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[netbsd-mini2440.git] / sys / dev / ieee1394 / firewire.c
blobe1585a0d4e10f74afa0c143e5f1b13194e031d9b
1 /* $NetBSD: firewire.c,v 1.24 2009/03/18 16:00:18 cegger Exp $ */
2 /*-
3 * Copyright (c) 2003 Hidetoshi Shimokawa
4 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the acknowledgement as bellow:
17 *
18 * This product includes software developed by K. Kobayashi and H. Shimokawa
19 *
20 * 4. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 *
35 * $FreeBSD: src/sys/dev/firewire/firewire.c,v 1.101 2007/10/20 23:23:14 julian Exp $
36 *
37 */
38
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: firewire.c,v 1.24 2009/03/18 16:00:18 cegger Exp $");
41
42 #if defined(__FreeBSD__)
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/types.h>
46
47 #include <sys/kernel.h>
48 #include <sys/module.h>
49 #include <sys/malloc.h>
50 #include <sys/conf.h>
51 #include <sys/sysctl.h>
52 #include <sys/kthread.h>
53
54 #include <sys/kdb.h>
55
56 #if defined(__DragonFly__) || __FreeBSD_version < 500000
57 #include <machine/clock.h> /* for DELAY() */
58 #endif
59
60 #include <sys/bus.h> /* used by smbus and newbus */
61 #include <sys/bus.h>
62
63 #ifdef __DragonFly__
64 #include "fw_port.h"
65 #include "firewire.h"
66 #include "firewirereg.h"
67 #include "fwmem.h"
68 #include "iec13213.h"
69 #include "iec68113.h"
70 #else
71 #include <dev/firewire/fw_port.h>
72 #include <dev/firewire/firewire.h>
73 #include <dev/firewire/firewirereg.h>
74 #include <dev/firewire/fwmem.h>
75 #include <dev/firewire/iec13213.h>
76 #include <dev/firewire/iec68113.h>
77 #endif
78 #elif defined(__NetBSD__)
79 #include <sys/param.h>
80 #include <sys/device.h>
81 #include <sys/errno.h>
82 #include <sys/conf.h>
83 #include <sys/kernel.h>
84 #include <sys/kthread.h>
85 #include <sys/malloc.h>
86 #include <sys/queue.h>
87 #include <sys/sysctl.h>
88 #include <sys/systm.h>
89
90 #include <sys/bus.h>
91
92 #include <dev/ieee1394/fw_port.h>
93 #include <dev/ieee1394/firewire.h>
94 #include <dev/ieee1394/firewirereg.h>
95 #include <dev/ieee1394/fwmem.h>
96 #include <dev/ieee1394/iec13213.h>
97 #include <dev/ieee1394/iec68113.h>
98
99 #include "locators.h"
100 #endif
101
102 struct crom_src_buf {
103 struct crom_src src;
104 struct crom_chunk root;
105 struct crom_chunk vendor;
106 struct crom_chunk hw;
107 };
108
109 int firewire_debug=0, try_bmr=1, hold_count=3;
110 #if defined(__FreeBSD__)
111 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
112 "FireWire driver debug flag");
113 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
114 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
115 "Try to be a bus manager");
116 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0,
117 "Number of count of bus resets for removing lost device information");
118
119 MALLOC_DEFINE(M_FW, "firewire", "FireWire");
120 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
121 #elif defined(__NetBSD__)
122 /*
123 * Setup sysctl(3) MIB, hw.ieee1394if.*
124 *
125 * TBD condition CTLFLAG_PERMANENT on being a module or not
126 */
127 SYSCTL_SETUP(sysctl_ieee1394if, "sysctl ieee1394if(4) subtree setup")
128 {
129 int rc, ieee1394if_node_num;
130 const struct sysctlnode *node;
131
132 if ((rc = sysctl_createv(clog, 0, NULL, NULL,
133 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
134 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) {
135 goto err;
136 }
137
138 if ((rc = sysctl_createv(clog, 0, NULL, &node,
139 CTLFLAG_PERMANENT, CTLTYPE_NODE, "ieee1394if",
140 SYSCTL_DESCR("ieee1394if controls"),
141 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) {
142 goto err;
143 }
144 ieee1394if_node_num = node->sysctl_num;
145
146 /* ieee1394if try bus manager flag */
147 if ((rc = sysctl_createv(clog, 0, NULL, &node,
148 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT,
149 "try_bmr", SYSCTL_DESCR("Try to be a bus manager"),
150 NULL, 0, &try_bmr,
151 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) {
152 goto err;
153 }
154
155 /* ieee1394if hold count */
156 if ((rc = sysctl_createv(clog, 0, NULL, &node,
157 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT,
158 "hold_count", SYSCTL_DESCR("Number of count of "
159 "bus resets for removing lost device information"),
160 NULL, 0, &hold_count,
161 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) {
162 goto err;
163 }
164
165 /* ieee1394if driver debug flag */
166 if ((rc = sysctl_createv(clog, 0, NULL, &node,
167 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT,
168 "ieee1394_debug", SYSCTL_DESCR("ieee1394if driver debug flag"),
169 NULL, 0, &firewire_debug,
170 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) {
171 goto err;
172 }
173
174 return;
175
176 err:
177 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
178 }
179
180 MALLOC_DEFINE(M_FW, "ieee1394", "IEEE1394");
181 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/IEEE1394");
182 #endif
183
184 #define FW_MAXASYRTY 4
185
186 #if defined(__FreeBSD__)
187 devclass_t firewire_devclass;
188
189 static void firewire_identify (driver_t *, device_t);
190 static int firewire_probe (device_t);
191 static int firewire_attach (device_t);
192 static int firewire_detach (device_t);
193 static int firewire_resume (device_t);
194 #if 0
195 static int firewire_shutdown (device_t);
196 #endif
197 static device_t firewire_add_child (device_t, int, const char *, int);
198 #elif defined(__NetBSD__)
199 int firewirematch (device_t, cfdata_t, void *);
200 void firewireattach (device_t, device_t, void *);
201 int firewiredetach (device_t, int);
202 int firewire_print (void *, const char *);
203 int firewire_resume (struct firewire_comm *);
204 #endif
205 static void firewire_xfer_timeout(void *, int);
206 static void fw_try_bmr (void *);
207 static void fw_try_bmr_callback (struct fw_xfer *);
208 static void fw_asystart (struct fw_xfer *);
209 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *);
210 static void fw_bus_probe (struct firewire_comm *);
211 static void fw_attach_dev (struct firewire_comm *);
212 static void fw_bus_probe_thread(void *);
213 #ifdef FW_VMACCESS
214 static void fw_vmaccess (struct fw_xfer *);
215 #endif
216 static int fw_bmr (struct firewire_comm *);
217 static void fw_dump_hdr(struct fw_pkt *, const char *);
218
219 #if defined(__FreeBSD__)
220 static device_method_t firewire_methods[] = {
221 /* Device interface */
222 DEVMETHOD(device_identify, firewire_identify),
223 DEVMETHOD(device_probe, firewire_probe),
224 DEVMETHOD(device_attach, firewire_attach),
225 DEVMETHOD(device_detach, firewire_detach),
226 DEVMETHOD(device_suspend, bus_generic_suspend),
227 DEVMETHOD(device_resume, firewire_resume),
228 DEVMETHOD(device_shutdown, bus_generic_shutdown),
229
230 /* Bus interface */
231 DEVMETHOD(bus_add_child, firewire_add_child),
232 DEVMETHOD(bus_print_child, bus_generic_print_child),
233
234 { 0, 0 }
235 };
236 #elif defined(__NetBSD__)
237 CFATTACH_DECL_NEW(ieee1394if, sizeof(struct firewire_softc),
238 firewirematch, firewireattach, firewiredetach, NULL);
239 #endif
240 const char *fw_linkspeed[] = {
241 "S100", "S200", "S400", "S800",
242 "S1600", "S3200", "undef", "undef"
243 };
244
245 static const char *tcode_str[] = {
246 "WREQQ", "WREQB", "WRES", "undef",
247 "RREQQ", "RREQB", "RRESQ", "RRESB",
248 "CYCS", "LREQ", "STREAM", "LRES",
249 "undef", "undef", "PHY", "undef"
250 };
251
252 /* IEEE-1394a Table C-2 Gap count as a function of hops*/
253 #define MAX_GAPHOP 15
254 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
255 21, 24, 26, 29, 32, 35, 37, 40};
256
257 #if defined(__FreeBSD__)
258 static driver_t firewire_driver = {
259 "firewire",
260 firewire_methods,
261 sizeof(struct firewire_softc),
262 };
263 #endif
264
265 /*
266 * Lookup fwdev by node id.
267 */
268 struct fw_device *
269 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
270 {
271 struct fw_device *fwdev;
272 int s;
273
274 s = splfw();
275 FW_GLOCK(fc);
276 STAILQ_FOREACH(fwdev, &fc->devices, link)
277 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL)
278 break;
279 FW_GUNLOCK(fc);
280 splx(s);
281
282 return fwdev;
283 }
284
285 /*
286 * Lookup fwdev by EUI64.
287 */
288 struct fw_device *
289 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
290 {
291 struct fw_device *fwdev;
292 int s;
293
294 s = splfw();
295 STAILQ_FOREACH(fwdev, &fc->devices, link)
296 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
297 break;
298 splx(s);
299
300 if(fwdev == NULL) return NULL;
301 if(fwdev->status == FWDEVINVAL) return NULL;
302 return fwdev;
303 }
304
305 /*
306 * Async. request procedure for userland application.
307 */
308 int
309 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
310 {
311 int err = 0;
312 struct fw_xferq *xferq;
313 int len;
314 struct fw_pkt *fp;
315 int tcode;
316 const struct tcode_info *info;
317
318 if(xfer == NULL) return EINVAL;
319 if(xfer->hand == NULL){
320 printf("hand == NULL\n");
321 return EINVAL;
322 }
323 fp = &xfer->send.hdr;
324
325 tcode = fp->mode.common.tcode & 0xf;
326 info = &fc->tcode[tcode];
327 if (info->flag == 0) {
328 printf("invalid tcode=%x\n", tcode);
329 return EINVAL;
330 }
331
332 /* XXX allow bus explore packets only after bus rest */
333 if ((fc->status < FWBUSEXPLORE) &&
334 ((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) ||
335 (fp->mode.rreqq.dest_lo < 0xf0000000) ||
336 (fp->mode.rreqq.dest_lo >= 0xf0001000))) {
337 xfer->resp = EAGAIN;
338 xfer->flag = FWXF_BUSY;
339 return (EAGAIN);
340 }
341
342 if (info->flag & FWTI_REQ)
343 xferq = fc->atq;
344 else
345 xferq = fc->ats;
346 len = info->hdr_len;
347 if (xfer->send.pay_len > MAXREC(fc->maxrec)) {
348 printf("send.pay_len > maxrec\n");
349 return EINVAL;
350 }
351 if (info->flag & FWTI_BLOCK_STR)
352 len = fp->mode.stream.len;
353 else if (info->flag & FWTI_BLOCK_ASY)
354 len = fp->mode.rresb.len;
355 else
356 len = 0;
357 if (len != xfer->send.pay_len){
358 printf("len(%d) != send.pay_len(%d) %s(%x)\n",
359 len, xfer->send.pay_len, tcode_str[tcode], tcode);
360 return EINVAL;
361 }
362
363 if(xferq->start == NULL){
364 printf("xferq->start == NULL\n");
365 return EINVAL;
366 }
367 if(!(xferq->queued < xferq->maxq)){
368 fw_printf(fc->bdev, "Discard a packet (queued=%d)\n",
369 xferq->queued);
370 return EAGAIN;
371 }
372
373 xfer->tl = -1;
374 if (info->flag & FWTI_TLABEL) {
375 if (fw_get_tlabel(fc, xfer) < 0)
376 return EAGAIN;
377 }
378
379 xfer->resp = 0;
380 xfer->fc = fc;
381 xfer->q = xferq;
382
383 fw_asystart(xfer);
384 return err;
385 }
386 /*
387 * Wakeup blocked process.
388 */
389 void
390 fw_xferwake(struct fw_xfer *xfer)
391 {
392 fw_mtx_t lock = &xfer->fc->wait_lock;
393
394 fw_mtx_lock(lock);
395 xfer->flag |= FWXF_WAKE;
396 fw_mtx_unlock(lock);
397
398 wakeup(xfer);
399 return;
400 }
401
402 int
403 fw_xferwait(struct fw_xfer *xfer)
404 {
405 fw_mtx_t lock = &xfer->fc->wait_lock;
406 int err = 0;
407
408 fw_mtx_lock(lock);
409 if ((xfer->flag & FWXF_WAKE) == 0)
410 err = fw_msleep((void *)xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0);
411 fw_mtx_unlock(lock);
412
413 return (err);
414 }
415
416 /*
417 * Async. request with given xfer structure.
418 */
419 static void
420 fw_asystart(struct fw_xfer *xfer)
421 {
422 struct firewire_comm *fc = xfer->fc;
423 int s;
424 s = splfw();
425 /* Protect from interrupt/timeout */
426 FW_GLOCK(fc);
427 xfer->flag = FWXF_INQ;
428 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
429 #if 0
430 xfer->q->queued ++;
431 #endif
432 FW_GUNLOCK(fc);
433 splx(s);
434 /* XXX just queue for mbuf */
435 if (xfer->mbuf == NULL)
436 xfer->q->start(fc);
437 return;
438 }
439
440 #if defined(__FreeBSD__)
441 static void
442 firewire_identify(driver_t *driver, device_t parent)
443 {
444 BUS_ADD_CHILD(parent, 0, "firewire", -1);
445 }
446
447 static int
448 firewire_probe(device_t dev)
449 {
450 device_set_desc(dev, "IEEE1394(FireWire) bus");
451 return (0);
452 }
453 #elif defined(__NetBSD__)
454 int
455 firewirematch(device_t parent, cfdata_t cf, void *aux)
456 {
457 struct fwbus_attach_args *faa = (struct fwbus_attach_args *)aux;
458
459 if (strcmp(faa->name, "ieee1394if") == 0)
460 return (1);
461 return (0);
462 }
463 #endif
464
465 static void
466 firewire_xfer_timeout(void *arg, int pending)
467 {
468 struct firewire_comm *fc = (struct firewire_comm *)arg;
469 struct fw_xfer *xfer, *txfer;
470 struct timeval tv;
471 struct timeval split_timeout;
472 STAILQ_HEAD(, fw_xfer) xfer_timeout;
473 int i, s;
474
475 split_timeout.tv_sec = 0;
476 split_timeout.tv_usec = 200 * 1000; /* 200 msec */
477
478 microtime(&tv);
479 fw_timevalsub(&tv, &split_timeout);
480 STAILQ_INIT(&xfer_timeout);
481
482 s = splfw();
483 fw_mtx_lock(&fc->tlabel_lock);
484 for (i = 0; i < 0x40; i ++) {
485 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
486 if ((xfer->flag & FWXF_SENT) == 0)
487 /* not sent yet */
488 break;
489 if (fw_timevalcmp(&xfer->tv, &tv, >))
490 /* the rests are newer than this */
491 break;
492 fw_printf(fc->bdev,
493 "split transaction timeout: "
494 "tl=0x%x flag=0x%02x\n", i, xfer->flag);
495 fw_dump_hdr(&xfer->send.hdr, "send");
496 xfer->resp = ETIMEDOUT;
497 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel);
498 STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel);
499 }
500 }
501 fw_mtx_unlock(&fc->tlabel_lock);
502 splx(s);
503 fc->timeout(fc);
504
505 STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer)
506 xfer->hand(xfer);
507 }
508
509 #define WATCHDOG_HZ 10
510 static void
511 firewire_watchdog(void *arg)
512 {
513 struct firewire_comm *fc;
514 static int watchdog_clock = 0;
515
516 fc = (struct firewire_comm *)arg;
517
518 /*
519 * At boot stage, the device interrupt is disabled and
520 * We encounter a timeout easily. To avoid this,
521 * ignore clock interrupt for a while.
522 */
523 if (watchdog_clock > WATCHDOG_HZ * 15)
524 fw_taskqueue_enqueue(fc->taskqueue, &fc->task_timeout);
525 else
526 watchdog_clock ++;
527
528 fw_callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ,
529 (void *)firewire_watchdog, (void *)fc);
530 }
531
532 /*
533 * The attach routine.
534 */
535 FW_ATTACH(firewire)
536 {
537 FW_ATTACH_START(firewire, sc, fwa);
538 FIREWIRE_ATTACH_START;
539
540 sc->fc = fc;
541 fc->status = FWBUSNOTREADY;
542
543 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
544
545 FWDEV_MAKEDEV(sc);
546
547 fw_mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF);
548 fw_mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF);
549 fw_callout_init(&fc->timeout_callout);
550 fw_callout_init(&fc->bmr_callout);
551 fw_callout_init(&fc->busprobe_callout);
552 FW_TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc);
553
554 fw_callout_reset(&sc->fc->timeout_callout, hz,
555 (void *)firewire_watchdog, (void *)sc->fc);
556
557 /* create thread */
558 fw_kthread_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread,
559 "fw%d_probe", fw_get_unit(fc->bdev));
560 fw_config_pending_incr();
561
562 FIREWIRE_GENERIC_ATTACH;
563
564 /* bus_reset */
565 fw_busreset(fc, FWBUSNOTREADY);
566 fc->ibr(fc);
567
568 #ifdef __NetBSD__
569 if (!pmf_device_register(self, NULL, NULL))
570 aprint_error_dev(self, "couldn't establish power handler\n");
571 #endif
572
573 FW_ATTACH_RETURN(0);
574 }
575
576 #if defined(__FreeBSD__)
577 /*
578 * Attach it as child.
579 */
580 static device_t
581 firewire_add_child(device_t dev, int order, const char *name, int unit)
582 {
583 device_t child;
584 struct firewire_softc *sc;
585 struct fw_attach_args fwa;
586
587 sc = (struct firewire_softc *)device_get_softc(dev);
588 child = device_add_child(dev, name, unit);
589 if (child) {
590 fwa.name = name;
591 fwa.fc = sc->fc;
592 fwa.fwdev = NULL;
593 device_set_ivars(child, &fwa);
594 device_probe_and_attach(child);
595 }
596
597 return child;
598 }
599
600 static int
601 firewire_resume(device_t dev)
602 {
603 struct firewire_softc *sc;
604
605 sc = (struct firewire_softc *)device_get_softc(dev);
606 sc->fc->status = FWBUSNOTREADY;
607
608 bus_generic_resume(dev);
609
610 return(0);
611 }
612 #endif
613
614 /*
615 * Dettach it.
616 */
617 FW_DETACH(firewire)
618 {
619 FW_DETACH_START(firewire, sc);
620 struct firewire_comm *fc;
621 struct fw_device *fwdev, *fwdev_next;
622
623 fc = sc->fc;
624 fw_mtx_lock(&fc->wait_lock);
625 fc->status = FWBUSDETACH;
626 wakeup(fc);
627 if (fw_msleep(fc->probe_thread,
628 &fc->wait_lock, PWAIT, "fwthr", hz * 60))
629 printf("firewire probe thread didn't die\n");
630 fw_mtx_unlock(&fc->wait_lock);
631
632 FWDEV_DESTROYDEV(sc);
633 FIREWIRE_GENERIC_DETACH;
634
635 fw_callout_stop(&fc->timeout_callout);
636 fw_callout_stop(&fc->bmr_callout);
637 fw_callout_stop(&fc->busprobe_callout);
638
639 /* XXX xfree_free and untimeout on all xfers */
640 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL;
641 fwdev = fwdev_next) {
642 fwdev_next = STAILQ_NEXT(fwdev, link);
643 free(fwdev, M_FW);
644 }
645 free(fc->topology_map, M_FW);
646 free(fc->speed_map, M_FW);
647 free(fc->crom_src_buf, M_FW);
648
649 fw_mtx_destroy(&fc->wait_lock);
650 fw_mtx_destroy(&fc->tlabel_lock);
651 return(0);
652 }
653 #if defined(__FreeBSD__)
654 #if 0
655 static int
656 firewire_shutdown( device_t dev )
657 {
658 return 0;
659 }
660 #endif
661 #elif defined(__NetBSD__)
662 int
663 firewire_print(void *aux, const char *pnp)
664 {
665 struct fw_attach_args *fwa = (struct fw_attach_args *)aux;
666
667 if (pnp)
668 aprint_normal("%s at %s", fwa->name, pnp);
669
670 return UNCONF;
671 }
672
673 int
674 firewire_resume(struct firewire_comm *fc)
675 {
676
677 fc->status = FWBUSNOTREADY;
678 return 0;
679 }
680 #endif
681
682 static void
683 fw_xferq_drain(struct fw_xferq *xferq)
684 {
685 struct fw_xfer *xfer;
686
687 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
688 STAILQ_REMOVE_HEAD(&xferq->q, link);
689 #if 0
690 xferq->queued --;
691 #endif
692 xfer->resp = EAGAIN;
693 xfer->flag = FWXF_SENTERR;
694 fw_xfer_done(xfer);
695 }
696 }
697
698 void
699 fw_drain_txq(struct firewire_comm *fc)
700 {
701 struct fw_xfer *xfer, *txfer;
702 STAILQ_HEAD(, fw_xfer) xfer_drain;
703 int i;
704
705 STAILQ_INIT(&xfer_drain);
706
707 FW_GLOCK(fc);
708 fw_xferq_drain(fc->atq);
709 fw_xferq_drain(fc->ats);
710 for(i = 0; i < fc->nisodma; i++)
711 fw_xferq_drain(fc->it[i]);
712 FW_GUNLOCK(fc);
713
714 fw_mtx_lock(&fc->tlabel_lock);
715 for (i = 0; i < 0x40; i ++)
716 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
717 if (firewire_debug)
718 printf("tl=%d flag=%d\n", i, xfer->flag);
719 xfer->resp = EAGAIN;
720 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel);
721 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel);
722 }
723 fw_mtx_unlock(&fc->tlabel_lock);
724
725 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer)
726 xfer->hand(xfer);
727 }
728
729 static void
730 fw_reset_csr(struct firewire_comm *fc)
731 {
732 int i;
733
734 CSRARC(fc, STATE_CLEAR)
735 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
736 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
737 CSRARC(fc, NODE_IDS) = 0x3f;
738
739 CSRARC(fc, TOPO_MAP + 8) = 0;
740 fc->irm = -1;
741
742 fc->max_node = -1;
743
744 for(i = 2; i < 0x100/4 - 2 ; i++){
745 CSRARC(fc, SPED_MAP + i * 4) = 0;
746 }
747 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
748 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
749 CSRARC(fc, RESET_START) = 0;
750 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
751 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
752 CSRARC(fc, CYCLE_TIME) = 0x0;
753 CSRARC(fc, BUS_TIME) = 0x0;
754 CSRARC(fc, BUS_MGR_ID) = 0x3f;
755 CSRARC(fc, BANDWIDTH_AV) = 4915;
756 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
757 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
758 CSRARC(fc, IP_CHANNELS) = (1 << 31);
759
760 CSRARC(fc, CONF_ROM) = 0x04 << 24;
761 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
762 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
763 1 << 28 | 0xff << 16 | 0x09 << 8;
764 CSRARC(fc, CONF_ROM + 0xc) = 0;
765
766 /* DV depend CSRs see blue book */
767 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
768 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
769
770 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
771 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
772 }
773
774 static void
775 fw_init_crom(struct firewire_comm *fc)
776 {
777 struct crom_src *src;
778
779 fc->crom_src_buf = (struct crom_src_buf *)
780 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO);
781 if (fc->crom_src_buf == NULL)
782 return;
783
784 src = &fc->crom_src_buf->src;
785 memset(src, 0, sizeof(struct crom_src));
786
787 /* BUS info sample */
788 src->hdr.info_len = 4;
789
790 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
791
792 src->businfo.irmc = 1;
793 src->businfo.cmc = 1;
794 src->businfo.isc = 1;
795 src->businfo.bmc = 1;
796 src->businfo.pmc = 0;
797 src->businfo.cyc_clk_acc = 100;
798 src->businfo.max_rec = fc->maxrec;
799 src->businfo.max_rom = MAXROM_4;
800 src->businfo.generation = 1;
801 src->businfo.link_spd = fc->speed;
802
803 src->businfo.eui64.hi = fc->eui.hi;
804 src->businfo.eui64.lo = fc->eui.lo;
805
806 STAILQ_INIT(&src->chunk_list);
807
808 fc->crom_src = src;
809 fc->crom_root = &fc->crom_src_buf->root;
810 }
811
812 static void
813 fw_reset_crom(struct firewire_comm *fc)
814 {
815 struct crom_src_buf *buf;
816 struct crom_src *src;
817 struct crom_chunk *root;
818
819 if (fc->crom_src_buf == NULL)
820 fw_init_crom(fc);
821
822 buf = fc->crom_src_buf;
823 src = fc->crom_src;
824 root = fc->crom_root;
825
826 STAILQ_INIT(&src->chunk_list);
827
828 memset(root, 0, sizeof(struct crom_chunk));
829 crom_add_chunk(src, NULL, root, 0);
830 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
831 /* private company_id */
832 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
833 crom_add_simple_text(src, root, &buf->vendor, PROJECT_STR);
834 crom_add_entry(root, CSRKEY_HW, OS_VER);
835 crom_add_simple_text(src, root, &buf->hw, hostname);
836 }
837
838 /*
839 * Called after bus reset.
840 */
841 void
842 fw_busreset(struct firewire_comm *fc, uint32_t new_status)
843 {
844 struct firewire_dev_comm *fdc;
845 struct crom_src *src;
846 void *newrom;
847
848 switch(fc->status){
849 case FWBUSMGRELECT:
850 fw_callout_stop(&fc->bmr_callout);
851 break;
852 default:
853 break;
854 }
855 fc->status = new_status;
856 fw_reset_csr(fc);
857 fw_reset_crom(fc);
858
859 FIREWIRE_CHILDREN_FOREACH_FUNC(post_busreset, fdc);
860
861 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO);
862 src = &fc->crom_src_buf->src;
863 crom_load(src, (uint32_t *)newrom, CROMSIZE);
864 if (memcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
865 /* bump generation and reload */
866 src->businfo.generation ++;
867 /* generation must be between 0x2 and 0xF */
868 if (src->businfo.generation < 2)
869 src->businfo.generation ++;
870 crom_load(src, (uint32_t *)newrom, CROMSIZE);
871 bcopy(newrom, (void *)fc->config_rom, CROMSIZE);
872 }
873 free(newrom, M_FW);
874 }
875
876 /* Call once after reboot */
877 void fw_init(struct firewire_comm *fc)
878 {
879 int i;
880 #ifdef FW_VMACCESS
881 struct fw_xfer *xfer;
882 struct fw_bind *fwb;
883 #endif
884
885 fc->arq->queued = 0;
886 fc->ars->queued = 0;
887 fc->atq->queued = 0;
888 fc->ats->queued = 0;
889
890 fc->arq->buf = NULL;
891 fc->ars->buf = NULL;
892 fc->atq->buf = NULL;
893 fc->ats->buf = NULL;
894
895 fc->arq->flag = 0;
896 fc->ars->flag = 0;
897 fc->atq->flag = 0;
898 fc->ats->flag = 0;
899
900 STAILQ_INIT(&fc->atq->q);
901 STAILQ_INIT(&fc->ats->q);
902
903 for( i = 0 ; i < fc->nisodma ; i ++ ){
904 fc->it[i]->queued = 0;
905 fc->ir[i]->queued = 0;
906
907 fc->it[i]->start = NULL;
908 fc->ir[i]->start = NULL;
909
910 fc->it[i]->buf = NULL;
911 fc->ir[i]->buf = NULL;
912
913 fc->it[i]->flag = FWXFERQ_STREAM;
914 fc->ir[i]->flag = FWXFERQ_STREAM;
915
916 STAILQ_INIT(&fc->it[i]->q);
917 STAILQ_INIT(&fc->ir[i]->q);
918 }
919
920 fc->arq->maxq = FWMAXQUEUE;
921 fc->ars->maxq = FWMAXQUEUE;
922 fc->atq->maxq = FWMAXQUEUE;
923 fc->ats->maxq = FWMAXQUEUE;
924
925 for( i = 0 ; i < fc->nisodma ; i++){
926 fc->ir[i]->maxq = FWMAXQUEUE;
927 fc->it[i]->maxq = FWMAXQUEUE;
928 }
929 /* Initialize csr registers */
930 fc->topology_map = (struct fw_topology_map *)malloc(
931 sizeof(struct fw_topology_map),
932 M_FW, M_NOWAIT | M_ZERO);
933 fc->speed_map = (struct fw_speed_map *)malloc(
934 sizeof(struct fw_speed_map),
935 M_FW, M_NOWAIT | M_ZERO);
936 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
937 CSRARC(fc, TOPO_MAP + 4) = 1;
938 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
939 CSRARC(fc, SPED_MAP + 4) = 1;
940
941 STAILQ_INIT(&fc->devices);
942
943 /* Initialize Async handlers */
944 STAILQ_INIT(&fc->binds);
945 for( i = 0 ; i < 0x40 ; i++){
946 STAILQ_INIT(&fc->tlabels[i]);
947 }
948
949 /* DV depend CSRs see blue book */
950 #if 0
951 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
952 CSRARC(fc, oPCR) = 0x8000007a;
953 for(i = 4 ; i < 0x7c/4 ; i+=4){
954 CSRARC(fc, i + oPCR) = 0x8000007a;
955 }
956
957 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
958 CSRARC(fc, iPCR) = 0x803f0000;
959 for(i = 4 ; i < 0x7c/4 ; i+=4){
960 CSRARC(fc, i + iPCR) = 0x0;
961 }
962 #endif
963
964 fc->crom_src_buf = NULL;
965
966 #ifdef FW_VMACCESS
967 xfer = fw_xfer_alloc();
968 if(xfer == NULL) return;
969
970 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
971 if(fwb == NULL){
972 fw_xfer_free(xfer);
973 return;
974 }
975 xfer->hand = fw_vmaccess;
976 xfer->fc = fc;
977 xfer->sc = NULL;
978
979 fwb->start_hi = 0x2;
980 fwb->start_lo = 0;
981 fwb->addrlen = 0xffffffff;
982 fwb->xfer = xfer;
983 fw_bindadd(fc, fwb);
984 #endif
985 }
986
987 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\
988 ((fwb)->end < (addr))?1:0)
989
990 /*
991 * To lookup bound process from IEEE1394 address.
992 */
993 struct fw_bind *
994 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo)
995 {
996 u_int64_t addr;
997 struct fw_bind *tfw, *r = NULL;
998
999 addr = ((u_int64_t)dest_hi << 32) | dest_lo;
1000 FW_GLOCK(fc);
1001 STAILQ_FOREACH(tfw, &fc->binds, fclist)
1002 if (BIND_CMP(addr, tfw) == 0) {
1003 r = tfw;
1004 break;
1005 }
1006 FW_GUNLOCK(fc);
1007 return(r);
1008 }
1009
1010 /*
1011 * To bind IEEE1394 address block to process.
1012 */
1013 int
1014 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
1015 {
1016 struct fw_bind *tfw, *prev = NULL;
1017 int r = 0;
1018
1019 if (fwb->start > fwb->end) {
1020 printf("%s: invalid range\n", __func__);
1021 return EINVAL;
1022 }
1023
1024 FW_GLOCK(fc);
1025 STAILQ_FOREACH(tfw, &fc->binds, fclist) {
1026 if (fwb->end < tfw->start)
1027 break;
1028 prev = tfw;
1029 }
1030 if (prev == NULL)
1031 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
1032 else if (prev->end < fwb->start)
1033 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist);
1034 else {
1035 printf("%s: bind failed\n", __func__);
1036 r = EBUSY;
1037 }
1038 FW_GUNLOCK(fc);
1039 return (r);
1040 }
1041
1042 /*
1043 * To free IEEE1394 address block.
1044 */
1045 int
1046 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
1047 {
1048 #if 0
1049 struct fw_xfer *xfer, *next;
1050 #endif
1051 struct fw_bind *tfw;
1052 int s;
1053
1054 s = splfw();
1055 FW_GLOCK(fc);
1056 STAILQ_FOREACH(tfw, &fc->binds, fclist)
1057 if (tfw == fwb) {
1058 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
1059 goto found;
1060 }
1061
1062 printf("%s: no such binding\n", __func__);
1063 FW_GUNLOCK(fc);
1064 splx(s);
1065 return (1);
1066 found:
1067 #if 0
1068 /* shall we do this? */
1069 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
1070 next = STAILQ_NEXT(xfer, link);
1071 fw_xfer_free(xfer);
1072 }
1073 STAILQ_INIT(&fwb->xferlist);
1074 #endif
1075 FW_GUNLOCK(fc);
1076
1077 splx(s);
1078 return 0;
1079 }
1080
1081 int
1082 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type,
1083 int slen, int rlen, int n,
1084 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *))
1085 {
1086 int i, s;
1087 struct fw_xfer *xfer;
1088
1089 for (i = 0; i < n; i++) {
1090 xfer = fw_xfer_alloc_buf(type, slen, rlen);
1091 if (xfer == NULL)
1092 return (n);
1093 xfer->fc = fc;
1094 xfer->sc = sc;
1095 xfer->hand = hand;
1096 s = splfw();
1097 STAILQ_INSERT_TAIL(q, xfer, link);
1098 splx(s);
1099 }
1100 return (n);
1101 }
1102
1103 void
1104 fw_xferlist_remove(struct fw_xferlist *q)
1105 {
1106 struct fw_xfer *xfer, *next;
1107
1108 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) {
1109 next = STAILQ_NEXT(xfer, link);
1110 fw_xfer_free_buf(xfer);
1111 }
1112 STAILQ_INIT(q);
1113 }
1114
1115 /*
1116 * dump packet header
1117 */
1118 static void
1119 fw_dump_hdr(struct fw_pkt *fp, const char *prefix)
1120 {
1121 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x "
1122 "src=0x%03x\n", prefix,
1123 fp->mode.hdr.dst & 0x3f,
1124 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3,
1125 fp->mode.hdr.tcode, fp->mode.hdr.pri,
1126 fp->mode.hdr.src);
1127 }
1128
1129 /*
1130 * To free transaction label.
1131 */
1132 static void
1133 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
1134 {
1135 struct fw_xfer *txfer;
1136 int s;
1137
1138 if (xfer->tl < 0)
1139 return;
1140
1141 s = splfw();
1142 fw_mtx_lock(&fc->tlabel_lock);
1143 #if 1 /* make sure the label is allocated */
1144 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel)
1145 if(txfer == xfer)
1146 break;
1147 if (txfer == NULL) {
1148 printf("%s: the xfer is not in the queue "
1149 "(tlabel=%d, flag=0x%x)\n",
1150 __func__, xfer->tl, xfer->flag);
1151 fw_dump_hdr(&xfer->send.hdr, "send");
1152 fw_dump_hdr(&xfer->recv.hdr, "recv");
1153 kdb_backtrace();
1154 fw_mtx_unlock(&fc->tlabel_lock);
1155 splx(s);
1156 return;
1157 }
1158 #endif
1159
1160 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel);
1161 fw_mtx_unlock(&fc->tlabel_lock);
1162 splx(s);
1163 return;
1164 }
1165
1166 /*
1167 * To obtain XFER structure by transaction label.
1168 */
1169 static struct fw_xfer *
1170 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode)
1171 {
1172 struct fw_xfer *xfer;
1173 int s = splfw();
1174 int req;
1175
1176 fw_mtx_lock(&fc->tlabel_lock);
1177 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel)
1178 if(xfer->send.hdr.mode.hdr.dst == node) {
1179 fw_mtx_unlock(&fc->tlabel_lock);
1180 splx(s);
1181 FW_KASSERT(xfer->tl == tlabel,
1182 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel));
1183 /* extra sanity check */
1184 req = xfer->send.hdr.mode.hdr.tcode;
1185 if (xfer->fc->tcode[req].valid_res != tcode) {
1186 printf("%s: invalid response tcode "
1187 "(0x%x for 0x%x)\n", __func__,
1188 tcode, req);
1189 return(NULL);
1190 }
1191
1192 if (firewire_debug > 2)
1193 printf("fw_tl2xfer: found tl=%d\n", tlabel);
1194 return(xfer);
1195 }
1196 fw_mtx_unlock(&fc->tlabel_lock);
1197 if (firewire_debug > 1)
1198 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
1199 splx(s);
1200 return(NULL);
1201 }
1202
1203 /*
1204 * To allocate IEEE1394 XFER structure.
1205 */
1206 struct fw_xfer *
1207 fw_xfer_alloc(struct malloc_type *type)
1208 {
1209 struct fw_xfer *xfer;
1210
1211 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
1212 if (xfer == NULL)
1213 return xfer;
1214
1215 xfer->malloc = type;
1216
1217 return xfer;
1218 }
1219
1220 struct fw_xfer *
1221 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
1222 {
1223 struct fw_xfer *xfer;
1224
1225 xfer = fw_xfer_alloc(type);
1226 if (xfer == NULL)
1227 return(NULL);
1228 xfer->send.pay_len = send_len;
1229 xfer->recv.pay_len = recv_len;
1230 if (send_len > 0) {
1231 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO);
1232 if (xfer->send.payload == NULL) {
1233 fw_xfer_free(xfer);
1234 return(NULL);
1235 }
1236 }
1237 if (recv_len > 0) {
1238 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT);
1239 if (xfer->recv.payload == NULL) {
1240 if (xfer->send.payload != NULL)
1241 free(xfer->send.payload, type);
1242 fw_xfer_free(xfer);
1243 return(NULL);
1244 }
1245 }
1246 return(xfer);
1247 }
1248
1249 /*
1250 * IEEE1394 XFER post process.
1251 */
1252 void
1253 fw_xfer_done(struct fw_xfer *xfer)
1254 {
1255 if (xfer->hand == NULL) {
1256 printf("hand == NULL\n");
1257 return;
1258 }
1259
1260 if (xfer->fc == NULL)
1261 panic("fw_xfer_done: why xfer->fc is NULL?");
1262
1263 fw_tl_free(xfer->fc, xfer);
1264 xfer->hand(xfer);
1265 }
1266
1267 void
1268 fw_xfer_unload(struct fw_xfer* xfer)
1269 {
1270 int s;
1271
1272 if(xfer == NULL ) return;
1273 if(xfer->flag & FWXF_INQ){
1274 printf("fw_xfer_free FWXF_INQ\n");
1275 s = splfw();
1276 FW_GLOCK(xfer->fc);
1277 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
1278 #if 0
1279 xfer->q->queued --;
1280 #endif
1281 FW_GUNLOCK(xfer->fc);
1282 splx(s);
1283 }
1284 if (xfer->fc != NULL) {
1285 #if 1
1286 if(xfer->flag == FWXF_START)
1287 /*
1288 * This could happen if:
1289 * 1. We call fwohci_arcv() before fwohci_txd().
1290 * 2. firewire_watch() is called.
1291 */
1292 printf("fw_xfer_free FWXF_START\n");
1293 #endif
1294 }
1295 xfer->flag = FWXF_INIT;
1296 xfer->resp = 0;
1297 }
1298 /*
1299 * To free IEEE1394 XFER structure.
1300 */
1301 void
1302 fw_xfer_free_buf( struct fw_xfer* xfer)
1303 {
1304 if (xfer == NULL) {
1305 printf("%s: xfer == NULL\n", __func__);
1306 return;
1307 }
1308 fw_xfer_unload(xfer);
1309 if(xfer->send.payload != NULL){
1310 free(xfer->send.payload, xfer->malloc);
1311 }
1312 if(xfer->recv.payload != NULL){
1313 free(xfer->recv.payload, xfer->malloc);
1314 }
1315 free(xfer, xfer->malloc);
1316 }
1317
1318 void
1319 fw_xfer_free( struct fw_xfer* xfer)
1320 {
1321 if (xfer == NULL) {
1322 printf("%s: xfer == NULL\n", __func__);
1323 return;
1324 }
1325 fw_xfer_unload(xfer);
1326 free(xfer, xfer->malloc);
1327 }
1328
1329 void
1330 fw_asy_callback_free(struct fw_xfer *xfer)
1331 {
1332 #if 0
1333 printf("asyreq done flag=%d resp=%d\n",
1334 xfer->flag, xfer->resp);
1335 #endif
1336 fw_xfer_free(xfer);
1337 }
1338
1339 /*
1340 * To configure PHY.
1341 */
1342 static void
1343 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
1344 {
1345 struct fw_xfer *xfer;
1346 struct fw_pkt *fp;
1347
1348 fc->status = FWBUSPHYCONF;
1349
1350 xfer = fw_xfer_alloc(M_FWXFER);
1351 if (xfer == NULL)
1352 return;
1353 xfer->fc = fc;
1354 xfer->hand = fw_asy_callback_free;
1355
1356 fp = &xfer->send.hdr;
1357 fp->mode.ld[1] = 0;
1358 if (root_node >= 0)
1359 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23;
1360 if (gap_count >= 0)
1361 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16;
1362 fp->mode.ld[2] = ~fp->mode.ld[1];
1363 /* XXX Dangerous, how to pass PHY packet to device driver */
1364 fp->mode.common.tcode |= FWTCODE_PHY;
1365
1366 if (firewire_debug)
1367 printf("send phy_config root_node=%d gap_count=%d\n",
1368 root_node, gap_count);
1369 fw_asyreq(fc, -1, xfer);
1370 }
1371
1372 #if 0
1373 /*
1374 * Dump self ID.
1375 */
1376 static void
1377 fw_print_sid(uint32_t sid)
1378 {
1379 union fw_self_id *s;
1380 s = (union fw_self_id *) &sid;
1381 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1382 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1383 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1384 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1385 s->p0.power_class, s->p0.port0, s->p0.port1,
1386 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1387 }
1388 #endif
1389
1390 /*
1391 * To receive self ID.
1392 */
1393 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len)
1394 {
1395 uint32_t *p;
1396 union fw_self_id *self_id;
1397 u_int i, j, node, c_port = 0, i_branch = 0;
1398
1399 fc->sid_cnt = len /(sizeof(uint32_t) * 2);
1400 fc->max_node = fc->nodeid & 0x3f;
1401 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16;
1402 fc->status = FWBUSCYMELECT;
1403 fc->topology_map->crc_len = 2;
1404 fc->topology_map->generation ++;
1405 fc->topology_map->self_id_count = 0;
1406 fc->topology_map->node_count = 0;
1407 fc->speed_map->generation ++;
1408 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1409 self_id = &fc->topology_map->self_id[0];
1410 for(i = 0; i < fc->sid_cnt; i ++){
1411 if (sid[1] != ~sid[0]) {
1412 printf("fw_sidrcv: invalid self-id packet\n");
1413 sid += 2;
1414 continue;
1415 }
1416 *self_id = *((union fw_self_id *)sid);
1417 fc->topology_map->crc_len++;
1418 if(self_id->p0.sequel == 0){
1419 fc->topology_map->node_count ++;
1420 c_port = 0;
1421 #if 0
1422 fw_print_sid(sid[0]);
1423 #endif
1424 node = self_id->p0.phy_id;
1425 if(fc->max_node < node){
1426 fc->max_node = self_id->p0.phy_id;
1427 }
1428 /* XXX I'm not sure this is the right speed_map */
1429 fc->speed_map->speed[node][node]
1430 = self_id->p0.phy_speed;
1431 for (j = 0; j < node; j ++) {
1432 fc->speed_map->speed[j][node]
1433 = fc->speed_map->speed[node][j]
1434 = min(fc->speed_map->speed[j][j],
1435 self_id->p0.phy_speed);
1436 }
1437 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1438 (self_id->p0.link_active && self_id->p0.contender)) {
1439 fc->irm = self_id->p0.phy_id;
1440 }
1441 if(self_id->p0.port0 >= 0x2){
1442 c_port++;
1443 }
1444 if(self_id->p0.port1 >= 0x2){
1445 c_port++;
1446 }
1447 if(self_id->p0.port2 >= 0x2){
1448 c_port++;
1449 }
1450 }
1451 if(c_port > 2){
1452 i_branch += (c_port - 2);
1453 }
1454 sid += 2;
1455 self_id++;
1456 fc->topology_map->self_id_count ++;
1457 }
1458 fw_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1459 /* CRC */
1460 fc->topology_map->crc = fw_crc16(
1461 (uint32_t *)&fc->topology_map->generation,
1462 fc->topology_map->crc_len * 4);
1463 fc->speed_map->crc = fw_crc16(
1464 (uint32_t *)&fc->speed_map->generation,
1465 fc->speed_map->crc_len * 4);
1466 /* byteswap and copy to CSR */
1467 p = (uint32_t *)fc->topology_map;
1468 for (i = 0; i <= fc->topology_map->crc_len; i++)
1469 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1470 p = (uint32_t *)fc->speed_map;
1471 CSRARC(fc, SPED_MAP) = htonl(*p++);
1472 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1473 /* don't byte-swap uint8_t array */
1474 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1475
1476 fc->max_hop = fc->max_node - i_branch;
1477 aprint_normal(", maxhop <= %d", fc->max_hop);
1478
1479 if(fc->irm == -1 ){
1480 aprint_normal(", Not found IRM capable node");
1481 }else{
1482 aprint_normal(", cable IRM = %d", fc->irm);
1483 if (fc->irm == fc->nodeid)
1484 aprint_normal(" (me)");
1485 }
1486 aprint_normal("\n");
1487
1488 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1489 if (fc->irm == fc->nodeid) {
1490 fc->status = FWBUSMGRDONE;
1491 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1492 fw_bmr(fc);
1493 } else {
1494 fc->status = FWBUSMGRELECT;
1495 fw_callout_reset(&fc->bmr_callout, hz/8,
1496 (void *)fw_try_bmr, (void *)fc);
1497 }
1498 } else
1499 fc->status = FWBUSMGRDONE;
1500
1501 fw_callout_reset(&fc->busprobe_callout, hz/4,
1502 (void *)fw_bus_probe, (void *)fc);
1503 }
1504
1505 /*
1506 * To probe devices on the IEEE1394 bus.
1507 */
1508 static void
1509 fw_bus_probe(struct firewire_comm *fc)
1510 {
1511 int s;
1512 struct fw_device *fwdev;
1513
1514 s = splfw();
1515 fc->status = FWBUSEXPLORE;
1516
1517 /* Invalidate all devices, just after bus reset. */
1518 STAILQ_FOREACH(fwdev, &fc->devices, link)
1519 if (fwdev->status != FWDEVINVAL) {
1520 fwdev->status = FWDEVINVAL;
1521 fwdev->rcnt = 0;
1522 }
1523 splx(s);
1524
1525 wakeup((void *)fc);
1526 }
1527
1528 static int
1529 fw_explore_read_quads(struct fw_device *fwdev, int offset,
1530 uint32_t *quad, int n)
1531 {
1532 struct fw_xfer *xfer;
1533 uint32_t tmp;
1534 int i, error;
1535
1536
1537 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) {
1538 xfer = fwmem_read_quad(fwdev, NULL, -1,
1539 0xffff, 0xf0000000 | offset, (void *)&tmp,
1540 fw_xferwake);
1541 if (xfer == NULL)
1542 return (-1);
1543 fw_xferwait(xfer);
1544
1545 if (xfer->resp == 0)
1546 quad[i] = ntohl(tmp);
1547
1548 error = xfer->resp;
1549 fw_xfer_free(xfer);
1550 if (error)
1551 return (error);
1552 }
1553 return (0);
1554 }
1555
1556
1557 static int
1558 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur)
1559 {
1560 int err, i, off;
1561 struct csrdirectory *dir;
1562 struct csrreg *reg;
1563
1564
1565 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)];
1566 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset,
1567 (uint32_t *)dir, 1);
1568 if (err)
1569 return (-1);
1570
1571 offset += sizeof(uint32_t);
1572 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)];
1573 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset,
1574 (uint32_t *)reg, dir->crc_len);
1575 if (err)
1576 return (-1);
1577
1578 /* XXX check CRC */
1579
1580 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1);
1581 if (fwdev->rommax < off)
1582 fwdev->rommax = off;
1583
1584 if (recur == 0)
1585 return (0);
1586
1587 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) {
1588 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D)
1589 recur = 1;
1590 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L)
1591 recur = 0;
1592 else
1593 continue;
1594
1595 off = offset + reg[i].val * sizeof(uint32_t);
1596 if (off > CROMSIZE) {
1597 printf("%s: invalid offset %d\n", __func__, off);
1598 return(-1);
1599 }
1600 err = fw_explore_csrblock(fwdev, off, recur);
1601 if (err)
1602 return (-1);
1603 }
1604 return (0);
1605 }
1606
1607 static int
1608 fw_explore_node(struct fw_device *dfwdev)
1609 {
1610 struct firewire_comm *fc;
1611 struct fw_device *fwdev, *pfwdev, *tfwdev;
1612 uint32_t *csr;
1613 struct csrhdr *hdr;
1614 struct bus_info *binfo;
1615 int err, node, spd;
1616
1617 fc = dfwdev->fc;
1618 csr = dfwdev->csrrom;
1619 node = dfwdev->dst;
1620
1621 /* First quad */
1622 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1);
1623 if (err)
1624 return (-1);
1625 hdr = (struct csrhdr *)&csr[0];
1626 if (hdr->info_len != 4) {
1627 if (firewire_debug)
1628 printf("node%d: wrong bus info len(%d)\n",
1629 node, hdr->info_len);
1630 return (-1);
1631 }
1632
1633 /* bus info */
1634 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4);
1635 if (err)
1636 return (-1);
1637 binfo = (struct bus_info *)&csr[1];
1638 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) {
1639 if (firewire_debug)
1640 printf("node%d: invalid bus name 0x%08x\n",
1641 node, binfo->bus_name);
1642 return (-1);
1643 }
1644 spd = fc->speed_map->speed[fc->nodeid][node];
1645 STAILQ_FOREACH(fwdev, &fc->devices, link)
1646 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64))
1647 break;
1648 if (fwdev == NULL) {
1649 /* new device */
1650 fwdev = malloc(sizeof(struct fw_device), M_FW,
1651 M_NOWAIT | M_ZERO);
1652 if (fwdev == NULL) {
1653 if (firewire_debug)
1654 printf("node%d: no memory\n", node);
1655 return (-1);
1656 }
1657 fwdev->fc = fc;
1658 fwdev->eui = binfo->eui64;
1659 fwdev->status = FWDEVNEW;
1660 /* insert into sorted fwdev list */
1661 pfwdev = NULL;
1662 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1663 if (tfwdev->eui.hi > fwdev->eui.hi ||
1664 (tfwdev->eui.hi == fwdev->eui.hi &&
1665 tfwdev->eui.lo > fwdev->eui.lo))
1666 break;
1667 pfwdev = tfwdev;
1668 }
1669 if (pfwdev == NULL)
1670 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1671 else
1672 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1673
1674 fw_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1675 fw_linkspeed[spd],
1676 fwdev->eui.hi, fwdev->eui.lo);
1677
1678 } else
1679 fwdev->status = FWDEVINIT;
1680 fwdev->dst = node;
1681 fwdev->speed = spd;
1682
1683 /* unchanged ? */
1684 if (memcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) {
1685 if (firewire_debug)
1686 printf("node%d: crom unchanged\n", node);
1687 return (0);
1688 }
1689
1690 memset(&fwdev->csrrom[0], 0, CROMSIZE);
1691
1692 /* copy first quad and bus info block */
1693 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5);
1694 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4;
1695
1696 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */
1697
1698 if (err) {
1699 fwdev->status = FWDEVINVAL;
1700 fwdev->csrrom[0] = 0;
1701 }
1702 return (err);
1703
1704 }
1705
1706 /*
1707 * Find the self_id packet for a node, ignoring sequels.
1708 */
1709 static union fw_self_id *
1710 fw_find_self_id(struct firewire_comm *fc, int node)
1711 {
1712 uint32_t i;
1713 union fw_self_id *s;
1714
1715 for (i = 0; i < fc->topology_map->self_id_count; i++) {
1716 s = &fc->topology_map->self_id[i];
1717 if (s->p0.sequel)
1718 continue;
1719 if (s->p0.phy_id == node)
1720 return s;
1721 }
1722 return 0;
1723 }
1724
1725 static void
1726 fw_explore(struct firewire_comm *fc)
1727 {
1728 int node, err, s, i, todo, todo2, trys;
1729 char nodes[63];
1730 struct fw_device *dfwdev;
1731 union fw_self_id *fwsid;
1732
1733 todo = 0;
1734 dfwdev = malloc(sizeof(*dfwdev), M_TEMP, M_NOWAIT);
1735 if (dfwdev == NULL)
1736 return;
1737 /* setup dummy fwdev */
1738 dfwdev->fc = fc;
1739 dfwdev->speed = 0;
1740 dfwdev->maxrec = 8; /* 512 */
1741 dfwdev->status = FWDEVINIT;
1742
1743 for (node = 0; node <= fc->max_node; node ++) {
1744 /* We don't probe myself and linkdown nodes */
1745 if (node == fc->nodeid)
1746 continue;
1747 fwsid = fw_find_self_id(fc, node);
1748 if (!fwsid || !fwsid->p0.link_active) {
1749 if (firewire_debug)
1750 printf("node%d: link down\n", node);
1751 continue;
1752 }
1753 nodes[todo++] = node;
1754 }
1755
1756 s = splfw();
1757 for (trys = 0; todo > 0 && trys < 3; trys ++) {
1758 todo2 = 0;
1759 for (i = 0; i < todo; i ++) {
1760 dfwdev->dst = nodes[i];
1761 err = fw_explore_node(dfwdev);
1762 if (err)
1763 nodes[todo2++] = nodes[i];
1764 if (firewire_debug)
1765 printf("%s: node %d, err = %d\n",
1766 __func__, node, err);
1767 }
1768 todo = todo2;
1769 }
1770 splx(s);
1771 free(dfwdev, M_TEMP);
1772 }
1773
1774 static void
1775 fw_bus_probe_thread(void *arg)
1776 {
1777 struct firewire_comm *fc;
1778
1779 fc = (struct firewire_comm *)arg;
1780
1781 fw_config_pending_decr();
1782
1783 fw_mtx_lock(&fc->wait_lock);
1784 while (fc->status != FWBUSDETACH) {
1785 if (fc->status == FWBUSEXPLORE) {
1786 fw_mtx_unlock(&fc->wait_lock);
1787 fw_explore(fc);
1788 fc->status = FWBUSEXPDONE;
1789 if (firewire_debug)
1790 printf("bus_explore done\n");
1791 fw_attach_dev(fc);
1792 fw_mtx_lock(&fc->wait_lock);
1793 }
1794 fw_msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0);
1795 }
1796 fw_mtx_unlock(&fc->wait_lock);
1797 fw_kthread_exit(0);
1798 }
1799
1800
1801 /*
1802 * To attach sub-devices layer onto IEEE1394 bus.
1803 */
1804 static void
1805 fw_attach_dev(struct firewire_comm *fc)
1806 {
1807 struct fw_device *fwdev, *next;
1808 struct firewire_dev_comm *fdc;
1809 struct fw_attach_args fwa;
1810
1811 fwa.name = "sbp";
1812 fwa.fc = fc;
1813
1814 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1815 next = STAILQ_NEXT(fwdev, link);
1816 switch (fwdev->status) {
1817 case FWDEVNEW:
1818 FIREWIRE_SBP_ATTACH;
1819
1820 case FWDEVINIT:
1821 case FWDEVATTACHED:
1822 fwdev->status = FWDEVATTACHED;
1823 break;
1824
1825 case FWDEVINVAL:
1826 fwdev->rcnt ++;
1827 break;
1828
1829 default:
1830 /* XXX */
1831 break;
1832 }
1833 }
1834
1835 FIREWIRE_CHILDREN_FOREACH_FUNC(post_explore, fdc);
1836
1837 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1838 next = STAILQ_NEXT(fwdev, link);
1839 if (fwdev->rcnt > 0 && fwdev->rcnt > hold_count) {
1840 /*
1841 * Remove devices which have not been seen
1842 * for a while.
1843 */
1844 FIREWIRE_SBP_DETACH;
1845 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link);
1846 free(fwdev, M_FW);
1847 }
1848 }
1849
1850 return;
1851 }
1852
1853 /*
1854 * To allocate unique transaction label.
1855 */
1856 static int
1857 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1858 {
1859 u_int dst, new_tlabel;
1860 struct fw_xfer *txfer;
1861 int s;
1862
1863 dst = xfer->send.hdr.mode.hdr.dst & 0x3f;
1864 s = splfw();
1865 fw_mtx_lock(&fc->tlabel_lock);
1866 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f;
1867 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel)
1868 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst)
1869 break;
1870 if(txfer == NULL) {
1871 fc->last_tlabel[dst] = new_tlabel;
1872 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel);
1873 fw_mtx_unlock(&fc->tlabel_lock);
1874 splx(s);
1875 xfer->tl = new_tlabel;
1876 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2;
1877 if (firewire_debug > 1)
1878 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel);
1879 return (new_tlabel);
1880 }
1881 fw_mtx_unlock(&fc->tlabel_lock);
1882 splx(s);
1883
1884 if (firewire_debug > 1)
1885 printf("fw_get_tlabel: no free tlabel\n");
1886 return (-1);
1887 }
1888
1889 static void
1890 fw_rcv_copy(struct fw_rcv_buf *rb)
1891 {
1892 struct fw_pkt *pkt;
1893 u_char *p;
1894 const struct tcode_info *tinfo;
1895 u_int res, i, len, plen;
1896
1897 rb->xfer->recv.spd = rb->spd;
1898
1899 pkt = (struct fw_pkt *)rb->vec->iov_base;
1900 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode];
1901
1902 /* Copy header */
1903 p = (u_char *)&rb->xfer->recv.hdr;
1904 bcopy(rb->vec->iov_base, p, tinfo->hdr_len);
1905 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len;
1906 rb->vec->iov_len -= tinfo->hdr_len;
1907
1908 /* Copy payload */
1909 p = (u_char *)rb->xfer->recv.payload;
1910 res = rb->xfer->recv.pay_len;
1911
1912 /* special handling for RRESQ */
1913 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ &&
1914 p != NULL && res >= sizeof(uint32_t)) {
1915 *(uint32_t *)p = pkt->mode.rresq.data;
1916 rb->xfer->recv.pay_len = sizeof(uint32_t);
1917 return;
1918 }
1919
1920 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0)
1921 return;
1922
1923 plen = pkt->mode.rresb.len;
1924
1925 for (i = 0; i < rb->nvec; i++, rb->vec++) {
1926 len = MIN(rb->vec->iov_len, plen);
1927 if (res < len) {
1928 printf("rcv buffer(%d) is %d bytes short.\n",
1929 rb->xfer->recv.pay_len, len - res);
1930 len = res;
1931 }
1932 if (p) {
1933 bcopy(rb->vec->iov_base, p, len);
1934 p += len;
1935 }
1936 res -= len;
1937 plen -= len;
1938 if (res == 0 || plen == 0)
1939 break;
1940 }
1941 rb->xfer->recv.pay_len -= res;
1942
1943 }
1944
1945 /*
1946 * Generic packet receiving process.
1947 */
1948 void
1949 fw_rcv(struct fw_rcv_buf *rb)
1950 {
1951 struct fw_pkt *fp, *resfp;
1952 struct fw_bind *bind;
1953 int tcode;
1954 int i, len, oldstate;
1955 #if 0
1956 {
1957 uint32_t *qld;
1958 int i;
1959 qld = (uint32_t *)buf;
1960 printf("spd %d len:%d\n", spd, len);
1961 for( i = 0 ; i <= len && i < 32; i+= 4){
1962 printf("0x%08x ", ntohl(qld[i/4]));
1963 if((i % 16) == 15) printf("\n");
1964 }
1965 if((i % 16) != 15) printf("\n");
1966 }
1967 #endif
1968 fp = (struct fw_pkt *)rb->vec[0].iov_base;
1969 tcode = fp->mode.common.tcode;
1970 switch (tcode) {
1971 case FWTCODE_WRES:
1972 case FWTCODE_RRESQ:
1973 case FWTCODE_RRESB:
1974 case FWTCODE_LRES:
1975 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1976 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode);
1977 if(rb->xfer == NULL) {
1978 printf("fw_rcv: unknown response "
1979 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n",
1980 tcode_str[tcode], tcode,
1981 fp->mode.hdr.src,
1982 fp->mode.hdr.tlrt >> 2,
1983 fp->mode.hdr.tlrt & 3,
1984 fp->mode.rresq.data);
1985 #if 0
1986 printf("try ad-hoc work around!!\n");
1987 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1988 (fp->mode.hdr.tlrt >> 2)^3);
1989 if (rb->xfer == NULL) {
1990 printf("no use...\n");
1991 return;
1992 }
1993 #else
1994 return;
1995 #endif
1996 }
1997 fw_rcv_copy(rb);
1998 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP)
1999 rb->xfer->resp = EIO;
2000 else
2001 rb->xfer->resp = 0;
2002 /* make sure the packet is drained in AT queue */
2003 oldstate = rb->xfer->flag;
2004 rb->xfer->flag = FWXF_RCVD;
2005 switch (oldstate) {
2006 case FWXF_SENT:
2007 fw_xfer_done(rb->xfer);
2008 break;
2009 case FWXF_START:
2010 #if 0
2011 if (firewire_debug)
2012 printf("not sent yet tl=%x\n", rb->xfer->tl);
2013 #endif
2014 break;
2015 default:
2016 printf("unexpected flag 0x%02x\n", rb->xfer->flag);
2017 }
2018 return;
2019 case FWTCODE_WREQQ:
2020 case FWTCODE_WREQB:
2021 case FWTCODE_RREQQ:
2022 case FWTCODE_RREQB:
2023 case FWTCODE_LREQ:
2024 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi,
2025 fp->mode.rreqq.dest_lo);
2026 if(bind == NULL){
2027 #if 1
2028 printf("Unknown service addr 0x%04x:0x%08x %s(%x)"
2029 #if defined(__DragonFly__) || \
2030 (defined(__FreeBSD__) && __FreeBSD_version < 500000)
2031 " src=0x%x data=%lx\n",
2032 #else
2033 " src=0x%x data=%x\n",
2034 #endif
2035 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo,
2036 tcode_str[tcode], tcode,
2037 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data));
2038 #endif
2039 if (rb->fc->status == FWBUSINIT) {
2040 printf("fw_rcv: cannot respond(bus reset)!\n");
2041 return;
2042 }
2043 rb->xfer = fw_xfer_alloc(M_FWXFER);
2044 if(rb->xfer == NULL){
2045 return;
2046 }
2047 rb->xfer->send.spd = rb->spd;
2048 rb->xfer->send.pay_len = 0;
2049 resfp = &rb->xfer->send.hdr;
2050 switch (tcode) {
2051 case FWTCODE_WREQQ:
2052 case FWTCODE_WREQB:
2053 resfp->mode.hdr.tcode = FWTCODE_WRES;
2054 break;
2055 case FWTCODE_RREQQ:
2056 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
2057 break;
2058 case FWTCODE_RREQB:
2059 resfp->mode.hdr.tcode = FWTCODE_RRESB;
2060 break;
2061 case FWTCODE_LREQ:
2062 resfp->mode.hdr.tcode = FWTCODE_LRES;
2063 break;
2064 }
2065 resfp->mode.hdr.dst = fp->mode.hdr.src;
2066 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
2067 resfp->mode.hdr.pri = fp->mode.hdr.pri;
2068 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR;
2069 resfp->mode.rresb.extcode = 0;
2070 resfp->mode.rresb.len = 0;
2071 /*
2072 rb->xfer->hand = fw_xferwake;
2073 */
2074 rb->xfer->hand = fw_xfer_free;
2075 if(fw_asyreq(rb->fc, -1, rb->xfer)){
2076 fw_xfer_free(rb->xfer);
2077 return;
2078 }
2079 return;
2080 }
2081 len = 0;
2082 for (i = 0; i < rb->nvec; i ++)
2083 len += rb->vec[i].iov_len;
2084 rb->xfer = STAILQ_FIRST(&bind->xferlist);
2085 if (rb->xfer == NULL) {
2086 #if 1
2087 printf("Discard a packet for this bind.\n");
2088 #endif
2089 return;
2090 }
2091 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
2092 fw_rcv_copy(rb);
2093 rb->xfer->hand(rb->xfer);
2094 return;
2095 #if 0 /* shouldn't happen ?? or for GASP */
2096 case FWTCODE_STREAM:
2097 {
2098 struct fw_xferq *xferq;
2099
2100 xferq = rb->fc->ir[sub];
2101 #if 0
2102 printf("stream rcv dma %d len %d off %d spd %d\n",
2103 sub, len, off, spd);
2104 #endif
2105 if(xferq->queued >= xferq->maxq) {
2106 printf("receive queue is full\n");
2107 return;
2108 }
2109 /* XXX get xfer from xfer queue, we don't need copy for
2110 per packet mode */
2111 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
2112 vec[0].iov_len);
2113 if (rb->xfer == NULL)
2114 return;
2115 fw_rcv_copy(rb)
2116 s = splfw();
2117 xferq->queued++;
2118 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link);
2119 splx(s);
2120 sc = device_get_softc(rb->fc->bdev);
2121 #if defined(__DragonFly__) || \
2122 (defined(__FreeBSD__) && __FreeBSD_version < 500000)
2123 if (&xferq->rsel.si_pid != 0)
2124 #else
2125 if (SEL_WAITING(&xferq->rsel))
2126 #endif
2127 selwakeuppri(&xferq->rsel, FWPRI);
2128 if (xferq->flag & FWXFERQ_WAKEUP) {
2129 xferq->flag &= ~FWXFERQ_WAKEUP;
2130 wakeup((void *)xferq);
2131 }
2132 if (xferq->flag & FWXFERQ_HANDLER) {
2133 xferq->hand(xferq);
2134 }
2135 return;
2136 break;
2137 }
2138 #endif
2139 default:
2140 printf("fw_rcv: unknow tcode %d\n", tcode);
2141 break;
2142 }
2143 }
2144
2145 /*
2146 * Post process for Bus Manager election process.
2147 */
2148 static void
2149 fw_try_bmr_callback(struct fw_xfer *xfer)
2150 {
2151 struct firewire_comm *fc;
2152 int bmr;
2153
2154 if (xfer == NULL)
2155 return;
2156 fc = xfer->fc;
2157 if (xfer->resp != 0)
2158 goto error;
2159 if (xfer->recv.payload == NULL)
2160 goto error;
2161 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE)
2162 goto error;
2163
2164 bmr = ntohl(xfer->recv.payload[0]);
2165 if (bmr == 0x3f)
2166 bmr = fc->nodeid;
2167
2168 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
2169 fw_xfer_free_buf(xfer);
2170 fw_bmr(fc);
2171 return;
2172
2173 error:
2174 fw_printf(fc->bdev, "bus manager election failed\n");
2175 fw_xfer_free_buf(xfer);
2176 }
2177
2178
2179 /*
2180 * To candidate Bus Manager election process.
2181 */
2182 static void
2183 fw_try_bmr(void *arg)
2184 {
2185 struct fw_xfer *xfer;
2186 struct firewire_comm *fc = (struct firewire_comm *)arg;
2187 struct fw_pkt *fp;
2188 int err = 0;
2189
2190 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4);
2191 if(xfer == NULL){
2192 return;
2193 }
2194 xfer->send.spd = 0;
2195 fc->status = FWBUSMGRELECT;
2196
2197 fp = &xfer->send.hdr;
2198 fp->mode.lreq.dest_hi = 0xffff;
2199 fp->mode.lreq.tlrt = 0;
2200 fp->mode.lreq.tcode = FWTCODE_LREQ;
2201 fp->mode.lreq.pri = 0;
2202 fp->mode.lreq.src = 0;
2203 fp->mode.lreq.len = 8;
2204 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP;
2205 fp->mode.lreq.dst = FWLOCALBUS | fc->irm;
2206 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
2207 xfer->send.payload[0] = htonl(0x3f);
2208 xfer->send.payload[1] = htonl(fc->nodeid);
2209 xfer->hand = fw_try_bmr_callback;
2210
2211 err = fw_asyreq(fc, -1, xfer);
2212 if(err){
2213 fw_xfer_free_buf(xfer);
2214 return;
2215 }
2216 return;
2217 }
2218
2219 #ifdef FW_VMACCESS
2220 /*
2221 * Software implementation for physical memory block access.
2222 * XXX:Too slow, usef for debug purpose only.
2223 */
2224 static void
2225 fw_vmaccess(struct fw_xfer *xfer){
2226 struct fw_pkt *rfp, *sfp = NULL;
2227 uint32_t *ld = (uint32_t *)xfer->recv.buf;
2228
2229 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
2230 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2231 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2232 if(xfer->resp != 0){
2233 fw_xfer_free( xfer);
2234 return;
2235 }
2236 if(xfer->recv.buf == NULL){
2237 fw_xfer_free( xfer);
2238 return;
2239 }
2240 rfp = (struct fw_pkt *)xfer->recv.buf;
2241 switch(rfp->mode.hdr.tcode){
2242 /* XXX need fix for 64bit arch */
2243 case FWTCODE_WREQB:
2244 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2245 xfer->send.len = 12;
2246 sfp = (struct fw_pkt *)xfer->send.buf;
2247 bcopy(rfp->mode.wreqb.payload,
2248 (void *)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2249 sfp->mode.wres.tcode = FWTCODE_WRES;
2250 sfp->mode.wres.rtcode = 0;
2251 break;
2252 case FWTCODE_WREQQ:
2253 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2254 xfer->send.len = 12;
2255 sfp->mode.wres.tcode = FWTCODE_WRES;
2256 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2257 sfp->mode.wres.rtcode = 0;
2258 break;
2259 case FWTCODE_RREQB:
2260 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2261 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2262 sfp = (struct fw_pkt *)xfer->send.buf;
2263 bcopy((void *)ntohl(rfp->mode.rreqb.dest_lo),
2264 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len));
2265 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2266 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2267 sfp->mode.rresb.rtcode = 0;
2268 sfp->mode.rresb.extcode = 0;
2269 break;
2270 case FWTCODE_RREQQ:
2271 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2272 xfer->send.len = 16;
2273 sfp = (struct fw_pkt *)xfer->send.buf;
2274 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2275 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2276 sfp->mode.rresb.rtcode = 0;
2277 break;
2278 default:
2279 fw_xfer_free( xfer);
2280 return;
2281 }
2282 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2283 xfer->dst = ntohs(rfp->mode.hdr.src);
2284 xfer->hand = fw_xfer_free;
2285
2286 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2287 sfp->mode.hdr.pri = 0;
2288
2289 fw_asyreq(xfer->fc, -1, xfer);
2290 /**/
2291 return;
2292 }
2293 #endif
2294
2295 /*
2296 * CRC16 check-sum for IEEE1394 register blocks.
2297 */
2298 uint16_t
2299 fw_crc16(uint32_t *ptr, uint32_t len){
2300 uint32_t i, sum, crc = 0;
2301 int shift;
2302 len = (len + 3) & ~3;
2303 for(i = 0 ; i < len ; i+= 4){
2304 for( shift = 28 ; shift >= 0 ; shift -= 4){
2305 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2306 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2307 }
2308 crc &= 0xffff;
2309 }
2310 return((uint16_t) crc);
2311 }
2312
2313 static int
2314 fw_bmr(struct firewire_comm *fc)
2315 {
2316 struct fw_device fwdev;
2317 union fw_self_id *self_id;
2318 int cmstr;
2319 uint32_t quad;
2320
2321 /* Check to see if the current root node is cycle master capable */
2322 self_id = fw_find_self_id(fc, fc->max_node);
2323 if (fc->max_node > 0) {
2324 /* XXX check cmc bit of businfo block rather than contender */
2325 if (self_id->p0.link_active && self_id->p0.contender)
2326 cmstr = fc->max_node;
2327 else {
2328 fw_printf(fc->bdev,
2329 "root node is not cycle master capable\n");
2330 /* XXX shall we be the cycle master? */
2331 cmstr = fc->nodeid;
2332 /* XXX need bus reset */
2333 }
2334 } else
2335 cmstr = -1;
2336
2337 fw_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID));
2338 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
2339 /* We are not the bus manager */
2340 aprint_normal("\n");
2341 return(0);
2342 }
2343 aprint_normal("(me)\n");
2344
2345 /* Optimize gapcount */
2346 if(fc->max_hop <= MAX_GAPHOP )
2347 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
2348 /* If we are the cycle master, nothing to do */
2349 if (cmstr == fc->nodeid || cmstr == -1)
2350 return 0;
2351 /* Bus probe has not finished, make dummy fwdev for cmstr */
2352 memset(&fwdev, 0, sizeof(fwdev));
2353 fwdev.fc = fc;
2354 fwdev.dst = cmstr;
2355 fwdev.speed = 0;
2356 fwdev.maxrec = 8; /* 512 */
2357 fwdev.status = FWDEVINIT;
2358 /* Set cmstr bit on the cycle master */
2359 quad = htonl(1 << 8);
2360 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2361 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free);
2362
2363 return 0;
2364 }
2365
2366 int
2367 fw_open_isodma(struct firewire_comm *fc, int tx)
2368 {
2369 struct fw_xferq **xferqa;
2370 struct fw_xferq *xferq;
2371 int i;
2372
2373 if (tx)
2374 xferqa = &fc->it[0];
2375 else
2376 xferqa = &fc->ir[0];
2377
2378 FW_GLOCK(fc);
2379 for (i = 0; i < fc->nisodma; i ++) {
2380 xferq = xferqa[i];
2381 if ((xferq->flag & FWXFERQ_OPEN) == 0) {
2382 xferq->flag |= FWXFERQ_OPEN;
2383 break;
2384 }
2385 }
2386 if (i == fc->nisodma) {
2387 printf("no free dma channel (tx=%d)\n", tx);
2388 i = -1;
2389 }
2390 FW_GUNLOCK(fc);
2391 return (i);
2392 }
2393
2394 #if defined(__FreeBSD__)
2395 static int
2396 fw_modevent(module_t mode, int type, void *data)
2397 {
2398 int err = 0;
2399 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2400 static eventhandler_tag fwdev_ehtag = NULL;
2401 #endif
2402
2403 switch (type) {
2404 case MOD_LOAD:
2405 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2406 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone,
2407 fwdev_clone, 0, 1000);
2408 #endif
2409 break;
2410 case MOD_UNLOAD:
2411 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2412 if (fwdev_ehtag != NULL)
2413 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag);
2414 #endif
2415 break;
2416 case MOD_SHUTDOWN:
2417 break;
2418 default:
2419 return (EOPNOTSUPP);
2420 }
2421 return (err);
2422 }
2423
2424
2425 #ifdef __DragonFly__
2426 DECLARE_DUMMY_MODULE(firewire);
2427 #endif
2428 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0);
2429 MODULE_VERSION(firewire, 1);
2430 #endif
NetBSD on the FriendlyARM MINI2440