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if_ne_neptune.c revision 1.19
      1 /*	$NetBSD: if_ne_neptune.c,v 1.19 2010/01/19 22:06:23 pooka Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9  * NASA Ames Research Center.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: if_ne_neptune.c,v 1.19 2010/01/19 22:06:23 pooka Exp $");
     35 
     36 #include "opt_inet.h"
     37 #include "opt_ns.h"
     38 
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/mbuf.h>
     42 #include <sys/socket.h>
     43 #include <sys/ioctl.h>
     44 #include <sys/errno.h>
     45 #include <sys/syslog.h>
     46 #include <sys/select.h>
     47 #include <sys/device.h>
     48 
     49 #include <net/if.h>
     50 #include <net/if_dl.h>
     51 #include <net/if_ether.h>
     52 #include <net/if_media.h>
     53 
     54 #ifdef INET
     55 #include <netinet/in.h>
     56 #include <netinet/in_systm.h>
     57 #include <netinet/in_var.h>
     58 #include <netinet/ip.h>
     59 #include <netinet/if_inarp.h>
     60 #endif
     61 
     62 #ifdef NS
     63 #include <netns/ns.h>
     64 #include <netns/ns_if.h>
     65 #endif
     66 
     67 #include <machine/bus.h>
     68 
     69 #include <dev/ic/dp8390reg.h>
     70 #include <dev/ic/dp8390var.h>
     71 
     72 #include <dev/ic/ne2000reg.h>
     73 #include <dev/ic/ne2000var.h>
     74 
     75 #include <dev/ic/rtl80x9reg.h>
     76 #include <dev/ic/rtl80x9var.h>
     77 
     78 #include <arch/x68k/dev/neptunevar.h>
     79 
     80 static int ne_neptune_match(device_t, cfdata_t, void *);
     81 static void ne_neptune_attach(device_t, device_t, void *);
     82 
     83 #define ne_neptune_softc ne2000_softc
     84 
     85 CFATTACH_DECL_NEW(ne_neptune, sizeof(struct ne_neptune_softc),
     86     ne_neptune_match, ne_neptune_attach, NULL, NULL);
     87 
     88 int
     89 ne_neptune_match(device_t parent, cfdata_t match, void *aux)
     90 {
     91 	struct neptune_attach_args *na = aux;
     92 	bus_space_tag_t nict = na->na_bst;
     93 	bus_space_handle_t nich;
     94 	bus_space_tag_t asict;
     95 	bus_space_handle_t asich;
     96 	int rv = 0;
     97 
     98 	if (na->na_addr == NEPTUNECF_ADDR_DEFAULT)
     99 		na->na_addr = 0x300;
    100 
    101 	/* Make sure this is a valid NE[12]000 i/o address. */
    102 	if ((na->na_addr & 0x1f) != 0)
    103 		return (0);
    104 
    105 	/* Map i/o space. */
    106 	if (bus_space_map(nict, na->na_addr, NE2000_NPORTS*2, 0, &nich))
    107 		return (0);
    108 
    109 	asict = nict;
    110 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
    111 	    NE2000_ASIC_NPORTS*2, &asich))
    112 		goto out;
    113 
    114 	/* Look for an NE2000-compatible card. */
    115 	rv = ne2000_detect(nict, nich, asict, asich);
    116 
    117  out:
    118 	bus_space_unmap(nict, nich, NE2000_NPORTS);
    119 	return (rv != 0) ? 1 : 0;
    120 }
    121 
    122 void
    123 ne_neptune_attach(device_t parent, device_t self, void *aux)
    124 {
    125 	struct ne_neptune_softc *nsc = device_private(self);
    126 	struct dp8390_softc *dsc = &nsc->sc_dp8390;
    127 	struct neptune_attach_args *na = aux;
    128 	bus_space_tag_t nict = na->na_bst;
    129 	bus_space_handle_t nich;
    130 	bus_space_tag_t asict = nict;
    131 	bus_space_handle_t asich;
    132 	const char *typestr;
    133 	int netype;
    134 
    135 	dsc->sc_dev = self;
    136 	aprint_normal("\n");
    137 
    138 	/* Map i/o space. */
    139 	if (bus_space_map(nict, na->na_addr, NE2000_NPORTS*2, 0, &nich)) {
    140 		aprint_error_dev(self, "can't map i/o space\n");
    141 		return;
    142 	}
    143 
    144 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
    145 	    NE2000_ASIC_NPORTS*2, &asich)) {
    146 		aprint_error_dev(self, "can't subregion i/o space\n");
    147 		return;
    148 	}
    149 
    150 	dsc->sc_regt = nict;
    151 	dsc->sc_regh = nich;
    152 
    153 	nsc->sc_asict = asict;
    154 	nsc->sc_asich = asich;
    155 
    156 	/*
    157 	 * Detect it again, so we can print some information about the
    158 	 * interface.
    159 	 */
    160 	netype = ne2000_detect(nict, nich, asict, asich);
    161 	switch (netype) {
    162 	case NE2000_TYPE_NE1000:
    163 		typestr = "NE1000";
    164 		break;
    165 
    166 	case NE2000_TYPE_NE2000:
    167 		typestr = "NE2000";
    168 		/*
    169 		 * Check for a Realtek 8019.
    170 		 */
    171 		bus_space_write_1(nict, nich, ED_P0_CR,
    172 		    ED_CR_PAGE_0 | ED_CR_STP);
    173 		if (bus_space_read_1(nict, nich, NERTL_RTL0_8019ID0) ==
    174 								RTL0_8019ID0 &&
    175 		    bus_space_read_1(nict, nich, NERTL_RTL0_8019ID1) ==
    176 								RTL0_8019ID1) {
    177 			typestr = "NE2000 (RTL8019)";
    178 			dsc->sc_mediachange = rtl80x9_mediachange;
    179 			dsc->sc_mediastatus = rtl80x9_mediastatus;
    180 			dsc->init_card = rtl80x9_init_card;
    181 			dsc->sc_media_init = rtl80x9_media_init;
    182 		}
    183 		break;
    184 
    185 	default:
    186 		aprint_error_dev(self, "where did the card go?!\n");
    187 		return;
    188 	}
    189 
    190 	aprint_normal_dev(self, "%s Ethernet\n", typestr);
    191 
    192 	/* This interface is always enabled. */
    193 	dsc->sc_enabled = 1;
    194 
    195 	/*
    196 	 * Do generic NE2000 attach.  This will read the station address
    197 	 * from the EEPROM.
    198 	 */
    199 	ne2000_attach(nsc, NULL);
    200 
    201 	/* Establish the interrupt handler. */
    202 	if (neptune_intr_establish(na->na_intr, "ne", dp8390_intr, dsc))
    203 		aprint_error_dev(self,
    204 		    "couldn't establish interrupt handler\n");
    205 }
    206