xref: /openbsd-src/sys/dev/isa/if_ne_isa.c (revision ffccd32ba7f20be5cea89dc95473805a70af3b9d)
1 /*	$OpenBSD: if_ne_isa.c,v 1.19 2023/09/11 08:41:26 mvs Exp $	*/
2 /*	$NetBSD: if_ne_isa.c,v 1.6 1998/07/05 06:49:13 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/device.h>
44 
45 #include <net/if.h>
46 #include <net/if_media.h>
47 
48 #include <netinet/in.h>
49 #include <netinet/if_ether.h>
50 
51 #if NBPFILTER > 0
52 #include <net/bpf.h>
53 #endif
54 
55 #include <machine/intr.h>
56 #include <machine/bus.h>
57 
58 #include <dev/ic/dp8390reg.h>
59 #include <dev/ic/dp8390var.h>
60 
61 #include <dev/ic/ne2000reg.h>
62 #include <dev/ic/ne2000var.h>
63 
64 #include <dev/ic/rtl80x9reg.h>
65 #include <dev/ic/rtl80x9var.h>
66 
67 #include <dev/isa/isavar.h>
68 
69 int	ne_isa_match(struct device *, void *, void *);
70 void	ne_isa_attach(struct device *, struct device *, void *);
71 
72 struct ne_isa_softc {
73 	struct	ne2000_softc sc_ne2000;		/* real "ne2000" softc */
74 
75 	/* ISA-specific goo. */
76 	void	*sc_ih;				/* interrupt cookie */
77 };
78 
79 const struct cfattach ne_isa_ca = {
80 	sizeof(struct ne_isa_softc), ne_isa_match, ne_isa_attach
81 };
82 
83 int
ne_isa_match(struct device * parent,void * match,void * aux)84 ne_isa_match(struct device *parent, void *match, void *aux)
85 {
86 	struct ne_isa_softc *isc = match;
87 	struct ne2000_softc *nsc = &isc->sc_ne2000;
88 	struct dp8390_softc *dsc = &nsc->sc_dp8390;
89 	struct isa_attach_args *ia = aux;
90 	bus_space_tag_t nict = ia->ia_iot;
91 	bus_space_handle_t nich;
92 	bus_space_tag_t asict;
93 	bus_space_handle_t asich;
94 
95 	/* Disallow wildcarded values. */
96 	if (ia->ia_irq ==  -1 /* ISACF_IRQ_DEFAULT */)
97 		return (0);
98 	if (ia->ia_iobase == -1 /* ISACF_PORT_DEFAULT */)
99 		return (0);
100 
101 	/* Make sure this is a valid NE[12]000 i/o address. */
102 	if ((ia->ia_iobase & 0x1f) != 0)
103 		return (0);
104 
105 	/* Map i/o space. */
106 	if (bus_space_map(nict, ia->ia_iobase, NE2000_NPORTS, 0, &nich))
107 		return (0);
108 
109 	asict = nict;
110 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
111 	    NE2000_ASIC_NPORTS, &asich))
112 		goto out;
113 
114 	dsc->sc_regt = nict;
115 	dsc->sc_regh = nich;
116 
117 	nsc->sc_asict = asict;
118 	nsc->sc_asich = asich;
119 
120 	/* Look for an NE2000-compatible card. */
121 	nsc->sc_type = ne2000_detect(nsc);
122 
123 	if (nsc->sc_type)
124 		ia->ia_iosize = NE2000_NPORTS;
125 
126  out:
127 	bus_space_unmap(nict, nich, NE2000_NPORTS);
128 	return (nsc->sc_type);
129 }
130 
131 void
ne_isa_attach(struct device * parent,struct device * self,void * aux)132 ne_isa_attach(struct device *parent, struct device *self, void *aux)
133 {
134 	struct ne_isa_softc *isc = (struct ne_isa_softc *)self;
135 	struct ne2000_softc *nsc = &isc->sc_ne2000;
136 	struct dp8390_softc *dsc = &nsc->sc_dp8390;
137 	struct isa_attach_args *ia = aux;
138 	bus_space_tag_t nict = ia->ia_iot;
139 	bus_space_handle_t nich;
140 	bus_space_tag_t asict = nict;
141 	bus_space_handle_t asich;
142 	const char *typestr;
143 
144 	/* Map i/o space. */
145 	if (bus_space_map(nict, ia->ia_iobase, NE2000_NPORTS, 0, &nich)) {
146 		printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname);
147 		return;
148 	}
149 
150 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
151 	    NE2000_ASIC_NPORTS, &asich)) {
152 		printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname);
153 		return;
154 	}
155 
156 	dsc->sc_regt = nict;
157 	dsc->sc_regh = nich;
158 
159 	nsc->sc_asict = asict;
160 	nsc->sc_asich = asich;
161 
162 	switch (nsc->sc_type) {
163 	case NE2000_TYPE_NE1000:
164 		typestr = "NE1000";
165 		break;
166 
167 	case NE2000_TYPE_NE2000:
168 		typestr = "NE2000";
169 		/*
170 		 * Check for a Realtek 8019.
171 		 */
172 		bus_space_write_1(nict, nich, ED_P0_CR,
173 		    ED_CR_PAGE_0 | ED_CR_STP);
174 		if (bus_space_read_1(nict, nich, NERTL_RTL0_8019ID0) ==
175 								RTL0_8019ID0 &&
176 		    bus_space_read_1(nict, nich, NERTL_RTL0_8019ID1) ==
177 								RTL0_8019ID1) {
178 			typestr = "NE2000 (RTL8019)";
179 			dsc->sc_mediachange = rtl80x9_mediachange;
180 			dsc->sc_mediastatus = rtl80x9_mediastatus;
181 			dsc->init_card = rtl80x9_init_card;
182 			dsc->sc_media_init = rtl80x9_media_init;
183 		}
184 		break;
185 
186 	default:
187 		printf(": where did the card go?!\n");
188 		return;
189 	}
190 
191 	printf(", %s", typestr);
192 
193 	/* This interface is always enabled. */
194 	dsc->sc_enabled = 1;
195 
196 	/*
197 	 * Do generic NE2000 attach.  This will read the station address
198 	 * from the EEPROM.
199 	 */
200 	ne2000_attach(nsc, NULL);
201 
202 	/* Establish the interrupt handler. */
203 	isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
204 	    IPL_NET, dp8390_intr, dsc, dsc->sc_dev.dv_xname);
205 	if (isc->sc_ih == NULL)
206 		printf(": couldn't establish interrupt handler\n");
207 }
208