1 /* $NetBSD: if_ne_mainbus.c,v 1.3 2012/12/01 03:16:46 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_mainbus.c,v 1.3 2012/12/01 03:16:46 tsutsui Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/mbuf.h>
39 #include <sys/socket.h>
40 #include <sys/ioctl.h>
41 #include <sys/errno.h>
42 #include <sys/syslog.h>
43 #include <sys/select.h>
44 #include <sys/device.h>
45 #include <sys/bus.h>
46
47 #include <net/if.h>
48 #include <net/if_dl.h>
49 #include <net/if_ether.h>
50 #include <net/if_media.h>
51
52 #include <sys/intr.h>
53
54 #include <dev/ic/dp8390reg.h>
55 #include <dev/ic/dp8390var.h>
56
57 #include <dev/ic/ne2000reg.h>
58 #include <dev/ic/ne2000var.h>
59
60 #include <machine/autoconf.h>
61
62 #include <sh3/exception.h>
63
64 static int ne_mainbus_match(device_t, cfdata_t, void *);
65 static void ne_mainbus_attach(device_t, device_t, void *);
66
67 struct ne_mainbus_softc {
68 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */
69
70 void *sc_ih; /* interrupt cookie */
71 };
72
73 CFATTACH_DECL_NEW(ne_mainbus, sizeof(struct ne_mainbus_softc),
74 ne_mainbus_match, ne_mainbus_attach, NULL, NULL);
75
76 extern struct _bus_space t_sh7706lan_bus_io;
77
78 static int
ne_mainbus_match(device_t parent,cfdata_t cf,void * aux)79 ne_mainbus_match(device_t parent, cfdata_t cf, void *aux)
80 {
81 struct mainbus_attach_args *maa = (struct mainbus_attach_args *)aux;
82 bus_space_tag_t nict = &t_sh7706lan_bus_io;
83 bus_space_handle_t nich;
84 bus_space_tag_t asict;
85 bus_space_handle_t asich;
86 int rv = 0;
87
88 if (strcmp(maa->ma_name, "ne") != 0)
89 return 0;
90
91 /* Map i/o space. */
92 if (bus_space_map(nict, 0x10000300, NE2000_NPORTS, 0, &nich))
93 return 0;
94
95 asict = nict;
96 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
97 NE2000_ASIC_NPORTS, &asich))
98 goto out;
99
100 /* Look for an NE2000-compatible card. */
101 rv = ne2000_detect(nict, nich, asict, asich);
102
103 out:
104 bus_space_unmap(nict, nich, NE2000_NPORTS);
105 return rv;
106 }
107
108 static void
ne_mainbus_attach(device_t parent,device_t self,void * aux)109 ne_mainbus_attach(device_t parent, device_t self, void *aux)
110 {
111 struct ne_mainbus_softc *msc = device_private(self);
112 struct ne2000_softc *nsc = &msc->sc_ne2000;
113 struct dp8390_softc *dsc = &nsc->sc_dp8390;
114 bus_space_tag_t nict = &t_sh7706lan_bus_io;
115 bus_space_handle_t nich;
116 bus_space_tag_t asict = nict;
117 bus_space_handle_t asich;
118 const char *typestr;
119 int netype;
120
121 dsc->sc_dev = self;
122
123 aprint_naive("\n");
124 aprint_normal("\n");
125
126 /* Map i/o space. */
127 if (bus_space_map(nict, 0x10000300, NE2000_NPORTS, 0, &nich)){
128 aprint_error_dev(self, "can't map i/o space\n");
129 return;
130 }
131
132 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
133 NE2000_ASIC_NPORTS, &asich)) {
134 aprint_error_dev(self, "can't subregion i/o space\n");
135 bus_space_unmap(nict, nich, NE2000_NPORTS);
136 return;
137 }
138
139 dsc->sc_regt = nict;
140 dsc->sc_regh = nich;
141
142 nsc->sc_asict = asict;
143 nsc->sc_asich = asich;
144
145 /*
146 * Detect it again, so we can print some information about the
147 * interface.
148 */
149 netype = ne2000_detect(nict, nich, asict, asich);
150 switch (netype) {
151 case NE2000_TYPE_NE1000:
152 typestr = "NE1000";
153 break;
154
155 case NE2000_TYPE_NE2000:
156 typestr = "NE2000";
157 break;
158
159 case NE2000_TYPE_RTL8019:
160 typestr = "NE2000 (RTL8019)";
161 break;
162
163 default:
164 aprint_error_dev(self, "where did the card go?!\n");
165 bus_space_unmap(nict, nich, NE2000_NPORTS);
166 return;
167 }
168
169 aprint_normal_dev(self, "%s Ethernet\n", typestr);
170
171 /* This interface is always enabled. */
172 dsc->sc_enabled = 1;
173
174 /* force 8bit */
175 nsc->sc_quirk |= NE2000_QUIRK_8BIT;
176
177 /*
178 * Do generic NE2000 attach. This will read the station address
179 * from the EEPROM.
180 */
181 ne2000_attach(nsc, NULL);
182
183 /* Establish the interrupt handler. */
184 msc->sc_ih = intc_intr_establish(SH7709_INTEVT2_IRQ2, IST_LEVEL,
185 IPL_NET, dp8390_intr, dsc);
186 if (msc->sc_ih == NULL)
187 aprint_error_dev(self,
188 "couldn't establish interrupt handler\n");
189 }
190