1 /* $NetBSD: if_ne_mainbus.c,v 1.1 2011/02/19 10:46:28 kiyohara Exp $ */
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: if_ne_mainbus.c,v 1.1 2011/02/19 10:46:28 kiyohara Exp $");
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
53 static int ne_mainbus_match(device_t, cfdata_t , void *);
54 static void ne_mainbus_attach(device_t, device_t, void *);
55
56 CFATTACH_DECL_NEW(ne_mainbus, sizeof(struct ne2000_softc),
57 ne_mainbus_match, ne_mainbus_attach, NULL, NULL);
58
59 static int
ne_mainbus_match(device_t parent,cfdata_t match,void * aux)60 ne_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
97 void
ne_mainbus_attach(device_t parent,device_t self,void * aux)98 ne_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