if_le.c revision 1.9 1 /* $NetBSD: if_le.c,v 1.9 1998/01/12 20:52:34 thorpej Exp $ */
2
3 /* #define LE_CHIP_IS_POKEY /* does VS2000 need this ??? */
4
5 /*-
6 * Copyright (c) 1995 Charles M. Hannum. All rights reserved.
7 * Copyright (c) 1992, 1993
8 * The Regents of the University of California. All rights reserved.
9 *
10 * This code is derived from software contributed to Berkeley by
11 * Ralph Campbell and Rick Macklem.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the University of
24 * California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 * may be used to endorse or promote products derived from this software
27 * without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 *
41 * @(#)if_le.c 8.2 (Berkeley) 11/16/93
42 */
43
44 #include "bpfilter.h"
45
46 #include <sys/param.h>
47 #include <sys/syslog.h>
48 #include <sys/socket.h>
49 #include <sys/device.h>
50 #include <sys/reboot.h>
51
52 #include <net/if.h>
53 #include <net/if_ether.h>
54 #include <net/if_media.h>
55
56 #if INET
57 #include <netinet/in.h>
58 #include <netinet/if_inarp.h>
59 #endif
60
61 /*
62 * This would be nice, but it's not yet there...
63 *
64 * #include <machine/autoconf.h>
65 */
66
67 #include <machine/pte.h>
68 #include <machine/cpu.h>
69 #include <machine/mtpr.h>
70 #include <machine/uvax.h>
71 #include <machine/ka410.h>
72 #include <machine/vsbus.h>
73 #include <machine/rpb.h>
74
75 #include <dev/ic/am7990reg.h>
76 #define LE_NEED_BUF_CONTIG
77 #include <dev/ic/am7990var.h>
78
79 #include <dev/tc/if_levar.h>
80
81 #define xdebug(x)
82
83 #ifdef LE_CHIP_IS_POKEY
84 /*
85 * access LANCE registers and double-check their contents
86 */
87 #define wbflush() /* do nothing */
88 void lewritereg();
89 #define LERDWR(cntl, src, dst) { (dst) = (src); wbflush(); }
90 #define LEWREG(src, dst) lewritereg(&(dst), (src))
91 #endif
92
93 #define LE_IOSIZE 64*1024 /* 64K of real-mem are reserved and already */
94 extern void *le_iomem; /* mapped into virt-mem by cpu_steal_pages */
95 extern u_long le_ioaddr; /* le_iomem is virt, le_ioaddr is phys */
96
97 #define LE_SOFTC(unit) le_cd.cd_devs[unit]
98 #define LE_DELAY(x) DELAY(x)
99
100 int lematch __P((struct device *, void *, void *));
101 void leattach __P((struct device *, struct device *, void *));
102
103 int leintr __P((void *sc));
104
105 struct cfattach le_ca = {
106 sizeof(struct le_softc), lematch, leattach
107 };
108
109 extern struct cfdriver le_cd;
110
111 hide void lewrcsr __P ((struct am7990_softc *, u_int16_t, u_int16_t));
112 hide u_int16_t lerdcsr __P ((struct am7990_softc *, u_int16_t));
113
114 hide void
115 lewrcsr(sc, port, val)
116 struct am7990_softc *sc;
117 u_int16_t port, val;
118 {
119 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
120
121 #ifdef LE_CHIP_IS_POKEY
122 LEWREG(port, ler1->ler1_rap);
123 LERDWR(port, val, ler1->ler1_rdp);
124 #else
125 ler1->ler1_rap = port;
126 ler1->ler1_rdp = val;
127 #endif
128 }
129
130 hide u_int16_t
131 lerdcsr(sc, port)
132 struct am7990_softc *sc;
133 u_int16_t port;
134 {
135 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
136 u_int16_t val;
137
138 #ifdef LE_CHIP_IS_POKEY
139 LEWREG(port, ler1->ler1_rap);
140 LERDWR(0, ler1->ler1_rdp, val);
141 #else
142 ler1->ler1_rap = port;
143 val = ler1->ler1_rdp;
144 #endif
145 return (val);
146 }
147
148 integrate void
149 lehwinit(sc)
150 struct am7990_softc *sc;
151 {
152 }
153
154 int
155 lematch(parent, match, aux)
156 struct device *parent;
157 void *match, *aux;
158 {
159 struct cfdata *cf = match;
160 struct confargs *ca = aux;
161
162 /*
163 * There could/should be more checks, but for now...
164 */
165 if (strcmp(ca->ca_name, "le") &&
166 strcmp(ca->ca_name, "am7990") &&
167 strcmp(ca->ca_name, "AM7990"))
168 return (0);
169
170 return (1);
171 }
172
173 /*
174 *
175 */
176 void
177 leattach(parent, self, aux)
178 struct device *parent, *self;
179 void *aux;
180 {
181 register struct le_softc *sc = (void *)self;
182 struct confargs *ca = aux;
183 u_char *cp; /* pointer to MAC address */
184 int i;
185
186 sc->sc_r1 = (void*)uvax_phys2virt(ca->ca_ioaddr);
187
188 sc->sc_am7990.sc_conf3 = 0;
189 sc->sc_am7990.sc_mem = le_iomem;
190 sc->sc_am7990.sc_addr = le_ioaddr;
191 sc->sc_am7990.sc_memsize = LE_IOSIZE;
192 sc->sc_am7990.sc_wrcsr = lewrcsr;
193 sc->sc_am7990.sc_rdcsr = lerdcsr;
194 sc->sc_am7990.sc_hwinit = lehwinit;
195 sc->sc_am7990.sc_nocarrier = NULL;
196
197 xdebug(("leattach: mem=%x, addr=%x, size=%x (%d)\n",
198 sc->sc_am7990.sc_mem, sc->sc_am7990.sc_addr,
199 sc->sc_am7990.sc_memsize, sc->sc_am7990.sc_memsize));
200
201 sc->sc_am7990.sc_copytodesc = am7990_copytobuf_contig;
202 sc->sc_am7990.sc_copyfromdesc = am7990_copyfrombuf_contig;
203 sc->sc_am7990.sc_copytobuf = am7990_copytobuf_contig;
204 sc->sc_am7990.sc_copyfrombuf = am7990_copyfrombuf_contig;
205 sc->sc_am7990.sc_zerobuf = am7990_zerobuf_contig;
206
207 /*
208 * Get the ethernet address out of rom
209 */
210 for (i = 0; i < sizeof(sc->sc_am7990.sc_enaddr); i++) {
211 int *eaddr = (void*)uvax_phys2virt(ca->ca_enaddr);
212 sc->sc_am7990.sc_enaddr[i] = (u_char)eaddr[i];
213 }
214
215 bcopy(self->dv_xname, sc->sc_am7990.sc_ethercom.ec_if.if_xname,
216 IFNAMSIZ);
217 am7990_config(&sc->sc_am7990);
218
219 #ifdef LEDEBUG
220 sc->sc_am7990.sc_debug = LEDEBUG;
221 #endif
222
223 vsbus_intr_register(ca, am7990_intr, &sc->sc_am7990);
224 vsbus_intr_enable(ca);
225
226 /*
227 * Register this device as boot device if we booted from it.
228 * This will fail if there are more than one le in a machine,
229 * fortunately there may be only one.
230 */
231 if (B_TYPE(bootdev) == BDEV_LE)
232 booted_from = self;
233 }
234
235 #ifdef LE_CHIP_IS_POKEY
236 /*
237 * Write a lance register port, reading it back to ensure success. This seems
238 * to be necessary during initialization, since the chip appears to be a bit
239 * pokey sometimes.
240 */
241 void
242 lewritereg(regptr, val)
243 register volatile u_short *regptr;
244 register u_short val;
245 {
246 register int i = 0;
247
248 while (*regptr != val) {
249 *regptr = val;
250 wbflush();
251 if (++i > 10000) {
252 printf("le: Reg did not settle (to x%x): x%x\n", val,
253 *regptr);
254 return;
255 }
256 DELAY(100);
257 }
258 }
259 #endif
260