1 /* $NetBSD: depca_isa.c,v 1.16 2012/10/27 17:18:24 chs Exp $ */
2
3 /*-
4 * Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
9 * Simulation Facility, NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /*-
34 * Copyright (c) 1992, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * This code is derived from software contributed to Berkeley by
38 * Ralph Campbell and Rick Macklem.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 * 3. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)if_le.c 8.2 (Berkeley) 11/16/93
65 */
66
67 #include <sys/cdefs.h>
68 __KERNEL_RCSID(0, "$NetBSD: depca_isa.c,v 1.16 2012/10/27 17:18:24 chs Exp $");
69
70 #include "opt_inet.h"
71
72 #include <sys/param.h>
73 #include <sys/systm.h>
74 #include <sys/mbuf.h>
75 #include <sys/syslog.h>
76 #include <sys/socket.h>
77 #include <sys/device.h>
78
79 #include <net/if.h>
80 #include <net/if_ether.h>
81 #include <net/if_media.h>
82
83 #ifdef INET
84 #include <netinet/in.h>
85 #include <netinet/if_inarp.h>
86 #endif
87
88 #include <sys/cpu.h>
89 #include <sys/intr.h>
90 #include <sys/bus.h>
91
92 #include <dev/isa/isareg.h>
93 #include <dev/isa/isavar.h>
94
95 #include <dev/ic/lancereg.h>
96 #include <dev/ic/lancevar.h>
97 #include <dev/ic/am7990reg.h>
98 #include <dev/ic/am7990var.h>
99 #include <dev/ic/depcareg.h>
100 #include <dev/ic/depcavar.h>
101
102 int depca_isa_probe(device_t, cfdata_t, void *);
103 void depca_isa_attach(device_t, device_t, void *);
104
105 struct depca_isa_softc {
106 struct depca_softc sc_depca;
107 isa_chipset_tag_t sc_ic;
108 int sc_irq;
109 };
110
111 CFATTACH_DECL_NEW(depca_isa, sizeof(struct depca_isa_softc),
112 depca_isa_probe, depca_isa_attach, NULL, NULL);
113
114 void *depca_isa_intr_establish(struct depca_softc *, struct lance_softc *);
115
116 int
depca_isa_probe(device_t parent,cfdata_t cf,void * aux)117 depca_isa_probe(device_t parent, cfdata_t cf, void *aux)
118 {
119 struct isa_attach_args *ia = aux;
120 bus_space_tag_t iot = ia->ia_iot;
121 bus_space_handle_t ioh;
122 bus_space_handle_t memh;
123 int rv = 0;
124
125 if (ia->ia_nio < 1)
126 return (0);
127 if (ia->ia_niomem < 1)
128 return (0);
129 if (ia->ia_nirq < 1)
130 return (0);
131
132 if (ISA_DIRECT_CONFIG(ia))
133 return (0);
134
135 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
136 return (0);
137
138 /* Disallow impossible i/o address. */
139 if (ia->ia_io[0].ir_addr != 0x200 && ia->ia_io[0].ir_addr != 0x300)
140 return (0);
141
142 /* Map i/o space. */
143 if (bus_space_map(iot, ia->ia_io[0].ir_addr, 16, 0, &ioh))
144 return 0;
145
146 if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM ||
147 (ia->ia_iomem[0].ir_size != 32 * 1024 &&
148 ia->ia_iomem[0].ir_size != 64 * 1024))
149 goto bad;
150
151 /* Map card RAM. */
152 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr,
153 ia->ia_iomem[0].ir_size, 0, &memh))
154 goto bad;
155
156 /* Just needed to check mapability; don't need it anymore. */
157 bus_space_unmap(ia->ia_memt, memh, ia->ia_iomem[0].ir_size);
158
159 /* Stop the LANCE chip and put it in a known state. */
160 bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0);
161 bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C0_STOP);
162 delay(100);
163
164 bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0);
165 if (bus_space_read_2(iot, ioh, DEPCA_RDP) != LE_C0_STOP)
166 goto bad;
167
168 bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR3);
169 bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C3_ACON);
170
171 bus_space_write_1(iot, ioh, DEPCA_CSR, DEPCA_CSR_DUM);
172
173 if (depca_readprom(iot, ioh, NULL))
174 goto bad;
175
176 ia->ia_nio = 1;
177 ia->ia_io[0].ir_size = 16;
178
179 ia->ia_niomem = 1;
180
181 ia->ia_nirq = 1;
182
183 ia->ia_ndrq = 0;
184
185 rv = 1;
186
187 bad:
188 bus_space_unmap(iot, ioh, 16);
189 return (rv);
190 }
191
192 void
depca_isa_attach(device_t parent,device_t self,void * aux)193 depca_isa_attach(device_t parent, device_t self, void *aux)
194 {
195 struct depca_isa_softc *isc = device_private(self);
196 struct depca_softc *sc = &isc->sc_depca;
197 struct isa_attach_args *ia = aux;
198
199 sc->sc_dev = self;
200 aprint_normal("\n");
201
202 sc->sc_iot = ia->ia_iot;
203 sc->sc_memt = ia->ia_memt;
204
205 sc->sc_memsize = ia->ia_iomem[0].ir_size;
206
207 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 16,
208 0, &sc->sc_ioh) != 0) {
209 aprint_error_dev(self, "unable to map i/o space\n");
210 return;
211 }
212 if (bus_space_map(sc->sc_memt, ia->ia_iomem[0].ir_addr,
213 ia->ia_iomem[0].ir_size, 0, &sc->sc_memh) != 0) {
214 aprint_error_dev(self, "unable to map memory space\n");
215 return;
216 }
217
218 isc->sc_ic = ia->ia_ic;
219 isc->sc_irq = ia->ia_irq[0].ir_irq;
220 sc->sc_intr_establish = depca_isa_intr_establish;
221
222 depca_attach(sc);
223 }
224
225 void *
depca_isa_intr_establish(struct depca_softc * sc,struct lance_softc * child)226 depca_isa_intr_establish(struct depca_softc *sc, struct lance_softc *child)
227 {
228 struct depca_isa_softc *isc = (struct depca_isa_softc *)sc;
229 void *rv;
230
231 rv = isa_intr_establish(isc->sc_ic, isc->sc_irq, IST_EDGE,
232 IPL_NET, depca_intredge, child);
233 if (rv == NULL)
234 printf("%s: unable to establish interrupt\n",
235 device_xname(sc->sc_dev));
236
237 return (rv);
238 }
239