if_le.c revision 1.5 1 1.5 pk /* $NetBSD: if_le.c,v 1.5 1998/08/28 20:01:08 pk Exp $ */
2 1.1 pk
3 1.1 pk /*-
4 1.4 mycroft * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5 1.1 pk * All rights reserved.
6 1.1 pk *
7 1.1 pk * This code is derived from software contributed to The NetBSD Foundation
8 1.4 mycroft * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
9 1.4 mycroft * Simulation Facility, NASA Ames Research Center.
10 1.1 pk *
11 1.1 pk * Redistribution and use in source and binary forms, with or without
12 1.1 pk * modification, are permitted provided that the following conditions
13 1.1 pk * are met:
14 1.1 pk * 1. Redistributions of source code must retain the above copyright
15 1.1 pk * notice, this list of conditions and the following disclaimer.
16 1.1 pk * 2. Redistributions in binary form must reproduce the above copyright
17 1.1 pk * notice, this list of conditions and the following disclaimer in the
18 1.1 pk * documentation and/or other materials provided with the distribution.
19 1.1 pk * 3. All advertising materials mentioning features or use of this software
20 1.1 pk * must display the following acknowledgement:
21 1.1 pk * This product includes software developed by the NetBSD
22 1.1 pk * Foundation, Inc. and its contributors.
23 1.1 pk * 4. Neither the name of The NetBSD Foundation nor the names of its
24 1.1 pk * contributors may be used to endorse or promote products derived
25 1.1 pk * from this software without specific prior written permission.
26 1.1 pk *
27 1.1 pk * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 1.1 pk * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 1.1 pk * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 1.1 pk * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 1.1 pk * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 1.1 pk * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 1.1 pk * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 1.1 pk * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 1.1 pk * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 1.1 pk * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 1.1 pk * POSSIBILITY OF SUCH DAMAGE.
38 1.1 pk */
39 1.1 pk
40 1.1 pk /*-
41 1.1 pk * Copyright (c) 1996
42 1.1 pk * The President and Fellows of Harvard College. All rights reserved.
43 1.1 pk * Copyright (c) 1992, 1993
44 1.1 pk * The Regents of the University of California. All rights reserved.
45 1.1 pk *
46 1.1 pk * This code is derived from software contributed to Berkeley by
47 1.1 pk * Ralph Campbell and Rick Macklem.
48 1.1 pk *
49 1.1 pk * Redistribution and use in source and binary forms, with or without
50 1.1 pk * modification, are permitted provided that the following conditions
51 1.1 pk * are met:
52 1.1 pk * 1. Redistributions of source code must retain the above copyright
53 1.1 pk * notice, this list of conditions and the following disclaimer.
54 1.1 pk * 2. Redistributions in binary form must reproduce the above copyright
55 1.1 pk * notice, this list of conditions and the following disclaimer in the
56 1.1 pk * documentation and/or other materials provided with the distribution.
57 1.1 pk * 3. All advertising materials mentioning features or use of this software
58 1.1 pk * must display the following acknowledgement:
59 1.1 pk * This product includes software developed by Aaron Brown and
60 1.1 pk * Harvard University.
61 1.1 pk * This product includes software developed by the University of
62 1.1 pk * California, Berkeley and its contributors.
63 1.1 pk * 4. Neither the name of the University nor the names of its contributors
64 1.1 pk * may be used to endorse or promote products derived from this software
65 1.1 pk * without specific prior written permission.
66 1.1 pk *
67 1.1 pk * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
68 1.1 pk * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
69 1.1 pk * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
70 1.1 pk * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
71 1.1 pk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
72 1.1 pk * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
73 1.1 pk * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
74 1.1 pk * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
75 1.1 pk * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
76 1.1 pk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
77 1.1 pk * SUCH DAMAGE.
78 1.1 pk *
79 1.1 pk * @(#)if_le.c 8.2 (Berkeley) 11/16/93
80 1.1 pk */
81 1.1 pk
82 1.1 pk #include "opt_inet.h"
83 1.1 pk #include "bpfilter.h"
84 1.1 pk
85 1.1 pk #include <sys/param.h>
86 1.1 pk #include <sys/systm.h>
87 1.1 pk #include <sys/mbuf.h>
88 1.1 pk #include <sys/syslog.h>
89 1.1 pk #include <sys/socket.h>
90 1.1 pk #include <sys/device.h>
91 1.1 pk #include <sys/malloc.h>
92 1.1 pk
93 1.1 pk #include <net/if.h>
94 1.1 pk #include <net/if_ether.h>
95 1.1 pk #include <net/if_media.h>
96 1.1 pk
97 1.1 pk #ifdef INET
98 1.1 pk #include <netinet/in.h>
99 1.1 pk #include <netinet/if_inarp.h>
100 1.1 pk #endif
101 1.1 pk
102 1.1 pk #include <machine/autoconf.h>
103 1.1 pk #include <machine/cpu.h>
104 1.1 pk
105 1.1 pk #include <dev/sbus/sbusvar.h>
106 1.1 pk #include <dev/sbus/lebuffervar.h> /*XXX*/
107 1.1 pk
108 1.1 pk #include <dev/ic/lancereg.h>
109 1.1 pk #include <dev/ic/lancevar.h>
110 1.1 pk #include <dev/ic/am7990reg.h>
111 1.1 pk #include <dev/ic/am7990var.h>
112 1.1 pk
113 1.1 pk /*
114 1.1 pk * LANCE registers.
115 1.1 pk */
116 1.1 pk struct lereg1 {
117 1.1 pk volatile u_int16_t ler1_rdp; /* data port */
118 1.1 pk volatile u_int16_t ler1_rap; /* register select port */
119 1.1 pk };
120 1.1 pk
121 1.1 pk struct le_softc {
122 1.1 pk struct am7990_softc sc_am7990; /* glue to MI code */
123 1.1 pk struct sbusdev sc_sd; /* sbus device */
124 1.1 pk bus_space_tag_t sc_bustag;
125 1.1 pk bus_dma_tag_t sc_dmatag;
126 1.1 pk struct lereg1 *sc_r1; /* LANCE registers */
127 1.1 pk };
128 1.1 pk
129 1.1 pk #define MEMSIZE 0x4000 /* LANCE memory size */
130 1.1 pk
131 1.1 pk int lematch_sbus __P((struct device *, struct cfdata *, void *));
132 1.1 pk void leattach_sbus __P((struct device *, struct device *, void *));
133 1.1 pk
134 1.1 pk /*
135 1.1 pk * Media types supported.
136 1.1 pk */
137 1.1 pk static int lemedia[] = {
138 1.2 pk IFM_ETHER|IFM_10_5,
139 1.1 pk };
140 1.1 pk #define NLEMEDIA (sizeof(lemedia) / sizeof(lemedia[0]))
141 1.1 pk
142 1.1 pk
143 1.1 pk struct cfattach le_sbus_ca = {
144 1.1 pk sizeof(struct le_softc), lematch_sbus, leattach_sbus
145 1.1 pk };
146 1.1 pk
147 1.1 pk extern struct cfdriver le_cd;
148 1.1 pk
149 1.1 pk #if defined(_KERNEL) && !defined(_LKM)
150 1.1 pk #include "opt_ddb.h"
151 1.1 pk #endif
152 1.1 pk
153 1.1 pk #ifdef DDB
154 1.1 pk #define integrate
155 1.1 pk #define hide
156 1.1 pk #else
157 1.1 pk #define integrate static __inline
158 1.1 pk #define hide static
159 1.1 pk #endif
160 1.1 pk
161 1.1 pk static void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
162 1.1 pk static u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
163 1.1 pk
164 1.1 pk static void
165 1.1 pk lewrcsr(sc, port, val)
166 1.1 pk struct lance_softc *sc;
167 1.1 pk u_int16_t port, val;
168 1.1 pk {
169 1.1 pk struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
170 1.1 pk
171 1.1 pk ler1->ler1_rap = port;
172 1.1 pk ler1->ler1_rdp = val;
173 1.1 pk
174 1.1 pk #if defined(SUN4M)
175 1.1 pk /*
176 1.1 pk * We need to flush the Sbus->Mbus write buffers. This can most
177 1.1 pk * easily be accomplished by reading back the register that we
178 1.1 pk * just wrote (thanks to Chris Torek for this solution).
179 1.1 pk */
180 1.1 pk if (CPU_ISSUN4M) {
181 1.1 pk volatile u_int16_t discard;
182 1.1 pk discard = ler1->ler1_rdp;
183 1.1 pk }
184 1.1 pk #endif
185 1.1 pk }
186 1.1 pk
187 1.1 pk static u_int16_t
188 1.1 pk lerdcsr(sc, port)
189 1.1 pk struct lance_softc *sc;
190 1.1 pk u_int16_t port;
191 1.1 pk {
192 1.1 pk struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
193 1.1 pk u_int16_t val;
194 1.1 pk
195 1.1 pk ler1->ler1_rap = port;
196 1.1 pk val = ler1->ler1_rdp;
197 1.1 pk return (val);
198 1.1 pk }
199 1.1 pk
200 1.1 pk
201 1.1 pk int
202 1.1 pk lematch_sbus(parent, cf, aux)
203 1.1 pk struct device *parent;
204 1.1 pk struct cfdata *cf;
205 1.1 pk void *aux;
206 1.1 pk {
207 1.1 pk struct sbus_attach_args *sa = aux;
208 1.1 pk
209 1.1 pk return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0);
210 1.1 pk }
211 1.1 pk
212 1.1 pk #define SAME_LANCE(bp, sa) \
213 1.1 pk ((bp->val[0] == sa->sa_slot && bp->val[1] == sa->sa_offset) || \
214 1.1 pk (bp->val[0] == -1 && bp->val[1] == sc->sc_dev.dv_unit))
215 1.1 pk
216 1.1 pk void
217 1.1 pk leattach_sbus(parent, self, aux)
218 1.1 pk struct device *parent, *self;
219 1.1 pk void *aux;
220 1.1 pk {
221 1.1 pk struct sbus_attach_args *sa = aux;
222 1.1 pk struct le_softc *lesc = (struct le_softc *)self;
223 1.1 pk struct lance_softc *sc = &lesc->sc_am7990.lsc;
224 1.1 pk struct sbusdev *sd;
225 1.1 pk bus_space_handle_t bh;
226 1.1 pk /* XXX the following declarations should be elsewhere */
227 1.1 pk extern void myetheraddr __P((u_char *));
228 1.1 pk
229 1.1 pk
230 1.1 pk lesc->sc_bustag = sa->sa_bustag;
231 1.1 pk lesc->sc_dmatag = sa->sa_dmatag;
232 1.1 pk
233 1.1 pk if (sbus_bus_map(sa->sa_bustag,
234 1.1 pk sa->sa_slot,
235 1.1 pk sa->sa_offset,
236 1.1 pk sizeof(struct lereg1),
237 1.1 pk BUS_SPACE_MAP_LINEAR,
238 1.1 pk 0, &bh) != 0) {
239 1.1 pk printf("%s @ sbus: cannot map registers\n", self->dv_xname);
240 1.1 pk return;
241 1.1 pk }
242 1.1 pk lesc->sc_r1 = (struct lereg1 *)bh;
243 1.1 pk
244 1.1 pk /*
245 1.1 pk * Look for an "unallocated" lebuffer and pair it with
246 1.1 pk * this `le' device on the assumption that we're on
247 1.1 pk * a pre-historic ROM that doesn't establish le<=>lebuffer
248 1.1 pk * parent-child relationships.
249 1.1 pk */
250 1.1 pk for (sd = ((struct sbus_softc *)parent)->sc_sbdev; sd != NULL;
251 1.1 pk sd = sd->sd_bchain) {
252 1.1 pk
253 1.1 pk struct lebuf_softc *lebuf = (struct lebuf_softc *)sd->sd_dev;
254 1.1 pk
255 1.1 pk if (strncmp("lebuffer", sd->sd_dev->dv_xname, 8) != 0)
256 1.1 pk continue;
257 1.1 pk
258 1.1 pk if (lebuf->attached != 0)
259 1.1 pk continue;
260 1.1 pk
261 1.1 pk sc->sc_mem = lebuf->sc_buffer;
262 1.1 pk sc->sc_memsize = lebuf->sc_bufsiz;
263 1.1 pk sc->sc_addr = 0; /* Lance view is offset by buffer location */
264 1.1 pk lebuf->attached = 1;
265 1.1 pk
266 1.1 pk /* That old black magic... */
267 1.1 pk sc->sc_conf3 = getpropint(sa->sa_node,
268 1.1 pk "busmaster-regval",
269 1.1 pk LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON);
270 1.1 pk break;
271 1.1 pk }
272 1.1 pk
273 1.1 pk lesc->sc_sd.sd_reset = (void *)lance_reset;
274 1.1 pk sbus_establish(&lesc->sc_sd, &sc->sc_dev);
275 1.1 pk
276 1.1 pk if (sa->sa_bp != NULL && strcmp(sa->sa_bp->name, le_cd.cd_name) == 0 &&
277 1.1 pk SAME_LANCE(sa->sa_bp, sa))
278 1.1 pk sa->sa_bp->dev = &sc->sc_dev;
279 1.1 pk
280 1.1 pk if (sc->sc_mem == 0) {
281 1.1 pk bus_dma_segment_t seg;
282 1.1 pk int rseg, error;
283 1.1 pk
284 1.5 pk #ifndef BUS_DMA_24BIT
285 1.5 pk /* XXX - This flag is not defined on all archs */
286 1.5 pk #define BUS_DMA_24BIT 0
287 1.5 pk #endif
288 1.3 pk error = bus_dmamem_alloc(lesc->sc_dmatag, MEMSIZE, NBPG, 0,
289 1.3 pk &seg, 1, &rseg,
290 1.3 pk BUS_DMA_NOWAIT | BUS_DMA_24BIT);
291 1.1 pk if (error) {
292 1.1 pk printf("if_le: DMA buffer alloc error %d\n", error);
293 1.1 pk return;
294 1.1 pk }
295 1.3 pk error = bus_dmamem_map(lesc->sc_dmatag, &seg, rseg, MEMSIZE,
296 1.1 pk (caddr_t *)&sc->sc_mem,
297 1.3 pk BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
298 1.1 pk if (error) {
299 1.1 pk printf("if_le: DMA buffer map error %d\n", error);
300 1.1 pk return;
301 1.1 pk }
302 1.1 pk
303 1.1 pk sc->sc_addr = seg.ds_addr & 0xffffff;
304 1.1 pk sc->sc_memsize = MEMSIZE;
305 1.1 pk sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
306 1.1 pk }
307 1.1 pk
308 1.1 pk myetheraddr(sc->sc_enaddr);
309 1.1 pk
310 1.1 pk sc->sc_supmedia = lemedia;
311 1.1 pk sc->sc_nsupmedia = NLEMEDIA;
312 1.1 pk sc->sc_defaultmedia = lemedia[0];
313 1.1 pk
314 1.1 pk sc->sc_copytodesc = lance_copytobuf_contig;
315 1.1 pk sc->sc_copyfromdesc = lance_copyfrombuf_contig;
316 1.1 pk sc->sc_copytobuf = lance_copytobuf_contig;
317 1.1 pk sc->sc_copyfrombuf = lance_copyfrombuf_contig;
318 1.1 pk sc->sc_zerobuf = lance_zerobuf_contig;
319 1.1 pk
320 1.1 pk sc->sc_rdcsr = lerdcsr;
321 1.1 pk sc->sc_wrcsr = lewrcsr;
322 1.1 pk
323 1.1 pk am7990_config(&lesc->sc_am7990);
324 1.1 pk
325 1.1 pk (void)bus_intr_establish(lesc->sc_bustag, sa->sa_pri, 0,
326 1.1 pk am7990_intr, sc);
327 1.1 pk }
328