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if_le_tc.c revision 1.20 
      1 /*	$NetBSD: if_le_tc.c,v 1.20 2006/03/31 17:39:33 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/cdefs.h>
     35 __KERNEL_RCSID(0, "$NetBSD: if_le_tc.c,v 1.20 2006/03/31 17:39:33 thorpej Exp $");
     36 
     37 #include "opt_inet.h"
     38 
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/mbuf.h>
     42 #include <sys/syslog.h>
     43 #include <sys/socket.h>
     44 #include <sys/device.h>
     45 
     46 #include <net/if.h>
     47 #include <net/if_ether.h>
     48 #include <net/if_media.h>
     49 
     50 #ifdef INET
     51 #include <netinet/in.h>
     52 #include <netinet/if_inarp.h>
     53 #endif
     54 
     55 #include <dev/ic/lancereg.h>
     56 #include <dev/ic/lancevar.h>
     57 #include <dev/ic/am7990reg.h>
     58 #include <dev/ic/am7990var.h>
     59 
     60 #include <dev/tc/if_levar.h>
     61 #include <dev/tc/tcvar.h>
     62 
     63 static int	le_tc_match(struct device *, struct cfdata *, void *);
     64 static void	le_tc_attach(struct device *, struct device *, void *);
     65 
     66 CFATTACH_DECL(le_tc, sizeof(struct le_softc),
     67     le_tc_match, le_tc_attach, NULL, NULL);
     68 
     69 #define	LE_OFFSET_RAM		0x0
     70 #define	LE_OFFSET_LANCE		0x100000
     71 #define	LE_OFFSET_ROM		0x1c0000
     72 
     73 static int
     74 le_tc_match(struct device *parent, struct cfdata *match, void *aux)
     75 {
     76 	struct tc_attach_args *d = aux;
     77 
     78 	if (strncmp("PMAD-AA ", d->ta_modname, TC_ROM_LLEN) != 0)
     79 		return (0);
     80 
     81 	return (1);
     82 }
     83 
     84 static void
     85 le_tc_attach(struct device *parent, struct device *self, void *aux)
     86 {
     87 	struct le_softc *lesc = device_private(self);
     88 	struct lance_softc *sc = &lesc->sc_am7990.lsc;
     89 	struct tc_attach_args *d = aux;
     90 
     91 	/*
     92 	 * It's on the turbochannel proper, or a kn02
     93 	 * baseboard implementation of a TC option card.
     94 	 */
     95 	lesc->sc_r1 = (struct lereg1 *)
     96 	    TC_DENSE_TO_SPARSE(TC_PHYS_TO_UNCACHED(d->ta_addr + LE_OFFSET_LANCE));
     97 	sc->sc_mem = (void *)(d->ta_addr + LE_OFFSET_RAM);
     98 
     99 	sc->sc_copytodesc = lance_copytobuf_contig;
    100 	sc->sc_copyfromdesc = lance_copyfrombuf_contig;
    101 	sc->sc_copytobuf = lance_copytobuf_contig;
    102 	sc->sc_copyfrombuf = lance_copyfrombuf_contig;
    103 	sc->sc_zerobuf = lance_zerobuf_contig;
    104 
    105 	/*
    106 	 * TC lance boards have onboard SRAM buffers.  DMA
    107 	 * between the onbard RAM and main memory is not possible,
    108 	 * so  DMA setup is not required.
    109 	 */
    110 
    111 	dec_le_common_attach(&lesc->sc_am7990,
    112 			     (u_char *)(d->ta_addr + LE_OFFSET_ROM + 2));
    113 
    114 	tc_intr_establish(parent, d->ta_cookie, TC_IPL_NET, am7990_intr, sc);
    115 }
    116