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if_ep_pcmcia.c revision 1.7
      1 /*	$NetBSD: if_ep_pcmcia.c,v 1.7 1998/03/31 08:13:34 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Marc Horowitz.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Marc Horowitz.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include "bpfilter.h"
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/mbuf.h>
     37 #include <sys/socket.h>
     38 #include <sys/ioctl.h>
     39 #include <sys/errno.h>
     40 #include <sys/syslog.h>
     41 #include <sys/select.h>
     42 #include <sys/device.h>
     43 
     44 #include <net/if.h>
     45 #include <net/if_dl.h>
     46 #include <net/if_ether.h>
     47 #include <net/if_media.h>
     48 
     49 #ifdef INET
     50 #include <netinet/in.h>
     51 #include <netinet/in_systm.h>
     52 #include <netinet/in_var.h>
     53 #include <netinet/ip.h>
     54 #include <netinet/if_inarp.h>
     55 #endif
     56 
     57 #ifdef NS
     58 #include <netns/ns.h>
     59 #include <netns/ns_if.h>
     60 #endif
     61 
     62 #if NBPFILTER > 0
     63 #include <net/bpf.h>
     64 #include <net/bpfdesc.h>
     65 #endif
     66 
     67 #include <machine/cpu.h>
     68 #include <machine/bus.h>
     69 #include <machine/intr.h>
     70 
     71 #include <dev/ic/elink3var.h>
     72 #include <dev/ic/elink3reg.h>
     73 
     74 #include <dev/pcmcia/pcmciareg.h>
     75 #include <dev/pcmcia/pcmciavar.h>
     76 
     77 #define	PCMCIA_MANUFACTURER_3COM	0x101
     78 #define	PCMCIA_PRODUCT_3COM_3C562	0x562
     79 #define	PCMCIA_PRODUCT_3COM_3C589	0x589
     80 
     81 #ifdef __BROKEN_INDIRECT_CONFIG
     82 int	ep_pcmcia_match __P((struct device *, void *, void *));
     83 #else
     84 int	ep_pcmcia_match __P((struct device *, struct cfdata *, void *));
     85 #endif
     86 void	ep_pcmcia_attach __P((struct device *, struct device *, void *));
     87 
     88 int	ep_pcmcia_get_enaddr __P((struct pcmcia_tuple *, void *));
     89 int	ep_pcmcia_enable __P((struct ep_softc *));
     90 void	ep_pcmcia_disable __P((struct ep_softc *));
     91 
     92 int	ep_pcmcia_enable1 __P((struct ep_softc *));
     93 void	ep_pcmcia_disable1 __P((struct ep_softc *));
     94 
     95 struct ep_pcmcia_softc {
     96 	struct ep_softc sc_ep;			/* real "ep" softc */
     97 
     98 	/* PCMCIA-specific goo */
     99 	struct pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
    100 	int sc_io_window;			/* our i/o window */
    101 	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
    102 };
    103 
    104 struct cfattach ep_pcmcia_ca = {
    105 	sizeof(struct ep_pcmcia_softc), ep_pcmcia_match, ep_pcmcia_attach
    106 };
    107 
    108 int
    109 ep_pcmcia_match(parent, match, aux)
    110 	struct device *parent;
    111 #ifdef __BROKEN_INDIRECT_CONFIG
    112 	void *match;
    113 #else
    114 	struct cfdata *match;
    115 #endif
    116 	void *aux;
    117 {
    118 	struct pcmcia_attach_args *pa = aux;
    119 
    120 	if (pa->manufacturer == PCMCIA_MANUFACTURER_3COM) {
    121 		switch (pa->product) {
    122 		case PCMCIA_PRODUCT_3COM_3C562:
    123 		case PCMCIA_PRODUCT_3COM_3C589:
    124 			if (pa->pf->number == 0)
    125 				return (1);
    126 		}
    127 	}
    128 
    129 	return (0);
    130 }
    131 
    132 int
    133 ep_pcmcia_enable(sc)
    134 	struct ep_softc *sc;
    135 {
    136 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    137 	struct pcmcia_function *pf = psc->sc_pf;
    138 
    139 	/* establish the interrupt. */
    140 	sc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, epintr, sc);
    141 	if (sc->sc_ih == NULL) {
    142 		printf("%s: couldn't establish interrupt\n",
    143 		    sc->sc_dev.dv_xname);
    144 		return (1);
    145 	}
    146 
    147 	return (ep_pcmcia_enable1(sc));
    148 }
    149 
    150 int
    151 ep_pcmcia_enable1(sc)
    152 	struct ep_softc *sc;
    153 {
    154 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    155 	struct pcmcia_function *pf = psc->sc_pf;
    156 	int ret;
    157 
    158 	if ((ret = pcmcia_function_enable(pf)))
    159 		return (ret);
    160 
    161 	if (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) {
    162 		int reg;
    163 
    164 		/* turn off the serial-disable bit */
    165 
    166 		reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
    167 		if (reg & 0x08) {
    168 			reg &= ~0x08;
    169 			pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
    170 		}
    171 
    172 	}
    173 
    174 	return (ret);
    175 }
    176 
    177 void
    178 ep_pcmcia_disable(sc)
    179 	struct ep_softc *sc;
    180 {
    181 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    182 
    183 	ep_pcmcia_disable1(sc);
    184 	pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih);
    185 }
    186 
    187 void
    188 ep_pcmcia_disable1(sc)
    189 	struct ep_softc *sc;
    190 {
    191 	struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
    192 
    193 	pcmcia_function_disable(psc->sc_pf);
    194 }
    195 
    196 void
    197 ep_pcmcia_attach(parent, self, aux)
    198 	struct device  *parent, *self;
    199 	void           *aux;
    200 {
    201 	struct ep_pcmcia_softc *psc = (void *) self;
    202 	struct ep_softc *sc = &psc->sc_ep;
    203 	struct pcmcia_attach_args *pa = aux;
    204 	struct pcmcia_config_entry *cfe;
    205 	int i;
    206 	u_int8_t myla[ETHER_ADDR_LEN];
    207 	u_int8_t *enaddr;
    208 	char *model;
    209 
    210 	psc->sc_pf = pa->pf;
    211 	cfe = pa->pf->cfe_head.sqh_first;
    212 
    213 	/* Enable the card. */
    214 	pcmcia_function_init(pa->pf, cfe);
    215 	if (ep_pcmcia_enable1(sc))
    216 		printf(": function enable failed\n");
    217 
    218 	sc->enabled = 1;
    219 
    220 	if (cfe->num_memspace != 0)
    221 		printf(": unexpected number of memory spaces %d should be 0\n",
    222 		    cfe->num_memspace);
    223 
    224 	if (cfe->num_iospace != 1)
    225 		printf(": unexpected number of I/O spaces %d should be 1\n",
    226 		    cfe->num_iospace);
    227 
    228 	if (pa->product == PCMCIA_PRODUCT_3COM_3C562) {
    229 		bus_addr_t maxaddr = (pa->pf->sc->iobase + pa->pf->sc->iosize);
    230 
    231 		for (i = pa->pf->sc->iobase; i < maxaddr; i += 0x10) {
    232 			/*
    233 			 * the 3c562 can only use 0x??00-0x??7f
    234 			 * according to the Linux driver
    235 			 */
    236 			if (i & 0x80)
    237 				continue;
    238 			if (pcmcia_io_alloc(pa->pf, i, cfe->iospace[0].length,
    239 			    0, &psc->sc_pcioh) == 0)
    240 				break;
    241 		}
    242 		if (i >= maxaddr) {
    243 			printf(": can't allocate i/o space\n");
    244 			return;
    245 		}
    246 	} else {
    247 		if (pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length,
    248 		    cfe->iospace[0].length, &psc->sc_pcioh))
    249 			printf(": can't allocate i/o space\n");
    250 	}
    251 
    252 	sc->sc_iot = psc->sc_pcioh.iot;
    253 	sc->sc_ioh = psc->sc_pcioh.ioh;
    254 
    255 	if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ?
    256 	    PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, cfe->iospace[0].length,
    257 	    &psc->sc_pcioh, &psc->sc_io_window)) {
    258 		printf(": can't map i/o space\n");
    259 		return;
    260 	}
    261 	if (pa->product == PCMCIA_PRODUCT_3COM_3C562) {
    262 		/*
    263 		 * 3c562a-c use this; 3c562d does it in the regular way.
    264 		 * we might want to check the revision and produce a warning
    265 		 * in the future.
    266 		 */
    267 		if (pcmcia_scan_cis(parent, ep_pcmcia_get_enaddr, myla) != 1)
    268 			enaddr = NULL;
    269 		else
    270 			enaddr = myla;
    271 	} else {
    272 		enaddr = NULL;
    273 	}
    274 
    275 	sc->bustype = EP_BUS_PCMCIA;
    276 
    277 	switch (pa->product) {
    278 	case PCMCIA_PRODUCT_3COM_3C589:
    279 		model = "3Com 3C589 Ethernet";
    280 		break;
    281 	case PCMCIA_PRODUCT_3COM_3C562:
    282 		model = "3Com 3C562 Ethernet";
    283 		break;
    284 	default:
    285 		model = "3Com Ethernet, model unknown";
    286 		break;
    287 	}
    288 
    289 	printf(": %s\n", model);
    290 
    291 	sc->enable = ep_pcmcia_enable;
    292 	sc->disable = ep_pcmcia_disable;
    293 
    294 	epconfig(sc, EP_CHIPSET_3C509, enaddr);
    295 
    296 	sc->enabled = 0;
    297 
    298 	ep_pcmcia_disable1(sc);
    299 }
    300 
    301 int
    302 ep_pcmcia_get_enaddr(tuple, arg)
    303 	struct pcmcia_tuple *tuple;
    304 	void *arg;
    305 {
    306 	u_int8_t *myla = arg;
    307 	int i;
    308 
    309 	/* this is 3c562a-c magic */
    310 	if (tuple->code == 0x88) {
    311 		if (tuple->length < ETHER_ADDR_LEN)
    312 			return (0);
    313 
    314 		for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
    315 			myla[i] = pcmcia_tuple_read_1(tuple, i + 1);
    316 			myla[i + 1] = pcmcia_tuple_read_1(tuple, i);
    317 		}
    318 
    319 		return (1);
    320 	}
    321 	return (0);
    322 }
    323