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.
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/types.h>
42 #include <sys/kernel.h>
43 #include <sys/module.h>
44 #include <sys/malloc.h>
46 #include <sys/sysctl.h>
47 #include <sys/kthread.h>
51 #if defined(__DragonFly__) || __FreeBSD_version < 500000
52 #include <machine/clock.h> /* for DELAY() */
55 #include <sys/bus.h> /* used by smbus and newbus */
56 #include <machine/bus.h>
60 #include "firewirereg.h"
65 #include <dev/firewire/firewire.h>
66 #include <dev/firewire/firewirereg.h>
67 #include <dev/firewire/fwmem.h>
68 #include <dev/firewire/iec13213.h>
69 #include <dev/firewire/iec68113.h>
74 struct crom_chunk root;
75 struct crom_chunk vendor;
79 int firewire_debug=0, try_bmr=1, hold_count=3;
80 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
81 "FireWire driver debug flag");
82 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem");
83 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
84 "Try to be a bus manager");
85 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0,
86 "Number of count of bus resets for removing lost device information");
88 MALLOC_DEFINE(M_FW, "firewire", "FireWire");
89 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
91 #define FW_MAXASYRTY 4
93 devclass_t firewire_devclass;
95 static void firewire_identify (driver_t *, device_t);
96 static int firewire_probe (device_t);
97 static int firewire_attach (device_t);
98 static int firewire_detach (device_t);
99 static int firewire_resume (device_t);
100 static void firewire_xfer_timeout(void *, int);
102 static int firewire_shutdown (device_t);
104 static device_t firewire_add_child (device_t, int, const char *, int);
105 static void fw_try_bmr (void *);
106 static void fw_try_bmr_callback (struct fw_xfer *);
107 static void fw_asystart (struct fw_xfer *);
108 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *);
109 static void fw_bus_probe (struct firewire_comm *);
110 static void fw_attach_dev (struct firewire_comm *);
111 static void fw_bus_probe_thread(void *);
113 static void fw_vmaccess (struct fw_xfer *);
115 static int fw_bmr (struct firewire_comm *);
116 static void fw_dump_hdr(struct fw_pkt *, char *);
118 static device_method_t firewire_methods[] = {
119 /* Device interface */
120 DEVMETHOD(device_identify, firewire_identify),
121 DEVMETHOD(device_probe, firewire_probe),
122 DEVMETHOD(device_attach, firewire_attach),
123 DEVMETHOD(device_detach, firewire_detach),
124 DEVMETHOD(device_suspend, bus_generic_suspend),
125 DEVMETHOD(device_resume, firewire_resume),
126 DEVMETHOD(device_shutdown, bus_generic_shutdown),
129 DEVMETHOD(bus_add_child, firewire_add_child),
130 DEVMETHOD(bus_print_child, bus_generic_print_child),
134 char *linkspeed[] = {
135 "S100", "S200", "S400", "S800",
136 "S1600", "S3200", "undef", "undef"
139 static char *tcode_str[] = {
140 "WREQQ", "WREQB", "WRES", "undef",
141 "RREQQ", "RREQB", "RRESQ", "RRESB",
142 "CYCS", "LREQ", "STREAM", "LRES",
143 "undef", "undef", "PHY", "undef"
146 /* IEEE-1394a Table C-2 Gap count as a function of hops*/
147 #define MAX_GAPHOP 15
148 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
149 21, 24, 26, 29, 32, 35, 37, 40};
151 static driver_t firewire_driver = {
154 sizeof(struct firewire_softc),
158 * Lookup fwdev by node id.
161 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
163 struct fw_device *fwdev;
167 STAILQ_FOREACH(fwdev, &fc->devices, link)
168 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL)
176 * Lookup fwdev by EUI64.
179 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
181 struct fw_device *fwdev;
186 STAILQ_FOREACH(fwdev, &fc->devices, link)
187 if (FW_EUI64_EQUAL(fwdev->eui, *eui))
192 if(fwdev == NULL) return NULL;
193 if(fwdev->status == FWDEVINVAL) return NULL;
198 * Async. request procedure for userland application.
201 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
204 struct fw_xferq *xferq;
208 struct tcode_info *info;
210 if(xfer == NULL) return EINVAL;
211 if(xfer->hand == NULL){
212 printf("hand == NULL\n");
215 fp = &xfer->send.hdr;
217 tcode = fp->mode.common.tcode & 0xf;
218 info = &fc->tcode[tcode];
219 if (info->flag == 0) {
220 printf("invalid tcode=%x\n", tcode);
224 /* XXX allow bus explore packets only after bus rest */
225 if ((fc->status < FWBUSEXPLORE) &&
226 ((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) ||
227 (fp->mode.rreqq.dest_lo < 0xf0000000) ||
228 (fp->mode.rreqq.dest_lo >= 0xf0001000))) {
230 xfer->flag = FWXF_BUSY;
234 if (info->flag & FWTI_REQ)
239 if (xfer->send.pay_len > MAXREC(fc->maxrec)) {
240 printf("send.pay_len > maxrec\n");
243 if (info->flag & FWTI_BLOCK_STR)
244 len = fp->mode.stream.len;
245 else if (info->flag & FWTI_BLOCK_ASY)
246 len = fp->mode.rresb.len;
249 if (len != xfer->send.pay_len){
250 printf("len(%d) != send.pay_len(%d) %s(%x)\n",
251 len, xfer->send.pay_len, tcode_str[tcode], tcode);
255 if(xferq->start == NULL){
256 printf("xferq->start == NULL\n");
259 if(!(xferq->queued < xferq->maxq)){
260 device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
266 if (info->flag & FWTI_TLABEL) {
267 if (fw_get_tlabel(fc, xfer) < 0)
279 * Wakeup blocked process.
282 fw_xferwake(struct fw_xfer *xfer)
284 struct mtx *lock = &xfer->fc->wait_lock;
287 xfer->flag |= FWXF_WAKE;
295 fw_xferwait(struct fw_xfer *xfer)
297 struct mtx *lock = &xfer->fc->wait_lock;
301 if ((xfer->flag & FWXF_WAKE) == 0)
302 err = msleep((void *)xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0);
309 * Async. request with given xfer structure.
312 fw_asystart(struct fw_xfer *xfer)
314 struct firewire_comm *fc = xfer->fc;
317 /* Protect from interrupt/timeout */
319 xfer->flag = FWXF_INQ;
320 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
326 /* XXX just queue for mbuf */
327 if (xfer->mbuf == NULL)
333 firewire_identify(driver_t *driver, device_t parent)
335 BUS_ADD_CHILD(parent, 0, "firewire", -1);
339 firewire_probe(device_t dev)
341 device_set_desc(dev, "IEEE1394(FireWire) bus");
346 firewire_xfer_timeout(void *arg, int pending)
348 struct firewire_comm *fc = (struct firewire_comm *)arg;
349 struct fw_xfer *xfer, *txfer;
351 struct timeval split_timeout;
352 STAILQ_HEAD(, fw_xfer) xfer_timeout;
355 split_timeout.tv_sec = 0;
356 split_timeout.tv_usec = 200 * 1000; /* 200 msec */
359 timevalsub(&tv, &split_timeout);
360 STAILQ_INIT(&xfer_timeout);
364 for (i = 0; i < 0x40; i ++) {
365 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
366 if ((xfer->flag & FWXF_SENT) == 0)
369 if (timevalcmp(&xfer->tv, &tv, >))
370 /* the rests are newer than this */
372 device_printf(fc->bdev,
373 "split transaction timeout: "
374 "tl=0x%x flag=0x%02x\n", i, xfer->flag);
375 fw_dump_hdr(&xfer->send.hdr, "send");
376 xfer->resp = ETIMEDOUT;
377 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel);
378 STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel);
385 STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer)
389 #define WATCHDOG_HZ 10
391 firewire_watchdog(void *arg)
393 struct firewire_comm *fc;
394 static int watchdog_clock = 0;
396 fc = (struct firewire_comm *)arg;
399 * At boot stage, the device interrupt is disabled and
400 * We encounter a timeout easily. To avoid this,
401 * ignore clock interrupt for a while.
403 if (watchdog_clock > WATCHDOG_HZ * 15)
404 taskqueue_enqueue(fc->taskqueue, &fc->task_timeout);
408 callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ,
409 (void *)firewire_watchdog, (void *)fc);
413 * The attach routine.
416 firewire_attach(device_t dev)
419 struct firewire_softc *sc = device_get_softc(dev);
420 device_t pa = device_get_parent(dev);
421 struct firewire_comm *fc;
423 fc = (struct firewire_comm *)device_get_softc(pa);
425 fc->status = FWBUSNOTREADY;
427 unit = device_get_unit(dev);
428 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
432 mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF);
433 CALLOUT_INIT(&fc->timeout_callout);
434 CALLOUT_INIT(&fc->bmr_callout);
435 CALLOUT_INIT(&fc->busprobe_callout);
436 TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc);
438 callout_reset(&sc->fc->timeout_callout, hz,
439 (void *)firewire_watchdog, (void *)sc->fc);
442 kthread_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread,
443 0, 0, "fw%d_probe", unit);
445 /* Locate our children */
446 bus_generic_probe(dev);
448 /* launch attachement of the added children */
449 bus_generic_attach(dev);
452 fw_busreset(fc, FWBUSNOTREADY);
459 * Attach it as child.
462 firewire_add_child(device_t dev, int order, const char *name, int unit)
465 struct firewire_softc *sc;
467 sc = (struct firewire_softc *)device_get_softc(dev);
468 child = device_add_child(dev, name, unit);
470 device_set_ivars(child, sc->fc);
471 device_probe_and_attach(child);
478 firewire_resume(device_t dev)
480 struct firewire_softc *sc;
482 sc = (struct firewire_softc *)device_get_softc(dev);
483 sc->fc->status = FWBUSNOTREADY;
485 bus_generic_resume(dev);
494 firewire_detach(device_t dev)
496 struct firewire_softc *sc;
497 struct firewire_comm *fc;
498 struct fw_device *fwdev, *fwdev_next;
501 sc = (struct firewire_softc *)device_get_softc(dev);
503 mtx_lock(&fc->wait_lock);
504 fc->status = FWBUSDETACH;
506 if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60))
507 printf("firewire probe thread didn't die\n");
508 mtx_unlock(&fc->wait_lock);
510 if ((err = fwdev_destroydev(sc)) != 0)
513 if ((err = bus_generic_detach(dev)) != 0)
516 callout_stop(&fc->timeout_callout);
517 callout_stop(&fc->bmr_callout);
518 callout_stop(&fc->busprobe_callout);
520 /* XXX xfree_free and untimeout on all xfers */
521 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL;
522 fwdev = fwdev_next) {
523 fwdev_next = STAILQ_NEXT(fwdev, link);
526 free(fc->topology_map, M_FW);
527 free(fc->speed_map, M_FW);
528 free(fc->crom_src_buf, M_FW);
530 mtx_destroy(&fc->wait_lock);
535 firewire_shutdown( device_t dev )
543 fw_xferq_drain(struct fw_xferq *xferq)
545 struct fw_xfer *xfer;
547 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
548 STAILQ_REMOVE_HEAD(&xferq->q, link);
553 xfer->flag = FWXF_SENTERR;
559 fw_drain_txq(struct firewire_comm *fc)
561 struct fw_xfer *xfer, *txfer;
562 STAILQ_HEAD(, fw_xfer) xfer_drain;
565 STAILQ_INIT(&xfer_drain);
568 fw_xferq_drain(fc->atq);
569 fw_xferq_drain(fc->ats);
570 for(i = 0; i < fc->nisodma; i++)
571 fw_xferq_drain(fc->it[i]);
573 for (i = 0; i < 0x40; i ++)
574 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
576 printf("tl=%d flag=%d\n", i, xfer->flag);
578 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel);
579 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel);
583 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer)
588 fw_reset_csr(struct firewire_comm *fc)
592 CSRARC(fc, STATE_CLEAR)
593 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
594 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
595 CSRARC(fc, NODE_IDS) = 0x3f;
597 CSRARC(fc, TOPO_MAP + 8) = 0;
602 for(i = 2; i < 0x100/4 - 2 ; i++){
603 CSRARC(fc, SPED_MAP + i * 4) = 0;
605 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
606 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
607 CSRARC(fc, RESET_START) = 0;
608 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
609 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
610 CSRARC(fc, CYCLE_TIME) = 0x0;
611 CSRARC(fc, BUS_TIME) = 0x0;
612 CSRARC(fc, BUS_MGR_ID) = 0x3f;
613 CSRARC(fc, BANDWIDTH_AV) = 4915;
614 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
615 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
616 CSRARC(fc, IP_CHANNELS) = (1 << 31);
618 CSRARC(fc, CONF_ROM) = 0x04 << 24;
619 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
620 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
621 1 << 28 | 0xff << 16 | 0x09 << 8;
622 CSRARC(fc, CONF_ROM + 0xc) = 0;
624 /* DV depend CSRs see blue book */
625 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
626 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
628 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
629 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
633 fw_init_crom(struct firewire_comm *fc)
635 struct crom_src *src;
637 fc->crom_src_buf = (struct crom_src_buf *)
638 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO);
639 if (fc->crom_src_buf == NULL)
642 src = &fc->crom_src_buf->src;
643 bzero(src, sizeof(struct crom_src));
645 /* BUS info sample */
646 src->hdr.info_len = 4;
648 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
650 src->businfo.irmc = 1;
651 src->businfo.cmc = 1;
652 src->businfo.isc = 1;
653 src->businfo.bmc = 1;
654 src->businfo.pmc = 0;
655 src->businfo.cyc_clk_acc = 100;
656 src->businfo.max_rec = fc->maxrec;
657 src->businfo.max_rom = MAXROM_4;
658 src->businfo.generation = 1;
659 src->businfo.link_spd = fc->speed;
661 src->businfo.eui64.hi = fc->eui.hi;
662 src->businfo.eui64.lo = fc->eui.lo;
664 STAILQ_INIT(&src->chunk_list);
667 fc->crom_root = &fc->crom_src_buf->root;
671 fw_reset_crom(struct firewire_comm *fc)
673 struct crom_src_buf *buf;
674 struct crom_src *src;
675 struct crom_chunk *root;
677 if (fc->crom_src_buf == NULL)
680 buf = fc->crom_src_buf;
682 root = fc->crom_root;
684 STAILQ_INIT(&src->chunk_list);
686 bzero(root, sizeof(struct crom_chunk));
687 crom_add_chunk(src, NULL, root, 0);
688 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
689 /* private company_id */
690 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
692 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project");
693 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version);
695 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project");
696 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version);
698 crom_add_simple_text(src, root, &buf->hw, hostname);
702 * Called after bus reset.
705 fw_busreset(struct firewire_comm *fc, uint32_t new_status)
707 struct firewire_dev_comm *fdc;
708 struct crom_src *src;
715 callout_stop(&fc->bmr_callout);
720 fc->status = new_status;
724 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) {
725 for( i = 0 ; i < devcnt ; i++)
726 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
727 fdc = device_get_softc(devlistp[i]);
728 if (fdc->post_busreset != NULL)
729 fdc->post_busreset(fdc);
731 free(devlistp, M_TEMP);
734 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO);
735 src = &fc->crom_src_buf->src;
736 crom_load(src, (uint32_t *)newrom, CROMSIZE);
737 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
738 /* bump generation and reload */
739 src->businfo.generation ++;
740 /* generation must be between 0x2 and 0xF */
741 if (src->businfo.generation < 2)
742 src->businfo.generation ++;
743 crom_load(src, (uint32_t *)newrom, CROMSIZE);
744 bcopy(newrom, (void *)fc->config_rom, CROMSIZE);
749 /* Call once after reboot */
750 void fw_init(struct firewire_comm *fc)
754 struct fw_xfer *xfer;
773 STAILQ_INIT(&fc->atq->q);
774 STAILQ_INIT(&fc->ats->q);
776 for( i = 0 ; i < fc->nisodma ; i ++ ){
777 fc->it[i]->queued = 0;
778 fc->ir[i]->queued = 0;
780 fc->it[i]->start = NULL;
781 fc->ir[i]->start = NULL;
783 fc->it[i]->buf = NULL;
784 fc->ir[i]->buf = NULL;
786 fc->it[i]->flag = FWXFERQ_STREAM;
787 fc->ir[i]->flag = FWXFERQ_STREAM;
789 STAILQ_INIT(&fc->it[i]->q);
790 STAILQ_INIT(&fc->ir[i]->q);
793 fc->arq->maxq = FWMAXQUEUE;
794 fc->ars->maxq = FWMAXQUEUE;
795 fc->atq->maxq = FWMAXQUEUE;
796 fc->ats->maxq = FWMAXQUEUE;
798 for( i = 0 ; i < fc->nisodma ; i++){
799 fc->ir[i]->maxq = FWMAXQUEUE;
800 fc->it[i]->maxq = FWMAXQUEUE;
802 /* Initialize csr registers */
803 fc->topology_map = (struct fw_topology_map *)malloc(
804 sizeof(struct fw_topology_map),
805 M_FW, M_NOWAIT | M_ZERO);
806 fc->speed_map = (struct fw_speed_map *)malloc(
807 sizeof(struct fw_speed_map),
808 M_FW, M_NOWAIT | M_ZERO);
809 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
810 CSRARC(fc, TOPO_MAP + 4) = 1;
811 CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
812 CSRARC(fc, SPED_MAP + 4) = 1;
814 STAILQ_INIT(&fc->devices);
816 /* Initialize Async handlers */
817 STAILQ_INIT(&fc->binds);
818 for( i = 0 ; i < 0x40 ; i++){
819 STAILQ_INIT(&fc->tlabels[i]);
822 /* DV depend CSRs see blue book */
824 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
825 CSRARC(fc, oPCR) = 0x8000007a;
826 for(i = 4 ; i < 0x7c/4 ; i+=4){
827 CSRARC(fc, i + oPCR) = 0x8000007a;
830 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
831 CSRARC(fc, iPCR) = 0x803f0000;
832 for(i = 4 ; i < 0x7c/4 ; i+=4){
833 CSRARC(fc, i + iPCR) = 0x0;
837 fc->crom_src_buf = NULL;
840 xfer = fw_xfer_alloc();
841 if(xfer == NULL) return;
843 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT);
848 xfer->hand = fw_vmaccess;
854 fwb->addrlen = 0xffffffff;
860 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\
861 ((fwb)->end < (addr))?1:0)
864 * To lookup bound process from IEEE1394 address.
867 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo)
870 struct fw_bind *tfw, *r = NULL;
872 addr = ((u_int64_t)dest_hi << 32) | dest_lo;
874 STAILQ_FOREACH(tfw, &fc->binds, fclist)
875 if (BIND_CMP(addr, tfw) == 0) {
884 * To bind IEEE1394 address block to process.
887 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
889 struct fw_bind *tfw, *prev = NULL;
892 if (fwb->start > fwb->end) {
893 printf("%s: invalid range\n", __func__);
898 STAILQ_FOREACH(tfw, &fc->binds, fclist) {
899 if (fwb->end < tfw->start)
904 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
905 else if (prev->end < fwb->start)
906 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist);
908 printf("%s: bind failed\n", __func__);
916 * To free IEEE1394 address block.
919 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
922 struct fw_xfer *xfer, *next;
929 STAILQ_FOREACH(tfw, &fc->binds, fclist)
931 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
935 printf("%s: no such binding\n", __func__);
941 /* shall we do this? */
942 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
943 next = STAILQ_NEXT(xfer, link);
946 STAILQ_INIT(&fwb->xferlist);
955 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type,
956 int slen, int rlen, int n,
957 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *))
960 struct fw_xfer *xfer;
962 for (i = 0; i < n; i++) {
963 xfer = fw_xfer_alloc_buf(type, slen, rlen);
970 STAILQ_INSERT_TAIL(q, xfer, link);
977 fw_xferlist_remove(struct fw_xferlist *q)
979 struct fw_xfer *xfer, *next;
981 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) {
982 next = STAILQ_NEXT(xfer, link);
983 fw_xfer_free_buf(xfer);
991 fw_dump_hdr(struct fw_pkt *fp, char *prefix)
993 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x "
994 "src=0x%03x\n", prefix,
995 fp->mode.hdr.dst & 0x3f,
996 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3,
997 fp->mode.hdr.tcode, fp->mode.hdr.pri,
1002 * To free transaction label.
1005 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
1007 struct fw_xfer *txfer;
1015 #if 1 /* make sure the label is allocated */
1016 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel)
1019 if (txfer == NULL) {
1020 printf("%s: the xfer is not in the queue "
1021 "(tlabel=%d, flag=0x%x)\n",
1022 __FUNCTION__, xfer->tl, xfer->flag);
1023 fw_dump_hdr(&xfer->send.hdr, "send");
1024 fw_dump_hdr(&xfer->recv.hdr, "recv");
1032 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel);
1039 * To obtain XFER structure by transaction label.
1041 static struct fw_xfer *
1042 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode)
1044 struct fw_xfer *xfer;
1049 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel)
1050 if(xfer->send.hdr.mode.hdr.dst == node) {
1053 KASSERT(xfer->tl == tlabel,
1054 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel));
1055 /* extra sanity check */
1056 req = xfer->send.hdr.mode.hdr.tcode;
1057 if (xfer->fc->tcode[req].valid_res != tcode) {
1058 printf("%s: invalid response tcode "
1059 "(0x%x for 0x%x)\n", __FUNCTION__,
1064 if (firewire_debug > 2)
1065 printf("fw_tl2xfer: found tl=%d\n", tlabel);
1069 if (firewire_debug > 1)
1070 printf("fw_tl2xfer: not found tl=%d\n", tlabel);
1076 * To allocate IEEE1394 XFER structure.
1079 fw_xfer_alloc(struct malloc_type *type)
1081 struct fw_xfer *xfer;
1083 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
1087 xfer->malloc = type;
1093 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
1095 struct fw_xfer *xfer;
1097 xfer = fw_xfer_alloc(type);
1100 xfer->send.pay_len = send_len;
1101 xfer->recv.pay_len = recv_len;
1103 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO);
1104 if (xfer->send.payload == NULL) {
1110 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT);
1111 if (xfer->recv.payload == NULL) {
1112 if (xfer->send.payload != NULL)
1113 free(xfer->send.payload, type);
1122 * IEEE1394 XFER post process.
1125 fw_xfer_done(struct fw_xfer *xfer)
1127 if (xfer->hand == NULL) {
1128 printf("hand == NULL\n");
1132 if (xfer->fc == NULL)
1133 panic("fw_xfer_done: why xfer->fc is NULL?");
1135 fw_tl_free(xfer->fc, xfer);
1140 fw_xfer_unload(struct fw_xfer* xfer)
1144 if(xfer == NULL ) return;
1145 if(xfer->flag & FWXF_INQ){
1146 printf("fw_xfer_free FWXF_INQ\n");
1149 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
1153 FW_GUNLOCK(xfer->fc);
1156 if (xfer->fc != NULL) {
1158 if(xfer->flag & FWXF_START)
1160 * This could happen if:
1161 * 1. We call fwohci_arcv() before fwohci_txd().
1162 * 2. firewire_watch() is called.
1164 printf("fw_xfer_free FWXF_START\n");
1167 xfer->flag = FWXF_INIT;
1171 * To free IEEE1394 XFER structure.
1174 fw_xfer_free_buf( struct fw_xfer* xfer)
1177 printf("%s: xfer == NULL\n", __func__);
1180 fw_xfer_unload(xfer);
1181 if(xfer->send.payload != NULL){
1182 free(xfer->send.payload, xfer->malloc);
1184 if(xfer->recv.payload != NULL){
1185 free(xfer->recv.payload, xfer->malloc);
1187 free(xfer, xfer->malloc);
1191 fw_xfer_free( struct fw_xfer* xfer)
1194 printf("%s: xfer == NULL\n", __func__);
1197 fw_xfer_unload(xfer);
1198 free(xfer, xfer->malloc);
1202 fw_asy_callback_free(struct fw_xfer *xfer)
1205 printf("asyreq done flag=0x%02x resp=%d\n",
1206 xfer->flag, xfer->resp);
1215 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
1217 struct fw_xfer *xfer;
1220 fc->status = FWBUSPHYCONF;
1222 xfer = fw_xfer_alloc(M_FWXFER);
1226 xfer->hand = fw_asy_callback_free;
1228 fp = &xfer->send.hdr;
1231 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23;
1233 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16;
1234 fp->mode.ld[2] = ~fp->mode.ld[1];
1235 /* XXX Dangerous, how to pass PHY packet to device driver */
1236 fp->mode.common.tcode |= FWTCODE_PHY;
1239 printf("send phy_config root_node=%d gap_count=%d\n",
1240 root_node, gap_count);
1241 fw_asyreq(fc, -1, xfer);
1249 fw_print_sid(uint32_t sid)
1251 union fw_self_id *s;
1252 s = (union fw_self_id *) &sid;
1253 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
1254 " p0:%d p1:%d p2:%d i:%d m:%d\n",
1255 s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
1256 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
1257 s->p0.power_class, s->p0.port0, s->p0.port1,
1258 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
1263 * To receive self ID.
1265 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len)
1268 union fw_self_id *self_id;
1269 u_int i, j, node, c_port = 0, i_branch = 0;
1271 fc->sid_cnt = len /(sizeof(uint32_t) * 2);
1272 fc->max_node = fc->nodeid & 0x3f;
1273 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16;
1274 fc->status = FWBUSCYMELECT;
1275 fc->topology_map->crc_len = 2;
1276 fc->topology_map->generation ++;
1277 fc->topology_map->self_id_count = 0;
1278 fc->topology_map->node_count = 0;
1279 fc->speed_map->generation ++;
1280 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
1281 self_id = &fc->topology_map->self_id[0];
1282 for(i = 0; i < fc->sid_cnt; i ++){
1283 if (sid[1] != ~sid[0]) {
1284 printf("fw_sidrcv: invalid self-id packet\n");
1288 *self_id = *((union fw_self_id *)sid);
1289 fc->topology_map->crc_len++;
1290 if(self_id->p0.sequel == 0){
1291 fc->topology_map->node_count ++;
1294 fw_print_sid(sid[0]);
1296 node = self_id->p0.phy_id;
1297 if(fc->max_node < node){
1298 fc->max_node = self_id->p0.phy_id;
1300 /* XXX I'm not sure this is the right speed_map */
1301 fc->speed_map->speed[node][node]
1302 = self_id->p0.phy_speed;
1303 for (j = 0; j < node; j ++) {
1304 fc->speed_map->speed[j][node]
1305 = fc->speed_map->speed[node][j]
1306 = min(fc->speed_map->speed[j][j],
1307 self_id->p0.phy_speed);
1309 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
1310 (self_id->p0.link_active && self_id->p0.contender)) {
1311 fc->irm = self_id->p0.phy_id;
1313 if(self_id->p0.port0 >= 0x2){
1316 if(self_id->p0.port1 >= 0x2){
1319 if(self_id->p0.port2 >= 0x2){
1324 i_branch += (c_port - 2);
1328 fc->topology_map->self_id_count ++;
1330 device_printf(fc->bdev, "%d nodes", fc->max_node + 1);
1332 fc->topology_map->crc = fw_crc16(
1333 (uint32_t *)&fc->topology_map->generation,
1334 fc->topology_map->crc_len * 4);
1335 fc->speed_map->crc = fw_crc16(
1336 (uint32_t *)&fc->speed_map->generation,
1337 fc->speed_map->crc_len * 4);
1338 /* byteswap and copy to CSR */
1339 p = (uint32_t *)fc->topology_map;
1340 for (i = 0; i <= fc->topology_map->crc_len; i++)
1341 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
1342 p = (uint32_t *)fc->speed_map;
1343 CSRARC(fc, SPED_MAP) = htonl(*p++);
1344 CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
1345 /* don't byte-swap uint8_t array */
1346 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
1348 fc->max_hop = fc->max_node - i_branch;
1349 printf(", maxhop <= %d", fc->max_hop);
1352 printf(", Not found IRM capable node");
1354 printf(", cable IRM = %d", fc->irm);
1355 if (fc->irm == fc->nodeid)
1360 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
1361 if (fc->irm == fc->nodeid) {
1362 fc->status = FWBUSMGRDONE;
1363 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
1366 fc->status = FWBUSMGRELECT;
1367 callout_reset(&fc->bmr_callout, hz/8,
1368 (void *)fw_try_bmr, (void *)fc);
1371 fc->status = FWBUSMGRDONE;
1373 callout_reset(&fc->busprobe_callout, hz/4,
1374 (void *)fw_bus_probe, (void *)fc);
1378 * To probe devices on the IEEE1394 bus.
1381 fw_bus_probe(struct firewire_comm *fc)
1384 struct fw_device *fwdev;
1387 fc->status = FWBUSEXPLORE;
1389 /* Invalidate all devices, just after bus reset. */
1390 STAILQ_FOREACH(fwdev, &fc->devices, link)
1391 if (fwdev->status != FWDEVINVAL) {
1392 fwdev->status = FWDEVINVAL;
1401 fw_explore_read_quads(struct fw_device *fwdev, int offset,
1402 uint32_t *quad, int n)
1404 struct fw_xfer *xfer;
1408 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) {
1409 xfer = fwmem_read_quad(fwdev, NULL, -1,
1410 0xffff, 0xf0000000 | offset, (void *)&tmp,
1416 if (xfer->resp == 0)
1417 quad[i] = ntohl(tmp);
1429 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur)
1432 struct csrdirectory *dir;
1435 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)];
1436 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset,
1437 (uint32_t *)dir, 1);
1441 offset += sizeof(uint32_t);
1442 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)];
1443 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset,
1444 (uint32_t *)reg, dir->crc_len);
1450 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1);
1451 if (fwdev->rommax < off)
1452 fwdev->rommax = off;
1457 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) {
1458 if (reg[i].key == CROM_UDIR)
1460 else if (reg[i].key == CROM_TEXTLEAF)
1465 off = offset + reg[i].val * sizeof(uint32_t);
1466 if (off > CROMSIZE) {
1467 printf("%s: invalid offset %d\n", __FUNCTION__, off);
1470 err = fw_explore_csrblock(fwdev, off, recur);
1478 fw_explore_node(struct fw_device *dfwdev)
1480 struct firewire_comm *fc;
1481 struct fw_device *fwdev, *pfwdev, *tfwdev;
1484 struct bus_info *binfo;
1488 csr = dfwdev->csrrom;
1492 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1);
1495 hdr = (struct csrhdr *)&csr[0];
1496 if (hdr->info_len != 4) {
1498 printf("node%d: wrong bus info len(%d)\n",
1499 node, hdr->info_len);
1504 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4);
1507 binfo = (struct bus_info *)&csr[1];
1508 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) {
1510 printf("node%d: invalid bus name 0x%08x\n",
1511 node, binfo->bus_name);
1514 spd = fc->speed_map->speed[fc->nodeid][node];
1515 STAILQ_FOREACH(fwdev, &fc->devices, link)
1516 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64))
1518 if (fwdev == NULL) {
1520 fwdev = malloc(sizeof(struct fw_device), M_FW,
1522 if (fwdev == NULL) {
1524 printf("node%d: no memory\n", node);
1528 fwdev->eui = binfo->eui64;
1529 /* inesrt into sorted fwdev list */
1531 STAILQ_FOREACH(tfwdev, &fc->devices, link) {
1532 if (tfwdev->eui.hi > fwdev->eui.hi ||
1533 (tfwdev->eui.hi == fwdev->eui.hi &&
1534 tfwdev->eui.lo > fwdev->eui.lo))
1539 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
1541 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
1543 device_printf(fc->bdev, "New %s device ID:%08x%08x\n",
1545 fwdev->eui.hi, fwdev->eui.lo);
1548 fwdev->status = FWDEVINIT;
1552 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) {
1554 printf("node%d: crom unchanged\n", node);
1558 bzero(&fwdev->csrrom[0], CROMSIZE);
1560 /* copy first quad and bus info block */
1561 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5);
1562 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4;
1564 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */
1567 fwdev->status = FWDEVINVAL;
1568 fwdev->csrrom[0] = 0;
1575 * Find the self_id packet for a node, ignoring sequels.
1577 static union fw_self_id *
1578 fw_find_self_id(struct firewire_comm *fc, int node)
1581 union fw_self_id *s;
1583 for (i = 0; i < fc->topology_map->self_id_count; i++) {
1584 s = &fc->topology_map->self_id[i];
1587 if (s->p0.phy_id == node)
1594 fw_explore(struct firewire_comm *fc)
1596 int node, err, s, i, todo, todo2, trys;
1598 struct fw_device dfwdev;
1599 union fw_self_id *fwsid;
1602 /* setup dummy fwdev */
1605 dfwdev.maxrec = 8; /* 512 */
1606 dfwdev.status = FWDEVINIT;
1608 for (node = 0; node <= fc->max_node; node ++) {
1609 /* We don't probe myself and linkdown nodes */
1610 if (node == fc->nodeid)
1612 fwsid = fw_find_self_id(fc, node);
1613 if (!fwsid || !fwsid->p0.link_active) {
1615 printf("node%d: link down\n", node);
1618 nodes[todo++] = node;
1622 for (trys = 0; todo > 0 && trys < 3; trys ++) {
1624 for (i = 0; i < todo; i ++) {
1625 dfwdev.dst = nodes[i];
1626 err = fw_explore_node(&dfwdev);
1628 nodes[todo2++] = nodes[i];
1630 printf("%s: node %d, err = %d\n",
1631 __FUNCTION__, node, err);
1640 fw_bus_probe_thread(void *arg)
1642 struct firewire_comm *fc;
1644 fc = (struct firewire_comm *)arg;
1646 mtx_lock(&fc->wait_lock);
1647 while (fc->status != FWBUSDETACH) {
1648 if (fc->status == FWBUSEXPLORE) {
1649 mtx_unlock(&fc->wait_lock);
1651 fc->status = FWBUSEXPDONE;
1653 printf("bus_explore done\n");
1655 mtx_lock(&fc->wait_lock);
1657 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0);
1659 mtx_unlock(&fc->wait_lock);
1664 * To attach sub-devices layer onto IEEE1394 bus.
1667 fw_attach_dev(struct firewire_comm *fc)
1669 struct fw_device *fwdev, *next;
1673 struct firewire_dev_comm *fdc;
1675 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
1676 next = STAILQ_NEXT(fwdev, link);
1677 if (fwdev->status == FWDEVINIT) {
1678 fwdev->status = FWDEVATTACHED;
1679 } else if (fwdev->status == FWDEVINVAL) {
1681 if (fwdev->rcnt > hold_count) {
1683 * Remove devices which have not been seen
1686 STAILQ_REMOVE(&fc->devices, fwdev, fw_device,
1693 err = device_get_children(fc->bdev, &devlistp, &devcnt);
1696 for( i = 0 ; i < devcnt ; i++){
1697 if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
1698 fdc = device_get_softc(devlistp[i]);
1699 if (fdc->post_explore != NULL)
1700 fdc->post_explore(fdc);
1703 free(devlistp, M_TEMP);
1709 * To allocate unique transaction label.
1712 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
1715 struct fw_xfer *txfer;
1717 static uint32_t label = 0;
1721 for( i = 0 ; i < 0x40 ; i ++){
1722 label = (label + 1) & 0x3f;
1723 STAILQ_FOREACH(txfer, &fc->tlabels[label], tlabel)
1724 if (txfer->send.hdr.mode.hdr.dst ==
1725 xfer->send.hdr.mode.hdr.dst)
1729 xfer->send.hdr.mode.hdr.tlrt = label << 2;
1730 STAILQ_INSERT_TAIL(&fc->tlabels[label], xfer, tlabel);
1733 if (firewire_debug > 1)
1734 printf("fw_get_tlabel: dst=%d tl=%d\n",
1735 xfer->send.hdr.mode.hdr.dst, label);
1736 /* note: label may be incremanted after unlock */
1743 if (firewire_debug > 1)
1744 printf("fw_get_tlabel: no free tlabel\n");
1749 fw_rcv_copy(struct fw_rcv_buf *rb)
1753 struct tcode_info *tinfo;
1754 u_int res, i, len, plen;
1756 rb->xfer->recv.spd = rb->spd;
1758 pkt = (struct fw_pkt *)rb->vec->iov_base;
1759 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode];
1762 p = (u_char *)&rb->xfer->recv.hdr;
1763 bcopy(rb->vec->iov_base, p, tinfo->hdr_len);
1764 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len;
1765 rb->vec->iov_len -= tinfo->hdr_len;
1768 p = (u_char *)rb->xfer->recv.payload;
1769 res = rb->xfer->recv.pay_len;
1771 /* special handling for RRESQ */
1772 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ &&
1773 p != NULL && res >= sizeof(uint32_t)) {
1774 *(uint32_t *)p = pkt->mode.rresq.data;
1775 rb->xfer->recv.pay_len = sizeof(uint32_t);
1779 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0)
1782 plen = pkt->mode.rresb.len;
1784 for (i = 0; i < rb->nvec; i++, rb->vec++) {
1785 len = MIN(rb->vec->iov_len, plen);
1787 printf("rcv buffer(%d) is %d bytes short.\n",
1788 rb->xfer->recv.pay_len, len - res);
1791 bcopy(rb->vec->iov_base, p, len);
1795 if (res == 0 || plen == 0)
1798 rb->xfer->recv.pay_len -= res;
1803 * Generic packet receiving process.
1806 fw_rcv(struct fw_rcv_buf *rb)
1808 struct fw_pkt *fp, *resfp;
1809 struct fw_bind *bind;
1811 int i, len, oldstate;
1816 qld = (uint32_t *)buf;
1817 printf("spd %d len:%d\n", spd, len);
1818 for( i = 0 ; i <= len && i < 32; i+= 4){
1819 printf("0x%08x ", ntohl(qld[i/4]));
1820 if((i % 16) == 15) printf("\n");
1822 if((i % 16) != 15) printf("\n");
1825 fp = (struct fw_pkt *)rb->vec[0].iov_base;
1826 tcode = fp->mode.common.tcode;
1832 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1833 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode);
1834 if(rb->xfer == NULL) {
1835 printf("fw_rcv: unknown response "
1836 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n",
1837 tcode_str[tcode], tcode,
1839 fp->mode.hdr.tlrt >> 2,
1840 fp->mode.hdr.tlrt & 3,
1841 fp->mode.rresq.data);
1843 printf("try ad-hoc work around!!\n");
1844 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
1845 (fp->mode.hdr.tlrt >> 2)^3);
1846 if (rb->xfer == NULL) {
1847 printf("no use...\n");
1855 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP)
1856 rb->xfer->resp = EIO;
1859 /* make sure the packet is drained in AT queue */
1860 oldstate = rb->xfer->flag;
1861 rb->xfer->flag = FWXF_RCVD;
1864 fw_xfer_done(rb->xfer);
1869 printf("not sent yet tl=%x\n", rb->xfer->tl);
1873 printf("unexpected flag 0x%02x\n", rb->xfer->flag);
1881 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi,
1882 fp->mode.rreqq.dest_lo);
1884 printf("Unknown service addr 0x%04x:0x%08x %s(%x)"
1885 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1886 " src=0x%x data=%lx\n",
1888 " src=0x%x data=%x\n",
1890 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo,
1891 tcode_str[tcode], tcode,
1892 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data));
1893 if (rb->fc->status == FWBUSINIT) {
1894 printf("fw_rcv: cannot respond(bus reset)!\n");
1897 rb->xfer = fw_xfer_alloc(M_FWXFER);
1898 if(rb->xfer == NULL){
1901 rb->xfer->send.spd = rb->spd;
1902 rb->xfer->send.pay_len = 0;
1903 resfp = &rb->xfer->send.hdr;
1907 resfp->mode.hdr.tcode = FWTCODE_WRES;
1910 resfp->mode.hdr.tcode = FWTCODE_RRESQ;
1913 resfp->mode.hdr.tcode = FWTCODE_RRESB;
1916 resfp->mode.hdr.tcode = FWTCODE_LRES;
1919 resfp->mode.hdr.dst = fp->mode.hdr.src;
1920 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
1921 resfp->mode.hdr.pri = fp->mode.hdr.pri;
1922 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR;
1923 resfp->mode.rresb.extcode = 0;
1924 resfp->mode.rresb.len = 0;
1926 rb->xfer->hand = fw_xferwake;
1928 rb->xfer->hand = fw_xfer_free;
1929 if(fw_asyreq(rb->fc, -1, rb->xfer)){
1930 fw_xfer_free(rb->xfer);
1936 for (i = 0; i < rb->nvec; i ++)
1937 len += rb->vec[i].iov_len;
1938 rb->xfer = STAILQ_FIRST(&bind->xferlist);
1939 if (rb->xfer == NULL) {
1941 printf("Discard a packet for this bind.\n");
1945 STAILQ_REMOVE_HEAD(&bind->xferlist, link);
1947 rb->xfer->hand(rb->xfer);
1949 #if 0 /* shouldn't happen ?? or for GASP */
1950 case FWTCODE_STREAM:
1952 struct fw_xferq *xferq;
1954 xferq = rb->fc->ir[sub];
1956 printf("stream rcv dma %d len %d off %d spd %d\n",
1957 sub, len, off, spd);
1959 if(xferq->queued >= xferq->maxq) {
1960 printf("receive queue is full\n");
1963 /* XXX get xfer from xfer queue, we don't need copy for
1965 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
1967 if (rb->xfer == NULL)
1972 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link);
1974 sc = device_get_softc(rb->fc->bdev);
1975 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1976 if (&xferq->rsel.si_pid != 0)
1978 if (SEL_WAITING(&xferq->rsel))
1980 selwakeuppri(&xferq->rsel, FWPRI);
1981 if (xferq->flag & FWXFERQ_WAKEUP) {
1982 xferq->flag &= ~FWXFERQ_WAKEUP;
1983 wakeup((caddr_t)xferq);
1985 if (xferq->flag & FWXFERQ_HANDLER) {
1993 printf("fw_rcv: unknow tcode %d\n", tcode);
1999 * Post process for Bus Manager election process.
2002 fw_try_bmr_callback(struct fw_xfer *xfer)
2004 struct firewire_comm *fc;
2010 if (xfer->resp != 0)
2012 if (xfer->recv.payload == NULL)
2014 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE)
2017 bmr = ntohl(xfer->recv.payload[0]);
2021 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
2022 fw_xfer_free_buf(xfer);
2027 device_printf(fc->bdev, "bus manager election failed\n");
2028 fw_xfer_free_buf(xfer);
2033 * To candidate Bus Manager election process.
2036 fw_try_bmr(void *arg)
2038 struct fw_xfer *xfer;
2039 struct firewire_comm *fc = (struct firewire_comm *)arg;
2043 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4);
2048 fc->status = FWBUSMGRELECT;
2050 fp = &xfer->send.hdr;
2051 fp->mode.lreq.dest_hi = 0xffff;
2052 fp->mode.lreq.tlrt = 0;
2053 fp->mode.lreq.tcode = FWTCODE_LREQ;
2054 fp->mode.lreq.pri = 0;
2055 fp->mode.lreq.src = 0;
2056 fp->mode.lreq.len = 8;
2057 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP;
2058 fp->mode.lreq.dst = FWLOCALBUS | fc->irm;
2059 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
2060 xfer->send.payload[0] = htonl(0x3f);
2061 xfer->send.payload[1] = htonl(fc->nodeid);
2062 xfer->hand = fw_try_bmr_callback;
2064 err = fw_asyreq(fc, -1, xfer);
2066 fw_xfer_free_buf(xfer);
2074 * Software implementation for physical memory block access.
2075 * XXX:Too slow, usef for debug purpose only.
2078 fw_vmaccess(struct fw_xfer *xfer){
2079 struct fw_pkt *rfp, *sfp = NULL;
2080 uint32_t *ld = (uint32_t *)xfer->recv.buf;
2082 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
2083 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
2084 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
2085 if(xfer->resp != 0){
2086 fw_xfer_free( xfer);
2089 if(xfer->recv.buf == NULL){
2090 fw_xfer_free( xfer);
2093 rfp = (struct fw_pkt *)xfer->recv.buf;
2094 switch(rfp->mode.hdr.tcode){
2095 /* XXX need fix for 64bit arch */
2097 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2098 xfer->send.len = 12;
2099 sfp = (struct fw_pkt *)xfer->send.buf;
2100 bcopy(rfp->mode.wreqb.payload,
2101 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
2102 sfp->mode.wres.tcode = FWTCODE_WRES;
2103 sfp->mode.wres.rtcode = 0;
2106 xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
2107 xfer->send.len = 12;
2108 sfp->mode.wres.tcode = FWTCODE_WRES;
2109 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
2110 sfp->mode.wres.rtcode = 0;
2113 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT);
2114 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
2115 sfp = (struct fw_pkt *)xfer->send.buf;
2116 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
2117 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len));
2118 sfp->mode.rresb.tcode = FWTCODE_RRESB;
2119 sfp->mode.rresb.len = rfp->mode.rreqb.len;
2120 sfp->mode.rresb.rtcode = 0;
2121 sfp->mode.rresb.extcode = 0;
2124 xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
2125 xfer->send.len = 16;
2126 sfp = (struct fw_pkt *)xfer->send.buf;
2127 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
2128 sfp->mode.wres.tcode = FWTCODE_RRESQ;
2129 sfp->mode.rresb.rtcode = 0;
2132 fw_xfer_free( xfer);
2135 sfp->mode.hdr.dst = rfp->mode.hdr.src;
2136 xfer->dst = ntohs(rfp->mode.hdr.src);
2137 xfer->hand = fw_xfer_free;
2139 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
2140 sfp->mode.hdr.pri = 0;
2142 fw_asyreq(xfer->fc, -1, xfer);
2149 * CRC16 check-sum for IEEE1394 register blocks.
2152 fw_crc16(uint32_t *ptr, uint32_t len){
2153 uint32_t i, sum, crc = 0;
2155 len = (len + 3) & ~3;
2156 for(i = 0 ; i < len ; i+= 4){
2157 for( shift = 28 ; shift >= 0 ; shift -= 4){
2158 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
2159 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
2163 return((uint16_t) crc);
2167 fw_bmr(struct firewire_comm *fc)
2169 struct fw_device fwdev;
2170 union fw_self_id *self_id;
2174 /* Check to see if the current root node is cycle master capable */
2175 self_id = fw_find_self_id(fc, fc->max_node);
2176 if (fc->max_node > 0) {
2177 /* XXX check cmc bit of businfo block rather than contender */
2178 if (self_id->p0.link_active && self_id->p0.contender)
2179 cmstr = fc->max_node;
2181 device_printf(fc->bdev,
2182 "root node is not cycle master capable\n");
2183 /* XXX shall we be the cycle master? */
2185 /* XXX need bus reset */
2190 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID));
2191 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
2192 /* We are not the bus manager */
2198 /* Optimize gapcount */
2199 if(fc->max_hop <= MAX_GAPHOP )
2200 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
2201 /* If we are the cycle master, nothing to do */
2202 if (cmstr == fc->nodeid || cmstr == -1)
2204 /* Bus probe has not finished, make dummy fwdev for cmstr */
2205 bzero(&fwdev, sizeof(fwdev));
2209 fwdev.maxrec = 8; /* 512 */
2210 fwdev.status = FWDEVINIT;
2211 /* Set cmstr bit on the cycle master */
2212 quad = htonl(1 << 8);
2213 fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
2214 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free);
2220 fw_open_isodma(struct firewire_comm *fc, int tx)
2222 struct fw_xferq **xferqa;
2223 struct fw_xferq *xferq;
2227 xferqa = &fc->it[0];
2229 xferqa = &fc->ir[0];
2232 for (i = 0; i < fc->nisodma; i ++) {
2234 if ((xferq->flag & FWXFERQ_OPEN) == 0) {
2235 xferq->flag |= FWXFERQ_OPEN;
2239 if (i == fc->nisodma) {
2240 printf("no free dma channel (tx=%d)\n", tx);
2248 fw_modevent(module_t mode, int type, void *data)
2251 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2252 static eventhandler_tag fwdev_ehtag = NULL;
2257 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2258 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone,
2259 fwdev_clone, 0, 1000);
2263 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2264 if (fwdev_ehtag != NULL)
2265 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag);
2271 return (EOPNOTSUPP);
2277 #ifdef __DragonFly__
2278 DECLARE_DUMMY_MODULE(firewire);
2280 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0);
2281 MODULE_VERSION(firewire, 1);