1 /* $NetBSD: if_ne_intio.c,v 1.20 2024/01/06 05:16:57 isaki Exp $ */
2
3 /*
4 * Copyright (c) 2001 Tetsuya Isaki. 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 WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 /*
29 * Ethernet part of Nereid Ethernet/USB/Memory board
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: if_ne_intio.c,v 1.20 2024/01/06 05:16:57 isaki Exp $");
34
35 #include "opt_inet.h"
36 #include "opt_ns.h"
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/mbuf.h>
41 #include <sys/socket.h>
42 #include <sys/select.h>
43 #include <sys/device.h>
44
45 #include <net/if.h>
46 #include <net/if_dl.h>
47 #include <net/if_ether.h>
48 #include <net/if_media.h>
49
50 #ifdef INET
51 #include <netinet/in.h>
52 #include <netinet/in_systm.h>
53 #include <netinet/in_var.h>
54 #include <netinet/ip.h>
55 #include <netinet/if_inarp.h>
56 #endif
57
58 #if BPFILTER > 0
59 #include <net/bpf.h>
60 #endif
61
62 #include <machine/bus.h>
63 #include <machine/cpu.h>
64
65 #include <dev/ic/dp8390reg.h>
66 #include <dev/ic/dp8390var.h>
67 #include <dev/ic/ne2000reg.h>
68 #include <dev/ic/ne2000var.h>
69
70 #include <arch/x68k/dev/intiovar.h>
71
72 #define NE_INTIO_ADDR (0xece300)
73 #define NE_INTIO_ADDR2 (0xeceb00)
74 #define NE_INTIO_INTR (0xf9)
75 #define NE_INTIO_INTR2 (0xf8)
76
77 static int ne_intio_match(device_t, cfdata_t, void *);
78 static void ne_intio_attach(device_t, device_t, void *);
79
80 #define ne_intio_softc ne2000_softc
81
82 CFATTACH_DECL_NEW(ne_intio, sizeof(struct ne_intio_softc),
83 ne_intio_match, ne_intio_attach, NULL, NULL);
84
85 static int
ne_intio_match(device_t parent,cfdata_t cf,void * aux)86 ne_intio_match(device_t parent, cfdata_t cf, void *aux)
87 {
88 struct intio_attach_args *ia = aux;
89 bus_space_tag_t iot = ia->ia_bst;
90 bus_space_handle_t ioh;
91 bus_space_tag_t asict;
92 bus_space_handle_t asich;
93 int rv = 0;
94
95 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT)
96 ia->ia_addr = NE_INTIO_ADDR;
97 if (ia->ia_intr == INTIOCF_INTR_DEFAULT)
98 ia->ia_intr = NE_INTIO_INTR;
99
100 /* fixed parameters */
101 if (!(ia->ia_addr == NE_INTIO_ADDR && ia->ia_intr == NE_INTIO_INTR ) &&
102 !(ia->ia_addr == NE_INTIO_ADDR2 && ia->ia_intr == NE_INTIO_INTR2) )
103 return 0;
104
105 /* Make sure this is a valid NE2000 I/O address */
106 if ((ia->ia_addr & 0x1f) != 0)
107 return 0;
108
109 /* Check whether the board is inserted or not */
110 if (badaddr((void *)IIOV(ia->ia_addr)))
111 return 0;
112
113 /* Map I/O space */
114 if (bus_space_map(iot, ia->ia_addr, NE2000_NPORTS * 2,
115 BUS_SPACE_MAP_SHIFTED_EVEN, &ioh))
116 return 0;
117
118 asict = iot;
119 if (bus_space_subregion(iot, ioh, NE2000_ASIC_OFFSET * 2,
120 NE2000_ASIC_NPORTS * 2, &asich))
121 goto out;
122
123 /* Look for an NE2000 compatible card */
124 rv = ne2000_detect(iot, ioh, asict, asich);
125
126 out:
127 bus_space_unmap(iot, ioh, NE2000_NPORTS);
128 return (rv != 0) ? 1 : 0;
129 }
130
131 static void
ne_intio_attach(device_t parent,device_t self,void * aux)132 ne_intio_attach(device_t parent, device_t self, void *aux)
133 {
134 struct ne_intio_softc *sc = device_private(self);
135 struct dp8390_softc *dsc = &sc->sc_dp8390;
136 struct intio_attach_args *ia = aux;
137 bus_space_tag_t iot = ia->ia_bst;
138 bus_space_handle_t ioh;
139 bus_space_tag_t asict;
140 bus_space_handle_t asich;
141 const char *typestr;
142 int netype;
143
144 dsc->sc_dev = self;
145 aprint_normal(": Nereid Ethernet\n");
146
147 /* Map I/O space */
148 if (bus_space_map(iot, ia->ia_addr, NE2000_NPORTS * 2,
149 BUS_SPACE_MAP_SHIFTED_EVEN, &ioh)) {
150 aprint_error_dev(self, "can't map I/O space\n");
151 return;
152 }
153
154 asict = iot;
155 if (bus_space_subregion(iot, ioh, NE2000_ASIC_OFFSET * 2,
156 NE2000_ASIC_NPORTS * 2, &asich)) {
157 aprint_error_dev(self, "can't subregion I/O space\n");
158 return;
159 }
160
161 dsc->sc_regt = iot;
162 dsc->sc_regh = ioh;
163
164 sc->sc_asict = asict;
165 sc->sc_asich = asich;
166
167 /*
168 * detect it again, so we can print some information about
169 * the interface.
170 * XXX: Should I check NE1000 or NE2000 for Nereid?
171 */
172 netype = ne2000_detect(iot, ioh, asict, asich);
173 switch (netype) {
174 case NE2000_TYPE_NE1000:
175 typestr = "NE1000";
176 break;
177
178 case NE2000_TYPE_NE2000:
179 typestr = "NE2000";
180 break;
181
182 case NE2000_TYPE_RTL8019:
183 typestr = "NE2000 (RTL8019)";
184 break;
185
186 default:
187 aprint_error_dev(self, "where did the card go?!\n");
188 return;
189 }
190
191 aprint_normal_dev(self, "%s Ethernet\n", typestr);
192
193 /* This interface is always enabled */
194 dsc->sc_enabled = 1;
195
196 /*
197 * Do generic NE2000 attach.
198 * This will read the mac address from the EEPROM.
199 */
200 ne2000_attach(sc, NULL);
201
202 /* Establish the interrupt handler */
203 if (intio_intr_establish(ia->ia_intr, "ne", dp8390_intr, dsc))
204 aprint_error_dev(self,
205 "couldn't establish interrupt handler\n");
206 }
207