1 /* $NetBSD: if_ne_xsurf.c,v 1.2 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
34 /*
35 * X-Surf driver, ne(4) attachment.
36 */
37
38 #include <sys/param.h>
39 #include <sys/device.h>
40 #include <sys/mbuf.h>
41 #include <sys/socket.h>
42 #include <sys/syslog.h>
43 #include <sys/systm.h>
44 #include <sys/bus.h>
45
46 #include <net/if.h>
47 #include <net/if_media.h>
48 #include <net/if_ether.h>
49
50 #include <dev/ic/dp8390reg.h>
51 #include <dev/ic/dp8390var.h>
52
53 #include <dev/ic/ne2000reg.h>
54 #include <dev/ic/ne2000var.h>
55
56 #include <dev/ic/rtl80x9reg.h>
57 #include <dev/ic/rtl80x9var.h>
58
59 #include <amiga/amiga/device.h>
60 #include <amiga/amiga/isr.h>
61
62 #include <amiga/dev/xsurfvar.h>
63 #include <amiga/dev/zbusvar.h>
64
65 int ne_xsurf_match(device_t, cfdata_t , void *);
66 void ne_xsurf_attach(device_t, device_t, void *);
67
68 struct ne_xsurf_softc {
69 struct ne2000_softc sc_ne2000;
70 struct bus_space_tag sc_bst;
71 struct isr sc_isr;
72 };
73
74 CFATTACH_DECL_NEW(ne_xsurf, sizeof(struct ne_xsurf_softc),
75 ne_xsurf_match, ne_xsurf_attach, NULL, NULL);
76
77 /*
78 * The Amiga address are shifted by one bit to the ISA-Bus, but
79 * this is handled by the bus_space functions.
80 */
81 #define NE_XSURF_NPORTS 0x20
82 #define NE_XSURF_NICBASE 0x0300 /* 0x0600 */
83 #define NE_XSURF_NICSIZE 0x10
84 #define NE_XSURF_ASICBASE 0x0310 /* 0x0620 */
85 #define NE_XSURF_ASICSIZE 0x10
86
87 #define XSURF_NE_OFFSET 0x8000
88
89 /*
90 * Clockport offsets.
91 */
92 #define XSURF_CP1_BASE 0xA001
93 #define XSURF_CP2_BASE 0xC000
94
95 /*
96 * E3B Deneb firmware v11 creates fake X-Surf autoconfig entry.
97 * Do not attach ne driver to this fake card, otherwise kernel panic
98 * may occur.
99 */
100 #define DENEB_XSURF_SERNO 0xC0FFEE01 /* Serial of the fake card */
101
102 int
ne_xsurf_match(device_t parent,cfdata_t cf,void * aux)103 ne_xsurf_match(device_t parent, cfdata_t cf, void *aux)
104 {
105 struct xsurfbus_attach_args *xap = aux;
106
107 if (strcmp(xap->xaa_name, "ne_xsurf") != 0)
108 return 0;
109
110 return 1;
111 }
112
113 /*
114 * Install interface into kernel networking data structures.
115 */
116 void
ne_xsurf_attach(device_t parent,device_t self,void * aux)117 ne_xsurf_attach(device_t parent, device_t self, void *aux)
118 {
119 struct ne_xsurf_softc *zsc = device_private(self);
120 struct ne2000_softc *nsc = &zsc->sc_ne2000;
121 struct dp8390_softc *dsc = &nsc->sc_dp8390;
122
123 struct xsurfbus_attach_args *xap = aux;
124
125 bus_space_tag_t nict = &zsc->sc_bst;
126 bus_space_handle_t nich;
127 bus_space_tag_t asict = nict;
128 bus_space_handle_t asich;
129
130 dsc->sc_dev = self;
131 dsc->sc_mediachange = rtl80x9_mediachange;
132 dsc->sc_mediastatus = rtl80x9_mediastatus;
133 dsc->init_card = rtl80x9_init_card;
134 dsc->sc_media_init = rtl80x9_media_init;
135
136 zsc->sc_bst.base = xap->xaa_base;
137
138 zsc->sc_bst.absm = &amiga_bus_stride_2;
139
140 aprint_normal("\n");
141
142 /* Map i/o space. */
143 if (bus_space_map(nict, NE_XSURF_NICBASE,
144 NE_XSURF_NPORTS, 0, &nich)) {
145 aprint_error_dev(self, "can't map nic i/o space\n");
146 return;
147 }
148
149 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
150 NE_XSURF_ASICSIZE, &asich)) {
151 aprint_error_dev(self, "can't map asic i/o space\n");
152 return;
153 }
154
155 dsc->sc_regt = nict;
156 dsc->sc_regh = nich;
157
158 nsc->sc_asict = asict;
159 nsc->sc_asich = asich;
160
161 /* This interface is always enabled. */
162 dsc->sc_enabled = 1;
163
164 /*
165 * Do generic NE2000 attach. This will read the station address
166 * from the EEPROM.
167 */
168 ne2000_attach(nsc, NULL);
169
170 zsc->sc_isr.isr_intr = dp8390_intr;
171 zsc->sc_isr.isr_arg = dsc;
172 zsc->sc_isr.isr_ipl = 2;
173 add_isr(&zsc->sc_isr);
174 }
175