1/*
2 * Copyright (c) 2003 Hidetoshi Shimokawa
3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the acknowledgement as bellow:
16 *
17 * This product includes software developed by K. Kobayashi and H. Shimokawa
18 *
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 *
34 * $FreeBSD: head/sys/dev/firewire/firewire.c 117716 2003-07-18 05:28:30Z simokawa $
35 *
36 */
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/types.h>
41#include <sys/mbuf.h>
42#include <sys/socket.h>
43#include <sys/socketvar.h>
44
45#include <sys/kernel.h>
46#include <sys/malloc.h>
47#include <sys/conf.h>
48#include <sys/sysctl.h>
49
50#if __FreeBSD_version < 500000
51#include <machine/clock.h> /* for DELAY() */
52#endif
53
54#include <sys/bus.h> /* used by smbus and newbus */
55#include <machine/bus.h>
56
57#include <dev/firewire/firewire.h>
58#include <dev/firewire/firewirereg.h>
59#include <dev/firewire/fwmem.h>
60#include <dev/firewire/iec13213.h>
61#include <dev/firewire/iec68113.h>
62
63struct crom_src_buf {
64 struct crom_src src;
65 struct crom_chunk root;
66 struct crom_chunk vendor;
67 struct crom_chunk hw;
68};
69
70int firewire_debug=0, try_bmr=1;
71SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
72 "FireWire driver debug flag");
73SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
74SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
75 "Try to be a bus manager");
76
77MALLOC_DEFINE(M_FW, "firewire", "FireWire");
78MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
79
80#define FW_MAXASYRTY 4
81#define FW_MAXDEVRCNT 4
82
83devclass_t firewire_devclass;
84
85static int firewire_match __P((device_t));
86static int firewire_attach __P((device_t));
87static int firewire_detach __P((device_t));
88static int firewire_resume __P((device_t));
89#if 0
90static int firewire_shutdown __P((device_t));
91#endif
92static device_t firewire_add_child __P((device_t, int, const char *, int));
93static void fw_try_bmr __P((void *));
94static void fw_try_bmr_callback __P((struct fw_xfer *));
95static void fw_asystart __P((struct fw_xfer *));
96static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *));
97static void fw_bus_probe __P((struct firewire_comm *));
98static void fw_bus_explore __P((struct firewire_comm *));
99static void fw_bus_explore_callback __P((struct fw_xfer *));
100static void fw_attach_dev __P((struct firewire_comm *));
101#ifdef FW_VMACCESS
102static void fw_vmaccess __P((struct fw_xfer *));
103#endif
104struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t,
105 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *))));
106static int fw_bmr __P((struct firewire_comm *));
107
108static device_method_t firewire_methods[] = {
109 /* Device interface */
110 DEVMETHOD(device_probe, firewire_match),
111 DEVMETHOD(device_attach, firewire_attach),
112 DEVMETHOD(device_detach, firewire_detach),
113 DEVMETHOD(device_suspend, bus_generic_suspend),
114 DEVMETHOD(device_resume, firewire_resume),
115 DEVMETHOD(device_shutdown, bus_generic_shutdown),
116
117 /* Bus interface */
118 DEVMETHOD(bus_add_child, firewire_add_child),
119 DEVMETHOD(bus_print_child, bus_generic_print_child),
120
121 { 0, 0 }
122};
123char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"};
124
125/* IEEE-1394a Table C-2 Gap count as a function of hops*/
126#define MAX_GAPHOP 15
127u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
128 21, 24, 26, 29, 32, 35, 37, 40};
129
130extern struct cdevsw firewire_cdevsw;
131
132static driver_t firewire_driver = {
133 "firewire",
134 firewire_methods,
135 sizeof(struct firewire_softc),
136};
137
138/*
139 * Lookup fwdev by node id.
140 */
141struct fw_device *
142fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
143{
144 struct fw_device *fwdev;
145 int s;
146
147 s = splfw();
148 STAILQ_FOREACH(fwdev, &fc->devices, link)
149 if (fwdev->dst == dst)
150 break;
151 splx(s);
152
153 if(fwdev == NULL) return NULL;
154 if(fwdev->status == FWDEVINVAL) return NULL;
155 return fwdev;
156}
157
158/*
159 * Lookup fwdev by EUI64.
160 */
161struct fw_device *
162fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
163{
164 struct fw_device *fwdev;
165 int s;
166
167 s = splfw();
168 STAILQ_FOREACH(fwdev, &fc->devices, link)
169 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
170 break;
171 splx(s);
172
173 if(fwdev == NULL) return NULL;
174 if(fwdev->status == FWDEVINVAL) return NULL;
175 return fwdev;
176}
177
178/*
179 * Async. request procedure for userland application.
180 */
181int
182fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
183{
184 int err = 0;
185 struct fw_xferq *xferq;
186 int tl = 0, len;
187 struct fw_pkt *fp;
188 int tcode;
189 struct tcode_info *info;
190
191 if(xfer == NULL) return EINVAL;
192 if(xfer->send.len > MAXREC(fc->maxrec)){
193 printf("send.len > maxrec\n");
194 return EINVAL;
195 }
196 if(xfer->act.hand == NULL){
197 printf("act.hand == NULL\n");
198 return EINVAL;
199 }
200 fp = (struct fw_pkt *)xfer->send.buf;
201
202 tcode = fp->mode.common.tcode & 0xf;
203 info = &fc->tcode[tcode];
204 if (info->flag == 0) {
205 printf("invalid tcode=%d\n", tcode);
206 return EINVAL;
207 }
208 if (info->flag & FWTI_REQ)
209 xferq = fc->atq;
210 else
211 xferq = fc->ats;
212 len = info->hdr_len;
213 if (info->flag & FWTI_BLOCK_STR)
214 len += fp->mode.stream.len;
215 else if (info->flag & FWTI_BLOCK_ASY)
216 len += fp->mode.rresb.len;
217 if( len > xfer->send.len ){
218 printf("len(%d) > send.len(%d) (tcode=%d)\n",
219 len, xfer->send.len, tcode);
220 return EINVAL;
221 }
222 xfer->send.len = len;
223
224 if(xferq->start == NULL){
225 printf("xferq->start == NULL\n");
226 return EINVAL;
227 }
228 if(!(xferq->queued < xferq->maxq)){
229 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
230 xferq->queued);
231 return EINVAL;
232 }
233
234
235 if (info->flag & FWTI_TLABEL) {
236 if((tl = fw_get_tlabel(fc, xfer)) == -1 )
237 return EIO;
238 fp->mode.hdr.tlrt = tl << 2;
239 }
240
241 xfer->tl = tl;
242 xfer->resp = 0;
243 xfer->fc = fc;
244 xfer->q = xferq;
245 xfer->retry_req = fw_asybusy;
246
247 fw_asystart(xfer);
248 return err;
249}
250/*
251 * Wakeup blocked process.
252 */
253void
254fw_asy_callback(struct fw_xfer *xfer){
255 wakeup(xfer);
256 return;
257}
258/*
259 * Postpone to later retry.
260 */
261void fw_asybusy(struct fw_xfer *xfer){
262 printf("fw_asybusy\n");
263/*
264 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
265*/
266 DELAY(20000);
267 fw_asystart(xfer);
268 return;
269}
270
271/*
272 * Async. request with given xfer structure.
273 */
274static void
275fw_asystart(struct fw_xfer *xfer)
276{
277 struct firewire_comm *fc = xfer->fc;
278 int s;
279 if(xfer->retry++ >= fc->max_asyretry){
280 device_printf(fc->bdev, "max_asyretry exceeded\n");
281 xfer->resp = EBUSY;
282 xfer->state = FWXF_BUSY;
283 xfer->act.hand(xfer);
284 return;
285 }
286#if 0 /* XXX allow bus explore packets only after bus rest */
287 if (fc->status < FWBUSEXPLORE) {
288 xfer->resp = EAGAIN;
289 xfer->state = FWXF_BUSY;
290 if (xfer->act.hand != NULL)
291 xfer->act.hand(xfer);
292 return;
293 }
294#endif
295 s = splfw();
296 xfer->state = FWXF_INQ;
297 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
298 xfer->q->queued ++;
299 splx(s);
300 /* XXX just queue for mbuf */
301 if (xfer->mbuf == NULL)
302 xfer->q->start(fc);
303 return;
304}
305
306static int
307firewire_match( device_t dev )
308{
309 device_set_desc(dev, "IEEE1394(FireWire) bus");
310 return -140;
311}
312
313static void
314firewire_xfer_timeout(struct firewire_comm *fc)
315{
316 struct fw_xfer *xfer;
317 struct tlabel *tl;
318 struct timeval tv;
319 struct timeval split_timeout;
320 int i, s;
321
322 split_timeout.tv_sec = 6;
323 split_timeout.tv_usec = 0;
324
325 microtime(&tv);
326 timevalsub(&tv, &split_timeout);
327
328 s = splfw();
329 for (i = 0; i < 0x40; i ++) {
330 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
331 xfer = tl->xfer;
332 if (timevalcmp(&xfer->tv, &tv, >))
333 /* the rests are newer than this */
334 break;
335 device_printf(fc->bdev,
336 "split transaction timeout dst=0x%x tl=0x%x state=%d\n",
337 xfer->dst, i, xfer->state);
338 xfer->resp = ETIMEDOUT;
339 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
340 fw_xfer_done(xfer);
341 }
342 }
343 splx(s);
344}
345
346static void
347firewire_watchdog(void *arg)
348{
349 struct firewire_comm *fc;
350
351 fc = (struct firewire_comm *)arg;
352 firewire_xfer_timeout(fc);
353 fc->timeout(fc);
354 callout_reset(&fc->timeout_callout, hz,
355 (void *)firewire_watchdog, (void *)fc);
356}
357
358/*
359 * The attach routine.
360 */
361static int
362firewire_attach( device_t dev )
363{
364 int i, unitmask, mn;
365 struct firewire_softc *sc = device_get_softc(dev);
366 device_t pa = device_get_parent(dev);
367 struct firewire_comm *fc;
368 dev_t d;
369
370 fc = (struct firewire_comm *)device_get_softc(pa);
371 sc->fc = fc;
372 fc->status = FWBUSNOTREADY;
373
374 unitmask = UNIT2MIN(device_get_unit(dev));
375
376 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
377 for ( i = 0 ; i < fc->nisodma ; i++ ){
378 mn = unitmask | i;
379 /* XXX device name should be improved */
380 d = make_dev(&firewire_cdevsw, unit2minor(mn),
381 UID_ROOT, GID_OPERATOR, 0660,
382 "fw%x", mn);
383#if __FreeBSD_version >= 500000
384 if (i == 0)
385 sc->dev = d;
386 else
387 dev_depends(sc->dev, d);
388#else
389 sc->dev[i] = d;
390#endif
391 }
392 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG),
393 UID_ROOT, GID_OPERATOR, 0660,
394 "fwmem%d", device_get_unit(dev));
395#if __FreeBSD_version >= 500000
396 dev_depends(sc->dev, d);
397#else
398 sc->dev[i] = d;
399#endif
400 CALLOUT_INIT(&sc->fc->timeout_callout);
401 CALLOUT_INIT(&sc->fc->bmr_callout);
402 CALLOUT_INIT(&sc->fc->retry_probe_callout);
403 CALLOUT_INIT(&sc->fc->busprobe_callout);
404
405 callout_reset(&sc->fc->timeout_callout, hz,
406 (void *)firewire_watchdog, (void *)sc->fc);
407
408 /* Locate our children */
409 bus_generic_probe(dev);
410
411 /* launch attachement of the added children */
412 bus_generic_attach(dev);
413
414 /* bus_reset */
415 fc->ibr(fc);
416
417 return 0;
418}
419
420/*
421 * Attach it as child.
422 */
423static device_t
424firewire_add_child(device_t dev, int order, const char *name, int unit)
425{
426 device_t child;
427 struct firewire_softc *sc;
428
429 sc = (struct firewire_softc *)device_get_softc(dev);
430 child = device_add_child(dev, name, unit);
431 if (child) {
432 device_set_ivars(child, sc->fc);
433 device_probe_and_attach(child);
434 }
435
436 return child;
437}
438
439static int
440firewire_resume(device_t dev)
441{
442 struct firewire_softc *sc;
443
444 sc = (struct firewire_softc *)device_get_softc(dev);
445 sc->fc->status = FWBUSNOTREADY;
446
447 bus_generic_resume(dev);
448
449 return(0);
450}
451
452/*
453 * Dettach it.
454 */
455static int
456firewire_detach( device_t dev )
457{
458 struct firewire_softc *sc;
459 struct csrdir *csrd, *next;
460 struct fw_device *fwdev, *fwdev_next;
461
462 sc = (struct firewire_softc *)device_get_softc(dev);
463
464 bus_generic_detach(dev);
465
466 callout_stop(&sc->fc->timeout_callout);
467 callout_stop(&sc->fc->bmr_callout);
468 callout_stop(&sc->fc->retry_probe_callout);
469 callout_stop(&sc->fc->busprobe_callout);
470
471#if __FreeBSD_version >= 500000
472 destroy_dev(sc->dev);
473#else
474 {
475 int j;
476 for (j = 0 ; j < sc->fc->nisodma + 1; j++)
477 destroy_dev(sc->dev[j]);
478 }
479#endif
480 /* XXX xfree_free and untimeout on all xfers */
481 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL;
482 fwdev = fwdev_next) {
483 fwdev_next = STAILQ_NEXT(fwdev, link);
484 free(fwdev, M_FW);
485 }
486 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) {
487 next = SLIST_NEXT(csrd, link);
488 free(csrd, M_FW);
489 }
490 free(sc->fc->topology_map, M_FW);
491 free(sc->fc->speed_map, M_FW);
492 free(sc->fc->crom_src_buf, M_FW);
493 return(0);
494}
495#if 0
496static int
497firewire_shutdown( device_t dev )
498{
499 return 0;
500}
501#endif
502
503
504static void
505fw_xferq_drain(struct fw_xferq *xferq)
506{
507 struct fw_xfer *xfer;
508
509 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
510 STAILQ_REMOVE_HEAD(&xferq->q, link);
511 xferq->queued --;
512 xfer->resp = EAGAIN;
513 fw_xfer_done(xfer);
514 }
515}
516
517void
518fw_drain_txq(struct firewire_comm *fc)
519{
520 int i;
521
522 fw_xferq_drain(fc->atq);
523 fw_xferq_drain(fc->ats);
524 for(i = 0; i < fc->nisodma; i++)
525 fw_xferq_drain(fc->it[i]);
526}
527
528static void
529fw_reset_csr(struct firewire_comm *fc)
530{
531 int i;
532
533 CSRARC(fc, STATE_CLEAR)
534 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
535 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
536 CSRARC(fc, NODE_IDS) = 0x3f;
537
538 CSRARC(fc, TOPO_MAP + 8) = 0;
539 fc->irm = -1;
540
541 fc->max_node = -1;
542
543 for(i = 2; i < 0x100/4 - 2 ; i++){
544 CSRARC(fc, SPED_MAP + i * 4) = 0;
545 }
546 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
547 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
548 CSRARC(fc, RESET_START) = 0;
549 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
550 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
551 CSRARC(fc, CYCLE_TIME) = 0x0;
552 CSRARC(fc, BUS_TIME) = 0x0;
553 CSRARC(fc, BUS_MGR_ID) = 0x3f;
554 CSRARC(fc, BANDWIDTH_AV) = 4915;
555 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
556 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
557 CSRARC(fc, IP_CHANNELS) = (1 << 31);
558
559 CSRARC(fc, CONF_ROM) = 0x04 << 24;
560 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
561 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
562 1 << 28 | 0xff << 16 | 0x09 << 8;
563 CSRARC(fc, CONF_ROM + 0xc) = 0;
564
565/* DV depend CSRs see blue book */
566 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
567 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
568
569 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
570 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
571}
572
573static void
574fw_init_crom(struct firewire_comm *fc)
575{
576 struct crom_src *src;
577
578 fc->crom_src_buf = (struct crom_src_buf *)
579 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO);
580 if (fc->crom_src_buf == NULL)
581 return;
582
583 src = &fc->crom_src_buf->src;
584 bzero(src, sizeof(struct crom_src));
585
586 /* BUS info sample */
587 src->hdr.info_len = 4;
588
589 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
590
591 src->businfo.irmc = 1;
592 src->businfo.cmc = 1;
593 src->businfo.isc = 1;
594 src->businfo.bmc = 1;
595 src->businfo.pmc = 0;
596 src->businfo.cyc_clk_acc = 100;
597 src->businfo.max_rec = fc->maxrec;
598 src->businfo.max_rom = MAXROM_4;
599 src->businfo.generation = 1;
600 src->businfo.link_spd = fc->speed;
601
602 src->businfo.eui64.hi = fc->eui.hi;
603 src->businfo.eui64.lo = fc->eui.lo;
604
605 STAILQ_INIT(&src->chunk_list);
606
607 fc->crom_src = src;
608 fc->crom_root = &fc->crom_src_buf->root;
609}
610
611static void
612fw_reset_crom(struct firewire_comm *fc)
613{
614 struct crom_src_buf *buf;
615 struct crom_src *src;
616 struct crom_chunk *root;
617
618 if (fc->crom_src_buf == NULL)
619 fw_init_crom(fc);
620
621 buf = fc->crom_src_buf;
622 src = fc->crom_src;
623 root = fc->crom_root;
624
625 STAILQ_INIT(&src->chunk_list);
626
627 bzero(root, sizeof(struct crom_chunk));
628 crom_add_chunk(src, NULL, root, 0);
629 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
630 /* private company_id */
631 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
632 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project");
633 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version);
634 crom_add_simple_text(src, root, &buf->hw, hostname);
635}
636
637/*
638 * Called after bus reset.
639 */
640void
641fw_busreset(struct firewire_comm *fc)
642{
643 struct firewire_dev_comm *fdc;
644 struct crom_src *src;
645 device_t *devlistp;
646 void *newrom;
647 int i, devcnt;
648
649 switch(fc->status){
650 case FWBUSMGRELECT:
651 callout_stop(&fc->bmr_callout);
652 break;
653 default:
654 break;
655 }
656 fc->status = FWBUSRESET;
657 fw_reset_csr(fc);
658 fw_reset_crom(fc);
659
660 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) {
661 for( i = 0 ; i < devcnt ; i++)
662 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
663 fdc = device_get_softc(devlistp[i]);
664 if (fdc->post_busreset != NULL)
665 fdc->post_busreset(fdc);
666 }
667 free(devlistp, M_TEMP);
668 }
669
670 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO);
671 src = &fc->crom_src_buf->src;
672 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
673 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
674 /* bump generation and reload */
675 src->businfo.generation ++;
676 /* generation must be between 0x2 and 0xF */
677 if (src->businfo.generation < 2)
678 src->businfo.generation ++;
679 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
680 bcopy(newrom, (void *)fc->config_rom, CROMSIZE);
681 }
682 free(newrom, M_FW);
683}
684
685/* Call once after reboot */
686void fw_init(struct firewire_comm *fc)
687{
688 int i;
689 struct csrdir *csrd;
690#ifdef FW_VMACCESS
691 struct fw_xfer *xfer;
692 struct fw_bind *fwb;
693#endif
694
695 fc->max_asyretry = FW_MAXASYRTY;
696
697 fc->arq->queued = 0;
698 fc->ars->queued = 0;
699 fc->atq->queued = 0;
700 fc->ats->queued = 0;
701
702 fc->arq->buf = NULL;
703 fc->ars->buf = NULL;
704 fc->atq->buf = NULL;
705 fc->ats->buf = NULL;
706
707 fc->arq->flag = 0;
708 fc->ars->flag = 0;
709 fc->atq->flag = 0;
710 fc->ats->flag = 0;
711
712 STAILQ_INIT(&fc->atq->q);
713 STAILQ_INIT(&fc->ats->q);
714
715 for( i = 0 ; i < fc->nisodma ; i ++ ){
716 fc->it[i]->queued = 0;
717 fc->ir[i]->queued = 0;
718
719 fc->it[i]->start = NULL;
720 fc->ir[i]->start = NULL;
721
722 fc->it[i]->buf = NULL;
723 fc->ir[i]->buf = NULL;
724
725 fc->it[i]->flag = FWXFERQ_STREAM;
726 fc->ir[i]->flag = FWXFERQ_STREAM;
727
728 STAILQ_INIT(&fc->it[i]->q);
729 STAILQ_INIT(&fc->ir[i]->q);
730
731 STAILQ_INIT(&fc->it[i]->binds);
732 STAILQ_INIT(&fc->ir[i]->binds);
733 }
734
735 fc->arq->maxq = FWMAXQUEUE;
736 fc->ars->maxq = FWMAXQUEUE;
737 fc->atq->maxq = FWMAXQUEUE;
738 fc->ats->maxq = FWMAXQUEUE;
739
740 for( i = 0 ; i < fc->nisodma ; i++){
741 fc->ir[i]->maxq = FWMAXQUEUE;
742 fc->it[i]->maxq = FWMAXQUEUE;
743 }
744/* Initialize csr registers */
745 fc->topology_map = (struct fw_topology_map *)malloc(
746 sizeof(struct fw_topology_map),
747 M_FW, M_NOWAIT | M_ZERO);
748 fc->speed_map = (struct fw_speed_map *)malloc(
749 sizeof(struct fw_speed_map),
750 M_FW, M_NOWAIT | M_ZERO);
751 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
752 CSRARC(fc, TOPO_MAP + 4) = 1;
753 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
754 CSRARC(fc, SPED_MAP + 4) = 1;
755
756 STAILQ_INIT(&fc->devices);
757 STAILQ_INIT(&fc->pending);
758
759/* Initialize csr ROM work space */
760 SLIST_INIT(&fc->ongocsr);
761 SLIST_INIT(&fc->csrfree);
762 for( i = 0 ; i < FWMAXCSRDIR ; i++){
763 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT);
764 if(csrd == NULL) break;
765 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
766 }
767
768/* Initialize Async handlers */
769 STAILQ_INIT(&fc->binds);
770 for( i = 0 ; i < 0x40 ; i++){
771 STAILQ_INIT(&fc->tlabels[i]);
772 }
773
774/* DV depend CSRs see blue book */
775#if 0
776 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
777 CSRARC(fc, oPCR) = 0x8000007a;
778 for(i = 4 ; i < 0x7c/4 ; i+=4){
779 CSRARC(fc, i + oPCR) = 0x8000007a;
780 }
781
782 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
783 CSRARC(fc, iPCR) = 0x803f0000;
784 for(i = 4 ; i < 0x7c/4 ; i+=4){
785 CSRARC(fc, i + iPCR) = 0x0;
786 }
787#endif
788
789 fc->crom_src_buf = NULL;
790
791#ifdef FW_VMACCESS
792 xfer = fw_xfer_alloc();
793 if(xfer == NULL) return;
794
795 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
796 if(fwb == NULL){
797 fw_xfer_free(xfer);
798 }
799 xfer->act.hand = fw_vmaccess;
800 xfer->fc = fc;
801 xfer->sc = NULL;
802
803 fwb->start_hi = 0x2;
804 fwb->start_lo = 0;
805 fwb->addrlen = 0xffffffff;
806 fwb->xfer = xfer;
807 fw_bindadd(fc, fwb);
808#endif
809}
810
811/*
812 * To lookup binded process from IEEE1394 address.
813 */
814struct fw_bind *
815fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo)
816{
817 struct fw_bind *tfw;
818 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ;
819 tfw = STAILQ_NEXT(tfw, fclist)){
820 if (tfw->act_type != FWACT_NULL &&
821 tfw->start_hi == dest_hi &&
822 tfw->start_lo <= dest_lo &&
823 (tfw->start_lo + tfw->addrlen) > dest_lo){
824 return(tfw);
825 }
826 }
827 return(NULL);
828}
829
830/*
831 * To bind IEEE1394 address block to process.
832 */
833int
834fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
835{
836 struct fw_bind *tfw, *tfw2 = NULL;
837 int err = 0;
838 tfw = STAILQ_FIRST(&fc->binds);
839 if(tfw == NULL){
840 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
841 goto out;
842 }
843 if((tfw->start_hi > fwb->start_hi) ||
844 (tfw->start_hi == fwb->start_hi &&
845 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){
846 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
847 goto out;
848 }
849 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){
850 if((tfw->start_hi < fwb->start_hi) ||
851 (tfw->start_hi == fwb->start_hi &&
852 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){
853 tfw2 = STAILQ_NEXT(tfw, fclist);
854 if(tfw2 == NULL)
855 break;
856 if((tfw2->start_hi > fwb->start_hi) ||
857 (tfw2->start_hi == fwb->start_hi &&
858 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){
859 break;
860 }else{
861 err = EBUSY;
862 goto out;
863 }
864 }
865 }
866 if(tfw != NULL){
867 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist);
868 }else{
869 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist);
870 }
871out:
872 if (!err && fwb->act_type == FWACT_CH)
873 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist);
874 return err;
875}
876
877/*
878 * To free IEEE1394 address block.
879 */
880int
881fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
882{
883 int s;
884 struct fw_xfer *xfer, *next;
885
886 s = splfw();
887 /* shall we check the existance? */
888 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
889 /* shall we do this? */
890 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
891 next = STAILQ_NEXT(xfer, link);
892 fw_xfer_free(xfer);
893 }
894 STAILQ_INIT(&fwb->xferlist);
895
896 splx(s);
897 return 0;
898}
899
900/*
901 * To free transaction label.
902 */
903static void
904fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
905{
906 struct tlabel *tl;
907 int s = splfw();
908
909 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
910 tl = STAILQ_NEXT(tl, link)){
911 if(tl->xfer == xfer){
912 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
913 free(tl, M_FW);
914 splx(s);
915 return;
916 }
917 }
918 splx(s);
919 return;
920}
921
922/*
923 * To obtain XFER structure by transaction label.
924 */
925static struct fw_xfer *
926fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
927{
928 struct fw_xfer *xfer;
929 struct tlabel *tl;
930 int s = splfw();
931
932 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
933 tl = STAILQ_NEXT(tl, link)){
934 if(tl->xfer->dst == node){
935 xfer = tl->xfer;
936 splx(s);
937 if (firewire_debug > 2)
938 printf("fw_tl2xfer: found tl=%d\n", tlabel);
939 return(xfer);
940 }
941 }
942 if (firewire_debug > 1)
943 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
944 splx(s);
945 return(NULL);
946}
947
948/*
949 * To allocate IEEE1394 XFER structure.
950 */
951struct fw_xfer *
952fw_xfer_alloc(struct malloc_type *type)
953{
954 struct fw_xfer *xfer;
955
956 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
957 if (xfer == NULL)
958 return xfer;
959
960 microtime(&xfer->tv);
961 xfer->malloc = type;
962
963 return xfer;
964}
965
966struct fw_xfer *
967fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
968{
969 struct fw_xfer *xfer;
970
971 xfer = fw_xfer_alloc(type);
972 xfer->send.len = send_len;
973 xfer->recv.len = recv_len;
974 if (xfer == NULL)
975 return(NULL);
976 if (send_len) {
977 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO);
978 if (xfer->send.buf == NULL) {
979 fw_xfer_free(xfer);
980 return(NULL);
981 }
982 }
983 if (recv_len) {
984 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT);
985 if (xfer->recv.buf == NULL) {
986 if (xfer->send.buf != NULL)
987 free(xfer->send.buf, type);
988 fw_xfer_free(xfer);
989 return(NULL);
990 }
991 }
992 return(xfer);
993}
994
995/*
996 * IEEE1394 XFER post process.
997 */
998void
999fw_xfer_done(struct fw_xfer *xfer)
1000{
1001 if (xfer->act.hand == NULL) {
1002 printf("act.hand == NULL\n");
1003 return;
1004 }
1005
1006 if (xfer->fc->status != FWBUSRESET)
1007 xfer->act.hand(xfer);
1008 else {
1009 printf("fw_xfer_done: pending\n");
1010 if (xfer->fc != NULL)
1011 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link);
1012 else
1013 panic("fw_xfer_done: why xfer->fc is NULL?");
1014 }
1015}
1016
1017void
1018fw_xfer_unload(struct fw_xfer* xfer)
1019{
1020 int s;
1021
1022 if(xfer == NULL ) return;
1023 if(xfer->state == FWXF_INQ){
1024 printf("fw_xfer_free FWXF_INQ\n");
1025 s = splfw();
1026 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
1027 xfer->q->queued --;
1028 splx(s);
1029 }
1030 if (xfer->fc != NULL) {
1031#if 1
1032 if(xfer->state == FWXF_START)
1033 /*
1034 * This could happen if:
1035 * 1. We call fwohci_arcv() before fwohci_txd().
1036 * 2. firewire_watch() is called.
1037 */
1038 printf("fw_xfer_free FWXF_START\n");
1039#endif
1040 fw_tl_free(xfer->fc, xfer);
1041 }
1042 xfer->state = FWXF_INIT;
1043 xfer->resp = 0;
1044 xfer->retry = 0;
1045}
1046/*
1047 * To free IEEE1394 XFER structure.
1048 */
1049void
1050fw_xfer_free( struct fw_xfer* xfer)
1051{
1052 if(xfer == NULL ) return;
1053 fw_xfer_unload(xfer);
1054 if(xfer->send.buf != NULL){
1055 free(xfer->send.buf, xfer->malloc);
1056 }
1057 if(xfer->recv.buf != NULL){
1058 free(xfer->recv.buf, xfer->malloc);
1059 }
1060 free(xfer, xfer->malloc);
1061}
1062
1063static void
1064fw_asy_callback_free(struct fw_xfer *xfer)
1065{
1066#if 0
1067 printf("asyreq done state=%d resp=%d\n",
1068 xfer->state, xfer->resp);
1069#endif
1070 fw_xfer_free(xfer);
1071}
1072
1073/*
1074 * To configure PHY.
1075 */
1076static void
1077fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
1078{
1079 struct fw_xfer *xfer;
1080 struct fw_pkt *fp;
1081
1082 fc->status = FWBUSPHYCONF;
1083
1084 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0);
1085 if (xfer == NULL)
1086 return;
1087 xfer->fc = fc;
1088 xfer->retry_req = fw_asybusy;
1089 xfer->act.hand = fw_asy_callback_free;
1090
1091 fp = (struct fw_pkt *)xfer->send.buf;
1092 fp->mode.ld[1] = 0;
1093 if (root_node >= 0)
1094 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23;
1095 if (gap_count >= 0)
1096 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16;
1097 fp->mode.ld[2] = ~fp->mode.ld[1];
1098/* XXX Dangerous, how to pass PHY packet to device driver */
1099 fp->mode.common.tcode |= FWTCODE_PHY;
1100
1101 if (firewire_debug)
1102 printf("send phy_config root_node=%d gap_count=%d\n",
1103 root_node, gap_count);
1104 fw_asyreq(fc, -1, xfer);
1105}
1106
1107#if 0
1108/*
1109 * Dump self ID.
1110 */
1111static void
1112fw_print_sid(u_int32_t sid)
1113{
1114 union fw_self_id *s;
1115 s = (union fw_self_id *) &sid;
1116 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1117 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1118 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1119 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1120 s->p0.power_class, s->p0.port0, s->p0.port1,
1121 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1122}
1123#endif
1124
1125/*
1126 * To receive self ID.
1127 */
1128void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len)
1129{
1130 u_int32_t *p;
1131 union fw_self_id *self_id;
1132 u_int i, j, node, c_port = 0, i_branch = 0;
1133
1134 fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
1135 fc->status = FWBUSINIT;
1136 fc->max_node = fc->nodeid & 0x3f;
1137 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
1138 fc->status = FWBUSCYMELECT;
1139 fc->topology_map->crc_len = 2;
1140 fc->topology_map->generation ++;
1141 fc->topology_map->self_id_count = 0;
1142 fc->topology_map->node_count = 0;
1143 fc->speed_map->generation ++;
1144 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1145 self_id = &fc->topology_map->self_id[0];
1146 for(i = 0; i < fc->sid_cnt; i ++){
1147 if (sid[1] != ~sid[0]) {
1148 printf("fw_sidrcv: invalid self-id packet\n");
1149 sid += 2;
1150 continue;
1151 }
1152 *self_id = *((union fw_self_id *)sid);
1153 fc->topology_map->crc_len++;
1154 if(self_id->p0.sequel == 0){
1155 fc->topology_map->node_count ++;
1156 c_port = 0;
1157#if 0
1158 fw_print_sid(sid[0]);
1159#endif
1160 node = self_id->p0.phy_id;
1161 if(fc->max_node < node){
1162 fc->max_node = self_id->p0.phy_id;
1163 }
1164 /* XXX I'm not sure this is the right speed_map */
1165 fc->speed_map->speed[node][node]
1166 = self_id->p0.phy_speed;
1167 for (j = 0; j < node; j ++) {
1168 fc->speed_map->speed[j][node]
1169 = fc->speed_map->speed[node][j]
1170 = min(fc->speed_map->speed[j][j],
1171 self_id->p0.phy_speed);
1172 }
1173 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1174 (self_id->p0.link_active && self_id->p0.contender)) {
1175 fc->irm = self_id->p0.phy_id;
1176 }
1177 if(self_id->p0.port0 >= 0x2){
1178 c_port++;
1179 }
1180 if(self_id->p0.port1 >= 0x2){
1181 c_port++;
1182 }
1183 if(self_id->p0.port2 >= 0x2){
1184 c_port++;
1185 }
1186 }
1187 if(c_port > 2){
1188 i_branch += (c_port - 2);
1189 }
1190 sid += 2;
1191 self_id++;
1192 fc->topology_map->self_id_count ++;
1193 }
1194 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1195 /* CRC */
1196 fc->topology_map->crc = fw_crc16(
1197 (u_int32_t *)&fc->topology_map->generation,
1198 fc->topology_map->crc_len * 4);
1199 fc->speed_map->crc = fw_crc16(
1200 (u_int32_t *)&fc->speed_map->generation,
1201 fc->speed_map->crc_len * 4);
1202 /* byteswap and copy to CSR */
1203 p = (u_int32_t *)fc->topology_map;
1204 for (i = 0; i <= fc->topology_map->crc_len; i++)
1205 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1206 p = (u_int32_t *)fc->speed_map;
1207 CSRARC(fc, SPED_MAP) = htonl(*p++);
1208 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1209 /* don't byte-swap u_int8_t array */
1210 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1211
1212 fc->max_hop = fc->max_node - i_branch;
1213 printf(", maxhop <= %d", fc->max_hop);
1214
1215 if(fc->irm == -1 ){
1216 printf(", Not found IRM capable node");
1217 }else{
1218 printf(", cable IRM = %d", fc->irm);
1219 if (fc->irm == fc->nodeid)
1220 printf(" (me)");
1221 }
1222 printf("\n");
1223
1224 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1225 if (fc->irm == fc->nodeid) {
1226 fc->status = FWBUSMGRDONE;
1227 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1228 fw_bmr(fc);
1229 } else {
1230 fc->status = FWBUSMGRELECT;
1231 callout_reset(&fc->bmr_callout, hz/8,
1232 (void *)fw_try_bmr, (void *)fc);
1233 }
1234 } else
1235 fc->status = FWBUSMGRDONE;
1236
1237 callout_reset(&fc->busprobe_callout, hz/4,
1238 (void *)fw_bus_probe, (void *)fc);
1239}
1240
1241/*
1242 * To probe devices on the IEEE1394 bus.
1243 */
1244static void
1245fw_bus_probe(struct firewire_comm *fc)
1246{
1247 int s;
1248 struct fw_device *fwdev, *next;
1249
1250 s = splfw();
1251 fc->status = FWBUSEXPLORE;
1252 fc->retry_count = 0;
1253
1254/*
1255 * Invalidate all devices, just after bus reset. Devices
1256 * to be removed has not been seen longer time.
1257 */
1258 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1259 next = STAILQ_NEXT(fwdev, link);
1260 if (fwdev->status != FWDEVINVAL) {
1261 fwdev->status = FWDEVINVAL;
1262 fwdev->rcnt = 0;
1263 } else if(fwdev->rcnt < FW_MAXDEVRCNT) {
1264 fwdev->rcnt ++;
1265 } else {
1266 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link);
1267 free(fwdev, M_FW);
1268 }
1269 }
1270 fc->ongonode = 0;
1271 fc->ongoaddr = CSRROMOFF;
1272 fc->ongodev = NULL;
1273 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1274 fw_bus_explore(fc);
1275 splx(s);
1276}
1277
1278/*
1279 * To collect device informations on the IEEE1394 bus.
1280 */
1281static void
1282fw_bus_explore(struct firewire_comm *fc )
1283{
1284 int err = 0;
1285 struct fw_device *fwdev, *pfwdev, *tfwdev;
1286 u_int32_t addr;
1287 struct fw_xfer *xfer;
1288 struct fw_pkt *fp;
1289
1290 if(fc->status != FWBUSEXPLORE)
1291 return;
1292
1293loop:
1294 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1295
1296 if(fc->ongonode > fc->max_node) goto done;
1297 if(fc->ongonode >= 0x3f) goto done;
1298
1299 /* check link */
1300 /* XXX we need to check phy_id first */
1301 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
1302 if (firewire_debug)
1303 printf("node%d: link down\n", fc->ongonode);
1304 fc->ongonode++;
1305 goto loop;
1306 }
1307
1308 if(fc->ongoaddr <= CSRROMOFF &&
1309 fc->ongoeui.hi == 0xffffffff &&
1310 fc->ongoeui.lo == 0xffffffff ){
1311 fc->ongoaddr = CSRROMOFF;
1312 addr = 0xf0000000 | fc->ongoaddr;
1313 }else if(fc->ongoeui.hi == 0xffffffff ){
1314 fc->ongoaddr = CSRROMOFF + 0xc;
1315 addr = 0xf0000000 | fc->ongoaddr;
1316 }else if(fc->ongoeui.lo == 0xffffffff ){
1317 fc->ongoaddr = CSRROMOFF + 0x10;
1318 addr = 0xf0000000 | fc->ongoaddr;
1319 }else if(fc->ongodev == NULL){
1320 STAILQ_FOREACH(fwdev, &fc->devices, link)
1321 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1322 break;
1323 if(fwdev != NULL){
1324 fwdev->dst = fc->ongonode;
1325 fwdev->status = FWDEVINIT;
1326 fc->ongodev = fwdev;
1327 fc->ongoaddr = CSRROMOFF;
1328 addr = 0xf0000000 | fc->ongoaddr;
1329 goto dorequest;
1330 }
1331 fwdev = malloc(sizeof(struct fw_device), M_FW,
1332 M_NOWAIT | M_ZERO);
1333 if(fwdev == NULL)
1334 return;
1335 fwdev->fc = fc;
1336 fwdev->rommax = 0;
1337 fwdev->dst = fc->ongonode;
1338 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1339 fwdev->status = FWDEVINIT;
1340 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1341
1342 pfwdev = NULL;
1343 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1344 if (tfwdev->eui.hi > fwdev->eui.hi ||
1345 (tfwdev->eui.hi == fwdev->eui.hi &&
1346 tfwdev->eui.lo > fwdev->eui.lo))
1347 break;
1348 pfwdev = tfwdev;
1349 }
1350 if (pfwdev == NULL)
1351 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1352 else
1353 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1354
1355 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1356 linkspeed[fwdev->speed],
1357 fc->ongoeui.hi, fc->ongoeui.lo);
1358
1359 fc->ongodev = fwdev;
1360 fc->ongoaddr = CSRROMOFF;
1361 addr = 0xf0000000 | fc->ongoaddr;
1362 }else{
1363 addr = 0xf0000000 | fc->ongoaddr;
1364 }
1365dorequest:
1366#if 0
1367 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1368 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1369 fw_bus_explore_callback);
1370 if(xfer == NULL) goto done;
1371#else
1372 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16);
1373 if(xfer == NULL){
1374 goto done;
1375 }
1376 xfer->spd = 0;
1377 fp = (struct fw_pkt *)xfer->send.buf;
1378 fp->mode.rreqq.dest_hi = 0xffff;
1379 fp->mode.rreqq.tlrt = 0;
1380 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1381 fp->mode.rreqq.pri = 0;
1382 fp->mode.rreqq.src = 0;
1383 xfer->dst = FWLOCALBUS | fc->ongonode;
1384 fp->mode.rreqq.dst = xfer->dst;
1385 fp->mode.rreqq.dest_lo = addr;
1386 xfer->act.hand = fw_bus_explore_callback;
1387
1388 if (firewire_debug)
1389 printf("node%d: explore addr=0x%x\n",
1390 fc->ongonode, fc->ongoaddr);
1391 err = fw_asyreq(fc, -1, xfer);
1392 if(err){
1393 fw_xfer_free( xfer);
1394 return;
1395 }
1396#endif
1397 return;
1398done:
1399 /* fw_attach_devs */
1400 fc->status = FWBUSEXPDONE;
1401 if (firewire_debug)
1402 printf("bus_explore done\n");
1403 fw_attach_dev(fc);
1404 return;
1405
1406}
1407
1408/* Portable Async. request read quad */
1409struct fw_xfer *
1410asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt,
1411 u_int32_t addr_hi, u_int32_t addr_lo,
1412 void (*hand) __P((struct fw_xfer*)))
1413{
1414 struct fw_xfer *xfer;
1415 struct fw_pkt *fp;
1416 int err;
1417
1418 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16);
1419 if (xfer == NULL)
1420 return NULL;
1421
1422 xfer->spd = spd; /* XXX:min(spd, fc->spd) */
1423 fp = (struct fw_pkt *)xfer->send.buf;
1424 fp->mode.rreqq.dest_hi = addr_hi & 0xffff;
1425 if(tl & FWP_TL_VALID){
1426 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1427 }else{
1428 fp->mode.rreqq.tlrt = 0;
1429 }
1430 fp->mode.rreqq.tlrt |= rt & 0x3;
1431 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1432 fp->mode.rreqq.pri = 0;
1433 fp->mode.rreqq.src = 0;
1434 xfer->dst = addr_hi >> 16;
1435 fp->mode.rreqq.dst = xfer->dst;
1436 fp->mode.rreqq.dest_lo = addr_lo;
1437 xfer->act.hand = hand;
1438
1439 err = fw_asyreq(fc, -1, xfer);
1440 if(err){
1441 fw_xfer_free( xfer);
1442 return NULL;
1443 }
1444 return xfer;
1445}
1446
1447/*
1448 * Callback for the IEEE1394 bus information collection.
1449 */
1450static void
1451fw_bus_explore_callback(struct fw_xfer *xfer)
1452{
1453 struct firewire_comm *fc;
1454 struct fw_pkt *sfp,*rfp;
1455 struct csrhdr *chdr;
1456 struct csrdir *csrd;
1457 struct csrreg *csrreg;
1458 u_int32_t offset;
1459
1460
1461 if(xfer == NULL) {
1462 printf("xfer == NULL\n");
1463 return;
1464 }
1465 fc = xfer->fc;
1466
1467 if (firewire_debug)
1468 printf("node%d: callback addr=0x%x\n",
1469 fc->ongonode, fc->ongoaddr);
1470
1471 if(xfer->resp != 0){
1472 printf("node%d: resp=%d addr=0x%x\n",
1473 fc->ongonode, xfer->resp, fc->ongoaddr);
1474 goto errnode;
1475 }
1476
1477 if(xfer->send.buf == NULL){
1478 printf("node%d: send.buf=NULL addr=0x%x\n",
1479 fc->ongonode, fc->ongoaddr);
1480 goto errnode;
1481 }
1482 sfp = (struct fw_pkt *)xfer->send.buf;
1483
1484 if(xfer->recv.buf == NULL){
1485 printf("node%d: recv.buf=NULL addr=0x%x\n",
1486 fc->ongonode, fc->ongoaddr);
1487 goto errnode;
1488 }
1489 rfp = (struct fw_pkt *)xfer->recv.buf;
1490#if 0
1491 {
1492 u_int32_t *qld;
1493 int i;
1494 qld = (u_int32_t *)xfer->recv.buf;
1495 printf("len:%d\n", xfer->recv.len);
1496 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1497 printf("0x%08x ", rfp->mode.ld[i/4]);
1498 if((i % 16) == 15) printf("\n");
1499 }
1500 if((i % 16) != 15) printf("\n");
1501 }
1502#endif
1503 if(fc->ongodev == NULL){
1504 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){
1505 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1506 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1507/* If CSR is minimal confinguration, more investgation is not needed. */
1508 if(chdr->info_len == 1){
1509 if (firewire_debug)
1510 printf("node%d: minimal config\n",
1511 fc->ongonode);
1512 goto nextnode;
1513 }else{
1514 fc->ongoaddr = CSRROMOFF + 0xc;
1515 }
1516 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){
1517 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1518 fc->ongoaddr = CSRROMOFF + 0x10;
1519 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){
1520 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1521 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1522 if (firewire_debug)
1523 printf("node%d: eui64 is zero.\n",
1524 fc->ongonode);
1525 goto nextnode;
1526 }
1527 fc->ongoaddr = CSRROMOFF;
1528 }
1529 }else{
1530 if (fc->ongoaddr == CSRROMOFF &&
1531 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) {
1532 fc->ongodev->status = FWDEVATTACHED;
1533 goto nextnode;
1534 }
1535 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1536 if(fc->ongoaddr > fc->ongodev->rommax){
1537 fc->ongodev->rommax = fc->ongoaddr;
1538 }
1539 csrd = SLIST_FIRST(&fc->ongocsr);
1540 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1541 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1542 offset = CSRROMOFF;
1543 }else{
1544 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1545 offset = csrd->off;
1546 }
1547 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1548 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1549 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1550 csrd = SLIST_FIRST(&fc->csrfree);
1551 if(csrd == NULL){
1552 goto nextnode;
1553 }else{
1554 csrd->ongoaddr = fc->ongoaddr;
1555 fc->ongoaddr += csrreg->val * 4;
1556 csrd->off = fc->ongoaddr;
1557 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1558 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1559 goto nextaddr;
1560 }
1561 }
1562 }
1563 fc->ongoaddr += 4;
1564 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1565 (fc->ongodev->rommax < 0x414)){
1566 if(fc->ongodev->rommax <= 0x414){
1567 csrd = SLIST_FIRST(&fc->csrfree);
1568 if(csrd == NULL) goto nextnode;
1569 csrd->off = fc->ongoaddr;
1570 csrd->ongoaddr = fc->ongoaddr;
1571 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1572 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1573 }
1574 goto nextaddr;
1575 }
1576
1577 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1578 if(csrd == NULL){
1579 goto nextnode;
1580 };
1581 fc->ongoaddr = csrd->ongoaddr + 4;
1582 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1583 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1584 csrd = SLIST_FIRST(&fc->ongocsr);
1585 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1586 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1587 offset = CSRROMOFF;
1588 }else{
1589 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1590 offset = csrd->off;
1591 }
1592 }
1593 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1594 goto nextnode;
1595 }
1596 }
1597nextaddr:
1598 fw_xfer_free( xfer);
1599 fw_bus_explore(fc);
1600 return;
1601errnode:
1602 fc->retry_count++;
1603 if (fc->ongodev != NULL)
1604 fc->ongodev->status = FWDEVINVAL;
1605nextnode:
1606 fw_xfer_free( xfer);
1607 fc->ongonode++;
1608/* housekeeping work space */
1609 fc->ongoaddr = CSRROMOFF;
1610 fc->ongodev = NULL;
1611 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1612 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1613 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1614 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1615 }
1616 fw_bus_explore(fc);
1617 return;
1618}
1619
1620/*
1621 * To attach sub-devices layer onto IEEE1394 bus.
1622 */
1623static void
1624fw_attach_dev(struct firewire_comm *fc)
1625{
1626 struct fw_device *fwdev;
1627 struct fw_xfer *xfer;
1628 int i, err;
1629 device_t *devlistp;
1630 int devcnt;
1631 struct firewire_dev_comm *fdc;
1632
1633 STAILQ_FOREACH(fwdev, &fc->devices, link)
1634 if (fwdev->status == FWDEVINIT)
1635 fwdev->status = FWDEVATTACHED;
1636
1637 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1638 if( err != 0 )
1639 return;
1640 for( i = 0 ; i < devcnt ; i++){
1641 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1642 fdc = device_get_softc(devlistp[i]);
1643 if (fdc->post_explore != NULL)
1644 fdc->post_explore(fdc);
1645 }
1646 }
1647 free(devlistp, M_TEMP);
1648
1649 /* call pending handlers */
1650 i = 0;
1651 while ((xfer = STAILQ_FIRST(&fc->pending))) {
1652 STAILQ_REMOVE_HEAD(&fc->pending, link);
1653 i++;
1654 if (xfer->act.hand)
1655 xfer->act.hand(xfer);
1656 }
1657 if (i > 0)
1658 printf("fw_attach_dev: %d pending handlers called\n", i);
1659 if (fc->retry_count > 0) {
1660 printf("probe failed for %d node\n", fc->retry_count);
1661#if 0
1662 callout_reset(&fc->retry_probe_callout, hz*2,
1663 (void *)fc->ibr, (void *)fc);
1664#endif
1665 }
1666 return;
1667}
1668
1669/*
1670 * To allocate uniq transaction label.
1671 */
1672static int
1673fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1674{
1675 u_int i;
1676 struct tlabel *tl, *tmptl;
1677 int s;
1678 static u_int32_t label = 0;
1679
1680 s = splfw();
1681 for( i = 0 ; i < 0x40 ; i ++){
1682 label = (label + 1) & 0x3f;
1683 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1684 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1685 if(tmptl->xfer->dst == xfer->dst) break;
1686 }
1687 if(tmptl == NULL) {
1688 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT);
1689 if (tl == NULL) {
1690 splx(s);
1691 return (-1);
1692 }
1693 tl->xfer = xfer;
1694 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1695 splx(s);
1696 if (firewire_debug > 1)
1697 printf("fw_get_tlabel: dst=%d tl=%d\n",
1698 xfer->dst, label);
1699 return(label);
1700 }
1701 }
1702 splx(s);
1703
1704 printf("fw_get_tlabel: no free tlabel\n");
1705 return(-1);
1706}
1707
1708static void
1709fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec)
1710{
1711 char *p;
1712 int res, i, len;
1713
1714 p = xfer->recv.buf;
1715 res = xfer->recv.len;
1716 for (i = 0; i < nvec; i++, vec++) {
1717 len = vec->iov_len;
1718 if (res < len) {
1719 printf("rcv buffer(%d) is %d bytes short.\n",
1720 xfer->recv.len, len - res);
1721 len = res;
1722 }
1723 bcopy(vec->iov_base, p, len);
1724 p += len;
1725 res -= len;
1726 if (res <= 0)
1727 break;
1728 }
1729 xfer->recv.len -= res;
1730}
1731
1732/*
1733 * Generic packet receving process.
1734 */
1735void
1736fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd)
1737{
1738 struct fw_pkt *fp, *resfp;
1739 struct fw_xfer *xfer;
1740 struct fw_bind *bind;
1741 struct firewire_softc *sc;
1742 int tcode, s;
1743 int i, len, oldstate;
1744#if 0
1745 {
1746 u_int32_t *qld;
1747 int i;
1748 qld = (u_int32_t *)buf;
1749 printf("spd %d len:%d\n", spd, len);
1750 for( i = 0 ; i <= len && i < 32; i+= 4){
1751 printf("0x%08x ", ntohl(qld[i/4]));
1752 if((i % 16) == 15) printf("\n");
1753 }
1754 if((i % 16) != 15) printf("\n");
1755 }
1756#endif
1757 fp = (struct fw_pkt *)vec[0].iov_base;
1758 tcode = fp->mode.common.tcode;
1759#if 0 /* XXX this check is not valid for RRESQ and WREQQ */
1760 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) {
1761#if __FreeBSD_version >= 500000
1762 printf("fw_rcv: iov_len(%zu) is less than"
1763#else
1764 printf("fw_rcv: iov_len(%u) is less than"
1765#endif
1766 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len,
1767 fc->tcode[tcode].hdr_len, tcode);
1768 }
1769#endif
1770 switch (tcode) {
1771 case FWTCODE_WRES:
1772 case FWTCODE_RRESQ:
1773 case FWTCODE_RRESB:
1774 case FWTCODE_LRES:
1775 xfer = fw_tl2xfer(fc, fp->mode.hdr.src,
1776 fp->mode.hdr.tlrt >> 2);
1777 if(xfer == NULL) {
1778 printf("fw_rcv: unknown response "
1779 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n",
1780 tcode,
1781 fp->mode.hdr.src,
1782 fp->mode.hdr.tlrt >> 2,
1783 fp->mode.hdr.tlrt & 3,
1784 fp->mode.rresq.data);
1785#if 1
1786 printf("try ad-hoc work around!!\n");
1787 xfer = fw_tl2xfer(fc, fp->mode.hdr.src,
1788 (fp->mode.hdr.tlrt >> 2)^3);
1789 if (xfer == NULL) {
1790 printf("no use...\n");
1791 goto err;
1792 }
1793#else
1794 goto err;
1795#endif
1796 }
1797 fw_rcv_copy(xfer, vec, nvec);
1798 xfer->resp = 0;
1799 /* make sure the packet is drained in AT queue */
1800 oldstate = xfer->state;
1801 xfer->state = FWXF_RCVD;
1802 switch (oldstate) {
1803 case FWXF_SENT:
1804 fw_xfer_done(xfer);
1805 break;
1806 case FWXF_START:
1807 if (firewire_debug)
1808 printf("not sent yet tl=%x\n", xfer->tl);
1809 break;
1810 default:
1811 printf("unexpected state %d\n", xfer->state);
1812 }
1813 return;
1814 case FWTCODE_WREQQ:
1815 case FWTCODE_WREQB:
1816 case FWTCODE_RREQQ:
1817 case FWTCODE_RREQB:
1818 case FWTCODE_LREQ:
1819 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi,
1820 fp->mode.rreqq.dest_lo);
1821 if(bind == NULL){
1822#if __FreeBSD_version >= 500000
1823 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n",
1824#else
1825 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n",
1826#endif
1827 fp->mode.wreqq.dest_hi,
1828 fp->mode.wreqq.dest_lo,
1829 tcode,
1830 fp->mode.hdr.src,
1831 ntohl(fp->mode.wreqq.data));
1832 if (fc->status == FWBUSRESET) {
1833 printf("fw_rcv: cannot respond(bus reset)!\n");
1834 goto err;
1835 }
1836 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0);
1837 if(xfer == NULL){
1838 return;
1839 }
1840 xfer->spd = spd;
1841 resfp = (struct fw_pkt *)xfer->send.buf;
1842 switch (tcode) {
1843 case FWTCODE_WREQQ:
1844 case FWTCODE_WREQB:
1845 resfp->mode.hdr.tcode = FWTCODE_WRES;
1846 xfer->send.len = 12;
1847 break;
1848 case FWTCODE_RREQQ:
1849 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1850 xfer->send.len = 16;
1851 break;
1852 case FWTCODE_RREQB:
1853 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1854 xfer->send.len = 16;
1855 break;
1856 case FWTCODE_LREQ:
1857 resfp->mode.hdr.tcode = FWTCODE_LRES;
1858 xfer->send.len = 16;
1859 break;
1860 }
1861 resfp->mode.hdr.dst = fp->mode.hdr.src;
1862 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1863 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1864 resfp->mode.rresb.rtcode = 7;
1865 resfp->mode.rresb.extcode = 0;
1866 resfp->mode.rresb.len = 0;
1867/*
1868 xfer->act.hand = fw_asy_callback;
1869*/
1870 xfer->act.hand = fw_xfer_free;
1871 if(fw_asyreq(fc, -1, xfer)){
1872 fw_xfer_free( xfer);
1873 return;
1874 }
1875 goto err;
1876 }
1877 len = 0;
1878 for (i = 0; i < nvec; i ++)
1879 len += vec[i].iov_len;
1880 switch(bind->act_type){
1881 case FWACT_XFER:
1882 /* splfw()?? */
1883 xfer = STAILQ_FIRST(&bind->xferlist);
1884 if (xfer == NULL) {
1885 printf("Discard a packet for this bind.\n");
1886 goto err;
1887 }
1888 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1889 fw_rcv_copy(xfer, vec, nvec);
1890 xfer->spd = spd;
1891 if (fc->status != FWBUSRESET)
1892 xfer->act.hand(xfer);
1893 else
1894 STAILQ_INSERT_TAIL(&fc->pending, xfer, link);
1895 return;
1896 break;
1897 case FWACT_CH:
1898 if(fc->ir[bind->sub]->queued >=
1899 fc->ir[bind->sub]->maxq){
1900 device_printf(fc->bdev,
1901 "Discard a packet %x %d\n",
1902 bind->sub,
1903 fc->ir[bind->sub]->queued);
1904 goto err;
1905 }
1906 xfer = STAILQ_FIRST(&bind->xferlist);
1907 if (xfer == NULL) {
1908 printf("Discard packet for this bind\n");
1909 goto err;
1910 }
1911 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1912 fw_rcv_copy(xfer, vec, nvec);
1913 xfer->spd = spd;
1914 s = splfw();
1915 fc->ir[bind->sub]->queued++;
1916 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link);
1917 splx(s);
1918
1919 wakeup((caddr_t)fc->ir[bind->sub]);
1920
1921 return;
1922 break;
1923 default:
1924 goto err;
1925 break;
1926 }
1927 break;
1928 case FWTCODE_STREAM:
1929 {
1930 struct fw_xferq *xferq;
1931
1932 xferq = fc->ir[sub];
1933#if 0
1934 printf("stream rcv dma %d len %d off %d spd %d\n",
1935 sub, len, off, spd);
1936#endif
1937 if(xferq->queued >= xferq->maxq) {
1938 printf("receive queue is full\n");
1939 goto err;
1940 }
1941 /* XXX get xfer from xfer queue, we don't need copy for
1942 per packet mode */
1943 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
1944 vec[0].iov_len);
1945 if(xfer == NULL) goto err;
1946 fw_rcv_copy(xfer, vec, nvec);
1947 xfer->spd = spd;
1948 s = splfw();
1949 xferq->queued++;
1950 STAILQ_INSERT_TAIL(&xferq->q, xfer, link);
1951 splx(s);
1952 sc = device_get_softc(fc->bdev);
1953#if __FreeBSD_version >= 500000
1954 if (SEL_WAITING(&xferq->rsel))
1955#else
1956 if (&xferq->rsel.si_pid != 0)
1957#endif
1958 selwakeup(&xferq->rsel);
1959 if (xferq->flag & FWXFERQ_WAKEUP) {
1960 xferq->flag &= ~FWXFERQ_WAKEUP;
1961 wakeup((caddr_t)xferq);
1962 }
1963 if (xferq->flag & FWXFERQ_HANDLER) {
1964 xferq->hand(xferq);
1965 }
1966 return;
1967 break;
1968 }
1969 default:
1970 printf("fw_rcv: unknow tcode %d\n", tcode);
1971 break;
1972 }
1973err:
1974 return;
1975}
1976
1977/*
1978 * Post process for Bus Manager election process.
1979 */
1980static void
1981fw_try_bmr_callback(struct fw_xfer *xfer)
1982{
1983 struct fw_pkt *rfp;
1984 struct firewire_comm *fc;
1985 int bmr;
1986
1987 if (xfer == NULL)
1988 return;
1989 fc = xfer->fc;
1990 if (xfer->resp != 0)
1991 goto error;
1992 if (xfer->send.buf == NULL)
1993 goto error;
1994 if (xfer->recv.buf == NULL)
1995 goto error;
1996 rfp = (struct fw_pkt *)xfer->recv.buf;
1997 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE)
1998 goto error;
1999
2000 bmr = ntohl(rfp->mode.lres.payload[0]);
2001 if (bmr == 0x3f)
2002 bmr = fc->nodeid;
2003
2004 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
2005 fw_xfer_free(xfer);
2006 fw_bmr(fc);
2007 return;
2008
2009error:
2010 device_printf(fc->bdev, "bus manager election failed\n");
2011 fw_xfer_free(xfer);
2012}
2013
2014
2015/*
2016 * To candidate Bus Manager election process.
2017 */
2018static void
2019fw_try_bmr(void *arg)
2020{
2021 struct fw_xfer *xfer;
2022 struct firewire_comm *fc = (struct firewire_comm *)arg;
2023 struct fw_pkt *fp;
2024 int err = 0;
2025
2026 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20);
2027 if(xfer == NULL){
2028 return;
2029 }
2030 xfer->spd = 0;
2031 fc->status = FWBUSMGRELECT;
2032
2033 fp = (struct fw_pkt *)xfer->send.buf;
2034 fp->mode.lreq.dest_hi = 0xffff;
2035 fp->mode.lreq.tlrt = 0;
2036 fp->mode.lreq.tcode = FWTCODE_LREQ;
2037 fp->mode.lreq.pri = 0;
2038 fp->mode.lreq.src = 0;
2039 fp->mode.lreq.len = 8;
2040 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP;
2041 xfer->dst = FWLOCALBUS | fc->irm;
2042 fp->mode.lreq.dst = xfer->dst;
2043 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
2044 fp->mode.lreq.payload[0] = htonl(0x3f);
2045 fp->mode.lreq.payload[1] = htonl(fc->nodeid);
2046 xfer->act.hand = fw_try_bmr_callback;
2047
2048 err = fw_asyreq(fc, -1, xfer);
2049 if(err){
2050 fw_xfer_free( xfer);
2051 return;
2052 }
2053 return;
2054}
2055
2056#ifdef FW_VMACCESS
2057/*
2058 * Software implementation for physical memory block access.
2059 * XXX:Too slow, usef for debug purpose only.
2060 */
2061static void
2062fw_vmaccess(struct fw_xfer *xfer){
2063 struct fw_pkt *rfp, *sfp = NULL;
2064 u_int32_t *ld = (u_int32_t *)xfer->recv.buf;
2065
2066 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
2067 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2068 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2069 if(xfer->resp != 0){
2070 fw_xfer_free( xfer);
2071 return;
2072 }
2073 if(xfer->recv.buf == NULL){
2074 fw_xfer_free( xfer);
2075 return;
2076 }
2077 rfp = (struct fw_pkt *)xfer->recv.buf;
2078 switch(rfp->mode.hdr.tcode){
2079 /* XXX need fix for 64bit arch */
2080 case FWTCODE_WREQB:
2081 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2082 xfer->send.len = 12;
2083 sfp = (struct fw_pkt *)xfer->send.buf;
2084 bcopy(rfp->mode.wreqb.payload,
2085 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2086 sfp->mode.wres.tcode = FWTCODE_WRES;
2087 sfp->mode.wres.rtcode = 0;
2088 break;
2089 case FWTCODE_WREQQ:
2090 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2091 xfer->send.len = 12;
2092 sfp->mode.wres.tcode = FWTCODE_WRES;
2093 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2094 sfp->mode.wres.rtcode = 0;
2095 break;
2096 case FWTCODE_RREQB:
2097 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2098 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2099 sfp = (struct fw_pkt *)xfer->send.buf;
2100 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2101 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
2102 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2103 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2104 sfp->mode.rresb.rtcode = 0;
2105 sfp->mode.rresb.extcode = 0;
2106 break;
2107 case FWTCODE_RREQQ:
2108 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2109 xfer->send.len = 16;
2110 sfp = (struct fw_pkt *)xfer->send.buf;
2111 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2112 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2113 sfp->mode.rresb.rtcode = 0;
2114 break;
2115 default:
2116 fw_xfer_free( xfer);
2117 return;
2118 }
2119 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2120 xfer->dst = ntohs(rfp->mode.hdr.src);
2121 xfer->act.hand = fw_xfer_free;
2122 xfer->retry_req = fw_asybusy;
2123
2124 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2125 sfp->mode.hdr.pri = 0;
2126
2127 fw_asyreq(xfer->fc, -1, xfer);
2128/**/
2129 return;
2130}
2131#endif
2132
2133/*
2134 * CRC16 check-sum for IEEE1394 register blocks.
2135 */
2136u_int16_t
2137fw_crc16(u_int32_t *ptr, u_int32_t len){
2138 u_int32_t i, sum, crc = 0;
2139 int shift;
2140 len = (len + 3) & ~3;
2141 for(i = 0 ; i < len ; i+= 4){
2142 for( shift = 28 ; shift >= 0 ; shift -= 4){
2143 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2144 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2145 }
2146 crc &= 0xffff;
2147 }
2148 return((u_int16_t) crc);
2149}
2150
2151static int
2152fw_bmr(struct firewire_comm *fc)
2153{
2154 struct fw_device fwdev;
2155 union fw_self_id *self_id;
2156 int cmstr;
2157
2158 /* Check to see if the current root node is cycle master capable */
2159 self_id = &fc->topology_map->self_id[fc->max_node];
2160 if (fc->max_node > 0) {
2161 /* XXX check cmc bit of businfo block rather than contender */
2162 if (self_id->p0.link_active && self_id->p0.contender)
2163 cmstr = fc->max_node;
2164 else {
2165 device_printf(fc->bdev,
2166 "root node is not cycle master capable\n");
2167 /* XXX shall we be the cycle master? */
2168 cmstr = fc->nodeid;
2169 /* XXX need bus reset */
2170 }
2171 } else
2172 cmstr = -1;
2173
2174 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID));
2175 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
2176 /* We are not the bus manager */
2177 printf("\n");
2178 return(0);
2179 }
2180 printf("(me)\n");
2181
2182 /* Optimize gapcount */
2183 if(fc->max_hop <= MAX_GAPHOP )
2184 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
2185 /* If we are the cycle master, nothing to do */
2186 if (cmstr == fc->nodeid || cmstr == -1)
2187 return 0;
2188 /* Bus probe has not finished, make dummy fwdev for cmstr */
2189 bzero(&fwdev, sizeof(fwdev));
2190 fwdev.fc = fc;
2191 fwdev.dst = cmstr;
2192 fwdev.speed = 0;
2193 fwdev.maxrec = 8; /* 512 */
2194 fwdev.status = FWDEVINIT;
2195 /* Set cmstr bit on the cycle master */
2196 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2197 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 8),
2198 fw_asy_callback_free);
2199
2200 return 0;
2201}
2202
2203DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0);
2204MODULE_VERSION(firewire, 1);