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if_ep_isa.c revision 1.8.4.3
      1  1.8.4.3        is /*	$NetBSD: if_ep_isa.c,v 1.8.4.3 1997/03/10 13:46:10 is Exp $	*/
      2      1.1   thorpej 
      3      1.1   thorpej /*
      4      1.2   thorpej  * Copyright (c) 1996 Jason R. Thorpe <thorpej (at) beer.org>
      5      1.4   thorpej  * Copyright (c) 1994 Herb Peyerl <hpeyerl (at) beer.org>
      6      1.1   thorpej  * All rights reserved.
      7      1.1   thorpej  *
      8      1.1   thorpej  * Redistribution and use in source and binary forms, with or without
      9      1.1   thorpej  * modification, are permitted provided that the following conditions
     10      1.1   thorpej  * are met:
     11      1.1   thorpej  * 1. Redistributions of source code must retain the above copyright
     12      1.1   thorpej  *    notice, this list of conditions and the following disclaimer.
     13      1.1   thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     14      1.1   thorpej  *    notice, this list of conditions and the following disclaimer in the
     15      1.1   thorpej  *    documentation and/or other materials provided with the distribution.
     16      1.1   thorpej  * 3. All advertising materials mentioning features or use of this software
     17      1.1   thorpej  *    must display the following acknowledgement:
     18      1.1   thorpej  *      This product includes software developed by Herb Peyerl.
     19      1.1   thorpej  * 4. The name of Herb Peyerl may not be used to endorse or promote products
     20      1.1   thorpej  *    derived from this software without specific prior written permission.
     21      1.1   thorpej  *
     22      1.1   thorpej  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23      1.1   thorpej  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24      1.1   thorpej  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25      1.1   thorpej  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26      1.1   thorpej  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27      1.1   thorpej  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28      1.1   thorpej  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29      1.1   thorpej  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30      1.1   thorpej  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31      1.1   thorpej  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32      1.1   thorpej  */
     33      1.1   thorpej 
     34      1.1   thorpej #include "bpfilter.h"
     35      1.1   thorpej 
     36      1.1   thorpej #include <sys/param.h>
     37      1.3  christos #include <sys/systm.h>
     38      1.1   thorpej #include <sys/mbuf.h>
     39      1.1   thorpej #include <sys/socket.h>
     40      1.1   thorpej #include <sys/ioctl.h>
     41      1.1   thorpej #include <sys/errno.h>
     42      1.1   thorpej #include <sys/syslog.h>
     43      1.1   thorpej #include <sys/select.h>
     44      1.1   thorpej #include <sys/device.h>
     45      1.2   thorpej #include <sys/queue.h>
     46      1.1   thorpej 
     47      1.1   thorpej #include <net/if.h>
     48      1.1   thorpej #include <net/if_dl.h>
     49      1.1   thorpej #include <net/if_types.h>
     50      1.1   thorpej 
     51  1.8.4.1        is #include <net/if_ether.h>
     52  1.8.4.1        is 
     53      1.1   thorpej #ifdef INET
     54      1.1   thorpej #include <netinet/in.h>
     55      1.1   thorpej #include <netinet/in_systm.h>
     56      1.1   thorpej #include <netinet/in_var.h>
     57      1.1   thorpej #include <netinet/ip.h>
     58  1.8.4.3        is #include <netinet/if_inarp.h>
     59      1.1   thorpej #endif
     60      1.1   thorpej 
     61      1.1   thorpej #ifdef NS
     62      1.1   thorpej #include <netns/ns.h>
     63      1.1   thorpej #include <netns/ns_if.h>
     64      1.1   thorpej #endif
     65      1.1   thorpej 
     66      1.1   thorpej #if NBPFILTER > 0
     67      1.1   thorpej #include <net/bpf.h>
     68      1.1   thorpej #include <net/bpfdesc.h>
     69      1.1   thorpej #endif
     70      1.1   thorpej 
     71      1.1   thorpej #include <machine/cpu.h>
     72      1.2   thorpej #include <machine/bus.h>
     73      1.5   mycroft #include <machine/intr.h>
     74      1.1   thorpej 
     75      1.1   thorpej #include <dev/ic/elink3var.h>
     76      1.1   thorpej #include <dev/ic/elink3reg.h>
     77      1.1   thorpej 
     78      1.1   thorpej #include <dev/isa/isavar.h>
     79      1.1   thorpej #include <dev/isa/elink.h>
     80      1.1   thorpej 
     81      1.1   thorpej int ep_isa_probe __P((struct device *, void *, void *));
     82      1.1   thorpej void ep_isa_attach __P((struct device *, struct device *, void *));
     83      1.1   thorpej 
     84      1.1   thorpej struct cfattach ep_isa_ca = {
     85      1.1   thorpej 	sizeof(struct ep_softc), ep_isa_probe, ep_isa_attach
     86      1.1   thorpej };
     87      1.1   thorpej 
     88      1.2   thorpej static	void epaddcard __P((int, int, int));
     89      1.1   thorpej 
     90      1.2   thorpej /*
     91      1.2   thorpej  * This keeps track of which ISAs have been through an ep probe sequence.
     92      1.2   thorpej  * A simple static variable isn't enough, since it's conceivable that
     93      1.2   thorpej  * a system might have more than one ISA bus.
     94      1.2   thorpej  *
     95      1.2   thorpej  * The "er_bus" member is the unit number of the parent ISA bus, e.g. "0"
     96      1.2   thorpej  * for "isa0".
     97      1.2   thorpej  */
     98      1.2   thorpej struct ep_isa_done_probe {
     99      1.2   thorpej 	LIST_ENTRY(ep_isa_done_probe)	er_link;
    100      1.2   thorpej 	int				er_bus;
    101      1.2   thorpej };
    102      1.2   thorpej static LIST_HEAD(, ep_isa_done_probe) ep_isa_all_probes;
    103      1.2   thorpej static int ep_isa_probes_initialized;
    104      1.2   thorpej 
    105      1.2   thorpej #define MAXEPCARDS	20	/* if you have more than 20, you lose */
    106      1.1   thorpej 
    107      1.1   thorpej static struct epcard {
    108      1.2   thorpej 	int	bus;
    109      1.1   thorpej 	int	iobase;
    110      1.1   thorpej 	int	irq;
    111      1.1   thorpej 	char	available;
    112      1.1   thorpej } epcards[MAXEPCARDS];
    113      1.1   thorpej static int nepcards;
    114      1.1   thorpej 
    115      1.1   thorpej static void
    116      1.2   thorpej epaddcard(bus, iobase, irq)
    117      1.2   thorpej 	int bus, iobase, irq;
    118      1.1   thorpej {
    119      1.1   thorpej 
    120      1.1   thorpej 	if (nepcards >= MAXEPCARDS)
    121      1.1   thorpej 		return;
    122      1.2   thorpej 	epcards[nepcards].bus = bus;
    123      1.1   thorpej 	epcards[nepcards].iobase = iobase;
    124      1.1   thorpej 	epcards[nepcards].irq = (irq == 2) ? 9 : irq;
    125      1.1   thorpej 	epcards[nepcards].available = 1;
    126      1.1   thorpej 	nepcards++;
    127      1.1   thorpej }
    128      1.1   thorpej 
    129      1.1   thorpej /*
    130      1.1   thorpej  * 3c509 cards on the ISA bus are probed in ethernet address order.
    131      1.1   thorpej  * The probe sequence requires careful orchestration, and we'd like
    132      1.1   thorpej  * like to allow the irq and base address to be wildcarded. So, we
    133      1.1   thorpej  * probe all the cards the first time epprobe() is called. On subsequent
    134      1.1   thorpej  * calls we look for matching cards.
    135      1.1   thorpej  */
    136      1.1   thorpej int
    137      1.1   thorpej ep_isa_probe(parent, match, aux)
    138      1.1   thorpej 	struct device *parent;
    139      1.1   thorpej 	void *match, *aux;
    140      1.1   thorpej {
    141      1.1   thorpej 	struct isa_attach_args *ia = aux;
    142      1.8   thorpej 	bus_space_tag_t iot = ia->ia_iot;
    143      1.8   thorpej 	bus_space_handle_t ioh;
    144      1.1   thorpej 	int slot, iobase, irq, i;
    145      1.2   thorpej 	u_int16_t vendor, model;
    146      1.2   thorpej 	struct ep_isa_done_probe *er;
    147      1.2   thorpej 	int bus = parent->dv_unit;
    148      1.2   thorpej 
    149      1.2   thorpej 	if (ep_isa_probes_initialized == 0) {
    150      1.2   thorpej 		LIST_INIT(&ep_isa_all_probes);
    151      1.2   thorpej 		ep_isa_probes_initialized = 1;
    152      1.2   thorpej 	}
    153      1.2   thorpej 
    154      1.2   thorpej 	/*
    155      1.2   thorpej 	 * Probe this bus if we haven't done so already.
    156      1.2   thorpej 	 */
    157      1.2   thorpej 	for (er = ep_isa_all_probes.lh_first; er != NULL;
    158      1.2   thorpej 	    er = er->er_link.le_next)
    159      1.2   thorpej 		if (er->er_bus == parent->dv_unit)
    160      1.2   thorpej 			goto bus_probed;
    161      1.2   thorpej 
    162      1.2   thorpej 	/*
    163      1.2   thorpej 	 * Mark this bus so we don't probe it again.
    164      1.2   thorpej 	 */
    165      1.2   thorpej 	er = (struct ep_isa_done_probe *)
    166      1.2   thorpej 	    malloc(sizeof(struct ep_isa_done_probe), M_DEVBUF, M_NOWAIT);
    167      1.2   thorpej 	if (er == NULL)
    168      1.2   thorpej 		panic("ep_isa_probe: can't allocate state storage");
    169      1.2   thorpej 
    170      1.2   thorpej 	er->er_bus = bus;
    171      1.2   thorpej 	LIST_INSERT_HEAD(&ep_isa_all_probes, er, er_link);
    172      1.2   thorpej 
    173      1.2   thorpej 	/*
    174      1.2   thorpej 	 * Map the Etherlink ID port for the probe sequence.
    175      1.2   thorpej 	 */
    176      1.8   thorpej 	if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) {
    177      1.7  christos 		printf("ep_isa_probe: can't map Etherlink ID port\n");
    178      1.3  christos 		return 0;
    179      1.2   thorpej 	}
    180      1.2   thorpej 
    181      1.2   thorpej 	for (slot = 0; slot < MAXEPCARDS; slot++) {
    182      1.8   thorpej 		elink_reset(iot, ioh, parent->dv_unit);
    183      1.8   thorpej 		elink_idseq(iot, ioh, ELINK_509_POLY);
    184      1.2   thorpej 
    185      1.2   thorpej 		/* Untag all the adapters so they will talk to us. */
    186      1.2   thorpej 		if (slot == 0)
    187      1.8   thorpej 			bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 0);
    188      1.1   thorpej 
    189      1.8   thorpej 		vendor = htons(epreadeeprom(iot, ioh, EEPROM_MFG_ID));
    190      1.2   thorpej 		if (vendor != MFG_ID)
    191      1.2   thorpej 			continue;
    192      1.1   thorpej 
    193      1.8   thorpej 		model = htons(epreadeeprom(iot, ioh, EEPROM_PROD_ID));
    194      1.2   thorpej 		if ((model & 0xfff0) != PROD_ID) {
    195      1.1   thorpej #ifndef trusted
    196      1.7  christos 			printf(
    197      1.2   thorpej 			 "ep_isa_probe: ignoring model %04x\n", model);
    198      1.1   thorpej #endif
    199      1.2   thorpej 			continue;
    200      1.1   thorpej 			}
    201      1.1   thorpej 
    202      1.8   thorpej 		iobase = epreadeeprom(iot, ioh, EEPROM_ADDR_CFG);
    203      1.2   thorpej 		iobase = (iobase & 0x1f) * 0x10 + 0x200;
    204      1.1   thorpej 
    205      1.8   thorpej 		irq = epreadeeprom(iot, ioh, EEPROM_RESOURCE_CFG);
    206      1.2   thorpej 		irq >>= 12;
    207      1.2   thorpej 		epaddcard(bus, iobase, irq);
    208      1.2   thorpej 
    209      1.2   thorpej 		/* so card will not respond to contention again */
    210      1.8   thorpej 		bus_space_write_1(iot, ioh, 0, TAG_ADAPTER + 1);
    211      1.2   thorpej 
    212      1.2   thorpej 		/*
    213      1.2   thorpej 		 * XXX: this should probably not be done here
    214      1.2   thorpej 		 * because it enables the drq/irq lines from
    215      1.2   thorpej 		 * the board. Perhaps it should be done after
    216      1.2   thorpej 		 * we have checked for irq/drq collisions?
    217      1.2   thorpej 		 */
    218      1.8   thorpej 		bus_space_write_1(iot, ioh, 0, ACTIVATE_ADAPTER_TO_CONFIG);
    219      1.1   thorpej 	}
    220      1.2   thorpej 	/* XXX should we sort by ethernet address? */
    221      1.2   thorpej 
    222      1.8   thorpej 	bus_space_unmap(iot, ioh, 1);
    223      1.2   thorpej 
    224      1.2   thorpej  bus_probed:
    225      1.1   thorpej 
    226      1.1   thorpej 	for (i = 0; i < nepcards; i++) {
    227      1.2   thorpej 		if (epcards[i].bus != bus)
    228      1.2   thorpej 			continue;
    229      1.1   thorpej 		if (epcards[i].available == 0)
    230      1.1   thorpej 			continue;
    231      1.1   thorpej 		if (ia->ia_iobase != IOBASEUNK &&
    232      1.1   thorpej 		    ia->ia_iobase != epcards[i].iobase)
    233      1.1   thorpej 			continue;
    234      1.1   thorpej 		if (ia->ia_irq != IRQUNK &&
    235      1.1   thorpej 		    ia->ia_irq != epcards[i].irq)
    236      1.1   thorpej 			continue;
    237      1.1   thorpej 		goto good;
    238      1.1   thorpej 	}
    239      1.1   thorpej 	return 0;
    240      1.1   thorpej 
    241      1.1   thorpej good:
    242      1.1   thorpej 	epcards[i].available = 0;
    243      1.1   thorpej 	ia->ia_iobase = epcards[i].iobase;
    244      1.1   thorpej 	ia->ia_irq = epcards[i].irq;
    245      1.1   thorpej 	ia->ia_iosize = 0x10;
    246      1.1   thorpej 	ia->ia_msize = 0;
    247      1.1   thorpej 	return 1;
    248      1.1   thorpej }
    249      1.1   thorpej 
    250      1.1   thorpej void
    251      1.1   thorpej ep_isa_attach(parent, self, aux)
    252      1.1   thorpej 	struct device *parent, *self;
    253      1.1   thorpej 	void *aux;
    254      1.1   thorpej {
    255      1.1   thorpej 	struct ep_softc *sc = (void *)self;
    256      1.1   thorpej 	struct isa_attach_args *ia = aux;
    257      1.8   thorpej 	bus_space_tag_t iot = ia->ia_iot;
    258      1.8   thorpej 	bus_space_handle_t ioh;
    259      1.1   thorpej 
    260      1.2   thorpej 	/* Map i/o space. */
    261      1.8   thorpej 	if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh))
    262      1.2   thorpej 		panic("ep_isa_attach: can't map i/o space");
    263      1.2   thorpej 
    264      1.8   thorpej 	sc->sc_iot = iot;
    265      1.2   thorpej 	sc->sc_ioh = ioh;
    266      1.1   thorpej 	sc->bustype = EP_BUS_ISA;
    267      1.1   thorpej 
    268      1.7  christos 	printf(": 3Com 3C509 Ethernet\n");
    269      1.1   thorpej 
    270  1.8.4.1        is 	/* we can't easily tell if this is a 3c509, 3c509B, or 3c515 */
    271  1.8.4.1        is 	epconfig(sc, EP_CHIPSET_UNKNOWN);	/* XXX */
    272      1.1   thorpej 
    273      1.1   thorpej 	sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
    274      1.1   thorpej 	    IPL_NET, epintr, sc);
    275      1.1   thorpej }
    276