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HAMMER 60I/Many: Mirroring
[dragonfly.git] / sys / bus / firewire / firewire.c
blob6dffc25b8895a95eaa5492514d5875ad0857eb5c
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: src/sys/dev/firewire/firewire.c,v 1.68 2004/01/08 14:58:09 simokawa Exp $
35 * $DragonFly: src/sys/bus/firewire/firewire.c,v 1.21 2008/01/06 16:55:49 swildner Exp $
36 *
37 */
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/types.h>
42
43 #include <sys/kernel.h>
44 #include <sys/malloc.h>
45 #include <sys/conf.h>
46 #include <sys/bus.h> /* used by smbus and newbus */
47 #include <sys/sysctl.h>
48 #include <sys/thread2.h>
49
50 #if defined(__DragonFly__) || __FreeBSD_version < 500000
51 #include <machine/clock.h> /* for DELAY() */
52 #endif
53
54 #ifdef __DragonFly__
55 #include "firewire.h"
56 #include "firewirereg.h"
57 #include "fwmem.h"
58 #include "iec13213.h"
59 #include "iec68113.h"
60 #else
61 #include <dev/firewire/firewire.h>
62 #include <dev/firewire/firewirereg.h>
63 #include <dev/firewire/fwmem.h>
64 #include <dev/firewire/iec13213.h>
65 #include <dev/firewire/iec68113.h>
66 #endif
67
68 struct crom_src_buf {
69 struct crom_src src;
70 struct crom_chunk root;
71 struct crom_chunk vendor;
72 struct crom_chunk hw;
73 };
74
75 int firewire_debug=0, try_bmr=1, hold_count=3;
76 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
77 "FireWire driver debug flag");
78 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
79 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
80 "Try to be a bus manager");
81 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0,
82 "Number of count of bus resets for removing lost device information");
83
84 MALLOC_DEFINE(M_FW, "firewire", "FireWire");
85 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
86
87 #define FW_MAXASYRTY 4
88
89 devclass_t firewire_devclass;
90
91 static int firewire_probe (device_t);
92 static int firewire_attach (device_t);
93 static int firewire_detach (device_t);
94 static int firewire_resume (device_t);
95 #if 0
96 static int firewire_shutdown (device_t);
97 #endif
98 static device_t firewire_add_child (device_t, device_t, int, const char *, int);
99 static void fw_try_bmr (void *);
100 static void fw_try_bmr_callback (struct fw_xfer *);
101 static void fw_asystart (struct fw_xfer *);
102 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *);
103 static void fw_bus_probe (struct firewire_comm *);
104 static void fw_bus_explore (struct firewire_comm *);
105 static void fw_bus_explore_callback (struct fw_xfer *);
106 static void fw_attach_dev (struct firewire_comm *);
107 #ifdef FW_VMACCESS
108 static void fw_vmaccess (struct fw_xfer *);
109 #endif
110 struct fw_xfer *asyreqq (struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t,
111 u_int32_t, u_int32_t, void (*)(struct fw_xfer *));
112 static int fw_bmr (struct firewire_comm *);
113
114 /*
115 * note: bus_generic_identify() will automatically install a "firewire"
116 * device under any attached fwohci device.
117 */
118 static device_method_t firewire_methods[] = {
119 /* Device interface */
120 DEVMETHOD(device_identify, bus_generic_identify),
121 DEVMETHOD(device_probe, firewire_probe),
122 DEVMETHOD(device_attach, firewire_attach),
123 DEVMETHOD(device_detach, firewire_detach),
124 DEVMETHOD(device_suspend, bus_generic_suspend),
125 DEVMETHOD(device_resume, firewire_resume),
126 DEVMETHOD(device_shutdown, bus_generic_shutdown),
127
128 /* Bus interface */
129 DEVMETHOD(bus_add_child, firewire_add_child),
130 DEVMETHOD(bus_print_child, bus_generic_print_child),
131
132 { 0, 0 }
133 };
134 char *linkspeed[] = {
135 "S100", "S200", "S400", "S800",
136 "S1600", "S3200", "undef", "undef"
137 };
138
139 static char *tcode_str[] = {
140 "WREQQ", "WREQB", "WRES", "undef",
141 "RREQQ", "RREQB", "RRESQ", "RRESB",
142 "CYCS", "LREQ", "STREAM", "LRES",
143 "undef", "undef", "PHY", "undef"
144 };
145
146 /* IEEE-1394a Table C-2 Gap count as a function of hops*/
147 #define MAX_GAPHOP 15
148 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
149 21, 24, 26, 29, 32, 35, 37, 40};
150
151 static driver_t firewire_driver = {
152 "firewire",
153 firewire_methods,
154 sizeof(struct firewire_softc),
155 };
156
157 /*
158 * Lookup fwdev by node id.
159 */
160 struct fw_device *
161 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
162 {
163 struct fw_device *fwdev;
164
165 crit_enter();
166 STAILQ_FOREACH(fwdev, &fc->devices, link)
167 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL)
168 break;
169 crit_exit();
170
171 return fwdev;
172 }
173
174 /*
175 * Lookup fwdev by EUI64.
176 */
177 struct fw_device *
178 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
179 {
180 struct fw_device *fwdev;
181
182 crit_enter();
183 STAILQ_FOREACH(fwdev, &fc->devices, link)
184 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
185 break;
186 crit_exit();
187
188 if(fwdev == NULL) return NULL;
189 if(fwdev->status == FWDEVINVAL) return NULL;
190 return fwdev;
191 }
192
193 /*
194 * Async. request procedure for userland application.
195 */
196 int
197 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
198 {
199 int err = 0;
200 struct fw_xferq *xferq;
201 int tl = 0, len;
202 struct fw_pkt *fp;
203 int tcode;
204 struct tcode_info *info;
205
206 if(xfer == NULL) return EINVAL;
207 if(xfer->act.hand == NULL){
208 kprintf("act.hand == NULL\n");
209 return EINVAL;
210 }
211 fp = &xfer->send.hdr;
212
213 tcode = fp->mode.common.tcode & 0xf;
214 info = &fc->tcode[tcode];
215 if (info->flag == 0) {
216 kprintf("invalid tcode=%x\n", tcode);
217 return EINVAL;
218 }
219 if (info->flag & FWTI_REQ)
220 xferq = fc->atq;
221 else
222 xferq = fc->ats;
223 len = info->hdr_len;
224 if (xfer->send.pay_len > MAXREC(fc->maxrec)) {
225 kprintf("send.pay_len > maxrec\n");
226 return EINVAL;
227 }
228 if (info->flag & FWTI_BLOCK_STR)
229 len = fp->mode.stream.len;
230 else if (info->flag & FWTI_BLOCK_ASY)
231 len = fp->mode.rresb.len;
232 else
233 len = 0;
234 if (len != xfer->send.pay_len){
235 kprintf("len(%d) != send.pay_len(%d) %s(%x)\n",
236 len, xfer->send.pay_len, tcode_str[tcode], tcode);
237 return EINVAL;
238 }
239
240 if(xferq->start == NULL){
241 kprintf("xferq->start == NULL\n");
242 return EINVAL;
243 }
244 if(!(xferq->queued < xferq->maxq)){
245 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
246 xferq->queued);
247 return EINVAL;
248 }
249
250 microtime(&xfer->tv);
251 if (info->flag & FWTI_TLABEL) {
252 if((tl = fw_get_tlabel(fc, xfer)) == -1 )
253 return EIO;
254 fp->mode.hdr.tlrt = tl << 2;
255 }
256
257 xfer->tl = tl;
258 xfer->resp = 0;
259 xfer->fc = fc;
260 xfer->q = xferq;
261 xfer->retry_req = fw_asybusy;
262
263 fw_asystart(xfer);
264 return err;
265 }
266 /*
267 * Wakeup blocked process.
268 */
269 void
270 fw_asy_callback(struct fw_xfer *xfer){
271 wakeup(xfer);
272 return;
273 }
274 /*
275 * Postpone to later retry.
276 */
277 void
278 fw_asybusy(struct fw_xfer *xfer)
279 {
280 kprintf("fw_asybusy\n");
281 /*
282 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
283 */
284 #if 0
285 DELAY(20000);
286 #endif
287 fw_asystart(xfer);
288 return;
289 }
290
291 /*
292 * Async. request with given xfer structure.
293 */
294 static void
295 fw_asystart(struct fw_xfer *xfer)
296 {
297 struct firewire_comm *fc = xfer->fc;
298
299 if(xfer->retry++ >= fc->max_asyretry){
300 device_printf(fc->bdev, "max_asyretry exceeded\n");
301 xfer->resp = EBUSY;
302 xfer->state = FWXF_BUSY;
303 xfer->act.hand(xfer);
304 return;
305 }
306 #if 0 /* XXX allow bus explore packets only after bus rest */
307 if (fc->status < FWBUSEXPLORE) {
308 xfer->resp = EAGAIN;
309 xfer->state = FWXF_BUSY;
310 if (xfer->act.hand != NULL)
311 xfer->act.hand(xfer);
312 return;
313 }
314 #endif
315 crit_enter();
316 xfer->state = FWXF_INQ;
317 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
318 xfer->q->queued ++;
319 crit_exit();
320 /* XXX just queue for mbuf */
321 if (xfer->mbuf == NULL)
322 xfer->q->start(fc);
323 return;
324 }
325
326 static int
327 firewire_probe(device_t dev)
328 {
329 device_set_desc(dev, "IEEE1394(FireWire) bus");
330 return (0);
331 }
332
333 static void
334 firewire_xfer_timeout(struct firewire_comm *fc)
335 {
336 struct fw_xfer *xfer;
337 struct tlabel *tl;
338 struct timeval tv;
339 struct timeval split_timeout;
340 int i;
341
342 split_timeout.tv_sec = 0;
343 split_timeout.tv_usec = 200 * 1000; /* 200 msec */
344
345 microtime(&tv);
346 timevalsub(&tv, &split_timeout);
347
348 crit_enter();
349 for (i = 0; i < 0x40; i ++) {
350 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
351 xfer = tl->xfer;
352 if (timevalcmp(&xfer->tv, &tv, >))
353 /* the rests are newer than this */
354 break;
355 if (xfer->state == FWXF_START)
356 /* not sent yet */
357 break;
358 device_printf(fc->bdev,
359 "split transaction timeout dst=0x%x tl=0x%x state=%d\n",
360 xfer->send.hdr.mode.hdr.dst, i, xfer->state);
361 xfer->resp = ETIMEDOUT;
362 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
363 fw_xfer_done(xfer);
364 }
365 }
366 crit_exit();
367 }
368
369 #define WATCHDOC_HZ 10
370 static void
371 firewire_watchdog(void *arg)
372 {
373 struct firewire_comm *fc;
374 static int watchdoc_clock = 0;
375
376 fc = (struct firewire_comm *)arg;
377
378 /*
379 * At boot stage, the device interrupt is disabled and
380 * We encounter a timeout easily. To avoid this,
381 * ignore clock interrupt for a while.
382 */
383 if (watchdoc_clock > WATCHDOC_HZ * 15) {
384 firewire_xfer_timeout(fc);
385 fc->timeout(fc);
386 } else
387 watchdoc_clock ++;
388
389 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ,
390 (void *)firewire_watchdog, (void *)fc);
391 }
392
393 /*
394 * The attach routine.
395 */
396 static int
397 firewire_attach(device_t dev)
398 {
399 int unit;
400 struct firewire_softc *sc = device_get_softc(dev);
401 device_t pa = device_get_parent(dev);
402 struct firewire_comm *fc;
403
404 fc = (struct firewire_comm *)device_get_softc(pa);
405 sc->fc = fc;
406 fc->status = FWBUSNOTREADY;
407
408 unit = device_get_unit(dev);
409 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
410
411 fwdev_makedev(sc);
412
413 CALLOUT_INIT(&sc->fc->timeout_callout);
414 CALLOUT_INIT(&sc->fc->bmr_callout);
415 CALLOUT_INIT(&sc->fc->retry_probe_callout);
416 CALLOUT_INIT(&sc->fc->busprobe_callout);
417
418 callout_reset(&sc->fc->timeout_callout, hz,
419 (void *)firewire_watchdog, (void *)sc->fc);
420
421 /* Locate our children */
422 bus_generic_probe(dev);
423
424 /* launch attachement of the added children */
425 bus_generic_attach(dev);
426
427 /* bus_reset */
428 fw_busreset(fc);
429 fc->ibr(fc);
430
431 return 0;
432 }
433
434 /*
435 * Attach it as child.
436 */
437 static device_t
438 firewire_add_child(device_t bus, device_t parent, int order, const char *name, int unit)
439 {
440 device_t child;
441 struct firewire_softc *sc;
442
443 sc = (struct firewire_softc *)device_get_softc(parent);
444 child = device_add_child(parent, name, unit);
445 if (child) {
446 device_set_ivars(child, sc->fc);
447 device_probe_and_attach(child);
448 }
449
450 return child;
451 }
452
453 static int
454 firewire_resume(device_t dev)
455 {
456 struct firewire_softc *sc;
457
458 sc = (struct firewire_softc *)device_get_softc(dev);
459 sc->fc->status = FWBUSNOTREADY;
460
461 bus_generic_resume(dev);
462
463 return(0);
464 }
465
466 /*
467 * Dettach it.
468 */
469 static int
470 firewire_detach(device_t dev)
471 {
472 struct firewire_softc *sc;
473 struct csrdir *csrd, *next;
474 struct fw_device *fwdev, *fwdev_next;
475 int err;
476
477 sc = (struct firewire_softc *)device_get_softc(dev);
478 if ((err = fwdev_destroydev(sc)) != 0)
479 return err;
480
481 if ((err = bus_generic_detach(dev)) != 0)
482 return err;
483
484 callout_stop(&sc->fc->timeout_callout);
485 callout_stop(&sc->fc->bmr_callout);
486 callout_stop(&sc->fc->retry_probe_callout);
487 callout_stop(&sc->fc->busprobe_callout);
488
489 /* XXX xfree_free and callout_stop on all xfers */
490 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL;
491 fwdev = fwdev_next) {
492 fwdev_next = STAILQ_NEXT(fwdev, link);
493 kfree(fwdev, M_FW);
494 }
495 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) {
496 next = SLIST_NEXT(csrd, link);
497 kfree(csrd, M_FW);
498 }
499 kfree(sc->fc->topology_map, M_FW);
500 kfree(sc->fc->speed_map, M_FW);
501 kfree(sc->fc->crom_src_buf, M_FW);
502 return(0);
503 }
504 #if 0
505 static int
506 firewire_shutdown( device_t dev )
507 {
508 return 0;
509 }
510 #endif
511
512
513 static void
514 fw_xferq_drain(struct fw_xferq *xferq)
515 {
516 struct fw_xfer *xfer;
517
518 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
519 STAILQ_REMOVE_HEAD(&xferq->q, link);
520 xferq->queued --;
521 xfer->resp = EAGAIN;
522 xfer->state = FWXF_SENTERR;
523 fw_xfer_done(xfer);
524 }
525 }
526
527 void
528 fw_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 static void
539 fw_reset_csr(struct firewire_comm *fc)
540 {
541 int i;
542
543 CSRARC(fc, STATE_CLEAR)
544 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
545 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
546 CSRARC(fc, NODE_IDS) = 0x3f;
547
548 CSRARC(fc, TOPO_MAP + 8) = 0;
549 fc->irm = -1;
550
551 fc->max_node = -1;
552
553 for(i = 2; i < 0x100/4 - 2 ; i++){
554 CSRARC(fc, SPED_MAP + i * 4) = 0;
555 }
556 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
557 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
558 CSRARC(fc, RESET_START) = 0;
559 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
560 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
561 CSRARC(fc, CYCLE_TIME) = 0x0;
562 CSRARC(fc, BUS_TIME) = 0x0;
563 CSRARC(fc, BUS_MGR_ID) = 0x3f;
564 CSRARC(fc, BANDWIDTH_AV) = 4915;
565 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
566 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
567 CSRARC(fc, IP_CHANNELS) = (1 << 31);
568
569 CSRARC(fc, CONF_ROM) = 0x04 << 24;
570 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
571 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
572 1 << 28 | 0xff << 16 | 0x09 << 8;
573 CSRARC(fc, CONF_ROM + 0xc) = 0;
574
575 /* DV depend CSRs see blue book */
576 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
577 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
578
579 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
580 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
581 }
582
583 static void
584 fw_init_crom(struct firewire_comm *fc)
585 {
586 struct crom_src *src;
587
588 fc->crom_src_buf = (struct crom_src_buf *)
589 kmalloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO);
590
591 src = &fc->crom_src_buf->src;
592 bzero(src, sizeof(struct crom_src));
593
594 /* BUS info sample */
595 src->hdr.info_len = 4;
596
597 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
598
599 src->businfo.irmc = 1;
600 src->businfo.cmc = 1;
601 src->businfo.isc = 1;
602 src->businfo.bmc = 1;
603 src->businfo.pmc = 0;
604 src->businfo.cyc_clk_acc = 100;
605 src->businfo.max_rec = fc->maxrec;
606 src->businfo.max_rom = MAXROM_4;
607 src->businfo.generation = 1;
608 src->businfo.link_spd = fc->speed;
609
610 src->businfo.eui64.hi = fc->eui.hi;
611 src->businfo.eui64.lo = fc->eui.lo;
612
613 STAILQ_INIT(&src->chunk_list);
614
615 fc->crom_src = src;
616 fc->crom_root = &fc->crom_src_buf->root;
617 }
618
619 static void
620 fw_reset_crom(struct firewire_comm *fc)
621 {
622 struct crom_src_buf *buf;
623 struct crom_src *src;
624 struct crom_chunk *root;
625
626 if (fc->crom_src_buf == NULL)
627 fw_init_crom(fc);
628
629 buf = fc->crom_src_buf;
630 src = fc->crom_src;
631 root = fc->crom_root;
632
633 STAILQ_INIT(&src->chunk_list);
634
635 bzero(root, sizeof(struct crom_chunk));
636 crom_add_chunk(src, NULL, root, 0);
637 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
638 /* private company_id */
639 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
640 #ifdef __DragonFly__
641 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project");
642 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version);
643 #else
644 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project");
645 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version);
646 #endif
647 crom_add_simple_text(src, root, &buf->hw, hostname);
648 }
649
650 /*
651 * Called after bus reset.
652 */
653 void
654 fw_busreset(struct firewire_comm *fc)
655 {
656 struct firewire_dev_comm *fdc;
657 struct crom_src *src;
658 device_t *devlistp;
659 void *newrom;
660 int i, devcnt;
661
662 switch(fc->status){
663 case FWBUSMGRELECT:
664 callout_stop(&fc->bmr_callout);
665 break;
666 default:
667 break;
668 }
669 fc->status = FWBUSRESET;
670 fw_reset_csr(fc);
671 fw_reset_crom(fc);
672
673 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) {
674 for( i = 0 ; i < devcnt ; i++)
675 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
676 fdc = device_get_softc(devlistp[i]);
677 if (fdc->post_busreset != NULL)
678 fdc->post_busreset(fdc);
679 }
680 kfree(devlistp, M_TEMP);
681 }
682
683 newrom = kmalloc(CROMSIZE, M_FW, M_WAITOK | M_ZERO);
684 src = &fc->crom_src_buf->src;
685 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
686 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
687 /* bump generation and reload */
688 src->businfo.generation ++;
689 /* generation must be between 0x2 and 0xF */
690 if (src->businfo.generation < 2)
691 src->businfo.generation ++;
692 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
693 bcopy(newrom, (void *)fc->config_rom, CROMSIZE);
694 }
695 kfree(newrom, M_FW);
696 }
697
698 /* Call once after reboot */
699 void
700 fw_init(struct firewire_comm *fc)
701 {
702 int i;
703 struct csrdir *csrd;
704 #ifdef FW_VMACCESS
705 struct fw_xfer *xfer;
706 struct fw_bind *fwb;
707 #endif
708
709 fc->max_asyretry = FW_MAXASYRTY;
710
711 fc->arq->queued = 0;
712 fc->ars->queued = 0;
713 fc->atq->queued = 0;
714 fc->ats->queued = 0;
715
716 fc->arq->buf = NULL;
717 fc->ars->buf = NULL;
718 fc->atq->buf = NULL;
719 fc->ats->buf = NULL;
720
721 fc->arq->flag = 0;
722 fc->ars->flag = 0;
723 fc->atq->flag = 0;
724 fc->ats->flag = 0;
725
726 STAILQ_INIT(&fc->atq->q);
727 STAILQ_INIT(&fc->ats->q);
728
729 for( i = 0 ; i < fc->nisodma ; i ++ ){
730 fc->it[i]->queued = 0;
731 fc->ir[i]->queued = 0;
732
733 fc->it[i]->start = NULL;
734 fc->ir[i]->start = NULL;
735
736 fc->it[i]->buf = NULL;
737 fc->ir[i]->buf = NULL;
738
739 fc->it[i]->flag = FWXFERQ_STREAM;
740 fc->ir[i]->flag = FWXFERQ_STREAM;
741
742 STAILQ_INIT(&fc->it[i]->q);
743 STAILQ_INIT(&fc->ir[i]->q);
744
745 STAILQ_INIT(&fc->it[i]->binds);
746 STAILQ_INIT(&fc->ir[i]->binds);
747 }
748
749 fc->arq->maxq = FWMAXQUEUE;
750 fc->ars->maxq = FWMAXQUEUE;
751 fc->atq->maxq = FWMAXQUEUE;
752 fc->ats->maxq = FWMAXQUEUE;
753
754 for( i = 0 ; i < fc->nisodma ; i++){
755 fc->ir[i]->maxq = FWMAXQUEUE;
756 fc->it[i]->maxq = FWMAXQUEUE;
757 }
758 /* Initialize csr registers */
759 fc->topology_map = kmalloc(sizeof(struct fw_topology_map),
760 M_FW, M_WAITOK | M_ZERO);
761 fc->speed_map = kmalloc(sizeof(struct fw_speed_map),
762 M_FW, M_WAITOK | M_ZERO);
763 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
764 CSRARC(fc, TOPO_MAP + 4) = 1;
765 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
766 CSRARC(fc, SPED_MAP + 4) = 1;
767
768 STAILQ_INIT(&fc->devices);
769
770 /* Initialize csr ROM work space */
771 SLIST_INIT(&fc->ongocsr);
772 SLIST_INIT(&fc->csrfree);
773 for( i = 0 ; i < FWMAXCSRDIR ; i++){
774 csrd = kmalloc(sizeof(struct csrdir), M_FW, M_WAITOK);
775 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
776 }
777
778 /* Initialize Async handlers */
779 STAILQ_INIT(&fc->binds);
780 for( i = 0 ; i < 0x40 ; i++){
781 STAILQ_INIT(&fc->tlabels[i]);
782 }
783
784 /* DV depend CSRs see blue book */
785 #if 0
786 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
787 CSRARC(fc, oPCR) = 0x8000007a;
788 for(i = 4 ; i < 0x7c/4 ; i+=4){
789 CSRARC(fc, i + oPCR) = 0x8000007a;
790 }
791
792 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
793 CSRARC(fc, iPCR) = 0x803f0000;
794 for(i = 4 ; i < 0x7c/4 ; i+=4){
795 CSRARC(fc, i + iPCR) = 0x0;
796 }
797 #endif
798
799 fc->crom_src_buf = NULL;
800
801 #ifdef FW_VMACCESS
802 xfer = fw_xfer_alloc();
803 if(xfer == NULL) return;
804
805 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
806 xfer->act.hand = fw_vmaccess;
807 xfer->fc = fc;
808 xfer->sc = NULL;
809
810 fwb->start_hi = 0x2;
811 fwb->start_lo = 0;
812 fwb->addrlen = 0xffffffff;
813 fwb->xfer = xfer;
814 fw_bindadd(fc, fwb);
815 #endif
816 }
817
818 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\
819 ((fwb)->end < (addr))?1:0)
820
821 /*
822 * To lookup binded process from IEEE1394 address.
823 */
824 struct fw_bind *
825 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo)
826 {
827 u_int64_t addr;
828 struct fw_bind *tfw;
829
830 addr = ((u_int64_t)dest_hi << 32) | dest_lo;
831 STAILQ_FOREACH(tfw, &fc->binds, fclist)
832 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0)
833 return(tfw);
834 return(NULL);
835 }
836
837 /*
838 * To bind IEEE1394 address block to process.
839 */
840 int
841 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
842 {
843 struct fw_bind *tfw, *prev = NULL;
844
845 if (fwb->start > fwb->end) {
846 kprintf("%s: invalid range\n", __func__);
847 return EINVAL;
848 }
849
850 STAILQ_FOREACH(tfw, &fc->binds, fclist) {
851 if (fwb->end < tfw->start)
852 break;
853 prev = tfw;
854 }
855 if (prev == NULL) {
856 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
857 goto out;
858 }
859 if (prev->end < fwb->start) {
860 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist);
861 goto out;
862 }
863
864 kprintf("%s: bind failed\n", __func__);
865 return (EBUSY);
866
867 out:
868 if (fwb->act_type == FWACT_CH)
869 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist);
870 return (0);
871 }
872
873 /*
874 * To free IEEE1394 address block.
875 */
876 int
877 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
878 {
879 #if 0
880 struct fw_xfer *xfer, *next;
881 #endif
882 struct fw_bind *tfw;
883
884 crit_enter();
885 STAILQ_FOREACH(tfw, &fc->binds, fclist)
886 if (tfw == fwb) {
887 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
888 goto found;
889 }
890
891 kprintf("%s: no such bind\n", __func__);
892 crit_exit();
893 return (1);
894 found:
895 #if 0
896 /* shall we do this? */
897 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
898 next = STAILQ_NEXT(xfer, link);
899 fw_xfer_free(xfer);
900 }
901 STAILQ_INIT(&fwb->xferlist);
902 #endif
903
904 crit_exit();
905 return 0;
906 }
907
908 /*
909 * To free transaction label.
910 */
911 static void
912 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
913 {
914 struct tlabel *tl;
915
916 crit_enter();
917 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
918 tl = STAILQ_NEXT(tl, link)){
919 if(tl->xfer == xfer){
920 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
921 kfree(tl, M_FW);
922 break;
923 }
924 }
925 crit_exit();
926 }
927
928 /*
929 * To obtain XFER structure by transaction label.
930 */
931 static struct fw_xfer *
932 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
933 {
934 struct fw_xfer *xfer;
935 struct tlabel *tl;
936
937 crit_enter();
938
939 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
940 tl = STAILQ_NEXT(tl, link)){
941 if(tl->xfer->send.hdr.mode.hdr.dst == node){
942 xfer = tl->xfer;
943 crit_exit();
944 if (firewire_debug > 2)
945 kprintf("fw_tl2xfer: found tl=%d\n", tlabel);
946 return(xfer);
947 }
948 }
949 if (firewire_debug > 1)
950 kprintf("fw_tl2xfer: not found tl=%d\n", tlabel);
951 crit_exit();
952 return(NULL);
953 }
954
955 /*
956 * To allocate IEEE1394 XFER structure.
957 */
958 struct fw_xfer *
959 fw_xfer_alloc(struct malloc_type *type)
960 {
961 struct fw_xfer *xfer;
962
963 xfer = kmalloc(sizeof(struct fw_xfer), type, M_INTWAIT | M_ZERO);
964 xfer->malloc = type;
965
966 return xfer;
967 }
968
969 struct fw_xfer *
970 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
971 {
972 struct fw_xfer *xfer;
973
974 xfer = fw_xfer_alloc(type);
975 xfer->send.pay_len = send_len;
976 xfer->recv.pay_len = recv_len;
977 if (xfer == NULL)
978 return(NULL);
979 if (send_len > 0) {
980 xfer->send.payload = kmalloc(send_len, type, M_INTWAIT | M_ZERO);
981 if (xfer->send.payload == NULL) {
982 fw_xfer_free(xfer);
983 return(NULL);
984 }
985 }
986 if (recv_len > 0) {
987 xfer->recv.payload = kmalloc(recv_len, type, M_INTWAIT);
988 if (xfer->recv.payload == NULL) {
989 if (xfer->send.payload != NULL)
990 kfree(xfer->send.payload, type);
991 fw_xfer_free(xfer);
992 return(NULL);
993 }
994 }
995 return(xfer);
996 }
997
998 /*
999 * IEEE1394 XFER post process.
1000 */
1001 void
1002 fw_xfer_done(struct fw_xfer *xfer)
1003 {
1004 if (xfer->act.hand == NULL) {
1005 kprintf("act.hand == NULL\n");
1006 return;
1007 }
1008
1009 if (xfer->fc == NULL)
1010 panic("fw_xfer_done: why xfer->fc is NULL?");
1011
1012 xfer->act.hand(xfer);
1013 }
1014
1015 void
1016 fw_xfer_unload(struct fw_xfer* xfer)
1017 {
1018 if(xfer == NULL ) return;
1019 if(xfer->state == FWXF_INQ){
1020 kprintf("fw_xfer_free FWXF_INQ\n");
1021 crit_enter();
1022 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
1023 xfer->q->queued --;
1024 crit_exit();
1025 }
1026 if (xfer->fc != NULL) {
1027 #if 1
1028 if(xfer->state == FWXF_START)
1029 /*
1030 * This could happen if:
1031 * 1. We call fwohci_arcv() before fwohci_txd().
1032 * 2. firewire_watch() is called.
1033 */
1034 kprintf("fw_xfer_free FWXF_START\n");
1035 #endif
1036 fw_tl_free(xfer->fc, xfer);
1037 }
1038 xfer->state = FWXF_INIT;
1039 xfer->resp = 0;
1040 xfer->retry = 0;
1041 }
1042 /*
1043 * To free IEEE1394 XFER structure.
1044 */
1045 void
1046 fw_xfer_free_buf( struct fw_xfer* xfer)
1047 {
1048 if (xfer == NULL) {
1049 kprintf("%s: xfer == NULL\n", __func__);
1050 return;
1051 }
1052 fw_xfer_unload(xfer);
1053 if(xfer->send.payload != NULL){
1054 kfree(xfer->send.payload, xfer->malloc);
1055 }
1056 if(xfer->recv.payload != NULL){
1057 kfree(xfer->recv.payload, xfer->malloc);
1058 }
1059 kfree(xfer, xfer->malloc);
1060 }
1061
1062 void
1063 fw_xfer_free( struct fw_xfer* xfer)
1064 {
1065 if (xfer == NULL) {
1066 kprintf("%s: xfer == NULL\n", __func__);
1067 return;
1068 }
1069 fw_xfer_unload(xfer);
1070 kfree(xfer, xfer->malloc);
1071 }
1072
1073 void
1074 fw_asy_callback_free(struct fw_xfer *xfer)
1075 {
1076 #if 0
1077 kprintf("asyreq done state=%d resp=%d\n",
1078 xfer->state, xfer->resp);
1079 #endif
1080 fw_xfer_free(xfer);
1081 }
1082
1083 /*
1084 * To configure PHY.
1085 */
1086 static void
1087 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
1088 {
1089 struct fw_xfer *xfer;
1090 struct fw_pkt *fp;
1091
1092 fc->status = FWBUSPHYCONF;
1093
1094 xfer = fw_xfer_alloc(M_FWXFER);
1095 if (xfer == NULL)
1096 return;
1097 xfer->fc = fc;
1098 xfer->retry_req = fw_asybusy;
1099 xfer->act.hand = fw_asy_callback_free;
1100
1101 fp = &xfer->send.hdr;
1102 fp->mode.ld[1] = 0;
1103 if (root_node >= 0)
1104 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23;
1105 if (gap_count >= 0)
1106 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16;
1107 fp->mode.ld[2] = ~fp->mode.ld[1];
1108 /* XXX Dangerous, how to pass PHY packet to device driver */
1109 fp->mode.common.tcode |= FWTCODE_PHY;
1110
1111 if (firewire_debug)
1112 kprintf("send phy_config root_node=%d gap_count=%d\n",
1113 root_node, gap_count);
1114 fw_asyreq(fc, -1, xfer);
1115 }
1116
1117 #if 0
1118 /*
1119 * Dump self ID.
1120 */
1121 static void
1122 fw_print_sid(u_int32_t sid)
1123 {
1124 union fw_self_id *s;
1125 s = (union fw_self_id *) &sid;
1126 kprintf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1127 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1128 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1129 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1130 s->p0.power_class, s->p0.port0, s->p0.port1,
1131 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1132 }
1133 #endif
1134
1135 /*
1136 * To receive self ID.
1137 */
1138 void
1139 fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len)
1140 {
1141 u_int32_t *p;
1142 union fw_self_id *self_id;
1143 u_int i, j, node, c_port = 0, i_branch = 0;
1144
1145 fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
1146 fc->status = FWBUSINIT;
1147 fc->max_node = fc->nodeid & 0x3f;
1148 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
1149 fc->status = FWBUSCYMELECT;
1150 fc->topology_map->crc_len = 2;
1151 fc->topology_map->generation ++;
1152 fc->topology_map->self_id_count = 0;
1153 fc->topology_map->node_count = 0;
1154 fc->speed_map->generation ++;
1155 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1156 self_id = &fc->topology_map->self_id[0];
1157 for(i = 0; i < fc->sid_cnt; i ++){
1158 if (sid[1] != ~sid[0]) {
1159 kprintf("fw_sidrcv: invalid self-id packet\n");
1160 sid += 2;
1161 continue;
1162 }
1163 *self_id = *((union fw_self_id *)sid);
1164 fc->topology_map->crc_len++;
1165 if(self_id->p0.sequel == 0){
1166 fc->topology_map->node_count ++;
1167 c_port = 0;
1168 #if 0
1169 fw_print_sid(sid[0]);
1170 #endif
1171 node = self_id->p0.phy_id;
1172 if(fc->max_node < node){
1173 fc->max_node = self_id->p0.phy_id;
1174 }
1175 /* XXX I'm not sure this is the right speed_map */
1176 fc->speed_map->speed[node][node]
1177 = self_id->p0.phy_speed;
1178 for (j = 0; j < node; j ++) {
1179 fc->speed_map->speed[j][node]
1180 = fc->speed_map->speed[node][j]
1181 = min(fc->speed_map->speed[j][j],
1182 self_id->p0.phy_speed);
1183 }
1184 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1185 (self_id->p0.link_active && self_id->p0.contender)) {
1186 fc->irm = self_id->p0.phy_id;
1187 }
1188 if(self_id->p0.port0 >= 0x2){
1189 c_port++;
1190 }
1191 if(self_id->p0.port1 >= 0x2){
1192 c_port++;
1193 }
1194 if(self_id->p0.port2 >= 0x2){
1195 c_port++;
1196 }
1197 }
1198 if(c_port > 2){
1199 i_branch += (c_port - 2);
1200 }
1201 sid += 2;
1202 self_id++;
1203 fc->topology_map->self_id_count ++;
1204 }
1205 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1206 /* CRC */
1207 fc->topology_map->crc = fw_crc16(
1208 (u_int32_t *)&fc->topology_map->generation,
1209 fc->topology_map->crc_len * 4);
1210 fc->speed_map->crc = fw_crc16(
1211 (u_int32_t *)&fc->speed_map->generation,
1212 fc->speed_map->crc_len * 4);
1213 /* byteswap and copy to CSR */
1214 p = (u_int32_t *)fc->topology_map;
1215 for (i = 0; i <= fc->topology_map->crc_len; i++)
1216 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1217 p = (u_int32_t *)fc->speed_map;
1218 CSRARC(fc, SPED_MAP) = htonl(*p++);
1219 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1220 /* don't byte-swap u_int8_t array */
1221 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1222
1223 fc->max_hop = fc->max_node - i_branch;
1224 kprintf(", maxhop <= %d", fc->max_hop);
1225
1226 if(fc->irm == -1 ){
1227 kprintf(", Not found IRM capable node");
1228 }else{
1229 kprintf(", cable IRM = %d", fc->irm);
1230 if (fc->irm == fc->nodeid)
1231 kprintf(" (me)");
1232 }
1233 kprintf("\n");
1234
1235 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1236 if (fc->irm == fc->nodeid) {
1237 fc->status = FWBUSMGRDONE;
1238 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1239 fw_bmr(fc);
1240 } else {
1241 fc->status = FWBUSMGRELECT;
1242 callout_reset(&fc->bmr_callout, hz/8,
1243 (void *)fw_try_bmr, (void *)fc);
1244 }
1245 } else
1246 fc->status = FWBUSMGRDONE;
1247
1248 callout_reset(&fc->busprobe_callout, hz/4,
1249 (void *)fw_bus_probe, (void *)fc);
1250 }
1251
1252 /*
1253 * To probe devices on the IEEE1394 bus.
1254 */
1255 static void
1256 fw_bus_probe(struct firewire_comm *fc)
1257 {
1258 struct fw_device *fwdev;
1259
1260 crit_enter();
1261 fc->status = FWBUSEXPLORE;
1262 fc->retry_count = 0;
1263
1264 /* Invalidate all devices, just after bus reset. */
1265 STAILQ_FOREACH(fwdev, &fc->devices, link)
1266 if (fwdev->status != FWDEVINVAL) {
1267 fwdev->status = FWDEVINVAL;
1268 fwdev->rcnt = 0;
1269 }
1270
1271 fc->ongonode = 0;
1272 fc->ongoaddr = CSRROMOFF;
1273 fc->ongodev = NULL;
1274 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1275 fw_bus_explore(fc);
1276 crit_exit();
1277 }
1278
1279 /*
1280 * To collect device informations on the IEEE1394 bus.
1281 */
1282 static void
1283 fw_bus_explore(struct firewire_comm *fc )
1284 {
1285 int err = 0;
1286 struct fw_device *fwdev, *pfwdev, *tfwdev;
1287 u_int32_t addr;
1288 struct fw_xfer *xfer;
1289 struct fw_pkt *fp;
1290
1291 if(fc->status != FWBUSEXPLORE)
1292 return;
1293
1294 loop:
1295 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1296
1297 if(fc->ongonode > fc->max_node) goto done;
1298 if(fc->ongonode >= 0x3f) goto done;
1299
1300 /* check link */
1301 /* XXX we need to check phy_id first */
1302 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
1303 if (firewire_debug)
1304 kprintf("node%d: link down\n", fc->ongonode);
1305 fc->ongonode++;
1306 goto loop;
1307 }
1308
1309 if(fc->ongoaddr <= CSRROMOFF &&
1310 fc->ongoeui.hi == 0xffffffff &&
1311 fc->ongoeui.lo == 0xffffffff ){
1312 fc->ongoaddr = CSRROMOFF;
1313 addr = 0xf0000000 | fc->ongoaddr;
1314 }else if(fc->ongoeui.hi == 0xffffffff ){
1315 fc->ongoaddr = CSRROMOFF + 0xc;
1316 addr = 0xf0000000 | fc->ongoaddr;
1317 }else if(fc->ongoeui.lo == 0xffffffff ){
1318 fc->ongoaddr = CSRROMOFF + 0x10;
1319 addr = 0xf0000000 | fc->ongoaddr;
1320 }else if(fc->ongodev == NULL){
1321 STAILQ_FOREACH(fwdev, &fc->devices, link)
1322 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1323 break;
1324 if(fwdev != NULL){
1325 fwdev->dst = fc->ongonode;
1326 fwdev->status = FWDEVINIT;
1327 fc->ongodev = fwdev;
1328 fc->ongoaddr = CSRROMOFF;
1329 addr = 0xf0000000 | fc->ongoaddr;
1330 goto dorequest;
1331 }
1332 fwdev = kmalloc(sizeof(struct fw_device), M_FW,
1333 M_WAITOK | M_ZERO);
1334 fwdev->fc = fc;
1335 fwdev->rommax = 0;
1336 fwdev->dst = fc->ongonode;
1337 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1338 fwdev->status = FWDEVINIT;
1339 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1340
1341 pfwdev = NULL;
1342 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1343 if (tfwdev->eui.hi > fwdev->eui.hi ||
1344 (tfwdev->eui.hi == fwdev->eui.hi &&
1345 tfwdev->eui.lo > fwdev->eui.lo))
1346 break;
1347 pfwdev = tfwdev;
1348 }
1349 if (pfwdev == NULL)
1350 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1351 else
1352 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1353
1354 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1355 linkspeed[fwdev->speed],
1356 fc->ongoeui.hi, fc->ongoeui.lo);
1357
1358 fc->ongodev = fwdev;
1359 fc->ongoaddr = CSRROMOFF;
1360 addr = 0xf0000000 | fc->ongoaddr;
1361 }else{
1362 addr = 0xf0000000 | fc->ongoaddr;
1363 }
1364 dorequest:
1365 #if 0
1366 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1367 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1368 fw_bus_explore_callback);
1369 if(xfer == NULL) goto done;
1370 #else
1371 xfer = fw_xfer_alloc(M_FWXFER);
1372 if(xfer == NULL){
1373 goto done;
1374 }
1375 xfer->send.spd = 0;
1376 fp = &xfer->send.hdr;
1377 fp->mode.rreqq.dest_hi = 0xffff;
1378 fp->mode.rreqq.tlrt = 0;
1379 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1380 fp->mode.rreqq.pri = 0;
1381 fp->mode.rreqq.src = 0;
1382 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode;
1383 fp->mode.rreqq.dest_lo = addr;
1384 xfer->act.hand = fw_bus_explore_callback;
1385
1386 if (firewire_debug)
1387 kprintf("node%d: explore addr=0x%x\n",
1388 fc->ongonode, fc->ongoaddr);
1389 err = fw_asyreq(fc, -1, xfer);
1390 if(err){
1391 fw_xfer_free( xfer);
1392 return;
1393 }
1394 #endif
1395 return;
1396 done:
1397 /* fw_attach_devs */
1398 fc->status = FWBUSEXPDONE;
1399 if (firewire_debug)
1400 kprintf("bus_explore done\n");
1401 fw_attach_dev(fc);
1402 return;
1403
1404 }
1405
1406 /* Portable Async. request read quad */
1407 struct fw_xfer *
1408 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt,
1409 u_int32_t addr_hi, u_int32_t addr_lo,
1410 void (*hand) (struct fw_xfer*))
1411 {
1412 struct fw_xfer *xfer;
1413 struct fw_pkt *fp;
1414 int err;
1415
1416 xfer = fw_xfer_alloc(M_FWXFER);
1417 if (xfer == NULL)
1418 return NULL;
1419
1420 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */
1421 fp = &xfer->send.hdr;
1422 fp->mode.rreqq.dest_hi = addr_hi & 0xffff;
1423 if(tl & FWP_TL_VALID){
1424 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1425 }else{
1426 fp->mode.rreqq.tlrt = 0;
1427 }
1428 fp->mode.rreqq.tlrt |= rt & 0x3;
1429 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1430 fp->mode.rreqq.pri = 0;
1431 fp->mode.rreqq.src = 0;
1432 fp->mode.rreqq.dst = addr_hi >> 16;
1433 fp->mode.rreqq.dest_lo = addr_lo;
1434 xfer->act.hand = hand;
1435
1436 err = fw_asyreq(fc, -1, xfer);
1437 if(err){
1438 fw_xfer_free( xfer);
1439 return NULL;
1440 }
1441 return xfer;
1442 }
1443
1444 /*
1445 * Callback for the IEEE1394 bus information collection.
1446 */
1447 static void
1448 fw_bus_explore_callback(struct fw_xfer *xfer)
1449 {
1450 struct firewire_comm *fc;
1451 struct fw_pkt *sfp,*rfp;
1452 struct csrhdr *chdr;
1453 struct csrdir *csrd;
1454 struct csrreg *csrreg;
1455 u_int32_t offset;
1456
1457
1458 if(xfer == NULL) {
1459 kprintf("xfer == NULL\n");
1460 return;
1461 }
1462 fc = xfer->fc;
1463
1464 if (firewire_debug)
1465 kprintf("node%d: callback addr=0x%x\n",
1466 fc->ongonode, fc->ongoaddr);
1467
1468 if(xfer->resp != 0){
1469 kprintf("node%d: resp=%d addr=0x%x\n",
1470 fc->ongonode, xfer->resp, fc->ongoaddr);
1471 goto errnode;
1472 }
1473
1474 sfp = &xfer->send.hdr;
1475 rfp = &xfer->recv.hdr;
1476 #if 0
1477 {
1478 u_int32_t *qld;
1479 int i;
1480 qld = (u_int32_t *)xfer->recv.buf;
1481 kprintf("len:%d\n", xfer->recv.len);
1482 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1483 kprintf("0x%08x ", rfp->mode.ld[i/4]);
1484 if((i % 16) == 15) kprintf("\n");
1485 }
1486 if((i % 16) != 15) kprintf("\n");
1487 }
1488 #endif
1489 if(fc->ongodev == NULL){
1490 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){
1491 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1492 chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
1493 /* If CSR is minimal confinguration, more investgation is not needed. */
1494 if(chdr->info_len == 1){
1495 if (firewire_debug)
1496 kprintf("node%d: minimal config\n",
1497 fc->ongonode);
1498 goto nextnode;
1499 }else{
1500 fc->ongoaddr = CSRROMOFF + 0xc;
1501 }
1502 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){
1503 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1504 fc->ongoaddr = CSRROMOFF + 0x10;
1505 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){
1506 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1507 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1508 if (firewire_debug)
1509 kprintf("node%d: eui64 is zero.\n",
1510 fc->ongonode);
1511 goto nextnode;
1512 }
1513 fc->ongoaddr = CSRROMOFF;
1514 }
1515 }else{
1516 if (fc->ongoaddr == CSRROMOFF &&
1517 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) {
1518 fc->ongodev->status = FWDEVATTACHED;
1519 goto nextnode;
1520 }
1521 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1522 if(fc->ongoaddr > fc->ongodev->rommax){
1523 fc->ongodev->rommax = fc->ongoaddr;
1524 }
1525 csrd = SLIST_FIRST(&fc->ongocsr);
1526 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1527 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1528 offset = CSRROMOFF;
1529 }else{
1530 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1531 offset = csrd->off;
1532 }
1533 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1534 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1535 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1536 csrd = SLIST_FIRST(&fc->csrfree);
1537 if(csrd == NULL){
1538 goto nextnode;
1539 }else{
1540 csrd->ongoaddr = fc->ongoaddr;
1541 fc->ongoaddr += csrreg->val * 4;
1542 csrd->off = fc->ongoaddr;
1543 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1544 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1545 goto nextaddr;
1546 }
1547 }
1548 }
1549 fc->ongoaddr += 4;
1550 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1551 (fc->ongodev->rommax < 0x414)){
1552 if(fc->ongodev->rommax <= 0x414){
1553 csrd = SLIST_FIRST(&fc->csrfree);
1554 if(csrd == NULL) goto nextnode;
1555 csrd->off = fc->ongoaddr;
1556 csrd->ongoaddr = fc->ongoaddr;
1557 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1558 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1559 }
1560 goto nextaddr;
1561 }
1562
1563 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1564 if(csrd == NULL){
1565 goto nextnode;
1566 };
1567 fc->ongoaddr = csrd->ongoaddr + 4;
1568 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1569 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1570 csrd = SLIST_FIRST(&fc->ongocsr);
1571 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1572 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1573 offset = CSRROMOFF;
1574 }else{
1575 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1576 offset = csrd->off;
1577 }
1578 }
1579 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1580 goto nextnode;
1581 }
1582 }
1583 nextaddr:
1584 fw_xfer_free( xfer);
1585 fw_bus_explore(fc);
1586 return;
1587 errnode:
1588 fc->retry_count++;
1589 if (fc->ongodev != NULL)
1590 fc->ongodev->status = FWDEVINVAL;
1591 nextnode:
1592 fw_xfer_free( xfer);
1593 fc->ongonode++;
1594 /* housekeeping work space */
1595 fc->ongoaddr = CSRROMOFF;
1596 fc->ongodev = NULL;
1597 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1598 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1599 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1600 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1601 }
1602 fw_bus_explore(fc);
1603 return;
1604 }
1605
1606 /*
1607 * To attach sub-devices layer onto IEEE1394 bus.
1608 */
1609 static void
1610 fw_attach_dev(struct firewire_comm *fc)
1611 {
1612 struct fw_device *fwdev, *next;
1613 int i, err;
1614 device_t *devlistp;
1615 int devcnt;
1616 struct firewire_dev_comm *fdc;
1617
1618 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1619 next = STAILQ_NEXT(fwdev, link);
1620 if (fwdev->status == FWDEVINIT) {
1621 fwdev->status = FWDEVATTACHED;
1622 } else if (fwdev->status == FWDEVINVAL) {
1623 fwdev->rcnt ++;
1624 if (fwdev->rcnt > hold_count) {
1625 /*
1626 * Remove devices which have not been seen
1627 * for a while.
1628 */
1629 STAILQ_REMOVE(&fc->devices, fwdev, fw_device,
1630 link);
1631 kfree(fwdev, M_FW);
1632 }
1633 }
1634 }
1635
1636 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1637 if( err != 0 )
1638 return;
1639 for( i = 0 ; i < devcnt ; i++){
1640 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1641 fdc = device_get_softc(devlistp[i]);
1642 if (fdc->post_explore != NULL)
1643 fdc->post_explore(fdc);
1644 }
1645 }
1646 kfree(devlistp, M_TEMP);
1647
1648 if (fc->retry_count > 0) {
1649 kprintf("probe failed for %d node\n", fc->retry_count);
1650 #if 0
1651 callout_reset(&fc->retry_probe_callout, hz*2,
1652 (void *)fc->ibr, (void *)fc);
1653 #endif
1654 }
1655 return;
1656 }
1657
1658 /*
1659 * To allocate uniq transaction label.
1660 */
1661 static int
1662 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1663 {
1664 u_int i;
1665 struct tlabel *tl, *tmptl;
1666 static u_int32_t label = 0;
1667
1668 crit_enter();
1669 for( i = 0 ; i < 0x40 ; i ++){
1670 label = (label + 1) & 0x3f;
1671 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1672 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1673 if (tmptl->xfer->send.hdr.mode.hdr.dst ==
1674 xfer->send.hdr.mode.hdr.dst)
1675 break;
1676 }
1677 if(tmptl == NULL) {
1678 tl = kmalloc(sizeof(struct tlabel), M_FW, M_WAITOK);
1679 tl->xfer = xfer;
1680 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1681 crit_exit();
1682 if (firewire_debug > 1)
1683 kprintf("fw_get_tlabel: dst=%d tl=%d\n",
1684 xfer->send.hdr.mode.hdr.dst, label);
1685 return(label);
1686 }
1687 }
1688 crit_exit();
1689
1690 kprintf("fw_get_tlabel: no free tlabel\n");
1691 return(-1);
1692 }
1693
1694 static void
1695 fw_rcv_copy(struct fw_rcv_buf *rb)
1696 {
1697 struct fw_pkt *pkt;
1698 u_char *p;
1699 struct tcode_info *tinfo;
1700 u_int res, i, len, plen;
1701
1702 rb->xfer->recv.spd -= rb->spd;
1703
1704 pkt = (struct fw_pkt *)rb->vec->iov_base;
1705 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode];
1706
1707 /* Copy header */
1708 p = (u_char *)&rb->xfer->recv.hdr;
1709 bcopy(rb->vec->iov_base, p, tinfo->hdr_len);
1710 rb->vec->iov_base = (uint8_t *)rb->vec->iov_base + tinfo->hdr_len;
1711 rb->vec->iov_len -= tinfo->hdr_len;
1712
1713 /* Copy payload */
1714 p = (u_char *)rb->xfer->recv.payload;
1715 res = rb->xfer->recv.pay_len;
1716
1717 /* special handling for RRESQ */
1718 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ &&
1719 p != NULL && res >= sizeof(u_int32_t)) {
1720 *(u_int32_t *)p = pkt->mode.rresq.data;
1721 rb->xfer->recv.pay_len = sizeof(u_int32_t);
1722 return;
1723 }
1724
1725 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0)
1726 return;
1727
1728 plen = pkt->mode.rresb.len;
1729
1730 for (i = 0; i < rb->nvec; i++, rb->vec++) {
1731 len = MIN(rb->vec->iov_len, plen);
1732 if (res < len) {
1733 kprintf("rcv buffer(%d) is %d bytes short.\n",
1734 rb->xfer->recv.pay_len, len - res);
1735 len = res;
1736 }
1737 bcopy(rb->vec->iov_base, p, len);
1738 p += len;
1739 res -= len;
1740 plen -= len;
1741 if (res == 0 || plen == 0)
1742 break;
1743 }
1744 rb->xfer->recv.pay_len -= res;
1745
1746 }
1747
1748 /*
1749 * Generic packet receving process.
1750 */
1751 void
1752 fw_rcv(struct fw_rcv_buf *rb)
1753 {
1754 struct fw_pkt *fp, *resfp;
1755 struct fw_bind *bind;
1756 int tcode;
1757 int i, len, oldstate;
1758 #if 0
1759 {
1760 u_int32_t *qld;
1761 int i;
1762 qld = (u_int32_t *)buf;
1763 kprintf("spd %d len:%d\n", spd, len);
1764 for( i = 0 ; i <= len && i < 32; i+= 4){
1765 kprintf("0x%08x ", ntohl(qld[i/4]));
1766 if((i % 16) == 15) kprintf("\n");
1767 }
1768 if((i % 16) != 15) kprintf("\n");
1769 }
1770 #endif
1771 fp = (struct fw_pkt *)rb->vec[0].iov_base;
1772 tcode = fp->mode.common.tcode;
1773 switch (tcode) {
1774 case FWTCODE_WRES:
1775 case FWTCODE_RRESQ:
1776 case FWTCODE_RRESB:
1777 case FWTCODE_LRES:
1778 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1779 fp->mode.hdr.tlrt >> 2);
1780 if(rb->xfer == NULL) {
1781 kprintf("fw_rcv: unknown response "
1782 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n",
1783 tcode_str[tcode], tcode,
1784 fp->mode.hdr.src,
1785 fp->mode.hdr.tlrt >> 2,
1786 fp->mode.hdr.tlrt & 3,
1787 fp->mode.rresq.data);
1788 #if 1
1789 kprintf("try ad-hoc work around!!\n");
1790 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1791 (fp->mode.hdr.tlrt >> 2)^3);
1792 if (rb->xfer == NULL) {
1793 kprintf("no use...\n");
1794 goto err;
1795 }
1796 #else
1797 goto err;
1798 #endif
1799 }
1800 fw_rcv_copy(rb);
1801 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP)
1802 rb->xfer->resp = EIO;
1803 else
1804 rb->xfer->resp = 0;
1805 /* make sure the packet is drained in AT queue */
1806 oldstate = rb->xfer->state;
1807 rb->xfer->state = FWXF_RCVD;
1808 switch (oldstate) {
1809 case FWXF_SENT:
1810 fw_xfer_done(rb->xfer);
1811 break;
1812 case FWXF_START:
1813 #if 0
1814 if (firewire_debug)
1815 kprintf("not sent yet tl=%x\n", rb->xfer->tl);
1816 #endif
1817 break;
1818 default:
1819 kprintf("unexpected state %d\n", rb->xfer->state);
1820 }
1821 return;
1822 case FWTCODE_WREQQ:
1823 case FWTCODE_WREQB:
1824 case FWTCODE_RREQQ:
1825 case FWTCODE_RREQB:
1826 case FWTCODE_LREQ:
1827 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi,
1828 fp->mode.rreqq.dest_lo);
1829 if(bind == NULL){
1830 kprintf("Unknown service addr 0x%04x:0x%08x %s(%x)"
1831 " src=0x%x data=%x\n",
1832 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo,
1833 tcode_str[tcode], tcode,
1834 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data));
1835 if (rb->fc->status == FWBUSRESET) {
1836 kprintf("fw_rcv: cannot respond(bus reset)!\n");
1837 goto err;
1838 }
1839 rb->xfer = fw_xfer_alloc(M_FWXFER);
1840 if(rb->xfer == NULL){
1841 return;
1842 }
1843 rb->xfer->send.spd = rb->spd;
1844 rb->xfer->send.pay_len = 0;
1845 resfp = &rb->xfer->send.hdr;
1846 switch (tcode) {
1847 case FWTCODE_WREQQ:
1848 case FWTCODE_WREQB:
1849 resfp->mode.hdr.tcode = FWTCODE_WRES;
1850 break;
1851 case FWTCODE_RREQQ:
1852 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1853 break;
1854 case FWTCODE_RREQB:
1855 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1856 break;
1857 case FWTCODE_LREQ:
1858 resfp->mode.hdr.tcode = FWTCODE_LRES;
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 = RESP_ADDRESS_ERROR;
1865 resfp->mode.rresb.extcode = 0;
1866 resfp->mode.rresb.len = 0;
1867 /*
1868 rb->xfer->act.hand = fw_asy_callback;
1869 */
1870 rb->xfer->act.hand = fw_xfer_free;
1871 if(fw_asyreq(rb->fc, -1, rb->xfer)){
1872 fw_xfer_free(rb->xfer);
1873 return;
1874 }
1875 goto err;
1876 }
1877 len = 0;
1878 for (i = 0; i < rb->nvec; i ++)
1879 len += rb->vec[i].iov_len;
1880 switch(bind->act_type){
1881 case FWACT_XFER:
1882 crit_enter();
1883 rb->xfer = STAILQ_FIRST(&bind->xferlist);
1884 if (rb->xfer == NULL) {
1885 kprintf("Discard a packet for this bind.\n");
1886 crit_exit();
1887 goto err;
1888 }
1889 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1890 crit_exit();
1891 fw_rcv_copy(rb);
1892 rb->xfer->act.hand(rb->xfer);
1893 return;
1894 break;
1895 case FWACT_CH:
1896 if(rb->fc->ir[bind->sub]->queued >=
1897 rb->fc->ir[bind->sub]->maxq){
1898 device_printf(rb->fc->bdev,
1899 "Discard a packet %x %d\n",
1900 bind->sub,
1901 rb->fc->ir[bind->sub]->queued);
1902 goto err;
1903 }
1904 crit_enter();
1905 rb->xfer = STAILQ_FIRST(&bind->xferlist);
1906 if (rb->xfer == NULL) {
1907 kprintf("Discard packet for this bind\n");
1908 goto err;
1909 }
1910 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1911 crit_exit();
1912 fw_rcv_copy(rb);
1913 crit_enter();
1914 rb->fc->ir[bind->sub]->queued++;
1915 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q,
1916 rb->xfer, link);
1917 crit_exit();
1918
1919 wakeup((caddr_t)rb->fc->ir[bind->sub]);
1920
1921 return;
1922 break;
1923 default:
1924 goto err;
1925 break;
1926 }
1927 break;
1928 #if 0 /* shouldn't happen ?? or for GASP */
1929 case FWTCODE_STREAM:
1930 {
1931 struct fw_xferq *xferq;
1932
1933 xferq = rb->fc->ir[sub];
1934 #if 0
1935 kprintf("stream rcv dma %d len %d off %d spd %d\n",
1936 sub, len, off, spd);
1937 #endif
1938 if(xferq->queued >= xferq->maxq) {
1939 kprintf("receive queue is full\n");
1940 goto err;
1941 }
1942 /* XXX get xfer from xfer queue, we don't need copy for
1943 per packet mode */
1944 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
1945 vec[0].iov_len);
1946 if (rb->xfer == NULL) goto err;
1947 fw_rcv_copy(rb)
1948 crit_enter();
1949 xferq->queued++;
1950 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link);
1951 crit_exit();
1952 sc = device_get_softc(rb->fc->bdev);
1953 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1954 if (&xferq->rsel.si_pid != 0)
1955 #else
1956 if (SEL_WAITING(&xferq->rsel))
1957 #endif
1958 selwakeuppri(&xferq->rsel, FWPRI);
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 #endif
1970 default:
1971 kprintf("fw_rcv: unknow tcode %d\n", tcode);
1972 break;
1973 }
1974 err:
1975 return;
1976 }
1977
1978 /*
1979 * Post process for Bus Manager election process.
1980 */
1981 static void
1982 fw_try_bmr_callback(struct fw_xfer *xfer)
1983 {
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->recv.payload == NULL)
1993 goto error;
1994 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE)
1995 goto error;
1996
1997 bmr = ntohl(xfer->recv.payload[0]);
1998 if (bmr == 0x3f)
1999 bmr = fc->nodeid;
2000
2001 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
2002 fw_xfer_free_buf(xfer);
2003 fw_bmr(fc);
2004 return;
2005
2006 error:
2007 device_printf(fc->bdev, "bus manager election failed\n");
2008 fw_xfer_free_buf(xfer);
2009 }
2010
2011
2012 /*
2013 * To candidate Bus Manager election process.
2014 */
2015 static void
2016 fw_try_bmr(void *arg)
2017 {
2018 struct fw_xfer *xfer;
2019 struct firewire_comm *fc = (struct firewire_comm *)arg;
2020 struct fw_pkt *fp;
2021 int err = 0;
2022
2023 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4);
2024 if(xfer == NULL){
2025 return;
2026 }
2027 xfer->send.spd = 0;
2028 fc->status = FWBUSMGRELECT;
2029
2030 fp = &xfer->send.hdr;
2031 fp->mode.lreq.dest_hi = 0xffff;
2032 fp->mode.lreq.tlrt = 0;
2033 fp->mode.lreq.tcode = FWTCODE_LREQ;
2034 fp->mode.lreq.pri = 0;
2035 fp->mode.lreq.src = 0;
2036 fp->mode.lreq.len = 8;
2037 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP;
2038 fp->mode.lreq.dst = FWLOCALBUS | fc->irm;
2039 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
2040 xfer->send.payload[0] = htonl(0x3f);
2041 xfer->send.payload[1] = htonl(fc->nodeid);
2042 xfer->act.hand = fw_try_bmr_callback;
2043
2044 err = fw_asyreq(fc, -1, xfer);
2045 if(err){
2046 fw_xfer_free_buf(xfer);
2047 return;
2048 }
2049 return;
2050 }
2051
2052 #ifdef FW_VMACCESS
2053 /*
2054 * Software implementation for physical memory block access.
2055 * XXX:Too slow, usef for debug purpose only.
2056 */
2057 static void
2058 fw_vmaccess(struct fw_xfer *xfer){
2059 struct fw_pkt *rfp, *sfp = NULL;
2060 u_int32_t *ld = (u_int32_t *)xfer->recv.buf;
2061
2062 kprintf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
2063 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2064 kprintf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2065 if(xfer->resp != 0){
2066 fw_xfer_free( xfer);
2067 return;
2068 }
2069 if(xfer->recv.buf == NULL){
2070 fw_xfer_free( xfer);
2071 return;
2072 }
2073 rfp = (struct fw_pkt *)xfer->recv.buf;
2074 switch(rfp->mode.hdr.tcode){
2075 /* XXX need fix for 64bit arch */
2076 case FWTCODE_WREQB:
2077 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK);
2078 xfer->send.len = 12;
2079 sfp = (struct fw_pkt *)xfer->send.buf;
2080 bcopy(rfp->mode.wreqb.payload,
2081 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2082 sfp->mode.wres.tcode = FWTCODE_WRES;
2083 sfp->mode.wres.rtcode = 0;
2084 break;
2085 case FWTCODE_WREQQ:
2086 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK);
2087 xfer->send.len = 12;
2088 sfp->mode.wres.tcode = FWTCODE_WRES;
2089 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2090 sfp->mode.wres.rtcode = 0;
2091 break;
2092 case FWTCODE_RREQB:
2093 xfer->send.buf = kmalloc(16 + rfp->mode.rreqb.len, M_FW, M_WAITOK);
2094 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2095 sfp = (struct fw_pkt *)xfer->send.buf;
2096 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2097 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
2098 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2099 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2100 sfp->mode.rresb.rtcode = 0;
2101 sfp->mode.rresb.extcode = 0;
2102 break;
2103 case FWTCODE_RREQQ:
2104 xfer->send.buf = kmalloc(16, M_FW, M_WAITOK);
2105 xfer->send.len = 16;
2106 sfp = (struct fw_pkt *)xfer->send.buf;
2107 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2108 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2109 sfp->mode.rresb.rtcode = 0;
2110 break;
2111 default:
2112 fw_xfer_free( xfer);
2113 return;
2114 }
2115 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2116 xfer->dst = ntohs(rfp->mode.hdr.src);
2117 xfer->act.hand = fw_xfer_free;
2118 xfer->retry_req = fw_asybusy;
2119
2120 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2121 sfp->mode.hdr.pri = 0;
2122
2123 fw_asyreq(xfer->fc, -1, xfer);
2124 /**/
2125 return;
2126 }
2127 #endif
2128
2129 /*
2130 * CRC16 check-sum for IEEE1394 register blocks.
2131 */
2132 u_int16_t
2133 fw_crc16(u_int32_t *ptr, u_int32_t len){
2134 u_int32_t i, sum, crc = 0;
2135 int shift;
2136 len = (len + 3) & ~3;
2137 for(i = 0 ; i < len ; i+= 4){
2138 for( shift = 28 ; shift >= 0 ; shift -= 4){
2139 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2140 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2141 }
2142 crc &= 0xffff;
2143 }
2144 return((u_int16_t) crc);
2145 }
2146
2147 static int
2148 fw_bmr(struct firewire_comm *fc)
2149 {
2150 struct fw_device fwdev;
2151 union fw_self_id *self_id;
2152 int cmstr;
2153 u_int32_t quad;
2154
2155 /* Check to see if the current root node is cycle master capable */
2156 self_id = &fc->topology_map->self_id[fc->max_node];
2157 if (fc->max_node > 0) {
2158 /* XXX check cmc bit of businfo block rather than contender */
2159 if (self_id->p0.link_active && self_id->p0.contender)
2160 cmstr = fc->max_node;
2161 else {
2162 device_printf(fc->bdev,
2163 "root node is not cycle master capable\n");
2164 /* XXX shall we be the cycle master? */
2165 cmstr = fc->nodeid;
2166 /* XXX need bus reset */
2167 }
2168 } else
2169 cmstr = -1;
2170
2171 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID));
2172 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
2173 /* We are not the bus manager */
2174 kprintf("\n");
2175 return(0);
2176 }
2177 kprintf("(me)\n");
2178
2179 /* Optimize gapcount */
2180 if(fc->max_hop <= MAX_GAPHOP )
2181 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
2182 /* If we are the cycle master, nothing to do */
2183 if (cmstr == fc->nodeid || cmstr == -1)
2184 return 0;
2185 /* Bus probe has not finished, make dummy fwdev for cmstr */
2186 bzero(&fwdev, sizeof(fwdev));
2187 fwdev.fc = fc;
2188 fwdev.dst = cmstr;
2189 fwdev.speed = 0;
2190 fwdev.maxrec = 8; /* 512 */
2191 fwdev.status = FWDEVINIT;
2192 /* Set cmstr bit on the cycle master */
2193 quad = htonl(1 << 8);
2194 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2195 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free);
2196
2197 return 0;
2198 }
2199
2200 static int
2201 fw_modevent(module_t mode, int type, void *data)
2202 {
2203 int err = 0;
2204 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2205 static eventhandler_tag fwdev_ehtag = NULL;
2206 #endif
2207
2208 switch (type) {
2209 case MOD_LOAD:
2210 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2211 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone,
2212 fwdev_clone, 0, 1000);
2213 #endif
2214 break;
2215 case MOD_UNLOAD:
2216 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2217 if (fwdev_ehtag != NULL)
2218 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag);
2219 #endif
2220 break;
2221 case MOD_SHUTDOWN:
2222 break;
2223 }
2224 return (err);
2225 }
2226
2227 /*
2228 * This causes the firewire identify to be called for any attached fwohci
2229 * device in the system.
2230 */
2231 DECLARE_DUMMY_MODULE(firewire);
2232 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0);
2233 MODULE_VERSION(firewire, 1);
DragonFly BSD