 		break;
    202 	case 0x1006:
    203 	case 0x1007:
    204 		sc->sc_chipset = XI_CHIPSET_DINGO;
    205 		break;
    206 	default:
    207 		aprint_error_dev(self, "unknown ID %04x\n",
    208 		    sc->sc_id);
    209 		return;
    210 	}
    211 
    212 	aprint_normal_dev(self, "id=%04x\n", sc->sc_id);
    213 
    214 	if (sc->sc_id & (XIMEDIA_MODEM << 8)) {
    215 		if (sc->sc_chipset >= XI_CHIPSET_DINGO) {
    216 			cfe = xirc_dingo_alloc_modem(sc);
    217 			if (cfe && sc->sc_id & (XIMEDIA_ETHER << 8)) {
    218 				if (!xirc_dingo_alloc_ethernet(sc)) {
    219 					pcmcia_io_free(pa->pf,
    220 					    &sc->sc_modem_pcioh);
    221 					cfe = 0;
    222 				}
    223 			}
    224 		} else
    225 			cfe = xirc_mako_alloc(sc);
    226 	} else
    227 		cfe = xirc_dingo_alloc_ethernet(sc);
    228 	if (!cfe) {
    229 		aprint_error_dev(self, "failed to allocate I/O space\n");
    230 		goto fail;
    231 	}
    232 
    233 	/* Enable the card. */
    234 	pcmcia_function_init(pa->pf, cfe);
    235 
    236 	if (sc->sc_id & (XIMEDIA_MODEM << 8)) {
    237 		if (pcmcia_io_map(sc->sc_pf, PCMCIA_WIDTH_IO8,
    238 		    &sc->sc_modem_pcioh, &sc->sc_modem_io_window)) {
    239 			aprint_error_dev(self, "unable to map I/O space\n");
    240 			goto fail;
    241 		}
    242 		sc->sc_flags |= XIRC_MODEM_MAPPED;
    243 	}
    244 
    245 	if (sc->sc_id & (XIMEDIA_ETHER << 8)) {
    246 		if (pcmcia_io_map(sc->sc_pf, PCMCIA_WIDTH_AUTO,
    247 		    &sc->sc_ethernet_pcioh, &sc->sc_ethernet_io_window)) {
    248 			aprint_error_dev(self, "unable to map I/O space\n");
    249 			goto fail;
    250 		}
    251 		sc->sc_flags |= XIRC_ETHERNET_MAPPED;
    252 	}
    253 
    254 	error = xirc_enable(sc, XIRC_MODEM_ENABLED|XIRC_ETHERNET_ENABLED,
    255 	    sc->sc_id & (XIMEDIA_MODEM|XIMEDIA_ETHER));
    256 	if (error)
    257 		goto fail;
    258 
    259 	sc->sc_mako_intmask = 0xee;
    260 
    261 	if (sc->sc_id & (XIMEDIA_MODEM << 8))
    262 		/*XXXUNCONST*/
    263 		sc->sc_modem = config_found(self, __UNCONST("com"), xirc_print);
    264 	if (sc->sc_id & (XIMEDIA_ETHER << 8))
    265 		/*XXXUNCONST*/
    266 		sc->sc_ethernet = config_found(self, __UNCONST("xi"),
    267 		    xirc_print);
    268 
    269 	xirc_disable(sc, XIRC_MODEM_ENABLED|XIRC_ETHERNET_ENABLED,
    270 	    sc->sc_id & (XIMEDIA_MODEM|XIMEDIA_ETHER));
    271 	return;
    272 
    273 fail:
    274 	/* I/O spaces will be freed by detach. */
    275 	;
    276 }
    277 
    278 int
    279 xirc_manfid_ciscallback(struct pcmcia_tuple *tuple, void *arg)
    280 {
    281 	u_int16_t *id = arg;
    282 
    283 	if (tuple->code != PCMCIA_CISTPL_MANFID)
    284 		return (0);
    285 
    286 	if (tuple->length < 5)
    287 		return (0);
    288 
    289 	*id = (pcmcia_tuple_read_1(tuple, 3) << 8) |
    290 	      pcmcia_tuple_read_1(tuple, 4);
    291 	return (1);
    292 }
    293 
    294 struct pcmcia_config_entry *
    295 xirc_mako_alloc(struct xirc_softc *sc)
    296 {
    297 	struct pcmcia_config_entry *cfe;
    298 
    299 	SIMPLEQ_FOREACH(cfe, &sc->sc_pf->cfe_head, cfe_list) {
    300 		if (cfe->num_iospace != 1)
    301 			continue;
    302 
    303 		if (pcmcia_io_alloc(sc->sc_pf, cfe->iospace[0].start,
    304 		    cfe->iospace[0].length, cfe->iospace[0].length,
    305 		    &sc->sc_modem_pcioh))
    306 			continue;
    307 
    308 		cfe->iospace[1].start = cfe->iospace[0].start+8;
    309 		cfe->iospace[1].length = 18;
    310 		if (pcmcia_io_alloc(sc->sc_pf, cfe->iospace[1].start,
    311 		    cfe->iospace[1].length, 0x20,
    312 		    &sc->sc_ethernet_pcioh)) {
    313 			cfe->iospace[1].start = cfe->iospace[0].start-24;
    314 			if (pcmcia_io_alloc(sc->sc_pf, cfe->iospace[1].start,
    315 			    cfe->iospace[1].length, 0x20,
    316 			    &sc->sc_ethernet_pcioh))
    317 				continue;
    318 		}
    319 
    320 		/* Found one! */
    321 		sc->sc_flags |= XIRC_MODEM_ALLOCED;
    322 		sc->sc_flags |= XIRC_ETHERNET_ALLOCED;
    323 		return (cfe);
    324 	}
    325 
    326 	return (0);
    327 }
    328 
    329 struct pcmcia_config_entry *
    330 xirc_dingo_alloc_modem(struct xirc_softc *sc)
    331 {
    332 	struct pcmcia_config_entry *cfe;
    333 
    334 	SIMPLEQ_FOREACH(cfe, &sc->sc_pf->cfe_head, cfe_list) {
    335 		if (cfe->num_iospace != 1)
    336 			continue;
    337 
    338 		if (pcmcia_io_alloc(sc->sc_pf, cfe->iospace[0].start,
    339 		    cfe->iospace[0].length, cfe->iospace[0].length,
    340 		    &sc->sc_modem_pcioh))
    341 			continue;
    342 
    343 		/* Found one! */
    344 		sc->sc_flags |= XIRC_MODEM_ALLOCED;
    345 		return (cfe);
    346 	}
    347 
    348 	return (0);
    349 }
    350 
    351 struct pcmcia_config_entry *
    352 xirc_dingo_alloc_ethernet(struct xirc_softc *sc)
    353 {
    354 	struct pcmcia_config_entry *cfe;
    355 	bus_addr_t port;
    356 
    357 	for (port = 0x300; port < 0x400; port += XI_IOSIZE) {
    358 		if (pcmcia_io_alloc(sc->sc_pf, port,
    359 		    XI_IOSIZE, XI_IOSIZE, &sc->sc_ethernet_pcioh))
    360 			continue;
    361 
    362 		/* Found one for the ethernet! */
    363 		sc->sc_flags |= XIRC_ETHERNET_ALLOCED;
    364 		cfe = SIMPLEQ_FIRST(&sc->sc_pf->cfe_head);
    365 		return (cfe);
    366 	}
    367 
    368 	return (0);
    369 }
    370 
    371 int
    372 xirc_print(void *aux, const char *pnp)
    373 {
    374 	const char *name = aux;
    375 
    376 	if (pnp)
    377 		aprint_normal("%s at %s(*)",  name, pnp);
    378 
    379 	return (UNCONF);
    380 }
    381 
    382 void
    383 xirc_childdet(device_t self, device_t child)
    384 {
    385 	struct xirc_softc *sc = device_private(self);
    386 
    387 	if (sc->sc_ethernet == child)
    388 		sc->sc_ethernet = NULL;
    389 
    390 	if (sc->sc_modem == child)
    391 		sc->sc_modem = NULL;
    392 }
    393 
    394 int
    395 xirc_detach(device_t self, int flags)
    396 {
    397 	struct xirc_softc *sc = device_private(self);
    398 	int rv;
    399 
    400 	if (sc->sc_ethernet != NULL) {
    401 		if ((rv = config_detach(sc->sc_ethernet, flags)) != 0)
    402 			return rv;
    403 	}
    404 
    405 	if (sc->sc_modem != NULL) {
    406 		if ((rv = config_detach(sc->sc_modem, flags)) != 0)
    407 			return rv;
    408 	}
    409 
    410 	/* Unmap our i/o windows. */
    411 	if (sc->sc_flags & XIRC_ETHERNET_MAPPED)
    412 		pcmcia_io_unmap(sc->sc_pf, sc->sc_ethernet_io_window);
    413 	if (sc->sc_flags & XIRC_MODEM_MAPPED)
    414 		pcmcia_io_unmap(sc->sc_pf, sc->sc_modem_io_window);
    415 
    416 	/* Free our i/o spaces. */
    417 	if (sc->sc_flags & XIRC_ETHERNET_ALLOCED)
    418 		pcmcia_io_free(sc->sc_pf, &sc->sc_ethernet_pcioh);
    419 	if (sc->sc_flags & XIRC_MODEM_ALLOCED)
    420 		pcmcia_io_free(sc->sc_pf, &sc->sc_modem_pcioh);
    421 	sc->sc_flags = 0;
    422 
    423 	return (0);
    424 }
    425 
    426 int
    427 xirc_intr(void *arg)
    428 {
    429 	struct xirc_softc *sc = arg;
    430 	int rval = 0;
    431 
    432 #if NCOM_XIRC > 0
    433 	if (sc->sc_modem != NULL &&
    434 	    (sc->sc_flags & XIRC_MODEM_ENABLED) != 0)
    435 		rval |= comintr(device_private(sc->sc_modem));
    436 #endif
    437 
    438 #if NXI_XIRC > 0
    439 	if (sc->sc_ethernet != NULL &&
    440 	    (sc->sc_flags & XIRC_ETHERNET_ENABLED) != 0)
    441 		rval |= xi_intr(device_private(sc->sc_ethernet));
    442 #endif
    443 
    444 	return (rval);
    445 }
    446 
    447 int
    448 xirc_enable(struct xirc_softc *sc, int flag, int media)
    449 {
    450 	int error;
    451 
    452 	if ((sc->sc_flags & flag) == flag) {
    453 		printf("%s: already enabled\n", device_xname(sc->sc_dev));
    454 		return (0);
    455 	}
    456 
    457 	if ((sc->sc_flags & (XIRC_MODEM_ENABLED|XIRC_ETHERNET_ENABLED)) != 0) {
    458 		sc->sc_flags |= flag;
    459 		return (0);
    460 	}
    461 
    462 	/*
    463 	 * Establish our interrupt handler.
    464 	 *
    465 	 * XXX Note, we establish this at IPL_NET.  This is suboptimal
    466 	 * XXX the Modem portion, but is necessary to make the Ethernet
    467 	 * XXX portion have the correct interrupt level semantics.
    468 	 *
    469 	 * XXX Eventually we should use the `enabled' bits in the
    470 	 * XXX flags word to determine which level we should be at.
    471 	 */
    472 	sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_NET, xirc_intr, sc);
    473 	if (!sc->sc_ih)
    474 		return (EIO);
    475 
    476 	error = pcmcia_function_enable(sc->sc_pf);
    477 	if (error) {
    478 		pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
    479 		sc->sc_ih = 0;
    480 		return (error);
    481 	}
    482 
    483 	sc->sc_flags |= flag;
    484 
    485 	if (sc->sc_chipset < XI_CHIPSET_DINGO &&
    486 	    sc->sc_id & (XIMEDIA_MODEM << 8)) {
    487 		sc->sc_mako_intmask |= media;
    488 		bus_space_write_1(sc->sc_ethernet_pcioh.iot,
    489 		    sc->sc_ethernet_pcioh.ioh, 0x10, sc->sc_mako_intmask);
    490 	}
    491 
    492 	return (0);
    493 }
    494 
    495 void
    496 xirc_disable(struct xirc_softc *sc, int flag, int media)
    497 {
    498 
    499 	if ((sc->sc_flags & flag) == 0) {
    500 		printf("%s: already disabled\n", device_xname(sc->sc_dev));
    501 		return;
    502 	}
    503 
    504 	if (sc->sc_chipset < XI_CHIPSET_DINGO &&
    505 	    sc->sc_id & (XIMEDIA_MODEM << 8)) {
    506 		sc->sc_mako_intmask &= ~media;
    507 		bus_space_write_1(sc->sc_ethernet_pcioh.iot,
    508 		    sc->sc_ethernet_pcioh.ioh, 0x10, sc->sc_mako_intmask);
    509 	}
    510 
    511 	sc->sc_flags &= ~flag;
    512 	if ((sc->sc_flags & (XIRC_MODEM_ENABLED|XIRC_ETHERNET_ENABLED)) != 0)
    513 		return;
    514 
    515 	pcmcia_function_disable(sc->sc_pf);
    516 	pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
    517 	sc->sc_ih = 0;
    518 }
    519 
    520 /****** Here begins the com attachment code. ******/
    521 
    522 #if NCOM_XIRC > 0
    523 int	com_xirc_match(device_t, cfdata_t , void *);
    524 void	com_xirc_attach(device_t, device_t, void *);
    525 int	com_xirc_detach(device_t, int);
    526 
    527 /* No xirc-specific goo in the softc; it's all in the parent. */
    528 CFATTACH_DECL_NEW(com_xirc, sizeof(struct com_softc),
    529     com_xirc_match, com_xirc_attach, com_detach, NULL);
    530 
    531 int	com_xirc_enable(struct com_softc *);
    532 void	com_xirc_disable(struct com_softc *);
    533 
    534 int
    535 com_xirc_match(device_t parent, cfdata_t match, void *aux)
    536 {
    537 	extern struct cfdriver com_cd;
    538 	const char *name = aux;
    539 
    540 	if (strcmp(name, com_cd.cd_name) == 0)
    541 		return (1);
    542 
    543 	return (0);
    544 }
    545 
    546 void
    547 com_xirc_attach(device_t parent, device_t self, void *aux)
    548 {
    549 	struct com_softc *sc = device_private(self);
    550 	struct xirc_softc *msc = device_private(parent);
    551 
    552 	sc->sc_dev = self;
    553 
    554 	aprint_normal("\n");
    555 
    556 	com_init_regs(&sc->sc_regs,
    557 	    msc->sc_modem_pcioh.iot,
    558 	    msc->sc_modem_pcioh.ioh,
    559 	    -1);
    560 
    561 	sc->enabled = 1;
    562 
    563 	sc->sc_frequency = COM_FREQ;
    564 
    565 	sc->enable = com_xirc_enable;
    566 	sc->disable = com_xirc_disable;
    567 
    568 	aprint_normal("%s", device_xname(self));
    569 
    570 	com_attach_subr(sc);
    571 
    572 	sc->enabled = 0;
    573 }
    574 
    575 int
    576 com_xirc_enable(struct com_softc *sc)
    577 {
    578 	struct xirc_softc *msc =
    579 	    device_private(device_parent(sc->sc_dev));
    580 
    581 	return (xirc_enable(msc, XIRC_MODEM_ENABLED, XIMEDIA_MODEM));
    582 }
    583 
    584 void
    585 com_xirc_disable(struct com_softc *sc)
    586 {
    587 	struct xirc_softc *msc =
    588 	    device_private(device_parent(sc->sc_dev));
    589 
    590 	xirc_disable(msc, XIRC_MODEM_ENABLED, XIMEDIA_MODEM);
    591 }
    592 
    593 #endif /* NCOM_XIRC > 0 */
    594 
    595 /****** Here begins the xi attachment code. ******/
    596 
    597 #if NXI_XIRC > 0
    598 int	xi_xirc_match(device_t, cfdata_t, void *);
    599 void	xi_xirc_attach(device_t, device_t, void *);
    600 
    601 /* No xirc-specific goo in the softc; it's all in the parent. */
    602 CFATTACH_DECL_NEW(xi_xirc, sizeof(struct xi_softc),
    603     xi_xirc_match, xi_xirc_attach, xi_detach, NULL);
    604 
    605 int	xi_xirc_enable(struct xi_softc *);
    606 void	xi_xirc_disable(struct xi_softc *);
    607 int	xi_xirc_lan_nid_ciscallback(struct pcmcia_tuple *, void *);
    608 
    609 int
    610 xi_xirc_match(device_t parent, cfdata_t match, void *aux)
    611 {
    612 	extern struct cfdriver xi_cd;
    613 	const char *name = aux;
    614 
    615 	if (strcmp(name, xi_cd.cd_name) == 0)
    616 		return (1);
    617 
    618 	return (0);
    619 }
    620 
    621 void
    622 xi_xirc_attach(device_t parent, device_t self, void *aux)
    623 {
    624 	struct xi_softc *sc = device_private(self);
    625 	struct xirc_softc *msc = device_private(parent);
    626 	u_int8_t myla[ETHER_ADDR_LEN];
    627 
    628 	sc->sc_dev = self;
    629 
    630 	aprint_normal("\n");
    631 
    632 	sc->sc_bst = msc->sc_ethernet_pcioh.iot;
    633 	sc->sc_bsh = msc->sc_ethernet_pcioh.ioh;
    634 
    635 	sc->sc_chipset = msc->sc_chipset;
    636 
    637 	sc->sc_enable = xi_xirc_enable;
    638 	sc->sc_disable = xi_xirc_disable;
    639 
    640 	if (!pcmcia_scan_cis(device_parent(msc->sc_dev),
    641 	    xi_xirc_lan_nid_ciscallback, myla)) {
    642 		aprint_error_dev(self, "can't find MAC address\n");
    643 		return;
    644 	}
    645 
    646 	/* Perform generic initialization. */
    647 	xi_attach(sc, myla);
    648 }
    649 
    650 int
    651 xi_xirc_enable(struct xi_softc *sc)
    652 {
    653 	struct xirc_softc *msc = device_private(device_parent(sc->sc_dev));
    654 
    655 	return (xirc_enable(msc, XIRC_ETHERNET_ENABLED, XIMEDIA_ETHER));
    656 }
    657 
    658 void
    659 xi_xirc_disable(struct xi_softc *sc)
    660 {
    661 	struct xirc_softc *msc = device_private(device_parent(sc->sc_dev));
    662 
    663 	xirc_disable(msc, XIRC_ETHERNET_ENABLED, XIMEDIA_ETHER);
    664 }
    665 
    666 int
    667 xi_xirc_lan_nid_ciscallback(struct pcmcia_tuple *tuple, void *arg)
    668 {
    669 	u_int8_t *myla = arg;
    670 	int i;
    671 
    672 	if (tuple->length < 2)
    673 		return (0);
    674 
    675 	switch (tuple->code) {
    676 	case PCMCIA_CISTPL_FUNCE:
    677 		switch (pcmcia_tuple_read_1(tuple, 0)) {
    678 		case PCMCIA_TPLFE_TYPE_LAN_NID:
    679 			if (pcmcia_tuple_read_1(tuple, 1) != ETHER_ADDR_LEN)
    680 				return (0);
    681 			for (i = 0; i < ETHER_ADDR_LEN; i++)
    682 				myla[i] = pcmcia_tuple_read_1(tuple, i + 2);
    683 			return (1);
    684 
    685 		case 0x02:
    686 			/*
    687 			 * Not sure about this, I don't have a CE2
    688 			 * that puts the ethernet addr here.
    689 			 */
    690 		 	if (pcmcia_tuple_read_1(tuple, 1) != 0x01 ||
    691 			    pcmcia_tuple_read_1(tuple, 2) != ETHER_ADDR_LEN)
    692 				return (0);
    693 			for (i = 0; i < ETHER_ADDR_LEN; i++)
    694 				myla[i] = pcmcia_tuple_read_1(tuple, i + 3);
    695 			return (1);
    696 		}
    697 		break;
    698 
    699 	case 0x89:
    700 		if (pcmcia_tuple_read_1(tuple, 0) != 0x04 ||
    701 		    pcmcia_tuple_read_1(tuple, 1) != ETHER_ADDR_LEN)
    702 			return (0);
    703 		for (i = 0; i < ETHER_ADDR_LEN; i++)
    704 			myla[i] = pcmcia_tuple_read_1(tuple, i + 2);
    705 		return (1);
    706 	}
    707 
    708 	return (0);
    709 }
    710 
    711 #endif /* NXI_XIRC > 0 */
    712