sys/dev/tc/if_le_tc.c

   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@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(device_t, cfdata_t, void *);
  64 static void     le_tc_attach(device_t, device_t, void *);
  65
  66 CFATTACH_DECL_NEW(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(device_t parent, cfdata_t cf, 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(device_t parent, device_t 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         sc->sc_dev = self;
  92
  93         /*
  94          * It's on the turbochannel proper, or a kn02
  95          * baseboard implementation of a TC option card.
  96          */
  97         lesc->sc_r1 = (struct lereg1 *)
  98             TC_DENSE_TO_SPARSE(TC_PHYS_TO_UNCACHED(d->ta_addr + LE_OFFSET_LANCE));
  99         sc->sc_mem = (void *)(d->ta_addr + LE_OFFSET_RAM);
 100
 101         sc->sc_copytodesc = lance_copytobuf_contig;
 102         sc->sc_copyfromdesc = lance_copyfrombuf_contig;
 103         sc->sc_copytobuf = lance_copytobuf_contig;
 104         sc->sc_copyfrombuf = lance_copyfrombuf_contig;
 105         sc->sc_zerobuf = lance_zerobuf_contig;
 106
 107         /*
 108          * TC lance boards have onboard SRAM buffers.  DMA
 109          * between the onbard RAM and main memory is not possible,
 110          * so  DMA setup is not required.
 111          */
 112
 113         dec_le_common_attach(&lesc->sc_am7990,
 114                              (uint8_t *)(d->ta_addr + LE_OFFSET_ROM + 2));
 115
 116         tc_intr_establish(parent, d->ta_cookie, TC_IPL_NET, am7990_intr, sc);
 117 }