1/*	$NetBSD$	*/
2/*
3 * Copyright (c) 2010 KIYOHARA Takashi
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28#include <sys/cdefs.h>
29__KERNEL_RCSID(0, "$NetBSD$");
30
31#include <sys/param.h>
32#include <sys/bus.h>
33#include <sys/device.h>
34#include <sys/errno.h>
35
36#include <machine/autoconf.h>
37#include <machine/intr.h>
38#include <machine/mmeye.h>
39
40#include <net/if.h>
41#include <net/if_dl.h>
42#include <net/if_ether.h>
43#include <net/if_media.h>
44
45#include <dev/ic/dp8390reg.h>
46#include <dev/ic/dp8390var.h>
47
48#include <dev/ic/ne2000reg.h>
49#include <dev/ic/ne2000var.h>
50
51#include "locators.h"
52
53static int ne_mainbus_match(device_t, cfdata_t , void *);
54static void ne_mainbus_attach(device_t, device_t, void *);
55
56CFATTACH_DECL_NEW(ne_mainbus, sizeof(struct ne2000_softc),
57    ne_mainbus_match, ne_mainbus_attach, NULL, NULL);
58
59static int
60ne_mainbus_match(device_t parent, cfdata_t match, void *aux)
61{
62	struct mainbus_attach_args *ma = aux;
63	bus_space_tag_t nict, asict;
64	bus_space_handle_t nich, asich;
65	int rv = 0;
66
67	if (strcmp(ma->ma_name, match->cf_name) != 0)
68		return 0;
69
70	/* Disallow wildcarded values. */
71	if (ma->ma_addr1 == MAINBUSCF_ADDR1_DEFAULT ||
72	    ma->ma_irq1 == MAINBUSCF_IRQ1_DEFAULT)
73		return 0;
74
75	/* Make sure this is a valid NE[12]000 i/o address. */
76	if ((ma->ma_addr1 & 0x1f) != 0)
77		return 0;
78
79	/* Map i/o space. */
80	nict = SH3_BUS_SPACE_PCMCIA_IO;
81	if (bus_space_map(nict, ma->ma_addr1, NE2000_NPORTS, 0, &nich))
82		return 0;
83
84	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
85	    NE2000_ASIC_NPORTS, &asich))
86		goto out;
87	asict = nict;
88
89	/* Look for an NE2000-compatible card. */
90	rv = ne2000_detect(nict, nich, asict, asich);
91
92 out:
93	bus_space_unmap(nict, nich, NE2000_NPORTS);
94	return rv;
95}
96
97void
98ne_mainbus_attach(device_t parent, device_t self, void *aux)
99{
100	struct ne2000_softc *sc = device_private(self);
101	struct dp8390_softc *dsc = &sc->sc_dp8390;
102	struct mainbus_attach_args *ma = aux;
103	bus_space_tag_t nict, asict;
104	bus_space_handle_t nich, asich;
105	int netype;
106	const char *typestr;
107	void *ih;
108
109	dsc->sc_dev = self;
110	aprint_normal("\n");
111
112	/* Map i/o space. */
113	nict = SH3_BUS_SPACE_PCMCIA_IO;
114	if (bus_space_map(nict, ma->ma_addr1, NE2000_NPORTS, 0, &nich)) {
115		aprint_error_dev(self, "can't map i/o space\n");
116		return;
117	}
118
119	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
120	    NE2000_ASIC_NPORTS, &asich)) {
121		aprint_error_dev(self, "can't subregion i/o space\n");
122		return;
123	}
124	asict = nict;
125
126	dsc->sc_regt = nict;
127	dsc->sc_regh = nich;
128
129	sc->sc_asict = asict;
130	sc->sc_asich = asich;
131
132	/*
133	 * Detect it again, so we can print some information about the
134	 * interface.
135	 */
136	netype = ne2000_detect(nict, nich, asict, asich);
137	switch (netype) {
138	case NE2000_TYPE_RTL8019:
139		typestr = "NE2000 (RTL8019)";
140		break;
141
142	case NE2000_TYPE_NE1000:
143	case NE2000_TYPE_NE2000:
144	default:
145		aprint_error_dev(self, "where did the card go?!\n");
146		return;
147	}
148
149	aprint_normal_dev(self, "%s Ethernet\n", typestr);
150
151	/* This interface is always enabled. */
152	dsc->sc_enabled = 1;
153
154	/*
155	 * Do generic NE2000 attach.  This will read the station address
156	 * from the EEPROM.
157	 */
158	ne2000_attach(sc, NULL);
159
160	/* Establish the interrupt handler. */
161	ih = mmeye_intr_establish(ma->ma_irq1, IST_LEVEL, IPL_NET,
162	    dp8390_intr, dsc);
163	if (ih == NULL)
164		aprint_error_dev(self,
165		    "couldn't establish interrupt handler\n");
166}
167