1/*	$NetBSD: if_ne_neptune.c,v 1.20 2010/03/03 13:39:57 tsutsui 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 1.20 2010/03/03 13:39:57 tsutsui 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#include <machine/bus.h>
63
64#include <dev/ic/dp8390reg.h>
65#include <dev/ic/dp8390var.h>
66
67#include <dev/ic/ne2000reg.h>
68#include <dev/ic/ne2000var.h>
69
70#include <arch/x68k/dev/neptunevar.h>
71
72static int ne_neptune_match(device_t, cfdata_t, void *);
73static void ne_neptune_attach(device_t, device_t, void *);
74
75#define ne_neptune_softc ne2000_softc
76
77CFATTACH_DECL_NEW(ne_neptune, sizeof(struct ne_neptune_softc),
78    ne_neptune_match, ne_neptune_attach, NULL, NULL);
79
80int
81ne_neptune_match(device_t parent, cfdata_t match, void *aux)
82{
83	struct neptune_attach_args *na = aux;
84	bus_space_tag_t nict = na->na_bst;
85	bus_space_handle_t nich;
86	bus_space_tag_t asict;
87	bus_space_handle_t asich;
88	int rv = 0;
89
90	if (na->na_addr == NEPTUNECF_ADDR_DEFAULT)
91		na->na_addr = 0x300;
92
93	/* Make sure this is a valid NE[12]000 i/o address. */
94	if ((na->na_addr & 0x1f) != 0)
95		return (0);
96
97	/* Map i/o space. */
98	if (bus_space_map(nict, na->na_addr, NE2000_NPORTS*2, 0, &nich))
99		return (0);
100
101	asict = nict;
102	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
103	    NE2000_ASIC_NPORTS*2, &asich))
104		goto out;
105
106	/* Look for an NE2000-compatible card. */
107	rv = ne2000_detect(nict, nich, asict, asich);
108
109 out:
110	bus_space_unmap(nict, nich, NE2000_NPORTS);
111	return (rv != 0) ? 1 : 0;
112}
113
114void
115ne_neptune_attach(device_t parent, device_t self, void *aux)
116{
117	struct ne_neptune_softc *nsc = device_private(self);
118	struct dp8390_softc *dsc = &nsc->sc_dp8390;
119	struct neptune_attach_args *na = aux;
120	bus_space_tag_t nict = na->na_bst;
121	bus_space_handle_t nich;
122	bus_space_tag_t asict = nict;
123	bus_space_handle_t asich;
124	const char *typestr;
125	int netype;
126
127	dsc->sc_dev = self;
128	aprint_normal("\n");
129
130	/* Map i/o space. */
131	if (bus_space_map(nict, na->na_addr, NE2000_NPORTS*2, 0, &nich)) {
132		aprint_error_dev(self, "can't map i/o space\n");
133		return;
134	}
135
136	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
137	    NE2000_ASIC_NPORTS*2, &asich)) {
138		aprint_error_dev(self, "can't subregion i/o space\n");
139		return;
140	}
141
142	dsc->sc_regt = nict;
143	dsc->sc_regh = nich;
144
145	nsc->sc_asict = asict;
146	nsc->sc_asich = asich;
147
148	/*
149	 * Detect it again, so we can print some information about the
150	 * interface.
151	 */
152	netype = ne2000_detect(nict, nich, asict, asich);
153	switch (netype) {
154	case NE2000_TYPE_NE1000:
155		typestr = "NE1000";
156		break;
157
158	case NE2000_TYPE_NE2000:
159		typestr = "NE2000";
160		break;
161
162	case NE2000_TYPE_RTL8019:
163		typestr = "NE2000 (RTL8019)";
164		break;
165
166	default:
167		aprint_error_dev(self, "where did the card go?!\n");
168		return;
169	}
170
171	aprint_normal_dev(self, "%s Ethernet\n", typestr);
172
173	/* This interface is always enabled. */
174	dsc->sc_enabled = 1;
175
176	/*
177	 * Do generic NE2000 attach.  This will read the station address
178	 * from the EEPROM.
179	 */
180	ne2000_attach(nsc, NULL);
181
182	/* Establish the interrupt handler. */
183	if (neptune_intr_establish(na->na_intr, "ne", dp8390_intr, dsc))
184		aprint_error_dev(self,
185		    "couldn't establish interrupt handler\n");
186}
187