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 110891 2003-02-15 00:54:10Z 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;
339
340 split_timeout.tv_sec = 6;
341 split_timeout.tv_usec = 0;
342
343 microtime(&tv);
344 timevalsub(&tv, &split_timeout);
345
346 for (i = 0; i < 0x40; i ++) {
347 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
348 xfer = tl->xfer;
349 if (timevalcmp(&xfer->tv, &tv, >))
350 /* the rests are newer than this */
351 break;
352 device_printf(fc->bdev,
353 "split transaction timeout dst=0x%x tl=0x%x\n",
354 xfer->dst, i);
355 xfer->resp = ETIMEDOUT;
356 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
357 switch (xfer->act_type) {
358 case FWACT_XFER:
359 fw_xfer_done(xfer);
360 break;
361 default:
362 /* ??? */
363 fw_xfer_free(xfer);
364 break;
365 }
366 }
367 }
368}
369
370static void
371firewire_watchdog(void *arg)
372{
373 struct firewire_comm *fc;
374
375 fc = (struct firewire_comm *)arg;
376 firewire_xfer_timeout(fc);
377 fc->timeout(fc);
378 callout_reset(&fc->timeout_callout, hz,
379 (void *)firewire_watchdog, (void *)fc);
380}
381
382/*
383 * The attach routine.
384 */
385static int
386firewire_attach( device_t dev )
387{
388 int i, unitmask, mn;
389 struct firewire_softc *sc = device_get_softc(dev);
390 device_t pa = device_get_parent(dev);
391 struct firewire_comm *fc;
392 dev_t d;
393
394 fc = (struct firewire_comm *)device_get_softc(pa);
395 sc->fc = fc;
396
397 unitmask = UNIT2MIN(device_get_unit(dev));
398
399 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
400 for ( i = 0 ; i < fc->nisodma ; i++ ){
401 mn = unitmask | i;
402 /* XXX device name should be improved */
403 d = make_dev(&firewire_cdevsw, unit2minor(mn),
404 UID_ROOT, GID_OPERATOR, 0660,
405 "fw%x", mn);
406#if __FreeBSD_version >= 500000
407 if (i == 0)
408 sc->dev = d;
409 else
410 dev_depends(sc->dev, d);
411#else
412 sc->dev[i] = d;
413#endif
414 }
415 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG),
416 UID_ROOT, GID_OPERATOR, 0660,
417 "fwmem%d", device_get_unit(dev));
418#if __FreeBSD_version >= 500000
419 dev_depends(sc->dev, d);
420#else
421 sc->dev[i] = d;
422#endif
423#if __FreeBSD_version >= 500000
424#define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */)
425#else
426#define CALLOUT_INIT(x) callout_init(x)
427#endif
428 CALLOUT_INIT(&sc->fc->timeout_callout);
429 CALLOUT_INIT(&sc->fc->bmr_callout);
430 CALLOUT_INIT(&sc->fc->retry_probe_callout);
431 CALLOUT_INIT(&sc->fc->busprobe_callout);
432
433 callout_reset(&sc->fc->timeout_callout, hz,
434 (void *)firewire_watchdog, (void *)sc->fc);
435
436 /* Locate our children */
437 bus_generic_probe(dev);
438
439 /* launch attachement of the added children */
440 bus_generic_attach(dev);
441
442#if 1
443 /* bus_reset */
444 fc->ibr(fc);
445#endif
446
447 return 0;
448}
449
450/*
451 * Attach it as child.
452 */
453static device_t
454firewire_add_child(device_t dev, int order, const char *name, int unit)
455{
456 device_t child;
457 struct firewire_softc *sc;
458
459 sc = (struct firewire_softc *)device_get_softc(dev);
460 child = device_add_child(dev, name, unit);
461 if (child) {
462 device_set_ivars(child, sc->fc);
463 device_probe_and_attach(child);
464 }
465
466 return child;
467}
468
469/*
470 * Dettach it.
471 */
472static int
473firewire_detach( device_t dev )
474{
475 struct firewire_softc *sc;
476
477 sc = (struct firewire_softc *)device_get_softc(dev);
478
479#if __FreeBSD_version >= 500000
480 destroy_dev(sc->dev);
481#else
482 {
483 int j;
484 for (j = 0 ; j < sc->fc->nisodma + 1; j++)
485 destroy_dev(sc->dev[j]);
486 }
487#endif
488 /* XXX xfree_free and untimeout on all xfers */
489 callout_stop(&sc->fc->timeout_callout);
490 callout_stop(&sc->fc->bmr_callout);
491 callout_stop(&sc->fc->retry_probe_callout);
492 callout_stop(&sc->fc->busprobe_callout);
493 free(sc->fc->topology_map, M_FW);
494 free(sc->fc->speed_map, M_FW);
495 bus_generic_detach(dev);
496 return(0);
497}
498#if 0
499static int
500firewire_shutdown( device_t dev )
501{
502 return 0;
503}
504#endif
505
506
507static void
508fw_xferq_drain(struct fw_xferq *xferq)
509{
510 struct fw_xfer *xfer;
511
512 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
513 STAILQ_REMOVE_HEAD(&xferq->q, link);
514 xfer->resp = EAGAIN;
515 switch (xfer->act_type) {
516 case FWACT_XFER:
517 fw_xfer_done(xfer);
518 break;
519 default:
520 /* ??? */
521 fw_xfer_free(xfer);
522 break;
523 }
524 }
525}
526
527void
528fw_drain_txq(struct firewire_comm *fc)
529{
530 int i;
531
532 fw_xferq_drain(fc->atq);
533 fw_xferq_drain(fc->ats);
534 for(i = 0; i < fc->nisodma; i++)
535 fw_xferq_drain(fc->it[i]);
536}
537
538/*
539 * Called after bus reset.
540 */
541void
542fw_busreset(struct firewire_comm *fc)
543{
544 int i;
545
546 switch(fc->status){
547 case FWBUSMGRELECT:
548 callout_stop(&fc->bmr_callout);
549 break;
550 default:
551 break;
552 }
553 fc->status = FWBUSRESET;
554 CSRARC(fc, STATE_CLEAR)
555 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
556 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
557 CSRARC(fc, NODE_IDS) = 0x3f;
558
559 CSRARC(fc, TOPO_MAP + 8) = 0;
560 fc->irm = -1;
561
562 fc->max_node = -1;
563
564 for(i = 2; i < 0x100/4 - 2 ; i++){
565 CSRARC(fc, SPED_MAP + i * 4) = 0;
566 }
567 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
568 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
569 CSRARC(fc, RESET_START) = 0;
570 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
571 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
572 CSRARC(fc, CYCLE_TIME) = 0x0;
573 CSRARC(fc, BUS_TIME) = 0x0;
574 CSRARC(fc, BUS_MGR_ID) = 0x3f;
575 CSRARC(fc, BANDWIDTH_AV) = 4915;
576 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
577 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
578 CSRARC(fc, IP_CHANNELS) = (1 << 31);
579
580 CSRARC(fc, CONF_ROM) = 0x04 << 24;
581 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
582 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
583 1 << 28 | 0xff << 16 | 0x09 << 8;
584 CSRARC(fc, CONF_ROM + 0xc) = 0;
585
586/* DV depend CSRs see blue book */
587 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
588 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
589
590 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
591 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
592}
593
594/* Call once after reboot */
595void fw_init(struct firewire_comm *fc)
596{
597 int i;
598 struct csrdir *csrd;
599#ifdef FW_VMACCESS
600 struct fw_xfer *xfer;
601 struct fw_bind *fwb;
602#endif
603
604 fc->max_asyretry = FW_MAXASYRTY;
605
606 fc->arq->queued = 0;
607 fc->ars->queued = 0;
608 fc->atq->queued = 0;
609 fc->ats->queued = 0;
610
611 fc->arq->psize = PAGE_SIZE;
612 fc->ars->psize = PAGE_SIZE;
613 fc->atq->psize = 0;
614 fc->ats->psize = 0;
615
616
617 fc->arq->buf = NULL;
618 fc->ars->buf = NULL;
619 fc->atq->buf = NULL;
620 fc->ats->buf = NULL;
621
622 fc->arq->flag = FWXFERQ_PACKET;
623 fc->ars->flag = FWXFERQ_PACKET;
624 fc->atq->flag = FWXFERQ_PACKET;
625 fc->ats->flag = FWXFERQ_PACKET;
626
627 STAILQ_INIT(&fc->atq->q);
628 STAILQ_INIT(&fc->ats->q);
629
630 for( i = 0 ; i < fc->nisodma ; i ++ ){
631 fc->it[i]->queued = 0;
632 fc->ir[i]->queued = 0;
633
634 fc->it[i]->start = NULL;
635 fc->ir[i]->start = NULL;
636
637 fc->it[i]->buf = NULL;
638 fc->ir[i]->buf = NULL;
639
640 fc->it[i]->flag = FWXFERQ_STREAM;
641 fc->ir[i]->flag = FWXFERQ_STREAM;
642
643 STAILQ_INIT(&fc->it[i]->q);
644 STAILQ_INIT(&fc->ir[i]->q);
645
646 STAILQ_INIT(&fc->it[i]->binds);
647 STAILQ_INIT(&fc->ir[i]->binds);
648 }
649
650 fc->arq->maxq = FWMAXQUEUE;
651 fc->ars->maxq = FWMAXQUEUE;
652 fc->atq->maxq = FWMAXQUEUE;
653 fc->ats->maxq = FWMAXQUEUE;
654
655 for( i = 0 ; i < fc->nisodma ; i++){
656 fc->ir[i]->maxq = FWMAXQUEUE;
657 fc->it[i]->maxq = FWMAXQUEUE;
658 }
659/* Initialize csr registers */
660 fc->topology_map = (struct fw_topology_map *)malloc(
661 sizeof(struct fw_topology_map),
662 M_FW, M_NOWAIT | M_ZERO);
663 fc->speed_map = (struct fw_speed_map *)malloc(
664 sizeof(struct fw_speed_map),
665 M_FW, M_NOWAIT | M_ZERO);
666 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
667 CSRARC(fc, TOPO_MAP + 4) = 1;
668 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
669 CSRARC(fc, SPED_MAP + 4) = 1;
670
671 STAILQ_INIT(&fc->devices);
672 STAILQ_INIT(&fc->pending);
673
674/* Initialize csr ROM work space */
675 SLIST_INIT(&fc->ongocsr);
676 SLIST_INIT(&fc->csrfree);
677 for( i = 0 ; i < FWMAXCSRDIR ; i++){
678 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT);
679 if(csrd == NULL) break;
680 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
681 }
682
683/* Initialize Async handlers */
684 STAILQ_INIT(&fc->binds);
685 for( i = 0 ; i < 0x40 ; i++){
686 STAILQ_INIT(&fc->tlabels[i]);
687 }
688
689/* DV depend CSRs see blue book */
690#if 0
691 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
692 CSRARC(fc, oPCR) = 0x8000007a;
693 for(i = 4 ; i < 0x7c/4 ; i+=4){
694 CSRARC(fc, i + oPCR) = 0x8000007a;
695 }
696
697 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
698 CSRARC(fc, iPCR) = 0x803f0000;
699 for(i = 4 ; i < 0x7c/4 ; i+=4){
700 CSRARC(fc, i + iPCR) = 0x0;
701 }
702#endif
703
704
705#ifdef FW_VMACCESS
706 xfer = fw_xfer_alloc();
707 if(xfer == NULL) return;
708
709 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
710 if(fwb == NULL){
711 fw_xfer_free(xfer);
712 }
713 xfer->act.hand = fw_vmaccess;
714 xfer->act_type = FWACT_XFER;
715 xfer->fc = fc;
716 xfer->sc = NULL;
717
718 fwb->start_hi = 0x2;
719 fwb->start_lo = 0;
720 fwb->addrlen = 0xffffffff;
721 fwb->xfer = xfer;
722 fw_bindadd(fc, fwb);
723#endif
724}
725
726/*
727 * To lookup binded process from IEEE1394 address.
728 */
729struct fw_bind *
730fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo)
731{
732 struct fw_bind *tfw;
733 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ;
734 tfw = STAILQ_NEXT(tfw, fclist)){
735 if(tfw->xfer->act_type != FWACT_NULL &&
736 tfw->start_hi == dest_hi &&
737 tfw->start_lo <= dest_lo &&
738 (tfw->start_lo + tfw->addrlen) > dest_lo){
739 return(tfw);
740 }
741 }
742 return(NULL);
743}
744
745/*
746 * To bind IEEE1394 address block to process.
747 */
748int
749fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
750{
751 struct fw_bind *tfw, *tfw2 = NULL;
752 int err = 0;
753 tfw = STAILQ_FIRST(&fc->binds);
754 if(tfw == NULL){
755 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
756 goto out;
757 }
758 if((tfw->start_hi > fwb->start_hi) ||
759 (tfw->start_hi == fwb->start_hi &&
760 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){
761 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
762 goto out;
763 }
764 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){
765 if((tfw->start_hi < fwb->start_hi) ||
766 (tfw->start_hi == fwb->start_hi &&
767 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){
768 tfw2 = STAILQ_NEXT(tfw, fclist);
769 if(tfw2 == NULL)
770 break;
771 if((tfw2->start_hi > fwb->start_hi) ||
772 (tfw2->start_hi == fwb->start_hi &&
773 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){
774 break;
775 }else{
776 err = EBUSY;
777 goto out;
778 }
779 }
780 }
781 if(tfw != NULL){
782 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist);
783 }else{
784 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist);
785 }
786out:
787 if(!err && fwb->xfer->act_type == FWACT_CH){
788 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist);
789 }
790 return err;
791}
792
793/*
794 * To free IEEE1394 address block.
795 */
796int
797fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
798{
799 int s;
800
801 s = splfw();
802 /* shall we check the existance? */
803 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
804 splx(s);
805 if (fwb->xfer)
806 fw_xfer_free(fwb->xfer);
807
808 return 0;
809}
810
811/*
812 * To free transaction label.
813 */
814static void
815fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
816{
817 struct tlabel *tl;
818 int s = splfw();
819
820 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
821 tl = STAILQ_NEXT(tl, link)){
822 if(tl->xfer == xfer){
823 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
824 free(tl, M_FW);
825 splx(s);
826 return;
827 }
828 }
829 splx(s);
830 return;
831}
832
833/*
834 * To obtain XFER structure by transaction label.
835 */
836static struct fw_xfer *
837fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
838{
839 struct fw_xfer *xfer;
840 struct tlabel *tl;
841 int s = splfw();
842
843 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
844 tl = STAILQ_NEXT(tl, link)){
845 if(tl->xfer->dst == node){
846 xfer = tl->xfer;
847 splx(s);
848 if (firewire_debug > 2)
849 printf("fw_tl2xfer: found tl=%d\n", tlabel);
850 return(xfer);
851 }
852 }
853 if (firewire_debug > 1)
854 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
855 splx(s);
856 return(NULL);
857}
858
859/*
860 * To allocate IEEE1394 XFER structure.
861 */
862struct fw_xfer *
863fw_xfer_alloc(struct malloc_type *type)
864{
865 struct fw_xfer *xfer;
866
867 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
868 if (xfer == NULL)
869 return xfer;
870
871 microtime(&xfer->tv);
872 xfer->sub = -1;
873 xfer->malloc = type;
874
875 return xfer;
876}
877
878/*
879 * IEEE1394 XFER post process.
880 */
881void
882fw_xfer_done(struct fw_xfer *xfer)
883{
884 if (xfer->act.hand == NULL)
885 return;
886
887#if XFER_TIMEOUT
888 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch);
889#endif
890
891 if (xfer->fc->status != FWBUSRESET)
892 xfer->act.hand(xfer);
893 else {
894 printf("fw_xfer_done: pending\n");
895 if (xfer->fc != NULL)
896 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link);
897 else
898 panic("fw_xfer_done: why xfer->fc is NULL?");
899 }
900}
901
902/*
903 * To free IEEE1394 XFER structure.
904 */
905void
906fw_xfer_free( struct fw_xfer* xfer)
907{
908 int s;
909 if(xfer == NULL ) return;
910 if(xfer->state == FWXF_INQ){
911 printf("fw_xfer_free FWXF_INQ\n");
912 s = splfw();
913 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
914 xfer->q->queued --;
915 splx(s);
916 }
917 if(xfer->fc != NULL){
918 if(xfer->state == FWXF_START){
919#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */
920 printf("fw_xfer_free FWXF_START\n");
921#endif
922 s = splfw();
923 xfer->q->drain(xfer->fc, xfer);
924 splx(s);
925 }
926 }
927 if(xfer->send.buf != NULL){
928 free(xfer->send.buf, M_FW);
929 }
930 if(xfer->recv.buf != NULL){
931 free(xfer->recv.buf, M_FW);
932 }
933 if(xfer->fc != NULL){
934 fw_tl_free(xfer->fc, xfer);
935 }
936 free(xfer, xfer->malloc);
937}
938
939static void
940fw_asy_callback_free(struct fw_xfer *xfer)
941{
942#if 0
943 printf("asyreq done state=%d resp=%d\n",
944 xfer->state, xfer->resp);
945#endif
946 fw_xfer_free(xfer);
947}
948
949/*
950 * To configure PHY.
951 */
952static void
953fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
954{
955 struct fw_xfer *xfer;
956 struct fw_pkt *fp;
957
958 fc->status = FWBUSPHYCONF;
959
960#if 0
961 DELAY(100000);
962#endif
963 xfer = fw_xfer_alloc(M_FWXFER);
964 xfer->send.len = 12;
965 xfer->send.off = 0;
966 xfer->fc = fc;
967 xfer->retry_req = fw_asybusy;
968 xfer->act.hand = fw_asy_callback_free;
969
970 xfer->send.buf = malloc(sizeof(u_int32_t),
971 M_FW, M_NOWAIT | M_ZERO);
972 fp = (struct fw_pkt *)xfer->send.buf;
973 fp->mode.ld[1] = 0;
974 if (root_node >= 0)
975 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23);
976 if (gap_count >= 0)
977 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16);
978 fp->mode.ld[2] = ~fp->mode.ld[1];
979/* XXX Dangerous, how to pass PHY packet to device driver */
980 fp->mode.common.tcode |= FWTCODE_PHY;
981
982 if (firewire_debug)
983 printf("send phy_config root_node=%d gap_count=%d\n",
984 root_node, gap_count);
985 fw_asyreq(fc, -1, xfer);
986}
987
988#if 0
989/*
990 * Dump self ID.
991 */
992static void
993fw_print_sid(u_int32_t sid)
994{
995 union fw_self_id *s;
996 s = (union fw_self_id *) &sid;
997 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
998 " p0:%d p1:%d p2:%d i:%d m:%d\n",
999 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1000 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1001 s->p0.power_class, s->p0.port0, s->p0.port1,
1002 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1003}
1004#endif
1005
1006/*
1007 * To receive self ID.
1008 */
1009void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off)
1010{
1011 u_int32_t *p, *sid = (u_int32_t *)(buf + off);
1012 union fw_self_id *self_id;
1013 u_int i, j, node, c_port = 0, i_branch = 0;
1014
1015 fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
1016 fc->status = FWBUSINIT;
1017 fc->max_node = fc->nodeid & 0x3f;
1018 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
1019 fc->status = FWBUSCYMELECT;
1020 fc->topology_map->crc_len = 2;
1021 fc->topology_map->generation ++;
1022 fc->topology_map->self_id_count = 0;
1023 fc->topology_map->node_count = 0;
1024 fc->speed_map->generation ++;
1025 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1026 self_id = &fc->topology_map->self_id[0];
1027 for(i = 0; i < fc->sid_cnt; i ++){
1028 if (sid[1] != ~sid[0]) {
1029 printf("fw_sidrcv: invalid self-id packet\n");
1030 sid += 2;
1031 continue;
1032 }
1033 *self_id = *((union fw_self_id *)sid);
1034 fc->topology_map->crc_len++;
1035 if(self_id->p0.sequel == 0){
1036 fc->topology_map->node_count ++;
1037 c_port = 0;
1038#if 0
1039 fw_print_sid(sid[0]);
1040#endif
1041 node = self_id->p0.phy_id;
1042 if(fc->max_node < node){
1043 fc->max_node = self_id->p0.phy_id;
1044 }
1045 /* XXX I'm not sure this is the right speed_map */
1046 fc->speed_map->speed[node][node]
1047 = self_id->p0.phy_speed;
1048 for (j = 0; j < node; j ++) {
1049 fc->speed_map->speed[j][node]
1050 = fc->speed_map->speed[node][j]
1051 = min(fc->speed_map->speed[j][j],
1052 self_id->p0.phy_speed);
1053 }
1054 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1055 (self_id->p0.link_active && self_id->p0.contender)) {
1056 fc->irm = self_id->p0.phy_id;
1057 }
1058 if(self_id->p0.port0 >= 0x2){
1059 c_port++;
1060 }
1061 if(self_id->p0.port1 >= 0x2){
1062 c_port++;
1063 }
1064 if(self_id->p0.port2 >= 0x2){
1065 c_port++;
1066 }
1067 }
1068 if(c_port > 2){
1069 i_branch += (c_port - 2);
1070 }
1071 sid += 2;
1072 self_id++;
1073 fc->topology_map->self_id_count ++;
1074 }
1075 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1076 /* CRC */
1077 fc->topology_map->crc = fw_crc16(
1078 (u_int32_t *)&fc->topology_map->generation,
1079 fc->topology_map->crc_len * 4);
1080 fc->speed_map->crc = fw_crc16(
1081 (u_int32_t *)&fc->speed_map->generation,
1082 fc->speed_map->crc_len * 4);
1083 /* byteswap and copy to CSR */
1084 p = (u_int32_t *)fc->topology_map;
1085 for (i = 0; i <= fc->topology_map->crc_len; i++)
1086 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1087 p = (u_int32_t *)fc->speed_map;
1088 CSRARC(fc, SPED_MAP) = htonl(*p++);
1089 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1090 /* don't byte-swap u_int8_t array */
1091 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1092
1093 fc->max_hop = fc->max_node - i_branch;
1094#if 1
1095 printf(", maxhop <= %d", fc->max_hop);
1096#endif
1097
1098 if(fc->irm == -1 ){
1099 printf(", Not found IRM capable node");
1100 }else{
1101 printf(", cable IRM = %d", fc->irm);
1102 if (fc->irm == fc->nodeid)
1103 printf(" (me)");
1104 }
1105 printf("\n");
1106
1107 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1108 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) {
1109 fc->status = FWBUSMGRDONE;
1110 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1111 } else {
1112 fc->status = FWBUSMGRELECT;
1113 callout_reset(&fc->bmr_callout, hz/8,
1114 (void *)fw_try_bmr, (void *)fc);
1115 }
1116 } else {
1117 fc->status = FWBUSMGRDONE;
1118#if 0
1119 device_printf(fc->bdev, "BMR = %x\n",
1120 CSRARC(fc, BUS_MGR_ID));
1121#endif
1122 }
1123 free(buf, M_FW);
1124 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){
1125 /* I am BMGR */
1126 fw_bmr(fc);
1127 }
1128 callout_reset(&fc->busprobe_callout, hz/4,
1129 (void *)fw_bus_probe, (void *)fc);
1130}
1131
1132/*
1133 * To probe devices on the IEEE1394 bus.
1134 */
1135static void
1136fw_bus_probe(struct firewire_comm *fc)
1137{
1138 int s;
1139 struct fw_device *fwdev, *next;
1140
1141 s = splfw();
1142 fc->status = FWBUSEXPLORE;
1143 fc->retry_count = 0;
1144
1145/*
1146 * Invalidate all devices, just after bus reset. Devices
1147 * to be removed has not been seen longer time.
1148 */
1149 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1150 next = STAILQ_NEXT(fwdev, link);
1151 if (fwdev->status != FWDEVINVAL) {
1152 fwdev->status = FWDEVINVAL;
1153 fwdev->rcnt = 0;
1154 } else if(fwdev->rcnt < FW_MAXDEVRCNT) {
1155 fwdev->rcnt ++;
1156 } else {
1157 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link);
1158 free(fwdev, M_FW);
1159 }
1160 }
1161 fc->ongonode = 0;
1162 fc->ongoaddr = CSRROMOFF;
1163 fc->ongodev = NULL;
1164 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1165 fw_bus_explore(fc);
1166 splx(s);
1167}
1168
1169/*
1170 * To collect device informations on the IEEE1394 bus.
1171 */
1172static void
1173fw_bus_explore(struct firewire_comm *fc )
1174{
1175 int err = 0;
1176 struct fw_device *fwdev, *pfwdev, *tfwdev;
1177 u_int32_t addr;
1178 struct fw_xfer *xfer;
1179 struct fw_pkt *fp;
1180
1181 if(fc->status != FWBUSEXPLORE)
1182 return;
1183
1184loop:
1185 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1186
1187 if(fc->ongonode > fc->max_node) goto done;
1188 if(fc->ongonode >= 0x3f) goto done;
1189
1190 /* check link */
1191 /* XXX we need to check phy_id first */
1192 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
1193 if (firewire_debug)
1194 printf("node%d: link down\n", fc->ongonode);
1195 fc->ongonode++;
1196 goto loop;
1197 }
1198
1199 if(fc->ongoaddr <= CSRROMOFF &&
1200 fc->ongoeui.hi == 0xffffffff &&
1201 fc->ongoeui.lo == 0xffffffff ){
1202 fc->ongoaddr = CSRROMOFF;
1203 addr = 0xf0000000 | fc->ongoaddr;
1204 }else if(fc->ongoeui.hi == 0xffffffff ){
1205 fc->ongoaddr = CSRROMOFF + 0xc;
1206 addr = 0xf0000000 | fc->ongoaddr;
1207 }else if(fc->ongoeui.lo == 0xffffffff ){
1208 fc->ongoaddr = CSRROMOFF + 0x10;
1209 addr = 0xf0000000 | fc->ongoaddr;
1210 }else if(fc->ongodev == NULL){
1211 STAILQ_FOREACH(fwdev, &fc->devices, link)
1212 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1213 break;
1214 if(fwdev != NULL){
1215 fwdev->dst = fc->ongonode;
1216 fwdev->status = FWDEVATTACHED;
1217 fc->ongonode++;
1218 fc->ongoaddr = CSRROMOFF;
1219 fc->ongodev = NULL;
1220 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1221 goto loop;
1222 }
1223 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT);
1224 if(fwdev == NULL)
1225 return;
1226 fwdev->fc = fc;
1227 fwdev->rommax = 0;
1228 fwdev->dst = fc->ongonode;
1229 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1230 fwdev->status = FWDEVINIT;
1231#if 0
1232 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4)
1233 >> ((3 - (fc->ongonode % 4)) * 8);
1234#else
1235 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1236#endif
1237
1238 pfwdev = NULL;
1239 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1240 if (tfwdev->eui.hi > fwdev->eui.hi ||
1241 (tfwdev->eui.hi == fwdev->eui.hi &&
1242 tfwdev->eui.lo > fwdev->eui.lo))
1243 break;
1244 pfwdev = tfwdev;
1245 }
1246 if (pfwdev == NULL)
1247 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1248 else
1249 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1250
1251 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1252 linkspeed[fwdev->speed],
1253 fc->ongoeui.hi, fc->ongoeui.lo);
1254
1255 fc->ongodev = fwdev;
1256 fc->ongoaddr = CSRROMOFF;
1257 addr = 0xf0000000 | fc->ongoaddr;
1258 }else{
1259 addr = 0xf0000000 | fc->ongoaddr;
1260 }
1261#if 0
1262 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1263 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1264 fw_bus_explore_callback);
1265 if(xfer == NULL) goto done;
1266#else
1267 xfer = fw_xfer_alloc(M_FWXFER);
1268 if(xfer == NULL){
1269 goto done;
1270 }
1271 xfer->send.len = 16;
1272 xfer->spd = 0;
1273 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1274 if(xfer->send.buf == NULL){
1275 fw_xfer_free( xfer);
1276 return;
1277 }
1278
1279 xfer->send.off = 0;
1280 fp = (struct fw_pkt *)xfer->send.buf;
1281 fp->mode.rreqq.dest_hi = htons(0xffff);
1282 fp->mode.rreqq.tlrt = 0;
1283 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1284 fp->mode.rreqq.pri = 0;
1285 fp->mode.rreqq.src = 0;
1286 xfer->dst = FWLOCALBUS | fc->ongonode;
1287 fp->mode.rreqq.dst = htons(xfer->dst);
1288 fp->mode.rreqq.dest_lo = htonl(addr);
1289 xfer->act.hand = fw_bus_explore_callback;
1290
1291 if (firewire_debug)
1292 printf("node%d: explore addr=0x%x\n",
1293 fc->ongonode, fc->ongoaddr);
1294 err = fw_asyreq(fc, -1, xfer);
1295 if(err){
1296 fw_xfer_free( xfer);
1297 return;
1298 }
1299#endif
1300 return;
1301done:
1302 /* fw_attach_devs */
1303 fc->status = FWBUSEXPDONE;
1304 if (firewire_debug)
1305 printf("bus_explore done\n");
1306 fw_attach_dev(fc);
1307 return;
1308
1309}
1310
1311/* Portable Async. request read quad */
1312struct fw_xfer *
1313asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt,
1314 u_int32_t addr_hi, u_int32_t addr_lo,
1315 void (*hand) __P((struct fw_xfer*)))
1316{
1317 struct fw_xfer *xfer;
1318 struct fw_pkt *fp;
1319 int err;
1320
1321 xfer = fw_xfer_alloc(M_FWXFER);
1322 if(xfer == NULL){
1323 return NULL;
1324 }
1325 xfer->send.len = 16;
1326 xfer->spd = spd; /* XXX:min(spd, fc->spd) */
1327 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1328 if(xfer->send.buf == NULL){
1329 fw_xfer_free( xfer);
1330 return NULL;
1331 }
1332
1333 xfer->send.off = 0;
1334 fp = (struct fw_pkt *)xfer->send.buf;
1335 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff);
1336 if(tl & FWP_TL_VALID){
1337 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1338 }else{
1339 fp->mode.rreqq.tlrt = 0;
1340 }
1341 fp->mode.rreqq.tlrt |= rt & 0x3;
1342 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1343 fp->mode.rreqq.pri = 0;
1344 fp->mode.rreqq.src = 0;
1345 xfer->dst = addr_hi >> 16;
1346 fp->mode.rreqq.dst = htons(xfer->dst);
1347 fp->mode.rreqq.dest_lo = htonl(addr_lo);
1348 xfer->act.hand = hand;
1349
1350 err = fw_asyreq(fc, -1, xfer);
1351 if(err){
1352 fw_xfer_free( xfer);
1353 return NULL;
1354 }
1355 return xfer;
1356}
1357
1358/*
1359 * Callback for the IEEE1394 bus information collection.
1360 */
1361static void
1362fw_bus_explore_callback(struct fw_xfer *xfer)
1363{
1364 struct firewire_comm *fc;
1365 struct fw_pkt *sfp,*rfp;
1366 struct csrhdr *chdr;
1367 struct csrdir *csrd;
1368 struct csrreg *csrreg;
1369 u_int32_t offset;
1370
1371
1372 if(xfer == NULL) {
1373 printf("xfer == NULL\n");
1374 return;
1375 }
1376 fc = xfer->fc;
1377
1378 if (firewire_debug)
1379 printf("node%d: callback addr=0x%x\n",
1380 fc->ongonode, fc->ongoaddr);
1381
1382 if(xfer->resp != 0){
1383 printf("node%d: resp=%d addr=0x%x\n",
1384 fc->ongonode, xfer->resp, fc->ongoaddr);
1385 fc->retry_count++;
1386 goto nextnode;
1387 }
1388
1389 if(xfer->send.buf == NULL){
1390 printf("node%d: send.buf=NULL addr=0x%x\n",
1391 fc->ongonode, fc->ongoaddr);
1392 fc->retry_count++;
1393 goto nextnode;
1394 }
1395 sfp = (struct fw_pkt *)xfer->send.buf;
1396
1397 if(xfer->recv.buf == NULL){
1398 printf("node%d: recv.buf=NULL addr=0x%x\n",
1399 fc->ongonode, fc->ongoaddr);
1400 fc->retry_count++;
1401 goto nextnode;
1402 }
1403 rfp = (struct fw_pkt *)xfer->recv.buf;
1404#if 0
1405 {
1406 u_int32_t *qld;
1407 int i;
1408 qld = (u_int32_t *)xfer->recv.buf;
1409 printf("len:%d\n", xfer->recv.len);
1410 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1411 printf("0x%08x ", ntohl(rfp->mode.ld[i/4]));
1412 if((i % 16) == 15) printf("\n");
1413 }
1414 if((i % 16) != 15) printf("\n");
1415 }
1416#endif
1417 if(fc->ongodev == NULL){
1418 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){
1419 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1420 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1421/* If CSR is minimal confinguration, more investgation is not needed. */
1422 if(chdr->info_len == 1){
1423 if (firewire_debug)
1424 printf("node%d: minimal config\n",
1425 fc->ongonode);
1426 goto nextnode;
1427 }else{
1428 fc->ongoaddr = CSRROMOFF + 0xc;
1429 }
1430 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){
1431 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1432 fc->ongoaddr = CSRROMOFF + 0x10;
1433 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){
1434 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1435 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1436 if (firewire_debug)
1437 printf("node%d: eui64 is zero.\n",
1438 fc->ongonode);
1439 goto nextnode;
1440 }
1441 fc->ongoaddr = CSRROMOFF;
1442 }
1443 }else{
1444 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1445 if(fc->ongoaddr > fc->ongodev->rommax){
1446 fc->ongodev->rommax = fc->ongoaddr;
1447 }
1448 csrd = SLIST_FIRST(&fc->ongocsr);
1449 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1450 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1451 offset = CSRROMOFF;
1452 }else{
1453 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1454 offset = csrd->off;
1455 }
1456 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1457 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1458 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1459 csrd = SLIST_FIRST(&fc->csrfree);
1460 if(csrd == NULL){
1461 goto nextnode;
1462 }else{
1463 csrd->ongoaddr = fc->ongoaddr;
1464 fc->ongoaddr += csrreg->val * 4;
1465 csrd->off = fc->ongoaddr;
1466 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1467 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1468 goto nextaddr;
1469 }
1470 }
1471 }
1472 fc->ongoaddr += 4;
1473 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1474 (fc->ongodev->rommax < 0x414)){
1475 if(fc->ongodev->rommax <= 0x414){
1476 csrd = SLIST_FIRST(&fc->csrfree);
1477 if(csrd == NULL) goto nextnode;
1478 csrd->off = fc->ongoaddr;
1479 csrd->ongoaddr = fc->ongoaddr;
1480 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1481 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1482 }
1483 goto nextaddr;
1484 }
1485
1486 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1487 if(csrd == NULL){
1488 goto nextnode;
1489 };
1490 fc->ongoaddr = csrd->ongoaddr + 4;
1491 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1492 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1493 csrd = SLIST_FIRST(&fc->ongocsr);
1494 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1495 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1496 offset = CSRROMOFF;
1497 }else{
1498 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1499 offset = csrd->off;
1500 }
1501 }
1502 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1503 goto nextnode;
1504 }
1505 }
1506nextaddr:
1507 fw_xfer_free( xfer);
1508 fw_bus_explore(fc);
1509 return;
1510nextnode:
1511 fw_xfer_free( xfer);
1512 fc->ongonode++;
1513/* housekeeping work space */
1514 fc->ongoaddr = CSRROMOFF;
1515 fc->ongodev = NULL;
1516 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1517 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1518 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1519 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1520 }
1521 fw_bus_explore(fc);
1522 return;
1523}
1524
1525/*
1526 * To obtain CSR register values.
1527 */
1528u_int32_t
1529getcsrdata(struct fw_device *fwdev, u_int8_t key)
1530{
1531 int i;
1532 struct csrhdr *chdr;
1533 struct csrreg *creg;
1534 chdr = (struct csrhdr *)&fwdev->csrrom[0];
1535 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){
1536 creg = (struct csrreg *)&fwdev->csrrom[i/4];
1537 if(creg->key == key){
1538 return (u_int32_t)creg->val;
1539 }
1540 }
1541 return 0;
1542}
1543
1544/*
1545 * To attach sub-devices layer onto IEEE1394 bus.
1546 */
1547static void
1548fw_attach_dev(struct firewire_comm *fc)
1549{
1550 struct fw_device *fwdev;
1551 struct fw_xfer *xfer;
1552 int i, err;
1553 device_t *devlistp;
1554 int devcnt;
1555 struct firewire_dev_comm *fdc;
1556 u_int32_t spec, ver;
1557
1558 STAILQ_FOREACH(fwdev, &fc->devices, link) {
1559 if(fwdev->status == FWDEVINIT){
1560 spec = getcsrdata(fwdev, CSRKEY_SPEC);
1561 if(spec == 0)
1562 continue;
1563 ver = getcsrdata(fwdev, CSRKEY_VER);
1564 if(ver == 0)
1565 continue;
1566 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf;
1567
1568 device_printf(fc->bdev, "Device ");
1569 switch(spec){
1570 case CSRVAL_ANSIT10:
1571 switch(ver){
1572 case CSRVAL_T10SBP2:
1573 printf("SBP-II");
1574 break;
1575 default:
1576 break;
1577 }
1578 break;
1579 case CSRVAL_1394TA:
1580 switch(ver){
1581 case CSR_PROTAVC:
1582 printf("AV/C");
1583 break;
1584 case CSR_PROTCAL:
1585 printf("CAL");
1586 break;
1587 case CSR_PROTEHS:
1588 printf("EHS");
1589 break;
1590 case CSR_PROTHAVI:
1591 printf("HAVi");
1592 break;
1593 case CSR_PROTCAM104:
1594 printf("1394 Cam 1.04");
1595 break;
1596 case CSR_PROTCAM120:
1597 printf("1394 Cam 1.20");
1598 break;
1599 case CSR_PROTCAM130:
1600 printf("1394 Cam 1.30");
1601 break;
1602 case CSR_PROTDPP:
1603 printf("1394 Direct print");
1604 break;
1605 case CSR_PROTIICP:
1606 printf("Industrial & Instrument");
1607 break;
1608 default:
1609 printf("unknown 1394TA");
1610 break;
1611 }
1612 break;
1613 default:
1614 printf("unknown spec");
1615 break;
1616 }
1617 fwdev->status = FWDEVATTACHED;
1618 printf("\n");
1619 }
1620 }
1621 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1622 if( err != 0 )
1623 return;
1624 for( i = 0 ; i < devcnt ; i++){
1625 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1626 fdc = device_get_softc(devlistp[i]);
1627 if (fdc->post_explore != NULL)
1628 fdc->post_explore(fdc);
1629 }
1630 }
1631 free(devlistp, M_TEMP);
1632
1633 /* call pending handlers */
1634 i = 0;
1635 while ((xfer = STAILQ_FIRST(&fc->pending))) {
1636 STAILQ_REMOVE_HEAD(&fc->pending, link);
1637 i++;
1638 if (xfer->act.hand)
1639 xfer->act.hand(xfer);
1640 }
1641 if (i > 0)
1642 printf("fw_attach_dev: %d pending handlers called\n", i);
1643 if (fc->retry_count > 0) {
1644 printf("retry_count = %d\n", fc->retry_count);
1645 callout_reset(&fc->retry_probe_callout, hz*2,
1646 (void *)fc->ibr, (void *)fc);
1647 }
1648 return;
1649}
1650
1651/*
1652 * To allocate uniq transaction label.
1653 */
1654static int
1655fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1656{
1657 u_int i;
1658 struct tlabel *tl, *tmptl;
1659 int s;
1660 static u_int32_t label = 0;
1661
1662 s = splfw();
1663 for( i = 0 ; i < 0x40 ; i ++){
1664 label = (label + 1) & 0x3f;
1665 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1666 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1667 if(tmptl->xfer->dst == xfer->dst) break;
1668 }
1669 if(tmptl == NULL) {
1670 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT);
1671 if (tl == NULL) {
1672 splx(s);
1673 return (-1);
1674 }
1675 tl->xfer = xfer;
1676 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1677 splx(s);
1678 if (firewire_debug > 1)
1679 printf("fw_get_tlabel: dst=%d tl=%d\n",
1680 xfer->dst, label);
1681 return(label);
1682 }
1683 }
1684 splx(s);
1685
1686 printf("fw_get_tlabel: no free tlabel\n");
1687 return(-1);
1688}
1689
1690/*
1691 * Generic packet receving process.
1692 */
1693void
1694fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd)
1695{
1696 struct fw_pkt *fp, *resfp;
1697 struct fw_xfer *xfer;
1698 struct fw_bind *bind;
1699 struct firewire_softc *sc;
1700 int s;
1701#if 0
1702 {
1703 u_int32_t *qld;
1704 int i;
1705 qld = (u_int32_t *)buf;
1706 printf("spd %d len:%d\n", spd, len);
1707 for( i = 0 ; i <= len && i < 32; i+= 4){
1708 printf("0x%08x ", ntohl(qld[i/4]));
1709 if((i % 16) == 15) printf("\n");
1710 }
1711 if((i % 16) != 15) printf("\n");
1712 }
1713#endif
1714 fp = (struct fw_pkt *)(buf + off);
1715 switch(fp->mode.common.tcode){
1716 case FWTCODE_WRES:
1717 case FWTCODE_RRESQ:
1718 case FWTCODE_RRESB:
1719 case FWTCODE_LRES:
1720 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
1721 fp->mode.hdr.tlrt >> 2);
1722 if(xfer == NULL) {
1723 printf("fw_rcv: unknown response "
1724 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n",
1725 fp->mode.common.tcode,
1726 ntohs(fp->mode.hdr.src),
1727 fp->mode.hdr.tlrt >> 2,
1728 fp->mode.hdr.tlrt & 3,
1729 fp->mode.rresq.data);
1730#if 1
1731 printf("try ad-hoc work around!!\n");
1732 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
1733 (fp->mode.hdr.tlrt >> 2)^3);
1734 if (xfer == NULL) {
1735 printf("no use...\n");
1736 goto err;
1737 }
1738#else
1739 goto err;
1740#endif
1741 }
1742 switch(xfer->act_type){
1743 case FWACT_XFER:
1744 if((xfer->sub >= 0) &&
1745 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){
1746 xfer->resp = EINVAL;
1747 fw_xfer_done(xfer);
1748 goto err;
1749 }
1750 xfer->recv.len = len;
1751 xfer->recv.off = off;
1752 xfer->recv.buf = buf;
1753 xfer->resp = 0;
1754 fw_xfer_done(xfer);
1755 return;
1756 break;
1757 case FWACT_CH:
1758 default:
1759 goto err;
1760 break;
1761 }
1762 break;
1763 case FWTCODE_WREQQ:
1764 case FWTCODE_WREQB:
1765 case FWTCODE_RREQQ:
1766 case FWTCODE_RREQB:
1767 case FWTCODE_LREQ:
1768 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi),
1769 ntohl(fp->mode.rreqq.dest_lo));
1770 if(bind == NULL){
1771#if __FreeBSD_version >= 500000
1772 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n",
1773#else
1774 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n",
1775#endif
1776 ntohs(fp->mode.rreqq.dest_hi),
1777 ntohl(fp->mode.rreqq.dest_lo),
1778 fp->mode.common.tcode);
1779 if (fc->status == FWBUSRESET) {
1780 printf("fw_rcv: cannot respond(bus reset)!\n");
1781 goto err;
1782 }
1783 xfer = fw_xfer_alloc(M_FWXFER);
1784 if(xfer == NULL){
1785 return;
1786 }
1787 xfer->spd = spd;
1788 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1789 resfp = (struct fw_pkt *)xfer->send.buf;
1790 switch(fp->mode.common.tcode){
1791 case FWTCODE_WREQQ:
1792 case FWTCODE_WREQB:
1793 resfp->mode.hdr.tcode = FWTCODE_WRES;
1794 xfer->send.len = 12;
1795 break;
1796 case FWTCODE_RREQQ:
1797 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1798 xfer->send.len = 16;
1799 break;
1800 case FWTCODE_RREQB:
1801 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1802 xfer->send.len = 16;
1803 break;
1804 case FWTCODE_LREQ:
1805 resfp->mode.hdr.tcode = FWTCODE_LRES;
1806 xfer->send.len = 16;
1807 break;
1808 }
1809 resfp->mode.hdr.dst = fp->mode.hdr.src;
1810 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1811 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1812 resfp->mode.rresb.rtcode = 7;
1813 resfp->mode.rresb.extcode = 0;
1814 resfp->mode.rresb.len = 0;
1815/*
1816 xfer->act.hand = fw_asy_callback;
1817*/
1818 xfer->act.hand = fw_xfer_free;
1819 if(fw_asyreq(fc, -1, xfer)){
1820 fw_xfer_free( xfer);
1821 return;
1822 }
1823 goto err;
1824 }
1825 switch(bind->xfer->act_type){
1826 case FWACT_XFER:
1827 xfer = fw_xfer_alloc(M_FWXFER);
1828 if(xfer == NULL) goto err;
1829 xfer->fc = bind->xfer->fc;
1830 xfer->sc = bind->xfer->sc;
1831 xfer->recv.buf = buf;
1832 xfer->recv.len = len;
1833 xfer->recv.off = off;
1834 xfer->spd = spd;
1835 xfer->act.hand = bind->xfer->act.hand;
1836 if (fc->status != FWBUSRESET)
1837 xfer->act.hand(xfer);
1838 else
1839 STAILQ_INSERT_TAIL(&fc->pending, xfer, link);
1840 return;
1841 break;
1842 case FWACT_CH:
1843 if(fc->ir[bind->xfer->sub]->queued >=
1844 fc->ir[bind->xfer->sub]->maxq){
1845 device_printf(fc->bdev,
1846 "Discard a packet %x %d\n",
1847 bind->xfer->sub,
1848 fc->ir[bind->xfer->sub]->queued);
1849 goto err;
1850 }
1851 xfer = fw_xfer_alloc(M_FWXFER);
1852 if(xfer == NULL) goto err;
1853 xfer->recv.buf = buf;
1854 xfer->recv.len = len;
1855 xfer->recv.off = off;
1856 xfer->spd = spd;
1857 s = splfw();
1858 fc->ir[bind->xfer->sub]->queued++;
1859 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link);
1860 splx(s);
1861
1862 wakeup((caddr_t)fc->ir[bind->xfer->sub]);
1863
1864 return;
1865 break;
1866 default:
1867 goto err;
1868 break;
1869 }
1870 break;
1871 case FWTCODE_STREAM:
1872 {
1873 struct fw_xferq *xferq;
1874
1875 xferq = fc->ir[sub];
1876#if 0
1877 printf("stream rcv dma %d len %d off %d spd %d\n",
1878 sub, len, off, spd);
1879#endif
1880 if(xferq->queued >= xferq->maxq) {
1881 printf("receive queue is full\n");
1882 goto err;
1883 }
1884 xfer = fw_xfer_alloc(M_FWXFER);
1885 if(xfer == NULL) goto err;
1886 xfer->recv.buf = buf;
1887 xfer->recv.len = len;
1888 xfer->recv.off = off;
1889 xfer->spd = spd;
1890 s = splfw();
1891 xferq->queued++;
1892 STAILQ_INSERT_TAIL(&xferq->q, xfer, link);
1893 splx(s);
1894 sc = device_get_softc(fc->bdev);
1895#if __FreeBSD_version >= 500000
1896 if (SEL_WAITING(&xferq->rsel))
1897#else
1898 if (&xferq->rsel.si_pid != 0)
1899#endif
1900 selwakeup(&xferq->rsel);
1901 if (xferq->flag & FWXFERQ_WAKEUP) {
1902 xferq->flag &= ~FWXFERQ_WAKEUP;
1903 wakeup((caddr_t)xferq);
1904 }
1905 if (xferq->flag & FWXFERQ_HANDLER) {
1906 xferq->hand(xferq);
1907 }
1908 return;
1909 break;
1910 }
1911 default:
1912 printf("fw_rcv: unknow tcode\n");
1913 break;
1914 }
1915err:
1916 free(buf, M_FW);
1917}
1918
1919/*
1920 * Post process for Bus Manager election process.
1921 */
1922static void
1923fw_try_bmr_callback(struct fw_xfer *xfer)
1924{
1925 struct fw_pkt *rfp;
1926 struct firewire_comm *fc;
1927 int bmr;
1928
1929 if (xfer == NULL)
1930 return;
1931 fc = xfer->fc;
1932 if (xfer->resp != 0)
1933 goto error;
1934 if (xfer->send.buf == NULL)
1935 goto error;
1936 if (xfer->recv.buf == NULL)
1937 goto error;
1938 rfp = (struct fw_pkt *)xfer->recv.buf;
1939 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE)
1940 goto error;
1941
1942 bmr = ntohl(rfp->mode.lres.payload[0]);
1943 if (bmr == 0x3f)
1944 bmr = fc->nodeid;
1945
1946 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
1947 device_printf(fc->bdev, "new bus manager %d ",
1948 CSRARC(fc, BUS_MGR_ID));
1949 if(bmr == fc->nodeid){
1950 printf("(me)\n");
1951 fw_bmr(fc);
1952 }else{
1953 printf("\n");
1954 }
1955error:
1956 fw_xfer_free(xfer);
1957}
1958
1959/*
1960 * To candidate Bus Manager election process.
1961 */
1962static void
1963fw_try_bmr(void *arg)
1964{
1965 struct fw_xfer *xfer;
1966 struct firewire_comm *fc = (struct firewire_comm *)arg;
1967 struct fw_pkt *fp;
1968 int err = 0;
1969
1970 xfer = fw_xfer_alloc(M_FWXFER);
1971 if(xfer == NULL){
1972 return;
1973 }
1974 xfer->send.len = 24;
1975 xfer->spd = 0;
1976 xfer->send.buf = malloc(24, M_FW, M_NOWAIT);
1977 if(xfer->send.buf == NULL){
1978 fw_xfer_free( xfer);
1979 return;
1980 }
1981
1982 fc->status = FWBUSMGRELECT;
1983
1984 xfer->send.off = 0;
1985 fp = (struct fw_pkt *)xfer->send.buf;
1986 fp->mode.lreq.dest_hi = htons(0xffff);
1987 fp->mode.lreq.tlrt = 0;
1988 fp->mode.lreq.tcode = FWTCODE_LREQ;
1989 fp->mode.lreq.pri = 0;
1990 fp->mode.lreq.src = 0;
1991 fp->mode.lreq.len = htons(8);
1992 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP);
1993 xfer->dst = FWLOCALBUS | fc->irm;
1994 fp->mode.lreq.dst = htons(xfer->dst);
1995 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID);
1996 fp->mode.lreq.payload[0] = htonl(0x3f);
1997 fp->mode.lreq.payload[1] = htonl(fc->nodeid);
1998 xfer->act_type = FWACT_XFER;
1999 xfer->act.hand = fw_try_bmr_callback;
2000
2001 err = fw_asyreq(fc, -1, xfer);
2002 if(err){
2003 fw_xfer_free( xfer);
2004 return;
2005 }
2006 return;
2007}
2008
2009#ifdef FW_VMACCESS
2010/*
2011 * Software implementation for physical memory block access.
2012 * XXX:Too slow, usef for debug purpose only.
2013 */
2014static void
2015fw_vmaccess(struct fw_xfer *xfer){
2016 struct fw_pkt *rfp, *sfp = NULL;
2017 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off);
2018
2019 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n",
2020 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2021 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2022 if(xfer->resp != 0){
2023 fw_xfer_free( xfer);
2024 return;
2025 }
2026 if(xfer->recv.buf == NULL){
2027 fw_xfer_free( xfer);
2028 return;
2029 }
2030 rfp = (struct fw_pkt *)xfer->recv.buf;
2031 switch(rfp->mode.hdr.tcode){
2032 /* XXX need fix for 64bit arch */
2033 case FWTCODE_WREQB:
2034 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2035 xfer->send.len = 12;
2036 sfp = (struct fw_pkt *)xfer->send.buf;
2037 bcopy(rfp->mode.wreqb.payload,
2038 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2039 sfp->mode.wres.tcode = FWTCODE_WRES;
2040 sfp->mode.wres.rtcode = 0;
2041 break;
2042 case FWTCODE_WREQQ:
2043 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2044 xfer->send.len = 12;
2045 sfp->mode.wres.tcode = FWTCODE_WRES;
2046 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2047 sfp->mode.wres.rtcode = 0;
2048 break;
2049 case FWTCODE_RREQB:
2050 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2051 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2052 sfp = (struct fw_pkt *)xfer->send.buf;
2053 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2054 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
2055 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2056 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2057 sfp->mode.rresb.rtcode = 0;
2058 sfp->mode.rresb.extcode = 0;
2059 break;
2060 case FWTCODE_RREQQ:
2061 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2062 xfer->send.len = 16;
2063 sfp = (struct fw_pkt *)xfer->send.buf;
2064 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2065 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2066 sfp->mode.rresb.rtcode = 0;
2067 break;
2068 default:
2069 fw_xfer_free( xfer);
2070 return;
2071 }
2072 xfer->send.off = 0;
2073 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2074 xfer->dst = ntohs(rfp->mode.hdr.src);
2075 xfer->act.hand = fw_xfer_free;
2076 xfer->retry_req = fw_asybusy;
2077
2078 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2079 sfp->mode.hdr.pri = 0;
2080
2081 fw_asyreq(xfer->fc, -1, xfer);
2082/**/
2083 return;
2084}
2085#endif
2086
2087/*
2088 * CRC16 check-sum for IEEE1394 register blocks.
2089 */
2090u_int16_t
2091fw_crc16(u_int32_t *ptr, u_int32_t len){
2092 u_int32_t i, sum, crc = 0;
2093 int shift;
2094 len = (len + 3) & ~3;
2095 for(i = 0 ; i < len ; i+= 4){
2096 for( shift = 28 ; shift >= 0 ; shift -= 4){
2097 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2098 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2099 }
2100 crc &= 0xffff;
2101 }
2102 return((u_int16_t) crc);
2103}
2104
2105static int
2106fw_bmr(struct firewire_comm *fc)
2107{
2108 struct fw_device fwdev;
2109 int cmstr;
2110
2111 /* XXX Assume that the current root node is cycle master capable */
2112 cmstr = fc->max_node;
2113 /* If I am the bus manager, optimize gapcount */
2114 if(fc->max_hop <= MAX_GAPHOP ){
2115 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1,
2116 gap_cnt[fc->max_hop]);
2117 }
2118 /* If we are the cycle master, nothing to do */
2119 if (cmstr == fc->nodeid)
2120 return 0;
2121 /* Bus probe has not finished, make dummy fwdev for cmstr */
2122 bzero(&fwdev, sizeof(fwdev));
2123 fwdev.fc = fc;
2124 fwdev.dst = cmstr;
2125 fwdev.speed = 0;
2126 fwdev.maxrec = 8; /* 512 */
2127 fwdev.status = FWDEVINIT;
2128 /* Set cmstr bit on the cycle master */
2129 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2130 0xffff, 0xf0000000 | STATE_SET, 1 << 16,
2131 fw_asy_callback_free);
2132
2133 return 0;
2134}
2135
2136DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0);
2137MODULE_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 110891 2003-02-15 00:54:10Z 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;
339
340 split_timeout.tv_sec = 6;
341 split_timeout.tv_usec = 0;
342
343 microtime(&tv);
344 timevalsub(&tv, &split_timeout);
345
346 for (i = 0; i < 0x40; i ++) {
347 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
348 xfer = tl->xfer;
349 if (timevalcmp(&xfer->tv, &tv, >))
350 /* the rests are newer than this */
351 break;
352 device_printf(fc->bdev,
353 "split transaction timeout dst=0x%x tl=0x%x\n",
354 xfer->dst, i);
355 xfer->resp = ETIMEDOUT;
356 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
357 switch (xfer->act_type) {
358 case FWACT_XFER:
359 fw_xfer_done(xfer);
360 break;
361 default:
362 /* ??? */
363 fw_xfer_free(xfer);
364 break;
365 }
366 }
367 }
368}
369
370static void
371firewire_watchdog(void *arg)
372{
373 struct firewire_comm *fc;
374
375 fc = (struct firewire_comm *)arg;
376 firewire_xfer_timeout(fc);
377 fc->timeout(fc);
378 callout_reset(&fc->timeout_callout, hz,
379 (void *)firewire_watchdog, (void *)fc);
380}
381
382/*
383 * The attach routine.
384 */
385static int
386firewire_attach( device_t dev )
387{
388 int i, unitmask, mn;
389 struct firewire_softc *sc = device_get_softc(dev);
390 device_t pa = device_get_parent(dev);
391 struct firewire_comm *fc;
392 dev_t d;
393
394 fc = (struct firewire_comm *)device_get_softc(pa);
395 sc->fc = fc;
396
397 unitmask = UNIT2MIN(device_get_unit(dev));
398
399 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
400 for ( i = 0 ; i < fc->nisodma ; i++ ){
401 mn = unitmask | i;
402 /* XXX device name should be improved */
403 d = make_dev(&firewire_cdevsw, unit2minor(mn),
404 UID_ROOT, GID_OPERATOR, 0660,
405 "fw%x", mn);
406#if __FreeBSD_version >= 500000
407 if (i == 0)
408 sc->dev = d;
409 else
410 dev_depends(sc->dev, d);
411#else
412 sc->dev[i] = d;
413#endif
414 }
415 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG),
416 UID_ROOT, GID_OPERATOR, 0660,
417 "fwmem%d", device_get_unit(dev));
418#if __FreeBSD_version >= 500000
419 dev_depends(sc->dev, d);
420#else
421 sc->dev[i] = d;
422#endif
423#if __FreeBSD_version >= 500000
424#define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */)
425#else
426#define CALLOUT_INIT(x) callout_init(x)
427#endif
428 CALLOUT_INIT(&sc->fc->timeout_callout);
429 CALLOUT_INIT(&sc->fc->bmr_callout);
430 CALLOUT_INIT(&sc->fc->retry_probe_callout);
431 CALLOUT_INIT(&sc->fc->busprobe_callout);
432
433 callout_reset(&sc->fc->timeout_callout, hz,
434 (void *)firewire_watchdog, (void *)sc->fc);
435
436 /* Locate our children */
437 bus_generic_probe(dev);
438
439 /* launch attachement of the added children */
440 bus_generic_attach(dev);
441
442#if 1
443 /* bus_reset */
444 fc->ibr(fc);
445#endif
446
447 return 0;
448}
449
450/*
451 * Attach it as child.
452 */
453static device_t
454firewire_add_child(device_t dev, int order, const char *name, int unit)
455{
456 device_t child;
457 struct firewire_softc *sc;
458
459 sc = (struct firewire_softc *)device_get_softc(dev);
460 child = device_add_child(dev, name, unit);
461 if (child) {
462 device_set_ivars(child, sc->fc);
463 device_probe_and_attach(child);
464 }
465
466 return child;
467}
468
469/*
470 * Dettach it.
471 */
472static int
473firewire_detach( device_t dev )
474{
475 struct firewire_softc *sc;
476
477 sc = (struct firewire_softc *)device_get_softc(dev);
478
479#if __FreeBSD_version >= 500000
480 destroy_dev(sc->dev);
481#else
482 {
483 int j;
484 for (j = 0 ; j < sc->fc->nisodma + 1; j++)
485 destroy_dev(sc->dev[j]);
486 }
487#endif
488 /* XXX xfree_free and untimeout on all xfers */
489 callout_stop(&sc->fc->timeout_callout);
490 callout_stop(&sc->fc->bmr_callout);
491 callout_stop(&sc->fc->retry_probe_callout);
492 callout_stop(&sc->fc->busprobe_callout);
493 free(sc->fc->topology_map, M_FW);
494 free(sc->fc->speed_map, M_FW);
495 bus_generic_detach(dev);
496 return(0);
497}
498#if 0
499static int
500firewire_shutdown( device_t dev )
501{
502 return 0;
503}
504#endif
505
506
507static void
508fw_xferq_drain(struct fw_xferq *xferq)
509{
510 struct fw_xfer *xfer;
511
512 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
513 STAILQ_REMOVE_HEAD(&xferq->q, link);
514 xfer->resp = EAGAIN;
515 switch (xfer->act_type) {
516 case FWACT_XFER:
517 fw_xfer_done(xfer);
518 break;
519 default:
520 /* ??? */
521 fw_xfer_free(xfer);
522 break;
523 }
524 }
525}
526
527void
528fw_drain_txq(struct firewire_comm *fc)
529{
530 int i;
531
532 fw_xferq_drain(fc->atq);
533 fw_xferq_drain(fc->ats);
534 for(i = 0; i < fc->nisodma; i++)
535 fw_xferq_drain(fc->it[i]);
536}
537
538/*
539 * Called after bus reset.
540 */
541void
542fw_busreset(struct firewire_comm *fc)
543{
544 int i;
545
546 switch(fc->status){
547 case FWBUSMGRELECT:
548 callout_stop(&fc->bmr_callout);
549 break;
550 default:
551 break;
552 }
553 fc->status = FWBUSRESET;
554 CSRARC(fc, STATE_CLEAR)
555 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
556 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
557 CSRARC(fc, NODE_IDS) = 0x3f;
558
559 CSRARC(fc, TOPO_MAP + 8) = 0;
560 fc->irm = -1;
561
562 fc->max_node = -1;
563
564 for(i = 2; i < 0x100/4 - 2 ; i++){
565 CSRARC(fc, SPED_MAP + i * 4) = 0;
566 }
567 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
568 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
569 CSRARC(fc, RESET_START) = 0;
570 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
571 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
572 CSRARC(fc, CYCLE_TIME) = 0x0;
573 CSRARC(fc, BUS_TIME) = 0x0;
574 CSRARC(fc, BUS_MGR_ID) = 0x3f;
575 CSRARC(fc, BANDWIDTH_AV) = 4915;
576 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
577 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
578 CSRARC(fc, IP_CHANNELS) = (1 << 31);
579
580 CSRARC(fc, CONF_ROM) = 0x04 << 24;
581 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
582 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
583 1 << 28 | 0xff << 16 | 0x09 << 8;
584 CSRARC(fc, CONF_ROM + 0xc) = 0;
585
586/* DV depend CSRs see blue book */
587 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
588 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
589
590 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
591 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
592}
593
594/* Call once after reboot */
595void fw_init(struct firewire_comm *fc)
596{
597 int i;
598 struct csrdir *csrd;
599#ifdef FW_VMACCESS
600 struct fw_xfer *xfer;
601 struct fw_bind *fwb;
602#endif
603
604 fc->max_asyretry = FW_MAXASYRTY;
605
606 fc->arq->queued = 0;
607 fc->ars->queued = 0;
608 fc->atq->queued = 0;
609 fc->ats->queued = 0;
610
611 fc->arq->psize = PAGE_SIZE;
612 fc->ars->psize = PAGE_SIZE;
613 fc->atq->psize = 0;
614 fc->ats->psize = 0;
615
616
617 fc->arq->buf = NULL;
618 fc->ars->buf = NULL;
619 fc->atq->buf = NULL;
620 fc->ats->buf = NULL;
621
622 fc->arq->flag = FWXFERQ_PACKET;
623 fc->ars->flag = FWXFERQ_PACKET;
624 fc->atq->flag = FWXFERQ_PACKET;
625 fc->ats->flag = FWXFERQ_PACKET;
626
627 STAILQ_INIT(&fc->atq->q);
628 STAILQ_INIT(&fc->ats->q);
629
630 for( i = 0 ; i < fc->nisodma ; i ++ ){
631 fc->it[i]->queued = 0;
632 fc->ir[i]->queued = 0;
633
634 fc->it[i]->start = NULL;
635 fc->ir[i]->start = NULL;
636
637 fc->it[i]->buf = NULL;
638 fc->ir[i]->buf = NULL;
639
640 fc->it[i]->flag = FWXFERQ_STREAM;
641 fc->ir[i]->flag = FWXFERQ_STREAM;
642
643 STAILQ_INIT(&fc->it[i]->q);
644 STAILQ_INIT(&fc->ir[i]->q);
645
646 STAILQ_INIT(&fc->it[i]->binds);
647 STAILQ_INIT(&fc->ir[i]->binds);
648 }
649
650 fc->arq->maxq = FWMAXQUEUE;
651 fc->ars->maxq = FWMAXQUEUE;
652 fc->atq->maxq = FWMAXQUEUE;
653 fc->ats->maxq = FWMAXQUEUE;
654
655 for( i = 0 ; i < fc->nisodma ; i++){
656 fc->ir[i]->maxq = FWMAXQUEUE;
657 fc->it[i]->maxq = FWMAXQUEUE;
658 }
659/* Initialize csr registers */
660 fc->topology_map = (struct fw_topology_map *)malloc(
661 sizeof(struct fw_topology_map),
662 M_FW, M_NOWAIT | M_ZERO);
663 fc->speed_map = (struct fw_speed_map *)malloc(
664 sizeof(struct fw_speed_map),
665 M_FW, M_NOWAIT | M_ZERO);
666 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
667 CSRARC(fc, TOPO_MAP + 4) = 1;
668 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
669 CSRARC(fc, SPED_MAP + 4) = 1;
670
671 STAILQ_INIT(&fc->devices);
672 STAILQ_INIT(&fc->pending);
673
674/* Initialize csr ROM work space */
675 SLIST_INIT(&fc->ongocsr);
676 SLIST_INIT(&fc->csrfree);
677 for( i = 0 ; i < FWMAXCSRDIR ; i++){
678 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT);
679 if(csrd == NULL) break;
680 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
681 }
682
683/* Initialize Async handlers */
684 STAILQ_INIT(&fc->binds);
685 for( i = 0 ; i < 0x40 ; i++){
686 STAILQ_INIT(&fc->tlabels[i]);
687 }
688
689/* DV depend CSRs see blue book */
690#if 0
691 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
692 CSRARC(fc, oPCR) = 0x8000007a;
693 for(i = 4 ; i < 0x7c/4 ; i+=4){
694 CSRARC(fc, i + oPCR) = 0x8000007a;
695 }
696
697 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
698 CSRARC(fc, iPCR) = 0x803f0000;
699 for(i = 4 ; i < 0x7c/4 ; i+=4){
700 CSRARC(fc, i + iPCR) = 0x0;
701 }
702#endif
703
704
705#ifdef FW_VMACCESS
706 xfer = fw_xfer_alloc();
707 if(xfer == NULL) return;
708
709 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
710 if(fwb == NULL){
711 fw_xfer_free(xfer);
712 }
713 xfer->act.hand = fw_vmaccess;
714 xfer->act_type = FWACT_XFER;
715 xfer->fc = fc;
716 xfer->sc = NULL;
717
718 fwb->start_hi = 0x2;
719 fwb->start_lo = 0;
720 fwb->addrlen = 0xffffffff;
721 fwb->xfer = xfer;
722 fw_bindadd(fc, fwb);
723#endif
724}
725
726/*
727 * To lookup binded process from IEEE1394 address.
728 */
729struct fw_bind *
730fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo)
731{
732 struct fw_bind *tfw;
733 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ;
734 tfw = STAILQ_NEXT(tfw, fclist)){
735 if(tfw->xfer->act_type != FWACT_NULL &&
736 tfw->start_hi == dest_hi &&
737 tfw->start_lo <= dest_lo &&
738 (tfw->start_lo + tfw->addrlen) > dest_lo){
739 return(tfw);
740 }
741 }
742 return(NULL);
743}
744
745/*
746 * To bind IEEE1394 address block to process.
747 */
748int
749fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
750{
751 struct fw_bind *tfw, *tfw2 = NULL;
752 int err = 0;
753 tfw = STAILQ_FIRST(&fc->binds);
754 if(tfw == NULL){
755 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
756 goto out;
757 }
758 if((tfw->start_hi > fwb->start_hi) ||
759 (tfw->start_hi == fwb->start_hi &&
760 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){
761 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
762 goto out;
763 }
764 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){
765 if((tfw->start_hi < fwb->start_hi) ||
766 (tfw->start_hi == fwb->start_hi &&
767 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){
768 tfw2 = STAILQ_NEXT(tfw, fclist);
769 if(tfw2 == NULL)
770 break;
771 if((tfw2->start_hi > fwb->start_hi) ||
772 (tfw2->start_hi == fwb->start_hi &&
773 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){
774 break;
775 }else{
776 err = EBUSY;
777 goto out;
778 }
779 }
780 }
781 if(tfw != NULL){
782 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist);
783 }else{
784 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist);
785 }
786out:
787 if(!err && fwb->xfer->act_type == FWACT_CH){
788 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist);
789 }
790 return err;
791}
792
793/*
794 * To free IEEE1394 address block.
795 */
796int
797fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
798{
799 int s;
800
801 s = splfw();
802 /* shall we check the existance? */
803 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
804 splx(s);
805 if (fwb->xfer)
806 fw_xfer_free(fwb->xfer);
807
808 return 0;
809}
810
811/*
812 * To free transaction label.
813 */
814static void
815fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
816{
817 struct tlabel *tl;
818 int s = splfw();
819
820 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
821 tl = STAILQ_NEXT(tl, link)){
822 if(tl->xfer == xfer){
823 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
824 free(tl, M_FW);
825 splx(s);
826 return;
827 }
828 }
829 splx(s);
830 return;
831}
832
833/*
834 * To obtain XFER structure by transaction label.
835 */
836static struct fw_xfer *
837fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
838{
839 struct fw_xfer *xfer;
840 struct tlabel *tl;
841 int s = splfw();
842
843 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
844 tl = STAILQ_NEXT(tl, link)){
845 if(tl->xfer->dst == node){
846 xfer = tl->xfer;
847 splx(s);
848 if (firewire_debug > 2)
849 printf("fw_tl2xfer: found tl=%d\n", tlabel);
850 return(xfer);
851 }
852 }
853 if (firewire_debug > 1)
854 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
855 splx(s);
856 return(NULL);
857}
858
859/*
860 * To allocate IEEE1394 XFER structure.
861 */
862struct fw_xfer *
863fw_xfer_alloc(struct malloc_type *type)
864{
865 struct fw_xfer *xfer;
866
867 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
868 if (xfer == NULL)
869 return xfer;
870
871 microtime(&xfer->tv);
872 xfer->sub = -1;
873 xfer->malloc = type;
874
875 return xfer;
876}
877
878/*
879 * IEEE1394 XFER post process.
880 */
881void
882fw_xfer_done(struct fw_xfer *xfer)
883{
884 if (xfer->act.hand == NULL)
885 return;
886
887#if XFER_TIMEOUT
888 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch);
889#endif
890
891 if (xfer->fc->status != FWBUSRESET)
892 xfer->act.hand(xfer);
893 else {
894 printf("fw_xfer_done: pending\n");
895 if (xfer->fc != NULL)
896 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link);
897 else
898 panic("fw_xfer_done: why xfer->fc is NULL?");
899 }
900}
901
902/*
903 * To free IEEE1394 XFER structure.
904 */
905void
906fw_xfer_free( struct fw_xfer* xfer)
907{
908 int s;
909 if(xfer == NULL ) return;
910 if(xfer->state == FWXF_INQ){
911 printf("fw_xfer_free FWXF_INQ\n");
912 s = splfw();
913 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
914 xfer->q->queued --;
915 splx(s);
916 }
917 if(xfer->fc != NULL){
918 if(xfer->state == FWXF_START){
919#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */
920 printf("fw_xfer_free FWXF_START\n");
921#endif
922 s = splfw();
923 xfer->q->drain(xfer->fc, xfer);
924 splx(s);
925 }
926 }
927 if(xfer->send.buf != NULL){
928 free(xfer->send.buf, M_FW);
929 }
930 if(xfer->recv.buf != NULL){
931 free(xfer->recv.buf, M_FW);
932 }
933 if(xfer->fc != NULL){
934 fw_tl_free(xfer->fc, xfer);
935 }
936 free(xfer, xfer->malloc);
937}
938
939static void
940fw_asy_callback_free(struct fw_xfer *xfer)
941{
942#if 0
943 printf("asyreq done state=%d resp=%d\n",
944 xfer->state, xfer->resp);
945#endif
946 fw_xfer_free(xfer);
947}
948
949/*
950 * To configure PHY.
951 */
952static void
953fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
954{
955 struct fw_xfer *xfer;
956 struct fw_pkt *fp;
957
958 fc->status = FWBUSPHYCONF;
959
960#if 0
961 DELAY(100000);
962#endif
963 xfer = fw_xfer_alloc(M_FWXFER);
964 xfer->send.len = 12;
965 xfer->send.off = 0;
966 xfer->fc = fc;
967 xfer->retry_req = fw_asybusy;
968 xfer->act.hand = fw_asy_callback_free;
969
970 xfer->send.buf = malloc(sizeof(u_int32_t),
971 M_FW, M_NOWAIT | M_ZERO);
972 fp = (struct fw_pkt *)xfer->send.buf;
973 fp->mode.ld[1] = 0;
974 if (root_node >= 0)
975 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23);
976 if (gap_count >= 0)
977 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16);
978 fp->mode.ld[2] = ~fp->mode.ld[1];
979/* XXX Dangerous, how to pass PHY packet to device driver */
980 fp->mode.common.tcode |= FWTCODE_PHY;
981
982 if (firewire_debug)
983 printf("send phy_config root_node=%d gap_count=%d\n",
984 root_node, gap_count);
985 fw_asyreq(fc, -1, xfer);
986}
987
988#if 0
989/*
990 * Dump self ID.
991 */
992static void
993fw_print_sid(u_int32_t sid)
994{
995 union fw_self_id *s;
996 s = (union fw_self_id *) &sid;
997 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
998 " p0:%d p1:%d p2:%d i:%d m:%d\n",
999 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1000 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1001 s->p0.power_class, s->p0.port0, s->p0.port1,
1002 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1003}
1004#endif
1005
1006/*
1007 * To receive self ID.
1008 */
1009void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off)
1010{
1011 u_int32_t *p, *sid = (u_int32_t *)(buf + off);
1012 union fw_self_id *self_id;
1013 u_int i, j, node, c_port = 0, i_branch = 0;
1014
1015 fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
1016 fc->status = FWBUSINIT;
1017 fc->max_node = fc->nodeid & 0x3f;
1018 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
1019 fc->status = FWBUSCYMELECT;
1020 fc->topology_map->crc_len = 2;
1021 fc->topology_map->generation ++;
1022 fc->topology_map->self_id_count = 0;
1023 fc->topology_map->node_count = 0;
1024 fc->speed_map->generation ++;
1025 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1026 self_id = &fc->topology_map->self_id[0];
1027 for(i = 0; i < fc->sid_cnt; i ++){
1028 if (sid[1] != ~sid[0]) {
1029 printf("fw_sidrcv: invalid self-id packet\n");
1030 sid += 2;
1031 continue;
1032 }
1033 *self_id = *((union fw_self_id *)sid);
1034 fc->topology_map->crc_len++;
1035 if(self_id->p0.sequel == 0){
1036 fc->topology_map->node_count ++;
1037 c_port = 0;
1038#if 0
1039 fw_print_sid(sid[0]);
1040#endif
1041 node = self_id->p0.phy_id;
1042 if(fc->max_node < node){
1043 fc->max_node = self_id->p0.phy_id;
1044 }
1045 /* XXX I'm not sure this is the right speed_map */
1046 fc->speed_map->speed[node][node]
1047 = self_id->p0.phy_speed;
1048 for (j = 0; j < node; j ++) {
1049 fc->speed_map->speed[j][node]
1050 = fc->speed_map->speed[node][j]
1051 = min(fc->speed_map->speed[j][j],
1052 self_id->p0.phy_speed);
1053 }
1054 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1055 (self_id->p0.link_active && self_id->p0.contender)) {
1056 fc->irm = self_id->p0.phy_id;
1057 }
1058 if(self_id->p0.port0 >= 0x2){
1059 c_port++;
1060 }
1061 if(self_id->p0.port1 >= 0x2){
1062 c_port++;
1063 }
1064 if(self_id->p0.port2 >= 0x2){
1065 c_port++;
1066 }
1067 }
1068 if(c_port > 2){
1069 i_branch += (c_port - 2);
1070 }
1071 sid += 2;
1072 self_id++;
1073 fc->topology_map->self_id_count ++;
1074 }
1075 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1076 /* CRC */
1077 fc->topology_map->crc = fw_crc16(
1078 (u_int32_t *)&fc->topology_map->generation,
1079 fc->topology_map->crc_len * 4);
1080 fc->speed_map->crc = fw_crc16(
1081 (u_int32_t *)&fc->speed_map->generation,
1082 fc->speed_map->crc_len * 4);
1083 /* byteswap and copy to CSR */
1084 p = (u_int32_t *)fc->topology_map;
1085 for (i = 0; i <= fc->topology_map->crc_len; i++)
1086 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1087 p = (u_int32_t *)fc->speed_map;
1088 CSRARC(fc, SPED_MAP) = htonl(*p++);
1089 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1090 /* don't byte-swap u_int8_t array */
1091 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1092
1093 fc->max_hop = fc->max_node - i_branch;
1094#if 1
1095 printf(", maxhop <= %d", fc->max_hop);
1096#endif
1097
1098 if(fc->irm == -1 ){
1099 printf(", Not found IRM capable node");
1100 }else{
1101 printf(", cable IRM = %d", fc->irm);
1102 if (fc->irm == fc->nodeid)
1103 printf(" (me)");
1104 }
1105 printf("\n");
1106
1107 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1108 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) {
1109 fc->status = FWBUSMGRDONE;
1110 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1111 } else {
1112 fc->status = FWBUSMGRELECT;
1113 callout_reset(&fc->bmr_callout, hz/8,
1114 (void *)fw_try_bmr, (void *)fc);
1115 }
1116 } else {
1117 fc->status = FWBUSMGRDONE;
1118#if 0
1119 device_printf(fc->bdev, "BMR = %x\n",
1120 CSRARC(fc, BUS_MGR_ID));
1121#endif
1122 }
1123 free(buf, M_FW);
1124 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){
1125 /* I am BMGR */
1126 fw_bmr(fc);
1127 }
1128 callout_reset(&fc->busprobe_callout, hz/4,
1129 (void *)fw_bus_probe, (void *)fc);
1130}
1131
1132/*
1133 * To probe devices on the IEEE1394 bus.
1134 */
1135static void
1136fw_bus_probe(struct firewire_comm *fc)
1137{
1138 int s;
1139 struct fw_device *fwdev, *next;
1140
1141 s = splfw();
1142 fc->status = FWBUSEXPLORE;
1143 fc->retry_count = 0;
1144
1145/*
1146 * Invalidate all devices, just after bus reset. Devices
1147 * to be removed has not been seen longer time.
1148 */
1149 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1150 next = STAILQ_NEXT(fwdev, link);
1151 if (fwdev->status != FWDEVINVAL) {
1152 fwdev->status = FWDEVINVAL;
1153 fwdev->rcnt = 0;
1154 } else if(fwdev->rcnt < FW_MAXDEVRCNT) {
1155 fwdev->rcnt ++;
1156 } else {
1157 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link);
1158 free(fwdev, M_FW);
1159 }
1160 }
1161 fc->ongonode = 0;
1162 fc->ongoaddr = CSRROMOFF;
1163 fc->ongodev = NULL;
1164 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1165 fw_bus_explore(fc);
1166 splx(s);
1167}
1168
1169/*
1170 * To collect device informations on the IEEE1394 bus.
1171 */
1172static void
1173fw_bus_explore(struct firewire_comm *fc )
1174{
1175 int err = 0;
1176 struct fw_device *fwdev, *pfwdev, *tfwdev;
1177 u_int32_t addr;
1178 struct fw_xfer *xfer;
1179 struct fw_pkt *fp;
1180
1181 if(fc->status != FWBUSEXPLORE)
1182 return;
1183
1184loop:
1185 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1186
1187 if(fc->ongonode > fc->max_node) goto done;
1188 if(fc->ongonode >= 0x3f) goto done;
1189
1190 /* check link */
1191 /* XXX we need to check phy_id first */
1192 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
1193 if (firewire_debug)
1194 printf("node%d: link down\n", fc->ongonode);
1195 fc->ongonode++;
1196 goto loop;
1197 }
1198
1199 if(fc->ongoaddr <= CSRROMOFF &&
1200 fc->ongoeui.hi == 0xffffffff &&
1201 fc->ongoeui.lo == 0xffffffff ){
1202 fc->ongoaddr = CSRROMOFF;
1203 addr = 0xf0000000 | fc->ongoaddr;
1204 }else if(fc->ongoeui.hi == 0xffffffff ){
1205 fc->ongoaddr = CSRROMOFF + 0xc;
1206 addr = 0xf0000000 | fc->ongoaddr;
1207 }else if(fc->ongoeui.lo == 0xffffffff ){
1208 fc->ongoaddr = CSRROMOFF + 0x10;
1209 addr = 0xf0000000 | fc->ongoaddr;
1210 }else if(fc->ongodev == NULL){
1211 STAILQ_FOREACH(fwdev, &fc->devices, link)
1212 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1213 break;
1214 if(fwdev != NULL){
1215 fwdev->dst = fc->ongonode;
1216 fwdev->status = FWDEVATTACHED;
1217 fc->ongonode++;
1218 fc->ongoaddr = CSRROMOFF;
1219 fc->ongodev = NULL;
1220 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1221 goto loop;
1222 }
1223 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT);
1224 if(fwdev == NULL)
1225 return;
1226 fwdev->fc = fc;
1227 fwdev->rommax = 0;
1228 fwdev->dst = fc->ongonode;
1229 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1230 fwdev->status = FWDEVINIT;
1231#if 0
1232 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4)
1233 >> ((3 - (fc->ongonode % 4)) * 8);
1234#else
1235 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1236#endif
1237
1238 pfwdev = NULL;
1239 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1240 if (tfwdev->eui.hi > fwdev->eui.hi ||
1241 (tfwdev->eui.hi == fwdev->eui.hi &&
1242 tfwdev->eui.lo > fwdev->eui.lo))
1243 break;
1244 pfwdev = tfwdev;
1245 }
1246 if (pfwdev == NULL)
1247 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1248 else
1249 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1250
1251 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1252 linkspeed[fwdev->speed],
1253 fc->ongoeui.hi, fc->ongoeui.lo);
1254
1255 fc->ongodev = fwdev;
1256 fc->ongoaddr = CSRROMOFF;
1257 addr = 0xf0000000 | fc->ongoaddr;
1258 }else{
1259 addr = 0xf0000000 | fc->ongoaddr;
1260 }
1261#if 0
1262 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1263 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1264 fw_bus_explore_callback);
1265 if(xfer == NULL) goto done;
1266#else
1267 xfer = fw_xfer_alloc(M_FWXFER);
1268 if(xfer == NULL){
1269 goto done;
1270 }
1271 xfer->send.len = 16;
1272 xfer->spd = 0;
1273 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1274 if(xfer->send.buf == NULL){
1275 fw_xfer_free( xfer);
1276 return;
1277 }
1278
1279 xfer->send.off = 0;
1280 fp = (struct fw_pkt *)xfer->send.buf;
1281 fp->mode.rreqq.dest_hi = htons(0xffff);
1282 fp->mode.rreqq.tlrt = 0;
1283 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1284 fp->mode.rreqq.pri = 0;
1285 fp->mode.rreqq.src = 0;
1286 xfer->dst = FWLOCALBUS | fc->ongonode;
1287 fp->mode.rreqq.dst = htons(xfer->dst);
1288 fp->mode.rreqq.dest_lo = htonl(addr);
1289 xfer->act.hand = fw_bus_explore_callback;
1290
1291 if (firewire_debug)
1292 printf("node%d: explore addr=0x%x\n",
1293 fc->ongonode, fc->ongoaddr);
1294 err = fw_asyreq(fc, -1, xfer);
1295 if(err){
1296 fw_xfer_free( xfer);
1297 return;
1298 }
1299#endif
1300 return;
1301done:
1302 /* fw_attach_devs */
1303 fc->status = FWBUSEXPDONE;
1304 if (firewire_debug)
1305 printf("bus_explore done\n");
1306 fw_attach_dev(fc);
1307 return;
1308
1309}
1310
1311/* Portable Async. request read quad */
1312struct fw_xfer *
1313asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt,
1314 u_int32_t addr_hi, u_int32_t addr_lo,
1315 void (*hand) __P((struct fw_xfer*)))
1316{
1317 struct fw_xfer *xfer;
1318 struct fw_pkt *fp;
1319 int err;
1320
1321 xfer = fw_xfer_alloc(M_FWXFER);
1322 if(xfer == NULL){
1323 return NULL;
1324 }
1325 xfer->send.len = 16;
1326 xfer->spd = spd; /* XXX:min(spd, fc->spd) */
1327 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1328 if(xfer->send.buf == NULL){
1329 fw_xfer_free( xfer);
1330 return NULL;
1331 }
1332
1333 xfer->send.off = 0;
1334 fp = (struct fw_pkt *)xfer->send.buf;
1335 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff);
1336 if(tl & FWP_TL_VALID){
1337 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1338 }else{
1339 fp->mode.rreqq.tlrt = 0;
1340 }
1341 fp->mode.rreqq.tlrt |= rt & 0x3;
1342 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1343 fp->mode.rreqq.pri = 0;
1344 fp->mode.rreqq.src = 0;
1345 xfer->dst = addr_hi >> 16;
1346 fp->mode.rreqq.dst = htons(xfer->dst);
1347 fp->mode.rreqq.dest_lo = htonl(addr_lo);
1348 xfer->act.hand = hand;
1349
1350 err = fw_asyreq(fc, -1, xfer);
1351 if(err){
1352 fw_xfer_free( xfer);
1353 return NULL;
1354 }
1355 return xfer;
1356}
1357
1358/*
1359 * Callback for the IEEE1394 bus information collection.
1360 */
1361static void
1362fw_bus_explore_callback(struct fw_xfer *xfer)
1363{
1364 struct firewire_comm *fc;
1365 struct fw_pkt *sfp,*rfp;
1366 struct csrhdr *chdr;
1367 struct csrdir *csrd;
1368 struct csrreg *csrreg;
1369 u_int32_t offset;
1370
1371
1372 if(xfer == NULL) {
1373 printf("xfer == NULL\n");
1374 return;
1375 }
1376 fc = xfer->fc;
1377
1378 if (firewire_debug)
1379 printf("node%d: callback addr=0x%x\n",
1380 fc->ongonode, fc->ongoaddr);
1381
1382 if(xfer->resp != 0){
1383 printf("node%d: resp=%d addr=0x%x\n",
1384 fc->ongonode, xfer->resp, fc->ongoaddr);
1385 fc->retry_count++;
1386 goto nextnode;
1387 }
1388
1389 if(xfer->send.buf == NULL){
1390 printf("node%d: send.buf=NULL addr=0x%x\n",
1391 fc->ongonode, fc->ongoaddr);
1392 fc->retry_count++;
1393 goto nextnode;
1394 }
1395 sfp = (struct fw_pkt *)xfer->send.buf;
1396
1397 if(xfer->recv.buf == NULL){
1398 printf("node%d: recv.buf=NULL addr=0x%x\n",
1399 fc->ongonode, fc->ongoaddr);
1400 fc->retry_count++;
1401 goto nextnode;
1402 }
1403 rfp = (struct fw_pkt *)xfer->recv.buf;
1404#if 0
1405 {
1406 u_int32_t *qld;
1407 int i;
1408 qld = (u_int32_t *)xfer->recv.buf;
1409 printf("len:%d\n", xfer->recv.len);
1410 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1411 printf("0x%08x ", ntohl(rfp->mode.ld[i/4]));
1412 if((i % 16) == 15) printf("\n");
1413 }
1414 if((i % 16) != 15) printf("\n");
1415 }
1416#endif
1417 if(fc->ongodev == NULL){
1418 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){
1419 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1420 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1421/* If CSR is minimal confinguration, more investgation is not needed. */
1422 if(chdr->info_len == 1){
1423 if (firewire_debug)
1424 printf("node%d: minimal config\n",
1425 fc->ongonode);
1426 goto nextnode;
1427 }else{
1428 fc->ongoaddr = CSRROMOFF + 0xc;
1429 }
1430 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){
1431 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1432 fc->ongoaddr = CSRROMOFF + 0x10;
1433 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){
1434 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1435 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1436 if (firewire_debug)
1437 printf("node%d: eui64 is zero.\n",
1438 fc->ongonode);
1439 goto nextnode;
1440 }
1441 fc->ongoaddr = CSRROMOFF;
1442 }
1443 }else{
1444 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1445 if(fc->ongoaddr > fc->ongodev->rommax){
1446 fc->ongodev->rommax = fc->ongoaddr;
1447 }
1448 csrd = SLIST_FIRST(&fc->ongocsr);
1449 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1450 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1451 offset = CSRROMOFF;
1452 }else{
1453 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1454 offset = csrd->off;
1455 }
1456 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1457 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1458 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1459 csrd = SLIST_FIRST(&fc->csrfree);
1460 if(csrd == NULL){
1461 goto nextnode;
1462 }else{
1463 csrd->ongoaddr = fc->ongoaddr;
1464 fc->ongoaddr += csrreg->val * 4;
1465 csrd->off = fc->ongoaddr;
1466 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1467 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1468 goto nextaddr;
1469 }
1470 }
1471 }
1472 fc->ongoaddr += 4;
1473 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1474 (fc->ongodev->rommax < 0x414)){
1475 if(fc->ongodev->rommax <= 0x414){
1476 csrd = SLIST_FIRST(&fc->csrfree);
1477 if(csrd == NULL) goto nextnode;
1478 csrd->off = fc->ongoaddr;
1479 csrd->ongoaddr = fc->ongoaddr;
1480 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1481 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1482 }
1483 goto nextaddr;
1484 }
1485
1486 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1487 if(csrd == NULL){
1488 goto nextnode;
1489 };
1490 fc->ongoaddr = csrd->ongoaddr + 4;
1491 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1492 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1493 csrd = SLIST_FIRST(&fc->ongocsr);
1494 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1495 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1496 offset = CSRROMOFF;
1497 }else{
1498 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1499 offset = csrd->off;
1500 }
1501 }
1502 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1503 goto nextnode;
1504 }
1505 }
1506nextaddr:
1507 fw_xfer_free( xfer);
1508 fw_bus_explore(fc);
1509 return;
1510nextnode:
1511 fw_xfer_free( xfer);
1512 fc->ongonode++;
1513/* housekeeping work space */
1514 fc->ongoaddr = CSRROMOFF;
1515 fc->ongodev = NULL;
1516 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1517 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1518 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1519 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1520 }
1521 fw_bus_explore(fc);
1522 return;
1523}
1524
1525/*
1526 * To obtain CSR register values.
1527 */
1528u_int32_t
1529getcsrdata(struct fw_device *fwdev, u_int8_t key)
1530{
1531 int i;
1532 struct csrhdr *chdr;
1533 struct csrreg *creg;
1534 chdr = (struct csrhdr *)&fwdev->csrrom[0];
1535 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){
1536 creg = (struct csrreg *)&fwdev->csrrom[i/4];
1537 if(creg->key == key){
1538 return (u_int32_t)creg->val;
1539 }
1540 }
1541 return 0;
1542}
1543
1544/*
1545 * To attach sub-devices layer onto IEEE1394 bus.
1546 */
1547static void
1548fw_attach_dev(struct firewire_comm *fc)
1549{
1550 struct fw_device *fwdev;
1551 struct fw_xfer *xfer;
1552 int i, err;
1553 device_t *devlistp;
1554 int devcnt;
1555 struct firewire_dev_comm *fdc;
1556 u_int32_t spec, ver;
1557
1558 STAILQ_FOREACH(fwdev, &fc->devices, link) {
1559 if(fwdev->status == FWDEVINIT){
1560 spec = getcsrdata(fwdev, CSRKEY_SPEC);
1561 if(spec == 0)
1562 continue;
1563 ver = getcsrdata(fwdev, CSRKEY_VER);
1564 if(ver == 0)
1565 continue;
1566 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf;
1567
1568 device_printf(fc->bdev, "Device ");
1569 switch(spec){
1570 case CSRVAL_ANSIT10:
1571 switch(ver){
1572 case CSRVAL_T10SBP2:
1573 printf("SBP-II");
1574 break;
1575 default:
1576 break;
1577 }
1578 break;
1579 case CSRVAL_1394TA:
1580 switch(ver){
1581 case CSR_PROTAVC:
1582 printf("AV/C");
1583 break;
1584 case CSR_PROTCAL:
1585 printf("CAL");
1586 break;
1587 case CSR_PROTEHS:
1588 printf("EHS");
1589 break;
1590 case CSR_PROTHAVI:
1591 printf("HAVi");
1592 break;
1593 case CSR_PROTCAM104:
1594 printf("1394 Cam 1.04");
1595 break;
1596 case CSR_PROTCAM120:
1597 printf("1394 Cam 1.20");
1598 break;
1599 case CSR_PROTCAM130:
1600 printf("1394 Cam 1.30");
1601 break;
1602 case CSR_PROTDPP:
1603 printf("1394 Direct print");
1604 break;
1605 case CSR_PROTIICP:
1606 printf("Industrial & Instrument");
1607 break;
1608 default:
1609 printf("unknown 1394TA");
1610 break;
1611 }
1612 break;
1613 default:
1614 printf("unknown spec");
1615 break;
1616 }
1617 fwdev->status = FWDEVATTACHED;
1618 printf("\n");
1619 }
1620 }
1621 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1622 if( err != 0 )
1623 return;
1624 for( i = 0 ; i < devcnt ; i++){
1625 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1626 fdc = device_get_softc(devlistp[i]);
1627 if (fdc->post_explore != NULL)
1628 fdc->post_explore(fdc);
1629 }
1630 }
1631 free(devlistp, M_TEMP);
1632
1633 /* call pending handlers */
1634 i = 0;
1635 while ((xfer = STAILQ_FIRST(&fc->pending))) {
1636 STAILQ_REMOVE_HEAD(&fc->pending, link);
1637 i++;
1638 if (xfer->act.hand)
1639 xfer->act.hand(xfer);
1640 }
1641 if (i > 0)
1642 printf("fw_attach_dev: %d pending handlers called\n", i);
1643 if (fc->retry_count > 0) {
1644 printf("retry_count = %d\n", fc->retry_count);
1645 callout_reset(&fc->retry_probe_callout, hz*2,
1646 (void *)fc->ibr, (void *)fc);
1647 }
1648 return;
1649}
1650
1651/*
1652 * To allocate uniq transaction label.
1653 */
1654static int
1655fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1656{
1657 u_int i;
1658 struct tlabel *tl, *tmptl;
1659 int s;
1660 static u_int32_t label = 0;
1661
1662 s = splfw();
1663 for( i = 0 ; i < 0x40 ; i ++){
1664 label = (label + 1) & 0x3f;
1665 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1666 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1667 if(tmptl->xfer->dst == xfer->dst) break;
1668 }
1669 if(tmptl == NULL) {
1670 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT);
1671 if (tl == NULL) {
1672 splx(s);
1673 return (-1);
1674 }
1675 tl->xfer = xfer;
1676 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1677 splx(s);
1678 if (firewire_debug > 1)
1679 printf("fw_get_tlabel: dst=%d tl=%d\n",
1680 xfer->dst, label);
1681 return(label);
1682 }
1683 }
1684 splx(s);
1685
1686 printf("fw_get_tlabel: no free tlabel\n");
1687 return(-1);
1688}
1689
1690/*
1691 * Generic packet receving process.
1692 */
1693void
1694fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd)
1695{
1696 struct fw_pkt *fp, *resfp;
1697 struct fw_xfer *xfer;
1698 struct fw_bind *bind;
1699 struct firewire_softc *sc;
1700 int s;
1701#if 0
1702 {
1703 u_int32_t *qld;
1704 int i;
1705 qld = (u_int32_t *)buf;
1706 printf("spd %d len:%d\n", spd, len);
1707 for( i = 0 ; i <= len && i < 32; i+= 4){
1708 printf("0x%08x ", ntohl(qld[i/4]));
1709 if((i % 16) == 15) printf("\n");
1710 }
1711 if((i % 16) != 15) printf("\n");
1712 }
1713#endif
1714 fp = (struct fw_pkt *)(buf + off);
1715 switch(fp->mode.common.tcode){
1716 case FWTCODE_WRES:
1717 case FWTCODE_RRESQ:
1718 case FWTCODE_RRESB:
1719 case FWTCODE_LRES:
1720 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
1721 fp->mode.hdr.tlrt >> 2);
1722 if(xfer == NULL) {
1723 printf("fw_rcv: unknown response "
1724 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n",
1725 fp->mode.common.tcode,
1726 ntohs(fp->mode.hdr.src),
1727 fp->mode.hdr.tlrt >> 2,
1728 fp->mode.hdr.tlrt & 3,
1729 fp->mode.rresq.data);
1730#if 1
1731 printf("try ad-hoc work around!!\n");
1732 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
1733 (fp->mode.hdr.tlrt >> 2)^3);
1734 if (xfer == NULL) {
1735 printf("no use...\n");
1736 goto err;
1737 }
1738#else
1739 goto err;
1740#endif
1741 }
1742 switch(xfer->act_type){
1743 case FWACT_XFER:
1744 if((xfer->sub >= 0) &&
1745 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){
1746 xfer->resp = EINVAL;
1747 fw_xfer_done(xfer);
1748 goto err;
1749 }
1750 xfer->recv.len = len;
1751 xfer->recv.off = off;
1752 xfer->recv.buf = buf;
1753 xfer->resp = 0;
1754 fw_xfer_done(xfer);
1755 return;
1756 break;
1757 case FWACT_CH:
1758 default:
1759 goto err;
1760 break;
1761 }
1762 break;
1763 case FWTCODE_WREQQ:
1764 case FWTCODE_WREQB:
1765 case FWTCODE_RREQQ:
1766 case FWTCODE_RREQB:
1767 case FWTCODE_LREQ:
1768 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi),
1769 ntohl(fp->mode.rreqq.dest_lo));
1770 if(bind == NULL){
1771#if __FreeBSD_version >= 500000
1772 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n",
1773#else
1774 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n",
1775#endif
1776 ntohs(fp->mode.rreqq.dest_hi),
1777 ntohl(fp->mode.rreqq.dest_lo),
1778 fp->mode.common.tcode);
1779 if (fc->status == FWBUSRESET) {
1780 printf("fw_rcv: cannot respond(bus reset)!\n");
1781 goto err;
1782 }
1783 xfer = fw_xfer_alloc(M_FWXFER);
1784 if(xfer == NULL){
1785 return;
1786 }
1787 xfer->spd = spd;
1788 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
1789 resfp = (struct fw_pkt *)xfer->send.buf;
1790 switch(fp->mode.common.tcode){
1791 case FWTCODE_WREQQ:
1792 case FWTCODE_WREQB:
1793 resfp->mode.hdr.tcode = FWTCODE_WRES;
1794 xfer->send.len = 12;
1795 break;
1796 case FWTCODE_RREQQ:
1797 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1798 xfer->send.len = 16;
1799 break;
1800 case FWTCODE_RREQB:
1801 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1802 xfer->send.len = 16;
1803 break;
1804 case FWTCODE_LREQ:
1805 resfp->mode.hdr.tcode = FWTCODE_LRES;
1806 xfer->send.len = 16;
1807 break;
1808 }
1809 resfp->mode.hdr.dst = fp->mode.hdr.src;
1810 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1811 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1812 resfp->mode.rresb.rtcode = 7;
1813 resfp->mode.rresb.extcode = 0;
1814 resfp->mode.rresb.len = 0;
1815/*
1816 xfer->act.hand = fw_asy_callback;
1817*/
1818 xfer->act.hand = fw_xfer_free;
1819 if(fw_asyreq(fc, -1, xfer)){
1820 fw_xfer_free( xfer);
1821 return;
1822 }
1823 goto err;
1824 }
1825 switch(bind->xfer->act_type){
1826 case FWACT_XFER:
1827 xfer = fw_xfer_alloc(M_FWXFER);
1828 if(xfer == NULL) goto err;
1829 xfer->fc = bind->xfer->fc;
1830 xfer->sc = bind->xfer->sc;
1831 xfer->recv.buf = buf;
1832 xfer->recv.len = len;
1833 xfer->recv.off = off;
1834 xfer->spd = spd;
1835 xfer->act.hand = bind->xfer->act.hand;
1836 if (fc->status != FWBUSRESET)
1837 xfer->act.hand(xfer);
1838 else
1839 STAILQ_INSERT_TAIL(&fc->pending, xfer, link);
1840 return;
1841 break;
1842 case FWACT_CH:
1843 if(fc->ir[bind->xfer->sub]->queued >=
1844 fc->ir[bind->xfer->sub]->maxq){
1845 device_printf(fc->bdev,
1846 "Discard a packet %x %d\n",
1847 bind->xfer->sub,
1848 fc->ir[bind->xfer->sub]->queued);
1849 goto err;
1850 }
1851 xfer = fw_xfer_alloc(M_FWXFER);
1852 if(xfer == NULL) goto err;
1853 xfer->recv.buf = buf;
1854 xfer->recv.len = len;
1855 xfer->recv.off = off;
1856 xfer->spd = spd;
1857 s = splfw();
1858 fc->ir[bind->xfer->sub]->queued++;
1859 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link);
1860 splx(s);
1861
1862 wakeup((caddr_t)fc->ir[bind->xfer->sub]);
1863
1864 return;
1865 break;
1866 default:
1867 goto err;
1868 break;
1869 }
1870 break;
1871 case FWTCODE_STREAM:
1872 {
1873 struct fw_xferq *xferq;
1874
1875 xferq = fc->ir[sub];
1876#if 0
1877 printf("stream rcv dma %d len %d off %d spd %d\n",
1878 sub, len, off, spd);
1879#endif
1880 if(xferq->queued >= xferq->maxq) {
1881 printf("receive queue is full\n");
1882 goto err;
1883 }
1884 xfer = fw_xfer_alloc(M_FWXFER);
1885 if(xfer == NULL) goto err;
1886 xfer->recv.buf = buf;
1887 xfer->recv.len = len;
1888 xfer->recv.off = off;
1889 xfer->spd = spd;
1890 s = splfw();
1891 xferq->queued++;
1892 STAILQ_INSERT_TAIL(&xferq->q, xfer, link);
1893 splx(s);
1894 sc = device_get_softc(fc->bdev);
1895#if __FreeBSD_version >= 500000
1896 if (SEL_WAITING(&xferq->rsel))
1897#else
1898 if (&xferq->rsel.si_pid != 0)
1899#endif
1900 selwakeup(&xferq->rsel);
1901 if (xferq->flag & FWXFERQ_WAKEUP) {
1902 xferq->flag &= ~FWXFERQ_WAKEUP;
1903 wakeup((caddr_t)xferq);
1904 }
1905 if (xferq->flag & FWXFERQ_HANDLER) {
1906 xferq->hand(xferq);
1907 }
1908 return;
1909 break;
1910 }
1911 default:
1912 printf("fw_rcv: unknow tcode\n");
1913 break;
1914 }
1915err:
1916 free(buf, M_FW);
1917}
1918
1919/*
1920 * Post process for Bus Manager election process.
1921 */
1922static void
1923fw_try_bmr_callback(struct fw_xfer *xfer)
1924{
1925 struct fw_pkt *rfp;
1926 struct firewire_comm *fc;
1927 int bmr;
1928
1929 if (xfer == NULL)
1930 return;
1931 fc = xfer->fc;
1932 if (xfer->resp != 0)
1933 goto error;
1934 if (xfer->send.buf == NULL)
1935 goto error;
1936 if (xfer->recv.buf == NULL)
1937 goto error;
1938 rfp = (struct fw_pkt *)xfer->recv.buf;
1939 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE)
1940 goto error;
1941
1942 bmr = ntohl(rfp->mode.lres.payload[0]);
1943 if (bmr == 0x3f)
1944 bmr = fc->nodeid;
1945
1946 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
1947 device_printf(fc->bdev, "new bus manager %d ",
1948 CSRARC(fc, BUS_MGR_ID));
1949 if(bmr == fc->nodeid){
1950 printf("(me)\n");
1951 fw_bmr(fc);
1952 }else{
1953 printf("\n");
1954 }
1955error:
1956 fw_xfer_free(xfer);
1957}
1958
1959/*
1960 * To candidate Bus Manager election process.
1961 */
1962static void
1963fw_try_bmr(void *arg)
1964{
1965 struct fw_xfer *xfer;
1966 struct firewire_comm *fc = (struct firewire_comm *)arg;
1967 struct fw_pkt *fp;
1968 int err = 0;
1969
1970 xfer = fw_xfer_alloc(M_FWXFER);
1971 if(xfer == NULL){
1972 return;
1973 }
1974 xfer->send.len = 24;
1975 xfer->spd = 0;
1976 xfer->send.buf = malloc(24, M_FW, M_NOWAIT);
1977 if(xfer->send.buf == NULL){
1978 fw_xfer_free( xfer);
1979 return;
1980 }
1981
1982 fc->status = FWBUSMGRELECT;
1983
1984 xfer->send.off = 0;
1985 fp = (struct fw_pkt *)xfer->send.buf;
1986 fp->mode.lreq.dest_hi = htons(0xffff);
1987 fp->mode.lreq.tlrt = 0;
1988 fp->mode.lreq.tcode = FWTCODE_LREQ;
1989 fp->mode.lreq.pri = 0;
1990 fp->mode.lreq.src = 0;
1991 fp->mode.lreq.len = htons(8);
1992 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP);
1993 xfer->dst = FWLOCALBUS | fc->irm;
1994 fp->mode.lreq.dst = htons(xfer->dst);
1995 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID);
1996 fp->mode.lreq.payload[0] = htonl(0x3f);
1997 fp->mode.lreq.payload[1] = htonl(fc->nodeid);
1998 xfer->act_type = FWACT_XFER;
1999 xfer->act.hand = fw_try_bmr_callback;
2000
2001 err = fw_asyreq(fc, -1, xfer);
2002 if(err){
2003 fw_xfer_free( xfer);
2004 return;
2005 }
2006 return;
2007}
2008
2009#ifdef FW_VMACCESS
2010/*
2011 * Software implementation for physical memory block access.
2012 * XXX:Too slow, usef for debug purpose only.
2013 */
2014static void
2015fw_vmaccess(struct fw_xfer *xfer){
2016 struct fw_pkt *rfp, *sfp = NULL;
2017 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off);
2018
2019 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n",
2020 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2021 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2022 if(xfer->resp != 0){
2023 fw_xfer_free( xfer);
2024 return;
2025 }
2026 if(xfer->recv.buf == NULL){
2027 fw_xfer_free( xfer);
2028 return;
2029 }
2030 rfp = (struct fw_pkt *)xfer->recv.buf;
2031 switch(rfp->mode.hdr.tcode){
2032 /* XXX need fix for 64bit arch */
2033 case FWTCODE_WREQB:
2034 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2035 xfer->send.len = 12;
2036 sfp = (struct fw_pkt *)xfer->send.buf;
2037 bcopy(rfp->mode.wreqb.payload,
2038 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2039 sfp->mode.wres.tcode = FWTCODE_WRES;
2040 sfp->mode.wres.rtcode = 0;
2041 break;
2042 case FWTCODE_WREQQ:
2043 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2044 xfer->send.len = 12;
2045 sfp->mode.wres.tcode = FWTCODE_WRES;
2046 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2047 sfp->mode.wres.rtcode = 0;
2048 break;
2049 case FWTCODE_RREQB:
2050 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2051 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2052 sfp = (struct fw_pkt *)xfer->send.buf;
2053 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2054 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
2055 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2056 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2057 sfp->mode.rresb.rtcode = 0;
2058 sfp->mode.rresb.extcode = 0;
2059 break;
2060 case FWTCODE_RREQQ:
2061 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2062 xfer->send.len = 16;
2063 sfp = (struct fw_pkt *)xfer->send.buf;
2064 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2065 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2066 sfp->mode.rresb.rtcode = 0;
2067 break;
2068 default:
2069 fw_xfer_free( xfer);
2070 return;
2071 }
2072 xfer->send.off = 0;
2073 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2074 xfer->dst = ntohs(rfp->mode.hdr.src);
2075 xfer->act.hand = fw_xfer_free;
2076 xfer->retry_req = fw_asybusy;
2077
2078 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2079 sfp->mode.hdr.pri = 0;
2080
2081 fw_asyreq(xfer->fc, -1, xfer);
2082/**/
2083 return;
2084}
2085#endif
2086
2087/*
2088 * CRC16 check-sum for IEEE1394 register blocks.
2089 */
2090u_int16_t
2091fw_crc16(u_int32_t *ptr, u_int32_t len){
2092 u_int32_t i, sum, crc = 0;
2093 int shift;
2094 len = (len + 3) & ~3;
2095 for(i = 0 ; i < len ; i+= 4){
2096 for( shift = 28 ; shift >= 0 ; shift -= 4){
2097 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2098 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2099 }
2100 crc &= 0xffff;
2101 }
2102 return((u_int16_t) crc);
2103}
2104
2105static int
2106fw_bmr(struct firewire_comm *fc)
2107{
2108 struct fw_device fwdev;
2109 int cmstr;
2110
2111 /* XXX Assume that the current root node is cycle master capable */
2112 cmstr = fc->max_node;
2113 /* If I am the bus manager, optimize gapcount */
2114 if(fc->max_hop <= MAX_GAPHOP ){
2115 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1,
2116 gap_cnt[fc->max_hop]);
2117 }
2118 /* If we are the cycle master, nothing to do */
2119 if (cmstr == fc->nodeid)
2120 return 0;
2121 /* Bus probe has not finished, make dummy fwdev for cmstr */
2122 bzero(&fwdev, sizeof(fwdev));
2123 fwdev.fc = fc;
2124 fwdev.dst = cmstr;
2125 fwdev.speed = 0;
2126 fwdev.maxrec = 8; /* 512 */
2127 fwdev.status = FWDEVINIT;
2128 /* Set cmstr bit on the cycle master */
2129 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2130 0xffff, 0xf0000000 | STATE_SET, 1 << 16,
2131 fw_asy_callback_free);
2132
2133 return 0;
2134}
2135
2136DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0);
2137MODULE_VERSION(firewire, 1);