if_lc_isa.c revision 1.5 
1/*	$NetBSD: if_lc_isa.c,v 1.5 1997/11/17 03:34:24 thorpej Exp $ */
2
3/*-
4 * Copyright (c) 1994, 1995, 1997 Matt Thomas <matt@3am-software.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. The name of the author may not be used to endorse or promote products
13 *    derived from this software withough specific prior written permission
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27/*
28 * DEC EtherWORKS 3 Ethernet Controllers
29 *
30 * Written by Matt Thomas
31 *
32 *   This driver supports the LEMAC (DE203, DE204, and DE205) cards.
33 */
34
35#include "bpfilter.h"
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/mbuf.h>
40#include <sys/socket.h>
41#include <sys/ioctl.h>
42#include <sys/errno.h>
43#include <sys/syslog.h>
44#include <sys/select.h>
45#include <sys/device.h>
46#include <sys/queue.h>
47
48#include <net/if.h>
49#include <net/if_dl.h>
50#include <net/if_ether.h>
51#include <net/if_media.h>
52
53
54#ifdef INET
55#include <netinet/in.h>
56#include <netinet/in_systm.h>
57#include <netinet/in_var.h>
58#include <netinet/ip.h>
59#include <netinet/if_inarp.h>
60#endif
61
62#ifdef NS
63#include <netns/ns.h>
64#include <netns/ns_if.h>
65#endif
66
67#if NBPFILTER > 0
68#include <net/bpf.h>
69#include <net/bpfdesc.h>
70#endif
71
72#include <machine/cpu.h>
73#include <machine/bus.h>
74#include <machine/intr.h>
75
76#include <dev/ic/lemacreg.h>
77#include <dev/ic/lemacvar.h>
78
79#include <dev/isa/isavar.h>
80
81extern struct cfdriver lc_cd;
82
83static int
84lemac_isa_probe(
85    struct device *parent,
86#ifdef __BROKEN_INDIRECT_CONFIG
87    void *match,
88#else
89    struct cfdata *match,
90#endif
91    void *aux)
92{
93    struct isa_attach_args * const ia = aux;
94#ifdef __BROKEN_INDIRECT_CONFIG
95    struct cfdata *cf = ((struct device *)match)->dv_cfdata;
96#else
97    struct cfdata *cf = match;
98#endif
99    int irq, rv = 0;
100    bus_addr_t maddr;
101    bus_addr_t msize;
102    bus_space_handle_t memh;
103    bus_space_handle_t ioh;
104
105    /*
106     * Disallow wildcarded i/o addresses.
107     */
108    if (ia->ia_iobase == IOBASEUNK)
109	return 0;
110
111    /*
112     * Make sure this is a valid LEMAC address.
113     */
114    if (ia->ia_iobase & (LEMAC_IOSIZE - 1))
115	return 0;
116
117    /*
118     * Map the LEMAC's port space for the probe sequence.
119     */
120    if (bus_space_map(ia->ia_iot, ia->ia_iobase, LEMAC_IOSIZE, 0, &ioh))
121	return 0;
122
123    /*
124     * Read the Ethernet address from the EEPROM.
125     * It must start with one of the DEC OUIs and pass the
126     * DEC ethernet checksum test.
127     */
128    if (lemac_port_check(ia->ia_iot, ioh) == 0)
129	goto out;
130
131    /*
132     * Get information about memory space and attempt to map it.
133     */
134    lemac_info_get(ia->ia_iot, ioh, &maddr, &msize, &irq);
135    if (ia->ia_maddr != maddr && ia->ia_maddr != MADDRUNK)
136	goto out;
137    if (bus_space_map(ia->ia_memt, maddr, msize, 0, &memh))
138	goto out;
139    bus_space_unmap(ia->ia_memt, memh, msize);
140
141    /*
142     * Double-check IRQ configuration.
143     */
144    if (ia->ia_irq != irq && ia->ia_irq != IRQUNK)
145	printf("%s%d: overriding IRQ %d to %d\n", lc_cd.cd_name, cf->cf_unit,
146	       ia->ia_irq, irq);
147    ia->ia_irq = irq;
148
149    /*
150     * I guess we've found one.
151     */
152    rv = 1;
153
154 out:
155    bus_space_unmap(ia->ia_iot, ioh, LEMAC_IOSIZE);
156    return rv;
157}
158
159static void
160lemac_isa_attach(
161    struct device *parent,
162    struct device *self,
163    void *aux)
164{
165    lemac_softc_t *sc = (void *)self;
166    struct isa_attach_args *ia = aux;
167
168    /* Map i/o space. */
169    sc->sc_iot = ia->ia_iot;
170    if (bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 0,
171      &sc->sc_ioh)) {
172	printf(": can't map i/o space\n");
173	return;
174    }
175
176    if (ia->ia_msize && ia->ia_maddr) {
177	sc->sc_memt = ia->ia_memt;
178	/* Map memory space. */
179	if (bus_space_map(sc->sc_memt, ia->ia_maddr, ia->ia_msize, 0,
180	  &sc->sc_memh)) {
181	    printf(": can't map mem space\n");
182	    return;
183	}
184    }
185
186    sc->sc_ats = shutdownhook_establish(lemac_shutdown, sc);
187    if (sc->sc_ats == NULL)
188	printf("\n%s: warning: couldn't establish shutdown hook\n",
189	       sc->sc_dv.dv_xname);
190
191    lemac_ifattach(sc);
192
193    sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
194				   IPL_NET, lemac_intr, sc);
195}
196
197struct cfattach lc_isa_ca = {
198    sizeof(lemac_softc_t), lemac_isa_probe, lemac_isa_attach
199};
200