mb8795.c revision 1.44 1 1.44 christos /* $NetBSD: mb8795.c,v 1.44 2008/12/16 22:35:24 christos Exp $ */
2 1.1 dbj /*
3 1.1 dbj * Copyright (c) 1998 Darrin B. Jewell
4 1.1 dbj * All rights reserved.
5 1.1 dbj *
6 1.1 dbj * Redistribution and use in source and binary forms, with or without
7 1.1 dbj * modification, are permitted provided that the following conditions
8 1.1 dbj * are met:
9 1.1 dbj * 1. Redistributions of source code must retain the above copyright
10 1.1 dbj * notice, this list of conditions and the following disclaimer.
11 1.1 dbj * 2. Redistributions in binary form must reproduce the above copyright
12 1.1 dbj * notice, this list of conditions and the following disclaimer in the
13 1.1 dbj * documentation and/or other materials provided with the distribution.
14 1.1 dbj * 3. All advertising materials mentioning features or use of this software
15 1.1 dbj * must display the following acknowledgement:
16 1.1 dbj * This product includes software developed by Darrin B. Jewell
17 1.1 dbj * 4. The name of the author may not be used to endorse or promote products
18 1.1 dbj * derived from this software without specific prior written permission
19 1.1 dbj *
20 1.1 dbj * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 1.1 dbj * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 1.1 dbj * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 1.1 dbj * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 1.1 dbj * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 1.1 dbj * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 1.1 dbj * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 1.1 dbj * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 1.1 dbj * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 1.1 dbj * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 1.1 dbj */
31 1.33 lukem
32 1.33 lukem #include <sys/cdefs.h>
33 1.44 christos __KERNEL_RCSID(0, "$NetBSD: mb8795.c,v 1.44 2008/12/16 22:35:24 christos Exp $");
34 1.1 dbj
35 1.2 jonathan #include "opt_inet.h"
36 1.1 dbj #include "bpfilter.h"
37 1.1 dbj #include "rnd.h"
38 1.1 dbj
39 1.1 dbj #include <sys/param.h>
40 1.1 dbj #include <sys/systm.h>
41 1.1 dbj #include <sys/mbuf.h>
42 1.1 dbj #include <sys/syslog.h>
43 1.1 dbj #include <sys/socket.h>
44 1.1 dbj #include <sys/device.h>
45 1.1 dbj #include <sys/malloc.h>
46 1.1 dbj #include <sys/ioctl.h>
47 1.1 dbj #include <sys/errno.h>
48 1.1 dbj #if NRND > 0
49 1.1 dbj #include <sys/rnd.h>
50 1.1 dbj #endif
51 1.1 dbj
52 1.1 dbj #include <net/if.h>
53 1.1 dbj #include <net/if_dl.h>
54 1.1 dbj #include <net/if_ether.h>
55 1.1 dbj
56 1.1 dbj #include <net/if_media.h>
57 1.1 dbj
58 1.1 dbj #ifdef INET
59 1.1 dbj #include <netinet/in.h>
60 1.1 dbj #include <netinet/if_inarp.h>
61 1.1 dbj #include <netinet/in_systm.h>
62 1.1 dbj #include <netinet/in_var.h>
63 1.1 dbj #include <netinet/ip.h>
64 1.1 dbj #endif
65 1.1 dbj
66 1.1 dbj
67 1.1 dbj
68 1.1 dbj #if NBPFILTER > 0
69 1.1 dbj #include <net/bpf.h>
70 1.1 dbj #include <net/bpfdesc.h>
71 1.1 dbj #endif
72 1.1 dbj
73 1.1 dbj #include <machine/cpu.h>
74 1.1 dbj #include <machine/bus.h>
75 1.1 dbj #include <machine/intr.h>
76 1.1 dbj
77 1.1 dbj /* @@@ this is here for the REALIGN_DMABUF hack below */
78 1.1 dbj #include "nextdmareg.h"
79 1.1 dbj #include "nextdmavar.h"
80 1.1 dbj
81 1.1 dbj #include "mb8795reg.h"
82 1.1 dbj #include "mb8795var.h"
83 1.1 dbj
84 1.27 christos #include "bmapreg.h"
85 1.27 christos
86 1.28 mycroft #ifdef DEBUG
87 1.28 mycroft #define MB8795_DEBUG
88 1.1 dbj #endif
89 1.1 dbj
90 1.27 christos #define PRINTF(x) printf x;
91 1.28 mycroft #ifdef MB8795_DEBUG
92 1.28 mycroft int mb8795_debug = 0;
93 1.28 mycroft #define DPRINTF(x) if (mb8795_debug) printf x;
94 1.1 dbj #else
95 1.1 dbj #define DPRINTF(x)
96 1.1 dbj #endif
97 1.1 dbj
98 1.28 mycroft extern int turbo;
99 1.1 dbj
100 1.1 dbj /*
101 1.1 dbj * Support for
102 1.1 dbj * Fujitsu Ethernet Data Link Controller (MB8795)
103 1.1 dbj * and the Fujitsu Manchester Encoder/Decoder (MB502).
104 1.1 dbj */
105 1.1 dbj
106 1.35 chs void mb8795_shutdown(void *);
107 1.1 dbj
108 1.35 chs bus_dmamap_t mb8795_txdma_restart(bus_dmamap_t, void *);
109 1.35 chs void mb8795_start_dma(struct mb8795_softc *);
110 1.1 dbj
111 1.35 chs int mb8795_mediachange(struct ifnet *);
112 1.35 chs void mb8795_mediastatus(struct ifnet *, struct ifmediareq *);
113 1.27 christos
114 1.1 dbj void
115 1.35 chs mb8795_config(struct mb8795_softc *sc, int *media, int nmedia, int defmedia)
116 1.1 dbj {
117 1.27 christos struct ifnet *ifp = &sc->sc_ethercom.ec_if;
118 1.1 dbj
119 1.1 dbj DPRINTF(("%s: mb8795_config()\n",sc->sc_dev.dv_xname));
120 1.1 dbj
121 1.28 mycroft /* Initialize ifnet structure. */
122 1.28 mycroft bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ);
123 1.28 mycroft ifp->if_softc = sc;
124 1.28 mycroft ifp->if_start = mb8795_start;
125 1.28 mycroft ifp->if_ioctl = mb8795_ioctl;
126 1.28 mycroft ifp->if_watchdog = mb8795_watchdog;
127 1.28 mycroft ifp->if_flags =
128 1.28 mycroft IFF_BROADCAST | IFF_NOTRAILERS;
129 1.1 dbj
130 1.27 christos /* Initialize media goo. */
131 1.27 christos ifmedia_init(&sc->sc_media, 0, mb8795_mediachange,
132 1.28 mycroft mb8795_mediastatus);
133 1.27 christos if (media != NULL) {
134 1.28 mycroft int i;
135 1.27 christos for (i = 0; i < nmedia; i++)
136 1.27 christos ifmedia_add(&sc->sc_media, media[i], 0, NULL);
137 1.27 christos ifmedia_set(&sc->sc_media, defmedia);
138 1.27 christos } else {
139 1.27 christos ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_MANUAL, 0, NULL);
140 1.27 christos ifmedia_set(&sc->sc_media, IFM_ETHER|IFM_MANUAL);
141 1.27 christos }
142 1.27 christos
143 1.1 dbj /* Attach the interface. */
144 1.1 dbj if_attach(ifp);
145 1.1 dbj ether_ifattach(ifp, sc->sc_enaddr);
146 1.1 dbj
147 1.1 dbj sc->sc_sh = shutdownhook_establish(mb8795_shutdown, sc);
148 1.1 dbj if (sc->sc_sh == NULL)
149 1.1 dbj panic("mb8795_config: can't establish shutdownhook");
150 1.1 dbj
151 1.1 dbj #if NRND > 0
152 1.1 dbj rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname,
153 1.10 explorer RND_TYPE_NET, 0);
154 1.1 dbj #endif
155 1.1 dbj
156 1.1 dbj DPRINTF(("%s: leaving mb8795_config()\n",sc->sc_dev.dv_xname));
157 1.1 dbj }
158 1.1 dbj
159 1.27 christos /*
160 1.27 christos * Media change callback.
161 1.27 christos */
162 1.27 christos int
163 1.35 chs mb8795_mediachange(struct ifnet *ifp)
164 1.27 christos {
165 1.27 christos struct mb8795_softc *sc = ifp->if_softc;
166 1.27 christos int data;
167 1.27 christos
168 1.28 mycroft if (turbo)
169 1.28 mycroft return (0);
170 1.28 mycroft
171 1.27 christos switch IFM_SUBTYPE(sc->sc_media.ifm_media) {
172 1.27 christos case IFM_AUTO:
173 1.28 mycroft if ((bus_space_read_1(sc->sc_bmap_bst, sc->sc_bmap_bsh, BMAP_DATA) &
174 1.28 mycroft BMAP_DATA_UTPENABLED_MASK) ||
175 1.28 mycroft !(bus_space_read_1(sc->sc_bmap_bst, sc->sc_bmap_bsh, BMAP_DATA) &
176 1.28 mycroft BMAP_DATA_UTPCARRIER_MASK)) {
177 1.27 christos data = BMAP_DATA_UTPENABLE;
178 1.27 christos sc->sc_media.ifm_cur->ifm_data = IFM_ETHER|IFM_10_T;
179 1.28 mycroft } else {
180 1.28 mycroft data = BMAP_DATA_BNCENABLE;
181 1.28 mycroft sc->sc_media.ifm_cur->ifm_data = IFM_ETHER|IFM_10_2;
182 1.27 christos }
183 1.27 christos break;
184 1.27 christos case IFM_10_T:
185 1.27 christos data = BMAP_DATA_UTPENABLE;
186 1.27 christos break;
187 1.27 christos case IFM_10_2:
188 1.28 mycroft data = BMAP_DATA_BNCENABLE;
189 1.27 christos break;
190 1.27 christos default:
191 1.27 christos return (1);
192 1.27 christos break;
193 1.27 christos }
194 1.27 christos
195 1.27 christos bus_space_write_1(sc->sc_bmap_bst, sc->sc_bmap_bsh,
196 1.27 christos BMAP_DDIR, BMAP_DDIR_UTPENABLE_MASK);
197 1.27 christos bus_space_write_1(sc->sc_bmap_bst, sc->sc_bmap_bsh,
198 1.27 christos BMAP_DATA, data);
199 1.27 christos
200 1.27 christos return (0);
201 1.27 christos }
202 1.27 christos
203 1.27 christos /*
204 1.27 christos * Media status callback.
205 1.27 christos */
206 1.27 christos void
207 1.35 chs mb8795_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
208 1.27 christos {
209 1.27 christos struct mb8795_softc *sc = ifp->if_softc;
210 1.28 mycroft
211 1.28 mycroft if (turbo)
212 1.28 mycroft return;
213 1.27 christos
214 1.27 christos if (IFM_SUBTYPE(ifmr->ifm_active) == IFM_AUTO) {
215 1.27 christos ifmr->ifm_active = sc->sc_media.ifm_cur->ifm_data;
216 1.27 christos }
217 1.27 christos if (IFM_SUBTYPE(ifmr->ifm_active) == IFM_10_T) {
218 1.27 christos ifmr->ifm_status = IFM_AVALID;
219 1.27 christos if (!(bus_space_read_1(sc->sc_bmap_bst, sc->sc_bmap_bsh, BMAP_DATA) &
220 1.27 christos BMAP_DATA_UTPCARRIER_MASK))
221 1.27 christos ifmr->ifm_status |= IFM_ACTIVE;
222 1.27 christos } else {
223 1.27 christos ifmr->ifm_status &= ~IFM_AVALID; /* don't know for 10_2 */
224 1.27 christos }
225 1.27 christos return;
226 1.27 christos }
227 1.1 dbj
228 1.1 dbj /****************************************************************/
229 1.28 mycroft #ifdef MB8795_DEBUG
230 1.37 christos #define XCHR(x) hexdigits[(x) & 0xf]
231 1.1 dbj static void
232 1.28 mycroft mb8795_hex_dump(unsigned char *pkt, size_t len)
233 1.1 dbj {
234 1.1 dbj size_t i, j;
235 1.1 dbj
236 1.21 dbj printf("00000000 ");
237 1.1 dbj for(i=0; i<len; i++) {
238 1.1 dbj printf("%c%c ", XCHR(pkt[i]>>4), XCHR(pkt[i]));
239 1.21 dbj if ((i+1) % 16 == 8) {
240 1.21 dbj printf(" ");
241 1.21 dbj }
242 1.1 dbj if ((i+1) % 16 == 0) {
243 1.21 dbj printf(" %c", '|');
244 1.21 dbj for(j=0; j<16; j++) {
245 1.1 dbj printf("%c", pkt[i-15+j]>=32 && pkt[i-15+j]<127?pkt[i-15+j]:'.');
246 1.21 dbj }
247 1.21 dbj printf("%c\n%c%c%c%c%c%c%c%c ", '|',
248 1.21 dbj XCHR((i+1)>>28),XCHR((i+1)>>24),XCHR((i+1)>>20),XCHR((i+1)>>16),
249 1.21 dbj XCHR((i+1)>>12), XCHR((i+1)>>8), XCHR((i+1)>>4), XCHR(i+1));
250 1.1 dbj }
251 1.1 dbj }
252 1.1 dbj printf("\n");
253 1.1 dbj }
254 1.21 dbj #undef XCHR
255 1.7 dbj #endif
256 1.1 dbj
257 1.1 dbj /*
258 1.1 dbj * Controller receive interrupt.
259 1.1 dbj */
260 1.1 dbj void
261 1.35 chs mb8795_rint(struct mb8795_softc *sc)
262 1.1 dbj {
263 1.1 dbj struct ifnet *ifp = &sc->sc_ethercom.ec_if;
264 1.1 dbj int error = 0;
265 1.1 dbj u_char rxstat;
266 1.1 dbj u_char rxmask;
267 1.1 dbj
268 1.28 mycroft rxstat = MB_READ_REG(sc, MB8795_RXSTAT);
269 1.28 mycroft rxmask = MB_READ_REG(sc, MB8795_RXMASK);
270 1.1 dbj
271 1.28 mycroft MB_WRITE_REG(sc, MB8795_RXSTAT, MB8795_RXSTAT_CLEAR);
272 1.1 dbj
273 1.28 mycroft if (rxstat & MB8795_RXSTAT_RESET) {
274 1.1 dbj DPRINTF(("%s: rx reset packet\n",
275 1.1 dbj sc->sc_dev.dv_xname));
276 1.1 dbj error++;
277 1.1 dbj }
278 1.28 mycroft if (rxstat & MB8795_RXSTAT_SHORT) {
279 1.1 dbj DPRINTF(("%s: rx short packet\n",
280 1.1 dbj sc->sc_dev.dv_xname));
281 1.1 dbj error++;
282 1.1 dbj }
283 1.28 mycroft if (rxstat & MB8795_RXSTAT_ALIGNERR) {
284 1.1 dbj DPRINTF(("%s: rx alignment error\n",
285 1.1 dbj sc->sc_dev.dv_xname));
286 1.21 dbj #if 0
287 1.1 dbj error++;
288 1.21 dbj #endif
289 1.1 dbj }
290 1.28 mycroft if (rxstat & MB8795_RXSTAT_CRCERR) {
291 1.1 dbj DPRINTF(("%s: rx CRC error\n",
292 1.1 dbj sc->sc_dev.dv_xname));
293 1.21 dbj #if 0
294 1.1 dbj error++;
295 1.21 dbj #endif
296 1.1 dbj }
297 1.28 mycroft if (rxstat & MB8795_RXSTAT_OVERFLOW) {
298 1.1 dbj DPRINTF(("%s: rx overflow error\n",
299 1.1 dbj sc->sc_dev.dv_xname));
300 1.21 dbj #if 0
301 1.1 dbj error++;
302 1.21 dbj #endif
303 1.1 dbj }
304 1.1 dbj
305 1.1 dbj if (error) {
306 1.1 dbj ifp->if_ierrors++;
307 1.1 dbj /* @@@ handle more gracefully, free memory, etc. */
308 1.1 dbj }
309 1.1 dbj
310 1.28 mycroft if (rxstat & MB8795_RXSTAT_OK) {
311 1.28 mycroft struct mbuf *m;
312 1.1 dbj int s;
313 1.1 dbj s = spldma();
314 1.1 dbj
315 1.28 mycroft while ((m = MBDMA_RX_MBUF (sc))) {
316 1.36 thorpej /* CRC is included with the packet; trim it. */
317 1.36 thorpej m->m_pkthdr.len = m->m_len = m->m_len - ETHER_CRC_LEN;
318 1.22 dbj m->m_pkthdr.rcvif = ifp;
319 1.21 dbj
320 1.22 dbj /* Find receive length, keep crc */
321 1.32 wiz /* enable DMA interrupts while we process the packet */
322 1.1 dbj splx(s);
323 1.1 dbj
324 1.28 mycroft #if defined(MB8795_DEBUG)
325 1.1 dbj /* Peek at the packet */
326 1.23 chs DPRINTF(("%s: received packet, at VA %p-%p,len %d\n",
327 1.1 dbj sc->sc_dev.dv_xname,mtod(m,u_char *),mtod(m,u_char *)+m->m_len,m->m_len));
328 1.28 mycroft if (mb8795_debug > 3) {
329 1.28 mycroft mb8795_hex_dump(mtod(m,u_char *), m->m_pkthdr.len);
330 1.28 mycroft } else if (mb8795_debug > 2) {
331 1.28 mycroft mb8795_hex_dump(mtod(m,u_char *), m->m_pkthdr.len < 255 ? m->m_pkthdr.len : 128 );
332 1.21 dbj }
333 1.1 dbj #endif
334 1.22 dbj
335 1.22 dbj #if NBPFILTER > 0
336 1.22 dbj /*
337 1.22 dbj * Pass packet to bpf if there is a listener.
338 1.22 dbj */
339 1.22 dbj if (ifp->if_bpf)
340 1.22 dbj bpf_mtap(ifp->if_bpf, m);
341 1.22 dbj #endif
342 1.22 dbj
343 1.1 dbj {
344 1.1 dbj ifp->if_ipackets++;
345 1.1 dbj
346 1.11 thorpej /* Pass the packet up. */
347 1.11 thorpej (*ifp->if_input)(ifp, m);
348 1.1 dbj }
349 1.1 dbj
350 1.1 dbj s = spldma();
351 1.1 dbj
352 1.1 dbj }
353 1.1 dbj
354 1.1 dbj splx(s);
355 1.1 dbj
356 1.1 dbj }
357 1.1 dbj
358 1.28 mycroft #ifdef MB8795_DEBUG
359 1.28 mycroft if (mb8795_debug) {
360 1.18 tv char sbuf[256];
361 1.18 tv
362 1.44 christos snprintb(sbuf, sizeof(sbuf), MB8795_RXSTAT_BITS, rxstat);
363 1.18 tv printf("%s: rx interrupt, rxstat = %s\n",
364 1.18 tv sc->sc_dev.dv_xname, sbuf);
365 1.18 tv
366 1.44 christos snprintb(sbuf, sizeof(sbuf), MB8795_RXSTAT_BITS,
367 1.44 christos MB_READ_REG(sc, MB8795_RXSTAT));
368 1.44 christos
369 1.18 tv printf("rxstat = 0x%s\n", sbuf);
370 1.18 tv
371 1.44 christos snprintb(sbuf, sizeof(sbuf), MB8795_RXMASK_BITS,
372 1.44 christos MB_READ_REG(sc, MB8795_RXMASK));
373 1.18 tv printf("rxmask = 0x%s\n", sbuf);
374 1.18 tv
375 1.44 christos snprintb(sbuf, sizeof(sbuf), MB8795_RXMODE_BITS,
376 1.44 christos MB_READ_REG(sc, MB8795_RXMODE));
377 1.18 tv printf("rxmode = 0x%s\n", sbuf);
378 1.18 tv }
379 1.18 tv #endif
380 1.17 dbj
381 1.1 dbj return;
382 1.1 dbj }
383 1.1 dbj
384 1.1 dbj /*
385 1.1 dbj * Controller transmit interrupt.
386 1.1 dbj */
387 1.1 dbj void
388 1.35 chs mb8795_tint(struct mb8795_softc *sc)
389 1.1 dbj {
390 1.1 dbj u_char txstat;
391 1.1 dbj u_char txmask;
392 1.1 dbj struct ifnet *ifp = &sc->sc_ethercom.ec_if;
393 1.1 dbj
394 1.28 mycroft panic ("tint");
395 1.28 mycroft txstat = MB_READ_REG(sc, MB8795_TXSTAT);
396 1.28 mycroft txmask = MB_READ_REG(sc, MB8795_TXMASK);
397 1.28 mycroft
398 1.28 mycroft if ((txstat & MB8795_TXSTAT_READY) ||
399 1.28 mycroft (txstat & MB8795_TXSTAT_TXRECV)) {
400 1.28 mycroft /* printf("X"); */
401 1.28 mycroft MB_WRITE_REG(sc, MB8795_TXSTAT, MB8795_TXSTAT_CLEAR);
402 1.28 mycroft /* MB_WRITE_REG(sc, MB8795_TXMASK, txmask & ~MB8795_TXMASK_READYIE); */
403 1.28 mycroft /* MB_WRITE_REG(sc, MB8795_TXMASK, txmask & ~MB8795_TXMASK_TXRXIE); */
404 1.28 mycroft MB_WRITE_REG(sc, MB8795_TXMASK, 0);
405 1.28 mycroft if ((ifp->if_flags & IFF_RUNNING) && !IF_IS_EMPTY(&sc->sc_tx_snd)) {
406 1.35 chs void mb8795_start_dma(struct mb8795_softc *); /* XXXX */
407 1.28 mycroft /* printf ("Z"); */
408 1.28 mycroft mb8795_start_dma(sc);
409 1.28 mycroft }
410 1.28 mycroft return;
411 1.28 mycroft }
412 1.1 dbj
413 1.28 mycroft if (txstat & MB8795_TXSTAT_SHORTED) {
414 1.1 dbj printf("%s: tx cable shorted\n", sc->sc_dev.dv_xname);
415 1.1 dbj ifp->if_oerrors++;
416 1.1 dbj }
417 1.28 mycroft if (txstat & MB8795_TXSTAT_UNDERFLOW) {
418 1.1 dbj printf("%s: tx underflow\n", sc->sc_dev.dv_xname);
419 1.1 dbj ifp->if_oerrors++;
420 1.1 dbj }
421 1.28 mycroft if (txstat & MB8795_TXSTAT_COLLERR) {
422 1.1 dbj DPRINTF(("%s: tx collision\n", sc->sc_dev.dv_xname));
423 1.1 dbj ifp->if_collisions++;
424 1.1 dbj }
425 1.28 mycroft if (txstat & MB8795_TXSTAT_COLLERR16) {
426 1.1 dbj printf("%s: tx 16th collision\n", sc->sc_dev.dv_xname);
427 1.1 dbj ifp->if_oerrors++;
428 1.1 dbj ifp->if_collisions += 16;
429 1.1 dbj }
430 1.1 dbj
431 1.1 dbj #if 0
432 1.28 mycroft if (txstat & MB8795_TXSTAT_READY) {
433 1.18 tv char sbuf[256];
434 1.1 dbj
435 1.44 christos snprintb(sbuf, sizeof(sbuf), MB8795_TXSTAT_BITS, txstat);
436 1.18 tv panic("%s: unexpected tx interrupt %s",
437 1.18 tv sc->sc_dev.dv_xname, sbuf);
438 1.1 dbj
439 1.1 dbj /* turn interrupt off */
440 1.28 mycroft MB_WRITE_REG(sc, MB8795_TXMASK, txmask & ~MB8795_TXMASK_READYIE);
441 1.1 dbj }
442 1.1 dbj #endif
443 1.1 dbj
444 1.28 mycroft return;
445 1.1 dbj }
446 1.1 dbj
447 1.1 dbj /****************************************************************/
448 1.1 dbj
449 1.1 dbj void
450 1.35 chs mb8795_reset(struct mb8795_softc *sc)
451 1.1 dbj {
452 1.1 dbj int s;
453 1.27 christos int i;
454 1.1 dbj
455 1.20 thorpej s = splnet();
456 1.27 christos
457 1.27 christos DPRINTF (("%s: mb8795_reset()\n",sc->sc_dev.dv_xname));
458 1.27 christos
459 1.27 christos sc->sc_ethercom.ec_if.if_flags &= ~(IFF_RUNNING|IFF_OACTIVE);
460 1.27 christos sc->sc_ethercom.ec_if.if_timer = 0;
461 1.27 christos
462 1.28 mycroft MBDMA_RESET(sc);
463 1.27 christos
464 1.28 mycroft MB_WRITE_REG(sc, MB8795_RESET, MB8795_RESET_MODE);
465 1.27 christos
466 1.27 christos mb8795_mediachange(&sc->sc_ethercom.ec_if);
467 1.27 christos
468 1.27 christos #if 0 /* This interrupt was sometimes failing to ack correctly
469 1.27 christos * causing a loop @@@
470 1.27 christos */
471 1.28 mycroft MB_WRITE_REG(sc, MB8795_TXMASK,
472 1.28 mycroft MB8795_TXMASK_UNDERFLOWIE | MB8795_TXMASK_COLLIE | MB8795_TXMASK_COLL16IE
473 1.28 mycroft | MB8795_TXMASK_PARERRIE);
474 1.27 christos #else
475 1.28 mycroft MB_WRITE_REG(sc, MB8795_TXMASK, 0);
476 1.27 christos #endif
477 1.28 mycroft MB_WRITE_REG(sc, MB8795_TXSTAT, MB8795_TXSTAT_CLEAR);
478 1.27 christos
479 1.27 christos #if 0
480 1.28 mycroft MB_WRITE_REG(sc, MB8795_RXMASK,
481 1.28 mycroft MB8795_RXMASK_OKIE | MB8795_RXMASK_RESETIE | MB8795_RXMASK_SHORTIE |
482 1.28 mycroft MB8795_RXMASK_ALIGNERRIE | MB8795_RXMASK_CRCERRIE | MB8795_RXMASK_OVERFLOWIE);
483 1.27 christos #else
484 1.28 mycroft MB_WRITE_REG(sc, MB8795_RXMASK,
485 1.28 mycroft MB8795_RXMASK_OKIE | MB8795_RXMASK_RESETIE | MB8795_RXMASK_SHORTIE);
486 1.27 christos #endif
487 1.27 christos
488 1.28 mycroft MB_WRITE_REG(sc, MB8795_RXSTAT, MB8795_RXSTAT_CLEAR);
489 1.27 christos
490 1.27 christos for(i=0;i<sizeof(sc->sc_enaddr);i++) {
491 1.28 mycroft MB_WRITE_REG(sc, MB8795_ENADDR+i, sc->sc_enaddr[i]);
492 1.27 christos }
493 1.27 christos
494 1.27 christos DPRINTF(("%s: initializing ethernet %02x:%02x:%02x:%02x:%02x:%02x, size=%d\n",
495 1.27 christos sc->sc_dev.dv_xname,
496 1.27 christos sc->sc_enaddr[0],sc->sc_enaddr[1],sc->sc_enaddr[2],
497 1.27 christos sc->sc_enaddr[3],sc->sc_enaddr[4],sc->sc_enaddr[5],
498 1.27 christos sizeof(sc->sc_enaddr)));
499 1.27 christos
500 1.28 mycroft MB_WRITE_REG(sc, MB8795_RESET, 0);
501 1.27 christos
502 1.1 dbj splx(s);
503 1.1 dbj }
504 1.1 dbj
505 1.1 dbj void
506 1.35 chs mb8795_watchdog(struct ifnet *ifp)
507 1.1 dbj {
508 1.1 dbj struct mb8795_softc *sc = ifp->if_softc;
509 1.1 dbj
510 1.1 dbj log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname);
511 1.1 dbj ++ifp->if_oerrors;
512 1.1 dbj
513 1.23 chs DPRINTF(("%s: %lld input errors, %lld input packets\n",
514 1.1 dbj sc->sc_dev.dv_xname, ifp->if_ierrors, ifp->if_ipackets));
515 1.1 dbj
516 1.27 christos ifp->if_flags &= ~IFF_RUNNING;
517 1.27 christos mb8795_init(sc);
518 1.1 dbj }
519 1.1 dbj
520 1.1 dbj /*
521 1.1 dbj * Initialization of interface; set up initialization block
522 1.1 dbj * and transmit/receive descriptor rings.
523 1.1 dbj */
524 1.1 dbj void
525 1.35 chs mb8795_init(struct mb8795_softc *sc)
526 1.1 dbj {
527 1.27 christos struct ifnet *ifp = &sc->sc_ethercom.ec_if;
528 1.27 christos int s;
529 1.1 dbj
530 1.27 christos DPRINTF (("%s: mb8795_init()\n",sc->sc_dev.dv_xname));
531 1.28 mycroft
532 1.27 christos if (ifp->if_flags & IFF_UP) {
533 1.27 christos int rxmode;
534 1.1 dbj
535 1.30 mycroft s = spldma();
536 1.30 mycroft if ((ifp->if_flags & IFF_RUNNING) == 0)
537 1.27 christos mb8795_reset(sc);
538 1.30 mycroft
539 1.30 mycroft if (ifp->if_flags & IFF_PROMISC)
540 1.28 mycroft rxmode = MB8795_RXMODE_PROMISCUOUS;
541 1.30 mycroft else
542 1.30 mycroft rxmode = MB8795_RXMODE_NORMAL;
543 1.30 mycroft /* XXX add support for multicast */
544 1.30 mycroft if (turbo)
545 1.30 mycroft rxmode |= MB8795_RXMODE_TEST;
546 1.27 christos
547 1.30 mycroft /* switching mode probably borken now with turbo */
548 1.28 mycroft MB_WRITE_REG(sc, MB8795_TXMODE,
549 1.28 mycroft turbo ? MB8795_TXMODE_TURBO1 : MB8795_TXMODE_LB_DISABLE);
550 1.28 mycroft MB_WRITE_REG(sc, MB8795_RXMODE, rxmode);
551 1.27 christos
552 1.30 mycroft if ((ifp->if_flags & IFF_RUNNING) == 0) {
553 1.28 mycroft MBDMA_RX_SETUP(sc);
554 1.28 mycroft MBDMA_TX_SETUP(sc);
555 1.27 christos
556 1.27 christos ifp->if_flags |= IFF_RUNNING;
557 1.27 christos ifp->if_flags &= ~IFF_OACTIVE;
558 1.27 christos ifp->if_timer = 0;
559 1.27 christos
560 1.28 mycroft MBDMA_RX_GO(sc);
561 1.1 dbj }
562 1.27 christos splx(s);
563 1.21 dbj #if 0
564 1.27 christos s = spldma();
565 1.27 christos if (! IF_IS_EMPTY(&sc->sc_tx_snd)) {
566 1.27 christos mb8795_start_dma(ifp);
567 1.27 christos }
568 1.27 christos splx(s);
569 1.21 dbj #endif
570 1.27 christos } else {
571 1.27 christos mb8795_reset(sc);
572 1.1 dbj }
573 1.1 dbj }
574 1.1 dbj
575 1.1 dbj void
576 1.35 chs mb8795_shutdown(void *arg)
577 1.1 dbj {
578 1.27 christos struct mb8795_softc *sc = (struct mb8795_softc *)arg;
579 1.28 mycroft
580 1.28 mycroft DPRINTF(("%s: mb8795_shutdown()\n",sc->sc_dev.dv_xname));
581 1.28 mycroft
582 1.27 christos mb8795_reset(sc);
583 1.1 dbj }
584 1.1 dbj
585 1.1 dbj /****************************************************************/
586 1.1 dbj int
587 1.40 christos mb8795_ioctl(struct ifnet *ifp, u_long cmd, void *data)
588 1.1 dbj {
589 1.35 chs struct mb8795_softc *sc = ifp->if_softc;
590 1.1 dbj struct ifaddr *ifa = (struct ifaddr *)data;
591 1.1 dbj struct ifreq *ifr = (struct ifreq *)data;
592 1.1 dbj int s, error = 0;
593 1.1 dbj
594 1.20 thorpej s = splnet();
595 1.1 dbj
596 1.28 mycroft DPRINTF(("%s: mb8795_ioctl()\n",sc->sc_dev.dv_xname));
597 1.28 mycroft
598 1.1 dbj switch (cmd) {
599 1.1 dbj
600 1.43 dyoung case SIOCINITIFADDR:
601 1.43 dyoung DPRINTF(("%s: mb8795_ioctl() SIOCINITIFADDR\n",sc->sc_dev.dv_xname));
602 1.1 dbj ifp->if_flags |= IFF_UP;
603 1.1 dbj
604 1.43 dyoung mb8795_init(sc);
605 1.1 dbj switch (ifa->ifa_addr->sa_family) {
606 1.1 dbj #ifdef INET
607 1.1 dbj case AF_INET:
608 1.1 dbj arp_ifinit(ifp, ifa);
609 1.1 dbj break;
610 1.1 dbj #endif
611 1.1 dbj default:
612 1.1 dbj break;
613 1.1 dbj }
614 1.1 dbj break;
615 1.1 dbj
616 1.1 dbj
617 1.1 dbj case SIOCSIFFLAGS:
618 1.28 mycroft DPRINTF(("%s: mb8795_ioctl() SIOCSIFFLAGS\n",sc->sc_dev.dv_xname));
619 1.43 dyoung if ((error = ifioctl_common(ifp, cmd, data)) != 0)
620 1.43 dyoung break;
621 1.43 dyoung switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) {
622 1.43 dyoung case IFF_RUNNING:
623 1.1 dbj /*
624 1.1 dbj * If interface is marked down and it is running, then
625 1.1 dbj * stop it.
626 1.1 dbj */
627 1.27 christos /* ifp->if_flags &= ~IFF_RUNNING; */
628 1.27 christos mb8795_reset(sc);
629 1.43 dyoung break;
630 1.43 dyoung case IFF_UP:
631 1.1 dbj /*
632 1.1 dbj * If interface is marked up and it is stopped, then
633 1.1 dbj * start it.
634 1.1 dbj */
635 1.1 dbj mb8795_init(sc);
636 1.43 dyoung break;
637 1.43 dyoung default:
638 1.1 dbj /*
639 1.1 dbj * Reset the interface to pick up changes in any other
640 1.1 dbj * flags that affect hardware registers.
641 1.1 dbj */
642 1.1 dbj mb8795_init(sc);
643 1.43 dyoung break;
644 1.1 dbj }
645 1.28 mycroft #ifdef MB8795_DEBUG
646 1.1 dbj if (ifp->if_flags & IFF_DEBUG)
647 1.1 dbj sc->sc_debug = 1;
648 1.1 dbj else
649 1.1 dbj sc->sc_debug = 0;
650 1.1 dbj #endif
651 1.1 dbj break;
652 1.1 dbj
653 1.1 dbj case SIOCADDMULTI:
654 1.1 dbj case SIOCDELMULTI:
655 1.41 dyoung DPRINTF(("%s: mb8795_ioctl() SIOCADDMULTI\n",
656 1.41 dyoung sc->sc_dev.dv_xname));
657 1.41 dyoung if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) {
658 1.1 dbj /*
659 1.1 dbj * Multicast list has changed; set the hardware filter
660 1.1 dbj * accordingly.
661 1.1 dbj */
662 1.34 thorpej if (ifp->if_flags & IFF_RUNNING)
663 1.34 thorpej mb8795_init(sc);
664 1.1 dbj error = 0;
665 1.1 dbj }
666 1.1 dbj break;
667 1.1 dbj
668 1.1 dbj case SIOCGIFMEDIA:
669 1.1 dbj case SIOCSIFMEDIA:
670 1.28 mycroft DPRINTF(("%s: mb8795_ioctl() SIOCSIFMEDIA\n",sc->sc_dev.dv_xname));
671 1.1 dbj error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd);
672 1.1 dbj break;
673 1.1 dbj
674 1.1 dbj default:
675 1.43 dyoung error = ether_ioctl(ifp, cmd, data);
676 1.1 dbj break;
677 1.1 dbj }
678 1.1 dbj
679 1.1 dbj splx(s);
680 1.1 dbj
681 1.1 dbj #if 0
682 1.1 dbj DPRINTF(("DEBUG: mb8795_ioctl(0x%lx) returning %d\n",
683 1.1 dbj cmd,error));
684 1.1 dbj #endif
685 1.1 dbj
686 1.1 dbj return (error);
687 1.1 dbj }
688 1.1 dbj
689 1.1 dbj /*
690 1.1 dbj * Setup output on interface.
691 1.1 dbj * Get another datagram to send off of the interface queue, and map it to the
692 1.1 dbj * interface before starting the output.
693 1.20 thorpej * Called only at splnet or interrupt level.
694 1.1 dbj */
695 1.1 dbj void
696 1.35 chs mb8795_start(struct ifnet *ifp)
697 1.1 dbj {
698 1.26 jdolecek struct mb8795_softc *sc = ifp->if_softc;
699 1.26 jdolecek struct mbuf *m;
700 1.26 jdolecek int s;
701 1.26 jdolecek
702 1.26 jdolecek DPRINTF(("%s: mb8795_start()\n",sc->sc_dev.dv_xname));
703 1.26 jdolecek
704 1.26 jdolecek #ifdef DIAGNOSTIC
705 1.26 jdolecek IFQ_POLL(&ifp->if_snd, m);
706 1.26 jdolecek if (m == 0) {
707 1.31 provos panic("%s: No packet to start",
708 1.26 jdolecek sc->sc_dev.dv_xname);
709 1.26 jdolecek }
710 1.26 jdolecek #endif
711 1.26 jdolecek
712 1.26 jdolecek while (1) {
713 1.26 jdolecek if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
714 1.26 jdolecek return;
715 1.26 jdolecek
716 1.26 jdolecek #if 0
717 1.26 jdolecek return; /* @@@ Turn off xmit for debugging */
718 1.26 jdolecek #endif
719 1.26 jdolecek
720 1.26 jdolecek ifp->if_flags |= IFF_OACTIVE;
721 1.26 jdolecek
722 1.26 jdolecek IFQ_DEQUEUE(&ifp->if_snd, m);
723 1.26 jdolecek if (m == 0) {
724 1.26 jdolecek ifp->if_flags &= ~IFF_OACTIVE;
725 1.26 jdolecek return;
726 1.26 jdolecek }
727 1.26 jdolecek
728 1.26 jdolecek #if NBPFILTER > 0
729 1.26 jdolecek /*
730 1.26 jdolecek * Pass packet to bpf if there is a listener.
731 1.26 jdolecek */
732 1.26 jdolecek if (ifp->if_bpf)
733 1.26 jdolecek bpf_mtap(ifp->if_bpf, m);
734 1.26 jdolecek #endif
735 1.26 jdolecek
736 1.26 jdolecek s = spldma();
737 1.26 jdolecek IF_ENQUEUE(&sc->sc_tx_snd, m);
738 1.28 mycroft if (!MBDMA_TX_ISACTIVE(sc))
739 1.28 mycroft mb8795_start_dma(sc);
740 1.26 jdolecek splx(s);
741 1.26 jdolecek
742 1.26 jdolecek ifp->if_flags &= ~IFF_OACTIVE;
743 1.26 jdolecek }
744 1.26 jdolecek
745 1.26 jdolecek }
746 1.26 jdolecek
747 1.26 jdolecek void
748 1.35 chs mb8795_start_dma(struct mb8795_softc *sc)
749 1.26 jdolecek {
750 1.28 mycroft struct ifnet *ifp = &sc->sc_ethercom.ec_if;
751 1.28 mycroft struct mbuf *m;
752 1.28 mycroft u_char txmask;
753 1.1 dbj
754 1.26 jdolecek DPRINTF(("%s: mb8795_start_dma()\n",sc->sc_dev.dv_xname));
755 1.1 dbj
756 1.1 dbj #if (defined(DIAGNOSTIC))
757 1.25 jdolecek {
758 1.25 jdolecek u_char txstat;
759 1.28 mycroft txstat = MB_READ_REG(sc, MB8795_TXSTAT);
760 1.28 mycroft if (!turbo && !(txstat & MB8795_TXSTAT_READY)) {
761 1.6 dbj /* @@@ I used to panic here, but then it paniced once.
762 1.6 dbj * Let's see if I can just reset instead. [ dbj 980706.1900 ]
763 1.6 dbj */
764 1.25 jdolecek printf("%s: transmitter not ready\n",
765 1.25 jdolecek sc->sc_dev.dv_xname);
766 1.27 christos ifp->if_flags &= ~IFF_RUNNING;
767 1.27 christos mb8795_init(sc);
768 1.6 dbj return;
769 1.25 jdolecek }
770 1.25 jdolecek }
771 1.1 dbj #endif
772 1.1 dbj
773 1.1 dbj #if 0
774 1.1 dbj return; /* @@@ Turn off xmit for debugging */
775 1.1 dbj #endif
776 1.1 dbj
777 1.28 mycroft IF_DEQUEUE(&sc->sc_tx_snd, m);
778 1.28 mycroft if (m == 0) {
779 1.26 jdolecek #ifdef DIAGNOSTIC
780 1.31 provos panic("%s: No packet to start_dma",
781 1.26 jdolecek sc->sc_dev.dv_xname);
782 1.26 jdolecek #endif
783 1.25 jdolecek return;
784 1.25 jdolecek }
785 1.1 dbj
786 1.28 mycroft MB_WRITE_REG(sc, MB8795_TXSTAT, MB8795_TXSTAT_CLEAR);
787 1.28 mycroft txmask = MB_READ_REG(sc, MB8795_TXMASK);
788 1.28 mycroft /* MB_WRITE_REG(sc, MB8795_TXMASK, txmask | MB8795_TXMASK_READYIE); */
789 1.28 mycroft /* MB_WRITE_REG(sc, MB8795_TXMASK, txmask | MB8795_TXMASK_TXRXIE); */
790 1.26 jdolecek
791 1.1 dbj ifp->if_timer = 5;
792 1.1 dbj
793 1.28 mycroft if (MBDMA_TX_MBUF(sc, m))
794 1.25 jdolecek return;
795 1.1 dbj
796 1.28 mycroft MBDMA_TX_GO(sc);
797 1.28 mycroft if (turbo)
798 1.28 mycroft MB_WRITE_REG(sc, MB8795_TXMODE, MB8795_TXMODE_TURBO1 | MB8795_TXMODE_TURBOSTART);
799 1.1 dbj
800 1.26 jdolecek ifp->if_opackets++;
801 1.1 dbj }
802 1.1 dbj
803 1.1 dbj /****************************************************************/
804