44
45#include <sys/kernel.h>
46#include <sys/malloc.h>
47#include <sys/conf.h>
48#include <sys/sysctl.h>
49
50#if __FreeBSD_version < 500000
51#include <machine/clock.h> /* for DELAY() */
52#endif
53
54#include <sys/bus.h> /* used by smbus and newbus */
55#include <machine/bus.h>
56
57#include <dev/firewire/firewire.h>
58#include <dev/firewire/firewirereg.h>
59#include <dev/firewire/fwmem.h>
60#include <dev/firewire/iec13213.h>
61#include <dev/firewire/iec68113.h>
62
63struct crom_src_buf {
64 struct crom_src src;
65 struct crom_chunk root;
66 struct crom_chunk vendor;
67 struct crom_chunk hw;
68};
69
70int firewire_debug=0, try_bmr=1;
71SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
72 "FireWire driver debug flag");
73SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
74SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
75 "Try to be a bus manager");
76
77MALLOC_DEFINE(M_FW, "firewire", "FireWire");
78MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
79
80#define FW_MAXASYRTY 4
81#define FW_MAXDEVRCNT 4
82
83devclass_t firewire_devclass;
84
85static int firewire_match __P((device_t));
86static int firewire_attach __P((device_t));
87static int firewire_detach __P((device_t));
88static int firewire_resume __P((device_t));
89#if 0
90static int firewire_shutdown __P((device_t));
91#endif
92static device_t firewire_add_child __P((device_t, int, const char *, int));
93static void fw_try_bmr __P((void *));
94static void fw_try_bmr_callback __P((struct fw_xfer *));
95static void fw_asystart __P((struct fw_xfer *));
96static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *));
97static void fw_bus_probe __P((struct firewire_comm *));
98static void fw_bus_explore __P((struct firewire_comm *));
99static void fw_bus_explore_callback __P((struct fw_xfer *));
100static void fw_attach_dev __P((struct firewire_comm *));
101#ifdef FW_VMACCESS
102static void fw_vmaccess __P((struct fw_xfer *));
103#endif
104struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t,
105 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *))));
106static int fw_bmr __P((struct firewire_comm *));
107
108static device_method_t firewire_methods[] = {
109 /* Device interface */
110 DEVMETHOD(device_probe, firewire_match),
111 DEVMETHOD(device_attach, firewire_attach),
112 DEVMETHOD(device_detach, firewire_detach),
113 DEVMETHOD(device_suspend, bus_generic_suspend),
114 DEVMETHOD(device_resume, firewire_resume),
115 DEVMETHOD(device_shutdown, bus_generic_shutdown),
116
117 /* Bus interface */
118 DEVMETHOD(bus_add_child, firewire_add_child),
119 DEVMETHOD(bus_print_child, bus_generic_print_child),
120
121 { 0, 0 }
122};
123char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"};
124
125/* IEEE-1394a Table C-2 Gap count as a function of hops*/
126#define MAX_GAPHOP 15
127u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
128 21, 24, 26, 29, 32, 35, 37, 40};
129
130extern struct cdevsw firewire_cdevsw;
131
132static driver_t firewire_driver = {
133 "firewire",
134 firewire_methods,
135 sizeof(struct firewire_softc),
136};
137
138/*
139 * Lookup fwdev by node id.
140 */
141struct fw_device *
142fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
143{
144 struct fw_device *fwdev;
145 int s;
146
147 s = splfw();
148 STAILQ_FOREACH(fwdev, &fc->devices, link)
149 if (fwdev->dst == dst)
150 break;
151 splx(s);
152
153 if(fwdev == NULL) return NULL;
154 if(fwdev->status == FWDEVINVAL) return NULL;
155 return fwdev;
156}
157
158/*
159 * Lookup fwdev by EUI64.
160 */
161struct fw_device *
162fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
163{
164 struct fw_device *fwdev;
165 int s;
166
167 s = splfw();
168 STAILQ_FOREACH(fwdev, &fc->devices, link)
169 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
170 break;
171 splx(s);
172
173 if(fwdev == NULL) return NULL;
174 if(fwdev->status == FWDEVINVAL) return NULL;
175 return fwdev;
176}
177
178/*
179 * Async. request procedure for userland application.
180 */
181int
182fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
183{
184 int err = 0;
185 struct fw_xferq *xferq;
186 int tl = 0, len;
187 struct fw_pkt *fp;
188 int tcode;
189 struct tcode_info *info;
190
191 if(xfer == NULL) return EINVAL;
192 if(xfer->send.len > MAXREC(fc->maxrec)){
193 printf("send.len > maxrec\n");
194 return EINVAL;
195 }
196 if(xfer->act.hand == NULL){
197 printf("act.hand == NULL\n");
198 return EINVAL;
199 }
200 fp = (struct fw_pkt *)xfer->send.buf;
201
202 tcode = fp->mode.common.tcode & 0xf;
203 info = &fc->tcode[tcode];
204 if (info->flag == 0) {
205 printf("invalid tcode=%d\n", tcode);
206 return EINVAL;
207 }
208 if (info->flag & FWTI_REQ)
209 xferq = fc->atq;
210 else
211 xferq = fc->ats;
212 len = info->hdr_len;
213 if (info->flag & FWTI_BLOCK_STR)
214 len += fp->mode.stream.len;
215 else if (info->flag & FWTI_BLOCK_ASY)
216 len += fp->mode.rresb.len;
217 if( len > xfer->send.len ){
218 printf("len(%d) > send.len(%d) (tcode=%d)\n",
219 len, xfer->send.len, tcode);
220 return EINVAL;
221 }
222 xfer->send.len = len;
223
224 if(xferq->start == NULL){
225 printf("xferq->start == NULL\n");
226 return EINVAL;
227 }
228 if(!(xferq->queued < xferq->maxq)){
229 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
230 xferq->queued);
231 return EINVAL;
232 }
233
234
235 if (info->flag & FWTI_TLABEL) {
236 if((tl = fw_get_tlabel(fc, xfer)) == -1 )
237 return EIO;
238 fp->mode.hdr.tlrt = tl << 2;
239 }
240
241 xfer->tl = tl;
242 xfer->resp = 0;
243 xfer->fc = fc;
244 xfer->q = xferq;
245 xfer->retry_req = fw_asybusy;
246
247 fw_asystart(xfer);
248 return err;
249}
250/*
251 * Wakeup blocked process.
252 */
253void
254fw_asy_callback(struct fw_xfer *xfer){
255 wakeup(xfer);
256 return;
257}
258/*
259 * Postpone to later retry.
260 */
261void fw_asybusy(struct fw_xfer *xfer){
262 printf("fw_asybusy\n");
263/*
264 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
265*/
266 DELAY(20000);
267 fw_asystart(xfer);
268 return;
269}
270
271/*
272 * Async. request with given xfer structure.
273 */
274static void
275fw_asystart(struct fw_xfer *xfer)
276{
277 struct firewire_comm *fc = xfer->fc;
278 int s;
279 if(xfer->retry++ >= fc->max_asyretry){
280 device_printf(fc->bdev, "max_asyretry exceeded\n");
281 xfer->resp = EBUSY;
282 xfer->state = FWXF_BUSY;
283 xfer->act.hand(xfer);
284 return;
285 }
286#if 0 /* XXX allow bus explore packets only after bus rest */
287 if (fc->status < FWBUSEXPLORE) {
288 xfer->resp = EAGAIN;
289 xfer->state = FWXF_BUSY;
290 if (xfer->act.hand != NULL)
291 xfer->act.hand(xfer);
292 return;
293 }
294#endif
295 s = splfw();
296 xfer->state = FWXF_INQ;
297 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
298 xfer->q->queued ++;
299 splx(s);
300 /* XXX just queue for mbuf */
301 if (xfer->mbuf == NULL)
302 xfer->q->start(fc);
303 return;
304}
305
306static int
307firewire_match( device_t dev )
308{
309 device_set_desc(dev, "IEEE1394(FireWire) bus");
310 return -140;
311}
312
313static void
314firewire_xfer_timeout(struct firewire_comm *fc)
315{
316 struct fw_xfer *xfer;
317 struct tlabel *tl;
318 struct timeval tv;
319 struct timeval split_timeout;
320 int i, s;
321
322 split_timeout.tv_sec = 6;
323 split_timeout.tv_usec = 0;
324
325 microtime(&tv);
326 timevalsub(&tv, &split_timeout);
327
328 s = splfw();
329 for (i = 0; i < 0x40; i ++) {
330 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
331 xfer = tl->xfer;
332 if (timevalcmp(&xfer->tv, &tv, >))
333 /* the rests are newer than this */
334 break;
335 device_printf(fc->bdev,
336 "split transaction timeout dst=0x%x tl=0x%x state=%d\n",
337 xfer->dst, i, xfer->state);
338 xfer->resp = ETIMEDOUT;
339 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
340 fw_xfer_done(xfer);
341 }
342 }
343 splx(s);
344}
345
346static void
347firewire_watchdog(void *arg)
348{
349 struct firewire_comm *fc;
350
351 fc = (struct firewire_comm *)arg;
352 firewire_xfer_timeout(fc);
353 fc->timeout(fc);
354 callout_reset(&fc->timeout_callout, hz,
355 (void *)firewire_watchdog, (void *)fc);
356}
357
358/*
359 * The attach routine.
360 */
361static int
362firewire_attach( device_t dev )
363{
364 int i, unitmask, mn;
365 struct firewire_softc *sc = device_get_softc(dev);
366 device_t pa = device_get_parent(dev);
367 struct firewire_comm *fc;
368 dev_t d;
369
370 fc = (struct firewire_comm *)device_get_softc(pa);
371 sc->fc = fc;
372 fc->status = FWBUSNOTREADY;
373
374 unitmask = UNIT2MIN(device_get_unit(dev));
375
376 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
377 for ( i = 0 ; i < fc->nisodma ; i++ ){
378 mn = unitmask | i;
379 /* XXX device name should be improved */
380 d = make_dev(&firewire_cdevsw, unit2minor(mn),
381 UID_ROOT, GID_OPERATOR, 0660,
382 "fw%x", mn);
383#if __FreeBSD_version >= 500000
384 if (i == 0)
385 sc->dev = d;
386 else
387 dev_depends(sc->dev, d);
388#else
389 sc->dev[i] = d;
390#endif
391 }
392 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG),
393 UID_ROOT, GID_OPERATOR, 0660,
394 "fwmem%d", device_get_unit(dev));
395#if __FreeBSD_version >= 500000
396 dev_depends(sc->dev, d);
397#else
398 sc->dev[i] = d;
399#endif
400 CALLOUT_INIT(&sc->fc->timeout_callout);
401 CALLOUT_INIT(&sc->fc->bmr_callout);
402 CALLOUT_INIT(&sc->fc->retry_probe_callout);
403 CALLOUT_INIT(&sc->fc->busprobe_callout);
404
405 callout_reset(&sc->fc->timeout_callout, hz,
406 (void *)firewire_watchdog, (void *)sc->fc);
407
408 /* Locate our children */
409 bus_generic_probe(dev);
410
411 /* launch attachement of the added children */
412 bus_generic_attach(dev);
413
414 /* bus_reset */
415 fc->ibr(fc);
416
417 return 0;
418}
419
420/*
421 * Attach it as child.
422 */
423static device_t
424firewire_add_child(device_t dev, int order, const char *name, int unit)
425{
426 device_t child;
427 struct firewire_softc *sc;
428
429 sc = (struct firewire_softc *)device_get_softc(dev);
430 child = device_add_child(dev, name, unit);
431 if (child) {
432 device_set_ivars(child, sc->fc);
433 device_probe_and_attach(child);
434 }
435
436 return child;
437}
438
439static int
440firewire_resume(device_t dev)
441{
442 struct firewire_softc *sc;
443
444 sc = (struct firewire_softc *)device_get_softc(dev);
445 sc->fc->status = FWBUSNOTREADY;
446
447 bus_generic_resume(dev);
448
449 return(0);
450}
451
452/*
453 * Dettach it.
454 */
455static int
456firewire_detach( device_t dev )
457{
458 struct firewire_softc *sc;
459 struct csrdir *csrd, *next;
460 struct fw_device *fwdev, *fwdev_next;
461
462 sc = (struct firewire_softc *)device_get_softc(dev);
463
464 bus_generic_detach(dev);
465
466 callout_stop(&sc->fc->timeout_callout);
467 callout_stop(&sc->fc->bmr_callout);
468 callout_stop(&sc->fc->retry_probe_callout);
469 callout_stop(&sc->fc->busprobe_callout);
470
471#if __FreeBSD_version >= 500000
472 destroy_dev(sc->dev);
473#else
474 {
475 int j;
476 for (j = 0 ; j < sc->fc->nisodma + 1; j++)
477 destroy_dev(sc->dev[j]);
478 }
479#endif
480 /* XXX xfree_free and untimeout on all xfers */
481 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL;
482 fwdev = fwdev_next) {
483 fwdev_next = STAILQ_NEXT(fwdev, link);
484 free(fwdev, M_FW);
485 }
486 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) {
487 next = SLIST_NEXT(csrd, link);
488 free(csrd, M_FW);
489 }
490 free(sc->fc->topology_map, M_FW);
491 free(sc->fc->speed_map, M_FW);
492 free(sc->fc->crom_src_buf, M_FW);
493 return(0);
494}
495#if 0
496static int
497firewire_shutdown( device_t dev )
498{
499 return 0;
500}
501#endif
502
503
504static void
505fw_xferq_drain(struct fw_xferq *xferq)
506{
507 struct fw_xfer *xfer;
508
509 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
510 STAILQ_REMOVE_HEAD(&xferq->q, link);
511 xferq->queued --;
512 xfer->resp = EAGAIN;
513 fw_xfer_done(xfer);
514 }
515}
516
517void
518fw_drain_txq(struct firewire_comm *fc)
519{
520 int i;
521
522 fw_xferq_drain(fc->atq);
523 fw_xferq_drain(fc->ats);
524 for(i = 0; i < fc->nisodma; i++)
525 fw_xferq_drain(fc->it[i]);
526}
527
528static void
529fw_reset_csr(struct firewire_comm *fc)
530{
531 int i;
532
533 CSRARC(fc, STATE_CLEAR)
534 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
535 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
536 CSRARC(fc, NODE_IDS) = 0x3f;
537
538 CSRARC(fc, TOPO_MAP + 8) = 0;
539 fc->irm = -1;
540
541 fc->max_node = -1;
542
543 for(i = 2; i < 0x100/4 - 2 ; i++){
544 CSRARC(fc, SPED_MAP + i * 4) = 0;
545 }
546 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
547 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
548 CSRARC(fc, RESET_START) = 0;
549 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
550 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
551 CSRARC(fc, CYCLE_TIME) = 0x0;
552 CSRARC(fc, BUS_TIME) = 0x0;
553 CSRARC(fc, BUS_MGR_ID) = 0x3f;
554 CSRARC(fc, BANDWIDTH_AV) = 4915;
555 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
556 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
557 CSRARC(fc, IP_CHANNELS) = (1 << 31);
558
559 CSRARC(fc, CONF_ROM) = 0x04 << 24;
560 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
561 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
562 1 << 28 | 0xff << 16 | 0x09 << 8;
563 CSRARC(fc, CONF_ROM + 0xc) = 0;
564
565/* DV depend CSRs see blue book */
566 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
567 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
568
569 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
570 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
571}
572
573static void
574fw_init_crom(struct firewire_comm *fc)
575{
576 struct crom_src *src;
577
578 fc->crom_src_buf = (struct crom_src_buf *)
579 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO);
580 if (fc->crom_src_buf == NULL)
581 return;
582
583 src = &fc->crom_src_buf->src;
584 bzero(src, sizeof(struct crom_src));
585
586 /* BUS info sample */
587 src->hdr.info_len = 4;
588
589 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
590
591 src->businfo.irmc = 1;
592 src->businfo.cmc = 1;
593 src->businfo.isc = 1;
594 src->businfo.bmc = 1;
595 src->businfo.pmc = 0;
596 src->businfo.cyc_clk_acc = 100;
597 src->businfo.max_rec = fc->maxrec;
598 src->businfo.max_rom = MAXROM_4;
599 src->businfo.generation = 1;
600 src->businfo.link_spd = fc->speed;
601
602 src->businfo.eui64.hi = fc->eui.hi;
603 src->businfo.eui64.lo = fc->eui.lo;
604
605 STAILQ_INIT(&src->chunk_list);
606
607 fc->crom_src = src;
608 fc->crom_root = &fc->crom_src_buf->root;
609}
610
611static void
612fw_reset_crom(struct firewire_comm *fc)
613{
614 struct crom_src_buf *buf;
615 struct crom_src *src;
616 struct crom_chunk *root;
617
618 if (fc->crom_src_buf == NULL)
619 fw_init_crom(fc);
620
621 buf = fc->crom_src_buf;
622 src = fc->crom_src;
623 root = fc->crom_root;
624
625 STAILQ_INIT(&src->chunk_list);
626
627 bzero(root, sizeof(struct crom_chunk));
628 crom_add_chunk(src, NULL, root, 0);
629 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
630 /* private company_id */
631 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
632 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project");
633 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version);
634 crom_add_simple_text(src, root, &buf->hw, hostname);
635}
636
637/*
638 * Called after bus reset.
639 */
640void
641fw_busreset(struct firewire_comm *fc)
642{
643 struct firewire_dev_comm *fdc;
644 struct crom_src *src;
645 device_t *devlistp;
646 void *newrom;
647 int i, devcnt;
648
649 switch(fc->status){
650 case FWBUSMGRELECT:
651 callout_stop(&fc->bmr_callout);
652 break;
653 default:
654 break;
655 }
656 fc->status = FWBUSRESET;
657 fw_reset_csr(fc);
658 fw_reset_crom(fc);
659
660 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) {
661 for( i = 0 ; i < devcnt ; i++)
662 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
663 fdc = device_get_softc(devlistp[i]);
664 if (fdc->post_busreset != NULL)
665 fdc->post_busreset(fdc);
666 }
667 free(devlistp, M_TEMP);
668 }
669
670 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO);
671 src = &fc->crom_src_buf->src;
672 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
673 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
674 /* bump generation and reload */
675 src->businfo.generation ++;
676 /* generation must be between 0x2 and 0xF */
677 if (src->businfo.generation < 2)
678 src->businfo.generation ++;
679 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
680 bcopy(newrom, (void *)fc->config_rom, CROMSIZE);
681 }
682 free(newrom, M_FW);
683}
684
685/* Call once after reboot */
686void fw_init(struct firewire_comm *fc)
687{
688 int i;
689 struct csrdir *csrd;
690#ifdef FW_VMACCESS
691 struct fw_xfer *xfer;
692 struct fw_bind *fwb;
693#endif
694
695 fc->max_asyretry = FW_MAXASYRTY;
696
697 fc->arq->queued = 0;
698 fc->ars->queued = 0;
699 fc->atq->queued = 0;
700 fc->ats->queued = 0;
701
702 fc->arq->buf = NULL;
703 fc->ars->buf = NULL;
704 fc->atq->buf = NULL;
705 fc->ats->buf = NULL;
706
707 fc->arq->flag = 0;
708 fc->ars->flag = 0;
709 fc->atq->flag = 0;
710 fc->ats->flag = 0;
711
712 STAILQ_INIT(&fc->atq->q);
713 STAILQ_INIT(&fc->ats->q);
714
715 for( i = 0 ; i < fc->nisodma ; i ++ ){
716 fc->it[i]->queued = 0;
717 fc->ir[i]->queued = 0;
718
719 fc->it[i]->start = NULL;
720 fc->ir[i]->start = NULL;
721
722 fc->it[i]->buf = NULL;
723 fc->ir[i]->buf = NULL;
724
725 fc->it[i]->flag = FWXFERQ_STREAM;
726 fc->ir[i]->flag = FWXFERQ_STREAM;
727
728 STAILQ_INIT(&fc->it[i]->q);
729 STAILQ_INIT(&fc->ir[i]->q);
730
731 STAILQ_INIT(&fc->it[i]->binds);
732 STAILQ_INIT(&fc->ir[i]->binds);
733 }
734
735 fc->arq->maxq = FWMAXQUEUE;
736 fc->ars->maxq = FWMAXQUEUE;
737 fc->atq->maxq = FWMAXQUEUE;
738 fc->ats->maxq = FWMAXQUEUE;
739
740 for( i = 0 ; i < fc->nisodma ; i++){
741 fc->ir[i]->maxq = FWMAXQUEUE;
742 fc->it[i]->maxq = FWMAXQUEUE;
743 }
744/* Initialize csr registers */
745 fc->topology_map = (struct fw_topology_map *)malloc(
746 sizeof(struct fw_topology_map),
747 M_FW, M_NOWAIT | M_ZERO);
748 fc->speed_map = (struct fw_speed_map *)malloc(
749 sizeof(struct fw_speed_map),
750 M_FW, M_NOWAIT | M_ZERO);
751 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
752 CSRARC(fc, TOPO_MAP + 4) = 1;
753 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
754 CSRARC(fc, SPED_MAP + 4) = 1;
755
756 STAILQ_INIT(&fc->devices);
757 STAILQ_INIT(&fc->pending);
758
759/* Initialize csr ROM work space */
760 SLIST_INIT(&fc->ongocsr);
761 SLIST_INIT(&fc->csrfree);
762 for( i = 0 ; i < FWMAXCSRDIR ; i++){
763 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT);
764 if(csrd == NULL) break;
765 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
766 }
767
768/* Initialize Async handlers */
769 STAILQ_INIT(&fc->binds);
770 for( i = 0 ; i < 0x40 ; i++){
771 STAILQ_INIT(&fc->tlabels[i]);
772 }
773
774/* DV depend CSRs see blue book */
775#if 0
776 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
777 CSRARC(fc, oPCR) = 0x8000007a;
778 for(i = 4 ; i < 0x7c/4 ; i+=4){
779 CSRARC(fc, i + oPCR) = 0x8000007a;
780 }
781
782 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
783 CSRARC(fc, iPCR) = 0x803f0000;
784 for(i = 4 ; i < 0x7c/4 ; i+=4){
785 CSRARC(fc, i + iPCR) = 0x0;
786 }
787#endif
788
789 fc->crom_src_buf = NULL;
790
791#ifdef FW_VMACCESS
792 xfer = fw_xfer_alloc();
793 if(xfer == NULL) return;
794
795 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
796 if(fwb == NULL){
797 fw_xfer_free(xfer);
798 }
799 xfer->act.hand = fw_vmaccess;
800 xfer->fc = fc;
801 xfer->sc = NULL;
802
803 fwb->start_hi = 0x2;
804 fwb->start_lo = 0;
805 fwb->addrlen = 0xffffffff;
806 fwb->xfer = xfer;
807 fw_bindadd(fc, fwb);
808#endif
809}
810
811/*
812 * To lookup binded process from IEEE1394 address.
813 */
814struct fw_bind *
815fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo)
816{
817 struct fw_bind *tfw;
818 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ;
819 tfw = STAILQ_NEXT(tfw, fclist)){
820 if (tfw->act_type != FWACT_NULL &&
821 tfw->start_hi == dest_hi &&
822 tfw->start_lo <= dest_lo &&
823 (tfw->start_lo + tfw->addrlen) > dest_lo){
824 return(tfw);
825 }
826 }
827 return(NULL);
828}
829
830/*
831 * To bind IEEE1394 address block to process.
832 */
833int
834fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
835{
836 struct fw_bind *tfw, *tfw2 = NULL;
837 int err = 0;
838 tfw = STAILQ_FIRST(&fc->binds);
839 if(tfw == NULL){
840 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
841 goto out;
842 }
843 if((tfw->start_hi > fwb->start_hi) ||
844 (tfw->start_hi == fwb->start_hi &&
845 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){
846 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
847 goto out;
848 }
849 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){
850 if((tfw->start_hi < fwb->start_hi) ||
851 (tfw->start_hi == fwb->start_hi &&
852 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){
853 tfw2 = STAILQ_NEXT(tfw, fclist);
854 if(tfw2 == NULL)
855 break;
856 if((tfw2->start_hi > fwb->start_hi) ||
857 (tfw2->start_hi == fwb->start_hi &&
858 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){
859 break;
860 }else{
861 err = EBUSY;
862 goto out;
863 }
864 }
865 }
866 if(tfw != NULL){
867 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist);
868 }else{
869 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist);
870 }
871out:
872 if (!err && fwb->act_type == FWACT_CH)
873 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist);
874 return err;
875}
876
877/*
878 * To free IEEE1394 address block.
879 */
880int
881fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
882{
883 int s;
884 struct fw_xfer *xfer, *next;
885
886 s = splfw();
887 /* shall we check the existance? */
888 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
889 /* shall we do this? */
890 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
891 next = STAILQ_NEXT(xfer, link);
892 fw_xfer_free(xfer);
893 }
894 STAILQ_INIT(&fwb->xferlist);
895
896 splx(s);
897 return 0;
898}
899
900/*
901 * To free transaction label.
902 */
903static void
904fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
905{
906 struct tlabel *tl;
907 int s = splfw();
908
909 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
910 tl = STAILQ_NEXT(tl, link)){
911 if(tl->xfer == xfer){
912 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
913 free(tl, M_FW);
914 splx(s);
915 return;
916 }
917 }
918 splx(s);
919 return;
920}
921
922/*
923 * To obtain XFER structure by transaction label.
924 */
925static struct fw_xfer *
926fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
927{
928 struct fw_xfer *xfer;
929 struct tlabel *tl;
930 int s = splfw();
931
932 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
933 tl = STAILQ_NEXT(tl, link)){
934 if(tl->xfer->dst == node){
935 xfer = tl->xfer;
936 splx(s);
937 if (firewire_debug > 2)
938 printf("fw_tl2xfer: found tl=%d\n", tlabel);
939 return(xfer);
940 }
941 }
942 if (firewire_debug > 1)
943 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
944 splx(s);
945 return(NULL);
946}
947
948/*
949 * To allocate IEEE1394 XFER structure.
950 */
951struct fw_xfer *
952fw_xfer_alloc(struct malloc_type *type)
953{
954 struct fw_xfer *xfer;
955
956 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
957 if (xfer == NULL)
958 return xfer;
959
960 microtime(&xfer->tv);
961 xfer->malloc = type;
962
963 return xfer;
964}
965
966struct fw_xfer *
967fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
968{
969 struct fw_xfer *xfer;
970
971 xfer = fw_xfer_alloc(type);
972 xfer->send.len = send_len;
973 xfer->recv.len = recv_len;
974 if (xfer == NULL)
975 return(NULL);
976 if (send_len) {
977 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO);
978 if (xfer->send.buf == NULL) {
979 fw_xfer_free(xfer);
980 return(NULL);
981 }
982 }
983 if (recv_len) {
984 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT);
985 if (xfer->recv.buf == NULL) {
986 if (xfer->send.buf != NULL)
987 free(xfer->send.buf, type);
988 fw_xfer_free(xfer);
989 return(NULL);
990 }
991 }
992 return(xfer);
993}
994
995/*
996 * IEEE1394 XFER post process.
997 */
998void
999fw_xfer_done(struct fw_xfer *xfer)
1000{
1001 if (xfer->act.hand == NULL) {
1002 printf("act.hand == NULL\n");
1003 return;
1004 }
1005
1006 if (xfer->fc->status != FWBUSRESET)
1007 xfer->act.hand(xfer);
1008 else {
1009 printf("fw_xfer_done: pending\n");
1010 if (xfer->fc != NULL)
1011 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link);
1012 else
1013 panic("fw_xfer_done: why xfer->fc is NULL?");
1014 }
1015}
1016
1017void
1018fw_xfer_unload(struct fw_xfer* xfer)
1019{
1020 int s;
1021
1022 if(xfer == NULL ) return;
1023 if(xfer->state == FWXF_INQ){
1024 printf("fw_xfer_free FWXF_INQ\n");
1025 s = splfw();
1026 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
1027 xfer->q->queued --;
1028 splx(s);
1029 }
1030 if (xfer->fc != NULL) {
1031#if 1
1032 if(xfer->state == FWXF_START)
1033 /*
1034 * This could happen if:
1035 * 1. We call fwohci_arcv() before fwohci_txd().
1036 * 2. firewire_watch() is called.
1037 */
1038 printf("fw_xfer_free FWXF_START\n");
1039#endif
1040 fw_tl_free(xfer->fc, xfer);
1041 }
1042 xfer->state = FWXF_INIT;
1043 xfer->resp = 0;
1044 xfer->retry = 0;
1045}
1046/*
1047 * To free IEEE1394 XFER structure.
1048 */
1049void
1050fw_xfer_free( struct fw_xfer* xfer)
1051{
1052 if(xfer == NULL ) return;
1053 fw_xfer_unload(xfer);
1054 if(xfer->send.buf != NULL){
1055 free(xfer->send.buf, xfer->malloc);
1056 }
1057 if(xfer->recv.buf != NULL){
1058 free(xfer->recv.buf, xfer->malloc);
1059 }
1060 free(xfer, xfer->malloc);
1061}
1062
1063static void
1064fw_asy_callback_free(struct fw_xfer *xfer)
1065{
1066#if 0
1067 printf("asyreq done state=%d resp=%d\n",
1068 xfer->state, xfer->resp);
1069#endif
1070 fw_xfer_free(xfer);
1071}
1072
1073/*
1074 * To configure PHY.
1075 */
1076static void
1077fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
1078{
1079 struct fw_xfer *xfer;
1080 struct fw_pkt *fp;
1081
1082 fc->status = FWBUSPHYCONF;
1083
1084 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0);
1085 if (xfer == NULL)
1086 return;
1087 xfer->fc = fc;
1088 xfer->retry_req = fw_asybusy;
1089 xfer->act.hand = fw_asy_callback_free;
1090
1091 fp = (struct fw_pkt *)xfer->send.buf;
1092 fp->mode.ld[1] = 0;
1093 if (root_node >= 0)
1094 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23;
1095 if (gap_count >= 0)
1096 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16;
1097 fp->mode.ld[2] = ~fp->mode.ld[1];
1098/* XXX Dangerous, how to pass PHY packet to device driver */
1099 fp->mode.common.tcode |= FWTCODE_PHY;
1100
1101 if (firewire_debug)
1102 printf("send phy_config root_node=%d gap_count=%d\n",
1103 root_node, gap_count);
1104 fw_asyreq(fc, -1, xfer);
1105}
1106
1107#if 0
1108/*
1109 * Dump self ID.
1110 */
1111static void
1112fw_print_sid(u_int32_t sid)
1113{
1114 union fw_self_id *s;
1115 s = (union fw_self_id *) &sid;
1116 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1117 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1118 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1119 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1120 s->p0.power_class, s->p0.port0, s->p0.port1,
1121 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1122}
1123#endif
1124
1125/*
1126 * To receive self ID.
1127 */
1128void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len)
1129{
1130 u_int32_t *p;
1131 union fw_self_id *self_id;
1132 u_int i, j, node, c_port = 0, i_branch = 0;
1133
1134 fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
1135 fc->status = FWBUSINIT;
1136 fc->max_node = fc->nodeid & 0x3f;
1137 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
1138 fc->status = FWBUSCYMELECT;
1139 fc->topology_map->crc_len = 2;
1140 fc->topology_map->generation ++;
1141 fc->topology_map->self_id_count = 0;
1142 fc->topology_map->node_count = 0;
1143 fc->speed_map->generation ++;
1144 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1145 self_id = &fc->topology_map->self_id[0];
1146 for(i = 0; i < fc->sid_cnt; i ++){
1147 if (sid[1] != ~sid[0]) {
1148 printf("fw_sidrcv: invalid self-id packet\n");
1149 sid += 2;
1150 continue;
1151 }
1152 *self_id = *((union fw_self_id *)sid);
1153 fc->topology_map->crc_len++;
1154 if(self_id->p0.sequel == 0){
1155 fc->topology_map->node_count ++;
1156 c_port = 0;
1157#if 0
1158 fw_print_sid(sid[0]);
1159#endif
1160 node = self_id->p0.phy_id;
1161 if(fc->max_node < node){
1162 fc->max_node = self_id->p0.phy_id;
1163 }
1164 /* XXX I'm not sure this is the right speed_map */
1165 fc->speed_map->speed[node][node]
1166 = self_id->p0.phy_speed;
1167 for (j = 0; j < node; j ++) {
1168 fc->speed_map->speed[j][node]
1169 = fc->speed_map->speed[node][j]
1170 = min(fc->speed_map->speed[j][j],
1171 self_id->p0.phy_speed);
1172 }
1173 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1174 (self_id->p0.link_active && self_id->p0.contender)) {
1175 fc->irm = self_id->p0.phy_id;
1176 }
1177 if(self_id->p0.port0 >= 0x2){
1178 c_port++;
1179 }
1180 if(self_id->p0.port1 >= 0x2){
1181 c_port++;
1182 }
1183 if(self_id->p0.port2 >= 0x2){
1184 c_port++;
1185 }
1186 }
1187 if(c_port > 2){
1188 i_branch += (c_port - 2);
1189 }
1190 sid += 2;
1191 self_id++;
1192 fc->topology_map->self_id_count ++;
1193 }
1194 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1195 /* CRC */
1196 fc->topology_map->crc = fw_crc16(
1197 (u_int32_t *)&fc->topology_map->generation,
1198 fc->topology_map->crc_len * 4);
1199 fc->speed_map->crc = fw_crc16(
1200 (u_int32_t *)&fc->speed_map->generation,
1201 fc->speed_map->crc_len * 4);
1202 /* byteswap and copy to CSR */
1203 p = (u_int32_t *)fc->topology_map;
1204 for (i = 0; i <= fc->topology_map->crc_len; i++)
1205 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1206 p = (u_int32_t *)fc->speed_map;
1207 CSRARC(fc, SPED_MAP) = htonl(*p++);
1208 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1209 /* don't byte-swap u_int8_t array */
1210 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1211
1212 fc->max_hop = fc->max_node - i_branch;
1213 printf(", maxhop <= %d", fc->max_hop);
1214
1215 if(fc->irm == -1 ){
1216 printf(", Not found IRM capable node");
1217 }else{
1218 printf(", cable IRM = %d", fc->irm);
1219 if (fc->irm == fc->nodeid)
1220 printf(" (me)");
1221 }
1222 printf("\n");
1223
1224 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1225 if (fc->irm == fc->nodeid) {
1226 fc->status = FWBUSMGRDONE;
1227 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1228 fw_bmr(fc);
1229 } else {
1230 fc->status = FWBUSMGRELECT;
1231 callout_reset(&fc->bmr_callout, hz/8,
1232 (void *)fw_try_bmr, (void *)fc);
1233 }
1234 } else
1235 fc->status = FWBUSMGRDONE;
1236
1237 callout_reset(&fc->busprobe_callout, hz/4,
1238 (void *)fw_bus_probe, (void *)fc);
1239}
1240
1241/*
1242 * To probe devices on the IEEE1394 bus.
1243 */
1244static void
1245fw_bus_probe(struct firewire_comm *fc)
1246{
1247 int s;
1248 struct fw_device *fwdev, *next;
1249
1250 s = splfw();
1251 fc->status = FWBUSEXPLORE;
1252 fc->retry_count = 0;
1253
1254/*
1255 * Invalidate all devices, just after bus reset. Devices
1256 * to be removed has not been seen longer time.
1257 */
1258 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1259 next = STAILQ_NEXT(fwdev, link);
1260 if (fwdev->status != FWDEVINVAL) {
1261 fwdev->status = FWDEVINVAL;
1262 fwdev->rcnt = 0;
1263 } else if(fwdev->rcnt < FW_MAXDEVRCNT) {
1264 fwdev->rcnt ++;
1265 } else {
1266 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link);
1267 free(fwdev, M_FW);
1268 }
1269 }
1270 fc->ongonode = 0;
1271 fc->ongoaddr = CSRROMOFF;
1272 fc->ongodev = NULL;
1273 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1274 fw_bus_explore(fc);
1275 splx(s);
1276}
1277
1278/*
1279 * To collect device informations on the IEEE1394 bus.
1280 */
1281static void
1282fw_bus_explore(struct firewire_comm *fc )
1283{
1284 int err = 0;
1285 struct fw_device *fwdev, *pfwdev, *tfwdev;
1286 u_int32_t addr;
1287 struct fw_xfer *xfer;
1288 struct fw_pkt *fp;
1289
1290 if(fc->status != FWBUSEXPLORE)
1291 return;
1292
1293loop:
1294 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1295
1296 if(fc->ongonode > fc->max_node) goto done;
1297 if(fc->ongonode >= 0x3f) goto done;
1298
1299 /* check link */
1300 /* XXX we need to check phy_id first */
1301 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
1302 if (firewire_debug)
1303 printf("node%d: link down\n", fc->ongonode);
1304 fc->ongonode++;
1305 goto loop;
1306 }
1307
1308 if(fc->ongoaddr <= CSRROMOFF &&
1309 fc->ongoeui.hi == 0xffffffff &&
1310 fc->ongoeui.lo == 0xffffffff ){
1311 fc->ongoaddr = CSRROMOFF;
1312 addr = 0xf0000000 | fc->ongoaddr;
1313 }else if(fc->ongoeui.hi == 0xffffffff ){
1314 fc->ongoaddr = CSRROMOFF + 0xc;
1315 addr = 0xf0000000 | fc->ongoaddr;
1316 }else if(fc->ongoeui.lo == 0xffffffff ){
1317 fc->ongoaddr = CSRROMOFF + 0x10;
1318 addr = 0xf0000000 | fc->ongoaddr;
1319 }else if(fc->ongodev == NULL){
1320 STAILQ_FOREACH(fwdev, &fc->devices, link)
1321 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1322 break;
1323 if(fwdev != NULL){
1324 fwdev->dst = fc->ongonode;
1325 fwdev->status = FWDEVINIT;
1326 fc->ongodev = fwdev;
1327 fc->ongoaddr = CSRROMOFF;
1328 addr = 0xf0000000 | fc->ongoaddr;
1329 goto dorequest;
1330 }
1331 fwdev = malloc(sizeof(struct fw_device), M_FW,
1332 M_NOWAIT | M_ZERO);
1333 if(fwdev == NULL)
1334 return;
1335 fwdev->fc = fc;
1336 fwdev->rommax = 0;
1337 fwdev->dst = fc->ongonode;
1338 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1339 fwdev->status = FWDEVINIT;
1340 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1341
1342 pfwdev = NULL;
1343 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1344 if (tfwdev->eui.hi > fwdev->eui.hi ||
1345 (tfwdev->eui.hi == fwdev->eui.hi &&
1346 tfwdev->eui.lo > fwdev->eui.lo))
1347 break;
1348 pfwdev = tfwdev;
1349 }
1350 if (pfwdev == NULL)
1351 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1352 else
1353 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1354
1355 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1356 linkspeed[fwdev->speed],
1357 fc->ongoeui.hi, fc->ongoeui.lo);
1358
1359 fc->ongodev = fwdev;
1360 fc->ongoaddr = CSRROMOFF;
1361 addr = 0xf0000000 | fc->ongoaddr;
1362 }else{
1363 addr = 0xf0000000 | fc->ongoaddr;
1364 }
1365dorequest:
1366#if 0
1367 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1368 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1369 fw_bus_explore_callback);
1370 if(xfer == NULL) goto done;
1371#else
1372 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16);
1373 if(xfer == NULL){
1374 goto done;
1375 }
1376 xfer->spd = 0;
1377 fp = (struct fw_pkt *)xfer->send.buf;
1378 fp->mode.rreqq.dest_hi = 0xffff;
1379 fp->mode.rreqq.tlrt = 0;
1380 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1381 fp->mode.rreqq.pri = 0;
1382 fp->mode.rreqq.src = 0;
1383 xfer->dst = FWLOCALBUS | fc->ongonode;
1384 fp->mode.rreqq.dst = xfer->dst;
1385 fp->mode.rreqq.dest_lo = addr;
1386 xfer->act.hand = fw_bus_explore_callback;
1387
1388 if (firewire_debug)
1389 printf("node%d: explore addr=0x%x\n",
1390 fc->ongonode, fc->ongoaddr);
1391 err = fw_asyreq(fc, -1, xfer);
1392 if(err){
1393 fw_xfer_free( xfer);
1394 return;
1395 }
1396#endif
1397 return;
1398done:
1399 /* fw_attach_devs */
1400 fc->status = FWBUSEXPDONE;
1401 if (firewire_debug)
1402 printf("bus_explore done\n");
1403 fw_attach_dev(fc);
1404 return;
1405
1406}
1407
1408/* Portable Async. request read quad */
1409struct fw_xfer *
1410asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt,
1411 u_int32_t addr_hi, u_int32_t addr_lo,
1412 void (*hand) __P((struct fw_xfer*)))
1413{
1414 struct fw_xfer *xfer;
1415 struct fw_pkt *fp;
1416 int err;
1417
1418 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16);
1419 if (xfer == NULL)
1420 return NULL;
1421
1422 xfer->spd = spd; /* XXX:min(spd, fc->spd) */
1423 fp = (struct fw_pkt *)xfer->send.buf;
1424 fp->mode.rreqq.dest_hi = addr_hi & 0xffff;
1425 if(tl & FWP_TL_VALID){
1426 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1427 }else{
1428 fp->mode.rreqq.tlrt = 0;
1429 }
1430 fp->mode.rreqq.tlrt |= rt & 0x3;
1431 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1432 fp->mode.rreqq.pri = 0;
1433 fp->mode.rreqq.src = 0;
1434 xfer->dst = addr_hi >> 16;
1435 fp->mode.rreqq.dst = xfer->dst;
1436 fp->mode.rreqq.dest_lo = addr_lo;
1437 xfer->act.hand = hand;
1438
1439 err = fw_asyreq(fc, -1, xfer);
1440 if(err){
1441 fw_xfer_free( xfer);
1442 return NULL;
1443 }
1444 return xfer;
1445}
1446
1447/*
1448 * Callback for the IEEE1394 bus information collection.
1449 */
1450static void
1451fw_bus_explore_callback(struct fw_xfer *xfer)
1452{
1453 struct firewire_comm *fc;
1454 struct fw_pkt *sfp,*rfp;
1455 struct csrhdr *chdr;
1456 struct csrdir *csrd;
1457 struct csrreg *csrreg;
1458 u_int32_t offset;
1459
1460
1461 if(xfer == NULL) {
1462 printf("xfer == NULL\n");
1463 return;
1464 }
1465 fc = xfer->fc;
1466
1467 if (firewire_debug)
1468 printf("node%d: callback addr=0x%x\n",
1469 fc->ongonode, fc->ongoaddr);
1470
1471 if(xfer->resp != 0){
1472 printf("node%d: resp=%d addr=0x%x\n",
1473 fc->ongonode, xfer->resp, fc->ongoaddr);
1474 goto errnode;
1475 }
1476
1477 if(xfer->send.buf == NULL){
1478 printf("node%d: send.buf=NULL addr=0x%x\n",
1479 fc->ongonode, fc->ongoaddr);
1480 goto errnode;
1481 }
1482 sfp = (struct fw_pkt *)xfer->send.buf;
1483
1484 if(xfer->recv.buf == NULL){
1485 printf("node%d: recv.buf=NULL addr=0x%x\n",
1486 fc->ongonode, fc->ongoaddr);
1487 goto errnode;
1488 }
1489 rfp = (struct fw_pkt *)xfer->recv.buf;
1490#if 0
1491 {
1492 u_int32_t *qld;
1493 int i;
1494 qld = (u_int32_t *)xfer->recv.buf;
1495 printf("len:%d\n", xfer->recv.len);
1496 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1497 printf("0x%08x ", rfp->mode.ld[i/4]);
1498 if((i % 16) == 15) printf("\n");
1499 }
1500 if((i % 16) != 15) printf("\n");
1501 }
1502#endif
1503 if(fc->ongodev == NULL){
1504 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){
1505 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1506 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1507/* If CSR is minimal confinguration, more investgation is not needed. */
1508 if(chdr->info_len == 1){
1509 if (firewire_debug)
1510 printf("node%d: minimal config\n",
1511 fc->ongonode);
1512 goto nextnode;
1513 }else{
1514 fc->ongoaddr = CSRROMOFF + 0xc;
1515 }
1516 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){
1517 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1518 fc->ongoaddr = CSRROMOFF + 0x10;
1519 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){
1520 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1521 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1522 if (firewire_debug)
1523 printf("node%d: eui64 is zero.\n",
1524 fc->ongonode);
1525 goto nextnode;
1526 }
1527 fc->ongoaddr = CSRROMOFF;
1528 }
1529 }else{
1530 if (fc->ongoaddr == CSRROMOFF &&
1531 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) {
1532 fc->ongodev->status = FWDEVATTACHED;
1533 goto nextnode;
1534 }
1535 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1536 if(fc->ongoaddr > fc->ongodev->rommax){
1537 fc->ongodev->rommax = fc->ongoaddr;
1538 }
1539 csrd = SLIST_FIRST(&fc->ongocsr);
1540 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1541 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1542 offset = CSRROMOFF;
1543 }else{
1544 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1545 offset = csrd->off;
1546 }
1547 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1548 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1549 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1550 csrd = SLIST_FIRST(&fc->csrfree);
1551 if(csrd == NULL){
1552 goto nextnode;
1553 }else{
1554 csrd->ongoaddr = fc->ongoaddr;
1555 fc->ongoaddr += csrreg->val * 4;
1556 csrd->off = fc->ongoaddr;
1557 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1558 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1559 goto nextaddr;
1560 }
1561 }
1562 }
1563 fc->ongoaddr += 4;
1564 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1565 (fc->ongodev->rommax < 0x414)){
1566 if(fc->ongodev->rommax <= 0x414){
1567 csrd = SLIST_FIRST(&fc->csrfree);
1568 if(csrd == NULL) goto nextnode;
1569 csrd->off = fc->ongoaddr;
1570 csrd->ongoaddr = fc->ongoaddr;
1571 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1572 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1573 }
1574 goto nextaddr;
1575 }
1576
1577 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1578 if(csrd == NULL){
1579 goto nextnode;
1580 };
1581 fc->ongoaddr = csrd->ongoaddr + 4;
1582 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1583 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1584 csrd = SLIST_FIRST(&fc->ongocsr);
1585 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1586 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1587 offset = CSRROMOFF;
1588 }else{
1589 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1590 offset = csrd->off;
1591 }
1592 }
1593 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1594 goto nextnode;
1595 }
1596 }
1597nextaddr:
1598 fw_xfer_free( xfer);
1599 fw_bus_explore(fc);
1600 return;
1601errnode:
1602 fc->retry_count++;
1603 if (fc->ongodev != NULL)
1604 fc->ongodev->status = FWDEVINVAL;
1605nextnode:
1606 fw_xfer_free( xfer);
1607 fc->ongonode++;
1608/* housekeeping work space */
1609 fc->ongoaddr = CSRROMOFF;
1610 fc->ongodev = NULL;
1611 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1612 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1613 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1614 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1615 }
1616 fw_bus_explore(fc);
1617 return;
1618}
1619
1620/*
1621 * To attach sub-devices layer onto IEEE1394 bus.
1622 */
1623static void
1624fw_attach_dev(struct firewire_comm *fc)
1625{
1626 struct fw_device *fwdev;
1627 struct fw_xfer *xfer;
1628 int i, err;
1629 device_t *devlistp;
1630 int devcnt;
1631 struct firewire_dev_comm *fdc;
1632
1633 STAILQ_FOREACH(fwdev, &fc->devices, link)
1634 if (fwdev->status == FWDEVINIT)
1635 fwdev->status = FWDEVATTACHED;
1636
1637 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1638 if( err != 0 )
1639 return;
1640 for( i = 0 ; i < devcnt ; i++){
1641 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1642 fdc = device_get_softc(devlistp[i]);
1643 if (fdc->post_explore != NULL)
1644 fdc->post_explore(fdc);
1645 }
1646 }
1647 free(devlistp, M_TEMP);
1648
1649 /* call pending handlers */
1650 i = 0;
1651 while ((xfer = STAILQ_FIRST(&fc->pending))) {
1652 STAILQ_REMOVE_HEAD(&fc->pending, link);
1653 i++;
1654 if (xfer->act.hand)
1655 xfer->act.hand(xfer);
1656 }
1657 if (i > 0)
1658 printf("fw_attach_dev: %d pending handlers called\n", i);
1659 if (fc->retry_count > 0) {
1660 printf("probe failed for %d node\n", fc->retry_count);
1661#if 0
1662 callout_reset(&fc->retry_probe_callout, hz*2,
1663 (void *)fc->ibr, (void *)fc);
1664#endif
1665 }
1666 return;
1667}
1668
1669/*
1670 * To allocate uniq transaction label.
1671 */
1672static int
1673fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1674{
1675 u_int i;
1676 struct tlabel *tl, *tmptl;
1677 int s;
1678 static u_int32_t label = 0;
1679
1680 s = splfw();
1681 for( i = 0 ; i < 0x40 ; i ++){
1682 label = (label + 1) & 0x3f;
1683 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1684 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1685 if(tmptl->xfer->dst == xfer->dst) break;
1686 }
1687 if(tmptl == NULL) {
1688 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT);
1689 if (tl == NULL) {
1690 splx(s);
1691 return (-1);
1692 }
1693 tl->xfer = xfer;
1694 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1695 splx(s);
1696 if (firewire_debug > 1)
1697 printf("fw_get_tlabel: dst=%d tl=%d\n",
1698 xfer->dst, label);
1699 return(label);
1700 }
1701 }
1702 splx(s);
1703
1704 printf("fw_get_tlabel: no free tlabel\n");
1705 return(-1);
1706}
1707
1708static void
1709fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec)
1710{
1711 char *p;
1712 int res, i, len;
1713
1714 p = xfer->recv.buf;
1715 res = xfer->recv.len;
1716 for (i = 0; i < nvec; i++, vec++) {
1717 len = vec->iov_len;
1718 if (res < len) {
1719 printf("rcv buffer(%d) is %d bytes short.\n",
1720 xfer->recv.len, len - res);
1721 len = res;
1722 }
1723 bcopy(vec->iov_base, p, len);
1724 p += len;
1725 res -= len;
1726 if (res <= 0)
1727 break;
1728 }
1729 xfer->recv.len -= res;
1730}
1731
1732/*
1733 * Generic packet receving process.
1734 */
1735void
1736fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd)
1737{
1738 struct fw_pkt *fp, *resfp;
1739 struct fw_xfer *xfer;
1740 struct fw_bind *bind;
1741 struct firewire_softc *sc;
1742 int tcode, s;
1743 int i, len, oldstate;
1744#if 0
1745 {
1746 u_int32_t *qld;
1747 int i;
1748 qld = (u_int32_t *)buf;
1749 printf("spd %d len:%d\n", spd, len);
1750 for( i = 0 ; i <= len && i < 32; i+= 4){
1751 printf("0x%08x ", ntohl(qld[i/4]));
1752 if((i % 16) == 15) printf("\n");
1753 }
1754 if((i % 16) != 15) printf("\n");
1755 }
1756#endif
1757 fp = (struct fw_pkt *)vec[0].iov_base;
1758 tcode = fp->mode.common.tcode;
1759#if 0 /* XXX this check is not valid for RRESQ and WREQQ */
1760 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) {
1761#if __FreeBSD_version >= 500000
1762 printf("fw_rcv: iov_len(%zu) is less than"
1763#else
1764 printf("fw_rcv: iov_len(%u) is less than"
1765#endif
1766 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len,
1767 fc->tcode[tcode].hdr_len, tcode);
1768 }
1769#endif
1770 switch (tcode) {
1771 case FWTCODE_WRES:
1772 case FWTCODE_RRESQ:
1773 case FWTCODE_RRESB:
1774 case FWTCODE_LRES:
1775 xfer = fw_tl2xfer(fc, fp->mode.hdr.src,
1776 fp->mode.hdr.tlrt >> 2);
1777 if(xfer == NULL) {
1778 printf("fw_rcv: unknown response "
1779 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n",
1780 tcode,
1781 fp->mode.hdr.src,
1782 fp->mode.hdr.tlrt >> 2,
1783 fp->mode.hdr.tlrt & 3,
1784 fp->mode.rresq.data);
1785#if 1
1786 printf("try ad-hoc work around!!\n");
1787 xfer = fw_tl2xfer(fc, fp->mode.hdr.src,
1788 (fp->mode.hdr.tlrt >> 2)^3);
1789 if (xfer == NULL) {
1790 printf("no use...\n");
1791 goto err;
1792 }
1793#else
1794 goto err;
1795#endif
1796 }
1797 fw_rcv_copy(xfer, vec, nvec);
1798 xfer->resp = 0;
1799 /* make sure the packet is drained in AT queue */
1800 oldstate = xfer->state;
1801 xfer->state = FWXF_RCVD;
1802 switch (oldstate) {
1803 case FWXF_SENT:
1804 fw_xfer_done(xfer);
1805 break;
1806 case FWXF_START:
1807 if (firewire_debug)
1808 printf("not sent yet tl=%x\n", xfer->tl);
1809 break;
1810 default:
1811 printf("unexpected state %d\n", xfer->state);
1812 }
1813 return;
1814 case FWTCODE_WREQQ:
1815 case FWTCODE_WREQB:
1816 case FWTCODE_RREQQ:
1817 case FWTCODE_RREQB:
1818 case FWTCODE_LREQ:
1819 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi,
1820 fp->mode.rreqq.dest_lo);
1821 if(bind == NULL){
1822#if __FreeBSD_version >= 500000
1823 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n",
1824#else
1825 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n",
1826#endif
1827 fp->mode.wreqq.dest_hi,
1828 fp->mode.wreqq.dest_lo,
1829 tcode,
1830 fp->mode.hdr.src,
1831 ntohl(fp->mode.wreqq.data));
1832 if (fc->status == FWBUSRESET) {
1833 printf("fw_rcv: cannot respond(bus reset)!\n");
1834 goto err;
1835 }
1836 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0);
1837 if(xfer == NULL){
1838 return;
1839 }
1840 xfer->spd = spd;
1841 resfp = (struct fw_pkt *)xfer->send.buf;
1842 switch (tcode) {
1843 case FWTCODE_WREQQ:
1844 case FWTCODE_WREQB:
1845 resfp->mode.hdr.tcode = FWTCODE_WRES;
1846 xfer->send.len = 12;
1847 break;
1848 case FWTCODE_RREQQ:
1849 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1850 xfer->send.len = 16;
1851 break;
1852 case FWTCODE_RREQB:
1853 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1854 xfer->send.len = 16;
1855 break;
1856 case FWTCODE_LREQ:
1857 resfp->mode.hdr.tcode = FWTCODE_LRES;
1858 xfer->send.len = 16;
1859 break;
1860 }
1861 resfp->mode.hdr.dst = fp->mode.hdr.src;
1862 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1863 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1864 resfp->mode.rresb.rtcode = 7;
1865 resfp->mode.rresb.extcode = 0;
1866 resfp->mode.rresb.len = 0;
1867/*
1868 xfer->act.hand = fw_asy_callback;
1869*/
1870 xfer->act.hand = fw_xfer_free;
1871 if(fw_asyreq(fc, -1, xfer)){
1872 fw_xfer_free( xfer);
1873 return;
1874 }
1875 goto err;
1876 }
1877 len = 0;
1878 for (i = 0; i < nvec; i ++)
1879 len += vec[i].iov_len;
1880 switch(bind->act_type){
1881 case FWACT_XFER:
1882 /* splfw()?? */
1883 xfer = STAILQ_FIRST(&bind->xferlist);
1884 if (xfer == NULL) {
1885 printf("Discard a packet for this bind.\n");
1886 goto err;
1887 }
1888 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1889 fw_rcv_copy(xfer, vec, nvec);
1890 xfer->spd = spd;
1891 if (fc->status != FWBUSRESET)
1892 xfer->act.hand(xfer);
1893 else
1894 STAILQ_INSERT_TAIL(&fc->pending, xfer, link);
1895 return;
1896 break;
1897 case FWACT_CH:
1898 if(fc->ir[bind->sub]->queued >=
1899 fc->ir[bind->sub]->maxq){
1900 device_printf(fc->bdev,
1901 "Discard a packet %x %d\n",
1902 bind->sub,
1903 fc->ir[bind->sub]->queued);
1904 goto err;
1905 }
1906 xfer = STAILQ_FIRST(&bind->xferlist);
1907 if (xfer == NULL) {
1908 printf("Discard packet for this bind\n");
1909 goto err;
1910 }
1911 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1912 fw_rcv_copy(xfer, vec, nvec);
1913 xfer->spd = spd;
1914 s = splfw();
1915 fc->ir[bind->sub]->queued++;
1916 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link);
1917 splx(s);
1918
1919 wakeup((caddr_t)fc->ir[bind->sub]);
1920
1921 return;
1922 break;
1923 default:
1924 goto err;
1925 break;
1926 }
1927 break;
1928 case FWTCODE_STREAM:
1929 {
1930 struct fw_xferq *xferq;
1931
1932 xferq = fc->ir[sub];
1933#if 0
1934 printf("stream rcv dma %d len %d off %d spd %d\n",
1935 sub, len, off, spd);
1936#endif
1937 if(xferq->queued >= xferq->maxq) {
1938 printf("receive queue is full\n");
1939 goto err;
1940 }
1941 /* XXX get xfer from xfer queue, we don't need copy for
1942 per packet mode */
1943 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
1944 vec[0].iov_len);
1945 if(xfer == NULL) goto err;
1946 fw_rcv_copy(xfer, vec, nvec);
1947 xfer->spd = spd;
1948 s = splfw();
1949 xferq->queued++;
1950 STAILQ_INSERT_TAIL(&xferq->q, xfer, link);
1951 splx(s);
1952 sc = device_get_softc(fc->bdev);
1953#if __FreeBSD_version >= 500000
1954 if (SEL_WAITING(&xferq->rsel))
1955#else
1956 if (&xferq->rsel.si_pid != 0)
1957#endif
1958 selwakeup(&xferq->rsel);
1959 if (xferq->flag & FWXFERQ_WAKEUP) {
1960 xferq->flag &= ~FWXFERQ_WAKEUP;
1961 wakeup((caddr_t)xferq);
1962 }
1963 if (xferq->flag & FWXFERQ_HANDLER) {
1964 xferq->hand(xferq);
1965 }
1966 return;
1967 break;
1968 }
1969 default:
1970 printf("fw_rcv: unknow tcode %d\n", tcode);
1971 break;
1972 }
1973err:
1974 return;
1975}
1976
1977/*
1978 * Post process for Bus Manager election process.
1979 */
1980static void
1981fw_try_bmr_callback(struct fw_xfer *xfer)
1982{
1983 struct fw_pkt *rfp;
1984 struct firewire_comm *fc;
1985 int bmr;
1986
1987 if (xfer == NULL)
1988 return;
1989 fc = xfer->fc;
1990 if (xfer->resp != 0)
1991 goto error;
1992 if (xfer->send.buf == NULL)
1993 goto error;
1994 if (xfer->recv.buf == NULL)
1995 goto error;
1996 rfp = (struct fw_pkt *)xfer->recv.buf;
1997 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE)
1998 goto error;
1999
2000 bmr = ntohl(rfp->mode.lres.payload[0]);
2001 if (bmr == 0x3f)
2002 bmr = fc->nodeid;
2003
2004 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
2005 fw_xfer_free(xfer);
2006 fw_bmr(fc);
2007 return;
2008
2009error:
2010 device_printf(fc->bdev, "bus manager election failed\n");
2011 fw_xfer_free(xfer);
2012}
2013
2014
2015/*
2016 * To candidate Bus Manager election process.
2017 */
2018static void
2019fw_try_bmr(void *arg)
2020{
2021 struct fw_xfer *xfer;
2022 struct firewire_comm *fc = (struct firewire_comm *)arg;
2023 struct fw_pkt *fp;
2024 int err = 0;
2025
2026 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20);
2027 if(xfer == NULL){
2028 return;
2029 }
2030 xfer->spd = 0;
2031 fc->status = FWBUSMGRELECT;
2032
2033 fp = (struct fw_pkt *)xfer->send.buf;
2034 fp->mode.lreq.dest_hi = 0xffff;
2035 fp->mode.lreq.tlrt = 0;
2036 fp->mode.lreq.tcode = FWTCODE_LREQ;
2037 fp->mode.lreq.pri = 0;
2038 fp->mode.lreq.src = 0;
2039 fp->mode.lreq.len = 8;
2040 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP;
2041 xfer->dst = FWLOCALBUS | fc->irm;
2042 fp->mode.lreq.dst = xfer->dst;
2043 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
2044 fp->mode.lreq.payload[0] = htonl(0x3f);
2045 fp->mode.lreq.payload[1] = htonl(fc->nodeid);
2046 xfer->act.hand = fw_try_bmr_callback;
2047
2048 err = fw_asyreq(fc, -1, xfer);
2049 if(err){
2050 fw_xfer_free( xfer);
2051 return;
2052 }
2053 return;
2054}
2055
2056#ifdef FW_VMACCESS
2057/*
2058 * Software implementation for physical memory block access.
2059 * XXX:Too slow, usef for debug purpose only.
2060 */
2061static void
2062fw_vmaccess(struct fw_xfer *xfer){
2063 struct fw_pkt *rfp, *sfp = NULL;
2064 u_int32_t *ld = (u_int32_t *)xfer->recv.buf;
2065
2066 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
2067 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2068 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2069 if(xfer->resp != 0){
2070 fw_xfer_free( xfer);
2071 return;
2072 }
2073 if(xfer->recv.buf == NULL){
2074 fw_xfer_free( xfer);
2075 return;
2076 }
2077 rfp = (struct fw_pkt *)xfer->recv.buf;
2078 switch(rfp->mode.hdr.tcode){
2079 /* XXX need fix for 64bit arch */
2080 case FWTCODE_WREQB:
2081 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2082 xfer->send.len = 12;
2083 sfp = (struct fw_pkt *)xfer->send.buf;
2084 bcopy(rfp->mode.wreqb.payload,
2085 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2086 sfp->mode.wres.tcode = FWTCODE_WRES;
2087 sfp->mode.wres.rtcode = 0;
2088 break;
2089 case FWTCODE_WREQQ:
2090 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2091 xfer->send.len = 12;
2092 sfp->mode.wres.tcode = FWTCODE_WRES;
2093 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2094 sfp->mode.wres.rtcode = 0;
2095 break;
2096 case FWTCODE_RREQB:
2097 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2098 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2099 sfp = (struct fw_pkt *)xfer->send.buf;
2100 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2101 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
2102 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2103 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2104 sfp->mode.rresb.rtcode = 0;
2105 sfp->mode.rresb.extcode = 0;
2106 break;
2107 case FWTCODE_RREQQ:
2108 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2109 xfer->send.len = 16;
2110 sfp = (struct fw_pkt *)xfer->send.buf;
2111 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2112 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2113 sfp->mode.rresb.rtcode = 0;
2114 break;
2115 default:
2116 fw_xfer_free( xfer);
2117 return;
2118 }
2119 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2120 xfer->dst = ntohs(rfp->mode.hdr.src);
2121 xfer->act.hand = fw_xfer_free;
2122 xfer->retry_req = fw_asybusy;
2123
2124 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2125 sfp->mode.hdr.pri = 0;
2126
2127 fw_asyreq(xfer->fc, -1, xfer);
2128/**/
2129 return;
2130}
2131#endif
2132
2133/*
2134 * CRC16 check-sum for IEEE1394 register blocks.
2135 */
2136u_int16_t
2137fw_crc16(u_int32_t *ptr, u_int32_t len){
2138 u_int32_t i, sum, crc = 0;
2139 int shift;
2140 len = (len + 3) & ~3;
2141 for(i = 0 ; i < len ; i+= 4){
2142 for( shift = 28 ; shift >= 0 ; shift -= 4){
2143 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2144 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2145 }
2146 crc &= 0xffff;
2147 }
2148 return((u_int16_t) crc);
2149}
2150
2151static int
2152fw_bmr(struct firewire_comm *fc)
2153{
2154 struct fw_device fwdev;
2155 union fw_self_id *self_id;
2156 int cmstr;
2157
2158 /* Check to see if the current root node is cycle master capable */
2159 self_id = &fc->topology_map->self_id[fc->max_node];
2160 if (fc->max_node > 0) {
2161 /* XXX check cmc bit of businfo block rather than contender */
2162 if (self_id->p0.link_active && self_id->p0.contender)
2163 cmstr = fc->max_node;
2164 else {
2165 device_printf(fc->bdev,
2166 "root node is not cycle master capable\n");
2167 /* XXX shall we be the cycle master? */
2168 cmstr = fc->nodeid;
2169 /* XXX need bus reset */
2170 }
2171 } else
2172 cmstr = -1;
2173
2174 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID));
2175 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
2176 /* We are not the bus manager */
2177 printf("\n");
2178 return(0);
2179 }
2180 printf("(me)\n");
2181
2182 /* Optimize gapcount */
2183 if(fc->max_hop <= MAX_GAPHOP )
2184 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
2185 /* If we are the cycle master, nothing to do */
2186 if (cmstr == fc->nodeid || cmstr == -1)
2187 return 0;
2188 /* Bus probe has not finished, make dummy fwdev for cmstr */
2189 bzero(&fwdev, sizeof(fwdev));
2190 fwdev.fc = fc;
2191 fwdev.dst = cmstr;
2192 fwdev.speed = 0;
2193 fwdev.maxrec = 8; /* 512 */
2194 fwdev.status = FWDEVINIT;
2195 /* Set cmstr bit on the cycle master */
2196 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2197 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 8),
2198 fw_asy_callback_free);
2199
2200 return 0;
2201}
2202
2203DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0);
2204MODULE_VERSION(firewire, 1);
| 41
42#include <sys/kernel.h>
43#include <sys/malloc.h>
44#include <sys/conf.h>
45#include <sys/sysctl.h>
46
47#if __FreeBSD_version < 500000
48#include <machine/clock.h> /* for DELAY() */
49#endif
50
51#include <sys/bus.h> /* used by smbus and newbus */
52#include <machine/bus.h>
53
54#include <dev/firewire/firewire.h>
55#include <dev/firewire/firewirereg.h>
56#include <dev/firewire/fwmem.h>
57#include <dev/firewire/iec13213.h>
58#include <dev/firewire/iec68113.h>
59
60struct crom_src_buf {
61 struct crom_src src;
62 struct crom_chunk root;
63 struct crom_chunk vendor;
64 struct crom_chunk hw;
65};
66
67int firewire_debug=0, try_bmr=1;
68SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
69 "FireWire driver debug flag");
70SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
71SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
72 "Try to be a bus manager");
73
74MALLOC_DEFINE(M_FW, "firewire", "FireWire");
75MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
76
77#define FW_MAXASYRTY 4
78#define FW_MAXDEVRCNT 4
79
80devclass_t firewire_devclass;
81
82static int firewire_match __P((device_t));
83static int firewire_attach __P((device_t));
84static int firewire_detach __P((device_t));
85static int firewire_resume __P((device_t));
86#if 0
87static int firewire_shutdown __P((device_t));
88#endif
89static device_t firewire_add_child __P((device_t, int, const char *, int));
90static void fw_try_bmr __P((void *));
91static void fw_try_bmr_callback __P((struct fw_xfer *));
92static void fw_asystart __P((struct fw_xfer *));
93static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *));
94static void fw_bus_probe __P((struct firewire_comm *));
95static void fw_bus_explore __P((struct firewire_comm *));
96static void fw_bus_explore_callback __P((struct fw_xfer *));
97static void fw_attach_dev __P((struct firewire_comm *));
98#ifdef FW_VMACCESS
99static void fw_vmaccess __P((struct fw_xfer *));
100#endif
101struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t,
102 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *))));
103static int fw_bmr __P((struct firewire_comm *));
104
105static device_method_t firewire_methods[] = {
106 /* Device interface */
107 DEVMETHOD(device_probe, firewire_match),
108 DEVMETHOD(device_attach, firewire_attach),
109 DEVMETHOD(device_detach, firewire_detach),
110 DEVMETHOD(device_suspend, bus_generic_suspend),
111 DEVMETHOD(device_resume, firewire_resume),
112 DEVMETHOD(device_shutdown, bus_generic_shutdown),
113
114 /* Bus interface */
115 DEVMETHOD(bus_add_child, firewire_add_child),
116 DEVMETHOD(bus_print_child, bus_generic_print_child),
117
118 { 0, 0 }
119};
120char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"};
121
122/* IEEE-1394a Table C-2 Gap count as a function of hops*/
123#define MAX_GAPHOP 15
124u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
125 21, 24, 26, 29, 32, 35, 37, 40};
126
127extern struct cdevsw firewire_cdevsw;
128
129static driver_t firewire_driver = {
130 "firewire",
131 firewire_methods,
132 sizeof(struct firewire_softc),
133};
134
135/*
136 * Lookup fwdev by node id.
137 */
138struct fw_device *
139fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
140{
141 struct fw_device *fwdev;
142 int s;
143
144 s = splfw();
145 STAILQ_FOREACH(fwdev, &fc->devices, link)
146 if (fwdev->dst == dst)
147 break;
148 splx(s);
149
150 if(fwdev == NULL) return NULL;
151 if(fwdev->status == FWDEVINVAL) return NULL;
152 return fwdev;
153}
154
155/*
156 * Lookup fwdev by EUI64.
157 */
158struct fw_device *
159fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
160{
161 struct fw_device *fwdev;
162 int s;
163
164 s = splfw();
165 STAILQ_FOREACH(fwdev, &fc->devices, link)
166 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
167 break;
168 splx(s);
169
170 if(fwdev == NULL) return NULL;
171 if(fwdev->status == FWDEVINVAL) return NULL;
172 return fwdev;
173}
174
175/*
176 * Async. request procedure for userland application.
177 */
178int
179fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
180{
181 int err = 0;
182 struct fw_xferq *xferq;
183 int tl = 0, len;
184 struct fw_pkt *fp;
185 int tcode;
186 struct tcode_info *info;
187
188 if(xfer == NULL) return EINVAL;
189 if(xfer->send.len > MAXREC(fc->maxrec)){
190 printf("send.len > maxrec\n");
191 return EINVAL;
192 }
193 if(xfer->act.hand == NULL){
194 printf("act.hand == NULL\n");
195 return EINVAL;
196 }
197 fp = (struct fw_pkt *)xfer->send.buf;
198
199 tcode = fp->mode.common.tcode & 0xf;
200 info = &fc->tcode[tcode];
201 if (info->flag == 0) {
202 printf("invalid tcode=%d\n", tcode);
203 return EINVAL;
204 }
205 if (info->flag & FWTI_REQ)
206 xferq = fc->atq;
207 else
208 xferq = fc->ats;
209 len = info->hdr_len;
210 if (info->flag & FWTI_BLOCK_STR)
211 len += fp->mode.stream.len;
212 else if (info->flag & FWTI_BLOCK_ASY)
213 len += fp->mode.rresb.len;
214 if( len > xfer->send.len ){
215 printf("len(%d) > send.len(%d) (tcode=%d)\n",
216 len, xfer->send.len, tcode);
217 return EINVAL;
218 }
219 xfer->send.len = len;
220
221 if(xferq->start == NULL){
222 printf("xferq->start == NULL\n");
223 return EINVAL;
224 }
225 if(!(xferq->queued < xferq->maxq)){
226 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
227 xferq->queued);
228 return EINVAL;
229 }
230
231
232 if (info->flag & FWTI_TLABEL) {
233 if((tl = fw_get_tlabel(fc, xfer)) == -1 )
234 return EIO;
235 fp->mode.hdr.tlrt = tl << 2;
236 }
237
238 xfer->tl = tl;
239 xfer->resp = 0;
240 xfer->fc = fc;
241 xfer->q = xferq;
242 xfer->retry_req = fw_asybusy;
243
244 fw_asystart(xfer);
245 return err;
246}
247/*
248 * Wakeup blocked process.
249 */
250void
251fw_asy_callback(struct fw_xfer *xfer){
252 wakeup(xfer);
253 return;
254}
255/*
256 * Postpone to later retry.
257 */
258void fw_asybusy(struct fw_xfer *xfer){
259 printf("fw_asybusy\n");
260/*
261 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
262*/
263 DELAY(20000);
264 fw_asystart(xfer);
265 return;
266}
267
268/*
269 * Async. request with given xfer structure.
270 */
271static void
272fw_asystart(struct fw_xfer *xfer)
273{
274 struct firewire_comm *fc = xfer->fc;
275 int s;
276 if(xfer->retry++ >= fc->max_asyretry){
277 device_printf(fc->bdev, "max_asyretry exceeded\n");
278 xfer->resp = EBUSY;
279 xfer->state = FWXF_BUSY;
280 xfer->act.hand(xfer);
281 return;
282 }
283#if 0 /* XXX allow bus explore packets only after bus rest */
284 if (fc->status < FWBUSEXPLORE) {
285 xfer->resp = EAGAIN;
286 xfer->state = FWXF_BUSY;
287 if (xfer->act.hand != NULL)
288 xfer->act.hand(xfer);
289 return;
290 }
291#endif
292 s = splfw();
293 xfer->state = FWXF_INQ;
294 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
295 xfer->q->queued ++;
296 splx(s);
297 /* XXX just queue for mbuf */
298 if (xfer->mbuf == NULL)
299 xfer->q->start(fc);
300 return;
301}
302
303static int
304firewire_match( device_t dev )
305{
306 device_set_desc(dev, "IEEE1394(FireWire) bus");
307 return -140;
308}
309
310static void
311firewire_xfer_timeout(struct firewire_comm *fc)
312{
313 struct fw_xfer *xfer;
314 struct tlabel *tl;
315 struct timeval tv;
316 struct timeval split_timeout;
317 int i, s;
318
319 split_timeout.tv_sec = 6;
320 split_timeout.tv_usec = 0;
321
322 microtime(&tv);
323 timevalsub(&tv, &split_timeout);
324
325 s = splfw();
326 for (i = 0; i < 0x40; i ++) {
327 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
328 xfer = tl->xfer;
329 if (timevalcmp(&xfer->tv, &tv, >))
330 /* the rests are newer than this */
331 break;
332 device_printf(fc->bdev,
333 "split transaction timeout dst=0x%x tl=0x%x state=%d\n",
334 xfer->dst, i, xfer->state);
335 xfer->resp = ETIMEDOUT;
336 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
337 fw_xfer_done(xfer);
338 }
339 }
340 splx(s);
341}
342
343static void
344firewire_watchdog(void *arg)
345{
346 struct firewire_comm *fc;
347
348 fc = (struct firewire_comm *)arg;
349 firewire_xfer_timeout(fc);
350 fc->timeout(fc);
351 callout_reset(&fc->timeout_callout, hz,
352 (void *)firewire_watchdog, (void *)fc);
353}
354
355/*
356 * The attach routine.
357 */
358static int
359firewire_attach( device_t dev )
360{
361 int i, unitmask, mn;
362 struct firewire_softc *sc = device_get_softc(dev);
363 device_t pa = device_get_parent(dev);
364 struct firewire_comm *fc;
365 dev_t d;
366
367 fc = (struct firewire_comm *)device_get_softc(pa);
368 sc->fc = fc;
369 fc->status = FWBUSNOTREADY;
370
371 unitmask = UNIT2MIN(device_get_unit(dev));
372
373 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
374 for ( i = 0 ; i < fc->nisodma ; i++ ){
375 mn = unitmask | i;
376 /* XXX device name should be improved */
377 d = make_dev(&firewire_cdevsw, unit2minor(mn),
378 UID_ROOT, GID_OPERATOR, 0660,
379 "fw%x", mn);
380#if __FreeBSD_version >= 500000
381 if (i == 0)
382 sc->dev = d;
383 else
384 dev_depends(sc->dev, d);
385#else
386 sc->dev[i] = d;
387#endif
388 }
389 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG),
390 UID_ROOT, GID_OPERATOR, 0660,
391 "fwmem%d", device_get_unit(dev));
392#if __FreeBSD_version >= 500000
393 dev_depends(sc->dev, d);
394#else
395 sc->dev[i] = d;
396#endif
397 CALLOUT_INIT(&sc->fc->timeout_callout);
398 CALLOUT_INIT(&sc->fc->bmr_callout);
399 CALLOUT_INIT(&sc->fc->retry_probe_callout);
400 CALLOUT_INIT(&sc->fc->busprobe_callout);
401
402 callout_reset(&sc->fc->timeout_callout, hz,
403 (void *)firewire_watchdog, (void *)sc->fc);
404
405 /* Locate our children */
406 bus_generic_probe(dev);
407
408 /* launch attachement of the added children */
409 bus_generic_attach(dev);
410
411 /* bus_reset */
412 fc->ibr(fc);
413
414 return 0;
415}
416
417/*
418 * Attach it as child.
419 */
420static device_t
421firewire_add_child(device_t dev, int order, const char *name, int unit)
422{
423 device_t child;
424 struct firewire_softc *sc;
425
426 sc = (struct firewire_softc *)device_get_softc(dev);
427 child = device_add_child(dev, name, unit);
428 if (child) {
429 device_set_ivars(child, sc->fc);
430 device_probe_and_attach(child);
431 }
432
433 return child;
434}
435
436static int
437firewire_resume(device_t dev)
438{
439 struct firewire_softc *sc;
440
441 sc = (struct firewire_softc *)device_get_softc(dev);
442 sc->fc->status = FWBUSNOTREADY;
443
444 bus_generic_resume(dev);
445
446 return(0);
447}
448
449/*
450 * Dettach it.
451 */
452static int
453firewire_detach( device_t dev )
454{
455 struct firewire_softc *sc;
456 struct csrdir *csrd, *next;
457 struct fw_device *fwdev, *fwdev_next;
458
459 sc = (struct firewire_softc *)device_get_softc(dev);
460
461 bus_generic_detach(dev);
462
463 callout_stop(&sc->fc->timeout_callout);
464 callout_stop(&sc->fc->bmr_callout);
465 callout_stop(&sc->fc->retry_probe_callout);
466 callout_stop(&sc->fc->busprobe_callout);
467
468#if __FreeBSD_version >= 500000
469 destroy_dev(sc->dev);
470#else
471 {
472 int j;
473 for (j = 0 ; j < sc->fc->nisodma + 1; j++)
474 destroy_dev(sc->dev[j]);
475 }
476#endif
477 /* XXX xfree_free and untimeout on all xfers */
478 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL;
479 fwdev = fwdev_next) {
480 fwdev_next = STAILQ_NEXT(fwdev, link);
481 free(fwdev, M_FW);
482 }
483 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) {
484 next = SLIST_NEXT(csrd, link);
485 free(csrd, M_FW);
486 }
487 free(sc->fc->topology_map, M_FW);
488 free(sc->fc->speed_map, M_FW);
489 free(sc->fc->crom_src_buf, M_FW);
490 return(0);
491}
492#if 0
493static int
494firewire_shutdown( device_t dev )
495{
496 return 0;
497}
498#endif
499
500
501static void
502fw_xferq_drain(struct fw_xferq *xferq)
503{
504 struct fw_xfer *xfer;
505
506 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
507 STAILQ_REMOVE_HEAD(&xferq->q, link);
508 xferq->queued --;
509 xfer->resp = EAGAIN;
510 fw_xfer_done(xfer);
511 }
512}
513
514void
515fw_drain_txq(struct firewire_comm *fc)
516{
517 int i;
518
519 fw_xferq_drain(fc->atq);
520 fw_xferq_drain(fc->ats);
521 for(i = 0; i < fc->nisodma; i++)
522 fw_xferq_drain(fc->it[i]);
523}
524
525static void
526fw_reset_csr(struct firewire_comm *fc)
527{
528 int i;
529
530 CSRARC(fc, STATE_CLEAR)
531 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
532 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
533 CSRARC(fc, NODE_IDS) = 0x3f;
534
535 CSRARC(fc, TOPO_MAP + 8) = 0;
536 fc->irm = -1;
537
538 fc->max_node = -1;
539
540 for(i = 2; i < 0x100/4 - 2 ; i++){
541 CSRARC(fc, SPED_MAP + i * 4) = 0;
542 }
543 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
544 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
545 CSRARC(fc, RESET_START) = 0;
546 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
547 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
548 CSRARC(fc, CYCLE_TIME) = 0x0;
549 CSRARC(fc, BUS_TIME) = 0x0;
550 CSRARC(fc, BUS_MGR_ID) = 0x3f;
551 CSRARC(fc, BANDWIDTH_AV) = 4915;
552 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
553 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
554 CSRARC(fc, IP_CHANNELS) = (1 << 31);
555
556 CSRARC(fc, CONF_ROM) = 0x04 << 24;
557 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
558 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
559 1 << 28 | 0xff << 16 | 0x09 << 8;
560 CSRARC(fc, CONF_ROM + 0xc) = 0;
561
562/* DV depend CSRs see blue book */
563 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
564 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
565
566 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
567 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
568}
569
570static void
571fw_init_crom(struct firewire_comm *fc)
572{
573 struct crom_src *src;
574
575 fc->crom_src_buf = (struct crom_src_buf *)
576 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO);
577 if (fc->crom_src_buf == NULL)
578 return;
579
580 src = &fc->crom_src_buf->src;
581 bzero(src, sizeof(struct crom_src));
582
583 /* BUS info sample */
584 src->hdr.info_len = 4;
585
586 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
587
588 src->businfo.irmc = 1;
589 src->businfo.cmc = 1;
590 src->businfo.isc = 1;
591 src->businfo.bmc = 1;
592 src->businfo.pmc = 0;
593 src->businfo.cyc_clk_acc = 100;
594 src->businfo.max_rec = fc->maxrec;
595 src->businfo.max_rom = MAXROM_4;
596 src->businfo.generation = 1;
597 src->businfo.link_spd = fc->speed;
598
599 src->businfo.eui64.hi = fc->eui.hi;
600 src->businfo.eui64.lo = fc->eui.lo;
601
602 STAILQ_INIT(&src->chunk_list);
603
604 fc->crom_src = src;
605 fc->crom_root = &fc->crom_src_buf->root;
606}
607
608static void
609fw_reset_crom(struct firewire_comm *fc)
610{
611 struct crom_src_buf *buf;
612 struct crom_src *src;
613 struct crom_chunk *root;
614
615 if (fc->crom_src_buf == NULL)
616 fw_init_crom(fc);
617
618 buf = fc->crom_src_buf;
619 src = fc->crom_src;
620 root = fc->crom_root;
621
622 STAILQ_INIT(&src->chunk_list);
623
624 bzero(root, sizeof(struct crom_chunk));
625 crom_add_chunk(src, NULL, root, 0);
626 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
627 /* private company_id */
628 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
629 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project");
630 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version);
631 crom_add_simple_text(src, root, &buf->hw, hostname);
632}
633
634/*
635 * Called after bus reset.
636 */
637void
638fw_busreset(struct firewire_comm *fc)
639{
640 struct firewire_dev_comm *fdc;
641 struct crom_src *src;
642 device_t *devlistp;
643 void *newrom;
644 int i, devcnt;
645
646 switch(fc->status){
647 case FWBUSMGRELECT:
648 callout_stop(&fc->bmr_callout);
649 break;
650 default:
651 break;
652 }
653 fc->status = FWBUSRESET;
654 fw_reset_csr(fc);
655 fw_reset_crom(fc);
656
657 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) {
658 for( i = 0 ; i < devcnt ; i++)
659 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
660 fdc = device_get_softc(devlistp[i]);
661 if (fdc->post_busreset != NULL)
662 fdc->post_busreset(fdc);
663 }
664 free(devlistp, M_TEMP);
665 }
666
667 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO);
668 src = &fc->crom_src_buf->src;
669 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
670 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
671 /* bump generation and reload */
672 src->businfo.generation ++;
673 /* generation must be between 0x2 and 0xF */
674 if (src->businfo.generation < 2)
675 src->businfo.generation ++;
676 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
677 bcopy(newrom, (void *)fc->config_rom, CROMSIZE);
678 }
679 free(newrom, M_FW);
680}
681
682/* Call once after reboot */
683void fw_init(struct firewire_comm *fc)
684{
685 int i;
686 struct csrdir *csrd;
687#ifdef FW_VMACCESS
688 struct fw_xfer *xfer;
689 struct fw_bind *fwb;
690#endif
691
692 fc->max_asyretry = FW_MAXASYRTY;
693
694 fc->arq->queued = 0;
695 fc->ars->queued = 0;
696 fc->atq->queued = 0;
697 fc->ats->queued = 0;
698
699 fc->arq->buf = NULL;
700 fc->ars->buf = NULL;
701 fc->atq->buf = NULL;
702 fc->ats->buf = NULL;
703
704 fc->arq->flag = 0;
705 fc->ars->flag = 0;
706 fc->atq->flag = 0;
707 fc->ats->flag = 0;
708
709 STAILQ_INIT(&fc->atq->q);
710 STAILQ_INIT(&fc->ats->q);
711
712 for( i = 0 ; i < fc->nisodma ; i ++ ){
713 fc->it[i]->queued = 0;
714 fc->ir[i]->queued = 0;
715
716 fc->it[i]->start = NULL;
717 fc->ir[i]->start = NULL;
718
719 fc->it[i]->buf = NULL;
720 fc->ir[i]->buf = NULL;
721
722 fc->it[i]->flag = FWXFERQ_STREAM;
723 fc->ir[i]->flag = FWXFERQ_STREAM;
724
725 STAILQ_INIT(&fc->it[i]->q);
726 STAILQ_INIT(&fc->ir[i]->q);
727
728 STAILQ_INIT(&fc->it[i]->binds);
729 STAILQ_INIT(&fc->ir[i]->binds);
730 }
731
732 fc->arq->maxq = FWMAXQUEUE;
733 fc->ars->maxq = FWMAXQUEUE;
734 fc->atq->maxq = FWMAXQUEUE;
735 fc->ats->maxq = FWMAXQUEUE;
736
737 for( i = 0 ; i < fc->nisodma ; i++){
738 fc->ir[i]->maxq = FWMAXQUEUE;
739 fc->it[i]->maxq = FWMAXQUEUE;
740 }
741/* Initialize csr registers */
742 fc->topology_map = (struct fw_topology_map *)malloc(
743 sizeof(struct fw_topology_map),
744 M_FW, M_NOWAIT | M_ZERO);
745 fc->speed_map = (struct fw_speed_map *)malloc(
746 sizeof(struct fw_speed_map),
747 M_FW, M_NOWAIT | M_ZERO);
748 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
749 CSRARC(fc, TOPO_MAP + 4) = 1;
750 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
751 CSRARC(fc, SPED_MAP + 4) = 1;
752
753 STAILQ_INIT(&fc->devices);
754 STAILQ_INIT(&fc->pending);
755
756/* Initialize csr ROM work space */
757 SLIST_INIT(&fc->ongocsr);
758 SLIST_INIT(&fc->csrfree);
759 for( i = 0 ; i < FWMAXCSRDIR ; i++){
760 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT);
761 if(csrd == NULL) break;
762 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
763 }
764
765/* Initialize Async handlers */
766 STAILQ_INIT(&fc->binds);
767 for( i = 0 ; i < 0x40 ; i++){
768 STAILQ_INIT(&fc->tlabels[i]);
769 }
770
771/* DV depend CSRs see blue book */
772#if 0
773 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
774 CSRARC(fc, oPCR) = 0x8000007a;
775 for(i = 4 ; i < 0x7c/4 ; i+=4){
776 CSRARC(fc, i + oPCR) = 0x8000007a;
777 }
778
779 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
780 CSRARC(fc, iPCR) = 0x803f0000;
781 for(i = 4 ; i < 0x7c/4 ; i+=4){
782 CSRARC(fc, i + iPCR) = 0x0;
783 }
784#endif
785
786 fc->crom_src_buf = NULL;
787
788#ifdef FW_VMACCESS
789 xfer = fw_xfer_alloc();
790 if(xfer == NULL) return;
791
792 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
793 if(fwb == NULL){
794 fw_xfer_free(xfer);
795 }
796 xfer->act.hand = fw_vmaccess;
797 xfer->fc = fc;
798 xfer->sc = NULL;
799
800 fwb->start_hi = 0x2;
801 fwb->start_lo = 0;
802 fwb->addrlen = 0xffffffff;
803 fwb->xfer = xfer;
804 fw_bindadd(fc, fwb);
805#endif
806}
807
808/*
809 * To lookup binded process from IEEE1394 address.
810 */
811struct fw_bind *
812fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo)
813{
814 struct fw_bind *tfw;
815 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ;
816 tfw = STAILQ_NEXT(tfw, fclist)){
817 if (tfw->act_type != FWACT_NULL &&
818 tfw->start_hi == dest_hi &&
819 tfw->start_lo <= dest_lo &&
820 (tfw->start_lo + tfw->addrlen) > dest_lo){
821 return(tfw);
822 }
823 }
824 return(NULL);
825}
826
827/*
828 * To bind IEEE1394 address block to process.
829 */
830int
831fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
832{
833 struct fw_bind *tfw, *tfw2 = NULL;
834 int err = 0;
835 tfw = STAILQ_FIRST(&fc->binds);
836 if(tfw == NULL){
837 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
838 goto out;
839 }
840 if((tfw->start_hi > fwb->start_hi) ||
841 (tfw->start_hi == fwb->start_hi &&
842 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){
843 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
844 goto out;
845 }
846 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){
847 if((tfw->start_hi < fwb->start_hi) ||
848 (tfw->start_hi == fwb->start_hi &&
849 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){
850 tfw2 = STAILQ_NEXT(tfw, fclist);
851 if(tfw2 == NULL)
852 break;
853 if((tfw2->start_hi > fwb->start_hi) ||
854 (tfw2->start_hi == fwb->start_hi &&
855 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){
856 break;
857 }else{
858 err = EBUSY;
859 goto out;
860 }
861 }
862 }
863 if(tfw != NULL){
864 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist);
865 }else{
866 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist);
867 }
868out:
869 if (!err && fwb->act_type == FWACT_CH)
870 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist);
871 return err;
872}
873
874/*
875 * To free IEEE1394 address block.
876 */
877int
878fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
879{
880 int s;
881 struct fw_xfer *xfer, *next;
882
883 s = splfw();
884 /* shall we check the existance? */
885 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
886 /* shall we do this? */
887 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
888 next = STAILQ_NEXT(xfer, link);
889 fw_xfer_free(xfer);
890 }
891 STAILQ_INIT(&fwb->xferlist);
892
893 splx(s);
894 return 0;
895}
896
897/*
898 * To free transaction label.
899 */
900static void
901fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
902{
903 struct tlabel *tl;
904 int s = splfw();
905
906 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
907 tl = STAILQ_NEXT(tl, link)){
908 if(tl->xfer == xfer){
909 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
910 free(tl, M_FW);
911 splx(s);
912 return;
913 }
914 }
915 splx(s);
916 return;
917}
918
919/*
920 * To obtain XFER structure by transaction label.
921 */
922static struct fw_xfer *
923fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
924{
925 struct fw_xfer *xfer;
926 struct tlabel *tl;
927 int s = splfw();
928
929 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
930 tl = STAILQ_NEXT(tl, link)){
931 if(tl->xfer->dst == node){
932 xfer = tl->xfer;
933 splx(s);
934 if (firewire_debug > 2)
935 printf("fw_tl2xfer: found tl=%d\n", tlabel);
936 return(xfer);
937 }
938 }
939 if (firewire_debug > 1)
940 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
941 splx(s);
942 return(NULL);
943}
944
945/*
946 * To allocate IEEE1394 XFER structure.
947 */
948struct fw_xfer *
949fw_xfer_alloc(struct malloc_type *type)
950{
951 struct fw_xfer *xfer;
952
953 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
954 if (xfer == NULL)
955 return xfer;
956
957 microtime(&xfer->tv);
958 xfer->malloc = type;
959
960 return xfer;
961}
962
963struct fw_xfer *
964fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
965{
966 struct fw_xfer *xfer;
967
968 xfer = fw_xfer_alloc(type);
969 xfer->send.len = send_len;
970 xfer->recv.len = recv_len;
971 if (xfer == NULL)
972 return(NULL);
973 if (send_len) {
974 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO);
975 if (xfer->send.buf == NULL) {
976 fw_xfer_free(xfer);
977 return(NULL);
978 }
979 }
980 if (recv_len) {
981 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT);
982 if (xfer->recv.buf == NULL) {
983 if (xfer->send.buf != NULL)
984 free(xfer->send.buf, type);
985 fw_xfer_free(xfer);
986 return(NULL);
987 }
988 }
989 return(xfer);
990}
991
992/*
993 * IEEE1394 XFER post process.
994 */
995void
996fw_xfer_done(struct fw_xfer *xfer)
997{
998 if (xfer->act.hand == NULL) {
999 printf("act.hand == NULL\n");
1000 return;
1001 }
1002
1003 if (xfer->fc->status != FWBUSRESET)
1004 xfer->act.hand(xfer);
1005 else {
1006 printf("fw_xfer_done: pending\n");
1007 if (xfer->fc != NULL)
1008 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link);
1009 else
1010 panic("fw_xfer_done: why xfer->fc is NULL?");
1011 }
1012}
1013
1014void
1015fw_xfer_unload(struct fw_xfer* xfer)
1016{
1017 int s;
1018
1019 if(xfer == NULL ) return;
1020 if(xfer->state == FWXF_INQ){
1021 printf("fw_xfer_free FWXF_INQ\n");
1022 s = splfw();
1023 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
1024 xfer->q->queued --;
1025 splx(s);
1026 }
1027 if (xfer->fc != NULL) {
1028#if 1
1029 if(xfer->state == FWXF_START)
1030 /*
1031 * This could happen if:
1032 * 1. We call fwohci_arcv() before fwohci_txd().
1033 * 2. firewire_watch() is called.
1034 */
1035 printf("fw_xfer_free FWXF_START\n");
1036#endif
1037 fw_tl_free(xfer->fc, xfer);
1038 }
1039 xfer->state = FWXF_INIT;
1040 xfer->resp = 0;
1041 xfer->retry = 0;
1042}
1043/*
1044 * To free IEEE1394 XFER structure.
1045 */
1046void
1047fw_xfer_free( struct fw_xfer* xfer)
1048{
1049 if(xfer == NULL ) return;
1050 fw_xfer_unload(xfer);
1051 if(xfer->send.buf != NULL){
1052 free(xfer->send.buf, xfer->malloc);
1053 }
1054 if(xfer->recv.buf != NULL){
1055 free(xfer->recv.buf, xfer->malloc);
1056 }
1057 free(xfer, xfer->malloc);
1058}
1059
1060static void
1061fw_asy_callback_free(struct fw_xfer *xfer)
1062{
1063#if 0
1064 printf("asyreq done state=%d resp=%d\n",
1065 xfer->state, xfer->resp);
1066#endif
1067 fw_xfer_free(xfer);
1068}
1069
1070/*
1071 * To configure PHY.
1072 */
1073static void
1074fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
1075{
1076 struct fw_xfer *xfer;
1077 struct fw_pkt *fp;
1078
1079 fc->status = FWBUSPHYCONF;
1080
1081 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0);
1082 if (xfer == NULL)
1083 return;
1084 xfer->fc = fc;
1085 xfer->retry_req = fw_asybusy;
1086 xfer->act.hand = fw_asy_callback_free;
1087
1088 fp = (struct fw_pkt *)xfer->send.buf;
1089 fp->mode.ld[1] = 0;
1090 if (root_node >= 0)
1091 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23;
1092 if (gap_count >= 0)
1093 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16;
1094 fp->mode.ld[2] = ~fp->mode.ld[1];
1095/* XXX Dangerous, how to pass PHY packet to device driver */
1096 fp->mode.common.tcode |= FWTCODE_PHY;
1097
1098 if (firewire_debug)
1099 printf("send phy_config root_node=%d gap_count=%d\n",
1100 root_node, gap_count);
1101 fw_asyreq(fc, -1, xfer);
1102}
1103
1104#if 0
1105/*
1106 * Dump self ID.
1107 */
1108static void
1109fw_print_sid(u_int32_t sid)
1110{
1111 union fw_self_id *s;
1112 s = (union fw_self_id *) &sid;
1113 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1114 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1115 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1116 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1117 s->p0.power_class, s->p0.port0, s->p0.port1,
1118 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1119}
1120#endif
1121
1122/*
1123 * To receive self ID.
1124 */
1125void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len)
1126{
1127 u_int32_t *p;
1128 union fw_self_id *self_id;
1129 u_int i, j, node, c_port = 0, i_branch = 0;
1130
1131 fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
1132 fc->status = FWBUSINIT;
1133 fc->max_node = fc->nodeid & 0x3f;
1134 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
1135 fc->status = FWBUSCYMELECT;
1136 fc->topology_map->crc_len = 2;
1137 fc->topology_map->generation ++;
1138 fc->topology_map->self_id_count = 0;
1139 fc->topology_map->node_count = 0;
1140 fc->speed_map->generation ++;
1141 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1142 self_id = &fc->topology_map->self_id[0];
1143 for(i = 0; i < fc->sid_cnt; i ++){
1144 if (sid[1] != ~sid[0]) {
1145 printf("fw_sidrcv: invalid self-id packet\n");
1146 sid += 2;
1147 continue;
1148 }
1149 *self_id = *((union fw_self_id *)sid);
1150 fc->topology_map->crc_len++;
1151 if(self_id->p0.sequel == 0){
1152 fc->topology_map->node_count ++;
1153 c_port = 0;
1154#if 0
1155 fw_print_sid(sid[0]);
1156#endif
1157 node = self_id->p0.phy_id;
1158 if(fc->max_node < node){
1159 fc->max_node = self_id->p0.phy_id;
1160 }
1161 /* XXX I'm not sure this is the right speed_map */
1162 fc->speed_map->speed[node][node]
1163 = self_id->p0.phy_speed;
1164 for (j = 0; j < node; j ++) {
1165 fc->speed_map->speed[j][node]
1166 = fc->speed_map->speed[node][j]
1167 = min(fc->speed_map->speed[j][j],
1168 self_id->p0.phy_speed);
1169 }
1170 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1171 (self_id->p0.link_active && self_id->p0.contender)) {
1172 fc->irm = self_id->p0.phy_id;
1173 }
1174 if(self_id->p0.port0 >= 0x2){
1175 c_port++;
1176 }
1177 if(self_id->p0.port1 >= 0x2){
1178 c_port++;
1179 }
1180 if(self_id->p0.port2 >= 0x2){
1181 c_port++;
1182 }
1183 }
1184 if(c_port > 2){
1185 i_branch += (c_port - 2);
1186 }
1187 sid += 2;
1188 self_id++;
1189 fc->topology_map->self_id_count ++;
1190 }
1191 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1192 /* CRC */
1193 fc->topology_map->crc = fw_crc16(
1194 (u_int32_t *)&fc->topology_map->generation,
1195 fc->topology_map->crc_len * 4);
1196 fc->speed_map->crc = fw_crc16(
1197 (u_int32_t *)&fc->speed_map->generation,
1198 fc->speed_map->crc_len * 4);
1199 /* byteswap and copy to CSR */
1200 p = (u_int32_t *)fc->topology_map;
1201 for (i = 0; i <= fc->topology_map->crc_len; i++)
1202 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1203 p = (u_int32_t *)fc->speed_map;
1204 CSRARC(fc, SPED_MAP) = htonl(*p++);
1205 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1206 /* don't byte-swap u_int8_t array */
1207 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1208
1209 fc->max_hop = fc->max_node - i_branch;
1210 printf(", maxhop <= %d", fc->max_hop);
1211
1212 if(fc->irm == -1 ){
1213 printf(", Not found IRM capable node");
1214 }else{
1215 printf(", cable IRM = %d", fc->irm);
1216 if (fc->irm == fc->nodeid)
1217 printf(" (me)");
1218 }
1219 printf("\n");
1220
1221 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1222 if (fc->irm == fc->nodeid) {
1223 fc->status = FWBUSMGRDONE;
1224 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1225 fw_bmr(fc);
1226 } else {
1227 fc->status = FWBUSMGRELECT;
1228 callout_reset(&fc->bmr_callout, hz/8,
1229 (void *)fw_try_bmr, (void *)fc);
1230 }
1231 } else
1232 fc->status = FWBUSMGRDONE;
1233
1234 callout_reset(&fc->busprobe_callout, hz/4,
1235 (void *)fw_bus_probe, (void *)fc);
1236}
1237
1238/*
1239 * To probe devices on the IEEE1394 bus.
1240 */
1241static void
1242fw_bus_probe(struct firewire_comm *fc)
1243{
1244 int s;
1245 struct fw_device *fwdev, *next;
1246
1247 s = splfw();
1248 fc->status = FWBUSEXPLORE;
1249 fc->retry_count = 0;
1250
1251/*
1252 * Invalidate all devices, just after bus reset. Devices
1253 * to be removed has not been seen longer time.
1254 */
1255 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1256 next = STAILQ_NEXT(fwdev, link);
1257 if (fwdev->status != FWDEVINVAL) {
1258 fwdev->status = FWDEVINVAL;
1259 fwdev->rcnt = 0;
1260 } else if(fwdev->rcnt < FW_MAXDEVRCNT) {
1261 fwdev->rcnt ++;
1262 } else {
1263 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link);
1264 free(fwdev, M_FW);
1265 }
1266 }
1267 fc->ongonode = 0;
1268 fc->ongoaddr = CSRROMOFF;
1269 fc->ongodev = NULL;
1270 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1271 fw_bus_explore(fc);
1272 splx(s);
1273}
1274
1275/*
1276 * To collect device informations on the IEEE1394 bus.
1277 */
1278static void
1279fw_bus_explore(struct firewire_comm *fc )
1280{
1281 int err = 0;
1282 struct fw_device *fwdev, *pfwdev, *tfwdev;
1283 u_int32_t addr;
1284 struct fw_xfer *xfer;
1285 struct fw_pkt *fp;
1286
1287 if(fc->status != FWBUSEXPLORE)
1288 return;
1289
1290loop:
1291 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1292
1293 if(fc->ongonode > fc->max_node) goto done;
1294 if(fc->ongonode >= 0x3f) goto done;
1295
1296 /* check link */
1297 /* XXX we need to check phy_id first */
1298 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
1299 if (firewire_debug)
1300 printf("node%d: link down\n", fc->ongonode);
1301 fc->ongonode++;
1302 goto loop;
1303 }
1304
1305 if(fc->ongoaddr <= CSRROMOFF &&
1306 fc->ongoeui.hi == 0xffffffff &&
1307 fc->ongoeui.lo == 0xffffffff ){
1308 fc->ongoaddr = CSRROMOFF;
1309 addr = 0xf0000000 | fc->ongoaddr;
1310 }else if(fc->ongoeui.hi == 0xffffffff ){
1311 fc->ongoaddr = CSRROMOFF + 0xc;
1312 addr = 0xf0000000 | fc->ongoaddr;
1313 }else if(fc->ongoeui.lo == 0xffffffff ){
1314 fc->ongoaddr = CSRROMOFF + 0x10;
1315 addr = 0xf0000000 | fc->ongoaddr;
1316 }else if(fc->ongodev == NULL){
1317 STAILQ_FOREACH(fwdev, &fc->devices, link)
1318 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1319 break;
1320 if(fwdev != NULL){
1321 fwdev->dst = fc->ongonode;
1322 fwdev->status = FWDEVINIT;
1323 fc->ongodev = fwdev;
1324 fc->ongoaddr = CSRROMOFF;
1325 addr = 0xf0000000 | fc->ongoaddr;
1326 goto dorequest;
1327 }
1328 fwdev = malloc(sizeof(struct fw_device), M_FW,
1329 M_NOWAIT | M_ZERO);
1330 if(fwdev == NULL)
1331 return;
1332 fwdev->fc = fc;
1333 fwdev->rommax = 0;
1334 fwdev->dst = fc->ongonode;
1335 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1336 fwdev->status = FWDEVINIT;
1337 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1338
1339 pfwdev = NULL;
1340 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1341 if (tfwdev->eui.hi > fwdev->eui.hi ||
1342 (tfwdev->eui.hi == fwdev->eui.hi &&
1343 tfwdev->eui.lo > fwdev->eui.lo))
1344 break;
1345 pfwdev = tfwdev;
1346 }
1347 if (pfwdev == NULL)
1348 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1349 else
1350 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1351
1352 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1353 linkspeed[fwdev->speed],
1354 fc->ongoeui.hi, fc->ongoeui.lo);
1355
1356 fc->ongodev = fwdev;
1357 fc->ongoaddr = CSRROMOFF;
1358 addr = 0xf0000000 | fc->ongoaddr;
1359 }else{
1360 addr = 0xf0000000 | fc->ongoaddr;
1361 }
1362dorequest:
1363#if 0
1364 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1365 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1366 fw_bus_explore_callback);
1367 if(xfer == NULL) goto done;
1368#else
1369 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16);
1370 if(xfer == NULL){
1371 goto done;
1372 }
1373 xfer->spd = 0;
1374 fp = (struct fw_pkt *)xfer->send.buf;
1375 fp->mode.rreqq.dest_hi = 0xffff;
1376 fp->mode.rreqq.tlrt = 0;
1377 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1378 fp->mode.rreqq.pri = 0;
1379 fp->mode.rreqq.src = 0;
1380 xfer->dst = FWLOCALBUS | fc->ongonode;
1381 fp->mode.rreqq.dst = xfer->dst;
1382 fp->mode.rreqq.dest_lo = addr;
1383 xfer->act.hand = fw_bus_explore_callback;
1384
1385 if (firewire_debug)
1386 printf("node%d: explore addr=0x%x\n",
1387 fc->ongonode, fc->ongoaddr);
1388 err = fw_asyreq(fc, -1, xfer);
1389 if(err){
1390 fw_xfer_free( xfer);
1391 return;
1392 }
1393#endif
1394 return;
1395done:
1396 /* fw_attach_devs */
1397 fc->status = FWBUSEXPDONE;
1398 if (firewire_debug)
1399 printf("bus_explore done\n");
1400 fw_attach_dev(fc);
1401 return;
1402
1403}
1404
1405/* Portable Async. request read quad */
1406struct fw_xfer *
1407asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt,
1408 u_int32_t addr_hi, u_int32_t addr_lo,
1409 void (*hand) __P((struct fw_xfer*)))
1410{
1411 struct fw_xfer *xfer;
1412 struct fw_pkt *fp;
1413 int err;
1414
1415 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16);
1416 if (xfer == NULL)
1417 return NULL;
1418
1419 xfer->spd = spd; /* XXX:min(spd, fc->spd) */
1420 fp = (struct fw_pkt *)xfer->send.buf;
1421 fp->mode.rreqq.dest_hi = addr_hi & 0xffff;
1422 if(tl & FWP_TL_VALID){
1423 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1424 }else{
1425 fp->mode.rreqq.tlrt = 0;
1426 }
1427 fp->mode.rreqq.tlrt |= rt & 0x3;
1428 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1429 fp->mode.rreqq.pri = 0;
1430 fp->mode.rreqq.src = 0;
1431 xfer->dst = addr_hi >> 16;
1432 fp->mode.rreqq.dst = xfer->dst;
1433 fp->mode.rreqq.dest_lo = addr_lo;
1434 xfer->act.hand = hand;
1435
1436 err = fw_asyreq(fc, -1, xfer);
1437 if(err){
1438 fw_xfer_free( xfer);
1439 return NULL;
1440 }
1441 return xfer;
1442}
1443
1444/*
1445 * Callback for the IEEE1394 bus information collection.
1446 */
1447static void
1448fw_bus_explore_callback(struct fw_xfer *xfer)
1449{
1450 struct firewire_comm *fc;
1451 struct fw_pkt *sfp,*rfp;
1452 struct csrhdr *chdr;
1453 struct csrdir *csrd;
1454 struct csrreg *csrreg;
1455 u_int32_t offset;
1456
1457
1458 if(xfer == NULL) {
1459 printf("xfer == NULL\n");
1460 return;
1461 }
1462 fc = xfer->fc;
1463
1464 if (firewire_debug)
1465 printf("node%d: callback addr=0x%x\n",
1466 fc->ongonode, fc->ongoaddr);
1467
1468 if(xfer->resp != 0){
1469 printf("node%d: resp=%d addr=0x%x\n",
1470 fc->ongonode, xfer->resp, fc->ongoaddr);
1471 goto errnode;
1472 }
1473
1474 if(xfer->send.buf == NULL){
1475 printf("node%d: send.buf=NULL addr=0x%x\n",
1476 fc->ongonode, fc->ongoaddr);
1477 goto errnode;
1478 }
1479 sfp = (struct fw_pkt *)xfer->send.buf;
1480
1481 if(xfer->recv.buf == NULL){
1482 printf("node%d: recv.buf=NULL addr=0x%x\n",
1483 fc->ongonode, fc->ongoaddr);
1484 goto errnode;
1485 }
1486 rfp = (struct fw_pkt *)xfer->recv.buf;
1487#if 0
1488 {
1489 u_int32_t *qld;
1490 int i;
1491 qld = (u_int32_t *)xfer->recv.buf;
1492 printf("len:%d\n", xfer->recv.len);
1493 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1494 printf("0x%08x ", rfp->mode.ld[i/4]);
1495 if((i % 16) == 15) printf("\n");
1496 }
1497 if((i % 16) != 15) printf("\n");
1498 }
1499#endif
1500 if(fc->ongodev == NULL){
1501 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){
1502 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1503 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1504/* If CSR is minimal confinguration, more investgation is not needed. */
1505 if(chdr->info_len == 1){
1506 if (firewire_debug)
1507 printf("node%d: minimal config\n",
1508 fc->ongonode);
1509 goto nextnode;
1510 }else{
1511 fc->ongoaddr = CSRROMOFF + 0xc;
1512 }
1513 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){
1514 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1515 fc->ongoaddr = CSRROMOFF + 0x10;
1516 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){
1517 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1518 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1519 if (firewire_debug)
1520 printf("node%d: eui64 is zero.\n",
1521 fc->ongonode);
1522 goto nextnode;
1523 }
1524 fc->ongoaddr = CSRROMOFF;
1525 }
1526 }else{
1527 if (fc->ongoaddr == CSRROMOFF &&
1528 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) {
1529 fc->ongodev->status = FWDEVATTACHED;
1530 goto nextnode;
1531 }
1532 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1533 if(fc->ongoaddr > fc->ongodev->rommax){
1534 fc->ongodev->rommax = fc->ongoaddr;
1535 }
1536 csrd = SLIST_FIRST(&fc->ongocsr);
1537 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1538 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1539 offset = CSRROMOFF;
1540 }else{
1541 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1542 offset = csrd->off;
1543 }
1544 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1545 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1546 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1547 csrd = SLIST_FIRST(&fc->csrfree);
1548 if(csrd == NULL){
1549 goto nextnode;
1550 }else{
1551 csrd->ongoaddr = fc->ongoaddr;
1552 fc->ongoaddr += csrreg->val * 4;
1553 csrd->off = fc->ongoaddr;
1554 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1555 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1556 goto nextaddr;
1557 }
1558 }
1559 }
1560 fc->ongoaddr += 4;
1561 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1562 (fc->ongodev->rommax < 0x414)){
1563 if(fc->ongodev->rommax <= 0x414){
1564 csrd = SLIST_FIRST(&fc->csrfree);
1565 if(csrd == NULL) goto nextnode;
1566 csrd->off = fc->ongoaddr;
1567 csrd->ongoaddr = fc->ongoaddr;
1568 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1569 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1570 }
1571 goto nextaddr;
1572 }
1573
1574 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1575 if(csrd == NULL){
1576 goto nextnode;
1577 };
1578 fc->ongoaddr = csrd->ongoaddr + 4;
1579 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1580 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1581 csrd = SLIST_FIRST(&fc->ongocsr);
1582 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1583 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1584 offset = CSRROMOFF;
1585 }else{
1586 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1587 offset = csrd->off;
1588 }
1589 }
1590 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1591 goto nextnode;
1592 }
1593 }
1594nextaddr:
1595 fw_xfer_free( xfer);
1596 fw_bus_explore(fc);
1597 return;
1598errnode:
1599 fc->retry_count++;
1600 if (fc->ongodev != NULL)
1601 fc->ongodev->status = FWDEVINVAL;
1602nextnode:
1603 fw_xfer_free( xfer);
1604 fc->ongonode++;
1605/* housekeeping work space */
1606 fc->ongoaddr = CSRROMOFF;
1607 fc->ongodev = NULL;
1608 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1609 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1610 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1611 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1612 }
1613 fw_bus_explore(fc);
1614 return;
1615}
1616
1617/*
1618 * To attach sub-devices layer onto IEEE1394 bus.
1619 */
1620static void
1621fw_attach_dev(struct firewire_comm *fc)
1622{
1623 struct fw_device *fwdev;
1624 struct fw_xfer *xfer;
1625 int i, err;
1626 device_t *devlistp;
1627 int devcnt;
1628 struct firewire_dev_comm *fdc;
1629
1630 STAILQ_FOREACH(fwdev, &fc->devices, link)
1631 if (fwdev->status == FWDEVINIT)
1632 fwdev->status = FWDEVATTACHED;
1633
1634 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1635 if( err != 0 )
1636 return;
1637 for( i = 0 ; i < devcnt ; i++){
1638 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1639 fdc = device_get_softc(devlistp[i]);
1640 if (fdc->post_explore != NULL)
1641 fdc->post_explore(fdc);
1642 }
1643 }
1644 free(devlistp, M_TEMP);
1645
1646 /* call pending handlers */
1647 i = 0;
1648 while ((xfer = STAILQ_FIRST(&fc->pending))) {
1649 STAILQ_REMOVE_HEAD(&fc->pending, link);
1650 i++;
1651 if (xfer->act.hand)
1652 xfer->act.hand(xfer);
1653 }
1654 if (i > 0)
1655 printf("fw_attach_dev: %d pending handlers called\n", i);
1656 if (fc->retry_count > 0) {
1657 printf("probe failed for %d node\n", fc->retry_count);
1658#if 0
1659 callout_reset(&fc->retry_probe_callout, hz*2,
1660 (void *)fc->ibr, (void *)fc);
1661#endif
1662 }
1663 return;
1664}
1665
1666/*
1667 * To allocate uniq transaction label.
1668 */
1669static int
1670fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1671{
1672 u_int i;
1673 struct tlabel *tl, *tmptl;
1674 int s;
1675 static u_int32_t label = 0;
1676
1677 s = splfw();
1678 for( i = 0 ; i < 0x40 ; i ++){
1679 label = (label + 1) & 0x3f;
1680 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1681 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1682 if(tmptl->xfer->dst == xfer->dst) break;
1683 }
1684 if(tmptl == NULL) {
1685 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT);
1686 if (tl == NULL) {
1687 splx(s);
1688 return (-1);
1689 }
1690 tl->xfer = xfer;
1691 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1692 splx(s);
1693 if (firewire_debug > 1)
1694 printf("fw_get_tlabel: dst=%d tl=%d\n",
1695 xfer->dst, label);
1696 return(label);
1697 }
1698 }
1699 splx(s);
1700
1701 printf("fw_get_tlabel: no free tlabel\n");
1702 return(-1);
1703}
1704
1705static void
1706fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec)
1707{
1708 char *p;
1709 int res, i, len;
1710
1711 p = xfer->recv.buf;
1712 res = xfer->recv.len;
1713 for (i = 0; i < nvec; i++, vec++) {
1714 len = vec->iov_len;
1715 if (res < len) {
1716 printf("rcv buffer(%d) is %d bytes short.\n",
1717 xfer->recv.len, len - res);
1718 len = res;
1719 }
1720 bcopy(vec->iov_base, p, len);
1721 p += len;
1722 res -= len;
1723 if (res <= 0)
1724 break;
1725 }
1726 xfer->recv.len -= res;
1727}
1728
1729/*
1730 * Generic packet receving process.
1731 */
1732void
1733fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd)
1734{
1735 struct fw_pkt *fp, *resfp;
1736 struct fw_xfer *xfer;
1737 struct fw_bind *bind;
1738 struct firewire_softc *sc;
1739 int tcode, s;
1740 int i, len, oldstate;
1741#if 0
1742 {
1743 u_int32_t *qld;
1744 int i;
1745 qld = (u_int32_t *)buf;
1746 printf("spd %d len:%d\n", spd, len);
1747 for( i = 0 ; i <= len && i < 32; i+= 4){
1748 printf("0x%08x ", ntohl(qld[i/4]));
1749 if((i % 16) == 15) printf("\n");
1750 }
1751 if((i % 16) != 15) printf("\n");
1752 }
1753#endif
1754 fp = (struct fw_pkt *)vec[0].iov_base;
1755 tcode = fp->mode.common.tcode;
1756#if 0 /* XXX this check is not valid for RRESQ and WREQQ */
1757 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) {
1758#if __FreeBSD_version >= 500000
1759 printf("fw_rcv: iov_len(%zu) is less than"
1760#else
1761 printf("fw_rcv: iov_len(%u) is less than"
1762#endif
1763 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len,
1764 fc->tcode[tcode].hdr_len, tcode);
1765 }
1766#endif
1767 switch (tcode) {
1768 case FWTCODE_WRES:
1769 case FWTCODE_RRESQ:
1770 case FWTCODE_RRESB:
1771 case FWTCODE_LRES:
1772 xfer = fw_tl2xfer(fc, fp->mode.hdr.src,
1773 fp->mode.hdr.tlrt >> 2);
1774 if(xfer == NULL) {
1775 printf("fw_rcv: unknown response "
1776 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n",
1777 tcode,
1778 fp->mode.hdr.src,
1779 fp->mode.hdr.tlrt >> 2,
1780 fp->mode.hdr.tlrt & 3,
1781 fp->mode.rresq.data);
1782#if 1
1783 printf("try ad-hoc work around!!\n");
1784 xfer = fw_tl2xfer(fc, fp->mode.hdr.src,
1785 (fp->mode.hdr.tlrt >> 2)^3);
1786 if (xfer == NULL) {
1787 printf("no use...\n");
1788 goto err;
1789 }
1790#else
1791 goto err;
1792#endif
1793 }
1794 fw_rcv_copy(xfer, vec, nvec);
1795 xfer->resp = 0;
1796 /* make sure the packet is drained in AT queue */
1797 oldstate = xfer->state;
1798 xfer->state = FWXF_RCVD;
1799 switch (oldstate) {
1800 case FWXF_SENT:
1801 fw_xfer_done(xfer);
1802 break;
1803 case FWXF_START:
1804 if (firewire_debug)
1805 printf("not sent yet tl=%x\n", xfer->tl);
1806 break;
1807 default:
1808 printf("unexpected state %d\n", xfer->state);
1809 }
1810 return;
1811 case FWTCODE_WREQQ:
1812 case FWTCODE_WREQB:
1813 case FWTCODE_RREQQ:
1814 case FWTCODE_RREQB:
1815 case FWTCODE_LREQ:
1816 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi,
1817 fp->mode.rreqq.dest_lo);
1818 if(bind == NULL){
1819#if __FreeBSD_version >= 500000
1820 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n",
1821#else
1822 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n",
1823#endif
1824 fp->mode.wreqq.dest_hi,
1825 fp->mode.wreqq.dest_lo,
1826 tcode,
1827 fp->mode.hdr.src,
1828 ntohl(fp->mode.wreqq.data));
1829 if (fc->status == FWBUSRESET) {
1830 printf("fw_rcv: cannot respond(bus reset)!\n");
1831 goto err;
1832 }
1833 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0);
1834 if(xfer == NULL){
1835 return;
1836 }
1837 xfer->spd = spd;
1838 resfp = (struct fw_pkt *)xfer->send.buf;
1839 switch (tcode) {
1840 case FWTCODE_WREQQ:
1841 case FWTCODE_WREQB:
1842 resfp->mode.hdr.tcode = FWTCODE_WRES;
1843 xfer->send.len = 12;
1844 break;
1845 case FWTCODE_RREQQ:
1846 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1847 xfer->send.len = 16;
1848 break;
1849 case FWTCODE_RREQB:
1850 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1851 xfer->send.len = 16;
1852 break;
1853 case FWTCODE_LREQ:
1854 resfp->mode.hdr.tcode = FWTCODE_LRES;
1855 xfer->send.len = 16;
1856 break;
1857 }
1858 resfp->mode.hdr.dst = fp->mode.hdr.src;
1859 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1860 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1861 resfp->mode.rresb.rtcode = 7;
1862 resfp->mode.rresb.extcode = 0;
1863 resfp->mode.rresb.len = 0;
1864/*
1865 xfer->act.hand = fw_asy_callback;
1866*/
1867 xfer->act.hand = fw_xfer_free;
1868 if(fw_asyreq(fc, -1, xfer)){
1869 fw_xfer_free( xfer);
1870 return;
1871 }
1872 goto err;
1873 }
1874 len = 0;
1875 for (i = 0; i < nvec; i ++)
1876 len += vec[i].iov_len;
1877 switch(bind->act_type){
1878 case FWACT_XFER:
1879 /* splfw()?? */
1880 xfer = STAILQ_FIRST(&bind->xferlist);
1881 if (xfer == NULL) {
1882 printf("Discard a packet for this bind.\n");
1883 goto err;
1884 }
1885 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1886 fw_rcv_copy(xfer, vec, nvec);
1887 xfer->spd = spd;
1888 if (fc->status != FWBUSRESET)
1889 xfer->act.hand(xfer);
1890 else
1891 STAILQ_INSERT_TAIL(&fc->pending, xfer, link);
1892 return;
1893 break;
1894 case FWACT_CH:
1895 if(fc->ir[bind->sub]->queued >=
1896 fc->ir[bind->sub]->maxq){
1897 device_printf(fc->bdev,
1898 "Discard a packet %x %d\n",
1899 bind->sub,
1900 fc->ir[bind->sub]->queued);
1901 goto err;
1902 }
1903 xfer = STAILQ_FIRST(&bind->xferlist);
1904 if (xfer == NULL) {
1905 printf("Discard packet for this bind\n");
1906 goto err;
1907 }
1908 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1909 fw_rcv_copy(xfer, vec, nvec);
1910 xfer->spd = spd;
1911 s = splfw();
1912 fc->ir[bind->sub]->queued++;
1913 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link);
1914 splx(s);
1915
1916 wakeup((caddr_t)fc->ir[bind->sub]);
1917
1918 return;
1919 break;
1920 default:
1921 goto err;
1922 break;
1923 }
1924 break;
1925 case FWTCODE_STREAM:
1926 {
1927 struct fw_xferq *xferq;
1928
1929 xferq = fc->ir[sub];
1930#if 0
1931 printf("stream rcv dma %d len %d off %d spd %d\n",
1932 sub, len, off, spd);
1933#endif
1934 if(xferq->queued >= xferq->maxq) {
1935 printf("receive queue is full\n");
1936 goto err;
1937 }
1938 /* XXX get xfer from xfer queue, we don't need copy for
1939 per packet mode */
1940 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
1941 vec[0].iov_len);
1942 if(xfer == NULL) goto err;
1943 fw_rcv_copy(xfer, vec, nvec);
1944 xfer->spd = spd;
1945 s = splfw();
1946 xferq->queued++;
1947 STAILQ_INSERT_TAIL(&xferq->q, xfer, link);
1948 splx(s);
1949 sc = device_get_softc(fc->bdev);
1950#if __FreeBSD_version >= 500000
1951 if (SEL_WAITING(&xferq->rsel))
1952#else
1953 if (&xferq->rsel.si_pid != 0)
1954#endif
1955 selwakeup(&xferq->rsel);
1956 if (xferq->flag & FWXFERQ_WAKEUP) {
1957 xferq->flag &= ~FWXFERQ_WAKEUP;
1958 wakeup((caddr_t)xferq);
1959 }
1960 if (xferq->flag & FWXFERQ_HANDLER) {
1961 xferq->hand(xferq);
1962 }
1963 return;
1964 break;
1965 }
1966 default:
1967 printf("fw_rcv: unknow tcode %d\n", tcode);
1968 break;
1969 }
1970err:
1971 return;
1972}
1973
1974/*
1975 * Post process for Bus Manager election process.
1976 */
1977static void
1978fw_try_bmr_callback(struct fw_xfer *xfer)
1979{
1980 struct fw_pkt *rfp;
1981 struct firewire_comm *fc;
1982 int bmr;
1983
1984 if (xfer == NULL)
1985 return;
1986 fc = xfer->fc;
1987 if (xfer->resp != 0)
1988 goto error;
1989 if (xfer->send.buf == NULL)
1990 goto error;
1991 if (xfer->recv.buf == NULL)
1992 goto error;
1993 rfp = (struct fw_pkt *)xfer->recv.buf;
1994 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE)
1995 goto error;
1996
1997 bmr = ntohl(rfp->mode.lres.payload[0]);
1998 if (bmr == 0x3f)
1999 bmr = fc->nodeid;
2000
2001 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
2002 fw_xfer_free(xfer);
2003 fw_bmr(fc);
2004 return;
2005
2006error:
2007 device_printf(fc->bdev, "bus manager election failed\n");
2008 fw_xfer_free(xfer);
2009}
2010
2011
2012/*
2013 * To candidate Bus Manager election process.
2014 */
2015static void
2016fw_try_bmr(void *arg)
2017{
2018 struct fw_xfer *xfer;
2019 struct firewire_comm *fc = (struct firewire_comm *)arg;
2020 struct fw_pkt *fp;
2021 int err = 0;
2022
2023 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20);
2024 if(xfer == NULL){
2025 return;
2026 }
2027 xfer->spd = 0;
2028 fc->status = FWBUSMGRELECT;
2029
2030 fp = (struct fw_pkt *)xfer->send.buf;
2031 fp->mode.lreq.dest_hi = 0xffff;
2032 fp->mode.lreq.tlrt = 0;
2033 fp->mode.lreq.tcode = FWTCODE_LREQ;
2034 fp->mode.lreq.pri = 0;
2035 fp->mode.lreq.src = 0;
2036 fp->mode.lreq.len = 8;
2037 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP;
2038 xfer->dst = FWLOCALBUS | fc->irm;
2039 fp->mode.lreq.dst = xfer->dst;
2040 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
2041 fp->mode.lreq.payload[0] = htonl(0x3f);
2042 fp->mode.lreq.payload[1] = htonl(fc->nodeid);
2043 xfer->act.hand = fw_try_bmr_callback;
2044
2045 err = fw_asyreq(fc, -1, xfer);
2046 if(err){
2047 fw_xfer_free( xfer);
2048 return;
2049 }
2050 return;
2051}
2052
2053#ifdef FW_VMACCESS
2054/*
2055 * Software implementation for physical memory block access.
2056 * XXX:Too slow, usef for debug purpose only.
2057 */
2058static void
2059fw_vmaccess(struct fw_xfer *xfer){
2060 struct fw_pkt *rfp, *sfp = NULL;
2061 u_int32_t *ld = (u_int32_t *)xfer->recv.buf;
2062
2063 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
2064 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2065 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2066 if(xfer->resp != 0){
2067 fw_xfer_free( xfer);
2068 return;
2069 }
2070 if(xfer->recv.buf == NULL){
2071 fw_xfer_free( xfer);
2072 return;
2073 }
2074 rfp = (struct fw_pkt *)xfer->recv.buf;
2075 switch(rfp->mode.hdr.tcode){
2076 /* XXX need fix for 64bit arch */
2077 case FWTCODE_WREQB:
2078 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2079 xfer->send.len = 12;
2080 sfp = (struct fw_pkt *)xfer->send.buf;
2081 bcopy(rfp->mode.wreqb.payload,
2082 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2083 sfp->mode.wres.tcode = FWTCODE_WRES;
2084 sfp->mode.wres.rtcode = 0;
2085 break;
2086 case FWTCODE_WREQQ:
2087 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2088 xfer->send.len = 12;
2089 sfp->mode.wres.tcode = FWTCODE_WRES;
2090 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2091 sfp->mode.wres.rtcode = 0;
2092 break;
2093 case FWTCODE_RREQB:
2094 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2095 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2096 sfp = (struct fw_pkt *)xfer->send.buf;
2097 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2098 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
2099 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2100 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2101 sfp->mode.rresb.rtcode = 0;
2102 sfp->mode.rresb.extcode = 0;
2103 break;
2104 case FWTCODE_RREQQ:
2105 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2106 xfer->send.len = 16;
2107 sfp = (struct fw_pkt *)xfer->send.buf;
2108 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2109 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2110 sfp->mode.rresb.rtcode = 0;
2111 break;
2112 default:
2113 fw_xfer_free( xfer);
2114 return;
2115 }
2116 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2117 xfer->dst = ntohs(rfp->mode.hdr.src);
2118 xfer->act.hand = fw_xfer_free;
2119 xfer->retry_req = fw_asybusy;
2120
2121 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2122 sfp->mode.hdr.pri = 0;
2123
2124 fw_asyreq(xfer->fc, -1, xfer);
2125/**/
2126 return;
2127}
2128#endif
2129
2130/*
2131 * CRC16 check-sum for IEEE1394 register blocks.
2132 */
2133u_int16_t
2134fw_crc16(u_int32_t *ptr, u_int32_t len){
2135 u_int32_t i, sum, crc = 0;
2136 int shift;
2137 len = (len + 3) & ~3;
2138 for(i = 0 ; i < len ; i+= 4){
2139 for( shift = 28 ; shift >= 0 ; shift -= 4){
2140 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2141 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2142 }
2143 crc &= 0xffff;
2144 }
2145 return((u_int16_t) crc);
2146}
2147
2148static int
2149fw_bmr(struct firewire_comm *fc)
2150{
2151 struct fw_device fwdev;
2152 union fw_self_id *self_id;
2153 int cmstr;
2154
2155 /* Check to see if the current root node is cycle master capable */
2156 self_id = &fc->topology_map->self_id[fc->max_node];
2157 if (fc->max_node > 0) {
2158 /* XXX check cmc bit of businfo block rather than contender */
2159 if (self_id->p0.link_active && self_id->p0.contender)
2160 cmstr = fc->max_node;
2161 else {
2162 device_printf(fc->bdev,
2163 "root node is not cycle master capable\n");
2164 /* XXX shall we be the cycle master? */
2165 cmstr = fc->nodeid;
2166 /* XXX need bus reset */
2167 }
2168 } else
2169 cmstr = -1;
2170
2171 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID));
2172 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
2173 /* We are not the bus manager */
2174 printf("\n");
2175 return(0);
2176 }
2177 printf("(me)\n");
2178
2179 /* Optimize gapcount */
2180 if(fc->max_hop <= MAX_GAPHOP )
2181 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
2182 /* If we are the cycle master, nothing to do */
2183 if (cmstr == fc->nodeid || cmstr == -1)
2184 return 0;
2185 /* Bus probe has not finished, make dummy fwdev for cmstr */
2186 bzero(&fwdev, sizeof(fwdev));
2187 fwdev.fc = fc;
2188 fwdev.dst = cmstr;
2189 fwdev.speed = 0;
2190 fwdev.maxrec = 8; /* 512 */
2191 fwdev.status = FWDEVINIT;
2192 /* Set cmstr bit on the cycle master */
2193 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2194 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 8),
2195 fw_asy_callback_free);
2196
2197 return 0;
2198}
2199
2200DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0);
2201MODULE_VERSION(firewire, 1);
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