1 /* $OpenBSD: if_sm_isa.c,v 1.17 2023/09/11 08:41:26 mvs Exp $ */
2 /* $NetBSD: if_sm_isa.c,v 1.4 1998/07/05 06:49:14 jonathan Exp $ */
3
4 /*-
5 * Copyright (c) 1997 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
10 * NASA Ames Research Center.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include "bpfilter.h"
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/mbuf.h>
39 #include <sys/socket.h>
40 #include <sys/ioctl.h>
41 #include <sys/errno.h>
42 #include <sys/syslog.h>
43 #include <sys/timeout.h>
44 #include <sys/device.h>
45
46 #include <net/if.h>
47 #include <net/if_media.h>
48
49 #include <netinet/in.h>
50 #include <netinet/if_ether.h>
51
52 #if NBPFILTER > 0
53 #include <net/bpf.h>
54 #endif
55
56 #include <machine/intr.h>
57 #include <machine/bus.h>
58
59 #include <dev/mii/mii.h>
60 #include <dev/mii/miivar.h>
61
62 #include <dev/ic/smc91cxxreg.h>
63 #include <dev/ic/smc91cxxvar.h>
64
65 #include <dev/isa/isavar.h>
66
67 int sm_isa_match(struct device *, void *, void *);
68 void sm_isa_attach(struct device *, struct device *, void *);
69
70 struct sm_isa_softc {
71 struct smc91cxx_softc sc_smc; /* real "smc" softc */
72
73 /* ISA-specific goo. */
74 void *sc_ih; /* interrupt cookie */
75 };
76
77 const struct cfattach sm_isa_ca = {
78 sizeof(struct sm_isa_softc), sm_isa_match, sm_isa_attach
79 };
80
81 int
sm_isa_match(struct device * parent,void * match,void * aux)82 sm_isa_match(struct device *parent, void *match, void *aux)
83 {
84 struct isa_attach_args *ia = aux;
85 bus_space_tag_t iot = ia->ia_iot;
86 bus_space_handle_t ioh;
87 u_int16_t tmp;
88 int rv = 0;
89 extern const char *smc91cxx_idstrs[];
90
91 /* Disallow wildcarded values. */
92 if (ia->ia_irq == -1)
93 return (0);
94 if (ia->ia_iobase == -1)
95 return (0);
96
97 /* Map i/o space. */
98 if (bus_space_map(iot, ia->ia_iobase, SMC_IOSIZE, 0, &ioh))
99 return (0);
100
101 /* Check that high byte of BANK_SELECT is what we expect. */
102 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
103 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
104 goto out;
105
106 /*
107 * Switch to bank 0 and perform the test again.
108 * XXX INVASIVE!
109 */
110 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0);
111 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
112 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
113 goto out;
114
115 /*
116 * Switch to bank 1 and check the base address register.
117 * XXX INVASIVE!
118 */
119 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 1);
120 tmp = bus_space_read_2(iot, ioh, BASE_ADDR_REG_W);
121 if (ia->ia_iobase != ((tmp >> 3) & 0x3e0))
122 goto out;
123
124 /*
125 * Check for a recognized chip id.
126 * XXX INVASIVE!
127 */
128 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3);
129 tmp = bus_space_read_2(iot, ioh, REVISION_REG_W);
130 if (smc91cxx_idstrs[RR_ID(tmp)] == NULL)
131 goto out;
132
133 /*
134 * Assume we have an SMC91Cxx.
135 */
136 ia->ia_iosize = SMC_IOSIZE;
137 rv = 1;
138
139 out:
140 bus_space_unmap(iot, ioh, SMC_IOSIZE);
141 return (rv);
142 }
143
144 void
sm_isa_attach(struct device * parent,struct device * self,void * aux)145 sm_isa_attach(struct device *parent, struct device *self, void *aux)
146 {
147 struct sm_isa_softc *isc = (struct sm_isa_softc *)self;
148 struct smc91cxx_softc *sc = &isc->sc_smc;
149 struct isa_attach_args *ia = aux;
150 bus_space_tag_t iot = ia->ia_iot;
151 bus_space_handle_t ioh;
152
153 printf("\n");
154
155 /* Map i/o space. */
156 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh))
157 panic("sm_isa_attach: can't map i/o space");
158
159 sc->sc_bst = iot;
160 sc->sc_bsh = ioh;
161
162 /* should always be enabled */
163 sc->sc_enabled = 1;
164
165 /* XXX Should get Ethernet address from EEPROM!! */
166
167 /* Perform generic initialization. */
168 smc91cxx_attach(sc, NULL);
169
170 /* Establish the interrupt handler. */
171 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
172 IPL_NET, smc91cxx_intr, sc, sc->sc_dev.dv_xname);
173 if (isc->sc_ih == NULL)
174 printf("%s: couldn't establish interrupt handler\n",
175 sc->sc_dev.dv_xname);
176 }
177