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if_sm_pcmcia.c revision 1.5
      1 /*	$NetBSD: if_sm_pcmcia.c,v 1.5 1998/07/05 06:49:16 jonathan Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 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 #include "opt_inet.h"
     41 #include "opt_ns.h"
     42 #include "bpfilter.h"
     43 
     44 #include <sys/param.h>
     45 #include <sys/systm.h>
     46 #include <sys/mbuf.h>
     47 #include <sys/socket.h>
     48 #include <sys/ioctl.h>
     49 #include <sys/errno.h>
     50 #include <sys/syslog.h>
     51 #include <sys/select.h>
     52 #include <sys/device.h>
     53 
     54 #include <net/if.h>
     55 #include <net/if_dl.h>
     56 #include <net/if_ether.h>
     57 #include <net/if_media.h>
     58 
     59 #ifdef INET
     60 #include <netinet/in.h>
     61 #include <netinet/in_systm.h>
     62 #include <netinet/in_var.h>
     63 #include <netinet/ip.h>
     64 #include <netinet/if_inarp.h>
     65 #endif
     66 
     67 #ifdef NS
     68 #include <netns/ns.h>
     69 #include <netns/ns_if.h>
     70 #endif
     71 
     72 #if NBPFILTER > 0
     73 #include <net/bpf.h>
     74 #include <net/bpfdesc.h>
     75 #endif
     76 
     77 #include <machine/intr.h>
     78 #include <machine/bus.h>
     79 
     80 #include <dev/ic/smc91cxxreg.h>
     81 #include <dev/ic/smc91cxxvar.h>
     82 
     83 #include <dev/pcmcia/pcmciareg.h>
     84 #include <dev/pcmcia/pcmciavar.h>
     85 
     86 #define	PCMCIA_MANUFACTURER_MEGAHERTZ	0x128
     87 #define	PCMCIA_PRODUCT_MEGAHERTZ_XJACK	0x103
     88 
     89 int	sm_pcmcia_match __P((struct device *, struct cfdata *, void *));
     90 void	sm_pcmcia_attach __P((struct device *, struct device *, void *));
     91 
     92 struct sm_pcmcia_softc {
     93 	struct	smc91cxx_softc sc_smc;		/* real "smc" softc */
     94 
     95 	/* PCMCIA-specific goo. */
     96 	struct	pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o space info */
     97 	int	sc_io_window;			/* our i/o window */
     98 	void	*sc_ih;				/* interrupt cookie */
     99 	struct	pcmcia_function *sc_pf;		/* our PCMCIA function */
    100 };
    101 
    102 struct cfattach sm_pcmcia_ca = {
    103 	sizeof(struct sm_pcmcia_softc), sm_pcmcia_match, sm_pcmcia_attach
    104 };
    105 
    106 int	sm_pcmcia_enable __P((struct smc91cxx_softc *));
    107 void	sm_pcmcia_disable __P((struct smc91cxx_softc *));
    108 
    109 int
    110 sm_pcmcia_match(parent, match, aux)
    111 	struct device *parent;
    112 	struct cfdata *match;
    113 	void *aux;
    114 {
    115 	struct pcmcia_attach_args *pa = aux;
    116 
    117 	if (pa->manufacturer == PCMCIA_MANUFACTURER_MEGAHERTZ) {
    118 		switch (pa->product) {
    119 		case PCMCIA_PRODUCT_MEGAHERTZ_XJACK:
    120 			if (pa->pf->number == 0)
    121 				return (1);
    122 		}
    123 	}
    124 
    125 	return (0);
    126 }
    127 
    128 void
    129 sm_pcmcia_attach(parent, self, aux)
    130 	struct device *parent, *self;
    131 	void *aux;
    132 {
    133 	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)self;
    134 	struct smc91cxx_softc *sc = &psc->sc_smc;
    135 	struct pcmcia_attach_args *pa = aux;
    136 	struct pcmcia_config_entry *cfe;
    137 	u_int8_t myla[ETHER_ADDR_LEN], *enaddr = NULL;
    138 	const char *model;
    139 
    140 	psc->sc_pf = pa->pf;
    141 	cfe = pa->pf->cfe_head.sqh_first;
    142 
    143 	/* Enable the card. */
    144 	pcmcia_function_init(pa->pf, cfe);
    145 	if (pcmcia_function_enable(pa->pf)) {
    146 		printf(": function enable failed\n");
    147 		return;
    148 	}
    149 
    150 	/* XXX sanity check number of mem and i/o spaces */
    151 
    152 	/* Allocate and map i/o space for the card. */
    153 	if (pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length,
    154 	    cfe->iospace[0].length, &psc->sc_pcioh)) {
    155 		printf(": can't allocate i/o space\n");
    156 		return;
    157 	}
    158 
    159 	sc->sc_bst = psc->sc_pcioh.iot;
    160 	sc->sc_bsh = psc->sc_pcioh.ioh;
    161 
    162 	sc->sc_enable = sm_pcmcia_enable;
    163 	sc->sc_disable = sm_pcmcia_disable;
    164 
    165 	if (pcmcia_io_map(pa->pf, (cfe->flags & PCMCIA_CFE_IO16) ?
    166 	    PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8, 0, cfe->iospace[0].length,
    167 	    &psc->sc_pcioh, &psc->sc_io_window)) {
    168 		printf(": can't map i/o space\n");
    169 		return;
    170 	}
    171 
    172 	switch (pa->product) {
    173 	case PCMCIA_PRODUCT_MEGAHERTZ_XJACK:
    174 		model = "Megahertz X-JACK Ethernet";
    175 		break;
    176 
    177 	default:
    178 		model = "Unknown SMC91Cxx Ethernet";
    179 	}
    180 	printf(": %s\n", model);
    181 
    182 	if (pa->product == PCMCIA_PRODUCT_MEGAHERTZ_XJACK) {
    183 		char enaddr_str[12];
    184 		int i = 0, j;
    185 
    186 		/*
    187 		 * The X-JACK's Ethernet address is stored in the fourth
    188 		 * CIS info string.  We need to parse it and pass it to
    189 		 * the generic layer.
    190 		 */
    191 		if (strlen(pa->pf->sc->card.cis1_info[3]) != 12) {
    192 			/* Bogus address! */
    193 			goto out;
    194 		}
    195 		bcopy(pa->pf->sc->card.cis1_info[3], enaddr_str, 12);
    196 		bzero(myla, sizeof(myla));
    197 		for (i = 0; i < 6; i++) {
    198 			for (j = 0; j < 2; j++) {
    199 				/* Convert to upper case. */
    200 				if (enaddr_str[(i * 2) + j] >= 'a' &&
    201 				    enaddr_str[(i * 2) + j] <= 'z')
    202 					enaddr_str[(i * 2) + j] -= 'a' - 'A';
    203 
    204 				/* Parse the digit. */
    205 				if (enaddr_str[(i * 2) + j] >= '0' &&
    206 				    enaddr_str[(i * 2) + j] <= '9')
    207 					myla[i] |= enaddr_str[(i * 2) + j]
    208 					    - '0';
    209 				else if (enaddr_str[(i * 2) + j] >= 'A' &&
    210 					 enaddr_str[(i * 2) + j] <= 'F')
    211 					myla[i] |= enaddr_str[(i * 2) + j]
    212 					    - 'A' + 10;
    213 				else {
    214 					/* Bogus digit!! */
    215 					goto out;
    216 				}
    217 
    218 				/* Compensate for ordering of digits. */
    219 				if (j == 0)
    220 					myla[i] <<= 4;
    221 			}
    222 		}
    223 
    224  out:
    225 		if (i >= 6) {
    226 			/* Successfully parsed. */
    227 			enaddr = myla;
    228 		} else {
    229 			printf("%s: unable to read MAC address from CIS\n",
    230 			    sc->sc_dev.dv_xname);
    231 		}
    232 	}
    233 
    234 	/* Perform generic intialization. */
    235 	smc91cxx_attach(sc, enaddr);
    236 
    237 	pcmcia_function_disable(pa->pf);
    238 }
    239 
    240 int
    241 sm_pcmcia_enable(sc)
    242 	struct smc91cxx_softc *sc;
    243 {
    244 	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)sc;
    245 
    246 	/* Establish the interrupt handler. */
    247 	psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, smc91cxx_intr,
    248 	    sc);
    249 	if (psc->sc_ih == NULL) {
    250 		printf("%s: couldn't establish interrupt handler\n",
    251 		    sc->sc_dev.dv_xname);
    252 		return (1);
    253 	}
    254 
    255 	return (pcmcia_function_enable(psc->sc_pf));
    256 }
    257 
    258 void
    259 sm_pcmcia_disable(sc)
    260 	struct smc91cxx_softc *sc;
    261 {
    262 	struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)sc;
    263 
    264 	pcmcia_function_disable(psc->sc_pf);
    265 
    266 	pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
    267 }
    268