if_le.c revision 1.3.6.2 1 /* $NetBSD: if_le.c,v 1.3.6.2 1997/03/06 13:26:28 is Exp $ */
2
3 #define LEDEBUG 1 /* debug-level: 0 or 1 */
4 /* #define LE_CHIP_IS_POKEY /* does VS2000 need this ??? */
5
6 /*-
7 * Copyright (c) 1995 Charles M. Hannum. All rights reserved.
8 * Copyright (c) 1992, 1993
9 * The Regents of the University of California. All rights reserved.
10 *
11 * This code is derived from software contributed to Berkeley by
12 * Ralph Campbell and Rick Macklem.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 * 3. All advertising materials mentioning features or use of this software
23 * must display the following acknowledgement:
24 * This product includes software developed by the University of
25 * California, Berkeley and its contributors.
26 * 4. Neither the name of the University nor the names of its contributors
27 * may be used to endorse or promote products derived from this software
28 * without specific prior written permission.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * SUCH DAMAGE.
41 *
42 * @(#)if_le.c 8.2 (Berkeley) 11/16/93
43 */
44
45 #include "bpfilter.h"
46
47 #include <sys/param.h>
48 #include <sys/syslog.h>
49 #include <sys/socket.h>
50 #include <sys/device.h>
51
52 #include <net/if.h>
53 #include <net/if_ether.h>
54
55 #if INET
56 #include <netinet/in.h>
57 #include <netinet/if_ether.h>
58 #endif
59
60 /*
61 * This would be nice, but it's not yet there...
62 *
63 * #include <machine/autoconf.h>
64 */
65
66 #include <machine/pte.h>
67 #include <machine/cpu.h>
68 #include <machine/mtpr.h>
69 #include <machine/uvax.h>
70 #include <machine/ka410.h>
71 #include <machine/vsbus.h>
72
73 #include <dev/ic/am7990reg.h>
74 #define LE_NEED_BUF_CONTIG
75 #include <dev/ic/am7990var.h>
76
77 #include <dev/tc/if_levar.h>
78
79 #define xdebug(x)
80
81 #ifdef LE_CHIP_IS_POKEY
82 /*
83 * access LANCE registers and double-check their contents
84 */
85 #define wbflush() /* do nothing */
86 void lewritereg();
87 #define LERDWR(cntl, src, dst) { (dst) = (src); wbflush(); }
88 #define LEWREG(src, dst) lewritereg(&(dst), (src))
89 #endif
90
91 #define LE_IOSIZE 64*1024 /* 64K of real-mem are reserved and already */
92 extern void *le_iomem; /* mapped into virt-mem by cpu_steal_pages */
93 extern u_long le_ioaddr; /* le_iomem is virt, le_ioaddr is phys */
94
95 #define LE_SOFTC(unit) le_cd.cd_devs[unit]
96 #define LE_DELAY(x) DELAY(x)
97
98 int lematch __P((struct device *, void *, void *));
99 void leattach __P((struct device *, struct device *, void *));
100
101 int leintr __P((void *sc));
102
103 struct cfattach le_ca = {
104 sizeof(struct le_softc), lematch, leattach
105 };
106
107 hide void lewrcsr __P ((struct am7990_softc *, u_int16_t, u_int16_t));
108 hide u_int16_t lerdcsr __P ((struct am7990_softc *, u_int16_t));
109
110 hide void
111 lewrcsr(sc, port, val)
112 struct am7990_softc *sc;
113 u_int16_t port, val;
114 {
115 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
116
117 #ifdef LE_CHIP_IS_POKEY
118 LEWREG(port, ler1->ler1_rap);
119 LERDWR(port, val, ler1->ler1_rdp);
120 #else
121 ler1->ler1_rap = port;
122 ler1->ler1_rdp = val;
123 #endif
124 }
125
126 hide u_int16_t
127 lerdcsr(sc, port)
128 struct am7990_softc *sc;
129 u_int16_t port;
130 {
131 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
132 u_int16_t val;
133
134 #ifdef LE_CHIP_IS_POKEY
135 LEWREG(port, ler1->ler1_rap);
136 LERDWR(0, ler1->ler1_rdp, val);
137 #else
138 ler1->ler1_rap = port;
139 val = ler1->ler1_rdp;
140 #endif
141 return (val);
142 }
143
144 integrate void
145 lehwinit(sc)
146 struct am7990_softc *sc;
147 {
148 }
149
150 int
151 lematch(parent, match, aux)
152 struct device *parent;
153 void *match, *aux;
154 {
155 struct cfdata *cf = match;
156 struct confargs *ca = aux;
157
158 /*
159 * There could/should be more checks, but for now...
160 */
161 if (strcmp(ca->ca_name, "le") &&
162 strcmp(ca->ca_name, "am7990") &&
163 strcmp(ca->ca_name, "AM7990"))
164 return (0);
165
166 return (1);
167 }
168
169 /*
170 *
171 */
172 void
173 leattach(parent, self, aux)
174 struct device *parent, *self;
175 void *aux;
176 {
177 register struct le_softc *sc = (void *)self;
178 struct confargs *ca = aux;
179 u_char *cp; /* pointer to MAC address */
180 int i;
181
182 sc->sc_r1 = (void*)uvax_phys2virt(ca->ca_ioaddr);
183
184 sc->sc_am7990.sc_conf3 = 0;
185 sc->sc_am7990.sc_mem = le_iomem;
186 sc->sc_am7990.sc_addr = le_ioaddr;
187 sc->sc_am7990.sc_memsize = LE_IOSIZE;
188 sc->sc_am7990.sc_wrcsr = lewrcsr;
189 sc->sc_am7990.sc_rdcsr = lerdcsr;
190 sc->sc_am7990.sc_hwinit = lehwinit;
191 sc->sc_am7990.sc_nocarrier = NULL;
192
193 xdebug(("leattach: mem=%x, addr=%x, size=%x (%d)\n",
194 sc->sc_am7990.sc_mem, sc->sc_am7990.sc_addr,
195 sc->sc_am7990.sc_memsize, sc->sc_am7990.sc_memsize));
196
197 sc->sc_am7990.sc_copytodesc = am7990_copytobuf_contig;
198 sc->sc_am7990.sc_copyfromdesc = am7990_copyfrombuf_contig;
199 sc->sc_am7990.sc_copytobuf = am7990_copytobuf_contig;
200 sc->sc_am7990.sc_copyfrombuf = am7990_copyfrombuf_contig;
201 sc->sc_am7990.sc_zerobuf = am7990_zerobuf_contig;
202
203 /*
204 * Get the ethernet address out of rom
205 */
206 for (i = 0; i < sizeof(sc->sc_am7990.sc_enaddr); i++) {
207 int *eaddr = (void*)uvax_phys2virt(ca->ca_enaddr);
208 sc->sc_am7990.sc_enaddr[i] = (u_char)eaddr[i];
209 }
210
211 bcopy(self->dv_xname, sc->sc_am7990.sc_ethercom.ec_if.if_xname,
212 IFNAMSIZ);
213 am7990_config(&sc->sc_am7990);
214
215 #ifdef LEDEBUG
216 sc->sc_am7990.sc_debug = LEDEBUG;
217 #endif
218
219 vsbus_intr_register(ca, am7990_intr, &sc->sc_am7990);
220 vsbus_intr_enable(ca);
221 }
222
223 #ifdef LE_CHIP_IS_POKEY
224 /*
225 * Write a lance register port, reading it back to ensure success. This seems
226 * to be necessary during initialization, since the chip appears to be a bit
227 * pokey sometimes.
228 */
229 void
230 lewritereg(regptr, val)
231 register volatile u_short *regptr;
232 register u_short val;
233 {
234 register int i = 0;
235
236 while (*regptr != val) {
237 *regptr = val;
238 wbflush();
239 if (++i > 10000) {
240 printf("le: Reg did not settle (to x%x): x%x\n", val,
241 *regptr);
242 return;
243 }
244 DELAY(100);
245 }
246 }
247 #endif
248