1 /* $NetBSD: if_ne_xsh.c,v 1.5 2023/12/20 00:40:42 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2013 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Radoslaw Kujawa.
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 100 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 <machine/cpu.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/ax88190var.h>
59
60 #include <amiga/amiga/device.h>
61 #include <amiga/amiga/isr.h>
62
63 #include <amiga/dev/xshvar.h>
64 #include <amiga/dev/zbusvar.h>
65
66 /* #define NE_XSH_DEBUG 1 */
67
68 int ne_xsh_match(device_t, cfdata_t , void *);
69 void ne_xsh_attach(device_t, device_t, void *);
70 #ifdef NE_XSH_DEBUG
71 void ne_xsh_debug_mapping(bus_space_tag_t, bus_space_handle_t,
72 bus_space_handle_t);
73 #endif /* NE_XSH_DEBUG */
74
75 struct ne_xsh_softc {
76 struct ne2000_softc sc_ne2000;
77 struct bus_space_tag sc_bst;
78 struct isr sc_isr;
79 };
80
81 CFATTACH_DECL_NEW(ne_xsh, sizeof(struct ne_xsh_softc),
82 ne_xsh_match, ne_xsh_attach, NULL, NULL);
83
84 int
ne_xsh_match(device_t parent,cfdata_t cf,void * aux)85 ne_xsh_match(device_t parent, cfdata_t cf, void *aux)
86 {
87 struct xshbus_attach_args *xap = aux;
88
89 if (strcmp(xap->xaa_name, "ne_xsh") != 0)
90 return 0;
91
92 return 1;
93 }
94
95 void
ne_xsh_attach(device_t parent,device_t self,void * aux)96 ne_xsh_attach(device_t parent, device_t self, void *aux)
97 {
98 struct ne_xsh_softc *zsc = device_private(self);
99 struct ne2000_softc *nsc = &zsc->sc_ne2000;
100 struct dp8390_softc *dsc = &nsc->sc_dp8390;
101
102 struct xshbus_attach_args *xap = aux;
103
104 bus_space_tag_t xsht;
105 bus_space_handle_t nich;
106 bus_space_handle_t asich;
107
108 dsc->sc_dev = self;
109
110 zsc->sc_bst.base = xap->xaa_base;
111 zsc->sc_bst.absm = &amiga_bus_stride_4;
112
113 aprint_normal("\n");
114
115 xsht = &zsc->sc_bst;
116
117 /* Map the NIC and ASIC spaces. */
118 if (bus_space_map(xsht, NE2000_NIC_OFFSET, NE2000_NPORTS, 0, &nich)) {
119 aprint_error_dev(self, "can't map nic i/o space\n");
120 return;
121 }
122 if (bus_space_subregion(xsht, nich, NE2000_ASIC_OFFSET,
123 NE2000_ASIC_NPORTS, &asich)) {
124 aprint_error_dev(self, "can't map asic i/o space\n");
125 return;
126 }
127
128 #ifdef NE_XSH_DEBUG
129 ne_xsh_debug_mapping(xsht, nich, asich);
130 #endif /* NE_XSH_DEBUG */
131
132 dsc->sc_regt = xsht;
133 dsc->sc_regh = nich;
134
135 nsc->sc_asict = xsht;
136 nsc->sc_asich = asich;
137
138 /* This interface is always enabled. */
139 dsc->sc_enabled = 1;
140
141 nsc->sc_type = NE2000_TYPE_AX88796;
142
143 dsc->sc_mediachange = ax88190_mediachange;
144 dsc->sc_mediastatus = ax88190_mediastatus;
145 dsc->init_card = ax88190_init_card;
146 dsc->stop_card = ax88190_stop_card;
147 dsc->sc_media_init = ax88190_media_init;
148 dsc->sc_media_fini = ax88190_media_fini;
149
150 /*
151 * Do generic NE2000 attach. This will read the station address
152 * from the EEPROM.
153 */
154 ne2000_attach(nsc, NULL);
155
156 zsc->sc_isr.isr_intr = dp8390_intr;
157 zsc->sc_isr.isr_arg = dsc;
158 zsc->sc_isr.isr_ipl = 2;
159 add_isr(&zsc->sc_isr);
160 }
161
162 #ifdef NE_XSH_DEBUG
163 void
ne_xsh_debug_mapping(bus_space_tag_t xsht,bus_space_handle_t nich,bus_space_handle_t asich)164 ne_xsh_debug_mapping(bus_space_tag_t xsht, bus_space_handle_t nich,
165 bus_space_handle_t asich)
166 {
167 bus_addr_t va;
168 int i;
169
170 aprint_normal("xsh: NIC mapping: ");
171 for(va = nich, i = 0; i < NE2000_NIC_NPORTS; i++) {
172 aprint_normal("%x:%x ", i, kvtop((void*) (va+i)));
173 }
174 aprint_normal("\n");
175
176 aprint_normal("xsh: ASIC mapping: ");
177 for(va = asich, i = 0; i < NE2000_ASIC_NPORTS; i++) {
178 aprint_normal("%x:%x ", i, kvtop((void*) (va+i)));
179 }
180 aprint_normal("\n");
181 }
182 #endif /* NE_XSH_DEBUG */
183