1 /* $NetBSD: if_ne_zbus.c,v 1.17 2023/12/20 00:40:42 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Bernd Ernesti.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: if_ne_zbus.c,v 1.17 2023/12/20 00:40:42 thorpej Exp $");
34
35 /*
36 * Thanks to Village Tronic for giving me a card.
37 * Bernd Ernesti
38 */
39
40 #include <sys/param.h>
41 #include <sys/device.h>
42 #include <sys/mbuf.h>
43 #include <sys/socket.h>
44 #include <sys/syslog.h>
45 #include <sys/systm.h>
46 #include <sys/bus.h>
47
48 #include <net/if.h>
49 #include <net/if_media.h>
50 #include <net/if_ether.h>
51
52 #include <dev/ic/dp8390reg.h>
53 #include <dev/ic/dp8390var.h>
54
55 #include <dev/ic/ne2000reg.h>
56 #include <dev/ic/ne2000var.h>
57
58 #include <dev/ic/rtl80x9reg.h>
59 #include <dev/ic/rtl80x9var.h>
60
61 #include <amiga/amiga/device.h>
62 #include <amiga/amiga/isr.h>
63
64 #include <amiga/dev/zbusvar.h>
65
66 int ne_zbus_match(device_t, cfdata_t , void *);
67 void ne_zbus_attach(device_t, device_t, void *);
68
69 struct ne_zbus_softc {
70 struct ne2000_softc sc_ne2000;
71 struct bus_space_tag sc_bst;
72 struct isr sc_isr;
73 };
74
75 CFATTACH_DECL_NEW(ne_zbus, sizeof(struct ne_zbus_softc),
76 ne_zbus_match, ne_zbus_attach, NULL, NULL);
77
78 /*
79 * The Amiga address are shifted by one bit to the ISA-Bus, but
80 * this is handled by the bus_space functions.
81 */
82 #define NE_ARIADNE_II_NPORTS 0x20
83 #define NE_ARIADNE_II_NICBASE 0x0300 /* 0x0600 */
84 #define NE_ARIADNE_II_NICSIZE 0x10
85 #define NE_ARIADNE_II_ASICBASE 0x0310 /* 0x0620 */
86 #define NE_ARIADNE_II_ASICSIZE 0x10
87
88 int
ne_zbus_match(device_t parent,cfdata_t cf,void * aux)89 ne_zbus_match(device_t parent, cfdata_t cf, void *aux)
90 {
91 struct zbus_args *zap = aux;
92
93 /* Ariadne II ethernet card */
94 if (zap->manid == 2167 && zap->prodid == 202)
95 return (1);
96
97 return (0);
98 }
99
100 /*
101 * Install interface into kernel networking data structures
102 */
103 void
ne_zbus_attach(device_t parent,device_t self,void * aux)104 ne_zbus_attach(device_t parent, device_t self, void *aux)
105 {
106 struct ne_zbus_softc *zsc = device_private(self);
107 struct ne2000_softc *nsc = &zsc->sc_ne2000;
108 struct dp8390_softc *dsc = &nsc->sc_dp8390;
109 struct zbus_args *zap = aux;
110 bus_space_tag_t nict = &zsc->sc_bst;
111 bus_space_handle_t nich;
112 bus_space_tag_t asict = nict;
113 bus_space_handle_t asich;
114
115 dsc->sc_dev = self;
116 dsc->sc_mediachange = rtl80x9_mediachange;
117 dsc->sc_mediastatus = rtl80x9_mediastatus;
118 dsc->init_card = rtl80x9_init_card;
119 dsc->sc_media_init = rtl80x9_media_init;
120
121 zsc->sc_bst.base = (u_long)zap->va + 0;
122
123 zsc->sc_bst.absm = &amiga_bus_stride_2;
124
125 aprint_normal("\n");
126
127 /* Map i/o space. */
128 if (bus_space_map(nict, NE_ARIADNE_II_NICBASE, NE_ARIADNE_II_NPORTS, 0, &nich)) {
129 aprint_error_dev(self, "can't map nic i/o space\n");
130 return;
131 }
132
133 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, NE_ARIADNE_II_ASICSIZE,
134 &asich)) {
135 aprint_error_dev(self, "can't map asic i/o space\n");
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 /* This interface is always enabled. */
146 dsc->sc_enabled = 1;
147
148 /*
149 * Do generic NE2000 attach. This will read the station address
150 * from the EEPROM.
151 */
152 ne2000_attach(nsc, NULL);
153
154 zsc->sc_isr.isr_intr = dp8390_intr;
155 zsc->sc_isr.isr_arg = dsc;
156 zsc->sc_isr.isr_ipl = 2;
157 add_isr(&zsc->sc_isr);
158 }
159