1 /* $NetBSD: if_sm_isa.c,v 1.12 2002/10/02 03:10:48 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * 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 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 #include <sys/cdefs.h>
41 __KERNEL_RCSID(0, "$NetBSD: if_sm_isa.c,v 1.12 2002/10/02 03:10:48 thorpej Exp $");
42
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/mbuf.h>
46 #include <sys/socket.h>
47 #include <sys/ioctl.h>
48 #include <sys/errno.h>
49 #include <sys/syslog.h>
50 #include <sys/select.h>
51 #include <sys/device.h>
52
53 #include <net/if.h>
54 #include <net/if_dl.h>
55 #include <net/if_ether.h>
56 #include <net/if_media.h>
57
58 #include <machine/intr.h>
59 #include <machine/bus.h>
60
61 #include <dev/mii/mii.h>
62 #include <dev/mii/miivar.h>
63
64 #include <dev/ic/smc91cxxreg.h>
65 #include <dev/ic/smc91cxxvar.h>
66
67 #include <dev/isa/isavar.h>
68
69 int sm_isa_match __P((struct device *, struct cfdata *, void *));
70 void sm_isa_attach __P((struct device *, struct device *, void *));
71
72 struct sm_isa_softc {
73 struct smc91cxx_softc sc_smc; /* real "smc" softc */
74
75 /* ISA-specific goo. */
76 void *sc_ih; /* interrupt cookie */
77 };
78
79 CFATTACH_DECL(sm_isa, sizeof(struct sm_isa_softc),
80 sm_isa_match, sm_isa_attach, NULL, NULL);
81
82 int
83 sm_isa_match(parent, match, aux)
84 struct device *parent;
85 struct cfdata *match;
86 void *aux;
87 {
88 struct isa_attach_args *ia = aux;
89 bus_space_tag_t iot = ia->ia_iot;
90 bus_space_handle_t ioh;
91 u_int16_t tmp;
92 int rv = 0;
93 extern const char *smc91cxx_idstrs[];
94
95 if (ia->ia_nio < 1)
96 return (0);
97 if (ia->ia_nirq < 1)
98 return (0);
99
100 if (ISA_DIRECT_CONFIG(ia))
101 return (0);
102
103 /* Disallow wildcarded values. */
104 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT)
105 return (0);
106 if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT)
107 return (0);
108
109 /* Map i/o space. */
110 if (bus_space_map(iot, ia->ia_io[0].ir_addr, SMC_IOSIZE, 0, &ioh))
111 return (0);
112
113 /* Check that high byte of BANK_SELECT is what we expect. */
114 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
115 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
116 goto out;
117
118 /*
119 * Switch to bank 0 and perform the test again.
120 * XXX INVASIVE!
121 */
122 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0);
123 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
124 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
125 goto out;
126
127 /*
128 * Switch to bank 1 and check the base address register.
129 * XXX INVASIVE!
130 */
131 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 1);
132 tmp = bus_space_read_2(iot, ioh, BASE_ADDR_REG_W);
133 if (ia->ia_io[0].ir_addr != ((tmp >> 3) & 0x3e0))
134 goto out;
135
136 /*
137 * Check for a recognized chip id.
138 * XXX INVASIVE!
139 */
140 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3);
141 tmp = bus_space_read_2(iot, ioh, REVISION_REG_W);
142 if (smc91cxx_idstrs[RR_ID(tmp)] == NULL)
143 goto out;
144
145 /*
146 * Assume we have an SMC91Cxx.
147 */
148 ia->ia_nio = 1;
149 ia->ia_io[0].ir_size = SMC_IOSIZE;
150
151 ia->ia_nirq = 1;
152
153 ia->ia_niomem = 0;
154 ia->ia_ndrq = 0;
155
156 rv = 1;
157
158 out:
159 bus_space_unmap(iot, ioh, SMC_IOSIZE);
160 return (rv);
161 }
162
163 void
164 sm_isa_attach(parent, self, aux)
165 struct device *parent, *self;
166 void *aux;
167 {
168 struct sm_isa_softc *isc = (struct sm_isa_softc *)self;
169 struct smc91cxx_softc *sc = &isc->sc_smc;
170 struct isa_attach_args *ia = aux;
171 bus_space_tag_t iot = ia->ia_iot;
172 bus_space_handle_t ioh;
173
174 printf("\n");
175
176 /* Map i/o space. */
177 if (bus_space_map(iot, ia->ia_io[0].ir_addr, SMC_IOSIZE, 0, &ioh))
178 panic("sm_isa_attach: can't map i/o space");
179
180 sc->sc_bst = iot;
181 sc->sc_bsh = ioh;
182
183 /* should always be enabled */
184 sc->sc_flags |= SMC_FLAGS_ENABLED;
185
186 /* XXX Should get Ethernet address from EEPROM!! */
187
188 /* Perform generic intialization. */
189 smc91cxx_attach(sc, NULL);
190
191 /* Establish the interrupt handler. */
192 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
193 IST_EDGE, IPL_NET, smc91cxx_intr, sc);
194 if (isc->sc_ih == NULL)
195 printf("%s: couldn't establish interrupt handler\n",
196 sc->sc_dev.dv_xname);
197 }
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