35 *
36 */
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/types.h>
41
42#include <sys/kernel.h>
43#include <sys/module.h>
44#include <sys/malloc.h>
45#include <sys/conf.h>
46#include <sys/sysctl.h>
47
48#if defined(__DragonFly__) || __FreeBSD_version < 500000
49#include <machine/clock.h> /* for DELAY() */
50#endif
51
52#include <sys/bus.h> /* used by smbus and newbus */
53#include <machine/bus.h>
54
55#ifdef __DragonFly__
56#include "firewire.h"
57#include "firewirereg.h"
58#include "fwmem.h"
59#include "iec13213.h"
60#include "iec68113.h"
61#else
62#include <dev/firewire/firewire.h>
63#include <dev/firewire/firewirereg.h>
64#include <dev/firewire/fwmem.h>
65#include <dev/firewire/iec13213.h>
66#include <dev/firewire/iec68113.h>
67#endif
68
69struct crom_src_buf {
70 struct crom_src src;
71 struct crom_chunk root;
72 struct crom_chunk vendor;
73 struct crom_chunk hw;
74};
75
76int firewire_debug=0, try_bmr=1, hold_count=3;
77SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
78 "FireWire driver debug flag");
79SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
80SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
81 "Try to be a bus manager");
82SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0,
83 "Number of count of bus resets for removing lost device information");
84
85MALLOC_DEFINE(M_FW, "firewire", "FireWire");
86MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
87
88#define FW_MAXASYRTY 4
89
90devclass_t firewire_devclass;
91
92static void firewire_identify (driver_t *, device_t);
93static int firewire_probe (device_t);
94static int firewire_attach (device_t);
95static int firewire_detach (device_t);
96static int firewire_resume (device_t);
97#if 0
98static int firewire_shutdown (device_t);
99#endif
100static device_t firewire_add_child (device_t, int, const char *, int);
101static void fw_try_bmr (void *);
102static void fw_try_bmr_callback (struct fw_xfer *);
103static void fw_asystart (struct fw_xfer *);
104static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *);
105static void fw_bus_probe (struct firewire_comm *);
106static void fw_bus_explore (struct firewire_comm *);
107static void fw_bus_explore_callback (struct fw_xfer *);
108static void fw_attach_dev (struct firewire_comm *);
109#ifdef FW_VMACCESS
110static void fw_vmaccess (struct fw_xfer *);
111#endif
112struct fw_xfer *asyreqq (struct firewire_comm *, uint8_t, uint8_t, uint8_t,
113 uint32_t, uint32_t, void (*)(struct fw_xfer *));
114static int fw_bmr (struct firewire_comm *);
115
116static device_method_t firewire_methods[] = {
117 /* Device interface */
118 DEVMETHOD(device_identify, firewire_identify),
119 DEVMETHOD(device_probe, firewire_probe),
120 DEVMETHOD(device_attach, firewire_attach),
121 DEVMETHOD(device_detach, firewire_detach),
122 DEVMETHOD(device_suspend, bus_generic_suspend),
123 DEVMETHOD(device_resume, firewire_resume),
124 DEVMETHOD(device_shutdown, bus_generic_shutdown),
125
126 /* Bus interface */
127 DEVMETHOD(bus_add_child, firewire_add_child),
128 DEVMETHOD(bus_print_child, bus_generic_print_child),
129
130 { 0, 0 }
131};
132char *linkspeed[] = {
133 "S100", "S200", "S400", "S800",
134 "S1600", "S3200", "undef", "undef"
135};
136
137static char *tcode_str[] = {
138 "WREQQ", "WREQB", "WRES", "undef",
139 "RREQQ", "RREQB", "RRESQ", "RRESB",
140 "CYCS", "LREQ", "STREAM", "LRES",
141 "undef", "undef", "PHY", "undef"
142};
143
144/* IEEE-1394a Table C-2 Gap count as a function of hops*/
145#define MAX_GAPHOP 15
146u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
147 21, 24, 26, 29, 32, 35, 37, 40};
148
149static driver_t firewire_driver = {
150 "firewire",
151 firewire_methods,
152 sizeof(struct firewire_softc),
153};
154
155/*
156 * Lookup fwdev by node id.
157 */
158struct fw_device *
159fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
160{
161 struct fw_device *fwdev;
162 int s;
163
164 s = splfw();
165 STAILQ_FOREACH(fwdev, &fc->devices, link)
166 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL)
167 break;
168 splx(s);
169
170 return fwdev;
171}
172
173/*
174 * Lookup fwdev by EUI64.
175 */
176struct fw_device *
177fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
178{
179 struct fw_device *fwdev;
180 int s;
181
182 s = splfw();
183 STAILQ_FOREACH(fwdev, &fc->devices, link)
184 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
185 break;
186 splx(s);
187
188 if(fwdev == NULL) return NULL;
189 if(fwdev->status == FWDEVINVAL) return NULL;
190 return fwdev;
191}
192
193/*
194 * Async. request procedure for userland application.
195 */
196int
197fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
198{
199 int err = 0;
200 struct fw_xferq *xferq;
201 int tl = 0, len;
202 struct fw_pkt *fp;
203 int tcode;
204 struct tcode_info *info;
205
206 if(xfer == NULL) return EINVAL;
207 if(xfer->act.hand == NULL){
208 printf("act.hand == NULL\n");
209 return EINVAL;
210 }
211 fp = &xfer->send.hdr;
212
213 tcode = fp->mode.common.tcode & 0xf;
214 info = &fc->tcode[tcode];
215 if (info->flag == 0) {
216 printf("invalid tcode=%x\n", tcode);
217 return EINVAL;
218 }
219 if (info->flag & FWTI_REQ)
220 xferq = fc->atq;
221 else
222 xferq = fc->ats;
223 len = info->hdr_len;
224 if (xfer->send.pay_len > MAXREC(fc->maxrec)) {
225 printf("send.pay_len > maxrec\n");
226 return EINVAL;
227 }
228 if (info->flag & FWTI_BLOCK_STR)
229 len = fp->mode.stream.len;
230 else if (info->flag & FWTI_BLOCK_ASY)
231 len = fp->mode.rresb.len;
232 else
233 len = 0;
234 if (len != xfer->send.pay_len){
235 printf("len(%d) != send.pay_len(%d) %s(%x)\n",
236 len, xfer->send.pay_len, tcode_str[tcode], tcode);
237 return EINVAL;
238 }
239
240 if(xferq->start == NULL){
241 printf("xferq->start == NULL\n");
242 return EINVAL;
243 }
244 if(!(xferq->queued < xferq->maxq)){
245 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
246 xferq->queued);
247 return EINVAL;
248 }
249
250 if (info->flag & FWTI_TLABEL) {
251 if ((tl = fw_get_tlabel(fc, xfer)) == -1)
252 return EAGAIN;
253 fp->mode.hdr.tlrt = tl << 2;
254 }
255
256 xfer->tl = tl;
257 xfer->resp = 0;
258 xfer->fc = fc;
259 xfer->q = xferq;
260 xfer->retry_req = fw_asybusy;
261
262 fw_asystart(xfer);
263 return err;
264}
265/*
266 * Wakeup blocked process.
267 */
268void
269fw_asy_callback(struct fw_xfer *xfer){
270 wakeup(xfer);
271 return;
272}
273/*
274 * Postpone to later retry.
275 */
276void fw_asybusy(struct fw_xfer *xfer){
277 printf("fw_asybusy\n");
278/*
279 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
280*/
281#if 0
282 DELAY(20000);
283#endif
284 fw_asystart(xfer);
285 return;
286}
287
288/*
289 * Async. request with given xfer structure.
290 */
291static void
292fw_asystart(struct fw_xfer *xfer)
293{
294 struct firewire_comm *fc = xfer->fc;
295 int s;
296 if(xfer->retry++ >= fc->max_asyretry){
297 device_printf(fc->bdev, "max_asyretry exceeded\n");
298 xfer->resp = EBUSY;
299 xfer->state = FWXF_BUSY;
300 xfer->act.hand(xfer);
301 return;
302 }
303#if 0 /* XXX allow bus explore packets only after bus rest */
304 if (fc->status < FWBUSEXPLORE) {
305 xfer->resp = EAGAIN;
306 xfer->state = FWXF_BUSY;
307 if (xfer->act.hand != NULL)
308 xfer->act.hand(xfer);
309 return;
310 }
311#endif
312 microtime(&xfer->tv);
313 s = splfw();
314 xfer->state = FWXF_INQ;
315 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
316 xfer->q->queued ++;
317 splx(s);
318 /* XXX just queue for mbuf */
319 if (xfer->mbuf == NULL)
320 xfer->q->start(fc);
321 return;
322}
323
324static void
325firewire_identify(driver_t *driver, device_t parent)
326{
327 BUS_ADD_CHILD(parent, 0, "firewire", -1);
328}
329
330static int
331firewire_probe(device_t dev)
332{
333 device_set_desc(dev, "IEEE1394(FireWire) bus");
334 return (0);
335}
336
337static void
338firewire_xfer_timeout(struct firewire_comm *fc)
339{
340 struct fw_xfer *xfer;
341 struct tlabel *tl;
342 struct timeval tv;
343 struct timeval split_timeout;
344 int i, s;
345
346 split_timeout.tv_sec = 0;
347 split_timeout.tv_usec = 200 * 1000; /* 200 msec */
348
349 microtime(&tv);
350 timevalsub(&tv, &split_timeout);
351
352 s = splfw();
353 for (i = 0; i < 0x40; i ++) {
354 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
355 xfer = tl->xfer;
356 if (timevalcmp(&xfer->tv, &tv, >))
357 /* the rests are newer than this */
358 break;
359 if (xfer->state == FWXF_START)
360 /* not sent yet */
361 break;
362 device_printf(fc->bdev,
363 "split transaction timeout dst=0x%x tl=0x%x state=%d\n",
364 xfer->send.hdr.mode.hdr.dst, i, xfer->state);
365 xfer->resp = ETIMEDOUT;
366 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
367 fw_xfer_done(xfer);
368 }
369 }
370 splx(s);
371}
372
373#define WATCHDOC_HZ 10
374static void
375firewire_watchdog(void *arg)
376{
377 struct firewire_comm *fc;
378 static int watchdoc_clock = 0;
379
380 fc = (struct firewire_comm *)arg;
381
382 /*
383 * At boot stage, the device interrupt is disabled and
384 * We encounter a timeout easily. To avoid this,
385 * ignore clock interrupt for a while.
386 */
387 if (watchdoc_clock > WATCHDOC_HZ * 15) {
388 firewire_xfer_timeout(fc);
389 fc->timeout(fc);
390 } else
391 watchdoc_clock ++;
392
393 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ,
394 (void *)firewire_watchdog, (void *)fc);
395}
396
397/*
398 * The attach routine.
399 */
400static int
401firewire_attach(device_t dev)
402{
403 int unit;
404 struct firewire_softc *sc = device_get_softc(dev);
405 device_t pa = device_get_parent(dev);
406 struct firewire_comm *fc;
407
408 fc = (struct firewire_comm *)device_get_softc(pa);
409 sc->fc = fc;
410 fc->status = FWBUSNOTREADY;
411
412 unit = device_get_unit(dev);
413 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
414
415 fwdev_makedev(sc);
416
417 CALLOUT_INIT(&sc->fc->timeout_callout);
418 CALLOUT_INIT(&sc->fc->bmr_callout);
419 CALLOUT_INIT(&sc->fc->retry_probe_callout);
420 CALLOUT_INIT(&sc->fc->busprobe_callout);
421
422 callout_reset(&sc->fc->timeout_callout, hz,
423 (void *)firewire_watchdog, (void *)sc->fc);
424
425 /* Locate our children */
426 bus_generic_probe(dev);
427
428 /* launch attachement of the added children */
429 bus_generic_attach(dev);
430
431 /* bus_reset */
432 fw_busreset(fc);
433 fc->ibr(fc);
434
435 return 0;
436}
437
438/*
439 * Attach it as child.
440 */
441static device_t
442firewire_add_child(device_t dev, int order, const char *name, int unit)
443{
444 device_t child;
445 struct firewire_softc *sc;
446
447 sc = (struct firewire_softc *)device_get_softc(dev);
448 child = device_add_child(dev, name, unit);
449 if (child) {
450 device_set_ivars(child, sc->fc);
451 device_probe_and_attach(child);
452 }
453
454 return child;
455}
456
457static int
458firewire_resume(device_t dev)
459{
460 struct firewire_softc *sc;
461
462 sc = (struct firewire_softc *)device_get_softc(dev);
463 sc->fc->status = FWBUSNOTREADY;
464
465 bus_generic_resume(dev);
466
467 return(0);
468}
469
470/*
471 * Dettach it.
472 */
473static int
474firewire_detach(device_t dev)
475{
476 struct firewire_softc *sc;
477 struct csrdir *csrd, *next;
478 struct fw_device *fwdev, *fwdev_next;
479 int err;
480
481 sc = (struct firewire_softc *)device_get_softc(dev);
482 if ((err = fwdev_destroydev(sc)) != 0)
483 return err;
484
485 if ((err = bus_generic_detach(dev)) != 0)
486 return err;
487
488 callout_stop(&sc->fc->timeout_callout);
489 callout_stop(&sc->fc->bmr_callout);
490 callout_stop(&sc->fc->retry_probe_callout);
491 callout_stop(&sc->fc->busprobe_callout);
492
493 /* XXX xfree_free and untimeout on all xfers */
494 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL;
495 fwdev = fwdev_next) {
496 fwdev_next = STAILQ_NEXT(fwdev, link);
497 free(fwdev, M_FW);
498 }
499 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) {
500 next = SLIST_NEXT(csrd, link);
501 free(csrd, M_FW);
502 }
503 free(sc->fc->topology_map, M_FW);
504 free(sc->fc->speed_map, M_FW);
505 free(sc->fc->crom_src_buf, M_FW);
506 return(0);
507}
508#if 0
509static int
510firewire_shutdown( device_t dev )
511{
512 return 0;
513}
514#endif
515
516
517static void
518fw_xferq_drain(struct fw_xferq *xferq)
519{
520 struct fw_xfer *xfer;
521
522 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
523 STAILQ_REMOVE_HEAD(&xferq->q, link);
524 xferq->queued --;
525 xfer->resp = EAGAIN;
526 fw_xfer_done(xfer);
527 }
528}
529
530void
531fw_drain_txq(struct firewire_comm *fc)
532{
533 int i;
534
535 fw_xferq_drain(fc->atq);
536 fw_xferq_drain(fc->ats);
537 for(i = 0; i < fc->nisodma; i++)
538 fw_xferq_drain(fc->it[i]);
539}
540
541static void
542fw_reset_csr(struct firewire_comm *fc)
543{
544 int i;
545
546 CSRARC(fc, STATE_CLEAR)
547 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
548 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
549 CSRARC(fc, NODE_IDS) = 0x3f;
550
551 CSRARC(fc, TOPO_MAP + 8) = 0;
552 fc->irm = -1;
553
554 fc->max_node = -1;
555
556 for(i = 2; i < 0x100/4 - 2 ; i++){
557 CSRARC(fc, SPED_MAP + i * 4) = 0;
558 }
559 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
560 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
561 CSRARC(fc, RESET_START) = 0;
562 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
563 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
564 CSRARC(fc, CYCLE_TIME) = 0x0;
565 CSRARC(fc, BUS_TIME) = 0x0;
566 CSRARC(fc, BUS_MGR_ID) = 0x3f;
567 CSRARC(fc, BANDWIDTH_AV) = 4915;
568 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
569 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
570 CSRARC(fc, IP_CHANNELS) = (1 << 31);
571
572 CSRARC(fc, CONF_ROM) = 0x04 << 24;
573 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
574 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
575 1 << 28 | 0xff << 16 | 0x09 << 8;
576 CSRARC(fc, CONF_ROM + 0xc) = 0;
577
578/* DV depend CSRs see blue book */
579 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
580 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
581
582 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
583 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
584}
585
586static void
587fw_init_crom(struct firewire_comm *fc)
588{
589 struct crom_src *src;
590
591 fc->crom_src_buf = (struct crom_src_buf *)
592 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO);
593 if (fc->crom_src_buf == NULL)
594 return;
595
596 src = &fc->crom_src_buf->src;
597 bzero(src, sizeof(struct crom_src));
598
599 /* BUS info sample */
600 src->hdr.info_len = 4;
601
602 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
603
604 src->businfo.irmc = 1;
605 src->businfo.cmc = 1;
606 src->businfo.isc = 1;
607 src->businfo.bmc = 1;
608 src->businfo.pmc = 0;
609 src->businfo.cyc_clk_acc = 100;
610 src->businfo.max_rec = fc->maxrec;
611 src->businfo.max_rom = MAXROM_4;
612 src->businfo.generation = 1;
613 src->businfo.link_spd = fc->speed;
614
615 src->businfo.eui64.hi = fc->eui.hi;
616 src->businfo.eui64.lo = fc->eui.lo;
617
618 STAILQ_INIT(&src->chunk_list);
619
620 fc->crom_src = src;
621 fc->crom_root = &fc->crom_src_buf->root;
622}
623
624static void
625fw_reset_crom(struct firewire_comm *fc)
626{
627 struct crom_src_buf *buf;
628 struct crom_src *src;
629 struct crom_chunk *root;
630
631 if (fc->crom_src_buf == NULL)
632 fw_init_crom(fc);
633
634 buf = fc->crom_src_buf;
635 src = fc->crom_src;
636 root = fc->crom_root;
637
638 STAILQ_INIT(&src->chunk_list);
639
640 bzero(root, sizeof(struct crom_chunk));
641 crom_add_chunk(src, NULL, root, 0);
642 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
643 /* private company_id */
644 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
645#ifdef __DragonFly__
646 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project");
647 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version);
648#else
649 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project");
650 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version);
651#endif
652 crom_add_simple_text(src, root, &buf->hw, hostname);
653}
654
655/*
656 * Called after bus reset.
657 */
658void
659fw_busreset(struct firewire_comm *fc)
660{
661 struct firewire_dev_comm *fdc;
662 struct crom_src *src;
663 device_t *devlistp;
664 void *newrom;
665 int i, devcnt;
666
667 switch(fc->status){
668 case FWBUSMGRELECT:
669 callout_stop(&fc->bmr_callout);
670 break;
671 default:
672 break;
673 }
674 fc->status = FWBUSRESET;
675 fw_reset_csr(fc);
676 fw_reset_crom(fc);
677
678 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) {
679 for( i = 0 ; i < devcnt ; i++)
680 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
681 fdc = device_get_softc(devlistp[i]);
682 if (fdc->post_busreset != NULL)
683 fdc->post_busreset(fdc);
684 }
685 free(devlistp, M_TEMP);
686 }
687
688 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO);
689 src = &fc->crom_src_buf->src;
690 crom_load(src, (uint32_t *)newrom, CROMSIZE);
691 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
692 /* bump generation and reload */
693 src->businfo.generation ++;
694 /* generation must be between 0x2 and 0xF */
695 if (src->businfo.generation < 2)
696 src->businfo.generation ++;
697 crom_load(src, (uint32_t *)newrom, CROMSIZE);
698 bcopy(newrom, (void *)fc->config_rom, CROMSIZE);
699 }
700 free(newrom, M_FW);
701}
702
703/* Call once after reboot */
704void fw_init(struct firewire_comm *fc)
705{
706 int i;
707 struct csrdir *csrd;
708#ifdef FW_VMACCESS
709 struct fw_xfer *xfer;
710 struct fw_bind *fwb;
711#endif
712
713 fc->max_asyretry = FW_MAXASYRTY;
714
715 fc->arq->queued = 0;
716 fc->ars->queued = 0;
717 fc->atq->queued = 0;
718 fc->ats->queued = 0;
719
720 fc->arq->buf = NULL;
721 fc->ars->buf = NULL;
722 fc->atq->buf = NULL;
723 fc->ats->buf = NULL;
724
725 fc->arq->flag = 0;
726 fc->ars->flag = 0;
727 fc->atq->flag = 0;
728 fc->ats->flag = 0;
729
730 STAILQ_INIT(&fc->atq->q);
731 STAILQ_INIT(&fc->ats->q);
732
733 for( i = 0 ; i < fc->nisodma ; i ++ ){
734 fc->it[i]->queued = 0;
735 fc->ir[i]->queued = 0;
736
737 fc->it[i]->start = NULL;
738 fc->ir[i]->start = NULL;
739
740 fc->it[i]->buf = NULL;
741 fc->ir[i]->buf = NULL;
742
743 fc->it[i]->flag = FWXFERQ_STREAM;
744 fc->ir[i]->flag = FWXFERQ_STREAM;
745
746 STAILQ_INIT(&fc->it[i]->q);
747 STAILQ_INIT(&fc->ir[i]->q);
748
749 STAILQ_INIT(&fc->it[i]->binds);
750 STAILQ_INIT(&fc->ir[i]->binds);
751 }
752
753 fc->arq->maxq = FWMAXQUEUE;
754 fc->ars->maxq = FWMAXQUEUE;
755 fc->atq->maxq = FWMAXQUEUE;
756 fc->ats->maxq = FWMAXQUEUE;
757
758 for( i = 0 ; i < fc->nisodma ; i++){
759 fc->ir[i]->maxq = FWMAXQUEUE;
760 fc->it[i]->maxq = FWMAXQUEUE;
761 }
762/* Initialize csr registers */
763 fc->topology_map = (struct fw_topology_map *)malloc(
764 sizeof(struct fw_topology_map),
765 M_FW, M_NOWAIT | M_ZERO);
766 fc->speed_map = (struct fw_speed_map *)malloc(
767 sizeof(struct fw_speed_map),
768 M_FW, M_NOWAIT | M_ZERO);
769 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
770 CSRARC(fc, TOPO_MAP + 4) = 1;
771 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
772 CSRARC(fc, SPED_MAP + 4) = 1;
773
774 STAILQ_INIT(&fc->devices);
775
776/* Initialize csr ROM work space */
777 SLIST_INIT(&fc->ongocsr);
778 SLIST_INIT(&fc->csrfree);
779 for( i = 0 ; i < FWMAXCSRDIR ; i++){
780 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT);
781 if(csrd == NULL) break;
782 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
783 }
784
785/* Initialize Async handlers */
786 STAILQ_INIT(&fc->binds);
787 for( i = 0 ; i < 0x40 ; i++){
788 STAILQ_INIT(&fc->tlabels[i]);
789 }
790
791/* DV depend CSRs see blue book */
792#if 0
793 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
794 CSRARC(fc, oPCR) = 0x8000007a;
795 for(i = 4 ; i < 0x7c/4 ; i+=4){
796 CSRARC(fc, i + oPCR) = 0x8000007a;
797 }
798
799 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
800 CSRARC(fc, iPCR) = 0x803f0000;
801 for(i = 4 ; i < 0x7c/4 ; i+=4){
802 CSRARC(fc, i + iPCR) = 0x0;
803 }
804#endif
805
806 fc->crom_src_buf = NULL;
807
808#ifdef FW_VMACCESS
809 xfer = fw_xfer_alloc();
810 if(xfer == NULL) return;
811
812 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
813 if(fwb == NULL){
814 fw_xfer_free(xfer);
815 }
816 xfer->act.hand = fw_vmaccess;
817 xfer->fc = fc;
818 xfer->sc = NULL;
819
820 fwb->start_hi = 0x2;
821 fwb->start_lo = 0;
822 fwb->addrlen = 0xffffffff;
823 fwb->xfer = xfer;
824 fw_bindadd(fc, fwb);
825#endif
826}
827
828#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\
829 ((fwb)->end < (addr))?1:0)
830
831/*
832 * To lookup bound process from IEEE1394 address.
833 */
834struct fw_bind *
835fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo)
836{
837 u_int64_t addr;
838 struct fw_bind *tfw;
839
840 addr = ((u_int64_t)dest_hi << 32) | dest_lo;
841 STAILQ_FOREACH(tfw, &fc->binds, fclist)
842 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0)
843 return(tfw);
844 return(NULL);
845}
846
847/*
848 * To bind IEEE1394 address block to process.
849 */
850int
851fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
852{
853 struct fw_bind *tfw, *prev = NULL;
854
855 if (fwb->start > fwb->end) {
856 printf("%s: invalid range\n", __func__);
857 return EINVAL;
858 }
859
860 STAILQ_FOREACH(tfw, &fc->binds, fclist) {
861 if (fwb->end < tfw->start)
862 break;
863 prev = tfw;
864 }
865 if (prev == NULL) {
866 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
867 goto out;
868 }
869 if (prev->end < fwb->start) {
870 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist);
871 goto out;
872 }
873
874 printf("%s: bind failed\n", __func__);
875 return (EBUSY);
876
877out:
878 if (fwb->act_type == FWACT_CH)
879 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist);
880 return (0);
881}
882
883/*
884 * To free IEEE1394 address block.
885 */
886int
887fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
888{
889#if 0
890 struct fw_xfer *xfer, *next;
891#endif
892 struct fw_bind *tfw;
893 int s;
894
895 s = splfw();
896 STAILQ_FOREACH(tfw, &fc->binds, fclist)
897 if (tfw == fwb) {
898 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
899 goto found;
900 }
901
902 printf("%s: no such binding\n", __func__);
903 splx(s);
904 return (1);
905found:
906#if 0
907 /* shall we do this? */
908 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
909 next = STAILQ_NEXT(xfer, link);
910 fw_xfer_free(xfer);
911 }
912 STAILQ_INIT(&fwb->xferlist);
913#endif
914
915 splx(s);
916 return 0;
917}
918
919/*
920 * To free transaction label.
921 */
922static void
923fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
924{
925 struct tlabel *tl;
926 int s = splfw();
927
928 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
929 tl = STAILQ_NEXT(tl, link)){
930 if(tl->xfer == xfer){
931 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
932 free(tl, M_FW);
933 splx(s);
934 return;
935 }
936 }
937 splx(s);
938 return;
939}
940
941/*
942 * To obtain XFER structure by transaction label.
943 */
944static struct fw_xfer *
945fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
946{
947 struct fw_xfer *xfer;
948 struct tlabel *tl;
949 int s = splfw();
950
951 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
952 tl = STAILQ_NEXT(tl, link)){
953 if(tl->xfer->send.hdr.mode.hdr.dst == node){
954 xfer = tl->xfer;
955 splx(s);
956 if (firewire_debug > 2)
957 printf("fw_tl2xfer: found tl=%d\n", tlabel);
958 return(xfer);
959 }
960 }
961 if (firewire_debug > 1)
962 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
963 splx(s);
964 return(NULL);
965}
966
967/*
968 * To allocate IEEE1394 XFER structure.
969 */
970struct fw_xfer *
971fw_xfer_alloc(struct malloc_type *type)
972{
973 struct fw_xfer *xfer;
974
975 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
976 if (xfer == NULL)
977 return xfer;
978
979 xfer->malloc = type;
980
981 return xfer;
982}
983
984struct fw_xfer *
985fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
986{
987 struct fw_xfer *xfer;
988
989 xfer = fw_xfer_alloc(type);
990 if (xfer == NULL)
991 return(NULL);
992 xfer->send.pay_len = send_len;
993 xfer->recv.pay_len = recv_len;
994 if (send_len > 0) {
995 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO);
996 if (xfer->send.payload == NULL) {
997 fw_xfer_free(xfer);
998 return(NULL);
999 }
1000 }
1001 if (recv_len > 0) {
1002 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT);
1003 if (xfer->recv.payload == NULL) {
1004 if (xfer->send.payload != NULL)
1005 free(xfer->send.payload, type);
1006 fw_xfer_free(xfer);
1007 return(NULL);
1008 }
1009 }
1010 return(xfer);
1011}
1012
1013/*
1014 * IEEE1394 XFER post process.
1015 */
1016void
1017fw_xfer_done(struct fw_xfer *xfer)
1018{
1019 if (xfer->act.hand == NULL) {
1020 printf("act.hand == NULL\n");
1021 return;
1022 }
1023
1024 if (xfer->fc == NULL)
1025 panic("fw_xfer_done: why xfer->fc is NULL?");
1026
1027 xfer->act.hand(xfer);
1028}
1029
1030void
1031fw_xfer_unload(struct fw_xfer* xfer)
1032{
1033 int s;
1034
1035 if(xfer == NULL ) return;
1036 if(xfer->state == FWXF_INQ){
1037 printf("fw_xfer_free FWXF_INQ\n");
1038 s = splfw();
1039 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
1040 xfer->q->queued --;
1041 splx(s);
1042 }
1043 if (xfer->fc != NULL) {
1044#if 1
1045 if(xfer->state == FWXF_START)
1046 /*
1047 * This could happen if:
1048 * 1. We call fwohci_arcv() before fwohci_txd().
1049 * 2. firewire_watch() is called.
1050 */
1051 printf("fw_xfer_free FWXF_START\n");
1052#endif
1053 fw_tl_free(xfer->fc, xfer);
1054 }
1055 xfer->state = FWXF_INIT;
1056 xfer->resp = 0;
1057 xfer->retry = 0;
1058}
1059/*
1060 * To free IEEE1394 XFER structure.
1061 */
1062void
1063fw_xfer_free_buf( struct fw_xfer* xfer)
1064{
1065 if (xfer == NULL) {
1066 printf("%s: xfer == NULL\n", __func__);
1067 return;
1068 }
1069 fw_xfer_unload(xfer);
1070 if(xfer->send.payload != NULL){
1071 free(xfer->send.payload, xfer->malloc);
1072 }
1073 if(xfer->recv.payload != NULL){
1074 free(xfer->recv.payload, xfer->malloc);
1075 }
1076 free(xfer, xfer->malloc);
1077}
1078
1079void
1080fw_xfer_free( struct fw_xfer* xfer)
1081{
1082 if (xfer == NULL) {
1083 printf("%s: xfer == NULL\n", __func__);
1084 return;
1085 }
1086 fw_xfer_unload(xfer);
1087 free(xfer, xfer->malloc);
1088}
1089
1090void
1091fw_asy_callback_free(struct fw_xfer *xfer)
1092{
1093#if 0
1094 printf("asyreq done state=%d resp=%d\n",
1095 xfer->state, xfer->resp);
1096#endif
1097 fw_xfer_free(xfer);
1098}
1099
1100/*
1101 * To configure PHY.
1102 */
1103static void
1104fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
1105{
1106 struct fw_xfer *xfer;
1107 struct fw_pkt *fp;
1108
1109 fc->status = FWBUSPHYCONF;
1110
1111 xfer = fw_xfer_alloc(M_FWXFER);
1112 if (xfer == NULL)
1113 return;
1114 xfer->fc = fc;
1115 xfer->retry_req = fw_asybusy;
1116 xfer->act.hand = fw_asy_callback_free;
1117
1118 fp = &xfer->send.hdr;
1119 fp->mode.ld[1] = 0;
1120 if (root_node >= 0)
1121 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23;
1122 if (gap_count >= 0)
1123 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16;
1124 fp->mode.ld[2] = ~fp->mode.ld[1];
1125/* XXX Dangerous, how to pass PHY packet to device driver */
1126 fp->mode.common.tcode |= FWTCODE_PHY;
1127
1128 if (firewire_debug)
1129 printf("send phy_config root_node=%d gap_count=%d\n",
1130 root_node, gap_count);
1131 fw_asyreq(fc, -1, xfer);
1132}
1133
1134#if 0
1135/*
1136 * Dump self ID.
1137 */
1138static void
1139fw_print_sid(uint32_t sid)
1140{
1141 union fw_self_id *s;
1142 s = (union fw_self_id *) &sid;
1143 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1144 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1145 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1146 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1147 s->p0.power_class, s->p0.port0, s->p0.port1,
1148 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1149}
1150#endif
1151
1152/*
1153 * To receive self ID.
1154 */
1155void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len)
1156{
1157 uint32_t *p;
1158 union fw_self_id *self_id;
1159 u_int i, j, node, c_port = 0, i_branch = 0;
1160
1161 fc->sid_cnt = len /(sizeof(uint32_t) * 2);
1162 fc->status = FWBUSINIT;
1163 fc->max_node = fc->nodeid & 0x3f;
1164 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16;
1165 fc->status = FWBUSCYMELECT;
1166 fc->topology_map->crc_len = 2;
1167 fc->topology_map->generation ++;
1168 fc->topology_map->self_id_count = 0;
1169 fc->topology_map->node_count = 0;
1170 fc->speed_map->generation ++;
1171 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1172 self_id = &fc->topology_map->self_id[0];
1173 for(i = 0; i < fc->sid_cnt; i ++){
1174 if (sid[1] != ~sid[0]) {
1175 printf("fw_sidrcv: invalid self-id packet\n");
1176 sid += 2;
1177 continue;
1178 }
1179 *self_id = *((union fw_self_id *)sid);
1180 fc->topology_map->crc_len++;
1181 if(self_id->p0.sequel == 0){
1182 fc->topology_map->node_count ++;
1183 c_port = 0;
1184#if 0
1185 fw_print_sid(sid[0]);
1186#endif
1187 node = self_id->p0.phy_id;
1188 if(fc->max_node < node){
1189 fc->max_node = self_id->p0.phy_id;
1190 }
1191 /* XXX I'm not sure this is the right speed_map */
1192 fc->speed_map->speed[node][node]
1193 = self_id->p0.phy_speed;
1194 for (j = 0; j < node; j ++) {
1195 fc->speed_map->speed[j][node]
1196 = fc->speed_map->speed[node][j]
1197 = min(fc->speed_map->speed[j][j],
1198 self_id->p0.phy_speed);
1199 }
1200 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1201 (self_id->p0.link_active && self_id->p0.contender)) {
1202 fc->irm = self_id->p0.phy_id;
1203 }
1204 if(self_id->p0.port0 >= 0x2){
1205 c_port++;
1206 }
1207 if(self_id->p0.port1 >= 0x2){
1208 c_port++;
1209 }
1210 if(self_id->p0.port2 >= 0x2){
1211 c_port++;
1212 }
1213 }
1214 if(c_port > 2){
1215 i_branch += (c_port - 2);
1216 }
1217 sid += 2;
1218 self_id++;
1219 fc->topology_map->self_id_count ++;
1220 }
1221 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1222 /* CRC */
1223 fc->topology_map->crc = fw_crc16(
1224 (uint32_t *)&fc->topology_map->generation,
1225 fc->topology_map->crc_len * 4);
1226 fc->speed_map->crc = fw_crc16(
1227 (uint32_t *)&fc->speed_map->generation,
1228 fc->speed_map->crc_len * 4);
1229 /* byteswap and copy to CSR */
1230 p = (uint32_t *)fc->topology_map;
1231 for (i = 0; i <= fc->topology_map->crc_len; i++)
1232 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1233 p = (uint32_t *)fc->speed_map;
1234 CSRARC(fc, SPED_MAP) = htonl(*p++);
1235 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1236 /* don't byte-swap uint8_t array */
1237 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1238
1239 fc->max_hop = fc->max_node - i_branch;
1240 printf(", maxhop <= %d", fc->max_hop);
1241
1242 if(fc->irm == -1 ){
1243 printf(", Not found IRM capable node");
1244 }else{
1245 printf(", cable IRM = %d", fc->irm);
1246 if (fc->irm == fc->nodeid)
1247 printf(" (me)");
1248 }
1249 printf("\n");
1250
1251 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1252 if (fc->irm == fc->nodeid) {
1253 fc->status = FWBUSMGRDONE;
1254 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1255 fw_bmr(fc);
1256 } else {
1257 fc->status = FWBUSMGRELECT;
1258 callout_reset(&fc->bmr_callout, hz/8,
1259 (void *)fw_try_bmr, (void *)fc);
1260 }
1261 } else
1262 fc->status = FWBUSMGRDONE;
1263
1264 callout_reset(&fc->busprobe_callout, hz/4,
1265 (void *)fw_bus_probe, (void *)fc);
1266}
1267
1268/*
1269 * To probe devices on the IEEE1394 bus.
1270 */
1271static void
1272fw_bus_probe(struct firewire_comm *fc)
1273{
1274 int s;
1275 struct fw_device *fwdev;
1276
1277 s = splfw();
1278 fc->status = FWBUSEXPLORE;
1279 fc->retry_count = 0;
1280
1281 /* Invalidate all devices, just after bus reset. */
1282 STAILQ_FOREACH(fwdev, &fc->devices, link)
1283 if (fwdev->status != FWDEVINVAL) {
1284 fwdev->status = FWDEVINVAL;
1285 fwdev->rcnt = 0;
1286 }
1287
1288 fc->ongonode = 0;
1289 fc->ongoaddr = CSRROMOFF;
1290 fc->ongodev = NULL;
1291 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1292 fw_bus_explore(fc);
1293 splx(s);
1294}
1295
1296/*
1297 * Find the self_id packet for a node, ignoring sequels.
1298 */
1299static union fw_self_id *
1300fw_find_self_id(struct firewire_comm *fc, int node)
1301{
1302 uint32_t i;
1303 union fw_self_id *s;
1304
1305 for (i = 0; i < fc->topology_map->self_id_count; i++) {
1306 s = &fc->topology_map->self_id[i];
1307 if (s->p0.sequel)
1308 continue;
1309 if (s->p0.phy_id == node)
1310 return s;
1311 }
1312 return 0;
1313}
1314
1315/*
1316 * To collect device informations on the IEEE1394 bus.
1317 */
1318static void
1319fw_bus_explore(struct firewire_comm *fc )
1320{
1321 int err = 0;
1322 struct fw_device *fwdev, *pfwdev, *tfwdev;
1323 uint32_t addr;
1324 struct fw_xfer *xfer;
1325 struct fw_pkt *fp;
1326
1327 if(fc->status != FWBUSEXPLORE)
1328 return;
1329
1330loop:
1331 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1332
1333 if(fc->ongonode > fc->max_node) goto done;
1334 if(fc->ongonode >= 0x3f) goto done;
1335
1336 /* check link */
1337 /* XXX we need to check phy_id first */
1338 if (!fw_find_self_id(fc, fc->ongonode)->p0.link_active) {
1339 if (firewire_debug)
1340 printf("node%d: link down\n", fc->ongonode);
1341 fc->ongonode++;
1342 goto loop;
1343 }
1344
1345 if(fc->ongoaddr <= CSRROMOFF &&
1346 fc->ongoeui.hi == 0xffffffff &&
1347 fc->ongoeui.lo == 0xffffffff ){
1348 fc->ongoaddr = CSRROMOFF;
1349 addr = 0xf0000000 | fc->ongoaddr;
1350 }else if(fc->ongoeui.hi == 0xffffffff ){
1351 fc->ongoaddr = CSRROMOFF + 0xc;
1352 addr = 0xf0000000 | fc->ongoaddr;
1353 }else if(fc->ongoeui.lo == 0xffffffff ){
1354 fc->ongoaddr = CSRROMOFF + 0x10;
1355 addr = 0xf0000000 | fc->ongoaddr;
1356 }else if(fc->ongodev == NULL){
1357 STAILQ_FOREACH(fwdev, &fc->devices, link)
1358 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1359 break;
1360 if(fwdev != NULL){
1361 fwdev->dst = fc->ongonode;
1362 fwdev->status = FWDEVINIT;
1363 fc->ongodev = fwdev;
1364 fc->ongoaddr = CSRROMOFF;
1365 addr = 0xf0000000 | fc->ongoaddr;
1366 goto dorequest;
1367 }
1368 fwdev = malloc(sizeof(struct fw_device), M_FW,
1369 M_NOWAIT | M_ZERO);
1370 if(fwdev == NULL)
1371 return;
1372 fwdev->fc = fc;
1373 fwdev->rommax = 0;
1374 fwdev->dst = fc->ongonode;
1375 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1376 fwdev->status = FWDEVINIT;
1377 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1378
1379 pfwdev = NULL;
1380 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1381 if (tfwdev->eui.hi > fwdev->eui.hi ||
1382 (tfwdev->eui.hi == fwdev->eui.hi &&
1383 tfwdev->eui.lo > fwdev->eui.lo))
1384 break;
1385 pfwdev = tfwdev;
1386 }
1387 if (pfwdev == NULL)
1388 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1389 else
1390 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1391
1392 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1393 linkspeed[fwdev->speed],
1394 fc->ongoeui.hi, fc->ongoeui.lo);
1395
1396 fc->ongodev = fwdev;
1397 fc->ongoaddr = CSRROMOFF;
1398 addr = 0xf0000000 | fc->ongoaddr;
1399 }else{
1400 addr = 0xf0000000 | fc->ongoaddr;
1401 }
1402dorequest:
1403#if 0
1404 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1405 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1406 fw_bus_explore_callback);
1407 if(xfer == NULL) goto done;
1408#else
1409 xfer = fw_xfer_alloc(M_FWXFER);
1410 if(xfer == NULL){
1411 goto done;
1412 }
1413 xfer->send.spd = 0;
1414 fp = &xfer->send.hdr;
1415 fp->mode.rreqq.dest_hi = 0xffff;
1416 fp->mode.rreqq.tlrt = 0;
1417 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1418 fp->mode.rreqq.pri = 0;
1419 fp->mode.rreqq.src = 0;
1420 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode;
1421 fp->mode.rreqq.dest_lo = addr;
1422 xfer->act.hand = fw_bus_explore_callback;
1423
1424 if (firewire_debug)
1425 printf("node%d: explore addr=0x%x\n",
1426 fc->ongonode, fc->ongoaddr);
1427 err = fw_asyreq(fc, -1, xfer);
1428 if(err){
1429 fw_xfer_free( xfer);
1430 return;
1431 }
1432#endif
1433 return;
1434done:
1435 /* fw_attach_devs */
1436 fc->status = FWBUSEXPDONE;
1437 if (firewire_debug)
1438 printf("bus_explore done\n");
1439 fw_attach_dev(fc);
1440 return;
1441
1442}
1443
1444/* Portable Async. request read quad */
1445struct fw_xfer *
1446asyreqq(struct firewire_comm *fc, uint8_t spd, uint8_t tl, uint8_t rt,
1447 uint32_t addr_hi, uint32_t addr_lo,
1448 void (*hand) (struct fw_xfer*))
1449{
1450 struct fw_xfer *xfer;
1451 struct fw_pkt *fp;
1452 int err;
1453
1454 xfer = fw_xfer_alloc(M_FWXFER);
1455 if (xfer == NULL)
1456 return NULL;
1457
1458 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */
1459 fp = &xfer->send.hdr;
1460 fp->mode.rreqq.dest_hi = addr_hi & 0xffff;
1461 if(tl & FWP_TL_VALID){
1462 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1463 }else{
1464 fp->mode.rreqq.tlrt = 0;
1465 }
1466 fp->mode.rreqq.tlrt |= rt & 0x3;
1467 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1468 fp->mode.rreqq.pri = 0;
1469 fp->mode.rreqq.src = 0;
1470 fp->mode.rreqq.dst = addr_hi >> 16;
1471 fp->mode.rreqq.dest_lo = addr_lo;
1472 xfer->act.hand = hand;
1473
1474 err = fw_asyreq(fc, -1, xfer);
1475 if(err){
1476 fw_xfer_free( xfer);
1477 return NULL;
1478 }
1479 return xfer;
1480}
1481
1482/*
1483 * Callback for the IEEE1394 bus information collection.
1484 */
1485static void
1486fw_bus_explore_callback(struct fw_xfer *xfer)
1487{
1488 struct firewire_comm *fc;
1489 struct fw_pkt *sfp,*rfp;
1490 struct csrhdr *chdr;
1491 struct csrdir *csrd;
1492 struct csrreg *csrreg;
1493 uint32_t offset;
1494
1495
1496 if(xfer == NULL) {
1497 printf("xfer == NULL\n");
1498 return;
1499 }
1500 fc = xfer->fc;
1501
1502 if (firewire_debug)
1503 printf("node%d: callback addr=0x%x\n",
1504 fc->ongonode, fc->ongoaddr);
1505
1506 if(xfer->resp != 0){
1507 device_printf(fc->bdev,
1508 "bus_explore node=%d addr=0x%x resp=%d retry=%d\n",
1509 fc->ongonode, fc->ongoaddr, xfer->resp, xfer->retry);
1510 if (xfer->retry < fc->max_asyretry) {
1511 fw_asystart(xfer);
1512 return;
1513 }
1514 goto errnode;
1515 }
1516
1517 sfp = &xfer->send.hdr;
1518 rfp = &xfer->recv.hdr;
1519#if 0
1520 {
1521 uint32_t *qld;
1522 int i;
1523 qld = (uint32_t *)xfer->recv.buf;
1524 printf("len:%d\n", xfer->recv.len);
1525 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1526 printf("0x%08x ", rfp->mode.ld[i/4]);
1527 if((i % 16) == 15) printf("\n");
1528 }
1529 if((i % 16) != 15) printf("\n");
1530 }
1531#endif
1532 if(fc->ongodev == NULL){
1533 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){
1534 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1535 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1536/* If CSR is minimal confinguration, more investigation is not needed. */
1537 if(chdr->info_len == 1){
1538 if (firewire_debug)
1539 printf("node%d: minimal config\n",
1540 fc->ongonode);
1541 goto nextnode;
1542 }else{
1543 fc->ongoaddr = CSRROMOFF + 0xc;
1544 }
1545 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){
1546 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1547 fc->ongoaddr = CSRROMOFF + 0x10;
1548 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){
1549 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1550 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1551 if (firewire_debug)
1552 printf("node%d: eui64 is zero.\n",
1553 fc->ongonode);
1554 goto nextnode;
1555 }
1556 fc->ongoaddr = CSRROMOFF;
1557 }
1558 }else{
1559 if (fc->ongoaddr == CSRROMOFF &&
1560 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) {
1561 fc->ongodev->status = FWDEVATTACHED;
1562 goto nextnode;
1563 }
1564 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1565 if(fc->ongoaddr > fc->ongodev->rommax){
1566 fc->ongodev->rommax = fc->ongoaddr;
1567 }
1568 csrd = SLIST_FIRST(&fc->ongocsr);
1569 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1570 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1571 offset = CSRROMOFF;
1572 }else{
1573 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1574 offset = csrd->off;
1575 }
1576 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1577 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1578 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1579 csrd = SLIST_FIRST(&fc->csrfree);
1580 if(csrd == NULL){
1581 goto nextnode;
1582 }else{
1583 csrd->ongoaddr = fc->ongoaddr;
1584 fc->ongoaddr += csrreg->val * 4;
1585 csrd->off = fc->ongoaddr;
1586 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1587 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1588 goto nextaddr;
1589 }
1590 }
1591 }
1592 fc->ongoaddr += 4;
1593 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1594 (fc->ongodev->rommax < 0x414)){
1595 if(fc->ongodev->rommax <= 0x414){
1596 csrd = SLIST_FIRST(&fc->csrfree);
1597 if(csrd == NULL) goto nextnode;
1598 csrd->off = fc->ongoaddr;
1599 csrd->ongoaddr = fc->ongoaddr;
1600 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1601 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1602 }
1603 goto nextaddr;
1604 }
1605
1606 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1607 if(csrd == NULL){
1608 goto nextnode;
1609 };
1610 fc->ongoaddr = csrd->ongoaddr + 4;
1611 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1612 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1613 csrd = SLIST_FIRST(&fc->ongocsr);
1614 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1615 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1616 offset = CSRROMOFF;
1617 }else{
1618 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1619 offset = csrd->off;
1620 }
1621 }
1622 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1623 goto nextnode;
1624 }
1625 }
1626nextaddr:
1627 fw_xfer_free( xfer);
1628 fw_bus_explore(fc);
1629 return;
1630errnode:
1631 fc->retry_count++;
1632 if (fc->ongodev != NULL) {
1633 fc->ongodev->status = FWDEVINVAL;
1634 /* Invalidate ROM */
1635 fc->ongodev->csrrom[0] = 0;
1636 }
1637nextnode:
1638 fw_xfer_free( xfer);
1639 fc->ongonode++;
1640/* housekeeping work space */
1641 fc->ongoaddr = CSRROMOFF;
1642 fc->ongodev = NULL;
1643 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1644 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1645 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1646 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1647 }
1648 fw_bus_explore(fc);
1649 return;
1650}
1651
1652/*
1653 * To attach sub-devices layer onto IEEE1394 bus.
1654 */
1655static void
1656fw_attach_dev(struct firewire_comm *fc)
1657{
1658 struct fw_device *fwdev, *next;
1659 int i, err;
1660 device_t *devlistp;
1661 int devcnt;
1662 struct firewire_dev_comm *fdc;
1663
1664 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1665 next = STAILQ_NEXT(fwdev, link);
1666 if (fwdev->status == FWDEVINIT) {
1667 fwdev->status = FWDEVATTACHED;
1668 } else if (fwdev->status == FWDEVINVAL) {
1669 fwdev->rcnt ++;
1670 if (fwdev->rcnt > hold_count) {
1671 /*
1672 * Remove devices which have not been seen
1673 * for a while.
1674 */
1675 STAILQ_REMOVE(&fc->devices, fwdev, fw_device,
1676 link);
1677 free(fwdev, M_FW);
1678 }
1679 }
1680 }
1681
1682 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1683 if( err != 0 )
1684 return;
1685 for( i = 0 ; i < devcnt ; i++){
1686 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1687 fdc = device_get_softc(devlistp[i]);
1688 if (fdc->post_explore != NULL)
1689 fdc->post_explore(fdc);
1690 }
1691 }
1692 free(devlistp, M_TEMP);
1693
1694 if (fc->retry_count > 0) {
1695 device_printf(fc->bdev, "bus_explore failed for %d nodes\n",
1696 fc->retry_count);
1697#if 0
1698 callout_reset(&fc->retry_probe_callout, hz*2,
1699 (void *)fc->ibr, (void *)fc);
1700#endif
1701 }
1702 return;
1703}
1704
1705/*
1706 * To allocate unique transaction label.
1707 */
1708static int
1709fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1710{
1711 u_int i;
1712 struct tlabel *tl, *tmptl;
1713 int s;
1714 static uint32_t label = 0;
1715
1716 s = splfw();
1717 for( i = 0 ; i < 0x40 ; i ++){
1718 label = (label + 1) & 0x3f;
1719 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1720 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1721 if (tmptl->xfer->send.hdr.mode.hdr.dst ==
1722 xfer->send.hdr.mode.hdr.dst)
1723 break;
1724 }
1725 if(tmptl == NULL) {
1726 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT);
1727 if (tl == NULL) {
1728 splx(s);
1729 return (-1);
1730 }
1731 tl->xfer = xfer;
1732 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1733 splx(s);
1734 if (firewire_debug > 1)
1735 printf("fw_get_tlabel: dst=%d tl=%d\n",
1736 xfer->send.hdr.mode.hdr.dst, label);
1737 return(label);
1738 }
1739 }
1740 splx(s);
1741
1742 if (firewire_debug > 1)
1743 printf("fw_get_tlabel: no free tlabel\n");
1744 return(-1);
1745}
1746
1747static void
1748fw_rcv_copy(struct fw_rcv_buf *rb)
1749{
1750 struct fw_pkt *pkt;
1751 u_char *p;
1752 struct tcode_info *tinfo;
1753 u_int res, i, len, plen;
1754
1755 rb->xfer->recv.spd -= rb->spd;
1756
1757 pkt = (struct fw_pkt *)rb->vec->iov_base;
1758 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode];
1759
1760 /* Copy header */
1761 p = (u_char *)&rb->xfer->recv.hdr;
1762 bcopy(rb->vec->iov_base, p, tinfo->hdr_len);
1763 (u_char *)rb->vec->iov_base += tinfo->hdr_len;
1764 rb->vec->iov_len -= tinfo->hdr_len;
1765
1766 /* Copy payload */
1767 p = (u_char *)rb->xfer->recv.payload;
1768 res = rb->xfer->recv.pay_len;
1769
1770 /* special handling for RRESQ */
1771 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ &&
1772 p != NULL && res >= sizeof(uint32_t)) {
1773 *(uint32_t *)p = pkt->mode.rresq.data;
1774 rb->xfer->recv.pay_len = sizeof(uint32_t);
1775 return;
1776 }
1777
1778 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0)
1779 return;
1780
1781 plen = pkt->mode.rresb.len;
1782
1783 for (i = 0; i < rb->nvec; i++, rb->vec++) {
1784 len = MIN(rb->vec->iov_len, plen);
1785 if (res < len) {
1786 printf("rcv buffer(%d) is %d bytes short.\n",
1787 rb->xfer->recv.pay_len, len - res);
1788 len = res;
1789 }
1790 bcopy(rb->vec->iov_base, p, len);
1791 p += len;
1792 res -= len;
1793 plen -= len;
1794 if (res == 0 || plen == 0)
1795 break;
1796 }
1797 rb->xfer->recv.pay_len -= res;
1798
1799}
1800
1801/*
1802 * Generic packet receiving process.
1803 */
1804void
1805fw_rcv(struct fw_rcv_buf *rb)
1806{
1807 struct fw_pkt *fp, *resfp;
1808 struct fw_bind *bind;
1809 int tcode, s;
1810 int i, len, oldstate;
1811#if 0
1812 {
1813 uint32_t *qld;
1814 int i;
1815 qld = (uint32_t *)buf;
1816 printf("spd %d len:%d\n", spd, len);
1817 for( i = 0 ; i <= len && i < 32; i+= 4){
1818 printf("0x%08x ", ntohl(qld[i/4]));
1819 if((i % 16) == 15) printf("\n");
1820 }
1821 if((i % 16) != 15) printf("\n");
1822 }
1823#endif
1824 fp = (struct fw_pkt *)rb->vec[0].iov_base;
1825 tcode = fp->mode.common.tcode;
1826 switch (tcode) {
1827 case FWTCODE_WRES:
1828 case FWTCODE_RRESQ:
1829 case FWTCODE_RRESB:
1830 case FWTCODE_LRES:
1831 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1832 fp->mode.hdr.tlrt >> 2);
1833 if(rb->xfer == NULL) {
1834 printf("fw_rcv: unknown response "
1835 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n",
1836 tcode_str[tcode], tcode,
1837 fp->mode.hdr.src,
1838 fp->mode.hdr.tlrt >> 2,
1839 fp->mode.hdr.tlrt & 3,
1840 fp->mode.rresq.data);
1841#if 1
1842 printf("try ad-hoc work around!!\n");
1843 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1844 (fp->mode.hdr.tlrt >> 2)^3);
1845 if (rb->xfer == NULL) {
1846 printf("no use...\n");
1847 goto err;
1848 }
1849#else
1850 goto err;
1851#endif
1852 }
1853 fw_rcv_copy(rb);
1854 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP)
1855 rb->xfer->resp = EIO;
1856 else
1857 rb->xfer->resp = 0;
1858 /* make sure the packet is drained in AT queue */
1859 oldstate = rb->xfer->state;
1860 rb->xfer->state = FWXF_RCVD;
1861 switch (oldstate) {
1862 case FWXF_SENT:
1863 fw_xfer_done(rb->xfer);
1864 break;
1865 case FWXF_START:
1866#if 0
1867 if (firewire_debug)
1868 printf("not sent yet tl=%x\n", rb->xfer->tl);
1869#endif
1870 break;
1871 default:
1872 printf("unexpected state %d\n", rb->xfer->state);
1873 }
1874 return;
1875 case FWTCODE_WREQQ:
1876 case FWTCODE_WREQB:
1877 case FWTCODE_RREQQ:
1878 case FWTCODE_RREQB:
1879 case FWTCODE_LREQ:
1880 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi,
1881 fp->mode.rreqq.dest_lo);
1882 if(bind == NULL){
1883 printf("Unknown service addr 0x%04x:0x%08x %s(%x)"
1884#if defined(__DragonFly__) || __FreeBSD_version < 500000
1885 " src=0x%x data=%lx\n",
1886#else
1887 " src=0x%x data=%x\n",
1888#endif
1889 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo,
1890 tcode_str[tcode], tcode,
1891 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data));
1892 if (rb->fc->status == FWBUSRESET) {
1893 printf("fw_rcv: cannot respond(bus reset)!\n");
1894 goto err;
1895 }
1896 rb->xfer = fw_xfer_alloc(M_FWXFER);
1897 if(rb->xfer == NULL){
1898 return;
1899 }
1900 rb->xfer->send.spd = rb->spd;
1901 rb->xfer->send.pay_len = 0;
1902 resfp = &rb->xfer->send.hdr;
1903 switch (tcode) {
1904 case FWTCODE_WREQQ:
1905 case FWTCODE_WREQB:
1906 resfp->mode.hdr.tcode = FWTCODE_WRES;
1907 break;
1908 case FWTCODE_RREQQ:
1909 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1910 break;
1911 case FWTCODE_RREQB:
1912 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1913 break;
1914 case FWTCODE_LREQ:
1915 resfp->mode.hdr.tcode = FWTCODE_LRES;
1916 break;
1917 }
1918 resfp->mode.hdr.dst = fp->mode.hdr.src;
1919 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1920 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1921 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR;
1922 resfp->mode.rresb.extcode = 0;
1923 resfp->mode.rresb.len = 0;
1924/*
1925 rb->xfer->act.hand = fw_asy_callback;
1926*/
1927 rb->xfer->act.hand = fw_xfer_free;
1928 if(fw_asyreq(rb->fc, -1, rb->xfer)){
1929 fw_xfer_free(rb->xfer);
1930 return;
1931 }
1932 goto err;
1933 }
1934 len = 0;
1935 for (i = 0; i < rb->nvec; i ++)
1936 len += rb->vec[i].iov_len;
1937 switch(bind->act_type){
1938 case FWACT_XFER:
1939 /* splfw()?? */
1940 rb->xfer = STAILQ_FIRST(&bind->xferlist);
1941 if (rb->xfer == NULL) {
1942 printf("Discard a packet for this bind.\n");
1943 goto err;
1944 }
1945 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1946 fw_rcv_copy(rb);
1947 rb->xfer->act.hand(rb->xfer);
1948 return;
1949 break;
1950 case FWACT_CH:
1951 if(rb->fc->ir[bind->sub]->queued >=
1952 rb->fc->ir[bind->sub]->maxq){
1953 device_printf(rb->fc->bdev,
1954 "Discard a packet %x %d\n",
1955 bind->sub,
1956 rb->fc->ir[bind->sub]->queued);
1957 goto err;
1958 }
1959 rb->xfer = STAILQ_FIRST(&bind->xferlist);
1960 if (rb->xfer == NULL) {
1961 printf("Discard packet for this bind\n");
1962 goto err;
1963 }
1964 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1965 fw_rcv_copy(rb);
1966 s = splfw();
1967 rb->fc->ir[bind->sub]->queued++;
1968 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q,
1969 rb->xfer, link);
1970 splx(s);
1971
1972 wakeup((caddr_t)rb->fc->ir[bind->sub]);
1973
1974 return;
1975 break;
1976 default:
1977 goto err;
1978 break;
1979 }
1980 break;
1981#if 0 /* shouldn't happen ?? or for GASP */
1982 case FWTCODE_STREAM:
1983 {
1984 struct fw_xferq *xferq;
1985
1986 xferq = rb->fc->ir[sub];
1987#if 0
1988 printf("stream rcv dma %d len %d off %d spd %d\n",
1989 sub, len, off, spd);
1990#endif
1991 if(xferq->queued >= xferq->maxq) {
1992 printf("receive queue is full\n");
1993 goto err;
1994 }
1995 /* XXX get xfer from xfer queue, we don't need copy for
1996 per packet mode */
1997 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
1998 vec[0].iov_len);
1999 if (rb->xfer == NULL) goto err;
2000 fw_rcv_copy(rb)
2001 s = splfw();
2002 xferq->queued++;
2003 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link);
2004 splx(s);
2005 sc = device_get_softc(rb->fc->bdev);
2006#if defined(__DragonFly__) || __FreeBSD_version < 500000
2007 if (&xferq->rsel.si_pid != 0)
2008#else
2009 if (SEL_WAITING(&xferq->rsel))
2010#endif
2011 selwakeuppri(&xferq->rsel, FWPRI);
2012 if (xferq->flag & FWXFERQ_WAKEUP) {
2013 xferq->flag &= ~FWXFERQ_WAKEUP;
2014 wakeup((caddr_t)xferq);
2015 }
2016 if (xferq->flag & FWXFERQ_HANDLER) {
2017 xferq->hand(xferq);
2018 }
2019 return;
2020 break;
2021 }
2022#endif
2023 default:
2024 printf("fw_rcv: unknow tcode %d\n", tcode);
2025 break;
2026 }
2027err:
2028 return;
2029}
2030
2031/*
2032 * Post process for Bus Manager election process.
2033 */
2034static void
2035fw_try_bmr_callback(struct fw_xfer *xfer)
2036{
2037 struct firewire_comm *fc;
2038 int bmr;
2039
2040 if (xfer == NULL)
2041 return;
2042 fc = xfer->fc;
2043 if (xfer->resp != 0)
2044 goto error;
2045 if (xfer->recv.payload == NULL)
2046 goto error;
2047 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE)
2048 goto error;
2049
2050 bmr = ntohl(xfer->recv.payload[0]);
2051 if (bmr == 0x3f)
2052 bmr = fc->nodeid;
2053
2054 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
2055 fw_xfer_free_buf(xfer);
2056 fw_bmr(fc);
2057 return;
2058
2059error:
2060 device_printf(fc->bdev, "bus manager election failed\n");
2061 fw_xfer_free_buf(xfer);
2062}
2063
2064
2065/*
2066 * To candidate Bus Manager election process.
2067 */
2068static void
2069fw_try_bmr(void *arg)
2070{
2071 struct fw_xfer *xfer;
2072 struct firewire_comm *fc = (struct firewire_comm *)arg;
2073 struct fw_pkt *fp;
2074 int err = 0;
2075
2076 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4);
2077 if(xfer == NULL){
2078 return;
2079 }
2080 xfer->send.spd = 0;
2081 fc->status = FWBUSMGRELECT;
2082
2083 fp = &xfer->send.hdr;
2084 fp->mode.lreq.dest_hi = 0xffff;
2085 fp->mode.lreq.tlrt = 0;
2086 fp->mode.lreq.tcode = FWTCODE_LREQ;
2087 fp->mode.lreq.pri = 0;
2088 fp->mode.lreq.src = 0;
2089 fp->mode.lreq.len = 8;
2090 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP;
2091 fp->mode.lreq.dst = FWLOCALBUS | fc->irm;
2092 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
2093 xfer->send.payload[0] = htonl(0x3f);
2094 xfer->send.payload[1] = htonl(fc->nodeid);
2095 xfer->act.hand = fw_try_bmr_callback;
2096
2097 err = fw_asyreq(fc, -1, xfer);
2098 if(err){
2099 fw_xfer_free_buf(xfer);
2100 return;
2101 }
2102 return;
2103}
2104
2105#ifdef FW_VMACCESS
2106/*
2107 * Software implementation for physical memory block access.
2108 * XXX:Too slow, usef for debug purpose only.
2109 */
2110static void
2111fw_vmaccess(struct fw_xfer *xfer){
2112 struct fw_pkt *rfp, *sfp = NULL;
2113 uint32_t *ld = (uint32_t *)xfer->recv.buf;
2114
2115 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
2116 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2117 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2118 if(xfer->resp != 0){
2119 fw_xfer_free( xfer);
2120 return;
2121 }
2122 if(xfer->recv.buf == NULL){
2123 fw_xfer_free( xfer);
2124 return;
2125 }
2126 rfp = (struct fw_pkt *)xfer->recv.buf;
2127 switch(rfp->mode.hdr.tcode){
2128 /* XXX need fix for 64bit arch */
2129 case FWTCODE_WREQB:
2130 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2131 xfer->send.len = 12;
2132 sfp = (struct fw_pkt *)xfer->send.buf;
2133 bcopy(rfp->mode.wreqb.payload,
2134 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2135 sfp->mode.wres.tcode = FWTCODE_WRES;
2136 sfp->mode.wres.rtcode = 0;
2137 break;
2138 case FWTCODE_WREQQ:
2139 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2140 xfer->send.len = 12;
2141 sfp->mode.wres.tcode = FWTCODE_WRES;
2142 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2143 sfp->mode.wres.rtcode = 0;
2144 break;
2145 case FWTCODE_RREQB:
2146 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2147 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2148 sfp = (struct fw_pkt *)xfer->send.buf;
2149 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2150 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len));
2151 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2152 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2153 sfp->mode.rresb.rtcode = 0;
2154 sfp->mode.rresb.extcode = 0;
2155 break;
2156 case FWTCODE_RREQQ:
2157 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2158 xfer->send.len = 16;
2159 sfp = (struct fw_pkt *)xfer->send.buf;
2160 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2161 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2162 sfp->mode.rresb.rtcode = 0;
2163 break;
2164 default:
2165 fw_xfer_free( xfer);
2166 return;
2167 }
2168 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2169 xfer->dst = ntohs(rfp->mode.hdr.src);
2170 xfer->act.hand = fw_xfer_free;
2171 xfer->retry_req = fw_asybusy;
2172
2173 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2174 sfp->mode.hdr.pri = 0;
2175
2176 fw_asyreq(xfer->fc, -1, xfer);
2177/**/
2178 return;
2179}
2180#endif
2181
2182/*
2183 * CRC16 check-sum for IEEE1394 register blocks.
2184 */
2185uint16_t
2186fw_crc16(uint32_t *ptr, uint32_t len){
2187 uint32_t i, sum, crc = 0;
2188 int shift;
2189 len = (len + 3) & ~3;
2190 for(i = 0 ; i < len ; i+= 4){
2191 for( shift = 28 ; shift >= 0 ; shift -= 4){
2192 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2193 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2194 }
2195 crc &= 0xffff;
2196 }
2197 return((uint16_t) crc);
2198}
2199
2200static int
2201fw_bmr(struct firewire_comm *fc)
2202{
2203 struct fw_device fwdev;
2204 union fw_self_id *self_id;
2205 int cmstr;
2206 uint32_t quad;
2207
2208 /* Check to see if the current root node is cycle master capable */
2209 self_id = fw_find_self_id(fc, fc->max_node);
2210 if (fc->max_node > 0) {
2211 /* XXX check cmc bit of businfo block rather than contender */
2212 if (self_id->p0.link_active && self_id->p0.contender)
2213 cmstr = fc->max_node;
2214 else {
2215 device_printf(fc->bdev,
2216 "root node is not cycle master capable\n");
2217 /* XXX shall we be the cycle master? */
2218 cmstr = fc->nodeid;
2219 /* XXX need bus reset */
2220 }
2221 } else
2222 cmstr = -1;
2223
2224 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID));
2225 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
2226 /* We are not the bus manager */
2227 printf("\n");
2228 return(0);
2229 }
2230 printf("(me)\n");
2231
2232 /* Optimize gapcount */
2233 if(fc->max_hop <= MAX_GAPHOP )
2234 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
2235 /* If we are the cycle master, nothing to do */
2236 if (cmstr == fc->nodeid || cmstr == -1)
2237 return 0;
2238 /* Bus probe has not finished, make dummy fwdev for cmstr */
2239 bzero(&fwdev, sizeof(fwdev));
2240 fwdev.fc = fc;
2241 fwdev.dst = cmstr;
2242 fwdev.speed = 0;
2243 fwdev.maxrec = 8; /* 512 */
2244 fwdev.status = FWDEVINIT;
2245 /* Set cmstr bit on the cycle master */
2246 quad = htonl(1 << 8);
2247 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2248 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free);
2249
2250 return 0;
2251}
2252
2253static int
2254fw_modevent(module_t mode, int type, void *data)
2255{
2256 int err = 0;
2257#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2258 static eventhandler_tag fwdev_ehtag = NULL;
2259#endif
2260
2261 switch (type) {
2262 case MOD_LOAD:
2263#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2264 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone,
2265 fwdev_clone, 0, 1000);
2266#endif
2267 break;
2268 case MOD_UNLOAD:
2269#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2270 if (fwdev_ehtag != NULL)
2271 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag);
2272#endif
2273 break;
2274 case MOD_SHUTDOWN:
2275 break;
| 35 *
36 */
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/types.h>
41
42#include <sys/kernel.h>
43#include <sys/module.h>
44#include <sys/malloc.h>
45#include <sys/conf.h>
46#include <sys/sysctl.h>
47
48#if defined(__DragonFly__) || __FreeBSD_version < 500000
49#include <machine/clock.h> /* for DELAY() */
50#endif
51
52#include <sys/bus.h> /* used by smbus and newbus */
53#include <machine/bus.h>
54
55#ifdef __DragonFly__
56#include "firewire.h"
57#include "firewirereg.h"
58#include "fwmem.h"
59#include "iec13213.h"
60#include "iec68113.h"
61#else
62#include <dev/firewire/firewire.h>
63#include <dev/firewire/firewirereg.h>
64#include <dev/firewire/fwmem.h>
65#include <dev/firewire/iec13213.h>
66#include <dev/firewire/iec68113.h>
67#endif
68
69struct crom_src_buf {
70 struct crom_src src;
71 struct crom_chunk root;
72 struct crom_chunk vendor;
73 struct crom_chunk hw;
74};
75
76int firewire_debug=0, try_bmr=1, hold_count=3;
77SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
78 "FireWire driver debug flag");
79SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
80SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
81 "Try to be a bus manager");
82SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0,
83 "Number of count of bus resets for removing lost device information");
84
85MALLOC_DEFINE(M_FW, "firewire", "FireWire");
86MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
87
88#define FW_MAXASYRTY 4
89
90devclass_t firewire_devclass;
91
92static void firewire_identify (driver_t *, device_t);
93static int firewire_probe (device_t);
94static int firewire_attach (device_t);
95static int firewire_detach (device_t);
96static int firewire_resume (device_t);
97#if 0
98static int firewire_shutdown (device_t);
99#endif
100static device_t firewire_add_child (device_t, int, const char *, int);
101static void fw_try_bmr (void *);
102static void fw_try_bmr_callback (struct fw_xfer *);
103static void fw_asystart (struct fw_xfer *);
104static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *);
105static void fw_bus_probe (struct firewire_comm *);
106static void fw_bus_explore (struct firewire_comm *);
107static void fw_bus_explore_callback (struct fw_xfer *);
108static void fw_attach_dev (struct firewire_comm *);
109#ifdef FW_VMACCESS
110static void fw_vmaccess (struct fw_xfer *);
111#endif
112struct fw_xfer *asyreqq (struct firewire_comm *, uint8_t, uint8_t, uint8_t,
113 uint32_t, uint32_t, void (*)(struct fw_xfer *));
114static int fw_bmr (struct firewire_comm *);
115
116static device_method_t firewire_methods[] = {
117 /* Device interface */
118 DEVMETHOD(device_identify, firewire_identify),
119 DEVMETHOD(device_probe, firewire_probe),
120 DEVMETHOD(device_attach, firewire_attach),
121 DEVMETHOD(device_detach, firewire_detach),
122 DEVMETHOD(device_suspend, bus_generic_suspend),
123 DEVMETHOD(device_resume, firewire_resume),
124 DEVMETHOD(device_shutdown, bus_generic_shutdown),
125
126 /* Bus interface */
127 DEVMETHOD(bus_add_child, firewire_add_child),
128 DEVMETHOD(bus_print_child, bus_generic_print_child),
129
130 { 0, 0 }
131};
132char *linkspeed[] = {
133 "S100", "S200", "S400", "S800",
134 "S1600", "S3200", "undef", "undef"
135};
136
137static char *tcode_str[] = {
138 "WREQQ", "WREQB", "WRES", "undef",
139 "RREQQ", "RREQB", "RRESQ", "RRESB",
140 "CYCS", "LREQ", "STREAM", "LRES",
141 "undef", "undef", "PHY", "undef"
142};
143
144/* IEEE-1394a Table C-2 Gap count as a function of hops*/
145#define MAX_GAPHOP 15
146u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
147 21, 24, 26, 29, 32, 35, 37, 40};
148
149static driver_t firewire_driver = {
150 "firewire",
151 firewire_methods,
152 sizeof(struct firewire_softc),
153};
154
155/*
156 * Lookup fwdev by node id.
157 */
158struct fw_device *
159fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
160{
161 struct fw_device *fwdev;
162 int s;
163
164 s = splfw();
165 STAILQ_FOREACH(fwdev, &fc->devices, link)
166 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL)
167 break;
168 splx(s);
169
170 return fwdev;
171}
172
173/*
174 * Lookup fwdev by EUI64.
175 */
176struct fw_device *
177fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
178{
179 struct fw_device *fwdev;
180 int s;
181
182 s = splfw();
183 STAILQ_FOREACH(fwdev, &fc->devices, link)
184 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
185 break;
186 splx(s);
187
188 if(fwdev == NULL) return NULL;
189 if(fwdev->status == FWDEVINVAL) return NULL;
190 return fwdev;
191}
192
193/*
194 * Async. request procedure for userland application.
195 */
196int
197fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
198{
199 int err = 0;
200 struct fw_xferq *xferq;
201 int tl = 0, len;
202 struct fw_pkt *fp;
203 int tcode;
204 struct tcode_info *info;
205
206 if(xfer == NULL) return EINVAL;
207 if(xfer->act.hand == NULL){
208 printf("act.hand == NULL\n");
209 return EINVAL;
210 }
211 fp = &xfer->send.hdr;
212
213 tcode = fp->mode.common.tcode & 0xf;
214 info = &fc->tcode[tcode];
215 if (info->flag == 0) {
216 printf("invalid tcode=%x\n", tcode);
217 return EINVAL;
218 }
219 if (info->flag & FWTI_REQ)
220 xferq = fc->atq;
221 else
222 xferq = fc->ats;
223 len = info->hdr_len;
224 if (xfer->send.pay_len > MAXREC(fc->maxrec)) {
225 printf("send.pay_len > maxrec\n");
226 return EINVAL;
227 }
228 if (info->flag & FWTI_BLOCK_STR)
229 len = fp->mode.stream.len;
230 else if (info->flag & FWTI_BLOCK_ASY)
231 len = fp->mode.rresb.len;
232 else
233 len = 0;
234 if (len != xfer->send.pay_len){
235 printf("len(%d) != send.pay_len(%d) %s(%x)\n",
236 len, xfer->send.pay_len, tcode_str[tcode], tcode);
237 return EINVAL;
238 }
239
240 if(xferq->start == NULL){
241 printf("xferq->start == NULL\n");
242 return EINVAL;
243 }
244 if(!(xferq->queued < xferq->maxq)){
245 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
246 xferq->queued);
247 return EINVAL;
248 }
249
250 if (info->flag & FWTI_TLABEL) {
251 if ((tl = fw_get_tlabel(fc, xfer)) == -1)
252 return EAGAIN;
253 fp->mode.hdr.tlrt = tl << 2;
254 }
255
256 xfer->tl = tl;
257 xfer->resp = 0;
258 xfer->fc = fc;
259 xfer->q = xferq;
260 xfer->retry_req = fw_asybusy;
261
262 fw_asystart(xfer);
263 return err;
264}
265/*
266 * Wakeup blocked process.
267 */
268void
269fw_asy_callback(struct fw_xfer *xfer){
270 wakeup(xfer);
271 return;
272}
273/*
274 * Postpone to later retry.
275 */
276void fw_asybusy(struct fw_xfer *xfer){
277 printf("fw_asybusy\n");
278/*
279 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
280*/
281#if 0
282 DELAY(20000);
283#endif
284 fw_asystart(xfer);
285 return;
286}
287
288/*
289 * Async. request with given xfer structure.
290 */
291static void
292fw_asystart(struct fw_xfer *xfer)
293{
294 struct firewire_comm *fc = xfer->fc;
295 int s;
296 if(xfer->retry++ >= fc->max_asyretry){
297 device_printf(fc->bdev, "max_asyretry exceeded\n");
298 xfer->resp = EBUSY;
299 xfer->state = FWXF_BUSY;
300 xfer->act.hand(xfer);
301 return;
302 }
303#if 0 /* XXX allow bus explore packets only after bus rest */
304 if (fc->status < FWBUSEXPLORE) {
305 xfer->resp = EAGAIN;
306 xfer->state = FWXF_BUSY;
307 if (xfer->act.hand != NULL)
308 xfer->act.hand(xfer);
309 return;
310 }
311#endif
312 microtime(&xfer->tv);
313 s = splfw();
314 xfer->state = FWXF_INQ;
315 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
316 xfer->q->queued ++;
317 splx(s);
318 /* XXX just queue for mbuf */
319 if (xfer->mbuf == NULL)
320 xfer->q->start(fc);
321 return;
322}
323
324static void
325firewire_identify(driver_t *driver, device_t parent)
326{
327 BUS_ADD_CHILD(parent, 0, "firewire", -1);
328}
329
330static int
331firewire_probe(device_t dev)
332{
333 device_set_desc(dev, "IEEE1394(FireWire) bus");
334 return (0);
335}
336
337static void
338firewire_xfer_timeout(struct firewire_comm *fc)
339{
340 struct fw_xfer *xfer;
341 struct tlabel *tl;
342 struct timeval tv;
343 struct timeval split_timeout;
344 int i, s;
345
346 split_timeout.tv_sec = 0;
347 split_timeout.tv_usec = 200 * 1000; /* 200 msec */
348
349 microtime(&tv);
350 timevalsub(&tv, &split_timeout);
351
352 s = splfw();
353 for (i = 0; i < 0x40; i ++) {
354 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
355 xfer = tl->xfer;
356 if (timevalcmp(&xfer->tv, &tv, >))
357 /* the rests are newer than this */
358 break;
359 if (xfer->state == FWXF_START)
360 /* not sent yet */
361 break;
362 device_printf(fc->bdev,
363 "split transaction timeout dst=0x%x tl=0x%x state=%d\n",
364 xfer->send.hdr.mode.hdr.dst, i, xfer->state);
365 xfer->resp = ETIMEDOUT;
366 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
367 fw_xfer_done(xfer);
368 }
369 }
370 splx(s);
371}
372
373#define WATCHDOC_HZ 10
374static void
375firewire_watchdog(void *arg)
376{
377 struct firewire_comm *fc;
378 static int watchdoc_clock = 0;
379
380 fc = (struct firewire_comm *)arg;
381
382 /*
383 * At boot stage, the device interrupt is disabled and
384 * We encounter a timeout easily. To avoid this,
385 * ignore clock interrupt for a while.
386 */
387 if (watchdoc_clock > WATCHDOC_HZ * 15) {
388 firewire_xfer_timeout(fc);
389 fc->timeout(fc);
390 } else
391 watchdoc_clock ++;
392
393 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ,
394 (void *)firewire_watchdog, (void *)fc);
395}
396
397/*
398 * The attach routine.
399 */
400static int
401firewire_attach(device_t dev)
402{
403 int unit;
404 struct firewire_softc *sc = device_get_softc(dev);
405 device_t pa = device_get_parent(dev);
406 struct firewire_comm *fc;
407
408 fc = (struct firewire_comm *)device_get_softc(pa);
409 sc->fc = fc;
410 fc->status = FWBUSNOTREADY;
411
412 unit = device_get_unit(dev);
413 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
414
415 fwdev_makedev(sc);
416
417 CALLOUT_INIT(&sc->fc->timeout_callout);
418 CALLOUT_INIT(&sc->fc->bmr_callout);
419 CALLOUT_INIT(&sc->fc->retry_probe_callout);
420 CALLOUT_INIT(&sc->fc->busprobe_callout);
421
422 callout_reset(&sc->fc->timeout_callout, hz,
423 (void *)firewire_watchdog, (void *)sc->fc);
424
425 /* Locate our children */
426 bus_generic_probe(dev);
427
428 /* launch attachement of the added children */
429 bus_generic_attach(dev);
430
431 /* bus_reset */
432 fw_busreset(fc);
433 fc->ibr(fc);
434
435 return 0;
436}
437
438/*
439 * Attach it as child.
440 */
441static device_t
442firewire_add_child(device_t dev, int order, const char *name, int unit)
443{
444 device_t child;
445 struct firewire_softc *sc;
446
447 sc = (struct firewire_softc *)device_get_softc(dev);
448 child = device_add_child(dev, name, unit);
449 if (child) {
450 device_set_ivars(child, sc->fc);
451 device_probe_and_attach(child);
452 }
453
454 return child;
455}
456
457static int
458firewire_resume(device_t dev)
459{
460 struct firewire_softc *sc;
461
462 sc = (struct firewire_softc *)device_get_softc(dev);
463 sc->fc->status = FWBUSNOTREADY;
464
465 bus_generic_resume(dev);
466
467 return(0);
468}
469
470/*
471 * Dettach it.
472 */
473static int
474firewire_detach(device_t dev)
475{
476 struct firewire_softc *sc;
477 struct csrdir *csrd, *next;
478 struct fw_device *fwdev, *fwdev_next;
479 int err;
480
481 sc = (struct firewire_softc *)device_get_softc(dev);
482 if ((err = fwdev_destroydev(sc)) != 0)
483 return err;
484
485 if ((err = bus_generic_detach(dev)) != 0)
486 return err;
487
488 callout_stop(&sc->fc->timeout_callout);
489 callout_stop(&sc->fc->bmr_callout);
490 callout_stop(&sc->fc->retry_probe_callout);
491 callout_stop(&sc->fc->busprobe_callout);
492
493 /* XXX xfree_free and untimeout on all xfers */
494 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL;
495 fwdev = fwdev_next) {
496 fwdev_next = STAILQ_NEXT(fwdev, link);
497 free(fwdev, M_FW);
498 }
499 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) {
500 next = SLIST_NEXT(csrd, link);
501 free(csrd, M_FW);
502 }
503 free(sc->fc->topology_map, M_FW);
504 free(sc->fc->speed_map, M_FW);
505 free(sc->fc->crom_src_buf, M_FW);
506 return(0);
507}
508#if 0
509static int
510firewire_shutdown( device_t dev )
511{
512 return 0;
513}
514#endif
515
516
517static void
518fw_xferq_drain(struct fw_xferq *xferq)
519{
520 struct fw_xfer *xfer;
521
522 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
523 STAILQ_REMOVE_HEAD(&xferq->q, link);
524 xferq->queued --;
525 xfer->resp = EAGAIN;
526 fw_xfer_done(xfer);
527 }
528}
529
530void
531fw_drain_txq(struct firewire_comm *fc)
532{
533 int i;
534
535 fw_xferq_drain(fc->atq);
536 fw_xferq_drain(fc->ats);
537 for(i = 0; i < fc->nisodma; i++)
538 fw_xferq_drain(fc->it[i]);
539}
540
541static void
542fw_reset_csr(struct firewire_comm *fc)
543{
544 int i;
545
546 CSRARC(fc, STATE_CLEAR)
547 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
548 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
549 CSRARC(fc, NODE_IDS) = 0x3f;
550
551 CSRARC(fc, TOPO_MAP + 8) = 0;
552 fc->irm = -1;
553
554 fc->max_node = -1;
555
556 for(i = 2; i < 0x100/4 - 2 ; i++){
557 CSRARC(fc, SPED_MAP + i * 4) = 0;
558 }
559 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
560 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
561 CSRARC(fc, RESET_START) = 0;
562 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
563 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
564 CSRARC(fc, CYCLE_TIME) = 0x0;
565 CSRARC(fc, BUS_TIME) = 0x0;
566 CSRARC(fc, BUS_MGR_ID) = 0x3f;
567 CSRARC(fc, BANDWIDTH_AV) = 4915;
568 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
569 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
570 CSRARC(fc, IP_CHANNELS) = (1 << 31);
571
572 CSRARC(fc, CONF_ROM) = 0x04 << 24;
573 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
574 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
575 1 << 28 | 0xff << 16 | 0x09 << 8;
576 CSRARC(fc, CONF_ROM + 0xc) = 0;
577
578/* DV depend CSRs see blue book */
579 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
580 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
581
582 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
583 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
584}
585
586static void
587fw_init_crom(struct firewire_comm *fc)
588{
589 struct crom_src *src;
590
591 fc->crom_src_buf = (struct crom_src_buf *)
592 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO);
593 if (fc->crom_src_buf == NULL)
594 return;
595
596 src = &fc->crom_src_buf->src;
597 bzero(src, sizeof(struct crom_src));
598
599 /* BUS info sample */
600 src->hdr.info_len = 4;
601
602 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
603
604 src->businfo.irmc = 1;
605 src->businfo.cmc = 1;
606 src->businfo.isc = 1;
607 src->businfo.bmc = 1;
608 src->businfo.pmc = 0;
609 src->businfo.cyc_clk_acc = 100;
610 src->businfo.max_rec = fc->maxrec;
611 src->businfo.max_rom = MAXROM_4;
612 src->businfo.generation = 1;
613 src->businfo.link_spd = fc->speed;
614
615 src->businfo.eui64.hi = fc->eui.hi;
616 src->businfo.eui64.lo = fc->eui.lo;
617
618 STAILQ_INIT(&src->chunk_list);
619
620 fc->crom_src = src;
621 fc->crom_root = &fc->crom_src_buf->root;
622}
623
624static void
625fw_reset_crom(struct firewire_comm *fc)
626{
627 struct crom_src_buf *buf;
628 struct crom_src *src;
629 struct crom_chunk *root;
630
631 if (fc->crom_src_buf == NULL)
632 fw_init_crom(fc);
633
634 buf = fc->crom_src_buf;
635 src = fc->crom_src;
636 root = fc->crom_root;
637
638 STAILQ_INIT(&src->chunk_list);
639
640 bzero(root, sizeof(struct crom_chunk));
641 crom_add_chunk(src, NULL, root, 0);
642 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
643 /* private company_id */
644 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
645#ifdef __DragonFly__
646 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project");
647 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version);
648#else
649 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project");
650 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version);
651#endif
652 crom_add_simple_text(src, root, &buf->hw, hostname);
653}
654
655/*
656 * Called after bus reset.
657 */
658void
659fw_busreset(struct firewire_comm *fc)
660{
661 struct firewire_dev_comm *fdc;
662 struct crom_src *src;
663 device_t *devlistp;
664 void *newrom;
665 int i, devcnt;
666
667 switch(fc->status){
668 case FWBUSMGRELECT:
669 callout_stop(&fc->bmr_callout);
670 break;
671 default:
672 break;
673 }
674 fc->status = FWBUSRESET;
675 fw_reset_csr(fc);
676 fw_reset_crom(fc);
677
678 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) {
679 for( i = 0 ; i < devcnt ; i++)
680 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
681 fdc = device_get_softc(devlistp[i]);
682 if (fdc->post_busreset != NULL)
683 fdc->post_busreset(fdc);
684 }
685 free(devlistp, M_TEMP);
686 }
687
688 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO);
689 src = &fc->crom_src_buf->src;
690 crom_load(src, (uint32_t *)newrom, CROMSIZE);
691 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
692 /* bump generation and reload */
693 src->businfo.generation ++;
694 /* generation must be between 0x2 and 0xF */
695 if (src->businfo.generation < 2)
696 src->businfo.generation ++;
697 crom_load(src, (uint32_t *)newrom, CROMSIZE);
698 bcopy(newrom, (void *)fc->config_rom, CROMSIZE);
699 }
700 free(newrom, M_FW);
701}
702
703/* Call once after reboot */
704void fw_init(struct firewire_comm *fc)
705{
706 int i;
707 struct csrdir *csrd;
708#ifdef FW_VMACCESS
709 struct fw_xfer *xfer;
710 struct fw_bind *fwb;
711#endif
712
713 fc->max_asyretry = FW_MAXASYRTY;
714
715 fc->arq->queued = 0;
716 fc->ars->queued = 0;
717 fc->atq->queued = 0;
718 fc->ats->queued = 0;
719
720 fc->arq->buf = NULL;
721 fc->ars->buf = NULL;
722 fc->atq->buf = NULL;
723 fc->ats->buf = NULL;
724
725 fc->arq->flag = 0;
726 fc->ars->flag = 0;
727 fc->atq->flag = 0;
728 fc->ats->flag = 0;
729
730 STAILQ_INIT(&fc->atq->q);
731 STAILQ_INIT(&fc->ats->q);
732
733 for( i = 0 ; i < fc->nisodma ; i ++ ){
734 fc->it[i]->queued = 0;
735 fc->ir[i]->queued = 0;
736
737 fc->it[i]->start = NULL;
738 fc->ir[i]->start = NULL;
739
740 fc->it[i]->buf = NULL;
741 fc->ir[i]->buf = NULL;
742
743 fc->it[i]->flag = FWXFERQ_STREAM;
744 fc->ir[i]->flag = FWXFERQ_STREAM;
745
746 STAILQ_INIT(&fc->it[i]->q);
747 STAILQ_INIT(&fc->ir[i]->q);
748
749 STAILQ_INIT(&fc->it[i]->binds);
750 STAILQ_INIT(&fc->ir[i]->binds);
751 }
752
753 fc->arq->maxq = FWMAXQUEUE;
754 fc->ars->maxq = FWMAXQUEUE;
755 fc->atq->maxq = FWMAXQUEUE;
756 fc->ats->maxq = FWMAXQUEUE;
757
758 for( i = 0 ; i < fc->nisodma ; i++){
759 fc->ir[i]->maxq = FWMAXQUEUE;
760 fc->it[i]->maxq = FWMAXQUEUE;
761 }
762/* Initialize csr registers */
763 fc->topology_map = (struct fw_topology_map *)malloc(
764 sizeof(struct fw_topology_map),
765 M_FW, M_NOWAIT | M_ZERO);
766 fc->speed_map = (struct fw_speed_map *)malloc(
767 sizeof(struct fw_speed_map),
768 M_FW, M_NOWAIT | M_ZERO);
769 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
770 CSRARC(fc, TOPO_MAP + 4) = 1;
771 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
772 CSRARC(fc, SPED_MAP + 4) = 1;
773
774 STAILQ_INIT(&fc->devices);
775
776/* Initialize csr ROM work space */
777 SLIST_INIT(&fc->ongocsr);
778 SLIST_INIT(&fc->csrfree);
779 for( i = 0 ; i < FWMAXCSRDIR ; i++){
780 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT);
781 if(csrd == NULL) break;
782 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
783 }
784
785/* Initialize Async handlers */
786 STAILQ_INIT(&fc->binds);
787 for( i = 0 ; i < 0x40 ; i++){
788 STAILQ_INIT(&fc->tlabels[i]);
789 }
790
791/* DV depend CSRs see blue book */
792#if 0
793 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
794 CSRARC(fc, oPCR) = 0x8000007a;
795 for(i = 4 ; i < 0x7c/4 ; i+=4){
796 CSRARC(fc, i + oPCR) = 0x8000007a;
797 }
798
799 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
800 CSRARC(fc, iPCR) = 0x803f0000;
801 for(i = 4 ; i < 0x7c/4 ; i+=4){
802 CSRARC(fc, i + iPCR) = 0x0;
803 }
804#endif
805
806 fc->crom_src_buf = NULL;
807
808#ifdef FW_VMACCESS
809 xfer = fw_xfer_alloc();
810 if(xfer == NULL) return;
811
812 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
813 if(fwb == NULL){
814 fw_xfer_free(xfer);
815 }
816 xfer->act.hand = fw_vmaccess;
817 xfer->fc = fc;
818 xfer->sc = NULL;
819
820 fwb->start_hi = 0x2;
821 fwb->start_lo = 0;
822 fwb->addrlen = 0xffffffff;
823 fwb->xfer = xfer;
824 fw_bindadd(fc, fwb);
825#endif
826}
827
828#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\
829 ((fwb)->end < (addr))?1:0)
830
831/*
832 * To lookup bound process from IEEE1394 address.
833 */
834struct fw_bind *
835fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo)
836{
837 u_int64_t addr;
838 struct fw_bind *tfw;
839
840 addr = ((u_int64_t)dest_hi << 32) | dest_lo;
841 STAILQ_FOREACH(tfw, &fc->binds, fclist)
842 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0)
843 return(tfw);
844 return(NULL);
845}
846
847/*
848 * To bind IEEE1394 address block to process.
849 */
850int
851fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
852{
853 struct fw_bind *tfw, *prev = NULL;
854
855 if (fwb->start > fwb->end) {
856 printf("%s: invalid range\n", __func__);
857 return EINVAL;
858 }
859
860 STAILQ_FOREACH(tfw, &fc->binds, fclist) {
861 if (fwb->end < tfw->start)
862 break;
863 prev = tfw;
864 }
865 if (prev == NULL) {
866 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
867 goto out;
868 }
869 if (prev->end < fwb->start) {
870 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist);
871 goto out;
872 }
873
874 printf("%s: bind failed\n", __func__);
875 return (EBUSY);
876
877out:
878 if (fwb->act_type == FWACT_CH)
879 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist);
880 return (0);
881}
882
883/*
884 * To free IEEE1394 address block.
885 */
886int
887fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
888{
889#if 0
890 struct fw_xfer *xfer, *next;
891#endif
892 struct fw_bind *tfw;
893 int s;
894
895 s = splfw();
896 STAILQ_FOREACH(tfw, &fc->binds, fclist)
897 if (tfw == fwb) {
898 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
899 goto found;
900 }
901
902 printf("%s: no such binding\n", __func__);
903 splx(s);
904 return (1);
905found:
906#if 0
907 /* shall we do this? */
908 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
909 next = STAILQ_NEXT(xfer, link);
910 fw_xfer_free(xfer);
911 }
912 STAILQ_INIT(&fwb->xferlist);
913#endif
914
915 splx(s);
916 return 0;
917}
918
919/*
920 * To free transaction label.
921 */
922static void
923fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
924{
925 struct tlabel *tl;
926 int s = splfw();
927
928 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
929 tl = STAILQ_NEXT(tl, link)){
930 if(tl->xfer == xfer){
931 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
932 free(tl, M_FW);
933 splx(s);
934 return;
935 }
936 }
937 splx(s);
938 return;
939}
940
941/*
942 * To obtain XFER structure by transaction label.
943 */
944static struct fw_xfer *
945fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
946{
947 struct fw_xfer *xfer;
948 struct tlabel *tl;
949 int s = splfw();
950
951 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
952 tl = STAILQ_NEXT(tl, link)){
953 if(tl->xfer->send.hdr.mode.hdr.dst == node){
954 xfer = tl->xfer;
955 splx(s);
956 if (firewire_debug > 2)
957 printf("fw_tl2xfer: found tl=%d\n", tlabel);
958 return(xfer);
959 }
960 }
961 if (firewire_debug > 1)
962 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
963 splx(s);
964 return(NULL);
965}
966
967/*
968 * To allocate IEEE1394 XFER structure.
969 */
970struct fw_xfer *
971fw_xfer_alloc(struct malloc_type *type)
972{
973 struct fw_xfer *xfer;
974
975 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
976 if (xfer == NULL)
977 return xfer;
978
979 xfer->malloc = type;
980
981 return xfer;
982}
983
984struct fw_xfer *
985fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
986{
987 struct fw_xfer *xfer;
988
989 xfer = fw_xfer_alloc(type);
990 if (xfer == NULL)
991 return(NULL);
992 xfer->send.pay_len = send_len;
993 xfer->recv.pay_len = recv_len;
994 if (send_len > 0) {
995 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO);
996 if (xfer->send.payload == NULL) {
997 fw_xfer_free(xfer);
998 return(NULL);
999 }
1000 }
1001 if (recv_len > 0) {
1002 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT);
1003 if (xfer->recv.payload == NULL) {
1004 if (xfer->send.payload != NULL)
1005 free(xfer->send.payload, type);
1006 fw_xfer_free(xfer);
1007 return(NULL);
1008 }
1009 }
1010 return(xfer);
1011}
1012
1013/*
1014 * IEEE1394 XFER post process.
1015 */
1016void
1017fw_xfer_done(struct fw_xfer *xfer)
1018{
1019 if (xfer->act.hand == NULL) {
1020 printf("act.hand == NULL\n");
1021 return;
1022 }
1023
1024 if (xfer->fc == NULL)
1025 panic("fw_xfer_done: why xfer->fc is NULL?");
1026
1027 xfer->act.hand(xfer);
1028}
1029
1030void
1031fw_xfer_unload(struct fw_xfer* xfer)
1032{
1033 int s;
1034
1035 if(xfer == NULL ) return;
1036 if(xfer->state == FWXF_INQ){
1037 printf("fw_xfer_free FWXF_INQ\n");
1038 s = splfw();
1039 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
1040 xfer->q->queued --;
1041 splx(s);
1042 }
1043 if (xfer->fc != NULL) {
1044#if 1
1045 if(xfer->state == FWXF_START)
1046 /*
1047 * This could happen if:
1048 * 1. We call fwohci_arcv() before fwohci_txd().
1049 * 2. firewire_watch() is called.
1050 */
1051 printf("fw_xfer_free FWXF_START\n");
1052#endif
1053 fw_tl_free(xfer->fc, xfer);
1054 }
1055 xfer->state = FWXF_INIT;
1056 xfer->resp = 0;
1057 xfer->retry = 0;
1058}
1059/*
1060 * To free IEEE1394 XFER structure.
1061 */
1062void
1063fw_xfer_free_buf( struct fw_xfer* xfer)
1064{
1065 if (xfer == NULL) {
1066 printf("%s: xfer == NULL\n", __func__);
1067 return;
1068 }
1069 fw_xfer_unload(xfer);
1070 if(xfer->send.payload != NULL){
1071 free(xfer->send.payload, xfer->malloc);
1072 }
1073 if(xfer->recv.payload != NULL){
1074 free(xfer->recv.payload, xfer->malloc);
1075 }
1076 free(xfer, xfer->malloc);
1077}
1078
1079void
1080fw_xfer_free( struct fw_xfer* xfer)
1081{
1082 if (xfer == NULL) {
1083 printf("%s: xfer == NULL\n", __func__);
1084 return;
1085 }
1086 fw_xfer_unload(xfer);
1087 free(xfer, xfer->malloc);
1088}
1089
1090void
1091fw_asy_callback_free(struct fw_xfer *xfer)
1092{
1093#if 0
1094 printf("asyreq done state=%d resp=%d\n",
1095 xfer->state, xfer->resp);
1096#endif
1097 fw_xfer_free(xfer);
1098}
1099
1100/*
1101 * To configure PHY.
1102 */
1103static void
1104fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
1105{
1106 struct fw_xfer *xfer;
1107 struct fw_pkt *fp;
1108
1109 fc->status = FWBUSPHYCONF;
1110
1111 xfer = fw_xfer_alloc(M_FWXFER);
1112 if (xfer == NULL)
1113 return;
1114 xfer->fc = fc;
1115 xfer->retry_req = fw_asybusy;
1116 xfer->act.hand = fw_asy_callback_free;
1117
1118 fp = &xfer->send.hdr;
1119 fp->mode.ld[1] = 0;
1120 if (root_node >= 0)
1121 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23;
1122 if (gap_count >= 0)
1123 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16;
1124 fp->mode.ld[2] = ~fp->mode.ld[1];
1125/* XXX Dangerous, how to pass PHY packet to device driver */
1126 fp->mode.common.tcode |= FWTCODE_PHY;
1127
1128 if (firewire_debug)
1129 printf("send phy_config root_node=%d gap_count=%d\n",
1130 root_node, gap_count);
1131 fw_asyreq(fc, -1, xfer);
1132}
1133
1134#if 0
1135/*
1136 * Dump self ID.
1137 */
1138static void
1139fw_print_sid(uint32_t sid)
1140{
1141 union fw_self_id *s;
1142 s = (union fw_self_id *) &sid;
1143 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1144 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1145 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1146 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1147 s->p0.power_class, s->p0.port0, s->p0.port1,
1148 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1149}
1150#endif
1151
1152/*
1153 * To receive self ID.
1154 */
1155void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len)
1156{
1157 uint32_t *p;
1158 union fw_self_id *self_id;
1159 u_int i, j, node, c_port = 0, i_branch = 0;
1160
1161 fc->sid_cnt = len /(sizeof(uint32_t) * 2);
1162 fc->status = FWBUSINIT;
1163 fc->max_node = fc->nodeid & 0x3f;
1164 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16;
1165 fc->status = FWBUSCYMELECT;
1166 fc->topology_map->crc_len = 2;
1167 fc->topology_map->generation ++;
1168 fc->topology_map->self_id_count = 0;
1169 fc->topology_map->node_count = 0;
1170 fc->speed_map->generation ++;
1171 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1172 self_id = &fc->topology_map->self_id[0];
1173 for(i = 0; i < fc->sid_cnt; i ++){
1174 if (sid[1] != ~sid[0]) {
1175 printf("fw_sidrcv: invalid self-id packet\n");
1176 sid += 2;
1177 continue;
1178 }
1179 *self_id = *((union fw_self_id *)sid);
1180 fc->topology_map->crc_len++;
1181 if(self_id->p0.sequel == 0){
1182 fc->topology_map->node_count ++;
1183 c_port = 0;
1184#if 0
1185 fw_print_sid(sid[0]);
1186#endif
1187 node = self_id->p0.phy_id;
1188 if(fc->max_node < node){
1189 fc->max_node = self_id->p0.phy_id;
1190 }
1191 /* XXX I'm not sure this is the right speed_map */
1192 fc->speed_map->speed[node][node]
1193 = self_id->p0.phy_speed;
1194 for (j = 0; j < node; j ++) {
1195 fc->speed_map->speed[j][node]
1196 = fc->speed_map->speed[node][j]
1197 = min(fc->speed_map->speed[j][j],
1198 self_id->p0.phy_speed);
1199 }
1200 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1201 (self_id->p0.link_active && self_id->p0.contender)) {
1202 fc->irm = self_id->p0.phy_id;
1203 }
1204 if(self_id->p0.port0 >= 0x2){
1205 c_port++;
1206 }
1207 if(self_id->p0.port1 >= 0x2){
1208 c_port++;
1209 }
1210 if(self_id->p0.port2 >= 0x2){
1211 c_port++;
1212 }
1213 }
1214 if(c_port > 2){
1215 i_branch += (c_port - 2);
1216 }
1217 sid += 2;
1218 self_id++;
1219 fc->topology_map->self_id_count ++;
1220 }
1221 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1222 /* CRC */
1223 fc->topology_map->crc = fw_crc16(
1224 (uint32_t *)&fc->topology_map->generation,
1225 fc->topology_map->crc_len * 4);
1226 fc->speed_map->crc = fw_crc16(
1227 (uint32_t *)&fc->speed_map->generation,
1228 fc->speed_map->crc_len * 4);
1229 /* byteswap and copy to CSR */
1230 p = (uint32_t *)fc->topology_map;
1231 for (i = 0; i <= fc->topology_map->crc_len; i++)
1232 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1233 p = (uint32_t *)fc->speed_map;
1234 CSRARC(fc, SPED_MAP) = htonl(*p++);
1235 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1236 /* don't byte-swap uint8_t array */
1237 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1238
1239 fc->max_hop = fc->max_node - i_branch;
1240 printf(", maxhop <= %d", fc->max_hop);
1241
1242 if(fc->irm == -1 ){
1243 printf(", Not found IRM capable node");
1244 }else{
1245 printf(", cable IRM = %d", fc->irm);
1246 if (fc->irm == fc->nodeid)
1247 printf(" (me)");
1248 }
1249 printf("\n");
1250
1251 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1252 if (fc->irm == fc->nodeid) {
1253 fc->status = FWBUSMGRDONE;
1254 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1255 fw_bmr(fc);
1256 } else {
1257 fc->status = FWBUSMGRELECT;
1258 callout_reset(&fc->bmr_callout, hz/8,
1259 (void *)fw_try_bmr, (void *)fc);
1260 }
1261 } else
1262 fc->status = FWBUSMGRDONE;
1263
1264 callout_reset(&fc->busprobe_callout, hz/4,
1265 (void *)fw_bus_probe, (void *)fc);
1266}
1267
1268/*
1269 * To probe devices on the IEEE1394 bus.
1270 */
1271static void
1272fw_bus_probe(struct firewire_comm *fc)
1273{
1274 int s;
1275 struct fw_device *fwdev;
1276
1277 s = splfw();
1278 fc->status = FWBUSEXPLORE;
1279 fc->retry_count = 0;
1280
1281 /* Invalidate all devices, just after bus reset. */
1282 STAILQ_FOREACH(fwdev, &fc->devices, link)
1283 if (fwdev->status != FWDEVINVAL) {
1284 fwdev->status = FWDEVINVAL;
1285 fwdev->rcnt = 0;
1286 }
1287
1288 fc->ongonode = 0;
1289 fc->ongoaddr = CSRROMOFF;
1290 fc->ongodev = NULL;
1291 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1292 fw_bus_explore(fc);
1293 splx(s);
1294}
1295
1296/*
1297 * Find the self_id packet for a node, ignoring sequels.
1298 */
1299static union fw_self_id *
1300fw_find_self_id(struct firewire_comm *fc, int node)
1301{
1302 uint32_t i;
1303 union fw_self_id *s;
1304
1305 for (i = 0; i < fc->topology_map->self_id_count; i++) {
1306 s = &fc->topology_map->self_id[i];
1307 if (s->p0.sequel)
1308 continue;
1309 if (s->p0.phy_id == node)
1310 return s;
1311 }
1312 return 0;
1313}
1314
1315/*
1316 * To collect device informations on the IEEE1394 bus.
1317 */
1318static void
1319fw_bus_explore(struct firewire_comm *fc )
1320{
1321 int err = 0;
1322 struct fw_device *fwdev, *pfwdev, *tfwdev;
1323 uint32_t addr;
1324 struct fw_xfer *xfer;
1325 struct fw_pkt *fp;
1326
1327 if(fc->status != FWBUSEXPLORE)
1328 return;
1329
1330loop:
1331 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1332
1333 if(fc->ongonode > fc->max_node) goto done;
1334 if(fc->ongonode >= 0x3f) goto done;
1335
1336 /* check link */
1337 /* XXX we need to check phy_id first */
1338 if (!fw_find_self_id(fc, fc->ongonode)->p0.link_active) {
1339 if (firewire_debug)
1340 printf("node%d: link down\n", fc->ongonode);
1341 fc->ongonode++;
1342 goto loop;
1343 }
1344
1345 if(fc->ongoaddr <= CSRROMOFF &&
1346 fc->ongoeui.hi == 0xffffffff &&
1347 fc->ongoeui.lo == 0xffffffff ){
1348 fc->ongoaddr = CSRROMOFF;
1349 addr = 0xf0000000 | fc->ongoaddr;
1350 }else if(fc->ongoeui.hi == 0xffffffff ){
1351 fc->ongoaddr = CSRROMOFF + 0xc;
1352 addr = 0xf0000000 | fc->ongoaddr;
1353 }else if(fc->ongoeui.lo == 0xffffffff ){
1354 fc->ongoaddr = CSRROMOFF + 0x10;
1355 addr = 0xf0000000 | fc->ongoaddr;
1356 }else if(fc->ongodev == NULL){
1357 STAILQ_FOREACH(fwdev, &fc->devices, link)
1358 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1359 break;
1360 if(fwdev != NULL){
1361 fwdev->dst = fc->ongonode;
1362 fwdev->status = FWDEVINIT;
1363 fc->ongodev = fwdev;
1364 fc->ongoaddr = CSRROMOFF;
1365 addr = 0xf0000000 | fc->ongoaddr;
1366 goto dorequest;
1367 }
1368 fwdev = malloc(sizeof(struct fw_device), M_FW,
1369 M_NOWAIT | M_ZERO);
1370 if(fwdev == NULL)
1371 return;
1372 fwdev->fc = fc;
1373 fwdev->rommax = 0;
1374 fwdev->dst = fc->ongonode;
1375 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1376 fwdev->status = FWDEVINIT;
1377 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1378
1379 pfwdev = NULL;
1380 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1381 if (tfwdev->eui.hi > fwdev->eui.hi ||
1382 (tfwdev->eui.hi == fwdev->eui.hi &&
1383 tfwdev->eui.lo > fwdev->eui.lo))
1384 break;
1385 pfwdev = tfwdev;
1386 }
1387 if (pfwdev == NULL)
1388 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1389 else
1390 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1391
1392 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1393 linkspeed[fwdev->speed],
1394 fc->ongoeui.hi, fc->ongoeui.lo);
1395
1396 fc->ongodev = fwdev;
1397 fc->ongoaddr = CSRROMOFF;
1398 addr = 0xf0000000 | fc->ongoaddr;
1399 }else{
1400 addr = 0xf0000000 | fc->ongoaddr;
1401 }
1402dorequest:
1403#if 0
1404 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1405 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1406 fw_bus_explore_callback);
1407 if(xfer == NULL) goto done;
1408#else
1409 xfer = fw_xfer_alloc(M_FWXFER);
1410 if(xfer == NULL){
1411 goto done;
1412 }
1413 xfer->send.spd = 0;
1414 fp = &xfer->send.hdr;
1415 fp->mode.rreqq.dest_hi = 0xffff;
1416 fp->mode.rreqq.tlrt = 0;
1417 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1418 fp->mode.rreqq.pri = 0;
1419 fp->mode.rreqq.src = 0;
1420 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode;
1421 fp->mode.rreqq.dest_lo = addr;
1422 xfer->act.hand = fw_bus_explore_callback;
1423
1424 if (firewire_debug)
1425 printf("node%d: explore addr=0x%x\n",
1426 fc->ongonode, fc->ongoaddr);
1427 err = fw_asyreq(fc, -1, xfer);
1428 if(err){
1429 fw_xfer_free( xfer);
1430 return;
1431 }
1432#endif
1433 return;
1434done:
1435 /* fw_attach_devs */
1436 fc->status = FWBUSEXPDONE;
1437 if (firewire_debug)
1438 printf("bus_explore done\n");
1439 fw_attach_dev(fc);
1440 return;
1441
1442}
1443
1444/* Portable Async. request read quad */
1445struct fw_xfer *
1446asyreqq(struct firewire_comm *fc, uint8_t spd, uint8_t tl, uint8_t rt,
1447 uint32_t addr_hi, uint32_t addr_lo,
1448 void (*hand) (struct fw_xfer*))
1449{
1450 struct fw_xfer *xfer;
1451 struct fw_pkt *fp;
1452 int err;
1453
1454 xfer = fw_xfer_alloc(M_FWXFER);
1455 if (xfer == NULL)
1456 return NULL;
1457
1458 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */
1459 fp = &xfer->send.hdr;
1460 fp->mode.rreqq.dest_hi = addr_hi & 0xffff;
1461 if(tl & FWP_TL_VALID){
1462 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1463 }else{
1464 fp->mode.rreqq.tlrt = 0;
1465 }
1466 fp->mode.rreqq.tlrt |= rt & 0x3;
1467 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1468 fp->mode.rreqq.pri = 0;
1469 fp->mode.rreqq.src = 0;
1470 fp->mode.rreqq.dst = addr_hi >> 16;
1471 fp->mode.rreqq.dest_lo = addr_lo;
1472 xfer->act.hand = hand;
1473
1474 err = fw_asyreq(fc, -1, xfer);
1475 if(err){
1476 fw_xfer_free( xfer);
1477 return NULL;
1478 }
1479 return xfer;
1480}
1481
1482/*
1483 * Callback for the IEEE1394 bus information collection.
1484 */
1485static void
1486fw_bus_explore_callback(struct fw_xfer *xfer)
1487{
1488 struct firewire_comm *fc;
1489 struct fw_pkt *sfp,*rfp;
1490 struct csrhdr *chdr;
1491 struct csrdir *csrd;
1492 struct csrreg *csrreg;
1493 uint32_t offset;
1494
1495
1496 if(xfer == NULL) {
1497 printf("xfer == NULL\n");
1498 return;
1499 }
1500 fc = xfer->fc;
1501
1502 if (firewire_debug)
1503 printf("node%d: callback addr=0x%x\n",
1504 fc->ongonode, fc->ongoaddr);
1505
1506 if(xfer->resp != 0){
1507 device_printf(fc->bdev,
1508 "bus_explore node=%d addr=0x%x resp=%d retry=%d\n",
1509 fc->ongonode, fc->ongoaddr, xfer->resp, xfer->retry);
1510 if (xfer->retry < fc->max_asyretry) {
1511 fw_asystart(xfer);
1512 return;
1513 }
1514 goto errnode;
1515 }
1516
1517 sfp = &xfer->send.hdr;
1518 rfp = &xfer->recv.hdr;
1519#if 0
1520 {
1521 uint32_t *qld;
1522 int i;
1523 qld = (uint32_t *)xfer->recv.buf;
1524 printf("len:%d\n", xfer->recv.len);
1525 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1526 printf("0x%08x ", rfp->mode.ld[i/4]);
1527 if((i % 16) == 15) printf("\n");
1528 }
1529 if((i % 16) != 15) printf("\n");
1530 }
1531#endif
1532 if(fc->ongodev == NULL){
1533 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){
1534 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1535 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1536/* If CSR is minimal confinguration, more investigation is not needed. */
1537 if(chdr->info_len == 1){
1538 if (firewire_debug)
1539 printf("node%d: minimal config\n",
1540 fc->ongonode);
1541 goto nextnode;
1542 }else{
1543 fc->ongoaddr = CSRROMOFF + 0xc;
1544 }
1545 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){
1546 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1547 fc->ongoaddr = CSRROMOFF + 0x10;
1548 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){
1549 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1550 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1551 if (firewire_debug)
1552 printf("node%d: eui64 is zero.\n",
1553 fc->ongonode);
1554 goto nextnode;
1555 }
1556 fc->ongoaddr = CSRROMOFF;
1557 }
1558 }else{
1559 if (fc->ongoaddr == CSRROMOFF &&
1560 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) {
1561 fc->ongodev->status = FWDEVATTACHED;
1562 goto nextnode;
1563 }
1564 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1565 if(fc->ongoaddr > fc->ongodev->rommax){
1566 fc->ongodev->rommax = fc->ongoaddr;
1567 }
1568 csrd = SLIST_FIRST(&fc->ongocsr);
1569 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1570 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1571 offset = CSRROMOFF;
1572 }else{
1573 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1574 offset = csrd->off;
1575 }
1576 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1577 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1578 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1579 csrd = SLIST_FIRST(&fc->csrfree);
1580 if(csrd == NULL){
1581 goto nextnode;
1582 }else{
1583 csrd->ongoaddr = fc->ongoaddr;
1584 fc->ongoaddr += csrreg->val * 4;
1585 csrd->off = fc->ongoaddr;
1586 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1587 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1588 goto nextaddr;
1589 }
1590 }
1591 }
1592 fc->ongoaddr += 4;
1593 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1594 (fc->ongodev->rommax < 0x414)){
1595 if(fc->ongodev->rommax <= 0x414){
1596 csrd = SLIST_FIRST(&fc->csrfree);
1597 if(csrd == NULL) goto nextnode;
1598 csrd->off = fc->ongoaddr;
1599 csrd->ongoaddr = fc->ongoaddr;
1600 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1601 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1602 }
1603 goto nextaddr;
1604 }
1605
1606 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1607 if(csrd == NULL){
1608 goto nextnode;
1609 };
1610 fc->ongoaddr = csrd->ongoaddr + 4;
1611 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1612 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1613 csrd = SLIST_FIRST(&fc->ongocsr);
1614 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1615 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1616 offset = CSRROMOFF;
1617 }else{
1618 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1619 offset = csrd->off;
1620 }
1621 }
1622 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1623 goto nextnode;
1624 }
1625 }
1626nextaddr:
1627 fw_xfer_free( xfer);
1628 fw_bus_explore(fc);
1629 return;
1630errnode:
1631 fc->retry_count++;
1632 if (fc->ongodev != NULL) {
1633 fc->ongodev->status = FWDEVINVAL;
1634 /* Invalidate ROM */
1635 fc->ongodev->csrrom[0] = 0;
1636 }
1637nextnode:
1638 fw_xfer_free( xfer);
1639 fc->ongonode++;
1640/* housekeeping work space */
1641 fc->ongoaddr = CSRROMOFF;
1642 fc->ongodev = NULL;
1643 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1644 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1645 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1646 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1647 }
1648 fw_bus_explore(fc);
1649 return;
1650}
1651
1652/*
1653 * To attach sub-devices layer onto IEEE1394 bus.
1654 */
1655static void
1656fw_attach_dev(struct firewire_comm *fc)
1657{
1658 struct fw_device *fwdev, *next;
1659 int i, err;
1660 device_t *devlistp;
1661 int devcnt;
1662 struct firewire_dev_comm *fdc;
1663
1664 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1665 next = STAILQ_NEXT(fwdev, link);
1666 if (fwdev->status == FWDEVINIT) {
1667 fwdev->status = FWDEVATTACHED;
1668 } else if (fwdev->status == FWDEVINVAL) {
1669 fwdev->rcnt ++;
1670 if (fwdev->rcnt > hold_count) {
1671 /*
1672 * Remove devices which have not been seen
1673 * for a while.
1674 */
1675 STAILQ_REMOVE(&fc->devices, fwdev, fw_device,
1676 link);
1677 free(fwdev, M_FW);
1678 }
1679 }
1680 }
1681
1682 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1683 if( err != 0 )
1684 return;
1685 for( i = 0 ; i < devcnt ; i++){
1686 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1687 fdc = device_get_softc(devlistp[i]);
1688 if (fdc->post_explore != NULL)
1689 fdc->post_explore(fdc);
1690 }
1691 }
1692 free(devlistp, M_TEMP);
1693
1694 if (fc->retry_count > 0) {
1695 device_printf(fc->bdev, "bus_explore failed for %d nodes\n",
1696 fc->retry_count);
1697#if 0
1698 callout_reset(&fc->retry_probe_callout, hz*2,
1699 (void *)fc->ibr, (void *)fc);
1700#endif
1701 }
1702 return;
1703}
1704
1705/*
1706 * To allocate unique transaction label.
1707 */
1708static int
1709fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1710{
1711 u_int i;
1712 struct tlabel *tl, *tmptl;
1713 int s;
1714 static uint32_t label = 0;
1715
1716 s = splfw();
1717 for( i = 0 ; i < 0x40 ; i ++){
1718 label = (label + 1) & 0x3f;
1719 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1720 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1721 if (tmptl->xfer->send.hdr.mode.hdr.dst ==
1722 xfer->send.hdr.mode.hdr.dst)
1723 break;
1724 }
1725 if(tmptl == NULL) {
1726 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT);
1727 if (tl == NULL) {
1728 splx(s);
1729 return (-1);
1730 }
1731 tl->xfer = xfer;
1732 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1733 splx(s);
1734 if (firewire_debug > 1)
1735 printf("fw_get_tlabel: dst=%d tl=%d\n",
1736 xfer->send.hdr.mode.hdr.dst, label);
1737 return(label);
1738 }
1739 }
1740 splx(s);
1741
1742 if (firewire_debug > 1)
1743 printf("fw_get_tlabel: no free tlabel\n");
1744 return(-1);
1745}
1746
1747static void
1748fw_rcv_copy(struct fw_rcv_buf *rb)
1749{
1750 struct fw_pkt *pkt;
1751 u_char *p;
1752 struct tcode_info *tinfo;
1753 u_int res, i, len, plen;
1754
1755 rb->xfer->recv.spd -= rb->spd;
1756
1757 pkt = (struct fw_pkt *)rb->vec->iov_base;
1758 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode];
1759
1760 /* Copy header */
1761 p = (u_char *)&rb->xfer->recv.hdr;
1762 bcopy(rb->vec->iov_base, p, tinfo->hdr_len);
1763 (u_char *)rb->vec->iov_base += tinfo->hdr_len;
1764 rb->vec->iov_len -= tinfo->hdr_len;
1765
1766 /* Copy payload */
1767 p = (u_char *)rb->xfer->recv.payload;
1768 res = rb->xfer->recv.pay_len;
1769
1770 /* special handling for RRESQ */
1771 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ &&
1772 p != NULL && res >= sizeof(uint32_t)) {
1773 *(uint32_t *)p = pkt->mode.rresq.data;
1774 rb->xfer->recv.pay_len = sizeof(uint32_t);
1775 return;
1776 }
1777
1778 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0)
1779 return;
1780
1781 plen = pkt->mode.rresb.len;
1782
1783 for (i = 0; i < rb->nvec; i++, rb->vec++) {
1784 len = MIN(rb->vec->iov_len, plen);
1785 if (res < len) {
1786 printf("rcv buffer(%d) is %d bytes short.\n",
1787 rb->xfer->recv.pay_len, len - res);
1788 len = res;
1789 }
1790 bcopy(rb->vec->iov_base, p, len);
1791 p += len;
1792 res -= len;
1793 plen -= len;
1794 if (res == 0 || plen == 0)
1795 break;
1796 }
1797 rb->xfer->recv.pay_len -= res;
1798
1799}
1800
1801/*
1802 * Generic packet receiving process.
1803 */
1804void
1805fw_rcv(struct fw_rcv_buf *rb)
1806{
1807 struct fw_pkt *fp, *resfp;
1808 struct fw_bind *bind;
1809 int tcode, s;
1810 int i, len, oldstate;
1811#if 0
1812 {
1813 uint32_t *qld;
1814 int i;
1815 qld = (uint32_t *)buf;
1816 printf("spd %d len:%d\n", spd, len);
1817 for( i = 0 ; i <= len && i < 32; i+= 4){
1818 printf("0x%08x ", ntohl(qld[i/4]));
1819 if((i % 16) == 15) printf("\n");
1820 }
1821 if((i % 16) != 15) printf("\n");
1822 }
1823#endif
1824 fp = (struct fw_pkt *)rb->vec[0].iov_base;
1825 tcode = fp->mode.common.tcode;
1826 switch (tcode) {
1827 case FWTCODE_WRES:
1828 case FWTCODE_RRESQ:
1829 case FWTCODE_RRESB:
1830 case FWTCODE_LRES:
1831 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1832 fp->mode.hdr.tlrt >> 2);
1833 if(rb->xfer == NULL) {
1834 printf("fw_rcv: unknown response "
1835 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n",
1836 tcode_str[tcode], tcode,
1837 fp->mode.hdr.src,
1838 fp->mode.hdr.tlrt >> 2,
1839 fp->mode.hdr.tlrt & 3,
1840 fp->mode.rresq.data);
1841#if 1
1842 printf("try ad-hoc work around!!\n");
1843 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1844 (fp->mode.hdr.tlrt >> 2)^3);
1845 if (rb->xfer == NULL) {
1846 printf("no use...\n");
1847 goto err;
1848 }
1849#else
1850 goto err;
1851#endif
1852 }
1853 fw_rcv_copy(rb);
1854 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP)
1855 rb->xfer->resp = EIO;
1856 else
1857 rb->xfer->resp = 0;
1858 /* make sure the packet is drained in AT queue */
1859 oldstate = rb->xfer->state;
1860 rb->xfer->state = FWXF_RCVD;
1861 switch (oldstate) {
1862 case FWXF_SENT:
1863 fw_xfer_done(rb->xfer);
1864 break;
1865 case FWXF_START:
1866#if 0
1867 if (firewire_debug)
1868 printf("not sent yet tl=%x\n", rb->xfer->tl);
1869#endif
1870 break;
1871 default:
1872 printf("unexpected state %d\n", rb->xfer->state);
1873 }
1874 return;
1875 case FWTCODE_WREQQ:
1876 case FWTCODE_WREQB:
1877 case FWTCODE_RREQQ:
1878 case FWTCODE_RREQB:
1879 case FWTCODE_LREQ:
1880 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi,
1881 fp->mode.rreqq.dest_lo);
1882 if(bind == NULL){
1883 printf("Unknown service addr 0x%04x:0x%08x %s(%x)"
1884#if defined(__DragonFly__) || __FreeBSD_version < 500000
1885 " src=0x%x data=%lx\n",
1886#else
1887 " src=0x%x data=%x\n",
1888#endif
1889 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo,
1890 tcode_str[tcode], tcode,
1891 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data));
1892 if (rb->fc->status == FWBUSRESET) {
1893 printf("fw_rcv: cannot respond(bus reset)!\n");
1894 goto err;
1895 }
1896 rb->xfer = fw_xfer_alloc(M_FWXFER);
1897 if(rb->xfer == NULL){
1898 return;
1899 }
1900 rb->xfer->send.spd = rb->spd;
1901 rb->xfer->send.pay_len = 0;
1902 resfp = &rb->xfer->send.hdr;
1903 switch (tcode) {
1904 case FWTCODE_WREQQ:
1905 case FWTCODE_WREQB:
1906 resfp->mode.hdr.tcode = FWTCODE_WRES;
1907 break;
1908 case FWTCODE_RREQQ:
1909 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1910 break;
1911 case FWTCODE_RREQB:
1912 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1913 break;
1914 case FWTCODE_LREQ:
1915 resfp->mode.hdr.tcode = FWTCODE_LRES;
1916 break;
1917 }
1918 resfp->mode.hdr.dst = fp->mode.hdr.src;
1919 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1920 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1921 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR;
1922 resfp->mode.rresb.extcode = 0;
1923 resfp->mode.rresb.len = 0;
1924/*
1925 rb->xfer->act.hand = fw_asy_callback;
1926*/
1927 rb->xfer->act.hand = fw_xfer_free;
1928 if(fw_asyreq(rb->fc, -1, rb->xfer)){
1929 fw_xfer_free(rb->xfer);
1930 return;
1931 }
1932 goto err;
1933 }
1934 len = 0;
1935 for (i = 0; i < rb->nvec; i ++)
1936 len += rb->vec[i].iov_len;
1937 switch(bind->act_type){
1938 case FWACT_XFER:
1939 /* splfw()?? */
1940 rb->xfer = STAILQ_FIRST(&bind->xferlist);
1941 if (rb->xfer == NULL) {
1942 printf("Discard a packet for this bind.\n");
1943 goto err;
1944 }
1945 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1946 fw_rcv_copy(rb);
1947 rb->xfer->act.hand(rb->xfer);
1948 return;
1949 break;
1950 case FWACT_CH:
1951 if(rb->fc->ir[bind->sub]->queued >=
1952 rb->fc->ir[bind->sub]->maxq){
1953 device_printf(rb->fc->bdev,
1954 "Discard a packet %x %d\n",
1955 bind->sub,
1956 rb->fc->ir[bind->sub]->queued);
1957 goto err;
1958 }
1959 rb->xfer = STAILQ_FIRST(&bind->xferlist);
1960 if (rb->xfer == NULL) {
1961 printf("Discard packet for this bind\n");
1962 goto err;
1963 }
1964 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1965 fw_rcv_copy(rb);
1966 s = splfw();
1967 rb->fc->ir[bind->sub]->queued++;
1968 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q,
1969 rb->xfer, link);
1970 splx(s);
1971
1972 wakeup((caddr_t)rb->fc->ir[bind->sub]);
1973
1974 return;
1975 break;
1976 default:
1977 goto err;
1978 break;
1979 }
1980 break;
1981#if 0 /* shouldn't happen ?? or for GASP */
1982 case FWTCODE_STREAM:
1983 {
1984 struct fw_xferq *xferq;
1985
1986 xferq = rb->fc->ir[sub];
1987#if 0
1988 printf("stream rcv dma %d len %d off %d spd %d\n",
1989 sub, len, off, spd);
1990#endif
1991 if(xferq->queued >= xferq->maxq) {
1992 printf("receive queue is full\n");
1993 goto err;
1994 }
1995 /* XXX get xfer from xfer queue, we don't need copy for
1996 per packet mode */
1997 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
1998 vec[0].iov_len);
1999 if (rb->xfer == NULL) goto err;
2000 fw_rcv_copy(rb)
2001 s = splfw();
2002 xferq->queued++;
2003 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link);
2004 splx(s);
2005 sc = device_get_softc(rb->fc->bdev);
2006#if defined(__DragonFly__) || __FreeBSD_version < 500000
2007 if (&xferq->rsel.si_pid != 0)
2008#else
2009 if (SEL_WAITING(&xferq->rsel))
2010#endif
2011 selwakeuppri(&xferq->rsel, FWPRI);
2012 if (xferq->flag & FWXFERQ_WAKEUP) {
2013 xferq->flag &= ~FWXFERQ_WAKEUP;
2014 wakeup((caddr_t)xferq);
2015 }
2016 if (xferq->flag & FWXFERQ_HANDLER) {
2017 xferq->hand(xferq);
2018 }
2019 return;
2020 break;
2021 }
2022#endif
2023 default:
2024 printf("fw_rcv: unknow tcode %d\n", tcode);
2025 break;
2026 }
2027err:
2028 return;
2029}
2030
2031/*
2032 * Post process for Bus Manager election process.
2033 */
2034static void
2035fw_try_bmr_callback(struct fw_xfer *xfer)
2036{
2037 struct firewire_comm *fc;
2038 int bmr;
2039
2040 if (xfer == NULL)
2041 return;
2042 fc = xfer->fc;
2043 if (xfer->resp != 0)
2044 goto error;
2045 if (xfer->recv.payload == NULL)
2046 goto error;
2047 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE)
2048 goto error;
2049
2050 bmr = ntohl(xfer->recv.payload[0]);
2051 if (bmr == 0x3f)
2052 bmr = fc->nodeid;
2053
2054 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
2055 fw_xfer_free_buf(xfer);
2056 fw_bmr(fc);
2057 return;
2058
2059error:
2060 device_printf(fc->bdev, "bus manager election failed\n");
2061 fw_xfer_free_buf(xfer);
2062}
2063
2064
2065/*
2066 * To candidate Bus Manager election process.
2067 */
2068static void
2069fw_try_bmr(void *arg)
2070{
2071 struct fw_xfer *xfer;
2072 struct firewire_comm *fc = (struct firewire_comm *)arg;
2073 struct fw_pkt *fp;
2074 int err = 0;
2075
2076 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4);
2077 if(xfer == NULL){
2078 return;
2079 }
2080 xfer->send.spd = 0;
2081 fc->status = FWBUSMGRELECT;
2082
2083 fp = &xfer->send.hdr;
2084 fp->mode.lreq.dest_hi = 0xffff;
2085 fp->mode.lreq.tlrt = 0;
2086 fp->mode.lreq.tcode = FWTCODE_LREQ;
2087 fp->mode.lreq.pri = 0;
2088 fp->mode.lreq.src = 0;
2089 fp->mode.lreq.len = 8;
2090 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP;
2091 fp->mode.lreq.dst = FWLOCALBUS | fc->irm;
2092 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
2093 xfer->send.payload[0] = htonl(0x3f);
2094 xfer->send.payload[1] = htonl(fc->nodeid);
2095 xfer->act.hand = fw_try_bmr_callback;
2096
2097 err = fw_asyreq(fc, -1, xfer);
2098 if(err){
2099 fw_xfer_free_buf(xfer);
2100 return;
2101 }
2102 return;
2103}
2104
2105#ifdef FW_VMACCESS
2106/*
2107 * Software implementation for physical memory block access.
2108 * XXX:Too slow, usef for debug purpose only.
2109 */
2110static void
2111fw_vmaccess(struct fw_xfer *xfer){
2112 struct fw_pkt *rfp, *sfp = NULL;
2113 uint32_t *ld = (uint32_t *)xfer->recv.buf;
2114
2115 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
2116 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2117 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2118 if(xfer->resp != 0){
2119 fw_xfer_free( xfer);
2120 return;
2121 }
2122 if(xfer->recv.buf == NULL){
2123 fw_xfer_free( xfer);
2124 return;
2125 }
2126 rfp = (struct fw_pkt *)xfer->recv.buf;
2127 switch(rfp->mode.hdr.tcode){
2128 /* XXX need fix for 64bit arch */
2129 case FWTCODE_WREQB:
2130 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2131 xfer->send.len = 12;
2132 sfp = (struct fw_pkt *)xfer->send.buf;
2133 bcopy(rfp->mode.wreqb.payload,
2134 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2135 sfp->mode.wres.tcode = FWTCODE_WRES;
2136 sfp->mode.wres.rtcode = 0;
2137 break;
2138 case FWTCODE_WREQQ:
2139 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2140 xfer->send.len = 12;
2141 sfp->mode.wres.tcode = FWTCODE_WRES;
2142 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2143 sfp->mode.wres.rtcode = 0;
2144 break;
2145 case FWTCODE_RREQB:
2146 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2147 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2148 sfp = (struct fw_pkt *)xfer->send.buf;
2149 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2150 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len));
2151 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2152 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2153 sfp->mode.rresb.rtcode = 0;
2154 sfp->mode.rresb.extcode = 0;
2155 break;
2156 case FWTCODE_RREQQ:
2157 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2158 xfer->send.len = 16;
2159 sfp = (struct fw_pkt *)xfer->send.buf;
2160 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2161 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2162 sfp->mode.rresb.rtcode = 0;
2163 break;
2164 default:
2165 fw_xfer_free( xfer);
2166 return;
2167 }
2168 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2169 xfer->dst = ntohs(rfp->mode.hdr.src);
2170 xfer->act.hand = fw_xfer_free;
2171 xfer->retry_req = fw_asybusy;
2172
2173 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2174 sfp->mode.hdr.pri = 0;
2175
2176 fw_asyreq(xfer->fc, -1, xfer);
2177/**/
2178 return;
2179}
2180#endif
2181
2182/*
2183 * CRC16 check-sum for IEEE1394 register blocks.
2184 */
2185uint16_t
2186fw_crc16(uint32_t *ptr, uint32_t len){
2187 uint32_t i, sum, crc = 0;
2188 int shift;
2189 len = (len + 3) & ~3;
2190 for(i = 0 ; i < len ; i+= 4){
2191 for( shift = 28 ; shift >= 0 ; shift -= 4){
2192 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2193 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2194 }
2195 crc &= 0xffff;
2196 }
2197 return((uint16_t) crc);
2198}
2199
2200static int
2201fw_bmr(struct firewire_comm *fc)
2202{
2203 struct fw_device fwdev;
2204 union fw_self_id *self_id;
2205 int cmstr;
2206 uint32_t quad;
2207
2208 /* Check to see if the current root node is cycle master capable */
2209 self_id = fw_find_self_id(fc, fc->max_node);
2210 if (fc->max_node > 0) {
2211 /* XXX check cmc bit of businfo block rather than contender */
2212 if (self_id->p0.link_active && self_id->p0.contender)
2213 cmstr = fc->max_node;
2214 else {
2215 device_printf(fc->bdev,
2216 "root node is not cycle master capable\n");
2217 /* XXX shall we be the cycle master? */
2218 cmstr = fc->nodeid;
2219 /* XXX need bus reset */
2220 }
2221 } else
2222 cmstr = -1;
2223
2224 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID));
2225 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
2226 /* We are not the bus manager */
2227 printf("\n");
2228 return(0);
2229 }
2230 printf("(me)\n");
2231
2232 /* Optimize gapcount */
2233 if(fc->max_hop <= MAX_GAPHOP )
2234 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
2235 /* If we are the cycle master, nothing to do */
2236 if (cmstr == fc->nodeid || cmstr == -1)
2237 return 0;
2238 /* Bus probe has not finished, make dummy fwdev for cmstr */
2239 bzero(&fwdev, sizeof(fwdev));
2240 fwdev.fc = fc;
2241 fwdev.dst = cmstr;
2242 fwdev.speed = 0;
2243 fwdev.maxrec = 8; /* 512 */
2244 fwdev.status = FWDEVINIT;
2245 /* Set cmstr bit on the cycle master */
2246 quad = htonl(1 << 8);
2247 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2248 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free);
2249
2250 return 0;
2251}
2252
2253static int
2254fw_modevent(module_t mode, int type, void *data)
2255{
2256 int err = 0;
2257#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2258 static eventhandler_tag fwdev_ehtag = NULL;
2259#endif
2260
2261 switch (type) {
2262 case MOD_LOAD:
2263#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2264 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone,
2265 fwdev_clone, 0, 1000);
2266#endif
2267 break;
2268 case MOD_UNLOAD:
2269#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2270 if (fwdev_ehtag != NULL)
2271 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag);
2272#endif
2273 break;
2274 case MOD_SHUTDOWN:
2275 break;
|