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if_le_tc.c revision 1.1 
      1 /*	$NetBSD: if_le_tc.c,v 1.1 1996/04/18 00:50:14 cgd 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 
     43 #ifdef INET
     44 #include <netinet/in.h>
     45 #include <netinet/if_ether.h>
     46 #endif
     47 
     48 #include <dev/tc/if_levar.h>
     49 #include <dev/ic/am7990reg.h>
     50 #define LE_NEED_BUF_CONTIG
     51 #include <dev/ic/am7990var.h>
     52 
     53 #include <dev/tc/tcvar.h>
     54 
     55 int	le_tc_match __P((struct device *, void *, void *));
     56 void	le_tc_attach __P((struct device *, struct device *, void *));
     57 
     58 struct cfattach le_tc_ca = {
     59 	sizeof(struct le_softc), le_tc_match, le_tc_attach
     60 };
     61 
     62 #define	LE_OFFSET_RAM		0x0
     63 #define	LE_OFFSET_LANCE		0x100000
     64 #define	LE_OFFSET_ROM		0x1c0000
     65 
     66 int
     67 le_tc_match(parent, match, aux)
     68 	struct device *parent;
     69 	void *match, *aux;
     70 {
     71 	struct tc_attach_args *d = aux;
     72 
     73 	if (strncmp("PMAD-AA ", d->ta_modname, TC_ROM_LLEN) &&
     74 	    strncmp("PMAD-BA ", d->ta_modname, TC_ROM_LLEN))
     75 		return (0);
     76 
     77 	return (1);
     78 }
     79 
     80 void
     81 le_tc_attach(parent, self, aux)
     82 	struct device *parent, *self;
     83 	void *aux;
     84 {
     85 	register struct le_softc *sc = (void *)self;
     86 	struct tc_attach_args *d = aux;
     87 
     88 	/*
     89 	 * It's on the turbochannel proper, or a kn02
     90 	 * baseboard implementation of a TC option card.
     91 	 */
     92 	sc->sc_r1 = (struct lereg1 *)(d->ta_addr + LE_OFFSET_LANCE);
     93 	sc->sc_mem = (void *)(d->ta_addr + LE_OFFSET_RAM);
     94 
     95 	sc->sc_copytodesc = am7990_copytobuf_contig;
     96 	sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
     97 	sc->sc_copytobuf = am7990_copytobuf_contig;
     98 	sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
     99 	sc->sc_zerobuf = am7990_zerobuf_contig;
    100 
    101 	/*
    102 	 * TC lance boards have onboard SRAM buffers.  DMA
    103 	 * between the onbard RAM and main memory is not possible,
    104 	 * so  DMA setup is not required.
    105 	 */
    106 
    107 	dec_le_common_attach(sc, (u_char *)(d->ta_addr + LE_OFFSET_ROM + 2));
    108 
    109 	tc_intr_establish(parent, d->ta_cookie, TC_IPL_NET, leintr, sc);
    110 }
    111