1/*
2 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the acknowledgement as bellow:
15 *
16 * This product includes software developed by K. Kobayashi and H. Shimokawa
17 *
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 * $FreeBSD: head/sys/dev/firewire/firewire.c 111040 2003-02-17 14:24:06Z simokawa $
34 *
35 */
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/types.h>
40#include <sys/mbuf.h>
41#include <sys/socket.h>
42#include <sys/socketvar.h>
43
44#include <sys/kernel.h>
45#include <sys/malloc.h>
46#include <sys/conf.h>
47#include <sys/uio.h>
48#include <sys/sysctl.h>
49
50#include <machine/cpufunc.h> /* for rdtsc proto for clock.h below */
51#include <machine/clock.h>
52
53#include <sys/bus.h> /* used by smbus and newbus */
54
55#include <dev/firewire/firewire.h>
56#include <dev/firewire/firewirereg.h>
57#include <dev/firewire/fwmem.h>
58#include <dev/firewire/iec13213.h>
59#include <dev/firewire/iec68113.h>
60
61int firewire_debug=0, try_bmr=1;
62SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
63 "FireWire driver debug flag");
64SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
65SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
66 "Try to be a bus manager");
67
68MALLOC_DEFINE(M_FW, "firewire", "FireWire");
69MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
70
71#define FW_MAXASYRTY 4
72#define FW_MAXDEVRCNT 4
73
74#define XFER_TIMEOUT 0
75
76devclass_t firewire_devclass;
77
78static int firewire_match __P((device_t));
79static int firewire_attach __P((device_t));
80static int firewire_detach __P((device_t));
81#if 0
82static int firewire_shutdown __P((device_t));
83#endif
84static device_t firewire_add_child __P((device_t, int, const char *, int));
85static void fw_try_bmr __P((void *));
86static void fw_try_bmr_callback __P((struct fw_xfer *));
87static void fw_asystart __P((struct fw_xfer *));
88static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *));
89static void fw_bus_probe __P((struct firewire_comm *));
90static void fw_bus_explore __P((struct firewire_comm *));
91static void fw_bus_explore_callback __P((struct fw_xfer *));
92static void fw_attach_dev __P((struct firewire_comm *));
93#ifdef FW_VMACCESS
94static void fw_vmaccess __P((struct fw_xfer *));
95#endif
96struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t,
97 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *))));
98static int fw_bmr __P((struct firewire_comm *));
99
100static device_method_t firewire_methods[] = {
101 /* Device interface */
102 DEVMETHOD(device_probe, firewire_match),
103 DEVMETHOD(device_attach, firewire_attach),
104 DEVMETHOD(device_detach, firewire_detach),
105 DEVMETHOD(device_suspend, bus_generic_suspend),
106 DEVMETHOD(device_resume, bus_generic_resume),
107 DEVMETHOD(device_shutdown, bus_generic_shutdown),
108
109 /* Bus interface */
110 DEVMETHOD(bus_add_child, firewire_add_child),
111 DEVMETHOD(bus_print_child, bus_generic_print_child),
112
113 { 0, 0 }
114};
115char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"};
116
117#define MAX_GAPHOP 16
118u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17,
119 20, 23, 25, 28, 31, 33, 36, 39, 42};
120
121extern struct cdevsw firewire_cdevsw;
122
123static driver_t firewire_driver = {
124 "firewire",
125 firewire_methods,
126 sizeof(struct firewire_softc),
127};
128
129/*
130 * Lookup fwdev by node id.
131 */
132struct fw_device *
133fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
134{
135 struct fw_device *fwdev;
136 int s;
137
138 s = splfw();
139 STAILQ_FOREACH(fwdev, &fc->devices, link)
140 if (fwdev->dst == dst)
141 break;
142 splx(s);
143
144 if(fwdev == NULL) return NULL;
145 if(fwdev->status == FWDEVINVAL) return NULL;
146 return fwdev;
147}
148
149/*
150 * Lookup fwdev by EUI64.
151 */
152struct fw_device *
153fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
154{
155 struct fw_device *fwdev;
156 int s;
157
158 s = splfw();
159 STAILQ_FOREACH(fwdev, &fc->devices, link)
160 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
161 break;
162 splx(s);
163
164 if(fwdev == NULL) return NULL;
165 if(fwdev->status == FWDEVINVAL) return NULL;
166 return fwdev;
167}
168
169/*
170 * Async. request procedure for userland application.
171 */
172int
173fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
174{
175 int err = 0;
176 struct fw_xferq *xferq;
177 int tl = 0, len;
178 struct fw_pkt *fp;
179 int tcode;
180 struct tcode_info *info;
181
182 if(xfer == NULL) return EINVAL;
183 if(xfer->send.len > MAXREC(fc->maxrec)){
184 printf("send.len > maxrec\n");
185 return EINVAL;
186 }
187 if(xfer->act.hand == NULL){
188 printf("act.hand == NULL\n");
189 return EINVAL;
190 }
191 fp = (struct fw_pkt *)xfer->send.buf;
192
193 tcode = fp->mode.common.tcode & 0xf;
194 info = &fc->tcode[tcode];
195 if (info->flag == 0) {
196 printf("invalid tcode=%d\n", tcode);
197 return EINVAL;
198 }
199 if (info->flag & FWTI_REQ)
200 xferq = fc->atq;
201 else
202 xferq = fc->ats;
203 len = info->hdr_len;
204 if (info->flag & FWTI_BLOCK_STR)
205 len += ntohs(fp->mode.stream.len);
206 else if (info->flag & FWTI_BLOCK_ASY)
207 len += ntohs(fp->mode.rresb.len);
208 if( len > xfer->send.len ){
209 printf("len(%d) > send.len(%d) (tcode=%d)\n",
210 len, xfer->send.len, tcode);
211 return EINVAL;
212 }
213 xfer->send.len = len;
214
215 if(xferq->start == NULL){
216 printf("xferq->start == NULL\n");
217 return EINVAL;
218 }
219 if(!(xferq->queued < xferq->maxq)){
220 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
221 xferq->queued);
222 return EINVAL;
223 }
224
225
226 if (info->flag & FWTI_TLABEL) {
227 if((tl = fw_get_tlabel(fc, xfer)) == -1 )
228 return EIO;
229 fp->mode.hdr.tlrt = tl << 2;
230 }
231
232 xfer->tl = tl;
233 xfer->tcode = tcode;
234 xfer->resp = 0;
235 xfer->fc = fc;
236 xfer->q = xferq;
237 xfer->act_type = FWACT_XFER;
238 xfer->retry_req = fw_asybusy;
239
240 fw_asystart(xfer);
241 return err;
242}
243/*
244 * Wakeup blocked process.
245 */
246void
247fw_asy_callback(struct fw_xfer *xfer){
248 wakeup(xfer);
249 return;
250}
251/*
252 * Postpone to later retry.
253 */
254void fw_asybusy(struct fw_xfer *xfer){
255#if 1
256 printf("fw_asybusy\n");
257#endif
258#if XFER_TIMEOUT
259 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch);
260#endif
261/*
262 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
263*/
264 DELAY(20000);
265 fw_asystart(xfer);
266 return;
267}
268#if XFER_TIMEOUT
269/*
270 * Post timeout for async. request.
271 */
272void
273fw_xfer_timeout(void *arg)
274{
275 int s;
276 struct fw_xfer *xfer;
277
278 xfer = (struct fw_xfer *)arg;
279 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp);
280 /* XXX set error code */
281 s = splfw();
282 xfer->act.hand(xfer);
283 splx(s);
284}
285#endif
286/*
287 * Async. request with given xfer structure.
288 */
289static void
290fw_asystart(struct fw_xfer *xfer)
291{
292 struct firewire_comm *fc = xfer->fc;
293 int s;
294 if(xfer->retry++ >= fc->max_asyretry){
295 xfer->resp = EBUSY;
296 xfer->state = FWXF_BUSY;
297 xfer->act.hand(xfer);
298 return;
299 }
300#if 0 /* XXX allow bus explore packets only after bus rest */
301 if (fc->status < FWBUSEXPLORE) {
302 xfer->resp = EAGAIN;
303 xfer->state = FWXF_BUSY;
304 if (xfer->act.hand != NULL)
305 xfer->act.hand(xfer);
306 return;
307 }
308#endif
309 s = splfw();
310 xfer->state = FWXF_INQ;
311 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
312 xfer->q->queued ++;
313 splx(s);
314 /* XXX just queue for mbuf */
315 if (xfer->mbuf == NULL)
316 xfer->q->start(fc);
317#if XFER_TIMEOUT
318 if (xfer->act.hand != NULL)
319 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz);
320#endif
321 return;
322}
323
324static int
325firewire_match( device_t dev )
326{
327 device_set_desc(dev, "IEEE1394(FireWire) bus");
328 return -140;
329}
330
331static void
332firewire_xfer_timeout(struct firewire_comm *fc)
333{
334 struct fw_xfer *xfer;
335 struct tlabel *tl;
336 struct timeval tv;
337 struct timeval split_timeout;
338 int i, s;
339
340 split_timeout.tv_sec = 6;
341 split_timeout.tv_usec = 0;
342
343 microtime(&tv);
344 timevalsub(&tv, &split_timeout);
345
346 s = splfw();
347 for (i = 0; i < 0x40; i ++) {
348 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
349 xfer = tl->xfer;
350 if (timevalcmp(&xfer->tv, &tv, >))
351 /* the rests are newer than this */
352 break;
353 device_printf(fc->bdev,
354 "split transaction timeout dst=0x%x tl=0x%x\n",
355 xfer->dst, i);
356 xfer->resp = ETIMEDOUT;
357 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
358 switch (xfer->act_type) {
359 case FWACT_XFER:
360 fw_xfer_done(xfer);
361 break;
362 default:
363 /* ??? */
364 fw_xfer_free(xfer);
365 break;
366 }
367 }
368 }
369 splx(s);
370}
371
372static void
373firewire_watchdog(void *arg)
374{
375 struct firewire_comm *fc;
376
377 fc = (struct firewire_comm *)arg;
378 firewire_xfer_timeout(fc);
379 fc->timeout(fc);
380 callout_reset(&fc->timeout_callout, hz,
381 (void *)firewire_watchdog, (void *)fc);
382}
383
384/*
385 * The attach routine.
386 */
387static int
388firewire_attach( device_t dev )
389{
390 int i, unitmask, mn;
391 struct firewire_softc *sc = device_get_softc(dev);
392 device_t pa = device_get_parent(dev);
393 struct firewire_comm *fc;
394 dev_t d;
395
396 fc = (struct firewire_comm *)device_get_softc(pa);
397 sc->fc = fc;
398
399 unitmask = UNIT2MIN(device_get_unit(dev));
400
401 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
402 for ( i = 0 ; i < fc->nisodma ; i++ ){
403 mn = unitmask | i;
404 /* XXX device name should be improved */
405 d = make_dev(&firewire_cdevsw, unit2minor(mn),
406 UID_ROOT, GID_OPERATOR, 0660,
407 "fw%x", mn);
408#if __FreeBSD_version >= 500000
409 if (i == 0)
410 sc->dev = d;
411 else
412 dev_depends(sc->dev, d);
413#else
414 sc->dev[i] = d;
415#endif
416 }
417 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG),
418 UID_ROOT, GID_OPERATOR, 0660,
419 "fwmem%d", device_get_unit(dev));
420#if __FreeBSD_version >= 500000
421 dev_depends(sc->dev, d);
422#else
423 sc->dev[i] = d;
424#endif
425#if __FreeBSD_version >= 500000
426#define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */)
427#else
428#define CALLOUT_INIT(x) callout_init(x)
429#endif
430 CALLOUT_INIT(&sc->fc->timeout_callout);
431 CALLOUT_INIT(&sc->fc->bmr_callout);
432 CALLOUT_INIT(&sc->fc->retry_probe_callout);
433 CALLOUT_INIT(&sc->fc->busprobe_callout);
434
435 callout_reset(&sc->fc->timeout_callout, hz,
436 (void *)firewire_watchdog, (void *)sc->fc);
437
438 /* Locate our children */
439 bus_generic_probe(dev);
440
441 /* launch attachement of the added children */
442 bus_generic_attach(dev);
443
444#if 1
445 /* bus_reset */
446 fc->ibr(fc);
447#endif
448
449 return 0;
450}
451
452/*
453 * Attach it as child.
454 */
455static device_t
456firewire_add_child(device_t dev, int order, const char *name, int unit)
457{
458 device_t child;
459 struct firewire_softc *sc;
460
461 sc = (struct firewire_softc *)device_get_softc(dev);
462 child = device_add_child(dev, name, unit);
463 if (child) {
464 device_set_ivars(child, sc->fc);
465 device_probe_and_attach(child);
466 }
467
468 return child;
469}
470
471/*
472 * Dettach it.
473 */
474static int
475firewire_detach( device_t dev )
476{
477 struct firewire_softc *sc;
478
479 sc = (struct firewire_softc *)device_get_softc(dev);
480
481#if __FreeBSD_version >= 500000
482 destroy_dev(sc->dev);
483#else
484 {
485 int j;
486 for (j = 0 ; j < sc->fc->nisodma + 1; j++)
487 destroy_dev(sc->dev[j]);
488 }
489#endif
490 /* XXX xfree_free and untimeout on all xfers */
491 callout_stop(&sc->fc->timeout_callout);
492 callout_stop(&sc->fc->bmr_callout);
493 callout_stop(&sc->fc->retry_probe_callout);
494 callout_stop(&sc->fc->busprobe_callout);
495 free(sc->fc->topology_map, M_FW);
496 free(sc->fc->speed_map, M_FW);
497 bus_generic_detach(dev);
498 return(0);
499}
500#if 0
501static int
502firewire_shutdown( device_t dev )
503{
504 return 0;
505}
506#endif
507
508
509static void
510fw_xferq_drain(struct fw_xferq *xferq)
511{
512 struct fw_xfer *xfer;
513
514 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
515 STAILQ_REMOVE_HEAD(&xferq->q, link);
516 xfer->resp = EAGAIN;
517 switch (xfer->act_type) {
518 case FWACT_XFER:
519 fw_xfer_done(xfer);
520 break;
521 default:
522 /* ??? */
523 fw_xfer_free(xfer);
524 break;
525 }
526 }
527}
528
529void
530fw_drain_txq(struct firewire_comm *fc)
531{
532 int i;
533
534 fw_xferq_drain(fc->atq);
535 fw_xferq_drain(fc->ats);
536 for(i = 0; i < fc->nisodma; i++)
537 fw_xferq_drain(fc->it[i]);
538}
539
540/*
541 * Called after bus reset.
542 */
543void
544fw_busreset(struct firewire_comm *fc)
545{
546 int i;
547
548 switch(fc->status){
549 case FWBUSMGRELECT:
550 callout_stop(&fc->bmr_callout);
551 break;
552 default:
553 break;
554 }
555 fc->status = FWBUSRESET;
556 CSRARC(fc, STATE_CLEAR)
557 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
558 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
559 CSRARC(fc, NODE_IDS) = 0x3f;
560
561 CSRARC(fc, TOPO_MAP + 8) = 0;
562 fc->irm = -1;
563
564 fc->max_node = -1;
565
566 for(i = 2; i < 0x100/4 - 2 ; i++){
567 CSRARC(fc, SPED_MAP + i * 4) = 0;
568 }
569 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
570 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
571 CSRARC(fc, RESET_START) = 0;
572 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
573 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
574 CSRARC(fc, CYCLE_TIME) = 0x0;
575 CSRARC(fc, BUS_TIME) = 0x0;
576 CSRARC(fc, BUS_MGR_ID) = 0x3f;
577 CSRARC(fc, BANDWIDTH_AV) = 4915;
578 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
579 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
580 CSRARC(fc, IP_CHANNELS) = (1 << 31);
581
582 CSRARC(fc, CONF_ROM) = 0x04 << 24;
583 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
584 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
585 1 << 28 | 0xff << 16 | 0x09 << 8;
586 CSRARC(fc, CONF_ROM + 0xc) = 0;
587
588/* DV depend CSRs see blue book */
589 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
590 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
591
592 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
593 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
594}
595
596/* Call once after reboot */
597void fw_init(struct firewire_comm *fc)
598{
599 int i;
600 struct csrdir *csrd;
601#ifdef FW_VMACCESS
602 struct fw_xfer *xfer;
603 struct fw_bind *fwb;
604#endif
605
606 fc->max_asyretry = FW_MAXASYRTY;
607
608 fc->arq->queued = 0;
609 fc->ars->queued = 0;
610 fc->atq->queued = 0;
611 fc->ats->queued = 0;
612
613 fc->arq->psize = PAGE_SIZE;
614 fc->ars->psize = PAGE_SIZE;
615 fc->atq->psize = 0;
616 fc->ats->psize = 0;
617
618
619 fc->arq->buf = NULL;
620 fc->ars->buf = NULL;
621 fc->atq->buf = NULL;
622 fc->ats->buf = NULL;
623
624 fc->arq->flag = FWXFERQ_PACKET;
625 fc->ars->flag = FWXFERQ_PACKET;
626 fc->atq->flag = FWXFERQ_PACKET;
627 fc->ats->flag = FWXFERQ_PACKET;
628
629 STAILQ_INIT(&fc->atq->q);
630 STAILQ_INIT(&fc->ats->q);
631
632 for( i = 0 ; i < fc->nisodma ; i ++ ){
633 fc->it[i]->queued = 0;
634 fc->ir[i]->queued = 0;
635
636 fc->it[i]->start = NULL;
637 fc->ir[i]->start = NULL;
638
639 fc->it[i]->buf = NULL;
640 fc->ir[i]->buf = NULL;
641
642 fc->it[i]->flag = FWXFERQ_STREAM;
643 fc->ir[i]->flag = FWXFERQ_STREAM;
644
645 STAILQ_INIT(&fc->it[i]->q);
646 STAILQ_INIT(&fc->ir[i]->q);
647
648 STAILQ_INIT(&fc->it[i]->binds);
649 STAILQ_INIT(&fc->ir[i]->binds);
650 }
651
652 fc->arq->maxq = FWMAXQUEUE;
653 fc->ars->maxq = FWMAXQUEUE;
654 fc->atq->maxq = FWMAXQUEUE;
655 fc->ats->maxq = FWMAXQUEUE;
656
657 for( i = 0 ; i < fc->nisodma ; i++){
658 fc->ir[i]->maxq = FWMAXQUEUE;
659 fc->it[i]->maxq = FWMAXQUEUE;
660 }
661/* Initialize csr registers */
662 fc->topology_map = (struct fw_topology_map *)malloc(
663 sizeof(struct fw_topology_map),
664 M_FW, M_NOWAIT | M_ZERO);
665 fc->speed_map = (struct fw_speed_map *)malloc(
666 sizeof(struct fw_speed_map),
667 M_FW, M_NOWAIT | M_ZERO);
668 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
669 CSRARC(fc, TOPO_MAP + 4) = 1;
670 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
671 CSRARC(fc, SPED_MAP + 4) = 1;
672
673 STAILQ_INIT(&fc->devices);
674 STAILQ_INIT(&fc->pending);
675
676/* Initialize csr ROM work space */
677 SLIST_INIT(&fc->ongocsr);
678 SLIST_INIT(&fc->csrfree);
679 for( i = 0 ; i < FWMAXCSRDIR ; i++){
680 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT);
681 if(csrd == NULL) break;
682 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
683 }
684
685/* Initialize Async handlers */
686 STAILQ_INIT(&fc->binds);
687 for( i = 0 ; i < 0x40 ; i++){
688 STAILQ_INIT(&fc->tlabels[i]);
689 }
690
691/* DV depend CSRs see blue book */
692#if 0
693 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
694 CSRARC(fc, oPCR) = 0x8000007a;
695 for(i = 4 ; i < 0x7c/4 ; i+=4){
696 CSRARC(fc, i + oPCR) = 0x8000007a;
697 }
698
699 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
700 CSRARC(fc, iPCR) = 0x803f0000;
701 for(i = 4 ; i < 0x7c/4 ; i+=4){
702 CSRARC(fc, i + iPCR) = 0x0;
703 }
704#endif
705
706
707#ifdef FW_VMACCESS
708 xfer = fw_xfer_alloc();
709 if(xfer == NULL) return;
710
711 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
712 if(fwb == NULL){
713 fw_xfer_free(xfer);
714 }
715 xfer->act.hand = fw_vmaccess;
716 xfer->act_type = FWACT_XFER;
717 xfer->fc = fc;
718 xfer->sc = NULL;
719
720 fwb->start_hi = 0x2;
721 fwb->start_lo = 0;
722 fwb->addrlen = 0xffffffff;
723 fwb->xfer = xfer;
724 fw_bindadd(fc, fwb);
725#endif
726}
727
728/*
729 * To lookup binded process from IEEE1394 address.
730 */
731struct fw_bind *
732fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo)
733{
734 struct fw_bind *tfw;
735 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ;
736 tfw = STAILQ_NEXT(tfw, fclist)){
737 if(tfw->xfer->act_type != FWACT_NULL &&
738 tfw->start_hi == dest_hi &&
739 tfw->start_lo <= dest_lo &&
740 (tfw->start_lo + tfw->addrlen) > dest_lo){
741 return(tfw);
742 }
743 }
744 return(NULL);
745}
746
747/*
748 * To bind IEEE1394 address block to process.
749 */
750int
751fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
752{
753 struct fw_bind *tfw, *tfw2 = NULL;
754 int err = 0;
755 tfw = STAILQ_FIRST(&fc->binds);
756 if(tfw == NULL){
757 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
758 goto out;
759 }
760 if((tfw->start_hi > fwb->start_hi) ||
761 (tfw->start_hi == fwb->start_hi &&
762 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){
763 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
764 goto out;
765 }
766 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){
767 if((tfw->start_hi < fwb->start_hi) ||
768 (tfw->start_hi == fwb->start_hi &&
769 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){
770 tfw2 = STAILQ_NEXT(tfw, fclist);
771 if(tfw2 == NULL)
772 break;
773 if((tfw2->start_hi > fwb->start_hi) ||
774 (tfw2->start_hi == fwb->start_hi &&
775 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){
776 break;
777 }else{
778 err = EBUSY;
779 goto out;
780 }
781 }
782 }
783 if(tfw != NULL){
784 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist);
785 }else{
786 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist);
787 }
788out:
789 if(!err && fwb->xfer->act_type == FWACT_CH){
790 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist);
791 }
792 return err;
793}
794
795/*
796 * To free IEEE1394 address block.
797 */
798int
799fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
800{
801 int s;
802
803 s = splfw();
804 /* shall we check the existance? */
805 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
806 splx(s);
807 if (fwb->xfer)
808 fw_xfer_free(fwb->xfer);
809
810 return 0;
811}
812
813/*
814 * To free transaction label.
815 */
816static void
817fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
818{
819 struct tlabel *tl;
820 int s = splfw();
821
822 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
823 tl = STAILQ_NEXT(tl, link)){
824 if(tl->xfer == xfer){
825 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
826 free(tl, M_FW);
827 splx(s);
828 return;
829 }
830 }
831 splx(s);
832 return;
833}
834
835/*
836 * To obtain XFER structure by transaction label.
837 */
838static struct fw_xfer *
839fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
840{
841 struct fw_xfer *xfer;
842 struct tlabel *tl;
843 int s = splfw();
844
845 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
846 tl = STAILQ_NEXT(tl, link)){
847 if(tl->xfer->dst == node){
848 xfer = tl->xfer;
849 splx(s);
850 if (firewire_debug > 2)
851 printf("fw_tl2xfer: found tl=%d\n", tlabel);
852 return(xfer);
853 }
854 }
855 if (firewire_debug > 1)
856 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
857 splx(s);
858 return(NULL);
859}
860
861/*
862 * To allocate IEEE1394 XFER structure.
863 */
864struct fw_xfer *
865fw_xfer_alloc(struct malloc_type *type)
866{
867 struct fw_xfer *xfer;
868
869 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
870 if (xfer == NULL)
871 return xfer;
872
873 microtime(&xfer->tv);
874 xfer->sub = -1;
875 xfer->malloc = type;
876
877 return xfer;
878}
879
880/*
881 * IEEE1394 XFER post process.
882 */
883void
884fw_xfer_done(struct fw_xfer *xfer)
885{
886 if (xfer->act.hand == NULL)
887 return;
888
889#if XFER_TIMEOUT
890 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch);
891#endif
892
893 if (xfer->fc->status != FWBUSRESET)
894 xfer->act.hand(xfer);
895 else {
896 printf("fw_xfer_done: pending\n");
897 if (xfer->fc != NULL)
898 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link);
899 else
900 panic("fw_xfer_done: why xfer->fc is NULL?");
901 }
902}
903
904/*
905 * To free IEEE1394 XFER structure.
906 */
907void
908fw_xfer_free( struct fw_xfer* xfer)
909{
910 int s;
911 if(xfer == NULL ) return;
912 if(xfer->state == FWXF_INQ){
913 printf("fw_xfer_free FWXF_INQ\n");
914 s = splfw();
915 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
916 xfer->q->queued --;
917 splx(s);
918 }
919 if(xfer->fc != NULL){
920 if(xfer->state == FWXF_START){
921#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */
922 printf("fw_xfer_free FWXF_START\n");
923#endif
924 s = splfw();
925 xfer->q->drain(xfer->fc, xfer);
926 splx(s);
927 }
928 }
929 if(xfer->send.buf != NULL){
930 free(xfer->send.buf, M_FW);
931 }
932 if(xfer->recv.buf != NULL){
933 free(xfer->recv.buf, M_FW);
934 }
935 if(xfer->fc != NULL){
936 fw_tl_free(xfer->fc, xfer);
937 }
938 free(xfer, xfer->malloc);
939}
940
941static void
942fw_asy_callback_free(struct fw_xfer *xfer)
943{
944#if 0
945 printf("asyreq done state=%d resp=%d\n",
946 xfer->state, xfer->resp);
947#endif
948 fw_xfer_free(xfer);
949}
950
951/*
952 * To configure PHY.
953 */
954static void
955fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
956{
957 struct fw_xfer *xfer;
958 struct fw_pkt *fp;
959
960 fc->status = FWBUSPHYCONF;
961
962#if 0
963 DELAY(100000);
964#endif
965 xfer = fw_xfer_alloc(M_FWXFER);
966 xfer->send.len = 12;
967 xfer->send.off = 0;
968 xfer->fc = fc;
969 xfer->retry_req = fw_asybusy;
970 xfer->act.hand = fw_asy_callback_free;
971
972 xfer->send.buf = malloc(sizeof(u_int32_t),
973 M_FW, M_NOWAIT | M_ZERO);
974 fp = (struct fw_pkt *)xfer->send.buf;
975 fp->mode.ld[1] = 0;
976 if (root_node >= 0)
977 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23);
978 if (gap_count >= 0)
979 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16);
980 fp->mode.ld[2] = ~fp->mode.ld[1];
981/* XXX Dangerous, how to pass PHY packet to device driver */
982 fp->mode.common.tcode |= FWTCODE_PHY;
983
984 if (firewire_debug)
985 printf("send phy_config root_node=%d gap_count=%d\n",
986 root_node, gap_count);
987 fw_asyreq(fc, -1, xfer);
988}
989
990#if 0
991/*
992 * Dump self ID.
993 */
994static void
995fw_print_sid(u_int32_t sid)
996{
997 union fw_self_id *s;
998 s = (union fw_self_id *) &sid;
999 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1000 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1001 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1002 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1003 s->p0.power_class, s->p0.port0, s->p0.port1,
1004 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1005}
1006#endif
1007
1008/*
1009 * To receive self ID.
1010 */
1011void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off)
1012{
1013 u_int32_t *p, *sid = (u_int32_t *)(buf + off);
1014 union fw_self_id *self_id;
1015 u_int i, j, node, c_port = 0, i_branch = 0;
1016
1017 fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
1018 fc->status = FWBUSINIT;
1019 fc->max_node = fc->nodeid & 0x3f;
1020 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
1021 fc->status = FWBUSCYMELECT;
1022 fc->topology_map->crc_len = 2;
1023 fc->topology_map->generation ++;
1024 fc->topology_map->self_id_count = 0;
1025 fc->topology_map->node_count = 0;
1026 fc->speed_map->generation ++;
1027 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1028 self_id = &fc->topology_map->self_id[0];
1029 for(i = 0; i < fc->sid_cnt; i ++){
1030 if (sid[1] != ~sid[0]) {
1031 printf("fw_sidrcv: invalid self-id packet\n");
1032 sid += 2;
1033 continue;
1034 }
1035 *self_id = *((union fw_self_id *)sid);
1036 fc->topology_map->crc_len++;
1037 if(self_id->p0.sequel == 0){
1038 fc->topology_map->node_count ++;
1039 c_port = 0;
1040#if 0
1041 fw_print_sid(sid[0]);
1042#endif
1043 node = self_id->p0.phy_id;
1044 if(fc->max_node < node){
1045 fc->max_node = self_id->p0.phy_id;
1046 }
1047 /* XXX I'm not sure this is the right speed_map */
1048 fc->speed_map->speed[node][node]
1049 = self_id->p0.phy_speed;
1050 for (j = 0; j < node; j ++) {
1051 fc->speed_map->speed[j][node]
1052 = fc->speed_map->speed[node][j]
1053 = min(fc->speed_map->speed[j][j],
1054 self_id->p0.phy_speed);
1055 }
1056 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1057 (self_id->p0.link_active && self_id->p0.contender)) {
1058 fc->irm = self_id->p0.phy_id;
1059 }
1060 if(self_id->p0.port0 >= 0x2){
1061 c_port++;
1062 }
1063 if(self_id->p0.port1 >= 0x2){
1064 c_port++;
1065 }
1066 if(self_id->p0.port2 >= 0x2){
1067 c_port++;
1068 }
1069 }
1070 if(c_port > 2){
1071 i_branch += (c_port - 2);
1072 }
1073 sid += 2;
1074 self_id++;
1075 fc->topology_map->self_id_count ++;
1076 }
1077 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1078 /* CRC */
1079 fc->topology_map->crc = fw_crc16(
1080 (u_int32_t *)&fc->topology_map->generation,
1081 fc->topology_map->crc_len * 4);
1082 fc->speed_map->crc = fw_crc16(
1083 (u_int32_t *)&fc->speed_map->generation,
1084 fc->speed_map->crc_len * 4);
1085 /* byteswap and copy to CSR */
1086 p = (u_int32_t *)fc->topology_map;
1087 for (i = 0; i <= fc->topology_map->crc_len; i++)
1088 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1089 p = (u_int32_t *)fc->speed_map;
1090 CSRARC(fc, SPED_MAP) = htonl(*p++);
1091 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1092 /* don't byte-swap u_int8_t array */
1093 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1094
1095 fc->max_hop = fc->max_node - i_branch;
1096#if 1
1097 printf(", maxhop <= %d", fc->max_hop);
1098#endif
1099
1100 if(fc->irm == -1 ){
1101 printf(", Not found IRM capable node");
1102 }else{
1103 printf(", cable IRM = %d", fc->irm);
1104 if (fc->irm == fc->nodeid)
1105 printf(" (me)");
1106 }
1107 printf("\n");
1108
1109 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1110 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) {
1111 fc->status = FWBUSMGRDONE;
1112 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1113 } else {
1114 fc->status = FWBUSMGRELECT;
1115 callout_reset(&fc->bmr_callout, hz/8,
1116 (void *)fw_try_bmr, (void *)fc);
1117 }
1118 } else {
1119 fc->status = FWBUSMGRDONE;
1120#if 0
1121 device_printf(fc->bdev, "BMR = %x\n",
1122 CSRARC(fc, BUS_MGR_ID));
1123#endif
1124 }
1125 free(buf, M_FW);
1126 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){
1127 /* I am BMGR */
1128 fw_bmr(fc);
1129 }
1130 callout_reset(&fc->busprobe_callout, hz/4,
1131 (void *)fw_bus_probe, (void *)fc);
1132}
1133
1134/*
1135 * To probe devices on the IEEE1394 bus.
1136 */
1137static void
1138fw_bus_probe(struct firewire_comm *fc)
1139{
1140 int s;
1141 struct fw_device *fwdev, *next;
1142
1143 s = splfw();
1144 fc->status = FWBUSEXPLORE;
1145 fc->retry_count = 0;
1146
1147/*
1148 * Invalidate all devices, just after bus reset. Devices
1149 * to be removed has not been seen longer time.
1150 */
1151 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1152 next = STAILQ_NEXT(fwdev, link);
1153 if (fwdev->status != FWDEVINVAL) {
1154 fwdev->status = FWDEVINVAL;
1155 fwdev->rcnt = 0;
1156 } else if(fwdev->rcnt < FW_MAXDEVRCNT) {
1157 fwdev->rcnt ++;
1158 } else {
1159 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link);
1160 free(fwdev, M_FW);
1161 }
1162 }
1163 fc->ongonode = 0;
1164 fc->ongoaddr = CSRROMOFF;
1165 fc->ongodev = NULL;
1166 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1167 fw_bus_explore(fc);
1168 splx(s);
1169}
1170
1171/*
1172 * To collect device informations on the IEEE1394 bus.
1173 */
1174static void
1175fw_bus_explore(struct firewire_comm *fc )
1176{
1177 int err = 0;
1178 struct fw_device *fwdev, *pfwdev, *tfwdev;
1179 u_int32_t addr;
1180 struct fw_xfer *xfer;
1181 struct fw_pkt *fp;
1182
1183 if(fc->status != FWBUSEXPLORE)
1184 return;
1185
1186loop:
1187 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1188
1189 if(fc->ongonode > fc->max_node) goto done;
1190 if(fc->ongonode >= 0x3f) goto done;
1191
1192 /* check link */
1193 /* XXX we need to check phy_id first */
1194 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
1195 if (firewire_debug)
1196 printf("node%d: link down\n", fc->ongonode);
1197 fc->ongonode++;
1198 goto loop;
1199 }
1200
1201 if(fc->ongoaddr <= CSRROMOFF &&
1202 fc->ongoeui.hi == 0xffffffff &&
1203 fc->ongoeui.lo == 0xffffffff ){
1204 fc->ongoaddr = CSRROMOFF;
1205 addr = 0xf0000000 | fc->ongoaddr;
1206 }else if(fc->ongoeui.hi == 0xffffffff ){
1207 fc->ongoaddr = CSRROMOFF + 0xc;
1208 addr = 0xf0000000 | fc->ongoaddr;
1209 }else if(fc->ongoeui.lo == 0xffffffff ){
1210 fc->ongoaddr = CSRROMOFF + 0x10;
1211 addr = 0xf0000000 | fc->ongoaddr;
1212 }else if(fc->ongodev == NULL){
1213 STAILQ_FOREACH(fwdev, &fc->devices, link)
1214 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1215 break;
1216 if(fwdev != NULL){
1217 fwdev->dst = fc->ongonode;
1218 fwdev->status = FWDEVATTACHED;
1219 fc->ongonode++;
1220 fc->ongoaddr = CSRROMOFF;
1221 fc->ongodev = NULL;
1222 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1223 goto loop;
1224 }
1225 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT);
1226 if(fwdev == NULL)
1227 return;
1228 fwdev->fc = fc;
1229 fwdev->rommax = 0;
1230 fwdev->dst = fc->ongonode;
1231 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1232 fwdev->status = FWDEVINIT;
1233#if 0
1234 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4)
1235 >> ((3 - (fc->ongonode % 4)) * 8);
1236#else
1237 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1238#endif
1239
1240 pfwdev = NULL;
1241 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1242 if (tfwdev->eui.hi > fwdev->eui.hi ||
1243 (tfwdev->eui.hi == fwdev->eui.hi &&
1244 tfwdev->eui.lo > fwdev->eui.lo))
1245 break;
1246 pfwdev = tfwdev;
1247 }
1248 if (pfwdev == NULL)
1249 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1250 else
1251 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1252
1253 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1254 linkspeed[fwdev->speed],
1255 fc->ongoeui.hi, fc->ongoeui.lo);
1256
1257 fc->ongodev = fwdev;
1258 fc->ongoaddr = CSRROMOFF;
1259 addr = 0xf0000000 | fc->ongoaddr;
1260 }else{
1261 addr = 0xf0000000 | fc->ongoaddr;
1262 }
1263#if 0
1264 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1265 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1266 fw_bus_explore_callback);
1267 if(xfer == NULL) goto done;
1268#else
1269 xfer = fw_xfer_alloc(M_FWXFER);
1270 if(xfer == NULL){
1271 goto done;
1272 }
1273 xfer->send.len = 16;
1274 xfer->spd = 0;
1275 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1276 if(xfer->send.buf == NULL){
1277 fw_xfer_free( xfer);
1278 return;
1279 }
1280
1281 xfer->send.off = 0;
1282 fp = (struct fw_pkt *)xfer->send.buf;
1283 fp->mode.rreqq.dest_hi = htons(0xffff);
1284 fp->mode.rreqq.tlrt = 0;
1285 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1286 fp->mode.rreqq.pri = 0;
1287 fp->mode.rreqq.src = 0;
1288 xfer->dst = FWLOCALBUS | fc->ongonode;
1289 fp->mode.rreqq.dst = htons(xfer->dst);
1290 fp->mode.rreqq.dest_lo = htonl(addr);
1291 xfer->act.hand = fw_bus_explore_callback;
1292
1293 if (firewire_debug)
1294 printf("node%d: explore addr=0x%x\n",
1295 fc->ongonode, fc->ongoaddr);
1296 err = fw_asyreq(fc, -1, xfer);
1297 if(err){
1298 fw_xfer_free( xfer);
1299 return;
1300 }
1301#endif
1302 return;
1303done:
1304 /* fw_attach_devs */
1305 fc->status = FWBUSEXPDONE;
1306 if (firewire_debug)
1307 printf("bus_explore done\n");
1308 fw_attach_dev(fc);
1309 return;
1310
1311}
1312
1313/* Portable Async. request read quad */
1314struct fw_xfer *
1315asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt,
1316 u_int32_t addr_hi, u_int32_t addr_lo,
1317 void (*hand) __P((struct fw_xfer*)))
1318{
1319 struct fw_xfer *xfer;
1320 struct fw_pkt *fp;
1321 int err;
1322
1323 xfer = fw_xfer_alloc(M_FWXFER);
1324 if(xfer == NULL){
1325 return NULL;
1326 }
1327 xfer->send.len = 16;
1328 xfer->spd = spd; /* XXX:min(spd, fc->spd) */
1329 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1330 if(xfer->send.buf == NULL){
1331 fw_xfer_free( xfer);
1332 return NULL;
1333 }
1334
1335 xfer->send.off = 0;
1336 fp = (struct fw_pkt *)xfer->send.buf;
1337 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff);
1338 if(tl & FWP_TL_VALID){
1339 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1340 }else{
1341 fp->mode.rreqq.tlrt = 0;
1342 }
1343 fp->mode.rreqq.tlrt |= rt & 0x3;
1344 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1345 fp->mode.rreqq.pri = 0;
1346 fp->mode.rreqq.src = 0;
1347 xfer->dst = addr_hi >> 16;
1348 fp->mode.rreqq.dst = htons(xfer->dst);
1349 fp->mode.rreqq.dest_lo = htonl(addr_lo);
1350 xfer->act.hand = hand;
1351
1352 err = fw_asyreq(fc, -1, xfer);
1353 if(err){
1354 fw_xfer_free( xfer);
1355 return NULL;
1356 }
1357 return xfer;
1358}
1359
1360/*
1361 * Callback for the IEEE1394 bus information collection.
1362 */
1363static void
1364fw_bus_explore_callback(struct fw_xfer *xfer)
1365{
1366 struct firewire_comm *fc;
1367 struct fw_pkt *sfp,*rfp;
1368 struct csrhdr *chdr;
1369 struct csrdir *csrd;
1370 struct csrreg *csrreg;
1371 u_int32_t offset;
1372
1373
1374 if(xfer == NULL) {
1375 printf("xfer == NULL\n");
1376 return;
1377 }
1378 fc = xfer->fc;
1379
1380 if (firewire_debug)
1381 printf("node%d: callback addr=0x%x\n",
1382 fc->ongonode, fc->ongoaddr);
1383
1384 if(xfer->resp != 0){
1385 printf("node%d: resp=%d addr=0x%x\n",
1386 fc->ongonode, xfer->resp, fc->ongoaddr);
1387 fc->retry_count++;
1388 goto nextnode;
1389 }
1390
1391 if(xfer->send.buf == NULL){
1392 printf("node%d: send.buf=NULL addr=0x%x\n",
1393 fc->ongonode, fc->ongoaddr);
1394 fc->retry_count++;
1395 goto nextnode;
1396 }
1397 sfp = (struct fw_pkt *)xfer->send.buf;
1398
1399 if(xfer->recv.buf == NULL){
1400 printf("node%d: recv.buf=NULL addr=0x%x\n",
1401 fc->ongonode, fc->ongoaddr);
1402 fc->retry_count++;
1403 goto nextnode;
1404 }
1405 rfp = (struct fw_pkt *)xfer->recv.buf;
1406#if 0
1407 {
1408 u_int32_t *qld;
1409 int i;
1410 qld = (u_int32_t *)xfer->recv.buf;
1411 printf("len:%d\n", xfer->recv.len);
1412 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1413 printf("0x%08x ", ntohl(rfp->mode.ld[i/4]));
1414 if((i % 16) == 15) printf("\n");
1415 }
1416 if((i % 16) != 15) printf("\n");
1417 }
1418#endif
1419 if(fc->ongodev == NULL){
1420 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){
1421 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1422 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1423/* If CSR is minimal confinguration, more investgation is not needed. */
1424 if(chdr->info_len == 1){
1425 if (firewire_debug)
1426 printf("node%d: minimal config\n",
1427 fc->ongonode);
1428 goto nextnode;
1429 }else{
1430 fc->ongoaddr = CSRROMOFF + 0xc;
1431 }
1432 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){
1433 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1434 fc->ongoaddr = CSRROMOFF + 0x10;
1435 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){
1436 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1437 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1438 if (firewire_debug)
1439 printf("node%d: eui64 is zero.\n",
1440 fc->ongonode);
1441 goto nextnode;
1442 }
1443 fc->ongoaddr = CSRROMOFF;
1444 }
1445 }else{
1446 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1447 if(fc->ongoaddr > fc->ongodev->rommax){
1448 fc->ongodev->rommax = fc->ongoaddr;
1449 }
1450 csrd = SLIST_FIRST(&fc->ongocsr);
1451 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1452 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1453 offset = CSRROMOFF;
1454 }else{
1455 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1456 offset = csrd->off;
1457 }
1458 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1459 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1460 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1461 csrd = SLIST_FIRST(&fc->csrfree);
1462 if(csrd == NULL){
1463 goto nextnode;
1464 }else{
1465 csrd->ongoaddr = fc->ongoaddr;
1466 fc->ongoaddr += csrreg->val * 4;
1467 csrd->off = fc->ongoaddr;
1468 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1469 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1470 goto nextaddr;
1471 }
1472 }
1473 }
1474 fc->ongoaddr += 4;
1475 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1476 (fc->ongodev->rommax < 0x414)){
1477 if(fc->ongodev->rommax <= 0x414){
1478 csrd = SLIST_FIRST(&fc->csrfree);
1479 if(csrd == NULL) goto nextnode;
1480 csrd->off = fc->ongoaddr;
1481 csrd->ongoaddr = fc->ongoaddr;
1482 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1483 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1484 }
1485 goto nextaddr;
1486 }
1487
1488 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1489 if(csrd == NULL){
1490 goto nextnode;
1491 };
1492 fc->ongoaddr = csrd->ongoaddr + 4;
1493 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1494 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1495 csrd = SLIST_FIRST(&fc->ongocsr);
1496 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1497 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1498 offset = CSRROMOFF;
1499 }else{
1500 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1501 offset = csrd->off;
1502 }
1503 }
1504 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1505 goto nextnode;
1506 }
1507 }
1508nextaddr:
1509 fw_xfer_free( xfer);
1510 fw_bus_explore(fc);
1511 return;
1512nextnode:
1513 fw_xfer_free( xfer);
1514 fc->ongonode++;
1515/* housekeeping work space */
1516 fc->ongoaddr = CSRROMOFF;
1517 fc->ongodev = NULL;
1518 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1519 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1520 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1521 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1522 }
1523 fw_bus_explore(fc);
1524 return;
1525}
1526
1527/*
1528 * To obtain CSR register values.
1529 */
1530u_int32_t
1531getcsrdata(struct fw_device *fwdev, u_int8_t key)
1532{
1533 int i;
1534 struct csrhdr *chdr;
1535 struct csrreg *creg;
1536 chdr = (struct csrhdr *)&fwdev->csrrom[0];
1537 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){
1538 creg = (struct csrreg *)&fwdev->csrrom[i/4];
1539 if(creg->key == key){
1540 return (u_int32_t)creg->val;
1541 }
1542 }
1543 return 0;
1544}
1545
1546/*
1547 * To attach sub-devices layer onto IEEE1394 bus.
1548 */
1549static void
1550fw_attach_dev(struct firewire_comm *fc)
1551{
1552 struct fw_device *fwdev;
1553 struct fw_xfer *xfer;
1554 int i, err;
1555 device_t *devlistp;
1556 int devcnt;
1557 struct firewire_dev_comm *fdc;
1558 u_int32_t spec, ver;
1559
1560 STAILQ_FOREACH(fwdev, &fc->devices, link) {
1561 if(fwdev->status == FWDEVINIT){
1562 spec = getcsrdata(fwdev, CSRKEY_SPEC);
1563 if(spec == 0)
1564 continue;
1565 ver = getcsrdata(fwdev, CSRKEY_VER);
1566 if(ver == 0)
1567 continue;
1568 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf;
1569
1570 device_printf(fc->bdev, "Device ");
1571 switch(spec){
1572 case CSRVAL_ANSIT10:
1573 switch(ver){
1574 case CSRVAL_T10SBP2:
1575 printf("SBP-II");
1576 break;
1577 default:
1578 break;
1579 }
1580 break;
1581 case CSRVAL_1394TA:
1582 switch(ver){
1583 case CSR_PROTAVC:
1584 printf("AV/C");
1585 break;
1586 case CSR_PROTCAL:
1587 printf("CAL");
1588 break;
1589 case CSR_PROTEHS:
1590 printf("EHS");
1591 break;
1592 case CSR_PROTHAVI:
1593 printf("HAVi");
1594 break;
1595 case CSR_PROTCAM104:
1596 printf("1394 Cam 1.04");
1597 break;
1598 case CSR_PROTCAM120:
1599 printf("1394 Cam 1.20");
1600 break;
1601 case CSR_PROTCAM130:
1602 printf("1394 Cam 1.30");
1603 break;
1604 case CSR_PROTDPP:
1605 printf("1394 Direct print");
1606 break;
1607 case CSR_PROTIICP:
1608 printf("Industrial & Instrument");
1609 break;
1610 default:
1611 printf("unknown 1394TA");
1612 break;
1613 }
1614 break;
1615 default:
1616 printf("unknown spec");
1617 break;
1618 }
1619 fwdev->status = FWDEVATTACHED;
1620 printf("\n");
1621 }
1622 }
1623 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1624 if( err != 0 )
1625 return;
1626 for( i = 0 ; i < devcnt ; i++){
1627 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1628 fdc = device_get_softc(devlistp[i]);
1629 if (fdc->post_explore != NULL)
1630 fdc->post_explore(fdc);
1631 }
1632 }
1633 free(devlistp, M_TEMP);
1634
1635 /* call pending handlers */
1636 i = 0;
1637 while ((xfer = STAILQ_FIRST(&fc->pending))) {
1638 STAILQ_REMOVE_HEAD(&fc->pending, link);
1639 i++;
1640 if (xfer->act.hand)
1641 xfer->act.hand(xfer);
1642 }
1643 if (i > 0)
1644 printf("fw_attach_dev: %d pending handlers called\n", i);
1645 if (fc->retry_count > 0) {
1646 printf("probe failed for %d node\n", fc->retry_count);
1647#if 0
1648 callout_reset(&fc->retry_probe_callout, hz*2,
1649 (void *)fc->ibr, (void *)fc);
1650#endif
1651 }
1652 return;
1653}
1654
1655/*
1656 * To allocate uniq transaction label.
1657 */
1658static int
1659fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1660{
1661 u_int i;
1662 struct tlabel *tl, *tmptl;
1663 int s;
1664 static u_int32_t label = 0;
1665
1666 s = splfw();
1667 for( i = 0 ; i < 0x40 ; i ++){
1668 label = (label + 1) & 0x3f;
1669 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1670 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1671 if(tmptl->xfer->dst == xfer->dst) break;
1672 }
1673 if(tmptl == NULL) {
1674 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT);
1675 if (tl == NULL) {
1676 splx(s);
1677 return (-1);
1678 }
1679 tl->xfer = xfer;
1680 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1681 splx(s);
1682 if (firewire_debug > 1)
1683 printf("fw_get_tlabel: dst=%d tl=%d\n",
1684 xfer->dst, label);
1685 return(label);
1686 }
1687 }
1688 splx(s);
1689
1690 printf("fw_get_tlabel: no free tlabel\n");
1691 return(-1);
1692}
1693
1694/*
1695 * Generic packet receving process.
1696 */
1697void
1698fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd)
1699{
1700 struct fw_pkt *fp, *resfp;
1701 struct fw_xfer *xfer;
1702 struct fw_bind *bind;
1703 struct firewire_softc *sc;
1704 int s;
1705#if 0
1706 {
1707 u_int32_t *qld;
1708 int i;
1709 qld = (u_int32_t *)buf;
1710 printf("spd %d len:%d\n", spd, len);
1711 for( i = 0 ; i <= len && i < 32; i+= 4){
1712 printf("0x%08x ", ntohl(qld[i/4]));
1713 if((i % 16) == 15) printf("\n");
1714 }
1715 if((i % 16) != 15) printf("\n");
1716 }
1717#endif
1718 fp = (struct fw_pkt *)(buf + off);
1719 switch(fp->mode.common.tcode){
1720 case FWTCODE_WRES:
1721 case FWTCODE_RRESQ:
1722 case FWTCODE_RRESB:
1723 case FWTCODE_LRES:
1724 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
1725 fp->mode.hdr.tlrt >> 2);
1726 if(xfer == NULL) {
1727 printf("fw_rcv: unknown response "
1728 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n",
1729 fp->mode.common.tcode,
1730 ntohs(fp->mode.hdr.src),
1731 fp->mode.hdr.tlrt >> 2,
1732 fp->mode.hdr.tlrt & 3,
1733 fp->mode.rresq.data);
1734#if 1
1735 printf("try ad-hoc work around!!\n");
1736 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
1737 (fp->mode.hdr.tlrt >> 2)^3);
1738 if (xfer == NULL) {
1739 printf("no use...\n");
1740 goto err;
1741 }
1742#else
1743 goto err;
1744#endif
1745 }
1746 switch(xfer->act_type){
1747 case FWACT_XFER:
1748 if((xfer->sub >= 0) &&
1749 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){
1750 xfer->resp = EINVAL;
1751 fw_xfer_done(xfer);
1752 goto err;
1753 }
1754 xfer->recv.len = len;
1755 xfer->recv.off = off;
1756 xfer->recv.buf = buf;
1757 xfer->resp = 0;
1758 fw_xfer_done(xfer);
1759 return;
1760 break;
1761 case FWACT_CH:
1762 default:
1763 goto err;
1764 break;
1765 }
1766 break;
1767 case FWTCODE_WREQQ:
1768 case FWTCODE_WREQB:
1769 case FWTCODE_RREQQ:
1770 case FWTCODE_RREQB:
1771 case FWTCODE_LREQ:
1772 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi),
1773 ntohl(fp->mode.rreqq.dest_lo));
1774 if(bind == NULL){
1775#if __FreeBSD_version >= 500000
1776 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n",
1777#else
1778 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n",
1779#endif
1780 ntohs(fp->mode.rreqq.dest_hi),
1781 ntohl(fp->mode.rreqq.dest_lo),
1782 fp->mode.common.tcode);
1783 if (fc->status == FWBUSRESET) {
1784 printf("fw_rcv: cannot respond(bus reset)!\n");
1785 goto err;
1786 }
1787 xfer = fw_xfer_alloc(M_FWXFER);
1788 if(xfer == NULL){
1789 return;
1790 }
1791 xfer->spd = spd;
1792 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1793 resfp = (struct fw_pkt *)xfer->send.buf;
1794 switch(fp->mode.common.tcode){
1795 case FWTCODE_WREQQ:
1796 case FWTCODE_WREQB:
1797 resfp->mode.hdr.tcode = FWTCODE_WRES;
1798 xfer->send.len = 12;
1799 break;
1800 case FWTCODE_RREQQ:
1801 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1802 xfer->send.len = 16;
1803 break;
1804 case FWTCODE_RREQB:
1805 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1806 xfer->send.len = 16;
1807 break;
1808 case FWTCODE_LREQ:
1809 resfp->mode.hdr.tcode = FWTCODE_LRES;
1810 xfer->send.len = 16;
1811 break;
1812 }
1813 resfp->mode.hdr.dst = fp->mode.hdr.src;
1814 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1815 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1816 resfp->mode.rresb.rtcode = 7;
1817 resfp->mode.rresb.extcode = 0;
1818 resfp->mode.rresb.len = 0;
1819/*
1820 xfer->act.hand = fw_asy_callback;
1821*/
1822 xfer->act.hand = fw_xfer_free;
1823 if(fw_asyreq(fc, -1, xfer)){
1824 fw_xfer_free( xfer);
1825 return;
1826 }
1827 goto err;
1828 }
1829 switch(bind->xfer->act_type){
1830 case FWACT_XFER:
1831 xfer = fw_xfer_alloc(M_FWXFER);
1832 if(xfer == NULL) goto err;
1833 xfer->fc = bind->xfer->fc;
1834 xfer->sc = bind->xfer->sc;
1835 xfer->recv.buf = buf;
1836 xfer->recv.len = len;
1837 xfer->recv.off = off;
1838 xfer->spd = spd;
1839 xfer->act.hand = bind->xfer->act.hand;
1840 if (fc->status != FWBUSRESET)
1841 xfer->act.hand(xfer);
1842 else
1843 STAILQ_INSERT_TAIL(&fc->pending, xfer, link);
1844 return;
1845 break;
1846 case FWACT_CH:
1847 if(fc->ir[bind->xfer->sub]->queued >=
1848 fc->ir[bind->xfer->sub]->maxq){
1849 device_printf(fc->bdev,
1850 "Discard a packet %x %d\n",
1851 bind->xfer->sub,
1852 fc->ir[bind->xfer->sub]->queued);
1853 goto err;
1854 }
1855 xfer = fw_xfer_alloc(M_FWXFER);
1856 if(xfer == NULL) goto err;
1857 xfer->recv.buf = buf;
1858 xfer->recv.len = len;
1859 xfer->recv.off = off;
1860 xfer->spd = spd;
1861 s = splfw();
1862 fc->ir[bind->xfer->sub]->queued++;
1863 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link);
1864 splx(s);
1865
1866 wakeup((caddr_t)fc->ir[bind->xfer->sub]);
1867
1868 return;
1869 break;
1870 default:
1871 goto err;
1872 break;
1873 }
1874 break;
1875 case FWTCODE_STREAM:
1876 {
1877 struct fw_xferq *xferq;
1878
1879 xferq = fc->ir[sub];
1880#if 0
1881 printf("stream rcv dma %d len %d off %d spd %d\n",
1882 sub, len, off, spd);
1883#endif
1884 if(xferq->queued >= xferq->maxq) {
1885 printf("receive queue is full\n");
1886 goto err;
1887 }
1888 xfer = fw_xfer_alloc(M_FWXFER);
1889 if(xfer == NULL) goto err;
1890 xfer->recv.buf = buf;
1891 xfer->recv.len = len;
1892 xfer->recv.off = off;
1893 xfer->spd = spd;
1894 s = splfw();
1895 xferq->queued++;
1896 STAILQ_INSERT_TAIL(&xferq->q, xfer, link);
1897 splx(s);
1898 sc = device_get_softc(fc->bdev);
1899#if __FreeBSD_version >= 500000
1900 if (SEL_WAITING(&xferq->rsel))
1901#else
1902 if (&xferq->rsel.si_pid != 0)
1903#endif
1904 selwakeup(&xferq->rsel);
1905 if (xferq->flag & FWXFERQ_WAKEUP) {
1906 xferq->flag &= ~FWXFERQ_WAKEUP;
1907 wakeup((caddr_t)xferq);
1908 }
1909 if (xferq->flag & FWXFERQ_HANDLER) {
1910 xferq->hand(xferq);
1911 }
1912 return;
1913 break;
1914 }
1915 default:
1916 printf("fw_rcv: unknow tcode\n");
1917 break;
1918 }
1919err:
1920 free(buf, M_FW);
1921}
1922
1923/*
1924 * Post process for Bus Manager election process.
1925 */
1926static void
1927fw_try_bmr_callback(struct fw_xfer *xfer)
1928{
1929 struct fw_pkt *rfp;
1930 struct firewire_comm *fc;
1931 int bmr;
1932
1933 if (xfer == NULL)
1934 return;
1935 fc = xfer->fc;
1936 if (xfer->resp != 0)
1937 goto error;
1938 if (xfer->send.buf == NULL)
1939 goto error;
1940 if (xfer->recv.buf == NULL)
1941 goto error;
1942 rfp = (struct fw_pkt *)xfer->recv.buf;
1943 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE)
1944 goto error;
1945
1946 bmr = ntohl(rfp->mode.lres.payload[0]);
1947 if (bmr == 0x3f)
1948 bmr = fc->nodeid;
1949
1950 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
1951 device_printf(fc->bdev, "new bus manager %d ",
1952 CSRARC(fc, BUS_MGR_ID));
1953 if(bmr == fc->nodeid){
1954 printf("(me)\n");
1955 fw_bmr(fc);
1956 }else{
1957 printf("\n");
1958 }
1959error:
1960 fw_xfer_free(xfer);
1961}
1962
1963/*
1964 * To candidate Bus Manager election process.
1965 */
1966static void
1967fw_try_bmr(void *arg)
1968{
1969 struct fw_xfer *xfer;
1970 struct firewire_comm *fc = (struct firewire_comm *)arg;
1971 struct fw_pkt *fp;
1972 int err = 0;
1973
1974 xfer = fw_xfer_alloc(M_FWXFER);
1975 if(xfer == NULL){
1976 return;
1977 }
1978 xfer->send.len = 24;
1979 xfer->spd = 0;
1980 xfer->send.buf = malloc(24, M_FW, M_NOWAIT);
1981 if(xfer->send.buf == NULL){
1982 fw_xfer_free( xfer);
1983 return;
1984 }
1985
1986 fc->status = FWBUSMGRELECT;
1987
1988 xfer->send.off = 0;
1989 fp = (struct fw_pkt *)xfer->send.buf;
1990 fp->mode.lreq.dest_hi = htons(0xffff);
1991 fp->mode.lreq.tlrt = 0;
1992 fp->mode.lreq.tcode = FWTCODE_LREQ;
1993 fp->mode.lreq.pri = 0;
1994 fp->mode.lreq.src = 0;
1995 fp->mode.lreq.len = htons(8);
1996 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP);
1997 xfer->dst = FWLOCALBUS | fc->irm;
1998 fp->mode.lreq.dst = htons(xfer->dst);
1999 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID);
2000 fp->mode.lreq.payload[0] = htonl(0x3f);
2001 fp->mode.lreq.payload[1] = htonl(fc->nodeid);
2002 xfer->act_type = FWACT_XFER;
2003 xfer->act.hand = fw_try_bmr_callback;
2004
2005 err = fw_asyreq(fc, -1, xfer);
2006 if(err){
2007 fw_xfer_free( xfer);
2008 return;
2009 }
2010 return;
2011}
2012
2013#ifdef FW_VMACCESS
2014/*
2015 * Software implementation for physical memory block access.
2016 * XXX:Too slow, usef for debug purpose only.
2017 */
2018static void
2019fw_vmaccess(struct fw_xfer *xfer){
2020 struct fw_pkt *rfp, *sfp = NULL;
2021 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off);
2022
2023 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n",
2024 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2025 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2026 if(xfer->resp != 0){
2027 fw_xfer_free( xfer);
2028 return;
2029 }
2030 if(xfer->recv.buf == NULL){
2031 fw_xfer_free( xfer);
2032 return;
2033 }
2034 rfp = (struct fw_pkt *)xfer->recv.buf;
2035 switch(rfp->mode.hdr.tcode){
2036 /* XXX need fix for 64bit arch */
2037 case FWTCODE_WREQB:
2038 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2039 xfer->send.len = 12;
2040 sfp = (struct fw_pkt *)xfer->send.buf;
2041 bcopy(rfp->mode.wreqb.payload,
2042 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2043 sfp->mode.wres.tcode = FWTCODE_WRES;
2044 sfp->mode.wres.rtcode = 0;
2045 break;
2046 case FWTCODE_WREQQ:
2047 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2048 xfer->send.len = 12;
2049 sfp->mode.wres.tcode = FWTCODE_WRES;
2050 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2051 sfp->mode.wres.rtcode = 0;
2052 break;
2053 case FWTCODE_RREQB:
2054 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2055 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2056 sfp = (struct fw_pkt *)xfer->send.buf;
2057 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2058 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
2059 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2060 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2061 sfp->mode.rresb.rtcode = 0;
2062 sfp->mode.rresb.extcode = 0;
2063 break;
2064 case FWTCODE_RREQQ:
2065 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2066 xfer->send.len = 16;
2067 sfp = (struct fw_pkt *)xfer->send.buf;
2068 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2069 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2070 sfp->mode.rresb.rtcode = 0;
2071 break;
2072 default:
2073 fw_xfer_free( xfer);
2074 return;
2075 }
2076 xfer->send.off = 0;
2077 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2078 xfer->dst = ntohs(rfp->mode.hdr.src);
2079 xfer->act.hand = fw_xfer_free;
2080 xfer->retry_req = fw_asybusy;
2081
2082 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2083 sfp->mode.hdr.pri = 0;
2084
2085 fw_asyreq(xfer->fc, -1, xfer);
2086/**/
2087 return;
2088}
2089#endif
2090
2091/*
2092 * CRC16 check-sum for IEEE1394 register blocks.
2093 */
2094u_int16_t
2095fw_crc16(u_int32_t *ptr, u_int32_t len){
2096 u_int32_t i, sum, crc = 0;
2097 int shift;
2098 len = (len + 3) & ~3;
2099 for(i = 0 ; i < len ; i+= 4){
2100 for( shift = 28 ; shift >= 0 ; shift -= 4){
2101 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2102 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2103 }
2104 crc &= 0xffff;
2105 }
2106 return((u_int16_t) crc);
2107}
2108
2109static int
2110fw_bmr(struct firewire_comm *fc)
2111{
2112 struct fw_device fwdev;
2113 int cmstr;
2114
2115 /* XXX Assume that the current root node is cycle master capable */
2116 cmstr = fc->max_node;
2117 /* If I am the bus manager, optimize gapcount */
2118 if(fc->max_hop <= MAX_GAPHOP ){
2119 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1,
2120 gap_cnt[fc->max_hop]);
2121 }
2122 /* If we are the cycle master, nothing to do */
2123 if (cmstr == fc->nodeid)
2124 return 0;
2125 /* Bus probe has not finished, make dummy fwdev for cmstr */
2126 bzero(&fwdev, sizeof(fwdev));
2127 fwdev.fc = fc;
2128 fwdev.dst = cmstr;
2129 fwdev.speed = 0;
2130 fwdev.maxrec = 8; /* 512 */
2131 fwdev.status = FWDEVINIT;
2132 /* Set cmstr bit on the cycle master */
2133 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2134 0xffff, 0xf0000000 | STATE_SET, 1 << 16,
2135 fw_asy_callback_free);
2136
2137 return 0;
2138}
2139
2140DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0);
2141MODULE_VERSION(firewire, 1);
2 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the acknowledgement as bellow:
15 *
16 * This product includes software developed by K. Kobayashi and H. Shimokawa
17 *
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 * $FreeBSD: head/sys/dev/firewire/firewire.c 111040 2003-02-17 14:24:06Z simokawa $
34 *
35 */
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/types.h>
40#include <sys/mbuf.h>
41#include <sys/socket.h>
42#include <sys/socketvar.h>
43
44#include <sys/kernel.h>
45#include <sys/malloc.h>
46#include <sys/conf.h>
47#include <sys/uio.h>
48#include <sys/sysctl.h>
49
50#include <machine/cpufunc.h> /* for rdtsc proto for clock.h below */
51#include <machine/clock.h>
52
53#include <sys/bus.h> /* used by smbus and newbus */
54
55#include <dev/firewire/firewire.h>
56#include <dev/firewire/firewirereg.h>
57#include <dev/firewire/fwmem.h>
58#include <dev/firewire/iec13213.h>
59#include <dev/firewire/iec68113.h>
60
61int firewire_debug=0, try_bmr=1;
62SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
63 "FireWire driver debug flag");
64SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
65SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
66 "Try to be a bus manager");
67
68MALLOC_DEFINE(M_FW, "firewire", "FireWire");
69MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
70
71#define FW_MAXASYRTY 4
72#define FW_MAXDEVRCNT 4
73
74#define XFER_TIMEOUT 0
75
76devclass_t firewire_devclass;
77
78static int firewire_match __P((device_t));
79static int firewire_attach __P((device_t));
80static int firewire_detach __P((device_t));
81#if 0
82static int firewire_shutdown __P((device_t));
83#endif
84static device_t firewire_add_child __P((device_t, int, const char *, int));
85static void fw_try_bmr __P((void *));
86static void fw_try_bmr_callback __P((struct fw_xfer *));
87static void fw_asystart __P((struct fw_xfer *));
88static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *));
89static void fw_bus_probe __P((struct firewire_comm *));
90static void fw_bus_explore __P((struct firewire_comm *));
91static void fw_bus_explore_callback __P((struct fw_xfer *));
92static void fw_attach_dev __P((struct firewire_comm *));
93#ifdef FW_VMACCESS
94static void fw_vmaccess __P((struct fw_xfer *));
95#endif
96struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t,
97 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *))));
98static int fw_bmr __P((struct firewire_comm *));
99
100static device_method_t firewire_methods[] = {
101 /* Device interface */
102 DEVMETHOD(device_probe, firewire_match),
103 DEVMETHOD(device_attach, firewire_attach),
104 DEVMETHOD(device_detach, firewire_detach),
105 DEVMETHOD(device_suspend, bus_generic_suspend),
106 DEVMETHOD(device_resume, bus_generic_resume),
107 DEVMETHOD(device_shutdown, bus_generic_shutdown),
108
109 /* Bus interface */
110 DEVMETHOD(bus_add_child, firewire_add_child),
111 DEVMETHOD(bus_print_child, bus_generic_print_child),
112
113 { 0, 0 }
114};
115char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"};
116
117#define MAX_GAPHOP 16
118u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17,
119 20, 23, 25, 28, 31, 33, 36, 39, 42};
120
121extern struct cdevsw firewire_cdevsw;
122
123static driver_t firewire_driver = {
124 "firewire",
125 firewire_methods,
126 sizeof(struct firewire_softc),
127};
128
129/*
130 * Lookup fwdev by node id.
131 */
132struct fw_device *
133fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
134{
135 struct fw_device *fwdev;
136 int s;
137
138 s = splfw();
139 STAILQ_FOREACH(fwdev, &fc->devices, link)
140 if (fwdev->dst == dst)
141 break;
142 splx(s);
143
144 if(fwdev == NULL) return NULL;
145 if(fwdev->status == FWDEVINVAL) return NULL;
146 return fwdev;
147}
148
149/*
150 * Lookup fwdev by EUI64.
151 */
152struct fw_device *
153fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
154{
155 struct fw_device *fwdev;
156 int s;
157
158 s = splfw();
159 STAILQ_FOREACH(fwdev, &fc->devices, link)
160 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
161 break;
162 splx(s);
163
164 if(fwdev == NULL) return NULL;
165 if(fwdev->status == FWDEVINVAL) return NULL;
166 return fwdev;
167}
168
169/*
170 * Async. request procedure for userland application.
171 */
172int
173fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
174{
175 int err = 0;
176 struct fw_xferq *xferq;
177 int tl = 0, len;
178 struct fw_pkt *fp;
179 int tcode;
180 struct tcode_info *info;
181
182 if(xfer == NULL) return EINVAL;
183 if(xfer->send.len > MAXREC(fc->maxrec)){
184 printf("send.len > maxrec\n");
185 return EINVAL;
186 }
187 if(xfer->act.hand == NULL){
188 printf("act.hand == NULL\n");
189 return EINVAL;
190 }
191 fp = (struct fw_pkt *)xfer->send.buf;
192
193 tcode = fp->mode.common.tcode & 0xf;
194 info = &fc->tcode[tcode];
195 if (info->flag == 0) {
196 printf("invalid tcode=%d\n", tcode);
197 return EINVAL;
198 }
199 if (info->flag & FWTI_REQ)
200 xferq = fc->atq;
201 else
202 xferq = fc->ats;
203 len = info->hdr_len;
204 if (info->flag & FWTI_BLOCK_STR)
205 len += ntohs(fp->mode.stream.len);
206 else if (info->flag & FWTI_BLOCK_ASY)
207 len += ntohs(fp->mode.rresb.len);
208 if( len > xfer->send.len ){
209 printf("len(%d) > send.len(%d) (tcode=%d)\n",
210 len, xfer->send.len, tcode);
211 return EINVAL;
212 }
213 xfer->send.len = len;
214
215 if(xferq->start == NULL){
216 printf("xferq->start == NULL\n");
217 return EINVAL;
218 }
219 if(!(xferq->queued < xferq->maxq)){
220 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
221 xferq->queued);
222 return EINVAL;
223 }
224
225
226 if (info->flag & FWTI_TLABEL) {
227 if((tl = fw_get_tlabel(fc, xfer)) == -1 )
228 return EIO;
229 fp->mode.hdr.tlrt = tl << 2;
230 }
231
232 xfer->tl = tl;
233 xfer->tcode = tcode;
234 xfer->resp = 0;
235 xfer->fc = fc;
236 xfer->q = xferq;
237 xfer->act_type = FWACT_XFER;
238 xfer->retry_req = fw_asybusy;
239
240 fw_asystart(xfer);
241 return err;
242}
243/*
244 * Wakeup blocked process.
245 */
246void
247fw_asy_callback(struct fw_xfer *xfer){
248 wakeup(xfer);
249 return;
250}
251/*
252 * Postpone to later retry.
253 */
254void fw_asybusy(struct fw_xfer *xfer){
255#if 1
256 printf("fw_asybusy\n");
257#endif
258#if XFER_TIMEOUT
259 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch);
260#endif
261/*
262 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
263*/
264 DELAY(20000);
265 fw_asystart(xfer);
266 return;
267}
268#if XFER_TIMEOUT
269/*
270 * Post timeout for async. request.
271 */
272void
273fw_xfer_timeout(void *arg)
274{
275 int s;
276 struct fw_xfer *xfer;
277
278 xfer = (struct fw_xfer *)arg;
279 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp);
280 /* XXX set error code */
281 s = splfw();
282 xfer->act.hand(xfer);
283 splx(s);
284}
285#endif
286/*
287 * Async. request with given xfer structure.
288 */
289static void
290fw_asystart(struct fw_xfer *xfer)
291{
292 struct firewire_comm *fc = xfer->fc;
293 int s;
294 if(xfer->retry++ >= fc->max_asyretry){
295 xfer->resp = EBUSY;
296 xfer->state = FWXF_BUSY;
297 xfer->act.hand(xfer);
298 return;
299 }
300#if 0 /* XXX allow bus explore packets only after bus rest */
301 if (fc->status < FWBUSEXPLORE) {
302 xfer->resp = EAGAIN;
303 xfer->state = FWXF_BUSY;
304 if (xfer->act.hand != NULL)
305 xfer->act.hand(xfer);
306 return;
307 }
308#endif
309 s = splfw();
310 xfer->state = FWXF_INQ;
311 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
312 xfer->q->queued ++;
313 splx(s);
314 /* XXX just queue for mbuf */
315 if (xfer->mbuf == NULL)
316 xfer->q->start(fc);
317#if XFER_TIMEOUT
318 if (xfer->act.hand != NULL)
319 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz);
320#endif
321 return;
322}
323
324static int
325firewire_match( device_t dev )
326{
327 device_set_desc(dev, "IEEE1394(FireWire) bus");
328 return -140;
329}
330
331static void
332firewire_xfer_timeout(struct firewire_comm *fc)
333{
334 struct fw_xfer *xfer;
335 struct tlabel *tl;
336 struct timeval tv;
337 struct timeval split_timeout;
338 int i, s;
339
340 split_timeout.tv_sec = 6;
341 split_timeout.tv_usec = 0;
342
343 microtime(&tv);
344 timevalsub(&tv, &split_timeout);
345
346 s = splfw();
347 for (i = 0; i < 0x40; i ++) {
348 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
349 xfer = tl->xfer;
350 if (timevalcmp(&xfer->tv, &tv, >))
351 /* the rests are newer than this */
352 break;
353 device_printf(fc->bdev,
354 "split transaction timeout dst=0x%x tl=0x%x\n",
355 xfer->dst, i);
356 xfer->resp = ETIMEDOUT;
357 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
358 switch (xfer->act_type) {
359 case FWACT_XFER:
360 fw_xfer_done(xfer);
361 break;
362 default:
363 /* ??? */
364 fw_xfer_free(xfer);
365 break;
366 }
367 }
368 }
369 splx(s);
370}
371
372static void
373firewire_watchdog(void *arg)
374{
375 struct firewire_comm *fc;
376
377 fc = (struct firewire_comm *)arg;
378 firewire_xfer_timeout(fc);
379 fc->timeout(fc);
380 callout_reset(&fc->timeout_callout, hz,
381 (void *)firewire_watchdog, (void *)fc);
382}
383
384/*
385 * The attach routine.
386 */
387static int
388firewire_attach( device_t dev )
389{
390 int i, unitmask, mn;
391 struct firewire_softc *sc = device_get_softc(dev);
392 device_t pa = device_get_parent(dev);
393 struct firewire_comm *fc;
394 dev_t d;
395
396 fc = (struct firewire_comm *)device_get_softc(pa);
397 sc->fc = fc;
398
399 unitmask = UNIT2MIN(device_get_unit(dev));
400
401 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
402 for ( i = 0 ; i < fc->nisodma ; i++ ){
403 mn = unitmask | i;
404 /* XXX device name should be improved */
405 d = make_dev(&firewire_cdevsw, unit2minor(mn),
406 UID_ROOT, GID_OPERATOR, 0660,
407 "fw%x", mn);
408#if __FreeBSD_version >= 500000
409 if (i == 0)
410 sc->dev = d;
411 else
412 dev_depends(sc->dev, d);
413#else
414 sc->dev[i] = d;
415#endif
416 }
417 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG),
418 UID_ROOT, GID_OPERATOR, 0660,
419 "fwmem%d", device_get_unit(dev));
420#if __FreeBSD_version >= 500000
421 dev_depends(sc->dev, d);
422#else
423 sc->dev[i] = d;
424#endif
425#if __FreeBSD_version >= 500000
426#define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */)
427#else
428#define CALLOUT_INIT(x) callout_init(x)
429#endif
430 CALLOUT_INIT(&sc->fc->timeout_callout);
431 CALLOUT_INIT(&sc->fc->bmr_callout);
432 CALLOUT_INIT(&sc->fc->retry_probe_callout);
433 CALLOUT_INIT(&sc->fc->busprobe_callout);
434
435 callout_reset(&sc->fc->timeout_callout, hz,
436 (void *)firewire_watchdog, (void *)sc->fc);
437
438 /* Locate our children */
439 bus_generic_probe(dev);
440
441 /* launch attachement of the added children */
442 bus_generic_attach(dev);
443
444#if 1
445 /* bus_reset */
446 fc->ibr(fc);
447#endif
448
449 return 0;
450}
451
452/*
453 * Attach it as child.
454 */
455static device_t
456firewire_add_child(device_t dev, int order, const char *name, int unit)
457{
458 device_t child;
459 struct firewire_softc *sc;
460
461 sc = (struct firewire_softc *)device_get_softc(dev);
462 child = device_add_child(dev, name, unit);
463 if (child) {
464 device_set_ivars(child, sc->fc);
465 device_probe_and_attach(child);
466 }
467
468 return child;
469}
470
471/*
472 * Dettach it.
473 */
474static int
475firewire_detach( device_t dev )
476{
477 struct firewire_softc *sc;
478
479 sc = (struct firewire_softc *)device_get_softc(dev);
480
481#if __FreeBSD_version >= 500000
482 destroy_dev(sc->dev);
483#else
484 {
485 int j;
486 for (j = 0 ; j < sc->fc->nisodma + 1; j++)
487 destroy_dev(sc->dev[j]);
488 }
489#endif
490 /* XXX xfree_free and untimeout on all xfers */
491 callout_stop(&sc->fc->timeout_callout);
492 callout_stop(&sc->fc->bmr_callout);
493 callout_stop(&sc->fc->retry_probe_callout);
494 callout_stop(&sc->fc->busprobe_callout);
495 free(sc->fc->topology_map, M_FW);
496 free(sc->fc->speed_map, M_FW);
497 bus_generic_detach(dev);
498 return(0);
499}
500#if 0
501static int
502firewire_shutdown( device_t dev )
503{
504 return 0;
505}
506#endif
507
508
509static void
510fw_xferq_drain(struct fw_xferq *xferq)
511{
512 struct fw_xfer *xfer;
513
514 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
515 STAILQ_REMOVE_HEAD(&xferq->q, link);
516 xfer->resp = EAGAIN;
517 switch (xfer->act_type) {
518 case FWACT_XFER:
519 fw_xfer_done(xfer);
520 break;
521 default:
522 /* ??? */
523 fw_xfer_free(xfer);
524 break;
525 }
526 }
527}
528
529void
530fw_drain_txq(struct firewire_comm *fc)
531{
532 int i;
533
534 fw_xferq_drain(fc->atq);
535 fw_xferq_drain(fc->ats);
536 for(i = 0; i < fc->nisodma; i++)
537 fw_xferq_drain(fc->it[i]);
538}
539
540/*
541 * Called after bus reset.
542 */
543void
544fw_busreset(struct firewire_comm *fc)
545{
546 int i;
547
548 switch(fc->status){
549 case FWBUSMGRELECT:
550 callout_stop(&fc->bmr_callout);
551 break;
552 default:
553 break;
554 }
555 fc->status = FWBUSRESET;
556 CSRARC(fc, STATE_CLEAR)
557 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
558 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
559 CSRARC(fc, NODE_IDS) = 0x3f;
560
561 CSRARC(fc, TOPO_MAP + 8) = 0;
562 fc->irm = -1;
563
564 fc->max_node = -1;
565
566 for(i = 2; i < 0x100/4 - 2 ; i++){
567 CSRARC(fc, SPED_MAP + i * 4) = 0;
568 }
569 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
570 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
571 CSRARC(fc, RESET_START) = 0;
572 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
573 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
574 CSRARC(fc, CYCLE_TIME) = 0x0;
575 CSRARC(fc, BUS_TIME) = 0x0;
576 CSRARC(fc, BUS_MGR_ID) = 0x3f;
577 CSRARC(fc, BANDWIDTH_AV) = 4915;
578 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
579 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
580 CSRARC(fc, IP_CHANNELS) = (1 << 31);
581
582 CSRARC(fc, CONF_ROM) = 0x04 << 24;
583 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
584 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
585 1 << 28 | 0xff << 16 | 0x09 << 8;
586 CSRARC(fc, CONF_ROM + 0xc) = 0;
587
588/* DV depend CSRs see blue book */
589 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
590 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
591
592 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
593 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
594}
595
596/* Call once after reboot */
597void fw_init(struct firewire_comm *fc)
598{
599 int i;
600 struct csrdir *csrd;
601#ifdef FW_VMACCESS
602 struct fw_xfer *xfer;
603 struct fw_bind *fwb;
604#endif
605
606 fc->max_asyretry = FW_MAXASYRTY;
607
608 fc->arq->queued = 0;
609 fc->ars->queued = 0;
610 fc->atq->queued = 0;
611 fc->ats->queued = 0;
612
613 fc->arq->psize = PAGE_SIZE;
614 fc->ars->psize = PAGE_SIZE;
615 fc->atq->psize = 0;
616 fc->ats->psize = 0;
617
618
619 fc->arq->buf = NULL;
620 fc->ars->buf = NULL;
621 fc->atq->buf = NULL;
622 fc->ats->buf = NULL;
623
624 fc->arq->flag = FWXFERQ_PACKET;
625 fc->ars->flag = FWXFERQ_PACKET;
626 fc->atq->flag = FWXFERQ_PACKET;
627 fc->ats->flag = FWXFERQ_PACKET;
628
629 STAILQ_INIT(&fc->atq->q);
630 STAILQ_INIT(&fc->ats->q);
631
632 for( i = 0 ; i < fc->nisodma ; i ++ ){
633 fc->it[i]->queued = 0;
634 fc->ir[i]->queued = 0;
635
636 fc->it[i]->start = NULL;
637 fc->ir[i]->start = NULL;
638
639 fc->it[i]->buf = NULL;
640 fc->ir[i]->buf = NULL;
641
642 fc->it[i]->flag = FWXFERQ_STREAM;
643 fc->ir[i]->flag = FWXFERQ_STREAM;
644
645 STAILQ_INIT(&fc->it[i]->q);
646 STAILQ_INIT(&fc->ir[i]->q);
647
648 STAILQ_INIT(&fc->it[i]->binds);
649 STAILQ_INIT(&fc->ir[i]->binds);
650 }
651
652 fc->arq->maxq = FWMAXQUEUE;
653 fc->ars->maxq = FWMAXQUEUE;
654 fc->atq->maxq = FWMAXQUEUE;
655 fc->ats->maxq = FWMAXQUEUE;
656
657 for( i = 0 ; i < fc->nisodma ; i++){
658 fc->ir[i]->maxq = FWMAXQUEUE;
659 fc->it[i]->maxq = FWMAXQUEUE;
660 }
661/* Initialize csr registers */
662 fc->topology_map = (struct fw_topology_map *)malloc(
663 sizeof(struct fw_topology_map),
664 M_FW, M_NOWAIT | M_ZERO);
665 fc->speed_map = (struct fw_speed_map *)malloc(
666 sizeof(struct fw_speed_map),
667 M_FW, M_NOWAIT | M_ZERO);
668 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
669 CSRARC(fc, TOPO_MAP + 4) = 1;
670 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
671 CSRARC(fc, SPED_MAP + 4) = 1;
672
673 STAILQ_INIT(&fc->devices);
674 STAILQ_INIT(&fc->pending);
675
676/* Initialize csr ROM work space */
677 SLIST_INIT(&fc->ongocsr);
678 SLIST_INIT(&fc->csrfree);
679 for( i = 0 ; i < FWMAXCSRDIR ; i++){
680 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT);
681 if(csrd == NULL) break;
682 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
683 }
684
685/* Initialize Async handlers */
686 STAILQ_INIT(&fc->binds);
687 for( i = 0 ; i < 0x40 ; i++){
688 STAILQ_INIT(&fc->tlabels[i]);
689 }
690
691/* DV depend CSRs see blue book */
692#if 0
693 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
694 CSRARC(fc, oPCR) = 0x8000007a;
695 for(i = 4 ; i < 0x7c/4 ; i+=4){
696 CSRARC(fc, i + oPCR) = 0x8000007a;
697 }
698
699 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
700 CSRARC(fc, iPCR) = 0x803f0000;
701 for(i = 4 ; i < 0x7c/4 ; i+=4){
702 CSRARC(fc, i + iPCR) = 0x0;
703 }
704#endif
705
706
707#ifdef FW_VMACCESS
708 xfer = fw_xfer_alloc();
709 if(xfer == NULL) return;
710
711 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
712 if(fwb == NULL){
713 fw_xfer_free(xfer);
714 }
715 xfer->act.hand = fw_vmaccess;
716 xfer->act_type = FWACT_XFER;
717 xfer->fc = fc;
718 xfer->sc = NULL;
719
720 fwb->start_hi = 0x2;
721 fwb->start_lo = 0;
722 fwb->addrlen = 0xffffffff;
723 fwb->xfer = xfer;
724 fw_bindadd(fc, fwb);
725#endif
726}
727
728/*
729 * To lookup binded process from IEEE1394 address.
730 */
731struct fw_bind *
732fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo)
733{
734 struct fw_bind *tfw;
735 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ;
736 tfw = STAILQ_NEXT(tfw, fclist)){
737 if(tfw->xfer->act_type != FWACT_NULL &&
738 tfw->start_hi == dest_hi &&
739 tfw->start_lo <= dest_lo &&
740 (tfw->start_lo + tfw->addrlen) > dest_lo){
741 return(tfw);
742 }
743 }
744 return(NULL);
745}
746
747/*
748 * To bind IEEE1394 address block to process.
749 */
750int
751fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
752{
753 struct fw_bind *tfw, *tfw2 = NULL;
754 int err = 0;
755 tfw = STAILQ_FIRST(&fc->binds);
756 if(tfw == NULL){
757 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
758 goto out;
759 }
760 if((tfw->start_hi > fwb->start_hi) ||
761 (tfw->start_hi == fwb->start_hi &&
762 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){
763 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
764 goto out;
765 }
766 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){
767 if((tfw->start_hi < fwb->start_hi) ||
768 (tfw->start_hi == fwb->start_hi &&
769 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){
770 tfw2 = STAILQ_NEXT(tfw, fclist);
771 if(tfw2 == NULL)
772 break;
773 if((tfw2->start_hi > fwb->start_hi) ||
774 (tfw2->start_hi == fwb->start_hi &&
775 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){
776 break;
777 }else{
778 err = EBUSY;
779 goto out;
780 }
781 }
782 }
783 if(tfw != NULL){
784 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist);
785 }else{
786 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist);
787 }
788out:
789 if(!err && fwb->xfer->act_type == FWACT_CH){
790 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist);
791 }
792 return err;
793}
794
795/*
796 * To free IEEE1394 address block.
797 */
798int
799fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
800{
801 int s;
802
803 s = splfw();
804 /* shall we check the existance? */
805 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
806 splx(s);
807 if (fwb->xfer)
808 fw_xfer_free(fwb->xfer);
809
810 return 0;
811}
812
813/*
814 * To free transaction label.
815 */
816static void
817fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
818{
819 struct tlabel *tl;
820 int s = splfw();
821
822 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
823 tl = STAILQ_NEXT(tl, link)){
824 if(tl->xfer == xfer){
825 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
826 free(tl, M_FW);
827 splx(s);
828 return;
829 }
830 }
831 splx(s);
832 return;
833}
834
835/*
836 * To obtain XFER structure by transaction label.
837 */
838static struct fw_xfer *
839fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
840{
841 struct fw_xfer *xfer;
842 struct tlabel *tl;
843 int s = splfw();
844
845 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
846 tl = STAILQ_NEXT(tl, link)){
847 if(tl->xfer->dst == node){
848 xfer = tl->xfer;
849 splx(s);
850 if (firewire_debug > 2)
851 printf("fw_tl2xfer: found tl=%d\n", tlabel);
852 return(xfer);
853 }
854 }
855 if (firewire_debug > 1)
856 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
857 splx(s);
858 return(NULL);
859}
860
861/*
862 * To allocate IEEE1394 XFER structure.
863 */
864struct fw_xfer *
865fw_xfer_alloc(struct malloc_type *type)
866{
867 struct fw_xfer *xfer;
868
869 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
870 if (xfer == NULL)
871 return xfer;
872
873 microtime(&xfer->tv);
874 xfer->sub = -1;
875 xfer->malloc = type;
876
877 return xfer;
878}
879
880/*
881 * IEEE1394 XFER post process.
882 */
883void
884fw_xfer_done(struct fw_xfer *xfer)
885{
886 if (xfer->act.hand == NULL)
887 return;
888
889#if XFER_TIMEOUT
890 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch);
891#endif
892
893 if (xfer->fc->status != FWBUSRESET)
894 xfer->act.hand(xfer);
895 else {
896 printf("fw_xfer_done: pending\n");
897 if (xfer->fc != NULL)
898 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link);
899 else
900 panic("fw_xfer_done: why xfer->fc is NULL?");
901 }
902}
903
904/*
905 * To free IEEE1394 XFER structure.
906 */
907void
908fw_xfer_free( struct fw_xfer* xfer)
909{
910 int s;
911 if(xfer == NULL ) return;
912 if(xfer->state == FWXF_INQ){
913 printf("fw_xfer_free FWXF_INQ\n");
914 s = splfw();
915 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
916 xfer->q->queued --;
917 splx(s);
918 }
919 if(xfer->fc != NULL){
920 if(xfer->state == FWXF_START){
921#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */
922 printf("fw_xfer_free FWXF_START\n");
923#endif
924 s = splfw();
925 xfer->q->drain(xfer->fc, xfer);
926 splx(s);
927 }
928 }
929 if(xfer->send.buf != NULL){
930 free(xfer->send.buf, M_FW);
931 }
932 if(xfer->recv.buf != NULL){
933 free(xfer->recv.buf, M_FW);
934 }
935 if(xfer->fc != NULL){
936 fw_tl_free(xfer->fc, xfer);
937 }
938 free(xfer, xfer->malloc);
939}
940
941static void
942fw_asy_callback_free(struct fw_xfer *xfer)
943{
944#if 0
945 printf("asyreq done state=%d resp=%d\n",
946 xfer->state, xfer->resp);
947#endif
948 fw_xfer_free(xfer);
949}
950
951/*
952 * To configure PHY.
953 */
954static void
955fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
956{
957 struct fw_xfer *xfer;
958 struct fw_pkt *fp;
959
960 fc->status = FWBUSPHYCONF;
961
962#if 0
963 DELAY(100000);
964#endif
965 xfer = fw_xfer_alloc(M_FWXFER);
966 xfer->send.len = 12;
967 xfer->send.off = 0;
968 xfer->fc = fc;
969 xfer->retry_req = fw_asybusy;
970 xfer->act.hand = fw_asy_callback_free;
971
972 xfer->send.buf = malloc(sizeof(u_int32_t),
973 M_FW, M_NOWAIT | M_ZERO);
974 fp = (struct fw_pkt *)xfer->send.buf;
975 fp->mode.ld[1] = 0;
976 if (root_node >= 0)
977 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23);
978 if (gap_count >= 0)
979 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16);
980 fp->mode.ld[2] = ~fp->mode.ld[1];
981/* XXX Dangerous, how to pass PHY packet to device driver */
982 fp->mode.common.tcode |= FWTCODE_PHY;
983
984 if (firewire_debug)
985 printf("send phy_config root_node=%d gap_count=%d\n",
986 root_node, gap_count);
987 fw_asyreq(fc, -1, xfer);
988}
989
990#if 0
991/*
992 * Dump self ID.
993 */
994static void
995fw_print_sid(u_int32_t sid)
996{
997 union fw_self_id *s;
998 s = (union fw_self_id *) &sid;
999 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1000 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1001 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1002 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1003 s->p0.power_class, s->p0.port0, s->p0.port1,
1004 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1005}
1006#endif
1007
1008/*
1009 * To receive self ID.
1010 */
1011void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off)
1012{
1013 u_int32_t *p, *sid = (u_int32_t *)(buf + off);
1014 union fw_self_id *self_id;
1015 u_int i, j, node, c_port = 0, i_branch = 0;
1016
1017 fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
1018 fc->status = FWBUSINIT;
1019 fc->max_node = fc->nodeid & 0x3f;
1020 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
1021 fc->status = FWBUSCYMELECT;
1022 fc->topology_map->crc_len = 2;
1023 fc->topology_map->generation ++;
1024 fc->topology_map->self_id_count = 0;
1025 fc->topology_map->node_count = 0;
1026 fc->speed_map->generation ++;
1027 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1028 self_id = &fc->topology_map->self_id[0];
1029 for(i = 0; i < fc->sid_cnt; i ++){
1030 if (sid[1] != ~sid[0]) {
1031 printf("fw_sidrcv: invalid self-id packet\n");
1032 sid += 2;
1033 continue;
1034 }
1035 *self_id = *((union fw_self_id *)sid);
1036 fc->topology_map->crc_len++;
1037 if(self_id->p0.sequel == 0){
1038 fc->topology_map->node_count ++;
1039 c_port = 0;
1040#if 0
1041 fw_print_sid(sid[0]);
1042#endif
1043 node = self_id->p0.phy_id;
1044 if(fc->max_node < node){
1045 fc->max_node = self_id->p0.phy_id;
1046 }
1047 /* XXX I'm not sure this is the right speed_map */
1048 fc->speed_map->speed[node][node]
1049 = self_id->p0.phy_speed;
1050 for (j = 0; j < node; j ++) {
1051 fc->speed_map->speed[j][node]
1052 = fc->speed_map->speed[node][j]
1053 = min(fc->speed_map->speed[j][j],
1054 self_id->p0.phy_speed);
1055 }
1056 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1057 (self_id->p0.link_active && self_id->p0.contender)) {
1058 fc->irm = self_id->p0.phy_id;
1059 }
1060 if(self_id->p0.port0 >= 0x2){
1061 c_port++;
1062 }
1063 if(self_id->p0.port1 >= 0x2){
1064 c_port++;
1065 }
1066 if(self_id->p0.port2 >= 0x2){
1067 c_port++;
1068 }
1069 }
1070 if(c_port > 2){
1071 i_branch += (c_port - 2);
1072 }
1073 sid += 2;
1074 self_id++;
1075 fc->topology_map->self_id_count ++;
1076 }
1077 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1078 /* CRC */
1079 fc->topology_map->crc = fw_crc16(
1080 (u_int32_t *)&fc->topology_map->generation,
1081 fc->topology_map->crc_len * 4);
1082 fc->speed_map->crc = fw_crc16(
1083 (u_int32_t *)&fc->speed_map->generation,
1084 fc->speed_map->crc_len * 4);
1085 /* byteswap and copy to CSR */
1086 p = (u_int32_t *)fc->topology_map;
1087 for (i = 0; i <= fc->topology_map->crc_len; i++)
1088 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1089 p = (u_int32_t *)fc->speed_map;
1090 CSRARC(fc, SPED_MAP) = htonl(*p++);
1091 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1092 /* don't byte-swap u_int8_t array */
1093 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1094
1095 fc->max_hop = fc->max_node - i_branch;
1096#if 1
1097 printf(", maxhop <= %d", fc->max_hop);
1098#endif
1099
1100 if(fc->irm == -1 ){
1101 printf(", Not found IRM capable node");
1102 }else{
1103 printf(", cable IRM = %d", fc->irm);
1104 if (fc->irm == fc->nodeid)
1105 printf(" (me)");
1106 }
1107 printf("\n");
1108
1109 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1110 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) {
1111 fc->status = FWBUSMGRDONE;
1112 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1113 } else {
1114 fc->status = FWBUSMGRELECT;
1115 callout_reset(&fc->bmr_callout, hz/8,
1116 (void *)fw_try_bmr, (void *)fc);
1117 }
1118 } else {
1119 fc->status = FWBUSMGRDONE;
1120#if 0
1121 device_printf(fc->bdev, "BMR = %x\n",
1122 CSRARC(fc, BUS_MGR_ID));
1123#endif
1124 }
1125 free(buf, M_FW);
1126 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){
1127 /* I am BMGR */
1128 fw_bmr(fc);
1129 }
1130 callout_reset(&fc->busprobe_callout, hz/4,
1131 (void *)fw_bus_probe, (void *)fc);
1132}
1133
1134/*
1135 * To probe devices on the IEEE1394 bus.
1136 */
1137static void
1138fw_bus_probe(struct firewire_comm *fc)
1139{
1140 int s;
1141 struct fw_device *fwdev, *next;
1142
1143 s = splfw();
1144 fc->status = FWBUSEXPLORE;
1145 fc->retry_count = 0;
1146
1147/*
1148 * Invalidate all devices, just after bus reset. Devices
1149 * to be removed has not been seen longer time.
1150 */
1151 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1152 next = STAILQ_NEXT(fwdev, link);
1153 if (fwdev->status != FWDEVINVAL) {
1154 fwdev->status = FWDEVINVAL;
1155 fwdev->rcnt = 0;
1156 } else if(fwdev->rcnt < FW_MAXDEVRCNT) {
1157 fwdev->rcnt ++;
1158 } else {
1159 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link);
1160 free(fwdev, M_FW);
1161 }
1162 }
1163 fc->ongonode = 0;
1164 fc->ongoaddr = CSRROMOFF;
1165 fc->ongodev = NULL;
1166 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1167 fw_bus_explore(fc);
1168 splx(s);
1169}
1170
1171/*
1172 * To collect device informations on the IEEE1394 bus.
1173 */
1174static void
1175fw_bus_explore(struct firewire_comm *fc )
1176{
1177 int err = 0;
1178 struct fw_device *fwdev, *pfwdev, *tfwdev;
1179 u_int32_t addr;
1180 struct fw_xfer *xfer;
1181 struct fw_pkt *fp;
1182
1183 if(fc->status != FWBUSEXPLORE)
1184 return;
1185
1186loop:
1187 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1188
1189 if(fc->ongonode > fc->max_node) goto done;
1190 if(fc->ongonode >= 0x3f) goto done;
1191
1192 /* check link */
1193 /* XXX we need to check phy_id first */
1194 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
1195 if (firewire_debug)
1196 printf("node%d: link down\n", fc->ongonode);
1197 fc->ongonode++;
1198 goto loop;
1199 }
1200
1201 if(fc->ongoaddr <= CSRROMOFF &&
1202 fc->ongoeui.hi == 0xffffffff &&
1203 fc->ongoeui.lo == 0xffffffff ){
1204 fc->ongoaddr = CSRROMOFF;
1205 addr = 0xf0000000 | fc->ongoaddr;
1206 }else if(fc->ongoeui.hi == 0xffffffff ){
1207 fc->ongoaddr = CSRROMOFF + 0xc;
1208 addr = 0xf0000000 | fc->ongoaddr;
1209 }else if(fc->ongoeui.lo == 0xffffffff ){
1210 fc->ongoaddr = CSRROMOFF + 0x10;
1211 addr = 0xf0000000 | fc->ongoaddr;
1212 }else if(fc->ongodev == NULL){
1213 STAILQ_FOREACH(fwdev, &fc->devices, link)
1214 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1215 break;
1216 if(fwdev != NULL){
1217 fwdev->dst = fc->ongonode;
1218 fwdev->status = FWDEVATTACHED;
1219 fc->ongonode++;
1220 fc->ongoaddr = CSRROMOFF;
1221 fc->ongodev = NULL;
1222 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1223 goto loop;
1224 }
1225 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT);
1226 if(fwdev == NULL)
1227 return;
1228 fwdev->fc = fc;
1229 fwdev->rommax = 0;
1230 fwdev->dst = fc->ongonode;
1231 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1232 fwdev->status = FWDEVINIT;
1233#if 0
1234 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4)
1235 >> ((3 - (fc->ongonode % 4)) * 8);
1236#else
1237 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1238#endif
1239
1240 pfwdev = NULL;
1241 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1242 if (tfwdev->eui.hi > fwdev->eui.hi ||
1243 (tfwdev->eui.hi == fwdev->eui.hi &&
1244 tfwdev->eui.lo > fwdev->eui.lo))
1245 break;
1246 pfwdev = tfwdev;
1247 }
1248 if (pfwdev == NULL)
1249 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1250 else
1251 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1252
1253 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1254 linkspeed[fwdev->speed],
1255 fc->ongoeui.hi, fc->ongoeui.lo);
1256
1257 fc->ongodev = fwdev;
1258 fc->ongoaddr = CSRROMOFF;
1259 addr = 0xf0000000 | fc->ongoaddr;
1260 }else{
1261 addr = 0xf0000000 | fc->ongoaddr;
1262 }
1263#if 0
1264 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1265 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1266 fw_bus_explore_callback);
1267 if(xfer == NULL) goto done;
1268#else
1269 xfer = fw_xfer_alloc(M_FWXFER);
1270 if(xfer == NULL){
1271 goto done;
1272 }
1273 xfer->send.len = 16;
1274 xfer->spd = 0;
1275 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1276 if(xfer->send.buf == NULL){
1277 fw_xfer_free( xfer);
1278 return;
1279 }
1280
1281 xfer->send.off = 0;
1282 fp = (struct fw_pkt *)xfer->send.buf;
1283 fp->mode.rreqq.dest_hi = htons(0xffff);
1284 fp->mode.rreqq.tlrt = 0;
1285 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1286 fp->mode.rreqq.pri = 0;
1287 fp->mode.rreqq.src = 0;
1288 xfer->dst = FWLOCALBUS | fc->ongonode;
1289 fp->mode.rreqq.dst = htons(xfer->dst);
1290 fp->mode.rreqq.dest_lo = htonl(addr);
1291 xfer->act.hand = fw_bus_explore_callback;
1292
1293 if (firewire_debug)
1294 printf("node%d: explore addr=0x%x\n",
1295 fc->ongonode, fc->ongoaddr);
1296 err = fw_asyreq(fc, -1, xfer);
1297 if(err){
1298 fw_xfer_free( xfer);
1299 return;
1300 }
1301#endif
1302 return;
1303done:
1304 /* fw_attach_devs */
1305 fc->status = FWBUSEXPDONE;
1306 if (firewire_debug)
1307 printf("bus_explore done\n");
1308 fw_attach_dev(fc);
1309 return;
1310
1311}
1312
1313/* Portable Async. request read quad */
1314struct fw_xfer *
1315asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt,
1316 u_int32_t addr_hi, u_int32_t addr_lo,
1317 void (*hand) __P((struct fw_xfer*)))
1318{
1319 struct fw_xfer *xfer;
1320 struct fw_pkt *fp;
1321 int err;
1322
1323 xfer = fw_xfer_alloc(M_FWXFER);
1324 if(xfer == NULL){
1325 return NULL;
1326 }
1327 xfer->send.len = 16;
1328 xfer->spd = spd; /* XXX:min(spd, fc->spd) */
1329 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1330 if(xfer->send.buf == NULL){
1331 fw_xfer_free( xfer);
1332 return NULL;
1333 }
1334
1335 xfer->send.off = 0;
1336 fp = (struct fw_pkt *)xfer->send.buf;
1337 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff);
1338 if(tl & FWP_TL_VALID){
1339 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1340 }else{
1341 fp->mode.rreqq.tlrt = 0;
1342 }
1343 fp->mode.rreqq.tlrt |= rt & 0x3;
1344 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1345 fp->mode.rreqq.pri = 0;
1346 fp->mode.rreqq.src = 0;
1347 xfer->dst = addr_hi >> 16;
1348 fp->mode.rreqq.dst = htons(xfer->dst);
1349 fp->mode.rreqq.dest_lo = htonl(addr_lo);
1350 xfer->act.hand = hand;
1351
1352 err = fw_asyreq(fc, -1, xfer);
1353 if(err){
1354 fw_xfer_free( xfer);
1355 return NULL;
1356 }
1357 return xfer;
1358}
1359
1360/*
1361 * Callback for the IEEE1394 bus information collection.
1362 */
1363static void
1364fw_bus_explore_callback(struct fw_xfer *xfer)
1365{
1366 struct firewire_comm *fc;
1367 struct fw_pkt *sfp,*rfp;
1368 struct csrhdr *chdr;
1369 struct csrdir *csrd;
1370 struct csrreg *csrreg;
1371 u_int32_t offset;
1372
1373
1374 if(xfer == NULL) {
1375 printf("xfer == NULL\n");
1376 return;
1377 }
1378 fc = xfer->fc;
1379
1380 if (firewire_debug)
1381 printf("node%d: callback addr=0x%x\n",
1382 fc->ongonode, fc->ongoaddr);
1383
1384 if(xfer->resp != 0){
1385 printf("node%d: resp=%d addr=0x%x\n",
1386 fc->ongonode, xfer->resp, fc->ongoaddr);
1387 fc->retry_count++;
1388 goto nextnode;
1389 }
1390
1391 if(xfer->send.buf == NULL){
1392 printf("node%d: send.buf=NULL addr=0x%x\n",
1393 fc->ongonode, fc->ongoaddr);
1394 fc->retry_count++;
1395 goto nextnode;
1396 }
1397 sfp = (struct fw_pkt *)xfer->send.buf;
1398
1399 if(xfer->recv.buf == NULL){
1400 printf("node%d: recv.buf=NULL addr=0x%x\n",
1401 fc->ongonode, fc->ongoaddr);
1402 fc->retry_count++;
1403 goto nextnode;
1404 }
1405 rfp = (struct fw_pkt *)xfer->recv.buf;
1406#if 0
1407 {
1408 u_int32_t *qld;
1409 int i;
1410 qld = (u_int32_t *)xfer->recv.buf;
1411 printf("len:%d\n", xfer->recv.len);
1412 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1413 printf("0x%08x ", ntohl(rfp->mode.ld[i/4]));
1414 if((i % 16) == 15) printf("\n");
1415 }
1416 if((i % 16) != 15) printf("\n");
1417 }
1418#endif
1419 if(fc->ongodev == NULL){
1420 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){
1421 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1422 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1423/* If CSR is minimal confinguration, more investgation is not needed. */
1424 if(chdr->info_len == 1){
1425 if (firewire_debug)
1426 printf("node%d: minimal config\n",
1427 fc->ongonode);
1428 goto nextnode;
1429 }else{
1430 fc->ongoaddr = CSRROMOFF + 0xc;
1431 }
1432 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){
1433 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1434 fc->ongoaddr = CSRROMOFF + 0x10;
1435 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){
1436 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1437 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1438 if (firewire_debug)
1439 printf("node%d: eui64 is zero.\n",
1440 fc->ongonode);
1441 goto nextnode;
1442 }
1443 fc->ongoaddr = CSRROMOFF;
1444 }
1445 }else{
1446 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1447 if(fc->ongoaddr > fc->ongodev->rommax){
1448 fc->ongodev->rommax = fc->ongoaddr;
1449 }
1450 csrd = SLIST_FIRST(&fc->ongocsr);
1451 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1452 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1453 offset = CSRROMOFF;
1454 }else{
1455 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1456 offset = csrd->off;
1457 }
1458 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1459 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1460 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1461 csrd = SLIST_FIRST(&fc->csrfree);
1462 if(csrd == NULL){
1463 goto nextnode;
1464 }else{
1465 csrd->ongoaddr = fc->ongoaddr;
1466 fc->ongoaddr += csrreg->val * 4;
1467 csrd->off = fc->ongoaddr;
1468 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1469 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1470 goto nextaddr;
1471 }
1472 }
1473 }
1474 fc->ongoaddr += 4;
1475 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1476 (fc->ongodev->rommax < 0x414)){
1477 if(fc->ongodev->rommax <= 0x414){
1478 csrd = SLIST_FIRST(&fc->csrfree);
1479 if(csrd == NULL) goto nextnode;
1480 csrd->off = fc->ongoaddr;
1481 csrd->ongoaddr = fc->ongoaddr;
1482 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1483 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1484 }
1485 goto nextaddr;
1486 }
1487
1488 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1489 if(csrd == NULL){
1490 goto nextnode;
1491 };
1492 fc->ongoaddr = csrd->ongoaddr + 4;
1493 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1494 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1495 csrd = SLIST_FIRST(&fc->ongocsr);
1496 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1497 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1498 offset = CSRROMOFF;
1499 }else{
1500 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1501 offset = csrd->off;
1502 }
1503 }
1504 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1505 goto nextnode;
1506 }
1507 }
1508nextaddr:
1509 fw_xfer_free( xfer);
1510 fw_bus_explore(fc);
1511 return;
1512nextnode:
1513 fw_xfer_free( xfer);
1514 fc->ongonode++;
1515/* housekeeping work space */
1516 fc->ongoaddr = CSRROMOFF;
1517 fc->ongodev = NULL;
1518 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1519 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1520 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1521 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1522 }
1523 fw_bus_explore(fc);
1524 return;
1525}
1526
1527/*
1528 * To obtain CSR register values.
1529 */
1530u_int32_t
1531getcsrdata(struct fw_device *fwdev, u_int8_t key)
1532{
1533 int i;
1534 struct csrhdr *chdr;
1535 struct csrreg *creg;
1536 chdr = (struct csrhdr *)&fwdev->csrrom[0];
1537 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){
1538 creg = (struct csrreg *)&fwdev->csrrom[i/4];
1539 if(creg->key == key){
1540 return (u_int32_t)creg->val;
1541 }
1542 }
1543 return 0;
1544}
1545
1546/*
1547 * To attach sub-devices layer onto IEEE1394 bus.
1548 */
1549static void
1550fw_attach_dev(struct firewire_comm *fc)
1551{
1552 struct fw_device *fwdev;
1553 struct fw_xfer *xfer;
1554 int i, err;
1555 device_t *devlistp;
1556 int devcnt;
1557 struct firewire_dev_comm *fdc;
1558 u_int32_t spec, ver;
1559
1560 STAILQ_FOREACH(fwdev, &fc->devices, link) {
1561 if(fwdev->status == FWDEVINIT){
1562 spec = getcsrdata(fwdev, CSRKEY_SPEC);
1563 if(spec == 0)
1564 continue;
1565 ver = getcsrdata(fwdev, CSRKEY_VER);
1566 if(ver == 0)
1567 continue;
1568 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf;
1569
1570 device_printf(fc->bdev, "Device ");
1571 switch(spec){
1572 case CSRVAL_ANSIT10:
1573 switch(ver){
1574 case CSRVAL_T10SBP2:
1575 printf("SBP-II");
1576 break;
1577 default:
1578 break;
1579 }
1580 break;
1581 case CSRVAL_1394TA:
1582 switch(ver){
1583 case CSR_PROTAVC:
1584 printf("AV/C");
1585 break;
1586 case CSR_PROTCAL:
1587 printf("CAL");
1588 break;
1589 case CSR_PROTEHS:
1590 printf("EHS");
1591 break;
1592 case CSR_PROTHAVI:
1593 printf("HAVi");
1594 break;
1595 case CSR_PROTCAM104:
1596 printf("1394 Cam 1.04");
1597 break;
1598 case CSR_PROTCAM120:
1599 printf("1394 Cam 1.20");
1600 break;
1601 case CSR_PROTCAM130:
1602 printf("1394 Cam 1.30");
1603 break;
1604 case CSR_PROTDPP:
1605 printf("1394 Direct print");
1606 break;
1607 case CSR_PROTIICP:
1608 printf("Industrial & Instrument");
1609 break;
1610 default:
1611 printf("unknown 1394TA");
1612 break;
1613 }
1614 break;
1615 default:
1616 printf("unknown spec");
1617 break;
1618 }
1619 fwdev->status = FWDEVATTACHED;
1620 printf("\n");
1621 }
1622 }
1623 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1624 if( err != 0 )
1625 return;
1626 for( i = 0 ; i < devcnt ; i++){
1627 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1628 fdc = device_get_softc(devlistp[i]);
1629 if (fdc->post_explore != NULL)
1630 fdc->post_explore(fdc);
1631 }
1632 }
1633 free(devlistp, M_TEMP);
1634
1635 /* call pending handlers */
1636 i = 0;
1637 while ((xfer = STAILQ_FIRST(&fc->pending))) {
1638 STAILQ_REMOVE_HEAD(&fc->pending, link);
1639 i++;
1640 if (xfer->act.hand)
1641 xfer->act.hand(xfer);
1642 }
1643 if (i > 0)
1644 printf("fw_attach_dev: %d pending handlers called\n", i);
1645 if (fc->retry_count > 0) {
1646 printf("probe failed for %d node\n", fc->retry_count);
1647#if 0
1648 callout_reset(&fc->retry_probe_callout, hz*2,
1649 (void *)fc->ibr, (void *)fc);
1650#endif
1651 }
1652 return;
1653}
1654
1655/*
1656 * To allocate uniq transaction label.
1657 */
1658static int
1659fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1660{
1661 u_int i;
1662 struct tlabel *tl, *tmptl;
1663 int s;
1664 static u_int32_t label = 0;
1665
1666 s = splfw();
1667 for( i = 0 ; i < 0x40 ; i ++){
1668 label = (label + 1) & 0x3f;
1669 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1670 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1671 if(tmptl->xfer->dst == xfer->dst) break;
1672 }
1673 if(tmptl == NULL) {
1674 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT);
1675 if (tl == NULL) {
1676 splx(s);
1677 return (-1);
1678 }
1679 tl->xfer = xfer;
1680 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1681 splx(s);
1682 if (firewire_debug > 1)
1683 printf("fw_get_tlabel: dst=%d tl=%d\n",
1684 xfer->dst, label);
1685 return(label);
1686 }
1687 }
1688 splx(s);
1689
1690 printf("fw_get_tlabel: no free tlabel\n");
1691 return(-1);
1692}
1693
1694/*
1695 * Generic packet receving process.
1696 */
1697void
1698fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd)
1699{
1700 struct fw_pkt *fp, *resfp;
1701 struct fw_xfer *xfer;
1702 struct fw_bind *bind;
1703 struct firewire_softc *sc;
1704 int s;
1705#if 0
1706 {
1707 u_int32_t *qld;
1708 int i;
1709 qld = (u_int32_t *)buf;
1710 printf("spd %d len:%d\n", spd, len);
1711 for( i = 0 ; i <= len && i < 32; i+= 4){
1712 printf("0x%08x ", ntohl(qld[i/4]));
1713 if((i % 16) == 15) printf("\n");
1714 }
1715 if((i % 16) != 15) printf("\n");
1716 }
1717#endif
1718 fp = (struct fw_pkt *)(buf + off);
1719 switch(fp->mode.common.tcode){
1720 case FWTCODE_WRES:
1721 case FWTCODE_RRESQ:
1722 case FWTCODE_RRESB:
1723 case FWTCODE_LRES:
1724 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
1725 fp->mode.hdr.tlrt >> 2);
1726 if(xfer == NULL) {
1727 printf("fw_rcv: unknown response "
1728 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n",
1729 fp->mode.common.tcode,
1730 ntohs(fp->mode.hdr.src),
1731 fp->mode.hdr.tlrt >> 2,
1732 fp->mode.hdr.tlrt & 3,
1733 fp->mode.rresq.data);
1734#if 1
1735 printf("try ad-hoc work around!!\n");
1736 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
1737 (fp->mode.hdr.tlrt >> 2)^3);
1738 if (xfer == NULL) {
1739 printf("no use...\n");
1740 goto err;
1741 }
1742#else
1743 goto err;
1744#endif
1745 }
1746 switch(xfer->act_type){
1747 case FWACT_XFER:
1748 if((xfer->sub >= 0) &&
1749 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){
1750 xfer->resp = EINVAL;
1751 fw_xfer_done(xfer);
1752 goto err;
1753 }
1754 xfer->recv.len = len;
1755 xfer->recv.off = off;
1756 xfer->recv.buf = buf;
1757 xfer->resp = 0;
1758 fw_xfer_done(xfer);
1759 return;
1760 break;
1761 case FWACT_CH:
1762 default:
1763 goto err;
1764 break;
1765 }
1766 break;
1767 case FWTCODE_WREQQ:
1768 case FWTCODE_WREQB:
1769 case FWTCODE_RREQQ:
1770 case FWTCODE_RREQB:
1771 case FWTCODE_LREQ:
1772 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi),
1773 ntohl(fp->mode.rreqq.dest_lo));
1774 if(bind == NULL){
1775#if __FreeBSD_version >= 500000
1776 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n",
1777#else
1778 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n",
1779#endif
1780 ntohs(fp->mode.rreqq.dest_hi),
1781 ntohl(fp->mode.rreqq.dest_lo),
1782 fp->mode.common.tcode);
1783 if (fc->status == FWBUSRESET) {
1784 printf("fw_rcv: cannot respond(bus reset)!\n");
1785 goto err;
1786 }
1787 xfer = fw_xfer_alloc(M_FWXFER);
1788 if(xfer == NULL){
1789 return;
1790 }
1791 xfer->spd = spd;
1792 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1793 resfp = (struct fw_pkt *)xfer->send.buf;
1794 switch(fp->mode.common.tcode){
1795 case FWTCODE_WREQQ:
1796 case FWTCODE_WREQB:
1797 resfp->mode.hdr.tcode = FWTCODE_WRES;
1798 xfer->send.len = 12;
1799 break;
1800 case FWTCODE_RREQQ:
1801 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1802 xfer->send.len = 16;
1803 break;
1804 case FWTCODE_RREQB:
1805 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1806 xfer->send.len = 16;
1807 break;
1808 case FWTCODE_LREQ:
1809 resfp->mode.hdr.tcode = FWTCODE_LRES;
1810 xfer->send.len = 16;
1811 break;
1812 }
1813 resfp->mode.hdr.dst = fp->mode.hdr.src;
1814 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1815 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1816 resfp->mode.rresb.rtcode = 7;
1817 resfp->mode.rresb.extcode = 0;
1818 resfp->mode.rresb.len = 0;
1819/*
1820 xfer->act.hand = fw_asy_callback;
1821*/
1822 xfer->act.hand = fw_xfer_free;
1823 if(fw_asyreq(fc, -1, xfer)){
1824 fw_xfer_free( xfer);
1825 return;
1826 }
1827 goto err;
1828 }
1829 switch(bind->xfer->act_type){
1830 case FWACT_XFER:
1831 xfer = fw_xfer_alloc(M_FWXFER);
1832 if(xfer == NULL) goto err;
1833 xfer->fc = bind->xfer->fc;
1834 xfer->sc = bind->xfer->sc;
1835 xfer->recv.buf = buf;
1836 xfer->recv.len = len;
1837 xfer->recv.off = off;
1838 xfer->spd = spd;
1839 xfer->act.hand = bind->xfer->act.hand;
1840 if (fc->status != FWBUSRESET)
1841 xfer->act.hand(xfer);
1842 else
1843 STAILQ_INSERT_TAIL(&fc->pending, xfer, link);
1844 return;
1845 break;
1846 case FWACT_CH:
1847 if(fc->ir[bind->xfer->sub]->queued >=
1848 fc->ir[bind->xfer->sub]->maxq){
1849 device_printf(fc->bdev,
1850 "Discard a packet %x %d\n",
1851 bind->xfer->sub,
1852 fc->ir[bind->xfer->sub]->queued);
1853 goto err;
1854 }
1855 xfer = fw_xfer_alloc(M_FWXFER);
1856 if(xfer == NULL) goto err;
1857 xfer->recv.buf = buf;
1858 xfer->recv.len = len;
1859 xfer->recv.off = off;
1860 xfer->spd = spd;
1861 s = splfw();
1862 fc->ir[bind->xfer->sub]->queued++;
1863 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link);
1864 splx(s);
1865
1866 wakeup((caddr_t)fc->ir[bind->xfer->sub]);
1867
1868 return;
1869 break;
1870 default:
1871 goto err;
1872 break;
1873 }
1874 break;
1875 case FWTCODE_STREAM:
1876 {
1877 struct fw_xferq *xferq;
1878
1879 xferq = fc->ir[sub];
1880#if 0
1881 printf("stream rcv dma %d len %d off %d spd %d\n",
1882 sub, len, off, spd);
1883#endif
1884 if(xferq->queued >= xferq->maxq) {
1885 printf("receive queue is full\n");
1886 goto err;
1887 }
1888 xfer = fw_xfer_alloc(M_FWXFER);
1889 if(xfer == NULL) goto err;
1890 xfer->recv.buf = buf;
1891 xfer->recv.len = len;
1892 xfer->recv.off = off;
1893 xfer->spd = spd;
1894 s = splfw();
1895 xferq->queued++;
1896 STAILQ_INSERT_TAIL(&xferq->q, xfer, link);
1897 splx(s);
1898 sc = device_get_softc(fc->bdev);
1899#if __FreeBSD_version >= 500000
1900 if (SEL_WAITING(&xferq->rsel))
1901#else
1902 if (&xferq->rsel.si_pid != 0)
1903#endif
1904 selwakeup(&xferq->rsel);
1905 if (xferq->flag & FWXFERQ_WAKEUP) {
1906 xferq->flag &= ~FWXFERQ_WAKEUP;
1907 wakeup((caddr_t)xferq);
1908 }
1909 if (xferq->flag & FWXFERQ_HANDLER) {
1910 xferq->hand(xferq);
1911 }
1912 return;
1913 break;
1914 }
1915 default:
1916 printf("fw_rcv: unknow tcode\n");
1917 break;
1918 }
1919err:
1920 free(buf, M_FW);
1921}
1922
1923/*
1924 * Post process for Bus Manager election process.
1925 */
1926static void
1927fw_try_bmr_callback(struct fw_xfer *xfer)
1928{
1929 struct fw_pkt *rfp;
1930 struct firewire_comm *fc;
1931 int bmr;
1932
1933 if (xfer == NULL)
1934 return;
1935 fc = xfer->fc;
1936 if (xfer->resp != 0)
1937 goto error;
1938 if (xfer->send.buf == NULL)
1939 goto error;
1940 if (xfer->recv.buf == NULL)
1941 goto error;
1942 rfp = (struct fw_pkt *)xfer->recv.buf;
1943 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE)
1944 goto error;
1945
1946 bmr = ntohl(rfp->mode.lres.payload[0]);
1947 if (bmr == 0x3f)
1948 bmr = fc->nodeid;
1949
1950 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
1951 device_printf(fc->bdev, "new bus manager %d ",
1952 CSRARC(fc, BUS_MGR_ID));
1953 if(bmr == fc->nodeid){
1954 printf("(me)\n");
1955 fw_bmr(fc);
1956 }else{
1957 printf("\n");
1958 }
1959error:
1960 fw_xfer_free(xfer);
1961}
1962
1963/*
1964 * To candidate Bus Manager election process.
1965 */
1966static void
1967fw_try_bmr(void *arg)
1968{
1969 struct fw_xfer *xfer;
1970 struct firewire_comm *fc = (struct firewire_comm *)arg;
1971 struct fw_pkt *fp;
1972 int err = 0;
1973
1974 xfer = fw_xfer_alloc(M_FWXFER);
1975 if(xfer == NULL){
1976 return;
1977 }
1978 xfer->send.len = 24;
1979 xfer->spd = 0;
1980 xfer->send.buf = malloc(24, M_FW, M_NOWAIT);
1981 if(xfer->send.buf == NULL){
1982 fw_xfer_free( xfer);
1983 return;
1984 }
1985
1986 fc->status = FWBUSMGRELECT;
1987
1988 xfer->send.off = 0;
1989 fp = (struct fw_pkt *)xfer->send.buf;
1990 fp->mode.lreq.dest_hi = htons(0xffff);
1991 fp->mode.lreq.tlrt = 0;
1992 fp->mode.lreq.tcode = FWTCODE_LREQ;
1993 fp->mode.lreq.pri = 0;
1994 fp->mode.lreq.src = 0;
1995 fp->mode.lreq.len = htons(8);
1996 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP);
1997 xfer->dst = FWLOCALBUS | fc->irm;
1998 fp->mode.lreq.dst = htons(xfer->dst);
1999 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID);
2000 fp->mode.lreq.payload[0] = htonl(0x3f);
2001 fp->mode.lreq.payload[1] = htonl(fc->nodeid);
2002 xfer->act_type = FWACT_XFER;
2003 xfer->act.hand = fw_try_bmr_callback;
2004
2005 err = fw_asyreq(fc, -1, xfer);
2006 if(err){
2007 fw_xfer_free( xfer);
2008 return;
2009 }
2010 return;
2011}
2012
2013#ifdef FW_VMACCESS
2014/*
2015 * Software implementation for physical memory block access.
2016 * XXX:Too slow, usef for debug purpose only.
2017 */
2018static void
2019fw_vmaccess(struct fw_xfer *xfer){
2020 struct fw_pkt *rfp, *sfp = NULL;
2021 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off);
2022
2023 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n",
2024 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2025 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2026 if(xfer->resp != 0){
2027 fw_xfer_free( xfer);
2028 return;
2029 }
2030 if(xfer->recv.buf == NULL){
2031 fw_xfer_free( xfer);
2032 return;
2033 }
2034 rfp = (struct fw_pkt *)xfer->recv.buf;
2035 switch(rfp->mode.hdr.tcode){
2036 /* XXX need fix for 64bit arch */
2037 case FWTCODE_WREQB:
2038 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2039 xfer->send.len = 12;
2040 sfp = (struct fw_pkt *)xfer->send.buf;
2041 bcopy(rfp->mode.wreqb.payload,
2042 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2043 sfp->mode.wres.tcode = FWTCODE_WRES;
2044 sfp->mode.wres.rtcode = 0;
2045 break;
2046 case FWTCODE_WREQQ:
2047 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2048 xfer->send.len = 12;
2049 sfp->mode.wres.tcode = FWTCODE_WRES;
2050 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2051 sfp->mode.wres.rtcode = 0;
2052 break;
2053 case FWTCODE_RREQB:
2054 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2055 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2056 sfp = (struct fw_pkt *)xfer->send.buf;
2057 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2058 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
2059 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2060 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2061 sfp->mode.rresb.rtcode = 0;
2062 sfp->mode.rresb.extcode = 0;
2063 break;
2064 case FWTCODE_RREQQ:
2065 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2066 xfer->send.len = 16;
2067 sfp = (struct fw_pkt *)xfer->send.buf;
2068 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2069 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2070 sfp->mode.rresb.rtcode = 0;
2071 break;
2072 default:
2073 fw_xfer_free( xfer);
2074 return;
2075 }
2076 xfer->send.off = 0;
2077 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2078 xfer->dst = ntohs(rfp->mode.hdr.src);
2079 xfer->act.hand = fw_xfer_free;
2080 xfer->retry_req = fw_asybusy;
2081
2082 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2083 sfp->mode.hdr.pri = 0;
2084
2085 fw_asyreq(xfer->fc, -1, xfer);
2086/**/
2087 return;
2088}
2089#endif
2090
2091/*
2092 * CRC16 check-sum for IEEE1394 register blocks.
2093 */
2094u_int16_t
2095fw_crc16(u_int32_t *ptr, u_int32_t len){
2096 u_int32_t i, sum, crc = 0;
2097 int shift;
2098 len = (len + 3) & ~3;
2099 for(i = 0 ; i < len ; i+= 4){
2100 for( shift = 28 ; shift >= 0 ; shift -= 4){
2101 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2102 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2103 }
2104 crc &= 0xffff;
2105 }
2106 return((u_int16_t) crc);
2107}
2108
2109static int
2110fw_bmr(struct firewire_comm *fc)
2111{
2112 struct fw_device fwdev;
2113 int cmstr;
2114
2115 /* XXX Assume that the current root node is cycle master capable */
2116 cmstr = fc->max_node;
2117 /* If I am the bus manager, optimize gapcount */
2118 if(fc->max_hop <= MAX_GAPHOP ){
2119 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1,
2120 gap_cnt[fc->max_hop]);
2121 }
2122 /* If we are the cycle master, nothing to do */
2123 if (cmstr == fc->nodeid)
2124 return 0;
2125 /* Bus probe has not finished, make dummy fwdev for cmstr */
2126 bzero(&fwdev, sizeof(fwdev));
2127 fwdev.fc = fc;
2128 fwdev.dst = cmstr;
2129 fwdev.speed = 0;
2130 fwdev.maxrec = 8; /* 512 */
2131 fwdev.status = FWDEVINIT;
2132 /* Set cmstr bit on the cycle master */
2133 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2134 0xffff, 0xf0000000 | STATE_SET, 1 << 16,
2135 fw_asy_callback_free);
2136
2137 return 0;
2138}
2139
2140DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0);
2141MODULE_VERSION(firewire, 1);