/* * Copyright (c) 2003 Hidetoshi Shimokawa * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the acknowledgement as bellow: * * This product includes software developed by K. Kobayashi and H. Shimokawa * * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ * */ #include #include #include #include #include #include #include #include #include #include #include /* for rdtsc proto for clock.h below */ #include #include /* used by smbus and newbus */ #include #include #include #include #include #include struct crom_src_buf { struct crom_src src; struct crom_chunk root; struct crom_chunk vendor; struct crom_chunk hw; }; int firewire_debug=0, try_bmr=1; SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, "FireWire driver debug flag"); SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, "Try to be a bus manager"); MALLOC_DEFINE(M_FW, "firewire", "FireWire"); MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); #define FW_MAXASYRTY 4 #define FW_MAXDEVRCNT 4 devclass_t firewire_devclass; static int firewire_match __P((device_t)); static int firewire_attach __P((device_t)); static int firewire_detach __P((device_t)); #if 0 static int firewire_shutdown __P((device_t)); #endif static device_t firewire_add_child __P((device_t, int, const char *, int)); static void fw_try_bmr __P((void *)); static void fw_try_bmr_callback __P((struct fw_xfer *)); static void fw_asystart __P((struct fw_xfer *)); static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); static void fw_bus_probe __P((struct firewire_comm *)); static void fw_bus_explore __P((struct firewire_comm *)); static void fw_bus_explore_callback __P((struct fw_xfer *)); static void fw_attach_dev __P((struct firewire_comm *)); #ifdef FW_VMACCESS static void fw_vmaccess __P((struct fw_xfer *)); #endif struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); static int fw_bmr __P((struct firewire_comm *)); static device_method_t firewire_methods[] = { /* Device interface */ DEVMETHOD(device_probe, firewire_match), DEVMETHOD(device_attach, firewire_attach), DEVMETHOD(device_detach, firewire_detach), DEVMETHOD(device_suspend, bus_generic_suspend), DEVMETHOD(device_resume, bus_generic_resume), DEVMETHOD(device_shutdown, bus_generic_shutdown), /* Bus interface */ DEVMETHOD(bus_add_child, firewire_add_child), DEVMETHOD(bus_print_child, bus_generic_print_child), { 0, 0 } }; char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; /* IEEE-1394a Table C-2 Gap count as a function of hops*/ #define MAX_GAPHOP 15 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 21, 24, 26, 29, 32, 35, 37, 40}; extern struct cdevsw firewire_cdevsw; static driver_t firewire_driver = { "firewire", firewire_methods, sizeof(struct firewire_softc), }; /* * Lookup fwdev by node id. */ struct fw_device * fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) { struct fw_device *fwdev; int s; s = splfw(); STAILQ_FOREACH(fwdev, &fc->devices, link) if (fwdev->dst == dst) break; splx(s); if(fwdev == NULL) return NULL; if(fwdev->status == FWDEVINVAL) return NULL; return fwdev; } /* * Lookup fwdev by EUI64. */ struct fw_device * fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) { struct fw_device *fwdev; int s; s = splfw(); STAILQ_FOREACH(fwdev, &fc->devices, link) if (FW_EUI64_EQUAL(fwdev->eui, *eui)) break; splx(s); if(fwdev == NULL) return NULL; if(fwdev->status == FWDEVINVAL) return NULL; return fwdev; } /* * Async. request procedure for userland application. */ int fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) { int err = 0; struct fw_xferq *xferq; int tl = 0, len; struct fw_pkt *fp; int tcode; struct tcode_info *info; if(xfer == NULL) return EINVAL; if(xfer->send.len > MAXREC(fc->maxrec)){ printf("send.len > maxrec\n"); return EINVAL; } if(xfer->act.hand == NULL){ printf("act.hand == NULL\n"); return EINVAL; } fp = (struct fw_pkt *)xfer->send.buf; tcode = fp->mode.common.tcode & 0xf; info = &fc->tcode[tcode]; if (info->flag == 0) { printf("invalid tcode=%d\n", tcode); return EINVAL; } if (info->flag & FWTI_REQ) xferq = fc->atq; else xferq = fc->ats; len = info->hdr_len; if (info->flag & FWTI_BLOCK_STR) len += fp->mode.stream.len; else if (info->flag & FWTI_BLOCK_ASY) len += fp->mode.rresb.len; if( len > xfer->send.len ){ printf("len(%d) > send.len(%d) (tcode=%d)\n", len, xfer->send.len, tcode); return EINVAL; } xfer->send.len = len; if(xferq->start == NULL){ printf("xferq->start == NULL\n"); return EINVAL; } if(!(xferq->queued < xferq->maxq)){ device_printf(fc->bdev, "Discard a packet (queued=%d)\n", xferq->queued); return EINVAL; } if (info->flag & FWTI_TLABEL) { if((tl = fw_get_tlabel(fc, xfer)) == -1 ) return EIO; fp->mode.hdr.tlrt = tl << 2; } xfer->tl = tl; xfer->resp = 0; xfer->fc = fc; xfer->q = xferq; xfer->retry_req = fw_asybusy; fw_asystart(xfer); return err; } /* * Wakeup blocked process. */ void fw_asy_callback(struct fw_xfer *xfer){ wakeup(xfer); return; } /* * Postpone to later retry. */ void fw_asybusy(struct fw_xfer *xfer){ printf("fw_asybusy\n"); /* xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); */ DELAY(20000); fw_asystart(xfer); return; } /* * Async. request with given xfer structure. */ static void fw_asystart(struct fw_xfer *xfer) { struct firewire_comm *fc = xfer->fc; int s; if(xfer->retry++ >= fc->max_asyretry){ device_printf(fc->bdev, "max_asyretry exceeded\n"); xfer->resp = EBUSY; xfer->state = FWXF_BUSY; xfer->act.hand(xfer); return; } #if 0 /* XXX allow bus explore packets only after bus rest */ if (fc->status < FWBUSEXPLORE) { xfer->resp = EAGAIN; xfer->state = FWXF_BUSY; if (xfer->act.hand != NULL) xfer->act.hand(xfer); return; } #endif s = splfw(); xfer->state = FWXF_INQ; STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); xfer->q->queued ++; splx(s); /* XXX just queue for mbuf */ if (xfer->mbuf == NULL) xfer->q->start(fc); return; } static int firewire_match( device_t dev ) { device_set_desc(dev, "IEEE1394(FireWire) bus"); return -140; } static void firewire_xfer_timeout(struct firewire_comm *fc) { struct fw_xfer *xfer; struct tlabel *tl; struct timeval tv; struct timeval split_timeout; int i, s; split_timeout.tv_sec = 6; split_timeout.tv_usec = 0; microtime(&tv); timevalsub(&tv, &split_timeout); s = splfw(); for (i = 0; i < 0x40; i ++) { while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { xfer = tl->xfer; if (timevalcmp(&xfer->tv, &tv, >)) /* the rests are newer than this */ break; device_printf(fc->bdev, "split transaction timeout dst=0x%x tl=0x%x\n", xfer->dst, i); xfer->resp = ETIMEDOUT; STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); fw_xfer_done(xfer); } } splx(s); } static void firewire_watchdog(void *arg) { struct firewire_comm *fc; fc = (struct firewire_comm *)arg; firewire_xfer_timeout(fc); fc->timeout(fc); callout_reset(&fc->timeout_callout, hz, (void *)firewire_watchdog, (void *)fc); } /* * The attach routine. */ static int firewire_attach( device_t dev ) { int i, unitmask, mn; struct firewire_softc *sc = device_get_softc(dev); device_t pa = device_get_parent(dev); struct firewire_comm *fc; dev_t d; fc = (struct firewire_comm *)device_get_softc(pa); sc->fc = fc; fc->status = -1; unitmask = UNIT2MIN(device_get_unit(dev)); if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; for ( i = 0 ; i < fc->nisodma ; i++ ){ mn = unitmask | i; /* XXX device name should be improved */ d = make_dev(&firewire_cdevsw, unit2minor(mn), UID_ROOT, GID_OPERATOR, 0660, "fw%x", mn); #if __FreeBSD_version >= 500000 if (i == 0) sc->dev = d; else dev_depends(sc->dev, d); #else sc->dev[i] = d; #endif } d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), UID_ROOT, GID_OPERATOR, 0660, "fwmem%d", device_get_unit(dev)); #if __FreeBSD_version >= 500000 dev_depends(sc->dev, d); #else sc->dev[i] = d; #endif CALLOUT_INIT(&sc->fc->timeout_callout); CALLOUT_INIT(&sc->fc->bmr_callout); CALLOUT_INIT(&sc->fc->retry_probe_callout); CALLOUT_INIT(&sc->fc->busprobe_callout); callout_reset(&sc->fc->timeout_callout, hz, (void *)firewire_watchdog, (void *)sc->fc); /* Locate our children */ bus_generic_probe(dev); /* launch attachement of the added children */ bus_generic_attach(dev); /* bus_reset */ fc->ibr(fc); return 0; } /* * Attach it as child. */ static device_t firewire_add_child(device_t dev, int order, const char *name, int unit) { device_t child; struct firewire_softc *sc; sc = (struct firewire_softc *)device_get_softc(dev); child = device_add_child(dev, name, unit); if (child) { device_set_ivars(child, sc->fc); device_probe_and_attach(child); } return child; } /* * Dettach it. */ static int firewire_detach( device_t dev ) { struct firewire_softc *sc; struct csrdir *csrd, *next; struct fw_device *fwdev, *fwdev_next; sc = (struct firewire_softc *)device_get_softc(dev); bus_generic_detach(dev); callout_stop(&sc->fc->timeout_callout); callout_stop(&sc->fc->bmr_callout); callout_stop(&sc->fc->retry_probe_callout); callout_stop(&sc->fc->busprobe_callout); #if __FreeBSD_version >= 500000 destroy_dev(sc->dev); #else { int j; for (j = 0 ; j < sc->fc->nisodma + 1; j++) destroy_dev(sc->dev[j]); } #endif /* XXX xfree_free and untimeout on all xfers */ for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; fwdev = fwdev_next) { fwdev_next = STAILQ_NEXT(fwdev, link); free(fwdev, M_FW); } for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { next = SLIST_NEXT(csrd, link); free(csrd, M_FW); } free(sc->fc->topology_map, M_FW); free(sc->fc->speed_map, M_FW); free(sc->fc->crom_src_buf, M_FW); return(0); } #if 0 static int firewire_shutdown( device_t dev ) { return 0; } #endif static void fw_xferq_drain(struct fw_xferq *xferq) { struct fw_xfer *xfer; while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { STAILQ_REMOVE_HEAD(&xferq->q, link); xferq->queued --; xfer->resp = EAGAIN; fw_xfer_done(xfer); } } void fw_drain_txq(struct firewire_comm *fc) { int i; fw_xferq_drain(fc->atq); fw_xferq_drain(fc->ats); for(i = 0; i < fc->nisodma; i++) fw_xferq_drain(fc->it[i]); } static void fw_reset_csr(struct firewire_comm *fc) { int i; CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); CSRARC(fc, NODE_IDS) = 0x3f; CSRARC(fc, TOPO_MAP + 8) = 0; fc->irm = -1; fc->max_node = -1; for(i = 2; i < 0x100/4 - 2 ; i++){ CSRARC(fc, SPED_MAP + i * 4) = 0; } CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); CSRARC(fc, RESET_START) = 0; CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; CSRARC(fc, CYCLE_TIME) = 0x0; CSRARC(fc, BUS_TIME) = 0x0; CSRARC(fc, BUS_MGR_ID) = 0x3f; CSRARC(fc, BANDWIDTH_AV) = 4915; CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; CSRARC(fc, IP_CHANNELS) = (1 << 31); CSRARC(fc, CONF_ROM) = 0x04 << 24; CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 1 << 28 | 0xff << 16 | 0x09 << 8; CSRARC(fc, CONF_ROM + 0xc) = 0; /* DV depend CSRs see blue book */ CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); } static void fw_init_crom(struct firewire_comm *fc) { struct crom_src *src; fc->crom_src_buf = (struct crom_src_buf *) malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); if (fc->crom_src_buf == NULL) return; src = &fc->crom_src_buf->src; bzero(src, sizeof(struct crom_src)); /* BUS info sample */ src->hdr.info_len = 4; src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; src->businfo.irmc = 1; src->businfo.cmc = 1; src->businfo.isc = 1; src->businfo.bmc = 1; src->businfo.pmc = 0; src->businfo.cyc_clk_acc = 100; src->businfo.max_rec = fc->maxrec; src->businfo.max_rom = MAXROM_4; src->businfo.generation = 0; src->businfo.link_spd = fc->speed; src->businfo.eui64.hi = fc->eui.hi; src->businfo.eui64.lo = fc->eui.lo; STAILQ_INIT(&src->chunk_list); fc->crom_src = src; fc->crom_root = &fc->crom_src_buf->root; } static void fw_reset_crom(struct firewire_comm *fc) { struct crom_src_buf *buf; struct crom_src *src; struct crom_chunk *root; if (fc->crom_src_buf == NULL) fw_init_crom(fc); buf = fc->crom_src_buf; src = fc->crom_src; root = fc->crom_root; src->businfo.generation ++; STAILQ_INIT(&src->chunk_list); bzero(root, sizeof(struct crom_chunk)); crom_add_chunk(src, NULL, root, 0); crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ /* private company_id */ crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); crom_add_simple_text(src, root, &buf->hw, hostname); } /* * Called after bus reset. */ void fw_busreset(struct firewire_comm *fc) { struct firewire_dev_comm *fdc; device_t *devlistp; int i, devcnt; switch(fc->status){ case FWBUSMGRELECT: callout_stop(&fc->bmr_callout); break; default: break; } fc->status = FWBUSRESET; fw_reset_csr(fc); fw_reset_crom(fc); if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { for( i = 0 ; i < devcnt ; i++) if (device_get_state(devlistp[i]) >= DS_ATTACHED) { fdc = device_get_softc(devlistp[i]); if (fdc->post_busreset != NULL) fdc->post_busreset(fdc); } free(devlistp, M_TEMP); } crom_load(&fc->crom_src_buf->src, fc->config_rom, CROMSIZE); } /* Call once after reboot */ void fw_init(struct firewire_comm *fc) { int i; struct csrdir *csrd; #ifdef FW_VMACCESS struct fw_xfer *xfer; struct fw_bind *fwb; #endif fc->max_asyretry = FW_MAXASYRTY; fc->arq->queued = 0; fc->ars->queued = 0; fc->atq->queued = 0; fc->ats->queued = 0; fc->arq->buf = NULL; fc->ars->buf = NULL; fc->atq->buf = NULL; fc->ats->buf = NULL; fc->arq->flag = 0; fc->ars->flag = 0; fc->atq->flag = 0; fc->ats->flag = 0; STAILQ_INIT(&fc->atq->q); STAILQ_INIT(&fc->ats->q); for( i = 0 ; i < fc->nisodma ; i ++ ){ fc->it[i]->queued = 0; fc->ir[i]->queued = 0; fc->it[i]->start = NULL; fc->ir[i]->start = NULL; fc->it[i]->buf = NULL; fc->ir[i]->buf = NULL; fc->it[i]->flag = FWXFERQ_STREAM; fc->ir[i]->flag = FWXFERQ_STREAM; STAILQ_INIT(&fc->it[i]->q); STAILQ_INIT(&fc->ir[i]->q); STAILQ_INIT(&fc->it[i]->binds); STAILQ_INIT(&fc->ir[i]->binds); } fc->arq->maxq = FWMAXQUEUE; fc->ars->maxq = FWMAXQUEUE; fc->atq->maxq = FWMAXQUEUE; fc->ats->maxq = FWMAXQUEUE; for( i = 0 ; i < fc->nisodma ; i++){ fc->ir[i]->maxq = FWMAXQUEUE; fc->it[i]->maxq = FWMAXQUEUE; } /* Initialize csr registers */ fc->topology_map = (struct fw_topology_map *)malloc( sizeof(struct fw_topology_map), M_FW, M_NOWAIT | M_ZERO); fc->speed_map = (struct fw_speed_map *)malloc( sizeof(struct fw_speed_map), M_FW, M_NOWAIT | M_ZERO); CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; CSRARC(fc, TOPO_MAP + 4) = 1; CSRARC(fc, SPED_MAP) = 0x3f1 << 16; CSRARC(fc, SPED_MAP + 4) = 1; STAILQ_INIT(&fc->devices); STAILQ_INIT(&fc->pending); /* Initialize csr ROM work space */ SLIST_INIT(&fc->ongocsr); SLIST_INIT(&fc->csrfree); for( i = 0 ; i < FWMAXCSRDIR ; i++){ csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); if(csrd == NULL) break; SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); } /* Initialize Async handlers */ STAILQ_INIT(&fc->binds); for( i = 0 ; i < 0x40 ; i++){ STAILQ_INIT(&fc->tlabels[i]); } /* DV depend CSRs see blue book */ #if 0 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ CSRARC(fc, oPCR) = 0x8000007a; for(i = 4 ; i < 0x7c/4 ; i+=4){ CSRARC(fc, i + oPCR) = 0x8000007a; } CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ CSRARC(fc, iPCR) = 0x803f0000; for(i = 4 ; i < 0x7c/4 ; i+=4){ CSRARC(fc, i + iPCR) = 0x0; } #endif fc->crom_src_buf = NULL; #ifdef FW_VMACCESS xfer = fw_xfer_alloc(); if(xfer == NULL) return; fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); if(fwb == NULL){ fw_xfer_free(xfer); } xfer->act.hand = fw_vmaccess; xfer->fc = fc; xfer->sc = NULL; fwb->start_hi = 0x2; fwb->start_lo = 0; fwb->addrlen = 0xffffffff; fwb->xfer = xfer; fw_bindadd(fc, fwb); #endif } /* * To lookup binded process from IEEE1394 address. */ struct fw_bind * fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) { struct fw_bind *tfw; for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; tfw = STAILQ_NEXT(tfw, fclist)){ if (tfw->act_type != FWACT_NULL && tfw->start_hi == dest_hi && tfw->start_lo <= dest_lo && (tfw->start_lo + tfw->addrlen) > dest_lo){ return(tfw); } } return(NULL); } /* * To bind IEEE1394 address block to process. */ int fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) { struct fw_bind *tfw, *tfw2 = NULL; int err = 0; tfw = STAILQ_FIRST(&fc->binds); if(tfw == NULL){ STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); goto out; } if((tfw->start_hi > fwb->start_hi) || (tfw->start_hi == fwb->start_hi && (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); goto out; } for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ if((tfw->start_hi < fwb->start_hi) || (tfw->start_hi == fwb->start_hi && (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ tfw2 = STAILQ_NEXT(tfw, fclist); if(tfw2 == NULL) break; if((tfw2->start_hi > fwb->start_hi) || (tfw2->start_hi == fwb->start_hi && tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ break; }else{ err = EBUSY; goto out; } } } if(tfw != NULL){ STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); }else{ STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); } out: if (!err && fwb->act_type == FWACT_CH) STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); return err; } /* * To free IEEE1394 address block. */ int fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) { int s; struct fw_xfer *xfer, *next; s = splfw(); /* shall we check the existance? */ STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); /* shall we do this? */ for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { next = STAILQ_NEXT(xfer, link); fw_xfer_free(xfer); } STAILQ_INIT(&fwb->xferlist); splx(s); return 0; } /* * To free transaction label. */ static void fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) { struct tlabel *tl; int s = splfw(); for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; tl = STAILQ_NEXT(tl, link)){ if(tl->xfer == xfer){ STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); free(tl, M_FW); splx(s); return; } } splx(s); return; } /* * To obtain XFER structure by transaction label. */ static struct fw_xfer * fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) { struct fw_xfer *xfer; struct tlabel *tl; int s = splfw(); for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; tl = STAILQ_NEXT(tl, link)){ if(tl->xfer->dst == node){ xfer = tl->xfer; splx(s); if (firewire_debug > 2) printf("fw_tl2xfer: found tl=%d\n", tlabel); return(xfer); } } if (firewire_debug > 1) printf("fw_tl2xfer: not found tl=%d\n", tlabel); splx(s); return(NULL); } /* * To allocate IEEE1394 XFER structure. */ struct fw_xfer * fw_xfer_alloc(struct malloc_type *type) { struct fw_xfer *xfer; xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); if (xfer == NULL) return xfer; microtime(&xfer->tv); xfer->malloc = type; return xfer; } struct fw_xfer * fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) { struct fw_xfer *xfer; xfer = fw_xfer_alloc(type); xfer->send.len = send_len; xfer->recv.len = recv_len; if (xfer == NULL) return(NULL); if (send_len) { xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO); if (xfer->send.buf == NULL) { fw_xfer_free(xfer); return(NULL); } } if (recv_len) { xfer->recv.buf = malloc(recv_len, type, M_NOWAIT); if (xfer->recv.buf == NULL) { if (xfer->send.buf != NULL) free(xfer->send.buf, type); fw_xfer_free(xfer); return(NULL); } } return(xfer); } /* * IEEE1394 XFER post process. */ void fw_xfer_done(struct fw_xfer *xfer) { if (xfer->act.hand == NULL) return; if (xfer->fc->status != FWBUSRESET) xfer->act.hand(xfer); else { printf("fw_xfer_done: pending\n"); if (xfer->fc != NULL) STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); else panic("fw_xfer_done: why xfer->fc is NULL?"); } } void fw_xfer_unload(struct fw_xfer* xfer) { int s; if(xfer == NULL ) return; if(xfer->state == FWXF_INQ){ printf("fw_xfer_free FWXF_INQ\n"); s = splfw(); STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); xfer->q->queued --; splx(s); } if (xfer->fc != NULL) { #if 1 if(xfer->state == FWXF_START) /* * This could happen if: * 1. We call fwohci_arcv() before fwohci_txd(). * 2. firewire_watch() is called. */ printf("fw_xfer_free FWXF_START\n"); #endif fw_tl_free(xfer->fc, xfer); } xfer->state = FWXF_INIT; xfer->resp = 0; xfer->retry = 0; } /* * To free IEEE1394 XFER structure. */ void fw_xfer_free( struct fw_xfer* xfer) { if(xfer == NULL ) return; fw_xfer_unload(xfer); if(xfer->send.buf != NULL){ free(xfer->send.buf, xfer->malloc); } if(xfer->recv.buf != NULL){ free(xfer->recv.buf, xfer->malloc); } free(xfer, xfer->malloc); } static void fw_asy_callback_free(struct fw_xfer *xfer) { #if 0 printf("asyreq done state=%d resp=%d\n", xfer->state, xfer->resp); #endif fw_xfer_free(xfer); } /* * To configure PHY. */ static void fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) { struct fw_xfer *xfer; struct fw_pkt *fp; fc->status = FWBUSPHYCONF; xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0); if (xfer == NULL) return; xfer->fc = fc; xfer->retry_req = fw_asybusy; xfer->act.hand = fw_asy_callback_free; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.ld[1] = 0; if (root_node >= 0) fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; if (gap_count >= 0) fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; fp->mode.ld[2] = ~fp->mode.ld[1]; /* XXX Dangerous, how to pass PHY packet to device driver */ fp->mode.common.tcode |= FWTCODE_PHY; if (firewire_debug) printf("send phy_config root_node=%d gap_count=%d\n", root_node, gap_count); fw_asyreq(fc, -1, xfer); } #if 0 /* * Dump self ID. */ static void fw_print_sid(u_int32_t sid) { union fw_self_id *s; s = (union fw_self_id *) &sid; printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" " p0:%d p1:%d p2:%d i:%d m:%d\n", s->p0.phy_id, s->p0.link_active, s->p0.gap_count, s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, s->p0.power_class, s->p0.port0, s->p0.port1, s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); } #endif /* * To receive self ID. */ void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) { u_int32_t *p; union fw_self_id *self_id; u_int i, j, node, c_port = 0, i_branch = 0; fc->sid_cnt = len /(sizeof(u_int32_t) * 2); fc->status = FWBUSINIT; fc->max_node = fc->nodeid & 0x3f; CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; fc->status = FWBUSCYMELECT; fc->topology_map->crc_len = 2; fc->topology_map->generation ++; fc->topology_map->self_id_count = 0; fc->topology_map->node_count = 0; fc->speed_map->generation ++; fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; self_id = &fc->topology_map->self_id[0]; for(i = 0; i < fc->sid_cnt; i ++){ if (sid[1] != ~sid[0]) { printf("fw_sidrcv: invalid self-id packet\n"); sid += 2; continue; } *self_id = *((union fw_self_id *)sid); fc->topology_map->crc_len++; if(self_id->p0.sequel == 0){ fc->topology_map->node_count ++; c_port = 0; #if 0 fw_print_sid(sid[0]); #endif node = self_id->p0.phy_id; if(fc->max_node < node){ fc->max_node = self_id->p0.phy_id; } /* XXX I'm not sure this is the right speed_map */ fc->speed_map->speed[node][node] = self_id->p0.phy_speed; for (j = 0; j < node; j ++) { fc->speed_map->speed[j][node] = fc->speed_map->speed[node][j] = min(fc->speed_map->speed[j][j], self_id->p0.phy_speed); } if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && (self_id->p0.link_active && self_id->p0.contender)) { fc->irm = self_id->p0.phy_id; } if(self_id->p0.port0 >= 0x2){ c_port++; } if(self_id->p0.port1 >= 0x2){ c_port++; } if(self_id->p0.port2 >= 0x2){ c_port++; } } if(c_port > 2){ i_branch += (c_port - 2); } sid += 2; self_id++; fc->topology_map->self_id_count ++; } device_printf(fc->bdev, "%d nodes", fc->max_node + 1); /* CRC */ fc->topology_map->crc = fw_crc16( (u_int32_t *)&fc->topology_map->generation, fc->topology_map->crc_len * 4); fc->speed_map->crc = fw_crc16( (u_int32_t *)&fc->speed_map->generation, fc->speed_map->crc_len * 4); /* byteswap and copy to CSR */ p = (u_int32_t *)fc->topology_map; for (i = 0; i <= fc->topology_map->crc_len; i++) CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); p = (u_int32_t *)fc->speed_map; CSRARC(fc, SPED_MAP) = htonl(*p++); CSRARC(fc, SPED_MAP + 4) = htonl(*p++); /* don't byte-swap u_int8_t array */ bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); fc->max_hop = fc->max_node - i_branch; printf(", maxhop <= %d", fc->max_hop); if(fc->irm == -1 ){ printf(", Not found IRM capable node"); }else{ printf(", cable IRM = %d", fc->irm); if (fc->irm == fc->nodeid) printf(" (me)"); } printf("\n"); if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { if (fc->irm == fc->nodeid) { fc->status = FWBUSMGRDONE; CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); fw_bmr(fc); } else { fc->status = FWBUSMGRELECT; callout_reset(&fc->bmr_callout, hz/8, (void *)fw_try_bmr, (void *)fc); } } else fc->status = FWBUSMGRDONE; callout_reset(&fc->busprobe_callout, hz/4, (void *)fw_bus_probe, (void *)fc); } /* * To probe devices on the IEEE1394 bus. */ static void fw_bus_probe(struct firewire_comm *fc) { int s; struct fw_device *fwdev, *next; s = splfw(); fc->status = FWBUSEXPLORE; fc->retry_count = 0; /* * Invalidate all devices, just after bus reset. Devices * to be removed has not been seen longer time. */ for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { next = STAILQ_NEXT(fwdev, link); if (fwdev->status != FWDEVINVAL) { fwdev->status = FWDEVINVAL; fwdev->rcnt = 0; } else if(fwdev->rcnt < FW_MAXDEVRCNT) { fwdev->rcnt ++; } else { STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); free(fwdev, M_FW); } } fc->ongonode = 0; fc->ongoaddr = CSRROMOFF; fc->ongodev = NULL; fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; fw_bus_explore(fc); splx(s); } /* * To collect device informations on the IEEE1394 bus. */ static void fw_bus_explore(struct firewire_comm *fc ) { int err = 0; struct fw_device *fwdev, *pfwdev, *tfwdev; u_int32_t addr; struct fw_xfer *xfer; struct fw_pkt *fp; if(fc->status != FWBUSEXPLORE) return; loop: if(fc->ongonode == fc->nodeid) fc->ongonode++; if(fc->ongonode > fc->max_node) goto done; if(fc->ongonode >= 0x3f) goto done; /* check link */ /* XXX we need to check phy_id first */ if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { if (firewire_debug) printf("node%d: link down\n", fc->ongonode); fc->ongonode++; goto loop; } if(fc->ongoaddr <= CSRROMOFF && fc->ongoeui.hi == 0xffffffff && fc->ongoeui.lo == 0xffffffff ){ fc->ongoaddr = CSRROMOFF; addr = 0xf0000000 | fc->ongoaddr; }else if(fc->ongoeui.hi == 0xffffffff ){ fc->ongoaddr = CSRROMOFF + 0xc; addr = 0xf0000000 | fc->ongoaddr; }else if(fc->ongoeui.lo == 0xffffffff ){ fc->ongoaddr = CSRROMOFF + 0x10; addr = 0xf0000000 | fc->ongoaddr; }else if(fc->ongodev == NULL){ STAILQ_FOREACH(fwdev, &fc->devices, link) if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) break; if(fwdev != NULL){ fwdev->dst = fc->ongonode; fwdev->status = FWDEVATTACHED; fc->ongonode++; fc->ongoaddr = CSRROMOFF; fc->ongodev = NULL; fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; goto loop; } fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT | M_ZERO); if(fwdev == NULL) return; fwdev->fc = fc; fwdev->rommax = 0; fwdev->dst = fc->ongonode; fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; fwdev->status = FWDEVINIT; fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; pfwdev = NULL; STAILQ_FOREACH(tfwdev, &fc->devices, link) { if (tfwdev->eui.hi > fwdev->eui.hi || (tfwdev->eui.hi == fwdev->eui.hi && tfwdev->eui.lo > fwdev->eui.lo)) break; pfwdev = tfwdev; } if (pfwdev == NULL) STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); else STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); device_printf(fc->bdev, "New %s device ID:%08x%08x\n", linkspeed[fwdev->speed], fc->ongoeui.hi, fc->ongoeui.lo); fc->ongodev = fwdev; fc->ongoaddr = CSRROMOFF; addr = 0xf0000000 | fc->ongoaddr; }else{ addr = 0xf0000000 | fc->ongoaddr; } #if 0 xfer = asyreqq(fc, FWSPD_S100, 0, 0, ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, fw_bus_explore_callback); if(xfer == NULL) goto done; #else xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); if(xfer == NULL){ goto done; } xfer->spd = 0; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.rreqq.dest_hi = 0xffff; fp->mode.rreqq.tlrt = 0; fp->mode.rreqq.tcode = FWTCODE_RREQQ; fp->mode.rreqq.pri = 0; fp->mode.rreqq.src = 0; xfer->dst = FWLOCALBUS | fc->ongonode; fp->mode.rreqq.dst = xfer->dst; fp->mode.rreqq.dest_lo = addr; xfer->act.hand = fw_bus_explore_callback; if (firewire_debug) printf("node%d: explore addr=0x%x\n", fc->ongonode, fc->ongoaddr); err = fw_asyreq(fc, -1, xfer); if(err){ fw_xfer_free( xfer); return; } #endif return; done: /* fw_attach_devs */ fc->status = FWBUSEXPDONE; if (firewire_debug) printf("bus_explore done\n"); fw_attach_dev(fc); return; } /* Portable Async. request read quad */ struct fw_xfer * asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, u_int32_t addr_hi, u_int32_t addr_lo, void (*hand) __P((struct fw_xfer*))) { struct fw_xfer *xfer; struct fw_pkt *fp; int err; xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); if (xfer == NULL) return NULL; xfer->spd = spd; /* XXX:min(spd, fc->spd) */ fp = (struct fw_pkt *)xfer->send.buf; fp->mode.rreqq.dest_hi = addr_hi & 0xffff; if(tl & FWP_TL_VALID){ fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; }else{ fp->mode.rreqq.tlrt = 0; } fp->mode.rreqq.tlrt |= rt & 0x3; fp->mode.rreqq.tcode = FWTCODE_RREQQ; fp->mode.rreqq.pri = 0; fp->mode.rreqq.src = 0; xfer->dst = addr_hi >> 16; fp->mode.rreqq.dst = xfer->dst; fp->mode.rreqq.dest_lo = addr_lo; xfer->act.hand = hand; err = fw_asyreq(fc, -1, xfer); if(err){ fw_xfer_free( xfer); return NULL; } return xfer; } /* * Callback for the IEEE1394 bus information collection. */ static void fw_bus_explore_callback(struct fw_xfer *xfer) { struct firewire_comm *fc; struct fw_pkt *sfp,*rfp; struct csrhdr *chdr; struct csrdir *csrd; struct csrreg *csrreg; u_int32_t offset; if(xfer == NULL) { printf("xfer == NULL\n"); return; } fc = xfer->fc; if (firewire_debug) printf("node%d: callback addr=0x%x\n", fc->ongonode, fc->ongoaddr); if(xfer->resp != 0){ printf("node%d: resp=%d addr=0x%x\n", fc->ongonode, xfer->resp, fc->ongoaddr); goto errnode; } if(xfer->send.buf == NULL){ printf("node%d: send.buf=NULL addr=0x%x\n", fc->ongonode, fc->ongoaddr); goto errnode; } sfp = (struct fw_pkt *)xfer->send.buf; if(xfer->recv.buf == NULL){ printf("node%d: recv.buf=NULL addr=0x%x\n", fc->ongonode, fc->ongoaddr); goto errnode; } rfp = (struct fw_pkt *)xfer->recv.buf; #if 0 { u_int32_t *qld; int i; qld = (u_int32_t *)xfer->recv.buf; printf("len:%d\n", xfer->recv.len); for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ printf("0x%08x ", rfp->mode.ld[i/4]); if((i % 16) == 15) printf("\n"); } if((i % 16) != 15) printf("\n"); } #endif if(fc->ongodev == NULL){ if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); chdr = (struct csrhdr *)(&rfp->mode.rresq.data); /* If CSR is minimal confinguration, more investgation is not needed. */ if(chdr->info_len == 1){ if (firewire_debug) printf("node%d: minimal config\n", fc->ongonode); goto nextnode; }else{ fc->ongoaddr = CSRROMOFF + 0xc; } }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); fc->ongoaddr = CSRROMOFF + 0x10; }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { if (firewire_debug) printf("node%d: eui64 is zero.\n", fc->ongonode); goto nextnode; } fc->ongoaddr = CSRROMOFF; } }else{ fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); if(fc->ongoaddr > fc->ongodev->rommax){ fc->ongodev->rommax = fc->ongoaddr; } csrd = SLIST_FIRST(&fc->ongocsr); if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ chdr = (struct csrhdr *)(fc->ongodev->csrrom); offset = CSRROMOFF; }else{ chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; offset = csrd->off; } if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; if( csrreg->key == 0x81 || csrreg->key == 0xd1){ csrd = SLIST_FIRST(&fc->csrfree); if(csrd == NULL){ goto nextnode; }else{ csrd->ongoaddr = fc->ongoaddr; fc->ongoaddr += csrreg->val * 4; csrd->off = fc->ongoaddr; SLIST_REMOVE_HEAD(&fc->csrfree, link); SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); goto nextaddr; } } } fc->ongoaddr += 4; if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && (fc->ongodev->rommax < 0x414)){ if(fc->ongodev->rommax <= 0x414){ csrd = SLIST_FIRST(&fc->csrfree); if(csrd == NULL) goto nextnode; csrd->off = fc->ongoaddr; csrd->ongoaddr = fc->ongoaddr; SLIST_REMOVE_HEAD(&fc->csrfree, link); SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); } goto nextaddr; } while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ if(csrd == NULL){ goto nextnode; }; fc->ongoaddr = csrd->ongoaddr + 4; SLIST_REMOVE_HEAD(&fc->ongocsr, link); SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); csrd = SLIST_FIRST(&fc->ongocsr); if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ chdr = (struct csrhdr *)(fc->ongodev->csrrom); offset = CSRROMOFF; }else{ chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); offset = csrd->off; } } if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ goto nextnode; } } nextaddr: fw_xfer_free( xfer); fw_bus_explore(fc); return; errnode: fc->retry_count++; if (fc->ongodev != NULL) fc->ongodev->status = FWDEVINVAL; nextnode: fw_xfer_free( xfer); fc->ongonode++; /* housekeeping work space */ fc->ongoaddr = CSRROMOFF; fc->ongodev = NULL; fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ SLIST_REMOVE_HEAD(&fc->ongocsr, link); SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); } fw_bus_explore(fc); return; } /* * To attach sub-devices layer onto IEEE1394 bus. */ static void fw_attach_dev(struct firewire_comm *fc) { struct fw_device *fwdev; struct fw_xfer *xfer; int i, err; device_t *devlistp; int devcnt; struct firewire_dev_comm *fdc; STAILQ_FOREACH(fwdev, &fc->devices, link) if (fwdev->status == FWDEVINIT) fwdev->status = FWDEVATTACHED; err = device_get_children(fc->bdev, &devlistp, &devcnt); if( err != 0 ) return; for( i = 0 ; i < devcnt ; i++){ if (device_get_state(devlistp[i]) >= DS_ATTACHED) { fdc = device_get_softc(devlistp[i]); if (fdc->post_explore != NULL) fdc->post_explore(fdc); } } free(devlistp, M_TEMP); /* call pending handlers */ i = 0; while ((xfer = STAILQ_FIRST(&fc->pending))) { STAILQ_REMOVE_HEAD(&fc->pending, link); i++; if (xfer->act.hand) xfer->act.hand(xfer); } if (i > 0) printf("fw_attach_dev: %d pending handlers called\n", i); if (fc->retry_count > 0) { printf("probe failed for %d node\n", fc->retry_count); #if 0 callout_reset(&fc->retry_probe_callout, hz*2, (void *)fc->ibr, (void *)fc); #endif } return; } /* * To allocate uniq transaction label. */ static int fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) { u_int i; struct tlabel *tl, *tmptl; int s; static u_int32_t label = 0; s = splfw(); for( i = 0 ; i < 0x40 ; i ++){ label = (label + 1) & 0x3f; for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ if(tmptl->xfer->dst == xfer->dst) break; } if(tmptl == NULL) { tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); if (tl == NULL) { splx(s); return (-1); } tl->xfer = xfer; STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); splx(s); if (firewire_debug > 1) printf("fw_get_tlabel: dst=%d tl=%d\n", xfer->dst, label); return(label); } } splx(s); printf("fw_get_tlabel: no free tlabel\n"); return(-1); } static void fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec) { char *p; int res, i, len; p = xfer->recv.buf; res = xfer->recv.len; for (i = 0; i < nvec; i++, vec++) { len = vec->iov_len; if (res < len) { printf("rcv buffer(%d) is %d bytes short.\n", xfer->recv.len, len - res); len = res; } bcopy(vec->iov_base, p, len); p += len; res -= len; if (res <= 0) break; } xfer->recv.len -= res; } /* * Generic packet receving process. */ void fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd) { struct fw_pkt *fp, *resfp; struct fw_xfer *xfer; struct fw_bind *bind; struct firewire_softc *sc; int tcode, s; int i, len, oldstate; #if 0 { u_int32_t *qld; int i; qld = (u_int32_t *)buf; printf("spd %d len:%d\n", spd, len); for( i = 0 ; i <= len && i < 32; i+= 4){ printf("0x%08x ", ntohl(qld[i/4])); if((i % 16) == 15) printf("\n"); } if((i % 16) != 15) printf("\n"); } #endif fp = (struct fw_pkt *)vec[0].iov_base; tcode = fp->mode.common.tcode; #if 0 /* XXX this check is not valid for RRESQ and WREQQ */ if (vec[0].iov_len < fc->tcode[tcode].hdr_len) { #if __FreeBSD_version >= 500000 printf("fw_rcv: iov_len(%zu) is less than" #else printf("fw_rcv: iov_len(%u) is less than" #endif " hdr_len(%d:tcode=%d)\n", vec[0].iov_len, fc->tcode[tcode].hdr_len, tcode); } #endif switch (tcode) { case FWTCODE_WRES: case FWTCODE_RRESQ: case FWTCODE_RRESB: case FWTCODE_LRES: xfer = fw_tl2xfer(fc, fp->mode.hdr.src, fp->mode.hdr.tlrt >> 2); if(xfer == NULL) { printf("fw_rcv: unknown response " "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", tcode, fp->mode.hdr.src, fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, fp->mode.rresq.data); #if 1 printf("try ad-hoc work around!!\n"); xfer = fw_tl2xfer(fc, fp->mode.hdr.src, (fp->mode.hdr.tlrt >> 2)^3); if (xfer == NULL) { printf("no use...\n"); goto err; } #else goto err; #endif } fw_rcv_copy(xfer, vec, nvec); xfer->resp = 0; /* make sure the packet is drained in AT queue */ oldstate = xfer->state; xfer->state = FWXF_RCVD; switch (oldstate) { case FWXF_SENT: fw_xfer_done(xfer); break; case FWXF_START: if (firewire_debug) printf("not sent yet\n"); break; default: printf("unexpected state %d\n", xfer->state); } return; case FWTCODE_WREQQ: case FWTCODE_WREQB: case FWTCODE_RREQQ: case FWTCODE_RREQB: case FWTCODE_LREQ: bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi, fp->mode.rreqq.dest_lo); if(bind == NULL){ #if __FreeBSD_version >= 500000 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n", #else printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n", #endif fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, tcode, fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); if (fc->status == FWBUSRESET) { printf("fw_rcv: cannot respond(bus reset)!\n"); goto err; } xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0); if(xfer == NULL){ return; } xfer->spd = spd; resfp = (struct fw_pkt *)xfer->send.buf; switch (tcode) { case FWTCODE_WREQQ: case FWTCODE_WREQB: resfp->mode.hdr.tcode = FWTCODE_WRES; xfer->send.len = 12; break; case FWTCODE_RREQQ: resfp->mode.hdr.tcode = FWTCODE_RRESQ; xfer->send.len = 16; break; case FWTCODE_RREQB: resfp->mode.hdr.tcode = FWTCODE_RRESB; xfer->send.len = 16; break; case FWTCODE_LREQ: resfp->mode.hdr.tcode = FWTCODE_LRES; xfer->send.len = 16; break; } resfp->mode.hdr.dst = fp->mode.hdr.src; resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; resfp->mode.hdr.pri = fp->mode.hdr.pri; resfp->mode.rresb.rtcode = 7; resfp->mode.rresb.extcode = 0; resfp->mode.rresb.len = 0; /* xfer->act.hand = fw_asy_callback; */ xfer->act.hand = fw_xfer_free; if(fw_asyreq(fc, -1, xfer)){ fw_xfer_free( xfer); return; } goto err; } len = 0; for (i = 0; i < nvec; i ++) len += vec[i].iov_len; switch(bind->act_type){ case FWACT_XFER: /* splfw()?? */ xfer = STAILQ_FIRST(&bind->xferlist); if (xfer == NULL) { printf("Discard a packet for this bind.\n"); goto err; } STAILQ_REMOVE_HEAD(&bind->xferlist, link); fw_rcv_copy(xfer, vec, nvec); xfer->spd = spd; if (fc->status != FWBUSRESET) xfer->act.hand(xfer); else STAILQ_INSERT_TAIL(&fc->pending, xfer, link); return; break; case FWACT_CH: if(fc->ir[bind->sub]->queued >= fc->ir[bind->sub]->maxq){ device_printf(fc->bdev, "Discard a packet %x %d\n", bind->sub, fc->ir[bind->sub]->queued); goto err; } xfer = STAILQ_FIRST(&bind->xferlist); if (xfer == NULL) { printf("Discard packet for this bind\n"); goto err; } STAILQ_REMOVE_HEAD(&bind->xferlist, link); fw_rcv_copy(xfer, vec, nvec); xfer->spd = spd; s = splfw(); fc->ir[bind->sub]->queued++; STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link); splx(s); wakeup((caddr_t)fc->ir[bind->sub]); return; break; default: goto err; break; } break; case FWTCODE_STREAM: { struct fw_xferq *xferq; xferq = fc->ir[sub]; #if 0 printf("stream rcv dma %d len %d off %d spd %d\n", sub, len, off, spd); #endif if(xferq->queued >= xferq->maxq) { printf("receive queue is full\n"); goto err; } /* XXX get xfer from xfer queue, we don't need copy for per packet mode */ xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ vec[0].iov_len); if(xfer == NULL) goto err; fw_rcv_copy(xfer, vec, nvec); xfer->spd = spd; s = splfw(); xferq->queued++; STAILQ_INSERT_TAIL(&xferq->q, xfer, link); splx(s); sc = device_get_softc(fc->bdev); #if __FreeBSD_version >= 500000 if (SEL_WAITING(&xferq->rsel)) #else if (&xferq->rsel.si_pid != 0) #endif selwakeup(&xferq->rsel); if (xferq->flag & FWXFERQ_WAKEUP) { xferq->flag &= ~FWXFERQ_WAKEUP; wakeup((caddr_t)xferq); } if (xferq->flag & FWXFERQ_HANDLER) { xferq->hand(xferq); } return; break; } default: printf("fw_rcv: unknow tcode %d\n", tcode); break; } err: return; } /* * Post process for Bus Manager election process. */ static void fw_try_bmr_callback(struct fw_xfer *xfer) { struct fw_pkt *rfp; struct firewire_comm *fc; int bmr; if (xfer == NULL) return; fc = xfer->fc; if (xfer->resp != 0) goto error; if (xfer->send.buf == NULL) goto error; if (xfer->recv.buf == NULL) goto error; rfp = (struct fw_pkt *)xfer->recv.buf; if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) goto error; bmr = ntohl(rfp->mode.lres.payload[0]); if (bmr == 0x3f) bmr = fc->nodeid; CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); fw_xfer_free(xfer); fw_bmr(fc); return; error: device_printf(fc->bdev, "bus manager election failed\n"); fw_xfer_free(xfer); } /* * To candidate Bus Manager election process. */ static void fw_try_bmr(void *arg) { struct fw_xfer *xfer; struct firewire_comm *fc = (struct firewire_comm *)arg; struct fw_pkt *fp; int err = 0; xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20); if(xfer == NULL){ return; } xfer->spd = 0; fc->status = FWBUSMGRELECT; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.lreq.dest_hi = 0xffff; fp->mode.lreq.tlrt = 0; fp->mode.lreq.tcode = FWTCODE_LREQ; fp->mode.lreq.pri = 0; fp->mode.lreq.src = 0; fp->mode.lreq.len = 8; fp->mode.lreq.extcode = FW_LREQ_CMPSWAP; xfer->dst = FWLOCALBUS | fc->irm; fp->mode.lreq.dst = xfer->dst; fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; fp->mode.lreq.payload[0] = htonl(0x3f); fp->mode.lreq.payload[1] = htonl(fc->nodeid); xfer->act.hand = fw_try_bmr_callback; err = fw_asyreq(fc, -1, xfer); if(err){ fw_xfer_free( xfer); return; } return; } #ifdef FW_VMACCESS /* * Software implementation for physical memory block access. * XXX:Too slow, usef for debug purpose only. */ static void fw_vmaccess(struct fw_xfer *xfer){ struct fw_pkt *rfp, *sfp = NULL; u_int32_t *ld = (u_int32_t *)xfer->recv.buf; printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); if(xfer->resp != 0){ fw_xfer_free( xfer); return; } if(xfer->recv.buf == NULL){ fw_xfer_free( xfer); return; } rfp = (struct fw_pkt *)xfer->recv.buf; switch(rfp->mode.hdr.tcode){ /* XXX need fix for 64bit arch */ case FWTCODE_WREQB: xfer->send.buf = malloc(12, M_FW, M_NOWAIT); xfer->send.len = 12; sfp = (struct fw_pkt *)xfer->send.buf; bcopy(rfp->mode.wreqb.payload, (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); sfp->mode.wres.tcode = FWTCODE_WRES; sfp->mode.wres.rtcode = 0; break; case FWTCODE_WREQQ: xfer->send.buf = malloc(12, M_FW, M_NOWAIT); xfer->send.len = 12; sfp->mode.wres.tcode = FWTCODE_WRES; *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; sfp->mode.wres.rtcode = 0; break; case FWTCODE_RREQB: xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); sfp = (struct fw_pkt *)xfer->send.buf; bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); sfp->mode.rresb.tcode = FWTCODE_RRESB; sfp->mode.rresb.len = rfp->mode.rreqb.len; sfp->mode.rresb.rtcode = 0; sfp->mode.rresb.extcode = 0; break; case FWTCODE_RREQQ: xfer->send.buf = malloc(16, M_FW, M_NOWAIT); xfer->send.len = 16; sfp = (struct fw_pkt *)xfer->send.buf; sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); sfp->mode.wres.tcode = FWTCODE_RRESQ; sfp->mode.rresb.rtcode = 0; break; default: fw_xfer_free( xfer); return; } sfp->mode.hdr.dst = rfp->mode.hdr.src; xfer->dst = ntohs(rfp->mode.hdr.src); xfer->act.hand = fw_xfer_free; xfer->retry_req = fw_asybusy; sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; sfp->mode.hdr.pri = 0; fw_asyreq(xfer->fc, -1, xfer); /**/ return; } #endif /* * CRC16 check-sum for IEEE1394 register blocks. */ u_int16_t fw_crc16(u_int32_t *ptr, u_int32_t len){ u_int32_t i, sum, crc = 0; int shift; len = (len + 3) & ~3; for(i = 0 ; i < len ; i+= 4){ for( shift = 28 ; shift >= 0 ; shift -= 4){ sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; } crc &= 0xffff; } return((u_int16_t) crc); } static int fw_bmr(struct firewire_comm *fc) { struct fw_device fwdev; union fw_self_id *self_id; int cmstr; /* Check to see if the current root node is cycle master capable */ self_id = &fc->topology_map->self_id[fc->max_node]; if (fc->max_node > 0) { /* XXX check cmc bit of businfo block rather than contender */ if (self_id->p0.link_active && self_id->p0.contender) cmstr = fc->max_node; else { device_printf(fc->bdev, "root node is not cycle master capable\n"); /* XXX shall we be the cycle master? */ cmstr = fc->nodeid; /* XXX need bus reset */ } } else cmstr = -1; device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { /* We are not the bus manager */ printf("\n"); return(0); } printf("(me)\n"); /* Optimize gapcount */ if(fc->max_hop <= MAX_GAPHOP ) fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); /* If we are the cycle master, nothing to do */ if (cmstr == fc->nodeid || cmstr == -1) return 0; /* Bus probe has not finished, make dummy fwdev for cmstr */ bzero(&fwdev, sizeof(fwdev)); fwdev.fc = fc; fwdev.dst = cmstr; fwdev.speed = 0; fwdev.maxrec = 8; /* 512 */ fwdev.status = FWDEVINIT; /* Set cmstr bit on the cycle master */ fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 8), fw_asy_callback_free); return 0; } DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); MODULE_VERSION(firewire, 1);