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if_le_tc.c revision 1.6 
      1 /*	$NetBSD: if_le_tc.c,v 1.6 1997/03/17 03:19:13 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996 Carnegie-Mellon University.
      5  * All rights reserved.
      6  *
      7  * Author: Chris G. Demetriou
      8  *
      9  * Permission to use, copy, modify and distribute this software and
     10  * its documentation is hereby granted, provided that both the copyright
     11  * notice and this permission notice appear in all copies of the
     12  * software, derivative works or modified versions, and any portions
     13  * thereof, and that both notices appear in supporting documentation.
     14  *
     15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  *
     19  * Carnegie Mellon requests users of this software to return to
     20  *
     21  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  *  School of Computer Science
     23  *  Carnegie Mellon University
     24  *  Pittsburgh PA 15213-3890
     25  *
     26  * any improvements or extensions that they make and grant Carnegie the
     27  * rights to redistribute these changes.
     28  */
     29 
     30 /*
     31  * LANCE on TurboChannel.
     32  */
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/mbuf.h>
     37 #include <sys/syslog.h>
     38 #include <sys/socket.h>
     39 #include <sys/device.h>
     40 
     41 #include <net/if.h>
     42 #include <net/if_ether.h>
     43 #include <net/if_media.h>
     44 
     45 #ifdef INET
     46 #include <netinet/in.h>
     47 #include <netinet/if_inarp.h>
     48 #endif
     49 
     50 #include <dev/ic/am7990reg.h>
     51 #include <dev/ic/am7990var.h>
     52 
     53 #include <dev/tc/if_levar.h>
     54 #include <dev/tc/tcvar.h>
     55 
     56 #ifdef __BROKEN_INDIRECT_CONFIG
     57 int	le_tc_match __P((struct device *, void *, void *));
     58 #else
     59 int	le_tc_match __P((struct device *, struct cfdata *, void *));
     60 #endif
     61 void	le_tc_attach __P((struct device *, struct device *, void *));
     62 
     63 struct cfattach le_tc_ca = {
     64 	sizeof(struct le_softc), le_tc_match, le_tc_attach
     65 };
     66 
     67 #define	LE_OFFSET_RAM		0x0
     68 #define	LE_OFFSET_LANCE		0x100000
     69 #define	LE_OFFSET_ROM		0x1c0000
     70 
     71 int
     72 le_tc_match(parent, match, aux)
     73 	struct device *parent;
     74 #ifdef __BROKEN_INDIRECT_CONFIG
     75 	void *match;
     76 #else
     77 	struct cfdata *match;
     78 #endif
     79 	void *aux;
     80 {
     81 	struct tc_attach_args *d = aux;
     82 
     83 	if (strncmp("PMAD-AA ", d->ta_modname, TC_ROM_LLEN) &&
     84 	    strncmp("PMAD-BA ", d->ta_modname, TC_ROM_LLEN))
     85 		return (0);
     86 
     87 	return (1);
     88 }
     89 
     90 void
     91 le_tc_attach(parent, self, aux)
     92 	struct device *parent, *self;
     93 	void *aux;
     94 {
     95 	register struct le_softc *lesc = (void *)self;
     96 	register struct am7990_softc *sc = &lesc->sc_am7990;
     97 	struct tc_attach_args *d = aux;
     98 
     99 	/*
    100 	 * It's on the turbochannel proper, or a kn02
    101 	 * baseboard implementation of a TC option card.
    102 	 */
    103 	lesc->sc_r1 = (struct lereg1 *)(d->ta_addr + LE_OFFSET_LANCE);
    104 	sc->sc_mem = (void *)(d->ta_addr + LE_OFFSET_RAM);
    105 
    106 	sc->sc_copytodesc = am7990_copytobuf_contig;
    107 	sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
    108 	sc->sc_copytobuf = am7990_copytobuf_contig;
    109 	sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
    110 	sc->sc_zerobuf = am7990_zerobuf_contig;
    111 
    112 	/*
    113 	 * TC lance boards have onboard SRAM buffers.  DMA
    114 	 * between the onbard RAM and main memory is not possible,
    115 	 * so  DMA setup is not required.
    116 	 */
    117 
    118 	dec_le_common_attach(sc, (u_char *)(d->ta_addr + LE_OFFSET_ROM + 2));
    119 
    120 	tc_intr_establish(parent, d->ta_cookie, TC_IPL_NET, am7990_intr, sc);
    121 }
    122