sys/arch/mvme68k/dev/if_le.c

   1 /*      $NetBSD: if_le.c,v 1.34 2008/04/04 12:25:06 tsutsui Exp $       */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Charles M. Hannum.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*-
  33  * Copyright (c) 1992, 1993
  34  *      The Regents of the University of California.  All rights reserved.
  35  *
  36  * This code is derived from software contributed to Berkeley by
  37  * Ralph Campbell and Rick Macklem.
  38  *
  39  * Redistribution and use in source and binary forms, with or without
  40  * modification, are permitted provided that the following conditions
  41  * are met:
  42  * 1. Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  * 2. Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in the
  46  *    documentation and/or other materials provided with the distribution.
  47  * 3. Neither the name of the University nor the names of its contributors
  48  *    may be used to endorse or promote products derived from this software
  49  *    without specific prior written permission.
  50  *
  51  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  52  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  53  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  54  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  55  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  56  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  57  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  58  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  59  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  60  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  61  * SUCH DAMAGE.
  62  *
  63  *      @(#)if_le.c     8.2 (Berkeley) 11/16/93
  64  */
  65
  66 #include <sys/cdefs.h>
  67 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.34 2008/04/04 12:25:06 tsutsui Exp $");
  68
  69 #include "opt_inet.h"
  70 #include "bpfilter.h"
  71
  72 #include <sys/param.h>
  73 #include <sys/systm.h>
  74 #include <sys/mbuf.h>
  75 #include <sys/syslog.h>
  76 #include <sys/socket.h>
  77 #include <sys/device.h>
  78
  79 #include <uvm/uvm_extern.h>
  80
  81 #include <net/if.h>
  82 #include <net/if_ether.h>
  83 #include <net/if_media.h>
  84
  85 #ifdef INET
  86 #include <netinet/in.h>
  87 #include <netinet/if_inarp.h>
  88 #endif
  89
  90 #include <machine/autoconf.h>
  91 #include <machine/cpu.h>
  92 #include <machine/bus.h>
  93
  94 #include <mvme68k/dev/pccreg.h>
  95 #include <mvme68k/dev/pccvar.h>
  96
  97 #include <dev/ic/lancereg.h>
  98 #include <dev/ic/lancevar.h>
  99 #include <dev/ic/am7990reg.h>
 100 #include <dev/ic/am7990var.h>
 101
 102 #include <mvme68k/dev/if_lereg.h>
 103 #include <mvme68k/dev/if_levar.h>
 104
 105 #include "ioconf.h"
 106
 107 int le_pcc_match(device_t, cfdata_t, void *);
 108 void le_pcc_attach(device_t, device_t, void *);
 109
 110 CFATTACH_DECL_NEW(le_pcc, sizeof(struct le_softc),
 111     le_pcc_match, le_pcc_attach, NULL, NULL);
 112
 113 #if defined(_KERNEL_OPT)
 114 #include "opt_ddb.h"
 115 #endif
 116
 117 #ifdef DDB
 118 #define hide
 119 #else
 120 #define hide    static
 121 #endif
 122
 123 hide void le_pcc_wrcsr(struct lance_softc *, uint16_t, uint16_t);
 124 hide uint16_t le_pcc_rdcsr(struct lance_softc *, uint16_t);
 125
 126 hide void
 127 le_pcc_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
 128 {
 129         struct le_softc *lsc;
 130
 131         lsc = (struct le_softc *)sc;
 132         bus_space_write_2(lsc->sc_bust, lsc->sc_bush, LEPCC_RAP, port);
 133         bus_space_write_2(lsc->sc_bust, lsc->sc_bush, LEPCC_RDP, val);
 134 }
 135
 136 hide uint16_t
 137 le_pcc_rdcsr(struct lance_softc *sc, uint16_t port)
 138 {
 139         struct le_softc *lsc;
 140
 141         lsc = (struct le_softc *)sc;
 142         bus_space_write_2(lsc->sc_bust, lsc->sc_bush, LEPCC_RAP, port);
 143         return bus_space_read_2(lsc->sc_bust, lsc->sc_bush, LEPCC_RDP);
 144 }
 145
 146 /* ARGSUSED */
 147 int
 148 le_pcc_match(device_t parent, cfdata_t cf, void *aux)
 149 {
 150         struct pcc_attach_args *pa = aux;
 151
 152         if (strcmp(pa->pa_name, le_cd.cd_name))
 153                 return 0;
 154
 155         pa->pa_ipl = cf->pcccf_ipl;
 156         return 1;
 157 }
 158
 159 /* ARGSUSED */
 160 void
 161 le_pcc_attach(device_t parent, device_t self, void *aux)
 162 {
 163         struct le_softc *lsc;
 164         struct lance_softc *sc;
 165         struct pcc_attach_args *pa;
 166         bus_dma_segment_t seg;
 167         int rseg;
 168
 169         lsc = device_private(self);
 170         sc = &lsc->sc_am7990.lsc;
 171         sc->sc_dev = self;
 172         pa = aux;
 173
 174         /* Map control registers. */
 175         lsc->sc_bust = pa->pa_bust;
 176         bus_space_map(pa->pa_bust, pa->pa_offset, 4, 0, &lsc->sc_bush);
 177
 178         /* Get contiguous DMA-able memory for the lance */
 179         if (bus_dmamem_alloc(pa->pa_dmat, ether_data_buff_size, PAGE_SIZE, 0,
 180             &seg, 1, &rseg,
 181             BUS_DMA_NOWAIT | BUS_DMA_ONBOARD_RAM | BUS_DMA_24BIT)) {
 182                 aprint_error(": Failed to allocate ether buffer\n");
 183                 return;
 184         }
 185         if (bus_dmamem_map(pa->pa_dmat, &seg, rseg, ether_data_buff_size,
 186             (void **)&sc->sc_mem, BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) {
 187                 aprint_error(": Failed to map ether buffer\n");
 188                 bus_dmamem_free(pa->pa_dmat, &seg, rseg);
 189                 return;
 190         }
 191         sc->sc_addr = seg.ds_addr;
 192         sc->sc_memsize = ether_data_buff_size;
 193         sc->sc_conf3 = LE_C3_BSWP;
 194
 195         memcpy(sc->sc_enaddr, mvme_ea, ETHER_ADDR_LEN);
 196
 197         sc->sc_copytodesc = lance_copytobuf_contig;
 198         sc->sc_copyfromdesc = lance_copyfrombuf_contig;
 199         sc->sc_copytobuf = lance_copytobuf_contig;
 200         sc->sc_copyfrombuf = lance_copyfrombuf_contig;
 201         sc->sc_zerobuf = lance_zerobuf_contig;
 202
 203         sc->sc_rdcsr = le_pcc_rdcsr;
 204         sc->sc_wrcsr = le_pcc_wrcsr;
 205         sc->sc_hwinit = NULL;
 206
 207         am7990_config(&lsc->sc_am7990);
 208
 209         evcnt_attach_dynamic(&lsc->sc_evcnt, EVCNT_TYPE_INTR,
 210             pccintr_evcnt(pa->pa_ipl), "ether", device_xname(self));
 211
 212         pccintr_establish(PCCV_LE, am7990_intr, pa->pa_ipl, sc, &lsc->sc_evcnt);
 213
 214         pcc_reg_write(sys_pcc, PCCREG_LANCE_INTR_CTRL,
 215             pa->pa_ipl | PCC_IENABLE);
 216 }