2 * Copyright (c) 2003 Hidetoshi Shimokawa
3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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:
17 * This product includes software developed by K. Kobayashi and H. Shimokawa
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.
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.
34 * $FreeBSD: src/sys/dev/firewire/firewire.c,v 1.68 2004/01/08 14:58:09 simokawa Exp $
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/types.h>
41 #include <sys/kernel.h>
42 #include <sys/malloc.h>
44 #include <sys/bus.h> /* used by smbus and newbus */
45 #include <sys/sysctl.h>
46 #include <sys/thread2.h>
48 #if defined(__DragonFly__) || __FreeBSD_version < 500000
49 #include <machine/clock.h> /* for DELAY() */
54 #include "firewirereg.h"
59 #include <dev/firewire/firewire.h>
60 #include <dev/firewire/firewirereg.h>
61 #include <dev/firewire/fwmem.h>
62 #include <dev/firewire/iec13213.h>
63 #include <dev/firewire/iec68113.h>
68 struct crom_chunk root;
69 struct crom_chunk vendor;
73 int firewire_debug=0, try_bmr=1, hold_count=3;
74 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
75 "FireWire driver debug flag");
76 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
77 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
78 "Try to be a bus manager");
79 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0,
80 "Number of count of bus resets for removing lost device information");
82 MALLOC_DEFINE(M_FW, "firewire", "FireWire");
83 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
85 #define FW_MAXASYRTY 4
87 devclass_t firewire_devclass;
89 static int firewire_probe (device_t);
90 static int firewire_attach (device_t);
91 static int firewire_detach (device_t);
92 static int firewire_resume (device_t);
94 static int firewire_shutdown (device_t);
96 static device_t firewire_add_child (device_t, device_t, int, const char *, int);
97 static void fw_try_bmr (void *);
98 static void fw_try_bmr_callback (struct fw_xfer *);
99 static void fw_asystart (struct fw_xfer *);
100 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *);
101 static void fw_bus_probe (struct firewire_comm *);
102 static void fw_bus_explore (struct firewire_comm *);
103 static void fw_bus_explore_callback (struct fw_xfer *);
104 static void fw_attach_dev (struct firewire_comm *);
106 static void fw_vmaccess (struct fw_xfer *);
108 struct fw_xfer *asyreqq (struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t,
109 u_int32_t, u_int32_t, void (*)(struct fw_xfer *));
110 static int fw_bmr (struct firewire_comm *);
113 * note: bus_generic_identify() will automatically install a "firewire"
114 * device under any attached fwohci device.
116 static device_method_t firewire_methods[] = {
117 /* Device interface */
118 DEVMETHOD(device_identify, bus_generic_identify),
119 DEVMETHOD(device_probe, firewire_probe),
120 DEVMETHOD(device_attach, firewire_attach),
121 DEVMETHOD(device_detach, firewire_detach),
122 DEVMETHOD(device_suspend, bus_generic_suspend),
123 DEVMETHOD(device_resume, firewire_resume),
124 DEVMETHOD(device_shutdown, bus_generic_shutdown),
127 DEVMETHOD(bus_add_child, firewire_add_child),
128 DEVMETHOD(bus_print_child, bus_generic_print_child),
132 char *linkspeed[] = {
133 "S100", "S200", "S400", "S800",
134 "S1600", "S3200", "undef", "undef"
137 static char *tcode_str[] = {
138 "WREQQ", "WREQB", "WRES", "undef",
139 "RREQQ", "RREQB", "RRESQ", "RRESB",
140 "CYCS", "LREQ", "STREAM", "LRES",
141 "undef", "undef", "PHY", "undef"
144 /* IEEE-1394a Table C-2 Gap count as a function of hops*/
145 #define MAX_GAPHOP 15
146 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
147 21, 24, 26, 29, 32, 35, 37, 40};
149 static driver_t firewire_driver = {
152 sizeof(struct firewire_softc),
156 * Lookup fwdev by node id.
159 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
161 struct fw_device *fwdev;
164 STAILQ_FOREACH(fwdev, &fc->devices, link)
165 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL)
173 * Lookup fwdev by EUI64.
176 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
178 struct fw_device *fwdev;
181 STAILQ_FOREACH(fwdev, &fc->devices, link)
182 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
186 if(fwdev == NULL) return NULL;
187 if(fwdev->status == FWDEVINVAL) return NULL;
192 * Async. request procedure for userland application.
195 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
198 struct fw_xferq *xferq;
202 struct tcode_info *info;
204 if(xfer == NULL) return EINVAL;
205 if(xfer->act.hand == NULL){
206 kprintf("act.hand == NULL\n");
209 fp = &xfer->send.hdr;
211 tcode = fp->mode.common.tcode & 0xf;
212 info = &fc->tcode[tcode];
213 if (info->flag == 0) {
214 kprintf("invalid tcode=%x\n", tcode);
217 if (info->flag & FWTI_REQ)
222 if (xfer->send.pay_len > MAXREC(fc->maxrec)) {
223 kprintf("send.pay_len > maxrec\n");
226 if (info->flag & FWTI_BLOCK_STR)
227 len = fp->mode.stream.len;
228 else if (info->flag & FWTI_BLOCK_ASY)
229 len = fp->mode.rresb.len;
232 if (len != xfer->send.pay_len){
233 kprintf("len(%d) != send.pay_len(%d) %s(%x)\n",
234 len, xfer->send.pay_len, tcode_str[tcode], tcode);
238 if(xferq->start == NULL){
239 kprintf("xferq->start == NULL\n");
242 if(!(xferq->queued < xferq->maxq)){
243 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
248 microtime(&xfer->tv);
249 if (info->flag & FWTI_TLABEL) {
250 if((tl = fw_get_tlabel(fc, xfer)) == -1 )
252 fp->mode.hdr.tlrt = tl << 2;
259 xfer->retry_req = fw_asybusy;
265 * Wakeup blocked process.
268 fw_asy_callback(struct fw_xfer *xfer){
273 * Postpone to later retry.
276 fw_asybusy(struct fw_xfer *xfer)
278 kprintf("fw_asybusy\n");
280 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
290 * Async. request with given xfer structure.
293 fw_asystart(struct fw_xfer *xfer)
295 struct firewire_comm *fc = xfer->fc;
297 if(xfer->retry++ >= fc->max_asyretry){
298 device_printf(fc->bdev, "max_asyretry exceeded\n");
300 xfer->state = FWXF_BUSY;
301 xfer->act.hand(xfer);
304 #if 0 /* XXX allow bus explore packets only after bus rest */
305 if (fc->status < FWBUSEXPLORE) {
307 xfer->state = FWXF_BUSY;
308 if (xfer->act.hand != NULL)
309 xfer->act.hand(xfer);
314 xfer->state = FWXF_INQ;
315 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
318 /* XXX just queue for mbuf */
319 if (xfer->mbuf == NULL)
325 firewire_probe(device_t dev)
327 device_set_desc(dev, "IEEE1394(FireWire) bus");
332 firewire_xfer_timeout(struct firewire_comm *fc)
334 struct fw_xfer *xfer;
337 struct timeval split_timeout;
340 split_timeout.tv_sec = 0;
341 split_timeout.tv_usec = 200 * 1000; /* 200 msec */
344 timevalsub(&tv, &split_timeout);
347 for (i = 0; i < 0x40; i ++) {
348 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
350 if (timevalcmp(&xfer->tv, &tv, >))
351 /* the rests are newer than this */
353 if (xfer->state == FWXF_START)
356 device_printf(fc->bdev,
357 "split transaction timeout dst=0x%x tl=0x%x state=%d\n",
358 xfer->send.hdr.mode.hdr.dst, i, xfer->state);
359 xfer->resp = ETIMEDOUT;
360 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link);
367 #define WATCHDOC_HZ 10
369 firewire_watchdog(void *arg)
371 struct firewire_comm *fc;
372 static int watchdoc_clock = 0;
374 fc = (struct firewire_comm *)arg;
377 * At boot stage, the device interrupt is disabled and
378 * We encounter a timeout easily. To avoid this,
379 * ignore clock interrupt for a while.
381 if (watchdoc_clock > WATCHDOC_HZ * 15) {
382 firewire_xfer_timeout(fc);
387 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ,
388 (void *)firewire_watchdog, (void *)fc);
392 * The attach routine.
395 firewire_attach(device_t dev)
398 struct firewire_softc *sc = device_get_softc(dev);
399 device_t pa = device_get_parent(dev);
400 struct firewire_comm *fc;
402 fc = (struct firewire_comm *)device_get_softc(pa);
404 fc->status = FWBUSNOTREADY;
406 unit = device_get_unit(dev);
407 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
411 CALLOUT_INIT(&sc->fc->timeout_callout);
412 CALLOUT_INIT(&sc->fc->bmr_callout);
413 CALLOUT_INIT(&sc->fc->retry_probe_callout);
414 CALLOUT_INIT(&sc->fc->busprobe_callout);
416 callout_reset(&sc->fc->timeout_callout, hz,
417 (void *)firewire_watchdog, (void *)sc->fc);
419 /* Locate our children */
420 bus_generic_probe(dev);
422 /* launch attachement of the added children */
423 bus_generic_attach(dev);
433 * Attach it as child.
436 firewire_add_child(device_t bus, device_t parent, int order, const char *name, int unit)
439 struct firewire_softc *sc;
441 sc = (struct firewire_softc *)device_get_softc(parent);
442 child = device_add_child(parent, name, unit);
444 device_set_ivars(child, sc->fc);
445 device_probe_and_attach(child);
452 firewire_resume(device_t dev)
454 struct firewire_softc *sc;
456 sc = (struct firewire_softc *)device_get_softc(dev);
457 sc->fc->status = FWBUSNOTREADY;
459 bus_generic_resume(dev);
468 firewire_detach(device_t dev)
470 struct firewire_softc *sc;
471 struct csrdir *csrd, *next;
472 struct fw_device *fwdev, *fwdev_next;
475 sc = (struct firewire_softc *)device_get_softc(dev);
476 if ((err = fwdev_destroydev(sc)) != 0)
479 if ((err = bus_generic_detach(dev)) != 0)
482 callout_stop(&sc->fc->timeout_callout);
483 callout_stop(&sc->fc->bmr_callout);
484 callout_stop(&sc->fc->retry_probe_callout);
485 callout_stop(&sc->fc->busprobe_callout);
487 /* XXX xfree_free and callout_stop on all xfers */
488 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL;
489 fwdev = fwdev_next) {
490 fwdev_next = STAILQ_NEXT(fwdev, link);
493 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) {
494 next = SLIST_NEXT(csrd, link);
497 kfree(sc->fc->topology_map, M_FW);
498 kfree(sc->fc->speed_map, M_FW);
499 kfree(sc->fc->crom_src_buf, M_FW);
504 firewire_shutdown( device_t dev )
512 fw_xferq_drain(struct fw_xferq *xferq)
514 struct fw_xfer *xfer;
516 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
517 STAILQ_REMOVE_HEAD(&xferq->q, link);
520 xfer->state = FWXF_SENTERR;
526 fw_drain_txq(struct firewire_comm *fc)
530 fw_xferq_drain(fc->atq);
531 fw_xferq_drain(fc->ats);
532 for(i = 0; i < fc->nisodma; i++)
533 fw_xferq_drain(fc->it[i]);
537 fw_reset_csr(struct firewire_comm *fc)
541 CSRARC(fc, STATE_CLEAR)
542 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
543 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
544 CSRARC(fc, NODE_IDS) = 0x3f;
546 CSRARC(fc, TOPO_MAP + 8) = 0;
551 for(i = 2; i < 0x100/4 - 2 ; i++){
552 CSRARC(fc, SPED_MAP + i * 4) = 0;
554 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
555 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
556 CSRARC(fc, RESET_START) = 0;
557 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
558 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
559 CSRARC(fc, CYCLE_TIME) = 0x0;
560 CSRARC(fc, BUS_TIME) = 0x0;
561 CSRARC(fc, BUS_MGR_ID) = 0x3f;
562 CSRARC(fc, BANDWIDTH_AV) = 4915;
563 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
564 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
565 CSRARC(fc, IP_CHANNELS) = (1 << 31);
567 CSRARC(fc, CONF_ROM) = 0x04 << 24;
568 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
569 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
570 1 << 28 | 0xff << 16 | 0x09 << 8;
571 CSRARC(fc, CONF_ROM + 0xc) = 0;
573 /* DV depend CSRs see blue book */
574 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
575 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
577 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
578 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
582 fw_init_crom(struct firewire_comm *fc)
584 struct crom_src *src;
586 fc->crom_src_buf = (struct crom_src_buf *)
587 kmalloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO);
589 src = &fc->crom_src_buf->src;
590 bzero(src, sizeof(struct crom_src));
592 /* BUS info sample */
593 src->hdr.info_len = 4;
595 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
597 src->businfo.irmc = 1;
598 src->businfo.cmc = 1;
599 src->businfo.isc = 1;
600 src->businfo.bmc = 1;
601 src->businfo.pmc = 0;
602 src->businfo.cyc_clk_acc = 100;
603 src->businfo.max_rec = fc->maxrec;
604 src->businfo.max_rom = MAXROM_4;
605 src->businfo.generation = 1;
606 src->businfo.link_spd = fc->speed;
608 src->businfo.eui64.hi = fc->eui.hi;
609 src->businfo.eui64.lo = fc->eui.lo;
611 STAILQ_INIT(&src->chunk_list);
614 fc->crom_root = &fc->crom_src_buf->root;
618 fw_reset_crom(struct firewire_comm *fc)
620 struct crom_src_buf *buf;
621 struct crom_src *src;
622 struct crom_chunk *root;
624 if (fc->crom_src_buf == NULL)
627 buf = fc->crom_src_buf;
629 root = fc->crom_root;
631 STAILQ_INIT(&src->chunk_list);
633 bzero(root, sizeof(struct crom_chunk));
634 crom_add_chunk(src, NULL, root, 0);
635 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
636 /* private company_id */
637 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
639 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project");
640 crom_add_entry(root, CSRKEY_HW, __DragonFly_version);
642 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project");
643 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version);
645 crom_add_simple_text(src, root, &buf->hw, hostname);
649 * Called after bus reset.
652 fw_busreset(struct firewire_comm *fc)
654 struct firewire_dev_comm *fdc;
655 struct crom_src *src;
662 callout_stop(&fc->bmr_callout);
667 fc->status = FWBUSRESET;
671 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) {
672 for( i = 0 ; i < devcnt ; i++)
673 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
674 fdc = device_get_softc(devlistp[i]);
675 if (fdc->post_busreset != NULL)
676 fdc->post_busreset(fdc);
678 kfree(devlistp, M_TEMP);
681 newrom = kmalloc(CROMSIZE, M_FW, M_WAITOK | M_ZERO);
682 src = &fc->crom_src_buf->src;
683 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
684 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
685 /* bump generation and reload */
686 src->businfo.generation ++;
687 /* generation must be between 0x2 and 0xF */
688 if (src->businfo.generation < 2)
689 src->businfo.generation ++;
690 crom_load(src, (u_int32_t *)newrom, CROMSIZE);
691 bcopy(newrom, (void *)fc->config_rom, CROMSIZE);
696 /* Call once after reboot */
698 fw_init(struct firewire_comm *fc)
703 struct fw_xfer *xfer;
707 fc->max_asyretry = FW_MAXASYRTY;
724 STAILQ_INIT(&fc->atq->q);
725 STAILQ_INIT(&fc->ats->q);
727 for( i = 0 ; i < fc->nisodma ; i ++ ){
728 fc->it[i]->queued = 0;
729 fc->ir[i]->queued = 0;
731 fc->it[i]->start = NULL;
732 fc->ir[i]->start = NULL;
734 fc->it[i]->buf = NULL;
735 fc->ir[i]->buf = NULL;
737 fc->it[i]->flag = FWXFERQ_STREAM;
738 fc->ir[i]->flag = FWXFERQ_STREAM;
740 STAILQ_INIT(&fc->it[i]->q);
741 STAILQ_INIT(&fc->ir[i]->q);
743 STAILQ_INIT(&fc->it[i]->binds);
744 STAILQ_INIT(&fc->ir[i]->binds);
747 fc->arq->maxq = FWMAXQUEUE;
748 fc->ars->maxq = FWMAXQUEUE;
749 fc->atq->maxq = FWMAXQUEUE;
750 fc->ats->maxq = FWMAXQUEUE;
752 for( i = 0 ; i < fc->nisodma ; i++){
753 fc->ir[i]->maxq = FWMAXQUEUE;
754 fc->it[i]->maxq = FWMAXQUEUE;
756 /* Initialize csr registers */
757 fc->topology_map = kmalloc(sizeof(struct fw_topology_map),
758 M_FW, M_WAITOK | M_ZERO);
759 fc->speed_map = kmalloc(sizeof(struct fw_speed_map),
760 M_FW, M_WAITOK | M_ZERO);
761 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
762 CSRARC(fc, TOPO_MAP + 4) = 1;
763 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
764 CSRARC(fc, SPED_MAP + 4) = 1;
766 STAILQ_INIT(&fc->devices);
768 /* Initialize csr ROM work space */
769 SLIST_INIT(&fc->ongocsr);
770 SLIST_INIT(&fc->csrfree);
771 for( i = 0 ; i < FWMAXCSRDIR ; i++){
772 csrd = kmalloc(sizeof(struct csrdir), M_FW, M_WAITOK);
773 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
776 /* Initialize Async handlers */
777 STAILQ_INIT(&fc->binds);
778 for( i = 0 ; i < 0x40 ; i++){
779 STAILQ_INIT(&fc->tlabels[i]);
782 /* DV depend CSRs see blue book */
784 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
785 CSRARC(fc, oPCR) = 0x8000007a;
786 for(i = 4 ; i < 0x7c/4 ; i+=4){
787 CSRARC(fc, i + oPCR) = 0x8000007a;
790 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
791 CSRARC(fc, iPCR) = 0x803f0000;
792 for(i = 4 ; i < 0x7c/4 ; i+=4){
793 CSRARC(fc, i + iPCR) = 0x0;
797 fc->crom_src_buf = NULL;
800 xfer = fw_xfer_alloc();
801 if(xfer == NULL) return;
803 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
804 xfer->act.hand = fw_vmaccess;
810 fwb->addrlen = 0xffffffff;
816 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\
817 ((fwb)->end < (addr))?1:0)
820 * To lookup binded process from IEEE1394 address.
823 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo)
828 addr = ((u_int64_t)dest_hi << 32) | dest_lo;
829 STAILQ_FOREACH(tfw, &fc->binds, fclist)
830 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0)
836 * To bind IEEE1394 address block to process.
839 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
841 struct fw_bind *tfw, *prev = NULL;
843 if (fwb->start > fwb->end) {
844 kprintf("%s: invalid range\n", __func__);
848 STAILQ_FOREACH(tfw, &fc->binds, fclist) {
849 if (fwb->end < tfw->start)
854 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
857 if (prev->end < fwb->start) {
858 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist);
862 kprintf("%s: bind failed\n", __func__);
866 if (fwb->act_type == FWACT_CH)
867 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist);
872 * To free IEEE1394 address block.
875 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
878 struct fw_xfer *xfer, *next;
883 STAILQ_FOREACH(tfw, &fc->binds, fclist)
885 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
889 kprintf("%s: no such bind\n", __func__);
894 /* shall we do this? */
895 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
896 next = STAILQ_NEXT(xfer, link);
899 STAILQ_INIT(&fwb->xferlist);
907 * To free transaction label.
910 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
915 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
916 tl = STAILQ_NEXT(tl, link)){
917 if(tl->xfer == xfer){
918 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
927 * To obtain XFER structure by transaction label.
929 static struct fw_xfer *
930 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel)
932 struct fw_xfer *xfer;
937 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
938 tl = STAILQ_NEXT(tl, link)){
939 if(tl->xfer->send.hdr.mode.hdr.dst == node){
942 if (firewire_debug > 2)
943 kprintf("fw_tl2xfer: found tl=%d\n", tlabel);
947 if (firewire_debug > 1)
948 kprintf("fw_tl2xfer: not found tl=%d\n", tlabel);
954 * To allocate IEEE1394 XFER structure.
957 fw_xfer_alloc(struct malloc_type *type)
959 struct fw_xfer *xfer;
961 xfer = kmalloc(sizeof(struct fw_xfer), type, M_INTWAIT | M_ZERO);
968 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
970 struct fw_xfer *xfer;
972 xfer = fw_xfer_alloc(type);
975 xfer->send.pay_len = send_len;
976 xfer->recv.pay_len = recv_len;
978 xfer->send.payload = kmalloc(send_len, type, M_INTWAIT | M_ZERO);
979 if (xfer->send.payload == NULL) {
985 xfer->recv.payload = kmalloc(recv_len, type, M_INTWAIT);
986 if (xfer->recv.payload == NULL) {
987 if (xfer->send.payload != NULL)
988 kfree(xfer->send.payload, type);
997 * IEEE1394 XFER post process.
1000 fw_xfer_done(struct fw_xfer *xfer)
1002 if (xfer->act.hand == NULL) {
1003 kprintf("act.hand == NULL\n");
1007 if (xfer->fc == NULL)
1008 panic("fw_xfer_done: why xfer->fc is NULL?");
1010 xfer->act.hand(xfer);
1014 fw_xfer_unload(struct fw_xfer* xfer)
1016 if(xfer == NULL ) return;
1017 if(xfer->state == FWXF_INQ){
1018 kprintf("fw_xfer_free FWXF_INQ\n");
1020 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
1024 if (xfer->fc != NULL) {
1026 if(xfer->state == FWXF_START)
1028 * This could happen if:
1029 * 1. We call fwohci_arcv() before fwohci_txd().
1030 * 2. firewire_watch() is called.
1032 kprintf("fw_xfer_free FWXF_START\n");
1034 fw_tl_free(xfer->fc, xfer);
1036 xfer->state = FWXF_INIT;
1041 * To free IEEE1394 XFER structure.
1044 fw_xfer_free_buf( struct fw_xfer* xfer)
1047 kprintf("%s: xfer == NULL\n", __func__);
1050 fw_xfer_unload(xfer);
1051 if(xfer->send.payload != NULL){
1052 kfree(xfer->send.payload, xfer->malloc);
1054 if(xfer->recv.payload != NULL){
1055 kfree(xfer->recv.payload, xfer->malloc);
1057 kfree(xfer, xfer->malloc);
1061 fw_xfer_free( struct fw_xfer* xfer)
1064 kprintf("%s: xfer == NULL\n", __func__);
1067 fw_xfer_unload(xfer);
1068 kfree(xfer, xfer->malloc);
1072 fw_asy_callback_free(struct fw_xfer *xfer)
1075 kprintf("asyreq done state=%d resp=%d\n",
1076 xfer->state, xfer->resp);
1085 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
1087 struct fw_xfer *xfer;
1090 fc->status = FWBUSPHYCONF;
1092 xfer = fw_xfer_alloc(M_FWXFER);
1096 xfer->retry_req = fw_asybusy;
1097 xfer->act.hand = fw_asy_callback_free;
1099 fp = &xfer->send.hdr;
1102 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23;
1104 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16;
1105 fp->mode.ld[2] = ~fp->mode.ld[1];
1106 /* XXX Dangerous, how to pass PHY packet to device driver */
1107 fp->mode.common.tcode |= FWTCODE_PHY;
1110 kprintf("send phy_config root_node=%d gap_count=%d\n",
1111 root_node, gap_count);
1112 fw_asyreq(fc, -1, xfer);
1120 fw_print_sid(u_int32_t sid)
1122 union fw_self_id *s;
1123 s = (union fw_self_id *) &sid;
1124 kprintf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1125 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1126 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1127 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1128 s->p0.power_class, s->p0.port0, s->p0.port1,
1129 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1134 * To receive self ID.
1137 fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len)
1140 union fw_self_id *self_id;
1141 u_int i, j, node, c_port = 0, i_branch = 0;
1143 fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
1144 fc->status = FWBUSINIT;
1145 fc->max_node = fc->nodeid & 0x3f;
1146 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
1147 fc->status = FWBUSCYMELECT;
1148 fc->topology_map->crc_len = 2;
1149 fc->topology_map->generation ++;
1150 fc->topology_map->self_id_count = 0;
1151 fc->topology_map->node_count = 0;
1152 fc->speed_map->generation ++;
1153 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1154 self_id = &fc->topology_map->self_id[0];
1155 for(i = 0; i < fc->sid_cnt; i ++){
1156 if (sid[1] != ~sid[0]) {
1157 kprintf("fw_sidrcv: invalid self-id packet\n");
1161 *self_id = *((union fw_self_id *)sid);
1162 fc->topology_map->crc_len++;
1163 if(self_id->p0.sequel == 0){
1164 fc->topology_map->node_count ++;
1167 fw_print_sid(sid[0]);
1169 node = self_id->p0.phy_id;
1170 if(fc->max_node < node){
1171 fc->max_node = self_id->p0.phy_id;
1173 /* XXX I'm not sure this is the right speed_map */
1174 fc->speed_map->speed[node][node]
1175 = self_id->p0.phy_speed;
1176 for (j = 0; j < node; j ++) {
1177 fc->speed_map->speed[j][node]
1178 = fc->speed_map->speed[node][j]
1179 = min(fc->speed_map->speed[j][j],
1180 self_id->p0.phy_speed);
1182 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1183 (self_id->p0.link_active && self_id->p0.contender)) {
1184 fc->irm = self_id->p0.phy_id;
1186 if(self_id->p0.port0 >= 0x2){
1189 if(self_id->p0.port1 >= 0x2){
1192 if(self_id->p0.port2 >= 0x2){
1197 i_branch += (c_port - 2);
1201 fc->topology_map->self_id_count ++;
1203 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1205 fc->topology_map->crc = fw_crc16(
1206 (u_int32_t *)&fc->topology_map->generation,
1207 fc->topology_map->crc_len * 4);
1208 fc->speed_map->crc = fw_crc16(
1209 (u_int32_t *)&fc->speed_map->generation,
1210 fc->speed_map->crc_len * 4);
1211 /* byteswap and copy to CSR */
1212 p = (u_int32_t *)fc->topology_map;
1213 for (i = 0; i <= fc->topology_map->crc_len; i++)
1214 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1215 p = (u_int32_t *)fc->speed_map;
1216 CSRARC(fc, SPED_MAP) = htonl(*p++);
1217 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1218 /* don't byte-swap u_int8_t array */
1219 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1221 fc->max_hop = fc->max_node - i_branch;
1222 kprintf(", maxhop <= %d", fc->max_hop);
1225 kprintf(", Not found IRM capable node");
1227 kprintf(", cable IRM = %d", fc->irm);
1228 if (fc->irm == fc->nodeid)
1233 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1234 if (fc->irm == fc->nodeid) {
1235 fc->status = FWBUSMGRDONE;
1236 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1239 fc->status = FWBUSMGRELECT;
1240 callout_reset(&fc->bmr_callout, hz/8,
1241 (void *)fw_try_bmr, (void *)fc);
1244 fc->status = FWBUSMGRDONE;
1246 callout_reset(&fc->busprobe_callout, hz/4,
1247 (void *)fw_bus_probe, (void *)fc);
1251 * To probe devices on the IEEE1394 bus.
1254 fw_bus_probe(struct firewire_comm *fc)
1256 struct fw_device *fwdev;
1259 fc->status = FWBUSEXPLORE;
1260 fc->retry_count = 0;
1262 /* Invalidate all devices, just after bus reset. */
1263 STAILQ_FOREACH(fwdev, &fc->devices, link)
1264 if (fwdev->status != FWDEVINVAL) {
1265 fwdev->status = FWDEVINVAL;
1270 fc->ongoaddr = CSRROMOFF;
1272 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1278 * To collect device informations on the IEEE1394 bus.
1281 fw_bus_explore(struct firewire_comm *fc )
1284 struct fw_device *fwdev, *pfwdev, *tfwdev;
1286 struct fw_xfer *xfer;
1289 if(fc->status != FWBUSEXPLORE)
1293 if(fc->ongonode == fc->nodeid) fc->ongonode++;
1295 if(fc->ongonode > fc->max_node) goto done;
1296 if(fc->ongonode >= 0x3f) goto done;
1299 /* XXX we need to check phy_id first */
1300 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
1302 kprintf("node%d: link down\n", fc->ongonode);
1307 if(fc->ongoaddr <= CSRROMOFF &&
1308 fc->ongoeui.hi == 0xffffffff &&
1309 fc->ongoeui.lo == 0xffffffff ){
1310 fc->ongoaddr = CSRROMOFF;
1311 addr = 0xf0000000 | fc->ongoaddr;
1312 }else if(fc->ongoeui.hi == 0xffffffff ){
1313 fc->ongoaddr = CSRROMOFF + 0xc;
1314 addr = 0xf0000000 | fc->ongoaddr;
1315 }else if(fc->ongoeui.lo == 0xffffffff ){
1316 fc->ongoaddr = CSRROMOFF + 0x10;
1317 addr = 0xf0000000 | fc->ongoaddr;
1318 }else if(fc->ongodev == NULL){
1319 STAILQ_FOREACH(fwdev, &fc->devices, link)
1320 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui))
1323 fwdev->dst = fc->ongonode;
1324 fwdev->status = FWDEVINIT;
1325 fc->ongodev = fwdev;
1326 fc->ongoaddr = CSRROMOFF;
1327 addr = 0xf0000000 | fc->ongoaddr;
1330 fwdev = kmalloc(sizeof(struct fw_device), M_FW,
1334 fwdev->dst = fc->ongonode;
1335 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
1336 fwdev->status = FWDEVINIT;
1337 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
1340 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1341 if (tfwdev->eui.hi > fwdev->eui.hi ||
1342 (tfwdev->eui.hi == fwdev->eui.hi &&
1343 tfwdev->eui.lo > fwdev->eui.lo))
1348 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1350 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1352 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1353 linkspeed[fwdev->speed],
1354 fc->ongoeui.hi, fc->ongoeui.lo);
1356 fc->ongodev = fwdev;
1357 fc->ongoaddr = CSRROMOFF;
1358 addr = 0xf0000000 | fc->ongoaddr;
1360 addr = 0xf0000000 | fc->ongoaddr;
1364 xfer = asyreqq(fc, FWSPD_S100, 0, 0,
1365 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
1366 fw_bus_explore_callback);
1367 if(xfer == NULL) goto done;
1369 xfer = fw_xfer_alloc(M_FWXFER);
1374 fp = &xfer->send.hdr;
1375 fp->mode.rreqq.dest_hi = 0xffff;
1376 fp->mode.rreqq.tlrt = 0;
1377 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1378 fp->mode.rreqq.pri = 0;
1379 fp->mode.rreqq.src = 0;
1380 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode;
1381 fp->mode.rreqq.dest_lo = addr;
1382 xfer->act.hand = fw_bus_explore_callback;
1385 kprintf("node%d: explore addr=0x%x\n",
1386 fc->ongonode, fc->ongoaddr);
1387 err = fw_asyreq(fc, -1, xfer);
1389 fw_xfer_free( xfer);
1395 /* fw_attach_devs */
1396 fc->status = FWBUSEXPDONE;
1398 kprintf("bus_explore done\n");
1404 /* Portable Async. request read quad */
1406 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt,
1407 u_int32_t addr_hi, u_int32_t addr_lo,
1408 void (*hand) (struct fw_xfer*))
1410 struct fw_xfer *xfer;
1414 xfer = fw_xfer_alloc(M_FWXFER);
1418 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */
1419 fp = &xfer->send.hdr;
1420 fp->mode.rreqq.dest_hi = addr_hi & 0xffff;
1421 if(tl & FWP_TL_VALID){
1422 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
1424 fp->mode.rreqq.tlrt = 0;
1426 fp->mode.rreqq.tlrt |= rt & 0x3;
1427 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
1428 fp->mode.rreqq.pri = 0;
1429 fp->mode.rreqq.src = 0;
1430 fp->mode.rreqq.dst = addr_hi >> 16;
1431 fp->mode.rreqq.dest_lo = addr_lo;
1432 xfer->act.hand = hand;
1434 err = fw_asyreq(fc, -1, xfer);
1436 fw_xfer_free( xfer);
1443 * Callback for the IEEE1394 bus information collection.
1446 fw_bus_explore_callback(struct fw_xfer *xfer)
1448 struct firewire_comm *fc;
1449 struct fw_pkt *sfp,*rfp;
1450 struct csrhdr *chdr;
1451 struct csrdir *csrd;
1452 struct csrreg *csrreg;
1457 kprintf("xfer == NULL\n");
1463 kprintf("node%d: callback addr=0x%x\n",
1464 fc->ongonode, fc->ongoaddr);
1466 if(xfer->resp != 0){
1467 kprintf("node%d: resp=%d addr=0x%x\n",
1468 fc->ongonode, xfer->resp, fc->ongoaddr);
1472 sfp = &xfer->send.hdr;
1473 rfp = &xfer->recv.hdr;
1478 qld = (u_int32_t *)xfer->recv.buf;
1479 kprintf("len:%d\n", xfer->recv.len);
1480 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
1481 kprintf("0x%08x ", rfp->mode.ld[i/4]);
1482 if((i % 16) == 15) kprintf("\n");
1484 if((i % 16) != 15) kprintf("\n");
1487 if(fc->ongodev == NULL){
1488 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){
1489 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
1490 chdr = (struct csrhdr *)(void *)(&rfp->mode.rresq.data);
1491 /* If CSR is minimal confinguration, more investgation is not needed. */
1492 if(chdr->info_len == 1){
1494 kprintf("node%d: minimal config\n",
1498 fc->ongoaddr = CSRROMOFF + 0xc;
1500 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){
1501 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
1502 fc->ongoaddr = CSRROMOFF + 0x10;
1503 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){
1504 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
1505 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) {
1507 kprintf("node%d: eui64 is zero.\n",
1511 fc->ongoaddr = CSRROMOFF;
1514 if (fc->ongoaddr == CSRROMOFF &&
1515 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) {
1516 fc->ongodev->status = FWDEVATTACHED;
1519 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
1520 if(fc->ongoaddr > fc->ongodev->rommax){
1521 fc->ongodev->rommax = fc->ongoaddr;
1523 csrd = SLIST_FIRST(&fc->ongocsr);
1524 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1525 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1528 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
1531 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
1532 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
1533 if( csrreg->key == 0x81 || csrreg->key == 0xd1){
1534 csrd = SLIST_FIRST(&fc->csrfree);
1538 csrd->ongoaddr = fc->ongoaddr;
1539 fc->ongoaddr += csrreg->val * 4;
1540 csrd->off = fc->ongoaddr;
1541 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1542 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1548 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
1549 (fc->ongodev->rommax < 0x414)){
1550 if(fc->ongodev->rommax <= 0x414){
1551 csrd = SLIST_FIRST(&fc->csrfree);
1552 if(csrd == NULL) goto nextnode;
1553 csrd->off = fc->ongoaddr;
1554 csrd->ongoaddr = fc->ongoaddr;
1555 SLIST_REMOVE_HEAD(&fc->csrfree, link);
1556 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
1561 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
1565 fc->ongoaddr = csrd->ongoaddr + 4;
1566 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1567 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1568 csrd = SLIST_FIRST(&fc->ongocsr);
1569 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
1570 chdr = (struct csrhdr *)(fc->ongodev->csrrom);
1573 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
1577 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
1582 fw_xfer_free( xfer);
1587 if (fc->ongodev != NULL)
1588 fc->ongodev->status = FWDEVINVAL;
1590 fw_xfer_free( xfer);
1592 /* housekeeping work space */
1593 fc->ongoaddr = CSRROMOFF;
1595 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
1596 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
1597 SLIST_REMOVE_HEAD(&fc->ongocsr, link);
1598 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
1605 * To attach sub-devices layer onto IEEE1394 bus.
1608 fw_attach_dev(struct firewire_comm *fc)
1610 struct fw_device *fwdev, *next;
1614 struct firewire_dev_comm *fdc;
1616 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1617 next = STAILQ_NEXT(fwdev, link);
1618 if (fwdev->status == FWDEVINIT) {
1619 fwdev->status = FWDEVATTACHED;
1620 } else if (fwdev->status == FWDEVINVAL) {
1622 if (fwdev->rcnt > hold_count) {
1624 * Remove devices which have not been seen
1627 STAILQ_REMOVE(&fc->devices, fwdev, fw_device,
1634 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1637 for( i = 0 ; i < devcnt ; i++){
1638 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1639 fdc = device_get_softc(devlistp[i]);
1640 if (fdc->post_explore != NULL)
1641 fdc->post_explore(fdc);
1644 kfree(devlistp, M_TEMP);
1646 if (fc->retry_count > 0) {
1647 kprintf("probe failed for %d node\n", fc->retry_count);
1649 callout_reset(&fc->retry_probe_callout, hz*2,
1650 (void *)fc->ibr, (void *)fc);
1657 * To allocate uniq transaction label.
1660 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1663 struct tlabel *tl, *tmptl;
1664 static u_int32_t label = 0;
1667 for( i = 0 ; i < 0x40 ; i ++){
1668 label = (label + 1) & 0x3f;
1669 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
1670 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
1671 if (tmptl->xfer->send.hdr.mode.hdr.dst ==
1672 xfer->send.hdr.mode.hdr.dst)
1676 tl = kmalloc(sizeof(struct tlabel), M_FW, M_WAITOK);
1678 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
1680 if (firewire_debug > 1)
1681 kprintf("fw_get_tlabel: dst=%d tl=%d\n",
1682 xfer->send.hdr.mode.hdr.dst, label);
1688 kprintf("fw_get_tlabel: no free tlabel\n");
1693 fw_rcv_copy(struct fw_rcv_buf *rb)
1697 struct tcode_info *tinfo;
1698 u_int res, i, len, plen;
1700 rb->xfer->recv.spd -= rb->spd;
1702 pkt = (struct fw_pkt *)rb->vec->iov_base;
1703 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode];
1706 p = (u_char *)&rb->xfer->recv.hdr;
1707 bcopy(rb->vec->iov_base, p, tinfo->hdr_len);
1708 rb->vec->iov_base = (uint8_t *)rb->vec->iov_base + tinfo->hdr_len;
1709 rb->vec->iov_len -= tinfo->hdr_len;
1712 p = (u_char *)rb->xfer->recv.payload;
1713 res = rb->xfer->recv.pay_len;
1715 /* special handling for RRESQ */
1716 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ &&
1717 p != NULL && res >= sizeof(u_int32_t)) {
1718 *(u_int32_t *)p = pkt->mode.rresq.data;
1719 rb->xfer->recv.pay_len = sizeof(u_int32_t);
1723 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0)
1726 plen = pkt->mode.rresb.len;
1728 for (i = 0; i < rb->nvec; i++, rb->vec++) {
1729 len = MIN(rb->vec->iov_len, plen);
1731 kprintf("rcv buffer(%d) is %d bytes short.\n",
1732 rb->xfer->recv.pay_len, len - res);
1735 bcopy(rb->vec->iov_base, p, len);
1739 if (res == 0 || plen == 0)
1742 rb->xfer->recv.pay_len -= res;
1747 * Generic packet receving process.
1750 fw_rcv(struct fw_rcv_buf *rb)
1752 struct fw_pkt *fp, *resfp;
1753 struct fw_bind *bind;
1755 int i, len, oldstate;
1760 qld = (u_int32_t *)buf;
1761 kprintf("spd %d len:%d\n", spd, len);
1762 for( i = 0 ; i <= len && i < 32; i+= 4){
1763 kprintf("0x%08x ", ntohl(qld[i/4]));
1764 if((i % 16) == 15) kprintf("\n");
1766 if((i % 16) != 15) kprintf("\n");
1769 fp = (struct fw_pkt *)rb->vec[0].iov_base;
1770 tcode = fp->mode.common.tcode;
1776 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1777 fp->mode.hdr.tlrt >> 2);
1778 if(rb->xfer == NULL) {
1779 kprintf("fw_rcv: unknown response "
1780 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n",
1781 tcode_str[tcode], tcode,
1783 fp->mode.hdr.tlrt >> 2,
1784 fp->mode.hdr.tlrt & 3,
1785 fp->mode.rresq.data);
1787 kprintf("try ad-hoc work around!!\n");
1788 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1789 (fp->mode.hdr.tlrt >> 2)^3);
1790 if (rb->xfer == NULL) {
1791 kprintf("no use...\n");
1799 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP)
1800 rb->xfer->resp = EIO;
1803 /* make sure the packet is drained in AT queue */
1804 oldstate = rb->xfer->state;
1805 rb->xfer->state = FWXF_RCVD;
1808 fw_xfer_done(rb->xfer);
1813 kprintf("not sent yet tl=%x\n", rb->xfer->tl);
1817 kprintf("unexpected state %d\n", rb->xfer->state);
1825 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi,
1826 fp->mode.rreqq.dest_lo);
1828 kprintf("Unknown service addr 0x%04x:0x%08x %s(%x)"
1829 " src=0x%x data=%x\n",
1830 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo,
1831 tcode_str[tcode], tcode,
1832 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data));
1833 if (rb->fc->status == FWBUSRESET) {
1834 kprintf("fw_rcv: cannot respond(bus reset)!\n");
1837 rb->xfer = fw_xfer_alloc(M_FWXFER);
1838 if(rb->xfer == NULL){
1841 rb->xfer->send.spd = rb->spd;
1842 rb->xfer->send.pay_len = 0;
1843 resfp = &rb->xfer->send.hdr;
1847 resfp->mode.hdr.tcode = FWTCODE_WRES;
1850 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1853 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1856 resfp->mode.hdr.tcode = FWTCODE_LRES;
1859 resfp->mode.hdr.dst = fp->mode.hdr.src;
1860 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1861 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1862 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR;
1863 resfp->mode.rresb.extcode = 0;
1864 resfp->mode.rresb.len = 0;
1866 rb->xfer->act.hand = fw_asy_callback;
1868 rb->xfer->act.hand = fw_xfer_free;
1869 if(fw_asyreq(rb->fc, -1, rb->xfer)){
1870 fw_xfer_free(rb->xfer);
1876 for (i = 0; i < rb->nvec; i ++)
1877 len += rb->vec[i].iov_len;
1878 switch(bind->act_type){
1881 rb->xfer = STAILQ_FIRST(&bind->xferlist);
1882 if (rb->xfer == NULL) {
1883 kprintf("Discard a packet for this bind.\n");
1887 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1890 rb->xfer->act.hand(rb->xfer);
1894 if(rb->fc->ir[bind->sub]->queued >=
1895 rb->fc->ir[bind->sub]->maxq){
1896 device_printf(rb->fc->bdev,
1897 "Discard a packet %x %d\n",
1899 rb->fc->ir[bind->sub]->queued);
1903 rb->xfer = STAILQ_FIRST(&bind->xferlist);
1904 if (rb->xfer == NULL) {
1905 kprintf("Discard packet for this bind\n");
1908 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1912 rb->fc->ir[bind->sub]->queued++;
1913 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q,
1917 wakeup((caddr_t)rb->fc->ir[bind->sub]);
1926 #if 0 /* shouldn't happen ?? or for GASP */
1927 case FWTCODE_STREAM:
1929 struct fw_xferq *xferq;
1931 xferq = rb->fc->ir[sub];
1933 kprintf("stream rcv dma %d len %d off %d spd %d\n",
1934 sub, len, off, spd);
1936 if(xferq->queued >= xferq->maxq) {
1937 kprintf("receive queue is full\n");
1940 /* XXX get xfer from xfer queue, we don't need copy for
1942 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
1944 if (rb->xfer == NULL) goto err;
1948 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link);
1950 sc = device_get_softc(rb->fc->bdev);
1951 KNOTE(&xferq->rkq.ki_note, 0);
1952 if (xferq->flag & FWXFERQ_WAKEUP) {
1953 xferq->flag &= ~FWXFERQ_WAKEUP;
1954 wakeup((caddr_t)xferq);
1956 if (xferq->flag & FWXFERQ_HANDLER) {
1964 kprintf("fw_rcv: unknow tcode %d\n", tcode);
1972 * Post process for Bus Manager election process.
1975 fw_try_bmr_callback(struct fw_xfer *xfer)
1977 struct firewire_comm *fc;
1983 if (xfer->resp != 0)
1985 if (xfer->recv.payload == NULL)
1987 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE)
1990 bmr = ntohl(xfer->recv.payload[0]);
1994 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
1995 fw_xfer_free_buf(xfer);
2000 device_printf(fc->bdev, "bus manager election failed\n");
2001 fw_xfer_free_buf(xfer);
2006 * To candidate Bus Manager election process.
2009 fw_try_bmr(void *arg)
2011 struct fw_xfer *xfer;
2012 struct firewire_comm *fc = (struct firewire_comm *)arg;
2016 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4);
2021 fc->status = FWBUSMGRELECT;
2023 fp = &xfer->send.hdr;
2024 fp->mode.lreq.dest_hi = 0xffff;
2025 fp->mode.lreq.tlrt = 0;
2026 fp->mode.lreq.tcode = FWTCODE_LREQ;
2027 fp->mode.lreq.pri = 0;
2028 fp->mode.lreq.src = 0;
2029 fp->mode.lreq.len = 8;
2030 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP;
2031 fp->mode.lreq.dst = FWLOCALBUS | fc->irm;
2032 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
2033 xfer->send.payload[0] = htonl(0x3f);
2034 xfer->send.payload[1] = htonl(fc->nodeid);
2035 xfer->act.hand = fw_try_bmr_callback;
2037 err = fw_asyreq(fc, -1, xfer);
2039 fw_xfer_free_buf(xfer);
2047 * Software implementation for physical memory block access.
2048 * XXX:Too slow, usef for debug purpose only.
2051 fw_vmaccess(struct fw_xfer *xfer){
2052 struct fw_pkt *rfp, *sfp = NULL;
2053 u_int32_t *ld = (u_int32_t *)xfer->recv.buf;
2055 kprintf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
2056 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2057 kprintf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2058 if(xfer->resp != 0){
2059 fw_xfer_free( xfer);
2062 if(xfer->recv.buf == NULL){
2063 fw_xfer_free( xfer);
2066 rfp = (struct fw_pkt *)xfer->recv.buf;
2067 switch(rfp->mode.hdr.tcode){
2068 /* XXX need fix for 64bit arch */
2070 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK);
2071 xfer->send.len = 12;
2072 sfp = (struct fw_pkt *)xfer->send.buf;
2073 bcopy(rfp->mode.wreqb.payload,
2074 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2075 sfp->mode.wres.tcode = FWTCODE_WRES;
2076 sfp->mode.wres.rtcode = 0;
2079 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK);
2080 xfer->send.len = 12;
2081 sfp->mode.wres.tcode = FWTCODE_WRES;
2082 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2083 sfp->mode.wres.rtcode = 0;
2086 xfer->send.buf = kmalloc(16 + rfp->mode.rreqb.len, M_FW, M_WAITOK);
2087 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2088 sfp = (struct fw_pkt *)xfer->send.buf;
2089 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2090 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
2091 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2092 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2093 sfp->mode.rresb.rtcode = 0;
2094 sfp->mode.rresb.extcode = 0;
2097 xfer->send.buf = kmalloc(16, M_FW, M_WAITOK);
2098 xfer->send.len = 16;
2099 sfp = (struct fw_pkt *)xfer->send.buf;
2100 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2101 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2102 sfp->mode.rresb.rtcode = 0;
2105 fw_xfer_free( xfer);
2108 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2109 xfer->dst = ntohs(rfp->mode.hdr.src);
2110 xfer->act.hand = fw_xfer_free;
2111 xfer->retry_req = fw_asybusy;
2113 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2114 sfp->mode.hdr.pri = 0;
2116 fw_asyreq(xfer->fc, -1, xfer);
2123 * CRC16 check-sum for IEEE1394 register blocks.
2126 fw_crc16(u_int32_t *ptr, u_int32_t len){
2127 u_int32_t i, sum, crc = 0;
2129 len = (len + 3) & ~3;
2130 for(i = 0 ; i < len ; i+= 4){
2131 for( shift = 28 ; shift >= 0 ; shift -= 4){
2132 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2133 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2137 return((u_int16_t) crc);
2141 fw_bmr(struct firewire_comm *fc)
2143 struct fw_device fwdev;
2144 union fw_self_id *self_id;
2148 /* Check to see if the current root node is cycle master capable */
2149 self_id = &fc->topology_map->self_id[fc->max_node];
2150 if (fc->max_node > 0) {
2151 /* XXX check cmc bit of businfo block rather than contender */
2152 if (self_id->p0.link_active && self_id->p0.contender)
2153 cmstr = fc->max_node;
2155 device_printf(fc->bdev,
2156 "root node is not cycle master capable\n");
2157 /* XXX shall we be the cycle master? */
2159 /* XXX need bus reset */
2164 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID));
2165 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
2166 /* We are not the bus manager */
2172 /* Optimize gapcount */
2173 if(fc->max_hop <= MAX_GAPHOP )
2174 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
2175 /* If we are the cycle master, nothing to do */
2176 if (cmstr == fc->nodeid || cmstr == -1)
2178 /* Bus probe has not finished, make dummy fwdev for cmstr */
2179 bzero(&fwdev, sizeof(fwdev));
2183 fwdev.maxrec = 8; /* 512 */
2184 fwdev.status = FWDEVINIT;
2185 /* Set cmstr bit on the cycle master */
2186 quad = htonl(1 << 8);
2187 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2188 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free);
2194 fw_modevent(module_t mode, int type, void *data)
2197 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2198 static eventhandler_tag fwdev_ehtag = NULL;
2203 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2204 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone,
2205 fwdev_clone, 0, 1000);
2209 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2210 if (fwdev_ehtag != NULL)
2211 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag);
2221 * This causes the firewire identify to be called for any attached fwohci
2222 * device in the system.
2224 DECLARE_DUMMY_MODULE(firewire);
2225 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,NULL);
2226 MODULE_VERSION(firewire, 1);